Communication methods and related apparatuses

Abstract

This application provides a communication method and related apparatus, relating to the field of communication technology. In this method, a first communication device receives first information from a second communication device. This first information indicates information about K Channel Sounding Reference Signals (SRS) resources, where K is an integer greater than 1. The information about the K SRS resources includes indication information and amplitude information of the K SRS resources. Based on this first information, a signal is transmitted to the second communication device instead of using a fixed-direction analog beam from the first communication device. This improves the quality of the signal received by the second communication device, as well as coverage and throughput, thereby enhancing the communication quality between the first and second communication devices.

Description

Technical Field

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

[0002] Currently, in Urban Air Mobility (UAM) systems, terminal devices (such as aircraft) can provide services in applications such as passenger transportation and logistics.

[0003] In related technologies, terminal devices have multiple fixed-directional analog beams used for communication with network devices during service provision. However, the location of the terminal device may change in real time during service provision. Using fixed-directional analog beams for communication with network devices would result in poor communication quality between the terminal device and the network device.

[0004] Therefore, designing a communication method to improve the communication quality between terminal devices and network devices has become an urgent technical problem to be solved. Summary of the Invention

[0005] This application provides a communication method and related apparatus, which is beneficial to improving the communication quality between a first communication device and a second communication device.

[0006] In a first aspect, a communication method is provided, which can be applied to a first communication device, such as a terminal device, or a communication module applied to the terminal device, or a circuit or chip applied to the terminal device (such as a modem chip, also known as a baseband chip, or a system on-chip (SoC) chip containing a modem core or a system in package (SIP) chip).

[0007] The method includes: receiving first information from a second communication device, the first information being used to indicate information on K channel sounding reference signal (SRS) resources, where K is an integer greater than 1, the information on the K SRS resources including indication information and amplitude information of the K SRS resources; and transmitting a signal to the second communication device through a first analog beam associated with the first information.

[0008] In conjunction with the communication method provided in the first aspect, the first information indicates information about K SRS resources. The information about the K SRS resources includes indication information and amplitude information of the K SRS resources. This allows the first communication device to send signals to the second communication device using the first analog beam associated with the first information, instead of using the fixed-direction analog beam of the first communication device. This is beneficial for improving the quality of the signals received by the second communication device, as well as for improving coverage and throughput, thereby achieving the goal of improving the communication quality between the first and second communication devices.

[0009] For example, the first communication device is a terminal device, and the second communication device is a network device.

[0010] In some embodiments of the first aspect, the indication information for the K SRS resources includes an index of the K SRS resources.

[0011] In this embodiment, the indication information of the K SRS resources includes the indexes of the K SRS resources, which enables the first communication device to know that the K analog beams indicated by the indexes of the K SRS resources are combined into a first analog beam with a specific direction, which is used to send a signal to the second communication device, thereby improving the feasibility of the communication method provided in this application.

[0012] In some embodiments of the first aspect, the amplitude information of the K SRS resources includes: K amplitude information corresponding to the K SRS resources.

[0013] In conjunction with this implementation, the first communication device can generate a first analog beam with a specific direction based on the index of K SRS resources and the K amplitude information corresponding to the K SRS resources. This can help improve the consistency of the specific direction with the LoS path channel between the first and second communication devices, thereby improving the communication quality between the first and second communication devices.

[0014] In some embodiments of the first aspect, the index of the K SRS resources includes: an index of a preset SRS resource and an index of (K-1) SRS resources, and the amplitude information of the K SRS resources includes: amplitude information corresponding to the preset SRS resource and (K-1) amplitude information corresponding to the (K-1) SRS resources. The preset SRS resource is one of the K SRS resources, and the (K-1) SRS resources are the SRS resources other than the preset SRS resource among the K SRS resources.

[0015] In conjunction with this implementation, the first communication device can combine the K analog beams indicated by the indexes of the K SRS resources into a first analog beam with a specific direction based on the index of the preset SRS resources, the amplitude information corresponding to the preset SRS resources, and (K-1) amplitude information. This helps to improve the consistency between the specific direction and the direction of the LoS path channel between the first communication device and the second communication device, thereby improving the communication quality between the first communication device and the second communication device.

[0016] In some embodiments of the first aspect, the information of the K SRS resources further includes: K phase information corresponding to the K SRS resources.

[0017] In conjunction with this implementation, the first communication device can combine the K analog beams indicated by the indexes of the K SRS resources into a first analog beam with a specific direction based on the K amplitude information and the K phase information. This is beneficial to further improve the consistency between the specific direction and the direction of the LoS path channel between the first communication device and the second communication device, thereby improving the communication quality between the first communication device and the second communication device.

[0018] In some embodiments of the first aspect, the information of the K SRS resources further includes: phase information corresponding to the preset SRS resources, and (K-1) phase information corresponding to (K-1) SRS resources.

[0019] In conjunction with this implementation, the first communication device can combine the K analog beams indicated by the indexes of the K SRS resources into a first analog beam with a specific direction based on the indexes of the K SRS resources, the amplitude and phase information corresponding to the preset SRS resources, and the amplitude and phase information corresponding to the (K-1) SRS resources. This helps to improve the consistency between the specific direction and the direction of the LoS path channel between the first and second communication devices, thereby improving the communication quality between the first and second communication devices.

[0020] In some embodiments of the first aspect, the method further includes: sending capability information to the second communication device, the capability information indicating a first quantity, the first quantity indicating a number of analog beams available for merging, the analog beams available for merging including analog beams used when transmitting K SRSs from the aforementioned K SRS resources, the first quantity being greater than or equal to K.

[0021] In this embodiment, the first communication device sends capability information to the second communication device. The first quantity indicated by the capability information is greater than or equal to K, so that the second communication device can indicate information on a few (i.e., K) SRS resources to the first communication device according to the first quantity. Furthermore, the first communication device can send signals according to the first information and the few analog beams corresponding to the few SRS resources, instead of using the fixed-direction analog beams of the first communication device to send signals. This is beneficial to improving the quality of the signals received by the second communication device, as well as improving coverage and throughput, thereby achieving the goal of improving the communication quality between the first and second communication devices.

[0022] Moreover, the total number of a few analog beams is less than or equal to the first number, which can improve the communication quality between the first and second communication devices without increasing the number of analog beams of the first communication device, and also reduce the size and weight of the antenna of the first communication device, reduce the energy consumption of the first communication device, and extend the range of the first communication device.

[0023] In some embodiments of the first aspect, the first information is at least one of the following: downlink control information (DCI), radio resource control (RRC) signaling, or media access control element (MAC CE) signaling.

[0024] In this embodiment, the first information can be at least one of DCI, RRC signaling, or MAC CE signaling. That is, DCI, RRC signaling, or MAC CE signaling can all be used to indicate information about K SRS resources, which increases the optional way for the second communication device to indicate information about K SRS resources to the first communication device.

[0025] In some embodiments of the first aspect, the method further includes: receiving configuration information of at least the K SRS resources from the second communication device; and transmitting at least K SRS on the at least K SRS resources according to the configuration information, wherein the at least K SRS are used by the second communication device to determine information of the K SRS resources.

[0026] In some embodiments of the first aspect, receiving multiple SRS resources from the second communication device includes: receiving configuration information of at least one SRS resource set from the second communication device, the at least one SRS resource set including at least the K SRS resources.

[0027] Secondly, a communication method is provided that can be applied to a second communication device, such as a network device, or a communication module applied to a network device, or a circuit or chip applied to the second communication device (such as a modem chip, also known as a baseband chip, or a SoC chip or SIP chip containing a modem core).

[0028] The method includes: sending first information to a first communication device, the first information indicating information of K SRS resources, where K is an integer greater than 1, the information of the K SRS resources including indication information of the K SRS resources and amplitude information of the K SRS resources; and receiving a signal from the first communication device, the signal being transmitted by the first communication device through a first analog beam associated with the first information.

[0029] In some embodiments of the second aspect, the indication information of the K SRS resources includes: an index of the K SRS resources.

[0030] In some embodiments of the second aspect, the amplitude information of the K SRS resources includes: K amplitude information corresponding to the K SRS resources.

[0031] In some embodiments of the second aspect, the index of the K SRS resources includes: an index of a preset SRS resource and an index of (K-1) SRS resources, and the amplitude information of the K SRS resources includes: amplitude information corresponding to the preset SRS resource and (K-1) amplitude information corresponding to the (K-1) SRS resources; wherein, the preset SRS resource is one of the K SRS resources and the (K-1) SRS resources are the SRS resources other than the preset SRS resource among the K SRS resources.

[0032] In some embodiments of the second aspect, the information of the K SRS resources further includes: K phase information corresponding to the K SRS resources.

[0033] In some embodiments of the second aspect, the information of the K SRS resources further includes: phase information corresponding to the preset SRS resources, and (K-1) phase information corresponding to the (K-1) SRS resources.

[0034] In some embodiments of the second aspect, the method further includes: receiving capability information from the first communication device, the capability information indicating a first quantity, the first quantity indicating a number of analog beams available for merging, the analog beams including analog beams used when transmitting SRS on the SRS resource, the first quantity being greater than or equal to K.

[0035] In some embodiments of the second aspect, the first information is carried by at least one of the following signaling methods: DCI, RRC signaling, or MAC CE signaling.

[0036] In some embodiments of the second aspect, the method further includes: sending configuration information of at least the K SRS resources to the first communication device; receiving at least K SRSs from the first communication device, the at least K SRSs being sent on the at least K SRS resources according to the configuration information; and determining information of the K SRS resources based on the at least K SRSs.

[0037] In some embodiments of the second aspect, sending configuration information of at least the K SRS resources to the first communication device includes: sending configuration information of at least one SRS resource set to the first communication device, the at least one SRS resource set including at least the K SRS resources.

[0038] Thirdly, a first communication device is provided. In one design, the first communication device may include units corresponding to the methods / operations / steps / actions described in the first aspect or any embodiment of the first aspect. These units may be hardware circuits, software, or a combination of hardware circuits and software. In one design, the first communication device includes a transceiver unit.

[0039] Optionally, the transceiver unit is configured to receive first information from the second communication device and to send a signal to the second communication device based on the first information, wherein the first information is used to indicate information on K channel sounding reference signal (SRS) resources, where K is an integer greater than 1, and the information on the K SRS resources includes indication information of the K SRS resources and amplitude information of the K SRS resources.

[0040] Optionally, the transceiver unit is further configured to send capability information to the second communication device, the capability information indicating a first quantity, the first quantity indicating the number of analog beams available for merging, the analog beams including the analog beams used when transmitting SRS on the SRS resource, the first quantity being greater than or equal to K.

[0041] Optionally, the transceiver unit is further configured to receive configuration information of at least the K SRS resources from the second communication device; and to transmit at least K SRS on the at least K SRS resources according to the configuration information, wherein the at least K SRS are used by the second communication device to determine the information of the K SRS resources.

[0042] Optionally, the transceiver unit is further configured to receive configuration information of at least one SRS resource set from the second communication device, the at least one SRS resource set including at least the K SRS resources.

[0043] Fourthly, a second communication device is provided. In one design, the second communication device may include units corresponding to the methods / operations / steps / actions described in the second aspect or any embodiment of the second aspect. These units may be hardware circuits, software, or a combination of hardware circuits and software. In one design, the second communication device includes a transceiver unit and / or a processing unit.

[0044] Optionally, the transceiver unit is configured to send first information to the first communication device, the first information being used to indicate information of K SRS resources, where K is an integer greater than 1, and the information of the K SRS resources includes indication information of the K SRS resources and amplitude information of the K SRS resources; and to receive a signal from the first communication device, the signal being sent according to the first information.

[0045] Optionally, the transceiver unit is further configured to receive capability information from the first communication device, the capability information indicating a first quantity, the first quantity indicating the number of analog beams available for merging, the analog beams including the analog beams used when transmitting SRS on the SRS resource, the first quantity being greater than or equal to K.

[0046] Optionally, the transceiver unit is further configured to send configuration information of at least the K SRS resources to the first communication device; and receive at least K SRSs from the first communication device, wherein the at least K SRSs are transmitted on the at least K SRS resources according to the configuration information. The processing unit is configured to determine information about the K SRS resources based on the at least K SRSs.

[0047] Optionally, the transceiver unit is specifically configured to send configuration information of at least one SRS resource set to the first communication device, the at least one SRS resource set including at least the K SRS resources.

