A method and device for resource allocation

Abstract

The present application provides a method for resource configuration, including: receiving configuration information sent by a network device, the configuration information including at least a first SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching; using a first antenna group to send each SRS resource in the first SRS resource set, and using a second antenna group to send each SRS resource in the second SRS resource set; facilitating a terminal to simultaneously implement the functions of beam selection and antenna switching, so that the downlink channel measured by the base station is no longer limited to the range of a simulated beam direction, which is more conducive to improving the downlink transmission rate.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a method and device for resource configuration. Background Art

[0002] Sounding reference signal (SRS) is the uplink sounding signal of the terminal, which can be used by the base station to measure the uplink wireless channel quality; it is sent by the terminal and received and detected by the base station. The SRS transmission method, including time-frequency resources, transmission beam, transmission power, etc., are all configured by the base station for the terminal. In the 3GPP standard New Radio (NR) Release 15 (R15 for short) protocol, the base station can configure one or more SRS resource sets (SRS resource set) for the terminal, and each SRS resource set includes one or more SRS resources (SRS resource).

[0003] The base station can obtain the information of the terminal's uplink channel by measuring the SRS sent by the terminal. Combined with the reciprocity of the uplink and downlink channels, the information of the downlink channel corresponding to the terminal's uplink channel can be determined. Due to the inconsistent transceiver capabilities of some terminals, for example, considering factors such as power consumption, the number of transmit antennas (or the number of transmit antenna ports) that the terminal can use simultaneously may be less than the number of receive antennas (or the number of receive antenna ports). Therefore, the terminal can send SRS multiple times, using part of the antennas for each transmission, so that the base station can determine the information of the uplink channel corresponding to part of the terminal's antennas each time. After several measurements, the base station can finally determine the downlink channel information of all the terminal's antennas.

[0004] When the terminal includes multiple antenna groups, the analog beam used when sending SRS is the same, that is, it is sent toward a specific azimuth; in this case, the detection range is limited, and the appropriate downlink channel cannot be determined, which may cause the performance of downlink transmission to be impaired. Summary of the invention

[0005] The present application provides a method and device for resource configuration, which is convenient for improving the transmission efficiency of downlink data or signals.

[0006] In one aspect, a method for resource configuration is disclosed, comprising:

[0007] Receive configuration information sent by a network device, where the configuration information includes at least a first SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching; use the first antenna group to send each SRS resource in the first SRS resource set, and use the second antenna group to send each SRS resource in the second SRS resource set;

[0008] The above method may be executed by a terminal, or by a chip or functional unit of the terminal.

[0009] The above method is described using the configuration information including 2 SRS resource sets as an example, but is not limited to 2, and can be multiple. The number of SRS resource sets can usually be determined based on the capabilities of the terminal, which include 1T2R, 1T4R, 2T4T, 4T8R, etc.; T represents transmission and R represents reception.

[0010] An antenna group may correspond to an antenna panel, that is, each antenna in an antenna group is located on an antenna panel, and different antenna groups correspond to different antenna panels; in another example, multiple antennas of an antenna panel may also be divided into multiple antenna groups, for example: 4 antennas of an antenna panel are divided into 2 antenna groups, each group includes 2 antennas.

[0011] The standard generally does not use "antenna" but uses "antenna port", which is a logical concept. For the convenience of description, it is usually referred to as "antenna". In this application, antenna and antenna port can be interchangeable.

[0012] In the above solution, each SRS resource set may include one or more SRS resources, and each antenna group may include one or more antennas (or antenna ports);

[0013] In combination with the above solution, each SRS resource in the same SRS resource set is sent through a different beam.

[0014] In another solution, each SRS resource in the same antenna group may also be sent through the same beam, which can be used for beam management of the network device to determine a suitable downlink beam for the network device.

[0015] In combination with the above scheme, the combination of SRS resources in the two SRS resource sets has a preset binding relationship, for example: each SRS resource in the first SRS resource set is respectively associated with each SRS resource in the second SRS resource set; the binding relationship can be pre-set or notified to the terminal by the network device.

[0016] In combination with the above solution, SRS resources with the same identification order in the first SRS resource set and the second SRS resource set are sent using the same beam.

[0017] In another example, SRS resources with the same identification order in the first SRS resource set and the second SRS resource set may also be sent using different beams.

[0018] In combination with the above solution, at least one of the following parameters of the first SRS resource set and the second SRS resource set is the same: a path loss estimation reference signal, a time domain behavior, and a transmission power related parameter.

[0019] In combination with the above solution, the transmission time interval of the first SRS resource set and the second SRS resource set is greater than or equal to the antenna group activation and / or switching time of the terminal.

[0020] In combination with the above solution, the transmission time interval of the first SRS resource set and the second SRS resource set is less than or equal to a set time threshold, and the time threshold is related to the channel coherence time.

[0021] In combination with the above scheme, further, the network device measures each SRS resource in the first SRS resource set sent by the terminal using the first antenna group, determines the SRS resources that meet the quality requirements, for example: the SRS resources with the best signal quality, and uses the beam that sends the SRS resource as the appropriate transmitting beam for the terminal, so that the receiving beam corresponding to the transmitting beam can be determined as the appropriate downlink beam for the first antenna group of the terminal.

[0022] Similarly, the network device measures each SRS resource in the second SRS resource set sent by the terminal using the second antenna group, and can determine a suitable downlink beam of the second antenna group of the terminal according to the measurement result.

[0023] Furthermore, the network device may notify the terminal of the appropriate downlink beam of the first antenna group and the appropriate downlink beam of the second antenna group.

[0024] The suitable downlink beam can be used for downlink transmission of the terminal, such as receiving downlink signals or data such as PDCCH (physical downlink control channel), PDSCH (physical downlink shared channel), and CSI-RS (channel state information-reference signal).

[0025] Furthermore, the appropriate transmit beam of the terminal can be used for uplink transmission of the terminal, such as sending uplink data or signals such as PUCCH (physical uplink control channel), PUSCH (physical uplink shared channel), SRS, etc.

[0026] In combination with the above scheme, the method also includes: receiving indication information sent by the network device, the indication information including information of the beams used by each antenna group for downlink transmission, for example: including information of the beams used by the first antenna group for downlink transmission and information of the beams used by the second antenna group for downlink transmission; the indication information can be sent through RRC (radio resource control), MAC CE (Media Access Control control element), DCI (downlink control information), etc., and the beam information can be represented by TCI-state (Transmission Configuration Indication state).

[0027] In combination with the above solution, the beam used by the terminal for uplink transmission or downlink transmission is indicated by an SRS identifier.

[0028] For example, the method further includes: receiving a TCI state sent by a network device, wherein the TCI state includes an identifier of an SRS resource determined from each SRS resource set; or includes an identifier of an SRS resource determined from one of the SRS resource sets and an offset value of the determined SRS resource, in which case the identifier of an SRS resource determined in another SRS resource set can be obtained according to the offset value of the SRS resource; or only includes an identifier of an SRS resource determined in one of the SRS resource sets, in which case the terminal can determine the identifier of an SRS resource determined in another SRS resource set according to a preset binding relationship. Since the SRS resource corresponds to a beam, the terminal can determine the corresponding beam according to the identifier of the SRS resource.

[0029] For example: the SRS resource determined in the SRS resource set is an SRS resource that meets the signal quality requirements and is determined by the base station through SRS measurement, and may be an SRS resource with the best signal quality; then the TCI state includes the identifier of the SRS resource with the best signal quality in the first SRS resource set, and the identifier of the SRS resource with the best signal quality in the second SRS resource set.

[0030] The TCI state may be carried in the qcl-info of the CSI-RS configuration information, or carried in the DCI.

[0031] When the TCI state is carried in qcl-info, the terminal can receive and measure the CSI-RS according to the TCI state in qcl-info, and report the measurement result to the network device.

[0032] When the TCI state is carried in the DCI, the terminal may receive the PDSCH or send the PUSCH according to the TCI state of the DCI.

[0033] In combination with the above solution, the method further includes: reporting capability information to the network device, wherein the capability information includes at least one of the following:

[0034] The terminal supports SRS sets configured for a maximum of N purposes, where N is greater than or equal to 2;

[0035] The terminal supports SRS set configured as beam management + antenna switching;

[0036] Antenna switching capabilities supported by the terminal, such as 2-transmit 4-receive (2T4R), 1T2R, 1T4R, or 4T8R.

[0037] The above scheme introduces a resource configuration method performed by a terminal. Corresponding to the above resource configuration method, on the other hand, the present application also discloses a resource measurement method performed by a network device, including:

[0038] Configuration information is sent to the terminal, the configuration information includes at least a first sounding reference signal SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching; measuring each SRS resource in a first SRS resource set sent by the terminal using a first antenna group, and measuring each SRS resource in a second SRS resource set sent by the terminal using a second antenna group; determining the SRS resources in the first SRS resource set that meet the quality requirements and the SRS resources in the second SRS resource set that meet the quality requirements based on the measurement results.

[0039] The above method may be executed by a network device, or by a chip or a functional unit of the network device.

[0040] In combination with the above scheme, it further includes:

[0041] At least one of the beams corresponding to the SRS resources meeting the quality requirements in the first SRS resource set and the beams corresponding to the SRS resources meeting the quality requirements in the second SRS resource set is notified to the terminal.

[0042] In combination with the above solution, the beam corresponding to the SRS resource that meets the quality requirements is the beam corresponding to the SRS with the best signal quality.

[0043] In combination with the above solution, the combination of SRS resources in the two SRS resource sets has a preset binding relationship.

[0044] In combination with the above scheme, the information of the beam corresponding to the SRS resource that meets the quality requirements is carried in the qcl-info of the channel state information reference signal CSI-RS configuration information, or is carried in the downlink control information DCI.

[0045] In the above method, the beam corresponding to the SRS resource can be indicated by the identifier of the SRS resource.

[0046] It can be understood that some technical features in the resource configuration method of the first aspect above can also be applied to the resource measurement method performed by the network device. For details, please refer to the relevant description in the resource configuration method and no further details will be given.

[0047] In the above scheme, since the SRS resource set configured by the network device for the terminal has two uses or functions, different antenna groups of the terminal can respectively detect SRS in various directions and complete the switching of antenna groups at the same time; it is convenient to determine the appropriate downlink beam for each antenna group and improve the efficiency of downlink transmission.

[0048] The following introduces devices related to the above-mentioned resource configuration method and resource measurement method.

[0049] On the one hand, based on the above resource configuration method, a communication device is provided, which may be a terminal, or a chip or functional unit in a terminal. The device has the functions of implementing the above resource configuration method and various possible implementation modes of the terminal. The function may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0050] In one possible design, the device includes: a transceiver module, which may include a receiving module and a sending module, which are respectively used to perform the sending and receiving operations in the above-mentioned resource configuration method; for example: the receiving module is used to receive configuration information sent by a network device, and the configuration information includes at least a first SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching; the sending module is used to use the first antenna group to send each SRS resource in the first SRS resource set, and use the second antenna group to send each SRS resource in the second SRS resource set.

[0051] The device may further include a processing module for performing other operations in addition to sending and receiving. The transceiver module may be a transceiver, including at least one of a receiver and a transmitter.

