A communication method and apparatus

Abstract

The application relates to a communication method and device, and relates to the technical field of communication. In the method, a first communication device can acquire first information, so as to perform channel measurement on a first antenna panel group and a second antenna panel group respectively to obtain measurement results on resources indicated by the first information, and then send the measurement results. The measurement results include phase information of the first antenna panel group, bending angle information of the second antenna panel group relative to the first antenna panel group, and phase offset information. This can reduce the feedback amount corresponding to the second antenna panel group, so as to reduce the feedback overhead of the measurement results.

Description

Technical Field

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

[0002] In multiple input multiple output (MIMO) technology, network devices can reduce interference between multiple users and between multiple signal streams of the same user through precoding, which is beneficial to improving signal quality, realizing spatial multiplexing, and improving spectrum utilization.

[0003] To help network devices select appropriate precoding matrices, they can send reference signals, such as channel state information-reference signals (CSI-RS), to terminals. This allows terminals to perform channel measurements based on the reference signals and then send the results back to the network devices. However, in non-terrestrial network (NTN) technology, NTN devices utilize large-scale antenna arrays with multi-panel structures, meaning a large number of antenna ports. The number of antenna ports affects the feedback overhead of measurement results. Therefore, reducing the feedback overhead of measurement results is a pressing technical problem that needs to be addressed at present. Summary of the Invention

[0004] This application provides a communication method and apparatus that can reduce the feedback overhead of measurement results.

[0005] Firstly, a communication method is provided, which can be executed by a first communication device. The first communication device can be a communication equipment (such as a terminal), or a module within the communication equipment (e.g., a processor, chip, or system-on-a-chip, specifically a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip). It can also be a logic node, logic module, or software capable of implementing all or part of the functions of the communication equipment. The method includes: the first communication device receiving first information, the first information indicating at least two resources, including a first resource and a second resource. The first resource is used to perform channel measurement on a first antenna panel group, and the second resource is used to perform channel measurement on a second antenna panel group. Thus, the first communication device can perform channel measurement on the first and second antenna panel groups respectively on the first and second resources to obtain a first measurement result, thereby transmitting the first measurement result. The first measurement result includes phase information of the first antenna panel group, bending angle information of the second antenna panel group relative to the first antenna panel group, and phase offset information.

[0006] As can be seen, in the above embodiments, the first communication device can acquire first information, thereby performing channel measurements on the first antenna panel group and the second antenna panel group respectively on the resources indicated by the first information to obtain measurement results, and then transmitting the measurement results. The measurement results include phase information of the first antenna panel group, bending angle information of the second antenna panel group relative to the first antenna panel group, and phase offset information. That is, for the first antenna panel group, the first communication device can feed back the phase information of the first antenna panel group. For the second antenna panel group, the first communication device can feed back the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group. Compared to feeding back the phase of each antenna port included in each antenna panel of the second antenna panel group, this reduces the feedback amount corresponding to the second antenna panel group, thereby reducing the feedback overhead of the measurement results.

[0007] Secondly, a communication method is provided, which can be executed by a second communication device. The second communication device can be a communication equipment (such as a network device), or a module within the communication equipment (such as a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the functions of the communication equipment. The method includes: the second communication device sending first information to receive a first measurement result. The first information indicates at least two resources, including a first resource and a second resource. The first resource is used to perform channel measurement on a first antenna panel group, and the second resource is used to perform channel measurement on a second antenna panel group. The first measurement result includes phase information of the first antenna panel group, bending angle information of the second antenna panel group relative to the first antenna panel group, and phase offset information. The phase information of the first antenna panel group is obtained by performing channel measurement on the first resource, and the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group are obtained by performing channel measurement on the second resource.

[0008] As can be seen, in the above embodiments, the second communication device can send first information, enabling the first communication device to perform channel measurements on the first antenna panel group and the second antenna panel group respectively on the resources indicated by the first information, obtain measurement results, and then send the measurement results. The measurement results include the phase information of the first antenna panel group, the bending angle information of the second antenna panel group relative to the first antenna panel group, and the phase offset information. That is, the first communication device completely feeds back the phase information of the first antenna panel group, such as the phase of each antenna port included in each antenna panel of the first antenna panel group. For the second antenna panel group, the first communication device can feed back the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group. This is equivalent to feeding back the phase information of the second antenna panel group, such as the phase of each antenna port included in each antenna panel of the second antenna panel group, which can reduce the feedback amount corresponding to the second antenna panel group, thereby reducing the feedback overhead of the measurement results.

[0009] In one possible implementation, the first information further includes channel feedback parameters for at least two resources, wherein the channel feedback parameters of the first resource and the channel feedback parameters of the second resource are different. For example, the channel feedback parameters of the first resource are used to indicate the phase information of the first antenna panel group, and the channel feedback parameters of the second resource are used to indicate the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group.

[0010] As can be seen, in the above embodiments, the second communication device can also indicate channel feedback parameters of at least two resources to the first communication device through the first information, such as channel feedback parameters of the first resource and channel feedback parameters of the second resource. The channel feedback parameters of the first resource and the second resource are different. This allows the first communication device to know the different feedback content for the first resource and the second resource, thereby reducing the excessive feedback overhead caused by the first communication device feeding back the same content (such as the phase information of the antenna panel group) for the first resource and the second resource.

[0011] In one possible implementation, the first antenna panel group includes a plurality of antenna panels, including the first antenna panel and other antenna panels besides the first antenna panel. The phase information of the first antenna panel group includes the phase information of the first antenna panel and the phase offset information of the other antenna panels relative to the first antenna panel. Optionally, the phase information of the first antenna panel may include the phase of a plurality of antenna ports within the first antenna panel.

[0012] As can be seen, in the above embodiments, the phase information of the first antenna panel group includes the phase information of the first antenna panel in the first antenna panel group and the phase offset information of other antenna panels relative to the first antenna panel. That is, for the first antenna panel in the first antenna panel group, the first communication device can feed back the phase information of the first antenna panel, such as the phase of multiple antenna ports within the first antenna panel. For other antenna panels in the first antenna panel group besides the first antenna panel, the first communication device can feed back the phase offset information of other antenna panels relative to the first antenna panel. Compared to feeding back the phase of each antenna port in other antenna panels, this can reduce the feedback amount corresponding to other antenna panels, thereby reducing the feedback amount corresponding to the first antenna panel group, and thus reducing the feedback overhead of the measurement results.

[0013] In one possible implementation, the bending angle information of the second antenna panel group relative to the first antenna panel group includes the bending angle value of the second antenna panel group relative to the first antenna panel group in the lateral direction and / or the bending angle value of the second antenna panel group relative to the first antenna panel group in the longitudinal direction.

[0014] In one possible implementation, the first communication device may also transmit second information. Correspondingly, the second communication device may also receive the second information. Wherein, the bending angle of the second antenna panel group relative to the first antenna panel group in the lateral direction is 0, and the second information is used to indicate the longitudinal direction. Alternatively, the bending angle of the second antenna panel group relative to the first antenna panel group in the longitudinal direction is 0, and the second information is used to indicate the lateral direction.

[0015] As can be seen in the above embodiments, when the bending angle of the second antenna panel group relative to the first antenna panel group in a certain direction is 0, the first communication device can also send second information, so that the second communication device can know in which direction the bending angle value fed back by the first communication device is the angle value, thereby better helping the second communication device to determine the phase information of the second antenna panel group.

[0016] Thirdly, a communication method is provided, which can be executed by a first communication device. The first communication device can be a communication equipment (such as a terminal), or a module within the communication equipment (such as a processor, chip, or chip system), or a logic node, logic module, or software capable of implementing all or part of the functions of the communication equipment. The method includes: the first communication device receiving phase information of a reference antenna panel group, and receiving third information, the third information indicating at least one resource, the at least one resource being used for channel measurement of the at least one antenna panel group. Thus, the first communication device can perform channel measurements on the at least one antenna panel group at the at least one resource based on the phase information of the reference antenna panel group to obtain a second measurement result, thereby transmitting the second measurement result. The second measurement result includes bending angle information and phase offset information of the at least one antenna panel group relative to the reference antenna panel group.

[0017] As can be seen, in the above embodiments, the first communication device can acquire the phase information and third information of the reference antenna panel group, and thus can perform channel measurements on at least one antenna panel group on the resources indicated by the third information based on the phase information of the reference antenna panel group to obtain measurement results, and then transmit the measurement results. The measurement results include the bending angle information and phase offset information of at least one antenna panel group relative to the reference antenna panel group. That is, for each antenna panel group, the first communication device can feed back the bending angle information and phase offset information of each antenna panel group relative to the reference antenna panel group. Compared to feeding back the phase of each antenna port included in each antenna panel of each antenna panel group, this reduces the feedback amount corresponding to each antenna panel group, thereby reducing the feedback overhead of the measurement results.

[0018] Fourthly, a communication method is provided, which can be executed by a second communication device. The second communication device can be a communication equipment (such as a network device), or a module within the communication equipment (such as a processor, chip, or chip system), or a logic node, logic module, or software capable of implementing all or part of the functions of the communication equipment. The method includes: the second communication device transmitting phase information of a reference antenna panel group and transmitting third information, the third information indicating at least one resource, the at least one resource being used for channel measurement of the at least one antenna panel group. Thus, the second communication device can receive a second measurement result. The second measurement result includes bending angle information and phase offset information of the at least one antenna panel group relative to the reference antenna panel group, the bending angle information and phase offset information of the at least one antenna panel group relative to the reference antenna panel group being obtained by performing channel measurements on the at least one antenna panel group on the at least one resource respectively.

[0019] As can be seen, in the above embodiments, the second communication device can transmit phase information of the reference antenna panel group and third information, enabling the first communication device to perform channel measurements on at least one antenna panel group on the resources indicated by the third information based on the phase information of the reference antenna panel group, obtain measurement results, and then transmit the measurement results. The measurement results include bending angle information and phase offset information of at least one antenna panel group relative to the reference antenna panel group. That is, for each antenna panel group, the first communication device can feed back the bending angle information and phase offset information of each antenna panel group relative to the reference antenna panel group. Compared to feeding back the phase of each antenna port included in each antenna panel of each antenna panel group, this reduces the feedback amount corresponding to each antenna panel group, thereby reducing the feedback overhead of the measurement results.

[0020] In one possible implementation, the third information further includes channel feedback parameters for at least one resource, wherein the channel feedback parameters for at least one resource are identical. For example, the channel feedback parameters for at least one resource are used to indicate bending angle information and phase offset information of at least one antenna panel group relative to a reference antenna panel group.

[0021] As can be seen from the above embodiments, the second communication device can also indicate the channel feedback parameters of at least one resource to the first communication device through third information, and the channel feedback parameters of at least one resource are the same. This allows the first communication device to know the same content for each resource, such as bending angle information and phase offset information, thereby reducing the problem of excessive feedback overhead caused by the first communication device feeding back the phase information of the antenna panel group for each resource.

[0022] In one possible implementation, the phase information of the reference antenna panel group includes multiple reference antenna panels, including a first reference antenna panel and other reference antenna panels besides the first reference antenna panel. The phase information of the reference antenna panel group includes the phase information of the first reference antenna panel and the phase offset information of the other reference antenna panels relative to the first reference antenna panel. Optionally, the phase information of the first reference antenna panel includes the phase of multiple antenna ports within the first reference antenna panel.

[0023] As can be seen, in the above embodiments, the phase information of the reference antenna panel group includes the phase information of the first reference antenna panel in the reference antenna panel group and the phase offset information of other reference antenna panels relative to the first reference antenna panel. That is, for the first reference antenna panel in the reference antenna panel group, the first communication device can feed back the phase information of the first reference antenna panel, such as the phase of multiple antenna ports within the first reference antenna panel. For other reference antenna panels in the reference antenna panel group besides the first reference antenna panel, the first communication device can feed back the phase offset information of other reference antenna panels relative to the first reference antenna panel. Compared to feeding back the phase of each antenna port in other reference antenna panels, this can reduce the feedback amount corresponding to other reference antenna panels, thereby reducing the feedback amount corresponding to the reference antenna panel group, and thus reducing the feedback overhead of the measurement results.

[0024] In one possible implementation, the bending angle information of at least one antenna panel group relative to the reference antenna panel group includes the bending angle value of at least one antenna panel group relative to the reference antenna panel group in the lateral direction and / or the bending angle value of at least one antenna panel group relative to the reference antenna panel group in the longitudinal direction.

