Apparatus and method for wireless communication

Abstract

A method of wireless communication performed by a user equipment (UE), comprising receiving, from a base station, a plurality of transmit beams, and receiving, from the base station, a configuration of reference signals for beam measurement, wherein a number of the transmit beams is N, and a number of the reference signals for beam measurement is M, wherein M is less than N.

Description

Technical Field

[0001] This disclosure relates to the field of communication systems, and more specifically, to apparatus and methods for wireless communication. Background Technology

[0002] In New Radio (NR) / 5G systems, particularly in Frequency Range 2 (FR2), multi-beam operation is a fundamental feature for ensuring robust communication. Base stations and User Equipment (UEs) employ beam measurement and reporting within the Channel State Information (CSI) framework to identify the optimal transmit (Tx) and receive (Rx) beam pairs for downlink and uplink transmissions. This involves using Channel State Information Reference Signal (CSI-RS) resources or Synchronization Signal / Physical Broadcast Channel (SS / PBCH) blocks, each corresponding to a specific Tx beam, for which the UE measures the Layer 1 Reference Signal Received Power (L1-RSRP) or Layer 1 Signal-to-Interference-Noise Ratio (L1-SINR). Additionally, beam indication is facilitated by Transmission Configuration Indicator (TCI) state signaling. Each TCI state provides spatial and power control parameters for beam alignment and uplink power calculation. However, the current method incurs significant overhead because base stations with a large number of Tx beams require an equal number of reference signals, thus impacting system throughput in scenarios with a large number of beams.

[0003] Therefore, devices and methods for wireless communication are needed. Summary of the Invention

[0004] The purpose of this disclosure is to provide an apparatus and method for wireless communication that can solve problems and other issues in the prior art, enabling systems to measure the quality of many transmitted beams based on very few reference signals and / or reduce resource overhead.

[0005] In a first aspect of this disclosure, a method of wireless communication performed by a user equipment (UE) includes: receiving a plurality of transmit beams from a base station, and a configuration for receiving reference signals for beam measurement from the base station, wherein the number of transmit beams is N, and the number of reference signals for beam measurement is M, wherein M is less than N.

[0006] In a second aspect of this disclosure, a UE includes a receiver configured to receive from a base station a configuration of the number of transmit beams and reference signals for beam measurement, wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N.

[0007] In a third aspect of this disclosure, the UE includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The UE is configured to perform the methods described above.

[0008] In a fourth aspect of this disclosure, a method for wireless communication performed by a base station includes: transmitting a plurality of transmit beams to a user equipment (UE), and a configuration for transmitting reference signals for beam measurement to the UE, wherein the number of transmit beams is N, and the number of reference signals for beam measurement is M, wherein M is less than N.

[0009] In a fifth aspect of this disclosure, a base station includes a transmitter configured to transmit a plurality of transmit beams and a reference signal for beam measurement to a user equipment (UE), wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N.

[0010] In a sixth aspect of this disclosure, the base station includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The base station is configured to provide the above-described method.

[0011] In a seventh aspect of this disclosure, a non-transitory machine-readable storage medium is provided having instructions stored thereon that, when executed by a computer, cause the computer to perform the methods described above.

[0012] In an eighth aspect of this disclosure, a chip includes a processor configured to invoke and run a computer program stored in a memory to cause a device on which the chip is mounted to perform the methods described above.

[0013] In a ninth aspect of this disclosure, a computer-readable storage medium is provided, wherein a computer program is stored that causes a computer to perform the above-described method.

[0014] In a tenth aspect of this disclosure, a computer program product includes a computer program that causes a computer to perform the methods described above.

[0015] In the eleventh aspect of this disclosure, a computer program causes a computer to perform the above-described method. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this disclosure or related technologies, the following drawings will be described in the brief introduction of the embodiments. Obviously, the drawings are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0017] Figure 1 This is a block diagram of one or more user equipment (UE) and a communication base station in a communication network system according to embodiments of the present disclosure.

[0018] Figure 2 This is a block diagram of a UE according to an embodiment of the present disclosure.

[0019] Figure 3 This is a block diagram of a UE according to an embodiment of the present disclosure.

[0020] Figure 4 This is a flowchart illustrating a method of wireless communication performed by a UE according to an embodiment of the present disclosure.

[0021] Figure 5 This is a block diagram of a base station according to an embodiment of the present disclosure.

[0022] Figure 6 This is a block diagram of a base station according to an embodiment of the present disclosure.

[0023] Figure 7 This is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure.

[0024] Figure 8 This is a schematic diagram illustrating an example of the transmission and measurement of a reference signal for beam measurement according to an embodiment of the present disclosure.

[0025] Figure 9 This is a flowchart illustrating an example of the transmission and measurement of a reference signal for beam measurement according to an embodiment of the present disclosure.

[0026] Figure 10 This is a block diagram of an example computing device according to embodiments of the present disclosure.

