Communication method and device

Abstract

Provided are a communication method and device, a network device sending first information and second information to a terminal device, the first information being used for indicating a plurality of reference signal resources, the second information being used for indicating the network device to receive the plurality of reference signal resources by using the same beam, and / or sending the plurality of reference signal resources to the terminal device. The terminal equipment adopts different beams to send a plurality of reference signal resources; and the terminal equipment sends the plurality of reference signal resources by adopting different beams based on the first information and the second information, correspondingly, the network device receives a plurality of reference signal resources by using the same beam based on the first information and the second information, the plurality of reference signal resources being used for determining the first beam of the terminal device. Compared with determining the sending beam of the terminal equipment by using the reciprocity of the uplink and downlink channels, the determined sending beam of the terminal equipment is more suitable for the environment of the uplink channel, and the accuracy is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] Fifth-generation (5G) mobile communication technology uses higher carrier frequencies to achieve wireless communication with greater bandwidth and higher transmission rates. However, the higher carrier frequency causes the wireless signals transmitted by the transmitting device to experience more severe fading during propagation through space, resulting in shorter transmission distances. To overcome this problem, high-frequency communication employs analog beamforming technology, concentrating signal energy within a small angular range to form a signal similar to a "beam," thereby increasing transmission distance. Both network devices and terminal devices can use analog beamforming technology for transmission.

[0003] Currently, one method for determining the transmit beam of a terminal device is as follows: the network device sends multiple reference signals to the terminal device using the same beam; the terminal device polls multiple receive beams to receive the multiple reference signals and measures the multiple reference signals; based on the measurement results of the multiple reference signals, the terminal device determines a suitable receive beam; and based on the reciprocity of uplink and downlink channels, the suitable receive beam is used as the suitable transmit beam.

[0004] When the uplink and downlink channel environments differ, the transmit beam of the terminal device determined based on the reciprocity of the uplink and downlink channels is not the optimal transmit beam. Therefore, improving the accuracy of determining the transmit beam of the terminal device is a necessary consideration. Summary of the Invention

[0005] This application provides a communication method and apparatus to improve the accuracy of determining the transmission beam of a terminal device.

[0006] In a first aspect, this application provides a communication method that can be applied to the terminal side, such as a terminal device, or a communication module in the terminal device, or a processor, circuit, or chip (such as a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip or system-in-package (SIP) chip containing a modem core) in the terminal device responsible for communication functions. It can also be a logical node, logical module, or software that can realize all or part of the terminal functions.

[0007] Taking the application of this method to a terminal device as an example, the method includes: the terminal device receiving first information and second information; wherein, the first information is used to indicate a plurality of reference signal resources; the second information is used to instruct a network device to receive the plurality of reference signal resources using the same beam, and / or, the second information is used to instruct the terminal device to transmit the plurality of reference signal resources using different beams; the terminal device transmits the plurality of reference signal resources using different beams based on the first information and the second information, and the plurality of reference signal resources are used to determine the first beam of the terminal device.

[0008] In this design, the network device configures multiple reference signal resources to the terminal device through first information, and implicitly indicates through second information that these reference signal resources can be used to determine the terminal device's transmit beam. The terminal device transmits multiple reference signal resources using different beams, and the network device receives multiple reference signal resources using the same beam. The transmit beam of the terminal device can be directly determined through the measurement results of multiple reference signal resources. Compared with determining the transmit beam of the terminal device using the reciprocity of uplink and downlink channels, the determined transmit beam of the terminal device is more suitable for the uplink channel environment, thus improving accuracy.

[0009] In one possible implementation, the terminal device may also receive first measurement results of some or all of the plurality of reference signal resources; and determine the first beam based on the first measurement results.

[0010] In this implementation, the terminal device obtains the measurement results of the reference signal resources, understands the channel quality corresponding to each beam based on the measurement results, selects a suitable beam, and can accurately measure the reference signal resources in subsequent use without having to request the measurement results from the network device again.

[0011] In one possible implementation, the terminal device may also receive third information, which is used to indicate a first reference signal resource among the plurality of reference signal resources; and determine the first beam based on the first reference signal resource.

[0012] In this implementation, the network selects a suitable first reference signal resource based on the measurement results of multiple reference signal resources and indicates the first reference signal resource to the terminal device. The terminal device directly determines the first beam based on the first reference signal resource without comparing the measurement results, which simplifies the workload of the terminal device.

[0013] In one possible implementation, transmitting the plurality of reference signal resources using different beams includes transmitting the plurality of reference signal resources using different beams in different time-domain units.

[0014] In this implementation, the multiple reference signal resources include completely different time-domain units, which can avoid interference between the reference signal resources.

[0015] In one possible implementation, transmitting the plurality of reference signal resources using different beams includes: transmitting the plurality of reference signal resources using different beams over M time-domain units; wherein M is less than K, and K is the number of the plurality of reference signal resources.

[0016] In this implementation, all or part of the reference signal resources in the plurality of reference signal resources include the same time domain unit, thereby reducing the delay of the terminal device polling the transmitted beam.

[0017] In one possible implementation, the plurality of second reference signal resources transmitted on the first time domain unit correspond to different frequency domain units; wherein the first time domain unit belongs to the M time domain units, and the second reference signal resources belong to the plurality of reference signal resources.

[0018] In one possible implementation, each of the plurality of reference signal resources includes the same number of resource blocks. This ensures that the relevant parameters of the plurality of reference signal resources are consistent, and the measurement results of the plurality of reference signal resources can be directly compared.

[0019] In one possible implementation, each of the plurality of reference signal resources includes the same number of ports. This ensures that the relevant parameters of the plurality of reference signal resources are consistent, and the measurement results of the plurality of reference signal resources can be directly compared.

[0020] In one possible implementation, the first information is used to indicate a plurality of reference signal resources, specifically including: the first information is used to indicate a set of reference signal resources, the set of reference signal resources including the plurality of reference signal resources.

[0021] In one possible implementation, the terminal device may also receive fourth information, which is used to instruct the plurality of reference signal resources to be used for beam management.

[0022] Secondly, this application provides a communication method that can be executed by a network device, a module applied to the network device (e.g., a chip, chip system, or processor), or a logical node, logical module, or software capable of implementing all or part of the functions of the network device. Taking the method executed by a network device as an example, the method includes: the network device sending first information and second information; wherein, the first information is used to indicate a plurality of reference signal resources; the second information is used to instruct the network device to receive the plurality of reference signal resources using the same beam, and / or, the second information is used to instruct the terminal device to send the plurality of reference signal resources using different beams; the network device, based on the first information and the second information, receives the plurality of reference signal resources using the same beam; the plurality of reference signal resources are used to determine a first beam of the terminal device.

[0023] In this design, the network device configures multiple reference signal resources to the terminal device through first information, and implicitly indicates through second information that these reference signal resources can be used to determine the terminal device's transmit beam. The terminal device transmits multiple reference signal resources using different beams, and the network device receives multiple reference signal resources using the same beam. The transmit beam of the terminal device can be directly determined through the measurement results of multiple reference signal resources. Compared with determining the transmit beam of the terminal device using the reciprocity of uplink and downlink channels, the determined transmit beam of the terminal device is more suitable for the uplink channel environment, thus improving accuracy.

[0024] In one possible implementation, the network device measures the plurality of reference signal resources to obtain measurement results of the plurality of reference signal resources; the network device sends a first measurement result of some or all of the plurality of reference signal resources, the first measurement result being used to determine the first beam.

[0025] In this implementation, the terminal device obtains the measurement results of the reference signal resources, understands the channel quality corresponding to each beam based on the measurement results, selects a suitable beam, and can accurately measure the reference signal resources in subsequent use without having to request the measurement results from the network device again.

[0026] In one possible implementation, the network device measures the plurality of reference signal resources to obtain measurement results; the network device determines a first reference signal resource among the plurality of reference signal resources based on the measurement results; the network device sends third information, the third information being used to indicate the first reference signal resource, the first reference signal resource being used to determine the first beam.

[0027] In this implementation, the network selects a suitable first reference signal resource based on the measurement results of multiple reference signal resources and indicates the first reference signal resource to the terminal device. The terminal device directly determines the first beam based on the first reference signal resource without comparing the measurement results, which simplifies the workload of the terminal device.

[0028] In one possible implementation, receiving the plurality of reference signal resources using the same beam includes receiving the plurality of reference signal resources using the same beam in different time-domain units.

[0029] In one possible implementation, receiving the plurality of reference signal resources using the same beam includes: receiving the plurality of reference signal resources using the same beam across M time-domain units; wherein M is less than K, and K is the number of the plurality of reference signal resources.

[0030] In this implementation, the multiple reference signal resources include completely different time-domain units, which can avoid interference between the reference signal resources.