[0025] In one possible implementation, the first communication device may further transmit fourth information. Correspondingly, the second communication device may also receive the fourth information. Wherein, the bending angle of at least one antenna panel group relative to the reference antenna panel group in the lateral direction is 0, and the fourth information is used to indicate the longitudinal direction. Alternatively, the bending angle of at least one antenna panel group relative to the reference antenna panel group in the longitudinal direction is 0, and the fourth information is used to indicate the lateral direction.

[0026] As can be seen in the above embodiments, when the bending angle of at least one antenna panel group relative to the reference antenna panel group in a certain direction is 0, the first communication device can also send fourth information, so that the second communication device can know in which direction the bending angle value fed back by the first communication device is the angle value, thereby better helping the second communication device to determine the phase information of at least one antenna panel group.

[0027] Fifthly, a communication device is provided, comprising units, modules, or means for implementing the method as described in any one of the first or second aspects. The communication device may be a first communication device, which may be a communication equipment, or a module within a communication equipment (e.g., a processor, chip, or chip system), or a logic node, logic module, or software capable of implementing all or part of the functions of the communication equipment. Alternatively, the communication device may be a second communication device, which may be a communication equipment, or a module within a communication equipment (e.g., a processor, chip, or chip system), or a logic node, logic module, or software capable of implementing all or part of the functions of the communication equipment.

[0028] A sixth aspect provides a communication device including at least one processor. The at least one processor is configured to cause the communication device to perform the method described in either the first or second aspect. The communication device may be a first communication device, which may be a communication equipment, or a module within a communication equipment (e.g., a processor, chip, or chip system), or a logic node, logic module, or software capable of implementing all or part of the functions of the communication equipment. Alternatively, the communication device may be a second communication device, which may be a communication equipment, or a module within a communication equipment (e.g., a processor, chip, or chip system), or a logic node, logic module, or software capable of implementing all or part of the functions of the communication equipment. The at least one processor may execute a computer program or instructions stored in a memory to cause the described method to be performed. The memory may be included in the communication device or located outside the communication device. Furthermore, the communication device may also include an interface.

[0029] In a seventh aspect, a computer-readable storage medium is provided, which stores computer instructions or programs that, when executed, cause a computer to perform the method as described in any one of the first, second, third, or fourth aspects.

[0030] Eighthly, a computer program product is provided, comprising: a computer program or program that, when executed by a computer, causes the computer to perform the method as described in any one of the first, second, third, or fourth aspects.

[0031] A ninth aspect provides a chip including at least one processor for executing computer instructions or programs, which, when run, cause the chip to perform the method as described in any one of the first, second, third, or fourth aspects. The processor may execute computer programs or instructions stored in memory to cause the described method to be performed. The memory may be included in the chip or located externally. Furthermore, the chip may include an interface.

[0032] A tenth aspect provides a communication system comprising a first communication device for performing the method as described in any one of the first aspects and a second communication device for performing the method as described in any one of the second aspects.

[0033] Eleventh aspect: A communication system is provided, comprising a first communication device for performing the method as described in any one of the third aspects and a second communication device for performing the method as described in any one of the fourth aspects. Attached Figure Description

[0034] Figure 1 As the basic architecture of a communication system;

[0035] Figure 2 This application provides an embodiment of a CU-DU separation architecture in an ORAN system. Figure 1 A schematic diagram illustrating the implementation of AI functions in the communication system shown.

[0036] Figure 3 This is a schematic diagram illustrating a bend between antenna panels provided in an embodiment of this application.

[0037] Figure 4 A schematic diagram of an antenna panel grouping provided in an embodiment of this application;

[0038] Figure 5 A flowchart illustrating a communication method provided in an embodiment of this application;

[0039] Figure 6 A schematic diagram illustrating the establishment of coordinate axes with the center of the antenna panel as the origin, provided for an embodiment of this application;

[0040] Figure 7 A flowchart illustrating yet another communication method provided in an embodiment of this application;

[0041] Figure 8 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0042] Figure 9 This is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0043] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. The terms "system" and "network" in the embodiments of this application can be used interchangeably. Unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship; for example, A / B can represent A or B. "And / or" in this application 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 alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be one or multiple. Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish between network elements and similar items with essentially the same function. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that the terms "first" and "second" are not necessarily different.

[0044] References to "one embodiment" or "some embodiments" in the embodiments described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0045] The following detailed embodiments further illustrate the objectives, technical solutions, and beneficial effects of this application. It should be understood that the following are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made based on the technical solutions of this application should be included within the scope of protection of this application.

[0046] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0047] The method provided in this application can be applied to various communication systems, such as wireless local area network (WLAN) systems, Internet of Things (IoT) systems, narrowband Internet of Things (NB-IoT) systems, long term evolution (LTE) systems, 5th generation (5G) communication systems, new radio (NR) systems, or new communication systems emerging in future communication development. Among these, IoT networks may include, but are not limited to, vehicle-to-everything (V2X) networks. The communication methods in V2X systems can be collectively referred to as vehicle-to-everything (V2X), where X can represent anything. For example, V2X can include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication, etc. The method provided in this application embodiment can also be applied to NTN communication (also known as non-terrestrial network communication) or scenarios where NTN and terrestrial network (TN) are integrated.

[0048] The method provided in this application can be applied between two entities in a communication system, such as one entity sending information to or receiving information sent by the other entity. In a wireless communication system, communication devices are included, and these devices can communicate wirelessly using air interface resources. Air interface resources may include at least one of time-domain resources, frequency-domain resources, code resources, and spatial resources; this application does not limit this. For example, the aforementioned two entities may include a network device and a terminal, or may include a chip that can be placed in a network device and a chip that can be placed in a terminal, etc. Of course, as standards advance, other types of entities may emerge subsequently; this application does not limit this.

[0049] The basic architecture of the communication system provided in the embodiments of this application is described below. The communication system provided in this application may include one or more network devices and one or more terminals.

[0050] The following is based on Figure 1 The system architecture shown is illustrated as an example. Figure 1 The communication system includes a network device 10 and a terminal 20 that communicates with the network device 10.

[0051] It should be pointed out that, Figure 1 The number of network devices and terminals shown is merely illustrative and should not be considered a specific limitation of this application. The terminals and network devices involved in the system architecture will be described in detail below.

[0052] I. Terminal

[0053] A terminal is an entity on the user side used to receive signals, or transmit signals, or both. Terminals are used to provide users with one or more of the following: voice services and data connectivity services. A terminal can be a device that includes wireless transceiver capabilities and can cooperate with network equipment to provide communication services to users. Specifically, a terminal can refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication equipment, user agent, user apparatus, or roadside unit (RSU). Terminals can also be drones, Internet of Things (IoT) devices, stations (STs) in wireless local area networks (WLANs), cellular phones, smartphones, cordless phones, wireless data cards, tablets, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistant (PDA) devices, laptop computers, machine type communication (MTC) terminals, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices (also known as wearable smart devices), virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in remote medical care, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in smart grids, and transportation security devices. Wireless terminals in smart cities, smart homes, etc., can be used in various contexts such as safety, security, and safety. The terminal can also be a terminal in a 5G system or a terminal in a next-generation communication system; this application does not limit the specific application to these possibilities.

[0054] The embodiments of this application do not limit the device form of the terminal. The device used to implement the functions of the terminal can be the terminal itself; it can also be a device that supports the terminal in implementing the functions, such as a chip system. The device can be installed in the terminal or used in conjunction with the terminal. In the embodiments of this application, the chip system can be composed of chips or can include chips and other discrete devices.

[0055] II. Network Equipment

[0056] A network device is an entity on the network side used to transmit signals, or receive signals, or both. A network device can be a means deployed in a radio access network (RAN) to provide wireless communication functionality to terminals.

[0057] In one possible scenario, network equipment can be devices with base station functions, such as evolved NodeBs (eNodeBs), transmitting and receiving points (TRPs), transmitting points (TPs), next-generation NodeBs (gNBs), base stations in future mobile communication systems, integrated access and backhaul (IAB) nodes, and non-terrestrial network equipment, i.e., equipment that can be deployed on high-altitude platforms or satellites. Network equipment can also be transmitting and receiving points (TRPs), base stations, and various forms of control nodes, such as network controllers and wireless controllers. Specifically, network equipment can be various forms of macro base stations, micro base stations (also known as small cells) in heterogeneous network (HetNet) scenarios, relay stations, access points (APs), radio network controllers (RNCs), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved node Bs, or home node Bs (HNBs)), baseband units (BBUs) and remote radio units (RRUs) in distributed base station scenarios, transmitting and receiving points (TRPs), transmitting points (TPs), mobile switching centers, etc., and can also be base station antenna panels. Control nodes can connect to multiple base stations and configure resources for multiple terminals covered by multiple base stations. In systems employing different wireless access technologies, the names of devices with base station functions may differ. For example, it could be a gNB in ​​5G, or a network-side device in a network after 5G, or a network device in a future evolved public land mobile network (PLMN) network, or a device that performs base station functions in device-to-device (D2D) communication, machine-to-machine (M2M) communication, or vehicle-to-everything (V2X) communication, etc. This application does not limit the specific name of the network device.Network equipment can also be open RAN (O-RAN or ORAN), baseband pool (BBU pool) and RRU under cloud radio access network (CRAN), etc.

[0058] In another possible scenario, multiple network devices collaborate to assist terminals in achieving wireless access, with each network device performing a portion of the base station's functions. For example, network devices may include a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). CUs and DUs can be separate entities or included in the same network element, such as a baseband unit (BBU). RUs may be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs). It is understood that network devices can be CU nodes, DU nodes, or devices comprising both CU and DU nodes. Furthermore, CUs can be classified as network devices in the access network (RAN) or in the core network (CN), without limitation.

[0059] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0060] In this embodiment, the form of the network device is not limited. The device used to implement the function of the network device can be the network device itself, or it can be a device that supports the network device in implementing the function, such as a chip system. The device can be installed in the network device or used in conjunction with the network device.

[0061] To facilitate understanding of the content of this solution, some terms used in the embodiments of this application will be explained below, so that those skilled in the art can understand them. This part is only for the purpose of understanding and should not be regarded as a specific limitation of this application.

[0062] I. NTN

[0063] In this embodiment, network devices deployed in the air can be referred to as NTN devices, and network devices deployed on the ground can be referred to as TN devices. An NTN communication system includes at least one NTN device, while network devices in a TN communication system are TN devices. A TN device, relative to an NTN device, is a stationary or slower-moving network device. In other words, an NTN device, relative to a TN device, can be a high-speed mobile network device.

[0064] NTN equipment can include satellites, high-altitude platforms (HAPs), drones, or hot air balloons, etc., without limitation. Satellites can be medium Earth orbit (MEO) satellites, low Earth orbit (LEO) satellites, high altitude platform stations (HAPS), evolved NodeBs (eNBs), or 5G base stations (gNBs), etc.

[0065] In the case of NTN equipment being satellites, the satellites may have different functions in different scenarios, specifically:

[0066] 1. In Figure 2 In a transparent satellite architecture shown in Figure 2-1, the radio access network (RAN) may include remote radio units (RRUs) and base stations (such as...). Figure 2The RRU can include a satellite and an NTN gateway. The satellite is used for radio frequency filtering and frequency conversion and amplification to ensure that the waveform signal repeated by the payload remains unchanged. That is, the satellite primarily acts as a Layer 1 (L1) relay device, used to regenerate physical layer signals (i.e., radio frequency filtering, frequency conversion, and amplification), without involving other higher protocol layers. The NTN gateway supports all functions for forwarding new radio-Uu (NR-Uu) interface signals. The NR-Uu interface is the interface between the terminal and the base station in the protocol.

[0067] 2. In Figure 2 In the regenerative satellite architecture without inter-satellite link shown in Figure 2-2, the RAN includes satellites and NTN gateways. The satellites act as base stations, possessing base station processing functions. The NTN gateway is a transport network layer node and supports the corresponding transport protocols. The satellites and NTN gateways are connected via a satellite radio interface (SRI), with the NG interface (NG over SRI) responsible for higher-level information transmission.

[0068] 3. In Figure 2 In a regenerative satellite architecture with inter-satellite links, as shown in Figures 2-3, and... Figure 2 Similar to 2-2, the difference is that SRI exists, and multiple satellites can be connected via the Xn interface. The Xn interface is carried over SRI.