[0027] Figure 11 This is a block diagram of a communication system according to an embodiment of the present disclosure. Detailed Implementation

[0028] The technical features, structural characteristics, objectives, and effects of the embodiments of this disclosure are described in detail below with reference to the accompanying drawings. Specifically, the terminology used in the embodiments of this disclosure is only used to describe the purpose of a particular embodiment and is not intended to limit this disclosure.

[0029] The technical solutions of this disclosure can be applied to various communication systems, such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), LTE Advanced Long Term Evolution (LTE-A), New Radio (NR), evolution systems of NR, LTE-based Unlicensed Spectrum Access (LTE-U), NR-based Unlicensed Spectrum Access (NR-U), Universal Mobile Telecommunications System (UMTS), Microwave Access Global Interoperability (WiMAX), Wireless Local Area Network (WLAN), Wi-Fi, future fifth-generation (5G) systems (also known as New Radio (NR) systems), or other communication systems.

[0030] Optionally, the base station mentioned in this application embodiment can provide communication coverage for a specific geographical area and can communicate with user equipment (UE) located within the coverage area. Optionally, the base station can be a base transceiver unit (BTS) in a gNB, GSM, or CDMA system, or a NodeB (NB) in a WCDMA system, or an evolved Node B (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN).

[0031] User equipment (UE) can refer to an access terminal, subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user equipment. An access terminal can be a cellular wireless phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device, other processing devices coupled to a wireless modem, in-vehicle equipment, wearable device, terminal equipment in future 5G networks, and terminal equipment in future evolved Public Land Mobile Networks (PLMNs), etc.

[0032] Optionally, the communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be regarded as shared spectrum; or the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be regarded as non-shared spectrum.

[0033] In New Radio (NR) / 5G systems, particularly in Frequency Range 2 (FR2), multi-beam operation is a fundamental feature for ensuring robust communication. Base stations such as next-generation Node Bs (gNBs) and User Equipments (UEs) employ beam measurement and reporting within the Channel State Information (CSI) framework to identify optimal transmit (Tx) and receive (Rx) beam pairs for downlink and uplink transmissions. This involves using Channel State Information Reference Signal (CSI-RS) resources or Synchronization Signal / Physical Broadcast Channel (SS / PBCH) blocks, each corresponding to a specific Tx beam, for which the UE measures Layer 1 Reference Signal Received Power (L1-RSRP) or Layer 1 Signal-to-Interference-plus-Noise Ratio (L1-SINR). Additionally, NR systems support beam indication for transmissions of the Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), and Sound Reference Signal (SRS) via Transmission Configuration Indicator (TCI) status signaling.

[0034] The gNB transmits multiple CSI-RS resources or SS / PBCH blocks to perform beam measurement, where each CSI-RS resource or SS / PBCH block represents a Tx beam. The gNB may request the UE to measure a set of CSI-RS resources and / or SS / PBCH blocks, and the UE measures the L1-RSRP or L1-SINR for each CSI-RS resource and / or SS / PBCH block. To achieve beam indication, the UE is provided with a list of joint TCI states or separate lists of downlink (DL) TCI states and uplink (UL) TCI states. Each joint TCI state includes quasi-co-located QCL Type D configuration parameters for downlink reception and an uplink spatial filter reference for transmission. The joint TCI states are also associated with uplink power control parameters, including transmit power offset (P0), α, closed-loop power control index, and path loss reference signal (RS).

[0035] The gNB can signal the joint TCI state or a pair of DL and UL TCI states to the UE via downlink control information (DCI) signaling. Upon receiving the DCI signaling, the UE sends an acknowledgment (ACK) to the gNB and applies the indicated TCI state starting from the first time slot after the beamappTime. Using QCL type D information, the UE derives the Rx beams for receiving PDCCH and PDSCH. Similarly, uplink spatial filter information from the indicated TCI state allows the UE to determine the Tx beams for transmitting PUSCH, PUCCH, and / or SRS. The UE also calculates the uplink transmit power based on the provided power control parameters and path loss RS.

[0036] However, current beam measurement methods introduce significant overhead because a gNB with a large number of Tx beams must configure and transmit an equal number of reference signal resources. In systems with multiple Tx beams, this overhead reduces system data throughput and efficiency.

[0037] Figure 1 The illustration shows one or more user equipment (UE) 10 and base station (e.g., next-generation NodeB (gNB) or eNB) 20 communicating in a communication network system 30 (e.g., an NR system) according to embodiments of the present disclosure in some embodiments. The communication network system 30 includes one or more UEs 10 and base station 20. One or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and transceiver 23. The processor 11 or 21 may be configured to implement the functions, processes, and / or methods proposed herein. A layer of radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled to the processor 11 or 21 and stores various information to operate the processor 11 or 21. Transceiver 13 or 23 is operably coupled to processor 11 or 21, and transceiver 13 or 23 transmits and / or receives radio signals.

