Method and apparatus for rf performance metric estimation.
Abstract
A technique for obtaining a radio frequency (RF) performance metric estimate for a receiver used for at least one of a positioning measurement and a timing measurement is described. A method implementation of that technique includes the steps of calculating at least one of a detection probability and a false alarm rate for a radio signal usable for the measurement, and obtaining at least one RF performance metric estimate for the receiver based on at least one of the calculated detection probability and the calculated false alarm rate.

Term
7 yearsleft in the term
Expires 1 October 2033.
- Priority
- Filed
- Granted
- Today
- Expires
25 claims: 13 independent, 12 dependent
- 1REIVINDICACIONES 1. Un método (600) para obtener una estimación métrica de rendimiento, de RF, de Radio Frecuencia para un receptor (200; 300; 402; 530) utilizado por al menos una de una medición de posicionamiento y una medición de tiempo, caracterizado porque el método se compone por un procedimiento de prueba realizado por al menos un nodo de equipo de prueba y comprende:calcular (608) al menos una probabilidad de detección y un índice de falsa alarma para una señal de radio que puede utilizarse para la medición;obtener (608) al menos una estimación métrica de rendimiento de RF para el receptor basada en al menos una de la probabilidad de detección calculada y el índice de falsa alarma calculado;y verificar (610) al menos una estimación métrica de rendimiento de RF contra al menos un valor métrico de rendimiento de RF pre definido o configurado, en donde se especifica un canal de referencia para la transmisión de señal de radio, y en donde al menos un valor métrico de rendimiento de RF predefinido o configurado podría cumplirse para el canal de referencia.
- 2El método de conformidad con la reivindicación 1, caracterizado porque iMPie INSTITUTO MEXICANO \ menos una estimación métrica «ή»!' RF se compone por la probabilidad de detección calculada y/ _Ί índice de alarma falsa calculado.
- 3El método de conformidad con cualquiera de las reivindicaciones precedentes, caracterizado porque la estimación métrica de rendimiento de RF se obtiene para un receptor de un nodo de medición (400;510) en la forma de una Unidad de Medición de Ubicación, LMU.
- 4El método de conformidad con la reivindicación 1, caracterizado porque al menos un valor métrico de rendimiento de RF es al menos uno de una probabilidad de detección de objetivo o de referencia y un índice de alarma falsa objetivo o de referencia.
- 5El método de conformidad con la reivindicación 1 o 4, caracterizado porque una primera estimación métrica de rendimiento de RF se obtiene basada en la probabilidad de detección calculada y una segunda estimación métrica de rendimiento de RF se obtiene basada en el índice de falsa alarma calculado, y en donde ambas de la primera y segunda estimaciones métricas de rendimiento de RF se verifican.
- 6El método de conformidad con cualquiera de las reivindicaciones precedentes, caracterizado porque las etapas se realizan por un nodo (520) de equipo de prueba para un nodo (4 00;510) de medición que comprende el INSTITUTO MEXICANO DE LA TÁOWtOA O INDUSTRIAL receptor.
- 7El método de conformidad con la reivindicación 6, caracterizado además porque comprende:recibir (606), por el nodo de equipo de prueba, los resultados de medición del nodo de medición;y analizar, por el nodo de equipo de prueba, los resultados de medición para determinar si el dispositivo de medición cumple los requerimientos o no.
- 8El método de conformidad con la reivindicación 7, caracterizado porque los resultados de medición se reciben en respuesta a las peticiones de medición
- 9El método de conformidad con la reivindicación 7 u 8, caracterizado porque analizar los resultados de medición comprende comparar estadísticas de los resultados de medición con resultados de referencia.
- 10El método de conformidad con cualquiera de las reivindicaciones 7 a 9, caracterizado porque la probabilidad de detección y/o el índice de falsa alarma son/es calculado en conexión con analizar los resultados de medición.
- 11El método de conformidad con cualquiera de las reivindicaciones precedentes, caracterizado porque la probabilidad de detección puede ser indicativa de INSTITUTO MEXICANO DE LA PROPIEDAD INDUSTRIAL determinar la presencia de la señal de radio.____ ..
- 12El método de conformidad con cualquiera de las reivindicaciones precedentes, caracterizado porque el índice de falsa alarma es indicativo de determinación de señal de radio cuando la señal de radio no se encuentra presente.
- 13El método de conformidad con cualquiera de las reivindicaciones precedentes, caracterizado porque al menos una de la probabilidad de detección y el índice de falsa alarma puede calcularse por el receptor o puerto de antena de un nodo de medición.
- 14El método de conformidad con cualquiera de las reivindicaciones precedentes, caracterizado porque el receptor cumple con Evolución de Largo Plazo, LTE, y en donde al menos una de la probabilidad de detección y el índice de falsa alarma se calcula para una señal de radio que comprende una Señal de Referencia de Sondeo de Enlace ascendente, SRS.
- 15El método de conformidad con la reivindicación 1, caracterizado porque el canal de referencia se especifica para una señal de referencia física.
- 16El método de conformidad con la reivindicación 15, caracterizado porque la señal de referencia física es una Señal de Referencia de Sondeo, SRS.
- 17El método de conformidad con la reivindicación 16 en conexión con la reivindicación 14, caracterizado porque el canal de referencia se utiliza para transmitir uno o más parámetros de SRS para permitir la detección de la SRS de enlace ascendente.
- 18El método de conformidad con cualquiera de las reivindicaciones 1 ó 15, 17, en donde el canal de referencia se caracteriza por uno o más de los siguientes parámetros:modulación, secuencia de señal, programación de transmisión o recepción que incluye recursos de tiempo y/o frecuencia, ancho de banda de señal, configuración de salto de frecuencia, C-RNTI de celda asociada, código o secuencia especifica asociada con un dispositivo inalámbrico desde el que se obtiene la señal de referencia, configuración dúplex, configuración de CA, parámetros de control de potencia, EARFCN, prefijo cíclico UL, ancho de banda del sistema UL de la celda, configuración de ancho de banda de SRS de celda específica, configuración de ancho de banda de UE específico, número de puerto de antena para la transmisión de SRS, posición de dominio de frecuencia de SRS, configuración de ancho de banda de salto de frecuencia de SRS, cambio cíclico de SRS, peine de transmisión de SRS, índice de configuración de SRS, MaxUpPt utilizado para TDD solamente, indicación de qué salto de grupo está habilitado, y parámetro de SS delta.
- 19El método de conformidad con cualquiera de las reivindicaciones precedentes caracterizado porque 1Μ P I INSTITUTO MEXICANO DE LA PROPIEDAD INDUSTRIAL el receptor o un nodo de medición que comprénda el receptor puede adaptarse para al menos una de una medición de Diferencia de Tiempo de Llegada (TDOA) y una medición de Tiempo Relativo de Llegada (RTOA).
- 20El método de conformidad con cualquiera de las reivindicaciones precedentes, caracterizado además porque comprende configurar al menos una de una medición de posicionamiento y una medición de tiempo que responde a o que se adapta basada en la estimación métrica de rendimiento de RF obtenida.
- 21Un medio legible por computadora que instalado en una computadora, causa que la computadora realice los pasos de cualquiera de las reivindicaciones 1-20.
- 22Un nodo (520) de equipo de prueba caracterizado porque comprende un aparato (560) para obtener una estimación métrica de rendimiento, de RF, de Radio Frecuencia para un receptor (200; 300; 402; 530) utilizado por al menos una de una medición de posicionamiento y una medición de tiempo, el aparato se configura para:- calcular al menos una probabilidad de detección y un índice de falsa alarma de una señal de radio que puede utilizarse para la medición;obtener al menos una estimación métrica de rendimiento de RF para el receptor basada en al menos una de la calculado;verificar al menos una estimación métrica de rendimiento de RF contra al menos un valor métrico de rendimiento de RF predefinido o configurado, y - especificar un canal de referencia para transmisión de señal de radio de manera que al menos un valor métrico de rendimiento de RF predefinido o configurado podría cumplirse para el canal de referencia.
- 23Un sistema de gestión de rendimiento de receptor caracterizado porque comprende:el nodo de equipo de prueba de la reivindicación 22;y al menos un nodo de medición (400;510) que comprende el receptor (200;300;402;530).
- 24El sistema de conformidad con la reivindicación 23, caracterizado porque al menos un nodo de medición comprende al menos una de una Unidad de Medición de Ubicación, LMU, y un Nodo B Evolucionado, eNodoB, que comprende el receptor para el cual se obtiene la estimación métrica de rendimiento de RF.
- 25El sistema de conformidad con la reivindicación 23 ó 24, caracterizado porque el receptor cumple con un tipo de RF de receptor y en donde el sistema se configura para adaptar el tipo de RF de receptor para cumplir al menos un valor métrico de rendimiento de RF predefinido o configurado o resultados de referencia. IMPI INSTITUTO MEXICANO OE LA PROPIEDAD ir.’7L.'ST’!AL Se describe una técnica para obtener una estimación métrica de rendimiento de radiofrecuencia (RF) para un receptor utilizado por al menos una de una medición de posicionamiento y una medición de tiempo. Una implementación de método de esa técnica incluye las etapas de calcular al menos una de una probabilidad de detección y un índice de falsa alarma para una señal de radio que puede utilizarse para la medición, y obtención de al menos una estimación métrica de rendimiento de RF para el receptor basada en al menos una de la probabilidad de detección calculada y el índice de falsa alarma calculado. 1/8 INSTITUTO MEXICANO OS LA MOP.'EIHd industrial Red central 2/8 O O OJ 3/8 CO ro >_ 3 en iZ O O CO ΙΑ.. 4/e 400 404 6/8 ί> r Mensaje de Informe Mensaje de Control Figu o o rΐ< ΡI INSTITUTO MEIir, f _. Q M LA MQWII,*;, industria ;8/8 ib Adaptar configuración de receptoi
Independent claims25
606 paragraphs in 73 sections, as filed
(54) Title: METHOD AND APPARATUS FOR METRIC ESTIMATION OF RF PERFORMANCE.
(54) Title: METHOD AND APPARATUS FOR RF PERFORMANCE METRIC ESTIMATION.
(57) Summary
A technique for obtaining a metric estimate of radio frequency (RF) performance for a receiver used by at least one of a positioning measurement and a time measurement is described. One method implementation of that technique includes the steps of calculating at least one of a detection probability and a false alarm rate for a radio signal that can be used for measurement, and obtaining at least a metric estimate of RF performance. for the receiver based on at least one of the calculated detection probability and the calculated false alarm index.
(57) Abstract
A technique for obtaining a radio frequency (RF) performance metric estimate for a receiver used for at least one of a positioning measurement and a timing measurement is described. A method implementation of that technique includes the steps of calculating at least one of a detection probability and a false alarm rate for a radio signal usable for the measurement, and obtaining at least one RF performance metric estímate for the receiver based on at least one of the calculated detection probability and the calculated false alarm rate.
<img file="MX343394B_D0001.tif" />
PATENT TITLE NO. 343394
I KNOW
Mexican Institute of Industrial Property
<td>Headlines):</td><td>TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)</td>
<td>Home:</td><td>SE-164 83, Stockholm, SWEDEN</td>
Denomination:
METHOD AND APPARATUS FOR RF PERFORMANCE METRIC ESTIMATION.
Classification: lnt.CI.8: H04B17 / 21; H04B17 / 309; H04W24 / 10; H04W64 / 00
<img file="MX343394B_D0002.tif" />
IANA SIOMINA, ALIREZA NEJATIAN
REQUEST
International filing date:
MX / a / 2015/004138 October 2013
PRIORITY
Country: Date: Number:
US October 1, 2012 61 / 708,177
Validity: Twenty years
Expiration Date: October 1, 2033
The reference patent is granted based on articles 1 2<sup>or</sup> fraction V, 6 “fraction IU, and 59 gives the Industrial Property Law.
Pursuant to article 23 of the Industrial Property Law, this patent has a non-extendable term of twenty years, counted from the filing date of the international application and will be subject to the payment of the fee to maintain the rights in force. .