[0069] 4. In Figure 2In a regenerative satellite architecture with distributed unit (DU) processing capabilities, as shown in Figure 2-4, the satellite acts as a DU within the base station, jointly performing base station functions with the central unit (CU). An NTN gateway exists between the DU on the satellite and the CU on the ground. The NTN gateway is a transport network layer node that supports the corresponding transport protocols. The satellite and the NTN gateway are connected via an F1 interface, which is carried over the SRI (F1 over SRI).

[0070] 5. In a satellite architecture with integrated access and backhaul (IAB) functionality, the satellite acts as a base station with IAB functionality.

[0071] Among them, when the satellite acts as a Layer 1 relay device (i.e. Figure 2 In the transparent satellite architecture shown in Figure 2-1, the communication system may further include a base station. The base station can be an evolved universal terrestrial radio access (E-UTRA) system, an NR system, or a future radio access system as defined in the 3rd generation partnership project (3GPP). It can also be a WiFi system, enhanced mobile broadband (eMBB), ultra-reliable low latency communication (URLLC), massive machine-type communication (mMTC), a long-range Internet of Things (LoRa) system, or a vehicle-to-everything (V2X) system. The base station may also include two or more of the above-mentioned different radio access systems. The base station may also be an open radio access network (RAN) (O-RAN).

[0072] II. Channel State Information (CSI) Report

[0073] CSI reports can be used to report CSI (Channel Signal Quality). CSI can be used to characterize channel features, channel characteristics, or the channel itself. In other words, CSI can describe information related to channel quality. That is, CSI can describe the propagation process of wireless signals between the transmitter and receiver, including the effects of distance, scattering, fading, etc., on the wireless signal. For example, for downlink transmission, CSI can be used by the terminal to report downlink channel quality to the network device, so that the network device can perform at least one of the following based on the CSI: resource scheduling, beam management, or mobility management. For uplink transmission, the network device can utilize channel reciprocity to use downlink channel quality as uplink channel quality.

[0074] The CSI may include at least one of the following: precoding matrix indicator (PMI), channel quality indicator (CQI), channel state information reference signal resource indicator (CSI-RS resource indicator, CRI), layer indicator (LI), synchronization signal block resource indicator (SSBRI), rank indicator (RI), layer indicator (LI), layer 1 reference signal received power (L1-RSRP), layer 1 signal-to-noise and interference ratio (L1-SINR), angle of arrival (AOA), angle of arrival spread (AAS), angle of departure (AOD), angle of departure spread (ADS), spatial correlation, channel / channel matrix processed vector / vector, channel / channel matrix processed feature vector / vector, channel information / channel matrix information. In one possible implementation, the contents listed herein are some examples of CSI. In actual applications, they can be adjusted according to the actual situation. Any information that can be used to describe channel / channel characteristics / measurement results / channel quality can be understood as CSI in this application, and this application does not limit it.

[0075] III. Reference Signal (RS)

[0076] Reference signals, also known as pilot signals, can be used for channel estimation (or channel measurement). For example, reference signals can be sounding reference signals (SRS), tracking reference signals (TRS), phase tracking reference signals (PTRS), channel state information reference signals (CSI-RS), demodulation reference signals (DMRS), positioning reference signals (PRS), synchronization signal blocks (SSB), or other reference signals or pilots defined by future standards / protocols; this is not limited here.

[0077] In one possible implementation, the reference signal can be divided into an uplink reference signal and a downlink reference signal. The uplink reference signal can be a reference signal transmitted by the terminal, such as SRS, CSI-RS, or DMRS. The downlink reference signal can be a reference signal transmitted by the network device, such as SRS, TRS, PTRS, CSI-RS, DMRS, or SSB.

[0078] IV. Resources

[0079] A resource mentioned in this application (such as the first resource or the second resource below) may be one or more of the time-domain resources, frequency-domain resources, code-domain resources, and spatial-domain resources used for channel estimation or channel measurement (CM).

[0080] Temporal resources refer to a continuous or discontinuous segment of resources in the time domain. For example, temporal resources can be characterized by radio frames, subframes, time slots, symbols, or milliseconds. Taking the representation of temporal resources by subframes as an example, temporal resources can be understood as one or more continuous subframes and / or one or more discontinuous subframes in the time domain.

[0081] Frequency domain resources refer to a segment of resources, whether continuous or discontinuous, in the frequency domain. For example, frequency domain resources can be characterized by subcarriers, resource blocks (RBs), or resource block groups (RBGs). Taking the representation of frequency domain resources by subcarriers as an example, frequency domain resources can be understood as one or more continuous subcarriers and / or one or more discontinuous subcarriers in the frequency domain.

[0082] Code domain resources refer to the resources occupied in the code domain, and their unit is a sequence or code channel. For example, code domain resources may include reference signal sequences, etc. Reference signal sequences may be DMRS sequences, SRS sequences, TRS sequences, PTRS sequences, CSI-RS sequences, PRS sequences, or SSB sequences, etc.

[0083] Spatial resources refer to resources occupied in the airspace, with units such as beam directions or spatial layers. For example, spatial resources may include beams and / or spatial layers. In the NR protocol, beams can be represented as spatial domain filters, spatial filters, or spatial parameters. For instance, a beam used for transmitting signals can be called a transmission beam (Txbeam), a spatial domain transmission filter, or a spatial transmission parameter. A beam used for receiving signals can be called a reception beam (Rxbeam), a spatial domain receive filter, or a spatial Rx parameter. In one possible implementation, a reference signal can represent the beam; that is, the beam is represented by a reference signal. As an example, beams and reference signals can be used interchangeably. A spatial layer can refer to an independently transmittable data stream.

[0084] In one possible implementation, a resource mentioned in this application can be used to transmit a reference signal. In this case, the resource can also be referred to as a reference signal resource. Examples include DMRS resources, SRS resources, TRS resources, PTRS resources, CSI-RS resources, PRS resources, or SSB resources. These are just some examples of reference signal resources, and this application does not limit them. Any resource that can be used for channel estimation or channel measurement can be understood as a reference signal resource in this application.

[0085] V. Antenna Port

[0086] An antenna port, or simply a port, refers to a transmitting antenna that is identified by the receiving end, or a transmitting antenna that can be distinguished spatially.

[0087] An antenna port can be a logical concept. For example, an antenna port can be a single physical antenna on the transmitter, or a weighted combination of multiple physical antennas on the transmitter.

[0088] In one possible implementation, the antenna port can correspond to a reference signal. That is, the antenna port used to transmit and / or receive the reference signal can be called a reference signal port, such as a CSI-RS port, SRS port, DMRS port, PTRS port, TRS port, or SSB port.

[0089] VI. Antenna Panel

[0090] An antenna panel mentioned in this application may be simply referred to as a panel. An antenna panel may include one or more antennas. For example, an antenna panel may include one or more physical antennas, or it may include one or more virtual antennas. In the former case, the antennas in the antenna panel can be considered as physical antennas actually deployed by the network device; for example, the antennas in the antenna panel group (such as the first antenna panel group or the second antenna panel group, etc.) mentioned below are physical antennas actually deployed by the network device. In the latter case, the antennas in the antenna panel can be considered as virtual logical antennas, which are not deployed by the network device. For example, the antennas in the reference antenna panel group mentioned below may be virtual logical antennas.

[0091] In one possible implementation, one or more antennas may belong to an antenna set; that is, the antenna panel may be an antenna set. Wherein, when the antenna set includes one or more physical antennas, the antenna panel may be an antenna set whose transmission power can be controlled independently or individually. Alternatively, the antenna panel may be an antenna set whose timing can be performed independently or individually. Alternatively, the antenna panel may be an antenna set whose modulation and coding can be performed independently or individually.

[0092] In one possible implementation, the antenna panel can be represented directly or indirectly. For the former, it can be represented by a panel or panel index. For the latter, it can be represented by antenna ports (such as CSI-RS ports, SRS ports, DMRS ports, PTRS ports, TRS ports, or SSB ports) or groups of antenna ports; that is, an antenna panel may include one or more antenna ports, and different antenna panels may include the same or different numbers of antenna ports. Alternatively, the antenna panel can be represented by resources (such as CSI-RS resources, SRS resources, DMRS resources, PTRS resources, TRS resources, or SSB resources) or groups of resources. Alternatively, it can be represented by a channel characteristic, such as the physical downlink control channel (PDCCH), physical downlink sharing channel (PDSCH), or physical broadcast channel (PBCH). Alternatively, the antenna panel can be represented by beamforming, quasi-co-location (QCL), transmission configuration indicator state (TCI-state), spatial relation, an index configured in the QCL, an index configured in the TCI-state, or an index configured in the spatial relation. Alternatively, the antenna panel can be represented by a set of capability parameters of the network device. There is a correspondence between the set of capability parameters of the network device and the antenna panel. For example, a set of capability parameters of the network device includes at least one of the following: the number of SSB ports corresponding to an antenna panel, the maximum number of SSB ports, the number of downlink transmission layers, the maximum number of downlink transmission layers, or the coherence type of the antenna port.

[0093] In the embodiments of this application, unless otherwise specified, the antenna panel refers to the antenna panel of the network device.

[0094] In NTN scenarios, the network equipment is an NTN device. Because NTN devices are far from the ground, the signal power received by the terminal is relatively low, which limits the terminal's communication performance to some extent. To improve the terminal's received signal power, the number of antennas on the NTN device can be increased; that is, the NTN device uses a large array antenna. This increases the antenna gain, allowing the NTN device to use a higher-gain, narrower beam to serve the terminal. When an NTN device is equipped with a large array antenna, the antenna panels usually need to be folded before transmission for ease of transmission, and then unfolded on-orbit during transmission. Foldable large array antennas typically have a multi-panel structure, meaning the antenna array consists of multiple antenna panels. Different antenna panels can be connected by winding springs or mechanical hinges, ensuring sufficient space between them for these other devices. However, winding springs or mechanical hinges may be unstable, and uncontrolled bending may occur between the antenna panels. For example, in... Figure 3 Taking an NTN device containing 18 antenna panels (numbered 0 to 17 in the diagram) as an example, antenna panels 0 and 1 may be bent, as may antenna panels 2 and 3, and so on. The bending angles between antenna panels located on different planes can be the same. For example, the bending angle between antenna panels 0 and 1 may be the same as the bending angle between antenna panels 6 and 7. In other words, some antenna panels have identical antenna panel characteristics or their differences are less than a threshold. Based on this, this solution can group multiple antenna panels with identical or less than a threshold characteristics together.

[0095] For example, in Figure 4 In this example, taking an NTN device containing 18 antenna panels (i.e., panels numbered 0 to 17 in the diagram), the NTN device can group these antenna panels. For example, dividing them into two groups: Antenna panel group 1 can include antenna panels 0, 2, 4, 6, 8, 10, 12, 14, and 16, whose antenna panel characteristics are the same or whose differences are less than a threshold. Antenna panel group 2 can include antenna panels 1, 3, 5, 7, 9, 11, 13, 15, and 17, whose antenna panel characteristics are the same or whose differences are less than a threshold. For instance, any two antenna panels in antenna panel group 1 or antenna panel group 2 have the same antenna panel characteristics or whose differences are less than a threshold. Conversely, any antenna panel in antenna panel group 1 may have different antenna panel characteristics or whose differences are greater than a threshold compared to any antenna panel in antenna panel group 2.

[0096] The antenna panel features mentioned above may include attitude information or orientation information.

[0097] The attitude information of the antenna panel can indicate the angle between the plane on which the antenna panel is located and the reference plane. The reference plane can be a horizontal plane of the ground or a plane perpendicular to the line connecting the NTN device to the center of the earth.

[0098] The orientation information of the antenna panel can indicate the direction of the antenna panel normal.

[0099] VI. Precoding Techniques

[0100] Precoding technology refers to the process by which network devices, knowing the channel conditions, use a precoding matrix that matches the channel conditions to process the data to be transmitted. This ensures that the precoded data is adapted to the channel, thereby reducing the complexity of the terminal in eliminating inter-channel interference. Therefore, by precoding the data to be transmitted, the quality of the received signal, such as the signal-to-interference-plus-noise ratio (SINR), can be improved.