[0052] For other operations performed by the modules or units of the above-mentioned apparatus, reference may be made to the description of the corresponding method.

[0053] The transceiver module may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the device further includes a storage module, which may be, for example, a memory. When the storage module is included, the storage module is used to store instructions. The processing module is connected to the storage module, and the processing module may execute instructions stored in the storage module or instructions derived from other sources, so that the device executes the above-mentioned resource configuration method and various possible implementations. In the present design, the device may be a terminal.

[0054] In another possible design, when the device is a chip, the chip includes: a transceiver module, which may include a receiving module and a sending module. The device also includes a processing module. The transceiver module may be, for example, an input / output interface, a pin or a circuit on the chip. The processing module may be, for example, a processor. The processing module may execute instructions so that the chip in the terminal executes the above-mentioned resource configuration method and any possible implementation. Optionally, the processing module may execute instructions in a storage module, which may be a storage module in the chip, such as a register, a cache, etc. The storage module may also be located in the communication device but outside the chip, such as a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.

[0055] Among them, the processor mentioned in any of the above places can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs of the above-mentioned communication methods.

[0056] On the other hand, based on the above resource measurement method, a communication device is provided, which may be a network device, or a chip or functional unit in the network device. The device has the functions of implementing the above resource configuration and the network device in various possible implementations. The function may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0057] In one possible design, the device includes: a transceiver module, which may include a receiving module and a sending module, respectively performing sending and receiving operations in the resource measurement method. The device also includes a processing module for performing other operations except sending and receiving. The transceiver module may be a transceiver, including at least one of a receiver and a transmitter, and the transceiver module may also include a radio frequency circuit or an antenna. The processing module may be a processor. For example:

[0058] The transceiver module is used to send configuration information to the terminal, where the configuration information includes at least a first sounding reference signal SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching;

[0059] The processing module is used to measure each SRS resource in a first SRS resource set sent by the terminal using a first antenna group, and to measure each SRS resource in a second SRS resource set sent by the terminal using a second antenna group; and to determine, based on the measurement results, the SRS resources in the first SRS resource set that meet the quality requirements and the SRS resources in the second SRS resource set that meet the quality requirements.

[0060] For other operations performed by the modules or units of the above-mentioned apparatus, reference may be made to the description of the corresponding method.

[0061] Optionally, the device further includes a storage module, which may be, for example, a memory. When the storage module is included, the storage module is used to store instructions. The processing module is connected to the storage module, and the processing module may execute instructions stored in the storage module or instructions derived from other sources, so that the device performs the above-mentioned resource configuration method, or any implementation thereof.

[0062] In another possible design, when the device is a chip, the chip includes: a transceiver module, which may include a receiving module and a sending module. The device also includes a processing module. The transceiver module may be, for example, an input / output interface, a pin or a circuit on the chip. The processing module may be, for example, a processor. The processing module may execute instructions so that the chip in the network device executes the above-mentioned resource configuration method and any possible implementation method.

[0063] Optionally, the processing module may execute instructions in a storage module, and the storage module may be a storage module within a chip, such as a register, a cache, etc. The storage module may also be located within the communication device but outside the chip, such as a ROM or other types of static storage devices that can store static information and instructions, a RAM, etc.

[0064] The processor mentioned in any of the above may be a CPU, a microprocessor, an application specific integrated circuit ASIC, or one or more integrated circuits for controlling the execution of programs of the above-mentioned communication methods.

[0065] On the other hand, a computer storage medium is provided, in which a program code is stored. The program code is used to instruct the method of executing the above-mentioned various aspects and any possible implementation thereof.

[0066] On the other hand, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the methods in the above aspects, or any possible implementation thereof.

[0067] On the other hand, a communication system is provided, which includes the above-mentioned terminal and the above-mentioned network device.

[0068] Based on the above technical solution, the usage of the SRS resource set is configured as Antenna switch+BeamManagement. The terminal can switch the antenna panel between different SRS resource sets, and the SRS resources in an SRS resource set are used for the transmission beam selection of an antenna panel. This facilitates the terminal to simultaneously implement the functions of beam selection and antenna switching, so that the downlink channel measured by the base station is no longer limited to the range of a simulated beam direction, which is more conducive to improving the downlink transmission rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 is a schematic diagram of a communication system of the present application;

[0070] Figure 2 is a schematic diagram of a MAC CE including a PDCCH CORESET TCI State;

[0071] Figure 3 This is a schematic diagram of the terminal SRS sending method of 2T4R;

[0072] Figure 4 This is a schematic diagram of terminal SRS resource configuration of 2T4R in one embodiment of the present application;

[0073] Figure 5 This is a flow chart of a method for configuring terminal SRS resources according to a specific embodiment of the present application;

[0074] Figure 6 is a schematic diagram of a terminal including three antenna panels according to another specific embodiment of the present application;

[0075] Figure 7 is a schematic diagram of a terminal switching antenna panel including three antenna panels according to another embodiment of the present application;

[0076] Figure 8 is a schematic block diagram of a communication device according to an embodiment of the present application;

[0077] Fig. 9 is a schematic structural diagram of a communication device according to another embodiment of the present application;

[0078] Fig.10 is a schematic block diagram of a communication device according to another embodiment of the present application;

[0079] Fig.11 is a schematic structural diagram of a communication device according to another embodiment of the present application;

[0080] Fig.12 is a schematic diagram of a communication device according to another specific embodiment of the present application;

[0081] Fig.13 is a schematic diagram of a communication device according to another specific embodiment of the present application;

[0082] Fig.14 is a schematic diagram of a communication device according to another specific embodiment of the present application;

[0083] Fig.15 It is a schematic diagram of a communication device according to another specific embodiment of the present application. DETAILED DESCRIPTION

[0084] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0085] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5G) system or new radio (NR), etc.

[0086] The terminal in the embodiments of the present application may refer to a user device, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal device, a wireless communication device, a user agent or a user device. The terminal may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved public land mobile communication network (PLMN), etc., and the embodiments of the present application are not limited to this.

[0087] The network device in the embodiment of the present application may be a device for communicating with a terminal. The network device may be a base station (base transceiver station, BTS) in a global system for mobile communications (GSM) system or code division multiple access (CDMA), or a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc., and the embodiment of the present application is not limited.

[0088] In some deployments, the gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by the DU+AAU. It can be understood that the network device can be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be classified as a network device in an access network (radio access network, RAN), or the CU may be classified as a network device in a core network (core network, CN), which is not limited in the present application.

[0089] In an embodiment of the present application, a terminal or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application, as long as it can communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application can be a terminal or a network device, or a functional module in a terminal or a network device that can call a program and execute the program.

[0090] In addition, various aspects or features of the present application can be implemented as methods, devices or products using standard programming and / or engineering techniques. The term "product" used in this application covers computer programs that can be accessed from any computer-readable device, carrier or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0091] Figure 1 It is a schematic diagram of a communication system of the present application. Figure 1 The communication system in the embodiment may include at least one terminal (e.g., terminal 10, terminal 20, terminal 30, terminal 40, terminal 50, and terminal 60) and a network device 70. The network device 70 is used to provide communication services for the terminal and access the core network. The terminal can access the network by searching for synchronization signals, broadcast signals, etc. sent by the network device 70, thereby communicating with the network. Figure 1 The terminals 10, 20, 30, 40 and 60 in the network device 70 can perform uplink and downlink transmission with the network device 70. For example, the network device 70 can send downlink signals to the terminals 10, 20, 30, 40 and 60, and can also receive uplink signals sent by the terminals 10, 20, 30, 40 and 60.

[0092] In addition, the terminal 40 , the terminal 50 and the terminal 60 may also be regarded as a communication system. The terminal 60 may send downlink signals to the terminal 40 and the terminal 50 , and may also receive uplink signals sent by the terminal 40 and the terminal 50 .

[0093] It should be noted that the embodiments of the present application can be applied to a communication system including one or more network devices, and can also be applied to a communication system including one or more terminals, and the present application does not limit this.

[0094] It should be understood that the network device included in the communication system may be one or more. One network device may send data or control signaling to one or more terminals. Multiple network devices may also send data or control signaling to one or more terminals at the same time.

[0095] The following is a detailed introduction to the terms involved in this application:

[0096] 1. Beam:

[0097] The embodiment of beam in NR protocol can be spatial domain filter, or spatial filter or spatial parameter. The beam used to send signals can be called transmission beam (Tx beam), can be called spatial domain transmission filter or spatial transmission parameter; the beam used to receive signals can be called reception beam (Rx beam), can be called spatial domain receive filter or spatial receive parameter.

[0098] The transmit beam may refer to the distribution of signal strength in different directions of space after the signal is transmitted by the antenna, and the receive beam may refer to the distribution of signal strength in different directions of space of the wireless signal received from the antenna.

[0099] In addition, the beam may be a wide beam, a narrow beam, or other types of beams. The technology for forming the beam may be a beamforming technology or other technologies. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital / analog beamforming technology.

[0100] Beams generally correspond to resources. For example, when performing beam measurement, the network device sends different resources through different beams. The terminal feeds back the measured resource quality, and the network device knows the quality of the corresponding beam. During data transmission, beam information is also indicated through its corresponding resources. For example, the network device uses the TCI (Transmission Configuration Indication) field in the DCI (downlink control information) to indicate to the terminal the information of the beam receiving the PDSCH (physical downlink shared channel).

[0101] Optionally, multiple beams with the same or similar communication characteristics are regarded as one beam. One beam can be sent through one or more antenna ports for transmitting data channels, control channels, and sounding signals. One or more antenna ports forming a beam can also be regarded as an antenna port set.

[0102] In beam measurement, each beam of the network device corresponds to a resource, so the beam corresponding to the resource can be indicated by the index or identifier of the resource.

[0103] 2. Resources:

[0104] In beam measurement, the beam corresponding to the resource can be uniquely identified by the index of the resource. The resource can be an uplink signal resource or a downlink signal resource. The uplink signal includes but is not limited to a sounding reference signal (SRS) and a demodulation reference signal (DMRS). The downlink signal includes but is not limited to a channel state information reference signal (CSI-RS), a cell specific reference signal (CS-RS), a UE specific reference signal (US-RS), a demodulation reference signal (DMRS), and a synchronization system / physical broadcast channel block (SS / PBCH block). Among them, the SS / PBCH block can be referred to as a synchronization signal block (SSB).

[0105] Resources are configured through radio resource control (RRC) signaling. In terms of configuration structure, a resource is a data structure, including relevant parameters of its corresponding uplink / downlink signal, such as the type of uplink / downlink signal, the resource element carrying the uplink / downlink signal, the transmission time and period of the uplink / downlink signal, the number of ports used to send the uplink / downlink signal, etc. Each uplink / downlink signal resource has a unique index to identify the resource of the downlink signal. It can be understood that the index of the resource can also be called the identification of the resource, and the embodiments of the present application do not impose any restrictions on this.

[0106] The association relationship in the embodiment of the present application may also be specified by a standard, or agreed upon in advance by the network device and the terminal, or indicated by the network device to the terminal.

[0107] The synchronization signal block may also be referred to as a synchronization signal / physical broadcast channel (PBCH, SS / PBCH block), or simply referred to as SSB, and may include at least one of PBCH, a primary synchronization signal (PSS), and a secondary synchronization signal (SSS).

