Cell selection and reselection in deployments with home nodebs

CELL SELECTION AND RESELECTION IN DEPLOYMENTS WITH HOME NodeBs in deployments containing Home Node Bs

The following description relates generally to wireless communication, and more specifically to cell selection and reselection in deployments of Home Node Bs.

This patent application is filed on March 21, 2008, entitled "CELL SELECTION AND RESELECTION IN DEPLOYMENTS WITH HOME NODEBS" and application number 61/038,666, assigned to the assignee of this application and incorporated herein by reference in its entirety. Claims priority to provisional U.S. patent applications.

Wireless communication systems are widely used to provide various types of communication contents such as, for example, voice, data, and the like. Typical wireless communication systems may be multiple-access systems capable of supporting communication with multiple terminals by sharing available system resources (eg, bandwidth, transmit power). Examples of such multiple access systems include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, etc. . In addition, the systems are supported by multi-carrier radio specifications such as Third Generation Partnership Project (3GPP), 3GPP Long Term Evolution (LTE), Ultra Mobile Broadband (UMB), and/or Optimized Evolution Data (EV-DO); The specifications, such as one or more modifications thereof, may follow.

In general, wireless multiple-access communication systems are capable of simultaneously supporting communication for multiple mobile devices. Each mobile device may communicate with one or more base stations via transmissions on forward and reverse links. The forward link (or downlink) refers to the communication link from base stations to mobile devices, and the reverse link (or uplink) refers to the communication link from mobile devices to base stations. Additionally, communications between mobile devices and base stations may be via single-input single-output (SISO) systems, multiple-input single-output (MISO) systems, multiple-input multiple-output (MIMO) systems, and the like. can be set. In addition, mobile devices may communicate with other mobile devices in peer to peer wireless network configurations.

A simplified summary of one or more aspects is presented below to provide a basic understanding of these aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither delineate the scope of all or any aspects nor to identify essential or critical elements of all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

In accordance with related aspects, home node base stations and a method for facilitating cell selection associated with node base stations are presented. The method may include using a hierarchical structure to organize at least one node base station (NodeB) and at least one home node base station (Home NodeB), the hierarchical structure gives priority to home Node B over Node B. The method further comprises receiving a portion of data related to a system information block (SIB) from at least one of a NodeB and a home NodeB, wherein the SIB configures a user equipment (UE) to discover the home NodeB. configured to enable. The method may also include forwarding a detection notification related to the home NodeB to the macro network. The method may include using at least one of the hierarchical structure or a portion of the data associated with the SIB to enable the UE to select between the home NodeB or the NodeB.

Another aspect relates to a wireless communication device. The wireless communication device organizes at least one node base station (Node B) and at least one home node base station (Home Node B) in a hierarchical structure in which a home Node B is prioritized over a Node B, and a system information block (SIB) receiving a communication from at least one of a NodeB and the home NodeB, leveraging the SIB to identify the home NodeB, and a manual via the UE to discover the home NodeB use discovery, evaluate a PLMN ID to identify at least one of the Home NodeB or the NodeB, receive an LAC assignment to distinguish between an unauthorized Home NodeB and an Authorized Home NodeB; the hierarchical structure, a part of the data related to the SIB, the PLMN ID, the PLMN ID, to forward a detection notification related to B to a macro network, and to enable the UE to select between the Home NodeB or NodeB manual navigation, or at least one processor configured to use at least one of the LAC assignments.

Another aspect relates to a wireless communication apparatus that enables efficient selection for user equipment, wherein a home node base station takes precedence over a node base station. The wireless communication apparatus may include means for receiving a portion of data related to at least one of a node base station (NodeB) or a home node base station (Home NodeB) associated with the macro network. The wireless communication device may also include means for evaluating the portion of the data to identify a priority between the home NodeB and the NodeB. The wireless communication apparatus may include means for selecting a home NodeB for UE connection over the NodeB based on the evaluation. The wireless communication apparatus may further include means for connecting a UE to at least one of the home NodeB or the NodeB based on the selection.

Yet another aspect is to cause the at least one computer to organize at least one node base station (NodeB) and at least one home node base station (Home NodeB) into a hierarchical structure that prioritizes home NodeB over NodeB, stored thereon. code for causing at least one computer to receive a transmission comprising a system information block (SIB) from at least one of a NodeB and a home NodeB, for causing at least one computer to identify the home NodeB code for leveraging the SIB, code for causing at least one computer to use a manual search through the UE to discover the Home NodeB, causing at least one computer to cause the Home NodeB or the Node code for causing the at least one computer to evaluate a PLMN ID to identify at least one of the B's, for causing the at least one computer to receive an LAC assignment to distinguish between an unauthorized home NodeB and an authorized home NodeB; code for causing the at least one computer to forward a detection notification related to a Home NodeB to a macro network, and causing the at least one computer to select between the Home NodeB or the NodeB, the hierarchical structure, the A computer program product comprising a computer-readable medium comprising code for using at least one of a portion of data associated with a SIB, the PLMN ID, the manual search, or the LAC assignment.

According to other aspects, an apparatus comprises: a receiver module receiving a portion of data, wherein the portion of data is SIB for home NodeB, SIB for NodeB, PLMN ID for home NodeB, PLMN ID for NodeB , at least one of LAC for Home NodeB and LAC for NodeB-, a selection module that identifies at least one of a Home NodeB for access or a NodeB for a connection based on a portion of the received data, the identification the selection module forwarding the home NodeBs to the macro network, and a search module for discovering at least one home NodeB based on a user-initiated manual request, wherein the discovery leverages a portion of the data. .

According to other aspects, a method is presented that facilitates efficient selection for user equipment, wherein a home node base station takes precedence over a node base station. The method may include receiving, from a user equipment (UE), a detection notification associated with a home node base station (home NodeB), the detection notification identifying the home NodeB for access. The method may also include organizing at least one node base station (NodeB) and the at least one home NodeB within a hierarchical structure that prioritizes access to the UE with the home NodeB over the NodeB. can The method may further include establishing a connection between the UE and at least one of the home NodeB or the NodeB based on one of the hierarchical structures.

Another aspect relates to a wireless communication device. the apparatus receives, from a user equipment (UE), a detection notification related to a home node base station (home NodeB), wherein the detection notification identifies the home NodeB for access, and to the home NodeB rather than the NodeB organize at least one node base station (NodeB) and the at least one home NodeB within a hierarchical structure that prioritizes access to the UE, and based on one of the hierarchical structures, the NodeB or the home at least one processor configured to establish a connection between at least one of the NodeBs and the UE.

Another aspect relates to a wireless communication apparatus that enables communication for detection of a home node base station for a connection. The wireless communication apparatus may include means for receiving, from the first UE, a notification relating to the detected home node base station (Home NodeB). The wireless communication apparatus may further include means for forwarding information related to the detected home NodeB to a second UE. The wireless communication device may include means for leveraging the portion of data associated with the detected home NodeB to distinguish the home NodeB from the NodeB. The wireless communication apparatus may also include means for enabling the UE to connect to at least one of the home NodeB or the NodeB based on the part of the data.

