Apparatus and method of wireless communication
By configuring multiple beam reference signals on the same time and frequency resource, the method addresses the high overhead and latency issues in beam measurement and reporting, improving system efficiency and communication performance.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2026-04-02
AI Technical Summary
Current wireless communication systems face high overhead and latency in beam measurement and reporting due to the need for numerous channel state information reference signal (CSI-RS) resources for beam training, especially in systems with a large number of transmit beams.
Configuring multiple beam reference signals corresponding to different transmit beams on the same time and frequency resource, allowing for superimposed transmission and reducing the radio resource overhead.
This approach significantly reduces resource overhead and latency in beam management operations, enhancing system efficiency and communication performance.
Smart Images

Figure CN2024120800_02042026_PF_FP_ABST
Abstract
Description
APPARATUS AND METHOD OF WIRELESS COMMUNICATIONTECHNICAL FIELD
[0001] The present disclosure relates to the field of communication systems, and more particularly, to apparatuses and methods of wireless communication.BACKGROUND
[0002] A drawback of current method of beam measurement and reporting is huge overhead of time-frequency resource needed for channel state information reference signal (CSI-RS) resources for beam training. To support system with large number of transmit beams, large number of CSI-RS resources for beam management would be needed. That results in large overhead of resources and also cause large latency of beam measurement and reporting.
[0003] Therefore, there is a need for apparatuses and methods of wireless communication.SUMMARY
[0004] An object of the present disclosure is to propose apparatuses and methods of wireless communication, which can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0005] In a first aspect of the present disclosure, a method of wireless communication of a user equipment (UE) includes receiving a configuration of beam reference signal from a base station, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource, and receiving a configuration of one or more beam reference signal resources from the base station.
[0006] In a second aspect of the present disclosure, a UE includes a receiver. The receiver is configured to receive a configuration of beam reference signal and a configuration of one or more beam reference signal resources from a base station, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource, and receiving a configuration of one or more beam reference signal resources from the base station.
[0007] In a third aspect of the present disclosure, a UE includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The UE is configured to perform the above method.
[0008] In a fourth aspect of the present disclosure, a method of wireless communication of a base station includes transmitting, to a user equipment (UE) , a configuration of beam reference signal, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource, and transmitting, to the UE, a configuration of one or more beam reference signal resources.
[0009] In a fifth aspect of the present disclosure, a base station includes a transmitter. The transmitter is configured to transmit, to a user equipment (UE) , a configuration of beam reference signal and a configuration of one or more beam reference signal resources, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource, and receiving a configuration of one or more beam reference signal resources from the base station.
[0010] In a sixth aspect of the present disclosure, a 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 method.
[0011] In a seventh aspect of the present disclosure, a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method.
[0012] In an eighth aspect of the present disclosure, a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method.
[0013] In a ninth aspect of the present disclosure, a computer readable storage medium, in which a computer program is stored, causes a computer to execute the above method.
[0014] In a tenth aspect of the present disclosure, a computer program product includes a computer program, and the computer program causes a computer to execute the above method.
[0015] In an eleventh aspect of the present disclosure, a computer program causes a computer to execute the above method.BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to illustrate the embodiments of the present disclosure or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present disclosure, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise.
[0017] FIG. 1A is a schematic diagram of an example of multi-transmission / reception point (TRP) based non-coherent joint transmission.
[0018] FIG. 1B is a schematic diagram of another example of multi-TRP transmission.
[0019] FIG. 2 is a block diagram of one or more user equipments (UEs) and a base station of communication in a communication network system according to an embodiment of the present disclosure.
[0020] FIG. 3 is a block diagram of a UE according to an embodiment of the present disclosure.
[0021] FIG. 4 is a block diagram of a UE according to an embodiment of the present disclosure.
[0022] FIG. 5 is a flowchart illustrating a method of wireless communication performed by a UE according to an embodiment of the present disclosure.
[0023] FIG. 6 is a block diagram of a base station according to an embodiment of the present disclosure.
[0024] FIG. 7 is a block diagram of a base station according to an embodiment of the present disclosure.
[0025] FIG. 8 is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure.
[0026] FIG. 9 is a block diagram of an example of a computing device according to an embodiment of the present disclosure.
[0027] FIG. 10 is a block diagram of a communication system according to an embodiment of the present disclosure.DETAILED DESCRIPTION OF EMBODIMENTS
[0028] Embodiments of the present disclosure are described in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. Specifically, the terminologies in the embodiments of the present disclosure are merely for describing the purpose of the certain embodiment, but not to limit the disclosure.
[0029] The technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS) , a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a new radio (NR) system, an evolution system of a NR system, a LTE-based access to unlicensed spectrum (LTE-U) system, a NR-based access to unlicensed spectrum (NR-U) system, an universal mobile telecommunication system (UMTS) , a global interoperability for microwave access (WiMAX) communication system, wireless local area networks (WLAN) , wireless fidelity (Wi-Fi) , a future 5th generation (5G) system (may also be called a new radio (NR) system) or other communication systems, etc.
[0030] Optionally, a base station mentioned in the embodiments of the present application can provide a communication coverage for a specific geographic area and can communicate with a user equipment (UE) located in the coverage area. Optionally, the base station may be a gNB, a base transceiver station (BTS) in the GSM or in the CDMA system, or may be a NodeB (NB) in the WCDMA system, or may be an evolutional Node B (eNB or eNodeB) in the LTE system, or a radio controller in a cloud radio access network (CRAN) .
