Beam management method, and apparatus

Abstract

The present application relates to the technical field of communications. Disclosed in the present application are a beam management method, and an apparatus. The method comprises: a network device sends M pilot groups to a terminal device, each pilot group corresponding to a plurality of pilot resources or a plurality of pilot ports, and M being a positive integer; and, the network device acquires a measurement value and an index value of at least one pilot group amongst the M pilot groups, the measurement value being used for representing channel state information of the pilot group, and the index value being used for representing a pilot resource or a pilot port associated with the measurement value. In the present application, after the network device sends the plurality of pilot groups to the terminal device, the terminal device calculates the measurement value of each pilot group on the basis of the plurality of pilot groups, and then reports the measurement value corresponding to at least one pilot group to the network device. Because analog beams of different pilot groups are different, the present application can achieve measurement and reporting of different analog beams, thereby achieving sensing of different analog beams by the terminal device, and improving communication performance of multi-user systems.

Description

Beam management method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on November 29, 2023, with application number 202311622758.4 and application name “A Beam Management Method and Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a beam management method and device. Background Art

[0003] In the current fifth-generation mobile communication technology (5G) era, as well as the future 5G+ and 6G eras, the problem of signal and energy degradation exists during signal transmission in mid- and high-frequency bands (such as 6GHz and 28GHz). Larger antenna arrays are usually used to concentrate signal energy within a smaller angle range through weighted processing of the antenna array, forming a light beam-like signal called a beam.

[0004] As the number of communication signals increases, the number of antenna transmission beams also increases, resulting in base station processing capabilities being unable to keep up with signal processing requirements. To address this issue, the hybrid beamforming (HBF) architecture was introduced. However, signal transmission based on the HBF architecture can affect the performance of multi-user systems.

[0005] Summary of the Invention

[0006] The present application provides a beam management method and apparatus for implementing analog beam measurement, selection, and reporting under a hybrid beam architecture.

[0007] The technical solution is as follows:

[0008] In a first aspect, embodiments of the present application provide a beam management method, comprising: a network device sending M pilot groups to a terminal device, each of the M pilot groups corresponding to multiple pilot resources or multiple pilot ports, where M is a positive integer. The network device obtains a measurement value and an index value for at least one pilot group among the M pilot groups. The measurement value represents channel state information of the pilot group, and the index value represents the pilot resource or pilot port associated with the measurement value.

[0009] One pilot group corresponds to one analog beam, or corresponds to multiple digital beams of one analog beam.

[0010] In a possible embodiment, the pilot grouping may be a pilot resource set grouping or a pilot resource grouping. In the case where the pilot grouping is a pilot resource set grouping, each pilot grouping corresponds to multiple pilot resources; in the case where the pilot grouping is a pilot port grouping, each pilot grouping corresponds to multiple pilot ports.

[0011] In one example, a network device configures multiple pilot resource sets to a terminal device, where each pilot resource set corresponds to one or more pilot resources. The pilots contained in different pilot resource sets use different analog domain weights and are sent using the same or different digital domain weights, i.e., different pilot resource sets correspond to different analog beams. In one or more pilot resources in the same pilot resource set, the pilots contained in each pilot resource use the same analog domain weights and different digital domain weights for transmission, i.e., different pilot resources in the same pilot resource set correspond to the same analog beam but different digital beams.

[0012] In one example, a network device configures a pilot resource set to a terminal device, which includes multiple pilot resources, and each pilot resource corresponds to multiple pilot ports. The pilots contained in different pilot resources use different analog domain weights and are sent using the same or different digital domain weights, that is, different pilot resources correspond to different analog beams. In one or more pilot ports in the same pilot resource, the pilots contained in each pilot port use the same analog domain weights and different digital domain weights for transmission, that is, different pilot ports in the same pilot resource correspond to the same analog beams and different digital beams.

[0013] In this application, a network device sends multiple pilot groups to a terminal device. Different pilot groups correspond to different simulated beams, and each pilot group in the multiple pilot groups corresponds to multiple pilot resources or multiple pilot ports. The terminal device calculates the measurement value of each pilot group based on the multiple pilot groups. The terminal device then reports the measurement value corresponding to each pilot group to the network device. Because different pilot groups have different simulated beams, different simulated beams can be measured and reported, thereby enabling the terminal device to perceive different simulated beams and improving the performance of multi-user system communications.

[0014] In a possible implementation of the present application, each index value is associated with one or more measurement values, or multiple index values ​​are associated with one measurement value.

[0015] In a possible implementation of the present application, when each pilot group corresponds to multiple pilot resources, obtaining the measurement value corresponding to each pilot group includes: the network device obtains the measurement value of each pilot resource in the multiple pilot resources corresponding to each pilot group.

[0016] In one possible implementation of the present application, the measurement value corresponding to each pilot group includes one or more of the following: an average or maximum value of the measurement values ​​of multiple pilot resources. Alternatively, the multiple pilot resource measurement values ​​are arranged in a preset order, where the average or sum of the first N measurement values ​​is calculated, where N is a positive integer.

[0017] Among them, the preset order can also be from large to small, from small to large, or other arrangement orders, which is not limited in the embodiments of the present application.

[0018] In a possible implementation of the present application, when each pilot group corresponds to multiple pilot ports, obtaining the measurement value corresponding to each pilot group includes: the network device obtaining the measurement value of each pilot port among the multiple pilot ports corresponding to each pilot group.

[0019] In one possible implementation of the present application, the measurement value corresponding to each pilot group includes one or more of the following: an average or maximum value of the measurement values ​​of multiple pilot ports. Alternatively, the multiple pilot port measurement values ​​are arranged in a preset order, where the average or sum of the first N measurement values ​​is calculated, where N is a positive integer.

[0020] Among them, the preset order can also be from large to small, from small to large, or other arrangement orders, which is not limited in the embodiments of the present application.

[0021] In one possible implementation of the present application, when a pilot group corresponds to L pilot ports, where L is an even number, every two pilot ports form a group, including: the kth pilot port and the (k+N / 2)th pilot port correspond to a group, where k is a positive integer. Alternatively, the kth pilot port and the (k+1)th pilot port correspond to a group, where k is an odd number.

[0022] In a possible implementation of the present application, the method provided in an embodiment of the present application further includes: the network device sends spatial domain reception indication information of a downlink signal to the terminal device, and the spatial domain reception indication information is associated with at least one pilot group.

[0023] In a possible implementation of the present application, the indication information includes a local index, and the local index is used to indicate a pilot group referenced by spatial domain reception of a downlink signal.

[0024] In a second aspect, an embodiment of the present application provides a beam management method, comprising: a terminal device receiving M pilot groups from a network device, each of the M pilot groups corresponding to multiple pilot resources or multiple pilot ports, where M is a positive integer. The terminal device determines a measurement value of at least one pilot group in the M pilot groups. The measurement value is used to characterize the channel state information of the pilot group. The terminal device reports the measurement value and index value of at least one pilot group in the M pilot groups to the network device. The index value is used to characterize the pilot resource or pilot port associated with the measurement value.

[0025] In a possible implementation of the present application, each index value is associated with one or more measurement values, or multiple index values ​​are associated with one measurement value.

[0026] In a possible implementation of the present application, when each pilot group corresponds to multiple pilot resources, obtaining the measurement value of each pilot group includes: the terminal device determines the measurement value of each pilot resource in the multiple pilot resources corresponding to each pilot group.

[0027] In one possible implementation of the present application, the measurement value corresponding to each pilot group includes one or more of the following: an average or maximum value of the measurement values ​​of multiple pilot resources. Alternatively, the multiple pilot resource measurement values ​​are arranged in a preset order, where the average or sum of the first N measurement values ​​is calculated, where N is a positive integer.

[0028] In a possible implementation of the present application, when each pilot group corresponds to multiple pilot ports, determining the measurement value of each pilot group includes: the terminal device determines the measurement value of each pilot port in the multiple pilot ports corresponding to each pilot group.

[0029] In one possible implementation of the present application, the measurement value corresponding to each pilot group includes one or more of the following: an average or maximum value of measurement values ​​of multiple pilot ports, or an average or sum of the first N maximum measurement values ​​of the multiple pilot ports, where N is a positive integer.