Yet another aspect is a stored code for causing at least one computer to receive, from a user equipment (UE), a detection notification related to a home node base station (Home NodeB), the detection notification identifying the home NodeB for access -, to cause at least one computer to organize at least one node base station (NodeB) and said at least one home NodeB within a hierarchical structure that prioritizes access to the UE with the home NodeB over the NodeB and code for causing at least one computer to enable a connection between the UE and at least one of the home NodeB or the NodeB based on the hierarchical structure. It relates to a computer program product comprising

According to another aspect, an apparatus organizes a receiver module for receiving a detected home node base station (Home NodeB) from a user equipment (UE), at least one node base station (NodeB) and at least one detected home NodeB an organizer module using a hierarchical structure to at least one of SIB for , SIB for NodeB, PLMN ID for Home NodeB, PLMN ID for NodeB, LAC for Home NodeB, and LAC for NodeB.

For the achievement of the foregoing and related purposes, one or more aspects comprise the features hereinafter described and particularly pointed out in the claims. The detailed description that follows and the accompanying drawings set forth specific illustrative features of one or more aspects. These features are illustrative except for a few different ways in which the principles of various aspects may be used, and this description is intended to include all aspects and similar scopes thereof.

1 is an illustration of a wireless communication system in accordance with various aspects presented herein. 2 is an illustration of an example communication device for deployment within a wireless communication environment. 3 is an illustration of an example wireless communication system that facilitates home node base stations and cell selection associated with the node base stations. 4 is an illustration of an example methodology that allows home node base stations to make efficient selection for user equipment that takes precedence over node base stations. 5 is an illustration of an example methodology for forwarding detection of a home node base station for access. 6 is an illustration of an example mobile device that facilitates communicating information related to the detection of a home node base station in a wireless communication system. 7 is an illustration of an example system that facilitates selection of a home node base station over a node base station in a wireless communication environment. 8 is an illustration of an example wireless network environment that may be employed in connection with the various systems and methods described herein. 9 is an illustration of an example system that facilitates efficient selection of user equipment in which a home node base station takes precedence over a node base station; 10 is an illustration of an example system for forwarding detection to a home node base station for access.

Various aspects are now described with reference to the drawings. In the description that follows, for purposes of illustration, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It will be evident, however, that such aspects may be practiced without these specific details.

As used herein, the terms "component," "module," "system," and the like are computer-related, such as, but not limited to, hardware, firmware, a combination of hardware and software, software, or execution of software. It is intended to include entities. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and a computing device may be a component. One or more components may reside within a processor and/or thread of execution, and a component may be localized within one computer, or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored therein. The components may contain, for example, a signal having one or more data packets (eg, data from one component interacting with another component in a local system, a distributed system and/or data via a network such as the Internet with another system via a signal). ) to communicate via local and/or remote processes.

Also, various aspects are described herein in connection with a terminal, which may be a wired or wireless terminal. A terminal may also be a system, device, subscriber unit, subscriber station, mobile station, mobile, mobile device, remote station, remote terminal, access terminal, user terminal, terminal, communication device, user agent, user device, or user equipment (UE). may be referred to. Wireless terminals include cellular phones, satellite phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless access capability, It may be a computing device, or other processing devices connected with a wireless modem. Moreover, various aspects are described herein in the context of a base station. A base station may be used to communicate with wireless terminal(s) and may also be referred to as an access point, a Node B, or some other terminology.

Moreover, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or." That is, unless otherwise specified or clear from context, "X employs A or B" is intended to mean any naturally-occurring implicit permutation. That is, X employs A; X employs B; or if X employs both A and B, then "X employs A or B" is satisfied under either of these cases. Also, unless otherwise specified or unless it is clear from context to refer to a singular form, the singular in the specification and claims should generally be construed to mean "one or more".

The techniques described herein may be used for various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system may implement a radio technology such as Universal Terrestrial Radio Access (UTRA), cdma2000, and the like. UTRA includes Wideband-CDMA (WCDMA) and various other CDMA. cdma2000 also includes IS-2000, IS-95, and IS-856 standards. A TDMA system may implement a radio technology such as Universal System for Mobile Communications (GSM). OFDMA systems may implement radio technologies such as evolved UTRA (E-UTRA), ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, flash OFDM, etc. . UTRA, E-UTRA is part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) is the next release of UMTS using E-UTRA, employing OFDMA on the downlink and SC-FDMA on the uplink. UTRA, E-UTRA, GSM, UMTS and LTE are presented in the documents of the "3rd Generation Partnership Project (3GPP)". Also, cdma2000 and UMB are presented in the documents of "3rd Generation Partnership Project 2 (3GPP2)". In addition, such wireless communication systems additionally often additionally employ peer-to-peer (eg, mobile -to-mobile) ad hoc network systems.

Various aspects or features will be presented in terms of systems that may include a number of devices, components, modules, and the like. It should be understood and appreciated that various systems may include additional devices, components, modules, etc. and/or may not include all devices, components, modules, etc. discussed in connection with the above form. something to do. Combinations of these approaches may also be used.

Referring now to FIG. 1 , a wireless communication system 100 is illustrated in accordance with various embodiments presented herein. System 100 includes a base station 102 that may include multiple antenna groups. For example, one antenna group may include antennas 104 and 106 , another group may include antennas 108 and 110 and an additional group may include antennas 112 and 114 . can Although two antennas are shown for each antenna group, more or fewer antennas may be used for each group. As can be understood by those of ordinary skill in the art to which the present invention pertains, the base station 102 additionally includes a transmitter chain and a receiver chain, each of which alternately transmits and receives signals; It may include a number of associated components (eg, processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.).

Base station 102 may communicate with one or more devices, such as mobile device 116 and mobile device 122 , although base station 102 may include any number of mobile devices similar to mobile devices 116 and 122 . It will be appreciated that the user can actually communicate with the For example, mobile devices 116 and 122 may include cellular phones, smart phones, laptops, small communication devices, small computing devices, satellite radios, global positioning systems, PDAs, and/or wireless communication systems. It may be any other suitable device for communicating via 100 . As described, mobile device 116 communicates with antennas 112 and 114 , which transmit information to mobile device 116 via forward link 118 and reverse link ( Receive information from mobile device 116 via 120 . In addition, the mobile device communicates with antennas 104 and 106 , which transmit information to mobile device 122 via forward link 124 and to the mobile device via reverse link 126 . Receive information from (122). In a frequency division duplex (FDD) system, for example, forward link 118 may use a different frequency band than that used by reverse link 120 , and forward link 124 may use reverse link 126 . It is possible to use a frequency band different from the frequency band used by Also, in a time division duplex (TDD) system, forward link 118 and reverse link 120 may use a common frequency band, and forward link 124 and reverse link 126 may use a common frequency band. .