[0048] Fifthly, a communication device is provided, including a processor. The processor can implement the methods described in the first and second aspects and any one of the possible embodiments of the first and second aspects. Optionally, the communication device further includes a memory, and the processor is coupled to the memory and can be used to execute instructions in the memory to implement the methods described in the first and second aspects and any one of the possible embodiments of the first and second aspects. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In the embodiments of this application, the communication interface can be a transceiver, a pin, a circuit, a bus, a unit, or other type of communication interface, and is not limited thereto.

[0049] In one embodiment, the communication device is a communication equipment (e.g., a terminal device or a network device). When the communication device is a communication equipment, the communication interface can be a transceiver, or an input / output interface.

[0050] In another embodiment, the communication device is a chip configured in a communication device. When the communication device is a chip configured in a communication device, the communication interface can be an input / output interface.

[0051] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0052] A sixth aspect provides a processor, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals and / or information through the input circuit and to transmit signals and / or information through the output circuit, causing the processor to perform the methods described in the first to second aspects and any possible implementation thereof.

[0053] In specific implementation, the processor can be one or more chips, the input circuit can be input pins, the output circuit can be output pins, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to and transmitted by a transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0054] A seventh aspect provides a computer program product comprising: a computer program (also referred to as code or instructions) that, when executed, causes a computer to perform the methods described in the first to second aspects and any of the possible implementations of the first to second aspects.

[0055] Eighthly, a computer-readable storage medium is provided that stores a computer program (also referred to as code or instructions) that, when executed on a computer, causes the computer to perform the methods described in the first to second aspects and any of the possible implementations of the first to second aspects.

[0056] A ninth aspect provides a chip system applied to a communication device, the chip system including one or more processors for invoking computer instructions to cause the communication device to perform the methods described in the first to second aspects and any possible implementation of the first to second aspects.

[0057] In a tenth aspect, a communication system is provided, comprising a communication device for implementing the method of the first aspect and any possible embodiment of the first aspect, and a communication device for implementing the method of the second aspect and any possible embodiment of the second aspect.

[0058] It should be understood that the beneficial effects of the features corresponding to the first aspect in the second to tenth aspects can be referred to the relevant description of the first aspect above, and will not be repeated here. Attached Figure Description

[0059] Figure 1 This is a schematic diagram of the architecture of a communication system applicable to the communication method provided in this application;

[0060] Figure 2 This is a schematic diagram of a simulated beam of a terminal device provided in an embodiment of this application;

[0061] Figure 3 This is another schematic diagram of the simulated beam of the terminal device provided in the embodiments of this application;

[0062] Figure 4 This is a schematic flowchart of a communication method provided in an embodiment of this application;

[0063] Figure 5 This is another illustrative flowchart of the communication method provided in the embodiments of this application;

[0064] Figure 6 This is a schematic block diagram of a communication device provided in an embodiment of this application;

[0065] Figure 7 This is another schematic block diagram of the communication device provided in the embodiments of this application;

[0066] Figure 8 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application;

[0067] Figure 9 This is a schematic diagram of the network device provided in the embodiments of this application. Detailed Implementation

[0068] To better understand the methods provided in the embodiments of this application, the relevant technologies and concepts involved in this application are briefly described below.

[0069] 1. Channel Sounding Reference Signal (SRS)

[0070] SRS is a pilot signal sent by a terminal device to a network device. SRS is used by the network device to evaluate the uplink communication quality or for uplink beam management.

[0071] 2. SRS resource

[0072] SRS resources are resources used to send SRS messages, and can be at least one of the following: frequency domain resources, time domain resources, code domain resources, etc. Terminal devices send SRS messages on SRS resources. Typically, network devices can indicate SRS resources to terminal devices through SRS resource configuration information.

[0073] 3. SRS resource set

[0074] An SRS resource set is a collection of SRS resources, and an SRS resource set may include one or more SRS resources. The configuration information of an SRS resource set can be used to indicate that SRS resource set.

[0075] 4. Simulated beam

[0076] A simulated beam refers to the shape formed by electromagnetic waves emitted by terminal or network equipment. One simulated beam corresponds to one SRS resource; it should be understood that one simulated beam also corresponds to one SRS.

[0077] The following explains other terms used in this application.

[0078] In this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information for the purpose of instructing A, it can be understood that the instruction information carries A, directly instructs A, or indirectly instructs A.

[0079] In this application, the " / " in the text description can indicate that the related objects are in an "or" relationship. For example, A / B can mean A or B. "And / or" can be used to describe three relationships between related objects. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. A and B can be singular or plural. In formula descriptions, " / " can represent a division operation. For example, 1 / 2 can mean 1 divided by 2, and it should be understood that 1 / 2 can represent one-half.

[0080] In this application, "at least one" means one or more, and "more than one" means two or more, such as three, four, or more. Similar expressions (such as at least one, at least one, etc.) are used in the same way. "At least one of the following," "one or more of the following," or similar expressions refer to any combination of these items, which may include only a single item or a combination of multiple items. For example, at least one of a, b, or c can mean: a, or b, or c; a and b; or a and c; or b and c; or a, b, and c. Where a, b, and c can be single or multiple.

[0081] In this application, for the convenience of describing the technical solutions of the embodiments of this application, the terms "first" and "second" may be used to distinguish them. The terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0082] In this application, the words "exemplary," "example," or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary," "example," or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. The use of the words "exemplary," "example," or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0083] In this application, "sending information / data" only indicates the direction of information / data transmission, including direct transmission via the device's communication interface (such as an air interface, or simply air interface). "Sending" can also be understood as the "output" of a unit interface. "Sending" can include indirect transmission by the processing unit through the communication interface, meaning that after the processing unit outputs information / data through the unit interface, it is transmitted to the device's communication interface and then sent out. "Receiving information / data" only indicates the direction of information / data transmission, including direct reception via the communication interface. "Receiving" can also be understood as the "input" of a unit interface. "Receiving information / data" can include indirect reception by the processing unit through the communication interface, meaning that after the communication interface receives information / data, it is transmitted to the processing unit's unit interface and then input to the processing unit. "Sending information / data to… (such as a terminal)" can be understood as the destination of the information being the terminal. It can include sending information / data directly or indirectly to the terminal. "Receiving information / data from… (such as a terminal)" can be understood as the source of the information being the terminal, and can include receiving information / data directly or indirectly from the terminal. Information / data may undergo necessary processing, such as format changes, between the source and destination, but the destination can understand the valid information / data from the source. Similar statements in this application can be understood in a similar way, and will not be repeated here.

[0084] Figure 1 This is a schematic diagram of the architecture of a communication system applicable to the communication method provided in this application. Figure 1 A possible, non-limiting system architecture diagram is shown. For example... Figure 1 As shown, the communication system includes: a radio access network (RAN) 10 and at least one terminal device (such as...). Figure 1 120a-120b in the series are collectively referred to as 120.

[0085] The communication system can be a cellular system related to the 3rd Generation Partnership Project (3GPP). Cellular systems include, for example, 4th generation (4G) mobile communication systems, 5th generation (5G) mobile communication systems, or future-oriented evolution systems. The communication system can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), a wireless fidelity (WiFi) system, and a UAM system. The communication system can also be a convergence of two or more of the above systems.

[0086] RAN 10 includes at least one network device (such as...) Figure 1 RAN 10, including 110a and 110b (collectively referred to as RAN 10), may also include other network devices, such as wireless relay devices and / or wireless backhaul devices. Figure 1 (not shown in the image). Terminal device 120 is connected to network device 110 wirelessly.

[0087] Network device 110, sometimes also referred to as RAN node, access network device, RAN entity, or access node, is part of the communication system and is used to provide communication services to terminal device 120. Multiple network devices 110 can be of the same type or different types. Both network device 110 and terminal device 120 are sometimes referred to as communication apparatus.

[0088] In one possible scenario, network device 110 can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), or a base station in a future-oriented evolution system. Network device 110 can also be an access node in a WiFi system or a radio controller in a CRAN. Network devices can be macro base stations, micro base stations, indoor stations, relay nodes, or donor nodes. Optionally, network devices can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, the access network device in vehicle-to-everything (V2X) technology can be a roadside unit (RSU).

[0089] In another possible scenario, multiple network devices collaborate to assist terminals 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), etc. 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 access network equipment within the RAN or core network equipment within the core network; no restrictions are placed here.

[0090] 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 O-RAN 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 by software units, hardware units, or a combination of software and hardware units.

[0091] Terminal equipment 120 can also be referred to as a terminal, user equipment (UE), mobile station, mobile terminal, or UAM terminal, etc. Terminal equipment can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, and smart cities. Terminal equipment can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, aircraft, ships, robots, robotic arms, smart home devices, etc. Aircraft include, for example, drones, helicopters, and electric vertical take-off and landing (eVTOL) aircraft.

[0092] In the embodiments of this application, the terminal device and the network device can be hardware devices, or software functions running on dedicated hardware, or software functions running on general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., a cloud platform), or entities that include dedicated or general-purpose hardware devices and software functions. This application does not limit the specific form of the terminal device and the network device.

[0093] In one possible scenario, when the terminal device is an aircraft, its flight altitude can reach between 150 and 1000 meters, or even higher. Therefore, there are virtually no buildings or other obstacles obstructing the connection between the terminal device and the ground-based network equipment. Consequently, information between the terminal device and the ground-based network equipment is transmitted via line-of-sight (LOS) path channels, resulting in minimal path loss. This can lead to severe interference between different cells or different terminal devices. For example... Figure 1 As shown, terminal device 120a is connected to network device 110a. When network device 110a receives a signal from terminal device 120a, it may also receive a signal sent by terminal device 120b on the same time-frequency resources.

[0094] To reduce interference between different cells or different terminal devices, terminal devices can use analog beamforming (ABF) to transmit or receive data signals and / or pilot signals to improve coverage and reduce interference. For example... Figure 1 As shown, when network device 110a receives a signal from terminal device 120a, it may also receive a signal from terminal device 120b on the same time-frequency resources. However, since the analog beam of terminal device 120b is pointed to network device 110b, the interference power received by network device 110a from terminal device 120a is relatively small. Therefore, the purpose of reducing interference between different cells or different terminal devices can be achieved.

[0095] In one possible scenario, due to limitations in the size, weight, and cost of the terminal device's antenna, the number of analog beams on the terminal device is limited, and their direction is fixed. When the terminal device uses analog beams with fixed directions to communicate with network devices, the terminal device's position may change in real time. The analog beams of the terminal device may struggle to accurately match the actual channel between the terminal device and the network device, leading to poor communication quality. This can manifest as lower antenna gain for the terminal device, lower signal energy received by the network device from the terminal device, poor network coverage of the terminal device, and lower throughput.

[0096] The following combination Figure 2 An example is provided for a terminal with four analog beams.

[0097] Figure 2 This is a schematic diagram of a simulated beam of a terminal device provided in an embodiment of this application. For example... Figure 2 As shown, for example, terminal device 120 has four analog beams (such as...) Figure 2In the analog beams 210a to 210d (collectively referred to as 210), the directions of the four analog beams are fixed. Typically, a terminal device can use one of these analog beams for communication at any given time. When terminal device 120 uses analog beam 210a to transmit a signal, the LOS path channel between terminal device 120 and network device 110 is located between the main lobe of analog beam 210a and the main lobe of analog beam 210b of terminal device 120. That is, the direction of the LOS path channel is inconsistent with that of analog beam 210a, resulting in poor signal quality and consequently poor communication quality between terminal device 120 and network device 110.

[0098] In one possible scenario, in order to improve the communication quality between the terminal device and the network device, the number of analog beams of the terminal device 120 is increased from 4 to 6 to avoid the LOS path channel between the terminal device 120 and the network device 110 being located between the main lobes of different analog beams of the terminal device 120.

[0099] The following combination Figure 3 An example is provided for the case where the terminal device 120 has 6 analog beams.

[0100] Figure 3 This is another schematic diagram of the simulated beam of the terminal device provided in the embodiments of this application. For example... Figure 3 As shown, for example, terminal device 120 has 6 analog beams (such as...) Figure 3 In the diagram, 310a to 310f (collectively referred to as 310) are six analog beams with fixed directions. When terminal device 120 transmits signals using analog beam 310a, the LOS path channel between terminal device 120 and network device 110 is located within analog beam 310a of terminal device 120. This ensures that the direction of the LOS path channel is basically consistent with that of analog beam 310a, which improves the quality of the signal transmitted between terminal device 120 and network device 110, thereby improving the communication quality between terminal device 120 and network device 110.