[0101] The descriptions of precoding techniques in this application are merely illustrative for ease of understanding and are not intended to limit the scope of protection of the embodiments of this application. In specific implementations, network devices can also perform precoding in other ways. For example, when measurement results (such as the channel matrix) are unknown, precoding can be performed using a pre-set precoding matrix or a weighted processing method. For ease of understanding, the process of a network device determining a precoding matrix is ​​illustrated below with an example:

[0102] Network devices can determine the precoding matrix based on the channel matrix. This channel matrix can be determined based on channel estimation or channel reciprocity. For the former, the network device can transmit a downlink reference signal, enabling the terminal to perform channel estimation based on the downlink reference signal to obtain channel state information (CSI), and then send a CSI report. In this way, the network device determines the precoding matrix based on the CSI report from the terminal. For example, the network device can determine the precoding matrix based on the precoding matrix indicator (PMI) in the CSI report. For the latter, the terminal can transmit an uplink reference signal, enabling the network device to obtain the channel matrix based on the uplink reference signal from the terminal and determine the precoding matrix based on the channel matrix. For example, the network device can obtain the precoding matrix by performing singular value decomposition (SVD) based on the channel matrix or its covariance matrix, or by performing eigenvalue decomposition (EVD) based on the covariance matrix of the channel matrix; the method is not limited here.

[0103] The methods for determining the precoding matrix listed above are merely examples and should not be construed as limiting this application. In one possible implementation, the precoding matrix determined by the network device may be the same as or similar to the precoding matrix determined by the terminal. The higher the similarity between the precoding matrix determined by the network device and the precoding matrix determined by the terminal, the better the precoding matrix used for data transmission is adapted to the channel conditions, thus improving the signal reception quality.

[0104] The embodiments of this application are described in detail below. The execution entity involved in the embodiments of this application can be a first communication device and a second communication device. The first communication device or the second communication device can be... Figure 1 or Figure 2 Any two devices capable of communication are permitted. The specific names of the first and second communication devices are not limited in this application. As an example, the first communication device may be a terminal, a chip or functional module of a terminal, etc., and the second communication device may be a network device, a chip or functional module of a network device, etc. As another example, the first communication device may be a network device, a chip or functional module of a network device, and the second communication device may be a terminal, a chip or functional module of a terminal. As yet another example, the first and second communication devices may be different terminals or network devices, etc. Specific forms of the first and second communication devices are not listed here. For ease of description, this application uses the example of the first communication device as a terminal and the second communication device as a network device to illustrate the embodiments, and this should not be considered a limitation of this application.

[0105] See Figure 5 , Figure 5 This is a flowchart illustrating a communication method provided in an embodiment of this application. For example... Figure 5 As shown, the method includes, but is not limited to, the following steps:

[0106] 501. The network device sends first information, which is used to indicate at least two resources, including a first resource and a second resource. The first resource is used to perform channel measurement on a first antenna panel group, and the second resource is used to perform channel measurement on a second antenna panel group.

[0107] Accordingly, the terminal receives the first information.

[0108] The first information indicates at least two resources, i.e., two or more resources, used for channel measurements on different antenna panel groups. For ease of description, this application uses the example of 'two resources (i.e., the first resource and the second resource) being used to perform channel measurements on two antenna panel groups (i.e., the first antenna panel group and the second antenna panel group)', which should not be considered a limitation of this application. In one possible implementation, the use of a resource (such as the first resource or the second resource) for channel measurement on an antenna panel group can be described as: the resource is used to perform channel measurement on a reference signal transmitted by the antenna panel group. For example, the first resource being used for channel measurement on the first antenna panel group can be described as: the first resource is used to perform channel measurement on a reference signal transmitted by the first antenna panel group. Similarly, the second resource being used for channel measurement on the second antenna panel group can be described as: the second resource is used to perform channel measurement on a reference signal transmitted by the second antenna panel group.

[0109] In one possible implementation, the first information may further include channel feedback parameters of the first resource and channel feedback parameters of the second resource, wherein the channel feedback parameters of the first resource and the channel feedback parameters of the second resource are different. For example, the channel feedback parameters of the first resource are used to indicate the phase information of the first antenna panel group, and the channel feedback parameters of the second resource are used to indicate the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group. The 'phase information of the first antenna panel group' and the 'bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group' will be described further below, and will not be described here.

[0110] In one possible implementation, the channel feedback parameters of the first resource are used to indicate the phase information of the first antenna panel group, or can be described as follows: the channel feedback parameters of the first resource are used to instruct the terminal to report the phase information of the first antenna panel group. Similarly, the channel feedback parameters of the second resource are used to indicate the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group, or can be described as follows: the channel feedback parameters of the second resource are used to instruct the terminal to report the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group.

[0111] In one possible implementation, a channel feedback parameter mentioned in this application can be represented by a codebook type used for channel measurement. The codebook type can be an existing codebook type and / or a newly added codebook type. Existing codebook types can be codebook types in existing versions of communication standards, such as type I multi-panel. Newly added codebook types can be newly defined codebook types, such as fold-angle.

[0112] For example, taking the representation of 'channel feedback parameters of the first resource and channel feedback parameters of the second resource' through codebook type as an example, the channel feedback parameters of the first resource can be represented by typeI-MultiPanel, that is, typeI-MultiPanel can instruct the terminal to report the phase information of the first antenna panel group. In other words, 'the first information includes the channel feedback parameters of the first resource' can be replaced with: the first information includes typeI-MultiPanel. Similarly, the channel feedback parameters of the second resource can be represented by fold-angle, that is, fold-angle can instruct the terminal to report the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group. In other words, 'the first information includes the channel feedback parameters of the second resource' can be replaced with: the first information includes fold-angle. This application does not limit the names of 'typeI-MultiPanel' and 'fold-angle'.

[0113] In one possible implementation, the first information may also include other information besides those listed above. For example, the first information may also include the period type of the reference signal and / or the identifier of the reference signal, etc., which will not be listed here. The period type of the reference signal may be periodic, aperiodic, or semi-static.

[0114] In one possible implementation, the first information may be carried in radio resource control (RRC) signaling, downlink control information (DCI), media access control-control element (MAC CE), or other signaling; this application does not limit this. Here, the RRC signaling may be RRC configuration signaling, RRC reconfiguration signaling, or other RRC signaling; this application does not limit this. In one possible implementation, when the first information is carried in RRC signaling, the first information may be called configuration information, such as CSI-RS configuration information. Alternatively, the first information may be called reconfiguration information, such as CSI-RS reconfiguration information; this application does not limit this.

[0115] The following section introduces the relevant content of the first antenna panel assembly.

[0116] In one possible implementation, the first antenna panel group may include multiple antenna panels, wherein any two antenna panels in the first antenna panel group have the same antenna panel characteristics or the difference between them is less than a threshold. For example, taking the antenna panel characteristics as attitude information (i.e., the angle between the plane where the antenna panel is located and the reference plane) as an example, the angle between the plane where any two antenna panels in the first antenna panel group are located and the reference plane is the same.

[0117] The first antenna panel group may include a first antenna panel and other antenna panels, such as one or more other antenna panels. In one possible implementation, the first antenna panel may be any one of the antenna panels in the first antenna panel group, or the indices of the antenna ports in the first antenna panel may be lower than the indices of the antenna ports in the other antenna panels; this application does not limit this.

[0118] In one possible implementation, the phase information of the first antenna panel group includes the phase information of the first antenna panel and the phase offset information of the other antenna panels relative to the first antenna panel.

[0119] The phase information of the first antenna panel may include the phases of multiple antenna ports within the first antenna panel. For example, the phase information of the first antenna panel may include the phases of multiple antenna ports within the first antenna panel in a first polarization direction (such as horizontal polarization, vertical polarization, left-handed polarization, or right-handed polarization) and / or a second polarization direction (such as horizontal polarization, vertical polarization, left-handed polarization, or right-handed polarization). For example, the phase information of the first antenna panel may include the phases of some antenna ports in the first polarization direction and the phases of other antenna ports in the second polarization direction, which enables the network device to determine the precoding information of the antenna ports within the first antenna panel. For example, taking a first antenna panel group where each antenna panel contains 32 antenna ports as an example, the polarization directions of the 1st to 16th antenna ports in the first antenna panel are the first polarization directions, and the polarization directions of the 17th to 32nd antenna ports in the first antenna panel are the second polarization directions. The phase information of the first antenna panel may include the phase of the first antenna port to the 16th antenna port in the first antenna panel in the first polarization direction and the phase of the 17th antenna port to the 32nd antenna port in the first antenna panel in the second polarization direction.

[0120] In this application, the first polarization direction and the second polarization direction are different. For example, the first polarization direction is a horizontal polarization direction, and the second polarization direction is a vertical polarization direction. Or, the first polarization direction is a vertical polarization direction, and the second polarization direction is a horizontal polarization direction. Or, the first polarization direction is a left-handed polarization direction, and the second polarization direction is a right-handed polarization direction. Or, the first polarization direction is a right-handed polarization direction, and the second polarization direction is a left-handed polarization direction.

[0121] In one possible implementation, the phase information of the first antenna panel can also be referred to as the phase information or phase factor within the first antenna panel, and can be represented by (l, m). Alternatively, the phase information of the first antenna panel can include the values ​​of (l, m), or the phase information of the first antenna panel can include the indices of l and / or m. l belongs to 0~O1*N1-1. m belongs to 0~O2*N2-1. N1 is the number of antenna ports of the first antenna panel in the lateral direction (also known as the horizontal direction). O1 represents the oversampling factor or factor of the discrete Fourier transform (DFT) in the lateral direction. N2 is the number of antenna ports of the first antenna panel in the longitudinal direction (also known as the vertical direction), and O2 represents the oversampling factor or factor of the DFT in the longitudinal direction. O1 and O2 can be positive integers. For example, O1 and O2 can be 1, 2, 3, 4, or other values. The lateral direction mentioned in this application can be parallel to the lateral direction of a certain antenna panel, and the longitudinal direction mentioned in this application can be parallel to the longitudinal direction of a certain antenna panel. For example, in... Figure 6 In this diagram, the center of the antenna panel is taken as the origin of the coordinate system. The horizontal direction of the antenna panel is the horizontal axis, and the vertical direction of the antenna panel is the vertical axis. The antenna panel has 6 antenna ports in the horizontal direction and 7 antenna ports in the vertical direction.

[0122] The phase offset information of other antenna panels in the first antenna panel group relative to the first antenna panel may include the phase offset of the other antenna panels relative to the first antenna panel in a first polarization direction or a second polarization direction, or the phase offset of the antenna ports in the other antenna panels relative to the corresponding antenna ports in the first antenna panel in a first polarization direction or a second polarization direction, enabling the network device to determine the precoding information of the antenna ports in the other antenna panels. The phase offset here may be the same as or less than a threshold. For example, taking a first antenna panel group where each antenna panel contains 32 antenna ports as an example, the polarization direction of the first antenna panel and the 16th antenna ports in the other antenna panels is the first polarization direction, and the polarization direction of the 17th antenna ports in the first antenna panel and the 32nd antenna ports in the other antenna panels is the second polarization direction. The phase offsets of the first antenna port in the first antenna panel with the first antenna port in other antenna panels in the first polarization direction, the phase offsets of the second antenna port in the first antenna panel with the second antenna port in other antenna panels in the first polarization direction, ... the phase offsets of the 32nd antenna port in the first antenna panel with the 32nd antenna port in other antenna panels in the second polarization direction, are all the same or less than a threshold. In this case, the phase offsets between the 32 antenna ports in the first antenna panel and the 32 antenna ports in other antenna panels can be represented by the overall phase offset between antenna panels. In one possible implementation, the phase offset information of other antenna panels in the first antenna panel group relative to the first antenna panel can also be called the inter-panel phase information or phase factor in the first antenna panel group, which can be adopted using... This indicates that, in other words, the phase offset information of other antenna panels in the first antenna panel group relative to the first antenna panel can include... The value or index of. g represents the g-th panel group, i.e., the first antenna panel group. This represents the phase offset of the p1-th antenna panel in the g-th panel group relative to the 1st antenna panel in the first polarization direction or the second polarization direction. This represents the phase offset of the p2-th antenna panel in the g-th panel group relative to the 1st antenna panel in the first polarization direction or the second polarization direction, ... This indicates the p-th element in the g-th panel group. L-1 The phase offset of each antenna panel relative to the first antenna panel in the first polarization direction or the second polarization direction. L is the total number of antenna panels in the first antenna panel group. Optionally, the first antenna panel may be the first antenna panel.

[0123] In one possible implementation, the phase offset information of the other antenna panels relative to the first antenna panel can be 0 or other values. When the phase offset information of the other antenna panels relative to the first antenna panel is 0, the phase information of the first antenna panel group may not include the phase offset information of the other antenna panels relative to the first antenna panel.

