Communication method and communication device

Abstract

Disclosed in the present application are a communication method and a communication device. The method comprises: a first device sending first information to a second device, wherein the first information is configured to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, and the first uplink channel is associated with the first downlink channel. In the embodiments of the present application, first information is introduced, the first information being configured to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, which is conducive to the exchange of channel-related information between a first device and a second device, thereby improving the communication efficiency.

Description

Communication methods and communication equipment Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a communication method and communication device. Background Technology

[0002] In some scenarios, the lack of channel-related information between the first and second devices involved in the communication leads to decreased communication efficiency. For example, in some information transmission processes, the information to be transmitted is first compressed to a certain number of bits (e.g., using source coding for compression), and then the compressed information is expanded to a preset number of bits using channel coding. This compression-then-expansion scheme results in low coding efficiency. Therefore, to improve coding efficiency, a joint source-channel coding scheme can be used. However, to use a joint source-channel coding scheme, the encoding end (e.g., the first or second device) needs to obtain the channel information of the first uplink channel as source information and the channel information of the first downlink channel as channel information. However, the encoding end may not be able to obtain so much information, making a joint source-channel coding scheme impossible. Summary of the Invention

[0003] This application provides a communication method and a communication device. The various aspects covered by this application are described below.

[0004] In a first aspect, a communication method is provided, comprising: a first device sending first information to a second device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

[0005] In a second aspect, a communication method is provided, comprising: a second device receiving first information sent by a first device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

[0006] Thirdly, a communication device is provided, the communication device being a first device, comprising: a transmitting unit, configured to transmit first information to a second device, the first information being configured to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

[0007] Fourthly, a communication device is provided, the communication device being a second device, comprising: a receiving unit, configured to receive first information sent by a first device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

[0008] Fifthly, a communication device is provided, including a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory, causing the communication device to perform some or all of the steps in the methods of the above aspects.

[0009] Sixthly, embodiments of this application provide a communication system including the first device and / or the second device described above. In another possible design, the system may further include other devices that interact with the first device or the second device as provided in the embodiments of this application.

[0010] In a seventh aspect, embodiments of this application provide a computer-readable storage medium storing a computer program that causes a communication device to perform some or all of the steps in the methods described above.

[0011] Eighthly, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a communication device (e.g., a first device or a second device) to perform some or all of the steps of the methods described in the foregoing aspects. In some implementations, the computer program product may be a software installation package.

[0012] Ninthly, embodiments of this application provide a chip including a memory and a processor, the processor being able to call and run a computer program from the memory to implement some or all of the steps described in the methods of the foregoing aspects.

[0013] In this embodiment of the application, a first information is introduced, which is used for the channel information of the first uplink channel and / or the channel information of the first downlink channel. This information helps to exchange channel-related information between the first device and the second device, thereby improving communication efficiency. Attached Figure Description

[0014] Figure 1 shows the wireless communication system 100 used in an embodiment of this application.

[0015] Figure 2 is a schematic flowchart of the channel state information (CSI) transmission process.

[0016] Figure 3 is a schematic diagram of the neural network applicable to the embodiments of this application.

[0017] Figure 4 is a schematic diagram of the CSI transmission process using a neural network.

[0018] Figure 5 is a schematic flowchart of CSI transmission in the traditional scheme.

[0019] Figure 6 is a schematic flowchart of a communication method according to an embodiment of this application.

[0020] Figures 7A and 7B illustrate schematic diagrams of two joint source channel coding methods applicable to embodiments of this application.

[0021] Figure 8A is a schematic diagram of a channel information sample of the first uplink channel in an embodiment of this application.

[0022] Figure 8B is a schematic diagram of a channel information sample of the first downlink channel in an embodiment of this application.

[0023] Figures 9 and 10 are schematic flowcharts illustrating the transmission scheme of the first information in the embodiments of this application.

[0024] Figure 11 is a schematic diagram of a communication device according to an embodiment of this application.

[0025] Figure 12 is a schematic diagram of a communication device according to an embodiment of this application.

[0026] Figure 13 is a schematic structural diagram of a communication device according to an embodiment of this application. Detailed Implementation

[0027] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0028] Figure 1 illustrates a wireless communication system 100 according to an embodiment of this application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographical area and may communicate with the terminal device 120 located within that coverage area.

[0029] Figure 1 illustrates an exemplary network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices, and each network device may include other terminal devices within its coverage area. This application embodiment does not limit this.

[0030] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0031] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as: 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems, satellite communication systems, and so on.

[0032] The terminal device in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in this application embodiment can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The terminal devices in the embodiments of this application can be mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, self-driving, remote medical surgery, smart grids, transportation safety, smart cities, and smart homes, etc. Optionally, the UE can act as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in V2X or D2D, etc. For example, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0033] The network device in this application embodiment can be a device for communicating with a terminal device. This network device can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, auxiliary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. Base stations can also be mobile switching centers, devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, network-side devices in 6G networks, and devices that perform base station functions in future communication systems. Base stations can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0034] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0035] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0036] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0037] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0038] Regarding the source and channel coding / decoding methods in current wireless communication systems

[0039] In current wireless communication systems, source coding and channel coding of the information to be transmitted are performed independently. For example, the information to be transmitted is first processed through source coding, such as source compression. Then, considering the complexity of wireless channel transmission and interference issues, the source information is further processed through channel coding to achieve effective transmission.

[0040] In some scenarios, to improve coding efficiency, the source coding and channel coding stages can be considered and designed in a unified manner, forming a joint source-channel coding / decoding processing scheme. In some cases, joint source-channel coding is also called joint source-channel coding, and correspondingly, joint source-channel decoding is also called joint source-channel decoding.

[0041] The following explanation uses Figure 2 as an example to illustrate the CSI transmission process. CSI indication is crucial in known communication systems (e.g., LTE, NR systems) as it determines the performance of multiple-in multiple-out (MIMO) transmission. Generally, CSI indication in known communication systems can include indications of information such as channel quality indicator (CQI), precoding matrix indicator (PMI), and rank indicator (RI). Referring to Figure 2, the network device sends a CSI measurement configuration to the terminal device. This configuration indicates which information from CQI, PMI, and RI the terminal device needs to indicate via CSI. Additionally, the CSI measurement configuration also configures reference signals for CSI measurement. The network device can then send these reference signals to the terminal device for CSI measurement. Accordingly, the terminal device can determine the CSI by measuring the reference signals. The terminal device can then send CSI feedback back to the network device, allowing the network device to configure a reasonable and efficient data transmission method based on the CSI.

[0042] Referring again to Figure 2, in the above process, the terminal device needs to perform two encoding-related operations on the channel state information. The first is to encode the original channel information to obtain encoded channel information (corresponding to the compressed CSI generation shown in Figure 2). The main purpose here is to compress the information to be transmitted as much as possible, reducing air interface overhead while ensuring transmission quality. The second encoding operation performed by the terminal device is to perform channel encoding on the information to be transmitted (corresponding to the channel-encoded CSI information shown in Figure 2), so that the information to be transmitted can be better received and recognized by the network side. This can be done through polar code encoding or low-density parity-check (LDPC) encoding. Afterwards, the network device can decode the CSI feedback. For example, the network device first performs channel decoding on the CSI feedback to obtain decoded CSI information. Then, it performs source decoding on the decoded CSI information and recovers the channel estimation using the CSI information.

[0043] Neural Networks

[0044] In recent years, artificial intelligence research, represented by neural networks, has achieved remarkable results in many fields and will play an important role in people's production and life for a long time to come. A neural network can be understood as a computational model composed of multiple interconnected neuron nodes. The connections between nodes can represent weighted values ​​from the input signal to the output signal, usually called parameters. Each node performs a weighted summation of different input signals and outputs the result through a specific activation function.

[0045] Common neural networks include convolutional neural networks (CNN), recurrent neural networks (RNN), and deep neural networks (DNN).