Each group of antennas and/or the area in which they are designated to communicate may be referred to as a sector of base station 102 . For example, antenna groups may be designed to communicate with mobile devices in a sector of areas covered by base station 102 . In communication over forward links 118 and 124 , the transmit antennas of base station 102 beam to improve the signal-to-noise ratio of forward links 118 and 124 for mobile devices 116 and 122 . Beamforming may be used. Also, while base station 102 uses beamforming to transmit randomly spread out mobile devices 116 and 122 over the associated coverage, mobile devices in neighboring cells can all their mobile devices via a single antenna. It may cause less interference compared to the base station transmitting to them.

*Base station 102 (and/or each sector of base station 102) may use one or more multiple access technologies (eg, CDMA, TDMA, FDMA, OFDMA, ...). For example, base station 102 may use certain technologies for communicating with mobile devices (eg, mobile devices 116 and 122 ) on that frequency. Moreover, when more than one technology is used by the base station 102, each technology may be associated with a respective bandwidth. The techniques described herein include Universal System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Enhanced Data Rates for GSM Evolution (EDGE), Universal Mobile Communications System (UMTS), Wideband Code Division Multiplexing. Access (W-CDMA), cdmaOne (IS-95), CDMA2000, Optimized Evolution-Data (EV-DO), Ultra Mobile Broadband (UMB), WiMAX, MediaFLO, Digital Multimedia Broadcasting (DMB), digital video broadcasting-handheld (DVB-H), and the like. The list of techniques described above is provided by way of example and is not so limited as to the subject matter claimed; Rather, substantially any wireless communication technologies are intended to be included within the scope of the appended claims.

The base station 102 may use a first bandwidth using a first technology. Also, the base station 102 may transmit a pilot corresponding to the first technique on a second bandwidth. According to one example, the second bandwidth may be leveraged by base station 102 and/or any other base station (not shown) for communication using any second technology. In addition, the pilot may indicate the presence of the first technology (eg, with a mobile device communicating via the second technology). For example, the pilot may use bit(s) to carry information regarding the existence of the first technology. Additionally, information such as SectorID of the sector using the first technology, CarrierIndex indicating the first frequency bandwidth, etc. may be included in the pilot.

According to another example, the pilot may be a beacon (and/or a sequence of beacons). A beacon may be an OFDM symbol in which a large fraction of power is transmitted over one subcarrier or a small number of subcarriers (eg, a small number of subcarriers). Thus, while interfering with data over a narrow portion of the bandwidth (eg, the remaining portion of the bandwidth may not be affected by the beacon), the beacon is strong enough to be observed by the mobile device. ) gives a peak. Following this example, a first sector may communicate via CDMA on a first bandwidth and a second sector may communicate via OFDM on a second bandwidth. Accordingly, the first sector may determine the availability for CDMA on the first bandwidth by transmitting an OFDM beacon (or sequence of OFDM beacons) on the second bandwidth (eg, a mobile device operating the use of OFDM on the second bandwidth). can be shown to (s).

In general, the innovation of the present invention may enable efficient cell selection and reselection in deployments comprising a home node base station (Home NodeB, HNB, etc.). The claimed subject matter can provide techniques for legacy User Equipment (UE) and/or User Equipment (UE) to incorporate the capability to leverage the Home NodeB in addition to the existing NodeBs. have. Accordingly, modifications are provided for cell selection and reselection to implement efficient home NodeB search, selection and reselection. In addition, by incorporating these variants, the innovation of the present invention can reduce the impact on standby time of UEs (eg legacy UEs, etc.) as well as UEs not subscribed to the Home NodeB.

The claimed invention may use at least one of the following variants to optimize cell search, selection, and/or reselection: manual search for home NodeB; A system information block (SIB) configuration for a UE, where the SIB on the macro network including the NodeB and the SIB on the home NodeB may facilitate discovery for the UE; hierarchical cell structure for prioritizing home Node B over Node B; individual public land mobile network identification (PLMN ID) for Home NodeBs and NodeBs, wherein the PLMN ID may be used to prioritize the Home NodeB over the macro network comprising the NodeB; home NodeBs and a location area code (LAC) assignment to the NodeBs, wherein the LAC assignment can distinguish between a NodeB and a home NodeB; UE-based learning to leverage home NodeBs to which the UE was previously connected to efficiently connect with previous home NodeBs; or broadcasting of scrambling codes that can be used to distinguish between a NodeB and a home NodeB.

Turning to FIG. 2 , a communication device 200 is shown for deployment within a wireless communication environment. The communication apparatus 200 may be a base station or portion thereof, a user equipment (UE) or portion thereof, a mobile device or portion thereof, or substantially any communication apparatus that receives data transmitted in a wireless communication environment. . In communication systems, the communication device 200 uses the components described below to configure the communication device 200 to report a UPH measurement during a reduced measurement period shorter than 100 (ms).

* The communication device 200 may include a receiver module 202 capable of receiving a part of data, the part of the data being a system information block (SIB) type for the home NodeB, a SIB for the NodeB, It may be at least one of a Public Land Mobile Network Identification (PLMN ID) for the Home NodeB, a PLMN ID for the NodeB, a Location Area Code (LAC) for the Home NodeB, or an LAC for the NodeB. In addition, the receiver module 202 may receive forwardings from at least one Home NodeB, and the communication may enable detection of such Home NodeBs.

The communication device 200 may further include a selection module 204 capable of forwarding the identified home NodeB to the macro network and/or the NodeB, wherein the macro network and/or the NodeB is the detected home NodeB may be transferred to another user equipment (UE). The selection module may additionally identify at least one of a home NodeB for access and a NodeB for access based on a part of the received data.

Moreover, although not shown, it relates to the communication device 200 using a hierarchical structure to organize at least one node base station (NodeB) and at least one home node base station (Home NodeB), wherein the The hierarchical structure prioritizes home NodeB over NodeB and relates to receiving a portion of data related to a System Information Block (SIB) from at least one of NodeB and Home NodeB, wherein the SIB is user equipment ( enable the UE) to discover the Home NodeB, related to forwarding a detection notification related to the Home NodeB to the macro network, for allowing the UE to select between the Home NodeB or the NodeB It will be appreciated that it may include a memory that retains instructions related to using at least one of a hierarchical structure or a portion of data associated with the SIB. In addition, the memory is related to using a manual search through the UE to discover the Home NodeB, and controlling the selection of the Home NodeB and the search for the Home NodeB including a mobility factor and a penalty timer. receiving a first public land mobile network identification (PLMN ID) assignment for a home NodeB and a second public land mobile network identification (PLMN ID) assignment for a macro network comprising the NodeB; wherein the first PLMN ID assignment takes precedence over the second PLMN ID assignment, and relates to using a first PLMN ID assignment and a second PLMN assignment to select between a home NodeB or a NodeB, causing the UE to be a home node related to dynamically updating two or more equivalent PLMN IDs to allow searching for B, and receiving a location area code (LAC) assignment; where the LAC assignment is used to distinguish between an unauthorized Home NodeB and an Authorized Home NodeB, and relates to receiving a PLMN ID for a selected Home NodeB, where the UE connects with the selected Home NodeB is established, related to tracking a PLMN ID associated with a selected home NodeB, and using the tracked PLMN ID to select between a first home NodeB and a second home NodeB, wherein the tracked PLMN Connecting with at least one of the first home NodeB and the second home NodeB based on the ID, receiving a scrambling code associated with the home NodeB, and receiving to identify an existing SIB or a new SIB may hold instructions related to evaluating a scrambling code, using the evaluation to search for a NodeB, using the evaluation to inhibit a search for a home NodeB, and the like.