[0124] Optionally, the phase offset involved in this application can be used to indicate the relative difference, scaling factor, or other implementation between one value and another. For example, the phase offset information of other antenna panels in the first antenna panel group relative to the first antenna panel may include the relative difference or scaling factor between the phase corresponding to the other antenna panels and the phase corresponding to the first antenna panel in the polarization direction.

[0125] In this application, the phase offset may be replaced with other descriptions, such as phase offset value (referred to as offset value), phase difference (referred to as difference), phase increment (referred to as increment), phase decrement (referred to as decrement), phase error (referred to as error), or phase deviation (referred to as deviation), etc., and this application does not limit the comparison.

[0126] The following is an introduction to the relevant content of the second day's line panel group.

[0127] In one possible implementation, the second antenna panel group may include multiple antenna panels, and the number of antenna panels in the first antenna panel group and the number of antenna panels in the second antenna panel group may be the same or different. Specifically, any two antenna panels in the second antenna panel group have the same antenna panel characteristics or a difference less than a threshold. For example, taking the antenna panel characteristics as attitude information (i.e., the angle between the plane containing the antenna panel and the reference plane), the angle between the plane containing any two antenna panels in the second antenna panel group and the reference plane is the same.

[0128] In one possible implementation, the antenna panel characteristics of any antenna panel in the first antenna panel group are different from or the difference in characteristic of any antenna panel in the second antenna panel group is greater than a threshold. For example, taking the antenna panel characteristics as attitude information (i.e., the angle between the plane where the antenna panel is located and the reference plane), the angle between the plane where the antenna panel is located and the reference plane is different from the angle between the plane where the antenna panel is located and the reference plane in the second antenna panel group. In this case, the bending angle information of the second antenna panel group relative to the first antenna panel group may include the bending angle values ​​of the second antenna panel group relative to the first antenna panel group in the lateral and / or longitudinal directions, so that the network device can determine the bending angle values ​​of different antenna panel groups in the corresponding directions.

[0129] In one possible implementation, the lateral bending angle value of the second antenna panel group relative to the first antenna panel group can include the lateral bending angle value of the antenna panel in the second antenna panel group relative to the corresponding antenna panel in the first antenna panel group. This bending angle value can be the same as or less than a threshold. For example, taking a first antenna panel group and a second antenna panel group each comprising nine antenna panels, the lateral bending angle value between the 0th antenna panel in the first antenna panel group and the 0th antenna panel in the second antenna panel group, the lateral bending angle value between the 1st antenna panel in the first antenna panel group and the 1st antenna panel in the second antenna panel group, ..., the lateral bending angle value between the 9th antenna panel in the first antenna panel group and the 9th antenna panel in the second antenna panel group, are all the same as or less than the threshold. In this case, the lateral bending angle values ​​of the nine antenna panels in the first antenna panel group and the nine antenna panels in the second antenna panel group can be represented by the overall bending angle value between the antenna panel groups. In one possible implementation, the lateral bending angle value of the second antenna panel group relative to the first antenna panel group can be represented by α. α can be 0 or other values.

[0130] In one possible implementation, the bending angle value of the second antenna panel group relative to the first antenna panel group in the longitudinal direction can include the bending angle value of the antenna panel in the second antenna panel group relative to the corresponding antenna panel in the first antenna panel group in the longitudinal direction. This bending angle value can be the same as or less than a threshold. For example, taking a first antenna panel group and a second antenna panel group each comprising 9 antenna panels as an example, the bending angle value in the longitudinal direction between the 0th antenna panel in the first antenna panel group and the 0th antenna panel in the second antenna panel group, the bending angle value in the longitudinal direction between the 1st antenna panel in the first antenna panel group and the 1st antenna panel in the second antenna panel group, ..., the bending angle value in the longitudinal direction between the 9th antenna panel in the first antenna panel group and the 9th antenna panel in the second antenna panel group, are all the same as or less than the threshold. In this case, the bending angle values ​​in the longitudinal direction of the 9 antenna panels in the first antenna panel group and the 9 antenna panels in the second antenna panel group can be represented by the overall bending angle value between the antenna panel groups. In one possible implementation, the bending angle value of the second antenna panel group relative to the first antenna panel group in the longitudinal direction can be represented by β. β can be 0 or other values.

[0131] In one possible implementation, if the bending angle of the second antenna panel group relative to the first antenna panel group in the lateral or longitudinal direction is 0, the first communication device may further transmit second information. Wherein, if the bending angle of the second antenna panel group relative to the first antenna panel group in the lateral direction is 0, the second information is used to indicate the longitudinal direction. If the bending angle of the second antenna panel group relative to the first antenna panel group in the longitudinal direction is 0, the second information is used to indicate the lateral direction. Optionally, the lateral or longitudinal direction can be indicated by different values ​​of the second information or by different values ​​of some bits. For example, the lateral or longitudinal direction can be indicated by one or more bits in the second information. For instance, if the second information is 1 bit, a '0' indicates the lateral direction, and a '1' indicates the longitudinal direction. Or, a '1' indicates the lateral direction, and a '0' indicates the longitudinal direction.

[0132] In one possible implementation, the second information may be carried in RRC signaling, uplink control information (UCI) or other signaling, without limitation.

[0133] In one possible implementation, the bending angle of the second antenna panel group relative to the first antenna panel group in the lateral direction is 0. The bending angle information of the second antenna panel group relative to the first antenna panel group may include the bending angle value of the second antenna panel group relative to the first antenna panel group in the longitudinal direction. For example, this bending angle information may only include the bending angle value of the second antenna panel group relative to the first antenna panel group in the longitudinal direction. Similarly, the bending angle information of the second antenna panel group relative to the first antenna panel group in the longitudinal direction is 0, and may include the bending angle value of the second antenna panel group relative to the first antenna panel group in the lateral direction. For example, this bending angle information may only include the bending angle value of the second antenna panel group relative to the first antenna panel group in the lateral direction.

[0134] In one possible implementation, the second antenna panel group may also have phase offset information relative to the first antenna panel group. This phase offset information may include the phase offset of the second antenna panel group relative to the first antenna panel group in a first polarization direction or a second polarization direction, or the phase offset of any antenna port in the second antenna panel group relative to any antenna port in the first antenna panel group in the first polarization direction or a second polarization direction. For example, consider a scenario where both the first and second antenna panel groups comprise two antenna panels, and each antenna panel contains 32 antenna ports. The polarization direction of the first to the 16th antenna ports in each antenna panel is the first polarization direction, and the polarization direction of the 17th to the 32nd antenna ports in each antenna panel is the second polarization direction. The phase offset information of the second antenna panel group relative to the first antenna panel group may include the phase offset between the first antenna port of antenna panel 1 in the first antenna panel group and the first antenna port of antenna panel 1 in the second antenna panel group in the first polarization direction, or the phase offset between the second antenna port of antenna panel 1 in the first antenna panel group and the second antenna port of antenna panel 1 in the second antenna panel group in the first polarization direction, ..., or the phase offset between the 32nd antenna port of antenna panel 2 in the first antenna panel group and the 32nd antenna port of antenna panel 2 in the second antenna panel group in the second polarization direction. In one possible implementation, the phase offset information of the second antenna panel group relative to the first antenna panel group may also be referred to as inter-group phase information or phase factor, and may be represented by γ. Alternatively, the phase offset information of the second antenna panel group relative to the first antenna panel group may include the value or index of γ.

[0135] In one possible implementation, the phase offset information of the second antenna panel group relative to the first antenna panel group can be 0 or other values. When the phase offset information of the second antenna panel group relative to the first antenna panel group is 0, the channel feedback parameters of the second resource may not indicate the phase offset information of the second antenna panel group relative to the first antenna panel group. For example, the channel feedback parameters of the second resource may only indicate the bending angle information of the second antenna panel group relative to the first antenna panel group.

[0136] 502. The terminal performs channel measurements on the first antenna panel group and the second antenna panel group on the first resource and the second resource respectively to obtain a first measurement result. The first measurement result includes the phase information of the first antenna panel group, the bending angle information of the second antenna panel group relative to the first antenna panel group, and the phase offset information.

[0137] For example, the terminal can receive a reference signal from the first antenna panel group on the first resource and perform channel measurements based on the reference signal to obtain the phase information of the first antenna panel group. Similarly, the terminal can also receive a reference signal from the second antenna panel group on the second resource and perform channel measurements based on the reference signal to obtain the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group. The phase information of the first antenna panel group, the bending angle information of the second antenna panel group relative to the first antenna panel group, and the phase offset information, etc., can be referred to the relevant description in step 501, and will not be repeated here.

[0138] In one possible implementation, the reference signal is CSI-RS, and the first measurement result may be included in the CSI or a CSI report. For example, at least one of the phase information of the first antenna panel group, the bending angle information of the second antenna panel group relative to the first antenna panel group, and the phase offset information may be included in the PMI, which is included in the CSI or a CSI report.

[0139] Optionally, the measurement results involved in this application (such as the first measurement result or the second measurement result, etc.) can be replaced with other terms, such as measurement report, measurement quantity, measured channel information, channel information, or channel state information, etc., and this application does not limit them.

[0140] In one possible implementation, the first measurement result and the aforementioned second information can be carried in the same signaling or different signaling. This signaling can be RRC signaling, UCI signaling, or other signaling. Alternatively, the first measurement result can also include the second information, with the first measurement result carried in RRC signaling, UCI signaling, or other signaling.

[0141] 503. The terminal sends the first measurement result.

[0142] Accordingly, the network device receives the first measurement result. In one possible implementation, the network device can also determine the combining coefficients of the antenna port (such as the CSI-RS port), DFT vector, and space-frequency vector used to construct the precoding vector based on the first measurement result, thereby determining the corresponding precoding matrix and adjusting the beamforming for the terminal. For example, the network device can determine the phase information of the second antenna panel group based on the phase information of the first antenna panel group, the bending angle information of the second antenna panel group relative to the first antenna panel group, and the phase offset information. Therefore, it can determine the combining coefficients of the antenna port, DFT vector, and space-frequency vector used to construct the precoding vector based on the phase information of the first and second antenna panel groups, thereby determining the corresponding precoding matrix. The content of the phase information of the second antenna panel group is similar to that of the phase information of the first antenna panel group, and will not be elaborated further here.

[0143] In one possible implementation, the precoding matrix mentioned in this application can be used directly for downlink data transmission, or it can be processed by some beamforming methods, such as zero forcing (ZF), regularized zero-forcing (RZF), minimum mean-squared error (MMSE), or signal-to-leakage-and-noise ratio (SLNR), to obtain the final precoding matrix for downlink data transmission. This application does not limit this.

[0144] As can be seen, in the above embodiments, the network device can send first information, enabling the terminal to perform channel measurements on the first antenna panel group and the second antenna panel group respectively on the resources indicated by the first information, obtain measurement results, and then send the measurement results. The measurement results include the phase information of the first antenna panel group, the bending angle information of the second antenna panel group relative to the first antenna panel group, and the phase offset information. That is, the terminal completely feeds back the phase information of the first antenna panel group, such as the phase of each antenna port included in each antenna panel of the first antenna panel group. For the second antenna panel group, the terminal can feed back the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group. This is equivalent to feeding back the phase information of the second antenna panel group, such as the phase of each antenna port included in each antenna panel of the second antenna panel group, which can reduce the feedback amount corresponding to the second antenna panel group, thereby reducing the feedback overhead of the measurement results.

[0145] See Figure 7 , Figure 7 This is a flowchart illustrating another communication method provided in an embodiment of this application. For example... Figure 7 As shown, the method includes, but is not limited to, the following steps:

[0146] 701. The network device sends phase information of the reference antenna panel group.

[0147] Accordingly, the terminal receives the phase information of the reference antenna panel group.

[0148] The reference antenna panel group can include multiple reference antenna panels, and the antenna in each reference antenna panel can be a virtual logical antenna, that is, an antenna not deployed by the network device. In other words, the reference antenna panels in the reference antenna panel group are virtual antenna panels located on an ideal reference plane.

[0149] In one possible implementation, the antenna panel features of any two reference antenna panels in the reference antenna panel group are identical or the difference is less than a threshold. For example, taking the antenna panel feature as attitude information (i.e., the angle between the plane where the reference antenna panel is located and the reference plane) as an example, the angle between the plane where any two reference antenna panels are located and the reference plane in the reference antenna panel group is the same.

[0150] The reference antenna panels in the reference antenna panel group may include a first reference antenna panel and other reference antenna panels besides the first reference antenna panel, such as one or more other reference antenna panels. In one possible implementation, the first reference antenna panel may be any one of the reference antenna panels in the reference antenna panel group, or the indices of the antenna ports in the first reference antenna panel may all be lower than the indices of the antenna ports in the other reference antenna panels; this application does not limit this.

