WO2022247483A1

WO2022247483A1 - Channel information reporting method and related apparatus

Info

Publication number: WO2022247483A1
Application number: PCT/CN2022/085662
Authority: WO
Inventors: 吴晔; 金黄平
Original assignee: 华为技术有限公司
Priority date: 2021-05-28
Filing date: 2022-04-07
Publication date: 2022-12-01
Also published as: CN115412139A

Abstract

The present application provides a channel information reporting method and a related apparatus. The method comprises: receiving a first reference signal from a network device; and sending first information to the network device, the first information indicating a first correspondence, the first correspondence comprising a correspondence between a first rank and a first antenna port set corresponding to the first reference signal, and the first correspondence being obtained by measurement according to the first reference signal. By means of implementation of embodiments of the present application, a channel state is accurately fed back in an ELAA scenario.

Description

A channel information reporting method and related device

This application claims the priority of the Chinese patent application filed with the Intellectual Property Office of the People's Republic of China on May 28, 2021, with the application number 202110590220.4, and the title of the invention is "A Method for Reporting Channel Information and Related Devices", the entire content of which is incorporated by reference incorporated in this application.

technical field

The present application relates to the field of communication technologies, and in particular to a method for reporting channel information and related devices.

Background technique

In an extremely large aperture array (ELAA), due to the large antenna aperture, the channel has spatial non-stationary characteristics, which makes the scatterers (multipaths) seen by each antenna different, as shown in Figure 1 , for terminal device 1, antenna panel A1 can see scatter C1, and antenna panel A2 can see scatter C1 and scatter C2. That is, in the ELAA scenario, due to spatial non-stationary characteristics, different antenna panels or antennas or antenna clusters may have different channel characteristics.

Generally speaking, the terminal device can feed back the CSI to the base station after measuring the channel state information (CSI) on the antenna port that sends the channel state information reference signal (CSI-RS). The CSI may generally include a precoding matrix indicator (precoding matrix indicator, PMI), a channel quality indicator (channel quality indicator, CQI) and a rank indicator (rank indicator, RI). That is, in the ELAA scenario, the terminal device also feeds back the CSI to the base station. However, in the ELAA scenario, different antenna panels or antennas or antenna clusters correspond to different channel characteristics. If the terminal device still feeds back CSI to the base station, it may not be able to accurately feed back the channel status in the ELAA scenario. Therefore, how to achieve accurate feedback of the channel state in the ELAA scenario has become an urgent technical problem to be solved at the current stage.

Contents of the invention

The present application provides a method for reporting channel information and a related device, which realize accurate feedback of channel status in an ELAA scenario.

In the first aspect, a method for reporting channel information is provided, including:

receiving a first reference signal from a network device;

sending first information to the network device, the first information indicating a first correspondence, the first correspondence including a correspondence between a first rank and a first set of antenna ports corresponding to the first reference signal , the first corresponding relationship is obtained by measuring the first reference signal.

It can be seen that, in the above technical solution, the terminal device may receive the first reference signal from the network device, so that the terminal device may send the first information indicating the first correspondence to the network device. It can be understood that since the first correspondence includes the correspondence between the first rank and the first antenna port set corresponding to the first reference signal, the first correspondence is obtained by measuring the first reference signal, thus realizing the ELAA scenario The corresponding relationship between the first rank and the first antenna port set corresponding to the first reference signal is fed back, so that the feedback of the channel state is more accurate.

Optionally, the first information further indicates a second correspondence, where the second correspondence includes a correspondence between a second rank and a second antenna port set corresponding to the first reference signal, and the second The corresponding relationship is obtained by measuring the first reference signal.

It can be seen that in the above technical solution, the first information also indicates the second correspondence, and the second correspondence includes the correspondence between the second rank and the second antenna port set corresponding to the first reference signal, that is, the terminal device can also Reporting the second corresponding relationship enables the network device to learn different corresponding relationships, thereby improving the accuracy of channel state feedback.

Optionally, the antenna ports in the first antenna port set are partly the same as the antenna ports in the second antenna port set.

Optionally, the antenna ports in the first antenna port set are included in a first logical antenna port group, the first logical antenna port group includes at least one antenna port group, and the first information further indicates that the first Correspondence between logical antenna port groups and rank numbers corresponding to the first logical antenna port group.

It can be seen that in the above technical solution, overhead can be saved by feeding back the correspondence between the first logical antenna port group and the rank number corresponding to the first logical antenna port group.

Optionally, the antenna ports in the second antenna port set are included in a second logical antenna port group, and the second logical antenna port group includes at least one antenna port group, and the first information further indicates that the second Correspondence between logical antenna port groups and rank numbers corresponding to the second logical antenna port group.

It can be seen that in the above technical solution, overhead can be saved by feeding back the correspondence between the second logical antenna port group and the rank number corresponding to the second logical antenna port group.

Optionally, the antenna port groups in the first logical antenna port group are partly the same as the antenna port groups in the second logical antenna port group.

Optionally, the first information also indicates the strength order of the first signal quality and the second signal quality, the first signal quality corresponds to the first rank, and the second signal quality corresponds to the second rank .

In the second aspect, a method for reporting channel information is provided, including:

sending the first reference signal to the terminal device;

receiving first information from the terminal device, the first information indicating a first correspondence, the first correspondence including a correspondence between a first rank and a first antenna port set corresponding to the first reference signal , the first corresponding relationship is obtained by measuring the first reference signal.

In a third aspect, a terminal device is provided, where the terminal device includes a transceiver module, and the transceiver module is configured to receive a first reference signal from a network device;

In a fourth aspect, a network device is provided, where the network device includes a transceiver module, and the transceiver module is configured to send a first reference signal to a terminal device;

In a fifth aspect, a communication device is provided, including a processor, a memory, an input interface, and an output interface, the input interface is used to receive information from other communication devices other than the communication device, and the output interface is used to send information to Other communication devices other than the communication device output information, and the processor invokes the computer program stored in the memory to implement the method according to the first aspect or the second aspect.

In a possible design, the communication device may be a chip for implementing the method in the first aspect or the second aspect, or a device including the chip.

In a sixth aspect, a computer-readable storage medium is provided, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is run, the method described in any one of the first aspect or the second aspect is realized. method.

According to a seventh aspect, a communication system is provided, and the communication system includes the above-mentioned terminal device and/or the above-mentioned network device.

