Communication method and apparatus, computer-readable storage medium, and computer program product

Abstract

The present application provides a communication method and apparatus, a computer-readable storage medium, and a computer program product. The communication method comprises: receiving at least one reference signal from an antenna port array; and on the basis of a measurement result of the at least one reference signal, sending first information, wherein the measurement result of the at least one reference signal is used for representing channel state information of the antenna port array, the first information indicates K antenna port groups in the antenna port array, each antenna port group comprises a plurality of antenna ports, and the plurality of antenna ports in each antenna port group satisfy spatial stability. The technical solution of the present application provides a solution for how to determine antenna port groups in the case of non-stable space.

Description

Communication methods and apparatus, computer-readable storage media, computer program products

[0001] This application claims priority to Chinese Patent Application No. 202410985995.5, filed on July 22, 2024, entitled "Communication Method and Apparatus, Computer-Readable Storage Medium, Computer Program Product", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a communication method and apparatus, a computer-readable storage medium, and a computer program product. Background Technology

[0003] In wireless communication systems, network devices, such as base stations, support joint precoding using multiple antenna panels, each employing a dual-polarized antenna. During codebook feedback, the number of antenna panels Ng and the size (N1, N2) of each panel are pre-configured by the base station. Assuming the total number of antenna ports at the base station is P, after the terminal device measures the channel state of each antenna panel, it determines the Discrete Fourier Transform (DFT) vector v used by each panel. i Let i be the index of the antenna panel; then determine the phase compensation coefficients between the antenna panels. and the phase compensation coefficient between polarization directions When the number of antenna panels Ng = 4, the codebook for joint precoding is as shown in formula (1):

[0004] As the number of antenna ports in base stations increases, the size of the antenna port array also grows. For terminal devices located near the base station, wireless signals emitted from different antenna ports on the base station side may travel along different propagation paths to reach the terminal device, resulting in a spatially non-stationary channel between the base station and the terminal device. Therefore, terminal devices can consider precoding based on antenna port groups.

[0005] However, in the existing technology, the number of antenna port groups and the number of antenna ports within a group are configured by the base station, which cannot match the antenna port grouping under spatial non-stationary characteristics. Summary of the Invention

[0006] This application provides a communication method and apparatus, a computer-readable storage medium, and a computer program product, and provides a scheme for achieving spatial stability and matching the antenna port group.

[0007] This application provides the following technical solutions:

[0008] In a first aspect, a communication method is provided, comprising: receiving at least one reference signal from an antenna port array; transmitting first information based on a measurement result of the at least one reference signal; wherein the measurement result of the at least one reference signal is used to characterize channel state information of the antenna port array, and the first information indicates K antenna port groups in the antenna port array, each antenna port group including multiple antenna ports, wherein the multiple antenna ports in each antenna port group satisfy spatial stationarity, and K is a positive integer.

[0009] Optionally, the channel parameters of multiple antenna ports in each antenna port group are the same, and the channel parameters of the antenna ports are determined based on the measurement results of the at least one reference signal.

[0010] Optionally, multiple antenna ports in each antenna port group are positioned adjacent to each other in the antenna port array.

[0011] Optionally, the outer contour shape of the array formed by multiple antenna ports in each antenna port group is rectangular.

[0012] Optionally, receiving at least one reference signal from the antenna port array includes: receiving a reference signal from the antenna port array; or, receiving reference signals from multiple antenna port subarrays in the antenna port array, each antenna port subarray including multiple ports, and each antenna port group including at least one antenna subarray.

[0013] Optionally, the first information includes at least one of the following: the identifier of each antenna port in each antenna port group; or the identifier of each antenna port subarray in each antenna port group; or the identifier of the reference signal of each antenna port subarray.

[0014] Optionally, the first information further indicates codebook feedback parameters, which include at least one of the following: the identifier of the beamforming vector corresponding to each antenna port group; the phase compensation coefficient between antenna port group i and antenna port group 0, where i takes the value [1, K-1]; and the phase compensation coefficient between polarization directions within each antenna port group.

[0015] Optionally, before receiving at least one reference signal from the antenna port array, the method further includes receiving configuration parameters for configuring the antenna port array and the at least one reference signal.

[0016] Optionally, the configuration parameters include at least one of the following: the size of the antenna port array; or, the size of a plurality of antenna port subarrays in the antenna port array; or, a reference signal, the number of ports of the reference signal being equal to the number of antenna ports of the antenna port array; or, a plurality of reference signals, the number of ports of the reference signals being equal to the number of antenna ports of the corresponding antenna port subarray in the at least one antenna port subarray.

[0017] Secondly, this application also discloses a communication method, the communication method comprising: transmitting at least one reference signal through an antenna port array; receiving first information, the first information being determined based on measurement results of the at least one reference signal; wherein the measurement results of the at least one reference signal are used to characterize channel state information of the antenna port array, the first information indicating K antenna port groups in the antenna port array, each antenna port group including multiple antenna ports, the multiple antenna ports in each antenna port group satisfying spatial stationarity, and K being a positive integer.