[0030] In one possible implementation of the present application, when a pilot group corresponds to L pilot ports, where L is an even number, every two pilot ports form a group, including: the kth pilot port and the (k+N / 2)th pilot port correspond to a group, where k is a positive integer. Alternatively, the kth pilot port and the (k+1)th pilot port correspond to a group, where k is an odd number.

[0031] In a possible implementation of the present application, the method provided in an embodiment of the present application further includes: the terminal device obtains spatial domain reception indication information of the downlink signal, and the spatial domain reception indication information is associated with at least one pilot group.

[0032] In a possible implementation of the present application, the spatial domain reception indication information includes a local index, and the local index is used to indicate the pilot group referenced by the spatial domain reception of the downlink signal.

[0033] In a third aspect, embodiments of the present application provide a beam management device, comprising: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the device is configured to implement a beam management method as described in the first aspect or various possible implementations of the first aspect, or a beam management method as described in the second aspect or various possible implementations of the second aspect.

[0034] In a fourth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run a computer program or instructions to implement a beam management method as described in the first aspect or various possible implementations of the first aspect, or a beam management method as described in the second aspect or various possible implementations of the second aspect.

[0035] The communication interface is used to communicate with other modules outside the chip.

[0036] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium comprising computer instructions. When the computer instructions are executed on a communication device, the communication device executes a beam management method as described in the first aspect or various possible implementations of the first aspect, or a beam management method as described in the second aspect or various possible implementations of the second aspect.

[0037] In the sixth aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when the instructions are run on a computer, enables the computer to execute a beam management method described in the first aspect or various possible implementations of the first aspect, or a beam management method described in the second aspect or various possible implementations of the second aspect.

[0038] In the seventh aspect, an embodiment of the present application provides a communication device, which includes a processor and a storage medium, wherein the storage medium stores instructions, and when the instructions are executed by the processor, a beam management method as described in one aspect or various possible implementations of the first aspect is implemented, or a beam management method as described in the second aspect or various possible implementations of the second aspect is implemented.

[0039] In an eighth aspect, an embodiment of the present application provides a communication device, comprising: at least one processor, at least one processor coupled to a memory, the memory being used to store computer programs or instructions, and at least one processor being used to execute the computer programs or instructions in the memory, so that the communication device executes a beam management method described in one aspect or various possible implementations of the first aspect, or a beam management method described in the second aspect or various possible implementations of the second aspect.

[0040] Optionally, the communication device described in the eighth aspect also includes: a memory.

[0041] In the ninth aspect, an embodiment of the present application provides a communication device, which includes one or more modules for implementing the method of the first aspect above, and the one or more modules can correspond to the various steps in the method of the first aspect above; or, implementing the method of the second aspect above, and the one or more modules can correspond to the various steps in the method of the second aspect above.

[0042] Any of the devices, computer storage media, computer program products, chips, or communication systems provided above are used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding schemes in the corresponding methods provided above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] FIG1 is a schematic diagram of the architecture of a communication system provided by the present application;

[0044] FIG2 is a schematic diagram of a network element structure of a communication device provided by the present application;

[0045] FIG3 is a schematic diagram of a beam management method provided in an embodiment of the present application;

[0046] FIG4 is a schematic diagram of the structure of a MAC-CE provided in an embodiment of the present application;

[0047] FIG5 is a schematic block diagram of a terminal device according to an embodiment of the present application;

[0048] FIG6 is a schematic block diagram of a network device according to an embodiment of the present application;

[0049] FIG7 is a schematic diagram of a chip structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. For example, the first valid signal and the second valid signal are merely used to distinguish different valid signals and do not limit their order. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different.

[0051] It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0052] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0053] The technical solution of the present application can be applied to various communication systems, such as: long time evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WiMAX) communication system, public land mobile network (PLMN) system, device to device (D2D) network system or machine to machine (M2M) network system and future fifth generation mobile communication technology (5G) network system, etc.

[0054] The network architecture and service scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems. In the embodiments of the present application, the method provided is applied to a new radio (NR) system or a 5G network as an example for explanation.

[0055] Before introducing the embodiments of the present application, the following definitions are given for the relevant terms involved in the embodiments of the present application:

[0056] 1) Wave beam: This refers to a signal similar to a light beam formed by weighted processing of the antenna array on the base station side or the terminal side to concentrate the signal energy within a smaller angle range.

[0057] 2) Transmission configuration index (TCI): used to indicate downlink beam related information in downlink control information (DCI).

[0058] 3) Spatial relation: used to indicate relevant information of the uplink beam.

[0059] As shown in Figure 1, Figure 1 shows a communication system provided by an embodiment of the present application, which includes: one or more network devices, and one or more terminal devices. For example, Figure 1 (a) shows multiple terminal devices (such as terminal 102 and terminal 103) communicating with a network device (such as base station 101), and Figure 1 (b) shows a terminal device (such as terminal 107) communicating with multiple network devices (such as base station 104, base station 105, and base station 106).

[0060] Among them, the communication between the network device and the terminal device needs to be carried out using a beam. The embodiment of the beam in NR can be a spatial domain filter, a spatial filter, a spatial domain parameter, a spatial parameter, a spatial parameter, a spatial domain setting, a spatial setting, Quasi-colocation (QCL) information, QCL assumption, QCL indication, etc., and the beam can be indicated by a TCI state parameter or a spatial relation parameter. Therefore, in this application, the beam can be replaced by a spatial filter, a spatial filter, a spatial parameter, a spatial parameter, a spatial setting, a spatial setting, QCL information, QCL assumption, QCL indication, TCI-state, spatial relationship, etc.

[0061] It can be understood that beam can also be other terms representing beam, which is not limited in this application.

[0062] Among them, the network device needs to use a transmission beam (Tx beam) to send data information, and the terminal device needs to use a reception beam (Rx beam) to receive data information.

[0063] A transmit beam refers to the distribution of signal strength in different directions in space after a signal is transmitted through an antenna. It is used to transmit signals. A transmit beam can also refer to a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. The downlink beam can be indicated by the TCI-state parameter.

[0064] A receive beam can refer to the signal strength distribution of a wireless signal received from an antenna in different directions in space, used for signal reception. A receive beam can also refer to a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting. An uplink beam can be indicated by a spatial relationship, an uplink TCI-state, or a sounding reference signal (SRS) resource.

[0065] In the present application, a beam may be a wide beam, a narrow beam, or other types of beams. The beam forming technology may be a beamforming technology (eg, digital beamforming technology, analog beamforming technology, hybrid digital / analog beamforming technology, etc.), or other technologies.

[0066] In one application scenario, during downlink transmission between a network device and a terminal device, the transmitting beam used by the network device is determined by the network device, and the receiving beam used by the terminal device is determined by the network device notifying the terminal device.

[0067] As an example, as shown in Figure 1 (a), the base station 101 sends downlink control information (DCI) signaling to the terminal 102. The DCI signaling includes a TCI field, which is used to indicate a TCI-state. The TCI-state includes a target reference signal resource (also called a pilot resource). For the downlink transmission process using the TCI-state, the terminal 102 uses the receiving beam corresponding to the pilot resource for reception. The receiving beam corresponding to the pilot resource is known in advance by the terminal 102. For example, the terminal 102 can obtain the receiving beam by measuring the pilot resource.

[0068] As another example, for the uplink transmission process between the network device and the terminal device, based on the above-mentioned TCI-state, the terminal 102 can use the transmitting beam corresponding to the target reference signal resource to send data, or use the receiving beam corresponding to the target reference signal resource to send data in reverse.

[0069] During communication between a network device and a terminal device, the network device may indicate to the terminal device beams for multiple different channels and / or reference signals, or may indicate to the terminal device a single beam that is used for multiple channels and / or reference signals simultaneously, referred to as a common beam. It is worth noting that the term "common beam" is used only for ease of description in the embodiments of this application and may be referred to by other names, which is not limited in this application.

[0070] As an example, the network device may indicate an uplink common beam to the terminal device for the transmission of multiple uplink channels and / or uplink reference signals; or, the network device may indicate a downlink common beam to the terminal device for the transmission of multiple downlink channels and / or downlink reference signals; or, the network device may indicate an uplink and downlink common beam to the terminal device for the transmission of multiple uplink channels and / or uplink reference signals, and multiple downlink channels and / or downlink reference signals.