Description of drawings

The following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art.

in:

Figure 1 is a schematic diagram of visible scatterers of different antenna panels in the ELAA scene;

Fig. 2 is the infrastructure of the communication system provided by the embodiment of the present application;

FIG. 3 is a schematic diagram of a hardware structure applicable to a communication device provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a method for reporting channel information provided by an embodiment of the present application;

Fig. 5 is a schematic diagram of a symbol of an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a simplified terminal device provided in an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a simplified network device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Wherein, the terms "system" and "network" in the embodiments of the present application may be used interchangeably. Unless otherwise specified, "/" means that the related objects are an "or" relationship, for example, A/B can mean A or B; "and/or" in this application is only a way to describe related objects Associative relationship means that there may be three kinds of relationships, for example, A and/or B, which may mean: A exists alone, A and B exist simultaneously, and B exists independently, where A and B can be singular or plural. And, in the description of the present application, unless otherwise specified, "plurality" means two or more than two. "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 item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple . In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order, and words such as "first" and "second" do not necessarily limit the difference.

References to "one embodiment" or "some embodiments" and the like described in the embodiments of the present application mean that specific features, structures or characteristics described in connection with the embodiments are included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically stated otherwise.

Some partial nouns (or communication terms) involved in this application are explained below.

1. The first reference signal

The first reference signal may include: a channel state information reference signal (channel state information reference signal, CSI-RS), a cell specific reference signal (cell specific reference signal, CS-RS), a UE specific reference signal (user equipment specific reference signal, US-RS), demodulation reference signal (demodulation reference signal, DMRS), and synchronization signal/physical broadcast channel block (synchronization signal/physical broadcast channel block, SS/PBCH block) or other reference signals, which are not limited here. Wherein, the SS/PBCH block may be referred to as a synchronization signal block (synchronization signal block, SSB) for short.

2. Antenna port

The antenna port may be referred to as a port for short. It can be understood as a transmitting antenna identified by a receiving device, or a transmitting antenna that can be distinguished in space. An antenna port can be pre-configured for each virtual antenna, and each virtual antenna can be a weighted combination of multiple physical antennas, and each antenna port can correspond to a reference signal. Therefore, each antenna port can be called a reference signal Ports, such as CSI-RS ports, etc.

Exemplarily, the first antenna port set corresponding to the first reference signal may be understood as: the first CSI-RS port set corresponding to the first reference signal. Similarly, the second antenna port set corresponding to the first reference signal may be understood as: the second CSI-RS port set corresponding to the first reference signal.

Wherein, in this application, the antenna port set may include one or more antenna ports. The antenna port set includes one or more antenna ports, which can be understood as: the antenna port set includes one or more antenna port groups, and one antenna port group includes one or more antenna ports.

Exemplarily, the first antenna port set includes 10 antenna ports. The first antenna port set includes 10 antenna ports, which can be understood as: the first antenna port set includes 2 antenna port groups, and one antenna port group may include 5 antenna ports.

It should be noted that in this application, the antenna port set and the number of antenna ports specifically included in an antenna port group may be specified by the protocol or configured by the base station, and are not limited here.

3. Quasi co-location (quasi co-location, QCL) assumption

The definition of QCL is "Two antenna ports are said to be quasi-co-located if the properties of the channel through which symbols on one antenna port are transmitted can be deduced from the channel through which symbols on the other antenna port are transmitted". It can be understood that, in this application, the QCL assumptions of the first antenna port set and the second antenna port set may be the same or different, and there is no limitation here.

In order to facilitate the understanding of the present application, relevant technical knowledge involved in the embodiments of the present application is introduced here.

In the New Radio (NR) system, the channel state information (CSI) measurement of the multi-polarization antenna (MIMO) does not consider the non-stationary characteristics of the channel (that is, the CSI of MIMO is stationary in the NR system). After performing CSI measurement on all CSI-RS ports of MIMO (the number of all CSI-RS ports of MIMO is D), the terminal device may feed back CSI to the base station. Exemplarily, the terminal device may feed back a rank indicator (rank indicator, RI) to the base station. When the RI is fixed, the size of the precoding vectors of each rank is equal. For example, when RI=2, the quantized precoding matrix corresponding to the precoding matrix indicator (PMI) is as follows: |v ₁ v ₂ |. Wherein, the precoding vector v ₁ corresponds to the first rank, and its size is D×1; the precoding vector v ₂ corresponds to the second rank, and its size is D×1. That is, the sizes of the precoding vectors of the first rank and the second rank are equal. However, in the ELAA scenario, different antenna panels or antennas or antenna clusters correspond to different channel characteristics, that is, the size of the precoding vector of each rank may be different. If the terminal device still feeds back the RI to the base station, it may not be able to accurately feed back the channel status in the ELAA scenario. Therefore, how to achieve accurate feedback of the channel state in the ELAA scenario has become an urgent technical problem to be solved at the current stage.

Based on this, an embodiment of the present application proposes a method for reporting channel information to solve the above problem, and the following describes the embodiment of the present application in detail.

It should be understood that the technical solutions of the embodiments of the present application may be applied to ELAA scenarios, multiple transmission and reception point (transmission and reception point, TRP) joint transmission scenarios, or other scenarios, which are not limited here. Wherein, the TRP is used to send or receive signals, and the transmission and reception points include a transmission point (transmission point, TP) or a reception point (reception point, RP). Among them, TP is used for receiving signals, and RP is used for sending signals.

It can be understood that the technical solution of the embodiment of the present application can be applied to the long term evolution (long term evolution, LTE) architecture, the fifth generation mobile communication technology (5th generation mobile networks, 5G), the 4.5th generation mobile communication technology (the 4.5 generation mobile networks, 4.5G), wireless local area networks (wireless local area networks, WLAN) systems, etc. The technical solutions of the embodiments of the present application can also be applied to other communication systems in the future, such as 6G communication systems, etc. In the future communication systems, the functions may remain the same, but the names may be changed.

The basic structure of the communication system provided by the embodiment of the present application is introduced below. Referring to FIG. 2 , FIG. 2 is a basic architecture of a communication system provided by an embodiment of the present application. As shown in FIG. 2 , the communication system may include one or more network devices 10 (only one is shown) and one or more terminal devices 20 communicating with each network device 10 . FIG. 2 is only a schematic diagram, and does not constitute a limitation on the applicable scenarios of the technical solution provided in this application.

Wherein, the network device 10 is an entity on the network side for sending a signal, or receiving a signal, or sending a signal and receiving a signal. The network device 10 may be a device deployed in a radio access network (radio access network, RAN) to provide a wireless communication function for the terminal device 20, for example, it may be a transmission reception point (transmission reception point, TRP), a base station, various forms of control node. For example, a network controller, a wireless controller, a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, and the like. Specifically, the network equipment may be various forms of macro base stations, micro base stations (also called small stations), relay stations, access points (access point, AP), radio network controllers (radio network controller, RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseBand unit, BBU), transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), mobile switching center), etc., can also be the antenna panel of the base station. The control node can connect multiple base stations, and configure resources for multiple terminals under the coverage of multiple base stations. In systems adopting different radio access technologies, the names of the equipment with base station functions may be different. For example, it can be an evolved base station (evolutional node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or a wireless controller in a 5G gNB, or the network device 10 can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network-side device in a network after 5G or a network device in a future evolved PLMN network. The name is not limited.