[0018] Optionally, the channel parameters of multiple antenna ports in each antenna port group are the same, and the channel parameters of the antenna ports are determined based on the measurement results of the at least one reference signal.

[0019] Optionally, multiple antenna ports in each antenna port group are positioned adjacent to each other in the antenna port array.

[0020] Optionally, the array formed by multiple antenna ports in each antenna port group is rectangular in shape.

[0021] Optionally, transmitting multiple reference signals through the antenna port array includes: transmitting one reference signal through the antenna port array; or, transmitting multiple reference signals through multiple antenna port subarrays in the antenna port array, each antenna port subarray including multiple ports, and each antenna port group including at least one antenna subarray.

[0022] Optionally, before transmitting multiple reference signals via the antenna port array, the method further includes transmitting configuration parameters for configuring the antenna port array and the at least one reference signal.

[0023] Thirdly, this application also discloses a communication device, comprising: a communication module for receiving at least one reference signal from an antenna port array; the communication module is further configured to transmit first information based on a measurement result of the at least one reference signal; wherein the measurement result of the at least one reference signal is used to characterize channel state information of the antenna port array, and the first information indicates K antenna port groups in the antenna port array, each antenna port group including multiple antenna ports, wherein the multiple antenna ports in each antenna port group satisfy spatial non-stationarity, and K is a positive integer.

[0024] Fourthly, this application also discloses a communication device, comprising: a communication module for transmitting at least one reference signal through an antenna port array; the communication module is further configured to receive first information, the first information being determined based on measurement results of the at least one reference signal; wherein the measurement results of the at least one reference signal are used to characterize channel state information of the antenna port array, the first information indicating K antenna port groups in the antenna port array, each antenna port group including multiple antenna ports, the multiple antenna ports in each antenna port group satisfying spatial stationarity, and K being a positive integer.

[0025] Fifthly, a computer-readable storage medium is provided having a computer program stored thereon, the computer program being executed by a processor to perform any one of the methods provided in the first or second aspect.

[0026] In a sixth aspect, a communication device is provided, including a memory and a processor, wherein the memory stores a computer program executable on the processor, and the processor executes the computer program to perform any of the methods provided in the first aspect.

[0027] In a seventh aspect, a communication device is provided, including a memory and a processor, wherein the memory stores a computer program executable on the processor, and the processor executes the computer program to perform any of the methods provided in the second aspect.

[0028] Eighthly, a computer program product is provided, on which a computer program is stored, the computer program being executed by a processor to perform any one of the methods provided in the first or second aspect.

[0029] A ninth aspect provides a communication system comprising a communication device for performing the method described in the first aspect and a communication device for performing the method described in the second aspect.

[0030] In a tenth aspect, embodiments of this application also provide a chip (or data transmission device) on which a computer program is stored, and when the computer program is executed by the chip, the steps of the above method are implemented.

[0031] Eleventhly, embodiments of this application also provide a system chip for use in a terminal. The chip system includes at least one processor and an interface circuit. The interface circuit and the at least one processor are interconnected via a line. The at least one processor is used to execute instructions to perform any one of the methods provided in the first or second aspect.

[0032] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0033] In the technical solution of this application, the terminal device can send first information based on the measurement results of at least one reference signal. Since the measurement results of the reference signal can be used to characterize the channel state information of the antenna port array, the terminal device can determine the antenna port group that satisfies spatial stability and indicate K antenna port groups in the antenna port array through the first information to achieve spatial stability matching with the antenna port group; thereby assisting the network device in selecting the antenna port with better channel state to communicate with the terminal device and improve communication quality.

[0034] Furthermore, in the technical solution of this application, the channel parameters of multiple antenna ports in each antenna port group are identical, and the channel parameters of the antenna ports are determined based on the measurement results of at least one reference signal. The terminal device divides the antenna port groups by the channel parameters of the antenna ports, so that multiple antenna ports in the same antenna port group have the same channel parameters, thereby ensuring the stability of communication when the network device uses the antenna port group for communication. Attached Figure Description

[0035] Figure 1 is an interactive flowchart of a communication method provided in an embodiment of this application;

[0036] Figure 2 is a schematic diagram of an antenna port array provided in an embodiment of this application;

[0037] Figure 3 is an interactive flowchart of another communication method provided in an embodiment of this application;

[0038] Figure 4 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0039] Figure 5 is a schematic diagram of the hardware structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0040] The communication systems applicable to the embodiments of this application include, but are not limited to, Long Term Evolution (LTE) systems, 5th-generation (5G) systems, New Radio (NR) systems, and future evolution systems or multiple converged communication systems. The 5G system can be a non-standalone (NSA) 5G system or a standalone (SA) 5G system. The technical solutions of this application are also applicable to different network architectures, including but not limited to relay network architectures, dual-connectivity architectures, and vehicle-to-everything (V2X) communication architectures.