Furthermore, the communication device 200 is related to receiving, from a user equipment (UE), a detection notification associated with a home node base station (home NodeB), wherein the detection notification identifies the home NodeB for connection, the node related to organizing at least one node base station (Node B) and at least one home NodeB within a hierarchical structure that prioritizes access to the UE to the home NodeB over B, the UE based on one of the hierarchical structures It will be appreciated that the memory may include a memory holding instructions related to establishing a connection between the and the home NodeB or at least one of the NodeBs. Further, the memory is associated with transmitting a portion of data associated with a home NodeB system information block (SIB) and a portion of data associated with the NodeB SIB, and based on the portion of data, at least one of the NodeB or the home NodeB related to establishing a connection between a home node and a UE, and conveying a public land mobile network identification (PLMN ID) associated with the home NodeB and a PLMN ID associated with the NodeB, the PLMN ID associated with the home node and the NodeB related to establishing a connection between the UE and at least one of the Home NodeB or NodeB based on the PLMN ID associated with and establish a connection between the UE and at least one of the home NodeB or the NodeB based on one of the LAC assignment to the home NodeB and the LAC assignment to the NodeB, and the like. . In addition, the communication device may include a processor that may be utilized in accordance with the execution of instructions (eg, instructions held within a memory, instructions obtained from another source).

Referring now to FIG. 3 , shown is a wireless communication system 300 that facilitates home node base stations and cell selection associated with the node base stations. The system 300 includes a base station 302 in communication with a user equipment (UE) 304 (and/or any number of other communication devices (not shown)). Base station 302 may send information to UE 304 over a forward link channel; In addition, the base station 302 may receive information from the UE 304 over a reverse link channel. Also, system 300 may be a MIMO system. Additionally, the system 300 may operate in an OFDMA wireless network, a 3GPP LTE wireless communication network, and the like. In addition, the components and functions shown and described in the base station 302 below may also be presented in the UE 304 and vice versa, in one example; The depicted configuration excludes these components for convenience of description.

The UE 304 may include a receiver module 306 capable of receiving a portion of data related to at least one of a home NodeB, a NodeB, or a macro network comprising a NodeB. Some of the data may be SIB for Home NodeB, SIB for NodeB, PLMN ID for Home NodeB, PLMN ID for NodeB, LAC for Home NodeB, LAC for NodeB, but is limited thereto doesn't happen The receiver module 306 may additionally receive information related to the detected home Node B.

The UE 304 may further include a selection module 308 that may enable cell (eg, NodeB, Home NodeB, etc.) selection for the UE 304 . In general, the UE 304 may leverage some of the received data to identify at least one of the home NodeB or NodeB for access. In general, some of the received data may provide home NodeB parameters and macro NodeB parameters, and the home NodeB parameters may be prioritized.

The UE 304 may further include a discovery module 310 that may enable manual discovery to discover the home NodeB. For example, a manual search may be initiated by a user request, and the search module 310 may detect any suitable home NodeB within a predefined proximity or signal range.

The base station 302 may include a receiver module 312 capable of receiving a communication from the UE 304 identifying the detected home NodeB. In other words, the UE may detect a Home NodeB and the receiver module 312 may receive information related to this detected Home NodeB (eg, Home NodeB parameters, etc.).

The base station 302 may include an organizer module 314 capable of hierarchically structuring or arranging the priorities of connections that a detected home NodeB may prefer over a NodeB or a macro NodeB. In general, the organizer module 314 may broadcast home NodeB parameters and macro NodeB parameters, wherein the home NodeB parameters can be distinguished from macro NodeB parameters and take precedence over macro NodeB parameters. can be

Additionally, the base station 302 may include a transmitter module 316 capable of broadcasting home NodeB parameters and macro NodeB parameters, the home NodeB parameters being in proximity or within range. It may be transmitted to other (disparate) UEs that do not recognize or do not discover them. Transmitter 316 may transmit or broadcast portions of data related to parameters for home NodeBs or macro NodeBs, the portions of data being SIB for Home NodeB, SIB for NodeB, Home At least one of a PLMN ID for the NodeB, a PLMN ID for the NodeB, an LAC for the Home NodeB, or an LAC for the NodeB.

In general, the innovation of the present invention may modify cell search, cell selection, and cell reselection techniques with respect to home NodeBs. The innovation of the present invention can reduce the impact on the latency of legacy UEs as well as UEs that are not subscribed to any home NodeB. Manual search allows the UE to identify a home NodeB that is within a pre-defined proximity or range. In addition, the innovation of the present invention can modify the neighbor set configuration, where the SIB type is the home NodeB and the macro network to enable the UE to give preference to the home NodeB over the macro network (and including NodeBs). can be configured on For example, SIB3 and SIB11 on the Home NodeB as well as the Macro NodeB may be configured to assist the UE in discovering the Home NodeB. When the Home NodeB is found, the UE gives priority to the Home NodeB over the macro cell.

In addition, the claimed invention may be implemented with a hierarchy of cells, wherein the hierarchy of cells takes precedence over a home NodeB over a macro NodeB. Both the mobility criteria and the penalty timer can control home NodeB discovery and cell reselection. Additionally, the content of the present invention can give priority to the home NodeB over the NodeB or the macro NodeB by leveraging the PLMN ID. Individual PLMN ID assignments for the macro network and the home NodeB network may give priority to the home NodeB over the macro NodeB. In addition, the equivalent PLMN IDs may be dynamically updated to coordinate the search for the Home NodeB. In addition, the LAC allocation can be leveraged to allow the UE to distinguish between an unauthorized Home NodeB and an Authorized Home NodeB.

The subject matter of the present invention may additionally provide UE-based learning, wherein the UE may prioritize searching for recently used PLMNs to reduce latency and current drain for system selection. The UE may store, record, maintain a list of connected (eg, recently used) Home NodeBs, or store a set of connected Home NodeBs. Also, after the first discovery, the UE may leverage this set of Home NodeBs to record or maintain relevant information for later efficient Home NodeB discovery. Additionally, the content of the present invention can reduce the impact on UEs that are not authorized through any home NodeB. The scrambling code assigned to home NodeBs can be used to broadcast a new or existing SIB and to distinguish those assigned to macro NodeBs in the neighbor list. LAC allocation may additionally be used to allow the UE to distinguish between an unauthorized Home NodeB and an Authorized Home NodeB. Similarly, for access to hierarchical cells, a distinct high priority may be for the Home NodeB. Through this distinction, the UE may prohibit implementing Home NodeB discovery, and may not discover Home NodeB.