[0031] A user equipment (UE) may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal may be a cellular radio telephone, a cordless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL) station, a personal digital assistant (PDA) , a handheld device with wireless communication functions, a computing device, other processing devices coupled with a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, a terminal device in a future evolved public land mobile network (PLMN) , etc.
[0032] Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where the licensed spectrum can also be considered an unshared spectrum.
[0033] New radio (NR) system introduces multi-transmission / reception point (TRP) based non-coherent joint transmission and also coherent joint transmission. In non-coherent joint transmission, multiple TRPs are connected through one or more backhaul links for coordination. The backhaul link can be ideal or non-ideal. In the case of ideal backhaul communication, the TRPs can exchange dynamic physical downlink shared channel (PDSCH) scheduling information with short latency and thus different TRPs can coordinate the PDSCH transmission per PDSCH transmission. While, in the case of non-ideal backhaul communication, the information exchange between TRPs has an undesirable latency, and thus, the coordination between TRPs can only be semi-static or static.
[0034] In non-coherent joint transmission, different TRPs use different physical downlink control channels (PDCCHs) to schedule the PDSCH transmission independently. Each TRP can send one downlink control information (DCI) on the PDCCH to schedule one PDSCH transmission. PDSCHs from different TRPs can be scheduled in the same slot or different slots. Two different PDSCH transmissions from different TRPs can be fully overlapped or partially overlapped in PDSCH resource allocation.
[0035] To support multi-TRP based non-coherent joint transmission, a user equipment (UE) is requested to receive PDCCH from multiple TRPs, and then, receive PDSCH sent from multiple TRPs. For each PDSCH transmission, the UE can feedback a hybrid automatic repeat request (HARQ) -acknowledgement (ACK) information to the network. In multi-TRP transmission, the UE can feedback the HARQ-ACK information for each PDSCH transmission to the TRP transmitting the PDSCH. The UE can also feedback the HARQ-ACK information for a PDSCH transmission sent from any TRP to one particular TRP.
[0036] An example of multi-TRP based non-coherent joint transmission is illustrated in FIG. 1A. A UE receives a PDSCH based on non-coherent joint transmission from two TRPs: TRP1 and TRP2. As illustrated in FIG. 1A, the TRP1 sends one downlink control information (DCI) to schedule the transmission of PDSCH1 to the UE, and TRP2 sends one DCI to schedule the transmission of PDSCH2 to the UE. At the UE side, the UE receives and decodes the DCI from both TRPs. Based on the DCI from TRP1, the UE receives and decodes PDSCH1, and based on the DCI from TRP2, the UE receives and decodes PDSCH2. In the example illustrated in FIG. 1A, the UE reports HARQ-ACK for PDSCH1 and PDSCH2 to the TRP1 and TRP2, respectively. TRP1 and TRP2 use different control resource sets (CORESETs) and search spaces to transmit DCI scheduling PDSCH transmission to the UE. Therefore, a network can configure multiple CORESETs and search spaces. Each TRP can be associated with one or more CORESETs and also the related search spaces. With such a configuration, the TRP would use the associated CORESET to transmit DCI to schedule a PDSCH transmission to the UE. The UE can be requested to decode the DCI in CORESETs associated with either TRP to obtain PDSCH scheduling information.
[0037] Another example of multi-TRP transmission is illustrated in FIG. 1B. A UE receives a PDSCH based on non-coherent joint transmission from two TRPs: TRP1 and TRP2. As illustrated in FIG. 1B, the TRP1 sends one DCI to schedule the transmission of PDSCH1 to the UE, and TRP2 sends one DCI to schedule the transmission of PDSCH2 to the UE. At the UE side, the UE receives and decodes the DCI from both TRPs. Based on the DCI from TRP1, the UE receives and decodes PDSCH1, and based on the DCI from TRP2, the UE receives and decodes PDSCH 2. In the example illustrated in FIG. 1B, the UE reports HARQ-ACK for both PDSCH1 and PDSCH2 to the TRP, which is different from the HARQ-ACK reporting in the example illustrated in FIG. 1A. The example shown in FIG. 1B needs ideal backhaul between TRP 1 and TRP 2, while the example illustrated in FIG. 1A can be deployed in the scenarios that the backhaul between TRP1 and TRP2 is ideal or non-ideal.
[0038] NR supports the function of timing advance for uplink transmission, where a base station such as gNB sends a special command to a UE to enable the UE to adjust its uplink (UL) transmission so that the uplink transmission arrives at the gNB side at the right timing. Such UL adjustment applies to physical uplink shared channel (PUSCH) , physical uplink control channel (PUCCH) , and sounding reference signal (SRS) transmission. The timing advance information is delivered to a UE through two methods. The first method is a random access channel (RACH) response (RAR) . The gNB can indicate one timing advance value in the RAR message to the UE.The second method is a medium access control (MAC) control element (CE) command. The gNB can indicate one timing advance value in a MAC CE command, and upon receiving the MAC CE command, the UE can be requested to apply the indicated timing advance value.