[0041] This application primarily relates to communication between terminal devices and network devices. Specifically:

[0042] The network device in this application embodiment can also be called an access network device, for example, it can be a base station (BS) (also called a base station device). A network device is a device deployed in a radio access network (RAN) to provide wireless communication functions. For example, in second-generation (2G) networks, the equipment providing base station functionality includes base transceiver stations (BTS); in third-generation (3G) networks, it includes nodes (NodeB); in fourth-generation (4G) networks, it includes evolved nodes (eNB); in wireless local area networks (WLANs), the equipment providing base station functionality is access points (APs); and in NR, the equipment providing base station functionality includes next-generation node base stations (gNBs) and further evolved nodes (ng-eNBs). gNBs and terminal devices communicate using NR technology, while ng-eNBs and terminal devices communicate using evolved universal terrestrial radio access (E-UTRA) technology. Both gNBs and ng-eNBs can connect to the 5G core network. The network devices in this application embodiment also include devices that provide base station functions in future new communication systems.

[0043] In this application, "terminal equipment" can refer to various forms of access terminals, user units, user stations, mobile stations, mobile stations (MS), remote stations, remote terminals, mobile devices, user terminals, wireless communication equipment, user agents, or user devices. Terminal equipment can also be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), handheld devices with wireless communication capabilities, computing devices, or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal equipment in future 5G networks, or terminal equipment in future evolved Public Land Mobile Networks (PLMNs), etc. This application does not limit the scope of these terms. Terminal equipment can also be called user equipment (UE), terminal, etc.

[0044] As described in the background section, in the prior art, the number of antenna port groups and the number of antenna ports within a group are configured by the base station and cannot match the antenna port grouping under spatial non-stationary characteristics.

[0045] In this embodiment, the terminal device can send first information based on the measurement results of at least one reference signal. Since the measurement results of the reference signal can be used to characterize the channel state information of the antenna port array, the terminal device can determine the antenna port group that satisfies spatial stationarity and indicate K antenna port groups in the antenna port array through the first information; thereby assisting the network device in selecting the antenna port with better channel state to communicate with the terminal device and improve communication quality.

[0046] First, some of the terms used in the embodiments of this application will be introduced to facilitate understanding by those skilled in the art.

[0047] The antenna port array referred to in the embodiments of this application may also be called an antenna assembly, beam set, antenna array, antenna panel, antenna panel group, antenna panel collection, logical entity, entity, or antenna entity, etc. The size of the antenna port array refers to the number of antenna ports in the one-dimensional or two-dimensional antenna port array.

[0048] The antenna port group referred to in the embodiments of this application may also be called an antenna group, an antenna port set, etc.

[0049] In this application, the term "antenna port subarray" refers to an antenna port array divided according to a certain size. An antenna port subarray can be a portion of an antenna port array. Antenna port subarrays can also be called antenna subarrays, antenna port arrays, beamsets, etc. The size of an antenna port subarray refers to the number of antenna ports in the one-dimensional or two-dimensional antenna port subarray.

[0050] For example, the size of the antenna port array is (M, N), which means that the number of ports in the antenna port array is M in one direction and N in the other direction; the size of the antenna port subarray is (X, Y), which means that the number of ports in the antenna port subarray is X in one direction and Y in the other direction, where X is less than M, Y is less than N, and M and N are positive integers.

[0051] For example, regarding the relationship between antenna port arrays, antenna port groups, and antenna port subarrays, an antenna port array includes at least one antenna port group, and each antenna port group may include at least one antenna port subarray.

[0052] In this embodiment, the reference signal can be a downlink reference signal, specifically a Channel State Information Reference Signal (CSI-RS), a Cell-specific Reference Signal (CRS), or other downlink reference signals used for CSI measurement.

[0053] In this embodiment, the antenna port array is a very large-scale antenna array with a large number of antenna ports. The range of the near-field region of the antenna port array is also gradually becoming significant, and the terminal device can perform near-field communication with the network device within this region.

[0054] The embodiments of this application are mainly used in near-field communication scenarios. The main application scenarios of near-field communication include, but are not limited to: near-field multi-terminal device communication, near-field positioning and sensing (distance-aware channels), near-field wireless power transfer, near-field integrated sensing design, physical layer security, etc.

[0055] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0056] Referring to Figure 1, the method provided in this application specifically includes the following steps:

[0057] Step 101: The network device transmits at least one reference signal through the antenna port array. Correspondingly, the terminal device receives at least one reference signal from the antenna port array. The network device provides communication services to the terminal device through the antenna port array.

