Untitled record

Full description

Sister Ar'a's background

This request relates to wireless communication systems, and more specifically to signal formats with varying signal bandwidth and an accompanying configuration of the means of transmission and reception to maintain power consumption in mobile means and base stations.

stations 5

The demand for wireless data services continues to increase exponentially. As demand for data increases, technologies capable of delivering higher data rates to mobile devices remain of interest. One way to deliver higher data rates is to increase the spectral bandwidth available for wireless communication systems

.communication systems 10

This reflects the tendency to use more bandwidth than existing types of generation sharing project networks

Long Term Evaluation (GPP3) 3rd Generation Partnership Project

LTE Evolution (LTE) up to 100 megahertz (MHz) is available for communications. Moreover, it is possible to use future networks, such as fifth generation networks

<p dir="rtl">15 (or 5G), several hundred megahertz or more in an attempt to meet future demand for data services</p>

.data services

As the system bandwidth increases, data transfer can be increased almost proportionally without incurring a similarly proportional increase in control costs. Hence, in future time division multiplexing systems time

control and data division multiplex

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channels, there can be patterns where it can be inefficient for control channels to occupy too much bandwidth as data channels. There are limitations to both because unnecessary spectral resources can be used that could be better used for other purposes and because mobile devices can be configured to display a larger bandwidth than required, thus wasting energy resources. Subsequently

<p dir="rtl">5 There is a need for effectively multiplexed control and data channels with increased available bandwidth in wireless communication systems.</p>

US Patent No. 7,436,809 relates to a communication system, communication method, base station, and mobile station applicable to an intervehicular communication system for transmitting multimedia data, for example, from the base station to a vehicle 10 and vice versa.

US Patent No. 20130230013 relates to a wireless communication system and, specifically, to a method and apparatus for transmitting a control channel and a data channel in a wireless communication system.

HUAWEI, “Energy saving techniques to support low load related document

scenarios", 3GPP DRAFT; R1-101084 ENERGY SAVINGS, 3RD

GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE 15

COMPETENCE CENTER ; 650, ROUTE DES LUCIOLES ; F-06921

SOPHIA-ANTIPOLIS CEDEX; FRANCE, vol. RAN WG1, no. San

Francisco provides methods, devices, and computer software products for implementing dynamic bandwidth switching between control signals and data signals of 20 different bandwidths.

European Patent No. 2077634 relates to a radio base station device, an experimental transmission thereof, and a terminal device, namely, a radio base station device that transmits subframes including guides, a method for transmitting guides thereto, and a terminal device in the radio transmission zone of the downlink.

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General description of the invention

In one aspect of the disclosure, a method for wireless communication includes transmitting a control signal to a mobile medium using a first bandwidth, and transmitting a data signal to the mobile medium using a second bandwidth wider than the first bandwidth, wherein the control signal and the data signal are transmitted over a carrier frequency

<p dir="rtl">5 single carrier frequency signal.</p>

In a further aspect of the disclosure, a method for wireless communication in a mobile medium includes receiving a control signal having a first bandwidth, and receiving a data signal having a second bandwidth wider than the first bandwidth, wherein the control signal and the data signal are received over a signal carrier frequency.

In an additional aspect of the disclosure, the product includes computer software for wireless communications in a non-communicating medium

<p dir="rtl">10 A computer-readable timer with a program code recorded on it, the program code including code to cause a transmitter to send a control signal to a device using a first bandwidth. The program code also includes code to cause the sender to send a data signal to the medium using a second bandwidth wider than the first, whereby the control signal and data signal are transmitted over a single carrier frequency.</p>

<p dir="rtl">15 In a further aspect of the disclosure, a computer software product for wireless communications includes a non-transitory computer readable medium having a program code recorded thereon, the program code including code to cause the receiver to receive a control signal having a first bandwidth. The program code also includes code to cause the receiver to receive a data signal that has a second bandwidth wider than the first, where the control signal and data signal are received across a signal carrier frequency.</p>

<p dir="rtl">20 In a further aspect of the disclosure, a mobile device includes a front adjustable radio frequency terminal designed to receive a control signal having a first bandwidth, and to receive a data signal having a second bandwidth wider than the first, wherein the control signal and the data signal are received Cross frequency signal carrier.</p>

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In a further aspect of the disclosure, a wireless communication device includes an amplifier, an analog-to-digital converter (ADC), an analog filter coupled between the amplifier and the ADC, and a control processor coupled to the amplifier, ADC, and analog filter. The control processor is designed to respond To receive control information from a control signal that has a first bandwidth, adjust the amplifier bandwidth

<p dir="rtl">5 The ADC is set to a second bandwidth wider than the first bandwidth, and the ADC sampling rate is adjusted according to the second bandwidth.</p>

In a further aspect of the disclosure, a wireless communication device includes a control processor designed to interface with an RF front end, modifying the RF front end to receive a control signal having a first bandwidth, and modifying the RF front end to receive a data signal having a second bandwidth wider than the first bandwidth, wherein the 10 Receive control signal and data signal via signal carrier frequency.

Brief explanation of the drawings

Figure 1 illustrates a wireless network, according to various features of the present disclosure.

Figure 2 is a high-level framework diagram of a receiver adjustable according to various features of the present disclosure.

<p dir="rtl">15 Figure 3 shows a frame formulation and corresponding power consumption of an RF front end during according to different features of the present disclosure.</p>

Figure 4 is a flow map illustrating an exemplary method of receiving control signals and data according to different features of the present disclosure.

Figure 5 shows another frame formulation and the corresponding power consumption of an RF front end during reception

<p dir="rtl">20 The framework formulation described in accordance with various aspects of the present disclosure.</p>

Figure 6 is a flow map illustrating another exemplary method of receiving control signals and data according to different features of the present disclosure.

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Figure 7 shows an exemplary framework and signal structure of a frequency division multiplexing (FDM) system according to different features of the present disclosure.

Figure 8 is a protocol diagram illustrating transmissions between a base station and user equipments of an FDM system according to various features of the present disclosure.

<p dir="rtl">5 Figure 9 is a protocol diagram illustrating the attributes of a signal between a UE and a base station to support dynamic bandwidth switching according to different attributes of the present disclosure.</p>

Figure 10 is a block diagram of a transmitting and receiving means according to different features of the present disclosure.