Who subscribes to the prerogative titled: does so based on the provisions of the attfouto · β * táCOtoW III and 7<sup>or</sup> bis 2 of the Industrial Property Law (Qbrio Oficial de la Federación (DO F) 06/27/1991. amended on 08/02/1994, W10 / 1996, 12/26/1967, 05/17/1999, 26 / 01/2004, 06/16/2005, 01/25/2006, 06/05/2009, 06/01/2010, 06/18/2010, 28 / QW2MO, JfOS / 04/2012); items 1<sup>or</sup>. 3<sup>or</sup> section V subsection a), 4 'and 12 ° sections I and III of the Regulation of the Mfetkano Institute of Industrial PtppieM (DOF 12/14/1996, amended on 07/01/2002, 07/15/2004, 07/28/2007 / 2004 and 09/07/2007); articles 1, 3 «, 4», β »feacctónV subsection a), 16 sections I and III and 30 of the Organic Declaration of the Mexican Institute of Industrial Property (DOF 12/27/1999, amended 10/10/2002 , 07/29/2004, 08/04/2004 and 13 ^ 9/2007); one<sup>or</sup>, 3<sup>or </sup>and 5<sup>or</sup> subsection a) of the Agreement that delegates powers to the Deputy Directors General, Coordinator, Div «onai« Directors, Holders of the Regional Offices, Divisional Deputy Directors, Departmental Coordinators and other subordinates of the Mexican Institute of Industrial Property. (DOF 12/15/1999, amended on 02/04/2000, 07/29/2004, 08/04/2004 and 09/13/2007)
Issue Date: November 4, 2016
THE DIVISIONAL DIRECTOR OF PATENTS
<img file="MX343394B_D0003.tif" />
MX / 2016/90000
METHOD AND APPARATUS FOR RF PERFORMANCE METRIC ESTIMATION
<img file="MX343394B_D0004.tif" />
Technical Field
The present invention is generally related to wireless communications. In particular, we present a technique for obtaining a Radio Frequency (RF) estimate for a receiver that is used by at least one of a positioning measurement and a time measurement. The technique can be implemented in the form of a method, a computer program product, an apparatus, and a system.
Background
Positioning measurements are an important feature of modern wireless communication networks. In the exemplary case of an emergency call from a mobile phone, the location of the mobile phone may need to be determined by a positioning measurement when the caller is unable to provide the corresponding information.
Positioning measurements in wireless communication networks are often based on time measurements. In this regard, TDOA-based positioning procedures can be mentioned. TDOA is an abbreviation for Time of Arrival Differences and exploits time information obtained from RF receivers to calculate the position, or location, of a wireless device in communication with
IMPI Oops,
MEXICAN INSTITUTE \ <· ^ -> ')
The íkOflSPAD s'
INDUSTRIAL - those receivers.
TDOA-based positioning procedures and similar techniques have advantages over Systems-based positioning procedures
Satellite of
Global Navigation (GNSS), such as
Positioning
Global (GPS) or
GALILEO.
First, the latest procedures require that the wireless device is currently equipped with a GNSS receiver, which may not be the case for certain classes of wireless devices (eg, pre-existing phones).
Furthermore, the GNSS receiver, when presented, must also be in an active state.
Because GNSS receivers have considerable power consumption, users often prefer to disable it unless specifically needed (for example, for route guidance purposes). Still additionally, the receivers of
GNSS require a clear view of multiple satellites to derive a correct position. This condition is typically not met when a wireless device is operated indoors surrounded by buildings.
As such, positioning procedures that rely on the infrastructure of a wireless communication network are often the only possibility to detect the location of a wireless device. Furthermore, TDOA and
IMPI
MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY
<img file="MX343394B_D0005.tif" />
Similar positioning procedures ^ TLañto Ήβ a wireless communication network only works properly when the proper performance of the associated receivers can be guaranteed. For example, inaccuracies in time measurements by receivers will directly influence the accuracy of TDOA-based positioning.
Compendium of the Invention
There is a need for a technique to obtain a metric estimate of (RF) performance for a receiver used by at least one of a positioning measurement and a time measurement.
According to a first aspect, a method of obtaining a metric RF performance estimate for a receiver used by at least one of a positioning measurement and a time measurement is provided. The method comprises calculating at least one of a detection probability and a false alarm index for a radio signal that can be used for the measurement. The method further comprises obtaining at least a metric RF performance estimate for the receiver based on at least one of the calculated detection probability and the calculated false alarm rate.
In one implementation at least one RF performance metric estimate is made up of the calculated probability of detection and / or the calculated false alarm rate. In other
<img file="MX343394B_D0006.tif" />
implementation, the calculated probability of detection · and / or the calculated false alarm index eT can be calculated
<td>additional or</td><td>stages</td><td>of</td><td>processing to get at least</td><td>a</td>
<td colspan="2">metric estimation</td><td>of</td><td>RF performance.</td><td></td>
<td>The</td><td colspan="2">receiver</td><td>for which the metric estimate</td><td>of</td>
<td>performance</td><td>RF</td><td>I know</td><td>gets can belong to a node</td><td>of</td>
measurement. The measurement node can be a separate node. Alternatively, the measurement node can be integrated into a base station or can be co-located with the base station. In the last variant the measurement node can share one or more antennas with the base station. The measurement node can generally take the form of a Location Measurement Unit (LMU).
The method described herein can be understood by a test procedure for the receiver. In such a case the method may further comprise verifying at least one RF performance metric estimate against at least one predefined or configured RF performance metric value. At least one RF performance metric value may be at least one of a target or reference detection probability and a target or reference false alarm rate. In a variant, a first RF performance metric estimate is obtained based on the calculated probability of detection and a second RF performance metric estimate is obtained based on the calculated false alarm rate. In such case, both of the first and second metric RF performance estimates can
IMPI
MEXICAN INSTITUTE
DE LA MONEDAD \ rC¿> ·
INDUSTRIAL «1 - ^ - be verified. ——- -
The method steps presented here can generally be performed, at least in part, by a test equipment node for a measurement node comprising the receiver. One or more of those steps can also be performed by the measurement node.
In a variant, the method comprises receiving, by the test equipment node, measurement results (eg, in measurement reports) from the measurement node and analyzing, by the test equipment node, the measurement results for determine whether or not the measurement device meets the requirements (such as the reference / target detection probability and / or the reference / target false alarm as mentioned above, or reference results). Measurement results can be received from the measurement node in response to measurement requests. As an example, each measurement request can be used to trigger an associated measurement result. Measurement requests can be sent to the test equipment node.
The step of analyzing the measurement results may comprise comparing statistics of the measurement results with reference results. Statistics of measurement results can be generated (eg calculated) taking into account one or more of the measurement reports and measurement requests. The calculated detection probability and / or the index
<img file="MX343394B_D0007.tif" />
INSTITUTO MBX: CANO DE LA rtCPfEDAD INDUSTRIAL
<img file="MX343394B_D0008.tif" />
False alarm calculations can be derived in the form of such statistics. As an example, the probability of detection can be defined as the ratio of the received measurement reports to the total number of measurement requests. As a further example 5, the false alarm rate can be defined as the percentage of measurement reports received with the total number of measurement requests with the measurement configuration of a radio signal not present. As such, the probability of detection and / or the false alarm rate can be calculated in connection with analyzing the measurement results.
Generally, the probability of detection can be indicative of determining the presence of a radio signal. In a similar way, the false alarm rate may be indicative for determining radio signal when radio signal 15 is not present.
At least one of the detection probability and false alarm rate can be calculated by receiver or antenna port of a measurement node. The measurement node can thus comprise multiple receivers and / or multiple antenna ports.
The receiver is in a variant that complies with Long-Term Evolution (LTE). In such case at least one of the detection probability and the false alarm rate can be calculated by a radio signal comprising an uplink Probing Reference Signal (SRS).
A reference channel can be specified for the
<img file="MX343394B_D0009.tif" />
radio signal transmission. At least one predefined or configured RF performance or reference mentioned herein shall
I
INSTITUTO MPXIC. '. OF INDUSTRIAL PROPERTY metric value ae<sup>_</sup> the results to be met for the
<img file="MX343394B_D0010.tif" />
<td>channel</td><td>of</td><td>reference.</td>
<td></td><td></td><td>The reference channel can be specified for a</td>
<td>signal</td><td>of</td><td>physical reference, such as an SRS. The channel of</td>
Reference can be used to transmit one or more SRS parameters to allow SRS detection, such as uplink SRS for an LTE receiver.
The method where the reference channel is characterized by one or more of the following parameters: modulation, signal sequence, transmission or reception scheduling including time and / or frequency resources, signal bandwidth, frequency hopping configuration, C-RNTI associated with the cell, code, or specific sequence associated with a wireless device from which the reference signal is obtained, duplex configuration, AC configuration, power control parameters, EARFCN, UL cyclic prefix, cell system UL bandwidth, Specific cell SRS bandwidth setting, specific UE bandwidth setting, number of antenna ports for SRS transmission, SRS frequency domain position, SRS frequency hopping bandwidth setting, SRS cyclic shift, SRS transmission comb, SRS configuration index, MaxUpPt used for TDD only, indication of whether the
<img file="MX343394B_D0011.tif" />
<sup>8</sup> ΙΜΡΙ ^ ΜΏ
MEXICAN INSTITUTE <sup>,</sup>'S5 *. · <4
OF THE PAWN AGE
INDUSTRIAL —--- group jump is enabled, and SS delta parameter - -
The receiver or a measurement node comprising the receiver can be adapted for at least one of a Time of Difference of Arrival (TDOA) measurement and a Relative Time of Arrival (RTOA) measurement. The TDOA measurement may be an uplink TDOA (U-TDOA) measurement performed by an LMU.
The method may also comprise configuring at least one of a positioning measurement and a time measurement in response to or adaptively based on the obtained RF performance metric estimate. In one implementation, the configuration is performed by a test equipment node relative to a measurement node.
Also provided is a computer program product comprising portions of program code for performing the steps of any of the methods represented herein when the computer program product is executed by a computing device. The computing device that is executed by the computer program product can be performed by a test equipment node.
The computer program product can be stored on a computer-readable recording medium, such as a CD-ROM, DVD, or a semiconductor memory. The computer program product can also be provided for download via a wired or wireless network connection.
<img file="MX343394B_D0012.tif" />
According to an additional aspect ·!, ·! An oppute to 'obtain a metric estimate of RF performance for a receiver used by at least one of a positioning measurement and a time measurement is provided. The appliance is configured to calculate at least one of a
<img file="MX343394B_D0013.tif" />
probability of detection and a false alarm rate of a radio signal that can be used for measurement. The apparatus is further configured to obtain at least a metric RF performance estimate for the receiver based on at least one of the calculated detection probability and the calculated false alarm rate.
The apparatus may be included in a test equipment node. The test equipment node can be a separate node or integrated into another node.
Furthermore, a receiver performance management system is provided comprising the test equipment node and at least one measurement node comprising the receiver. At least one measurement node may comprise at least one of an LMU and an evolved NodeB comprising the receiver so that the RF performance metric estimate is obtained.
The receiver can generally comply with a type of receiver RF (for example, as defined below). In such case the receiver performance management system can be configured to suit the receiver RF type to meet at least one predefined RF performance metric value
<img file="MX343394B_D0014.tif" />
<img file="MX343394B_D0015.tif" />
Present .
Brief Description of Drawings
Additional aspects, advantages and details of the technique shown herein will be discussed in more detail with reference to the exemplary embodiments and drawings, wherein:
Figure 1 illustrates an embodiment of a measurement node system in accordance with an embodiment of the present disclosure;
Figure 2 illustrates the receiver input architecture according to an embodiment of the present description;
Figure 3 illustrates an embodiment of a receiver architecture with a digital signal processor in accordance with an embodiment of the present disclosure;
Figure 4 illustrates one embodiment of a measurement node;
Figure 5 illustrates a receiver performance management system in accordance with an embodiment of the present disclosure;
Figure 6 illustrates a flow chart of an embodiment of a method in accordance with the present description;
Figure 7 illustrates a network node system for adapting RF receiver configurations in accordance with the present description; and
<img file="MX343394B_D0016.tif" />
<img file="MX343394B_D0017.tif" />
Figure 8 illustrates a flow diagram of an embodiment of the additional method according to the present description.
<td colspan="3">Detailed description</td><td rowspan="2">the</td><td rowspan="2">modalities</td>
<td>In</td><td>The next</td><td>description of</td>
<td>eg empiaries,</td><td>for purposes</td><td>of explanation and</td><td>do not give</td><td>limitation,</td>
<td colspan="3">specific details such as</td><td>how</td><td>sequences</td>
specific signaling stages and node specific modalities to provide a full understanding of the technique shown herein. It will be apparent to someone experienced in art that the technique can also be practiced in other modalities that deviate from those specific details. For example, while the following modalities will primarily be described with reference to LTE and LMU, it will be appreciated that the technique used herein is not limited to these examples.
In addition, those skilled in the art will appreciate that the services, functions, and steps explained herein below can be implemented using software functionality in conjunction with a programmed microprocessor, a Specific Application Integrated Circuit (ASIC), a Digital Signal Processor ( DPS) or a general-purpose computer. It will also be appreciated that although the following modalities will be described primarily in the context of methods and devices, the technique shown herein may also be represented in a program product.