[0038] Processor 11 or 21 may include application-specific integrated circuits (ASICs), other chipsets, logic circuits, and / or data processing devices. Memory 12 or 22 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices. Transceiver 13 or 23 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., processes, functions, etc.) that perform the functions described herein. Modules may be stored in memory 12 or 22 and executed by processor 11 or 21. Memory 12 or 22 may be implemented within or outside of processor 11 or 21; in the case of external implementation, memory 12 or 22 may be communicatively coupled to processor 11 or 21 via various means known in the art.

[0039] In some embodiments, transceiver 13 is configured to receive from base station 20 a configuration of the number of transmit beams and reference signals for beam measurement, wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N. This can solve problems in the prior art and other issues, enabling the system to measure the quality of many transmit beams based on a very small number of reference signals, and / or reduce resource overhead.

[0040] In some embodiments, transceiver 23 is configured to send to UE 10 a configuration of the number of transmit beams and reference signals for beam measurement, wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N. This addresses problems in the prior art and other issues, enabling the system to measure the quality of many transmit beams based on a very small number of reference signals, and / or reducing resource overhead.

[0041] Figure 2 An example of a UE 200 according to an embodiment of this application is shown. The UE 200 is configured to implement some embodiments of this disclosure. Some embodiments of this disclosure can be implemented in the UE 200 using any appropriately configured hardware and / or software. The UE 200 includes a receiver 201. The receiver 201 is configured to receive from a base station the number of transmit beams and the reference signals for beam measurement, wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N. This can solve problems in the prior art and other issues, enabling the system to measure the quality of many transmit beams based on a very small number of reference signals, and / or reduce resource overhead.

[0042] Figure 3An example of a UE 300 according to an embodiment of the present disclosure is shown. The UE 300 is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the UE 300 using any suitably configured hardware and / or software. The UE 300 may include a memory 301, a transceiver 302, and a processor 303 coupled to the memory 301 and the transceiver 302. The processor 303 may be configured to implement the functions, processes, and / or methods described herein. A layer of a radio interface protocol may be implemented in the processor 303. The memory 301 is operatively coupled to the processor 303 and stores various information to operate the processor 303. The transceiver 302 is operatively coupled to the processor 303 and transmits and / or receives radio signals. The processor 303 may include an application-specific integrated circuit (ASIC), other chipsets, logic circuits, and / or data processing devices. The memory 301 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices. Transceiver 302 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., processes, functions, etc.) that perform the functions described herein. Modules may be stored in memory 301 and executed by processor 303. Memory 301 may be implemented within or outside of processor 303; in the case of external implementation, memory 301 may be communicatively coupled to processor 303 via various means known in the art.

[0043] In some embodiments, transceiver 302 is configured to receive from a base station the number of transmit beams and the number of reference signals for beam measurement, wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N. This can solve problems in the prior art and other issues, enabling the system to measure the quality of many transmit beams based on a very small number of reference signals, and / or reduce resource overhead.

[0044] Figure 4This is an example of a wireless communication method 400 performed by a UE according to embodiments of the present disclosure. The wireless communication method 400 performed by the UE is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the wireless communication method 400 performed by the UE using any appropriately configured hardware and / or software. In some embodiments, the wireless communication method 400 performed by the UE includes: operation 402, receiving a plurality of transmit beams from a base station; and operation 404, receiving a configuration of reference signals for beam measurement from the base station, wherein the number of transmit beams is N, and the number of reference signals for beam measurement is M, where M is less than N. This can solve problems in the prior art and other issues, enabling the system to measure the quality of many transmit beams based on a very small number of reference signals, and / or reduce resource overhead.

[0045] In some embodiments, N is 256 and M is 32. In some embodiments, the method further includes receiving measurement matrix information from a base station, wherein the measurement matrix information is applied to the transmission of M reference signals for beam measurement, and the measurement matrix information maps the M reference signals for beam measurement to N transmit beams. In some embodiments, the method further includes receiving a list of measurement matrices from a base station and processing the M reference signals for beam measurement using the indicated measurement matrices. In some embodiments, the method further includes receiving M reference signals for beam measurement from a base station, wherein the M reference signals for beam measurement are mapped to N transmit beams by the indicated measurement matrices.

[0046] In some embodiments, the method further includes being requested to receive and measure M reference signals. In some embodiments, the method further includes: after obtaining measurement results from the M reference signals used for beam measurement, requesting the UE to recover full beam quality information of N transmitted beams based on the measurement results and / or an indicated measurement matrix. In some embodiments, the method further includes calculating a beam reporting quantity based on the measurement results and / or the full beam quality information of the N transmitted beams. In some embodiments, the method further includes reporting the beam reporting quantity to a base station.

[0047] Figure 5An example of a base station 500 according to an embodiment of this application is shown. The base station 500 is configured to implement some embodiments of this disclosure. Some embodiments of this disclosure can be implemented in the base station 500 using any appropriately configured hardware and / or software. The base station 500 includes a transmitter 501. The transmitter 501 is configured to send to the UE a configuration of the number of transmit beams and reference signals for beam measurement, wherein the number of transmit beams is N, and the number of reference signals for beam measurement is M, where M is less than N. This can solve problems in the prior art and other issues, enabling the system to measure the quality of many transmit beams based on a very small number of reference signals, and / or reduce resource overhead.