[0031] In one possible implementation, the plurality of second reference signal resources received on the first time domain unit correspond to different frequency domain units; wherein the first time domain unit belongs to the M time domain units, and the second reference signal resources belong to the plurality of reference signal resources.

[0032] In this implementation, all or part of the reference signal resources in the plurality of reference signal resources include the same time domain unit, thereby reducing the delay of the terminal device polling the transmitted beam.

[0033] In one possible implementation, each of the plurality of reference signal resources includes the same number of resource blocks; and / or, each of the plurality of reference signal resources includes the same number of ports. This ensures that the relevant parameters of the plurality of reference signal resources are consistent, and the measurement results of the plurality of reference signal resources can be directly compared.

[0034] In one possible implementation, the first information is used to indicate a plurality of reference signal resources, specifically including: the first information is used to indicate a set of reference signal resources, the set of reference signal resources including the plurality of reference signal resources.

[0035] In one possible implementation, the network device sends a fourth message indicating that the plurality of reference signal resources are used for beam management.

[0036] Thirdly, a communication device is provided, which can be the terminal device described in the first aspect above. The communication device possesses the functions of the terminal device. The communication device is, for example, a functional module in the terminal device, such as a baseband device or a chip system. Alternatively, the communication device can be the network device described in the first aspect above. The communication device possesses the functions of the network device. The communication device is, for example, a functional module in the network device, such as a baseband device or a chip system.

[0037] In one optional implementation, the communication device includes a baseband device and a radio frequency device. In another optional implementation, the communication device includes a processing unit (sometimes also called a processing module) and a transceiver unit (sometimes also called a transceiver module). The transceiver unit is capable of transmitting and receiving functions. When the transceiver unit performs the transmitting function, it can be called a transmitting unit (sometimes also called a transmitting module), and when the transceiver unit performs the receiving function, it can be called a receiving unit (sometimes also called a receiving module). The transmitting unit and the receiving unit can be the same functional module, which is called the transceiver unit and can perform both transmitting and receiving functions; or, the transmitting unit and the receiving unit can be different functional modules, and the transceiver unit is a collective term for these functional modules.

[0038] In one possible implementation, the communication device further includes a storage unit (sometimes also called a storage module), and the processing unit is configured to couple with the storage unit and execute programs or instructions in the storage unit to enable the communication device to perform the functions of the terminal device described in the first aspect above, or to perform the functions of the network device described in the second aspect above.

[0039] When the communication device has the functions of a terminal device, the communication device includes: a transceiver unit and a processing unit;

[0040] The transceiver unit is configured to receive first information and second information; wherein the first information is configured to indicate a plurality of reference signal resources; the second information is configured to instruct the network device to receive the plurality of reference signal resources using the same beam, and / or, the second information is configured to instruct the terminal device to transmit the plurality of reference signal resources using different beams; and based on the first information and the second information, to transmit the plurality of reference signal resources using different beams, wherein the plurality of reference signal resources are used to determine the first beam of the terminal device.

[0041] In one possible implementation, the transceiver unit is further configured to receive a first measurement result of some or all of the plurality of reference signal resources; the processing unit is configured to determine the first beam based on the first measurement result.

[0042] In one possible implementation, the transceiver unit is further configured to receive third information, the third information being used to indicate a first reference signal resource among the plurality of reference signal resources; the processing unit is configured to determine the first beam based on the first reference signal resource.

[0043] In one possible implementation, the transceiver unit is specifically used to transmit the plurality of reference signal resources using different beams in different time domain units; or, to transmit the plurality of reference signal resources using different beams in M ​​time domain units; wherein M is less than K, and K is the number of the plurality of reference signal resources.

[0044] In one possible implementation, the plurality of second reference signal resources transmitted on the first time domain unit correspond to different frequency domain units; wherein the first time domain unit belongs to the M time domain units, and the second reference signal resources belong to the plurality of reference signal resources.

[0045] In one possible implementation, each of the plurality of reference signal resources includes the same number of resource blocks; and / or, each of the plurality of reference signal resources includes the same number of ports.

[0046] In one possible implementation, the first information is used to indicate a set of reference signal resources, which includes the plurality of reference signal resources.

[0047] In one possible implementation, the transceiver unit is further configured to receive fourth information, which is used to instruct the plurality of reference signal resources to be used for beam management.

[0048] When the communication device has the functions of a network device, the communication device includes: a transceiver unit and a processing unit;

[0049] The transceiver unit is configured to transmit first information and second information; wherein the first information is configured to indicate a plurality of reference signal resources; the second information is configured to instruct a network device to receive the plurality of reference signal resources using the same beam, and / or, the second information is configured to instruct a terminal device to transmit the plurality of reference signal resources using different beams; and based on the first information and the second information, to receive the plurality of reference signal resources using the same beam; the plurality of reference signal resources are used to determine the first beam of the terminal device.

[0050] In one possible implementation, the processing unit is configured to measure the plurality of reference signal resources to obtain measurement results of the plurality of reference signal resources; the transceiver unit is further configured to transmit a first measurement result of some or all of the plurality of reference signal resources, the first measurement result being used to determine the first beam.

[0051] In one possible implementation, the processing unit is configured to measure the plurality of reference signal resources to obtain measurement results; determine a first reference signal resource among the plurality of reference signal resources based on the measurement results; the transceiver unit is further configured to transmit third information, the third information being used to indicate the first reference signal resource, and the first reference signal resource being used to determine the first beam.

[0052] In one possible implementation, the transceiver unit is specifically configured to receive the plurality of reference signal resources using the same beam across different time-domain units; or, to receive the plurality of reference signal resources using the same beam across M time-domain units; wherein M is less than K, and K is the number of the plurality of reference signal resources.

[0053] In one possible implementation, the plurality of second reference signal resources received on the first time domain unit correspond to different frequency domain units; wherein the first time domain unit belongs to the M time domain units, and the second reference signal resources belong to the plurality of reference signal resources.

[0054] In one possible implementation, each of the plurality of reference signal resources includes the same number of resource blocks; and / or, each of the plurality of reference signal resources includes the same number of ports.

[0055] In one possible implementation, the first information is used to indicate a set of reference signal resources, which includes the plurality of reference signal resources.

[0056] In one possible implementation, the transceiver unit is further configured to transmit fourth information, which is used to instruct the plurality of reference signal resources to be used for beam management.

[0057] Fourthly, a communication device is provided, including an interface circuit and a processor, and optionally, a memory. The memory stores a computer program. The processor is coupled to the memory and the interface circuit. When the processor reads the computer program or instructions, it causes the communication device to execute the method executed by the terminal device in the first aspect, or the method executed by the network device in the second aspect. For example, the interface circuit is used to receive signals from other communication devices besides the communication device and transmit them to the processor, or to send signals from the processor to other communication devices besides the communication device. The processor, through logic circuits or executable code instructions, implements the method executed by the terminal device in the first aspect or the method executed by the network device in the second aspect.

[0058] In one possible implementation, the communication device is a chip or a chip system. The chip system may consist of chips or may include chips and other discrete components.

[0059] Fifthly, a communication device is provided, including a processor, and optionally, a memory; the processor and the memory are coupled; the memory is used to store computer programs or instructions; the processor is used to execute part or all of the computer programs or instructions in the memory, and when the part or all of the computer programs or instructions are executed, to implement the functions of the terminal device in the first aspect above, or to implement the functions of the network device in the second aspect above.

[0060] In one possible implementation, the apparatus may further include a transceiver for transmitting signals processed by the processor or receiving signals input to the processor. The transceiver may perform the transmitting or receiving actions performed by the terminal device in the first aspect or by the network device in the second aspect.

[0061] In one possible implementation, the processing unit in the seventh aspect can be implemented by the processor, the storage unit in the seventh aspect can be implemented by the memory, and the transceiver unit in the seventh aspect can be implemented by the transceiver.

[0062] In one possible implementation, the communication device is a chip or a chip system. The chip system may consist of chips or may include chips and other discrete components.

[0063] In a sixth aspect, a computer-readable storage medium is provided for storing a computer program or instructions that, when executed, enable the implementation of the methods in the foregoing aspects.

[0064] In a seventh aspect, a chip is provided, comprising a processor, which, when executing a computer program or instructions, implements the methods in any possible implementation of any of the first to fourth aspects. Optionally, the chip may further include a memory, which may be composed of chips or may include chips and other discrete devices. The memory is used to store computer programs or instructions.

[0065] Eighthly, a circuit is provided for performing the methods in any possible implementation of the first or second aspect described above. The circuit may include chip circuitry. Optionally, the circuit may also be coupled to a memory.

[0066] Ninthly, a computer program product containing instructions is provided, which, when run on a computer, enables the methods in the above aspects to be implemented.