[0071] The terminal device in the embodiments of the present application is a device with wireless communication capabilities. Terminal devices are also called user equipment (UE), mobile station (MS), mobile terminal (MT), etc., and are devices that provide voice and / or data connectivity to users. For example, handheld devices and vehicle-mounted devices with wireless connection capabilities. Currently, some examples of terminals include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices (such as smart watches, smart bracelets, pedometers, etc.), vehicle-mounted devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed railways, etc.), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes (such as refrigerators, televisions, air conditioners, electricity meters, etc.), etc.

[0072] The network device in the embodiment of the present application is an entity used in conjunction with a terminal device and can be used to transmit or receive signals. A network device may be any device with wireless transceiver functions, including but not limited to: an evolved NodeB (eNB), a radio network controller (RNC), a node base (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., a home evolved NodeB, or home node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be 5G, such as a gNB in ​​an NR system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), etc.

[0073] It should be understood that the network devices and terminal devices in the embodiments of the present application can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; or deployed on the water; or deployed in the air on aircraft, balloons, and satellites. The embodiments of the present application do not limit the application scenarios of the network devices and terminal devices.

[0074] Figure 2 shows a schematic diagram of a network element structure of a communication device provided in an embodiment of the present application. The network element structure of the terminal device and the network device in the embodiment of the present application can refer to the structure shown in Figure 2. The communication device includes a processor 201, a communication line, at least one transceiver 202, and an antenna 203.

[0075] The processor 201 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.

[0076] A communication link may include a pathway for transmitting information between the aforementioned components.

[0077] The transceiver 202 may be any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access networks (RAN), wireless local area networks (WLAN), and the like.

[0078] The transceiver 202 includes a transmitter 2021 and a receiver 2022 . The transmitter 2021 is connected to the antenna 203 , and the receiver 2022 is connected to the antenna 203 .

[0079] Optionally, the communication device may further include a memory 204 .

[0080] The memory 204 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 204 may exist independently and be connected to the processor 201 via a communication line. The memory 204 may also be integrated with the processor 201.

[0081] The memory 204 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 201. The processor 201 is used to execute the computer-executable instructions stored in the memory 204, thereby implementing the methods provided in the following embodiments of the present application.

[0082] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

[0083] In a specific implementation, as an embodiment, the processor 201 may include one or more CPUs.

[0084] In a specific implementation, as an embodiment, a communication device may include multiple processors, each of which may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0085] Antenna 203 is typically located on an antenna panel, with one or more antennas on each panel. One or more antennas are arranged into an antenna array, which performs beamforming to form a simulated beam. The antenna array can generate multiple simulated beams in different directions.

[0086] In a specific implementation, the terminal device can be equipped with multiple antenna panels, which are distributed in different positions and facing different directions, to ensure that no matter which direction the terminal device faces, there is at least one antenna panel facing the network device, thereby transmitting data with the network device.

[0087] Optionally, the terminal device may simultaneously turn on all antenna panels for transmission, or may use only a single antenna panel for transmission at a time. Whether the antenna panel of the terminal device is turned on or off generally needs to be notified to the network device.

[0088] In an embodiment of the present application, the antenna panel can also be represented in other ways. For example, the antenna panel can be represented by an antenna port (for example, a channel state information-reference signal (CSI-RS) port, a sounding reference signal (SRS) port, a demodulation reference signal (DMRS) port, a phase tracking reference signal (PTRS) port, a cell reference signal (CRS) port, a time-frequency tracking reference signal (TRS) port, a synchronization signal and a physical broadcast channel block (SSB) port) or an antenna port group; it can also be represented by resources (for example, CSI-RS resources, SRS resources, DMRS resources, PTRS resources, CRS resources, TRS resources, SSB resources, etc.) or a resource group; it can also be represented by a certain channel (for example, a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel, PRACH), physical downlink sharing channel (PDSCH), physical downlink control channel (PDCCH), physical broadcast channel (PBCH), etc.); it can also be characterized by beam, QCL, TCI-state, spatial relation or an index configured in QCL, TCI-state, spatial relation; it can also be characterized by beam group, QCL group, TCI-state group, spatial relation group, etc., which is not limited in the embodiments of the present application.

[0089] In existing technologies, each beam corresponds to a pilot resource, and communications equipment can determine beam quality by measuring the pilot resource. For example, if a beam is a transmit beam of a network device, after the network device configures the pilot resource for a terminal device, the terminal device measures the pilot resource, obtains a measurement value, and reports the measurement value to the network device. Based on the measurement value, the network device can determine the quality of the beam corresponding to the pilot resource.

[0090] Currently, the increasing number of beams increases the processing burden on communication devices. Therefore, some related technologies often use a large-array hybrid beamforming (HBF) architecture. The HBF architecture addresses the problem of reduced processing power on communication devices due to an excessive number of beams. Specifically, analog beamforming is first performed on the beams to be transmitted by the network device, merging them into multiple analog domain beams (also called analog beams). Digital beamforming is then performed on these multiple analog domain beams, merging them into multiple digital domain beams (also called digital beams). In this case, each analog beam corresponds to a pilot resource. For example, the pilot resources configured by the network terminal for the terminal device include a resource set (resourceSet). Each resourceSet contains multiple resources (resources). A resource is a pilot resource corresponding to each analog beam, and each resource contains one or two pilot ports. Based on the measurement values ​​of multiple resources, the terminal device selects one to four resources and reports the measurement values ​​corresponding to each resource to the network device, allowing the network device to understand the quality of the analog beams. It is understandable that if the resource includes one pilot port, the reported measurement value is the measurement value of the pilot port; if the resource includes two pilot ports, the reported measurement value is the average of the measurement values ​​of the two pilot ports.

[0091] However, the same analog beam includes multiple digital beams. In this case, different pilot resources need to be configured for different digital beams under the same analog beam. When the terminal device selects 1 to 4 pilot resources from multiple pilot resources for reporting, the terminal device cannot perceive the specific weighting method of the pilot resources (for example, the analog beam attribute method and the digital beam attribute method). Therefore, the selected pilot resources may be based on different digital beams under the same analog beam, which makes it impossible to achieve effective measurement of different analog beams.

[0092] In order to solve the above problems, the present application proposes a beam management method, which groups the pilot resources used for beam management, uses the pilot resources of the same simulated beam as the same group, and the pilot resources of different simulated beams as different groups, measures the group-level measurement values, and selects pilot resources from different groups to report to the network device, thereby realizing simulated beam measurement, selection and reporting under the HBF architecture.

[0093] In the embodiments of the present application, the specific structure of the execution subject of a beam management method is not particularly limited in the embodiments of the present application, as long as it is possible to communicate according to a beam management method of the embodiments of the present application by running a program that records the code of the beam management method of the embodiments of the present application. For example, the execution subject of a beam management method provided in the embodiments of the present application may be a functional module in a network device that can call and execute a program, or a communication device applied to a network device, such as a chip. The execution subject of a beam management method provided in the embodiments of the present application may be a functional module in a terminal device that can call and execute a program, or a communication device applied to a terminal device, such as a chip, and this application does not limit this.

[0094] FIG3 is a flow chart of a beam management method provided in an embodiment of the present application. The method includes:

[0095] Step 301: A network device sends M pilot packets to a terminal device. Correspondingly, the terminal device receives the M pilot packets from the network device. Each of the M pilot packets corresponds to multiple pilot resources or multiple pilot ports, where M is a positive integer.

[0096] The pilot group refers to a group of pilots, for example, a group of pilot resource sets or a group of pilot resources. A pilot group corresponds to an analog beam, or to multiple digital beams of an analog beam.

[0097] One pilot group corresponds to one analog beam, or to multiple digital beams of one analog beam.

[0098] For example, a network device sends three pilot groups to a terminal device: pilot group 1, pilot group 2, and pilot group 3. The analog beams corresponding to these three pilot groups are analog beam 1, analog beam 2, and analog beam 3, respectively. When pilot group 1 corresponds to three pilot resources, pilot resource 1, pilot resource 2, and pilot resource 3 correspond to analog beam 1 and digital beam 1, digital beam 2, and digital beam 3, respectively. Alternatively, when pilot group 1 corresponds to three pilot ports, pilot port 1, pilot port 2, and pilot port 3 correspond to analog beam 1 and digital beam 1, digital beam 2, and digital beam 3, respectively.