[0101] Increasing the number of analog beams in terminal device 120 from 4 to 6 avoids the LOS path channel between terminal device 120 and network device 110 being located between the main lobes of different analog beams in terminal device 120. However, the increased number of analog beams leads to increased complexity of the terminal device and increases the size, weight, and cost of the antenna. Especially in UAM systems, where the terminal device is in flight, increasing the size and weight of the antenna will increase the energy consumption of the terminal device and shorten its range.

[0102] To improve the communication quality between terminal devices and network devices, this application provides a communication method in which the network device indicates indication information and amplitude information of one or more SRS resources to the terminal device, and the terminal device sends a signal to the network device based on the indication information and amplitude information of the one or more SRS resources. This method can improve the signal quality without increasing the complexity, size and weight of the terminal device, thereby improving the communication quality between the terminal device and the network device.

[0103] The following combination Figure 4 and Figure 5 The communication method provided in the embodiments of this application will be described in detail.

[0104] Figure 4 This is a schematic flowchart of a communication method provided in an embodiment of this application. The steps of method 400 can be interactively executed by a first communication device (e.g., a UAM terminal or a unit or module applicable to a UAM terminal (e.g., a processor, chip, chip system, circuit, etc.)) and a second communication device (e.g., a network device or a unit or module applicable to a network device (e.g., a processor, chip, chip system, circuit, etc.)). The following description uses the first and second communication devices as examples. Furthermore, the processing performed by a single executing entity can also be divided into multiple entities, which can be logically and / or physically separated. For example, the processing performed by the second communication device can be divided into at least one of CU, DU, RU, etc.

[0105] Method 400 includes steps S401 and S402, which will be described in detail below.

[0106] S401, the second communication device sends first information to the first communication device. Correspondingly, the first communication device receives the first information from the second communication device.

[0107] The first information is used to indicate information about the K SRS resources. In one example, the first information includes information about the K SRS resources.

[0108] The information for the K SRS resources includes the indication information and the amplitude information of the K SRS resources, where K is an integer greater than 1.

[0109] In one possible implementation, the first information is carried in at least one of the following signaling: Downlink Control Information (DCI), Radio Resource Control (RRC) signaling, or Media Access Control Control Element (MAC CE) signaling.

[0110] The K SRS resources can be SRS resources in one SRS resource set or SRS resources in multiple SRS resource sets. When the K SRS resources are SRS resources in multiple SRS resource sets, for example, the multiple SRS resource sets include a first SRS resource set and a second SRS resource set, some of the K SRS resources can be located in the first SRS resource set, and the remaining K SRS resources can be located in the second SRS resource set.

[0111] S402, the first communication device sends a signal to the second communication device via a first analog beam associated with the first information. Correspondingly, the second communication device receives the signal from the first communication device.

[0112] The first analog beam associated with the first information refers to the analog beam determined by the first communication device through the first information.

[0113] The information in the first information indicates the information of K SRS resources. It can be understood that the first analog beam is the analog beam determined by the first communication device based on the information of the K SRS resources. In other words, the first communication device can determine the first analog beam based on the information of the K SRS resources and send signals to the second communication device through the first analog beam.

[0114] Specifically, the method for determining the first analog beam using information from K SRS resources will be described in Examples E1 to E4 below, and will not be repeated here.

[0115] The first analog beam has a specific direction. Optionally, this specific direction may point to the second communication device, or it may be understood that the specific direction is consistent with the direction of the LOS path channel between the first and second communication devices, or it may be understood that the LOS path channel is located within the range of the main lobe of the first analog beam, or it may be understood that the specific direction is consistent with the direction of the strongest received signal of the second communication device.

[0116] In some possible cases, the direction of the LOS path channel and the direction of the strongest received signal can be the same.

[0117] In one possible implementation, the first communication device generates a first analog beam having that specific direction based on the first information.

[0118] In conjunction with this implementation, a first analog beam with a specific direction is generated based on the first information. This specific direction can point to the second communication device, which can improve the consistency between the direction of the LOS path channel and the specific direction. This is beneficial to improving the quality of the signal received by the second communication device, as well as improving the coverage and throughput of the second communication device. This can achieve the goal of improving the communication quality between the first and second communication devices.

[0119] The signals transmitted from the first communication device to the second communication device include at least one of the following: a data signal, a control signal, a data signal and a pilot signal associated with the data signal, and a control signal and a pilot signal associated with the control signal. The data signal may be a Physical Uplink Shared Channel (PUSCH), the control signal may be a Physical Uplink Control Channel (PUCCH), and the pilot signal may be an SRS or a Demodulation Reference Signal (DMRS).

[0120] In the method described in method 400 above, the second communication device indicates information of K SRS resources to the first communication device. The information of K SRS resources includes indication information of K SRS resources and amplitude information of K SRS resources. The first communication device sends a signal to the second communication device through a first analog beam associated with the first information, instead of using the analog beam of the first communication device in a fixed direction to send the signal. This is beneficial to improving the quality of the signal received by the second communication device, as well as improving coverage and throughput. This results in higher communication quality between the first and second communication devices. It does not require increasing the number of analog beams of the first communication device, which helps to reduce the complexity, size and weight of the antenna of the first communication device, thereby reducing the energy consumption of the first communication device and extending the driving range of the first communication device.

[0121] The following examples (Example A1 and Example A2) illustrate the indication information for K SRS resources.

[0122] Example A1: The indication information for the K SRS resources includes the indices of the K SRS resources. In this application, the index can also be referred to as a sequence number, identifier, indicator (ID), etc. In this application, the index, sequence number, identifier, and indicator can be used interchangeably. Optionally, the K SRS resources are K SRS resources out of the N SRS resources configured by the second communication device for the first communication device, where N is an integer greater than or equal to K. The indices of the K SRS resources can be used to indicate the aforementioned K analog beams.

[0123] In this embodiment of the application, when the second communication device configures N SRS resources for the first communication device, the first communication device can select K SRS resources from the N SRS resources and use the index of these K SRS resources to indicate K analog beams to obtain a first analog beam with the specific direction. This is beneficial to improve the consistency between the specific direction and the direction with the greatest received signal strength of the second communication device, thereby improving the communication quality between the first communication device and the second communication device.

[0124] In this application, when there is a LOS path channel between the first communication device and the second communication device, the direction with the strongest received signal strength can be the direction of the LOS path channel. In this case, the method provided in this application can improve the consistency between the specific direction and the direction of the LOS path channel, thereby improving the communication quality between the first communication device and the second communication device.

[0125] In this application, when there is no LOS path channel between the first communication device and the second communication device, the consistency between the specific direction and the direction with the largest received signal strength of the aforementioned K SRS can be improved, thereby improving the communication quality between the first communication device and the second communication device.

[0126] For example, the indexing method of the K SRS resources in Example A1 is described in conjunction with Method 1A or Method 1B.

[0127] Method 1A uses a bitmap to indicate the indices of K SRS resources out of N SRS resources.

[0128] For example, a bitmap of "1001" indicates N=4 and K=2, with the indices of the four SRS resources being 0, 1, 2, and 3 respectively. In "1001", the first bit "1" indicates index 3, and the last bit "1" indicates index 0. Therefore, the indices of two of the four SRS resources are 3 and 0 respectively. Alternatively, in "1001", the first bit "1" indicates index 0, and the last bit "1" indicates index 3. Therefore, the indices of two of the four SRS resources are 0 and 3 respectively.

[0129] Method 1B, using A bit indicates the index of K SRS resources out of N SRS resources. This indicates the rounding up operation.

[0130] For example, N=8, K=2, This means using 6 bits to indicate the index of 2 out of 8 SRS resources. For example, these 6 bits are "101110". The first 3 bits "101" of "101110" correspond to the decimal number 5, which is used to indicate that the index of one of the 2 SRS resources is 5. The last 3 bits "110" of "101110" correspond to the decimal number 6, which is used to indicate that the index of the other SRS resource is 6.

[0131] For example, N=16, K=2, This means using 8 bits to indicate the index of two SRS resources out of 16 SRS resources. For example, these 8 bits are "10101110". The first 4 bits "1010" of "10101110" correspond to the decimal number 10, which is used to indicate that the index of one of the two SRS resources is 10. The last 4 bits "1110" of "10101110" correspond to the decimal number 14, which is used to indicate that the index of the other SRS resource out of the two SRS resources is 14.

[0132] In this application, by introducing N SRS resources, in some cases, using method 1B to indicate the indexes of K SRS resources out of N SRS resources can save bit overhead compared to using method 1A to indicate the indexes of K SRS resources out of N SRS resources. For example, when N=8 and K=4, if method 1A is used, 8 bits are needed to indicate the indexes of 4 SRS resources out of 8 SRS resources, while if method 1B is used, only 6 bits are needed to indicate the indexes of 4 SRS resources out of 8 SRS resources.

[0133] Example A2: The indication information for K SRS resources includes the indexes of K SRS resources, and the K SRS resources include a preset SRS resource and (K-1) SRS resources. It should be understood that the indexes of the K SRS resources include the indexes of the preset SRS resource and the indexes of (K-1) SRS resources.

[0134] In this embodiment, by introducing the index of a preset SRS resource into the indication information of the K SRS resources, the second communication device can use a differential method to indicate the (K-1) amplitude information and (K-1) phase information corresponding to the (K-1) SRS resources other than the preset SRS resources among the K SRS resources. For an explanation of the (K-1) amplitude information and (K-1) phase information, please refer to the following text.

[0135] For example, the indexing of the K SRS resources in Example 21 is indicated by combining method 2A or method 2B.

[0136] Method 2A, using The bits indicate the indices of K SRS resources. In The bit indicates the index of the preset SRS resource, where, The bit is located in the first indicator field of the first information. The bit is located in the second indication field of the first information; the first indication field and the second indication field are different.

[0137] For example, N=4, K=2, Specifically, 4 bits indicate the index of two SRS resources, 2 bits of which indicate the index of one of the two SRS resources, and 2 bits of which indicate the index of a preset SRS resource among the two SRS resources. For example, when the 4 bits are "1011", the first 2 bits "10" of "1011" are located in the first indication field of the first information, and the last 2 bits "11" of "1011" are located in the second indication field of the first information. The decimal number corresponding to the first 2 bits "10" is 1, which is used to indicate that the index of one of the two SRS resources is 1; the decimal number corresponding to the last 2 bits "11" is 3, which is used to indicate that the index of the preset SRS resource among the two SRS resources is 3.

[0138] For example, N=8, K=2, Specifically, 6 bits indicate the index of two SRS resources, 3 bits of which indicate the index of one of the two SRS resources, and 3 bits of which indicate the index of a preset SRS resource among the two SRS resources. For example, when the 6 bits are "101100", the first 3 bits "101" of "101100" are located in the first indication field of the first information, and the last 3 bits "100" of "101100" are located in the second indication field of the first information. The decimal number corresponding to the first 3 bits "101" is 5, which is used to indicate that the index of one of the two SRS resources is 5; the decimal number corresponding to the last 3 bits "100" is 4, which is used to indicate that the index of the preset SRS resource among the two SRS resources is 4.

[0139] Method 2B, using Indicates the indexes of K SRS resources. In The bit indicates the index of the preset SRS resource, where, Bit and The bits are located in the same indicator field in the first information. Optionally, Bits can be The first Bit, can also be The end of the middle Bit.

[0140] For example, N=8, K=3, That is, the index of the three SRS resources is indicated by 9 bits, of which 6 bits indicate the index of two of the three SRS resources, and 3 bits indicate the index of the preset SRS resource among the three SRS resources.

[0141] if Bit is First bit In the case of the 9 bits being "101100110", the first 3 bits "101" of "101100110" correspond to the decimal number 5, which is used to indicate that the index of the preset SRS resource among the 3 SRS resources is 5; the middle 3 bits "100" of "101100110" correspond to the decimal number 4, which is used to indicate that the index of one of the 3 SRS resources is 4; and the last 3 bits "110" of "101100110" correspond to the decimal number 6, which is used to indicate that the index of the other SRS resource among the 3 SRS resources is 6.

[0142] if Bits are located Following the first bit, when the 9 bits are "101100110", the first 3 bits "101" of "101100110" correspond to the decimal number 5, which is used to indicate that the index of one of the three SRS resources is 5; the middle 3 bits "100" of "101100110" correspond to the decimal number 4, which is used to indicate that the index of another of the three SRS resources is 4; the last 3 bits "110" of "101100110" correspond to the decimal number 6, which is used to indicate that the index of the preset SRS resource among the three SRS resources is 6.