[0048] Figure 6 An example of a base station 600 according to an embodiment of the present disclosure is shown. The base station 600 is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the base station 600 using any appropriately configured hardware and / or software. The base station 600 may include a memory 601, a transceiver 602, and a processor 603 coupled to the memory 601 and the transceiver 602. The processor 603 may be configured to implement the functions, processes, and / or methods described herein. A layer of a radio interface protocol may be implemented in the processor 603. The memory 601 is operatively coupled to the processor 603 and stores various information to operate the processor 603. The transceiver 602 is operatively coupled to the processor 603 and transmits and / or receives radio signals. The processor 603 may include an application-specific integrated circuit (ASIC), other chipsets, logic circuits, and / or data processing devices. The memory 601 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices. Transceiver 602 may include baseband circuitry for processing radio frequency signals. When embodiments are implemented in software, the techniques described herein can be implemented using modules (e.g., processes, functions, etc.) that perform the functions described herein. Modules may be stored in memory 601 and executed by processor 603. Memory 601 may be implemented within or outside of processor 603; in the case of external implementation, memory 601 may be communicatively coupled to processor 603 via various means known in the art.

[0049] In some embodiments, transceiver 602 is configured to transmit to the UE a configuration of the number of transmit beams and reference signals for beam measurement, wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N. This addresses problems in the prior art and other issues, enabling the system to measure the quality of many transmit beams based on a very small number of reference signals, and / or reducing resource overhead.

[0050] Figure 7This is an example of a wireless communication method 700 performed by a base station according to embodiments of the present disclosure. The wireless communication method 700 performed by a base station is configured to implement some embodiments of the present disclosure. Some embodiments of the present disclosure can be implemented in the wireless communication method 700 performed by a base station using any appropriately configured hardware and / or software. In some embodiments, the wireless communication method 700 performed by a base station includes: operation 702, transmitting a plurality of transmit beams to a user equipment (UE); and operation 704, transmitting a configuration of reference signals for beam measurement to the UE, wherein the number of transmit beams is N, and the number of reference signals for beam measurement is M, where M is less than N. This can solve problems in the prior art and other issues, enabling systems to measure the quality of many transmit beams based on very few reference signals, and / or reduce resource overhead.

[0051] In some embodiments, N is 256 and M is 32. In some embodiments, the method further includes sending measurement matrix information to the UE, wherein the measurement matrix information is applied to the transmission of M reference signals for beam measurement, and the measurement matrix information maps the M reference signals for beam measurement to N transmit beams. In some embodiments, the method further includes sending a list of measurement matrices to the UE for beam measurement, indicating one of the measurement matrices to the UE, and applying the indicated measurement matrix to the transmission of the M reference signals for beam measurement. In some embodiments, the method further includes sending the M reference signals for beam measurement to the UE, and mapping the M reference signals for beam measurement to N transmit beams using the indicated measurement matrix.

[0052] In some embodiments, the method further includes requesting the UE to receive and measure M reference signals. In some embodiments, the method further includes receiving measurement results from the UE of the M reference signals used for beam measurement, and requesting the UE to recover full beam quality information of N transmitted beams based on the measurement results and / or the indicated measurement matrix. In some embodiments, the method further includes requesting the UE to calculate a beam reporting quantity based on the measurement results and / or the full beam quality information of the N transmitted beams. In some embodiments, the method further includes receiving the beam reporting quantity from the UE.

[0053] Exemplary technical solutions: Some examples in this disclosure present solutions for beam measurements utilizing compressed sensing. Figure 8 An example of the transmission and measurement of a reference signal for beam measurement according to an embodiment of the present disclosure is shown. Figure 8In one embodiment, a base station can be configured with N transmit beams. The base station can transmit one or more reference signals for a user equipment (UE) to measure the quality of these N transmit beams. The number of reference signals required for the UE to obtain the beam quality of the N transmit beams can be M, where M is significantly less than N. To transmit the reference signals, the base station can apply a measurement matrix to the reference signals, mapping the M reference signals to the N transmit beams. Figure 8 An example is shown in the figure.

[0054] like Figure 8 As shown, the base station generates M reference signals for beam measurement and maps these M reference signals to N transmit beams using a measurement matrix. The UE is configured with the M reference signals and the measurement matrix. On the UE side, the UE first measures the M reference signals and then uses the provided measurement matrix along with the measurement results of the M reference signals to calculate the beam quality of the N transmit beams. To facilitate this process, the base station may provide the UE with one or more of the following information.

[0055] Number of base station transmit beams (N): This informs the UE of the total number of transmit beams at the base station.

[0056] Configuration of the M reference signals used for beam measurement: This provides details about the reference signals used for measurement.

[0057] The measurement matrix applied by the base station during reference signal transmission: This information enables the UE to reconstruct the beam quality of all N transmitted beams.