[0039] NR / 5G system supports FR2 (frequency range 2) operation. The NR system in FR2 may be a multi-beam-based system, where a base station such as a gNB has multiple downlink transmission (Tx) beams that are available for downlink transmission and the UE could have multiple receive (Rx) beam available for downlink transmission reception. For the uplink transmission, a UE may have multiple Tx beams available for transmission, and the gNB has multiple uplink Rx beams that are available for uplink reception. To support proper communication, the gNB and the UE may find the best pair of gNB Tx beam and UE Rx beam. The NR introduces beam measurement and reporting in channel state information (CSI) framework to support the selection of best Tx beam and Rx beam. The NR also supports the functions of beam indication for downlink reception and uplink transmission. The gNB can indicate the information of Tx beam of physical downlink control channel (PDCCH) and physical downlink shared channel (PDSCH) to the UE to assist the downlink reception at the UE side. The gNB can also indicate the information of Tx beam of physical uplink shared channel (PUSCH) , physical uplink control channel (PUCCH) , and sounding reference signal (SRS) to the UE to indicate the UE about how to transmit the PUSCH, PUCCH, and SRS.
[0040] The NR / 5G systems implement the function of beam indication through the signaling of TCI states. The UE can be first provided with a list of joint TCI states or a list of DL TCI states and a list of UL TCI states. Each joint TCI state can provide the configuration information of quasi co-location (QCL) typeD for downlink reception (where the QCL typeD provides the spatial Rx parameter for downlink reception) and reference information of UL Tx spatial filter for uplink transmission. Each joint TCI state can be associated with a set of uplink power control parameters, including P0, alpha, index of closed loop power control and the pathloss RS. Each DL TCI state can provide the configuration information of QCL typeD for downlink reception. Each UL TCI state can provide the reference information of UL Tx spatial filter for uplink transmission and each UL TCI state can also be associated with a set of uplink power control parameters, including P0, alpha, index of closed loop, and pathloss reference signal (RS) .
[0041] The gNB can indicate on joint TCI state or a pair of DL TCI states and UL TCI states to the UE through a DCI signaling. When the UE receives a downlink control information (DCI) signaling for TCI state indication, the UE feedbacks one acknowledge (ACK) to the gNB. Then the indicated TCI state (s) can be applied starting from the first slot that is at least beamAppTime symbols after the last symbols of the PUCCH or PUSCH that carries the ACK. From the information of QCL TypeD in the indicated TCI state, the UE would derive the Rx beam for receiving the PDCCH and PDSCH. From the information of UL Tx spatial filter in the indicated TCI state, the UE would derive the Tx beam for transmitting the PUSCH, PUCCH and / or SRS. From the indicated TCI state, the UE would derive the uplink power control parameters and pathloss RS and then calculate the uplink transmit power for the PUSCH, PUCCH, and / or SRS transmission.
[0042] To support the system to choose proper TCI states, the NR specification also supports the functions of beam measurement and reporting. The system can configure the UE to measure a set of reference signals, such as channel state information reference signal (CSI-RS) resources and / or SS / PBCH blocks and the UE can be requested to report the measurement results to the system. The reported measurement result can include the indicator of selected CSI-RS resource or synchronization signal and physical broadcast channel (SS / PBCH) and the corresponding layer 1 reference signal received power (L1-RSRP) or layer 1 signal to interference noise ratio (L1-SINR) measurement.
[0043] A drawback of current method of beam measurement and reporting is huge overhead of time-frequency resource needed for channel state information reference signal (CSI-RS) resources for beam training. To support system with large number of transmit beams, large number of CSI-RS resources for beam management would be needed. That results in large overhead of resources and also cause large latency of beam measurement and reporting.
[0044] To overcome these and other challenges, some embodiments of the present disclosure provide some solutions for superimposed beam reference signal and the beam measurement based on superimposed beam reference signal.
[0045] FIG. 2 illustrates that, in some embodiments, one or more user equipments (UEs) 10 and a base station (e.g., next generation NodeB (gNB) or eNB) 20 of communication in a communication network system 30 (e.g., an NR system) according to an embodiment of the present disclosure are provided. The communication network system 30 includes the one or more UEs 10 and the base station 20. The one or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23. The processor 11 or 21 may be configured to implement proposed functions, procedures and / or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and / or receives a radio signal.
[0046] The processor 11 or 21 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and / or data processing device. The memory 12 or 22 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and / or other storage device. The transceiver 13 or 23 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21. The memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.
[0047] In some embodiments, the transceiver 13 is configured to receive a configuration of beam reference signal and a configuration of one or more beam reference signal resources from the base station 20, wherein each beam reference signal corresponds to one or more transmit beams of the base station 20, and multiple beam reference signals corresponding to different transmit beams of the base station 20 are configured on a same time and frequency resource. This can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0048] In some embodiments, the transceiver 23 is configured to transmit, to the UE 10, a configuration of beam reference signal and a configuration of one or more beam reference signal resources, wherein each beam reference signal corresponds to one or more transmit beams of the base station 20, and multiple beam reference signals corresponding to different transmit beams of the base station 20 are configured on a same time and frequency resource. This can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0049] FIG. 3 illustrates an example of a UE 200 according to an embodiment of the present application. The UE 200 is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the UE 200 using any suitably configured hardware and / or software. The UE 200 includes a receiver 201. The receiver 201 is configured to receive a configuration of beam reference signal and a configuration of one or more beam reference signal resources from a base station, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource. This can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0050] FIG. 4 illustrates an example of a UE 300 according to an embodiment of the present disclosure. The UE 300 is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into 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 proposed functions, procedures and / or methods described in this description. Layers of radio interface protocol may be implemented in the processor 303. The memory 301 is operatively coupled with the processor 303 and stores a variety of information to operate the processor 303. The transceiver 302 is operatively coupled with the processor 303, and the transceiver 302 transmits and / or receives a radio signal. The processor 303 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and / or data processing device. The memory 301 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and / or other storage device. The transceiver 302 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 301 and executed by the processor 303. The memory 301 can be implemented within the processor 303 or external to the processor 303 in which case those can be communicatively coupled to the processor 303 via various means as is known in the art.