[0046] The following description, in conjunction with Figure 3, introduces the neural network applicable to the embodiments of this application. The neural network shown in Figure 3 can be divided into three categories according to the position of different layers: input layer 310, hidden layer 320, and output layer 330. Generally, the first layer is the input layer 310, the last layer is the output layer 330, and the intermediate layers between the first and last layers are all hidden layers 320.

[0047] The input layer 310 is used to input data, which may be, for example, a received signal received by a receiver. The hidden layer 320 is used to process the input data, for example, to decompress the received signal. The output layer 330 is used to output the processed output data, for example, to output the decompressed signal.

[0048] As shown in Figure 3, the neural network consists of multiple layers, each containing multiple neurons. The neurons between layers can be fully connected or partially connected. For connected neurons, the output of a neuron in the previous layer can serve as the input of a neuron in the next layer.

[0049] With the continuous development of neural network research, deep learning algorithms have been proposed in recent years. These algorithms introduce more hidden layers into neural networks, forming DNNs (Deep Neural Networks). More hidden layers allow DNNs to better depict complex situations in the real world. Theoretically, the more parameters a model has, the higher its complexity and the greater its "capacity," meaning it can accomplish more complex learning tasks. This type of neural network model is widely used in pattern recognition, signal processing, optimization, and anomaly detection.

[0050] Currently, the transmission process of CSI can be performed using neural networks. Referring again to Figure 4, the encoding end first inputs the raw channel information into its neural network to compress and generate CSI, which is used for channel state information indication. Correspondingly, the decoding end can input the received channel state indication information into its neural network to recover and generate feedback channel information, which is used for channel quality information recovery.

[0051] Currently, research on AI / ML-based CSI compression and recovery mainly focuses on the compression and recovery of the CSI itself. The compressed CSI result is still part of the UCI or PUSCH and still needs to be transmitted between the terminal device and network device using traditional channel coding, as shown in Figure 5. The terminal device first compresses the CSI, then performs uplink channel coding on the compressed CSI, modulates the coded CSI, and transmits it to the network device via the physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH). Correspondingly, the network device demodulates the received information, obtains the demodulated information, and then performs uplink channel decoding on the demodulated information to obtain the decoded information. Finally, the network device can perform CSI recovery on the decoded information to obtain the recovered information.

[0052] In some scenarios, the lack of channel-related information between the first and second devices involved in the communication leads to a decrease in communication efficiency. Therefore, to address the above problem, embodiments of this application introduce first information, which is used for channel information of the first uplink channel and / or the channel information of the first downlink channel. This facilitates the exchange of channel-related information between the first and second devices, thereby improving communication efficiency.

[0053] The communication method of this application embodiment is described below with reference to FIG6. The method shown in FIG6 includes step S610. In step S610, the first device sends first information to the second device, wherein the first information is used to indicate the channel information of the first uplink channel and / or the channel information of the first downlink channel.

[0054] In some implementations, the first uplink channel is associated with the first downlink channel, or in other words, the channel information of the first uplink channel is associated with the channel information of the first downlink channel. For a description of the channel information, please refer to Embodiments 1 and 2 below. For example, the first uplink channel and the first downlink channel exhibit channel reciprocity.

[0055] In some implementations, the association between the first uplink channel and the first downlink channel is determined based on one or more of the following: the configuration of the first uplink channel is associated with the configuration of the first downlink channel; the resources of the first uplink channel are associated with the resources of the first downlink channel; the identifier corresponding to the first uplink channel is associated with the identifier corresponding to the first downlink channel; the configuration of the reference signal corresponding to the first uplink channel is associated with the configuration of the reference signal corresponding to the first downlink channel; and the resources of the reference signal corresponding to the first uplink channel are associated with the resources of the reference signal corresponding to the first downlink channel. The following sections describe the schemes for determining the association between the first uplink channel and the first downlink channel.

[0056] In some implementations, the first uplink channel is associated with the first downlink channel if the identifier of the first uplink channel configuration is associated with the identifier of the first downlink channel configuration. In other implementations, associating the configuration of the first uplink channel with the configuration of the first downlink channel may include the first uplink channel configuration containing the identifier of the first downlink channel configuration, and / or the first downlink channel configuration containing the identifier of the first uplink channel configuration. In still other implementations, associating the configuration of the first uplink channel with the configuration of the first downlink channel may include the first uplink channel configuration containing the configuration of the first downlink channel, and / or the first downlink channel configuration containing the configuration of the first uplink channel. Of course, in the embodiments of this application, the configurations of the mutually associated first uplink channels and first downlink channels can be indicated by network device indication or predefined methods.

[0057] In this embodiment, the association between the identifier of the first uplink channel configuration and the identifier of the first downlink channel configuration is not limited. For example, associating the identifier of the first uplink channel configuration with the identifier of the first downlink channel configuration may include the first uplink channel configuration identifier being the same as the first downlink channel configuration identifier. As another example, associating the identifier of the first uplink channel configuration with the identifier of the first downlink channel configuration may include the first uplink channel configuration identifier and the first downlink channel configuration identifier having the same segment of numbers.

[0058] In some implementations, the first uplink channel is associated with the first downlink channel if the identifier of a resource in the first uplink channel is associated with the identifier of a resource in the first downlink channel. In other implementations, associating the resources of the first uplink channel with the resources of the first downlink channel may include the resources of the first uplink channel containing the identifier of the resources of the first downlink channel, and / or the resources of the first downlink channel containing the identifier of the resources of the first uplink channel. Of course, in the embodiments of this application, the resources of the first uplink channel and the resources of the first downlink channel associated with each other may be indicated by network device indication or predefined methods.

[0059] In this embodiment, the association between the identifier of the resource of the first uplink channel and the identifier of the resource of the first downlink channel is not limited. For example, the association between the identifier of the resource of the first uplink channel and the identifier of the resource of the first downlink channel may include the identifier of the resource of the first uplink channel being the same as the identifier of the resource of the first downlink channel. As another example, the association between the identifier of the resource of the first uplink channel and the identifier of the resource of the first downlink channel may include the identifier of the resource of the first uplink channel and the identifier of the resource of the first downlink channel having the same segment of numbers.

[0060] In some implementations, the identifier corresponding to the first uplink channel may include one or more of the following: an identifier for the channel information of the first uplink channel, an ID for the reference signal transmitted in the first uplink channel, a resource ID for the first uplink channel, and a resource set ID corresponding to the first uplink channel. Of course, in the embodiments of this application, the identifier may also be a dedicated identifier specifically introduced to identify association relationships.

[0061] In other implementations, the identifier corresponding to the first downlink channel may include one or more of the following: an identifier for the channel information of the first downlink channel, an ID for the reference signal transmitted in the first downlink channel, a resource ID for the first downlink channel, and a resource set ID corresponding to the first downlink channel. Of course, in the embodiments of this application, the identifier may also be a dedicated identifier specifically introduced to identify association relationships.

[0062] For example, associating the identifier of the reference signal corresponding to the first uplink channel with the identifier of the reference signal corresponding to the first downlink channel may include the identifier of the reference signal corresponding to the first downlink channel being contained in the identifier of the reference signal corresponding to the first uplink channel, and / or the identifier of the reference signal corresponding to the first downlink channel being contained in the identifier of the reference signal corresponding to the first uplink channel.

[0063] In some implementations, the association between the identifier of the first uplink channel and the identifier of the first downlink channel can be indicated by network device indication or predefined methods.

[0064] In this embodiment, the association between the identifier corresponding to the first uplink channel and the identifier corresponding to the first downlink channel is not limited. For example, the association between the identifier corresponding to the first uplink channel and the identifier corresponding to the first downlink channel may include the identifier corresponding to the first uplink channel being the same as the identifier corresponding to the first downlink channel. As another example, the association between the identifier corresponding to the first uplink channel and the identifier corresponding to the first downlink channel may include the identifier corresponding to the first uplink channel and the identifier corresponding to the first downlink channel having the same segment of numbers.