[0058] With this system design, on the UE side, the UE measures: ,in It refers to the beam quality of those N transmitted beams. It is a measurement matrix used by the base station to map the reference signal onto N transmit beams, where The dimension is , It measures noise. This is the beam measurement obtained by the UE by measuring the received reference signal. It can be observed here that to recover the beam measurement of N base station transmitted beams, N reference signals may not be necessary; instead, it is possible to transmit... M There are 1 reference signal, among which M much smaller N Therefore, the resource overhead of the reference signal used for beam measurement can be significantly reduced. This is because beam measurement... It is sparse in some transform domains (e.g., in the spatial domain). According to compressed sensing theory, the UE can be based on... Limited measurement and measurement matrix The information restores the full beam quality of all N transmitted beams.

[0059] Utilizing the UE side Measurement results and measurement matrix provided by the base station The UE can recover the full beam quality information of all N transmitted beams from this information. The UE may be requested to report one or more of the following information to the base station: measurement results. and / or Complete information on the recovery. The UE can be requested to report the beam measurement results for K of the N transmit beams.

[0060] Figure 9 An example of the transmission and measurement of a reference signal for beam measurement according to an embodiment of this disclosure is shown. The process includes at least the following operations: Operation 902: The base station provides the UE with the number N of transmit beams and the configuration of reference signals for beam measurement, including the number M of reference signals.

[0061] Operation 904: The base station provides the UE with measurement matrix information.

[0062] Operation 906: The base station sends a reference signal to the UE for beam measurement.

[0063] Operation 908: The UE receives and measures the reference signal used for beam measurement and obtains the measurement results.

[0064] Operation 910: The UE recovers the beam quality of all N transmitted beams based on the measurement results and the provided measurement matrix.

[0065] Operation 912: The UE calculates the reporting quantity based on the measurement results and / or the full beam quality information recovered from all N transmit beams.

[0066] Operation 914: The UE reports the requested amount of data to the base station.

[0067] Figure 9 An example of the transmission and measurement of a reference signal for beam measurement based on compressed sensing theory as proposed in this disclosure is shown. Figure 9 As shown, the base station first provides the UE with the number of transmit beams and the configuration of reference signals used for beam measurement. The number of transmit beams is denoted as N, and the number of reference signals used for beam measurement is denoted as M, where M can be significantly smaller than N. For example, N can be 256 and M can be 32, resulting in a reduction of the resource overhead of the reference signals used for beam measurement to 1 / 8 of the original.

[0068] The base station then provides the UE with information about the measurement matrix used to transmit the reference signals. This measurement matrix maps M reference signals to N transmit beams. The base station can provide a list of measurement matrices used for beam measurement and indicate one of these matrices to the UE. The base station then applies the indicated measurement matrix to the transmission of the reference signals used for beam measurement.

[0069] Subsequently, the base station transmits reference signals for beam measurement, mapping them to N transmit beams using a measurement matrix. The UE is then configured to receive and measure the reference signals as instructed. Upon obtaining measurement results from the reference signals, the UE can be requested to use the measurement results and the provided measurement matrix to recover complete beam quality information for all N transmit beams.

[0070] Based on this information, the UE uses the measurement results or the beam quality information of the fully recovered N transmitted beams to calculate the required beam reporting amount. Then, according to the configuration, the UE reports the calculated beam reporting amount to the base station.

[0071] Figure 9 This paper demonstrates a beam measurement process that significantly reduces resource overhead using compressed sensing. The base station provides the UE with the number of transmit beams (N), the configuration of the reference signal (M, where M is much smaller than N), and a measurement matrix that maps the reference signal to the transmit beams. The base station transmits the reference signal, and the UE measures the reference signal to recover the full beam quality information for all N transmit beams using the measurement matrix. Based on these results, the UE calculates the required beam quality metric and reports the required beam quality metric to the base station, thereby ensuring efficient beam measurement with minimal resource usage.

[0072] In summary, in some embodiments, the proposed method enables a system to measure the quality of multiple transmitted beams using only a minimal number of reference signals. This significantly reduces the resource overhead required to transmit reference signals during beam training.

[0073] Some implementations offer the following commercial benefits: 1. Solving problems and other issues in the prior art. 2. Supporting systems that measure the quality of many transmitted beams based on very few reference signals. 3. Reducing resource overhead. 4. Providing good communication performance. 5. Providing high reliability. Some embodiments of this disclosure can be used in many applications. Some embodiments of this disclosure are used by chipset suppliers, video system development suppliers, automobile manufacturers including cars, trains, trucks, buses, bicycles, motorcycles, helmets, etc., drones (unmanned aerial vehicles), smartphone manufacturers, communication equipment for public safety purposes, and AR / VR / MR device manufacturers (e.g., for gaming, conferences / seminars, educational purposes). Some embodiments of this disclosure are combinations of "technologies / processes" that can be adopted in video standards to create end products. Some embodiments of this disclosure present technical mechanisms. At least one proposed solution, method, system, and apparatus of some embodiments of this disclosure can be used in current and / or new / future standards relating to communication systems (such as UEs, base stations, and / or communication systems). Compatible products follow at least one proposed solution, method, system, and apparatus of some embodiments of this disclosure. The proposed solutions, methods, systems, and apparatus are widely used in UEs, base stations, and / or communication systems. Utilizing the implementation of at least one of the proposed solutions, methods, systems, and apparatuses of some embodiments of this disclosure, at least one modification to the methods and apparatuses for wireless communication is considered for standardization.