Figures 11-16 illustrate additional embodiments of a framework formulation according to different features of the present disclosure.

<p dir="rtl">10 Detailed description:</p>

The detailed description shown below, in conjunction with the attached drawings, is intended to be considered as a description of the various designs and is not intended to represent a single design that can implement the concepts described herein. The detailed description includes special details for the purpose of providing a complete understanding of the different concepts. However, it will become clear to those skilled in the art that these concepts can be practiced

<p dir="rtl">15 Without those special details. In some cases, well-known combinations and components are presented as a box diagram to avoid obscuring concepts.</p>

The techniques described in this document can be used for different wireless networks such as CDMA, SC-FDMA, OFDMA, FDMA, TDMA and others. The terms "network" and "system" are often used interchangeably. A CDMA network can implement ardo technology such as Universal

<p dir="rtl">20 Terrestrial Radio Access (UTRA), cdma2000, and so on. UTRA includes WCDMA (Wideband CDMA) and other variants of CDMA. CDMA2000 covers the IS-95, IS-2000 and IS-856 standards. A TDMA network can implement radio technology such as GTS Mobile (GSM). OFDMA network can implement radio technology such as Evolved</p>

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IEEE 802.11 (Wi-Fi), Ultra Mobile Broadband (UMB), UTRA (E-UTRA)

Flash-OFDMA, IEEE 802.20, IEEE 802.16 (WiMAX), and so on. be UTRA

E-UTRA is part of the Universal Mobile Telecommunications System (UMTS). It is 3GPP

They are new versions (LTE-A) LTE-Advanced and (LTE) Long Term Evolution

<p dir="rtl">5 For UMTS E-UTRA is used. LTE-A, LTE, UMTS, E-UTRA, UTRA and GSM are described in documentation from an organization called 3GPP (3rd Generation Partnership Project). CDMA2000 and UMB are described in documentation from an organization called 3rd Generation</p>

<p dir="rtl">2 3GPP2 (Partnership Project). The technologies described in this document can be used for the wireless networking and radio technologies mentioned above in addition to the wireless networking and radio technologies</p>

<p dir="rtl">10 Others, such as the next generation network (for example, 5G Generation).</p>

This disclosure recognizes that as the available system bandwidth increases, the bandwidth used by the data signals can be increased (and thus the data rate can be increased) without a corresponding increase in the control channel signal. Frame formats using narrowband control signals and wideband data signals are disclosed. Broad. Frame formats provide adjustments to the receivers of the mobile device to receive control signals

<p dir="rtl">15 at one bandwidth and data signals at wider bandwidths. The receiver can use a low-power system to receive a control signal and then increase the bandwidth and power consumption to receive a data signal. An interval or transition period can be introduced between a control signal and a data signal to allow the receiver time to be adjusted to different signal bandwidths.</p>

Power consumption in wireless communications receiver bands is as wide as the receiver signal bandwidth. Disclosure 20 generally relates to wireless communication networks that use control signals and data signals to display

Different scope. Receivers are introduced in these networks to take advantage of and adjust different bandwidths to reduce power consumption. For example, power consumption in wireless devices can be reduced because control signals can occupy a smaller bandwidth than in conventional systems.

Figure 1 shows a wireless network 100, according to different detection features. 25 The wireless network 100 can be a next generation network (e.g., 5G).

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The 100 wireless communication network includes a number of 110 base stations. Base station 110 can include an optimized B Node in the context of LTE. A base station may also be referred to as a base transceiver station or access point.

5 The base stations 110 communicate with user equipments 120 as shown. The UE 120 can communicate with a base station 110 via an uplink and a downlink. Downlink (or forward link) refers to the communication link from a base station 110 to a UE 120 Uplink (or reverse link) refers to the communication link from UE 120 to base station 110.

<p dir="rtl">10 120 UEs can be deployed throughout the wireless network 100, and each 120 UEs can be fixed or mobile. UE can also be referred to as terminal, mobile station, subscriber unit, and so on. 120 UE can be a cell phone, smartphone, personal digital assistant, wireless medium, laptop, tablet, and so on. The wireless network 100 is one example of a network to which different features of the disclosure apply. Other examples are WLANs.</p>

<p dir="rtl">15 Figure 2 is a high-level frame diagram of an adjustable receiver 200. The adjustable receiver 200 may be included in a 120 UE. The adjustable receiver 200 can include one or more antennas 210. If the adjustable receiver 200 includes multiple antennas 210, any technology can be used to connect multiple inputs to multiple outputs (MIMO). For simplicity, we will concentrate</p>

<p dir="rtl">20 The description applies to a single antenna 210A and its associated components, with the understanding that the description applies to each antenna and its associated components.</p>

In that example, the adjustable receiver 200 includes an RF front terminal 212a. In this example, the RF front end 212a includes an amplifier 215a, a mixer 220a, an analog filter 225a, and an analog-to-digital converter 230a in connection with the antenna

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210a as shown. The 200 adjustable receiver uses a zero-mid frequency structure

Intermediate frequency (IF) whereby a receiver signal at the antenna 210a is amplified by the amplifier 215a and then down-converted directly to baseband by a mixer 220a in conjunction with a local oscillator 240 (LO). The radio frequency (RF) amplifier, e.g.

<p dir="rtl">5 An example of an amplifier 215A is a low-noise amplifier (LNA).</p>

The 225 analog filter can be a low-pass filter using an adjustable bandwidth. The receiver signal is typically the sum of a desired data carry signal, interface, and noise. In some modes, the bandwidth of the analog filter 10 225A is adjusted to suppress a borrowed signal, allowing the desired signal to pass with relatively low destruction.

to an analog-to-digital converter (ADC) 230, and cross-band interference and noise attenuation.

The 230 ADC receives an analog signal at its inputs and samples it and converts the analog signal into an image

Digital to produce digital output. The sampling rate of a 230 ADC is sufficient to suppress or sufficiently limit a borrowing signal and is generally at least twice the highest frequency component of the signal.

Input. The sampling rate of the 230 ADC can be adjustable to achieve the desired sampling rate according to signals with different input bandwidths.

The 250 adjustable receiver also includes a baseband processor

245 baseband processor. The baseband processor 245 receives signals from each of the receiving chains 20 and performs time demodulation and decoding (as needed) of the received signals.