Studies on legacy Home NodeB (HNB) support for UTRA indicate that currently available mechanisms for legacy UE mobility for UTRA HNB deployments are not optimized, thus cell re-organization in the presence of HNBs or Femto cells. It concludes that modifications may be required to effectively support selection. Therefore, it would be desirable to identify the interaction between possible HNB deployment scenarios and provide the required enhancements for cell selection/reselection in the presence of HNBs.

Various arrangement embodiments may exist. HNB deployment embodiments may be distinguished by many categories, such as, for example, association model (closed/open subscriber group), relationship between HNB spectrum and macro network spectrum, network architecture, and the like. Two categories following from the HNB cell reselection view may relate to association models: the supported association models include open association (eg, open access), closed subscriber group (CSG, eg, limited association). do. An open association allows any subscriber to camp on any HNB and access any CS and PS services while the HNB is camped on. CGS limits subscribers to only camp on authorized HNBs. Thus, the subscriber cannot camp on unauthorized HNBs and cannot access CS and PS services using any unauthorized HNB. Relationship between HNB spectrum and macro network spectrum: HNBs may be deployed on one or more carriers. In addition, the HNB deployment may share one or more carriers through the macro network or have its own dedicated carriers separate from carriers to the macro network.

Through such classification, the HNB deployment embodiments may be: 1) open association-carrier shared between macro cell and HNB; 2) open association-carrier dedicated to HNBs; 3) CSG-carrier shared between macro cell and HNB; 4) Dedicated carrier to CSG-HNBs.

The content of the present invention can develop cell selection/reselection solutions applicable to the above deployment embodiments. For example, HNBs provide some motivation for operators, and these motivations define requirements for HNB cell selection/reselection. As an example, an operator may consider HNB deployment to supplement macro network coverage to improve overall coverage. In this scenario, the subscriber selects the best available coverage that can be provided by the HNB or macro network. Accordingly, the operator may not be aware of the request to prioritize the selection of the HNB over the selection of the macro network. Alternatively, the operator may introduce special billing plans by differentiating the services provided by the HNB. In this scenario, the subscriber will prioritize the selection of the HNB over the selection of the macro network. Opportunities to offload traffic from the macro network to the HNB may also stimulate this prioritization. A major innovation may additionally support the priority of HNBs over macro networks when sufficient quality HNB coverage is available.

Various alternative approaches to HNB discovery are further summarized below: 1) Manual discovery: Subscribers can always rely on manual discovery to discover neighboring HNBs. 2) Neighboring Set Configuration: Both SIB3 and SIB11 on the macro NB as well as the HNB are configured to help the UE discover the HNB. Through the discovery, the UE can prioritize the HNB over the macro cell. 3) Hierarchical Cells: Hierarchical cells can help to prioritize HNB over macro NB. Both the mobility criteria and the penalty timer can control HNB discovery and cell reselection. 4) PLMN ID allocation: Separate PLMN ID allocation for macro network and HNB network may help to prioritize HNB over macro network. In addition, equivalent PLMNs may be dynamically updated to adjust the search for the HNB. 5) Location Area Code (LAC) Allocation: LAC allocation can be used to allow the UE to distinguish between an authorized HNB and an adjacent unlicensed HNB. 6) UE-based learning: Current UEs prioritize the search for the most recently used PLMN to reduce the current drain and latency for system selection. With the introduction of HNBs, this procedure can be extended so that the UE remembers the recently used set of HNBs. In addition, after the initial discovery, the UE may remember the relevant information for efficient HNB discovery in the future.

In Table 1 below, the matching of the approaches to the prioritization requirements and deployment embodiments discussed above is further summarized.

<tables num="1"><table><title>&lt;Table 1&gt;</title><tgroup cols="3"><colspec colnum="1" align="justify" colname="col1" colwidth="3670" /><colspec colnum="2" align="center" colname="col2" colwidth="3689" /><colspec colnum="3" align="center" colname="col3" colwidth="3650" /><tbody><row><entry align="justify" colname="col1"></entry><entry align="center" colname="col2"> Enhanced Coverage </entry><entry align="center" colname="col3"> HNB Prioritization</entry></row><row><entry align="center" colname="col1"> open association </entry><entry align="center" colname="col2"> Neighbor Set Configuration </entry><entry align="center" colname="col3"> Hierarchical Cells PLMN ID Assignment </entry></row><row><entry align="center" colname="col1"> closed subscriber group </entry><entry align="center" colname="col2"></entry><entry align="center" colname="col3"> LAC Assignment UE-Based Learning</entry></row></tbody></tgroup></table></tables>

As indicated in the table above, neighbor set configuration and access to hierarchical cells affect all UEs within coverage of macro NBs that support these features. While within macro coverage, UEs actively search for HNBs. For CSG deployment, frequency discovery for unauthorized HNBs results in frequency registration attempts and degradation during latency. In order to reduce this effect on the UE not authorized on any HNB, the scrambling codes assigned to HNBs can be distinguished from the codes assigned to macro NBs in the neighboring list and the new SIB or the existing SIB's. It can be broadcast as an extension. LAC allocation may be used to allow the UE to distinguish between an authorized HNB and an adjacent unlicensed HNB. Similarly, for hierarchical cells this approach may retain a distinct high priority for HNBs. With this distinction, UEs not interested in HNB discovery will not discover HNBs.

To support CSG deployments, the innovation of the present invention can reduce the impact on UEs that do not include an HNB subscriber (macro UEs) by distinguishing the HNB parameters from the macro NB parameters broadcast in the macro network. In addition, PLMN ID allocation approaches as well as neighboring set configuration, hierarchical cells are suitable for open association deployment. For CSG deployment, these approaches can be considered by relying on UE-based learning. By leveraging the region (local database) where the information is stored, the UE can avoid futile registration attempts with unauthorized HNBs and efficiently search for authorized HNBs. In addition, by implementing UE-based learning, the main content of the present invention can improve HNB discovery.

The innovation of the present invention can be used for Home NodeB selection and reselection for the deployment scenarios mentioned above. In addition, home NodeBs may be prioritized over macro networks or NodeBs when sufficient quality home NodeB coverage is available. Additionally, to support CSG deployments and reduce the impact on UEs without a Home NodeB subscriber, the distinction between macro NodeB parameters and Home NodeB parameters may be broadcast within the macro network.