[0143] For example, N=4, K=3, That is, the indexes of K SRS resources and the index of the preset SRS resource are indicated by 6 bits, 4 bits of which indicate the indexes of 2 SRS resources and 2 bits of which indicate the index of the preset SRS resource.

[0144] if Bit is First bit In the case of the 6 bits "100111", the first two bits "10" of "100110" correspond to the decimal number 2, which is used to indicate that the index of the preset SRS resource among the 3 SRS resources is 2; the middle two bits "100" of "01" correspond to the decimal number 1, which is used to indicate that the index of one of the 3 SRS resources is 1; the last two bits "11" of "100110" correspond to the decimal number 4, which is used to indicate that the index of the other SRS resource among the 3 SRS resources is 4.

[0145] if Bits are located Following the first bit, when the 6 bits are "100111", the first 2 bits "10" of "100111" correspond to the decimal number 2, which is used to indicate that the index of one of the 3 SRS resources is 2; the middle 2 bits "01" of "100111" correspond to the decimal number 1, which is used to indicate that the index of another of the 3 SRS resources is 1; the last 2 bits "11" of "100111" correspond to the decimal number 4, which is used to indicate that the index of the preset SRS resource among the 3 SRS resources is 4.

[0146] The following examples, B1 and B2, illustrate the amplitude information of the K SRS resources.

[0147] Example B1: The amplitude information of K SRS resources includes: K amplitude information corresponding to K SRS resources.

[0148] For each of the K amplitude information, the amplitude information can be used to indicate the ratio of the new amplitude value corresponding to the SRS resource to the original amplitude value corresponding to the SRS resource.

[0149] For example, the new amplitude value can be understood as the new amplitude value of the analog beam corresponding to the SRS resource. The new amplitude value is the amplitude value of the analog beam that the second communication device expects the first communication device to send, and the original amplitude value is the amplitude value of the analog beam used by the first communication device when sending SRS on the SRS resource.

[0150] For example, the new amplitude value can also be understood as the new amplitude value of the SRS corresponding to the SRS resource. The new amplitude value is the amplitude value of the SRS that the second communication device expects the first communication device to send. The original amplitude value is the original amplitude value of the SRS corresponding to the SRS resource. The original amplitude value of the SRS is the amplitude value of the SRS received by the second communication device on the SRS resource or the amplitude value of the SRS sent by the first communication device on the SRS resource.

[0151] Optionally, the K amplitude information can also be understood as the K amplitude information corresponding to the K analog beams, or the K amplitude information corresponding to the K SRS, wherein the K analog beams correspond to the K SRS resources and / or the K SRS.

[0152] Each of the K amplitude information is indicated by P bits, where P is a positive integer.

[0153] Optionally, the amplitude information indicated by the P bits can be arranged monotonically from large to small or from small to large.

[0154] For example, when the amplitude information indicated by P bits is monotonically arranged from smallest to largest, if P=2, 2 bits, for example, "00", are used to indicate an amplitude information of 1, 2 bits, for example, "01", are used to indicate an amplitude information of 1 / 2, 2 bits, for example, "10", are used to indicate an amplitude information of 1 / 4, and 2 bits, for example, "11", are used to indicate an amplitude information of 1 / 8.

[0155] For example, when the amplitude information indicated by P bits is monotonically arranged from smallest to largest, if P = 3, 3 bits, for example, "000", are used to indicate an amplitude information of 1; 3 bits, for example, "001", are used to indicate an amplitude information of 1 / 2; 3 bits, for example, "010", are used to indicate an amplitude information of 1 / 4; 3 bits, for example, "011", are used to indicate an amplitude information of 1 / 8; 3 bits, for example, "100", are used to indicate an amplitude information of 1 / 16; 3 bits, for example, "101", are used to indicate an amplitude information of 1 / 32; 3 bits, for example, "110", are used to indicate an amplitude information of 1 / 64; and 3 bits, for example, "111", are used to indicate an amplitude information of 1 / 128.

[0156] When each of the K amplitude information is indicated using P bits, the K amplitude information is indicated using (K×P) bits.

[0157] For example, when the amplitude information indicated by P bits is monotonically arranged from smallest to largest, when K=3 and P=2, K×P=6, and 6 bits are used to indicate K amplitude information, such as "010010". The first two bits "01" in "010010" are used to indicate that the first amplitude information in the K amplitude information is 1 / 2, "00" is used to indicate that the second amplitude information in the K amplitude information is 1, and "10" indicates that the third amplitude information in the K amplitude information is 1 / 4.

[0158] Based on Example B2, the amplitude value of the first analog beam used to transmit signals to the second communication device is determined according to the K new amplitude values ​​corresponding to the K SRS resources.

[0159] Example B2: The amplitude information of the K SRS resources includes: amplitude information corresponding to the preset SRS resource and (K-1) amplitude information corresponding to the (K-1) SRS resources. The (K-1) SRS resources are the SRS resources other than the preset SRS resources among the K SRS resources.

[0160] The amplitude information corresponding to the preset SRS resource can be used to indicate the ratio of the new amplitude value corresponding to the preset SRS resource to the original amplitude value corresponding to the preset SRS resource. For each amplitude information in (K-1) amplitude information, this amplitude information is used to indicate the ratio of the new amplitude value corresponding to the SRS resource to the new amplitude value corresponding to the preset SRS resource; or this amplitude information is used to indicate the ratio of the amplitude ratio corresponding to the SRS resource to the amplitude ratio corresponding to the preset SRS resource. Here, the amplitude ratio corresponding to the SRS resource is the ratio of the new amplitude value corresponding to the SRS resource to the original amplitude value corresponding to the SRS resource, and the amplitude ratio corresponding to the preset SRS resource is the ratio of the new amplitude value corresponding to the preset SRS resource to the original amplitude value corresponding to the preset SRS resource. The amplitude ratio corresponding to the preset SRS resource can also be referred to as the amplitude information corresponding to the preset SRS resource.

[0161] Optionally, the (K-1) amplitude information corresponding to the (K-1) SRS resources can also be understood as the (K-1) amplitude information corresponding to the (K-1) analog beams, or the (K-1) amplitude information corresponding to the (K-1) SRSs. Wherein, the (K-1) analog beams correspond to the (K-1) SRS resources and / or the (K-1) SRSs.

[0162] For example, the amplitude information corresponding to the preset SRS resource can be 1, or 1 / 2, etc.

[0163] Each of the (K-1) amplitude information is indicated by P bits, where P is a positive integer. Optionally, the amplitude information indicated by the P bits can be monotonically arranged from largest to smallest or smallest to largest. For example, P = 2, 2 bits such as "00" are used to indicate an amplitude information of 1, 2 bits such as "01" are used to indicate an amplitude information of 1 / 2, 2 bits such as "10" are used to indicate an amplitude information of 1 / 4, and 2 bits such as "11" are used to indicate an amplitude information of 1 / 8.

[0164] (K-1) amplitude information are indicated using ((K-1)×P) bits. For example, when K=3 and P=2, (K-1)×P=4, and (K-1) amplitude information is indicated by 4 bits, such as "0100". The first two bits "01" in "0100" are used to indicate that the first amplitude information in (K-1) amplitude information is 1 / 2, and "00" is used to indicate that the second amplitude information in (K-1) amplitude information is 1.

[0165] Based on Example B2, the amplitude value of the first analog beam used to transmit signals to the second communication device is determined according to the K new amplitude values ​​corresponding to the K SRS resources.

[0166] In one possible implementation, the information of the K SRS resources also includes the phase information of the K SRS resources.

[0167] The phase information of K SRS resources is explained below using two examples (Example C1 and Example C2).

[0168] Example C1: The phase information of K SRS resources includes: K phase information corresponding to K SRS resources.

[0169] For each of the K phase information, the phase information is used to indicate the difference between the new phase value corresponding to the SRS resource and the original phase value corresponding to the SRS resource.

[0170] For example, the new phase value is the new phase value of the analog beam corresponding to the SRS resource, the new phase value is the phase value of the analog beam that the second communication device expects the first communication device to send, and the original phase value is the phase value of the analog beam used by the first communication device when sending SRS on the SRS resource.

[0171] For example, the new phase value is the new phase value of the SRS corresponding to the SRS resource, the new phase value is the phase value of the SRS that the second communication device expects the first communication device to send, and the original phase value is the original phase value of the SRS corresponding to the SRS resource. The original phase value of the SRS is the phase value of the SRS received by the second communication device on the SRS resource or the phase value of the SRS sent by the first communication device on the SRS resource.

[0172] The K phase information corresponding to K SRS resources can also be understood as the K phase information corresponding to K analog beams, or the K phase information corresponding to K SRSs, where K analog beams correspond to K SRS resources and / or K SRSs.

[0173] Each of the K phase information can be indicated using Q bits, where Q is a positive integer. The phase information indicated by Q bits is monotonically arranged from largest to smallest or smallest to largest. For example, Q = 2, 2 bits such as "00" are used to indicate phase information 0, 2 bits such as "01" are used to indicate phase information pi / 2, 2 bits such as "10" are used to indicate phase information pi, and 2 bits such as "11" are used to indicate amplitude information 3×pi / 2, where pi represents pi.

[0174] K phase information is indicated using (K×Q) bits. For example, when K=3 and Q=2, K×Q=6, and K phase information is indicated by 6 bits, such as "010010". The first two bits "01" in "010010" are used to indicate that the first phase information in the K phase information is pi / 2, "00" is used to indicate that the second phase information in the K phase information is 0, and "10" indicates that the third phase information in the K amplitude information is pi.

[0175] Based on Example C1, the phase value of the first analog beam used to transmit signals to the second communication device is determined according to the K new phase values ​​corresponding to the K SRS resources.

[0176] Example C2: The phase information of K SRS resources includes (K-1) phase information corresponding to (K-1) SRS resources.

[0177] For each of the (K-1) phase information pieces, the phase information is used to indicate the difference between the new phase value corresponding to the SRS resource and a preset phase value; or, the phase information is used to indicate the difference between the phase difference corresponding to the SRS resource and a preset phase value, wherein the phase difference corresponding to the SRS resource is the difference between the new phase value corresponding to the SRS resource and the original phase value corresponding to the SRS resource, and the preset phase value can be the difference between the new phase value corresponding to the preset SRS resource and the original phase value corresponding to the preset SRS resource. For example, the preset phase value can be 0, or it can be any other value.

[0178] For example, the new phase value corresponding to the SRS resource is the new phase value of the analog beam corresponding to the SRS resource, and this new phase value is the phase value of the analog beam that the second communication device expects the first communication device to transmit. For example, the new phase value corresponding to the SRS resource is the new phase value of the SRS corresponding to the SRS resource, and this new phase value is the phase value of the SRS that the second communication device expects the first communication device to transmit.

[0179] Optionally, the (K-1) phase information can also be understood as the (K-1) phase information corresponding to the (K-1) analog beams, or the (K-1) phase information corresponding to the (K-1) SRS. Here, the (K-1) analog beams correspond to the (K-1) SRS resources and / or the (K-1) SRS. The (K-1) SRS resources are the SRS resources other than the preset SRS resources among the K SRS resources.

[0180] Each of the (K-1) phase information can be indicated using Q bits, where Q is a positive integer.

[0181] Optionally, the phase information indicated by the Q bits is monotonically arranged from largest to smallest or smallest to largest.

[0182] For example, when the phase information indicated by the Q bits is monotonically arranged from smallest to largest, if Q = 2, 2 bits, for example, "00", are used to indicate that the phase information is 0, 2 bits, for example, "01", are used to indicate that the phase information is pi / 2, 2 bits, for example, "10", are used to indicate that the phase information is pi, and 2 bits, for example, "11", are used to indicate that the amplitude information is 3×pi / 2, where pi represents pi.

[0183] For example, when the phase information indicated by the Q bits is monotonically arranged from smallest to largest, if Q = 3, 3 bits, for example, "000", are used to indicate that the phase information is 0, 3 bits, for example, "001", are used to indicate that the phase information is pi / 4, 3 bits, for example, "010", are used to indicate that the phase information is pi / 2, 3 bits, for example, "011", are used to indicate that the phase information is 3×pi / 4, 3 bits, for example, "100", are used to indicate that the phase information is pi, 3 bits, for example, "101", are used to indicate that the phase information is 5×pi / 4, 3 bits, for example, "110", are used to indicate that the amplitude information is 3×pi / 2, and 3 bits, for example, "111", are used to indicate that the amplitude information is 7×pi / 4.