The adjustable receiver also includes a 255 control processor. The control processor 255 may direct the operation of the adjustable receiver 200. The control processor 255 generates one or more command signals (represented by dashed lines) intended for amplifiers 215, analog filters 225, ADCs 230, and/or baseband processor 245. The control processor 255 may direct To indicate commands

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Also included in this document are internal control signals to differentiate the label from uplink and downlink control signals transmitted over wireless channels.

The adjustable receiver 200 also includes a memory 250. The memory 250 can be any pre-electronic component for storing information and/or instructions. For example, it could include:

<p dir="rtl">5 Memory 250 Random access memory (RAM), read-only memory, flash memory devices in RAM, optical storage media, erasable programmable EPROM (read-only memory). only memory), registers, or combinations thereof. In one embodiment, memory 250 includes a computer-readable non-temporary medium.</p>

<p dir="rtl">10 The instructions or code may be stored in memory 250 where they are executable by the baseband processor 245 and/or the control processor 255. The expressions “instruction” and “code” should be interpreted broadly to include any type of computer-readable report(s). For example, the terms "instructions" and "code" can refer to one or more programs, routines, subroutines, functions, procedures, and so on. "Instructions" and "code" can include a report A vision by</p>

<p dir="rtl">15 One or multiple computer-readable reports.</p>

The control processor 255 may be implemented using a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other logic device capable of For programming, discrete gate or transistor logic, 20 discrete hardware components or any combination thereof designed to produce the functions described herein may be implemented

Control processor 255 is also a combination of computation devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other body.

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Amplifiers 215 , analog filters 225 , and/or ADCs 230 can be components with adjustable parameters such that the adjustable receiver 200 is able to be configured to receive signals of different bandwidths in such a way that the power consumption varies according to the bandwidth. Power consumption generally decreases as the bandwidth decreases. For example, 5 the preamplifiers 215 and analog filters 225 can have bandwidths that are adjustable, with

Adjusted bandwidths according to the corresponding command signals. Furthermore, the ADCs 230 can have an adjustable sample selection rate, with sample selection rates adjusted according to the corresponding command signal.

10

15

Consider a typical scenario in which the adjustable receiver expects 200 signals with a relatively narrow range followed by a signal with a relatively wide range. Before receiving the narrowband signal, the control processor 255 can adjust the bandwidths of the amplifiers 215 and analog filters 225 accordingly, and can adjust the sampling rate of the ADCs 230 accordingly. After receiving the narrowband signal but before receiving the wideband signal, the control processor 255 can increase the bandwidths of the amplifiers 215 and analog filters 225 to accommodate the wider bandwidth, and the sampling rate of the ADCs can also increase to accommodate the wider bandwidth. The wider the bandwidth of the signal to be received, the more power is required to process the signal.

It is understood that the zero IF structure of Figure 2 is one of many receiver structures capable of being modified to receive signals of different bandwidths. Many different receiver architectures according to the present disclosure may employ amplifiers, filters, and ADCs in various combinations that can be modified.

She changed her mind.

<p dir="rtl">20 This disclosure is directed to any type of modulation scheme, but OFDM (orthogonal frequency division multiplexing) is used as analog modulation. OFDM is a flexible modulation scheme that provides modulation of the bandwidth of the transmitted signal in a forward manner.</p>

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OFDM time modulation uses a number of sub-load elements. The spacing between sub-load elements can be fixed, and the total number of sub-load elements used can be changed based on the signal bandwidth. For example, the spacing between sub-load elements can be 4 kHz and the number of sub-load elements can be 100, in which case the width of 5 signal bands is approximately 400 kHz (the number of sub-load elements multiplied by the spacing between

There are other well-known methods for measuring the bandwidth of OFDM signals, such as measuring the frequency spacing between the sub-load elements.

OFDM is time modulated using a fast Fourier transform (FFT), and the FFT can be scaled according to the number of load sub-elements. Therefore, the domain processor can include

The basic FFT is at least 245 adjustable for each antenna to configure time demodulation to different signal bandwidths. The control processor 255 can control the baseband processor 245 to indicate the FFT size or other variables to configure the baseband processor 245 to OFDM signals with variables that vary according to the bandwidth. After modulating an OFDM signal, 15 can be transmitted using a single separate HF carrier, sometimes referred to as an RF carrier. can be divided

Time frequency sources available to source frames. Each source frame can cover N sub-carry elements (e.g., 12 sub-carry elements) in one OFDM symbol duration.

The operation of the adjustable receiver 200 is also described by reference to Figure 3. Figure 3 illustrates

Frame formula 310 and the corresponding power consumption 360 of a typical RF front end, such as an RF terminal

<p dir="rtl">20 Front 211a, while receiving the framework formula shown. Frame format 310 is a TDM format in which time is divided into transmission time intervals (TTIs). Control signals and data signals are double-time split within TTI. Figure 3 shows a typical sequence of signals transmitted under this format Framework 310.</p>

TTI can indicate the transmission time on the radio link. TTI can be related to data frame size

<p dir="rtl">25 Which passes from the higher network layers to the radio link layer. In some models, codes are installed</p>

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Duration data, such as OFDM symbols, has a predetermined number of data symbol periods during each TTI. For example, each TTI can be any number of code periods, such as 8, 10, or 12 code periods, as examples.

In wireless communication systems, a downlink control signal may include information to the UE regarding 5 initiating, saving, or terminating a data cycle. For example, a downlink control signal in the TTI can provide information to the UE about whether there is a next downlink data signal in the TTI, and, if so, the control signal can indicate the bandwidth of the data signal.

The frame formulation 310 is designed to reduce power consumption at UE receivers. A control signal 315 is sent at the beginning of each TTI. The control signal uses a relatively narrow bandwidth by comparison

<p dir="rtl">10 With data signals. The bandwidth of control signals is sufficient to transmit control information to the UE(s).</p>

established, it is not necessary to use the larger bandwidths used for data signals for the smallest relative amount of control information. In TTI, the control signal indicates whether there is a data signal following the control signal. In some embodiments, the bandwidth used for the data signal is variable, in each case the control signal also indicates the bandwidth used for the next data signal.