[0065] In some implementations, the first uplink channel is associated with the first downlink channel if the identifier of the configuration of the reference signal corresponding to the first uplink channel is associated with the identifier of the configuration of the reference signal corresponding to the first downlink channel. In other implementations, associating the configuration of the reference signal corresponding to the first uplink channel with the configuration of the reference signal corresponding to the first downlink channel may include the configuration of the reference signal corresponding to the first uplink channel containing the identifier of the configuration of the reference signal corresponding to the first downlink channel, and / or the configuration of the reference signal corresponding to the first downlink channel containing the identifier of the configuration of the reference signal corresponding to the first uplink channel. Of course, in the embodiments of this application, the configurations of the reference signals corresponding to the first uplink channel and the reference signals corresponding to the first downlink channel can be indicated by network device indication or predefined methods.

[0066] In this embodiment, the association between the identifier of the configuration of the reference signal corresponding to the first uplink channel and the identifier of the configuration of the reference signal corresponding to the first downlink channel is not limited. For example, associating the identifier of the configuration of the reference signal corresponding to the first uplink channel and the identifier of the configuration of the reference signal corresponding to the first downlink channel may include the identifier of the configuration of the reference signal corresponding to the first uplink channel being the same as the identifier of the configuration of the reference signal corresponding to the first downlink channel. As another example, associating the identifier of the configuration of the reference signal corresponding to the first uplink channel and the identifier of the configuration of the reference signal corresponding to the first downlink channel may include the identifier of the configuration of the reference signal corresponding to the first uplink channel and the identifier of the configuration of the reference signal corresponding to the first downlink channel having the same segment of numbers.

[0067] In some implementations, the first uplink channel is associated with the first downlink channel if the identifier of the resource of the reference signal corresponding to the first uplink channel is associated with the identifier of the resource of the reference signal corresponding to the first downlink channel. In other implementations, the association of the resource of the reference signal corresponding to the first uplink channel with the resource of the reference signal corresponding to the first downlink channel may include the resource of the reference signal corresponding to the first uplink channel containing the identifier of the resource of the reference signal corresponding to the first downlink channel, and / or the resource of the reference signal corresponding to the first downlink channel containing the identifier of the resource of the reference signal corresponding to the first uplink channel. Of course, in the embodiments of this application, the mutually associated resources of the reference signal corresponding to the first uplink channel and the reference signal corresponding to the first downlink channel can be indicated by network device indication or predefined methods.

[0068] In this embodiment, the association between the identifier of the reference signal resource corresponding to the first uplink channel and the identifier of the reference signal resource corresponding to the first downlink channel is not limited. For example, the association between the identifier of the reference signal resource corresponding to the first uplink channel and the identifier of the reference signal resource corresponding to the first downlink channel may include the identifier of the reference signal resource corresponding to the first uplink channel being the same as the identifier of the reference signal resource corresponding to the first downlink channel. As another example, the association between the identifier of the reference signal resource corresponding to the first uplink channel and the identifier of the reference signal resource corresponding to the first downlink channel may include the identifier of the reference signal resource corresponding to the first uplink channel being the same as a certain segment of numbers in the identifier of the reference signal resource corresponding to the first downlink channel.

[0069] This application does not limit the reference signal corresponding to the first uplink channel mentioned above. In some implementations, the reference signal corresponding to the first uplink channel can be a reference signal transmitted through the first uplink channel (also called an "uplink reference signal"). The uplink reference signal transmitted through the first uplink channel can be an uplink reference signal in a known communication system, such as a channel sounding reference signal (SRS). Of course, the uplink reference signal transmitted through the first uplink channel can also be an uplink reference signal introduced in a future communication system.

[0070] Furthermore, this application does not limit the reference signal corresponding to the first downlink channel mentioned above. In some implementations, the reference signal corresponding to the first downlink channel can be a reference signal transmitted through the first downlink channel (also known as a "downlink reference signal"). The downlink reference signal transmitted through the first downlink channel can be a downlink reference signal in a known communication system, such as a channel state information reference signal (CSI-RS). Of course, the downlink reference signal transmitted through the first downlink channel can also be a downlink reference signal introduced in a future communication system.

[0071] For example, the network device can configure a first CSI-RS and a first SRS for the terminal device, and the network device can instruct the terminal device to associate the first CSI-RS with the first SRS. In this way, the first downlink channel transmitting the first CSI-RS is associated with the first uplink channel transmitting the first SRS.

[0072] For example, a network device can configure a first CSI-RS and a first SRS for a terminal device. Then, the IDs of the first CSI-RS and the first SRS can be associated through a protocol-defined method, thus associating the first downlink channel for transmitting the first CSI-RS with the first uplink channel for transmitting the first SRS.

[0073] As described above, the association between the first uplink channel and the first downlink channel is determined by indication information and / or predefined information sent by the network device. For example, the association between the first uplink channel and the first downlink channel is determined by indication information sent by the network device, which can be carried in one or more of the following ways: radio resource control (RRC) messages, media access control element (MAC CE), downlink control information (DCI), physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), downlink channels dedicated to artificial intelligence (AI) / machine learning (ML), specific dataset transmission channels, and specific dataset transmission containers. As another example, the predefined information can be information predefined by the protocol.

[0074] In addition, in this embodiment of the application, the indication information may be sent separately from the first information, or the indication information may be carried in the first information.

[0075] In some implementations, if the association between the first uplink channel and the first downlink channel is indicated by indication information sent by a network device, the indication information is used to indicate one or more of the following: auxiliary information; the channel information of the first downlink channel is used to determine the channel information of the first uplink channel.

[0076] Taking the indication information as an example of indicating auxiliary information, the auxiliary information can be used to determine the correlation between the first uplink channel and the first downlink channel.

[0077] In some implementations, auxiliary information is used to indicate one or more of the following: timing information of a first uplink channel; timing information of a reference signal corresponding to the first uplink channel; timing information of a first downlink channel; timing information of a reference signal corresponding to the first downlink channel; timing information corresponding to an uplink channel group; and timing information corresponding to a downlink channel group.

[0078] In the embodiments of this application, the implementation method of the above-mentioned time information is not limited. In some implementation methods, the time information may indicate one or more of the following: timestamp, sending time, receiving time (or acquisition time), start time, and duration.

[0079] For example, auxiliary information is used to indicate the timing information of the first uplink channel. Accordingly, the terminal device can determine the timing information of the first downlink channel associated with the timing information of the first uplink channel based on the timing information of the first uplink channel and the correlation between the timing information of the uplink channel and the timing information of the downlink channel. In this way, the terminal device can determine the mutually associated first uplink channel and first downlink channel. The correlation between the timing information of the uplink channel and the timing information of the downlink channel can be determined based on one or more of the following methods: predefined, preconfigured, or configured by the network device.

[0080] For example, auxiliary information is used to indicate the timing information of the reference signal corresponding to the first uplink channel. Accordingly, the terminal device can determine the timing information of the reference signal corresponding to the first downlink channel, which is associated with the timing information of the reference signal corresponding to the first uplink channel, based on the timing information of the reference signal corresponding to the first uplink channel and the correlation between the timing information of the reference signal corresponding to the uplink channel and the timing information of the reference signal corresponding to the downlink channel. In this way, the terminal device can determine the mutually associated first uplink channel and first downlink channel. The correlation between the timing information of the reference signal corresponding to the uplink channel and the timing information of the reference signal corresponding to the downlink channel can be determined based on one or more of the following methods: predefined, preconfigured, or configured by the network device.

[0081] For example, auxiliary information is used to indicate the timing information of the first downlink channel. Accordingly, the terminal device can determine the timing information of the first uplink channel associated with the timing information of the first downlink channel based on the timing information of the first downlink channel and the correlation between the timing information of the uplink channel and the timing information of the downlink channel. In this way, the terminal device can determine the mutually associated first uplink channel and first downlink channel. The correlation between the timing information of the uplink channel and the timing information of the downlink channel can be determined based on one or more of the following methods: predefined, preconfigured, or configured by the network device.