[0108] 3. TCI state:

[0109] As an example, the TCI state mainly includes the type of QCL (quasi-co-location) (such as two different QCL types can be configured) and the reference signal of each QCL type, which specifically includes the carrier component (CC) identification (ID) or BWP ID where the reference signal is located, and the number of each reference signal resource (ssb-index, or CSI-RS resource index). The configuration method of the TCI state in the existing protocol is as follows:

[0110]

[0111] Among them, the classification of QCL types can be shown as follows:

[0112] QCL typeA: delay, Doppler shift, delay spread, Doppler spread;

[0113] QCL typeB: Doppler shift, Doppler expansion;

[0114] QCL typeC: delay, Doppler shift;

[0115] QCL typeD: spatial reception parameters, i.e., receiving beam.

[0116] 4. Quasi-co-location (QCL):

[0117] The co-location relationship is used to indicate that multiple resources have one or more identical or similar communication characteristics. For multiple resources with a co-location relationship, the same or similar communication configuration can be used. For example, if two antenna ports have a co-location relationship, the large-scale characteristics of the channel for transmitting a symbol on one port can be inferred from the large-scale characteristics of the channel for transmitting a symbol on the other port. The large-scale characteristics may include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receiving parameters, terminal receiving beam number, transmit / receive channel correlation, receiving arrival angle, spatial correlation of receiver antenna, main arrival angle (Angel-of-Arrival, AoA), average arrival angle, extension of AoA, etc. The parameters of quasi-co-location include: at least one of Doppler spread, Doppler shift, average delay, delay spread and spatial reception parameters. QCL relationships can be divided into four categories: 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread}; 'QCL-TypeB': {Doppler shift, Doppler spread}; 'QCL-TypeC': {Doppler shift, average delay}; - 'QCL-TypeD': {spatial reception parameters}.

[0118] 5. Downlink beam training and uplink beam training

[0119] Downlink beam training is mainly achieved through the measurement and feedback of downlink signals (SSB and / or CSI-RS). It can be considered that the base station uses different transmission beams to send SSBs and / or CSI-RSs with different numbers (the number of the transmission beam and the SSB / CSI-RS is not necessarily a one-to-one correspondence, but can also be a one-to-many, many-to-one or many-to-many relationship). The base station configures the terminal to perform L1-RSRP (reference signal receiving power) measurement or L1-SINR (signal to interference plus noise ratio) measurement on one or more specific SSBs or CSI-RSs, and requires the terminal to select N suitable SSBs or CSI-RSs by itself and report the corresponding number identification and quality (RSRP / SINR). If the downlink signal is periodic or semi-continuous, the terminal has multiple opportunities to measure and can try different receiving beams. If the downlink signal is non-periodic (one-time), the terminal can measure according to the receiving beam indicated by the base station, or select the receiving beam by itself.

[0120] Uplink beam training is mainly achieved by configuring the terminal to send uplink measurement signals (such as SRS) through the base station. It can be considered that the terminal uses different transmission beams to send SRSs with different numbers (similarly, there can be a many-to-many relationship between the transmission beam and the SRS number). The base station selects a suitable transmission beam for the terminal by measuring the quality of different SRSs. The base station can try different receiving beams when measuring. If the uplink signal is periodic or semi-continuous, the base station has multiple opportunities to try different receiving beams when measuring. If the uplink signal is non-periodic (one-time), the base station can also select the receiving beam by itself.

[0121] 6. Downlink control channel beam

[0122] Taking the downlink physical control channel PDCCH (physical downlink control channel) as an example, the network uses a two-level signaling structure of RRC signaling + MAC-CE (Media Access Control control element) signaling to perform beam indication of PDCCH. It should be noted that the beam indication of PDCCH in R15 is achieved by beam indication of CORESET (control resource set). The network uses RRC signaling to configure the TCI state of the CORESET of the BWP (bandwidth part) in a CC (Carrier component) for the terminal, and the network uses MAC CE to indicate a TCI state for the CORESET of the BWP of a CC of the terminal for the transmission of the target CORESET. The CORESET number is unique within a CC.

[0123] Figure 2 The structure of the MAC CE containing the PDCCH CORESET TCI State in R15 is shown in FIG. 1. As can be seen, the signaling carries multiple fields, including the CC ID field (serving cell ID) and the CORESET ID field.

[0124] The configuration information in this application can be configured by the network device and sent to the terminal. The configuration information can be carried on the physical broadcast channel (PBCH), the remaining minimum system information (RMSI), the system information block (SIB) 1, SIB2, SIB3, the media access control element (MAC-CE), the downlink control information (DCI), the radio resource control (RRC) and any one of the system information.

[0125] It should be noted that with the continuous development of technology, the terms of the embodiments of the present application may change, but they are all within the scope of protection of the present application.

[0126] In 3GPP R15 / R16, different SRS resource sets have different uses or functions. R15 defines four uses of SRS resource sets:

[0127] Beam Management, Codebook-based uplink data transmission (codebook for short), non-Codebook-based uplink data transmission (nonCodebook for short) and antenna switching. The base station can configure the usage of each SRS resource set and notify the terminal of the usage of the SRS resource set through RRC.

[0128] The above four uses can be simply marked with BM, CB, NCB and AS. In addition to the above four functions, the SRS resource set in R16 also supports mobility and positioning.

[0129] Specifically, the configuration of the SRS resource set is as follows:

[0130]

[0131] Among them, each SRS resource is configured as follows:

[0132]

[0133]

[0134] Among them, the SRS transmission beam indication configuration is as follows:

[0135]

[0136] In the 3GPP R15 / R16 protocol, there are different restrictions on SRS resource sets for different purposes. For example, the following are the restrictions on SRS in R15:

[0137] BeamManagement: SRS resources in one SRS resource set cannot be sent at the same time, but SRS resources in different SRS resource sets can be sent at the same time. A maximum of 8 SRS resource sets can be configured. Each SRS resource set includes one or more SRS resources, and a maximum of 16 SRS resources.

[0138] Antenna Switching: SRS resources are used for downlink channel acquisition. Taking 2T4R (2 transmit 4 receive) as an example, usually one SRS resource set is configured (one periodic SRS and one non-periodic SRS resource set can be configured each). One SRS resource set has two SRS resources, and each SRS resource is a 2-port resource.

[0139] Codebook: configures one SRS resource set, which includes one or two SRS resources.

[0140] NonCodebook: configures one SRS resource set, which includes one or more SRS resources, up to 4 SRS resources, and each SRS resource is a 1-port resource.

[0141] In 3GPP R15 / R16, the base station can configure SRS resources for the terminal and measure the SRS sent by the terminal to determine the information of the downlink channel. Since the terminals have different capabilities, the implementation of this function is slightly different according to the terminal capabilities. For example: one case is that the terminal supports the antenna switching function, and due to power consumption and other reasons, the number of available uplink transmit antennas is less than the number of available downlink receive antennas. For example, the terminal reports to the base station that it supports '2T4R', i.e. 'two transmit and four receive'. The base station determines the downlink channel by measuring the SRS periodically sent by the terminal. Therefore, the base station can configure a periodic SRS resource set for the terminal, which includes 2 different SRS resources, each resource is associated with 2 different antenna ports, i.e., each SRS resource is a 2-port resource. The terminal can use Figure 3 The method shown is used to send the SRS, so that the base station can obtain downlink channel information through SRS measurement.

[0142] refer to Figure 3 The terminal includes two antenna panels, each antenna panel includes two antenna ports. The terminal uses the two antenna ports of the first antenna panel to send SRS on the first SRS resource, and uses the two antenna ports of the second antenna panel to send SRS on the second SRS resource. The base station measures the quality of the signal received on these two SRS resources, and can determine the channel when the terminal uses four antenna ports for reception, that is, the quality of the downlink channel corresponding to the four receiving antenna ports of the terminal.

[0143] In the above example, the terminal's antennas are abstracted into a linear arrangement. The gray squares represent the transmitting antennas used by the terminal. It can be seen that this terminal has the '2T4R' capability, that is, the terminal has 4 antennas that can be used for receiving at the same time, but can use two of them at the same time when sending. Figure 3 A schematic diagram of time-frequency resources is also provided, which mainly illustrates the time position of the SRS sent by the terminal, such as Figure 3 The figure shows a time slot with 14 OFDM (orthogonal frequency division multiplexing) symbols defined by the NR standard. The terminal sends the first SRS resource using the two left antennas at the 10th symbol of the slot (or the fifth to last symbol of the slot), and sends the second SRS resource using the two right antennas at the 13th symbol of the slot (or the second to last symbol of the slot). The time interval between the two transmissions is the protection interval for the terminal to switch antennas.

[0144] Sending SRS resources in the present application may also be understood as sending SRS on the configured SRS resources.

[0145] In the above scheme, since one SRS resource set can only be configured for one purpose, that is, the base station indicates one usage (usage) for one SRS resource set through high-level signaling, that is, the antenna switching AS. In the above scheme, but in the existing protocol, the transmission beam configuration of each SRS resource in the SRS resource set used for antenna switching must be the same, that is, the determination of the downlink channel in the above scheme is actually performed on a given analog beam after the analog beam selection is completed. The terminal switches the transmitting antenna and sends multiple SRS resources in the SRS resource set respectively, and the analog beam used when sending these SRS resources is the same, that is, it is sent towards a specific azimuth. In this way of determining the downlink channel, the detection range is limited, and it is impossible to detect the channel range in multiple directions. The final determination of the downlink channel may cause the performance of the downlink transmission to be impaired.

[0146] In the resource configuration method proposed in this embodiment, the SRS resource set is configured for multiple purposes, and the base station can configure one (or more) SRS resource sets for multiple purposes.

[0147] Embodiment 1: The usage of the SRS resource set is configured as a composite purpose, such as having beam management + antenna switch functions. If the terminal has multiple antenna groups, the terminal can switch antennas between different configured SRS resource sets, specifically switching antenna groups; for the same antenna group, beam selection is performed between different SRS resources in the same SRS resource set, so that each group of antennas sending SRS can find the most suitable beam direction, obtain more accurate channel information, and support higher-speed downlink transmission.

[0148] refer to Figure 5 , the resource configuration method includes:

[0149] 100: Terminal capability reporting.

[0150] Assume that the terminal capability in this embodiment is 2T4R, and Figure 3 The terminal in is similar to Figure 4 The terminal includes two antenna panels, each antenna panel includes two antennas (or antenna ports), so one antenna panel can be regarded as an antenna group, and one antenna group includes two antennas; of course, two antenna groups can also be located on one antenna panel, which is not limited in this embodiment.

[0151] Usually, one antenna is associated with one port, or may be associated with multiple ports. The antenna panel may be regarded as an antenna group, and the antenna group may also be referred to as an antenna port group.

[0152] The terminal may report one or more of the following capabilities to the base station:

[0153] The terminal supports the capability of antenna switch, for example, '2T4R' in this embodiment. The number of transmitting and / or receiving antenna panels of the terminal, for example, the terminal has two transmitting and receiving antenna panels in this embodiment.

[0154] Optionally, the antenna switch capability supported by the terminal may further include two '2T2R', that is, including two antenna panels, each antenna panel including two antennas (or antenna ports), and both of the two antennas can be used for uplink transmission and downlink reception.