[0058] Specifically, the terminal device can measure at least one reference signal and obtain the measurement result of at least one reference signal. The measurement result of at least one reference signal can be used to characterize the channel state information (CSI) of the antenna port array, or in other words, the measurement result of at least one reference signal can characterize the channel quality of the antenna port array.

[0059] The measurement result of the reference signal may include at least one of the following:

[0060] Reference Signal Receiving Power (RSRP), Signal to Interference & Noise Ratio (SINR), Signal-to-Noise Ratio (SNR), Signal to Interference Ratio (SIR), Reference Signal Receiving Quality (RSRQ), Channel Quality Indicator (CQI), Received Signal Strength Indication (RSSI), Carrier to Interference Ratio (CIR), Transmission Delay, and Reception Time, etc.

[0061] Step 102: The terminal device sends first information to the network device based on the measurement results of at least one reference signal. Accordingly, the network device receives the first information.

[0062] In this embodiment, the first information can indicate K antenna port groups in the antenna port array. Each antenna port group includes multiple antenna ports, and the multiple antenna ports in each antenna port group satisfy spatial stationarity. In other words, the channel characteristics of the multiple antenna ports in each antenna port group are consistent. Here, consistent channel characteristics among multiple antenna ports means that the channel characteristics of the multiple antenna ports are the same or similar (i.e., the same within a certain error range).

[0063] For the terminal equipment, it can determine K antenna port groups based on the measurement results of the reference signal and report them through the first information.

[0064] For example, the terminal device can select one or more reference signals with the best measurement results, determine one or more antenna ports to transmit the one or more reference signals, and determine K antenna port groups based on the positions of the one or more antenna ports in the antenna port array.

[0065] For example, the terminal device can select one or more reference signals whose measurement results meet preset conditions, and determine one or more antenna ports to transmit the reference signals, and determine K antenna port groups based on the positions of the one or more antenna ports in the antenna port array.

[0066] In this embodiment, the terminal device determines the antenna port group that satisfies spatial stability by measuring the reference signal, and indicates K antenna port groups in the antenna port array by the first information; thereby assisting the network device in selecting the antenna port with better channel status to communicate with the terminal device and improve communication quality.

[0067] It should be noted that the sequence number of each step in this embodiment does not represent a limitation on the execution order of each step.

[0068] It is understood that, in specific implementations, the communication method can be implemented using a software program, which runs in a processor integrated within the chip or chip module. The method can also be implemented using a combination of software and hardware; this application does not impose any restrictions.

[0069] In a non-limiting embodiment, the multiple antenna ports in each antenna port group satisfy at least one of the following conditions:

[0070] Condition 1: The channel parameters of multiple antenna ports in each antenna port group are the same, and the channel parameters of the antenna ports are determined based on the measurement results of the at least one reference signal.

[0071] Condition 2: Multiple antenna ports in each antenna port group are adjacent in the antenna port array.

[0072] Condition 3: The outer contour of the array formed by multiple antenna ports in each antenna port group is rectangular.

[0073] Condition 4: The number of antenna ports in each antenna port group can be the same or different.

[0074] In condition 1, the channel parameters of the antenna port can be at least one of the following: the received power of the reference signal transmitted by the antenna port, the average time delay, the frequency offset, and the Doppler offset. The channel parameters of the antenna port can characterize the channel quality of the antenna port. By making the channel parameters identical among multiple antenna ports in each antenna port group, spatial stationarity can be satisfied among multiple antenna ports in each antenna port group.

[0075] In other words, when determining the antenna port group, the terminal device considers grouping multiple ports with the same channel parameters into the same antenna port group.

[0076] For example, the channel parameter is the received power of the reference signal. The received power of the reference signal transmitted by port 1 is RSRP1, and the received power of the reference signal transmitted by port 2 is RSRP2. If the values ​​of RSRP1 and RSRP2 are the same, or the difference between the values ​​of RSRP1 and RSRP2 is less than a preset threshold, it means that the channel parameters of port 1 and port 2 are the same.

[0077] For example, when the channel parameter is the received power of the reference signal, the channel parameter can be obtained directly from the measurement results of the reference signal.

[0078] For example, when the channel parameter is the average delay, the channel parameter can be calculated from the transmission delay of the reference signal in the measurement results of the reference signal. For instance, if port 1 transmits the same reference signal four times at different times, and the terminal device measures the reference signal four times to obtain four measurement results, then the average delay of port 1 is the average of the four transmission delays in the four measurement results.

[0079] In condition 2, since the probability of spatial stability between adjacent antenna ports is relatively high, the terminal device considers dividing multiple adjacent ports in the antenna port array into the same antenna port group when determining the antenna port group.

[0080] Specifically, each port has a position in the antenna port array. Two ports are adjacent in the antenna port array if they are adjacent in either the row or column direction. Referring to Figure 2, the antenna port array has dimensions (M, N) and the number of ports is M×N. Taking port 22 as an example, port 22 is adjacent to ports 21 and 23 in the row direction, and adjacent to ports 12 and 32 in the column direction.