[0184] When each of the (K-1) phase information can be indicated using Q bits, the (K-1) phase information is indicated using ((K-1)×Q) bits.

[0185] For example, when the phase information indicated by Q bits is monotonically arranged from smallest to largest, when K=3 and Q=2, (K-1)×Q=4, (K-1) phase information is indicated by 4 bits. These 4 bits are, for example, "0100". The first 2 bits "01" in "0100" are used to indicate that the first phase information in (K-1) phase information is pi / 2, and the last 2 bits "00" in "0100" are used to indicate that the second phase information in (K-1) phase information is 0.

[0186] For example, when the phase information indicated by the Q bits is monotonically arranged from smallest to largest, when K=3 and Q=3, (K-1)×Q=6, (K-1) phase information is indicated by 6 bits. This 6 bits is, for example, "101001". The first 3 bits "101" in "101001" are used to indicate that the first phase information in (K-1) phase information is pi / 2, and the last 3 bits in "101001" are used to indicate that the second phase information in (K-1) phase information is pi / 4.

[0187] Based on Example C2, the phase value of the first analog beam used to transmit a signal to the second communication device is determined according to the K new phase values ​​corresponding to the K SRS resources, wherein the K new phase values ​​include (K-1) new phase values ​​corresponding to (K-1) SRS resources and new phase values ​​corresponding to preset SRS resources.

[0188] Based on example C2, the phase information of the K SRS resources can also include the phase information corresponding to the preset SRS resources. The phase information corresponding to the preset SRS resources is used to indicate the preset phase value, or in other words, to indicate the difference between the new phase value corresponding to the preset SRS resources and the original phase value corresponding to the preset SRS resources.

[0189] Figure 5 This is another illustrative flowchart of the communication method provided in this application embodiment. The steps of method 500 can be interactively executed by a first communication device (e.g., a UAM terminal or a unit or module applicable to a UAM terminal device (e.g., a processor, chip, chip system, circuit, etc.)) and a second communication device (e.g., a network device or a unit or module applicable to a network device (e.g., a processor, chip, chip system, circuit, etc.)). The following description uses the first and second communication devices as examples. Furthermore, the processing performed by a single executing entity can also be divided into multiple entities, which can be logically and / or physically separated. For example, the processing performed by the second communication device can be divided into at least one of CU, DU, RU, etc.

[0190] Method 500 includes steps S501 to S505, and each step will be described in detail below.

[0191] S501, the first communication device sends capability information to the second communication device, the capability information indicating a first quantity. Correspondingly, the second communication device receives the capability information. The first quantity indicates the number of analog beams available for merging, the first quantity being an integer greater than 1, and the analog beams available for merging are the analog beams used when transmitting SRS resources.

[0192] For example, capability information may be carried in at least one of the following messages: Radio Resource Control Reconfiguration Complete (RRCReconfiguration Complete) message, Radio Resource Control Setup Complete (RRC Setup Complete) message, or Radio Resource Control Resume Complete (RRC Resume Complete) message. Furthermore, capability information may also be carried in other messages defined by the standard or new messages, which are not limited in this application.

[0193] For example, the first number can be the total number of analog beams in multiple fixed directions of the first communication device, such as 4. The analog beams that can be combined can be some or all of the analog beams in the multiple fixed directions of the first communication device. For example, some analog beams include... Figure 2 The simulated beams 210a and 210b shown are all simulated beams as follows: Figure 2 The simulated beams 210a to 210d are shown in the diagram.

[0194] In one possible implementation, method 500 may not include S501.

[0195] S502, the second communication device sends configuration information of N SRS resources to the first communication device according to the first quantity indicated by the capability information, where N is an integer greater than or equal to the first quantity.

[0196] Accordingly, the first communication device receives configuration information for N SRS resources. The N SRS resources include K SRS resources as described in S504 below. It should be understood that the N SRS resources are at least K SRS resources. The first quantity indicated by the capability information is greater than or equal to K. N is an integer greater than or equal to K, and K is an integer greater than 1.

[0197] The configuration information for each SRS resource includes one or more of the following: the indicator (ID) of the SRS resource, the number of ports used when transmitting SRS on the SRS resource, the comb index, the location of the SRS resource in the time domain, the location of the SRS resource in the frequency domain, the sequence of the SRS resource, or the frequency hopping of the SRS resource, etc.

[0198] In one possible implementation, the second communication device sends configuration information of an SRS resource set to the first communication device; correspondingly, the first communication device sends configuration information of an SRS resource set. The configuration information of an SRS resource set includes configuration information of N SRS resources, and the SRS resource set includes N SRS resources.

[0199] Optionally, the configuration information of the SRS resource set can also be referred to as "SRS-ResourceSet" signaling.

[0200] Optionally, N is less than or equal to the maximum number of SRS resources in the SRS resource set, or N is less than or equal to the maximum number of SRS resources in the SRS resource set used for beam management. The maximum number of SRS resources in the SRS resource set can be indicated by the field "maxNrofSRS-ResourcesPerSet" in the configuration information of the SRS resource set. The maximum number of SRS resources in the SRS resource set used for beam management can be indicated by the field "maxNumberSRS-ResourcePerSet-BM" in the configuration information of the SRS resource set. When the value of the field "usage" in the configuration information of the SRS resource set is "beamManagement", it indicates that the SRS resource set is used for beam management.

[0201] In one possible implementation, the second communication device sends configuration information for multiple SRS resource sets to the first communication device; correspondingly, the first communication device receives the configuration information for the multiple SRS resource sets. The configuration information for the multiple SRS resource sets includes configuration information for N SRS resources. It should be understood that the multiple SRS resource sets include N SRS resources. For example, the multiple SRS resource sets may include a first SRS resource set and a second SRS resource set, where some of the N SRS resources may be located in the first SRS resource set, and the remaining N SRS resources may be located in the second SRS resource set.

[0202] Optionally, the N SRS resources can be SRS resources within different SRS resource sets across multiple SRS resource sets, or they can be SRS resources within the same SRS resource set across multiple SRS resource sets. Optionally, the multiple SRS resource sets containing the N SRS resources are used for beam management. When the "usage" field in the configuration information of the multiple SRS resource sets is set to "beamManagement", it indicates that the multiple SRS resource sets are used for beam management.

[0203] Optionally, N is less than or equal to the sum of the values ​​indicated by the field "maxNrofSRS-ResourcesPerSet" in the configuration information for multiple SRS resource sets, or N is less than or equal to the sum of the values ​​indicated by the field "maxNumberSRS-ResourcePerSet-BM" in the configuration information for the multiple SRS resource sets.

[0204] In this application, when the number of SRS resources in an SRS resource set is small (for example, the number of SRS resources in the SRS resource set is less than a first number), multiple SRS resource sets can be introduced. By introducing multiple SRS resource sets, the second communication device can configure a sufficient number of SRS resources for the first communication device, which helps to improve the first communication device's ability to select the last K SRS resources with corresponding signal quality from a sufficient number of SRS resources, and helps to improve the consistency between the direction of the first analog beam and the direction of the LoS path channel.

[0205] Optionally, the configuration information of one or more SRS resource sets can be sent from the second communication device to the first communication device via RRC signaling. For example, the RRC signaling can be at least one of the following: a Radio Resource Control Reconfiguration message, a Radio Resource Control Setup message, or a Radio Resource Control Resume message.

[0206] S503, the first communication device transmits N SRS on the N SRS resources according to the configuration information of the N SRS resources. Correspondingly, the second communication device receives the N SRS.

[0207] The first communication device transmits N SRS signals through N analog beams on N SRS resources. Specifically, the first communication device transmits one SRS signal on one SRS resource using one analog beam. This means that the N SRS resources correspond one-to-one with the N SRS signals, and the N analog beams also correspond one-to-one with the N SRS signals.

[0208] S504, the second communication device determines information about K SRS resources based on the received N SRS and the first quantity indicated by the capability information, where K is an integer less than or equal to the first quantity.

[0209] The following explanation of S504 is based on examples D1 to D4.

[0210] Example D1: The information for the K SRS resources includes: the indexes of the K SRS resources and the K amplitude information corresponding to the K SRS resources.

[0211] The second communication device uses the following method 3A to determine the indexes of K SRS resources.

[0212] In method 3A, the second communication device determines the signal quality of the N received SRSs; and based on a first quantity, determines the top K SRSs with the highest received signal quality among the N SRSs, where K is an integer less than or equal to the first quantity; and determines the index of the SRS resource of the top K SRSs as the index of the K SRS resources. Optionally, the signal quality is the Reference Signal Received Power (RSRP), Reference Signal Receiving Quality (RSRQ), or Signal to Noise Ratio (SNR).

[0213] The second communication device uses the following method 3B to determine the K amplitude information corresponding to the K SRS resources.

[0214] In method 3B, the second communication device determines the signal quality of the N received SRSs; and based on the first quantity, determines the K SRSs with the highest received signal quality among the N SRSs; based on the received K SRSs and the K original signals corresponding to the K SRSs, estimates the K channels corresponding to the K SRS resources, and obtains the K channel estimation parameters corresponding to the K SRS resources, wherein the K original signals are the SRSs transmitted by the first communication device on the K SRS resources; and based on the K channel estimation parameters, determines the K combining coefficients corresponding to the K SRS resources. The K combining coefficients are used to determine the K new phase values ​​and K new amplitude values ​​corresponding to the K SRS resources. A first combining coefficient vector, including the K combining coefficients, is quantized to obtain a second combining coefficient vector, which includes the K new phase values ​​and K new amplitude values ​​corresponding to the K SRS resources. For each of the K SRS resources, the ratio of the new amplitude value corresponding to that SRS resource in the second combining coefficient vector to the original amplitude value corresponding to that SRS resource is determined as the amplitude information corresponding to that SRS resource. For an explanation of the new amplitude value corresponding to each of the K SRS resources and the original amplitude value corresponding to each SRS resource, please refer to Example B1 above; it will not be repeated here.

[0215] Optionally, the first combining coefficient vector, the K channel estimation parameters corresponding to the K SRS resources, and the K combining coefficients corresponding to the K SRS resources satisfy the following formula:

[0216] Where, ||α||2=1

[0217] Where α represents the first merging coefficient vector, H k Let α represent the channel estimation parameters corresponding to the k-th SRS resource out of K SRS resources. k This represents the merging coefficient corresponding to the k-th SRS resource.

[0218] Example D2: The information of the K SRS resources includes: the index of the K SRS resources, the amplitude information corresponding to the preset SRS resources, and the amplitude information corresponding to (K-1) SRS resources. Among them, the index of the K SRS resources includes the index of the preset SRS resources, and the (K-1) SRS resources are the SRS resources other than the preset SRS resources among the K SRS resources.

[0219] The second communication device can use method 3A to determine the indexes of K SRS resources, which will not be elaborated here.

[0220] Optionally, the preset SRS resource can be the SRS resource corresponding to the largest amplitude value among the K new amplitude values ​​corresponding to K SRS resources (or the N new amplitude values ​​corresponding to N SRS resources), or the SRS resource corresponding to the smallest amplitude value, or any amplitude value. Here, there is a one-to-one correspondence between the K SRS resources and the K new amplitude values, and a one-to-one correspondence between the N SRS resources and the N new amplitude values.

[0221] The second communication device can use mode 3C to determine the index of the preset SRS resource.

[0222] In method 3C, the second communication device determines the index of the SRS resource corresponding to the largest amplitude value among the K new amplitude values ​​(or N new amplitude values ​​corresponding to N SRS resources) of the K SRS resources as the index of the preset SRS resource; or, determines the index of the SRS resource corresponding to the smallest amplitude value among the K new amplitude values ​​(or N new amplitude values ​​corresponding to N SRS resources) of the K SRS resources as the index of the preset SRS resource; or, determines the index of any one of the K SRS resources (or N SRS resources) as the index of the preset SRS resource.

[0223] The second communication device can use method 3D to determine (K-1) amplitude information corresponding to (K-1) SRS resources.

[0224] Method 3D, based on Method 3B, after obtaining K new amplitude values ​​corresponding to K SRS resources, for each SRS resource among (K-1) SRS resources, the ratio of the new amplitude value corresponding to the SRS resource to the new amplitude value corresponding to the preset SRS resource is determined as the amplitude information corresponding to that SRS resource. Alternatively, based on Method 3B, after obtaining K new amplitude values ​​corresponding to K SRS resources, the ratio of the new amplitude value corresponding to the preset SRS resource to the original amplitude value corresponding to the preset SRS resource is determined as the amplitude ratio corresponding to the preset SRS resource; for each SRS resource among (K-1) SRS resources, the ratio of the new amplitude value corresponding to the SRS resource to the original amplitude value corresponding to the SRS resource is determined as the amplitude ratio corresponding to the SRS resource; and the ratio of the amplitude ratio corresponding to the SRS resource to the amplitude ratio corresponding to the preset SRS resource is determined as the amplitude information corresponding to that SRS resource.