Wherein, the terminal device 20 is an entity on the user side for receiving signals, or sending signals, or receiving signals and sending signals. The terminal device 20 is used to provide users with one or more of voice services and data connectivity services. The terminal device 20 may be a device that includes a wireless transceiver function and can cooperate with network devices to provide communication services for users. Specifically, the terminal equipment 20 may refer to a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a terminal, a wireless communication device, a user agent or user device. The terminal device 20 may also be a drone, an Internet of Things (Internet of Things, IoT) device, a station (station, ST) in a WLAN, a cellular phone (cellular phone), a smart phone (smart phone), a cordless phone, a wireless data Cards, tablet computers, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistant (PDA) devices, laptop computers ), machine type communication (machine type communication, MTC) terminals, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices (also known as wearable smart devices) , virtual reality (virtual reality, VR) terminal, augmented reality (augmented reality, AR) terminal, wireless terminal in industrial control (industrial control), wireless terminal in self driving (self driving), remote medical (remote medical) Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. The terminal device 20 may also be a device to device (device to device, D2D) device, for example, an electric meter, a water meter, and the like. The terminal device 20 may also be a terminal in a 5G system, or a terminal in a next-generation communication system, which is not limited in this embodiment of the present application.

The technical solutions provided by the embodiments of the present application are applicable to various system architectures. The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. For the evolution of architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

Optionally, each network element (such as network device 10, terminal device 20, etc.) in FIG. The embodiment does not specifically limit this. It can be understood that the above function can be a network element in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).

For example, each device in FIG. 2 can be implemented by the communication device 300 in FIG. 3 . FIG. 3 is a schematic diagram of a hardware structure applicable to a communication device provided by an embodiment of the present application. The communication device 300 includes at least one processor 301 , a communication line 302 , a memory 303 and at least one communication interface 304 .

The processor 301 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, a specific application integrated circuit (application-specific integrated circuit, ASIC), or one or more for controlling the execution of the application program program integrated circuit.

Communication line 302 may include a path for passing information between the above-described components.

The communication interface 304 is any device such as a transceiver (such as an antenna) for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (wireless local area networks, WLAN), etc.

Memory 303 may be read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM) or other types that can store information and instructions It can also be an electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be programmed by a computer Any other medium accessed, but not limited to. The memory may exist independently and be connected to the processor through the communication line 302 . Memory can also be integrated with the processor. The memory provided by the embodiment of the present application may generally be non-volatile.

Wherein, the memory 303 is used to store computer-executed instructions for implementing the solution of the present application, and the execution is controlled by the processor 301 . The processor 301 is configured to execute computer-executed instructions stored in the memory 303, so as to implement the methods provided in the following embodiments of the present application.

Optionally, the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which is not specifically limited in the embodiments of the present application.

In a possible implementation manner, the processor 301 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 3 .

In a possible implementation manner, the communications apparatus 300 may include multiple processors, for example, the processor 301 and the processor 307 in FIG. 3 . Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

In a possible implementation manner, the communication apparatus 300 may further include an output device 305 and an input device 306 . Output device 305 is in communication with processor 301 and can display information in a variety of ways. For example, the output device 305 may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a cathode ray tube (cathode ray tube, CRT) display device, or a projector (projector) Wait. The input device 306 communicates with the processor 301 and can receive user input in various ways. For example, the input device 306 may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.

The aforementioned communication device 300 may be a general-purpose device or a special-purpose device. In a specific implementation, the communication device 300 can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure in FIG. 3 equipment. The embodiment of the present application does not limit the type of the communication device 300 .

The technical solutions provided by the embodiments of the present application are described below with reference to the accompanying drawings.

Referring to FIG. 4 , FIG. 4 is a schematic flowchart of a method for reporting channel information provided by an embodiment of the present application. Wherein, the terminal device in FIG. 4 is the terminal device 20 in FIG. 2 , and the network device in FIG. 4 is the network device 10 in FIG. 2 . As shown in Figure 4, the method includes but is not limited to the following steps:

401. The network device sends the first reference signal to the terminal device.

Correspondingly, the terminal device receives the first reference signal from the network device.

Wherein, for the first reference signal, reference may be made to the above relevant description, and details are not repeated here.

402. The terminal device sends first information to the network device, the first information indicates the first correspondence, the first correspondence includes the correspondence between the first rank and the first antenna port set corresponding to the first reference signal, the first correspondence The relationship is measured from the first reference signal.

Correspondingly, the network device receives the first information from the terminal device.

Optionally, the first antenna port set corresponding to the first reference signal is a subset of all antenna port sets corresponding to the first reference signal. It can be understood that the set of all antenna ports corresponding to the first reference signal is the set of antenna ports for delivering the first reference signal. That is, in this application, the antenna port set is the antenna port set of the network device.

Wherein, the first antenna port set may include one or more antenna ports, which is not limited here.

Optionally, the first antenna port set includes one or more antenna ports, which can be understood as: the first antenna port set may include one or more antenna port groups, and one antenna port group may include one or more antenna ports.

Optionally, the first correspondence includes the correspondence between the first rank and the first antenna port set corresponding to the first reference signal, which can be understood as: the first correspondence includes the first index and the first antenna port set corresponding to the first reference signal A correspondence between antenna port sets. Wherein, the first index is used to indicate the first rank. It can be understood that in this application, the first rank may also be identified in other ways, which is not limited here.

Wherein, the first corresponding relationship is obtained by measuring the first reference signal, which can be understood as: the first rank is obtained by measuring the first reference signal, and the first reference signal corresponds to the first set of antenna ports.

Optionally, the first information also indicates a second correspondence, the second correspondence includes a correspondence between the second rank and the second antenna port set corresponding to the first reference signal, and the second correspondence is measured by the first reference signal get.

Optionally, the second antenna port set corresponding to the first reference signal is a subset of all antenna port sets corresponding to the first reference signal. It can be understood that, in this application, the union of the first antenna port set and the second antenna port set may be a subset or a complete set of all antenna port sets corresponding to the first reference signal, which is not limited here.

Wherein, the second antenna port set may include one or more antenna ports, which is not limited here.

Optionally, the second antenna port set includes one or more antenna ports, which can be understood as: the second antenna port set may include one or more antenna port groups, and one antenna port group may include one or more antenna ports.