[0099] Among them, the pilot resources can be channel state information reference signal (CSI-RS) resources, sounding reference signal (SRS) resources, demodulation reference signal (DMRS) resources, phase tracking reference signal (PTRS) resources, cell reference signal (CRS) resources, time-frequency tracking reference signal (TRS) resources, synchronization signal and physical broadcast channel block (SSB) resources, etc., which are not limited in the embodiments of the present application.

[0100] Among them, the pilot port can also be a physical antenna, antenna port, reference signal port, virtual port, etc. The pilot port includes a CSI-RS port, an SRS port, a DMRS port, a PTRS port, a CRS port, a TRS port, an SSB port, etc., which is not limited in the embodiments of the present application.

[0101] In a possible embodiment, the pilot group may be a pilot resource set (resourceSet) group, a pilot resource (resource) group, or a pilot port (port) group. When the pilot group is a pilot resource set group, each pilot group corresponds to multiple pilot resources; when the pilot group is a pilot port group, each pilot group corresponds to multiple pilot ports.

[0102] As an example, the network device configures multiple pilot resource sets to the terminal device, wherein each pilot resource set corresponds to one or more pilot resources. The pilots contained in different pilot resource sets use different analog domain weights and are sent using the same or different digital domain weights, that is, the analog beams corresponding to different pilot resource sets are different. In one or more pilot resources in the same pilot resource set, the pilots contained in each pilot resource use the same analog domain weights and different digital domain weights for transmission, that is, the analog beams corresponding to different pilot resources in the same pilot resource set are the same, but the digital beams are different.

[0103] For example, the network device configures four pilot resource sets, resourceSet#1, resourceSet#2, resourceSet#3, and resourceSet#4, to the terminal device. Each pilot resource set includes four pilot resources, resource#1, resource#2, resource#3, and resource#4. The analog beams corresponding to resourceSet#1, resourceSet#2, resourceSet#3, and resourceSet#4 are analog beam 1, analog beam 2, analog beam 3, and analog beam 4, respectively. The pilots contained in the four pilot resources in resourceSet#1 are sent using digital domain weights 1, digital domain weights 2, digital domain weights 3, and digital domain weights 4, respectively. The same applies to the pilot resources in resourceSet#2, resourceSet#3, and resourceSet#4, and will not be repeated here.

[0104] It is worth noting that the pilots contained in the four pilot resources in resourceSet#2, or resourceSet#3, or resourceSet#4 can be sent using the same or different digital domain weights as the digital domain weights used by the pilots contained in the four pilot resources in resourceSet#1. For example, the pilots contained in the four pilot resources in resourceSet2 are also sent using digital domain weights 1, digital domain weights 2, digital domain weights 3, and digital domain weights 4, respectively, or are sent using digital domain weights 4, digital domain weights 5, digital domain weights 6, and digital domain weights 7, which is not limited in the embodiments of the present application.

[0105] In an embodiment of the present application, the pilot resource set can be a channel state information-synchronization signal and physical broadcast channel block-resource set (channel state information-synchronization signal and physical broadcast channel block-resourceSet, CSI-SSB-resourceSet), or a channel state information-interference measurement-resource set (channel state information-interferece measurement-resourceSet, CSI-IM-resourceSet), or a non-zero power-channel state information-reference signal-resource set (non-zero power-channel state information-reference signal-resourceSet, NZP-CSI-RS-resourceSet), or a zero power-channel state information-reference signal-resource set (zero power-channel state information-reference signal-resourceSet, ZP-CSI-RS-resourceSet), which is not limited in the embodiment of the present application.

[0106] As another example, the network device configures a pilot resource set to the terminal device, which includes multiple pilot resources, and each pilot resource corresponds to multiple pilot ports. Among them, the pilots contained in different pilot resources use different analog domain weights and are sent using the same or different digital domain weights, that is, different pilot resources correspond to different analog beams. In one or more pilot ports in the same pilot resource, the pilots contained in each pilot port are sent using the same analog domain weights and different digital domain weights, that is, different pilot ports in the same pilot resource correspond to the same analog beams and different digital beams.

[0107] For example, the network device configures a pilot resource set resourceSet#1 to the terminal device. ResourceSet#1 includes four pilot resources, resource#1, resource#2, resource#3, and resource#4. Each pilot resource includes four pilot ports, port#1, port#2, port#3, and port#4. The analog beams corresponding to resource#1, resource#2, resource#3, and resource#4 are analog beam 1, analog beam 2, analog beam 3, and analog beam 4, respectively. The pilots contained in the four pilot ports in resource#1 are sent using digital domain weights 1, digital domain weights 2, digital domain weights 3, and digital domain weights 4, respectively. The same applies to the pilot ports in resource#2, resource#3, and resource#4, and will not be repeated here.

[0108] It is worth noting that the pilots contained in the four pilot resources in resource#2, resource#3, or resource#4 can be sent using the same or different digital domain weights as the digital domain weights used by the pilots contained in the four pilot ports in resource#1. For example, the pilots contained in the four pilot ports in resource#2 are also sent using digital domain weights 1, 2, 3, and 4, respectively, or using digital domain weights 4, 5, 6, and 7, respectively. This is not limited in the embodiments of the present application.

[0109] Optionally, when the pilot grouping is a pilot port grouping, polarization grouping is performed on the multiple pilot ports included in each pilot resource. It can be understood that every two pilot ports correspond to one beam.

[0110] In one embodiment of the present application, when a pilot group corresponds to L pilot ports, where L is an even number, every two pilot ports form a group, corresponding to one simulated beam, including: the kth pilot port and the (k+N / 2)th pilot port correspond to a group, where k is a positive integer; or, the kth pilot port and the (k+1)th pilot port correspond to a group, where k is an odd number.

[0111] For example, let's take the pilot resource resource#1, which includes 8 pilot ports port#1 to port#8. Port#1 and port#5 correspond to one analog beam, port#2 and port#6 correspond to one analog beam, port#3 and port#7 correspond to one analog beam, and port#4 and port#8 correspond to one analog beam. It can be understood that the first half of the 8 pilot ports are the same polarization beam, and the second half are another polarization beam. Alternatively, port#1 and port#2 correspond to one analog beam, port#3 and port#4 correspond to one analog beam, port#5 and port#6 correspond to one analog beam, and port#7 and port#8 correspond to one analog beam. It can be understood that the pilot ports with odd numbers among the 8 pilot ports are the same polarization beam, and the pilot ports with even numbers are another polarization beam.

[0112] In an embodiment of the present application, the pilot resource may be a CSI-SSB-resource, or a CSI-IM-resource, or an NZP-CSI-RS-resource, or a ZP-CSI-RS-resource, which is not limited in the embodiment of the present application.

[0113] Step 302: The terminal device obtains a measurement value of each pilot group.

[0114] The measurement value is used to characterize the channel state information of the pilot packet. The measurement value can be any one of reference signal received power (RSRP), reference signal receiving quality (RSRQ), or signal to interference plus noise ratio (SINR).

[0115] In the case where each pilot group corresponds to a pilot resource set, the measurement value of the pilot group is the measurement value of the pilot resource set; in the case where each pilot group corresponds to a pilot resource, the measurement value of each pilot group is the measurement value of the pilot resource.

[0116] In a possible embodiment of the present application, when each pilot group corresponds to multiple pilot resources, determining the measurement value corresponding to each pilot group includes: the terminal device determines the measurement value of each pilot resource in the multiple pilot resources corresponding to each pilot group.

[0117] As an example, the terminal device measures the measurement value of each pilot resource based on multiple pilot resources in each pilot resource set, and then determines the measurement value of the pilot resource set based on the measurement value of each pilot resource.

[0118] It is understood that the measurement value of a pilot resource set is determined by the measurement values ​​of multiple pilot resources in the pilot resource set. Specifically, the measurement value corresponding to each pilot group includes one or more of the following: an average or maximum value of the measurement values ​​of multiple pilot resources; or an average or sum of the first N measurement values ​​of multiple pilot resource measurement values ​​arranged in a preset order, where N is a positive integer.