[0151] In one possible implementation, the phase information of the reference antenna panel group includes the phase information of the first reference antenna panel and the phase offset information of the other reference antenna panels relative to the first reference antenna panel.

[0152] The phase information of the first reference antenna panel may include the phases of multiple antenna ports within the first reference antenna panel. For example, the phase information of the first reference antenna panel may include the phases of multiple antenna ports within the first reference antenna panel in a first polarization direction (such as horizontal polarization direction, vertical polarization direction, left-handed polarization direction, or right-handed polarization direction) and / or a second polarization direction (such as horizontal polarization direction, vertical polarization direction, left-handed polarization direction, or right-handed polarization direction). For example, the phase information of the first reference antenna panel may include the phases of some antenna ports in the first polarization direction and the phases of other antenna ports in the second polarization direction. For example, taking a first reference antenna panel containing 32 antenna ports as an example, the polarization directions of the 1st to 16th antenna ports in the first reference antenna panel are the first polarization directions, and the polarization directions of the 17th to 32nd antenna ports in the first reference antenna panel are the second polarization directions. The phase information of the first reference antenna panel may include the phase of the first antenna port to the 16th antenna port in the first reference antenna panel in the first polarization direction and the phase of the 17th antenna port to the 32nd antenna port in the first reference antenna panel in the second polarization direction.

[0153] In one possible implementation, the phase information of the first reference antenna panel can also be referred to as the phase information or phase factor within the first reference antenna panel, and can be represented by (l0, m0). Alternatively, the phase information of the first reference antenna panel can include the values ​​of (l0, m0), or the phase information of the first reference antenna panel can include the indices of l0 and / or m0. l0 belongs to 0 to O3*N3-1. m0 belongs to 0 to O4*N4-1. N3 is the number of antenna ports of the reference antenna panel in the lateral direction (also known as the horizontal direction). O3 represents the DFT oversampling factor or factor in the lateral direction. N4 is the number of antenna ports of the reference antenna panel in the longitudinal direction (also known as the vertical direction), and O4 represents the DFT oversampling factor or factor in the longitudinal direction. O3 and O4 can be positive integers. For example, O3 and O4 can be 1, 2, 3, 4, or other values.

[0154] The phase offset information of other reference antenna panels in the reference antenna panel group relative to the first reference antenna panel may include the phase offset of the other reference antenna panels relative to the first reference antenna panel in a first polarization direction or a second polarization direction, or the phase offset of the antenna ports in the other reference antenna panels relative to the corresponding antenna ports in the first reference antenna panel in a first polarization direction or a second polarization direction. The phase offset here may be the same as or less than a threshold. For example, taking a reference antenna panel group where each reference antenna panel contains 32 antenna ports as an example, the polarization direction of the first to the 16th antenna ports in the first and other reference antenna panels is the first polarization direction, and the polarization direction of the 17th to the 32nd antenna ports in the first and other reference antenna panels is the second polarization direction. The phase offsets of the first antenna port in the first reference antenna panel with the first antenna ports in other reference antenna panels in the first polarization direction, the phase offsets of the second antenna ports in the first reference antenna panel with the second antenna ports in other reference antenna panels in the first polarization direction, ... the phase offsets of the 32nd antenna port in the first reference antenna panel with the 32nd antenna ports in other reference antenna panels in the second polarization direction are all the same or less than a threshold. In this case, the phase offsets between the 32 antenna ports in the first reference antenna panel and the 32 antenna ports in other reference antenna panels can be represented by the overall phase offset between the reference antenna panels. In one possible implementation, the phase offset information of other reference antenna panels in the reference antenna panel group relative to the first reference antenna panel can also be called the phase information or phase factor between reference antenna panels in the reference antenna panel group, which can be adopted using... This indicates that, in other words, the phase offset information of other reference antenna panels in the reference antenna panel group relative to the first reference antenna panel can include... The value or index of. g0 represents the g0th panel group, i.e., the reference antenna panel group. This represents the phase offset of the p1-th reference antenna panel in the g0-th panel group relative to the 1st reference antenna panel in the first polarization direction or the second polarization direction. This represents the phase offset of the p2th reference antenna panel in the g0th panel group relative to the 1st reference antenna panel in the first polarization direction or the second polarization direction, ... This indicates the g0th panel group. The phase offset of each reference antenna panel relative to the first reference antenna panel in the first polarization direction or the second polarization direction. L0 is the total number of reference antenna panels in the reference antenna panel group. Optionally, the first reference antenna panel may be the first reference antenna panel.

[0155] In one possible implementation, the phase offset information of the other reference antenna panels relative to the first reference antenna panel can be 0 or other values. When the phase offset information of the other reference antenna panels relative to the first reference antenna panel is 0, the phase information of the reference antenna panel group may not include the phase offset information of the other reference antenna panels relative to the first reference antenna panel.

[0156] 702. The network device sends third information, which is used to indicate at least one resource, and the at least one resource is used to perform channel measurements on at least one antenna panel group.

[0157] Accordingly, the terminal receives third information.

[0158] The third piece of information is used to indicate at least one resource, i.e., one or more resources, with different resources used for channel measurements on different antenna panel groups. This is similar to the description of step 501 above, and will not be repeated here.

[0159] In one possible implementation, the third information further includes channel feedback parameters for at least one resource, wherein the channel feedback parameters for at least one resource are identical. For example, the channel feedback parameters for at least one resource are used to indicate the bending angle information and phase offset information of at least one antenna panel group relative to a reference antenna panel group. That is, the channel feedback parameters for each resource are used to indicate the bending angle information and phase offset information of an antenna panel group relative to a reference antenna panel group. The bending angle information and phase offset information of at least one antenna panel group relative to a reference antenna panel group will be described further below and will not be described here.

[0160] In one possible implementation, the channel feedback parameters for each resource are used to indicate the bending angle information and phase offset information of an antenna panel group relative to a reference antenna panel group. Alternatively, the channel feedback parameters for each resource can be described as follows: the channel feedback parameters for each resource are used to instruct the terminal to report the bending angle information and phase offset information of an antenna panel group relative to a reference antenna panel group.

[0161] In one possible implementation, the channel feedback parameters for each resource can be represented by a codebook type used for channel measurements. For example, the channel feedback parameters for each resource can be represented by a fold-angle, whereby the fold-angle can instruct the terminal to report the bending angle information of an antenna panel group relative to a reference antenna panel group, as well as phase offset information. That is, 'the third information includes the channel feedback parameters of at least one resource' can be replaced with: the third information includes the fold-angle.

[0162] In one possible implementation, the third information may also include other content besides those listed above. For example, the third information may also include the period type of the reference signal and / or the identifier of the reference signal, etc., which will not be listed here. The period type of the reference signal may be periodic, aperiodic, or semi-static.

[0163] In one possible implementation, the third information can be carried in RRC signaling, DCI, MAC CE, or other signaling, and this application does not limit this. Here, the RRC signaling can be RRC configuration signaling, RRC reconfiguration signaling, or other RRC signaling, and this application does not limit this. In one possible implementation, when the third information is carried in RRC signaling, the third information can be called configuration information, such as CSI-RS configuration information. Alternatively, the third information can be called reconfiguration information, such as CSI-RS reconfiguration information, and this application does not limit this.

[0164] The following section describes the bending angle information and phase offset information of at least one antenna panel group relative to the reference antenna panel group.

[0165] In one possible implementation, each antenna panel group may include multiple antenna panels, and any two antenna panels in each antenna panel group have the same antenna panel characteristics or a difference less than a threshold. For example, taking the antenna panel characteristics as attitude information (i.e., the angle between the plane where the antenna panel is located and the reference plane), the angle between the plane where any two antenna panels are located and the reference plane is the same. Optionally, the number of antenna panels in different antenna panel groups may be the same or different.

[0166] In one possible implementation, the antenna panel characteristics of any two antenna panels in different antenna panel groups are different or the difference is greater than a threshold. For example, taking the antenna panel characteristics as attitude information (i.e., the angle between the plane where the antenna panel is located and the reference plane), the angle between the plane where any two antenna panels are located and the reference plane is different in different antenna panel groups.

[0167] In one possible implementation, at least one antenna panel group may have bending angle information relative to a reference antenna panel group. The bending angle information of each antenna panel group relative to the reference antenna panel group may include the bending angle values ​​of each antenna panel group relative to the reference antenna panel group in the lateral and / or longitudinal directions.

[0168] In one possible implementation, the lateral bending angle value of each antenna panel group relative to the reference antenna panel group can include the lateral bending angle value of each antenna panel in each antenna panel group relative to the corresponding antenna panel in the reference antenna panel group. This bending angle value can be the same as or less than a threshold. For example, taking a reference antenna panel group and antenna panel group 0 each containing 9 antenna panels as an example, the lateral bending angle value of the 0th antenna panel in the reference antenna panel group and the 0th antenna panel in antenna panel group 0, the lateral bending angle value of the 1st antenna panel in the reference antenna panel group and the 1st antenna panel in antenna panel group 0, ... the lateral bending angle value of the 9th antenna panel in the reference antenna panel group and the 9th antenna panel in antenna panel group 0, are all the same as or less than the threshold. In this case, the lateral bending angle values ​​of the 9 antenna panels in the reference antenna panel group and the 9 antenna panels in antenna panel group 0 can be represented by the overall bending angle value between the antenna panel groups. In one possible implementation, the bending angle of each antenna panel group relative to the reference antenna panel group in the lateral direction can be represented by α0. α0 can be 0 or other values.

[0169] In one possible implementation, the bending angle value of each antenna panel group relative to the reference antenna panel group in the longitudinal direction can include the bending angle value of the antenna panel in each antenna panel group relative to the corresponding antenna panel in the reference antenna panel group in the longitudinal direction. Here, the bending angle value can be the same as or less than a threshold. For example, taking a reference antenna panel group and antenna panel group 0 each containing 9 antenna panels as an example, the bending angle value in the longitudinal direction between the 0th antenna panel in the reference antenna panel group and the 0th antenna panel in antenna panel group 0, the bending angle value in the longitudinal direction between the 1st antenna panel in the reference antenna panel group and the 1st antenna panel in antenna panel group 0, ... the bending angle value in the longitudinal direction between the 9th antenna panel in the reference antenna panel group and the 9th antenna panel in antenna panel group 0, are all the same as or less than the threshold. In this case, the bending angle values ​​in the longitudinal direction of the 9 antenna panels in the reference antenna panel group and the 9 antenna panels in antenna panel group 0 can be represented by the overall bending angle value between the antenna panel groups. In one possible implementation, the bending angle of each antenna panel group relative to the reference antenna panel group in the longitudinal direction can be represented by β0. β0 can be 0 or other values.

[0170] In one possible implementation, the bending angle of each antenna panel group relative to the reference antenna panel group in the lateral or longitudinal direction is 0, and the first communication device may further transmit fourth information. The bending angle of each antenna panel group relative to the reference antenna panel group in the lateral direction is 0, and the fourth information is used to indicate the longitudinal direction. Alternatively, the lateral or longitudinal direction can be indicated by different values ​​of the fourth information or by different values ​​of some bits. For example, the lateral or longitudinal direction can be indicated by one or more bits in the fourth information. For instance, the fourth information is 1 bit; if the fourth information is '0', the lateral direction is indicated; if the fourth information is '1', the longitudinal direction is indicated. Or, the fourth information is '1', the lateral direction is indicated; if the fourth information is '0', the longitudinal direction is indicated.

[0171] In one possible implementation, the fourth information may be carried in RRC signaling, UCI or other signaling, without limitation.

[0172] In one possible implementation, the bending angle of each antenna panel group relative to the reference antenna panel group in the lateral direction is 0. The bending angle information of each antenna panel group relative to the reference antenna panel group may include the bending angle value of each antenna panel group relative to the reference antenna panel group in the longitudinal direction. For example, this bending angle information may only include the bending angle value of each antenna panel group relative to the reference antenna panel group in the longitudinal direction. Similarly, the bending angle information of each antenna panel group relative to the reference antenna panel group in the longitudinal direction is 0, and may include the bending angle value of each antenna panel group relative to the reference antenna panel group in the lateral direction. For example, this bending angle information may only include the bending angle value of each antenna panel group relative to the reference antenna panel group in the lateral direction.