[0051] In some embodiments, the transceiver 302 is configured to receive a configuration of beam reference signal and a configuration of one or more beam reference signal resources from a base station, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource. This can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0052] FIG. 5 is an example of a method 400 of wireless communication performed by a UE according to an embodiment of the present disclosure. The method 400 of wireless communication performed by a UE is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the method 400 of wireless communication performed by a UE using any suitably configured hardware and / or software. In some embodiments, the method 400 of wireless communication performed by a UE includes: an operation 402, receiving a configuration of beam reference signal from a base station, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource, and an operation 404, receiving a configuration of one or more beam reference signal resources from the base station. This can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0053] In some embodiments, different beam reference signals are configured to transmit different sequences. In some embodiments, the one or more beam reference signal resources includes one or more channel state information reference signal (CSI-RS) resources, one or more beam measurement reference signals, and / or one or more beam signals. In some embodiments, the configuration of one or more beam reference signal resources includes an allocation of time and frequency resource and / or one or more reference signal sequences contained in the beam reference signal resource. In some embodiments, the allocation of time and frequency resource includes a starting symbol index and a number of symbols allocated to the beam reference signal resource. In some embodiments, the allocation of time and frequency resource includes a starting frequency location and a length of frequency bandwidth allocation.
[0054] In some embodiments, one or more reference signal sequences are mapped to one time-frequency resource allocated to a same beam reference signal resource. In some embodiments, the method further includes measuring the one or more beam reference signal resources and reporting a measurement of the one or more beam reference signal resources. In some embodiments, measuring the one or more beam reference signal resources includes measuring a layer 1 reference signal received power (L1-RSRP) or layer 1 signal to interference noise ratio (L1-SINR) from each reference signal sequence contained in each beam reference signal resource. In some embodiments, reporting a measurement of the one or more beam reference signal resources includes one or more of the followings: reporting one L1-RSRP measurement or L1-SINR measurement, reporting one indicator used to indelicate a first beam reference signal resource and a first reference signal sequence of the first beam reference signal resource, where a corresponding L1-RSRP or L1-SINR is measured, and / or reporting N L1-RSRP measurements or N L1-SINR measurements, wherein each of which corresponds one reference signal sequence in the first beam reference signal and the UE is configured to report one indicator that indicates the first beam reference signal resource.
[0055] FIG. 6 illustrates an example of base station 500 according to an embodiment of the present application. The base station 500 is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the base station 500 using any suitably configured hardware and / or software. The base station 500 includes a transmitter 501. The transmitter 501 is configured to transmit, to a user equipment (UE) , a configuration of beam reference signal and a configuration of one or more beam reference signal resources, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource. This can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0056] FIG. 7 illustrates an example of a base station 600 according to an embodiment of the present disclosure. The base station 600 is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the base station 600 using any suitably 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 proposed functions, procedures and / or methods described in this description. Layers of radio interface protocol may be implemented in the processor 603. The memory 601 is operatively coupled with the processor 603 and stores a variety of information to operate the processor 603. The transceiver 602 is operatively coupled with the processor 603, and the transceiver 602 transmits and / or receives a radio signal. The processor 603 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and / or data processing device. The memory 601 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and / or other storage device. The transceiver 602 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 601 and executed by the processor 603. The memory 601 can be implemented within the processor 603 or external to the processor 603 in which case those can be communicatively coupled to the processor 603 via various means as is known in the art.
[0057] In some embodiments, the transceiver 602 is configured to transmit, to a user equipment (UE) , a configuration of beam reference signal and a configuration of one or more beam reference signal resources, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource. This can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0058] FIG. 8 is an example of a method 700 of wireless communication performed by a base station according to an embodiment of the present disclosure. The method 700 of wireless communication performed by the base station is configured to implement some embodiments of the disclosure. Some embodiments of the disclosure may be implemented into the method 700 of wireless communication performed by the base station using any suitably configured hardware and / or software. In some embodiments, the method 700 of wireless communication performed by the base station includes: an operation 702, transmitting, to a user equipment (UE) , a configuration of beam reference signal, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource, and an operation 704, transmitting, to the UE, a configuration of one or more beam reference signal resources. This can solve issues in the prior art and other issues, support superimposed transmission of beam reference signal, reduce a radio resource overhead of reference signal used for beam management operation, and / or boost a system efficiency.