[0119] For example, taking the measurement value of RSRP as an example, the network device configures multiple pilot resource sets (resourceSet) to the terminal device, each pilot resource set includes multiple pilot resources (resource), and the terminal device calculates the RSRP of each pilot resource and uses the maximum RSRP in the same pilot resource set as the RSRP of the pilot resource set.

[0120] For example, resourceSet#1 includes four pilot resources, resource#1, resource#2, resource#3, and resource#4. The terminal device calculates the RSRPs of resource#1, resource#2, resource#3, and resource#4 as RSRP1, RSRP2, RSRP3, and RSRP4, respectively. The terminal device compares the four RSRPs and determines that RSRP2 is the maximum value. RSRP2 is then used as the RSRP of resourceSet#1.

[0121] For example, taking the measurement value of RSRP as an example, the network device configures multiple pilot resource sets (resourceSet) to the terminal device, each pilot resource set includes multiple pilot resources (resource), and the terminal device calculates the RSRP of each pilot resource, compares the multiple RSRPs in the same pilot resource set, and arranges them in a preset order, takes the largest top N RSRPs, averages or sums them, and uses them as the RSRP of the pilot resource set.

[0122] For example, resourceSet#1 includes four pilot resources: resource#1, resource#2, resource#3, and resource#4. The terminal device calculates the RSRPs of resource#1, resource#2, resource#3, and resource#4 as RSRP1, RSRP2, RSRP3, and RSRP4, respectively. The four RSRPs are compared and sorted in a preset order (from large to small), and it is determined that RSRP1>RSRP2>RSRP4>RSRP3. Take N as 2, that is, take the average of the first two RSRPs (RSRP1 and RSRP2) to obtain RSRP*, and use RSRP* as the RSRP of resourceSet#1; or, sum them to obtain RSRP+, and use RSRP+ as the RSRP of resourceSet#1.

[0123] It is worth noting that the preset order can also be from small to large, or other arrangement orders, which is not limited in the embodiments of the present application.

[0124] Optionally, after calculating the RSRP of each pilot resource in a pilot resource set, the terminal device selects N pilot resources and averages or sums the RSRPs to serve as the RSRP of the pilot resource set. The N pilot resources selected from different pilot resource sets have the same number.

[0125] For example, if the RSRPs of resource#1 and resource#3 are averaged or summed in resourceSet#1, the RSRPs of resource#1 and resource#3 in resourceSet#2 are also averaged or summed in resourceSet#2.

[0126] It is worth noting that the value of N can be configured by the network device or determined by the terminal device, and is not limited in the embodiments of this application.

[0127] Optionally, after calculating the RSRP of each pilot resource in a pilot resource set, the terminal device averages or sums the RSRPs of pilot resources with the same number in different pilot resource sets as the RSRP of the pilot resource.

[0128] For example, resourceSet#1, resourceSet#2, and resourceSet#3 all include four pilot resources: resource#1, resource#2, resource#3, and resource#4. After calculating the RSRP for each pilot resource in each pilot resource set, the terminal device averages or sums the RSRPs of resource#1 in resourceSet#1, resource#1 in resourceSet#2, and resource#1 in resourceSet#3 to obtain the RSRP for resource#1. Alternatively, the terminal device averages or sums the RSRPs of resource#2 in resourceSet#1, resource#2 in resourceSet#2, and resource#2 in resourceSet#3 to obtain the RSRP for resource#2.

[0129] In another possible embodiment of the present application, when each pilot group corresponds to multiple pilot ports, determining the measurement value corresponding to each pilot group includes: the terminal device determines the measurement value of each pilot port in the multiple pilot ports corresponding to each pilot group.

[0130] As another example, the terminal device measures the measurement values ​​of one or more pilot ports according to one or more pilot ports in each pilot resource, and then determines the measurement value of the pilot resource according to the measurement values ​​of the one or more pilot ports.

[0131] It is understood that the measured value of the pilot resource is determined by the measured values ​​of multiple pilot ports in the pilot resource. Specifically, the measured value corresponding to each pilot group includes one or more of the following: the average or maximum value of the measured values ​​of multiple pilot ports; or the average or sum of the first N measured values ​​of multiple pilot ports arranged in a preset order, where N is a positive integer.

[0132] For example, taking the measurement value of RSRP as an example, the network device configures a pilot resource set (resourceSet) to the terminal device, which includes multiple pilot resources (resource), each pilot resource includes multiple pilot ports (port), and the terminal device calculates the RSRP of each pilot port and uses the maximum RSRP within the same pilot resource as the RSRP of the pilot resource.

[0133] For example, resource#1 includes four pilot ports: port#1, port#2, port#3, and port#4. The terminal device calculates the RSRPs of port#1, port#2, port#3, and port#4 as RSRP1, RSRP2, RSRP3, and RSRP4, respectively. The terminal device compares the four RSRPs and determines that RSRP2 is the maximum value. In this case, RSRP2 is used as the RSRP of resource#1.

[0134] For example, taking the measurement value of RSRP as an example, the network device configures a pilot resource set (resourceSet) to the terminal device, which includes multiple pilot resources (resource), and each pilot resource includes multiple pilot ports (port). The terminal device calculates the RSRP of each pilot port, compares the multiple RSRPs in the same pilot resource, and arranges them in a preset order. The largest top N RSRPs are averaged or summed as the RSRP of the pilot resource.

[0135] For example, resource#1 includes four pilot ports: port#1, port#2, port#3, and port#4. The terminal device calculates the RSRPs of port#1, port#2, port#3, and port#4 as RSRP1, RSRP2, RSRP3, and RSRP4, respectively. The four RSRPs are compared and sorted in a preset order (for example, from large to small), determining that RSRP1>RSRP2>RSRP4>RSRP3. Taking N as 2, that is, taking the average of the first two RSRPs (RSRP1 and RSRP2) to obtain RSRP*, RSRP* is used as the RSRP of resource1; alternatively, the sum is obtained to obtain RSRP+, and RSRP+ is used as the RSRP of resource#1.

[0136] Optionally, after calculating the RSRP of each pilot port in a pilot resource, the terminal device selects the RSRP of N pilot ports and averages or sums them as the RSRP of the pilot resource. The N pilot ports selected for different pilot resources have the same number.

[0137] For example, if the RSRPs of port#1 and port#3 are averaged or summed in resource#1, the RSRPs of port#1 and port#3 in resource#2 are also averaged or summed in resource#2.

[0138] Optionally, after calculating the RSRP of each pilot port in a pilot resource, the terminal device averages or sums the RSRPs of pilot ports with the same number in different pilot resources as the RSRP of the pilot port.

[0139] For example, resource#1, resource#2, and resource#3 in resourceSet#1 all include four pilot ports: port#1, port#2, port#3, and port#4. After calculating the RSRP for each pilot port in each pilot resource, the terminal device averages or sums the RSRPs of port#1 in resource#1, port#1 in resource#2, and port#1 in resource#3 to obtain the RSRP for port#1. Alternatively, the terminal device averages or sums the RSRPs of port#2 in resource#1, port#2 in resource#2, and port#2 in resource#3 to obtain the RSRP for port#2.

[0140] It is worth noting that the receiving beams used by the terminal device to receive pilot signals from different pilot resource sets, or different pilot resources, or different pilot ports can be the same or different, and this is not limited in the embodiments of the present application.

[0141] Step 303: The network device obtains the measurement value and index value of at least one pilot group among the M pilot groups. Accordingly, the terminal device reports the measurement value and index value of at least one pilot group among the M pilot groups to the network device.

[0142] The measurement value is used to represent the channel state information of the pilot packet.

[0143] As an example, when the pilot group is a pilot resource group, the measurement value of the pilot group is the measurement value of the pilot resource set, or the measurement value of the pilot group is the joint measurement value of pilot resources with the same index in multiple pilot resource sets. The terminal device reports the measurement value of each pilot resource set to the network device.