[0074] Figure 10 This is an example of a computing device 1100 according to embodiments of the present disclosure. Any suitable computing device can be used to perform the operations described herein. For example, Figure 10 It demonstrates that this can be achieved using any suitably configured hardware and / or software. Figures 1 to 9 Examples of computing devices 1100 in some embodiments are provided. In some embodiments, computing device 1100 may include processor 1112 communicatively coupled to memory 1114 and executing computer-executable program code and / or accessing information stored in memory 1114. Processor 1112 may include a microprocessor, application-specific integrated circuit (“ASIC”), state machine, or other processing device. Processor 1112 may include any one of a plurality of processing devices, including one. Such a processor may include or be able to communicate with a computer-readable medium storing instructions that, when executed by processor 1112, cause the processor to perform the operations described herein.

[0075] Memory 1114 may include any suitable non-transitory computer-readable medium. Computer-readable media may include any electronic, optical, magnetic, or other storage device capable of providing computer-readable instructions or other program code to a processor. Non-limiting examples of computer-readable media include disks, memory chips, read-only memory (ROM), random access memory (RAM), application-specific integrated circuits (ASICs), configured processors, optical storage devices, magnetic tape or other magnetic storage devices, or any other medium from which instructions can be read by a computer processor. Instructions may include processor-specific instructions generated by a compiler and / or interpreter from code written in any suitable computer programming language, including, for example, C, C++, C#, Visual Basic, Java, Python, Perl, JavaScript, and ActionScript.

[0076] The computing device 1100 may also include a bus 1116. The bus 1116 may communicatively couple one or more components of the computing device 1100. The computing device 1100 may also include multiple external or internal devices, such as input or output devices. For example, the computing device 1100 is shown having an input / output (“I / O”) interface 1118 that can receive input from one or more input devices 1120 or provide output to one or more output devices 1122. One or more input devices 1120 and one or more output devices 1122 may be communicatively coupled to the I / O interface 1118. The communicative coupling may be implemented via any suitable means (e.g., via a connection to a printed circuit board, via a cable, via wireless communication, etc.). Non-limiting examples of the input device 1120 include a touchscreen (e.g., one or more cameras for imaging a touch area or a pressure sensor for detecting pressure changes caused by a touch), a mouse, a keyboard, or any other device that can be used to generate input events in response to physical actions of a user of the computing device. Non-limiting examples of output device 1122 include liquid crystal display (LCD) screens, external monitors, speakers, or any other device that can be used to display or otherwise present output generated by a computing device.

[0077] Computing device 1100 can configure processor 1112 to perform the above-mentioned... Figures 1 to 9 The program code describes one or more operations in some embodiments. The program code may reside in memory 1114 or any suitable computer-readable medium and may be executed by processor 1112 or any other suitable processor.

[0078] The computing device 1100 may also include at least one network interface device 1124. The network interface device 1124 may include any device or group of devices adapted to establish wired or wireless data connections to one or more data networks 1128. Non-limiting examples of the network interface device 1124 include Ethernet network adapters, modems, etc. The computing device 1100 may transmit messages as electronic or optical signals via the network interface device 1124.

[0079] Figure 11 This is a block diagram of an example communication system 1200 according to embodiments of the present disclosure. The embodiments described herein can be implemented in the communication system 1200 using any appropriately configured hardware and / or software. Figure 11 A communication system 1200 is shown, which includes at least radio frequency (RF) circuitry 1210, baseband circuitry 1220, application circuitry 1230, memory / storage device 1240, display 1250, camera 1260, sensor 1270, and input / output (I / O) interface 1280, all of which are coupled to each other as shown.

[0080] Application circuitry 1230 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor may include any combination of general-purpose processors and special-purpose processors (such as graphics processors, application processors). The processor may be coupled to a memory / storage device and configured to execute instructions stored in the memory / storage device to enable various applications and / or operating systems running on the system. Communication system 1200 may configure application circuitry 1230 to perform the above-described... Figures 1 to 9 The program code describes one or more operations in some embodiments of the operation. The program code may reside in application circuit 1230 or any suitable computer-readable medium and may be executed by application circuit 1230 or any other suitable processor.

[0081] The baseband circuit 1220 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor may include a baseband processor. The baseband circuitry can handle various radio control functions that enable communication with one or more radio networks via RF circuitry. Radio control functions may include, but are not limited to, signal modulation, encoding, decoding, and radio frequency shifting. In some embodiments, the baseband circuitry can provide communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry may support communication with the Evolved Universal Terrestrial Radio Access Network (EUTRAN) and / or other Wireless Metropolitan Area Networks (WMAN), Wireless Local Area Networks (WLAN), and Wireless Personal Area Networks (WPAN). Embodiments in which the baseband circuitry is configured to support radio communication with more than one radio protocol may be referred to as a multi-mode baseband circuitry.