[0225] For an explanation of the new amplitude value corresponding to each SRS resource in (K-1) SRS resources, as well as the original amplitude value corresponding to each SRS resource, and for an explanation of the new amplitude value corresponding to the preset SRS resource and the original amplitude value corresponding to the preset SRS resource, please refer to Example B2 above, which will not be repeated here.

[0226] The second communication device can use mode 3E to determine the amplitude information corresponding to the preset SRS resources.

[0227] In mode 3E, based on mode 3C, the second communication device determines the amplitude information corresponding to the preset SRS resource as the ratio of the new amplitude value corresponding to the preset SRS resource to the original amplitude value corresponding to the preset SRS resource.

[0228] Example D3: The information for the K SRS resources includes: the index of the K SRS resources, the K amplitude information corresponding to the K SRS resources, and the K phase information corresponding to the K SRS resources.

[0229] The second communication device can use method 3A to determine the indexes of K SRS resources, and the second communication device can use method 3B to determine K amplitude information, which will not be elaborated here.

[0230] The second communication device uses the following method 3F to determine the K phase information corresponding to the K SRS resources.

[0231] Method 3F, based on Method 3B above, after obtaining K new phase values ​​corresponding to K SRS resources, for each SRS resource among the K SRS resources, the difference between the new phase value corresponding to the SRS resource and the original phase value corresponding to the SRS resource is determined as the phase information corresponding to the SRS resource.

[0232] For an explanation of the new phase value corresponding to each of the K SRS resources, as well as the original phase value corresponding to each SRS resource, please refer to the aforementioned Example C1, which will not be repeated here.

[0233] Example D4: The information of the K SRS resources includes: the index of the K SRS resources, the amplitude information corresponding to the preset SRS resources, (K-1) amplitude information corresponding to (K-1) SRS resources, and (K-1) phase information corresponding to (K-1) SRS resources. The index of the K SRS resources includes the index of the preset SRS resources.

[0234] The second communication device can use mode 3A to determine the index of K SRS resources, mode 3C to determine the index of preset SRS resources, mode 3D to determine (K-1) amplitude information, and mode 3E to determine the amplitude information corresponding to the preset SRS resources. These details will not be elaborated here.

[0235] The second communication device can use mode 3G to determine (K-1) phase information corresponding to (K-1) SRS resources.

[0236] Method 3G, based on Method 3B, after obtaining K new phase values ​​corresponding to K SRS resources, determines the preset phase value by comparing the new phase value corresponding to the preset SRS resource with the original phase value corresponding to the preset SRS resource; for each SRS resource among (K-1) SRS resources, the difference between the new phase value corresponding to that SRS resource and the preset phase value is determined as the phase information corresponding to that SRS resource. Alternatively, after obtaining K new phase values ​​corresponding to K SRS resources, the difference between the new phase value corresponding to the preset SRS resource and the original phase value corresponding to the preset SRS resource is determined as the preset phase value (i.e., the phase difference corresponding to the preset SRS resource); for each SRS resource among (K-1) SRS resources, the difference between the new phase value corresponding to that SRS resource and the original phase value corresponding to that SRS resource is determined as the phase difference corresponding to that SRS resource, and the difference between the phase difference corresponding to that SRS resource and the preset phase value is determined as the phase information corresponding to that SRS resource.

[0237] For an explanation of the new phase value corresponding to each SRS resource in (K-1) SRS resources, as well as the original phase value corresponding to each SRS resource, please refer to the aforementioned Example C2, which will not be repeated here.

[0238] Comparing Example D3 and Example D4, since the information of the K SRS resources in Example D4 does not need to include the phase information corresponding to the preset SRS resources, the overhead of transmitting the information of the K SRS resources can be reduced.

[0239] Furthermore, the amplitude information corresponding to the preset SRS resource is used to indicate the ratio of the new amplitude value corresponding to the preset SRS resource to the original amplitude value corresponding to the preset SRS resource. For each of the (K-1) amplitude information pieces, this amplitude information is used to indicate the ratio of the new amplitude value corresponding to the SRS resource to the new amplitude value corresponding to the preset SRS resource. Therefore, through Example D4, when the new amplitude value corresponding to the preset SRS resource is relatively small, the new amplitude values ​​corresponding to the (K-1) SRS resources can be reduced based on the new amplitude value corresponding to the preset SRS resource, and the new amplitude values ​​corresponding to the (K-1) SRS resources can be indicated more accurately using the (K-1) amplitude information pieces.

[0240] S505 includes S401 and S402 mentioned above.

[0241] Building upon Examples D1 to D4, the following, in conjunction with Examples E1 to E4, illustrates how the first communication device generates the first analog beam.

[0242] In Example E1, based on Example D1, the first communication device performs the following steps 101 to 103 to generate a first analog beam.

[0243] Step 101: Based on the indices of the K SRS resources, determine the K original amplitude values ​​corresponding to the K SRS resources from the N original amplitude values ​​corresponding to the N SRS resources.

[0244] Step 102: For each SRS resource among the K SRS resources, determine the original amplitude value corresponding to the SRS resource from the N original amplitude values ​​corresponding to the N SRS resources according to the index of the SRS resource, and determine the new amplitude value corresponding to the SRS resource according to the product of the ratio indicated by the amplitude information corresponding to the SRS resource and the original amplitude value corresponding to the SRS resource.

[0245] Step 103: Generate a first analog beam based on the K new amplitude values ​​corresponding to the K SRS resources; or, merge the K analog beams indicated by the indexes of the K SRS resources based on the K new amplitude values ​​corresponding to the K SRS resources to obtain the first analog beam.

[0246] In one implementation, in step 103, the amplitude value of the first analog beam is determined based on the K new amplitude values, and the first analog beam is generated according to the amplitude value of the first analog beam.

[0247] In Example E2, based on Example D2, the first communication device performs steps 201 to 204 to generate a first analog beam, or the first communication device performs steps 301 to 304 to generate a first analog beam.

[0248] If the amplitude information in (K-1) amplitude information is used to indicate the ratio of the new amplitude value corresponding to the SRS resource to the new amplitude value corresponding to the preset SRS resource, then the first communication device performs the following steps 201 to 204 to generate the first analog beam.

[0249] Step 201: Based on the index of the preset SRS resource, determine the original amplitude value corresponding to the preset SRS resource from the N original amplitude values ​​corresponding to the N SRS resources.

[0250] Step 202: The product of the ratio of the amplitude information indication corresponding to the preset SRS resource and the original amplitude value is determined as the new amplitude value corresponding to the preset SRS resource.

[0251] Step 203: For each SRS resource among (K-1) SRS resources, determine the original amplitude value corresponding to the SRS resource from the N original amplitude values ​​corresponding to the N SRS resources according to the index of the SRS resource, and determine the new amplitude value corresponding to the SRS resource by multiplying the new amplitude value corresponding to the preset SRS resource and the ratio indicated by the amplitude information corresponding to the SRS resource.

[0252] Step 204: Generate a first analog beam based on the new amplitude value corresponding to the preset SRS resource and the (K-1) new amplitude values ​​corresponding to the (K-1) SRS resources; or, merge the K analog beams indicated by the indexes of the K SRS resources based on the new amplitude value corresponding to the preset SRS resource and the (K-1) new amplitude values ​​corresponding to the (K-1) SRS resources to obtain the first analog beam.

[0253] In one implementation, in step 204, the amplitude value of the first analog beam is determined based on the new amplitude value corresponding to the preset SRS resource and the (K-1) new amplitude values, and the first analog beam is generated according to the amplitude value of the first analog beam.

[0254] If the amplitude information in (K-1) amplitude information is used to indicate the ratio of the amplitude ratio corresponding to the SRS resource to the amplitude ratio corresponding to the preset SRS resource, then the first communication device performs the following steps 301 to 304 to generate the first analog beam.

[0255] Step 301: Based on the index of the preset SRS resource, determine the original amplitude value corresponding to the preset SRS resource from the N original amplitude values ​​corresponding to the N SRS resources.

[0256] Step 302: Multiply the ratio of the amplitude information indication corresponding to the preset SRS resource with the original amplitude value corresponding to the preset SRS resource to determine the new amplitude value corresponding to the preset SRS resource.

[0257] Step 303: For each SRS resource among (K-1) SRS resources, the product of the ratio indicated by the amplitude information corresponding to the preset SRS resource and the amplitude information corresponding to the SRS resource is determined as the amplitude ratio corresponding to the SRS resource. According to the index of the SRS resource, the original amplitude value corresponding to the SRS resource is determined from the N original amplitude values ​​corresponding to the N SRS resources. The product of the amplitude ratio corresponding to the SRS resource and the original amplitude value corresponding to the SRS resource is determined as the new amplitude value corresponding to the SRS resource.

[0258] Step 304: Generate a first analog beam based on the new amplitude value corresponding to the preset SRS resource and the (K-1) new amplitude values ​​corresponding to the (K-1) SRS resources; or, merge the K analog beams indicated by the indexes of the K SRS resources based on the new amplitude value corresponding to the preset SRS resource and the (K-1) new amplitude values ​​corresponding to the (K-1) SRS resources to obtain the first analog beam.

[0259] In this application, the execution method of step 304 is similar to that of step 204, and will not be described again here.

[0260] In Example E3, based on Example D3, the first communication device performs the following steps 401 to 404 to generate a first analog beam.

[0261] Step 401: Based on the indices of the K SRS resources, determine the K original amplitude values ​​corresponding to the K SRS resources from the N original amplitude values ​​corresponding to the N SRS resources, and determine the K original phase values ​​corresponding to the K SRS resources from the N original phase values ​​corresponding to the N SRS resources.

[0262] Step 402: For each SRS resource among the K SRS resources, based on the index of the SRS resource, determine the original amplitude value corresponding to the SRS resource from the N original amplitude values ​​corresponding to the N SRS resources, and multiply the ratio indicated by the amplitude information corresponding to the SRS resource and the original amplitude value corresponding to the SRS resource to determine the new amplitude value corresponding to the SRS resource.

[0263] Step 403: For each SRS resource among the K SRS resources, based on the index of the SRS resource, determine the original phase value corresponding to the SRS resource from the N original phase values ​​corresponding to the N SRS resources. The sum of the difference indicated by the phase information corresponding to the SRS resource and the original phase value corresponding to the SRS resource is determined as the new phase value corresponding to the SRS resource.

[0264] Step 404: Generate a first analog beam based on the K new amplitude values ​​and K new phase values ​​corresponding to the K SRS resources; or, merge the K analog beams indicated by the indexes of the K SRS resources based on the K new amplitude values ​​and K new phase values ​​corresponding to the K SRS resources to obtain the first analog beam.

[0265] In one implementation, in step 404, the amplitude value of the first analog beam is determined based on the K new amplitude values ​​corresponding to the K SRS resources; the phase value of the first analog beam is determined based on the K new phase values ​​corresponding to the K SRS resources; and the first analog beam is generated according to the amplitude value and phase value of the first analog beam.

[0266] In Example E4, based on Example D4, the first communication device performs the following steps 501 to 504 to generate a first analog beam, or the first communication device performs the following steps 601 to 605 to generate a first analog beam.

[0267] If the amplitude information in (K-1) amplitude information is used to indicate the ratio of the new amplitude value corresponding to the SRS resource to the new amplitude value corresponding to the preset SRS resource, and the phase information in (K-1) phase information is used to indicate the difference between the new phase value corresponding to the SRS resource and the preset phase value, then the first communication device performs the following steps 501 to 504 to generate the first analog beam.

[0268] Step 501: Based on the index of the preset SRS resource, determine the original amplitude value corresponding to the preset SRS resource from the N original amplitude values ​​corresponding to the N SRS resources, and determine the original phase value corresponding to the preset SRS resource from the N original phase values ​​corresponding to the N SRS resources.

[0269] Step 502: The product of the ratio of the amplitude information indication corresponding to the preset SRS resource and the original amplitude value corresponding to the preset SRS resource is determined as the new amplitude value corresponding to the preset SRS resource. The sum of the preset phase value and the original phase value corresponding to the preset SRS resource is determined as the new phase value corresponding to the preset SRS resource.