[0144] The following takes the example of a network device configuring four pilot resource sets, resourceSet#0, resourceSet#1, resourceSet#2, and resourceSet#3, to a terminal device, where each pilot resource set includes four pilot resources, resource#0, resource#1, resource#2, and resource#3, to illustrate how the terminal device reports the measurement value corresponding to each pilot group to the network device.

[0145] Example 1: The terminal device selects the same pilot resource in different pilot resource sets (for example, resource#0 in each pilot resource set) to perform RSRP calculation, and uses the RSRP corresponding to the pilot resource (for example, the RSRP of resource#0 in resourceSet#0 is RSRP0, the RSRP of resource#0 in resourceSet#1 is RSRP1, the RSRP of resource#0 in resourceSet#2 is RSRP2, and the RSRP of resource#0 in resourceSet#3 is RSRP3) as the RSRP of the corresponding pilot resource set, and reports it to the network device. That is, RSRP0 is the RSRP of resourceSet#0, RSRP1 is the RSRP of resourceSet#1, RSRP2 is the RSRP of resourceSet#2, and RSRP3 is the RSRP of resourceSet#3.

[0146] Example 2: The RSRP0 reported by the terminal device is the average value or sum of the RSRP corresponding to resource#0 of resourceSet#0, resource#0 of resourceSet#1, resource#0 of resourceSet#2, and resource#0 of resourceSet#3; RSRP1 is the average or sum of the RSRP measurement values ​​corresponding to resource#1 of resourceSet#0, resource#1 of resourceSet#1, resource#1 of resourceSet#2, and resource#1 of resourceSet#3; RSRP2 is the average or sum of the RSRP measurement values ​​corresponding to resource#2 of resourceSet#0, resource#2 of resourceSet#1, resource#2 of resourceSet#2, and resource#2 of resourceSet#3; RSRP3 is the average or sum of the RSRP measurement values ​​corresponding to resource#3 of resourceSet#0, resource#3 of resourceSet#1, resource#3 of resourceSet#2, and resource#3 of resourceSet#3.

[0147] Example 3: The RSRP0 reported by the terminal device is the average value or sum of the RSRPs corresponding to the four pilot resources resource#0, resource#1, resource#2, and resource#3 of resourceSet#0; RSRP1 is the average value or sum of the RSRPs corresponding to the four pilot resources resource#0, resource#1, resource#2, and resource#3 of resourceSet#1; RSRP2 is the average value or sum of the RSRPs corresponding to the four pilot resources resource#0, resource#1, resource#2, and resource#3 of resourceSet#2; RSRP3 is the average value or sum of the RSRPs corresponding to the four pilot resources resource#0, resource#1, resource#2, and resource#3 of resourceSet#3.

[0148] As another example, when the pilot group is a pilot port group, the measurement value of the pilot group is the measurement value of the pilot resource, and the terminal device reports the measurement value of at least one pilot group to the network device.

[0149] Taking the example of a network device configuring four pilot resources, resource#0, resource#1, resource#2, and resource#3, to a terminal device, where each pilot resource includes four pilot ports, port#0, port#1, port#2, and port#3, the specific example is similar to the above examples 1, 2, and 3 and will not be repeated here.

[0150] The index value is used to represent the pilot resource or pilot port associated with the measurement value.

[0151] For example, when a pilot group corresponds to multiple pilot resources, the index value can represent the pilot resource set or pilot resource associated with the measurement value; when a pilot group corresponds to multiple pilot resources, the index value can represent the pilot resource or pilot port associated with the measurement value.

[0152] In a possible implementation, the index value is associated with the measurement value of the pilot group, each index value is associated with one or more measurement values, or multiple index values ​​are associated with one measurement value.

[0153] For example, taking Example 1 in the above embodiment as an example, as shown in Table 1, the channel state information reference signal resource indicator (CSI-RS resource indicator, CRI) is an index value, and one index value is associated with multiple measurement values. CRI is 0, which identifies the four measurement values ​​of RSRP0, RSRP1, RSRP2, and RSRP3.

[0154] Table 1

[0155] For example, taking Example 2 in the above embodiment as an example, as shown in Table 2, one index value is associated with one measurement value. A CRI of 0 identifies RSRP0, a CRI of 1 identifies RSRP1, a CRI of 2 identifies RSRP2, and a CRI of 3 identifies RSRP3. Alternatively, the index value is related to the number of the pilot resource. As shown in Table 3, a CRI of N0 corresponds to the RSRP corresponding to resource#N0 of resourceSet#0, a CRI of N1 corresponds to the RSRP corresponding to resource#N1 of resourceSet#1, and so on. The values ​​of N0, N1, N2, and N3 can be the same or different.

[0156] Table 2

[0157] Table 3

[0158] For example, taking Example 3 in the above embodiment as an example, multiple index values ​​are related to the pilot resource number in the pilot resource set. As shown in Table 4, CRI is 0, 1, 2, and 3, then RSRP0 is the average value or sum of the RSRPs corresponding to resource#0, resource#1, resource#2, and resource#3 in resourceSet#0 (the sum is taken as an example in Table 4).

[0159] Table 4

[0160] In this application, a network device sends multiple pilot groups to a terminal device. Different pilot groups correspond to different simulated beams, and each pilot group in the multiple pilot groups corresponds to multiple pilot resources or multiple pilot ports. The terminal device calculates the measurement value of each pilot group based on the multiple pilot groups. The terminal device then reports the measurement value corresponding to at least one pilot group to the network device. Because different pilot groups have different simulated beams, different simulated beams can be measured and reported, thereby enabling the terminal device to perceive different simulated beams and improving the performance of multi-user system communications.

[0161] Step 304: The network device sends downlink signal spatial domain reception indication information to the terminal device based on the measurement value corresponding to at least one pilot group reported by the terminal device. Correspondingly, the terminal device receives the downlink signal spatial domain reception indication information from the network device.

[0162] The spatial reception indication information is used to indicate the receiving beam reference for the terminal device to receive the downlink signal.

[0163] As an example, the network device sends TCI information to the terminal device based on the measurement value corresponding to each pilot group, and the TCI information is associated with the identification information of the pilot group. Based on the TCI information, the terminal device determines the receiving beam of the terminal device. Specifically, different receiving beams are maintained for different analog beams, and the same receiving beam is maintained for the same analog beam and different digital beams. The identification information of the pilot group associated with the TCI can be the identification information of the pilot resource set (for example, resourceSet#0), or the identification information of the pilot resource (for example, resource#1), or the identification information of the pilot port (for example, port#2).

[0164] In a possible implementation, the TCI information is TCI-state, and the network device indicates the TCI-state via a TCI field in downlink control information (DCI).

[0165] For example, the size of the TCI field is 3 bits, which can specifically represent 8 different field values ​​(codepoints), where each field value corresponds to a TCI-state index, and the TCI-state index can uniquely identify a TCI-state.

[0166] In a possible embodiment of the present application, the spatial domain reception indication information includes a local index. The local index is used to indicate a pilot packet reported by a terminal device for reference in the spatial domain reception of the downlink signal.

[0167] As an example, a network device receives measurement values ​​of multiple pilot groups reported by a terminal device, and sends to the terminal device spatial reception indication information, in which the first local index is associated with the first pilot group reported by the terminal device, the second local index is associated with the second pilot group reported by the terminal device, and so on. One pilot group corresponds to one analog beam, or to multiple digital beams of one analog beam.

[0168] For example, a local index of 0 indicates that the downlink signal reception references the first pilot packet reported by the terminal device, and a local index of 1 indicates that the downlink signal reception references the second pilot packet reported by the terminal device.

[0169] In a possible embodiment, each TCI-state includes an index (tci-StateId) and two quasi-co-location information (QCL-Info). Each QCL-Info includes a cell field and a partial bandwidth (BWP) identifier, which is used to indicate which BWP in which cell the TCI-state is applied to. QCL-Info also includes a reference signal, indicating which reference signal resource forms a QCL relationship. The QCL relationship means that the two reference signal resources have the same spatial parameters. QCL-Info also includes qcl-Type, which is used to determine the same spatial parameters. qcl-Type can have four values, namely typeA, typeB, typeC, and typeD, where typeD indicates that the two reference signal resources have the same spatial reception parameter information, that is, the two beams have the same receiving beam.