<p dir="rtl">15 Alternatively, in some embodiments, the data signals typically occupy a specified bandwidth (such as the full bandwidth), in each case the bandwidth of the data signal is understood or implied and there is no need for a control signal to convey the bandwidth information.</p>

Both transmitted signals are transmitted using the FC signal carrier frequency. The use of a single carrying element simplifies receivers compared to systems using a carrier accumulation. Requires a pregnant woman to leave behind

<p dir="rtl">20 Typically, multiple Loss are used, which can use the signal schemes described in this document</p>

LO only one. However, the methods described in the present disclosure can also be applied to multiple carrier replicates.

The frame formulas described herein, such as frame formula 310, may apply regardless of the number of antennas used in the transmitting body or receiving body. For example, in

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SISO system, the signal is sent from the transmitting antenna and received at the receiving antenna. As another example, in a MIMO system, the frame formats shown are transmitted from at least one antenna. Each antenna in the antenna array can transmit the same or a different pilot structure. In one embodiment, the frame format shown 310 will be received by a receiving antenna 5, and may be part of a composite signal representing the set of signals from the antenna set.

In this example, at TTI number (n) TTIn, the control signal 315 indicates to the designated UE that there is no subsequent data in the TTI. An adjustable receiver 200 may be used to receive the control signal 315. After the adjustable receiver 200 receives the control signal 315 in the TTIn, Components can be stopped

<p dir="rtl">10 RF front end 215, 225, and 230 are temporarily shut down or shut down by the control processor 255, placing the adjustable receiver 200 into a “micro-sleep” state. For example, a switch may be placed between a component, such as an amplifier 215 , analog filter 225 , and/or ADC 230 , and its power supply, with the switch opened for a period of time to turn off power to the components. Another example of "micro-sleep" is to place a component in an ideal state in which it receives a low amount of power to operate at low power.</p>

<p dir="rtl">15 The RF power consumption 360 of an RF front end, such as the RF front end 211a of the adjustable receiver 200, is shown in Figure 3 while receiving various signals. For example, during reception of the control signal 315 at TTIn, the power consumption is represented by 365. After determining that there is no data, the adjustable receiver 200 transitions to a microsleep state, and the power consumption during that transition is represented by 370. The decrease in power consumption is represented by Capacity decreases linearly</p>

<p dir="rtl">20 Over time, the actual decline in power consumption can be non-linear but decrease over time nonetheless. During the period in TTIn after microsleep, the RF power consumption is much lower than when receiving a signal due to the switching off of the amplifiers 215, analog filters 225, and ADCs 230.</p>

At a short time interval before 1+TTIn, the control processor 255 informs the amplifiers 215, filters

<p dir="rtl">25 The analog ADCs 225 and 230 initiate operation before receiving the control signal 315 during 1+TTIn. Complete</p>

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The power consumption during that transition is represented by 375, and the power consumption during reception of the control signal 315 at 1+TTIn is represented by 380. Components in the receiver 200 that are turned off require a startup time period sufficient to receive a signal.

In this example, control signal 315 follows data signal 325 at 1+TTIn. Removes the range handler

<p dir="rtl">5 The basic 245 time modulates the control signal 315 and provides control signal information to the control processor 255. The information in the control signal 315 signals the control processor 255 that a data signal will follow. In some scenarios, the data signal 325 is of a wider bandwidth than the control signal 315. In response, the control processor 255 tells the amplifiers 215, analog filters 225, and ADCs 230 to adjust appropriately to the wider bandwidth. Hence, it is increased</p>

<p dir="rtl">10 The bandwidths of the preamplifiers are 215 and the analog filters are 225, and the sampling rate of the 230 ADCs is also increased. In some embodiments, the control processor 255 also tells the baseband processor 245 to configure accordingly for the increased bandwidth. For example, to remove time modulation of OFDM signals, the control processor 255 instructs the baseband processor 245 to adjust the FFT size or other variables appropriately so that the time modulation of the incoming data signal is removed.</p>

<p dir="rtl">15 The framework formulation 310 can also provide frequency division FDM multiplexing between users. For example, the data signal 325 can be split up the B-bandwidth in the frequency band using different parts of the B-bandwidth assigned to different users. The RF end can remain front 212 to a user suitably adjusted to the B-band width with the extraction and demodulation of the desired portion digitally executed in the B-band</p>

<p dir="rtl">20 Frequency using OFDM technologies.</p>

In one embodiment, the control signal 315 indicates not only that data will be tracked but also indicates the bandwidth of the data signal 325. In that case the control processor 255 determines the bandwidth. In other embodiments, the data signal 325 typically occupies the same bandwidth, as the entire available bandwidth, in which case the data signal bandwidth can be understood to be a certain value

<p dir="rtl">25 There may be no need to include a flag in the control signal. If a range width is allowed to change</p>

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For data signals, the adjustable receiver components 200 are modulated from data signal to data signal for reception using the full bandwidth sufficient to cover the bandwidth of the data signal of interest, rather than always adjusting for reception using the entire available system bandwidth.

There is a latency 320 between the control channel 315 and the data signal 325 to allow the receiver to be adjustable

<p dir="rtl">5 200 by adjusting to different bandwidth. The transition period 320 can be referred to as a conversion period because</p>

Future 200 switches from one bandwidth to another. The conversion period can be quantized to integer code periods, such as OFDM code periods. The power consumption during this transition period 320 is represented by 385, and the power consumption during reception of the data signal 325 is represented by 390.

There is a transition period 330 between the data signal 325 and the next control signal 315 in 2+TTIn. Allow

<p dir="rtl">10 The transition period 330 of the adjustable receiver time 200 transitions to a smaller bandwidth of the control signal 315. The power consumed during the transition period 330 is represented by 395.</p>

Some conventional TDM systems typically do not include transition periods 320 and 330 to allow receiver modification. One reason is that in some conventional TDM systems the control signal is transmitted using the same bandwidth as the data signal so receivers do not need to switch between

<p dir="rtl">15 Different bandwidths. Therefore, the power consumed during the transition periods represents 320 and 330 GHz of power for the signal scheme in Figure 3 compared to some conventional systems. However, there are significant power savings during the reception of the control signal 315 in the framework formulation shown in Figure 3. The power saving includes the difference in power between the RF power consumed during the reception of the data signal and the RF power consumed during the reception of the control signal. The corresponding energy savings are calculated by area under the curves</p>

<p dir="rtl">20 Ability. Under the same conditions, the overall energy saving exceeds the energy saving, as in that case the frame formulation and the corresponding 200 adjustable receiver extend the battery life compared to conventional TDM systems.</p>

Figure 4 is a flow map illustrating an exemplary method 400 for receiving control signals and data. Method 400 can be implemented in the adjustable receiver 200, and method 400 is described

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Referring to the adjustable receiver 200. Signals received in method 400 are transmitted by a base station 110 or other type of access point. Instructions or code may be stored in memory 250 that is executable by the control processor 255 in the adjustable receiver 200 of Figure 2 to implement the method 400.