[0155] The number of beams transmitted and / or received by the terminal, for example, in this embodiment, it is assumed that the number of beams supported by each transmitting antenna panel of the terminal is 4.

[0156] The terminal sends the antenna panel switching time.

[0157] The terminal sends the antenna panel activation time.

[0158] The following are capabilities related to SRS configuration, which may include one or more of the following capabilities:

[0159] The above antenna panel can also be replaced by an antenna group.

[0160] Whether the terminal supports SRS sets being configured for more than one purpose;

[0161] The terminal supports SRS sets configured for a maximum of N purposes, where N is greater than or equal to 2;

[0162] Whether the terminal supports the SRS set being configured for BM+AS purpose;

[0163] The terminal supports the SRS set being configured for the purposes of which, for example, it can be any two or more of BM, CB, NCB and AS, or any two or more of BM, CB, NCB, AS, Mobility and Positioning. In this embodiment, the terminal supports the SRS set being configured for BM+AS purposes as an example.

[0164] 101: The base station sends configuration information to the terminal, which may be sent via RRC.

[0165] The configuration information concerned in this embodiment is SRS related configuration. Generally, the base station should determine appropriate configuration parameters based on the capability information reported by the terminal and the actual scheduling requirements. The configuration of the base station for the terminal should not exceed the capability of the terminal. The configuration information may include the following contents:

[0166] For example, an SRS resource set is configured for the terminal according to the capability information fed back by the terminal in 100. For example, if the terminal capability is 2T4R, since 4 / 2=2, the base station can configure two SRS resource sets for the terminal, each SRS resource set includes multiple SRS resources, such as 4 SRS resources, and the number of resources can be determined according to the number of beams; since the terminal supports 2T, each SRS resource is a 2-port resource and can be sent through 2 antenna ports.

[0167] If the terminal capability is 4T8R, two SRS resource sets can be configured, or four SRS resource sets can be configured, and each SRS resource is a 4-port resource.

[0168] The usage of these two SRS resource sets is configured as 'beam management BM+antenna switching AS'. The base station can send explicit signaling for configuration.

[0169] Among them, the terminal can perform antenna switching between different SRS resource sets according to the configuration information, and each SRS resource in an SRS resource set is used for beam management. For example, different SRS resource sets are sent through different antenna panels of the terminal, and each SRS resource in an SRS resource set is used for beam management of an antenna panel, that is, each SRS resource in an SRS resource set is sent through different beams of an antenna panel. Optionally, this setting can be predefined by the protocol. That is to say, if the base station indicates to the terminal that the usage of multiple SRS resource sets is BM+AS, then the terminal should send the SRS resources according to the above method.

[0170] Further, the transmission time interval T of the two SRS resource sets can be configured; optionally, T is greater than or equal to the activation and / or switching time of the transmitting antenna panel in the terminal capability report, which is to allow the terminal to switch the transmitting antenna panel or reactivate the transmitting antenna panel to leave a guard period. Optionally, T is less than or equal to a set time threshold, and the time threshold is related to the channel coherence time. The so-called coherence time refers to the period of time during which the channel characteristics do not change or change slowly. The coherence time is usually related to the relative position, movement speed and direction of the base station and the terminal (or the maximum Doppler shift). This is to ensure that the base station can obtain a more accurate 4R channel within the time when the channel has not changed.

[0171] The time interval T mentioned here may be the difference between the start time of the first SRS resource in the two SRS resource sets, or may be the difference between the end time of the last SRS resource in the first SRS resource set and the start time of the first SRS in the second SRS resource set.

[0172] Optionally, a transmission time interval t between SRS resources in each SRS resource set may also be configured. If t is configured, it is mainly used to reserve a protection interval time for the terminal to switch between different transmission beams of the same transmission panel.

[0173] Furthermore, the path loss estimation reference signals (pathlossreference signal) of the two SRS resource sets can be configured to be the same. Optionally, other transmit power-related parameters of the two SRS resource sets can also be configured to be the same, such as the reference power P0 and the path loss compensation coefficient alpha. This is to ensure that when sending the SRS resources of the two sets, the terminal can use the same transmit power, so that when the base station performs beam selection by measuring the SRS, it is not affected by the transmit power deviation, but only evaluates the beam quality. In contrast, in the prior art, only one path loss estimation reference signal is configured for each SRS resource set, that is, the prior art ensures the same transmit power within one SRS resource set, while in this embodiment, since one SRS resource set is configured for multiple uses, or two different SRS resource sets jointly perform the functions of beam selection and antenna switching, the transmit power of the two different SRS resource sets also remains the same.

[0174] Furthermore, the two SRS resource sets may be configured to have the same time domain behavior, where the so-called time domain behavior usually refers to one of periodic, semi-persistent, and aperiodic.

[0175] 102: The terminal sends an SRS according to the configuration information.

[0176] According to the configuration of the base station, the terminal uses the first antenna panel (ie, the first antenna group) to send each SRS resource of the first SRS resource set, and uses the second antenna panel (ie, the second antenna group) to send each SRS resource of the second SRS resource set.

[0177] like Figure 4 As shown, the terminal can use different transmit beams to send different SRS resources in the SRS resource set. The gray 2T (transmitting antenna) on the left side of the figure is located on the first antenna panel, corresponding to 4 beams; the gray 2T on the right side is located on the second antenna panel, corresponding to 4 beams.

[0178] For example: the terminal uses the first antenna panel to send the first SRS resource in the first SRS resource set (SRS resourceset #1) through the first beam; the terminal uses the first antenna panel to send the second SRS resource in the first SRS resource set through the second beam; the terminal uses the first antenna panel to send the third SRS resource in the first SRS resource set through the third beam; the terminal uses the first antenna panel to send the fourth SRS resource in the first SRS resource set through the fourth beam.

[0179] In the above process, the first antenna panel (including 2 antenna ports) sends SRS resources through multiple beams in sequence to perform beam scanning; after completing the SRS sending of the first antenna panel, it switches to the second antenna panel.

[0180] Similarly, the second antenna panel (including 2 antenna ports) sends SRS resources through multiple beams in sequence to perform beam scanning.

[0181] Similarly, the terminal uses the second antenna panel to send the first SRS resource in the second SRS resource set (SRSresource set #2) through the first beam; the terminal uses the second antenna panel to send the second SRS resource in the second SRS resource set through the second beam; the terminal uses the second antenna panel to send the third SRS resource in the second SRS resource set through the third beam; the terminal uses the second antenna panel to send the fourth SRS resource in the second SRS resource set through the fourth beam.

[0182] The terminal sending the SRS resource can be understood as the terminal sending the SRS on the allocated SRS resource, so as to facilitate the base station to measure the SRS.

[0183] If the configured SRS resource is a periodic resource, the above beam scanning process can be repeated periodically.

[0184] Therefore, in the above process, the terminal switches the antenna panels, and the two antenna panels respectively complete the beam scanning process. The base station can respectively determine the available beams corresponding to the two antenna panels through SRS measurement.

[0185] Optionally, the combination of SRS resources in two SRS resource sets has a preset binding relationship, for example:

[0186] The terminal may use the same transmission beam to transmit SRS resources with the same ID order in two SRS resource sets. For example, the terminal uses the first transmission beam of the first antenna panel to transmit the SRS resource with the smallest ID in the first SRS resource set, and the terminal uses the transmission beam of the second antenna panel in the same direction as the first transmission beam to transmit the SRS resource with the smallest ID in the second SRS resource set. Figure 4 The fifth to last SRS resource in the first SRS resource set and the fifth to last SRS resource in the second SRS resource set use the same transmission beam.

[0187] In addition, in another embodiment, the terminal may also use different transmission beams to transmit SRS resources with the same ID sequence in two SRS resource sets. That is, the terminal uses the first transmission beam of the first antenna panel to transmit the SRS resource with the smallest ID in the first SRS resource set, and the terminal uses the second antenna panel to transmit the SRS resource with the smallest ID in a different direction from the first transmission beam to transmit the SRS resource with the smallest ID in the second SRS resource set. For example Figure 4 The fifth to last SRS resource in the first SRS resource set and the fifth to last SRS resource in the second SRS resource set use different transmission beams.

[0188] 103: The base station determines the downlink beam and downlink channel of the terminal by measuring the SRS.

[0189] The base station can measure the SRS sent by the two antenna panels of the terminal in different beam directions respectively, so as to determine the beam direction that meets the quality requirements. For example, the beams with the best signal quality sent by the two antenna panels can be used as the downlink beam of the terminal; the beam corresponding to the SRS with the best quality can be used.

[0190] The base station can measure the received signal quality corresponding to multiple SRS resources of an SRS resource set, determine the downlink beam corresponding to an antenna panel (antenna group) based on the measurement results, and can use the downlink beam corresponding to the SRS with the best received signal quality as the available downlink beam of the antenna panel to facilitate downlink transmission; for example, the base station can perform beam selection through SRS-RSRP or other measurement methods.

[0191] In this embodiment, the base station can perform beam selection for the first transmitting antenna panel of the terminal by measuring the signal quality of multiple SRS resources in the first SRS resource set, and the base station can perform beam selection for the second transmitting antenna panel of the terminal by measuring the signal quality of multiple SRS resources in the second SRS resource set.

[0192] For example, Figure 4 As shown, the base station determines, through SRS measurement, that the first SRS resource in the first SRS resource set (the fifth SRS resource from the end in SRS resource set #1) is the SRS resource with the best quality. Since the SRS resource is sent through the first beam of the first antenna panel, the first beam is determined to be a suitable beam for the first antenna panel.

[0193] Similarly, the base station determines through SRS measurement that the fourth SRS resource in the second SRS resource set (the second to last SRS resource in SRSresource set #2) is the SRS resource with the best quality. Since the SRS resource is sent through the fourth beam of the second antenna panel, the fourth beam is determined to be a suitable beam for the second antenna panel.

[0194] The first beam and the fourth beam are the transmitting beams of the terminal. During downlink transmission, due to the consistency of the transmitting and receiving beams, the first beam and the fourth beam are used as receiving beams.

[0195] Measuring the SRS resource may also be understood as measuring the SRS sent on the SRS resource.

[0196] In another embodiment, each SRS resource of an SRS resource set may also be sent through the same beam, in which case it can be used for beam management of the base station so that the base station selects a suitable available beam.

[0197] In addition, the base station can obtain two 2T uplink channels by measuring the SRS resources of two SRS resource sets respectively, and the 4R downlink channel can be determined by merging the two 2Ts, that is, measuring the SRS resources of one SRS resource set can determine the uplink channel information of the two antenna ports, and measuring the SRS resources of two SRS resource sets can determine the uplink channel information of the four antenna ports, thereby determining the downlink channel information of the corresponding four antenna ports.

[0198] It can be understood that different combinations of SRS resources can obtain different channels.

[0199] For example, assuming that the base station also has four antennas, by measuring the signal of SRS resource 1 of two antennas, the uplink channel can be obtained as follows:

[0200]

[0201] Each element represents the channel from the terminal antenna to the base station antenna, such as The subscripts represent base station receiving antenna 1 and terminal transmitting antenna 1, and the superscript 1 represents transmit beam 1. Similarly, the base station can obtain the uplink channel as follows by measuring the signals of SRS resource 8 of the two antennas:

[0202]

[0203] The superscript 4 represents that the SRS resource is sent through transmit beam 4.