It should be noted that in this application, the QCL assumptions of the first antenna port set and the second antenna port set may be the same or different, which is not limited here.

Optionally, the second correspondence includes a correspondence between the second rank and the second antenna port set corresponding to the first reference signal, which can be understood as: the second correspondence includes the second index corresponding to the first reference signal The correspondence between the two antenna port sets. Wherein, the second index is used to indicate the second rank. It can be understood that in this application, the second rank may also be identified in other ways, which is not limited here.

Optionally, the first antenna port set may include one or more antenna port groups, and the second antenna port set may include one or more antenna port groups. In this case, the first correspondence includes the correspondence between the first index and the first antenna port set corresponding to the first reference signal, which can be understood as: the first correspondence includes the first index and the first antenna port set Correspondence between one or more antenna port groups included. Similarly, the second correspondence includes the correspondence between the second index and the second antenna port set corresponding to the first reference signal, which can be understood as: the second correspondence includes the second index and one of the second antenna port sets included in the second index Or the correspondence between multiple antenna port groups.

Wherein, the second corresponding relationship is obtained by measuring the first reference signal, which can be understood as: the second rank is obtained by measuring the first reference signal, and the first reference signal may correspond to the second set of antenna ports.

Optionally, the antenna ports in the first antenna port set are partly the same as the antenna ports in the second antenna port set, or, the antenna ports in the first antenna port set are the same as the antenna ports in the second antenna port set The ports are all different, or the antenna ports in the first antenna port set are all the same as the antenna ports in the second antenna port set, which is not limited here.

Exemplarily, if all antenna port sets corresponding to the first reference signal may include antenna port group 1, antenna port group 2, antenna port group 3, and antenna port group 4. Wherein, each antenna port group in the antenna port group 1, the antenna port group 2, the antenna port group 3 and the antenna port group 4 may include 4 CSI-RS ports, for example. Specifically, refer to FIG. 5, which is a schematic diagram of an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol provided by an embodiment of the present application. It can be seen that the antenna port group 1, the antenna port group 2, the antenna port group 3 and the antenna port group 4 may respectively include 4 CSI-RS ports. In this case, for the corresponding relationship indicated by the first information, for example, refer to Table 1 or Table 2 or Table 3 or Table 4.

Table 1: Correspondence indicated by the first information

the	天线端口组1 Antenna Port Group 1	天线端口组2 Antenna Port Group 2	天线端口组3 Antenna Port Group 3	天线端口组4Antenna Port Group 4
第一索引0first index 0	the	YY	YY	YY
第二索引1 second index 1	the	YY	YY	the

Wherein, in Table 1, the first antenna port set may include antenna port group 2, antenna port group 3, and antenna port group 4, the second antenna port set may include antenna port group 2 and antenna port group 3, and the first correspondence may be Including the correspondence between the first index and the antenna port group 2, the antenna port group 3 and the antenna port group 4 included in the first antenna port set, the second correspondence includes the second index and the antenna port included in the second antenna port set Correspondence between group 2 and antenna port group 3. That is, it can be seen that the antenna ports in the first antenna port set are partly the same as the antenna ports in the second antenna port set. In addition, in combination with Table 1, it can be seen that there is a corresponding relationship between the first index (the first index is 0) and the antenna port group 2, the antenna port group 3, and the antenna port group 4. Then, the size of the precoding vector corresponding to the first rank indicated by the first index (the first index is 0) is the sum of the numbers of all antenna ports in the antenna port group 2, the antenna port group 3 and the antenna port group 4. That is, the size of the precoding vector corresponding to the first rank indicated by the first index (the first index is 0) is 12×1. The second index (the second index is 1) has a corresponding relationship with both the antenna port group 2 and the antenna port group 3 . Then, the size of the precoding vector corresponding to the second rank indicated by the second index (the second index is 1) is the sum of the numbers of all antenna ports in the antenna port group 2 and the antenna port group 3 . That is, the size of the precoding vector corresponding to the second rank indicated by the second index (the second index is 1) is 8×1.

Table 2: The corresponding relationship indicated by the first information

the	天线端口组1 Antenna Port Group 1	天线端口组2 Antenna Port Group 2	天线端口组3 Antenna Port Group 3	天线端口组4Antenna Port Group 4
第一索引2 first index 2	the	YY	YY	the

second index 3

the

Y

Wherein, in Table 2, the first antenna port set may include antenna port group 2 and antenna port group 3, the second antenna port set may include antenna port group 3 and antenna port group 4, and the first correspondence may include the first index and The correspondence between the antenna port group 2 and the antenna port group 3 included in the first antenna port set, and the second correspondence includes the correspondence between the second index and the antenna port group 3 and the antenna port group 4 included in the second antenna port set Correspondence. That is, it can be seen that the antenna ports in the first antenna port set are partly the same as the antenna ports in the second antenna port set. In addition, referring to Table 2, it can be seen that there is a corresponding relationship between the first index (the first index is 2) and both the antenna port group 2 and the antenna port group 3 . Then, the size of the precoding vector corresponding to the first rank indicated by the first index (the first index is 2) is the sum of the numbers of all antenna ports in the antenna port group 2 and the antenna port group 3 . That is, the size of the precoding vector corresponding to the first rank indicated by the first index (the first index is 2) is 8×1. The second index (the second index is 3) has a corresponding relationship with both the antenna port group 3 and the antenna port group 4 . Then, the size of the precoding vector corresponding to the second rank indicated by the second index (the second index is 3) is the sum of the numbers of all antenna ports in the antenna port group 3 and the antenna port group 4 . That is, the size of the precoding vector corresponding to the second rank indicated by the second index (the second index is 3) is 8×1.

Table 3: The corresponding relationship indicated by the first information

the	天线端口组1 Antenna Port Group 1	天线端口组2 Antenna Port Group 2	天线端口组3 Antenna Port Group 3	天线端口组4Antenna Port Group 4
第一索引4或5first index 4 or 5	the	the	YY	the
第二索引6second index 6	the	the	the	YY

Wherein, in Table 3, the first antenna port set may include antenna port group 3, the second antenna port set may include antenna port group 4, and the first correspondence may include the first index and the antenna port group included in the first antenna port set 3, the second correspondence includes the correspondence between the second index and the antenna port group 4 included in the second antenna port set. That is, it can be seen that the antenna ports in the first antenna port set are all different from the antenna ports in the second antenna port set. In addition, in combination with Table 3, it can be seen that there is a corresponding relationship between the first index (the first index is 4 or 5) and the antenna port group 3 . Then, the size of the precoding vector corresponding to the first rank indicated by the first index (the first index is 4 or 5) is the sum of the numbers of all antenna ports in the antenna port group 3 . That is, the size of the precoding vector corresponding to the first rank indicated by the first index (the first index is 4 or 5) is 4×1. There is a corresponding relationship between the second index (the second index is 6) and the antenna port group 4 . Then, the size of the precoding vector corresponding to the second rank indicated by the second index (the second index is 6) is the sum of the numbers of all antenna ports in the antenna port group 4 . That is, the size of the precoding vector corresponding to the second rank indicated by the second index (the second index is 6) is 4×1.