[0067] A tenth aspect provides a communication system comprising the terminal device described in the first aspect and the network device described in the second aspect. For example, the terminal device and the network device may be implemented using the communication apparatus described in the third, fourth, or fifth aspects. Attached Figure Description

[0068] Figure 1 This application provides a schematic diagram of the architecture of a communication system.

[0069] Figure 2 A schematic diagram of a communication architecture between a network device and a terminal device provided in an embodiment of this application;

[0070] Figure 3a A schematic diagram of an O-RAN system architecture provided in this application embodiment;

[0071] Figure 3b This application provides a diagram illustrating the network element function partitioning and protocol layer structure of an O-RAN device.

[0072] Figure 4 This is a schematic diagram of the structure of an analog filter provided in an embodiment of this application;

[0073] Figure 5 A flowchart illustrating a communication method provided in an embodiment of this application;

[0074] Figure 6 A schematic diagram of a device structure provided in an embodiment of this application;

[0075] Figure 7 This is a schematic diagram of a device structure provided in an embodiment of this application. Detailed Implementation

[0076] The technical solution of this application can be applied to various wireless communication systems, including but not limited to the fourth generation (4G) system (also known as the long term evolution (LTE) system), the fifth generation (5G) system (also known as the new radio (NR) system), or future mobile communication systems, etc., without any specific limitations.

[0077] Furthermore, the technical solutions provided in this application can be applied to device-to-device (D2D) scenarios, such as NR-D2D scenarios, or to vehicle-to-everything (V2X) communication scenarios, such as NR-V2X scenarios. For example, they can be used in fields such as intelligent driving, assisted driving, or intelligent connected vehicles. As another example, the technical solutions provided in this application can also be applied to factory manufacturing scenarios.

[0078] Furthermore, the technical solutions provided in this application can be applied to scenarios including but not limited to: terrestrial cellular communication, non-terrestrial network (NTN), satellite communication, high altitude platform station (HAPS) communication, integrated access and backhaul (IAB) communication, and reconfigurable intelligent surface (RIS) communication.

[0079] Figure 1 This is a schematic diagram of the architecture of the communication system used in the embodiments of this application. Figure 1 The communication system 1000 shown includes a wireless access network 100 and a core network 200. Optionally, the communication system 1000 also includes an Internet 300. The wireless access network 100 may include at least one network device (such as...). Figure 1 110a and 110b in the above), may also include at least one terminal device (such as Figure 1 (Referring to 120a-120j in the original text). Terminal devices connect to network devices wirelessly, and network devices connect to the core network 200 wirelessly or via wired connection. Core network devices and network devices can be independent physical devices, or they can integrate the functions of core network devices and the logical functions of network devices onto the same physical device. Alternatively, a single physical device can integrate some core network device functions and some network device functions. Terminal devices and network devices can be interconnected via wired or wireless connections. Figure 1 This is just an illustration; the communication system may also include other network devices, such as wireless repeaters and wireless backhaul devices. Figure 1 It is not shown in the middle.

[0080] The radio access network 100 can be a cellular system related to the 3rd generation partnership project (3GPP), such as 4G, 5G, or future mobile communication systems, or it can be a WiFi system. The radio access network 100 can also be an open radio access network (open RAN, O-RAN, or ORAN) or a cloud radio access network (CRAN). The radio access network 100 can also be a communication system that integrates two or more of the above systems.

[0081] Network devices are nodes in a radio access network (RAN), also known as access network devices or RAN nodes (or devices). Network devices help terminal devices achieve wireless access. Multiple network devices in the communication system 1000 can be nodes of the same type or different types.

[0082] In one possible scenario, network equipment can be a base station, an evolved NodeB (eNodeB), a transmitting and receiving point (TRP), a transmitting point (TP), a next-generation NodeB (gNB), a base station in a future mobile communication system, an access node in a WiFi system, an access point (AP) in a satellite, an integrated access and backhaul (IAB) node, or network equipment in a mobile switching center non-terrestrial network (NTN) communication system. This means it can be deployed on high-altitude platforms or satellites. Network equipment can also be a macro base station (such as...). Figure 1 110a), micro base stations or indoor stations (such as Figure 1 Network devices can be 110b), relay nodes or donor nodes, or wireless controllers in CRAN scenarios. Network devices can also function as base stations in device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, drone communication, and machine-to-machine (M2M) communication. Optionally, network devices can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, access network devices in V2X technology can be roadside units (RSUs).

[0083] In another possible scenario, multiple network devices collaborate to assist terminal devices in achieving wireless access, with each network device performing a portion of the base station's functions. For example, network devices can be central units (CUs), distributed units (DUs), CU-control plane (CPs), CU-user plane (UPs), or radio units (RUs). CUs and DUs can be separate entities or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs). It is understood that network devices can be CU nodes, DU nodes, or devices comprising both CU and DU nodes. Furthermore, CUs can be classified as network devices in the access network (RAN) or the core network (CN), without limitation.

[0084] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0085] A terminal device is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from network devices. Terminal devices include, but are not limited to, terminal equipment, user equipment (UE), mobile stations, and mobile terminals. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), the Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, intelligent transportation, and smart cities. Specifically, terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, aircraft, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technologies or device forms used in the terminal devices.

[0086] Network devices and terminal devices can be fixed in location or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of the network devices and terminal devices.

[0087] The roles of network devices and terminal devices can be relative. For example, Figure 1 The helicopter or drone 120i can be configured as a mobile network device. For terminal devices 120j that access the wireless access network 100 via 120i, terminal device 120i is a network device; however, for network device 110a, 120i is a terminal device, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a network device-to-network device interface protocol; in this case, 120i is also a network device relative to 110a. Therefore, both network devices and terminal devices can be collectively referred to as communication devices. Figure 1 110a and 110b can be referred to as communication devices with network equipment functions. Figure 1 The 120a-120j in the text can be referred to as communication devices with terminal equipment functions.

[0088] Communication between network devices and terminal devices, between network devices, and between terminal devices can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0089] In the embodiments of this application, the functions of the network device can be executed by modules (such as chips) within the network device, or by a control subsystem that includes network device functions. This control subsystem, including network device functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal device can be executed by modules (such as chips or modems) within the terminal device, or by a device that includes terminal device functions.

[0090] Figure 1 The communication between network devices and terminal devices in the communication system shown can also be represented in another form, such as... Figure 2 As shown, terminal device 10 includes a processor 101, a memory 102, and a transceiver 103; transceiver 103 includes a transmitter 1031, a receiver 1032, and an antenna 1033. Network device 20 includes a processor 201, a memory 202, and a transceiver 203; transceiver 203 includes a transmitter 2031, a receiver 2032, and an antenna 2033. Receiver 1032 can be used to receive information from network device 20 via antenna 1033, and transmitter 1031 can be used to send information to network device 20 via antenna 1033. Transmitter 2031 can be used to send information to terminal device 10 via antenna 2033, and receiver 2032 can be used to receive information from terminal device 10 via antenna 2033.

[0091] Figure 3a This is an example diagram of an O-RAN system applicable to embodiments of this application. Optionally, the O-RAN system may further include... Figure 3a Other components besides those shown. Network devices can also be called access network devices. For example... Figure 3aAs shown, the access network equipment (RAN, such as an eNB, gNB, or next-generation access network equipment) communicates with the core network (CN) via a backhaul link and with the user equipment (UE) via an air interface. Specifically, the baseband unit (BBU) in the access network equipment communicates with the core network via the backhaul link, and the radio unit (RU) in the access network equipment communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link. The BBU and RU may or may not be co-located. The BBU includes at least one control unit (CU) and at least one distributed unit (DU), which can communicate via at least one midhaul link.

[0092] Figure 3b This is a diagram showing the network element function division and protocol layer structure of an O-RAN device applicable to embodiments of this application.

[0093] In some examples, the CU is a logical node carrying the radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network equipment. The CU connects to network nodes such as the core network through interfaces, which can be interfaces such as E2 interfaces. Optionally, the CU may have some core network functions. The CU (e.g., PDCP layer and higher layers) connects to the DU (e.g., RLC layer and lower layers) through interfaces, which can be interfaces such as F1 interfaces. In some examples, these interfaces (e.g., F1 interfaces) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol of the F1 interface, defining the F1 signaling procedures in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0094] In some examples, the CU can be split into CU-CP (control unit-control plane) and CU-UP (control unit-user plane). CU-CP is a logical node carrying the RRC layer and PDCP-C (control plane part of PDCP) layer, used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the SDAP layer and PDCP-U (user plane part of PDCP) layer, used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the UPF (user plane function) in a 5G system, are responsible for data forwarding and receiving in terminal devices. The above CU and DU configurations are merely examples; the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements, such as by latency. Functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0095] In some examples, a DU is a logical node that carries the radio link control (RLC) layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0096] In some examples, the RU is a logical node carrying both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP transmission reception point (TRP), a remote radio head (RRH), or other similar entities. In some examples, the Low-PHY includes PHY processing functions such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0097] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a lower-layer split-control, user, and synchronization (LLS-CUS) interface through a fronthaul link. LLS-CUS may include LLS-C and LLS-U interfaces that provide the control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0098] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0099] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples.