[0081] In condition 3, the rectangular shape of the outer contour of the antenna port group indicates that the number of ports in the row direction is different from the number of ports in the column direction.

[0082] For example, referring to Figure 2, port group 201 includes 8 ports: port 34, port 35, port 36, port 37, port 44, port 45, port 46, and port 47. Port group 201 has 4 ports in the row direction and 2 ports in the column direction.

[0083] In this embodiment, when determining the antenna port group, the terminal device first selects several antenna ports according to the measurement results of the reference signal, and then forms K port groups according to at least one of the above conditions 1 to 4.

[0084] In a non-limiting embodiment, please refer to Figure 3, which illustrates the flow of a communication method.

[0085] In step 301, the network device sends configuration parameters to the terminal device. Correspondingly, the terminal device receives the configuration parameters. These configuration parameters (also referred to as codebook configuration parameters) are used to configure the antenna port array and at least one reference signal.

[0086] In step 302, the network device transmits at least one reference signal through the antenna port array. Specifically, the network device may transmit one or more reference signals.

[0087] In one specific implementation, the network device transmits a reference signal through an antenna port array; that is, all ports in the antenna port array transmit the same reference signal.

[0088] Accordingly, the configuration parameters may include at least one of the following:

[0089] The dimensions of the antenna port array;

[0090] A reference signal is transmitted through a port number equal to the number of antenna ports in the antenna port array.

[0091] In this embodiment, the network device transmits a reference signal through an antenna port array. Since the reference signal has two polarization directions, the number of ports transmitting the reference signal is 2×M×N, where (M, N) is the size of the antenna port array. Accordingly, the terminal device needs to measure the channel quality of all antenna ports in the antenna port array.

[0092] In another specific implementation, the network device transmits multiple reference signals through an antenna port subarray, where one antenna port subarray transmits one reference signal and different antenna port subarrays transmit different reference signals.

[0093] Accordingly, the configuration parameters may include at least one of the following:

[0094] The dimensions of multiple antenna port subarrays in an antenna port array;

[0095] Multiple reference signals are used, and the number of ports transmitting the reference signals is equal to the number of antenna ports in the corresponding antenna port subarray of at least one antenna port subarray.

[0096] In this embodiment, the network device transmits multiple reference signals through multiple antenna port subarrays. Since the reference signals have two polarization directions, the number of ports transmitting each reference signal is 2×X×Y, where (X, Y) is the size of the antenna port subarray. Correspondingly, the terminal device only measures the channel quality of the antenna port subarrays.

[0097] Specifically, the terminal device measures the channel quality of the antenna port subarray to obtain the measurement results of the antenna port subarray. The measurement results of the antenna port subarray can be represented by the measurement results of the reference signal transmitted by the antenna port subarray.

[0098] Specifically, the antenna port group determined by the terminal device may include at least one antenna subarray. When determining the antenna port group, the terminal device first selects several antenna port subarrays according to the measurement results of the antenna port subarrays, and then forms K port groups according to at least one of the conditions 1 to 4 above.

[0099] Compared to the terminal device measuring the channel quality of all antenna ports in the antenna port array, the terminal device in this embodiment can reduce measurement overhead by measuring the antenna port subarray.

[0100] In step 303, the terminal device calculates the codebook based on the measurement results of at least one reference signal.

[0101] Specifically, the structure of the precoded codebook calculated by the terminal device is shown in formula (2):

[0102] Where (M, N) are the dimensions of the antenna port array, v i It is the beamforming vector of the i-th antenna port group. It is the phase compensation coefficient between antenna port group i and antenna port group 0. It is the phase compensation coefficient between polarization directions within the antenna port group, where i takes the value [1, K], and K represents the number of antenna port groups.

[0103] It should be noted that the phase compensation coefficient between antenna port group i and antenna port group 0... Phase compensation coefficient between polarization directions within the antenna port group The calculation can be performed according to existing calculation methods, and this application does not impose any restrictions on this.

[0104] In step 304, the terminal device sends first information to the network device. Accordingly, the network device receives the first information.

[0105] In one specific implementation, the first information includes at least one of the following:

[0106] The identifier of each antenna port in each antenna port group;

[0107] The identifier of each antenna port subarray in each antenna port group;

[0108] The reference signal identifier for each antenna port subarray.

[0109] Since different antenna port subarrays transmit different reference signals, the antenna port subarrays can be indirectly indicated by the identification of the reference signals.

[0110] For example, in the case where a network device transmits a reference signal through an antenna port array, the first information may include the identifier of each antenna port in each antenna port group.