<img file="MX343394B_D0018.tif" />
IMPI
MEXICAN INSTITUTE OF THE PXOHSDAD
<img file="MX343394B_D0019.tif" />
computer as well as in a system comprising a computer processor and memory coupled to the processor, wherein the memory is encoded with one or more programs that can perform the services, functions and steps described herein.
The present description relates to wireless communication networks and in particular to networks that perform positioning based on measurements made on radio signals. Some of the described modalities, however, are not limited to positioning and may also apply to other services and nodes, for example, general-purpose radio base stations such as eNodeB. Abbreviations used hereafter, when not immediately defined at their first occurrence, are defined at the end of this detailed description.
Next, some general explanations will be given in connection with the radio and positioning requirements, which are the basis and complement at least one of the solutions and modalities of the present description. The terms modality and solution are used interchangeably herein.
Radio requirements
User Equipment (UE) as well as base stations (BS) have to meet a specified set of RF transmitter and RF receiver requirements for
11V1 ji 1 MEXICAN INSTITUTE OF THE INDUSTRIAL PKOPIFDAU ensure that wireless devices limit interference and are capable of handling a certain level of interference respectively.
More specifically, the out-of-band (OOB) and false emission requirements must meet as part of the transmitter requirements of
RF. The objective of the false and OOB emission requirements is to limit the interference caused by the transmitter (UE or BS) outside its respective bandwidths to the adjacent carriers or bands. In fact, all wireless communication standards (eg GSM, UTRAN, E-UTRAN, WLAN, etc.). clearly specify the OOB and false emission requirements to limit or minimize at least unwanted emissions. These are mainly approved and established by national and international regulatory bodies (for example, ITU-R, FCC, ARIB, ETSI etc.).
The main unwanted emission requirements, which are typically specified by standardization bodies and eventually applied by regulators in different countries or regions for both EU and base stations comprise:
- Adjacent Channel Leakage Ratio (ACLR)
- Spectrum Emission Mask (SEM)
- False emissions
- unwanted in-band emissions
The specific definition and specified level of
<img file="MX343394B_D0020.tif" />
MEXICAN INSTITUTE ps THE INDUSTRIAL PROPERTY
<img file="MX343394B_D0021.tif" />
These requirements may vary from “~ * Yes'S'Eema to another. Typically these requirements ensure that emission levels outside of an operating bandwidth or band in some cases remain several tens of dB below compared to the desired signal in the operating bandwidth. Although OOB and the false emission level tend to drop dramatically further away from an operating band it is not completely eliminated at least on the adjacent carrier frequencies.
The main RF receiver requirements, which are typically specified by standardization bodies and in some cases applied by regulators in different countries and regions for both EU and base stations include:
- Receiver sensitivity
- Adjacent Channel Selectivity (ACS)
- Channel selectivity
- False emissions
- Blocking: in band, out of band, narrow band, etc.
- Performance Metrics for Receiver RF Characteristics in 3GPP
In LTE, an LMU node is a radio network node that receives SRS transmitted in UL by UE and performs UL RTOA measurements on received signals for UTDOA positioning. To ensure proper RF performance of .M Jr 1 receivers
MEXICAN INSTITUTE F ^ * ¿s3gS DE LA PROPIEDAD O »« -_ JgL INDUSTRIAL ^ -Κ<sup>13</sup>· From LMU, the corresponding receiver requirements and test cases have been developed and specified. The characteristic of the receiver under test is then verified based on the comparison of the performance achieved with a reference metric for each requirement.
In LTE, there are currently no RF requirements for LMU or for LTE UL positioning in general.
GSM
In RF requirements for GSM base stations [3GPP TS 45.005, vl0.6.0], the frame loss index (FER; defined as the ratio of deleted frames to the sampled frames), bit error rate (BER; defined such as the ratio of bits received wrong to all bits received), or residual bit error rate (RBER; defined as the ratio of erroneously received bits to all bits after frame drop) are used as performance metrics in the relevant receiver RF requirements.
The same performance metrics are also used for LMU receivers which perform TOA measurements on UL traffic channels.
UTRA
In RF requirements for radio base stations
<img file="MX343394B_D0022.tif" />
<img file="MX343394B_D0023.tif" />
UTRA [3GPP TS 25.104, vlO.7.0] and UTRA LMU [3GPP TS 25.111, fel. 0.0], the performance metric typically the Bit Error Ratio (BER). According to the requirements, the BER should not exceed a specific value that corresponds to the RF receiver characteristic under test, for example 0.001.
In UTRA, using the BER metric in RF requirements for UL positioning is reasonable because measurements are performed on a data channel (12.2 kbps, eg voice, the reference measurement channel is used in requirements).
LTE
In RF receiver evaluations for radio base stations in LTE, a common reference performance metric is the maximum performance for a specified reference measurement channel. In an example of typical receiver RF requirement, at least X% (eg 95%) of the maximum performance of the reference measurement channel could be achieved under specific conditions that correspond to the characteristics of the RF receiver under test.
The production metric, which is used for LTE BS, is not relevant for LTE LMUs because LTE UL positioning measurements are performed on pilot signals (more precisely, on SRS) which does not comprise any layer information higher and so cannot be characterized by a metric
MEXICAN INSTITUTE OF THE INDUSTRIAL INSTITUTE
<img file="MX343394B_D0024.tif" />
of production.
Positioning
Because some modalities also apply to positioning, the relevant antecedent for positioning is also provided. The ability to determine the position of a mobile device has allowed the application and wireless network operators to develop to provide location-based services and location announcements. Examples of these are guidance systems, shopping assistance, friend finders, presence services, community and communication services, and other information services that give a mobile user information about their environment.
In addition to commercial services, governments in various countries have placed requirements on network operators to be able to determine the position of an emergency call. For example, government requirements in the United States (FCC E911) define that it must be possible to determine the position of a certain percentage of all emergency calls. The requirements make no difference between indoor and outdoor environments.
In various environments, position can be accurately estimated using positioning methods based on Global Positioning Systems (GPS). However, GPS based positioning can often have performance
<img file="MX343394B_D0025.tif" />
FROM INDUi'raiAL PROPERTY unsatisfactory (for example, in urban and / or interior settings). Complementary positioning methods could thus be provided over a wireless network. In addition to the EU-based GNSS (which includes GPS), the following methods are available in the LTE standard for both the control plane and the user plane, • Cell ID (CID) - a basic positioning method that exploits one or more cell IDs, • E-CID, which includes network-based AoA - these methods, which include AECID, exploit various measurements, DL and / or UL, such as UE Rx-Tx time difference, time difference eNodeB Rx-Tx, LTE RSRP or RSRQ, HSPA CPICH, AoA measurements, etc. to determine the UE position, • A-GNSS (which includes A-GPS) - methods that exploit time measurements formed on satellite signals, • Observed Time Difference of Arrival (OTDOA) - is a method that uses measurements of time (eg RSTD on LTE) performed by the UE on DL radio signals transmitted, eg, by different eNodeBs, to determine the UE position, • UL Arrival Time Difference (UTDOA) is currently being standardized - it is a method that uses time measurements (for example, UL RTOA on LTE) performed, for example, by eNodeB or LMU, on UL radio signals transmitted by a EU to determine the EU position.
IMPI <sup>, Νϊ</sup>ΤΓΤυτθ MEXICAN
I HEARD THE PROPERTY AND INDUSTRIAL
LTE positioning architecture
The three key network elements in an LTE positioning architecture are the LCS Client, the LCS Target, and the LCS Server. The LCS Server is a physical or logical entity that manages the positioning of a target LCS device by collecting measurements and other location information, assisting the terminal in measurements when necessary, and estimating the location of the LCS target. An LCS Client is a software and / or hardware entity that interacts with the LCS Server for the purpose of obtaining location information for one or more LCS targets, that is, the entities being positioned. LCS Clients can reside on a network node, external node, PSAP, UE, radio base station, etc., and can also reside on the LCS targets themselves. An LCS Client (for example, an external LCS Client) submits a request to the LCS Server (for example, positioning node) to obtain location information, and the LCS Server processes and serves the received requests and sends the result positioning and optionally a speed estimate to the LCS Client.
The calculation of the position can be conducted, for
<img file="MX343394B_D0026.tif" />
<img file="MX343394B_D0027.tif" />
example, by a tpOT positioning server — gj-eiupi'O'E ** 3 MLC or SLP on LTE) or UE. The last one corresponds to the UE based positioning node, while the previous one can be a network based positioning (calculation in a network node 5 based on measurements collected from network nodes such as LMU or eNodeB), UE assisted positioning (the calculation is on a positioning network node based on measurements received from a UE), assisted by LMU (the calculation is on a positioning network node based on measurements received from the LMUs), etc.
Figure 1 illustrates the UTDOA architecture that is currently discussed in 3GPP. The technique shown here can be practiced in connection with the architecture shown in Figure 1 and, optionally, for 25 LMU receiver configurations as shown in Figures 2 and 3.
As illustrated in Figure 2, an exemplary receiver 200 comprises an LNA 202, followed by a filter 204 and a mixer 206 that also receives a signal from a first oscillator 208. A SAW filter 20 is provided downstream of mixer 206 followed by an amplifier 212. Amplifier 212 is followed by an additional mixer 214 that receives an additional signal from a second local oscillator 216. Downstream of mixer 214 another filter 218 is provided as well as an ADC 220.
The receiver 300 of Figure 3 comprises an RF filter 302 25 followed by a frequency conversion stage 304 and a
<img file="MX343394B_D0028.tif" />
Intermediate Frequency (IF) filter. Corrien <
the filter
306 From IF an ADC 308 is provided as well as a digital bass converter 310. The digital bass converter 310 is followed by a DSP 312 to set up a measurement report. The measurement report can be generated by DSP 312 that responds to a measurement request. That measurement request can be received from a test equipment node (not shown in Figure 3). Based on the measurement reports generated by DSP 312, the RF performance metric estimates discussed herein can be generated by the test equipment node.
Although UL measurements can initially be performed by any radio network node (eg eNodeB), the UL positioning architecture may include specific UL measurement units (eg LMs) which for example can be logical and / or physical nodes, they can be integrated with radio base stations or share some of the software or hardware equipment with radio base stations or they can be completely independent nodes with their own equipment (which includes antennas). The architecture has not been finalized yet but there may be communication protocols between the LMU node and positioning and there may be some improvements for LPPa or similar protocols to support UL positioning. A new interface, SLm, between the E-SMLC and LMU is being standardized for uplink positioning. The interface is terminated between a positioning server (E-SMLC)
<img file="MX343394B_D0029.tif" />
<img file="MX343394B_D0030.tif" />
MEXICAN INSTITUTE
D £ THE PROPERTY
INDUSTRY.!·
<img file="MX343394B_D0031.tif" />
and LMU. It is used to transport messages from the Hp st mA-o— protocol (new protocol specified for UL positioning) through the E-SMLC interface to LMU. Various LMU deployment options are possible. For example, an LMU can be a separate physical node, can be integrated within the eNodeB, or can be shared in at least part of the equipment such as antennas with the eNodeB - these other options are illustrated in Figure 1.
LPPa is a protocol between eNodeB and LCS Server specified only for the control plane positioning procedure, although it can still assist user plane positioning by requesting eNodeBs for eNodeB measurements and information. LPPa can be used for DL positioning and UL positioning.
In LTE, the measurements of UTDOA, UL RTOA, are made in Polling Reference Signals (SRS). To detect an SRS signal, LMU needs a number of SRS parameters to generate the SRS sequence which will be correlated with the received signals. The SRS parameters used to generate the SRS sequence and determine when SRS transmissions occur can be provided in the assist data transmitted by the positioning node to LMU; This attendance data could be provided through SLmAP. However, these parameters may generally not be known by the positioning node, which then needs to obtain this information from the eNodeB that configures the SRS to
<img file="MX343394B_D0032.tif" />
<img file="MX343394B_D0033.tif" />
INDUSTRIAL be transmitted by the EU and measured by LMU; esfrS '^ TíTorma'ción may have to be provided in LPPa by eNodeB to E-SMLC.
It has been found that there are currently limited means in the standard to support the exchange of RF configuration information and therefore there are no methods to use this information. This is also due to the fact that receiver RF architectures have recently been totally hardware dependent and do not allow flexibility or call for the need to support the flexibility of the RF receiver. Also, there is no requirement between different modalities in an eNB other than the diversity of Rx, UL MIMO. In addition, there is no flexibility of use of receiver characteristics.