Table 4: Correspondence indicated by the first information

the	天线端口组1 Antenna Port Group 1	天线端口组2 Antenna Port Group 2	天线端口组3 Antenna Port Group 3	天线端口组4Antenna Port Group 4
第一索引5first index 5	the	the	YY	the
第二索引5second index 5	the	the	YY	the

Wherein, in Table 4, the first antenna port set may include antenna port group 3, the second antenna port set may include antenna port group 3, and the first correspondence may include the first index and the antenna port group included in the first antenna port set 3, the second correspondence includes the correspondence between the second index and the antenna port group 3 included in the second antenna port set. That is, it can be seen that the antenna ports in the first antenna port set are all the same as the antenna ports in the second antenna port set. In addition, there is a corresponding relationship between the first index (the first index is 5) and the antenna port group 3 . Then, the size of the precoding vector corresponding to the first rank indicated by the first index (the first index is 5) is the sum of the numbers of all antenna ports in the antenna port group 3 . That is, the size of the precoding vector corresponding to the first rank indicated by the first index (the first index is 5) is 4×1. There is a corresponding relationship between the second index (the second index is 5) and the antenna port group 3 . Then, the size of the precoding vector corresponding to the second rank indicated by the second index (the second index is 5) is the sum of the numbers of all antenna ports in the antenna port group 3 . That is, the size of the precoding vector corresponding to the second rank indicated by the second index (the second index is 5) is 4×1.

Optionally, the antenna ports in the first antenna port set are included in the first logical antenna port group, and the first logical antenna port group includes at least one antenna port group, and the first information also indicates that the first logical antenna port group and the first logical antenna port group Correspondence between rank numbers corresponding to antenna port groups.

Wherein, the antenna ports in the first antenna port set are included in the first logical antenna port group, and the first logical antenna port group includes at least one antenna port group, which can be understood as: the antenna ports in the first antenna port set are included in the first The logical antenna port group includes at least one antenna port group.

Exemplarily, the first logical antenna port group may include a first antenna port group and a second antenna port group, and the antenna ports in the first antenna port set may be included in the first antenna port group and/or the second antenna port group, There is no limitation here.

Optionally, the first information also indicates the correspondence between the first logical antenna port group and the rank number corresponding to the first logical antenna port group, which can be understood as: the first information also indicates the third index and the first logical antenna port Correspondence between rank numbers corresponding to groups, and the third index is used to indicate the first logical antenna port group. It can be understood that in this application, the first logical antenna port group may also be identified in other ways, which is not limited here.

Optionally, the antenna ports in the second antenna port set are included in the second logical antenna port group, and the second logical antenna port group includes at least two antenna port groups, and the first information also indicates that the second logical antenna port group is related to the second Correspondence between rank numbers corresponding to logical antenna port groups.

Wherein, the antenna ports in the second antenna port set are included in the second logical antenna port group, and the second logical antenna port group includes at least one antenna port group, which can be understood as: the antenna ports in the second antenna port set are included in the second The logical antenna port group includes at least one antenna port group.

Exemplarily, the second logical antenna port group may include a third antenna port group and a fourth antenna port group, and the antenna ports in the second antenna port group may be included in the third antenna port group and/or the fourth antenna port group, There is no limitation here.

Optionally, the first information also indicates the correspondence between the second logical antenna port group and the rank number corresponding to the second logical antenna port group, which can be understood as: the first information also indicates the fourth index and the second logical antenna port group Correspondence between rank numbers corresponding to groups, the fourth index is used to indicate the second logical antenna port group. It can be understood that in this application, the second logical antenna port group may also be identified in other ways, which is not limited here.

Optionally, the antenna port group in the first logical antenna port group is partially the same as the antenna port group in the second logical antenna port group, or, the antenna port group in the first logical antenna port group and the second logical antenna port group The antenna port groups in are all different, or the antenna port groups in the first logical antenna port group and the antenna port groups in the second logical antenna port group are all the same, which is not limited here.

Exemplarily, if all antenna port sets corresponding to the first reference signal may include antenna port group 1, antenna port group 2, antenna port group 3, and antenna port group 4. Wherein, each antenna port group in the antenna port group 1, the antenna port group 2, the antenna port group 3 and the antenna port group 4 may include 4 CSI-RS ports, for example. Different logical antenna port groups and their indexes can refer to Table 5, for example. Combining with Table 5, it can be seen that different logical antenna port groups have different corresponding indexes.

Table 5: Different logical antenna port groups and their indices

索引index	逻辑天线端口组Logical Antenna Port Group
00	天线端口组1、天线端口组2、天线端口组3和天线端口组4 Antenna Port Group 1, Antenna Port Group 2, Antenna Port Group 3, and Antenna Port Group 4
11	天线端口组1、天线端口组2和天线端口组3 Antenna Port Group 1, Antenna Port Group 2, and Antenna Port Group 3
22	天线端口组1、天线端口组2和天线端口组4 Antenna Port Group 1, Antenna Port Group 2, and Antenna Port Group 4
……...	……...
44	天线端口组2、天线端口组3和天线端口组4 Antenna Port Group 2, Antenna Port Group 3, and Antenna Port Group 4
55	天线端口组1和天线端口组2 Antenna Port Group 1 and Antenna Port Group 2
66	天线端口组1和天线端口组3 Antenna Port Group 1 and Antenna Port Group 3
……...	……...
1010	天线端口组3和天线端口组4 Antenna Port Group 3 and Antenna Port Group 4
1111	天线端口组1 Antenna Port Group 1
1212	天线端口组2 Antenna Port Group 2
1313	天线端口组3 Antenna Port Group 3
1414	天线端口组4Antenna Port Group 4

In the case of combining Table 5, the correspondence between the third index and the rank number corresponding to the first logical antenna port group, and the correspondence between the fourth index and the rank number corresponding to the second logical antenna port group, for example, may Refer to Table 6 or Table 7 or Table 8 or Table 9. It can be understood that the first logical antenna port group in Table 6 includes the first antenna port set in Table 1, and the second logical antenna port group in Table 6 includes the second antenna port set in Table 1; The first logical antenna port group contains the first antenna port set in Table 2, the second logical antenna port group in Table 7 contains the second antenna port set in Table 2; the first logical antenna port group in Table 8 contains the table The first antenna port set in Table 3, the second logical antenna port set in Table 8 includes the second antenna port set in Table 3; the first logical antenna port set in Table 9 includes the first antenna port set in Table 4 , the second logical antenna port group in Table 9 includes the second antenna port set in Table 4.