[0059] In some embodiments, different beam reference signals are configured to transmit different sequences. In some embodiments, the one or more beam reference signal resources includes one or more channel state information reference signal (CSI-RS) resources, one or more beam measurement reference signals, and / or one or more beam signals. In some embodiments, the configuration of one or more beam reference signal resources includes an allocation of time and frequency resource and / or one or more reference signal sequences contained in the beam reference signal resource. In some embodiments, the allocation of time and frequency resource includes a starting symbol index and a number of symbols allocated to the beam reference signal resource. In some embodiments, the allocation of time and frequency resource includes a starting frequency location and a length of frequency bandwidth allocation.
[0060] In some embodiments, one or more reference signal sequences are mapped to one time-frequency resource allocated to a same beam reference signal resource. In some embodiments, the method further includes requesting the UE to measure the one or more beam reference signal resources and requesting the UE to report a measurement of the one or more beam reference signal resources. In some embodiments, requesting the UE to measure the one or more beam reference signal resources includes requesting the UE to measure a layer 1 reference signal received power (L1-RSRP) or layer 1 signal to interference noise ratio (L1-SINR) from each reference signal sequence contained in each beam reference signal resource. In some embodiments, requesting the UE to report a measurement of the one or more beam reference signal resources includes one or more of the followings: requesting the UE to report one L1-RSRP measurement or L1-SINR measurement, requesting the UE to report one indicator used to indelicate a first beam reference signal resource and a first reference signal sequence of the first beam reference signal resource, where a corresponding L1-RSRP or L1-SINR is measured, and / or requesting the UE to report N L1-RSRP measurements or N L1-SINR measurements, wherein each of which corresponds one reference signal sequence in the first beam reference signal and the base station is configured to request the UE to report one indicator that indicates the first beam reference signal resource.
[0061] Exemplary Technical Solutions:
[0062] In some embodiments, a UE can be provided with a configuration of beam reference signal. Each beam reference signal can correspond to one transmit beam of the base station. Multiple beam reference signals corresponding to different transmit beams can be configured on same time and frequency resource. Different beam reference signals can transmit different sequences. The UE can be configured with one or more beam reference signal resources. Here the beam reference signal resource is just used for exemplary explanation. It can be called other terminology, for example CSI-RS resource, beam measurement reference signal, or beam signal. For each beam reference signal resource, the UE can be provided with one or more of the following configuration information: 1. The allocation of time and frequency resource. It can include a starting symbol index and the number of symbols allocated to this beam reference signal resource. It can also include a starting frequency location and the length of frequency bandwidth allocation. 2. One or more reference signal sequences contained in this beam reference signal resource.
[0063] In some embodiments, with such configuration, one or more reference signal sequences can be mapped to the time-frequency resource allocated to one same beam reference signal resource. The UE can be configured to measure one or more beam reference signal resources. The UE can be configured to measure L1-RSRP from each reference signal sequence contained in each beam reference signal resource. The UE can be configured to measure L1-SINR from each reference signal sequence contained in each beam reference signal resource. The UE can be configured to report the L1-RSRP (or L1-SINR) measurement of beam reference signal. In one example, the UE can be requested to report: 1. One L1-RSRP measurement or one L1-SINR measurement. 2. One indicator to indelicate a first beam reference signal resource and a first reference signal sequence of the first beam reference signal resource, where the corresponding L1-RSRP or L1-SINR is measured. 3. In one example, N reference signal sequences are configured in the first beam reference signal resource. The UE can be requested to report N L1-RSRP measurement or L1-SINR measurement, each of which corresponds one reference signal sequence in the first beam reference signal and the UE can also report one indicator that indicates the first beam reference signal resource.
[0064] For one indicator to indelicate a first beam reference signal resource and a first reference signal sequence of the first beam reference signal resource: In one example, the UE can report a first indicator that indicates the first beam reference signal resource and a second indicator that indicates the first reference signal sequence. In one example, the UE can report a third indicator that can indicates the first reference signal sequence in the first beam reference signal resource.
[0065] In some embodiments, In a first method, the UE can be configured with one or more beam reference signal resource and each beam reference signal resource can correspond to one or more Tx beams. For a beam reference signal resource, the UE can be provided with one or more of the following configurations: 1. The location of slot (or subframe) : the time-domain periodicity in terms of number of slots or in terms of time such as microsecond, and the slot offset that defines the starting slot for the transmission of the beam reference signal resource. 2. The time location within one slot: it can include the index of starting symbols and a number of symbols which defines the time-domain length of this resource within one slot. 3. The frequency-domain allocation: it can include a index of starting frequency domain resource element or an index of starting frequency domain resource block and the length of frequency domain resource allocation, which can be the number of resource elements or the number of frequency domain resource blocks. 4. A symbol gap that defines the symbol pattern of this beam reference signal resource in time domain. For example, a symbol gap = 2 symbols is configured and then the symbols i, i+2, i+4, …would be allocated to this beam reference signal resource. 5. The indicators of N1 reference signal sequences for this beam reference signal resource. In one example, the UE can be provided with N1 reference signal sequence IDs. In one example, the UE can be provided with N1 scrambling IDs. In one example, the UE can be provided with one scrambling ID and N1-1 scrambling ID offsets, which the UE can be requested to derive N1 scrambling IDs which are used to generate N1 reference signal sequences.
[0066] In one example, for a first beam reference signal resource, the UE can generate the reference signals according to the following:
[0067] where the pseudo-random sequence generator for pseudo-random sequence c (i) can be initialised with at the start of each OFDM symbol where is the slot number within a radio frame, l is the OFDM symbol number within a slot, and nID equals the higher-layer parameter scramblingID and the UE can be provided with N1 nID.