This leads to some drawbacks. There are currently no methods to monitor or test receiver performance by UL positioning measurements, especially when the receiving node is not a radio base station or when measurements are made on physical radio signals that do not contain any layer information. higher (unlike, for example, data channels). Furthermore, there are currently no methods to adapt receiver RF configuration for positioning measurements. Currently there are no methods to adapt receiver RF configuration interactively with another node. In the prior art, noise estimation or noise estimation plus total interference by LMUs is not performed,
<img file="MX343394B_D0034.tif" />
nor are they used for RF ~ 'dé' récTi'pLUi configuration adaptation. - Currently there are no signaling means for exchanging RF configuration information between two nodes.
In a general aspect, these drawbacks are solved by a radio network node, which has one or more RF receivers to receive signals according to a wireless communication standard. The node provides its RF receiver capabilities in a message comprising RF type information.
In a variant, the node adapts its RF receiver capabilities based on a received message comprising RF type information.
The capabilities of the RF receiver can be determined by an RF receiver configuration that has certain RF characteristics.
The RF type information in the message sent by the node may report a current RF receiver configuration with current RF characteristics or possible RF receiver configurations with the margin of RF characteristics.
The node can provide the reported RF type information either without requesting or after receiving a request to report it.
The RF type information in the received message can control the current RF receiver configuration either
<img file="MX343394B_D0035.tif" />
MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY specifying the RF receiver configuration to be established or the performance targets for the RF characteristics of the current RF receiver configuration.
The node can issue a request asking for the control RF type information.
The above aspects can be used in various modalities, which can be implemented as independent modalities or combined in different ways. Some exemplary modalities are as follows:
• Methods at a first node to obtain and use receiver type RF information.
• Methods for adapting the receiver RF type of the measurement node (not limited to positioning) based on interaction with the first node.
• Methods for adapting the RF type of the measurement node receiver for positioning.
• Methods for estimating RF performance for positioning and / or time measurements.
The above modalities can also be used in different combinations with each other.
The above methods do not require a certain architecture and / or type of deployment of the measurement node (for example, co-establishment, co-location, integrated / shared / independent LMU, etc.), although in some modalities the architecture specifications or unfold
<img file="MX343394B_D0036.tif" />
MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY
<img file="MX343394B_D0037.tif" />
they can be exploited for additional performance benefits.
At least one or more of the following advantages or other advantages are envisaged:
• New signaling means for exchanging RF configuration information, not limited to positioning • Allow adaptive RF configuration for positioning, valid for all measurement nodes • The solution is transparent in architecture and facilitates the behavior of self-adapting nodes For example, with autonomous RF configuration adaptation.
Solution 1: Methods in a First Node to Obtain and Use Receiver RF Type Information Associated with the Second Node
Modality, or solution 1, can be a standalone solution or can be combined with one or more of the other solutions described herein. Furthermore, even in some examples, Solution 1 modes are combined with Mode, or Solution 2, these Solution 1 modes can also be used with any radio node with the ability to adaptively configure its RF type to receiver, that is, not necessarily limited to the positioning purpose; adaptation in this case can be done
<img file="MX343394B_D0038.tif" />
according to the generalized modalities (without restricting the positioning purpose) of solution 2. The adaptive configuration can follow a predefined rule, in some modalities.
In accordance with a basic embodiment of this part of the present description, a first node obtains the information about the receiver RF type from a second node and uses it for one or more radio nodes and / or network management tasks. radio. In a specific example, the radio network management task is associated with general positioning or a specific positioning method (for example, UTDOA or UL positioning; OTDOA or DL positioning) or service (for example, emergency positioning , high data index service) or a specific radio node type (for example, LMU or eNodeB).
Some examples of radio node and radio network management tasks are:
• Configure one or more radio measurements (eg, UL RTOA positioning measurements, mobility measurements, RF measurements, etc.). to be performed by the second node, where, in one example, one or more measurement configuration parameters may be adaptively selected to the type of RF receiver,
<img file="MX343394B_D0039.tif" />
<img file="MX343394B_D0040.tif" />
• Select one or more of the <sub>t</sub> rZ perform radio measurements, for example, • select and / or configure for measurements a set of cooperating / assisting LMUs to perform UL positioning measurements for one or more target wireless devices, or select a set of radio nodes to CoMP, or select a set of transmit / receive antennas in a DAS, selecting a set of RRUs or RRHs, (Re) select the positioning method (for example, select a different positioning method for a target wireless device when the RF type of the available receivers comprised in one or more of the second nodes does not meet a certain criterion of a requirement),
RRM and mobility (eg adapt a power control configuration or cell select / reselect parameters for a wireless device adaptively to the second node receiver RF type), interference coordination (eg control transmissions of interference from other radio nodes to allow or facilitate the measurement at the receiver of the second node, so
<img file="MX343394B_D0041.tif" />
ΙΜΡΙ adaptable to the RF type of receivers-of the second node) <sub>r</sub> performance test and performance verification of the second node (for example, a set of specific pre-defined rules or requirements to be verified can be selected adaptively to the type of receiver RF or a set of predefined network environment conditions that are configured adaptively to receiver RF type), collect network or node performance statistics in a database,
- MDT, SON, or O&M,
Configure radio equipment of the first node adaptable to the RF type of receiver of the second node (for example, when the equipment is shared by the first and second node or the second node is integrated into the first node)
Request or indicate the need for the (re) configuration of the radio equipment of the second
<td>node or indicate a</td><td>objective</td><td>performance</td><td>RF</td>
<td>wanted</td><td></td><td></td><td></td>
<td>• The indication</td><td>too</td><td>can understand</td><td>a</td>
<td>setting</td><td colspan="2">requested specifically or</td><td>a</td>
indication of a rule or condition based on which the configuration can be selected • The measurement node can also be (implicit
<img file="MX343394B_D0042.tif" />
or explicitly) requested to redo the measurements with the new receiver RF type or perform a certain measurement with the new receiver type • The second node may be asked to change the receiver RF type after a certain time or event, for a period of time, for a specific service only, to serve specific wireless devices, for a specific measurement, or measurement type • According to some modalities of the solution and these generalized modalities of solution 2, the adaptation of the receiver RF type to the second node can be done interactively with the first adaptation node can also follow a predefined rule or stages or You can select from predefined settings during adaptation; the interaction can be in the form of an instruction or a recommendation from the first node, which can also be organized in a closed or open-loop procedure, that is, with or without feedback comprising RF configuration and / or information related to RF performance from the second node.
ftE THE INDUSTRIAL IROflWAD
In this way, not only can the second node adapt its configuration, but also the first node adapts it or participates in the adaptation;
• Sorting the second node to perform additional measurement or redo one or more measurements with a certain type of receiver RF by, for example, comparing the measurement with a normal case if the result shows some unexpected behavior and / or worse than the desired performance /expected.
• Transmitter programming configuration of one or more of: the second node, the first node, or a third radio node (for example, some RF configurations may allow more efficient frequency hopping or frequency diversity), • Configuration programming receiver of one or more of: the second node, the first node, or a third radio node (for example, some RF configurations may allow more efficient frequency hopping or frequency diversity), • Control of power or energy consumption between the first node.
<img file="MX343394B_D0043.tif" />
The second node is a rT / vn Aihiiih_ node of the second node are an LMU, an eNodeB, a wireless device, or a radio node that performs general positioning measurements.
Some examples of the first node are a network node (for example, O&M, positioning node, SON node, eNodeB, a control node or a gate, etc.) or test equipment or any other wireless device.
The first node may obtain the second receiver RF type information from the second node eg by • receiving signalized information from the second node, eg • lower layer signaling (eg dedicated or shared control channel, channel broadcast / multicast) • higher layer signaling (eg RRC, X2, LPP, LPPa protocols, SLm-AP) • combining lower layer signaling and upper layer signaling • discovering the configuration used by the second node autonomously, • receiving through a third node (for example, through a coordination node, positioning node, O&M, SON node, etc.), • Acquire the receiver RF type from a
<img file="MX343394B_D0044.tif" />
IMSTITI ΓΓΟ MEXICANO DE LA MONEDAD INDUSTRIAL
<img file="MX343394B_D0045.tif" />
data or a readable medium pOT'computadora.
Receiver RF type information from the second node may be received by the first node from the other node upon request from a first node or in an unsolicited manner, eg, after a second node activation condition or event or periodically. Some examples of activation condition or case in the second node may be a change of the receiver RF type (and thus associated with the conditions / events that can trigger the receiver RF type change - see solution 2), going back to the receiver after a period of activity, accessing the radio network or connecting it to a cell, which enters or leaves a geographic area (for example, a building or a vehicle) or predefined logic (for example, a cell, a tracking area, a synchronization area, a local area, etc.), receive a predefined message by another node, after determining a certain environment or interference conditions (for example, based on baseband or RF measurements) .
The receiver RF type can be declared by the second node, it can be statically preconfigured on the second node or associated with hardware, or it can be semi-statically or dynamically configured (see eg solution 2). In a specific example, the first node and the second node can be integrated into each other (for example, LMU is integrated into eNodeB), it can share part of the equipment (for example, a radio antenna), and / or it can communicate to go-.<sup>1</sup>^ titmffa'Tñterfaz
<img file="MX343394B_D0046.tif" />
ri MEXICAN INSTITUTE <sup>N</sup> OF THE «OFFICE <sup>Dt</sup> INDUSTRIAL
<img file="MX343394B_D0047.tif" />
own. The receiver RF type of the second node can thus be obtained by the first node through cross-layer communication or through its own interface.
The type of receiver RF configured on the second node can be determined by, depending on, or associated with one or more of the conditions:
• Multi-carrier ir support or configuration, • AC support or configuration (for example, intra-band, inter-band, band combination for CA, bandwidth combination for CA, RAT combination for CA, etc.), • RAT support (for example, a specific RAT, single RAT, multiple RAT, multimode support, multi-standard radio (MSR), etc.), • Frequency, frequency range and frequency band support, as well as their combinations, including contiguous or non-contiguous operational spectra, • Type of network deployment (for example, homogeneous or heterogeneous deployments comprising deployments of one or more classes of radio network nodes respectively; multi-antenna deployments, CoMP, or deployments with / no DAS, RRH, RRU, deployments comprising radio network nodes of a certain type eg relays, HeNB, CSG HeNBs, repeaters, peak BS;
<img file="MX343394B_D0048.tif" />
• Measurement node deployment type, for example
<img file="MX343394B_D0049.tif" />
etc.), if • the measurement node is integrated with the physical radio signals of the receiving node for measurements via a radio interface, • the measurement node shares radio equipment with the node that receives the physical radio signals , • the measurement node connects to one or more radio nodes that receive the physical radio signals, • the measurement node is equipped with a receive and / or transmit antenna, • the measurement node is co-established , co-locates or with a certain distance from another radio network node, etc.
• association (which can be static or dynamic) of the measurement node (LMU) with another radio node (for example, eNodeB) or an area, for example, or the association can be requested or decided by another node or selected autonomous by the LMU or follow a predefined rule (eg distance based, radio spread, iMPI loss
MEXICAN INSTITUTE
OF industrial property
<img file="MX343394B_D0050.tif" />
trajectory, force of., itrWcT<sup>1</sup> TT quality, etc.), either the other node may be informed that the measurement node is now associated with another node, or the association may be decided by recognition between the measurement node and another node.
• type of radio environment (eg indoor / outdoor, urban / suburban / rural, with / without abundant multipath), • type of receiver with respect to its ability to handle interference in a certain way or at a certain level of interference (eg, interference suppression, interference cancellation, etc.), • type of service or type of measurement.
• Duplex mode or duplex configuration, for example, FDD, TDD, Half Duplex FDD, Dynamic TDD, etc.
• Power and energy consumption level (for example, receiver power consumption class or general profile or for a specific element for example DSP, power consumption restrictions, remaining battery level, etc.) • Bandwidth of receiver RF channel or bandwidth (available, required, supported,
<img file="MX343394B_D0051.tif" />
MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY
<img file="MX343394B_D0052.tif" />
or configured, etc.)
The above conditions can also be used to adaptively configure the receiver RF type (see more modalities in solution 2).
Solution 2: Methods to Adapt Receiver RF Type for Positioning
This solution can be a standalone modality or can be combined with other solutions described herein.