[0082] In various embodiments, baseband circuit 1220 may include circuitry for operating with signals not strictly considered to be at baseband frequencies. For example, in some embodiments, the baseband circuitry may include circuitry for operating with signals having an intermediate frequency (IF), which is between the baseband frequency and the radio frequency (RF). RF circuit 1210 may use modulated electromagnetic radiation through a non-solid-state medium to achieve communication with a wireless network. In various embodiments, RF circuitry may include switches, filters, amplifiers, etc., to facilitate communication with a wireless network. In various embodiments, RF circuitry 1210 may include circuitry for operating with signals not strictly considered to be at the radio frequency (RF). For example, in some embodiments, RF circuitry may include circuitry for operating with signals having an intermediate frequency (IF), which is between the baseband frequency and the RF frequency.

[0083] In various embodiments, the above regarding Figures 1 to 9 The transmitter circuitry, control circuitry, or receiver circuitry discussed in some embodiments may be wholly or partially embodied in one or more of the RF circuitry, baseband circuitry, and / or application circuitry. As used herein, “circuit” may refer to, be part of, or include application-specific integrated circuits (ASICs), electronic circuitry, processors (shared, dedicated, or grouped) and / or memories (shared, dedicated, or grouped), combinational logic circuitry, and / or other suitable hardware components that provide the described functionality, executing one or more software or firmware programs. In some embodiments, electronic device circuitry may be implemented in one or more software or firmware modules, or the functionality associated with the circuitry may be implemented by one or more software or firmware modules. In some embodiments, some or all of the components of the baseband circuitry, application circuitry, and / or memory / storage device may be implemented together on a system-on-a-chip (SOC). Memory / storage device 1240 may be used to load and store, for example, data and / or instructions for the system. Memory / storage device for one embodiment may include any combination of suitable volatile memory (such as dynamic random access memory (DRAM)) and / or non-volatile memory (such as flash memory).

[0084] In various embodiments, I / O interface 1280 may include one or more user interfaces designed to enable a user to interact with the system and / or peripheral component interfaces designed to enable peripheral components to interact with the system. User interfaces may include, but are not limited to, physical keyboards or keypads, touchpads, speakers, microphones, etc. Peripheral component interfaces may include, but are not limited to, non-volatile memory ports, universal serial bus (USB) ports, audio jacks, and power interfaces. In various embodiments, sensor 1270 may include one or more sensing devices to determine environmental conditions and / or location information relevant to the system. In some embodiments, sensors may include, but are not limited to, gyroscope sensors, accelerometers, proximity sensors, ambient light sensors, and positioning units. Positioning units may also be part of or interact with baseband and / or RF circuitry to communicate with components of a positioning network (e.g., Global Positioning System (GPS) satellites).

[0085] In various embodiments, display 1250 may include a display, such as a liquid crystal display (LCD) and a touchscreen display. In various embodiments, communication system 1200 may be a mobile computing device, such as, but not limited to, a laptop, tablet, netbook, ultrabook, smartphone, AR / VR glasses, etc. In various embodiments, the system may have more or fewer components and / or different architectures. Where appropriate, the methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium.

[0086] Those skilled in the art will understand that each unit, algorithm, and operation described and disclosed in the embodiments of this disclosure is implemented using electronic hardware or a combination of computer software and electronic hardware. Whether a function operates in hardware or software depends on the application conditions and the design requirements of the technical solution. Those skilled in the art can implement the function for each specific application in different ways, and such implementation should not exceed the scope of this disclosure. Those skilled in the art will understand that since the working processes of the above-described systems, devices, and units are substantially the same, they can refer to the working processes of the systems, devices, and units in the above embodiments. For ease of description and simplification, these working processes will not be described in detail again.

[0087] It should be understood that the systems, devices, and methods disclosed in the embodiments of this disclosure can be implemented in other ways. The above embodiments are merely exemplary. The division of units is based solely on logical function, while other divisions exist in the implementation. Multiple units or components can be combined or integrated into another system. It is also possible to omit or skip some features. On the other hand, the mutual coupling, direct coupling, or communication coupling shown or discussed operates indirectly or communicatively through some ports, devices, or units in an electrical, mechanical, or other form.

[0088] The units used for illustration may or may not be physically separate. The units used for display may or may not be physical units, i.e., located in one location or distributed across multiple network units. Some or all of the units may be used depending on the purpose of the embodiment. Furthermore, each functional unit in each embodiment may be integrated into a processing unit, or physically independent, or integrated into a processing unit having two or more units.

[0089] If a software functional unit is implemented and used and sold as a product, it can be stored in a readable storage medium in a computer. Based on this understanding, the technical solutions proposed in this disclosure can be implemented substantially or partially in the form of a software product. Alternatively, a portion of the technical solution that is beneficial to conventional technology can be implemented in the form of a software product. The software product in the computer is stored in a storage medium and includes multiple commands for a computing device (such as a personal computer, server, or network device) to perform all or part of the operations disclosed in the embodiments of this disclosure. The storage medium includes a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other types of media capable of storing program code.