<p dir="rtl">5 The method 400 begins in frame 410. In frame 410 a narrowband control signal is received and processed by the adjustable receiver 200. The control signal is referred to as a narrowband control signal because its bandwidth is typically smaller than that of data signals, as shown in the signal diagram in Figure 3. In frame 415, a determination is made whether a data signal follows the current TTI control signal. The control signal will contain that information, and the modulation is removed</p>

<p dir="rtl">10 The timing of the control signal to extract that information.</p>

If it is determined that there are no data signals following the current TTI control signal, the method advances to frame 440, whereby the power available to certain RF front-end components, such as amplifiers 215 , analog filters 225 , and/or ADCs 230 , can be reduced to place the components In a delicate state of slumber. The control processor 255 can send signals to components in the receiver 200 for control

<p dir="rtl">15 In its condition as previously described. After a period of time, in frame 445 the components are instructed to provide power or to "stand up" to prepare to receive another control signal in frame 410. The receiver 200 can wait until just before the start of the next TTI to request the RF front end components to stand up.</p>

If it is determined in frame 415 that a data signal follows the control signal, the method advances to frame 420. In frame 420, an RF front end 211a is modulated to the receiver 200 to receive the data signal.

<p dir="rtl">20 As described previously, the control signal can contain information about the expected bandwidth of the data signal. Alternatively, the bandwidth of a data signal can be understood as a specific value. In another case, the anterior RF end is modified. The control processor 255 controls the adjustment. The baseband processor 245 can also be modified.</p>

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Then in frame 425 the data signal is received and processed. After receiving the data signal in frame 425, the RF front end is modified to receive a control signal in frame 430 and the method returns to frame 410 to begin again. The method 400 continues as desired for a communication cycle. In some embodiments, a control signal is transmitted at the beginning of each TTI and without additional control signals being transmitted within each

<p dir="rtl">5 TTI. In other embodiments, at least one additional control signal is transmitted at each TTI. For example, there could be a control signal at the beginning of the TTI and another control signal in the middle of the TTI.</p>

Figure 5 shows another frame format 510 and the power consumption of an RF front end 560 while receiving the frame format shown. Frame format 510 is a TDM format in which time is divided into transmission time intervals (TTIs) and control signals and data signals are multiplied by 10 by TDM. Figure 5 shows a signal sequence transmitted within that frame format 510.

The signal sequence transmitted in frame format 510 differs from frame format 310 in that if a data signal is transmitted, the next control signal is transmitted using the bandwidth of the data signal such that there is no switching time or conversion period to modulate the RF front end. Since there is no need to modify the RF front end, a data signal can be transmitted up to the TTI limits. Signal Formula 15 trades the potential for energy savings with a more narrow-band control signal in return for the benefit of the power to be removed

The stopping time of the signal due to switching. Therefore, the signal scheme uses both narrowband and wideband control signals, depending on which control signal follows a data signal.

The similarities and differences between the signal diagram shown in Figure 5 and the signal diagram in Figure 3 can be understood by referring to Figure 6. Figure 6 is a flow map illustrating a typical method 20 600 of receiving control and data signals. In Figure 6, frames 410-425, 440,

<p dir="rtl">445 are similar to the corresponding frames in Figure 4.</p>

After receiving a data signal in frame 425, method 600 advances to frame 610 where wide range control signals are received. A control signal can be referred to as a wide-band control signal because the bandwidth is similar to the previously received data signal, and the bandwidth of the data signal is

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Typically larger than the bandwidth of the narrowband control signal. The control signal 515 in the frame format 510 of Figure 5 is a typical narrowband control signal, and the control signal 530 is a typical wideband control signal. The narrowband control signal 515 follows a latency 520 that allows an RF front end to adjust to receive the data signal 525. No latency 5 is required between the data signal 525 and the control signal 530 because the bandwidths are similar.

As discussed previously in relation to Figure 3, framework formulation 510 can also provide FDM between users. For example, the B-bandwidth data signal 525 may be divided in the frequency domain with different portions of the B-bandwidth assigned to different users. Likewise, control signal 530 may be similarly segmented. The RF front end 212 of a user 10 will remain suitably modulated to the B-band width while extracting and demodulating the time modulation of the desired portion.

Which is implemented digitally in the frequency range using OFDM techniques.

Then under Resolution 615, a determination is made whether a data signal follows the TTI wideband control signal. If the data follows the wideband control signal, in one embodiment the data is transmitted at the same bandwidth as the control signal, so there is no need to modulate the RF front end 15, and the data signal is received in frame 620. In another embodiment, the data is generally transmitted at a bandwidth B that can be larger or smaller than the bandwidth of the control signal, so it can be a transition period during which the RF front end is modified to receive the data signal.

On the other hand, if there is no data signal following the wideband control signal, method 20 600 advances to frame 440. In frame 440, the power supplied to the RF front end components is reduced

Certain, such as amplifiers 215 , analog filters 225 , and/or ADCs 230 , place the components in a precise sleep state. After a period of time, in frame 445 the components are instructed to supply power or “stand up” to prepare to receive another control signal in frame 410. The receiver 200 can wait until immediately before the start of the next TTI to request the RF front end components to stand up. As part of the advance process 25, the bandwidth and sample selection rate(s) of the RF front end are adjusted to receive

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Narrow band control signal. The instruction or code may be stored in the memory 250 of the adjustable receiver 200 where it is executable by the control processor 255 to execute the method 600.