In accordance with a basic embodiment in this part of the present description, a measurement node (for example, eNodeB, LMU, or a wireless device) adapts at least its type of receiver RF (for example, one or more of the parameters RF configuration - see for example the terminology definition at the end of this description) to perform positioning measurements. The adaptation can be in a static, semi-static or dynamic way. In some embodiments, the measurement node can also adapt its transmitter RF configuration, for example, when the measurement node is also capable of transmitting radio signals, and especially when it is capable of simultaneously receiving and transmitting radio signals. Some examples of positioning measurements are: TOA, TDOA, RTT, UL RTOA, RSTD, UE Rx-Tx, eNodeB Rx-Tx, Time Advance, one-way propagation delay, etc., where positioning measurements can be the UL measurements,
IMPI OdA
MEXICAN INSTITUTE
OF THE HCNEDAD
INDUSTRIAL DL measurements, or both (eg RTT, UE Rx-Tx, eNodeB
Rx-Tx, and Time Advance both have both DL and UL components.)
Adaptation can be triggered at the measurement node in different ways, for example by one or more of:
• a positioning or positioning measurement request received by the measurement node from another node (for example, from a positioning node, O&M, SON, MDT, eNodeB, etc.),
- the received request may comprise an explicit request to adapt the receiver RF type (for example, the measurement may be explicitly requested to adapt its receiver RF type; the request may also indicate a receiver RF type or a condition may being met by the receiver or a rule can be used to adapt the receiver RF type or a target value of the receiver RF metric; the second node may also indicate a failure to adapt its receiver RF type upon such request) or an implicit request (for example, upon receiving a request associated with positioning the measurement node may attempt to adapt its receiver RF type)
- when the target RF performance is not met,
<img file="MX343394B_D0053.tif" />
IMPI tiMC.TtTUTO Μ EX ICAN 0 DE LA PELOFTEDAD industrial
<img file="MX343394B_D0054.tif" />
the receiver node (also known as the measurement node) may also report a failure or any indication that a certain target RF performance is not or cannot be met; The reason for this (for example, software or hardware limitation or failure, general memory limitation or for a certain component in the RF configuration chain, power or energy restrictions, etc.) may also be indicated.
• an activation condition or event, for example,
- any of the conditions listed above for solution 1, for example, when the measurement node is requested to perform a measurement on a certain frequency or band or with a certain measurement configuration (eg AC or inter-RAT ), the type of receiver RF to be used for measurement can be determined adaptively to this condition
- a timer and / or a counter are above or below a certain level
- a radio measurement made by the measurement node is checked against a condition, adaptation is activated if the comparison gives a first result, and otherwise adaptation
IMPH mfxicano institute r tNO'JSTíllAL
<img file="MX343394B_D0055.tif" />
not activated
- a certain 'of *' Interference condition has been determined by the measurement node or indicated for the measurement node, for example, or the estimated interference may be one or more or may be derived from one or more of: baseband measurements and / or RF measurements a certain type of radio environment has been determined by the measurement node (for example, LMU can perform DL measurements for a cell or UL interference measurements to determine the proximity of a macrocell and / or a wireless device) or indicating to the measurement node environment recognition of a previously experienced environment (eg based on historical data, cell IDs, measurements, etc.), eg or the result of previous adaptation can be stored and reused after recognition of the same or similar environment
- the performance of the second node is above or below a threshold (for example, if the performance is above a threshold, then one more receiver RF type
<img file="MX343394B_D0056.tif" />
Relaxed can be selected which consume less power and resources; if the performance is below a threshold then a more demanding receiver RF type can be selected with which it can nevertheless lead to higher resource consumption; see also solution 3)
- RF performance falls below a first threshold (eg worse than acceptable) or exceeds a second threshold (eg very good and thus resource savings can be considered) (see also solution 3), for example, or for an area, for one or more radio nodes, for one or more services or measurement types, over a period of time, etc.
- Measurement performance (for example, measurement quality, measurement time, measurement accuracy) is below or above a threshold, for example, or For one or more measurements, one or more wireless devices, one or more radio nodes in the area, over a period of time, etc.
- Service performance (for example, quality of
<img file="MX343394B_D0057.tif" />
mexican institute
OF THE FS.CF'IZ.'jAf) industrial
<img file="MX343394B_D0058.tif" />
voice, connection quality, positioning result precision, etc.) is below or above a threshold, for example, or For an area, for one or more radio nodes, over a period of time, etc.
The adaptation of the receiver RF type may comprise, for example, selecting a receiver RF type from a set of possible receiver RF types and configuring the receiver accordingly. The configured receiver can then be used to perform the positioning measurements. The node can also point the selected receiver RF type to another node (for example, to the positioning node, eNodeB, O&M, SON, a nearby radio node, test equipment, etc. - see, for example, solution 1 for more examples).
The adaptation can be carried out independently by the measurement node or with the help of or interaction with another node.
The adaptation can be one or more receivers (for example, when a node has multiple receivers), for one or more specific services, for one or more specific measurements or measurement types, for a certain period of time, for a certain frequency ( carrier, DC, frequency band or its part, etc.), a certain time and / or frequency occasions (eg, described by time / frequency pattern).
<img file="MX343394B_D0059.tif" />
<img file="MX343394B_D0060.tif" />
There may be a certain minimum time (for example, predefined) or transition time allowed between using the receiver with a previous RF configuration and the adapted RF configuration.
After a change in the receiver RF configuration, there may be an event that triggers another action on a radio node, for example, • Indicate to another node that the RF type has changed and / or store such indication in a database. Local data (for example, with one or more additional information: a timestamp, one or more measurements, reason, new configuration, etc.) • point the RF configuration information (and possibly also the indication of the reason for the change) to another node (eg, positioning node, MDT, SON, O&M, eNodeB, etc.) • select or adapt the receiver algorithm to handle the interference (for example, using interference cancellation or interference suppression or neither), • acquire (for example, from a database or memory) and apply the acquired measurement settings to perform one or more measurements, in response to changing the RF type • restart one or more measurements.
ΪΜΡΙ
<img file="MX343394B_D0061.tif" />
To facilitate measurement performance, the receiver may also receive search window information (for example, expected delay propagation and delay uncertainty), for example, in the UL Positioning Assist data from E-SMLC or as attendance data from another network node. The search window can also be obtained autonomously by the measurement node. The search window (for example, availability of this information in the attendance data, the configuration of the search window versus the configuration of a reference search window) can be justified by the measurement node when adapting the RF type of receiver.
Other continuous measurement configuration parameters can also be justified for the measurement node when matching the receiver RF type, for example; number of continuous or requested measurements, target quality of measurements performed or requested (eg, non-target; i.e., best effort, or a specific minimum precision target or maximum measurement time target).
Solution 3: RF Performance Estimation Methods for a
Receiver Used for Positioning Measurements or
Time Measurements
This solution can be an independent modality or it can be combined with other solutions described in sections
<img file="MX343394B_D0062.tif" />
According to a form báRÍ-f! A-da..ftsta> paxtp. from previous ones.
IMPltoy
INSTITUTO MÍXICANO t> t LA HÜWÍOAP IWIaJLTüíaL the present description, the receiver RF performance is estimated for the receiver used for positioning measurements and / or time measurements, when the estimate comprises obtaining a metric estimate of RF performance, where the metric is tailored for positioning measurements and / or time measurements.
Positioning measurements and time measurements can be DL measurements, UL measurements, or both (for example, some measurements may have both a DL component and a UL component such as RTT). A positioning or time measurement can also be a measurement made by a wireless device based on radio signals transmitted by another wireless device.
Positioning measurement is any measurement which is configured to position and / or can be used for positioning even when originally configured for one or more purposes which are not necessarily positioning. Some examples of positioning measurements are: positioning time measurements, power based positioning measurements, AoA measurements.
Time measurements can be made for any purpose, including positioning, for example
<img file="MX343394B_D0063.tif" />
network management, RRM, radio resource optimization, proximity detection of a radio node, time synchronization or time alignment, distance or margin estimation, DTM, SON, etc. Some examples of time measurements are advanced time, RTT, one-way propagation delay, TOA, TDOA, RSTD, UL RTOA, mUE Rx-Tx, and eNodeB Rx-Tx measurement.
The RF performance metric estimate for a receiver can be obtained in different ways, for example based on one or more of:
• Acquire a predefined RF performance characterization for a specific receiver RF type • Estimate / predict based on historical data or performance statistics collected for other receivers under similar conditions • Estimate based on historical data or performance statistics collected for the receiver target for example under similar conditions and / or over a period of time • By mapping or applying a predefined rule using as input one or more network conditions which are experienced by the receiver, for example,
- Conditions can be discovered by the baseband based node or RF measurements (by
<img file="MX343394B_D0064.tif" />
IMPI
INSTITUTO MEXICANO DF LA PROPIEDAD INDUSTRIAL example, received signal strength, noise evasion due to interference, received signal to noise ratio, total interference and noise, amount of co-channel interference, amount of input band or band interference output, etc.) o In the prior art LMU performs a noise lift of UL or total interference and noise
Conditions can be explicitly indicated by another node (for example, the eNodeB with which the LMU is associated or by the positioning node) • In one example, there may be a predefined rule for making measurements used to obtain RF performance metrics and / or to obtain the RF performance metric value (eg used for relative comparison - see also below), eg
- Measurements should be made with a certain interval over a certain time
- Measurements must be made over a certain time with the request
- There may be a certain minimum time (for example, predefined) or transition time allowed between using previous RF configuration
<img file="MX343394B_D0065.tif" />
RF adapted
There may be a certain minimum time (for example, predefined) allowed between obtaining two metric RF performance estimates (for example, the receiver dwell time may be two times each of the RF performance metric estimation periods plus long)
- There may be a certain minimum time (for example, predefined) allowed between two consecutive measurements used for RF performance metric estimation (for example, the receiver rest time or the time between two test runs can be twice of each one of the longest measurement periods).
• Perform one or more test procedures for the receiver, for example in a laboratory, failure test, test network, or actual network, for example,
- Verification can be against predefined or configured RF performance metric values • Calculated as a probability of detection for a radio signal which can be used for measurement (to ensure that the present signal is determined), eg
- It can be by EU, by type of measurement, by service, by area, by environment, by RF configuration, by receiver or antenna port, over a period of time, etc.
- The probability of detection can also be a probability of correct detection or probability of erroneous detection (when the desired signal is present but another signal is determined instead). Thus, obtaining a detection probability can also comprise a verification of whether the determined signal is the correct signal (for example, having the desired signal sequence or signature).
- There may also be a defined reference / target detection probability, for example 90% or 95%.
• Calculated as a false alarm rate or a probability of false detection of a radio signal which can be used for measurement (to ensure that no signal is determined when the signal is not present), for example,
- It can be by EU, by type of measurement, by area, by environment, by service, by configuration of
RF, by receiver port or antenna, on a
<img file="MX343394B_D0066.tif" />
77 · »Τ
MEXICAN INSTITUTE OF PROPERTY (NDUtlTKl / .L
<img file="MX343394B_D0067.tif" />
time period etc.
- There may be a defined reference / target detection probability, for example le-6.
• Calculated as a statistical measurement comprising one or more values, for example, a standard deviation, median, mean, Xth percentile, CDF, PDF, a characteristic function, histogram • Based on a correlation result for radio signals used measurements • Based on relative comparison (eg degradation or improvement) to baseline performance, eg
- the reference performance can be the performance under ideal or optimized conditions, performance with a reference RF configuration, performance at a reference time, performance at a reference condition (eg SNR or SINR at a certain level), performance before an event (for example, before starting the measurement)
The estimated RF performance metric can also be used, for example, for any one or more of:
• Evaluation against a target value of the RF performance metric, where the metric value of
<img file="MX343394B_D0068.tif" />
performance RF target port sor peg preconfigured, dynamically configured according to a predefined rule, or received from another node; evaluation results can also
<img file="MX343394B_D0069.tif" />
used for any of the following, • Select a receiver RF type to perform a receiver RF adaptation (see for example Solution 2) • Configure one or more positioning and / or response time measurements to or adaptively to the RF Performance Estimate Obtained • Store in database or as historical data, for example, to obtain RF performance estimate from this and other receivers; The storage can also be together with other additional information, for example, the corresponding radio conditions, interference characterization, location of the receiver, RF type of receiver, time, etc.
• Signaling with another node (see for example solution 1 and solution 2) • Receiver power consumption or battery energy optimization,
- When the performance is greater than required (for example, above a threshold), a
<img file="MX343394B_D0070.tif" />
RF configuration of
Mexican INSTITUTE V, - <sup>, NST,</sup>¿I1MüFIEPAD vp;
INDUSTRIAL lower power consumption.
can be selected when the battery power is below a threshold, or
- When performance is less than required (for example, below a threshold), more resources can be allocated, with or without changing RF settings, or to achieve better RF performance when battery power is at above threshold • Compare the RF performance level of the measurement node with a reference performance level, where the reference performance level can be, for example,
- with another node in the same situation to exclude internal malfunction (this could be valid for all methods), for example,
- Compare the RF settings associated with the two levels of RF performance
- reference RF performance metric value
- RF performance of the same receiver or another receiver under reference conditions (eg known or predefined)
- RF performance of another receiver under the same conditions (for example, to exclude internal malfunction, this could be valid
<img file="MX343394B_D0071.tif" />
for all methods, receiver solutions and implementations); one example from another
TaopttOA mexican INSTITUTE »industrial
<img file="MX343394B_D0072.tif" />
receiver can be a receiver with different RF architecture and / or different RF adaptive behavior.