[0111] For example, when a network device transmits multiple reference signals through multiple antenna port subarrays, the first information may include the identifier of each antenna port subarray in each antenna port group, and / or the identifier of the reference signal transmitted by each antenna port subarray. Furthermore, when a network device transmits multiple reference signals through multiple antenna port subarrays, the first information may also include the identifier of each antenna port in each antenna port group.

[0112] Furthermore, the first information also indicates the codebook feedback parameters. The codebook feedback parameters can indicate the codebook shown in the aforementioned formula (2).

[0113] Specifically, the codebook feedback parameters include at least one of the following:

[0114] The identifier of the beamforming vector corresponding to each antenna port group, wherein the beamforming vector is transmitted by the corresponding antenna port group;

[0115] The phase compensation coefficient of antenna port group i relative to antenna port group 0, where i takes the value [1, K-1].

[0116] Phase compensation coefficients for the first polarization direction relative to the second polarization direction within each antenna port group.

[0117] Each beamforming vector represents a beam, and multiple antenna ports superimpose wireless signals through the corresponding beamforming vectors, which can improve the directivity of the wireless signal.

[0118] The phase compensation coefficient between antenna port group i and antenna port group 0 represents the phase offset between the reference signal transmitted by antenna port group i and the reference signal transmitted by antenna port group 0. By using the phase compensation coefficient between antenna port groups, the wireless signals between antenna port groups can be phase-aligned at the receiving end, thereby improving the receiving power of the wireless signal.

[0119] The phase compensation coefficient between the first polarization direction and the second polarization direction in the antenna port group represents the phase offset value between the two polarization directions of the antenna port group, so that the wireless signals between different polarization directions of the antenna port group are phase aligned at the receiving end, thereby improving the receiving power of the wireless signal.

[0120] For terminal devices, the codebook feedback for the antenna port group can be achieved through the embodiments of this application.

[0121] For network devices, the first information reported by the terminal device can identify the K antenna port groups with better channel quality. Therefore, the antenna port groups with better channel quality can be used to provide communication services to the terminal device, thereby improving communication quality.

[0122] Those skilled in the art will understand that steps 301 and 304 can be considered as execution steps corresponding to steps 101 to 102 in the embodiment shown in Figure 1 above, and the two are complementary in their specific implementation principles and logic. Therefore, the explanation of the terms involved in this embodiment can be referred to the relevant description of the embodiment shown in Figure 1, and will not be repeated here.

[0123] Please refer to Figure 4, which shows a communication device 40. The communication device 40 may include:

[0124] Communication module 401 is used to receive at least one reference signal from the antenna port array.

[0125] The communication module 401 is also used to send first information based on the measurement results of at least one reference signal.

[0126] Furthermore, the communication module 401 is also configured to receive a reference signal from the antenna port array. Alternatively, the communication module 401 is also configured to receive reference signals from multiple antenna port subarrays in the antenna port array.

[0127] Furthermore, the communication module 401 is also used to receive configuration parameters for configuring the antenna port array and at least one reference signal.

[0128] In specific implementations, the aforementioned communication device 40 may correspond to a chip with communication function in a terminal device, such as a system-on-a-chip (SOC), a baseband chip, etc.; or to a chip module in a terminal device that includes a chip with communication function; or to a chip module with a chip with data processing function; or to a terminal device.

[0129] In another non-limiting embodiment, the communication module 401 is configured to transmit at least one reference signal via an antenna port array. The communication module 401 is also configured to receive first information, the first information being determined based on measurements of the at least one reference signal.

[0130] Furthermore, the communication module 401 is used to transmit a reference signal through the antenna port array. Alternatively, the communication module 401 is used to transmit multiple reference signals through multiple antenna port subarrays in the antenna port array.

[0131] Furthermore, the communication module 401 is also used to transmit configuration parameters for configuring the antenna port array and at least one reference signal.

[0132] In specific implementations, the aforementioned communication device 40 may correspond to a chip with communication function in a network device, such as a SOC, baseband chip, etc.; or correspond to a chip module in a network device that includes a chip with communication function; or correspond to a chip module with a chip with data processing function; or correspond to a network device.

[0133] Other relevant descriptions of the communication device 40 can be found in the descriptions in the foregoing embodiments, and will not be repeated here.

[0134] Regarding the modules / units included in the various devices and products described in the above embodiments, they can be software modules / units, hardware modules / units, or a combination of both. For example, for devices and products applied to or integrated into a chip, all modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs running on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits. For devices and products applied to or integrated into a chip module, all modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The implementation is achieved through a software program that runs on a processor integrated within the chip module. The remaining modules / units (if any) can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into terminal equipment, each of their modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal equipment. Alternatively, at least some modules / units can be implemented using a software program that runs on a processor integrated within the terminal equipment, while the remaining modules / units (if any) can be implemented using hardware methods such as circuits.