[0204] The base station combines the measurement results of the two SRS resources (SRS resource 1 and SRS resource 8) to obtain the uplink channel composed of transmit beam 1 and transmit beam 4 as follows:

[0205]

[0206] According to the reciprocity of uplink and downlink channels, the base station can infer that if the terminal uses the 4R receiving channel composed of the receiving beam corresponding to the transmit beam 1 and the receiving beam corresponding to the transmit beam 4 for downlink, it is the conjugate transpose of the above-mentioned uplink channel.

[0207]

[0208] It is easy to understand that if the base station measures SRS resource 6 (sent by transmit beam 2), another uplink channel can be obtained.

[0209]

[0210] Combining SRS resource 1 and SRS resource 2, the base station can infer that if the terminal uses the 4R receiving channel composed of the receiving beam corresponding to the transmit beam 1 and the receiving beam corresponding to the transmit beam 2 for downlink, it is:

[0211]

[0212] Obviously, and There are two different downlink channels, and the maximum channel capacities they can support are different, and the reception requirements for the terminal are also different. Therefore, reasonable base station scheduling should select the set of beams with larger channel capacity, for example, the receiving beam corresponding to the transmitting beam 1 and the receiving beam corresponding to the transmitting beam 2, and notify this information to the terminal.

[0213] Optionally, if the combination of SRS resources of two SRS resource sets has a preset binding relationship, for example, the channel obtained by measuring the first (with the smallest identifier) ​​SRS resource in the first SRS resource set and the first SRS resource in the second SRS resource set may be different from the channel obtained by measuring the first (with the smallest identifier) ​​SRS resource in the first SRS resource set and the second SRS resource in the second SRS resource set.

[0214] Possible selection methods for the base station include: combining SRS resources with the highest received signal strength in each SRS resource set, combining SRS resources in the same order in each SRS resource set, and so on.

[0215] It can be understood that the 4R downlink channel obtained by the base station is a 4R channel under the premise that the beams of the two antenna panels of the terminal are consistent when receiving and transmitting, that is, the terminal maintains the consistency of the transmit and receive beams. The consistency of transmit and receive beams is also called beam correspondence, which can be simply understood as the beam directions of the received and transmitted signals are the same or the deviation is small.

[0216] The purpose of the base station determining the downlink channel of the terminal is to prepare to adjust the modulation and coding mode, number of streams, frequency domain resources and other transmission parameters of the data transmission to match the channel conditions and perform data transmission. For example, the higher the channel quality, the higher the supported adjustment coding order, and the higher the transmission efficiency per unit time-frequency resource.

[0217] In addition, it also includes adjustments to multi-user scheduling strategies, such as giving priority to users with good channel quality, which is conducive to improving the overall capacity of the cell.

[0218] 104. The base station notifies the terminal of a receiving beam for downlink transmission.

[0219] The base station can notify the terminal of the identifiers of the best quality SRS resources corresponding to the two antenna panels determined by measurement. Since one SRS is sent through one beam, the terminal can know the available beams of each of the two antenna panels. The terminal can receive downlink signals or data sent by the base station according to the available beams, and can also send uplink signals or data to the base station according to the available beams.

[0220] In one example, the base station can notify the terminal of the receiving beam information through the TCI state, and then the terminal can receive the downlink data or signal sent by the base station based on the receiving beam notified by the base station.

[0221] The base station can configure the beam by configuring the TCI state. The TCI state is generally configured through RRC signaling. The base station can configure one or more TCI states, and when it needs to instruct the terminal to switch the beam, it can notify the terminal of the identifiers (TCI state IDs) of different TCI states.

[0222] In this embodiment, a typical TCI state includes the following content, wherein the most relevant part is SRS as a reference signal of QCL type E. In addition, the TCI state also includes information such as TCI state ID, cell ID and BWP ID of the reference signal.

[0223] Among them, QCL type E is a newly defined QCL type for the method of this embodiment, which is used to indicate that the transmit beam and the receive beam are consistent with respect to the spatial domain parameters. That is, it indicates that the terminal can use the receive beam corresponding to the transmit beam of SRS for downlink reception. The downlink reception here includes but is not limited to the reception of PDSCH, PDCCH, PDSCH-DMRS, PDCCH-DMRS, and CSI-RS. Optionally, since the terminal in this embodiment uses two antenna panels to send different SRS resources respectively, the reference signal of QCL type E may also include two SRS resource identifiers.

[0224]

[0225] When TCI state is used for PDCCH reception, in addition to configuring multiple TCI states in RRC, you can also Figure 2 The MAC CE signaling shown notifies the terminal which TCI state corresponds to which TCI state ID to use.

[0226] When TCI state is used for PDSCH reception, in addition to configuring multiple TCI states in RRC, the TCI field in DCI can also be used to notify the terminal which TCI state corresponding to the TCI state ID needs to be used.

[0227] When TCI state is used for CSI-RS reception, in addition to configuring multiple TCI states in RRC, the qcl-info parameter of each CSI-RS resource can also be specifically configured in RRC to notify the terminal which TCI state corresponding to which TCI stateID needs to be used to receive which CSI-RS resource.

[0228] The following operations are optional operations. The terminal may transmit downlink data or signals to the base station based on the obtained downlink beam, or may transmit the above data or signals based on the obtained downlink beam, for example:

[0229] 105: The base station sends a CSI-RS, and the terminal measures a downlink channel. This process is optional.

[0230] After the base station determines the terminal's downlink 4R channel, the base station and the terminal can perform subsequent downlink transmissions, such as data transmission, based on the determined 4R channel. Downlink CSI measurement and reporting can also be triggered again. This operation is optional. The main reason is that the channel information obtained through uplink SRS measurement cannot reflect the interference information that may occur during downlink transmission. Therefore, downlink measurement and reporting can be performed to correct the downlink 4R channel.

[0231] Generally, in order to obtain interference information, during downlink CSI measurement, additional interference measurement resources may be configured on the basis of configuring channel measurement resources.

[0232] Generally, in the downlink CSI measurement process, the resources used for downlink CSI measurement are CSI-RS resources. Correspondingly, the interference measurement resources are also CSI-RS resources.

[0233] In this operation, since the downlink beam of the terminal has been determined in 103, the base station can instruct the terminal how to receive CSI-RS. In the prior art (R15 / 16 standard), the base station can inform the terminal how to measure the CSI-RS resource by configuring the qcl-info of the CSI-RS resource in RRC. The qcl-info field is assigned a value of TCI state, which is used to indicate the downlink beam of the terminal. In one embodiment, the specific indication method can refer to the description of 104.

[0234] In this embodiment, similarly, the base station can notify the terminal how to receive the CSI-RS resource through the qcl-info field, especially notify the terminal to receive the simulated beam of the CSI-RS, because the base station determines the downlink receiving beam of the terminal by measuring the SRS in 103. Therefore, qcl-info may include relevant information of the SRS.

[0235] Furthermore, qcl-info, or TCI state, should include relevant information of at least one SRS resource.

[0236] There are several possible ways to communicate this information, such as:

[0237] 1. The TCI state includes two SRS resource identifiers, for example, the identifier of the fifth-to-last SRS resource in SRS resource set #1 and the identifier of the second-to-last SRS resource in SRS resource set #2.

[0238] Or the TCI state includes an SRS resource identifier and an offset value of the SRS resource identifier. After obtaining an SRS resource identifier, another SRS resource identifier can be obtained according to the offset value of the SRS resource identifier.

[0239] 2. The TCI state includes an SRS resource identifier. This method is applicable to the case where, in 102 and 103, the terminal sends or the base station selects a preset binding relationship for the combination of SRS resources of two SRS resource sets. After obtaining an SRS resource identifier, another SRS resource identifier can be obtained according to the preset binding relationship.

[0240] The terminal can use the corresponding beam to receive the CSI-RS sent by the base station according to the notification of the base station, and perform measurement to determine the appropriate downlink channel. This process will not be described in detail.

[0241] 106: The base station schedules transmission of PDSCH.

[0242] In the prior art, a base station may schedule a PDSCH through DCI, and include a TCI field in the DCI to indicate a TCI state corresponding to the PDSCH transmission.

[0243] In this embodiment, similarly, the base station can inform the terminal how to receive the PDSCH through the TCI state.

[0244] In one embodiment, the specific content and notification method in the TCI state can refer to the description in 104.

[0245] The terminal can receive the PDSCH sent by the base station based on the receiving beam notified by the base station, and can also receive downlink information such as PDCCH and CSI-RS.

[0246] 107: The base station schedules the transmission of PUSCH.

[0247] In addition, when the base station instructs the terminal to send uplink data, that is, PUSCH (physical uplink shared channel) transmission, it notifies the terminal of the precoding information used by indicating SRI (SRS resource indicator / index) in DCI. Among them, SRI can only be the identifier of the SRS resource configured for CB or NCB, and cannot be the resource identifier of the SRS configured for BM or AS. Therefore, if the base station wants to notify the terminal to update the transmission beam of PUSCH, it needs to first update the transmission beam of the SRS resource of CB / NCB, which brings complex signaling overhead.

[0248] In this embodiment, the base station can notify the terminal how to send the PUSCH by configuring a unified TCI state. For the specific content of the so-called unified TCI state, an example can refer to the description in 104.

[0249] The terminal can send PUSCH to the base station based on the receiving beam notified by the base station.

[0250] In another embodiment, a typical TCI state for PUSCH includes the following content, wherein the most relevant part is SRS as a reference signal of QCL type F. In addition, the TCI state also includes information such as TCI state ID, cell ID and BWP ID of the reference signal.

[0251] Among them, QCL type E is a newly defined QCL type for the method of this embodiment, and in addition to the functions described in 104, is also used to indicate that the SRS transmission beam and the PUSCH transmission beam are consistent with respect to spatial domain parameters. That is, it indicates that the terminal can use the SRS transmission beam to perform PUSCH transmission.

[0252] Optionally, QCL type E can also be used to indicate that the receiving beam and the transmitting beam are consistent with respect to spatial domain parameters, that is, to indicate that the terminal can use the transmitting beam corresponding to the receiving beam of the downlink signal, such as SSB or CSI-RS, for uplink transmission.

[0253] Optionally, other QCL types may be newly defined to distinguish these different functions.

[0254] ●QCL Type E: The transmit beam of the reference signal and the receive beam of the target signal are consistent with respect to spatial domain parameters.

[0255] ●QCL type F: The transmit beam of the reference signal and the transmit beam of the target signal are consistent with respect to spatial domain parameters.

[0256] ●QCL Type G: The receive beam of the reference signal and the transmit beam of the target signal are consistent with respect to spatial domain parameters.

[0257] Optionally, the transmit beam here can be used for transmission including but not limited to PUSCH, PUCCH, and SRS.

[0258] Optionally, since the terminal in this embodiment uses two antenna panels to send different SRS resources respectively, the reference signal of QCL type E may also include two SRS resource identifiers.