The receiver can also tailor the type of receiver RF (see solutions 1, 2, 4 described here) to meet a target RF performance level. In one modality, adaptation may further comprise obtaining and using one or more of: an adaptive detection threshold, a target / reference detection threshold (can be predefined or determined based on a predefined rule, can be autonomously decided by the receiver, received from another node, obtained by mapping to a condition, or acquired from a table or database), and a target / reference false alarm rate (can be predefined determined based on a predefined rule, can be decided autonomously by the receiver, received from another node, obtained by mapping for a condition, or acquired from a table or database).
In one modality, one RF performance metric (experience or desired / target value) can be used to reduce the value of another RF performance metric. For example, a target / reference false alarm rate can be used to determine the probability of target / reference detection or vice versa.
<img file="MX343394B_D0073.tif" />
<img file="MX343394B_D0074.tif" />
In another embodiment, a weighted function of one or more RF performance metrics can be determined to assess RF performance.
The receiver may also receive search window information (eg, expected delay propagation and delay uncertainty), eg, in the UL positioning assistance data from E-SMLC or from another network node. The search window (eg availability of this information, the search window setting versus a reference search window setting) may be justified for estimation of RF performance.
New referral channel
In yet another embodiment, a new reference channel is introduced to assess RF performance. In one example, the reference channel may be specified for a physical reference signal, for example, SRS. Such a reference channel is currently not specified in the standard.
The new reference channel can be characterized by one or more of the parameters: modulation, signal sequence, transmission / reception schedule (comprising time and / or frequency resources), signal bandwidth (for example, broadband, narrowband, part of a band comprising N resource blocks), frequency hopping configuration, C-RNTI associated with the cell serving the UE, a code of ϊ> f ϊ
X '. ) <Λ
INSTITUTO MWCMíO de la; · κ: ·. ; '·' Αγ industrial
<img file="MX343394B_D0075.tif" />
specific sequence associated with the dúffíi / ññP ti<sup>TT</sup>: * h * l muiί Γ I / 77 from which the reference signal is obtained, duplex configuration, AC configuration (PCell and SCell configuration, activation status of at least one service cell), power control parameters ( for example, equal to or different from PUSCH or PUCCH power control, power control compensation), EARFCN, UL cyclic prefix, UL system bandwidth of a cell, SRS bandwidth setting of a specific cell srs-BandwidthConfig [36.211, vil.0.0], specific EU SRS bandwidth setting srs-Bandwidth [36.211, vil.0.0], number of antenna ports for transmission from SRS srs-AntennaPort of [36,211 vil.0.0], number of receiver antenna ports, position of SRS frequency domain [36.211, vil.0.0], SRS frequency hopping bandwidth setting [36.211, Fel.0.0], SRS Cyclic offset [36.211, vil.0.0], SRS transmission comb [36.211, vil.0.0], SRS configuration index [36.213, vlO.7.0], MaxUpPt which is used for TDD only [36.211, v .11.0.0], indication of whether group jump enabled [36.211, vil.0.0], del-taSS parameter [36.211, vil.0.0, 5.5.1.3] (included when SRS sequence jump is used [36.211 , vil.0.0, 5.5.1.4] and not otherwise included).
The reference channel configuration may also comprise simultaneous transmissions of the reference signal
INOUSlT.fÁl
<img file="MX343394B_D0076.tif" />
with other specific signals / channels / transmissions same transmission node (eg PUSCH, PUCCH, CQI feedback, etc.).
Solution 4: Compliance with requirements and testing
Compliance with predefined requirements.
According to some, a measurement node can adapt its receiver RF type to meet certain predefined requirements, it can adapt the transmission node configuration to meet certain predefined requirements and / or a network node (for example, positioning node ), you can attend (for example, ensure configurations meet node capabilities) in tailoring receiver RF type to meet certain predefined requirements (for example, reference RF performance or predefined RF performance level under certain conditions or in a certain environment radio). For adaptation, any or a combination of the modalities described for solutions 1-3 can also be used.
Compliance with tests
The methods described in the present description, for example, the method for obtaining the RF configuration information, methods for adapting the RF type of the receiver, and methods for meeting a predefined requirement (for example, a
<img file="MX343394B_D0077.tif" />
<img file="MX343394B_D0078.tif" />
certain level of RF performance can also be configured
IA i '^<sup>s</sup>~ rTuTo <ND<sub>UST</sub>f * D at the Test Equipment (TE) node (also known as System Simulator (SS) or Test System (TS)). The TE or SS will have to implement all the configuration methods related to the modalities applicable to different nodes, for example, wireless device, radio service node, positioning node, measurement radio nodes (for example, independent LMU) to verify Predefined requirements and procedures described in the previous sections.
The purpose of the test is to verify that the radio nodes, measurement nodes, wireless device, positioning node, etc. comply with predefined rules, protocols, signaling, and requirements associated with obtaining and using RF configuration information and / or adaptation of the RF type of receiver.
Typically, the TE or SS or TS separately tests for UEs and radio network nodes. There may also be separate tests for LMUs.
The tests may be measurement specific and may be capacity dependent, eg LMU provides (declares) one or a set of supported bandwidths and / or their combinations. For example, requirements described in the preceding section can be verified with such a TE or SS.
For measurement node tests (eg LMU or eNodeB), the TE or SS will also be able to:
<img file="MX343394B_D0079.tif" />
<img file="MX343394B_D0080.tif" />
<img file="MX343394B_D0081.tif" />
• Receive the measurement results from the measurement node, • Analyze the results received eg comparing the measurement result or the statistics of the measurement results (eg with 90% confidence) obtained in the test with the results reference to determine if the measuring device meets the requirements or not. The reference can be based on the predefined requirements or behavior of the measurement node or theoretical estimates or performed by a reference device. The reference device can be part of the TE or SS.
Figure 4 provides an exemplary node 400 of the radio network (eg, of Figure 1). Node 400 has one or more RF receivers 410. Each RF receiver 410 can be configured as shown in Figures 2 and 3 and can have an RF configuration. Node 400 further has an RF receiver configuration controller 420 that controls the RF receiver configuration. This can be either by setting an RF configuration or by setting an RF characteristic to adhere to. Said controller 420 can report current RF configurations and RF characteristics by means of RF type information reports. Controller 420 can do this based on internal triggers, like an alarm
<img file="MX343394B_D0082.tif" />
<img file="MX343394B_D0083.tif" />
which will be issued by one of the '-4 receivers<sup>,</sup>10’<sup>l,</sup>dt; '<sup>,</sup>'P. ^<sup>l</sup>dt 'that the RF receiver no longer adheres to the feature set.
Controller 420 may also report based on a received request.
Controller 420 can also receive control of RF type information. Controller 420 may invoke or request this or such is received without request. Controller 420 uses the received RF type information to control the RF characteristics of RF receivers 410.
Figure 5 illustrates an embodiment of a receiver performance management system 500 comprising one or more of the measurement nodes 510 and one or more of the test equipment nodes 520.
Measurement node 510 can be performed as an LMU and can be deployed in a network environment as generally illustrated in Figure 1. Measurement node 510 comprises an RF receiver 530 as well as an antenna port 540 coupled to the receiver 530 of RF. In some embodiments, the measurement node 510 may comprise multiple RF receivers 530, where for each RF receiver 530 a dedicated antenna port 540 is provided. Measurement node 510 may in one implementation be performed as illustrated in Figure 4 (i.e., may comprise an RF receiver configuration controller 504 for processing type-of-information
RF).
MEXICAN INSTITUTE
Give NtOFIÍDAD
INDUSTRIAL
Each RF receiver 530 of the measurement node 510 may have a receiver configuration as shown in Figure or Figure 3. In particular, the RF receiver 530 may comprise
DSP (reference number 312 in Figure 3) to receive measurement requests and generate measurement reports.
Test equipment node 520 comprises an RF performance metric estimator 550. Estimator 550 is configured to send measurement requests to RF receiver 530 and to receive corresponding measurement reports. In addition, the performance metric estimator 550 is configured to calculate one or both of a detection probability and a false alarm rate for a radio signal sent to the RF receiver 530. The radio signal may be generated by a dedicated reference channel generator 560 coupled to the antenna port 540 of the measurement node 510. In the present embodiment, the reference channel generator 560 is illustrated to be a part of the test equipment node 520. In other embodiments, the reference channel generator 560 can be co-located with another node or can be performed at its own node.
Next, the operation of the receiver performance management system 500 illustrated in Figure 5 will be described in more detail with reference to the schematic flow diagram 600 of Figure 6. Flow diagram 600 illustrates the steps of a method embodiment that they are performed at least partially by the test equipment node 520.
<img file="MX343394B_D0084.tif" />
MEXICAN INSTITUTE, OF THE I. INDUSTRIAL X PROPERTY
As illustrated in Figure 5, first '(= fagra 602 a reference radio signal is generated by the reference channel generator 560 on a reference channel. The reference channel may have a configuration as discussed above. with reference to solution 3. In an exemplary LTE / LMU implementation, the reference radio signal may comprise the SRS. This allows efficient allocation of LMUs to LMU RTOA measurements, because LU RTOA measurements are performed on LMU SRS which do not carry any higher layer information or data channels.
Although the reference signal is generated and transmitted to the RF receiver 530, the RF metric estimator 550 repeatedly generates measurement requests and communicates those requests to the RF receiver 530 (see step 604). In response to measurement requests generated in step 604, RF performance metric estimator 550 receives associated reference reports 606 from RF receiver 530. It will be appreciated that steps 604 and 606 can be performed essentially simultaneously.
At step 608 the RF performance metric estimator 550 analyzes the statistics with respect to the generated measurement requests and the received measurement reports to calculate the RF performance metric estimate in the form of a detection probability and an index false alarm. In the exemplary LTE / LMU implementation, use the
<img file="MX343394B_D0085.tif" />
probability of detection and false alarm rate'-e-crno RF performance metric estimates based on SRS detection is more appropriate for evaluating positioning / time measurement performance than any production related metric such as production maximum for a specific reference measurement channel or BER.
The detection probability calculated in step 608 can be represented as the ratio of the received measurement reports to the total number of measurement requests. In a similar way, the false alarm rate can be calculated as the percentage of measurement reports received with the total number of measurement requests with the measurement configuration of a signal that is not present.
In a further step 610, the resulting RF performance metric estimates (i.e., probability of detection) are verified against one or more RF performance metric values. These RF performance metric values can take the form of a probability of detection requirement and a false alarm requirement, respectively (also referred to as reference results herein). As an example, the detection probability requirement can be 90%, 95%, or 99%. The false alarm requirement can be 0.01% or 0.1%.
In an optional additional step 612, the test equipment node 510 or an operator of the measurement node 510 may
Μ r 1 t
MEXICAN INSTITUTE
OF INDUSTRIAL PROPERTY
<img file="MX343394B_D0086.tif" />
(re) configure measurement node 510 hasaíin _en-it-iH ι il h'AcióiT for RF performance metric estimation. Thus, a (re) configuration may comprise changing a receiver RF characteristic, configuration, or type as set forth herein.
Figure 7 illustrates an embodiment of a network node system 700 comprising one or more metering nodes 710 and one or more additional network nodes 720. The embodiment of Figure 7 can be performed, or can be combined, with any of the other solutions 1, 2, 3 or 4 described above.
One or more measurement nodes 710 can, for example, be configured as LMUs or eNodesB. At least one additional network node 720 can be realized in the form of a core network node. Alternatively, at least one network node 720 can be realized in the form of an LMU or an eNodeB. In the latter case, at least two network nodes 710, 720 may be peers (for example, they may be located at the same hierarchical and / or functional level of network node system 700).
The measurement node 710 may in one example take the form of the exemplary node 400 illustrated in Figure 4. In addition, the network node system 700 can be configured to perform at least a portion of the receiver performance management system 500 illustrated in Figure 5. As an example, the measurement node 710, and, optionally, the network node 720 of Figure 7, each can implement the functionalities of node 510
<img file="MX343394B_D0087.tif" />
<img file="MX343394B_D0088.tif" />
ϋίΤΠΤΕΓΓΟ MEXICAN INDUSTRIAL ITCIIELAD measurement of Figure 5.