[0135] This application also discloses a storage medium, which is a computer-readable storage medium storing a computer program thereon. When the computer program is executed, it can perform the steps of the method shown in the foregoing embodiments. The storage medium may include read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk, etc. The storage medium may also include non-volatile memory or non-transitory memory, etc.

[0136] Referring to Figure 5, this application embodiment also provides a hardware structure diagram of a communication device. The device includes a processor 501, a memory 502, and a transceiver 503.

[0137] Processor 501 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program according to the present application. Processor 501 may also include multiple CPUs, and processor 501 can be a single-core processor or a multi-core processor. Here, processor can refer to one or more devices, circuits, or processing cores used to process data (e.g., computer program instructions).

[0138] The memory 502 can be a ROM or other type of static storage device capable of storing static information and instructions, RAM or other type of dynamic storage device capable of storing information and instructions, or it can be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer. This application embodiment does not impose any limitations on this. The memory 502 can exist independently (in this case, the memory 502 can be located outside or inside the device) or it can be integrated with the processor 501. The memory 502 may contain computer program code. The processor 501 is used to execute the computer program code stored in the memory 502, thereby implementing the method provided in this application embodiment.

[0139] The processor 501, memory 502, and transceiver 503 are connected via a bus. The transceiver 503 is used to communicate with other devices or communication networks. Optionally, the transceiver 503 may include a transmitter and a receiver. The device in the transceiver 503 that implements the receiving function can be considered as a receiver, which is used to perform the receiving steps in the embodiments of this application. The device in the transceiver 503 that implements the transmitting function can be considered as a transmitter, which is used to perform the transmitting steps in the embodiments of this application.

[0140] When the structural diagram shown in Figure 5 is used to illustrate the structure of the terminal device involved in the above embodiments, the processor 501 is used to control and manage the actions of the terminal device. For example, the processor 501 is used to support the terminal device in executing steps 101 and 102 in Figure 1, or steps 301, 302, 303 and 304 in Figure 3, and / or other actions performed by the terminal device in the processes described in the embodiments of this application. The processor 501 can communicate with other network entities through the transceiver 503, for example, with the aforementioned network device. The memory 502 is used to store the program code and data of the terminal device.

[0141] When the structural diagram shown in Figure 5 is used to illustrate the structure of the network device involved in the above embodiments, the processor 501 is used to control and manage the actions of the network device. For example, the processor 501 is used to support the network device in executing steps 101 and 102 in Figure 1, or steps 301, 302 and 304 in Figure 3, and / or other actions performed by the network device in the processes described in the embodiments of this application. The processor 501 can communicate with other network entities through the transceiver 503, for example, with the aforementioned terminal device. The memory 502 is used to store the program code and data of the network device.

[0142] In this application embodiment, a one-way communication link from the access network to the terminal device is defined as a downlink, and the data transmitted on the downlink is called downlink data. The transmission direction of the downlink data is called the downlink direction. On the other hand, a one-way communication link from the terminal device to the access network is defined as an uplink, and the data transmitted on the uplink is called uplink data. The transmission direction of the uplink data is called the uplink direction.

[0143] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article indicates that the preceding and following related objects have an "or" relationship.

[0144] In the embodiments of this application, "multiple" refers to two or more.

[0145] The descriptions of "first," "second," etc., appearing in the embodiments of this application are for illustrative purposes and to distinguish the objects being described. They have no order and do not indicate any special limitation on the number of devices in the embodiments of this application, nor do they constitute any limitation on the embodiments of this application.

[0146] In this application, the term "connection" refers to various connection methods, such as direct connection or indirect connection, to achieve communication between devices. This application does not impose any limitations on this.

[0147] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means.

[0148] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0149] In the several embodiments provided in this application, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of units is merely a logical functional division, and other division methods may exist in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0150] The units described as separate components may or may not be physically separate. 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 the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0151] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can be physically included separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0152] The integrated unit implemented as a software functional unit described above can be stored in a computer-readable storage medium. This software functional unit, stored in a storage medium, includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in the various embodiments of this application.

[0153] While this application discloses the above information, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this application; therefore, the scope of protection of this application shall be determined by the scope defined in the claims.

Claims

1. A communication method characterized by comprising: Comprising: receiving at least one reference signal from an antenna port array; sending first information based on measurement results of the at least one reference signal; wherein the measurement results of the at least one reference signal are used to characterize channel state information of the antenna port array, and the first information indicates K antenna port groups in the antenna port array, each antenna port group comprising a plurality of antenna ports, and the plurality of antenna ports in each antenna port group satisfy spatial stationarity, and K is a positive integer.

2. The communication method according to claim 1, characterized by, Channel parameters between the plurality of antenna ports in each antenna port group are the same, and the channel parameters of the antenna ports are determined based on the measurement results of the at least one reference signal.

3. The communication method according to claim 1, wherein, The plurality of antenna ports in each antenna port group are adjacent in the antenna port array.