[0259]

[0260] When TCI state is used for PUCCH transmission, in addition to configuring multiple TCI states in RRC, the terminal can also be notified through MAC CE signaling which TCI state corresponding to the TCI state ID needs to be used.

[0261] When TCI state is used for PUSCH reception, in addition to configuring multiple TCI states in RRC, the TCI field in DCI can also be used to notify the terminal which TCI state ID to use. Optionally, the SRI field in DCI can be used to notify the terminal which TCI state ID to use.

[0262] When TCI state is used for SRS, in addition to configuring multiple TCI states in RRC, the transmission beam parameters of each SRS resource can also be specifically configured in RRC. For example, the spatial relation parameter is used to notify the terminal which TCI state corresponding to which TCI state ID needs to be used to send which SRS resource.

[0263] The terminal can send uplink information such as PUSCH, PUCCH, SRS, etc. to the base station based on the beam information notified by the base station.

[0264] This method requires adding a new field in the DCI format for scheduling PUSCH.

[0265] Taking into account the terminal power consumption, the TCI state may include only an SRS resource identifier. During uplink transmission, the terminal uses the transmit beam corresponding to the resource identifier to send PUSCH. During downlink transmission, the terminal uses two receive antenna panels to form two analog beams for PDSCH reception according to the method in 103.

[0266] The above 105 to 107 are optional operations, and there is no strict order. Figure 5 Combine.

[0267] Optionally, if the DCI format of the prior art is still retained, the SRI in the DCI may point to an SRS resource in an SRS resource set whose usage is configured as 'BM+AS'.

[0268] In the above embodiment, the usage of the SRS resource set is configured as Antenna switch + Beam Management. The terminal can switch the antenna panel between different SRS resource sets, and the SRS resources in an SRS resource set are used for the transmission beam selection of an antenna panel. This facilitates the terminal to simultaneously implement the functions of beam selection and antenna switching, so that the downlink channel measured by the base station is no longer limited to the range of a simulated beam direction, which is more conducive to improving the downlink transmission rate.

[0269] Optionally, in another embodiment, it can also be implemented by configuring an SRS resource set. The usage of this SRS resource set is configured as Antenna switch + Beam Management. It includes 8 SRS resources. The terminal can switch the antenna panel between the first 4 SRS resources and the last 4 SRS resources of the SRS resource set, and the first 4 SRS resources and the last 4 SRS resources are used for the transmission beam selection of an antenna panel. Its operation is similar to the above embodiment and will not be described in detail.

[0270] Optionally, in another embodiment, the usage of the SRS resource set is also configured as Antenna switch+nonCodebook. For example, an SRS resource set is configured for the terminal according to the capability information fed back by the terminal. For example, if the terminal capability is 2T4R, the base station can configure two SRS resource sets for the terminal, each SRS resource set includes multiple SRS resources, such as 4 SRS resources, and the number of resources can be determined according to the number requested by the terminal; since the terminal supports 2T, each SRS resource is a 2-port resource and can be sent through 2 antenna ports. The terminal can switch antenna panels between different SRS resource sets, and the SRS resources in an SRS resource set are used for transmission codebook trial of an antenna panel, that is, the terminal can use different transmission codebooks to send SRS on different SRS resources. This enables the base station to select a suitable transmission codebook for each antenna panel of the terminal.

[0271] Optionally, in another embodiment, the usage of the SRS resource set is also configured as Antenna switch+Codebook. For example, an SRS resource set is configured for the terminal based on the capability information fed back by the terminal. For example, if the terminal capability is 2T4R, the base station can configure two SRS resource sets for the terminal, and each SRS resource set includes 1 SRS resource; since the terminal supports 2T, each SRS resource is a 2-port resource and can be sent through 2 antenna ports. The terminal can switch antenna panels between different SRS resource sets, and the SRS resources within an SRS resource set are used by the terminal to send SRS signals. This enables the base station to calculate a suitable transmission codebook for each antenna panel of the terminal.

[0272] Optionally, in another embodiment, the usage of the SRS resource set is also configured as Beam Management+nonCodebook. For example, an SRS resource set is configured for the terminal based on the capability information fed back by the terminal. For example, if the terminal capability is 4 transmit beams, the base station can configure 4 SRS resource sets for the terminal, and each SRS resource set includes 4 SRS resources. The terminal can switch the transmit beam between different SRS resource sets, and the SRS resources in an SRS resource set are used for the transmission codebook trial of a transmit beam. This enables the base station to select a suitable transmission codebook for each transmit beam of the terminal.

[0273] Optionally, in another embodiment, the usage of the SRS resource set is also configured as Beam Management+Codebook. For example, an SRS resource set is configured for the terminal according to the capability information fed back by the terminal. For example, if the terminal capability is 4 transmit beams and 1 transmit antenna panel, the base station can configure 4 SRS resource sets for the terminal, and each SRS resource set includes 1 SRS resource. The terminal can switch the transmit beam between different SRS resource sets, and the SRS resources within an SRS resource set are used for the terminal to send SRS signals. This enables the base station to calculate a suitable transmission codebook for each transmit beam of the terminal. If the terminal capability is 4 transmit beams and 2 transmit antenna panels, the base station can configure 4 SRS resource sets for the terminal, and each SRS resource set includes 2 SRS resources. The terminal can switch the transmit beam between different SRS resource sets, and the SRS resources within an SRS resource set are used for the terminal to use different transmit antenna panels to send SRS signals. This enables the base station to calculate a suitable transmission codebook for each transmit beam of each transmit antenna panel of the terminal.

[0274] Embodiment 2

[0275] Different from the first embodiment, in the second embodiment, in addition to the number of antennas that can be used simultaneously when the terminal is transmitting is less than that when receiving, its multiple receiving antennas cannot all be used simultaneously, so the problem of selecting receiving antennas is also involved. Figure 6 and 7 The terminal includes 3 panels, each panel includes 2 antennas; Panel 1 (and the 2 antennas corresponding to Panel 1) exclusively occupies one or a group of RF channels RF chain, and Panel 2 and Panel 3 share one or a group of RF channels. Therefore, Panel 2 and Panel 3 cannot form 4R, and can only be combined with Panel 1 to form 4R.

[0276] 200: Terminal capability reporting.

[0277] Based on the first embodiment 100, the terminal capabilities newly added in this embodiment are:

[0278] The number of terminal transmit / receive antenna panels, for example, Figure 6 , the number of transmitting antenna panels is 3, and the number of receiving antenna panels is 3.

[0279] The number of transmit / receive antenna panels that the terminal can use simultaneously, for example, according to the above Figure 7 The number of transmitting antenna panels that can be used simultaneously is 1, and the number of receiving antenna panels that can be used simultaneously is 2 (Panel 1 + Panel 2 or Panel 1 + Panel 3).

[0280] 201: The base station sends configuration information to the terminal.

[0281] Similar to the first embodiment, but according to the capability information fed back by the terminal in 200, the base station can configure 3 SRS resource sets, each of which has 4 SRS resources, and each SRS resource is a 2-port resource. The usage of these three SRS resource sets is configured as 'beam management BM+antenna switching AS'. Among them, the terminal performs antenna switching between different SRS resource sets, and each SRS resource in the same SRS resource set is used for beam management of an antenna panel.

[0282] The information about which receiving antenna panels can be used simultaneously to form 4R is established between the base station and the terminal in various possible ways. For example:

[0283] 1. Protocol definition rules: Since in 200, the terminal has reported that it has three receiving antenna panels, but only two panels can be used simultaneously in downlink reception, and the base station has also configured three SRS resource sets for BM+AS purposes based on this capability, it can be predefined by the protocol to determine which antenna panels can be used simultaneously according to the SRS resource set identifier (SRS resourcesetID, hereinafter referred to as set ID). It can be based on the size of the ID, for example, the two SRS resource sets with the smallest set ID (for example: set ID = 1, 2) can be predefined by the protocol to be sent by the two receiving antenna panels that cannot be used simultaneously by the terminal, that is, if set ID = 1, 2, 3, then the terminal uses antenna panel 2 and panel 3 to send SRS resources in the two SRS resource sets with set ID = 1 and 2 respectively. This is because antenna panel 2 and panel 3 cannot be used at the same time.

[0284] 2. A method for configuring a base station, for example, the base station configures the SRS resource set of set ID=1, 2, and on the basis of the usage configuration being 'beam management BM+antenna switching AS', additionally indicates the requirement of being able to (or not being able to) receive simultaneously, and the terminal should use panel 1 and panel 2, or panel 1 and panel 3 to send the SRS resources in the two SRS resource sets of set ID=1, 2.

[0285] 3. Terminal feedback method: The terminal notifies the base station through explicit messages which SRS resource sets the receiving antenna panels corresponding to the transmitting antenna panels can receive simultaneously, for example, panels 1 and 2 or panels 1 and 3 can receive simultaneously.

[0286] The other operations of the second embodiment are similar to those of the first embodiment. You only need to execute the various operation processes in the first embodiment, and will not describe them in detail.

[0287] It can be understood that in the above-mentioned method embodiments, the methods and operations implemented by the terminal can also be implemented by components that can be used for the terminal (such as chips or circuits), and the methods and operations implemented by the network device can also be implemented by components that can be used for the network device (such as chips or circuits).

[0288] The above mainly introduces the scheme provided by the embodiments of the present application from the perspective of various interactions. It can be understood that each network element, such as a transmitting device or a receiving device, includes a hardware structure and / or software module corresponding to each function in order to implement the above functions. Those skilled in the art should be aware that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0289] The embodiment of the present application can divide the functional modules of the transmitting end device or the receiving end device according to the above method example. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The following is an example of using each functional module divided according to each function to illustrate.

[0290] It should be understood that the specific examples in the embodiments of the present application are only intended to help those skilled in the art to better understand the embodiments of the present application, rather than to limit the scope of the embodiments of the present application.

[0291] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0292] Above, combined Figures 3 to 7 The method provided by the embodiment of the present application is described in detail. Figures 8 to 13 The device provided in the embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the contents not described in detail can be referred to the method embodiment above, and for the sake of brevity, they will not be repeated here.

[0293] Figure 8 A schematic block diagram of a communication device 800 according to an embodiment of the present application is shown.

[0294] It should be understood that the device 800 may correspond to Figure 4 , the terminal or the chip in the terminal in the embodiment shown in 5 may have Figure 4 , any function of the terminal in the method embodiment shown in 5. The device 800 includes a transceiver module 810, and the transceiver module 810 can specifically include a receiving module and a sending module.

[0295] Receiving module, used to receive configuration information ( Figure 5 101), receiving a suitable downlink beam (104) notified by a network device, etc.;

[0296] Sending module, used to send terminal capabilities and SRS ( Figure 5 (100, 102) etc.

[0297] In one embodiment, the communication device comprises:

[0298] A receiving module, configured to receive configuration information sent by a network device, wherein the configuration information includes at least a first SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching;

[0299] The sending module is used to send each SRS resource in the first SRS resource set by using the first antenna group, and send each SRS resource in the second SRS resource set by using the second antenna group.

[0300] Optionally, each SRS resource in the same SRS resource set is sent through a different beam.

[0301] Optionally, SRS resources with the same identification order in the first SRS resource set and the second SRS resource set are sent using beams in the same direction.