*Also, although not shown, the base station 302 uses a hierarchical structure to organize at least one node base station (NodeB) and at least one home node base station (Home NodeB), wherein the The hierarchical structure prioritizes home NodeB over NodeB and relates to receiving a portion of data related to a system information block (SIB) from at least one of the NodeB and the home NodeB, wherein the SIB is user equipment ( UE) to discover the Home NodeB, related to forwarding a detection notification related to the Home NodeB to the macro network, and for enabling the UE to select between the Home NodeB or the NodeB layer It will be appreciated that it may include a memory holding instructions related to using at least one of a portion of the data associated with the data structure or the SIB. In addition, the memory relates to using a manual search through the UE to discover the Home NodeB, and controlling the selection of the Home NodeB and the search for the Home NodeB via a mobility factor and a penalty timer, receiving a first public land mobile network identification (PLMN ID) assignment for a home NodeB and a second public land mobile network identification (PLMN ID) assignment for a macro network comprising the NodeB, wherein the first The PLMN ID assignment takes precedence over the second PLMN ID assignment, and involves using the first PLMN ID assignment and the second PLMN ID assignment to select between the Home NodeB or NodeB, and causing the UE to discover the Home NodeB. related to dynamically updating two or more equivalent PLMN IDs to enable, and receiving a location area code (LAC) assignment; wherein the LAC assignment is used to distinguish between an unauthorized Home NodeB and an authorized Home NodeB, and relates to receiving a PLMN ID for a selected Home NodeB, wherein the UE establishes a connection with the selected Home NodeB. setting, related to tracking the PLMN ID associated with the selected Home Node B, and using the tracked PLMN ID to select between the first Home NodeB and the second Home NodeB, and to the tracked PLMN ID. connect with at least one of the first home NodeB or the second home NodeB based on the relating to evaluating a received scrambling code to identify a new or existing SIB, and using the evaluation to search for a NodeB; It may hold instructions related to using the evaluation to prohibit the search for the home NodeB, and so on.

Also related to the base station 302 receiving, from a user equipment (UE), a detection notification associated with a home node base station (home NodeB), wherein the detection notification identifies a home NodeB for connection, the NodeB related to organizing at least one home NodeB and at least one node base station (NodeB) within a hierarchical structure that prioritizes access to a user to a home NodeB over one of the hierarchical structures, wherein the It will be appreciated that it may include a memory holding instructions related to establishing a connection between the UE and the NodeB or at least one of the NodeBs. In addition, the memory is associated with transmitting a part of data related to a home NodeB system information block (SIB) and a part of data related to the NodeB SIB, and based on the part of the data, either the home NodeB or the NodeB related to establishing a connection between the at least one and the UE, and communicating a Public Land Mobile Network Identification (PLMN ID) associated with the Home NodeB and a PLMN ID associated with the NodeB, the PLMN ID associated with the Home NodeB and the Node related to establishing a connection between a UE and a home NodeB or at least one of the NodeBs based on one of the PLMN IDs associated with B, and assigning a location area code (LAC) to the home NodeB and LAC assignment to the NodeB hold instructions related to forwarding, establishing a connection between the UE and the home NodeB or at least one of the NodeBs based on one of the LAC assignment to the Home NodeB and the LAC assignment to the NodeB, etc. have. Additionally, the base station 302 may include a processor that may be utilized in connection with the execution of instructions (eg, instructions stored in memory, instructions obtained from another source, ...).

4-5, methodologies related to configuring a flush timer are shown. For simplicity of explanation, the methodologies are described and shown as a series of operations, but one or more operations may occur in other operations and/or concurrently with other operations and/or some operations may occur in other operations than those described and shown herein. It should be recognized and understood that, in accordance with embodiments, the methodologies are not limited by the order of operations. For example, one of ordinary skill in the art will understand and appreciate that a methodology may alternatively be represented as a series of interrelated states or events, such as in a state diagram. will be. Moreover, not all illustrated acts may be required to implement a methodology in accordance with one or more embodiments.

4, a methodology 400 that facilitates efficient selection for user equipment (UE) is shown, wherein the home node base station takes precedence over the node base station. At reference numeral 402, a hierarchical structure may be used to organize at least one base station (NodeB) and at least one home node base station (Home NodeB), wherein the hierarchical structure is a home NodeB rather than a NodeB. give priority to At reference numeral 404 , a portion of data related to a system information block (SIB) may be received from at least one NodeB and a home NodeB, the SIB causing a user equipment (UE) to discover the home NodeB. configured to enable. At reference numeral 406, a detection notification related to the Home NodeB may be forwarded to the macro network. At reference numeral 408 , at least one hierarchical structure or portion of data related to the SIB may be used to enable the UE to select between a home NodeB or a NodeB.

The methodology 400 also includes the steps of using a manual search through the UE to discover the Home NodeB, controlling the selection of the Home NodeB and the search for the Home NodeB via a mobility factor and a penalty timer, the Home Node receiving a first public land mobile network identification (PLMN ID) assignment for B and a second public land mobile network identification (PLMN ID) assignment for a macro network comprising a Node B, wherein the first PLMN ID assignment comprises: using the first PLMN ID assignment and the second PLMN ID assignment to select between the Home NodeB and the NodeB, overriding the second PLMN ID assignment, enabling the UE to search for the Home NodeB dynamically updating two or more equivalent PLMN IDs to receiving a PLMN ID for a selected home NodeB, wherein the UE establishes a connection with the selected home NodeB, and tracking a PLMN ID associated with the selected home NodeB, between a first home NodeB and a NodeB using the tracked PLMN ID to select from; connecting with at least one of a first home NodeB and a second home NodeB based on the tracked PLMN ID; receiving a scrambling code associated with the NodeB; , evaluating the received scrambling code to identify a new or existing SIB, using the evaluation to search for a NodeB, using the evaluation to inhibit a search for a home NodeB, etc. may include

Referring now to FIG. 5 , illustrated is a methodology that facilitates forwarding communication of a home node base station for a connection. At reference numeral 502, a detection notification related to a home node base station (Home NodeB) may be received from a user equipment (UE), the detection notification identifying the home NodeB for access. At 504 , at least one node base station (NodeB) and a home NodeB may be organized within a hierarchical structure that prioritizes access to the UE with the home NodeB over the NodeB. At reference numeral 506, a connection may be established between the UE and at least one of a NodeB or a home NodeB based on one of the hierarchical structures.

The methodology 500 also includes transmitting a portion of data associated with a Home NodeB System Information Block (SIB) and a portion of data associated with the NodeB SIB, either a NodeB or a Home NodeB based on the portion of the data. establishing a connection between at least one UE, passing a Public Land Mobile Network Identification (PLMN ID) associated with the Home NodeB and a PLMN ID associated with the NodeB, the PLMN ID associated with the Home NodeB and the NodeB; Establishing a connection with a UE with at least one of a Home NodeB or NodeB based on the associated PLMN ID, communicating a Location Area Code (LAC) assignment to the Home NodeB and an LAC assignment to the NodeB, the Home and establishing a connection between the UE and at least one of the NodeB or the home NodeB based on one of the LAC assignment to the NodeB and the LAC assignment to the NodeB.