[0082] For example, auxiliary information is used to indicate the timing information of the reference signal corresponding to the first downlink channel. Accordingly, the terminal device can determine the timing information of the reference signal corresponding to the first uplink channel, which is associated with the timing information of the reference signal corresponding to the first downlink channel, based on the timing information of the reference signal corresponding to the first downlink channel and the correlation between the timing information of the reference signal corresponding to the uplink channel and the timing information of the reference signal corresponding to the downlink channel. In this way, the terminal device can determine the mutually associated first uplink channel and first downlink channel. The correlation between the timing information of the reference signal corresponding to the uplink channel and the timing information of the reference signal corresponding to the downlink channel can be determined based on one or more of the following methods: predefined, preconfigured, or configured by the network device.

[0083] For example, auxiliary information is used to indicate the timing information of an uplink channel group, where the uplink channel group may include a first uplink channel. Accordingly, the terminal device can determine the timing information of a first downlink channel in the downlink channel group that is associated with the timing information of the first uplink channel, based on the timing information of the uplink channel group and a first association relationship. The first association relationship indicates the association between the timing information of multiple uplink channels in the uplink channel group and multiple downlink channels in the downlink channel group. In this way, the terminal device can determine the mutually associated first uplink channels and first downlink channels. The first association relationship can be determined based on one or more of the following methods: predefined, preconfigured, or configured by the network device.

[0084] It should be noted that in some implementations, the timing information of the uplink channel group can be the timing information for each uplink channel in the uplink channel group. For example, the timing information of the uplink channel group can be used to indicate one or more of the following: the transmission time of each uplink channel in the uplink channel group, the reception time of each uplink channel in the uplink channel group, the start time of each uplink channel in the uplink channel group, and the duration of each uplink channel in the uplink channel group. As another example, the timing information of the uplink channel group can be used to indicate the time interval between every two uplink channels in the uplink channel group.

[0085] In other implementations, the uplink channel group timing information can be timing information for the entire uplink channel group. For example, the uplink channel group timing information is used to indicate one or more of the following: the uplink channel group transmission time, the uplink channel group reception time, the uplink channel group start time, and the uplink channel group duration.

[0086] For example, the timing information of the uplink channel group includes the time interval between multiple uplink channels in the uplink channel group. This time interval is used to determine the association between the uplink channels in the uplink channel group and the downlink channels in the downlink channel group. For example, auxiliary information indicates that the time interval between uplink channel 1 and uplink channel 2 in the uplink channel group is time interval 1, and uplink channel 1 is earlier than uplink channel 2 in the time domain. Similarly, the time interval between downlink channel 1 and downlink channel 2 in the downlink channel group is time interval 1, and downlink channel 1 is earlier than downlink channel 2 in the time domain. In this case, uplink channel 1 is associated with downlink channel 1, and / or uplink channel 2 is associated with downlink channel 2.

[0087] For example, auxiliary information is used to indicate the timing information of a downlink channel group, which may include a first downlink channel. Accordingly, the terminal device can determine the timing information of a first uplink channel in the uplink channel group that is associated with the timing information of the first downlink channel, based on the timing information of the downlink channel group and a second association relationship. The second association relationship indicates the association between the timing information of multiple uplink channels in the uplink channel group and multiple downlink channels in the downlink channel group. In this way, the terminal device can determine the mutually associated first uplink channels and first downlink channels. The second association relationship can be determined based on one or more of the following methods: predefined, preconfigured, or configured by the network device.

[0088] It should be noted that in some implementations, the timing information of the downlink channel group can be the timing information for each downlink channel in the downlink channel group. For example, the timing information of the downlink channel group can be used to indicate one or more of the following: the transmission time of each downlink channel in the downlink channel group, the reception time of each downlink channel in the downlink channel group, the start time of each downlink channel in the downlink channel group, and the duration of each downlink channel in the downlink channel group. As another example, the timing information of the downlink channel group can be used to indicate the time interval between every two downlink channels in the downlink channel group.

[0089] In other implementations, the downlink channel group timing information can be timing information for the uplink channel group as a whole. For example, the downlink channel group timing information is used to indicate one or more of the following: the transmission time of the downlink channel group, the reception time of the downlink channel group, the start time of the downlink channel group, and the duration of the downlink channel group.

[0090] For example, the timing information of the downlink channel group includes the time interval between multiple downlink channels in the downlink channel group. This time interval is used to determine the association between the downlink channels in the downlink channel group and the uplink channels in the uplink channel group. For example, auxiliary information indicates that the time interval between downlink channel 1 and downlink channel 2 in the downlink channel group is time interval 1, and downlink channel 1 is earlier than downlink channel 2 in the time domain. Similarly, the time interval between uplink channel 1 and uplink channel 2 in the uplink channel group is time interval 1, and uplink channel 1 is earlier than uplink channel 2 in the time domain. In this case, uplink channel 1 is associated with downlink channel 1, and / or uplink channel 2 is associated with downlink channel 2.

[0091] Taking the indication information used to indicate the channel information of the first downlink channel for determining the channel information of the first uplink channel as an example, in some scenarios, there is channel reciprocity between the first downlink channel and the first uplink channel. In this case, the network device can use the indication information to indicate the channel information of the first downlink channel for determining the channel information of the first uplink channel. Of course, in the embodiments of this application, the network device can use the indication information to indicate the channel information of the first uplink channel for determining the channel information of the first downlink channel.

[0092] It should be noted that the above explanation uses the association of the first uplink channel and the first downlink channel as an example. In some implementations, the first uplink channel can be associated with multiple downlink channels, where the multiple downlink channels may include the first downlink channel. Alternatively, the reference signal corresponding to the first uplink channel can be associated with reference signals corresponding to multiple downlink channels, where the reference signals corresponding to the multiple downlink channels may include the reference signal corresponding to the first downlink channel.

[0093] In other implementations, the first downlink channel can be associated with multiple uplink channels, where the multiple uplink channels may include the first uplink channel. Alternatively, the reference signal corresponding to the first downlink channel can be associated with reference signals corresponding to multiple uplink channels, where the reference signals corresponding to the multiple uplink channels may include the reference signal corresponding to the first uplink channel. Of course, in the embodiments of this application, the association between the first uplink channel and the first downlink channel can also be a one-to-one correspondence.

[0094] In this application embodiment, the multiple downlink channels are not limited. In some implementations, the multiple downlink channels may include downlink channels that are adjacent in the time domain and / or downlink channels that are not adjacent in the time domain. Furthermore, in this application embodiment, the multiple uplink channels are not limited. In some implementations, the multiple uplink channels may include uplink channels that are adjacent in the time domain and / or uplink channels that are not adjacent in the time domain.

[0095] The foregoing described the method for determining the correlation between the first uplink channel and the first downlink channel based on auxiliary information in the embodiments of this application, and the embodiments of this application do not limit this method.

[0096] In some implementations, the network device may indicate (or indicate in a predetermined manner) that a first uplink channel can be associated with R downlink channels preceding the transmission of the first uplink channel, wherein the R downlink channels include the first downlink channel, and R is a positive integer greater than or equal to 1. Alternatively, the network device may indicate (or indicate in a predetermined manner) that a reference signal corresponding to the first uplink channel can be associated with reference signals corresponding to the R downlink channels preceding the transmission of the reference signal corresponding to the first uplink channel.

[0097] In some implementations, the R downlink channels can be downlink channels that are temporally adjacent to the first uplink channel. "Adjacent" can be understood as the R downlink channels having a time interval with the first uplink channel that is less than a threshold. Alternatively, "adjacent" can be understood as the R downlink channels with the smallest time interval with the first uplink channel in the time domain over a given period. Or, "adjacent" can be understood as the R downlink channels with the smallest time interval with the first uplink channel in the time domain X symbols prior.

[0098] It should be noted that the embodiments of this application do not limit the number of R downlink channels. In some implementations, the R downlink channels can be transmitted continuously. In other implementations, the R downlink channels can be transmitted discontinuously. For example, there can be an interval of S downlink channel transmissions between two downlink channels, where S is a value greater than or equal to 1.