[0100] The communication system and business scenarios (or application scenarios) described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios (or new application scenarios), the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0101] Currently, one method for determining the transmit beam of a terminal device is as follows: the network device transmits multiple reference signals to the terminal device using the same beam; the terminal device polls multiple receive beams to receive the multiple reference signals and measures them; based on the measurement results of the multiple reference signals, the terminal device determines a suitable receive beam; and based on the reciprocity of uplink and downlink channels, the suitable receive beam is used as the suitable transmit beam. However, when the uplink and downlink channel environments differ, the transmit beam determined by the terminal device based on uplink and downlink channel reciprocity is not necessarily the optimal transmit beam.

[0102] Based on this, this application proposes a communication method. In this method, a network device sends first information and second information to a terminal device. The first information indicates multiple reference signal resources, and the second information indicates that the network device uses the same beam to receive the multiple reference signal resources, and / or, the terminal device uses different beams to transmit the multiple reference signal resources. The terminal device transmits the multiple reference signal resources using different beams based on the first and second information. Correspondingly, the network device receives the multiple reference signal resources using the same beam based on the first and second information. The multiple reference signal resources are used to determine the terminal device's first beam. The network device configures multiple reference signal resources to the terminal device through the first information and implicitly indicates through the second information that these reference signal resources can be used to determine the terminal device's transmission beam. The terminal device transmits the multiple reference signal resources using different beams, and the network device receives the multiple reference signal resources using the same beam. The transmission beam of the terminal device can be directly determined through the measurement results of the multiple reference signal resources. Compared to determining the terminal device's transmission beam using the reciprocity of uplink and downlink channels, this method makes the determined transmission beam of the terminal device more suitable for the uplink channel environment, improving accuracy.

[0103] The relevant terms used in the embodiments of this application will be explained below. It should be noted that these explanations are for the purpose of making the embodiments of this application easier to understand, and should not be regarded as a limitation on the scope of protection claimed by this application.

[0104] (1) In communication protocols, reference signals are configured in the form of resources. Network devices will configure each reference signal to the terminal device in the form of resources. A resource is a configuration information unit, which usually includes parameters related to a reference signal, such as the time-frequency resource location of the reference signal, the number of ports, the time domain type (periodic / semi-static / aperiodic), etc.

[0105] "Transmitting multiple reference signal resources" and "transmitting reference signals on multiple reference signal resources" are interchangeable. "Reference signal" can also be called "measurement signal". For example, reference signal (or measurement signal) includes, but is not limited to, any of the following: downlink control information (DMRS), channel state information reference signal (CSI-RS), or sounding reference signal (SRS).

[0106] (2) Beam:

[0107] In the NR protocol, beaming can be represented as a spatial domain filter, spatial parameter, spatial setting, spatial setting, quasi-colocation (QCL) information, QCL assumption, QCL indication, etc. Beaming can be indicated by transmission configuration indication state (TCI-state) parameters or by spatial relation parameters. Therefore, in this application, beaming can be replaced by spatial filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (DL TCI-state, UL TCI-state), spatial relation, etc. These terms are also equivalent to each other. Beaming can also be replaced by other beaming terms, which are not limited in this application.

[0108] The beam used to transmit signals can be called a transmission beam (Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, or a spatial domain transmission setting. In this application, downlink beam, CSI-RS, TCI State, DLorjointTCI state, SSB, and TRS can be used interchangeably.

[0109] The beam used to receive signals can be called a reception beam (Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial domain reception setting, or a spatial reception setting. The uplink transmit beam can be indicated by a spatial relation, an uplink TCI-state, or an SRS resource (indicating the transmit beam using that SRS). In this application, uplink beam, UL TCI state, DLorjointTCI state, SRS, CSI-RS, SSB, and TRS are interchangeable.

[0110] The transmitting beam can refer to the distribution of signal strength in different directions in space after a signal is transmitted through an antenna, while the receiving beam can refer to the distribution of signal strength in different directions in space of a wireless signal received from an antenna.

[0111] Figure 4 A schematic diagram of an analog filter is presented. The analog filter has a set of phase shifters. By configuring the phase of each phase shifter, a coefficient is generated corresponding to that phase shifter; thus, a set of phase shifters corresponds to a set of coefficients. For example... Figure 4 The system includes three phase shifters, so a set of coefficients can include three coefficients: coefficient 1, coefficient 2, and coefficient 3. The input signal to each phase shifter is the same. The signal generated by superimposing a set of phases has different signal gains in different directions, thus forming a beam in space.

[0112] like Figure 4 The diagram shows the hardware structure of an analog filter, including baseband, radio frequency, analog beam control unit, phase shifters, and antenna array. Its main feature is the presence of phase shifters on the antenna board. The control unit can configure the phase of each phase shifter to generate multiple sets of different coefficients for the analog filter. This results in a beamforming effect when the signal, after passing through the phase shifters and being emitted from the antenna array, is superimposed with the phase shift corresponding to the phase shifter's phase. Figure 4In the example, the antenna board has three phase shifter devices, so a set of coefficients can include three coefficients: coefficient 1, coefficient 2, and coefficient 3. The multiple sets of different coefficients generated by the control unit originate from the analog beam control unit. The analog beam control unit can first select multiple sets of analog filter coefficients and inform the control unit. The analog beam control unit can be deployed on the baseband or it can be a separate unit.

[0113] (3) TCI-state:

[0114] Network devices can generate different beams pointing in different transmission directions. During downlink data transmission, when a network device uses a specific beam to send data to a terminal device, it needs to inform the terminal device of the transmitted beam information. This allows the terminal device to use the corresponding received beam to receive the data sent by the network device. In the 3GPP R15 / R16 protocol, the network device uses the TCI (Transmission Configuration Index) field in the Downlink Control Information (DCI) to indicate the relevant information about the transmitted beam used to the terminal device. Specifically, the TCI field is 3 bits in size and can represent 8 different field values ​​(codepoints). Each value in the TCI field corresponds to an index of a TCI-state, which uniquely identifies a TCI-state. The TCI-state includes several parameters that determine the relevant information about the transmitted beam. The TCI-state is configured by the network device for each terminal device.

[0115] Each TCI-state includes its own index tci-state id and two QCL-Info fields. Each QCL-Info field includes a cell field and a bwp-Id, indicating which cell and which bwp (bandwidth part) the TCI-state applies to. Different cells or different bwps within the same cell can be configured with different QCL-Info fields. The QCL-Info also includes a reference signal, indicating which reference signal resource constitutes a QCL (quasi-co-location) relationship. In the R15 / R16 protocols, the term "beam" is generally not used directly; it is usually replaced by other terms. For example, in data transmission and channel measurements, beams correspond to reference signal resources, with one beam corresponding to one reference signal resource. Therefore, when we say that a QCL relationship exists with a reference signal resource, we are essentially referring to which beam it constitutes a QCL relationship. A QCL relationship means that two reference signal resources (or two antenna ports, with a one-to-one correspondence between antenna ports and reference signal resources) share certain spatial parameters. Which spatial parameters are identical depends on the type of the QCL-Info, specifically its other field, qcl-Type. qcl-Type can have four values: {typeA, typeB, typeC, typeD}. Taking typeD as an example, typeD indicates that two reference signal resources have the same spatial reception parameter information, meaning the two beams have the same receiving beam. At most one of the two QCL-Info values ​​included in the TCI-state can be typeD.

[0116] TCI modes include joint mode and separate mode. In joint mode, both uplink and downlink transmissions between the TRP (network device) and the terminal device use the same beam or TCI state. In separate mode, the uplink and downlink transmissions between the TRP and the terminal device use different beams or TCI states. In this application, the network device can be a TRP or a device containing one or more TRPs. In joint mode, the TCI state can be called a joint TCI-State, which can be used for both uplink and downlink transmissions. In separate mode, the TCI state used for downlink transmission can be called a downlink TCI-State (dl-TCI-State), and the TCI state used for uplink transmission can be called an uplink TCI-State (ul-TCI-State). In this application, if a TCI state is a downlink TCI state or a joint state, the QCL type D reference signal in that TCI state can be understood as the reference signal corresponding to the reference signal resource in the QCL information of type D in the TCI state. The QCL resources in a TCI state can be understood as the reference signal resources in the QCL information of type D in the TCI state. If a TCI state is an uplink TCI state, the reference signal in that TCI state refers to the reference signal configured in that TCI state. For example, the reference signal configured in ssb-Index-r17, csi-RS-Index-r17, or srs-r17 in the structure of the above uplink TCI state. This reference signal can be CSI-RS, SRS, or SSB.