As shown in Figure 7, the measurement node 710 comprises an RF receiver 730 as well as a configuration controller 740. Those components may in some cases correspond to the RF receiver 402 and the RF receiver configuration controller 404 of FIG. 4. The measurement node 710 further comprises a transmitter interface 750 as well as a receiver interface 760. Transmitter interface 750 is configured to transmit report messages generated by configuration controller 740 to network node 720. In turn, receiver interface 760 is configured to receive control messages from network node 720 and forward them to configuration controller 740.
Configuration controller 740 couples to RF receiver 730 to adapt the current RF receiver configuration of RF receiver 730 based on control information received from network node 720. In addition, the configuration controller 740 is configured to determine a current RF receiver configuration (with one or more current RF characteristics) of the RF receiver 730. Additionally, or as an alternative, the configuration controller 740 is configured to determine possible RF configurations (with a range of one or more possible RF characteristics) with respect to the RF receiver 730. The range of one or more possible RF characteristics can be a continuous range or can be indicated in the form of one
<img file="MX343394B_D0089.tif" />
INSTITUTO MEXICANO ¿tLATROHtnAD INDUSTRIAL or more discrete values.
Network node 720 of Figure 7 comprises a processor
770 Of configuration. Configuration processor 770 is configured to analyze report information contained in the report message received from measurement node 710. Furthermore, the configuration processor 770 is configured to generate control information that will be transmitted by the control message to the measurement node 710. The generation of the control information can be based on an analysis of the reported information received from the measurement node 710.
In the following, the operation of the network node system 700 illustrated in Figure 7 will be described in more detail with reference to the schematic flow diagram 800 of Figure 8. Flow diagram 800 illustrates the steps of one method embodiment performed together by measurement node 710 and additional network node 720.
As illustrated in Figure 8, in a first step 802 the configuration controller 740 generates a report message and transmits it to network node 720. The report message includes report information pertaining to the current RF receiver configuration of the RF receiver 730. In other embodiments, the information in the report is indicative of possible RF receiver configurations of the RF receiver 730 (eg, indicated by a range of one or more possible RF characteristics). The RF characteristics that
IMPI
<img file="MX343394B_D0090.tif" />
belong to the RF receiver 7 30 can πητηρΊΤιιιΙΜ iji- · ........ jmantA .__ one or more than one receiver sensitivity, and receiver dynamic range, receiver band selectivity, channel sensitivity adjacent the receiver, a receiver block (such as in-band or out-of-band), a narrowband blocking feature, false receiver emissions, and a receiver intermodulation feature.
The report message can be transmitted at the stage
802 without request or after a dedicated request. The request can be received through the receiver interface 760 from the network node 720. When the network node 720 and the measurement node 710 are performed as pairs, the configuration controller 740 may interpret a report message received from the network node 720 as a request to transmit a report message to the network node 720.
In step 804 the report message transmitted by the measurement node 710 is received by the network node 720. As stated, the report message can be received without request or in response to a request previously transmitted by network node 720 to measurement node 710.
Then, in step 806, the network node 720 configuration processor 770 analyzes the report information contained in the report message. This analysis belongs to an identification of a need to execute a network management task. Such a network management task can
T / '-' nj i ivi ri
For example, require the configuration of one or more radio measurements (for example, time and / or positioning measurements) by the measurement node 710. In another embodiment, the network management task may be indicative of a selection or reselection of a positioning method.
In another step 808 the control information is generated by the configuration processor 770 in response to the results of the analysis in step 806. The control information generated in step 806 generally relates to a control of the RF receiver configuration. current of measurement node 710. As an example, the control information can control the current RF receiver configuration by specifying an RF receiver configuration to be set (which includes keeping the current RF receiver configuration). In another example, the control information may control the current RF receiver configuration by specifying one or more performance targets for one or more RF characteristics of the current RF receiver configuration.
In a further step 810 a control message is generated by the configuration processor 770. The control message is generated to include the control information generated in step 808. Then, also in step 810, the generated control message is transmitted to the measurement node 710.
At step 812 the control message is received by the measurement node 710 through the receiver interface 760. In a
<img file="MX343394B_D0091.tif" />
<img file="MX343394B_D0092.tif" />
In additional step 814, the configuration controller 740 analyzes the control information received in the control message and adapts the RF receiver configuration of the RF receiver 730 accordingly. Such adaptation may include setting the current RF receiver 730 RF receiver configuration in accordance with an RF receiver configuration specified by the control information, or in accordance with one or more specified performance targets. Such an adaptation may also account for one or both of an interference estimate and a derived noise estimate (eg, by configuration controller 740, for RF receiver 730.
Based on the adapted RF receiver configuration, the measurement node 710 can perform one or multiple measurements, in particular positioning and / or time measurements by the RF receiver 730. These measurements can be reported in a measurement report to another network node such as network node 720 in Figure 7. It will be appreciated that network node 720 can communicate with multiple measurement nodes 710 in connection with tailoring its RF receiver configuration and thus measurement reports can also be received from multiple measurement nodes 710.
As has become apparent from the foregoing description in some embodiments, the technique shown herein allows for radio performance control. Specifically, the technique allows remote adaptation of a *
<img file="MX343394B_D0093.tif" />
INSTITUTO MEXICANO Í> 1 LA f ROPIEDAD INDUSTRIAL RF receiver configuration using, for example, targets (including thresholds or rules) for one or more RF characteristics If those cannot be met, another RF receiver configuration can be implemented automatically ( for example, autonomously). If adequate RF receiver configuration is not available, or in other cases, this may be indicated by the report messaging described herein. In response to such report messaging, an RF receiver configuration can be established using control messaging. The corresponding report could also be implemented as a pre-warning, before specific targets, thresholds or rules are breached.
The following terminology is used in the present description.
Wireless device, mobile device and UE are used interchangeably in the description. A UE may comprise any device equipped with a radio interface and capable of generating and transmitting at least one radio signal to a radio network node. Note that even some radio network nodes, for example femto BS (also known as Home BS), LMU, eNodeB, relay, etc., can also be equipped with a UE-type interface. Some examples of UEs that should be understood in a general sense are PDA, laptop, mobile, sensor, fixed relay, mobile relay, any equipped radio network node
<img file="MX343394B_D0094.tif" />
with a UE-like interface (eg small RBS, eNodeB, femto
BS).
A radio node is characterized by its ability to transmit and / or receive radio signals and comprises a transmit and / or receive antenna. A transmitting radio node has at least one transmitting antenna, whereas a receiving radio node has at least one receiving antenna. In some special examples, a radio node may not have its own antenna but may share one or more antennas with another node. A radio node can be a UE or a radio node. Some examples of radio nodes are a radio base station (for example, eNodeB in LTE or NodeB in UTRAN), a relay, a mobile relay, a remote radio unit (RRU), remote radio head (RRH), a sensor, fake device, unit of measurement (for example, LMUs), user terminal, PDA, mobile device, iPhone, laptop, etc.
A radio network node is a radio node comprised in a radio communication network and typically characterized by its own or associated network address. For example, a mobile device on a cellular network may not have a network address, but a wireless device involved in an ad hoc network is prone to having a network address. A radio node may be capable of operating or receiving radio signals or transmitting radio signals on one or more frequencies, and may operate a single single RAT, multiple RAT, or multi-standard mode (for example a
<img file="MX343394B_D0095.tif" />
INSTITUTO MEXICANO DL -A FROFIEDAD INDUSTRIAL
<img file="MX343394B_D0096.tif" />
Exemplary dual mode user equipment can operate with any one of a combination of WiFi and LTE or HSPA and LTE / LTE-A. A radio network node that includes eNodeB, RRH, RRU, or transmit only / receive only nodes, may or may not create its own cell or may in some examples comprise a transmitter and / or a receiver and / or one or more antennas transmit or one and / or more receive antennas. You can also share a cell with another radio node where you create your own cell. More than one cell can be associated with a radio node. Additionally, one or more service cells (in DL and / or U'L) can be configured for a UE, for example, in a carrier addition system where a UE can have a Primary Cell (PCell) and one or more Cells Secondary (SCells).
A measurement node is a radio node (for example, a wireless device or radio network node) capable of making measurements on one or more of: DL radio signals, UL radio signals, and signals received from a Wireless device. Radio signals can be received through its own antenna and / or an antenna shared with one or more other nodes. In some examples, the received physical radio signals can be amplified before taking a radio measurement. Depending on the modalities, the measurement node can perform measurements on one or more of: DL signals (for example, a wireless device or a radio network node equipped with a UE-type interface, LMU, relay, etc.), UL signs (for ν ·<sup>3</sup> -·
<img file="MX343394B_D0097.tif" />
WLAN access, LMU, etc.), and signals from a wireless device. The measurement node may also have one or more interfaces (eg radio interface, fixed interface, IP interface) to communicate with other nodes, eg for report measurements and / or to receive measurement requests or data from measurement setup. The measurement node can also be equipped with a radio interface used for time synchronization, eg GNSS interface and / or a network interface for synchronizing using synchronization or pilot signals. The measurement node can also receive System Information (SI) from the radio network which can be used for measurement configuration and / or time synchronization, for example, the system information can be received by dedicated signaling or multicast signaling / diffusion; signaling can be via radio channels (eg MIB, SIB1, SIB8, physical control channels, etc.) or align high layer signs. The RF components of the measurement node can be comprised of hardware and / or software. In some examples, a measurement node may comprise a defined software radio system where one or more of the components that have typically been implemented in hardware (for example, mixers, filters, amplifiers, modulators / demodulators, detectors, etc. ) are implemented by software. Some receiver architectures that _fc. the. Il .11
PSL METHICAN INSTITUTE '»!' ;; jAD INDUSTRIAL
<img file="MX343394B_D0098.tif" />
can be understood in the measurement node shown in the
Figures 2 and 3.
The receivers 200, 300 illustrated in Figures 2 and 3 can be provided at any measurement node such as the LMUs of Figure 1. 1. In other words, the corresponding receivers can be configured to perform at least one of a positioning measurement and a measurement of time.
A network node can be any radio network node or core network node. Some non-limiting examples of a network node are an eNodeB, RNC, positioning node, MME, PSAP, SON node, MDT node, (typically but not necessarily) coordination node, and O&M node.
A positioning node as described in different modes is a node with positioning functionality. For example, for LTE it can be understood as a positioning platform in the user plane (for example, SLP in LTE) or a positioning node in the control plane (for example, E-SMLC in LTE). SLP may also consist of or comprise SLC and SPC, where SPC may also have its own interface with E-SMLC. The positioning functionality may also be divided between two or more nodes, for example, a gate node may exist between the LMUs and E-SMLC, where the gate node may be a radio base station or other network node; in this case, the term positioning node can be related to E-SMLC and the gate node. In an environment of ri <NS'íTHITO MEXICANO * ÍM> pp.O'ltD. '. D
INDUSTRIAL - «ι_ϋ— test, a positioning node can be simulated or emulated by test equipment.
The term coordination node used herein is a network and / or node, which coordinates radio resources with one or more radio nodes. Some examples of the coordination node are the network monitoring and configuration nodes, OSS node, O&M, MDT node, SON node, positioning node, MME, a gate node such as a Packet Data Network Gate (P- GW) or Service Gateway (S-GW) network node or a femto gate node, a macronode that coordinates smaller radio nodes associated with it, an eNodeB that coordinates resources with other eNodeBs, etc.
The signaling described herein is either through direct links or logical links (eg via higher layer protocols and / or via one or more radio networks and / or nodes. For example, signaling from a coordination node may pass another network node, for example a radio network node.
The modalities, which include the solutions shown herein, are not limited to LTE, but can apply with any Radio Access Network (RAN), single or multiple RAT. Some other examples of RAT are Advanced LTE, UMTS, HSPA, GSM, cdma2000, WiMAX, and WiFi.
Measurements herein may comprise measurements made on any one or more of: UL radio signals, DL radio signals, radio signals received from a
<img file="MX343394B_D0099.tif" />
<img file="MX343394B_D0100.tif" />
Wireless device. Here, the measurements may comprise DL measurements, UL measurements, measurements on radio signals received from a wireless device, or any combination thereof, for example measurements that comprise both DL and UL components (eg measurements RTT or Rx-TX). Some exemplary measurements are in TS 36.214, fel.0.0 or TS 25.215, fel.0.0. Measurements can be made in the baseband (for example, RSRP / RSRQ, time measurements, received signal quality from UL, and AoA) or in the RF part (for example, noise rise, received interference power, power received, received power spectral density, interference and total received noise). In some examples, measurements may even need to be made in relation to different radio chains.