[0099] In some information transmission processes, the information to be transmitted is first compressed to a certain number of bits (for example, using source coding for compression), and then the compressed information is expanded to a preset number of bits using channel coding. This compression-then-expansion scheme results in low coding efficiency. Therefore, to improve coding efficiency, a joint source-channel coding scheme can be used. However, to use a joint source-channel coding scheme, the encoder needs to obtain the channel information of the first uplink channel as source information and the channel information of the first downlink channel as channel information. Currently, if the terminal device acts as the encoder, it cannot obtain the channel information of the first uplink channel, making the joint source-channel coding scheme impossible.

[0100] Therefore, in this embodiment, the first device and the second device can exchange channel information of the first uplink channel and channel information of the first downlink channel based on the first information, which helps to realize joint source channel coding based on the channel information of the first uplink channel and the channel information of the first downlink channel. Compared with the separate coding of the source channel in the traditional scheme, it helps to improve coding efficiency.

[0101] In other words, joint source-channel coding can be performed on the first uplink channel and the first downlink channel. For example, the source information in the joint source-channel coding includes the channel information of the first uplink channel, and the channel information in the joint source-channel coding includes the channel information of the first downlink channel.

[0102] For example, the CSI transmission process described above suffers from the low coding efficiency issue mentioned earlier. Referring to Figure 5, the CSI is first compressed to a certain number of bits (e.g., using source coding or CSI compression coding), and then the compressed CSI is expanded to a preset number of bits using channel coding. This compression-then-expansion scheme results in low CSI coding efficiency. Therefore, to improve CSI coding efficiency, a joint source-channel coding scheme can be used for CSI coding; that is, joint source-channel coding is used to encode the CSI.

[0103] In some implementations, during the joint source channel coding process of CSI coding sampling, the source information includes the channel information of the first uplink channel, and the channel information includes the channel information of the first downlink channel.

[0104] Figures 7A and 7B illustrate two schematic diagrams of joint source channel coding applicable to embodiments of this application. Referring to Figure 7A, the terminal device can input the CSI into a joint encoder for joint source channel coding, modulate the encoded CSI, and then send the modulated information to the network device via the uplink channel. Correspondingly, the network device can demodulate the received information and input the demodulated information into a joint decoder for joint source channel decoding to obtain the decoded information. In some scenarios, the joint encoder can integrate modulation functionality, and the joint decoder can integrate demodulation functionality. Referring to Figure 7B, the terminal device can input the CSI into the joint encoder for joint source channel coding and modulation, and then send the output information of the joint encoder to the network device via the uplink channel. Correspondingly, the network device can input the received information into the joint decoder for joint source channel decoding and demodulation to obtain the recovered information.

[0105] In some implementations, the first device is a terminal device and the second device is a network device. In other implementations, the first device is a network device and the second device is a terminal device. For example, the first device is a network device, the second device is a terminal device, and the first information is used to indicate the channel information of the first uplink channel. Of course, in the embodiments of this application, when the first information is used to indicate the channel information of the first uplink channel, the second device can be a network device and the first device can be a terminal device. For another example, the first device is a terminal device, the second device is a network device, and the first information is used to indicate the channel information of the first downlink channel. Of course, in the embodiments of this application, when the first information is used to indicate the channel information of the first downlink channel, the second device can be a terminal device and the first device can be a network device. The following descriptions are based on Embodiment 1 and Embodiment 2.

[0106] Example 1: The first information is used to indicate the channel information of the first uplink channel.

[0107] In some implementations, the first information indicates the channel information of the first uplink channel, and the first information carries one or more of the following: characteristic information of the first uplink channel; channel information sample of the first uplink channel. Alternatively, the first information indicates the channel information of the first uplink channel by carrying one or more of the above information.

[0108] In some implementations, the characteristic information of the first uplink channel is used to indicate the channel quality of the first uplink channel and / or the transmission quality of the first uplink channel.

[0109] In some implementations, the channel quality of the first uplink channel can be determined based on one or more of the following: the SNR information of the first uplink channel, the signal to interference plus noise ratio (SINR) information of the first uplink channel, the reference signal receiving power (RSRP) of the first uplink channel, the reference signal receiving quality (RSRQ) of the first uplink channel, and the received signal strength indication (RSSI) of the first uplink channel.

[0110] In some implementations, the transmission quality of the first uplink channel can be determined based on one or more of the following: block error rate (BLER), bit error ratio (BER), spectral efficiency, and throughput.

[0111] In some implementations, the channel information samples of the first uplink channel are used to indicate the channel quality of the first uplink channel. It should be understood that the embodiments of this application do not limit the number of channel information samples of the first uplink channel carried in the first information. In some implementations, the channel information samples of the first uplink channel carried in the first information may be one or more.

[0112] In some implementations, the channel information samples of the first uplink channel can be represented by a matrix, the dimensions of which correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part. Alternatively, the matrix dimensions include matrix elements of one or more of the above granularities.

[0113] In some implementations, the dimensions of a matrix can include a first dimension and a second dimension. For example, the first dimension may represent the number of rows in the matrix, and the second dimension may represent the number of columns. Or, for another example, the first dimension may represent the number of columns in the matrix, and the second dimension may represent the number of rows.

[0114] In some implementations, the matrix dimension can be represented as M1×N1, where M1 and N1 are positive integers greater than or equal to 1. That is, the matrix includes M1 first granularities in the first dimension and N1 second granularities in the second dimension. Furthermore, in the embodiments of this application, two-dimensional data of size M1×N1 can be combined into one-dimensional data of size 1×(M1×N1) or (M1×N1)×1. The transformation can be either performing a transformation of the first dimension first and then the transformation of the second dimension, or vice versa. It should be understood that this transformation is a difference in representation. Additionally, in the embodiments of this application, there is no limitation on whether M1 and N1 are the same.

[0115] In some implementations, the matrix can also include a third dimension. For example, a matrix can be represented as M1×N1×D1, where D1 represents the dimension corresponding to the real and imaginary parts, and D1 is a positive integer greater than or equal to 1. Another example is that a matrix can be represented as M1×N1×L1, where L1 represents the dimension corresponding to the streaming number, and L1 is a positive integer greater than or equal to 1.

[0116] In some implementations, the matrix may also include a fourth dimension. For example, the matrix can be represented as M1×N1×D1×L1, where D1 represents the dimension corresponding to the real and imaginary parts, and L1 represents the dimension corresponding to the streaming number. This application does not limit the dimension of the matrix in its embodiments.

[0117] In the embodiments of this application, the first granularity is not limited. In some implementations, the first granularity may include frequency domain granularity, such as subband, subcarrier, resource block (RB), carrier, or specific frequency. In other implementations, the first granularity may include time domain granularity, such as symbols (e.g., orthogonal frequency division multiplexing (OFDM) symbols), delay, sampling points corresponding to symbols, time slots, or specific time units (e.g., milliseconds (ms)). Taking delay granularity as an example, a delay granularity may be m1 microseconds, m2 symbol lengths, or m3 number of sampling points for symbols.

[0118] In this embodiment, the second granularity is not limited. In some implementations, the second granularity may include spatial domain granularity. For example, spatial domain granularity may include one or more of the following: antenna domain granularity, angle domain granularity, or specific coding domain granularity. Taking angle domain granularity as an example, angle domain granularity can represent the angular interval between multiple angles.

[0119] Furthermore, in the embodiments of this application, the matrix elements representing the channel information samples can also be eigenvectors. For example, for an M1×N1 matrix, it can include eigenvectors of length N.

[0120] For ease of understanding, the channel information samples in the embodiments of this application are described below with reference to Figure 8A. Referring to Figure 8A, the number of channel information samples carried by the first information is K1, where K1 is a positive integer greater than or equal to 1. Each channel information sample in the K1 channel information samples can be represented as an M1×N1 matrix. The first dimension of this matrix includes m1 granularities, where each m1 granularity can be an m1 subband, m1 = 1, 2, ..., M1. The second dimension of this matrix includes n1 granularities, where each n1 granularity can be an antenna dimension, n1 = 1, 2, ..., N1; that is, the second dimension can include N1 antenna granularities.

[0121] Example 2: The first information is used to indicate the channel information of the first downlink channel.

[0122] In some implementations, the first information indicates the channel information of the first downlink channel, and the first information carries one or more of the following: characteristic information of the first downlink channel; channel information sample of the first downlink channel. Alternatively, the first information indicates the channel information of the first downlink channel by carrying one or more of the above information.