[0117] (4) The measurement results of the reference signal resources can be represented by parameters such as reference signal receiving power (RSRP), reference signal received quality (RSRQ), received signal strength indicator (RSSI), and signal to interference plus noise ratio (SINR).

[0118] To better illustrate the embodiments of this application, the methods provided by the embodiments of this application are described below with reference to the accompanying drawings. Unless otherwise specified below, the steps indicated by dashed lines in the accompanying drawings corresponding to the various embodiments of this application are optional steps. It should be noted that the technical details of the multiple embodiments provided in this application can be referenced to each other, each embodiment described below can exist independently, and multiple embodiments can also be combined with each other as an embodiment in the absence of logical errors.

[0119] Figure 5 This is a flowchart illustrating a communication method provided in an embodiment of this application. Figure 5 This application illustrates the method using terminal devices and network devices as the executing entities in the interaction demonstration, but it does not limit the executing entities of the interaction demonstration. For example, Figure 5 The method executed by the terminal device can also be executed by the communication module in the terminal device, or by the circuit or chip in the terminal device responsible for communication functions; Figure 5 The method executed by the network device can also be executed by a module applied to the network device (e.g., a chip, chip system, or processor), or by a logical node, logical module, or software that implements all or part of the functions of the network device. The communication method provided in this application can be applied to, for example... Figure 3a The network equipment in the O-RAN system shown can be replaced with a CU (CU-CP or CU-UP), DU, or RU in the O-RAN system. For details, please refer to [reference needed]. Figure 3a The description of O-RAN systems in the literature, and the communication method provided in this application, can be applied to, for example... Figure 3b The O-RAN system shown.

[0120] like Figure 5 As shown, the method may include the following steps:

[0121] Step 501: The network device sends the first information and the second information; correspondingly, the terminal device receives the first information and the second information.

[0122] The first information is used to indicate multiple reference signal resources. One possible example is that the first information is used to indicate a set of reference signal resources, which includes multiple reference signal resources. Optionally, the maximum and / or minimum number of reference signal resources included in the set can be reported to the network device by the terminal device, wherein the number of multiple reference signal resources indicated by the first information is greater than or equal to the minimum number and less than or equal to the maximum number.

[0123] The second information is used to instruct the network device to receive the multiple reference signal resources indicated by the first information using the same beam, and / or, the terminal device to transmit the multiple reference signal resources indicated by the first information using different beams. Alternatively, the second information is used to instruct that the multiple reference signal resources (or reference signal resources in a set of reference signal resources) are received using the same spatial filtering reception parameters, and / or, the multiple reference signal resources (or reference signal resources in a set of reference signal resources) are transmitted using different spatial filtering transmission parameters. Still another way of describing it, the second information is used to instruct the terminal device to assume that the network device receives the multiple reference signal resources indicated by the first information using the same beam. If the second information instructs the network device to receive the multiple reference signal resources indicated by the first information using the same beam, this may implicitly instruct the terminal device to transmit the multiple reference signal resources indicated by the first information using different beams. Or, if the second information instructs the terminal device to transmit the multiple reference signal resources indicated by the first information using different beams, this may implicitly instruct the network device to receive the multiple reference signal resources indicated by the first information using the same beam.

[0124] In one possible example, the network device sends a first parameter to the terminal device, which indicates whether the network device uses the same beam to receive the multiple reference signal resources indicated by the first information, and / or whether the terminal device uses different beams to transmit the multiple reference signal resources indicated by the first information; in another description, the first parameter indicates whether the multiple reference signal resources (or reference signal resources in the set of reference signal resources) are received using the same spatial filtering reception parameters, and / or whether the multiple reference signal resources (or reference signal resources in the set of reference signal resources) are transmitted using different spatial filtering transmission parameters.

[0125] For example, the first parameter is the field "repetition". When this field is set to 'on', it indicates that: the network device uses the same beam to receive multiple reference signal resources indicated by the first information, and / or, the terminal device uses different beams to transmit the multiple reference signal resources indicated by the first information; or it indicates that: multiple reference signal resources (or reference signal resources in the reference signal resource set) are received using the same spatial filtering reception parameters, and / or, multiple reference signal resources (or reference signal resources in the reference signal resource set) are transmitted using different spatial filtering transmission parameters; or it indicates that: the terminal device can assume that the network device uses the same beam (or the same spatial filtering parameters) to receive the multiple reference signal resources indicated by the first information. Therefore, when the first parameter is set to "on", the first parameter represents the second information. When this field is set to "off", it means that: the network device uses different beams to receive the multiple reference signal resources indicated by the first information; or it means that: the multiple reference signal resources (or reference signal resources in the set of reference signal resources) are received with different spatial filtering reception parameters; or it means that: the terminal device cannot assume that the network device uses the same beam (or the same spatial filtering parameters) to receive the multiple reference signal resources indicated by the first information.

[0126] For example, the first parameter occupies one or more bits, and the value of the bit indicates different situations.

[0127] In another possible example, if the network device uses different beams to receive the multiple reference signal resources indicated by the first information, or if the terminal device cannot assume that the network device uses the same beam to receive the multiple reference signal resources indicated by the first information, then the network device does not send the relevant indication information to the terminal device, which can save signaling overhead.

[0128] The first and second information can be carried in one message or two separate messages. The first information can be carried in a radio resource control (RRC) configuration message or an RRC reconfiguration message. The second information can also be carried in an RRC configuration message, an RRC reconfiguration message, a medium access control-control element (MAC CE), or a DCI.

[0129] Optionally, the network device sends a fourth piece of information to the terminal device, and the terminal device receives the fourth piece of information. The fourth piece of information indicates that multiple reference signal resources are used for beam management, or indicates that a set of reference signal resources is used for beam management. For example, the "usage" of a reference signal resource (or set of reference signal resources) is configured as "beamManagement". The terminal device can learn from the fourth piece of information that the multiple reference signal resources indicated by the first information are used for beam management, where beam management includes, but is not limited to, determining the transmit beam and / or receive beam on the terminal device side.

[0130] Step 502: The terminal device transmits multiple reference signal resources using different beams based on the first information and the second information.

[0131] Optionally, the terminal device learns about the multiple reference signal resources based on the first information and determines, based on the second information, that the multiple reference signal resources can be transmitted using different beams.

[0132] The following describes how terminal equipment uses different beams to transmit multiple reference signal resources:

[0133] Assume that the terminal device transmits K reference signal resources, namely reference signal resource 1 to reference signal resource K, and the transmission beams on the terminal device side also include: beam 1 to beam K. The terminal device uses beam 1 to transmit reference signal resource 1, uses beam 2 to transmit reference signal resource 2, uses beam 3 to transmit reference signal resource 3, and so on, until it uses beam K to transmit reference signal resource K, thus completing the transmission of multiple reference signal resources using different beams.

[0134] Optionally, the first information indicates multiple reference signal resources. This process can be understood as the network device configuring multiple reference signal resources for the terminal device using a static configuration method. These multiple reference signal resources can only be used after activation. Then, after step 501 and before step 502, the network device can also send indication information to the terminal device, and the terminal device receives the indication information. This indication information is used to indicate the activation of the multiple reference signal resources. This indication information can be carried in downlink control information (DCI) or MAC CE signaling. In one possible implementation, the first information indicates N reference signal resources. Subsequently, the network device activates K reference signal resources out of the N reference signal resources, and the terminal device transmits the K reference signal resources using different beams. K is an integer greater than 2, and N is an integer greater than or equal to K.

[0135] Step 503: The network device receives multiple reference signal resources using the same beam based on the first information and the second information.

[0136] Multiple reference signal resources are used to determine the first beam of the terminal device. The first beam is the beam used for uplink transmission in the terminal device, and / or, the first beam is the beam used for downlink transmission in the terminal device. More specifically, the first beam is the beam in the terminal device used for uplink transmission with the network device, and / or, the first beam is the beam in the terminal device used for downlink transmission with the network device.

[0137] Optionally, the network device learns about the multiple reference signal resources based on the first information, and can determine that the multiple reference signal resources use the same beam reception based on the second information.