[0068] In one example, the UE can be provided with the following configuration for a first beam reference signal resource: 1. The index of starting symbol within one slot: l0.2. The number of symbols allocated to the first beam reference signal resource: L. Then the reference signal sequences of the first beam reference signal resource are mapped to symbols {l0, l0+1, …, l0+L-1} .
[0069] In one example, the UE can be provided with the following configuration for a first beam reference signal resource: 1. The index of starting symbol within one slot: l0.2. The number of symbols allocated to the first beam reference signal resource: L. 3. The gap between adjacent symbols: Δ. Then the reference signal sequences of the first beam reference signal resource are mapped to symbols {l0, l0+Δ, …, l0+ (L-1) ×Δ} .
[0070] In some embodiments, in a second method, the UE can be configured to measure one or more of the beam reference signal resources which are configured according one or more of the above methods and / or examples and the UE can be requested to report measurement results of one or more reference signal sequences, where the measurement result can be L1-RSRP or L1-SINR. The UE can be provided a list of M beam reference signal resources and each beam reference signal resource can contain K reference signal sequences. The UE can be requested to report the L1-RSRP or L1-SINR measurement according to one or more of the following methods.
[0071] In some embodiments, in one method, the UE can be requested to report the L1-RSRP measurement of Tx beam. The UE can report one L1-RSRP measurement, a first indicator that indicate one of those M beam reference signal resources and a second indicator that indicate one reference signal sequence of the beam reference signal resource indicated by the first indicator. For example the first indicator = n and the second indicator = m can indicate the (m+1) -th reference signal sequence of the (n+1) -th beam reference signal resource, where the reported L1-RSRP is measured from. Here the L1-RSRP can be replaced with L1-SINR.
[0072] In some embodiments, in one method, the UE can be requested to report the L1-RSRP measurement of Tx beam. The UE can report one L1-RSRP measurement, and a third indicator that indicate one of those M beam reference signal resources one reference signal sequence of the beam reference signal resource indicated by the first indicator. For example, the third indicator = k can indicate the (k mod K+1) -th reference signal sequence of the beam reference signal resource, where the reported L1-RSRP is measured from. Here the L1-RSRP can be replaced with L1-SINR.
[0073] In summary, in some embodiments, the proposed methods can support superimposed transmission of beam reference signal. That can significantly reduce the radio resource overhead of reference signal used for beam management operation and thus it can boost the system efficiency.
[0074] Commercial interests for some embodiments are as follows. 1. Solve issues in the prior art and other issues. 2. Support superimposed transmission of beam reference signal. 3. Reduce a radio resource overhead of reference signal used for beam management operation. 4. Boost a system efficiency. 5. Provide a good communication performance. 6. Provide high reliability. Some embodiments of the present disclosure can be used in many applications. Some embodiments of the present disclosure are used by chipset vendors, video system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles) , smartphone makers, communication devices for public safety use, AR / VR / MR device maker for example gaming, conference / seminar, education purposes. Some embodiments of the present disclosure are a combination of “techniques / processes” that can be adopted in video standards to create an end product. Some embodiments of the present disclosure propose technical mechanisms. The at least one proposed solution, method, system, and apparatus of some embodiments of the present disclosure may be used for current and / or new / future standards regarding communication systems such as a UE, a base station, and / or a communication system. Compatible products follow at least one proposed solution, method, system, and apparatus of some embodiments of the present disclosure. The proposed solution, method, system, and apparatus are widely used in a UE, a base station, and / or a communication system. With the implementation of the at least one proposed solution, method, system, and apparatus of some embodiments of the present disclosure, at least one modification to methods and apparatus of wireless communication are considered for standardizing.
[0075] FIG. 9 is an example of a computing device 1100 according to an embodiment of the present disclosure. Any suitable computing device can be used for performing the operations described herein. For example, FIG. 9 illustrates an example of the computing device 1100 that can implement some embodiments of FIG. 1 to FIG. 8 using any suitably configured hardware and / or software. In some embodiments, the computing device 1100 can include a processor 1112 that is communicatively coupled to a memory 1114 and that executes computer-executable program code and / or accesses information stored in the memory 1114. The processor 1112 may include a microprocessor, an application-specific integrated circuit ( “ASIC” ) , a state machine, or other processing device. The processor 1112 can include any of a number of processing devices, including one. Such a processor can include or may be in communication with a computer-readable medium storing instructions that, when executed by the processor 1112, cause the processor to perform the operations described herein.
[0076] The memory 1114 can include any suitable non-transitory computer-readable medium. The computer-readable medium can include any electronic, optical, magnetic, or other storage device capable of providing a processor with computer-readable instructions or other program code. Non-limiting examples of a computer-readable medium include a magnetic disk, a memory chip, a read-only memory (ROM) , a random access memory (RAM) , an application specific integrated circuit (ASIC) , a configured processor, optical storage, magnetic tape or other magnetic storage, or any other medium from which a computer processor can read instructions. The instructions may include processor-specific instructions generated by a compiler and / or an interpreter from code written in any suitable computer-programming language, including, for example, C, C++, C#, visual basic, java, python, perl, javascript, and actionscript.