[0270] Step 503: For each SRS resource among (K-1) SRS resources, the product of the new amplitude value corresponding to the preset SRS resource and the ratio of the amplitude information indication corresponding to the SRS resource is determined as the new amplitude value corresponding to the SRS resource. The sum of the difference of the phase information indication corresponding to the SRS resource and the preset phase value is determined as the new phase value corresponding to the SRS resource.

[0271] Step 504: Generate a first analog beam based on the new amplitude and phase values ​​corresponding to the preset SRS resources, and the (K-1) new amplitude and phase values ​​corresponding to the (K-1) SRS resources; or, merge the analog beams indicated by the index of the preset SRS resources and the (K-1) analog beams indicated by the index of the (K-1) SRS resources based on the new amplitude and phase values ​​corresponding to the preset SRS resources, and the (K-1) new amplitude and phase values ​​corresponding to the (K-1) SRS resources to obtain the first analog beam.

[0272] In one embodiment, in step 504, the amplitude value of the first analog beam is determined according to the new amplitude value corresponding to the preset SRS resource and the (K-1) new amplitude values; the phase value of the first analog beam is determined according to the new phase value corresponding to the preset SRS resource and the (K-1) new phase values; and the first analog beam is generated according to the amplitude value and phase value of the first analog beam.

[0273] If the amplitude information in (K-1) amplitude information is used to indicate the ratio of the amplitude ratio corresponding to the SRS resource to the amplitude ratio corresponding to the preset SRS resource (i.e., the amplitude information corresponding to the preset SRS resource), and the phase information in (K-1) phase information is used to indicate the difference between the phase difference corresponding to the SRS resource and the preset phase value, then the first communication device performs the following steps 601 to 605 to generate the first analog beam.

[0274] Step 601: Based on the index of the preset SRS resource, determine the original amplitude value corresponding to the preset SRS resource from the N original amplitude values ​​corresponding to the N SRS resources, and determine the original phase value corresponding to the preset SRS resource from the N original phase values ​​corresponding to the N SRS resources.

[0275] Step 602: Multiply the ratio of the amplitude information indication corresponding to the preset SRS resource by the original amplitude value corresponding to the preset SRS resource to determine the new amplitude value corresponding to the preset SRS resource. Then, sum the preset phase value and the original phase value corresponding to the preset SRS resource to determine the new phase value corresponding to the preset SRS resource.

[0276] Step 603: For each SRS resource among (K-1) SRS resources, the product of the ratio of the amplitude information indication corresponding to the SRS resource and the ratio of the amplitude information indication corresponding to the preset SRS resource is determined as the amplitude ratio corresponding to the SRS resource; according to the index of the SRS resource, the original amplitude value corresponding to the SRS resource is determined from the N original amplitude values ​​corresponding to the N SRS resources; the product of the amplitude ratio corresponding to the SRS resource and the original amplitude value corresponding to the SRS resource is determined as the new amplitude value corresponding to the SRS resource.

[0277] Step 604: For each SRS resource among (K-1) SRS resources, the sum of the difference indicated by the phase information corresponding to the SRS resource and the preset phase value is determined as the phase difference corresponding to the SRS resource; according to the index of the SRS resource, the original phase value corresponding to the SRS resource is determined from the N original phase values ​​corresponding to the N SRS resources; the sum of the phase difference corresponding to the SRS resource and the original phase value corresponding to the SRS resource is determined as the new phase value corresponding to the SRS resource.

[0278] Step 605: Generate a first analog beam based on the new amplitude and phase values ​​corresponding to the preset SRS resources, and the (K-1) new amplitude and phase values ​​corresponding to the (K-1) SRS resources; or, merge the analog beams indicated by the index of the preset SRS resources and the (K-1) analog beams indicated by the index of the (K-1) SRS resources based on the new amplitude and phase values ​​corresponding to the preset SRS resources, and the (K-1) new amplitude and phase values ​​corresponding to the (K-1) SRS resources to obtain the first analog beam.

[0279] In this application, the execution method of step 605 is similar to that of step 504, and will not be described again here.

[0280] The methods provided in the embodiments of this application have been described in detail above with reference to several accompanying drawings. The apparatus provided in the embodiments of this application will now be described with reference to the accompanying drawings.

[0281] Figures 6 to 9 Schematic block diagrams of possible apparatuses provided for embodiments of this application.

[0282] Figure 6 This is a schematic block diagram of a communication device provided in an embodiment of this application. Figure 6 As shown, the communication device 600 includes a transceiver unit 610 and a processing unit 620. The transceiver unit 610 can also be referred to as a communication interface or a communication unit. The transceiver unit 610 may include a transmitting unit and a receiving unit.

[0283] One possible design is that the communication device 600 is used to achieve the above. Figure 4 and Figure 5 The method embodiment shown illustrates the function of the first communication device.

[0284] Optionally, the receiving unit in the transceiver unit 610 is used to receive first information from the second communication device. The transmitting unit in the transceiver unit 610 is used to transmit a signal to the second communication device according to the first information. The first information is used to indicate information about K Channel Sounding Reference Signals (SRS) resources, where K is an integer greater than 1, and the information about the K SRS resources includes indication information for the K SRS resources and amplitude information for the K SRS resources.

[0285] Optionally, the transmitting unit in the transceiver unit 610 is further configured to transmit capability information to the second communication device. The capability information is used to indicate a first quantity, which indicates the number of analog beams that can be combined. The analog beams that can be combined include analog beams used when transmitting K SRSs on K SRS resources, and the first quantity is greater than or equal to K.

[0286] Optionally, the receiving unit in the transceiver unit 610 is further configured to receive configuration information of at least K SRS resources from the second communication device. The transmitting unit in the transceiver unit 610 is further configured to transmit at least K SRS on the at least K SRS resources according to the configuration information, wherein the at least K SRS are used by the second communication device to determine the information of the K SRS resources.

[0287] Optionally, the receiving unit in the transceiver unit 610 is further configured to receive configuration information of at least one SRS resource set from the second communication device, wherein the at least one SRS resource set includes at least K SRS resources.

[0288] Another possible design is that the communication device 600 is used to achieve the above. Figure 4 and Figure 5 The function of the second communication device in the method embodiment shown.

[0289] Optionally, the transmitting unit in the transceiver unit 610 is configured to transmit first information to the first communication device. The first information indicates information about K SRS resources, where K is an integer greater than 1. The information about the K SRS resources includes indication information and amplitude information of the K SRS resources. The receiving unit in the transceiver unit 610 is configured to receive a signal from the first communication device, the signal being transmitted according to the first information.

[0290] Optionally, the receiving unit in the transceiver unit 610 is further configured to receive capability information from the first communication device, the capability information being used to indicate a first quantity, the first quantity being used to indicate the number of analog beams that can be combined, the analog beams including the analog beams used when transmitting SRS resources, the first quantity being greater than or equal to K.

[0291] Optionally, the transmitting unit in the transceiver unit 610 is further configured to transmit configuration information of at least K SRS resources to the first communication device; and receive at least K SRS resources from the first communication device, wherein the at least K SRS resources are transmitted on the at least K SRS resources according to the configuration information. The processing unit 620 is configured to determine the information of the K SRS resources based on the at least K SRS resources.

[0292] Optionally, the transmitting unit in the transceiver unit 610 is further configured to transmit configuration information of at least one SRS resource set to the first communication device, wherein the at least one SRS resource set includes at least K SRS resources.

[0293] It is understood that the division of units in the above-described device is merely a logical functional division. Each function can correspond to a functional unit, or two or more functions can be integrated into one functional unit. In actual implementation, all or some units can be integrated into a single physical entity, or they can be distributed across different physical entities. Furthermore, the aforementioned functional units can be implemented in hardware, software, or a combination of both. Whether a function is executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0294] Figure 7 This is another schematic block diagram of the communication device provided in the embodiments of this application. For example... Figure 7 As shown, the communication device 700 includes one or more processors 710. This processor 710, sometimes referred to as a processing unit, controls the communication device 700. The processor 710 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit. The baseband processor can process communication protocols and communication data, while the central processing unit can control the device (e.g., a vehicle or a chip), execute software programs, and process data from the software programs.

[0295] Optionally, in one design, the processor 710 may include a computer program (also referred to as code or instructions) that can be executed on the processor 710, causing the communication device 700 to perform the methods executed by the first or second communication device in the above method embodiments. The communication device 700 may also be a first communication device or a second communication device. In yet another possible design, the communication device 700 includes circuitry (…). Figure 7 (Not shown), this circuit is used to implement the function of the first or second communication device in the above method embodiments.

[0296] For example, processor 710 can be used to execute a computer program in memory to achieve Figure 4 and Figure 5 The steps performed by the first or second communication device in the illustrated method embodiment.

[0297] Optionally, the communication device 700 may include one or more memories 720 storing computer programs (sometimes referred to as code or instructions) that can be run on the processor 710, causing the communication device 700 to perform the methods performed by the first or second communication device in the above embodiments.

[0298] Optionally, the processor 710 and / or memory 720 may also store data. The processor and memory may be configured separately or integrated together.

[0299] Optionally, the communication device 700 may further include a communication interface 730. This communication interface 730 may sometimes be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, etc., and is used to implement the device's transmission and reception functions. Optionally, the communication device 700 also includes a communication interface 730. The processor 710 and the communication interface 730 are coupled to each other. It is understood that the communication interface 730 can be a transceiver or an input / output interface.

[0300] When the communication device 700 is used to achieve Figure 4 and Figure 5 In the method shown, the processor 710 can be used to execute the functions of the processing unit 720, and the communication interface 730 can be used to execute the functions of the transceiver unit 710. Whether the communication interface 730 is used for sending or receiving depends on whether the communication device 700 is used to perform a sending or receiving action in the execution scheme.

[0301] When the aforementioned communication device 700 is a chip applied to the first communication device, the chip implements the functions of the first communication device in the above method embodiment. The chip of the first communication device receives information from other units (such as radio frequency units or antennas) in the first communication device, and this information may be sent to the first communication device by the second communication device; or, the chip of the first communication device sends signals to other units (such as radio frequency units or antennas) in the first communication device, and these signals may be sent from the first communication device to the second communication device.

[0302] When the aforementioned communication device 700 is a chip applied to a second communication device, the chip implements the functions of the second communication device in the above method embodiments. The chip of the second communication device receives signals from other units in the second communication device, which may be signals sent from the first communication device to the second communication device; or, the chip of the second communication device sends information to other units in the second communication device, which may be information sent from the second communication device to the first communication device.

[0303] It is understood that when the communication device 700 is a first communication device or a second communication device, the communication interface 730 can be a transceiver, specifically including a transmitter and a receiver, with the transmitter used to send signals and the receiver used to receive signals. When the communication device 700 is a chip applied to the first or second communication device, the communication interface 730 can be an input / output circuit, wherein the input circuit can be used for receiving and the output interface can be used for sending.

[0304] Optionally, the communication device 700 also includes a power supply circuit for supplying power to the communication device 700.

[0305] Figure 8 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application. For example... Figure 8 As shown, this terminal device 800 can be applied to, for example... Figure 1 In the system shown, the following is executed: Figure 4 and Figure 5 The illustrated method embodiment demonstrates the function of the first communication device. As shown, the terminal device 800 includes a processor 801 and a transceiver 802. Optionally, the terminal device 800 also includes a memory 803. The processor 801, transceiver 802, and memory 803 can communicate with each other via internal connection paths to transmit control and / or data signals. The memory 803 stores computer programs, and the processor 801 retrieves and runs the computer programs from the memory 803 to control the transceiver 802 to transmit and receive signals. Optionally, the terminal device 800 may also include an antenna 804 for transmitting uplink data or uplink control signaling output by the transceiver 802 via wireless signals.

[0306] The processor 801 and memory 803 can be combined into a single processing device. The processor 801 executes the program code stored in the memory 803 to achieve the aforementioned functions. In specific implementations, the memory 803 can be integrated into the processor 801 or independent of it. The processor 801 can be combined with... Figure 6 The processing unit or Figure 7 The processor corresponds to that in the system.

[0307] The transceiver 802 described above can be used with Figure 6 The transceiver unit or Figure 7 The communication interface corresponds to that in the diagram. Transceiver 802 may include a receiver (or receiver circuit) and a transmitter (or transmitter circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0308] It should be understood that Figure 8 The terminal device 800 shown can achieve Figure 4 and Figure 5 The methods illustrated in the embodiments involve various processes of the first communication device. The operations and / or functions of each unit in the terminal device 800 are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the descriptions in the above method embodiments; to avoid repetition, detailed descriptions are appropriately omitted here.