Figure 7 shows a typical framework and signal structure of an FDM system. The frequency of the carrying component of data assigned to a particular UE is not fixed and can change. In an FDM scheme, a bandwidth can be divided

<p dir="rtl">5 The overall system is divided into a set of frequency bands so that data signals can be sent to different UEs at the same time in different frequency bands. For example, the data signal of the 710 UE1 and the data signal of the 720 UE2 are overlapped in time during TTI1 but not in frequency. A carrier signal at the center frequency of each of the data signals shown in Figure 7 is used to transmit the different data signals.</p>

<p dir="rtl">10 The bandwidth allocated to data signals for a particular UE can change over time, as shown by comparing data signals 710 and 730 allocated to UE1, for example. A base station may decide to change the bandwidth of a particular UE due to differences in the amount of data available for transmission versus time, for example.</p>

Some conventional FDM schemes transmit OFDM signals using the total bandwidths available 15 for downlink transmissions, with different combinations of sub-load elements within the complete signal

Assigned to different UEs. As a result, each UE typically processes the full bandwidth to extract the set(s) of carry subelements assigned to the UE. In comparison, when the RF carrier frequency is allowed to change from transmission to transmission, the UE is notified which RF carrier is being used for its signal. However The advantage of the method using multiple RF carry elements is that the bandwidth can be used more efficiently if data signals are allowed to use different RF carry elements.

So that each UE does not require full bandwidth processing and can use its own dedicated RF load element.

Figure 8 is a protocol diagram showing signal characteristics between a UE 120 and a base station 110 supporting FDM with variable bandwidths. In this example, remote control signals are sent

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Through a different channel than the data signal. The control channel could be in a different frequency band or in a different time slot, for example. A control signal indicates the center frequency (if the center frequency is dynamic) and the bandwidth of an associated data signal. The data signal is then transmitted using the characteristic bandwidth and center frequency. In a time interval between the control signal and the data signal, the receiver is tuned

<p dir="rtl">5 120 UE to data signal bandwidth. This process is repeated as long as there is data to transfer between</p>

Base station 110 and 120 UE.

The base station 110 can contribute to that process across different UEs 120 for efficient use of the available spectral bandwidth. One example of this covalent process is described in Figure 7.

Figure 9 is a protocol diagram showing the signal characteristics between 120 UEs and a station

<p dir="rtl">10 Basic 110 to support variable bandwidth signal. First, the UE 120 sends a capability message to the base station 110. The capability message can provide one or more flags corresponding to the number of variables and capabilities of the UE 110. The capability message can include a flag whether the UE 110 is capable of dynamic switching between signals of different bandwidths. The power message may also include a mark on the transfer latency of the UE 120, so that the base station 110 can respond by</p>

<p dir="rtl">15 Inserting or reversing a time period between control and data signals to allow the 120 UE to adjust its RF front end. The time period accommodates the transfer latency indicated by the UE.</p>

The next base station 110 sends a response message in response to the power message. The response message can provide one or more flags corresponding to the number of variables and capabilities. For example, the response message could indicate that a dynamic bandwidth conversion is activated. Can be activated or deactivated

<p dir="rtl">20 Shift dynamic bandwidth as frequently as desired during a connection. Thus, the message indicating the activation or deactivation of dynamic bandwidth switching can be sent to the base station 110 as repeatedly as desired.</p>

The response message can also indicate the time compensation between a control signal and the corresponding data signal in the TTI. The time compensation can depend on the switching latency indicated in the power message. maybe

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The time compensation accommodates the latency required to decode the control signal and allow the RF front end to convert bandwidths. The response message can also indicate either saving the bandwidth at a wide bandwidth of the data signal for the next control signal, as shown in Figure 5, or returning to a narrow bandwidth, as shown in Figure 3. Alternatively, the control signal A precedent also indicates that the bandwidth is either saved at a wide bandwidth of the data signal for a subsequent control signal, as shown in Figure 5, or returned to a narrow bandwidth, as shown in Figure 3.

Alternatively, the base station 110 can decide not to activate dynamic bandwidth switching.

If dynamic bandwidth conversion is not activated, the control signals occupy the same bandwidth on

<p dir="rtl">10 Data signal format and there is no compensation time between control signals and data signals.</p>

After switching the power message and the response message, transmission of control and data information can be performed as needed. In the example shown in Figure 9, a control signal is transmitted by the base station 120 and received by the UE 110. The 110 UE then modulates its RF front end, after which a data signal is sent to the base station 120 and received by the 110 UE.

<p dir="rtl">15 Figure 10 is a frame diagram of a transceiver 900 where features of that disclosure are implemented. The transceiver facility 900 includes antennas 210, a baseband processor 245, memory 250, and a controller/processor 255 as previously described. The transmitting and receiving device also includes RF receive front terminals 910 (Rx). Each RF Rx front terminal 910 may include an amplifier, an analog filter, and an ADC as described in relation to Figure 2.</p>

<p dir="rtl">20 Other RF Rx front end structures are consistent with this disclosure. For example, some RF Rx front-end architectures perform most of the processing in the analog band, and some RF Rx front-end architectures perform most of the processing in the digital band. Furthermore, some RF Rx front-end architectures perform most of the processing at the intermediate frequency (IF), rather than baseband. These RF Rx front-ends can be made adjustable to accommodate variations in the signal</p>

<p dir="rtl">25 Control and data signal bandwidths.</p>

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The transceiver also includes RF transmitter front terminals (920 Tx). Each RF Tx front end 920 accepts a stream of digital data codes from a baseband processor and converts the digital data codes into an analog signal for transmission via the corresponding antenna 210 .

The transceiver means 900 is suitable for either the base station 110 or 120 UE.

<p dir="rtl">5 When the transceiver 900 is in the transmit mode, the front RF Tx terminals are engaged</p>

920, and a controller/processor 255 controls the RF Tx front ends 920 as well as a baseband processor 245 to generate signals with different bandwidths. The assembly of an RF Tx front end 920 and a baseband processor 245 is an example of a transmitter. An assembly of an RF Rx front end 910 and a baseband processor 245 is an example of a receiver. An RF Rx front end 910 may include

<p dir="rtl">10 The RF front end 212 is described previously.</p>

In addition to the previously described capabilities for time modulation of OFDM symbols, a baseband process 245 can be additionally designed to time modulate OFDM symbols. Time modulation of OFDM symbols is well known in the art and in some embodiments an inverse FFT is implemented to convert the frequency domain data to the time domain. As described previously, there are different techniques for changing

<p dir="rtl">15 OFDM signal bandwidths. One technique involves changing the number of sub-load elements used to generate OFDM signals.</p>

Information and signals can be represented using any variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, codes, and chips that can be referred to throughout the previous description can be represented entirely by

<p dir="rtl">20 Voltages, currents, electromagnetic waves, magnetic fields or particles, light fields, particles or any combination thereof.</p>

Figure 11 shows another frame format 1110. The frame format is a TDM format in which time is divided into TTIs and the control signals and data signals are double-timed. Figure 11 shows a signal sequence transmitted within that frame format 1110.