[0077] The computing device 1100 can also include a bus 1116. The bus 1116 can communicatively couple one or more components of the computing device 1100. The computing device 1100 can also include a number of external or internal devices such as input or output devices. For example, the computing device 1100 is illustrated with 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. The one or more input devices 1120 and one or more output devices 1122 can be communicatively coupled to the I / O interface 1118. The communicative coupling can be implemented via any suitable manner (e.g., a connection via a printed circuit board, connection via a cable, communication via wireless transmissions, etc. ) . Non-limiting examples of input devices 1120 include a touch screen (e g., one or more cameras for imaging a touch area or pressure sensors 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 by a user of a computing device. Non-limiting examples of output devices 1122 include a liquid crystal display (LCD) screen, an external monitor, a speaker, or any other device that can be used to display or otherwise present outputs generated by a computing device.
[0078] The computing device 1100 can execute program code that configures the processor 1112 to perform one or more of the operations described above with respect to some embodiments of FIG. 1 to FIG. 8. The program code may be resident in the memory 1114 or any suitable computer-readable medium and may be executed by the processor 1112 or any other suitable processor.
[0079] The computing device 1100 can also include at least one network interface device 1124. The network interface device 1124 can include any device or group of devices suitable for establishing a wired or wireless data connection to one or more data networks 1128. Non limiting examples of the network interface device 1124 include an Ethernet network adapter, a modem, and / or the like. The computing device 1100 can transmit messages as electronic or optical signals via the network interface device 1124.
[0080] FIG. 10 is a block diagram of an example of a communication system 1200 according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the communication system 1200 using any suitably configured hardware and / or software. FIG. 10 illustrates the communication system 1200 including a radio frequency (RF) circuitry 1210, a baseband circuitry 1220, an application circuitry 1230, a memory / storage 1240, a display 1250, a camera 1260, a sensor 1270, and an input / output (I / O) interface 1280, coupled with each other at least as illustrated.
[0081] The application circuitry 1230 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors. The processors may be coupled with the memory / storage and configured to execute instructions stored in the memory / storage to enable various applications and / or operating systems running on the system. The communication system 1200 can execute program code that configures the application circuitry 1230 to perform one or more of the operations described above with respect to some embodiments of FIG. 1 to FIG. 8. The program code may be resident in the application circuitry 1230 or any suitable computer-readable medium and may be executed by the application circuitry 1230 or any other suitable processor.
[0082] The baseband circuitry 1220 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include a baseband processor. The baseband circuitry may handle various radio control functions that may enable communication with one or more radio networks via the RF circuitry. The radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc. In some embodiments, the baseband circuitry may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) and / or other wireless metropolitan area networks (WMAN) , a wireless local area network (WLAN) , a wireless personal area network (WPAN) . Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry.
[0083] In various embodiments, the baseband circuitry 1220 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency. For example, in some embodiments, baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency. The RF circuitry 1210 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. In various embodiments, the RF circuitry 1210 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency. For example, in some embodiments, RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
[0084] In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to some embodiments of FIG. 1 to FIG. 8 may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and / or the application circuitry. As used herein, “circuitry” may refer to, be part of, or include an application specific integrated circuit (ASIC) , an electronic circuit, a processor (shared, dedicated, or group) , and / or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and / or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, the application circuitry, and / or the memory / storage may be implemented together on a system on a chip (SOC) . The memory / storage 1240 may be used to load and store data and / or instructions, for example, for system. The memory / storage 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.
[0085] In various embodiments, the I / O interface 1280 may include one or more user interfaces designed to enable user interaction with the system and / or peripheral component interfaces designed to enable peripheral component interaction with the system. User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface. In various embodiments, the sensor 1270 may include one or more sensing devices to determine environmental conditions and / or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, the baseband circuitry and / or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.
[0086] In various embodiments, the display 1250 may include a display, such as a liquid crystal display and a touch screen display. In various embodiments, the communication system 1200 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR / VR glasses, etc. In various embodiments, system may have more or less components, and / or different architectures. Where appropriate, 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.
[0087] A person having ordinary skill in the art understands that each of the units, algorithm, and operations described and disclosed in the embodiments of the present disclosure are realized using electronic hardware or combinations of software for computers and electronic hardware. Whether the functions run in hardware or software depends on the condition of application and design requirement for a technical plan. A person having ordinary skill in the art can use different ways to realize the function for each specific application while such realizations should not go beyond the scope of the present disclosure. It is understood by a person having ordinary skill in the art that he / she can refer to the working processes of the system, device, and unit in the above-mentioned embodiment since the working processes of the above-mentioned system, device, and unit are basically the same. For easy description and simplicity, these working processes will not be detailed.
[0088] It is understood that the disclosed system, device, and method in the embodiments of the present disclosure can be realized with other ways. The above-mentioned embodiments are exemplary only. The division of the units is merely based on logical functions while other divisions exist in realization. It is possible that a plurality of units or components are combined or integrated in another system. It is also possible that some characteristics are omitted or skipped. On the other hand, the displayed or discussed mutual coupling, direct coupling, or communicative coupling operate through some ports, devices, or units whether indirectly or communicatively by ways of electrical, mechanical, or other kinds of forms.
[0089] The units as separating components for explanation are or are not physically separated. The units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments. Moreover, each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.