[0170] In one possible implementation, the network device instructs the terminal device to determine the receive beam through TCI-state. The specific process includes configuring TCI-stste, activating TCI-state, and indicating TCI-state:

[0171] First, the network device configures eight TCI-states to the terminal device through radio resource control (RRC) signaling. Each of the eight TCI-states includes a QCL-Info of type D. It is understandable that the network device can also configure a TCI-state that does not include a QCL-info of type D, which is not limited in the embodiments of the present application.

[0172] Next, after configuring multiple TCI-states, the network device activates eight TCI-states through the medium access control element (MAC-CE). These eight TCI-states correspond one-to-one to the eight values ​​of the TCI field in the DCI. Figure 4 shows the structure of the MAC-CE with activated TCI-states. Fields T0 to T(N-2)×8+7 correspond to configured TCI-states with indices 0 to (N-2)×8+7, respectively. Each field is 1 bit long and has a value of 0 or 1. A field value of 1 indicates that the TCI-state is activated, while a field value of 0 indicates that the TCI-state is deactivated. Each MAC-CE can have eight activation fields with a value of 1, and the rest are all 0. The TCI-states corresponding to these eight fields with a value of 1 are the same as the eight TCI-states corresponding to the eight values ​​of the TCI field in the DCI. For example, the minimum TCI field value of 000 corresponds to the TCI-state with the smallest index activated in the MAC-CE.

[0173] It is worth noting that MAC-CE has other functions besides TCI-state activation, which are not described here.

[0174] Finally, the network device indicates a specific TCI-state through the TCI field in the DCI. For example, the value of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating that the beam adopts the TCI-state corresponding to 000. The reference signal contained in the QCL-Info of type D in the TCI-state is the channel state information reference signal (CSI-RS) with an index of #1, indicating that the beam is the same as the receive beam corresponding to the CSI-RS with an index of #1.

[0175] Among them, the receiving beam corresponding to the CSI-RS with index #1 is determined through terminal device measurement. Therefore, through the specific value of the TCI field, the terminal device can determine the corresponding receiving beam and use the corresponding receiving beam to receive data.

[0176] Optionally, during the beam management pilot measurement phase, the terminal device maintains two receiving beams for each analog beam. The first is a public receiving beam, that is, different analog beams are received using the same receiving beam. The second is a dedicated receiving beam, that is, a corresponding receiving beam is independently maintained for each analog beam. The receiving beams corresponding to different analog beams may be the same or different.

[0177] In one possible implementation, the network device indicates the receive beam set that the terminal device should adopt by checking whether the value of the pilot grouping information (e.g., pilot resource set identifier, pilot resource identifier, pilot port identifier, beam index identifier, etc.) is valid. For example, if the pilot grouping information associated with the TCI is a valid value and the pilot grouping information configured by the network device for the terminal device includes this value, the simulated beam-dedicated receive beam is adopted. If the pilot grouping information associated with the TCI is an invalid value, that is, the pilot grouping information configured by the network device for the terminal device does not include this value, a public receive beam is adopted.

[0178] In another possible implementation, the network device configures reservation indication information for the terminal device, where the reservation indication information is used to indicate the type of receive beam used by the terminal device. For example, 0 indicates using a common receive beam for reception, and 1 indicates using a dedicated receive beam for each analog beam for reception.

[0179] The above embodiment, using downlink transmission as an example, describes how a network device configures multiple pilot groups and spatial reception indication information for a terminal device. It will be appreciated that the specific implementation is similar in uplink transmission, where the transmit beam for the uplink transmission is indicated by a spatial relation. Similar to the TCI-state, the spatial relation is used to determine the transmit beam used by the terminal device.

[0180] In one possible implementation, a network device configures a spatial relation for a terminal device through RRC signaling. The spatial relation includes spatial relation identification information, cell identification information, pilot resources, path loss measurement reference signals, power control parameters, and other information. Pilot resources are used to indicate corresponding uplink beams. Uplink transmission uses spatial relation #1, and spatial relation #1 includes pilot resource #2, indicating that the transmit beam or receive beam used for the uplink transmission is the transmit beam or receive beam of pilot resource #2.

[0181] For example, when the pilot resource is SRS, it means that the transmission beam used for uplink transmission is the SRS transmission beam. For another example, when the pilot resource is SSB / CSI-RS, it means that the transmission beam used for uplink transmission is the SSB / CSI-RS reception beam.

[0182] It is understandable that network equipment can configure multiple spatial relationships for terminal devices and then activate one of the multiple spatial relationships through MAC-CE for data transmission. For example, the physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), SRS, etc. included in uplink transmission all require corresponding spatial relationships. The spatial relationship of PUCCH and SRS is indicated by MAC-CE signaling, while PUSCH will be associated with a specific SRS during transmission and will be transmitted using the SRS spatial relationship.

[0183] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the interaction between various network elements. It can be understood that in order to realize the above functions, each network element, such as a communication device, includes a structure and / or software module corresponding to the execution of each function. It should be easy for those skilled in the art to realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0184] An embodiment of the present application provides a beam management device, which includes: a transceiver, a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the computer program, the device is used to implement the beam processing method in the above embodiment.

[0185] An embodiment of the present application provides a communication device, which may be a terminal device or a chip, and may be used to execute the above method embodiment.

[0186] When the communication device is a terminal device, Figure 5 shows a simplified structural diagram of the terminal device. For ease of understanding and illustration, in Figure 5, a mobile phone is used as an example of the terminal device. As shown in Figure 5, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, as well as to control the terminal device, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for converting baseband signals into radio frequency signals and processing radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

[0187] When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, only one memory and processor are shown in Figure 5. In an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be set independently of the processor or integrated with the processor, and this is not limited in the embodiments of the present application.

[0188] In the embodiment of the present application, the antenna and radio frequency circuit with transceiver functions can be regarded as the transceiver unit of the terminal device, and the processor with processing function can be regarded as the processing unit of the terminal device.

[0189] As shown in Figure 5, the terminal device includes a transceiver unit 510 and a processing unit 520. The transceiver unit 510 may also be referred to as a transceiver, transceiver, or transceiver device. The processing unit 520 may also be referred to as a processor, processing board, processing module, or processing device. Optionally, the device in the transceiver unit 510 that implements the receiving function may be considered a receiving unit, and the device in the transceiver unit 510 that implements the transmitting function may be considered a transmitting unit. That is, the transceiver unit 510 includes a receiving unit and a transmitting unit. The transceiver unit may also be referred to as a transceiver, transceiver, or transceiver circuit. The receiving unit may also be referred to as a receiver, receiver, or receiving circuit. The transmitting unit may also be referred to as a transmitter, transmitter, or transmitting circuit.

[0190] It should be understood that FIG5 is merely an example and not a limitation, and the terminal device including the transceiver unit and the processing unit may not rely on the structure shown in FIG5.

[0191] When the communication device is a chip, the chip includes a transceiver unit and a processing unit, wherein the transceiver unit may be an input / output circuit or a communication interface; and the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip.

[0192] The present application also provides a communication device, which can be a network device or a chip. The communication device can be used to execute the above method embodiment. When the communication device is a network device, for example, it is a base station.

[0193] Figure 6 shows a simplified schematic diagram of a base station structure. The base station includes sections 610 and 620. Section 610 is primarily responsible for receiving and transmitting RF signals and converting RF signals to baseband signals; section 620 is primarily responsible for baseband processing and base station control. Section 610 can be commonly referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver. Section 620 is typically the base station's control center, often referred to as a processing unit, responsible for controlling the base station to execute the network device-side processing operations described in the aforementioned method embodiments.

[0194] The transceiver unit in section 610, also known as a transceiver or transceiver, includes an antenna and a radio frequency unit, with the radio frequency unit primarily responsible for radio frequency processing. Alternatively, the device in section 610 that implements the receiving function can be considered a receiving unit, and the device that implements the transmitting function can be considered a transmitting unit. That is, section 610 includes both a receiving unit and a transmitting unit. The receiving unit can also be referred to as a receiver, receiver, or receiving circuit, and the transmitting unit can be referred to as a transmitter, transmitter, or transmitting circuit.

[0195] Section 620 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If multiple boards are present, the boards may be interconnected to enhance processing capabilities. As an optional implementation, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may simultaneously share one or more processors.