4. The communication method according to claim 1, characterized by, An array formed by the plurality of antenna ports in each antenna port group has a rectangular outer shape.

5. The communication method according to claim 1, wherein, The receiving at least one reference signal from an antenna port array comprises: receiving one reference signal from the antenna port array; or receiving reference signals from a plurality of antenna port sub-arrays in the antenna port array, each antenna port sub-array comprising a plurality of ports, and each antenna port group comprising at least one antenna sub-array.

6. The communication method according to claim 5, wherein, The first information comprises at least one of: identifiers of individual antenna ports in each antenna port group; or identifiers of individual antenna port sub-arrays in each antenna port group; or identifiers of reference signals of individual antenna port sub-arrays.

7. The communication method of claim 1, wherein, The first information further indicates codebook feedback parameters, and the codebook feedback parameters comprise at least one of: identifiers of beamforming vectors corresponding to each antenna port group; or phase compensation coefficients between antenna port group i and antenna port group 0, i taking values [1, K-1]; or phase compensation coefficients between polarization directions within each antenna port group. The receiving at least one reference signal from an antenna port array further comprises:

8. The communication method of claim 1, wherein, receiving configuration parameters, the configuration parameters being used to configure the antenna port array and the at least one reference signal. The configuration parameters comprise at least one of:

9. The communication method according to claim 8, wherein, a size of the antenna port array; or sizes of a plurality of antenna port sub-arrays in the antenna port array; or one reference signal, a number of ports of the reference signal being equal to a number of antenna ports of the antenna port array; or a plurality of reference signals, a number of ports of the reference signal being equal to a number of antenna ports of a corresponding antenna port sub-array in the at least one antenna port sub-array. Comprising: sending at least one reference signal through an antenna port array; 10. A communication method characterized by comprising: receiving first information, the first information being associated with measurement results of the at least one reference signal; wherein the measurement results of the at least one reference signal are used to characterize channel state information of the antenna port array, and the first information indicates K antenna port groups in the antenna port array, each antenna port group comprising a plurality of antenna ports, and the plurality of antenna ports in each antenna port group satisfy spatial stationarity, and K is a positive integer. ​ ​ 11. The communication method according to claim 10, wherein, The channel parameters between the multiple antenna ports in each antenna port group are the same, and the channel parameters of the antenna ports are determined based on measurement results of the at least one reference signal.

12. The communication method according to claim 10, wherein, The multiple antenna ports in each antenna port group are adjacent in position in the antenna port array.

13. The communication method according to claim 10, wherein, The array formed by the multiple antenna ports in each antenna port group is rectangular in shape.

14. The communication method according to claim 10, wherein, The sending of the multiple reference signals through the antenna port array comprises: sending one reference signal through the antenna port array; or sending multiple reference signals through multiple antenna port sub-arrays in the antenna port array, each antenna port sub-array comprising multiple ports, and each antenna port group comprising at least one antenna sub-array.

15. The communication method according to claim 10, wherein, The sending of the multiple reference signals through the antenna port array further comprises: sending configuration parameters, the configuration parameters being used to configure the antenna port array and the at least one reference signal.

16. A communications device, characterized by comprises: a communication module configured to receive at least one reference signal from an antenna port array; the communication module is further configured to send first information based on measurement results of the at least one reference signal; wherein the measurement results of the at least one reference signal are used to represent channel state information of the antenna port array, and the first information indicates K antenna port groups in the antenna port array, each antenna port group comprising multiple antenna ports, and the multiple antenna ports in each antenna port group satisfying spatial non-stationarity, K being a positive integer.

17. A communications device, characterized by comprises: a communication module configured to send at least one reference signal through an antenna port array; the communication module is further configured to receive first information, the first information being determined based on measurement results of the at least one reference signal; wherein the measurement results of the at least one reference signal are used to represent channel state information of the antenna port array, and the first information indicates K antenna port groups in the antenna port array, each antenna port group comprising multiple antenna ports, and the multiple antenna ports in each antenna port group satisfying spatial stationarity, K being a positive integer.

18. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is run by the processor to perform the steps of the communication method of any one of claims 1 to 9, or to perform the steps of the communication method of any one of claims 10 to 15.

19. A computer program product comprising computer programs / instructions, characterized in that, The computer program / instructions are executed by the processor to perform the steps of the communication method of any one of claims 1 to 9, or to perform the steps of the communication method of any one of claims 10 to 15.

20. A communication device comprising a memory and a processor, said memory having stored thereon a computer program operable to run on said processor, characterized in that, The processor runs the computer program to perform the steps of the communication method of any one of claims 1 to 9.

21. A communication device comprising a memory and a processor, said memory having stored thereon a computer program that is operable to run on said processor, characterized in that, The processor runs the computer program to perform the steps of the communication method of any one of claims 10 to 15.

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