[0302] Optionally, at least one parameter of the first SRS resource set and the second SRS resource set is the same: a path loss estimation reference signal, a time domain behavior, and a transmission power related parameter.

[0303] Optionally, a sending time interval between the first SRS resource set and the second SRS resource set is greater than or equal to an antenna group activation and / or switching time of the terminal.

[0304] Optionally, the transmission time interval between the first SRS resource set and the second SRS resource set is less than or equal to the channel coherence time.

[0305] Optionally, it further includes receiving indication information sent by a network device, wherein the indication information includes at least one of information about a beam used by the first antenna group for downlink transmission and information about a beam used by the second antenna group for downlink transmission.

[0306] Optionally, the beam used for downlink transmission is the beam corresponding to the SRS with the best signal quality.

[0307] Optionally, the combination of SRS resources in two SRS resource sets has a preset binding relationship.

[0308] Optionally, the information of the beam used for downlink transmission is carried in qcl-info of CSI-RS configuration information, or is carried in DCI.

[0309] Furthermore, the device 800 may also include a processing module 820, and the processing module 820 is used to perform other operations in the method embodiment except sending and receiving.

[0310] For a more detailed description of the transceiver module 810 and the processing module 220, please refer to the relevant description in the above method embodiment, which will not be described again here.

[0311] Fig. 9 The communication device 900 provided in the embodiment of the present application is shown. The device 900 can be Figure 5 The device can be used as follows Fig. 9 The hardware architecture shown in FIG. 1 is a schematic diagram of a device for displaying a processor 910 and a transceiver 930. Optionally, the device may further include a memory 940. The processor 910, the transceiver 930 and the memory 940 communicate with each other via an internal connection path. Figure 8 The related functions implemented by the processing module 820 in the embodiment can be implemented by the processor 910, and the related functions implemented by the transceiver module 810 can be implemented by the processor 910 controlling the transceiver 930.

[0312] Optionally, the processor 910 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more integrated circuits for executing the technical solutions of the embodiments of the present application. Alternatively, the processor may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions). For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control a communication device (e.g., a base station, a terminal, or a chip, etc.), execute a software program, and process data of the software program.

[0313] Optionally, the processor 910 may include one or more processors, for example, one or more central processing units (CPUs). When the processor is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0314] The transceiver 930 is used to send and receive data and / or signals, and receive data and / or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and / or signals, and the receiver is used to receive data and / or signals.

[0315] The memory 940 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable readonly memory (EPROM), and compact disc read-only memory (CD-ROM). The memory 940 is used to store relevant instructions and data.

[0316] The memory 940 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 910 .

[0317] Specifically, the processor 910 is used to control the transceiver to transmit information with the terminal. For details, please refer to the description in the method embodiment, which will not be repeated here.

[0318] In a specific implementation, as an embodiment, the device 900 may also include an output device and an input device. The output device communicates with the processor 910 and can display information in a variety of ways. For example, the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. The input device communicates with the processor 910 and can receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.

[0319] Understandably, Fig. 9 Only a simplified design of the communication device is shown. In practical applications, the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement the present application are within the protection scope of the present application.

[0320] In a possible design, the device 900 may be a chip, for example, a communication chip that can be used in a terminal, and is used to implement the relevant functions of the processor 910 in the terminal. The chip may be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chip for implementing the relevant functions. The chip may optionally include one or more memories for storing program codes, and when the codes are executed, the processor implements the corresponding functions.

[0321] The embodiment of the present application also provides a device, which can be a terminal or a circuit. The device can be used to execute the action executed by the terminal in the above method embodiment.

[0322] Fig.10 A schematic block diagram of a communication device 1000 according to an embodiment of the present application is shown.

[0323] It should be understood that the communication device 1000 may correspond to Figure 5 The network device or the chip in the network device in the embodiment shown may have any function of the network device in the method. The apparatus 1000 includes a transceiver module 1010, which includes a receiving module and a sending module.

[0324] The sending module is used to send configuration information ( Figure 5 101), notifying the terminal of a suitable downlink beam (104), etc.;

[0325] The receiving module is used to receive the capability and SRS ( Figure 5 (100, 102) etc.

[0326] Optionally, the apparatus 1000 may further include a determination module 1020, which may be configured to perform other operations in addition to sending and receiving, such as measuring the SRS ( Figure 5 (in Chinese) 103) etc.

[0327] In one embodiment, the communication device comprises:

[0328] A sending module: configured to send configuration information to a terminal, wherein the configuration information includes at least a first sounding reference signal SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching;

[0329] Processing module: measuring that the terminal uses the first antenna group to send each SRS resource in the first SRS resource set, and measuring that the terminal uses the second antenna group to send each SRS resource in the second SRS resource set;

[0330] The SRS resources meeting the quality requirement in the first SRS resource set and the SRS resources meeting the quality requirement in the second SRS resource set are determined according to the measurement result.

[0331] Furthermore, the sending module is also used to notify the terminal of at least one of the beams corresponding to the SRS resources that meet the quality requirements in the first SRS resource set and the beams corresponding to the SRS resources that meet the quality requirements in the second SRS resource set.

[0332] Optionally, the beam corresponding to the SRS resource that meets the quality requirements is the beam corresponding to the SRS with the best signal quality.

[0333] Optionally, the combination of SRS resources in two SRS resource sets has a preset binding relationship.

[0334] Optionally, the information of the beam corresponding to the SRS resource that meets the quality requirements is carried in qcl-info of the channel state information reference signal CSI-RS configuration information, or is carried in the downlink control information DCI.

[0335] The beam corresponding to the above-mentioned SRS resource can be indicated by an SRS identifier to indicate the beam that the terminal can use for downlink transmission.

[0336] For a more detailed description of the transceiver module 1010 and the processing module 1020 , please refer to the relevant description in the above method embodiment, which will not be described again here.

[0337] Fig.11The communication device 1100 provided in the embodiment of the present application is shown. The device 1100 can be Figure 5 The network device described in. The device can be used as Fig.11 The hardware architecture shown in FIG. 1 may include a processor 1110 and a transceiver 1120 , and optionally, the device may further include a memory 1130 , wherein the processor 1110 , the transceiver 1120 and the memory 1130 communicate with each other via an internal connection path. Fig.10 The related functions implemented by the processing module 1020 in the embodiment can be implemented by the processor 1110 , and the related functions implemented by the transceiver module 1010 can be implemented by the processor 1110 controlling the transceiver 1120 .

[0338] Optionally, processor 1110 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more integrated circuits for executing the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions). For example, it may be a baseband processor or a central processing unit. A baseband processor may be used to process communication protocols and communication data, and a central processing unit may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of a software program.

[0339] Optionally, the processor 1110 may include one or more processors, for example, one or more central processing units (CPUs). When the processor is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0340] The transceiver 1120 is used to send and receive data and / or signals, and receive data and / or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and / or signals, and the receiver is used to receive data and / or signals.

[0341] The memory 1130 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable readonly memory (EPROM), and compact disc read-only memory (CD-ROM). The memory 1130 is used to store relevant instructions and data.

[0342] The memory 1130 is used to store program codes and data of the network device, and may be a separate device or integrated in the processor 1110 .

[0343] Specifically, the processor 1110 is used to control the transceiver to transmit information with the terminal. For details, please refer to the description in the method embodiment, which will not be repeated here.

[0344] In a specific implementation, as an embodiment, the device 1100 may also include an output device and an input device. The output device communicates with the processor 1110 and can display information in a variety of ways. For example, the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. The input device communicates with the processor 1110 and can receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.

[0345] Understandably, Fig.11 Only a simplified design of the communication device is shown. In practical applications, the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all network devices that can implement the present application are within the protection scope of the present application.

[0346] In a possible design, the device 1100 may be a chip, for example, a communication chip that can be used in a network device, and is used to implement the relevant functions of the processor 1110 in the network device. The chip may be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chips that implement the relevant functions. The chip may optionally include one or more memories for storing program codes, and when the codes are executed, the processor implements the corresponding functions.

[0347] The embodiment of the present application also provides a device, which can be a network device or a circuit. The device can be used to execute the actions executed by the network device in the above method embodiment.

[0348] Optionally, when the device in this embodiment is a terminal, Fig.12 A simplified schematic diagram of the terminal structure is shown. For ease of understanding and illustration, Fig.12 In the example, a mobile phone is used as a terminal. Fig.12 As shown, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used to process communication protocols and communication data, as well as to control the terminal, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input-output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminals may not have input-output devices.

[0349] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, Fig.12 Only one memory and processor are shown. In an actual terminal product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device. The memory may be set independently of the processor or may be integrated with the processor, which is not limited in the embodiments of the present application.

[0350] In the embodiments of the present application, the antenna and the radio frequency circuit having transceiver functions may be regarded as the transceiver unit of the terminal, and the processor having the processing function may be regarded as the processing unit of the terminal. Fig.12As shown, the terminal includes a transceiver unit 1210 and a processing unit 1220. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device used to implement the receiving function in the transceiver unit 1210 may be regarded as a receiving unit, and the device used to implement the sending function in the transceiver unit 1210 may be regarded as a sending unit, that is, the transceiver unit 1210 includes a receiving unit and a sending unit. The transceiver unit may sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit, etc. The receiving unit may sometimes be referred to as a receiver, a receiver, or a receiving circuit, etc. The sending unit may sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0351] It should be understood that the transceiver unit 1210 is used to perform sending operations and receiving operations on the terminal side in the above method embodiment, and the processing unit 1220 is used to perform other operations on the terminal except the sending and receiving operations in the above method embodiment.

[0352] For example, in one implementation, the processing unit 1220 is used to execute Figure 5 The transceiver unit 1210 is used to perform the processing operation on the terminal side. Figure 5 The transceiver unit 1210 is also used to perform other transceiver operations on the terminal side in the embodiment of the present application.

[0353] When the device is a chip, the chip includes a transceiver unit and a processing unit, wherein the transceiver unit may be an input / output circuit or a communication interface; and the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.

[0354] Optionally, when the device is a terminal, reference may also be made to Fig.13 As an example, the device can perform similar Fig. 9 The functions of the processor 910. Fig.13 In the apparatus, the apparatus includes a processor 1301, a sending data processor 1303, and a receiving data processor 1305. Figure 8 The processing module 820 in the illustrated embodiment may be Fig.13 The processor 1301 in the embodiment of the present invention performs the corresponding functions. Figure 8 The transceiver module 810 in the illustrated embodiment may be Fig.13 The sending data processor 1303 and the receiving data processor 1305 in the embodiment of the present invention. Fig.13 A channel encoder and a channel decoder are shown in the figure, but it can be understood that these modules do not constitute a restrictive description of this embodiment and are only illustrative.

[0355] Fig.14Another form of this embodiment is shown. The processing device 1400 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment can serve as the modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1403 and an interface 1404. The processor 1403 performs the functions of the above-mentioned processing module 820, and the interface 1404 performs the functions of the above-mentioned transceiver module 810. As another variation, the modulation subsystem includes a memory 1406, a processor 1403, and a program stored in the memory and executable on the processor, and the processor implements the method described in the embodiment when executing the program. It should be noted that the memory 1406 may be non-volatile or volatile, and its location may be located inside the modulation subsystem or in the processing device 1400, as long as the memory 1406 can be connected to the processor 1403.