6 is an illustration of a mobile device 600 that facilitates communicating information related to the detection of a home node base station in a wireless communication system. Mobile device 600 includes, for example, a receiver 602 that receives a signal from a receive antenna (not shown), and performs typical operations (eg, filtering, amplifying, downconverting (eg, filtering, amplifying, downconverting) the received signal. downconvert) and digitize the conditioned signal to obtain samples. The receiver 602 may include a demodulator 604 that demodulates the received symbols and may provide the received symbols to a processor 606 for channel estimation. The processor 606 controls one or more components of the mobile device 600 , a processor dedicated to analyzing information received by the receiver 602 and/or generating information for transmission by the transmitter 616 . It may be a processor, and/or a processor that analyzes information received by receiver 602 , generates information for transmission by transmitter 616 , and controls one or more components of mobile device 600 .

The mobile device 600 is operable in connection with the processor 606 and includes data to be transmitted, data received, information related to available channels, data related to an analyzed signal and/or interference strength, an assigned channel, It may further include a memory 608 capable of storing information related to power or rate, etc., and any other suitable information for estimating the channel and communicating over the channel. Memory 608 may additionally store algorithms and/or protocols related to estimating and/or using a channel (eg, performance-based, capacity-based, etc.).

The data storage device (eg, memory 608 ) described herein may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. By way of example, and not limitation, non-volatile memory includes, but is not limited to, read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable PROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) that acts as external cache memory. By way of example, RAM is Synchronous RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). It is available in many forms such as, but not limited to. Memory 608 of the subject systems and methods is intended to include, but is not limited to, these and any other suitable types of memory.

The processor 606 may further be operable to couple with at least one of the receiver module 610 or the selection module 612 . The receiver module 612 may receive a portion of data (eg, the portion of data may be SIB for Home NodeB, SIB for NodeB, PLMN ID for Home NodeB, and NodeB for NodeB). It may be at least one of PLMN ID, LAC for Home NodeB, or LAC for NodeB). The selection module 612 may identify a home NodeB for access or a NodeB for access based on a portion of the received data. Also, the selection module 612 may transmit the identified home Node B to the macro network.

Mobile device 600 may also include a modulator 614 and transmitter 616 that modulate and transmit signals, respectively, to, for example, a base station, another mobile device, or the like. Although shown as separate from the processor 606 , the receiver module 610 , the selection module 612 , the demodulator 604 , and/or the modulator 614 is the processor 606 or multiple processors (not shown). It should be understood that it may be part of

7 is an illustration of a system 700 that facilitates selection of a home node base station over a node base station in a wireless communication environment as described above. The system 700 includes a receiver 710 that receives signal(s) from one or more mobile devices 704 via multiple receive antennas 706 and one or more mobile devices 704 via a transmit antenna 708 . ) includes a base station 702 (eg, an access point, ...) that includes a transmitter 724 that transmits to Receiver 710 may receive information from receive antennas 706 and is operable in association with a demodulator 712 to demodulate the received information. The demodulated symbols are analyzed by a processor 714, which may be similar to the processor described above with respect to FIG. 6, wherein the processor 714 is associated with signal (eg, pilot) strength and/or interference strength. information, data to be transmitted to mobile device(s) 704 or data received from mobile device(s) 704 (or data to be transmitted/received from/to another base station (not shown)), and/or It is coupled with a memory 716 that stores any other suitable information related to implementing the various operations and functions presented herein.

In addition, the processor 714 may be connected to at least one of the receiver module 718 and the selection module 720 . The receiver module 718 may receive a portion of data (eg, the portion of data may be SIB for Home NodeB, SIB for NodeB, PLMN ID for Home NodeB, and NodeB for NodeB). It may be at least one of PLMN ID, LAC for Home NodeB, detected Home NodeB, or LAC for NodeB). The selection module 720 may identify at least one of a NodeB for access and a Home NodeB for access based on a part of the received data. In addition, the selection module 720 may transfer the identified home NodeB to the UE.

Further, although shown as separate from the processor 714, the receiver module 718, the selection module 720, the demodulator 712, and/or the modulator 722 is the processor 714 or multiple processors ( not shown).

8 illustrates an example wireless communication system 800 . For simplicity, the wireless communication system 800 depicts one base station 810 and one mobile device 850 . However, the system 800 may include more than one base station and/or more than one mobile device, with additional base stations and/or mobile devices being combined with the example base station 810 and mobile device 850 described below. It should be understood that they may be substantially similar or different. Further, the base station 810 and/or the mobile device 850 facilitate wireless communication between the systems ( FIGS. 1-3 and 6-7 ) and/or the methods ( FIGS. 4-5 ) described herein. It will be appreciated that the above systems and/or methods may be employed for this purpose.

At base station 810 , traffic data for multiple data streams is provided from a data source 812 to a transmit (TX) data processor 814 . According to an example, the data stream may be transmitted over each antenna. TX data processor 814 formats, codes, and interleaves the traffic data stream based on a particular coding scheme selected for the data stream providing the coded data.

The coded data for each data stream may be multiplexed with pilot data using orthogonal frequency division multiplexing (OFDM) techniques. Additionally or alternatively, the pilot symbols may be frequency division multiplexed (FDM), time division multiplexed (TDM), or code division multiplexed (CDM). The pilot data is typically a known data pattern that can be processed by known methods and used at the mobile device 850 to estimate the channel response. For each data stream, the multiplexed pilot and coded data are subjected to a specific modulation scheme selected for the data stream (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK)) to provide modulation symbols. , M-phase-shift modulation (MPSK), M-quadrature amplitude modulation (M-QAM), etc.) (eg symbol mapped). The data rate, coding, and modulation for each data stream may be determined by instructions performed or provided by the processor 830 .

Modulation symbols for the data streams may be provided to a TX MIMO processor 820 that may further process the modulation symbols (eg, for OFDM). Next, the TX MIMO processor 820_T Modulation symbol streams N_T transmitters (TMTR) 822a through 822t. In various embodiments, TX MIMO processor 820 applies beamforming weights to the antennas and symbols of the data streams, from which the symbol is transmitted.

Each transmitter 822 receives and processes each symbol stream to provide one or more analog signals, and further conditions (e.g., amplifies, filters, and upconvert). Next, N from transmitters 822a through 822t_T The modulated signals are_T transmitted from antennas 1024a to 1024t, respectively.

At the mobile device 850, the transmitted modulated signals are_R A signal received by and received by antennas 852a through 852r is provided to a respective receiver (RCVR) 854a through 854r. Each receiver 854 conditions (e.g., filters, amplifies, and downconverts) each received signal, digitizes the conditioned signal to provide samples, and generates a corresponding "received" symbol stream. The samples are further processed to provide

RX data processor 860 is N_T N based on a particular receiver processing technique to provide "detected" symbol streams._R N from receivers 854_R Receive and process received symbol streams. RX data processor 860 demodulates, deinterleaves, and decodes each detected symbol stream to recover traffic data for the data stream. The processing by RX data processor 860 is complementary to processing performed by TX MIMO processor 820 and TX data processor 814 at base station 810 .

Processor 870 periodically determines which pre-coded matrix to use (discussed below). In addition, processor 870 formulates a reverse link message having a matrix index portion and a rank value portion.