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The control signals 1115 are narrow band control signals. In one embodiment, a base station allows a full TTI duration to delay the bandwidth transfer of a receiver. There are at least two options for signaling using the control signals 1115. In a first option, the control signal 1115 at TTIn has a bandwidth shift to target an expansion of the bandwidth of an RF front end to receive display data.

<p dir="rtl">5 Wider range in 1+TTIn. In that selection, control signal 1115 at 1+TTIn indicates which frequency band has been assigned to the data at 1+TTIn. In a second option, the allocation of the radio data frame 1125 in 1+TTIn is custom or preplanned using the control signal 1115 in TTIn. Once a wide RF front-end bandwidth has been set for 1+TTIn, the mapping can be reverted to the moderate mode (i.e., without prior mapping) for the following TTIs. For example, the control signal indicates</p>

<p dir="rtl">10 1115 in 2+TTIn uses data sources 1135 and 1145 in 2+TTIn.</p>

The advantage of the first choice is that the planner at a base station only requires knowledge that the UE will be planned at the next TTI to set the tag. The base station scheme does not require carrying out advance planning and avoiding a corresponding increase in col. The advantage of the second choice is to provide a control channel source that has no bandwidth shifting indicator.

15

20

Receiver bandwidth banding is indicated in Figure 11. Receiver bandwidth banding represents the frequency range versus time used by a receiver, such as an adjustable receiver 200, in the frame formulation of interest. During the transition period 1120 the receiver bandwidth can be moved from a relatively narrow bandwidth for receiving the control signal 1115 to a relatively wide bandwidth (in that embodiment, the entire system bandwidth or the full data available bandwidth) for receiving the data. Likewise, during transition period 1130 the receiver bandwidth can be moved from a relatively wide bandwidth to a relatively narrow bandwidth as shown.

Figure 12 shows another frame format 1210. In that frame format a data signal can be assigned to only a final portion or part of the TTI, such that there is sufficient time for the receiver bandwidth to move from a narrow bandwidth to receive a control signal to a wider bandwidth to receive a data signal. on

25 For example, in TTIn the control signal 1215 may indicate that a data signal will exist

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1225 Later at TTI. Therefore, a smaller fraction of the TTI than the example in Figure 11 can be available for a receiver bandwidth conversion. During the transition period 1220 the receiver bandwidth is increased. One such example of increasing the receiver by enclosing the receiver bandwidth is shown in Figure 12.

<p dir="rtl">5 Once the receiver is moved to a wider bandwidth in the TTIn, it can take up the entire TTI data allocation, including multiplexing selection using the frequency control channel. For example, control signal 1215 at 1+TTIn can indicate data signal bandwidths 1235 and 1245. Control signals transmitted after the receiver are transmitted at a higher bandwidth which may be referred to as wideband control signals, and in some embodiments wideband control signals</p>

<p dir="rtl">10 into a control signal and one or more data signals that are transmitted simultaneously in different frequency bands (i.e., frequency division multiplexing). An example of a wide-band control signal is the control signal 1215 at TTIn+1 in Figure 12, the This control is frequency division multiplexed with data signals 1235 and 1245. In some embodiments, during a time period during which broadband control signals are transmitted, the transmitted signal includes a control signal portion and a data signal portion.</p>

<p dir="rtl">15 Figure 12 also shows a countdown mechanism to return a receiver to a narrow band to receive control signals.</p>

In 2+TTIn, control signal 1215 indicates that there is no data inside 2+TTIn. Thus, 2+TTIn is a filter to reconfigure the receiver bandwidth to a narrow bandwidth using the mechanisms described previously - eg for Figure 2. However, instead of having the receiver shift iteratively between bandwidths, a countdown mechanism is used. On the first TTI that does not 20 have data to transmit, the counter is set to the maximum value, such as four, three, two, one or any

A value of an integer. In the model in Figure 12, the maximum value is one. The counter decreases every successive TTI that contains no data. If the TTI contains data, the counter is reset to the maximum value. In the example of Figure 12, at 3+TTIn, if there is no data to transmit, the counter decreases to zero. A counter value of zero indicates that the receiver should be reduced yet

<p dir="rtl">25 That's the width of his range. For example, at 3+TTIn, the receiver reduces its bandwidth as is</p>

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Shown (The receiver transitions from wide to narrow bandwidth during transition period 1230). An alternative to countdown timing is to reduce the receiver bandwidth to narrow bandwidth at the first dataless TTI.

Figure 13 shows another framework formula 1310. The framework formula 1310 is similar to the

<p dir="rtl">5 Framework 1110, except for framework formulation 1310, a receiver model is optimized using a bandwidth configuration according to the data assignment. For example, in Figure 11 during 1+TTIn the receiver bandwidth is set to the system bandwidth or maximum supported data bandwidth, whereas in Figure 13 the receiver bandwidth during 1+TTIn is set to be large enough to receive the data signal 1325 while It remains symmetrical around the center frequency fc.</p>

<p dir="rtl">10 Furthermore, as in Figure 11, there are at least two options for signaling using the control signals 1115. In a first option, the control signal 1115 in the TTIn has a bandwidth conversion tag that increases bandwidth information to target an expansion of the bandwidth of an RF front end so that it is wide enough to receive bandwidth data. Wider range in 1+TTIn. In a second option, the allocation of the radio data frame 1125 in 1+TTIn is custom or preplanned using the control signal 1115 in</p>

<p dir="rtl">15 TTIn. Once a wide RF front-end bandwidth is set for 1+TTIn, the mapping can be returned to moderate mode (i.e., without prior mapping) for subsequent TTIs. For example, control signal 1115 at 4+TTIn indicates that data sources 1335 at 4+ are being used TTIn For example, control signals 1115 in 2+TTIn and 3+TTIn indicate that there is no data in the respective TTIs, so the receiver bandwidth remains narrow and the receiver can go into a delicate sleep state.</p>

<p dir="rtl">20 Figure 14 shows another frame formula 1410. When using that frame formula 1410 the center frequency may not remain dependent on the same TTI. This framework format helps in using a receiver that can vary the center frequency and bandwidth of the RF front end. Bandwidth of the receiver is indicated.</p>

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A receiver bandwidth is centered on a frequency at the control signal center 1415 in TTIn and then centered during transition period 1420 to the frequency Aden data signal center 1445.