[0196] It should be understood that FIG6 is only an example and not a limitation, and the network device including the transceiver unit and the processing unit may not rely on the structure shown in FIG6.

[0197] 7 is a schematic diagram of the structure of a chip 700 provided in an embodiment of the present application. The chip 700 includes one or more (including two) processors 710 and a communication interface 730.

[0198] Optionally, the chip 700 further includes a memory 740, which may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 710. A portion of the memory 740 may also include a non-volatile random access memory (NVRAM).

[0199] In some embodiments, the memory 740 stores the following elements, execution modules or data structures, or a subset thereof, or an extended set thereof.

[0200] In the embodiment of the present application, the corresponding operation is performed by calling the operation instruction stored in the memory 740 (the operation instruction may be stored in the operating system).

[0201] The processor 710 controls processing operations of either the first terminal or the base station. The processor 710 may also be referred to as a central processing unit (CPU).

[0202] Memory 740 may include read-only memory and random access memory, and provides instructions and data to processor 710. A portion of memory 740 may also include NVRAM. For example, in an application, memory 740, communication interface 730, and memory 740 are coupled together via bus system 720. Bus system 720 may include not only a data bus but also a power bus, a control bus, and a status signal bus. However, for clarity, various buses are collectively labeled as bus system 720 in FIG. 7 .

[0203] The methods disclosed in the above embodiments of the present application can be applied to or implemented by the processor 710. The processor 710 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the processor 710 or by software instructions. The above processor 710 can be a general-purpose processor, a digital signal processor (DSP), an ASIC, a field-programmable gate array (FPGA), or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory 740 , and the processor 710 reads the information in the memory 740 and completes the steps of the above method in combination with its hardware.

[0204] The above communication unit may be a communication interface of the device, used to receive signals from other devices. For example, when the device is implemented as a chip, the communication unit is a communication interface of the chip used to receive or send signals from other chips or devices.

[0205] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a computer, the computer is enabled to implement the above method embodiment.

[0206] The embodiment of the present application also provides a computer program product comprising instructions, which, when executed by a computer, enables the computer to implement the above method embodiment.

[0207] The explanation of the relevant contents and beneficial effects of any of the communication devices provided above can be referred to the corresponding method embodiments provided above, and will not be repeated here.

[0208] In an embodiment of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application. As long as it is possible to communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call a program and execute the program.

[0209] In addition, various aspects or features of the present application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application covers computer programs that can be accessed from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0210] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0211] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAMbus RAM (DR RAM).

[0212] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) is integrated into the processor.

[0213] It should be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0214] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0215] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0216] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0217] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0218] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0219] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0220] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A beam management method, characterized in that: The method comprises: Sending M pilot groups to the terminal device, each of the M pilot groups corresponds to a plurality of pilot resources or a plurality of pilot ports, and M is a positive integer; A measurement value and an index value of at least one pilot group among the M pilot groups are obtained, wherein the measurement value is used to characterize the channel state information of the pilot group; and the index value is used to characterize the pilot resource or the pilot port associated with the measurement value.

2. The method according to claim 1, characterized in that Each of the index values ​​is associated with one or more of the measurement values, or multiple of the index values ​​are associated with one measurement value.

3. The method according to claim 1, characterized in that In a case where each of the pilot groups corresponds to a plurality of pilot resources, the obtaining of the measurement value corresponding to each of the pilot groups includes: A measurement value of each of the pilot resources in the plurality of pilot resources corresponding to each of the pilot groups is obtained.

4. The method according to claim 3, characterized in that The measurement value corresponding to each pilot group includes one or more of the following: an average value or a maximum value of the measured values ​​of the plurality of pilot resources; or The multiple pilot resource measurement values ​​are arranged in a preset order, wherein the average value or the sum value of the first N measurement values ​​are arranged, and N is a positive integer.

5. The method according to claim 1, characterized in that In the case where each of the pilot groups corresponds to multiple pilot ports, obtaining the measurement value corresponding to each of the pilot groups includes: A measurement value of each of the pilot ports among the multiple pilot ports corresponding to each of the pilot groups is obtained.

6. The method according to claim 5, characterized in that The measurement value corresponding to each pilot group includes one or more of the following: an average value or a maximum value of the measured values ​​of the plurality of pilot ports; or The multiple pilot port measurement values ​​are arranged in a preset order, wherein the first N measurement values ​​are average values ​​or sum values, where N is a positive integer.

7. The method according to claim 5 or 6, characterized in that: When the pilot group corresponds to L pilot ports and L is an even number, every two pilot ports form a group, including: The kth pilot port and the (k+N / 2)th pilot port correspond to one group, where k is a positive integer; Or, the kth pilot port and the (k+1)th pilot port correspond to one group, and k is an odd number.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: Send spatial domain reception indication information of a downlink signal to the terminal device, wherein the spatial domain reception indication information is associated with at least one of the pilot groups.

9. The method according to claim 8, characterized in that The indication information includes a local index, and the local index is used to indicate the pilot group referenced by the downlink signal spatial domain reception.

10. A beam management method, characterized in that: The method comprises: Receive M pilot groups from a network device, each of the M pilot groups corresponds to a plurality of pilot resources or a plurality of pilot ports, and M is a positive integer; Determine a measurement value of at least one pilot group among the M pilot groups, where the measurement value is used to characterize channel state information of the pilot group; Reporting a measurement value and an index value of at least one pilot group among the M pilot groups to the network device, wherein the index value is used to characterize the pilot resource or the pilot port associated with the measurement value.

11. The method according to claim 10, characterized in that Each of the index values ​​is associated with one or more of the measurement values, or multiple of the index values ​​are associated with one measurement value.

12. The method according to claim 10, characterized in that In the case where each pilot group corresponds to a plurality of pilot resources, obtaining a measurement value of each pilot group includes: Determine a measurement value of each of the pilot resources in the plurality of pilot resources corresponding to each of the pilot groups.

13. The method according to claim 12, characterized in that The measurement value corresponding to each pilot group includes one or more of the following: an average value or a maximum value of the measured values ​​of the plurality of pilot resources; or The multiple pilot resource measurement values ​​are arranged in a preset order, wherein the average value or the sum value of the first N measurement values ​​are arranged, and N is a positive integer.

14. The method according to claim 10, characterized in that In the case where each of the pilot groups corresponds to a plurality of pilot ports, determining the measurement value of each of the pilot groups includes: Determine a measurement value of each of the pilot ports in the plurality of pilot ports corresponding to each of the pilot groups.

15. The method according to claim 14, characterized in that The measurement value corresponding to each pilot group includes one or more of the following: an average value or a maximum value of the plurality of pilot port measurement values; or The average value or the sum value of the first N maximum measurement values ​​of the multiple pilot port measurement values, where N is a positive integer.

16. The method according to claim 14 or 15, characterized in that When the pilot group corresponds to L pilot ports and L is an even number, every two pilot ports form a group, including: The kth pilot port and the (k+N / 2)th pilot port correspond to one group, where k is a positive integer; Or, the kth pilot port and the (k+1)th pilot port correspond to one group, and k is an odd number.

17. The method according to any one of claims 10 to 16, characterized in that: The method further comprises: Acquire spatial domain reception indication information of a downlink signal, where the spatial domain reception indication information is associated with at least one of the pilot groups.

18. The method according to claim 17, characterized in that The spatial domain reception indication information includes a local index, and the local index is used to indicate the pilot group referenced by the spatial domain reception of the downlink signal.

19. A communication device, characterized in that: The device comprises: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; When the processor executes the computer program, the device is used to implement the method according to any one of claims 1 to 9, or the method according to any one of claims 10 to 18.

20. A chip, characterized in that: The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the method according to any one of claims 1 to 9, or the method according to any one of claims 10 to 18; The communication interface is used to communicate with other modules outside the chip.

21. A computer-readable storage medium, characterized in that: The method comprises computer instructions. When the computer instructions are executed on a base station, the base station executes the method according to any one of claims 1 to 9, or executes the method according to any one of claims 10 to 18.

22. A communication device, characterized in that: The method comprises a unit for implementing the method according to any one of claims 1 to 9, or a unit for implementing the method according to any one of claims 10 to 18.

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