[0138] The following describes how network devices use the same beam to receive multiple reference signal resources:

[0139] Suppose a terminal device transmits K reference signal resources, namely reference signal resource 1 to reference signal resource K, and the receiving beams on the network device side include beams 1 to 3. One approach is to use one beam for each reference signal resource. Taking the use of beam 2 to receive any reference signal resource as an example: the network device uses beam 2 to receive reference signal resource 1, reference signal resource 2, reference signal resource 3, and so on, until it uses beam 2 to receive reference signal resource K. Another approach is to use multiple beams for each reference signal resource. Taking the use of beams 1 to 3 to receive any reference signal resource as an example: the network device uses beams 1 to 3 to receive reference signal resource 1, reference signal resource 2, reference signal resource 3, and so on, until it uses beams 1 to 3 to receive reference signal resource K. It should be noted that if a network device uses one beam to receive one reference signal resource and measures K reference signal resources, it will obtain K measurement results; if a network device uses three beams to receive one reference signal resource and measures K reference signal resources, it will obtain 3K measurement results.

[0140] In this embodiment, the network device configures multiple reference signal resources to the terminal device through first information, and implicitly indicates through second information that these reference signal resources can be used to determine the transmission beam of the terminal device. The terminal device transmits multiple reference signal resources using different beams, and the network device receives multiple reference signal resources using the same beam. The transmission beam of the terminal device can be directly determined through the measurement results of multiple reference signal resources. Compared with determining the transmission beam of the terminal device using the reciprocity of uplink and downlink channels, the determined transmission beam of the terminal device is more suitable for the uplink channel environment, thus improving accuracy.

[0141] The following are several examples of determining the first beam based on multiple reference signal resources;

[0142] Example 1: The network device sends the measurement results of the reference signal resources to the terminal device, and the terminal device determines the first beam based on the received measurement results.

[0143] For example, Figure 5 As shown, after step 503, step 504a is also included: the network device sends the measurement results of some or all of the multiple reference signal resources indicated by the first information to the terminal device (for ease of description, the measurement results sent by the network device to the terminal device are referred to as the first measurement results), and correspondingly, the terminal device receives the first measurement results of some or all of the multiple reference signal resources indicated by the first information, wherein the first measurement results are used to determine the first beam.

[0144] In this example, the terminal device learns the measurement results of the reference signal resources, understands the channel quality corresponding to each beam based on the measurement results, selects a suitable beam, and can accurately measure the reference signal resources in subsequent use without having to request the measurement results from the network device again.

[0145] For ease of description, the following example illustrates how a terminal device sends K (K is an integer greater than or equal to 2) reference signal resources to a network device.

[0146] After step 503 and before step 504a, the network device measures K reference signal resources to obtain measurement results for the K reference signal resources. After step 504a, the terminal device determines the first beam based on the first measurement results.

[0147] If a network device sends the first measurement results of K reference signal resources (i.e., the reference signal resources indicated by the first information) to a terminal device, the first measurement results can be arranged in the order in which the network device receives the reference signal resources (that is, in the order in which the terminal device sends the reference signal resources). In this way, the first measurement results do not need to carry the index of the reference signal resources, or do not need to indicate the index of the reference signal resources, and the terminal device can clearly know the measurement results corresponding to each reference signal resource.

[0148] If a network device sends a first measurement result of a portion of K reference signal resources to a terminal device, the first measurement result includes an index of the reference signal resources, or additionally indicates the index of the reference signal resources, so that the terminal device can determine the correspondence between the reference signal resources and the measurement results based on the index of the reference signal resources.

[0149] When a network device sends the first measurement results of all or part of the reference signal resources to a terminal device, each first measurement result can be a measured value, or the first measurement result can be indicated by a differential method. For example, the first measurement result includes the value corresponding to a certain measurement result A (e.g., the best measurement result, the worst measurement result, or any measurement result in the first measurement results), and the values ​​corresponding to the other measurement results are represented by the differences from the values ​​corresponding to measurement result A. For example, the network device sends the measurement results of three reference signal resources (e.g., RSRP) to the terminal device, and the values ​​corresponding to these three measurement results are -50, -80, and -90, respectively. The network device sends the value -50 corresponding to the measurement result to the terminal device, as well as the differences -30 and -40. The value -80 corresponding to the measurement result can be obtained through the difference -30 and the value -50, and the value -90 corresponding to the measurement result can be obtained through the difference -40 and the value -50.

[0150] When the first measurement result is indicated by differential means, the first measurement result includes an index of the reference signal resource, or additionally indicates the index of the reference signal resource, so that the terminal device can know the correspondence between the reference signal resource and the measurement result based on the index of the reference signal resource.

[0151] The network device sends the first measurement results of a portion of the reference signal resources to the terminal device. The following is a description of the "first measurement results of the portion of the reference signal resources":

[0152] For example, the first measurement result of a portion of the reference signal resources may exceed a set threshold. That is, the network device sends the measurement result exceeding the set threshold to the terminal device.

[0153] For example, the first measurement result of some reference signal resources is the optimal measurement result. That is, the network device sends the optimal measurement result among the measurement results of K reference signal resources to the terminal device.

[0154] For example, the first measurement results of some reference signal resources are the measurement results located in the first f positions (f is an integer greater than or equal to 2) after being sorted from best to worst (or from good to bad). That is, the network device sends the best multiple measurement results from the K reference signal resources to the terminal device.

[0155] The number of measurement results sent by the network device to the terminal device, i.e., the number of reference signal resources sent, can be configured to the terminal device by RRC signaling, or it can be sent to the terminal device together with the first measurement result. When the first measurement result contains the number Y of reference signal resources sent (Y is an integer greater than or equal to 1), the terminal device can parse the indices of the subsequent Y reference signal resources and / or the measurement results of the Y reference signal resources in the first measurement result based on the number Y of reference signal resources.

[0156] The following is an example of how a terminal device determines a first beam based on a first measurement result:

[0157] If the first measurement result includes a measurement result of a reference signal resource, then the beam used by the reference signal resource corresponding to the first measurement result is the first beam. "The beam used by the reference signal resource" refers to "the beam that transmits the reference signal resource".

[0158] If the first measurement result includes multiple measurement results, where "multiple measurement results" refers to the measurement results of all or part of the K reference signal resources indicated by the first information, then the following applies:

[0159] For example: the optimal measurement result in the first measurement result is determined, and the beam used by the reference signal resource corresponding to the optimal measurement result is the first beam.

[0160] For example: Identify measurement results that exceed a set threshold in the first measurement results; the beam used by any reference signal resource among the reference signal resources corresponding to the measurement results exceeding the set threshold is the first beam. Alternatively, based on resource scheduling, select a suitable reference signal resource from the reference signal resources corresponding to the measurement results exceeding the set threshold; the beam used by this suitable reference signal resource is the first beam.

[0161] Example 2: The network device indicates a first reference signal resource to the terminal device, and the terminal device determines a first beam based on the first reference signal resource.

[0162] For example, such as Figure 5 As shown, after step 503, step 504b is also included: the network device sends third information to the terminal device, and the terminal device receives the third information accordingly; wherein, the third information is used to indicate the first reference signal resource among the plurality of reference signal resources, and the first reference signal resource is used to determine the first beam.

[0163] After step 503 and before step 504b, the network device measures the K reference signal resources indicated by the first information, obtains the measurement results of the K reference signal resources, and determines the first reference signal resource based on the measurement results of the K reference signal resources. After step 504a, the terminal device determines the first beam based on the first reference signal resource.

[0164] The first reference signal resource can be one or more reference signal resources. Here, "multiple reference signal resources" refers to a portion of the K reference signal resources indicated by the first information, rather than all K reference signal resources.

[0165] The following is an example of how a network determines the first reference signal resource based on the measurement results of K reference signal resources:

[0166] For example, the reference signal resource with the best measurement results is determined as the first reference signal resource.

[0167] For example, the measurement results of K reference signal resources are sorted from best to worst (or from good to bad), and the reference signal resource corresponding to the measurement results in the first f (f is an integer greater than or equal to 2) positions is determined as the first reference signal resource.

[0168] For example, all or part of the reference signal resources whose measurement results exceed a set threshold are identified as the first reference signal resource.

[0169] For example, any reference signal resource whose measurement result exceeds a set threshold is identified as the first reference signal resource.

[0170] The following is an example of third information indicating the first reference signal resource:

[0171] For example, the third information indicates the index of the first reference signal resource, or the Joint TCI state id, or the UL TCI state id. The reference signal resource with QCL-Type type D in the QCL-info of the Joint TCI state corresponding to the Joint TCI state id is the first reference signal resource. Similarly, the reference signal resource with QCL-Type type D in the QCL-info of the UL TCI state corresponding to the UL TCI state id is the first reference signal resource.

[0172] The following is an example of a terminal device determining a first beam based on a first reference signal resource:

[0173] If the first reference signal resource includes a reference signal resource, then the beam used by the first reference signal resource is the first beam.