Table 6: Correspondence between the third index and the rank number corresponding to the first logical antenna port group, and correspondence between the fourth index and the rank number corresponding to the second logical antenna port group

Wherein, in combination with Table 6, it can be seen that the first logical antenna port group includes antenna port group 2, antenna port group 3, and antenna port group 4, and the second logical antenna port group includes antenna port group 2 and antenna port group 3, namely The antenna port groups in the first logical antenna port group are partly the same as the antenna port groups in the second logical antenna port group. In addition, the third index (the third index is 4) corresponds to the rank number (1) corresponding to the first logical antenna port group, and the fourth index (the fourth index is 8) corresponds to the rank number (1) corresponding to the second logical antenna port group 2) Correspondence.

Table 7: Correspondence between the third index and the rank number corresponding to the first logical antenna port group, and correspondence between the fourth index and the rank number corresponding to the second logical antenna port group

Wherein, in combination with Table 7, it can be seen that the first logical antenna port group includes antenna port group 2 and antenna port group 3, and the second logical antenna port group includes antenna port group 3 and antenna port group 4, that is, the first logical antenna port group The antenna port group in the group is partially identical to the antenna port group in the second logical antenna port group. In addition, the third index (the third index is 8) corresponds to the rank number (2) corresponding to the first logical antenna port group, and the fourth index (the fourth index is 10) corresponds to the rank number (2) corresponding to the second logical antenna port group 1) Correspondence.

Table 8: Correspondence between the third index and the rank number corresponding to the first logical antenna port group, and correspondence between the fourth index and the rank number corresponding to the second logical antenna port group

Wherein, in combination with Table 8, it can be seen that the first logical antenna port group includes antenna port group 3, and the second logical antenna port group includes antenna port group 4, that is, the antenna port group in the first logical antenna port group and the second logical antenna port group The antenna port groups within the antenna port group are all different. In addition, the third index (the third index is 13) corresponds to the rank number (2) corresponding to the first logical antenna port group, and the fourth index (the fourth index is 14) corresponds to the rank number (2) corresponding to the second logical antenna port group 1) Correspondence.

Table 9: Correspondence between the third index and the rank number corresponding to the first logical antenna port group, and correspondence between the fourth index and the rank number corresponding to the second logical antenna port group

Wherein, combined with Table 9, it can be seen that the first logical antenna port group includes antenna port group 3, and the second logical antenna port group includes antenna port group 3, that is, the antenna port group in the first logical antenna port group and the second logical antenna port group The antenna port groups in the antenna port group are all the same. In addition, the third index and the fourth index are the same.

Optionally, the first information also indicates the correspondence between the number of antenna port groups included in the first logical antenna port group and the rank number corresponding to the first logical antenna port group, and/or, the first information further indicates that the first logical antenna port group A corresponding relationship between the number of antenna port groups included in a logical antenna port group and the first logical antenna port group. Wherein, the first information also indicates the corresponding relationship between the number of antenna port groups included in the first logical antenna port group and the rank number corresponding to the first logical antenna port group, which can be understood as: the first information also indicates the fifth index Corresponding relationship between rank numbers corresponding to the first logical antenna port group, the fifth index is used to indicate the number of antenna port groups included in the first logical antenna port group. The first information also indicates the corresponding relationship between the number of antenna port groups included in the first logical antenna port group and the first logical antenna port group, which can be understood as: the first information also indicates the fifth index and the first logical antenna port A correspondence between groups, or, the first information further indicates a correspondence between the fifth index and the third index.

Optionally, the first information also indicates the correspondence between the number of antenna port groups included in the second logical antenna port group and the rank number corresponding to the second logical antenna port group, and/or, the first information further indicates the first The corresponding relationship between the number of antenna port groups included in the second logical antenna port group and the second logical antenna port group. Wherein, the first information also indicates the correspondence between the number of antenna port groups included in the second logical antenna port group and the rank number corresponding to the second logical antenna port group, which can be understood as: the first information also indicates the sixth index Corresponding relationship between rank numbers corresponding to the second logical antenna port group, the sixth index is used to indicate the number of antenna port groups included in the second logical antenna port group. The first information also indicates the correspondence between the number of antenna port groups included in the second logical antenna port group and the second logical antenna port group, which can be understood as: the first information also indicates the sixth index and the second logical antenna port A correspondence between groups, or, the first information further indicates a correspondence between the sixth index and the fourth index.

Exemplarily, in combination with Table 5, reference may be made to Table 10 for the number of antenna port groups included in different logical antenna port groups and their indexes.

Table 10: The number and index of antenna port groups included in different logical antenna port groups

索引index	逻辑天线端口组所包括的天线端口组的数量The number of antenna port groups included in the logical antenna port group
00	44
11	33
22	22
33	11

In the case of combining Table 5, Table 6 and Table 10, the number of antenna port groups included in the first logical antenna port group is 3, and the number of antenna port groups included in the second logical antenna port group is 2, that is, The fifth index is 1 and the sixth index is 2. In the case of combining Table 5, Table 7 and Table 10, the number of antenna port groups included in the first logical antenna port group and the number of antenna port groups included in the second logical antenna port group are both 2, that is, the fifth Both index and sixth index are 2. In the case of combining Table 5, Table 8, and Table 10, the number of antenna port groups included in the first logical antenna port group and the number of antenna port groups included in the second logical antenna port group are both 1, that is, the fifth Both index and sixth index are 3. In the case of combining Table 5, Table 9 and Table 10, the number of antenna port groups included in the first logical antenna port group and the number of antenna port groups included in the second logical antenna port group are both 1, that is, the fifth Both index and sixth index are 3.

Optionally, the first information further indicates the strength order of the first signal quality and the second signal quality, the first signal quality corresponds to the first rank, and the second signal quality corresponds to the second rank. Among them, the first rank and the second rank are different.

Wherein, in this application, the first signal quality and the second signal quality may be, for example, reference signal received power (reference signal received power, RSRP), reference signal received quality (reference signal received quality, RSRQ) or signal-to-interference-noise ratio ( signal to interference plus noise ratio, SINR), etc., there is no limit here.