[0090] While this disclosure has been described in conjunction with what are considered to be the most practical and preferred embodiments, it should be understood that this disclosure is not limited to the disclosed embodiments, but is intended to cover various arrangements made without departing from the broadest interpretation of the appended claims.

Claims

1. A wireless communication method, performed by a user equipment (UE), comprising: Receives multiple transmit beams from the base station; as well as The configuration for receiving reference signals for beam measurement from the base station, wherein the number of transmitted beams is N and the number of reference signals for beam measurement is M, where M is less than N.

2. The method according to claim 1, wherein N is 256 and M is 32.

3. The method according to claim 1 or 2, further comprising: Information about a measurement matrix is ​​received from the base station, wherein the information about the measurement matrix is ​​applied to the transmission of M reference signals for beam measurement, and the information about the measurement matrix maps the M reference signals for beam measurement to the N transmit beams.

4. The method according to any one of claims 1 to 3, further comprising: Receive a list of measurement matrices from the base station; as well as Use the indicated measurement matrix to process the M reference signals used for beam measurement.

5. The method according to claim 4, further comprising: The base station receives the M reference signals for beam measurement, wherein the M reference signals for beam measurement are mapped to the N transmit beams by an indicated measurement matrix.

6. The method according to any one of claims 1 to 5, further comprising: The system is requested to receive and measure M reference signals.

7. The method according to claim 6, further comprising: After obtaining the measurement results from the M reference signals used for beam measurement, the UE is requested to recover the full beam quality information of the N transmitted beams based on the measurement results and / or the indicated measurement matrix.

8. The method according to claim 7, further comprising: The beam reporting quantity is calculated based on the measurement results and / or the full beam quality information of the N transmitted beams.

9. The method according to claim 8, further comprising: Report the beam report quantity to the base station.

10. A method for wireless communication, performed by a base station, comprising: Send multiple transmit beams to the user equipment (UE); as well as A configuration for sending reference signals for beam measurement to the UE, wherein the number of transmitted beams is N, and the number of reference signals for beam measurement is M, where M is less than N.

11. The method of claim 10, wherein N is 256 and M is 32.

12. The method according to claim 10 or 11, further comprising: Information about a measurement matrix is ​​sent to the UE, wherein the information about the measurement matrix is ​​applied to the transmission of M reference signals for beam measurement, and the information about the measurement matrix maps the M reference signals for beam measurement to the N transmit beams.

13. The method according to any one of claims 10 to 12, further comprising: Send a list of measurement matrices to the UE; For beam measurement, one of the measurement matrices is indicated to the UE; as well as The indicated measurement matrix is ​​applied to the transmission of the M reference signals used for beam measurement.

14. The method of claim 13, further comprising: Send the M reference signals for beam measurement to the UE; as well as The M reference signals used for beam measurement are mapped to the N transmit beams using the indicated measurement matrix.

15. The method according to any one of claims 10 to 14, further comprising: The UE is requested to receive and measure the M reference signals.

16. The method of claim 15, further comprising: The measurement results of the M reference signals used for beam measurement are received from the UE. as well as The UE is requested to recover the full beam quality information of the N transmit beams based on the measurement results and / or the indicated measurement matrix.

17. The method of claim 16, further comprising: The UE is requested to calculate the beam report quantity based on the measurement results and / or the full beam quality information of the N transmitted beams.

18. The method of claim 17, further comprising: The beam report quantity is received from the UE.

19. A user equipment (UE), comprising: A receiver is configured to receive from a base station a plurality of transmit beams and reference signals for beam measurement, wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N.

20. A base station, comprising: A transmitter configured to send multiple transmit beams and reference signals for beam measurement to a user equipment (UE), wherein the number of transmit beams is N and the number of reference signals for beam measurement is M, where M is less than N.

21. A user equipment (UE), comprising: Memory; transceiver; as well as A processor coupled to the memory and the transceiver; The UE is configured to perform the method according to any one of claims 1 to 9.

22. A base station, comprising: Memory; transceiver; as well as A processor coupled to the memory and the transceiver; The base station is configured to perform the method according to any one of claims 10 to 18.

23. A non-transitory machine-readable storage medium having instructions stored thereon, the instructions causing the computer to perform the method according to any one of claims 1 to 18 when executed by the computer.

24. A chip, comprising: The processor is configured to invoke and run a computer program stored in memory to cause a device on which the chip is mounted to perform the method according to any one of claims 1 to 18.

25. A computer-readable storage medium storing a computer program, wherein, The computer program causes the computer to perform the method according to any one of claims 1 to 18.

26. A computer program product comprising a computer program, wherein, The computer program causes the computer to perform the method according to any one of claims 1 to 18.

27. A computer program, wherein, The computer program causes the computer to perform the method according to any one of claims 1 to 18.

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