[0090] If the software function unit is realized 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 plan proposed by the present disclosure can be essentially or partially realized as the form of a software product. Or, one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product. The software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the operations disclosed by the embodiments of the present disclosure. The storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM) , a random access memory (RAM) , a floppy disk, or other kinds of media capable of storing program codes.
[0091] While the present disclosure has been described in connection with what is considered the most practical and preferred embodiments, it is understood that the present disclosure is not limited to the disclosed embodiments but is intended to cover various arrangements made without departing from the scope of the broadest interpretation of the appended claims.
Claims
1.A method of wireless communication performed by a user equipment (UE) , comprising:receiving a configuration of beam reference signal from a base station, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource; andreceiving a configuration of one or more beam reference signal resources from the base station.2.The method of claim 1, wherein different beam reference signals are configured to transmit different sequences.3.The method of claim 1, wherein the one or more beam reference signal resources comprises one or more channel state information reference signal (CSI-RS) resources, one or more beam measurement reference signals, and / or one or more beam signals.4.The method of claim 1, wherein the configuration of one or more beam reference signal resources comprises an allocation of time and frequency resource and / or one or more reference signal sequences contained in the beam reference signal resource.5.The method of claim 4, wherein the allocation of time and frequency resource comprises a starting symbol index and a number of symbols allocated to the beam reference signal resource.6.The method of claim 4, wherein the allocation of time and frequency resource comprises a starting frequency location and a length of frequency bandwidth allocation.7.The method of claim 1, wherein one or more reference signal sequences are mapped to one time-frequency resource allocated to a same beam reference signal resource.8.The method of claim 1, further comprising:measuring the one or more beam reference signal resources; andreporting a measurement of the one or more beam reference signal resources.9.The method of claim 8, wherein measuring the one or more beam reference signal resources comprises: measuring a layer 1 reference signal received power (L1-RSRP) or layer 1 signal to interference noise ratio (L1-SINR) from each reference signal sequence contained in each beam reference signal resource.10.The method of claim 8, wherein reporting a measurement of the one or more beam reference signal resources comprises one or more of the followings:reporting one L1-RSRP measurement or L1-SINR measurement;reporting one indicator used to indelicate a first beam reference signal resource and a first reference signal sequence of the first beam reference signal resource, where a corresponding L1-RSRP or L1-SINR is measured; and / orreporting N L1-RSRP measurements or N L1-SINR measurements, wherein each of which corresponds one reference signal sequence in the first beam reference signal and the UE is configured to report one indicator that indicates the first beam reference signal resource.11.A method of wireless communication performed by a base station, comprising:transmitting, to a user equipment (UE) , a configuration of beam reference signal, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource; andtransmitting, to the UE, a configuration of one or more beam reference signal resources.12.The method of claim 11, wherein different beam reference signals are configured to transmit different sequences.13.The method of claim 11, wherein the one or more beam reference signal resources comprises one or more channel state information reference signal (CSI-RS) resources, one or more beam measurement reference signals, and / or one or more beam signals.14.The method of claim 11, wherein the configuration of one or more beam reference signal resources comprises an allocation of time and frequency resource and / or one or more reference signal sequences contained in the beam reference signal resource.15.The method of claim 14, wherein the allocation of time and frequency resource comprises a starting symbol index and a number of symbols allocated to the beam reference signal resource.16.The method of claim 14, wherein the allocation of time and frequency resource comprises a starting frequency location and a length of frequency bandwidth allocation.17.The method of claim 11, wherein one or more reference signal sequences are mapped to one time-frequency resource allocated to a same beam reference signal resource.18.The method of claim 11, further comprising:requesting the UE to measure the one or more beam reference signal resources; andrequesting the UE to report a measurement of the one or more beam reference signal resources.19.The method of claim 18, wherein requesting the UE to measure the one or more beam reference signal resources comprises:requesting the UE to measure a layer 1 reference signal received power (L1-RSRP) or layer 1 signal to interference noise ratio (L1-SINR) from each reference signal sequence contained in each beam reference signal resource.20.The method of claim 18, wherein requesting the UE to report a measurement of the one or more beam reference signal resources comprises one or more of the followings:requesting the UE to report one L1-RSRP measurement or L1-SINR measurement;requesting the UE to report one indicator used to indelicate a first beam reference signal resource and a first reference signal sequence of the first beam reference signal resource, where a corresponding L1-RSRP or L1-SINR is measured; and / orrequesting the UE to report N L1-RSRP measurements or N L1-SINR measurements, wherein each of which corresponds one reference signal sequence in the first beam reference signal and the base station is configured to request the UE to report one indicator that indicates the first beam reference signal resource.21.A user equipment (UE) , comprising:a receiver configured to receive a configuration of beam reference signal and a configuration of one or more beam reference signal resources from a base station, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource.22.A base station, comprising:a transmitter configured to transmit, to a user equipment (UE) , a configuration of beam reference signal and a configuration of one or more beam reference signal resources, wherein each beam reference signal corresponds to one or more transmit beams of the base station, and multiple beam reference signals corresponding to different transmit beams of the base station are configured on a same time and frequency resource.23.A user equipment (UE) , comprising:a memory;a transceiver; anda processor coupled to the memory and the transceiver;wherein the UE is configured to perform the method of any one of claims 1 to 10.24.A base station, comprising:a memory;a transceiver; anda processor coupled to the memory and the transceiver;wherein the base station is configured to perform the method of any one of claims 11 to 20.