Herein, the following terms may be used interchangeably: UL measurements used for positioning, measurements used for UL positioning, and UL positioning measurements, and comprise any radio measurements that can be performed on radio signals configured for the positioning or other purpose and where measurements are used at least for positioning. The term UL positioning in at least some embodiments may refer, for example, to UTDOA. In addition, UL positioning measurements can comprise,
<img file="MX343394B_D0101.tif" />
<img file="MX343394B_D0102.tif" />
f Βϊ .a. λ /.'pitdustkul
<img file="MX343394B_D0103.tif" />
i for example UL RTOA,
<img file="MX343394B_D0104.tif" />
any of the following: ULTOA, ULTDOA, UL AoA, measurement based on UL power (for example, received signal quality from UL or received signal strength measurement from UL or received interference power), delay in propagation of UL, or even a measurement bidirectional involving a UL measurement component (eg RTT, eNodeB Rx-Tx or UE Rx-Tx) or any general measurement involving at least one UL measurement component (eg such as a multi-link measurement or a composite measurement). When a measurement involves two links (for example, TDOA, a measurement on multiple links, RTT, etc.), the links can be between two or more nodes and / or locations (for example, three nodes can be involved with multiple links or TDOA comprising two receivers or two transmitters). The term node herein can comprise any radio node as described above.
A UL transmission or UL radio signal is generally any radio signal transmission by the wireless device, where the transmission can be dedicated or directed to a specific node (for example, eNodeB, LMU, another wireless device, relay, repeater, etc.) transmission or a multicast or a broadcast transmission transmitted by the wireless device. In some examples, a UL transmission can even be a point-to-point transmission, when the transmission is by the wireless device being positioned. Some examples of radio signals
<img file="MX343394B_D0105.tif" />
IMPI
MEXICAN INSTITUTE CE LA FROPIE'jAD INDUSTRIAL
<img file="MX343394B_D0106.tif" />
Measurable UL metrics for UL positioning measurements are reference signals transmitted by the wireless device (for example, SRS or demodulation reference signals transmitted in UL) dedicated or shared channels transmitted by the wireless device (for example, data channels , control channels, random access channels, a broadcast channel transmitted by the wireless device, etc.), or other physical signals (for example, transmitted by the wireless device to support device-to-device communication such as for proximity detection or presence / activity indication or transmitting a signal / message to the beacon.
The term receiver RF characteristics may comprise, for example, one or more of receiver sensitivity, receiver dynamic index, receiver channel selectivity, receiver adjacent channel selectivity, receiver blocking as in-band or out-of-band, narrowband blocking characteristics, false receiver emissions, receiver intermodulation characteristic, or more generally a receiver RF configuration or a set of receiver configuration parameters that characterize the receiver RF performance or the ability of the receiver to meet one or more predefined RF requirements. A receiver configured with a certain RF configuration or that
<img file="MX343394B_D0107.tif" />
<img file="MX343394B_D0108.tif" />
8 WTtTtnrO MEXICANO
OECA MOMEDAD
INDUSTRIAL has one or more of certain RF characteristics is also referred to herein as a type of receiver RF. An RF configuration can also be associated with one or more of the RF characteristics. An RF configuration can also comprise a chain of RF components or modules, which can be configured statically, semi-statically or dynamically (for example, some chains can comprise a subset of components or modules that can be used by the node ). Some examples of RF configuration parameters include jitter and jitter rate, dynamic range, thresholds associated with RF characteristics, filter type or filter configuration parameter, LNA configuration, center frequency of local oscillators, ADC bandwidth , RF bandwidth, and integration time for measurements. One or more of the sets defined for RF parameter combinations that are associated with different types of receiver RF can be stored in a database (eg filter bank, etc.). Some receiver RF configurations may also differ by: ADC location (for example, baseband, IF, or RF), analog front end bandwidth, and ADC bandwidth (for example, single or multiple channels, section frequency, service band eg GSM, frequency band or margin eg 2 GHz band; narrowband or broadband), memory configuration (eg memory size, memory type, etc.), and consumption power. Some non-limiting examples of architecture of the
<img file="MX343394B_D0109.tif" />
<img file="MX343394B_D0110.tif" />
multimode direct conversion, low or multimode IF receiver, multimode sampling IF receiver, broadband IF sampling architecture, broadband low IF / direct conversion architecture, direct sampling architecture.
In some embodiments, a receiver RF configuration or receiver RF type can also comprise a transceiver RF configuration or even a transmit RF configuration (for example, when transmitter RF has an impact on RF performance receiver of the same node). Thus, for example, in the modalities describing adaptation of the receiver RF type (eg solution 1 and / or solution 2), the adaptation may also comprise adaptation of the transceiver RF configuration or adaptation of the configuration. RF transmitter.
In some embodiments, the RF configuration may comprise any of the current configuration or the ability of the node to support a certain one or more of the RF configurations. In some examples, RF settings can also be predefined (for example, by means of the standard) or be configurable.
It is believed that many advantages of the technique described herein will be fully understood from the foregoing description, and it will be apparent that various changes can be made in the shape, construction, and arrangement of the
<img file="MX343394B_D0111.tif" />
exemplary modalities without departing from the scope of the invention twsTmrro mexicana t> £ IA INDUSTRIAL PROSTtTY
<img file="MX343394B_D0112.tif" />
r all these advantages. Because the present technique can vary in various ways, the invention should be limited only by the claims appended hereto.
Abbreviations
3GPP ADC AoA
AP
BS
AC
CC CDF CoMP C-RNTI CRS CPICH CQI CSG DAS
DL DSP eNodeB E-SMLC E-UTRAN GNNS GSM HASP HeNB
IE LCS LNA LPP LTE LMU MDT MIB MME
Abbreviations
3GPP ADC AoA
AP
BS
AC
CC CDF CoMP C-RNTI CRS CPICH CQI CSG DAS
DL DSP eNodeB E-SMLC E-UTRAN GNNS GSM HASP HeNB
IE LCS LNA LPP LTE LMU MDT MIB MME
3 Partnership Project<sup>ra</sup> Analog to Digital Conversion Generation
Arrival angle
Access point
Base station
Carrier addition
Carrier Component
Cumulative Distribution Function
Coordinated Multipoint Transmission Cell RNTI
Specific Cell Reference Signal
Common Pilot Channel
Channel Quality Indicator
Closed Subscriber Group
Distributed Antenna System
Downlink
Digital Signal Processor
Node B evolved
SMLC Evolved
UTRAN Evolved
Global Navigation Satellite System Global System for Mobile Communication High Speed Packet Access Local eNodeB
Information Element
Location Service
Low Noise Amplifier
LTE Positioning Protocol
Long Term Evolution
Location Measurement Unit
Transmission Test Minimization Master Information Block
Mobility Management Entity
<img file="MX343394B_D0113.tif" />
OSS
System
<img file="MX343394B_D0114.tif" />
Support
<img file="MX343394B_D0115.tif" />
MEXICAN INSTITUTE '··'> DE LA EKCNEDAI 'T% INDUSTRIAL
PCell PCI PDA PDF
PSAP
PUScH
PUCCH
RAT
RBS RF
RNC
RNTI
RRC
RRH
RRU
RSRP
RSRQ RSSI RSTD RTOA
RTT SCell
SIB
WITHOUT R
SNR
SLP
SMLC
ARE
MR
SUPL
TOA
EU
UL
UMTS
UTDOA
UTRA
UTRAN
WLAN
Parameterized Cell
Physical Cell Identity
Personal Digital Assistant
Density Probability Function
Public Security Response Point Shared Physical Uplink Channel
Shared Physical Uplink Channel
Radio Access Technology
Radio Base Station
Radio Frequency
Radio Network Controller
Temporary Identity of Radio Network Radio Resource Controller Remote Radio Terminal
Remote Radio Unit
Reference Signal Power Received Reference Signal Quality Received Signal Strength Indicator Received Signal Time Difference Relative TOA
Round Trip Time
Secondary Cell
System Information Block
Signal to Interference Ratio
Signal to Noise Ratio
UPL Location Platform
Optimized Auto Network Service Mobile Location Center
Polling Reference Signals
Safe User Plane
Time of arrival
User Equipment
Uplink
Universal Mobile Telecommunications System
UL Arrival Time Difference UMTS Terrestrial Radio Access
UMTS Terrestrial Radio Access Network Wireless Local Area Network
<img file="MX343394B_D0116.tif" />
MEXICAN INSTITUTE · DI INDUSTRIAL PROPERTY
Contents73
124 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8 Sheet 9 Sheet 10 Sheet 11 Sheet 12 Sheet 13 Sheet 14 Sheet 15 Sheet 16 Sheet 17 Sheet 18 Sheet 19 Sheet 20 Sheet 21 Sheet 22 Sheet 23 Sheet 24 Sheet 25 Sheet 26 Sheet 27 Sheet 28 Sheet 29 Sheet 30 Sheet 31 Sheet 32 Sheet 33 Sheet 34 Sheet 35 Sheet 36 Sheet 37 Sheet 38 Sheet 39 Sheet 40 Sheet 41 Sheet 42 Sheet 43 Sheet 44 Sheet 45 Sheet 46 Sheet 47 Sheet 48 Sheet 49 Sheet 50 Sheet 51 Sheet 52 Sheet 53 Sheet 54 Sheet 55 Sheet 56 Sheet 57 Sheet 58 Sheet 59 Sheet 60 Sheet 61 Sheet 62 Sheet 63 Sheet 64 Sheet 65 Sheet 66 Sheet 67 Sheet 68 Sheet 69 Sheet 70 Sheet 71 Sheet 72 Sheet 73 Sheet 74 Sheet 75 Sheet 76 Sheet 77 Sheet 78 Sheet 79 Sheet 80 Sheet 81 Sheet 82 Sheet 83 Sheet 84 Sheet 85 Sheet 86 Sheet 87 Sheet 88 Sheet 89 Sheet 90 Sheet 91 Sheet 92 Sheet 93 Sheet 94 Sheet 95 Sheet 96 Sheet 97 Sheet 98 Sheet 99 Sheet 100 Sheet 101 Sheet 102 Sheet 103 Sheet 104 Sheet 105 Sheet 106 Sheet 107 Sheet 108 Sheet 109 Sheet 110 Sheet 111 Sheet 112 Sheet 113 Sheet 114 Sheet 115 Sheet 116 Sheet 117 Sheet 118 Sheet 119 Sheet 120 Sheet 121 Sheet 122 Sheet 123 Sheet 124
23 members in 11 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 61708177 | United States of America | – | |
| 201261708177 | United States of America | P | |
| 2013070448 | European Patent Office (EPO) | W |
Members23
| Document | Office | Kind | |
|---|---|---|---|
| US2014092771A1 | United States of America | A1 | |
| WO2014053487A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2014053488A2 | World Intellectual Property Organization (WIPO) | A2 | |
| WO2014053488A3 | World Intellectual Property Organization (WIPO) | A3 | |
| MX2015004138A | Mexico | A | |
| EP2904721A1 | European Patent Office (EPO) | A1 | |
| EP2904833A2 | European Patent Office (EPO) | A2 | |
| IN2307DEN2015A | India | A | |
| CN104904145A | China | A | |
| US2015257118A1 | United States of America | A1 | |
| JP2016500212A | Japan | A | |
| HK1209916A1 | Hong Kong, China | A1 | |
| US9386469B2 | United States of America | B2 | |
| US9439166B2 | United States of America | B2 | |
| EP2904833B1 | European Patent Office (EPO) | B1 | |
| MX343394BThis record | Mexico | B | |
| EP2904721B1 | European Patent Office (EPO) | B1 | |
| JP6063050B2 | Japan | B2 | |
| CN104904145B | China | B | |
| PL2904721T3 | Poland | T3 | |
| BR112015006962A2 | Brazil | A2 | |
| ES2625052T3 | Spain | T3 | |
| BR112015006962B1 | Brazil | B1 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Grant or registrationFG | FG |
Numbers
- Publication
- 343394
- Application
- 4138
Titles2
- Spanish
- METODO Y APARATO PARA ESTIMACION METRICA DE RENDIMIENTO DE RF.
- English
- METHOD AND APPARATUS FOR RF PERFORMANCE METRIC ESTIMATION.
Classification
- CPC, 9
- H04B17/29
- G01S5/021
- H04W64/00
- H04B17/24
- H04B17/0085
- H04B17/21
- H04B17/309
- H04W24/08
- H04W24/10
- IPC, 4
- H04B17 21
- H04B17 309
- H04W24 10
- H04W64 00