[0356] When the device in this embodiment is a network device, the network device can be as follows Fig.15 As shown, for example, the device 150 is a base station. The base station can be applied to Figure 1 In the system shown, the functions of the network device in the above method embodiment are performed. The base station 150 may include one or more DUs 1501 and one or more CUs 1502. CU1502 may communicate with the next generation core network (NGcore, NC). The DU 1501 may include at least one antenna 15011, at least one radio unit 15015, at least one processor 15013 and at least one memory 15014. The DU 1501 part is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals to baseband signals, as well as part of baseband processing. CU1502 may include at least one processor 15022 and at least one memory 15021. CU1502 and DU1501 may communicate through an interface, wherein the control plane interface may be Fs-C, such as F1-C, and the user plane interface may be Fs-U, such as F1-U.

[0357] The CU 1502 part is mainly used for baseband processing, controlling the base station, etc. The DU 1501 and CU1502 can be physically set together or physically separated, that is, a distributed base station. The CU 1502 is the control center of the base station, which can also be called a processing unit, and is mainly used to complete the baseband processing function. For example, the CU 1502 can be used to control the base station to execute the operation process of the network device in the above method embodiment.

[0358] Specifically, the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the functions of the packet data convergence protocol (PDCP) layer and above are set in the CU, and the functions of the protocol layers below the PDCP, such as the radio link control (RLC) layer and the medium access control (MAC) layer, are set in the DU. For another example, the CU implements the functions of the radio resource control (RRC) and the packet data convergence protocol (PDCP) layer, and the DU implements the functions of the radio link control (RLC), MAC and physical (PHY) layers.

[0359] In addition, optionally, the base station 150 may include one or more radio frequency units (RU), one or more DUs and one or more CUs. Among them, the DU may include at least one processor 15013 and at least one memory 15014, the RU may include at least one antenna 15011 and at least one radio frequency unit 15015, and the CU may include at least one processor 15022 and at least one memory 15021.

[0360] For example, in one implementation, the processor 15013 is used to execute Figure 5 The processing steps on the network device side. The radio unit 15015 is used to perform Figure 5 The sending and receiving operations in .

[0361] In one example, the CU1502 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The memory 15021 and the processor 15022 may serve one or more boards. In other words, a memory and a processor may be separately set on each board. It may also be that multiple boards share the same memory and processor. In addition, necessary circuits may be set on each board. The DU1501 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The memory 15014 and the processor 15013 may serve one or more boards. In other words, a memory and a processor may be separately set on each board. It may also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be set on each board.

[0362] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0363] It should be understood that the processor can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software. The above processor can be a general processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be embodied as a hardware decoding processor to perform, or a combination of hardware and software modules in the decoding processor to perform. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0364] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0365] In the present application, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0366] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0367] The terms "component", "module", "system", etc. used in this specification are used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program and / or a computer. By way of illustration, both applications running on a computing device and a computing device can be components. One or more components may reside in a process and / or an execution thread, and a component may be located on a computer and / or distributed between two or more computers. In addition, these components may be executed from various computer-readable media having various data structures stored thereon. Components may, for example, communicate through local and / or remote processes according to signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system and / or a network, such as the Internet interacting with other systems through signals).

[0368] It should also be understood that the first, second and various numerical numbers involved in this document are only distinguished for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0369] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. Among them, the existence of A or B alone does not limit the number of A or B. Taking the existence of A alone as an example, it can be understood that there are one or more A.

[0370] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0371] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0372] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0373] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0374] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0375] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0376] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A resource configuration method, characterized in that: include: Receive configuration information sent by a network device, where the configuration information includes at least a first sounding reference signal SRS resource set and a second SRS resource set, and each SRS resource set is used for beam management + antenna switching; Using a first antenna group to send each SRS resource in the first SRS resource set, and using a second antenna group to send each SRS resource in the second SRS resource set; Among them, at least one parameter of the first SRS resource set and the second SRS resource set is the same: path loss estimation reference signal, time domain behavior, and transmission power related parameters.

2. The method of claim 1, wherein: Each SRS resource in the same SRS resource set is sent through a different beam.

3. The method of claim 1, wherein: The SRS resources with the same identification order in the first SRS resource set and the second SRS resource set are sent using beams in the same direction.

4. The method of claim 1, wherein: A time interval for sending the first SRS resource set and the second SRS resource set is greater than or equal to an antenna group activation and / or switching time of the terminal.

5. The method of claim 1, wherein: The transmission time interval between the first SRS resource set and the second SRS resource set is less than or equal to the channel coherence time.

6. The method according to any one of claims 1 to 5, further comprising receiving indication information sent by the network device, wherein the indication information includes at least one of information about the beam used by the first antenna group for downlink transmission and information about the beam used by the second antenna group for downlink transmission.

7. The method of claim 6, wherein: The beam used for downlink transmission is the beam corresponding to the SRS with the best signal quality.

8. The method of claim 6, wherein: The combination of SRS resources in two SRS resource sets has a preset binding relationship.

9. The method of claim 6, wherein: The information of the beam of the downlink transmission is carried in the qcl-info of the channel state information reference signal CSI-RS configuration information, or is carried in the downlink control information DCI.

10. The method of claim 6, further comprising: receiving downlink data or signals sent by the network device according to the indication information; or Send uplink data or signals to the network device according to the indication information.

11. The method according to any one of claims 1 to 10, further comprising: Reporting capability information of the terminal to the network device, the capability information including at least one of the following: The terminal supports SRS sets configured for a maximum of N purposes, where N is greater than or equal to 2; The terminal supports the SRS set being configured as beam management + antenna switching.

12. A resource measurement method, characterized in that: include: Sending configuration information to the terminal, where the configuration information includes at least a first sounding reference signal SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching; measuring each SRS resource in the first SRS resource set sent by the terminal using the first antenna group, and measuring each SRS resource in the second SRS resource set sent by the terminal using the second antenna group; Determine, according to the measurement result, an SRS resource in the first SRS resource set that meets the quality requirement and an SRS resource in the second SRS resource set that meets the quality requirement; Among them, at least one parameter of the first SRS resource set and the second SRS resource set is the same: path loss estimation reference signal, time domain behavior, and transmission power related parameters.

13. The method of claim 12, further comprising: At least one of the identifiers of the SRS resources meeting the quality requirement in the first SRS resource set and the identifiers of the SRS resources meeting the quality requirement in the second SRS resource set is notified to the terminal.

14. The method according to claim 12 or 13, wherein: The SRS resource that meets the quality requirement is the SRS resource with the best signal quality.

15. The method according to claim 12 or 13, wherein: The combination of SRS resources in two SRS resource sets has a preset binding relationship.

16. The method of claim 13, wherein: The identifier of the SRS resource that meets the quality requirement is carried in qcl-info of the channel state information reference signal CSI-RS configuration information, or is carried in the downlink control information DCI.

17. A communication device, characterized in that: include: Receiving module: used to receive configuration information sent by a network device, where the configuration information includes at least a first sounding reference signal SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching; A sending module: configured to use a first antenna group to send each SRS resource in the first SRS resource set, and use a second antenna group to send each SRS resource in the second SRS resource set; Among them, at least one parameter of the first SRS resource set and the second SRS resource set is the same: path loss estimation reference signal, time domain behavior, and transmission power related parameters.

18. The communication device according to claim 17, wherein: Each SRS resource in the same SRS resource set is sent through a different beam.

19. The communication device according to claim 17, wherein: The SRS resources with the same identification order in the first SRS resource set and the second SRS resource set are sent using beams in the same direction.

20. The communication device according to claim 17, wherein: A time interval for sending the first SRS resource set and the second SRS resource set is greater than or equal to an antenna group activation and / or switching time of the terminal.

21. The communication device according to claim 17, wherein: The transmission time interval between the first SRS resource set and the second SRS resource set is less than or equal to the channel coherence time.

22. The communication device according to any one of claims 17 to 21, further comprising receiving indication information sent by the network device, wherein the indication information includes at least one of information on the beam used by the first antenna group for downlink transmission and information on the beam used by the second antenna group for downlink transmission.

23. The communication device according to claim 22, wherein: The beam used for downlink transmission is the beam corresponding to the SRS with the best signal quality.

24. The communication device according to claim 22, wherein: The combination of SRS resources in two SRS resource sets has a preset binding relationship.

25. The communication device according to claim 22, wherein: The information of the beam of the downlink transmission is carried in the qcl-info of the channel state information reference signal CSI-RS configuration information, or is carried in the downlink control information DCI.

26. The communication device of claim 22, further comprising: receiving downlink data or signals sent by the network device according to the indication information; or Send uplink data or signals to the network device according to the indication information.

27. The communication device according to any one of claims 17 to 26, further comprising: Reporting capability information of the terminal to the network device, the capability information including at least one of the following: The terminal supports SRS sets configured for a maximum of N purposes, where N is greater than or equal to 2; The terminal supports the SRS set being configured as beam management + antenna switching.

28. A communication device, characterized in that: include: A sending module is used to send configuration information to a terminal, where the configuration information includes at least a first sounding reference signal SRS resource set and a second SRS resource set, and the purpose of each SRS resource set is beam management + antenna switching; Processing module: measuring each SRS resource in the first SRS resource set sent by the terminal using the first antenna group, and measuring each SRS resource in the second SRS resource set sent by the terminal using the second antenna group; Determine, according to the measurement result, the SRS resources in the first SRS resource set that meet the quality requirement and the SRS resources in the second SRS resource set that meet the quality requirement Among them, at least one parameter of the first SRS resource set and the second SRS resource set is the same: path loss estimation reference signal, time domain behavior, and transmission power related parameters.

29. The communication device of claim 28, further comprising: The sending module is further used to notify the terminal of at least one of the identifiers of the SRS resources meeting the quality requirement in the first SRS resource set and the identifiers of the SRS resources meeting the quality requirement in the second SRS resource set.

30. The communication device according to claim 28 or 29, wherein: The SRS resource that meets the quality requirement is the SRS resource with the best signal quality.

31. The communication device according to claim 28 or 29, wherein: The combination of SRS resources in two SRS resource sets has a preset binding relationship.

32. The communication device according to claim 29, wherein: The identifier of the SRS resource that meets the quality requirement is carried in qcl-info of the channel state information reference signal CSI-RS configuration information, or is carried in the downlink control information DCI.

33. A communication device, characterized in that: Includes processor, memory and transceiver; The transceiver is used to receive a signal or send a signal; The memory is used to store program code; The processor is configured to call the program code from the memory to execute the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 16.

34. A communication device, characterized in that: The method comprises: a processor, when the processor executes a computer program in a memory, the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 16 is executed.

35. A communication device, characterized in that: include: Memory and processor; The memory is used to store a computer program. When the processor executes the computer program in the memory, the communication device performs the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 16.

36. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a computer program or instructions, and when the computer program or instructions are executed on a computer, the computer is caused to perform the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 16.

37. A computer program product, characterized in that The computer program product comprises a computer program or instructions, and when the computer program or instructions are run on a computer, the computer is caused to perform the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 16.

38. A chip, characterized in that: A processor and a communication interface, wherein the processor is used to execute a computer program or instruction in a memory through the communication interface to implement the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 16.

Images