[0173] In one possible implementation, each antenna panel group may also have phase offset information relative to the reference antenna panel group. This phase offset information may include the phase offset of each antenna panel group relative to the reference antenna panel group in a first polarization direction or a second polarization direction, or the phase offset of any antenna port in each antenna panel group relative to any antenna port in the reference antenna panel group in the first polarization direction or the second polarization direction, enabling the network device to determine the precoding information of the antenna ports in each antenna panel group. For example, consider a reference antenna panel group and antenna panel group 0, both comprising two antenna panels, each containing 32 antenna ports. The polarization direction of the first to sixteenth antenna ports in each antenna panel is the first polarization direction, and the polarization direction of the seventeenth to thirty-second antenna ports in each antenna panel is the second polarization direction. The phase offset information of each antenna panel group relative to the reference antenna panel group may include the phase offset of the first antenna port of reference antenna panel 1 in the reference antenna panel group with the first antenna port of antenna panel 1 in antenna panel group 0 in the first polarization direction, or the phase offset of the second antenna port of reference antenna panel 1 in the reference antenna panel group with the second antenna port of antenna panel 1 in antenna panel group 0 in the first polarization direction, ..., or the phase offset of the 32nd antenna port of reference antenna panel 2 in the reference antenna panel group with the 32nd antenna port of antenna panel 2 in antenna panel group 0 in the second polarization direction. In one possible implementation, the phase offset information of each antenna panel group relative to the reference antenna panel group may also be called inter-group phase information or phase factor, which may be represented by γ0. Alternatively, the phase offset information of each antenna panel group relative to the reference antenna panel group may include the value or index of γ.

[0174] In one possible implementation, the phase offset information of each antenna panel group relative to the reference antenna panel group can be 0 or other values. When the phase offset information of each antenna panel group relative to the reference antenna panel group is 0, the channel feedback parameters for each resource may not indicate the phase offset information of each antenna panel group relative to the reference antenna panel group. For example, the channel feedback parameters for each resource may only indicate the bending angle information of each antenna panel group relative to the reference antenna panel group.

[0175] 703. The terminal performs channel measurements on at least one antenna panel group on at least one resource based on the phase information of the reference antenna panel group to obtain a second measurement result. The second measurement result includes the bending angle information of at least one antenna panel group relative to the reference antenna panel group and the phase offset information.

[0176] For example, the terminal can receive a reference signal from the corresponding antenna panel group on each resource, and perform channel measurements based on the reference signal to obtain the bending angle information and phase offset information of the antenna panel group relative to the reference antenna panel group. The bending angle information and phase offset information of the antenna panel group relative to the reference antenna panel group can be found in the relevant description of step 702, and will not be repeated here.

[0177] In one possible implementation, the reference signal is CSI-RS, and the second measurement result can be included in the CSI or a CSI report. For example, bending angle information and / or phase offset information of at least one antenna panel group relative to a reference antenna panel group can be included in the PMI, which is included in the CSI or a CSI report.

[0178] In one possible implementation, the second measurement result and the aforementioned fourth information can be carried in the same signaling or different signaling. This signaling can be RRC signaling, UCI signaling, or other signaling. Alternatively, the second measurement result can also include the fourth information, with the second measurement result carried in RRC signaling, UCI signaling, or other signaling.

[0179] 704. The terminal sends the second measurement result.

[0180] Accordingly, the network device receives the second measurement result. In one possible implementation, the network device can also determine the combining coefficients of the antenna ports (such as CSI-RS ports), DFT vectors, and space-frequency vectors used to construct the precoding vectors based on the second measurement result, thereby determining the corresponding precoding matrix and adjusting the beamforming for the terminal. For example, the network device can determine the phase information of each antenna panel group based on the phase information of the reference antenna panel group, the bending angle information of each antenna panel group relative to the reference antenna panel group, and the phase offset information, thereby determining the combining coefficients of the antenna ports, DFT vectors, and space-frequency vectors used to construct the precoding vectors based on the phase information of each antenna panel group, and thus determining the corresponding precoding matrix. The content of the phase information of each antenna panel group is similar to that of the phase information of the first antenna panel group described above, and will not be repeated here.

[0181] As can be seen, in the above embodiments, the network device can send phase information of the reference antenna panel group and third information, enabling the terminal to perform channel measurements on at least one antenna panel group on the resources indicated by the third information based on the phase information of the reference antenna panel group, obtain measurement results, and then send the measurement results. The measurement results include bending angle information and phase offset information of at least one antenna panel group relative to the reference antenna panel group. That is, for each antenna panel group, the terminal can feed back the bending angle information and phase offset information of each antenna panel group relative to the reference antenna panel group. Compared to feeding back the phase of each antenna port included in each antenna panel of each antenna panel group, this reduces the feedback amount for each antenna panel group, thereby reducing the feedback overhead of the measurement results.

[0182] Optionally, to achieve the aforementioned functions, the device includes corresponding hardware structures and / or software modules for performing each function. Those skilled in the art will readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0183] This application embodiment can divide the terminal or network device into functional modules according to the above method examples. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0184] See Figure 8 , Figure 8 This is a schematic diagram of a communication device provided in an embodiment of this application. The communication device 800 can be applied to the above-described... Figure 5 or Figure 6 In the method shown in the embodiment, as Figure 8As shown, the communication device 800 includes a processing module 801 and a transceiver module 802. The processing module 801 may be one or more processors, and the transceiver module 802 may be a transceiver or a communication interface. This communication device can be used to implement the terminal or network device involved in any of the above method embodiments, or to implement the functions of the network element involved in any of the above method embodiments. The network element or network function can be a network component in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (e.g., a cloud platform). Optionally, the communication device 800 may also include a storage module 803 for storing the program code and data of the communication device 800. It should be understood that regardless of whether these functional modules are subdivided or combined, the general flow performed by the communication device 800 in implementing any of the above method embodiments is the same. For example, the transceiver module 802 in the above communication device 800 may include a receiving module and / or a sending module; of course, the transceiver module may also be called a communication module. In one implementation, each module can have its own program code (or program instructions). When the program code corresponding to each module is run on the processor, it causes the unit to execute the corresponding process to achieve the corresponding function.

[0185] In one example, when the communication device functions as a terminal or is a chip used in a terminal, i.e., a chip for a terminal, it executes the steps performed by the terminal in the above method embodiments. The transceiver module 802 is used for specific execution. Figure 5 or Figure 6 The illustrated embodiments represent sending and / or receiving actions performed by the terminal, such as supporting the terminal in performing other processes of the techniques described herein. The processing module 801 can be used to support the communication device 800 in performing the processing actions in the above method embodiments, for example, supporting the terminal in performing other processes of the techniques described herein.

[0186] For example, transceiver module 802 is used to receive first information, which indicates at least two resources, including a first resource and a second resource. The first resource is used to perform channel measurements on a first antenna panel group, and the second resource is used to perform channel measurements on a second antenna panel group. Processing module 801 is used to perform channel measurements on the first and second resources respectively to obtain a first measurement result. Transceiver module 802 is also used to transmit the first measurement result. The first measurement result includes phase information of the first antenna panel group, bending angle information of the second antenna panel group relative to the first antenna panel group, and phase offset information.

[0187] Optionally, the transceiver module 802 is further configured to transmit second information. In this second information, the bending angle of the second antenna panel group relative to the first antenna panel group in the lateral direction is 0, and the second information is used to indicate the longitudinal direction. Alternatively, the bending angle of the second antenna panel group relative to the first antenna panel group in the longitudinal direction is 0, and the second information is used to indicate the lateral direction.

[0188] For example, transceiver module 802 is configured to: receive phase information of a reference antenna panel group; receive third information, the third information indicating at least one resource, the at least one resource being used for channel measurement of at least one antenna panel group. Processing module 801 is configured to perform channel measurement on at least one antenna panel group on at least one resource based on the phase information of the reference antenna panel group to obtain a second measurement result; transceiver module 802 is further configured to transmit the second measurement result. The second measurement result includes bending angle information and phase offset information of at least one antenna panel group relative to the reference antenna panel group.

[0189] Optionally, the transceiver module 802 is further configured to transmit fourth information. In this case, at least one antenna panel group has a bending angle of 0 in the lateral direction relative to a reference antenna panel group, and the fourth information is used to indicate the longitudinal direction. Alternatively, at least one antenna panel group has a bending angle of 0 in the longitudinal direction relative to a reference antenna panel group, and the fourth information is used to indicate the lateral direction.

[0190] In one example, when the communication device functions as a network device or is a chip used in a network device (i.e., a chip used in a network device), it executes the steps performed by the network device in the above method embodiments. The transceiver module 802 is used for specific execution. Figure 5 or Figure 6 The actions of sending and / or receiving performed by the network device in the illustrated embodiments may include, for example, other processes that support the network device in performing the techniques described herein. The processing module 801 may be used to support the communication device 800 in performing the processing actions in the above method embodiments, for example, to support the network device in performing other processes that support the techniques described herein.

[0191] For example, the transceiver module 802 is configured to: transmit first information, the first information indicating at least two resources, the at least two resources including a first resource and a second resource, the first resource being used to perform channel measurement on a first antenna panel group, and the second resource being used to perform channel measurement on a second antenna panel group; and receive a first measurement result, the first measurement result including phase information of the first antenna panel group, bending angle information of the second antenna panel group relative to the first antenna panel group, and phase offset information, wherein the phase information of the first antenna panel group is obtained by performing channel measurement on the first resource, and the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group are obtained by performing channel measurement on the second resource.

[0192] Optionally, the transceiver module 802 is also configured to receive second information. In this second information, the bending angle of the second antenna panel group relative to the first antenna panel group in the lateral direction is 0, and the second information is used to indicate the longitudinal direction. Alternatively, the bending angle of the second antenna panel group relative to the first antenna panel group in the longitudinal direction is 0, and the second information is used to indicate the lateral direction.

[0193] For example, the transceiver module 802 is configured to: transmit phase information of a reference antenna panel group; transmit third information, the third information indicating at least one resource, the at least one resource being used for channel measurement of at least one antenna panel group; and receive a second measurement result. The second measurement result includes bending angle information and phase offset information of at least one antenna panel group relative to the reference antenna panel group, the bending angle information and phase offset information of at least one antenna panel group relative to the reference antenna panel group being obtained by performing channel measurements on at least one resource for each of the at least one antenna panel group.

[0194] Optionally, the transceiver module 802 is further configured to receive fourth information. In this case, at least one antenna panel group has a bending angle of 0 in the lateral direction relative to a reference antenna panel group, and the fourth information is used to indicate the longitudinal direction. Alternatively, at least one antenna panel group has a bending angle of 0 in the longitudinal direction relative to a reference antenna panel group, and the fourth information is used to indicate the lateral direction.

[0195] In one possible implementation, when the aforementioned device is a chip, such as a modem chip, a system-on-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip; or, when the aforementioned device is a communication module, the transceiver module 802 can be a communication interface, pins, or circuits. The communication interface can be used to input data to be processed to the processor and can output the processor's processing results. Specifically, the communication interface can be a general-purpose input / output (GPIO) interface, which can connect to multiple peripheral devices (such as a liquid crystal display (LCD), camera, radio frequency (RF) module, antenna, etc.). The communication interface is connected to the processor via a bus.

[0196] The processing module 801 may be a processing circuit, which may be one or more processors, or all or part of the circuitry within one or more processors used for control and / or processing. The processing circuit or processor may execute computer execution instructions stored in the storage module to cause the chip to perform... Figure 5 or Figure 6The method involved in the illustrated embodiment. Further, the processor may include a controller, an arithmetic logic unit (ALU), and registers. Exemplarily, the controller is primarily responsible for instruction decoding and issuing control signals for the operations corresponding to the instructions. The ALU is primarily responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, and can also perform address operations and translations. Registers are primarily responsible for storing register operands and intermediate operation results temporarily stored during instruction execution. In specific implementations, the processor's hardware architecture can be an application-specific integrated circuit (ASIC) architecture, a microprocessor without interlocked piped stages architecture (MIPS) architecture, an advanced reduced instruction set machine (RISC) machine (ARM) architecture, or a network processor (NP) architecture, etc. The processor can be single-core or multi-core. The storage module can be an in-chip storage module, such as registers or caches. Storage modules can also be external to the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.

[0197] Optionally, the functions of the processor and interface can be implemented through hardware design, software design, or a combination of hardware and software; no restrictions are imposed here.