[0174] If the first reference signal resource includes multiple reference signal resources, then "multiple reference signal resources" refers to a portion of the K reference signal resources indicated by the first information. The beam used by any one of the first reference signal resources is the first beam. Alternatively, based on resource scheduling, a suitable reference signal resource is selected from the first reference signal resources, and the beam used by that suitable reference signal resource is the first beam.

[0175] In this example, the network selects a suitable first reference signal resource based on the measurement results of multiple reference signal resources and indicates the first reference signal resource to the terminal device. The terminal device directly determines the first beam based on the first reference signal resource without comparing the measurement results, which simplifies the workload of the terminal device.

[0176] The first information indicates that the multiple reference signal resources satisfy at least one of the following conditions:

[0177] Condition 1a: The time domain units of multiple reference signal resources are completely different (or do not overlap, intersect, or interlock).

[0178] Alternatively, multiple reference signal resources may be transmitted through different time domain units; or only one reference signal resource may be transmitted within a time domain unit; or the terminal device may not expect to transmit multiple reference signal resources in a single time domain unit (here, multiple reference signal resources refer to more than two reference signal resources, not the K reference signal resources indicated by the first information).

[0179] For example, in step 502, the terminal device transmits multiple reference signal resources using different beams; specifically, the terminal device transmits the multiple reference signal resources using different beams in different time domain units. In step 503, the network device receives the multiple reference signal resources using the same beam; specifically, the network device receives the multiple reference signal resources using the same beam in different time domain units. The multiple reference signal resources include completely different time domain units, which avoids interference between the reference signal resources.

[0180] A time-domain unit includes one or more symbols, such as an orthogonal frequency divided multiplexing (OFDM) symbol.

[0181] Optionally, the time-domain interval between any two reference signal resources may be greater than or equal to the shortest beam switching time of the terminal device. This shortest time may be at the symbol level, millisecond level, or time slot level. The shortest beam switching time of the terminal device is part of the terminal device's capability information and can be communicated by the terminal device to the network device.

[0182] Condition 1b: All or some of the reference signal resources in the K reference signal resources have the same time domain units but different frequency domain units.

[0183] For example, in step 502, the terminal device transmits multiple reference signal resources using different beams. Specifically, the terminal device transmits the multiple reference signal resources using different beams across M time-domain units; where M is an integer greater than or equal to 1, M is less than K, and K is the number of multiple reference signal resources indicated by the first information. In step 503, the network device receives the multiple reference signal resources using the same beam. Specifically, the network device receives the multiple reference signal resources using the same beam across M time-domain units. In a specific example, M = K / 2, meaning two reference signal resources are transmitted per time-domain unit.

[0184] In this example, all or part of the reference signal resources in multiple reference signal resources include the same time domain unit, which reduces the delay of the terminal device polling the transmitted beam.

[0185] Further optionally, the multiple second reference signal resources transmitted on the first time domain unit correspond to different frequency domain units; wherein, the first time domain unit belongs to the M time domain units, and the second reference signal resources belong to the multiple reference signal resources indicated by the first information.

[0186] Conditions 1a and 1b are parallel, meaning that if condition 1a is satisfied, condition 1b is not satisfied; if condition 1b is satisfied, condition 1a is not satisfied.

[0187] For example, K reference signal resources are transmitted through M time-domain units. Each time-domain unit can transmit a maximum of X (X is an integer greater than or equal to 2) reference signal resources, and these X reference signal resources are frequency-divided. X depends on the capabilities of the terminal equipment. For example, if the terminal equipment can support the simultaneous transmission of up to X transmit beams, then it can support the simultaneous transmission of up to X reference signal resources. In other words, the terminal equipment does not expect more than X reference signal resources to be transmitted in a single time-domain unit. If the terminal equipment does not support simultaneous transmission or does not support simultaneous transmission of reference signal resources, then condition 1a is satisfied; if the terminal equipment supports simultaneous transmission and / or supports simultaneous transmission of reference signal resources, then condition 1b is satisfied. Supporting simultaneous transmission means that the terminal equipment has the capability to transmit simultaneously, for example, it can simultaneously transmit one or more of PUSCH, PUCCH, and reference signal resources.

[0188] Condition 2: Each of the multiple reference signal resources includes the same number of resource blocks.

[0189] Here, a resource block can be a resource block (RB), a resource element (RE), or a resource block group (RBG).

[0190] For example, in step 502, the terminal device transmits multiple reference signal resources using different beams; specifically, the terminal device transmits multiple reference signal resources using different beams on the same number of resource blocks. In step 503, the network device receives multiple reference signal resources using the same beam; specifically, the network device receives multiple reference signal resources using the same beam on the same number of resource blocks. This ensures that the relevant parameters of the multiple reference signal resources are consistent, and the measurement results of the multiple reference signal resources can be directly compared.

[0191] Condition 3: Each of the multiple reference signal resources includes the same number of ports.

[0192] For example, in step 502, the terminal device transmits multiple reference signal resources using different beams. Specifically, the terminal device transmits the multiple reference signal resources using different beams on the same number of ports. This ensures that the relevant parameters of the multiple reference signal resources are consistent, and the measurement results of the multiple reference signal resources can be directly compared.

[0193] The multiple reference signal resources indicated by the first information can simultaneously satisfy conditions 1a, 2, and 3, or satisfy one or more of them. Alternatively, the multiple reference signal resources indicated by the first information can simultaneously satisfy conditions 1b, 2, and 3, or satisfy one or more of them.

[0194] It is understood that, in order to achieve the functions in the above embodiments, the network device and terminal device include hardware structures and / or software modules corresponding to perform each function. Those skilled in the art should readily recognize that, based on the units and method steps of the various examples described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0195] Figure 6 and Figure 7 The diagram illustrates the possible structures of communication devices provided in embodiments of this application. These communication devices can be used to implement the functions of network devices or terminal devices in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments.

[0196] like Figure 6As shown, the communication device 600 includes a processing unit 610 and a transceiver unit 620.

[0197] For example, the communication device 600 is used to achieve the above. Figure 5 The method embodiments shown illustrate the functions of the network device or terminal device. The transceiver unit 620 can perform the receiving and sending actions performed by the network device or terminal device in the above method embodiments. The processing unit 610 can perform other actions besides the sending and receiving actions performed by the network device or terminal device in the above method embodiments.

[0198] For example, when the communication device 600 is used to implement Figure 5 In the method embodiment shown, when the network device functions as follows: the transceiver unit 620 is used to send first information and second information, receive reference signal resources, send a first measurement result of part or all of the reference signal resources, and send third information. The processing unit 610 is used to generate first information, second information, and third information, measure the reference signal resources, and obtain measurement results, etc.

[0199] For example, when the communication device 600 is used to implement Figure 5 When the terminal device functions as shown in the method embodiment, the transceiver unit 620 is used to receive first information and second information, send reference signal resources, receive first measurement results of part or all of the reference signal resources, and receive third information.

[0200] For a more detailed description of the processing unit 610 and the transceiver unit 620, please refer to [link / reference needed]. Figure 5 The relevant descriptions in the illustrated method embodiments are directly derived and will not be repeated here. The processing unit 610 can be implemented using a processor, and the transceiver unit 620 can be implemented using a transceiver.

[0201] It should be understood that the division of units in the above device is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, all units in the device can be implemented entirely through software calls from processing elements; all units can be implemented entirely in hardware; or some units can be implemented through software calls from processing elements, and others in hardware. For example, each unit can be a separate processing element, or it can be integrated into a chip within the device. Alternatively, it can be stored as a program in memory, called and executed by a processing element of the device. Moreover, these units can be fully or partially integrated together, or implemented independently. The processing unit here can also be called a processor, which can be an integrated circuit with signal processing capabilities. In the implementation process, the operations of the above methods or the various units can be implemented through integrated logic circuits in the processor element or through software calls from processing elements.

[0202] In one example, a unit in any of the above devices can be one or more integrated circuits configured to implement the methods described above, such as: one or more application-specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs), or a combination of at least two of these forms of integrated circuits. As another example, when a unit in the device can be implemented in the form of a processing element scheduler, the processing element can be a processor, such as a general-purpose central processing unit (CPU), or other processor capable of calling programs. Furthermore, these units can be integrated together to implement a system-on-a-chip (SOC).

[0203] The receiving unit described above is an interface circuit of this device, used to receive signals from other devices. For example, when the device is implemented as a chip, this unit is an interface circuit for the chip to receive signals from other chips or devices. The transmitting unit described above is an interface circuit of this device, used to transmit signals to other devices. For example, when the device is implemented as a chip, this unit is an interface circuit for the chip to transmit signals to other chips or devices.