[0123] In some implementations, the characteristic information of the first downlink channel is used to indicate the channel quality of the first downlink channel and / or the transmission quality of the first downlink channel.

[0124] In some implementations, the channel quality of the first downlink channel can be determined based on one or more of the following: the SNR information of the first downlink channel, the SINR information of the first downlink channel, the RSRP of the first downlink channel, the RSRQ of the first downlink channel, and the RSSI of the first downlink channel.

[0125] In some implementations, the transmission quality of the first downlink channel can be determined based on one or more of the following: BLER, BER, spectral efficiency, and throughput.

[0126] In some implementations, the channel information samples of the first downlink channel are used to indicate the channel quality of the first downlink channel. It should be understood that the embodiments of this application do not limit the number of channel information samples of the first downlink channel carried in the first information. In some implementations, the channel information samples of the first downlink channel carried in the first information may be one or more.

[0127] In some implementations, the channel information samples of the first downlink channel can be represented by a matrix, the dimensions of which correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part. Alternatively, the matrix dimensions include matrix elements of one or more of the above granularities.

[0128] In some implementations, the dimensions of a matrix can include a first dimension and a second dimension. For example, the first dimension may represent the number of rows in the matrix, and the second dimension may represent the number of columns. Or, for another example, the first dimension may represent the number of columns in the matrix, and the second dimension may represent the number of rows.

[0129] In some implementations, the dimension of the matrix can be represented as M²×N², where M² and N² are positive integers greater than or equal to 1. That is, the matrix includes M² first granularities in the first dimension and N² second granularities in the second dimension. Furthermore, in this embodiment, two-dimensional data of size M²×N² can be combined into one-dimensional data of size 1×(M²×N²) or (M²×N²)×1. This transformation can be performed by first transforming the first dimension and then the second dimension, or vice versa. It should be understood that this transformation is a difference in representation. Additionally, in this embodiment, there is no limitation on whether M¹ and N¹ are the same.

[0130] In some implementations, the matrix may also include a third dimension. For example, a matrix can be represented as M²×N²×D², where D² represents the dimension corresponding to the real and imaginary parts, and D² is a positive integer greater than or equal to 1. Another example is that a matrix can be represented as M²×N²×L², where L² represents the dimension corresponding to the fluxions, and L² is a positive integer greater than or equal to 1.

[0131] In some implementations, the matrix may also include a fourth dimension. For example, the matrix can be represented as M²×N²×D²×L², where D² represents the dimension corresponding to the real and imaginary parts, and L² represents the dimension corresponding to the streaming number. This application does not limit the dimension of the matrix in its embodiments.

[0132] In this application embodiment, the first granularity is not limited. In some implementations, the first granularity may include frequency domain granularity, such as subband, subcarrier, RB, carrier, or a specific frequency. In other implementations, the first granularity may include time domain granularity, such as a symbol (e.g., OFDM symbol), delay, sampling points corresponding to the symbol, time slot, or a specific time unit (e.g., ms). Taking delay granularity as an example, a delay granularity can be in microseconds, or in symbol length, or in the number of sampling points of a symbol.

[0133] In this embodiment, the second granularity is not limited. In some implementations, the second granularity may include spatial domain granularity. For example, spatial domain granularity may include one or more of the following: antenna domain granularity, angle domain granularity, or specific coding domain granularity. Taking angle domain granularity as an example, angle domain granularity can represent the angular interval between multiple angles.

[0134] Furthermore, in the embodiments of this application, the matrix elements representing the channel information samples can also be eigenvectors. For example, for an M2×N2 matrix, it can include eigenvectors of length N.

[0135] For ease of understanding, the channel information samples in the embodiments of this application are described below with reference to Figure 8B. Referring to Figure 8B, the number of channel information samples carried by the first information is K2, where K2 is a positive integer greater than or equal to 1. Each channel sample information in the K2 channel information samples can be represented as an M2×N2 matrix. The first dimension of this matrix includes m2 granularities, where m2 granularities can be m2 sub-bands, m2 = 1, 2, ..., M2. The second dimension of this matrix includes n2 granularities, where n2 granularities can be antenna dimensions, n2 = 1, 2, ..., N2; that is, the second dimension includes N2 antenna granularities.

[0136] For ease of understanding, the transmission scheme of the first information in the embodiments of this application is described below with reference to Figures 9 and 10. The method shown in Figure 9 is described using the example of a network device as the first device and a terminal device as the second device. The method shown in Figure 9 includes step S910.

[0137] In step S910, the network device sends first information to the terminal device, wherein the first information includes channel information of the first uplink channel and auxiliary information 1, wherein the auxiliary information 1 is used by the terminal device to determine the channel information of the first downlink channel associated with the channel information of the first uplink channel.

[0138] It should be understood that the above description of the channel information for the first uplink channel can be found in Embodiment 1. Additionally, the description of auxiliary information 1 can be found in the above description of auxiliary information.

[0139] The method shown in Figure 10 is illustrated using the example of a first device as a terminal device and a second device as a network device. The method shown in Figure 10 includes step S1010.

[0140] In step S1010, the terminal device sends first information to the network device, wherein the first information includes channel information of a first downlink channel and auxiliary information 2, wherein the auxiliary information 2 is used by the network device to determine the channel information of a first uplink channel associated with the channel information of the first downlink channel.

[0141] It should be understood that the above description of the channel information for the first downlink channel can be found in Embodiment 2. Additionally, the description of auxiliary information 2 can be found in the above description of auxiliary information.

[0142] The method embodiments of this application have been described in detail above with reference to Figures 1 to 10. The apparatus embodiments of this application will be described in detail below with reference to Figures 11 to 13. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be referred to the preceding method embodiments.

[0143] Figure 11 is a schematic diagram of a communication device according to an embodiment of this application. The communication device 1100 shown in Figure 11 is a first device, and the communication device 1100 includes: a transmitting unit 1110.

[0144] The transmitting unit 1110 is configured to transmit first information to the second device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

[0145] In some implementations, the first information is used for joint source channel coding based on the first uplink channel and the first downlink channel.

[0146] In some implementations, the joint source channel coding is used to encode channel state information (CSI).

[0147] In some implementations, the association between the first uplink channel and the first downlink channel is determined based on one or more of the following: the configuration of the first uplink channel is associated with the configuration of the first downlink channel; the resources of the first uplink channel are associated with the resources of the first downlink channel; the identifier corresponding to the first uplink channel is associated with the identifier corresponding to the first downlink channel; the configuration of the reference signal corresponding to the first uplink channel is associated with the configuration of the reference signal corresponding to the first downlink channel; and the resources of the reference signal corresponding to the first uplink channel are associated with the resources of the reference signal corresponding to the first downlink channel.

[0148] In some implementations, the association between the first uplink channel and the first downlink channel is determined by indication information and / or predefined information sent by the network device.

[0149] In some implementations, the indication information is used to indicate one or more of the following: auxiliary information, which is used to determine the association between the first uplink channel and the first downlink channel; and channel information of the first downlink channel, which is used to determine the channel information of the first uplink channel.

[0150] In some implementations, the auxiliary information is used to indicate one or more of the following: time information of the first uplink channel; time information of the reference signal corresponding to the first uplink channel; time information of the first downlink channel; time information of the reference signal corresponding to the first downlink channel; time information corresponding to an uplink channel group, wherein the uplink channel group includes the first uplink channel; and time information corresponding to a downlink channel group, wherein the downlink channel group includes the first downlink channel.

[0151] In some implementations, the first information is used to indicate the channel information of the first uplink channel, and the first information carries one or more of the following: characteristic information of the first uplink channel; channel information sample of the first uplink channel.

[0152] In some implementations, the characteristic information of the first uplink channel is used to indicate the channel quality of the first uplink channel and / or the transmission quality of the first uplink channel.

[0153] In some implementations, channel information samples of the first uplink channel are used to indicate the channel quality of the first uplink channel.