That frame format 1410 combined with the pre-planning of data signals 1445, 1455, and 1465 using the control signal 1415 indicates that the control signals 1425 can be ignored.

<p dir="rtl">5 Using a receiver designed to receive data signals 1445, 1455 and 1465. As shown in Figure 14, pre-planning of functional TTIs for data signals can be performed. For example, the data signals 1445 and 1465 occupy part of a TTI time slot, and the duration of the data signals can be indicated by the control signal 1415. After the data signal 1465, the RF front end can be reset to the bandwidth of the control signal 1435 during the transition period 1430.</p>

<p dir="rtl">10 Figure 15 shows another frame format 1510. The frame format 1510 is an exemplary TDM format in which control signals and data signals are received by the UE, and ACKs (acknowledgment messages) are sent by the UE in response to the receipt of the data signals. In one embodiment , ACK is used to indicate whether all or part of the previous data signal was received correctly in that frame format 1510 bandwidth is saved</p>

<p dir="rtl">15 The RF front end of a receiver at the system bandwidth or maximum available data bandwidth so that a TTI that has no data allocation is received. For example, in 2+TTIn, the control signal 1535 indicates that there is no data in the TTI so the receiver can reduce its bandwidth during transition period 1530 as shown. Guard periods can be entered on either side with ACK. For example, protection periods 1544 and 1546 are entered on either side with an ACK</p>

20 1445.

A representative example of a data signal layout according to Framework Formula 1510 is as follows. The control signal 1515 of the TTIn can be used to map the data signal 1565 to a portion of the TTI. After receiving the control signal 1515 the receiver transmits its RF front end bandwidth to receive the data signal 1565 as shown. Alternatively (not shown), it can carry the control signal

<p dir="rtl">25 1515 In TTIn a bandwidth conversion indicator or pre-mapping of information, similarly</p>

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For the layout described in Figure 11, data allocation is delayed until 1+TTIn. This layout avoids allocating the RBs' data to only part of the TTI (as in 1565), at the expense of a delayed start of data transmission. Then, the RF front-end bandwidth is held at a wide bandwidth until a TTI control signal indicates that there is no data in the TTI The narrowband control signal 5 1525 indicates that a data signal 1575 is present, so the receiver is designed to receive the signal.

data. The control signal 1525 may use a secondary set of available secondary load elements, and a portion of the data signal 1575 that is synchronized with the control signal 1525 may occupy the remaining available secondary load elements. The control signal 1535 indicates that there is no data in 2+TTIn, so the receiver reduces its RF front end bandwidth and can also go into a 10 minute sleep state during transition period 1530.

Some features of the 1510 framework include the following. First, for a successive TTI data allocation, once an increase in RF bandwidth expansion is achieved (causing a delayed start of a radio data frame), in the next TTI there is no more radio data frame. Second, optimizations for wideband to narrowband transitions can be applied, e.g. Countdown timer or bandwidth shift indicator 15 described in relation to Figure 12, as well.

Figure 16 shows another frame format 1610. The frame format 1610 is a typical TDM format in which control signals and data signals are received by the UE, and ACKs are transmitted by the UE in response to the receipt of the data signals. A representative example of a data signal layout according to Framework Formula 1610 is as follows. Control signal 1615 can be used in TTIn

<p dir="rtl">20 To map the data signal 1620 to part of the TTI. After receiving the control signal 1615 the receiver transmits its RF front end bandwidth to receive the data signal 1620 as shown. The receiver returns to a narrow bandwidth to receive each control signal as shown. For example, the receiver transitions to a narrow bandwidth during transition period 1640 and then receives the control signal 1625 using a narrow bandwidth as shown. The framework formula feature 1610 can include that</p>

<p dir="rtl">25 The bandwidth shifting behavior is similar across TTIs.</p>

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Once it is understood how the framework formulas in Figures 3 and 5 are implemented using the adjustable receiver 200 as previously described, it is readily understood that the framework formulas in Figures 16-11 can be implemented in a step-forward manner using the adjustable receiver 200.

The illustrative frameworks and modules described in connection with the invention herein may be made or implemented

<p dir="rtl">5 Using a general purpose processor, FPGA, ASIC, DSP or other programmable logic device, discrete gate, transistor logic, discrete computer hardware, or any combination thereof intended to perform the tasks described herein. A general purpose processor may be a microprocessor but alternatively the processor may be any conventional processor, controller, microcontroller or dedicated state machine (for example, a combination of a DSP and a microprocessor or multiple processors</p>

<p dir="rtl">10 One or more microprocessors in combination with a DSP core or other design).</p>

The functions described in this document may be implemented in hardware, processor-implemented software, firmware, or any combination thereof. If implemented in a computer program executed by a processor, the functions may be stored on or transmitted as one or more instructions or codes on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and elements

<p dir="rtl">15 Attached protection. For example, due to the nature of the software, the functions described above may be implemented using software implemented by a processor, hardware, firmware, or equipment, or combinations thereof. Job execution features can be physically located at different locations, including distributing them so that parts of the functionality execute at different physical locations. Also, as used herein, including safeguards, “or” as used in a list of items (e.g., list of items) means</p>

<p dir="rtl">20 Prefixed by a term such as “at least one of” or “one or more of” denotes an exhaustive list such that, for example, a list of [at least one of B, A, or C] refers to A, B, C, AB, or AC or BC or ABC (i.e., A, B, C).</p>

As some of those skilled in the art will now realize, depending on the particular application available, many modifications, substitutions and changes can be made in and to the materials, apparatus, designs and methods of using the media.

<p dir="rtl">25 of the current disclosure without deviating from its content and scope. In view of this, the scope should not be restricted</p>

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The present disclosure thereof is for the particular embodiments shown and described herein, which are merely examples thereof, but otherwise shall comply entirely with that of the safeguards hereinafter appended and their functional equivalents.

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