The reverse link message may include various types of information about the communication link and/or the received data stream. The reverse link message is processed by a TX data processor 838 that also receives multiple data streams from a data source 836, modulated by a modulator 880, conditioned by transmitters 854a through 854r, transmitted back by the transmitter system 810 .

At transmitter system 810 , modulated signals from receiver system 850 are received by antennas 824 , conditioned by receivers 822 , modulated by modulator 840 , and an RX data processor ( 842) to extract the reverse link message transmitted by the receiver system 850. Processor 830 then processes the extracted message to determine which pre-coded metrics to use to determine beamforming weights.

Processors 830 and 870 may instruct (eg, control, coordinate, manage, etc.) operations at base station 810 and mobile device 850 , respectively. Each of the processors 830 and 870 may be associated with a memory 832 and 870 that stores program codes and data. Processors 830 and 870 may also perform computations to derive frequency and impulse response estimates for the uplink and downlink.

It should be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may include one or more application specific semiconductors (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( FPGAs), processors, controllers, micro-controllers, microprocessors, or other electronic units designed to perform the functions described herein or a combination thereof.

When the above embodiments are implemented in software, firmware, middleware or microcode, program code or code segments, they may be stored in a machine-readable medium such as a storage component. A code segment may represent a procedure, function, subprogram, program, routine, subroutine, module, software package, class, or any combination of instructions, data structures, or program statements. A code segment may be coupled with another code segment or hardware circuit by receiving and/or passing information, data, arguments, parameters, or memory contents. Information, arguments, parameters, data, etc. may be passed, forwarded, or transmitted using any suitable means including memory sharing, message passing, token passing, network transfer, and the like.

For a software implementation, the techniques described herein may be implemented via modules (eg, procedures, functions, etc.) that perform the functions described herein. The software codes may be stored in memory units and executed by processors. The memory unit may be implemented inside the processor or external to the processor. In this case, the memory unit may be communicatively connected to the processor through various means as known in the art.

Referring to FIG. 9, a system 900 that facilitates efficient selection for user equipment (UE) is shown, in which a home node base station takes precedence over a node base station. For example, system 900 may exist at least in part within a base station, user equipment (UE), mobile device, and the like. System 900 may be represented as including functional blocks, which may be functional blocks representing functions implemented by a processor, software, or a combination thereof (eg, firmware). . System 900 may include a logical grouping 902 of electrical components that may operate adjacently. The logical grouping 902 may include an electrical component for receiving ( 904 ) a portion of data associated with at least one of a node base station (NodeB) or a home node base station (home NodeB) associated with a macro network. Further, the logical grouping 902 may include an electrical component for evaluating a portion of the data to identify a priority between the home NodeB and the NodeB (906). Furthermore, the logical grouping 902 may include an electrical component for selecting a home NodeB for UE connection over a NodeB based on the evaluation 908 (908). Logical grouping 902 based on the selection may include electrical components for connecting the UE to at least one of a home NodeB or a NodeB (910). Additionally, system 900 can include a memory 912 that retains instructions for executing functions associated with electrical components 904 , 906 , 908 and 910 . Although components are depicted as being external to memory 912 , it should be understood that one or more electrical components 904 , 906 , 908 , and 910 may reside within memory 912 .

Turning to FIG. 10 , shown is a system 1000 that may request UPH measurements from a UE at a reduced measurement period during E-DCH transmission. For example, system 1000 may reside within a base station, user equipment (UE), mobile device, or the like. As depicted, system 1000 includes functional blocks that may represent functions implemented by a processor, software, or combination thereof (eg, firmware). System 1000 includes a logical grouping 1002 of electrical components that facilitate cell search and selection associated with home NodeB. The logical grouping 1002 may include an electrical component for receiving a notification from the first UE relating to the detected home node base station (Home NodeB) ( 1004 ). Also, the logical grouping 1002 may include an electrical component for transmitting information related to the detected home Node B to the second UE ( 1006 ). In addition, the logical grouping 1002 may include an electrical component for leveraging a portion of the data associated with the detected home NodeB to differentiate between the NodeB and the home NodeB ( 1008 ). The logical grouping 1002 may include an electrical component for enabling a UE to connect to at least one of a NodeB or a home NodeB based on the portion of the data (1010). Additionally, system 1000 may include a memory 1012 that retains instructions for executing functions associated with electrical components 1004 , 1006 , 1008 , and 1010 . Although the electrical components are shown as being external to the memory 1012 , it will be appreciated that the electrical components 1004 , 1006 , 1008 and 1010 may be internal to the memory 1012 .

The various illustrative logics, logic blocks, modules, and circuits described in connection with the embodiments disclosed herein are a general purpose processor, digital signal processor (DSP), application specific semiconductor (ASIC), field programmable gate array (FPGA) or via other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination designed to implement the functions described herein. A general purpose processor may be a microprocessor, and in the alternative, such a processor may be a conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, such as, for example, a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in combination with a DSP core, or a combination of such configurations. Additionally, at least one processor may include one or more modules operable to perform one or more operations and/or steps described above.

Moreover, steps and/or operations of an algorithm or method described in connection with the aspects disclosed herein may be implemented directly in hardware, in a software module executed by a processor, or by a combination of the two. Software modules include random access memory (RAM), flash memory, read-only memory (ROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), registers, hard disks, portable disks, compact disk ROMs ( CD-ROM), or any form of known storage medium. An exemplary storage medium is coupled to the processor, such that the processor reads information from, and writes information to, the storage medium. Alternatively, the storage medium may be a component of a processor. Also, such a processor and a storage medium reside in the ASIC. Additionally, the ASIC may reside in the user terminal. Alternatively, the processor and storage medium may exist as discrete components in the user terminal. Additionally, in some aspects, the steps and/or operations of a method or algorithm are one or any combination of codes and/or instructions on a computer-readable medium, which may be incorporated into a machine-readable medium and/or a computer program product. It may reside as a set or a set.

In one or more aspects, the functions described may be implemented through hardware, software, firmware, or a combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage medium may be any available medium that can be accessed by a general purpose computer or a special purpose computer. By way of example, such computer readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage medium, magnetic disk storage medium or other magnetic storage devices, or required program code means in the form of instructions or data structures. including, but not limited to, any other medium that can be used for storage and that can be accessed by a computer. Also, any connection may be represented as a computer-readable medium. For example, if the Software is transmitted from a website, server, or other remote source via coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, such Coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave may be included within the definition of this medium. Disks and discs as used herein include compact discs (CDs), laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where the disk reproduces data magnetically, whereas the disc reproduces data optically through a laser. play data with Combinations of the above should also be included within the scope of computer-readable media.

While the foregoing disclosure discusses exemplary aspects and/or embodiments, various changes and modifications may be made without departing from the scope of the described aspects and/or embodiments as defined by the appended claims. It should be noted that this can be done here. Furthermore, even though elements of the described aspects and/or embodiments are described and claimed in the singular, they are contemplated in the plural unless expressly limited to the singular. Additionally, all or part of any aspect and/or embodiment may be utilized with all or part of any other aspect and/or embodiment unless indicated otherwise.