[0154] In some implementations, the channel information samples of the first uplink channel are represented by a matrix, the dimensions of which correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

[0155] In some implementations, the first information is used to indicate the channel information of the first downlink channel, and the first information carries one or more of the following: characteristic information of the first downlink channel; channel information sample of the first downlink channel.

[0156] In some implementations, the characteristic information of the first downlink channel is used to indicate the channel quality of the first downlink channel and / or the transmission quality of the first downlink channel.

[0157] In some implementations, the channel information sample of the first downlink channel is used to indicate the channel quality of the first downlink channel.

[0158] In some implementations, the channel information samples of the first downlink channel are represented by a matrix, the dimensions of which correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

[0159] In some implementations, the first device is a terminal device and the second device is a network device; or the first device is a network device and the second device is a terminal device.

[0160] Figure 12 is a schematic diagram of a communication device according to an embodiment of this application. The communication device 1200 shown in Figure 12 is a second device, and the communication device 1200 includes: a receiving unit 1210.

[0161] The receiving unit 1210 is configured to receive first information sent by the first device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

[0162] In some implementations, the first information is used for joint source channel coding based on the first uplink channel and the first downlink channel.

[0163] In some implementations, the joint source channel coding is used to encode channel state information (CSI).

[0164] In some implementations, the association between the first uplink channel and the first downlink channel is determined based on one or more of the following: the configuration of the first uplink channel is associated with the configuration of the first downlink channel; the resources of the first uplink channel are associated with the resources of the first downlink channel; the identifier corresponding to the first uplink channel is associated with the identifier corresponding to the first downlink channel; the configuration of the reference signal corresponding to the first uplink channel is associated with the configuration of the reference signal corresponding to the first downlink channel; and the resources of the reference signal corresponding to the first uplink channel are associated with the resources of the reference signal corresponding to the first downlink channel.

[0165] In some implementations, the association between the first uplink channel and the first downlink channel is determined by indication information and / or predefined information sent by the network device.

[0166] In some implementations, the indication information is used to indicate one or more of the following: auxiliary information, which is used to determine the association between the first uplink channel and the first downlink channel; and channel information of the first downlink channel, which is used to determine the channel information of the first uplink channel.

[0167] In some implementations, the auxiliary information is used to indicate one or more of the following: time information of the first uplink channel; time information of the reference signal corresponding to the first uplink channel; time information of the first downlink channel; time information of the reference signal corresponding to the first downlink channel; time information corresponding to an uplink channel group, wherein the uplink channel group includes the first uplink channel; and time information corresponding to a downlink channel group, wherein the downlink channel group includes the first downlink channel.

[0168] In some implementations, the first information is used to indicate the channel information of the first uplink channel, and the first information carries one or more of the following: characteristic information of the first uplink channel; channel information sample of the first uplink channel.

[0169] In some implementations, the characteristic information of the first uplink channel is used to indicate the channel quality of the first uplink channel and / or the transmission quality of the first uplink channel.

[0170] In some implementations, channel information samples of the first uplink channel are used to indicate the channel quality of the first uplink channel.

[0171] In some implementations, the channel information samples of the first uplink channel are represented by a matrix, the dimensions of which correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

[0172] In some implementations, the first information is used to indicate the channel information of the first downlink channel, and the first information carries one or more of the following: characteristic information of the first downlink channel; channel information sample of the first downlink channel.

[0173] In some implementations, the characteristic information of the first downlink channel is used to indicate the channel quality of the first downlink channel and / or the transmission quality of the first downlink channel.

[0174] In some implementations, the channel information sample of the first downlink channel is used to indicate the channel quality of the first downlink channel.

[0175] In some implementations, the channel information samples of the first downlink channel are represented by a matrix, the dimensions of which correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

[0176] In some implementations, the first device is a terminal device and the second device is a network device; or the first device is a network device and the second device is a terminal device.

[0177] In an optional embodiment, the transmitting unit 1110 may be a transceiver 1330. The communication device 1100 may also include a transceiver 1330 and a memory 1320, as shown in FIG13.

[0178] In an optional embodiment, the receiving unit 1210 may be a transceiver 1330. The communication device 1200 may also include a transceiver 1330 and a memory 1320, as shown in FIG13.

[0179] Figure 13 is a schematic structural diagram of a communication device according to an embodiment of this application. The dashed lines in Figure 13 indicate that the unit or module is optional. This device 1300 can be used to implement the methods described in the above method embodiments. Device 1300 can be a chip, a terminal device, or a network device.

[0180] Apparatus 1300 may include one or more processors 1310. The processor 1310 may support apparatus 1300 in implementing the methods described in the preceding method embodiments. The processor 1310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0181] The apparatus 1300 may further include one or more memories 1320. The memories 1320 store a program that can be executed by the processor 1310, causing the processor 1310 to perform the methods described in the preceding method embodiments. The memories 1320 may be independent of the processor 1310 or integrated within the processor 1310.

[0182] The device 1300 may also include a transceiver 1330. The processor 1310 can communicate with other devices or chips via the transceiver 1330. For example, the processor 1310 can send and receive data with other devices or chips via the transceiver 1330.

[0183] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal or network device provided in this application, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0184] This application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0185] This application also provides a computer program. This computer program can be applied to the terminal or network device provided in this application, and the computer program causes the computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0186] It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0187] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0188] In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0189] In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0190] In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0191] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0192] In the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0193] In the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0194] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0195] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0196] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0197] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0198] 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, include: The first device sends first information to the second device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

2. The method as described in claim 1, characterized in that, The first information is used for joint source channel coding based on the first uplink channel and the first downlink channel.

3. The method as described in claim 2, characterized in that, The joint source channel coding is used to encode the channel state information (CSI).

4. The method according to any one of claims 1-3, characterized in that, The association between the first uplink channel and the first downlink channel is determined based on one or more of the following: The configuration of the first uplink channel is associated with the configuration of the first downlink channel; The resources of the first uplink channel are associated with the resources of the first downlink channel; The identifier corresponding to the first uplink channel is associated with the identifier corresponding to the first downlink channel; The configuration of the reference signal corresponding to the first uplink channel is associated with the configuration of the reference signal corresponding to the first downlink channel; The resources of the reference signal corresponding to the first uplink channel are associated with the resources of the reference signal corresponding to the first downlink channel.

5. The method according to any one of claims 1-4, characterized in that, The association between the first uplink channel and the first downlink channel is determined by indication information and / or predefined information sent by the network device.

6. The method as described in claim 5, characterized in that, The instruction information is used to indicate one or more of the following: Auxiliary information, wherein the auxiliary information is used to determine the correlation between the first uplink channel and the first downlink channel; The channel information of the first downlink channel is used to determine the channel information of the first uplink channel.

7. The method as described in claim 6, characterized in that, The auxiliary information is used to indicate one or more of the following: Time information of the first uplink channel; The timing information of the reference signal corresponding to the first uplink channel; Time information of the first downlink channel; The timing information of the reference signal corresponding to the first downlink channel; The time information corresponding to the uplink channel group, wherein the uplink channel group includes the first uplink channel; The time information corresponding to the downlink channel group, wherein the downlink channel group includes the first downlink channel.

8. The method according to any one of claims 1-7, characterized in that, The first information is used to indicate the channel information of the first uplink channel, and the first information carries one or more of the following: The characteristic information of the first uplink channel; Channel information sample of the first uplink channel.

9. The method as described in claim 8, characterized in that, The feature information of the first uplink channel is used to indicate the channel quality of the first uplink channel and / or the transmission quality of the first uplink channel.

10. The method as described in claim 8 or 9, characterized in that, The channel information sample of the first uplink channel is used to indicate the channel quality of the first uplink channel.

11. The method as described in claim 10, characterized in that, The channel information samples of the first uplink channel are represented by a matrix, and the dimensions of the matrix correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

12. The method according to any one of claims 1-11, characterized in that, The first information is used to indicate the channel information of the first downlink channel, and the first information carries one or more of the following: Characteristic information of the first downlink channel; Channel information sample of the first downlink channel.