[0198] Figure 9 This is a schematic diagram of another communication device provided in an embodiment of this application. It is understood that the communication device 910 includes necessary means such as modules, units, elements, circuits, or interfaces, appropriately configured together to execute this solution. The communication device 910 can be the aforementioned terminal or network device, or a component (e.g., a chip) within these devices, used to implement the methods described in the above method embodiments. The communication device 910 includes one or more processors 911. The processor 911 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, while the central processing unit can be used to control the communication device (e.g., a terminal, network device, or chip), execute software programs, and process data from the software programs.

[0199] Optionally, in one design, the processor 911 may include a program 913 (sometimes also referred to as code or instructions), which can be executed on the processor 911 to cause the communication device 910 to perform the methods described in the above embodiments. In yet another possible design, the communication device 910 includes circuitry (…). Figure 9 (Not shown), the circuit is used to implement the functions of the terminal, network device, etc. in the above embodiments. Optionally, the communication device 910 may include one or more memories 912, on which a program 914 (sometimes also referred to as code or instructions) is stored. The program 914 can be run on the memory 912, causing the communication device 910 to perform the methods described in the above method embodiments.

[0200] Optionally, data may also be stored in the processor 911 and / or the memory 912. The processor and memory may be configured separately or integrated together.

[0201] Optionally, if the communication device 910 is a terminal or network device, it may also include a transceiver 915 and / or an antenna 916. The processor 911, sometimes referred to as a processing unit, controls the communication device (e.g., a terminal or network device). The transceiver 915, sometimes referred to as a transceiver unit, transceiver, or transceiver circuit, is used to implement the transmission and reception functions of the communication device via the antenna 916. Optionally, the transceiver 915 may include a receiver and / or a transmitter. The receiver may be referred to as a receiving unit, receiver, or receiving circuit. The transmitter may be referred to as a transmitting unit, transmitter, or transmitting circuit.

[0202] Optionally, if the communication device 910 is a chip for a terminal or network device, the transceiver 915 can be a transceiver circuit, such as an input / output interface or a transceiver interface.

[0203] This application also provides a communication device, which includes at least one processor; wherein the at least one processor is configured to execute... Figure 5 or Figure 6 The method described in any of the illustrated embodiments.

[0204] This application also provides a computer-readable storage medium storing computer instructions, which, when executed, cause the computer to perform actions such as... Figure 5 or Figure 6 The method described in any of the illustrated embodiments.

[0205] This application also provides a computer program product, which includes: computer program code, which, when executed by a computer, causes the computer to perform actions such as... Figure 5 or Figure 6 The method described in any of the illustrated embodiments.

[0206] This application embodiment also provides a chip, which includes at least one processor and an interface. The processor is used to read and execute instructions stored in a memory. When the instructions are executed, the chip causes the chip to perform actions such as... Figure 5 or Figure 6 The method described in any of the illustrated embodiments.

[0207] Optionally, the processing performed by a single execution entity (terminal or network device) shown in any of the above embodiments can also be divided into multiple execution entities, which can be logically and / or physically separated. For example, the processing performed by the network device can be divided into execution by at least one of CU, DU, and RU.

[0208] Furthermore, the various embodiments of this application are merely illustrative examples of executing all the steps included, and should not be considered as specific limitations on this application. For example, the order of steps in various embodiments can be simply changed according to their function and internal logic; or, for example, all steps in various embodiments can be executed, or only a portion of them can be executed, as long as the same function as in the embodiments of this application can be achieved.

[0209] In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to a network device" can be understood as the destination of the information being the network device, which can include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from a network device" can be understood as the source of the information being the network device, which can include direct reception from the network device via the air interface or indirect reception from the network device via the air interface from other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0210] In other words, sending and receiving can occur between devices, such as between network devices and terminals; or they can occur within a device, such as between components, modules, chips, software modules, or hardware modules within a device via a bus, wiring, or interface.

[0211] In the embodiments of this application, "when," "if," "if," and "in the case of" all refer to the device making corresponding processing under certain objective circumstances, and are not limited to a time, nor do they require the device to make a judgment action when it is implemented, nor do they mean that there are other limitations.

[0212] In this application, the words “example,” “exemplarily,” “for example,” or “such as” are used to indicate that something is an example, illustration, or description. Any embodiment or design described as “example,” “exemplarily,” “for example,” or “such as” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words “example,” “exemplarily,” “for example,” or “such as” is intended to present the relevant concepts in a specific manner.

[0213] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, The method is applied to a terminal device or a chip in the terminal device, and the method includes: Receive first information, the first information being used to indicate at least two resources, the at least two resources including a first resource and a second resource, the first resource being used to perform channel measurements on a first antenna panel group, and the second resource being used to perform channel measurements on a second antenna panel group; Channel measurements are performed on the first antenna panel group and the second antenna panel group on the first resource and the second resource, respectively, to obtain a first measurement result. The first measurement result includes the phase information of the first antenna panel group, the bending angle information of the second antenna panel group relative to the first antenna panel group, and the phase offset information. Send the first measurement result.

2. A communication method, characterized in that, The method is applied to a network device or a chip in the network device, and the method includes: Send a first message, the first message being used to indicate at least two resources, the at least two resources including a first resource and a second resource, the first resource being used to perform channel measurements on a first antenna panel group, and the second resource being used to perform channel measurements on a second antenna panel group; The first measurement result is received. The first measurement result includes the phase information of the first antenna panel group, the bending angle information of the second antenna panel group relative to the first antenna panel group, and the phase offset information. The phase information of the first antenna panel group is obtained by performing channel measurement on the first resource. The bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group are obtained by performing channel measurement on the second resource.

3. The method according to claim 1 or 2, characterized in that, The first information also includes channel feedback parameters of the at least two resources, wherein the channel feedback parameters of the first resource are different from those of the second resource.

4. The method according to claim 3, characterized in that, The channel feedback parameters of the first resource are used to indicate the phase information of the first antenna panel group, and the channel feedback parameters of the second resource are used to indicate the bending angle information and phase offset information of the second antenna panel group relative to the first antenna panel group.

5. The method according to any one of claims 1-4, characterized in that, The first antenna panel group includes multiple antenna panels, the multiple antenna panels including a first antenna panel and other antenna panels other than the first antenna panel, and the phase information of the first antenna panel group includes the phase information of the first antenna panel and the phase offset information of the other antenna panels relative to the first antenna panel.

6. The method according to claim 5, characterized in that, The phase information of the first antenna panel includes the phase of multiple antenna ports within the first antenna panel.

7. The method according to any one of claims 1-6, characterized in that, The bending angle information of the second antenna panel group relative to the first antenna panel group includes the bending angle value of the second antenna panel group relative to the first antenna panel group in the lateral direction and / or the bending angle value of the second antenna panel group relative to the first antenna panel group in the longitudinal direction.

8. The method according to claim 7, characterized in that, The method is applied to a terminal device or a chip in the terminal device, and the method further includes: Send a second message; Wherein, the bending angle of the second antenna panel group relative to the first antenna panel group in the lateral direction is 0, and the second information is used to indicate the longitudinal direction; or, The bending angle of the second antenna panel group relative to the first antenna panel group in the longitudinal direction is 0, and the second information is used to indicate the lateral direction.

9. The method according to claim 7, characterized in that, The method is applied to a network device or a chip in the network device, and the method further includes: Receive the second message; Wherein, the bending angle of the second antenna panel group relative to the first antenna panel group in the lateral direction is 0, and the second information is used to indicate the longitudinal direction; or, The bending angle of the second antenna panel group relative to the first antenna panel group in the longitudinal direction is 0, and the second information is used to indicate the lateral direction.

10. A communication method, characterized in that, The method is applied to a terminal device or a chip in a terminal device, and the method includes: Receive phase information from the reference antenna panel group; Receive third information, the third information being used to indicate at least one resource, the at least one resource being used to perform channel measurements on at least one antenna panel group; Based on the phase information of the reference antenna panel group, channel measurements are performed on the at least one antenna panel group on the at least one resource to obtain a second measurement result. The second measurement result includes the bending angle information and phase offset information of the at least one antenna panel group relative to the reference antenna panel group. Send the second measurement result.

11. A communication method, characterized in that, The method is applied to a network device or a chip in a network device, and the method includes: Transmit phase information of the reference antenna panel group; Send a third message, the third message being used to indicate at least one resource, the at least one resource being used to perform channel measurements on at least one antenna panel group; Receive a second measurement result, the second measurement result including bending angle information and phase offset information of the at least one antenna panel group relative to the reference antenna panel group, the bending angle information and phase offset information of the at least one antenna panel group relative to the reference antenna panel group are obtained by performing channel measurements on the at least one resource respectively.

12. The method according to claim 10 or 11, characterized in that, The third information also includes the channel feedback parameters of the at least one resource, and the channel feedback parameters of the at least one resource are the same.

13. The method according to claim 12, characterized in that, The channel feedback parameters of the at least one resource are used to indicate the bending angle information and phase offset information of the at least one antenna panel group relative to the reference antenna panel group.

14. The method according to any one of claims 10-13, characterized in that, The phase information of the reference antenna panel group includes multiple reference antenna panels, including a first reference antenna panel and other reference antenna panels besides the first reference antenna panel. The phase information of the reference antenna panel group includes the phase information of the first reference antenna panel and the phase offset information of the other reference antenna panels relative to the first reference antenna panel.

15. The method according to claim 14, characterized in that, The phase information of the first reference antenna panel includes the phase of multiple antenna ports within the first reference antenna panel.

16. The method according to any one of claims 10-15, characterized in that, The bending angle information of the at least one antenna panel group relative to the reference antenna panel group includes the bending angle value of the at least one antenna panel group relative to the reference antenna panel group in the lateral direction and / or the bending angle value of the at least one antenna panel group relative to the reference antenna panel group in the longitudinal direction.

17. The method according to claim 16, characterized in that, The method is applied to a terminal device or a chip in the terminal device, and the method further includes: Send the fourth message; Wherein, the bending angle of the at least one antenna panel group relative to the reference antenna panel group in the lateral direction is 0, and the fourth information is used to indicate the longitudinal direction; or, The bending angle of the at least one antenna panel group relative to the reference antenna panel group in the longitudinal direction is 0, and the fourth information is used to indicate the lateral direction.

18. The method according to claim 16, characterized in that, The method is applied to a network device or a chip in the network device, and the method further includes: Receive the fourth message; Wherein, the bending angle of the at least one antenna panel group relative to the reference antenna panel group in the lateral direction is 0, and the fourth information is used to indicate the longitudinal direction; or, The bending angle of the at least one antenna panel group relative to the reference antenna panel group in the longitudinal direction is 0, and the fourth information is used to indicate the lateral direction.

19. A communication device, characterized in that, It includes units or modules for implementing the method as described in any one of claims 1 or 3-8, or units or modules for implementing the method as described in any one of claims 2, 3-7 or 9, or units or modules for implementing the method as described in any one of claims 10 or 12-17, or units or modules for implementing the method as described in any one of claims 11, 12-16 or 18.

20. A communication device, characterized in that, The communication device includes at least one processor; wherein the at least one processor is configured to cause the communication device to perform the method of any one of claims 1 or 3-8, or the at least one processor is configured to cause the communication device to perform the method of any one of claims 2, 3-7 or 9, or the at least one processor is configured to cause the communication device to perform the method of any one of claims 10 or 12-17, or the at least one processor is configured to cause the communication device to perform the method of any one of claims 11, 12-16 or 18.

21. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions or programs that, when executed, cause the computer to perform the method as claimed in any one of claims 1 or 3-8, or the method as claimed in any one of claims 2, 3-7 or 9, or the method as claimed in any one of claims 10 or 12-17, or the method as claimed in any one of claims 11, 12-16 or 18.

22. A chip, characterized in that, The chip includes at least one processor, the processor being configured to execute computer instructions or programs that, when the computer instructions or programs are executed, cause the chip to perform the method as claimed in any one of claims 1 or 3-8, or cause the chip to perform the method as claimed in any one of claims 2, 3-7 or 9, or cause the chip to perform the method as claimed in any one of claims 10 or 12-17, or cause the chip to perform the method as claimed in any one of claims 11, 12-16 or 18.

23. A computer program product, characterized in that, When the computer program product is executed, it causes the computer to perform the method as claimed in any one of claims 1 or 3-8, or causes the computer to perform the method as claimed in any one of claims 2, 3-7 or 9, or causes the computer to perform the method as claimed in any one of claims 10 or 12-17, or causes the computer to perform the method as claimed in any one of claims 11, 12-16 or 18.

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