[0204] like Figure 7As shown, the communication device 700 includes a processor 710 and an interface circuit 720. The processor 710 and the interface circuit 720 are coupled to each other. It is understood that the interface circuit 720 can be a transceiver or an input / output interface. Optionally, the communication device 700 may also include a memory 730 for storing instructions executed by the processor 710, or storing input data required for the processor 710 to execute instructions, or storing data generated after the processor 710 executes instructions. Sometimes, the interface circuit 720 can also be understood as part of the processor 710, in which case the communication device 700 includes the processor 710.

[0205] When the communication device 700 is used to achieve the above Figure 5 In the method shown, the processor 710 is used to implement the functions of the processing unit 610, and the interface circuit 720 is used to implement the functions of the transceiver unit 620.

[0206] When the aforementioned communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiments. The terminal device chip receives information from a network device, which can be understood as the information being first received by other modules (such as an RF module or antenna) in the terminal device, and then sent to the terminal device chip by these modules. The terminal device chip sends information to a network device, which can be understood as the information being first sent to other modules (such as an RF module or antenna) in the terminal device, and then sent to the network device by these modules.

[0207] When the aforementioned communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments. The network device chip receives information from the terminal device, which can be understood as the information being first received by other modules (such as radio frequency modules or antennas) in the network device, and then sent to the network device chip by these modules. The network device chip sends information to the terminal device, which can be understood as the information being sent down to other modules (such as radio frequency modules or antennas) in the network device, and then sent to the terminal device by these modules. Here, the network device module can be the baseband chip of the network device, or a DU (Digital Unit) or other modules. The DU here can be a DU under the Open Radio Access Network (O-RAN) architecture.

[0208] In this application, entity A sends information to entity B, either directly or indirectly through other entities. Similarly, entity B receives information from entity A, either directly or indirectly through other entities. Entities A and B can be network devices or terminal devices, or modules within network devices or terminal devices. The sending and receiving of information can be between network devices and terminal devices, between two network devices (e.g., CU and DU), or between different modules within a single device (e.g., a terminal device chip and other modules within the terminal device, or a network device chip and other modules within the network device).

[0209] It is understood that the processor in the embodiments of this application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor.

[0210] This application also provides a computer-readable storage medium storing a computer program that, when executed by a computer, enables the computer to perform the aforementioned communication method. Alternatively, the computer program includes instructions for implementing the aforementioned communication method.

[0211] This application also provides a chip including a processor. When the processor executes a computer program or instructions, it implements the communication method provided above. Optionally, the chip may further include a memory. The chip may be composed of a single chip or may include chips and other discrete devices. The memory is used to store computer programs or instructions.

[0212] The application also provides a circuit for performing the communication method described above. This circuit may include a chip circuit. Optionally, the circuit may also be coupled to a memory.

[0213] This application also provides a computer program product, including: computer program code, which, when run on a computer, enables the computer to execute the communication method provided above.

[0214] This application also provides a communication system, which includes a terminal device and a network device for performing the above-described communication method.

[0215] The method steps in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, compact disc read-only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a base station or terminal. Of course, the processor and storage medium can also exist as discrete components in the base station or terminal.

[0216] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a first control plane network element, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer program or instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0217] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0218] In this application embodiment, the number of nouns, unless otherwise specified, refers to "singular nouns or plural nouns," that is, "one or more." "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A or B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. For example, A / B means: A or B. Expressions such as "at least one of the following" or "one or more of them" refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and / or c, or one or more of a, b and / or c, means: a, b, c, a and b, a and c, b and c, or a and b and c. Each of a, b, and c can be single or multiple.

[0219] The ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority, or importance of the multiple objects. Furthermore, such names do not indicate differences in the content, sending / receiving end, sending order, size, application scenario, priority, or importance of the two pieces of information. Additionally, the numbering of steps in the various embodiments described in this application is only to distinguish different steps and is not used to limit the order of steps.

Claims

1. A communication method, characterized in that, include: Receive first information and second information; wherein, the first information is used to indicate multiple reference signal resources; the second information is used to instruct the network device to receive the multiple reference signal resources using the same beam, and / or, the second information is used to instruct the terminal device to transmit the multiple reference signal resources using different beams; Based on the first information and the second information, the plurality of reference signal resources are transmitted using different beams, and the plurality of reference signal resources are used to determine the first beam of the terminal device.

2. The method as described in claim 1, characterized in that, Also includes: Receive the first measurement results of some or all of the plurality of reference signal resources; The first beam is determined based on the first measurement result; or, Receive third information, the third information being used to indicate a first reference signal resource among the plurality of reference signal resources; The first beam is determined based on the first reference signal resource.

3. The method as described in claim 1 or 2, characterized in that, The method of transmitting the multiple reference signal resources using different beams includes: The multiple reference signal resources are transmitted using different beams in different time-domain units; or... The plurality of reference signal resources are transmitted using different beams in M ​​time-domain units; wherein M is less than K, and K is the number of the plurality of reference signal resources.

4. The method as described in claim 3, characterized in that, The multiple second reference signal resources transmitted in the first time domain unit correspond to different frequency domain units; wherein, the first time domain unit belongs to the M time domain units, and the second reference signal resources belong to the multiple reference signal resources.

5. The method according to any one of claims 1-4, characterized in that, The plurality of reference signal resources include the same number of resource blocks in each reference signal resource; and / or, the plurality of reference signal resources include the same number of ports in each reference signal resource.

6. The method according to any one of claims 1-5, characterized in that, The first information is used to indicate multiple reference signal resources, specifically including: The first information is used to indicate a set of reference signal resources, which includes the plurality of reference signal resources.

7. The method according to any one of claims 1-6, characterized in that, Also includes: Receive fourth information, which is used to instruct the plurality of reference signal resources to be used for beam management.

8. A communication method, characterized in that, include: Sending first information and second information; wherein the first information is used to indicate multiple reference signal resources; the second information is used to instruct network devices to receive the multiple reference signal resources using the same beam, and / or, the second information is used to instruct terminal devices to send the multiple reference signal resources using different beams; Based on the first information and the second information, the plurality of reference signal resources are received using the same beam; the plurality of reference signal resources are used to determine the first beam of the terminal device.

9. The method as described in claim 8, characterized in that, Also includes: The plurality of reference signal resources are measured to obtain the measurement results of the plurality of reference signal resources; Transmit a first measurement result of some or all of the plurality of reference signal resources, the first measurement result being used to determine the first beam; or, The plurality of reference signal resources are measured to obtain measurement results; based on the measurement results, a first reference signal resource among the plurality of reference signal resources is determined. A third message is sent, which is used to indicate the first reference signal resource, and the first reference signal resource is used to determine the first beam.

10. The method as described in claim 8 or 9, characterized in that, The method of receiving the multiple reference signal resources using the same beam includes: The multiple reference signal resources are received using the same beam in different time-domain units; or... The plurality of reference signal resources are received using the same beam across M time-domain units; wherein M is less than K, and K is the number of the plurality of reference signal resources.

11. The method as described in claim 10, characterized in that, The multiple second reference signal resources received in the first time domain unit correspond to different frequency domain units; wherein, the first time domain unit belongs to the M time domain units, and the second reference signal resources belong to the multiple reference signal resources.

12. The method according to any one of claims 8-11, characterized in that, The plurality of reference signal resources include the same number of resource blocks in each reference signal resource; and / or, the plurality of reference signal resources include the same number of ports in each reference signal resource.

13. The method according to any one of claims 8-12, characterized in that, The first information is used to indicate multiple reference signal resources, specifically including: The first information is used to indicate a set of reference signal resources, which includes the plurality of reference signal resources.

14. The method according to any one of claims 8-13, characterized in that, Also includes: A fourth message is sent, which instructs the plurality of reference signal resources to be used for beam management.

15. A communication device, characterized in that, Includes modules for performing the method as described in any one of claims 1-7 or any one of claims 8-14.

16. A communication device, characterized in that, Including processor and memory; The memory is used to store computer programs or instructions; The processor is configured to execute some or all of the computer programs or instructions in the memory, and when the some or all of the computer programs or instructions are executed, to implement the method as described in any one of claims 1-7 or any one of claims 8-14.

17. A chip system, characterized in that, Includes a processor, which is coupled to a memory; The memory is used to store computer programs or instructions; The processor is configured to execute some or all of the computer programs or instructions in the memory, and when the some or all of the computer programs or instructions are executed, to implement the method as described in any one of claims 1-7 or any one of claims 8-14.

18. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed by a communication device, implement the method as described in any one of claims 1-7 or any one of claims 8-14.

19. A computer program product, characterized in that, The computer program product includes: computer instructions that, when executed on a computer, cause the method as described in any one of claims 1-7 or any one of claims 8-14 to be implemented.

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