Optionally, the strength order of the first signal quality and the second signal quality may be indicated by the first index and the second index. Specifically, the first index is greater than the second index, indicating that the first signal quality is greater than the second signal quality; the first index is equal to the second index, indicating that the first signal quality is equal to the second signal quality; the first index is less than the second index, indicating that The first signal quality is less than the second signal quality; or, the first index is greater than the second index, indicating that the first signal quality is less than the second signal quality; the first index is equal to the second index, indicating that the first signal quality is equal to the second signal quality; The first index is greater than the second index, indicating that the first signal quality is smaller than the second signal quality. It can be understood that, in this application, how the indexes used to indicate different ranks specifically represent the strength order of different signal qualities may be predefined by the protocol.

For example, refer to Table 11. In combination with Table 11, it can be seen that the indexes in Table 11 are 0, 1, 2 and 3 respectively, that is, the order in Table 11 is ascending from top to bottom. Wherein, the first index may be 0, the second index may be 1, and other indexes except the first index and the second index may be 2 and 3 respectively. In Table 11, 0 corresponds to antenna port group 1, antenna port group 2, and antenna port group 3 (the precoding vector size corresponding to the rank indicated by 0 is The sum of the numbers of all antenna ports is 12); 1 corresponds to antenna port group 2 and antenna port group 3 (the precoding vector size corresponding to the rank indicated by 1 is all antenna ports in antenna port group 2 and antenna port group 3 The sum of the numbers, that is, 8); 2 corresponds to the antenna port group 3 (the size of the precoding vector corresponding to the rank indicated by 2 is the sum of the numbers of all antenna ports in the antenna port group 3, that is, 4); 3 and the antenna port group Group 3 corresponds (the size of the precoding vector corresponding to the rank indicated by 3 is the sum of the numbers of all antenna ports in antenna port group 3, that is, 4). It can be understood that the signal quality corresponding to the rank indicated by 0 is greater than the signal quality corresponding to the rank indicated by 1, the signal quality corresponding to the rank indicated by 1 is greater than the signal quality corresponding to the rank indicated by 2, and the rank indicated by 2 corresponds to A signal quality greater than the signal quality corresponding to the rank indicated by 3.

Table 11: The order of strength of different signal qualities

索引index	天线端口组1 Antenna Port Group 1	天线端口组2 Antenna Port Group 2	天线端口组3 Antenna Port Group 3
00	Y Y	YY		YY
11	the	Y Y		YY
22	the	the	Y Y
33	the	the	YY

It can be seen that in the above technical solution, the first information also indicates the strength order of the first signal quality and the second signal quality, so that the network device can know the strength of different signal qualities without additional overhead order.

The foregoing mainly introduces the solution provided by the present application from the perspective of interaction between various network elements. It can be understood that, in order to implement the above functions, each network element includes a corresponding hardware structure and/or software module for performing each function. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

In the embodiment of the present application, the function modules of the terminal device and the network device may be divided according to the above method examples. For example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.

In the case of using an integrated unit, refer to FIG. 6 , which is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device 600 can be applied to the above method shown in FIG. 4 , and as shown in FIG. 6 , the communication device 600 includes: a transceiver module 601 . The transceiver module 601 may be a transceiver or a communication interface. The communication device may be used to implement terminal equipment and network equipment in any of the above method embodiments, or to implement functions of network elements in any of the above method embodiments. The network element or network function may be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform). Optionally, the communication device 600 may further include a storage module 602 for storing program codes and data of the communication device 600 .

An example is when the communication device is used as a terminal device or a chip applied in the terminal device, and executes the steps performed by the terminal device in the foregoing method embodiments. The transceiver module 601 is used to support communication with terminal devices or network devices, etc., the transceiver module specifically performs the sending and/or receiving actions performed by the terminal device in Figure 4, for example, supporting the terminal device to perform step 402, and/or Other processes in the techniques described herein.

An example is when the communication device is used as a network device or a chip applied to the network device, and executes the steps performed by the network device in the above method embodiments. The transceiver module 601 is used to support communication with terminal equipment or network equipment, etc., the transceiver module specifically performs the sending and/or receiving actions performed by the network equipment in Figure 4, for example, supports the network equipment to perform step 401, and/or Other processes in the techniques described herein.

In a possible implementation manner, when the terminal device or the network device is a chip, the transceiver module 601 may be an interface, a pin, or a circuit. The interface can be used to input the data to be processed to the processor, and can output the processing result of the processor. In specific implementation, the interface can be a general purpose input output (GPIO) interface, which can communicate with multiple peripheral devices (such as display (LCD), camera (camara), radio frequency (radio frequency, RF) modules, antennas, etc. )connect. The interface is connected to the processor through the bus.

Further, the processor may include a controller, an arithmetic unit and registers. Exemplarily, the controller is mainly responsible for decoding instructions and sending control signals for operations corresponding to the instructions. The arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logic operations, and can also perform address operations and conversions. The register is mainly responsible for saving the register operands and intermediate operation results temporarily stored during the execution of the instruction. In specific implementation, the hardware architecture of the processor can be application specific integrated circuits (ASIC) architecture, microprocessor without interlocked piped stages architecture (MIPS) architecture, advanced streamlined instructions Advanced RISC machines (ARM) architecture or network processor (network processor, NP) architecture, etc. Processors can be single-core or multi-core.

The storage module may be a storage module in the chip, such as a register, a cache, and the like. The storage module can also be a storage module located outside the chip, such as read-only memory (Read Only Memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (Random Access Memory, RAM), etc. .

It should be noted that the respective functions of the processor and the interface can be realized through hardware design, software design, or a combination of software and hardware, which is not limited here.

FIG. 7 is a schematic structural diagram of a simplified terminal device provided by an embodiment of the present application. For ease of understanding and illustration, in FIG. 7 , a mobile phone is taken as an example of a terminal device. As shown in FIG. 7 , the terminal device includes at least one processor, and may also include a radio frequency circuit, an antenna, and an input and output device. Wherein, the processor can be used to process communication protocols and communication data, and can also be used to control terminal equipment, execute software programs, process data of software programs, and the like. The terminal device may also include a memory, which is mainly used to store software programs and data. These related programs can be loaded into the memory when the communication device leaves the factory, or can be loaded into the memory later when needed. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves, and the antenna is the antenna provided in the embodiment of the present application. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 7 . In an actual terminal device product, there may be one or more processors and one or more memories. A memory may also be called a storage medium or a storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.

In this embodiment of the application, the antenna and radio frequency circuit with transceiver function can be regarded as the receiving unit and the transmitting unit of the terminal equipment (also collectively referred to as the transceiver unit), and the processor with processing function can be regarded as the processing unit of the terminal equipment . As shown in FIG. 7 , the terminal device includes a receiving module 31 , a processing module 32 and a sending module 33 . The receiving module 31 can also be called a receiver, a receiver, a receiving circuit, etc., and the sending module 33 can also be called a transmitter, a transmitter, a transmitter, a transmitting circuit, etc. The processing module 32 may also be called a processor, a processing board, a processing device, and the like.