[0309] The processor 801 described above can be used to execute the actions implemented internally by the terminal as described in the preceding method embodiments, while the transceiver 802 can be used to execute the actions described in the preceding method embodiments whereby the network device sends data to the terminal or the terminal receives data from the network device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.

[0310] Optionally, the terminal device 800 may also include a power supply 805 for providing power to various devices or circuits in the terminal device 800.

[0311] In addition, to make the terminal device more functional, the terminal device 800 may also include one or more of the following: an input unit 806, a display unit 807, an audio circuit 807, a camera 808, and a sensor 710. The audio circuit may also include a speaker 807a, a microphone 807b, etc.

[0312] Figure 9 This is a schematic diagram of the network device provided in the embodiments of this application. For example, it can be a schematic diagram of a base station. This base station 900 can be applied to, for example... Figure 1 In the system shown, the following is executed: Figure 4 and Figure 5The illustrated method embodiment demonstrates the function of the second communication device. As shown, the base station 900 may include one or more of the following: one or more (DU+RU) 910s and one or more CUs 920s. CUs 920 can communicate with the next-generation core (NG core). The DU may include at least one antenna 911, at least one radio frequency unit 912, at least one processor 913, and at least one memory 914. The DU is primarily used for transmitting and receiving radio frequency signals, converting radio frequency signals to baseband signals, and performing some baseband processing. CUs 920 may include at least one processor 922 and at least one memory 921. CUs 920 and DUs can communicate via an interface. The control plane (CP) interface may be Fs-C, such as F1-C, and the user plane (UP) interface may be Fs-U, such as F1-U. The DU and RU can cooperate to implement the functions of the physical (PHY) layer. One DU can be connected to one or more RUs. The functions of the DU and RU can be configured in various ways according to the design. For example, a DU is configured to implement baseband functions, and an RU is configured to implement mid-RF functions. As another example, a DU is configured to implement higher-level functions in the PHY layer, and an RU is configured to implement lower-level and RF functions in the PHY layer. Higher-level functions in the PHY layer may include a portion of the PHY layer's functions that are closer to the medium access control (MAC) layer, while lower-level functions in the PHY layer may include another portion of the PHY layer's functions that are closer to the mid-RF side.

[0313] The CU 920 is primarily used for baseband processing and base station control. The DU and CU 920 can be physically installed together or separately, i.e., a distributed base station. The CU 920 serves as the control center of the base station and can correspond to... Figure 6 The processing unit or Figure 7 The processor in the unit, also known as a processing unit, is mainly used to perform baseband processing functions. For example, the CU 920 can be used to control the base station to execute the operation flow of the second communication device in the above method embodiment.

[0314] Specifically, baseband processing on the CU and DU can be divided according to the protocol layers of the wireless network. For example, the functions of the Packet Data Convergence Protocol (PDCP) layer and above are set in the CU, while the functions of protocol layers below PDCP, such as the Radio Link Control (RLC) layer and the MAC layer, are set in the DU. Alternatively, the CU may implement the functions of the RRC and PDCP layers, while the DU may implement the functions of the RLC, MAC, and PHY layers.

[0315] Alternatively, the base station 900 may include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. A DU may include at least one processor 913 and at least one memory 914, an RU may include at least one antenna 911 and at least one radio frequency unit 912, and a CU may include at least one processor 922 and at least one memory 921.

[0316] In one example, the CU 920 can be composed of one or more single boards. These boards can collectively support a single access-indicating radio access network (such as a 5G network), or they can each support radio access networks with different access standards (such as LTE, 5G, or other networks). The memory 921 and processor 922 can serve one or more single boards. That is, each single board can have its own memory and processor, or multiple single boards can share the same memory and processor. Furthermore, each single board can also have necessary circuitry. Similarly, the DU can be composed of one or more single boards. These boards can collectively support a single access-indicating radio access network (such as a 5G network), or they can each support radio access networks with different access standards (such as LTE, 5G, or other networks). The memory 914 and processor 913 can serve one or more single boards. That is, each single board can have its own memory and processor, or multiple single boards can share the same memory and processor. Furthermore, each single board can also have necessary circuitry.

[0317] It should be understood that Figure 9 The base station 900 shown can achieve Figure 4 The methods illustrated in the embodiments involve various processes of the second communication device. The operations and / or functions of each unit in the base station 900 are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the descriptions in the above method embodiments; to avoid repetition, detailed descriptions are appropriately omitted here.

[0318] It should be understood that Figure 9The base station 900 shown is merely one possible architecture for network devices and should not be construed as limiting this application. The method provided in this application can be applied to network devices with other architectures, such as network devices including CU, DU, and AAU. This application does not limit the specific architecture of the network device.

[0319] It should be understood that Figure 9 This is for illustrative purposes only and not a limitation; network devices may not rely on this. Figure 9 The structure shown is different. For example, a network device may also include an AAU, a CU, and / or a DU, or a BBU and an adaptive radio unit (ARU). This application does not limit this.

[0320] The aforementioned CU and / or DU can be used to perform the actions implemented internally by the second communication device as described in the preceding method embodiments, while the AAU can be used to perform the actions described in the preceding method embodiments whereby the second communication device sends data to the processing device or the processing device receives data from the second communication device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.

[0321] The above-described method embodiments can be applied to a processor, or implemented by a processor. A processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed through integrated logic circuits in the processor's hardware or through software instructions.

[0322] The aforementioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0323] The steps of the method disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or executed by a combination of hardware and software units in the decoding processor. The software units can reside in mature storage media in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0324] The memory in this application embodiment can be volatile memory or non-volatile memory, or it can include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0325] This application also provides a chip system including at least one processor for supporting the implementation of the functions of the terminal or second communication device involved in any of the above method embodiments, such as sending, receiving, or processing information involved in the above methods.

[0326] In one possible design, the chip system also includes a memory for storing computer program instructions and data, which may be located inside or outside the processor.

[0327] The chip system can consist of chips or include chips and other discrete components.

[0328] This application also provides a computer program product comprising: a computer program (also referred to as code or instructions), which, when executed, Figure 3 and Figure 5 In the illustrated embodiment, the method executed by the terminal is executed, or the method executed by the second communication device is executed.

[0329] This application also provides a computer-readable storage medium storing a computer program (also referred to as code or instructions). When the computer program is run, Figure 3 and Figure 5 In the illustrated embodiment, the method executed by the terminal or the method executed by the second communication device is executed.

[0330] This application also provides a communication system, which includes the aforementioned first communication device and second communication device.

[0331] The methods provided in the above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, they can be implemented, in whole or in part, in the form of a computer program product. This computer program product may include one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic disk), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0332] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0333] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0334] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0335] The unit described as a separate component may or may not be physically separate. The component shown as a unit may or may not be a physical unit; that is, it may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0336] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0337] If this function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, or part of it, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0338] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions between different embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

Claims

1. A communication method, characterized in that, Applied to a first communication device, the method includes: Receive first information from a second communication device, the first information being used to indicate information on K channel sounding reference signal (SRS) resources, where K is an integer greater than 1, and the information on the K SRS resources includes indication information and amplitude information of the K SRS resources; The signal is sent to the second communication device via the first analog beam associated with the first information.

2. The method according to claim 1, characterized in that, The indication information for the K SRS resources includes: the indexes of the K SRS resources.

3. The method according to claim 2, characterized in that, The amplitude information of the K SRS resources includes: the K amplitude information corresponding to the K SRS resources.

4. The method according to claim 3, characterized in that, The indexes of the K SRS resources include: the index of the preset SRS resources, and the indexes of (K-1) SRS resources; The amplitude information of the K SRS resources includes: the amplitude information corresponding to the preset SRS resources, and (K-1) amplitude information corresponding to the (K-1) SRS resources; Wherein, the preset SRS resource is one of the K SRS resources, and the (K-1) SRS resources are the SRS resources other than the preset SRS resource among the K SRS resources.

5. The method according to claim 3, characterized in that, The information of the K SRS resources also includes: the K phase information corresponding to the K SRS resources.

6. The method according to claim 4, characterized in that, The information of the K SRS resources also includes: the phase information corresponding to the preset SRS resources, and the (K-1) phase information corresponding to the (K-1) SRS resources.

7. The method according to any one of claims 1 to 6, characterized in that, The method further includes: The capability information is sent to the second communication device, the capability information being used to indicate a first quantity, the first quantity being used to indicate the number of analog beams that can be combined, the analog beams that can be combined including the analog beams used when transmitting K SRSs from the K SRS resources, and the first quantity being greater than or equal to K.

8. The method according to any one of claims 1 to 7, characterized in that, The first information is carried in at least one of the following signaling: Downlink Control Information (DCI), Radio Resource Control (RRC) signaling, or Media Access Control (MAC) Control Element (CE) signaling.

9. The method according to any one of claims 1 to 8, characterized in that, The method further includes: Receive configuration information for at least the K SRS resources from the second communication device; According to the configuration information, at least K SRSs are transmitted on at least K SRS resources, and the at least K SRSs are used by the second communication device to determine the information of the K SRS resources.

10. The method according to claim 9, characterized in that, The receiving of multiple SRS resources from the second communication device includes: The system receives configuration information for at least one SRS resource set from the second communication device, the at least one SRS resource set including at least the K SRS resources.

11. A communication method, characterized in that, Applied to a second communication device, the method includes: Send first information to the first communication device. The first information is used to indicate information of K SRS resources, where K is an integer greater than 1. The information of the K SRS resources includes indication information of the K SRS resources and amplitude information of the K SRS resources. Receive a signal from the first communication device, the signal being transmitted by the first communication device via a first analog beam associated with the first information.

12. The method according to claim 11, characterized in that, The indication information for the K SRS resources includes: the indexes of the K SRS resources.

13. The method according to claim 12, characterized in that, The amplitude information of the K SRS resources includes: the K amplitude information corresponding to the K SRS resources.

14. The method according to claim 13, characterized in that, The indexes of the K SRS resources include: the index of the preset SRS resources, and the indexes of (K-1) SRS resources; The amplitude information of the K SRS resources includes: the amplitude information corresponding to the preset SRS resources, and (K-1) amplitude information corresponding to the (K-1) SRS resources; Wherein, the preset SRS resource is one of the K SRS resources, and the (K-1) SRS resources are the SRS resources other than the preset SRS resource among the K SRS resources.

15. The method according to claim 13, characterized in that, The information of the K SRS resources also includes: the K phase information corresponding to the K SRS resources.

16. The method according to claim 14, characterized in that, The information of the K SRS resources also includes: the phase information corresponding to the preset SRS resources, and the (K-1) phase information corresponding to the (K-1) SRS resources.

17. The method according to any one of claims 11 to 16, characterized in that, The method further includes: The capability information received from the first communication device indicates a first quantity, which in turn indicates the number of analog beams available for merging. The analog beams available for merging include analog beams used when transmitting K SRSs from the K SRS resources. The first quantity is greater than or equal to K.

18. The method according to any one of claims 11 to 17, characterized in that, The first information is carried in at least one of the following signaling: DCI, RRC signaling, or MAC CE signaling.

19. The method according to any one of claims 11 to 18, characterized in that, The method further includes: Send configuration information for at least the K SRS resources to the first communication device; Receive at least K SRSs from the first communication device, wherein the at least K SRSs are transmitted on at least the K SRS resources according to the configuration information; Based on the at least K SRS, determine the information of the K SRS resources.

20. The method according to claim 19, characterized in that, Sending configuration information for at least the K SRS resources to the first communication device includes: The configuration information of at least one SRS resource set is sent to the first communication device, wherein the at least one SRS resource set includes at least the K SRS resources.

21. A communication device, characterized in that, It includes units for implementing the method as described in any one of claims 1 to 10, or units for implementing the method as described in any one of claims 11 to 20.

22. A communication device, characterized in that, The device includes a processor coupled to a memory for storing a computer program, the processor for executing the computer program stored in the memory to cause the communication device to perform the method as claimed in any one of claims 1 to 10, or to cause the communication device to perform the method as claimed in any one of claims 11 to 20.

23. A computer-readable storage medium, characterized in that, The computer stores instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 10, or cause the computer to perform the method as described in any one of claims 11 to 20.

24. A computer program product, characterized in that, The computer program product includes: a computer program that, when run, causes a computer to perform the method of any one of claims 1 to 10, or causes a computer to perform the method of any one of claims 11 to 20.

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