For example, the receiving module 31 is configured to execute the functions of the terminal device in any embodiment shown in FIG. 4 .

FIG. 8 is a schematic structural diagram of a simplified network device provided by an embodiment of the present application. The network equipment includes a radio frequency signal transceiving and converting part and a part 42, and the radio frequency signal transceiving and converting part further includes a receiving module 41 and a sending module 43 (also collectively referred to as a transceiving module). The RF signal transceiver and conversion part is mainly used for the RF signal transceiver and the conversion of the RF signal and the baseband signal; the 42 part is mainly used for the baseband processing, controlling the network equipment, etc. The receiving module 41 can also be called a receiver, a receiver, a receiving circuit, etc., and the sending module 43 can also be called a transmitter, a transmitter, a transmitter, a transmitting circuit, etc. Part 42 is usually the control center of the network device, which can usually be referred to as a processing module, and is used to control the network device to execute the above-mentioned steps performed by the network device in FIG. 4 . For details, refer to the description of the relevant part above.

Part 42 may include one or more single boards, and each single board may include one or more processors and one or more memories, and the processors are used to read and execute programs in the memories to implement baseband processing functions and network equipment control. If there are multiple single boards, each single board can be interconnected to increase the processing capacity. As an optional implementation, it is also possible that multiple single boards share one or more processors, or that multiple single boards share one or more memories, or that multiple single boards share one or more processors at the same time. device.

For example, for a network device, the sending module 43 is configured to execute the function of the network device in any embodiment shown in FIG. 4 .

The embodiment of the present application also provides a communication device, including a processor, a memory, an input interface and an output interface, the input interface is used to receive information from other communication devices other than the first device, and the output interface is used to send information to the first device Other communication devices outside output information, and the processor invokes the computer program stored in the memory to realize any embodiment as shown in FIG. 4 .

An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is run, any one of the embodiments shown in FIG. 4 is implemented.

The embodiment of the present application further provides a computer program product, which enables the computer to implement any one of the embodiments shown in FIG. 4 when the computer reads and executes the computer program product.

The specific implementation manners described above have further described the purpose, technical solutions and beneficial effects of the application in detail. It should be understood that the above descriptions are only specific implementation modes of the application and are not intended to limit the scope of the application. Scope of protection: All modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of this application shall be included within the scope of protection of this application.

Claims

A method for reporting channel information, characterized in that it includes:

receiving a first reference signal from a network device;

sending first information to the network device, the first information indicating a first correspondence, the first correspondence including a correspondence between a first rank and a first set of antenna ports corresponding to the first reference signal , the first corresponding relationship is obtained by measuring the first reference signal.
The method according to claim 1, wherein the first information further indicates a second correspondence, and the second correspondence includes the second rank of the second antenna port set corresponding to the first reference signal The correspondence relationship among them, the second correspondence relationship is obtained by measuring the first reference signal.
The method according to claim 1 or 2, wherein the antenna ports in the first antenna port set are partly the same as the antenna ports in the second antenna port set.
The method according to any one of claims 1-3, wherein the antenna ports in the first antenna port set are included in a first logical antenna port group, and the first logical antenna port group includes at least one antenna port group, the first information further indicates the correspondence between the first logical antenna port group and the rank numbers corresponding to the first logical antenna port group.
The method according to any one of claims 1-3, wherein the antenna ports in the second antenna port set are included in a second logical antenna port group, and the second logical antenna port group includes at least one antenna port group, the first information also indicates the correspondence between the second logical antenna port group and the rank numbers corresponding to the second logical antenna port group.
The method according to claim 4 or 5, wherein the antenna port groups in the first logical antenna port group are partly the same as the antenna port groups in the second logical antenna port group.
The method according to any one of claims 1-6, wherein the first information also indicates the strength order of the first signal quality and the second signal quality, and the first signal quality and the first signal quality corresponds to a rank, and the second signal quality corresponds to a second rank.
A method for reporting channel information, characterized in that it comprises:

sending the first reference signal to the terminal device;

receiving first information from the terminal device, the first information indicating a first correspondence, the first correspondence including a correspondence between a first rank and a first antenna port set corresponding to the first reference signal , the first corresponding relationship is obtained by measuring the first reference signal.
The method according to claim 8, wherein the first information further indicates a second correspondence, and the second correspondence includes the second rank of the second antenna port set corresponding to the first reference signal The correspondence relationship among them, the second correspondence relationship is obtained by measuring the first reference signal.
The method according to claim 8 or 9, wherein the antenna ports in the first antenna port set are partly the same as the antenna ports in the second antenna port set.
The method according to any one of claims 8-10, wherein the antenna ports in the first antenna port set are included in a first logical antenna port group, and the first logical antenna port group includes at least one antenna port group, the first information further indicates the correspondence between the first logical antenna port group and the rank numbers corresponding to the first logical antenna port group.
The method according to any one of claims 8-10, wherein the antenna ports in the second antenna port set are included in a second logical antenna port group, and the second logical antenna port group includes at least one antenna port group, the first information also indicates the correspondence between the second logical antenna port group and the rank numbers corresponding to the second logical antenna port group.
The method according to claim 11 or 12, wherein the antenna port groups in the first logical antenna port group are partly the same as the antenna port groups in the second logical antenna port group.
The method according to any one of claims 8-13, wherein the first information also indicates the strength order of the first signal quality and the second signal quality, and the first signal quality and the first signal quality corresponds to a rank, and the second signal quality corresponds to a second rank.
A terminal device, characterized in that the terminal device includes a transceiver module, and the transceiver module is used for

receiving a first reference signal from a network device;

sending first information to the network device, the first information indicating a first correspondence, the first correspondence including a correspondence between a first rank and a first set of antenna ports corresponding to the first reference signal , the first corresponding relationship is obtained by measuring the first reference signal.
A network device, characterized in that the network device includes a transceiver module, the transceiver module is used for

sending the first reference signal to the terminal device;

receiving first information from the terminal device, the first information indicating a first correspondence, the first correspondence including a correspondence between a first rank and a first antenna port set corresponding to the first reference signal , the first corresponding relationship is obtained by measuring the first reference signal.
A communication device, characterized by comprising a processor and a memory, and the processor invokes a computer program stored in the memory to implement the method according to any one of claims 1-14.
A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is run, the method according to any one of claims 1-14 is realized.
A computer program product, characterized by comprising a computer program, and when the computer program is executed by a computer, the method according to any one of claims 1-14 is realized.