13. The method as described in claim 12, characterized in that, The characteristic information of the first downlink channel is used to indicate the channel quality of the first downlink channel and / or the transmission quality of the first downlink channel.

14. The method as described in claim 12 or 13, characterized in that, The channel information sample of the first downlink channel is used to indicate the channel quality of the first downlink channel.

15. The method as described in claim 14, characterized in that, The channel information samples of the first downlink channel are represented by a matrix, and the dimensions of the matrix correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

16. The method according to any one of claims 1-15, characterized in that, The first device is a terminal device, and the second device is a network device; or The first device is a network device, and the second device is a terminal device.

17. A communication method, characterized in that, include: The second device receives first information sent by the first device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

18. The method as described in claim 17, characterized in that, The first information is used for joint source channel coding based on the first uplink channel and the first downlink channel.

19. The method as described in claim 18, characterized in that, The joint source channel coding is used to encode the channel state information (CSI).

20. The method according to any one of claims 17-19, characterized in that, The association between the first uplink channel and the first downlink channel is determined based on one or more of the following: The configuration of the first uplink channel is associated with the configuration of the first downlink channel; The resources of the first uplink channel are associated with the resources of the first downlink channel; The identifier corresponding to the first uplink channel is associated with the identifier corresponding to the first downlink channel; The configuration of the reference signal corresponding to the first uplink channel is associated with the configuration of the reference signal corresponding to the first downlink channel; The resources of the reference signal corresponding to the first uplink channel are associated with the resources of the reference signal corresponding to the first downlink channel.

21. The method according to any one of claims 17-20, characterized in that, The association between the first uplink channel and the first downlink channel is determined by indication information and / or predefined information sent by the network device.

22. The method as described in claim 21, characterized in that, The instruction information is used to indicate one or more of the following: Auxiliary information, wherein the auxiliary information is used to determine the correlation between the first uplink channel and the first downlink channel; The channel information of the first downlink channel is used to determine the channel information of the first uplink channel.

23. The method as described in claim 22, characterized in that, The auxiliary information is used to indicate one or more of the following: Time information of the first uplink channel; The timing information of the reference signal corresponding to the first uplink channel; Time information of the first downlink channel; The timing information of the reference signal corresponding to the first downlink channel; The time information corresponding to the uplink channel group, wherein the uplink channel group includes the first uplink channel; The time information corresponding to the downlink channel group, wherein the downlink channel group includes the first downlink channel.

24. The method according to any one of claims 17-23, characterized in that, The first information is used to indicate the channel information of the first uplink channel, and the first information carries one or more of the following: The characteristic information of the first uplink channel; Channel information sample of the first uplink channel.

25. The method as described in claim 24, characterized in that, The feature information of the first uplink channel is used to indicate the channel quality of the first uplink channel and / or the transmission quality of the first uplink channel.

26. The method as described in claim 24 or 25, characterized in that, The channel information sample of the first uplink channel is used to indicate the channel quality of the first uplink channel.

27. The method as described in claim 26, characterized in that, The channel information samples of the first uplink channel are represented by a matrix, and the dimensions of the matrix correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

28. The method according to any one of claims 17-27, characterized in that, The first information is used to indicate the channel information of the first downlink channel, and the first information carries one or more of the following: Characteristic information of the first downlink channel; Channel information sample of the first downlink channel.

29. The method as described in claim 28, characterized in that, The characteristic information of the first downlink channel is used to indicate the channel quality of the first downlink channel and / or the transmission quality of the first downlink channel.

30. The method as described in claim 28 or 29, characterized in that, The channel information sample of the first downlink channel is used to indicate the channel quality of the first downlink channel.

31. The method as described in claim 30, characterized in that, The channel information samples of the first downlink channel are represented by a matrix, and the dimensions of the matrix correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

32. The method according to any one of claims 17-31, characterized in that, The first device is a terminal device, and the second device is a network device; or The first device is a network device, and the second device is a terminal device.

33. A communication device, characterized in that, The communication device is a first device, comprising: The transmitting unit is configured to transmit first information to the second device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

34. The communication device as described in claim 33, characterized in that, The first information is used for joint source channel coding based on the first uplink channel and the first downlink channel.

35. The communication device as described in claim 34, characterized in that, The joint source channel coding is used to encode the channel state information (CSI).

36. The communication device as described in any one of claims 33-35, characterized in that, The association between the first uplink channel and the first downlink channel is determined based on one or more of the following: The configuration of the first uplink channel is associated with the configuration of the first downlink channel; The resources of the first uplink channel are associated with the resources of the first downlink channel; The identifier corresponding to the first uplink channel is associated with the identifier corresponding to the first downlink channel; The configuration of the reference signal corresponding to the first uplink channel is associated with the configuration of the reference signal corresponding to the first downlink channel; The resources of the reference signal corresponding to the first uplink channel are associated with the resources of the reference signal corresponding to the first downlink channel.

37. The communication device as described in any one of claims 33-36, characterized in that, The association between the first uplink channel and the first downlink channel is determined by indication information and / or predefined information sent by the network device.

38. The communication device as described in claim 37, characterized in that, The instruction information is used to indicate one or more of the following: Auxiliary information, wherein the auxiliary information is used to determine the correlation between the first uplink channel and the first downlink channel; The channel information of the first downlink channel is used to determine the channel information of the first uplink channel.

39. The communication device as described in claim 38, characterized in that, The auxiliary information is used to indicate one or more of the following: Time information of the first uplink channel; The timing information of the reference signal corresponding to the first uplink channel; Time information of the first downlink channel; The timing information of the reference signal corresponding to the first downlink channel; The time information corresponding to the uplink channel group, wherein the uplink channel group includes the first uplink channel; The time information corresponding to the downlink channel group, wherein the downlink channel group includes the first downlink channel.

40. The communication device as described in any one of claims 33-39, characterized in that, The first information is used to indicate the channel information of the first uplink channel, and the first information carries one or more of the following: The characteristic information of the first uplink channel; Channel information sample of the first uplink channel.

41. The communication device as described in claim 40, characterized in that, The feature information of the first uplink channel is used to indicate the channel quality of the first uplink channel and / or the transmission quality of the first uplink channel.

42. The communication device as described in claim 40 or 41, characterized in that, The channel information sample of the first uplink channel is used to indicate the channel quality of the first uplink channel.

43. The communication device as described in claim 42, characterized in that, The channel information samples of the first uplink channel are represented by a matrix, and the dimensions of the matrix correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

44. The communication device according to any one of claims 33-43, characterized in that, The first information is used to indicate the channel information of the first downlink channel, and the first information carries one or more of the following: Characteristic information of the first downlink channel; Channel information sample of the first downlink channel.

45. The communication device as described in claim 44, characterized in that, The characteristic information of the first downlink channel is used to indicate the channel quality of the first downlink channel and / or the transmission quality of the first downlink channel.

46. ​​The communication device as described in claim 44 or 45, characterized in that, The channel information sample of the first downlink channel is used to indicate the channel quality of the first downlink channel.

47. The communication device as described in claim 46, characterized in that, The channel information samples of the first downlink channel are represented by a matrix, and the dimensions of the matrix correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

48. The communication device as described in any one of claims 33-47, characterized in that, The first device is a terminal device, and the second device is a network device; or The first device is a network device, and the second device is a terminal device.

49. A communication device, characterized in that, The communication device is a second device, including: A receiving unit is configured to receive first information sent by a first device, the first information being used to indicate channel information of a first uplink channel and / or channel information of a first downlink channel, wherein the first uplink channel is associated with the first downlink channel.

50. The communication device as described in claim 49, characterized in that, The first information is used for joint source channel coding based on the first uplink channel and the first downlink channel.

51. The communication device as described in claim 50, characterized in that, The joint source channel coding is used to encode the channel state information (CSI).

52. The communication device as described in any one of claims 49-51, characterized in that, The association between the first uplink channel and the first downlink channel is determined based on one or more of the following: The configuration of the first uplink channel is associated with the configuration of the first downlink channel; The resources of the first uplink channel are associated with the resources of the first downlink channel; The identifier corresponding to the first uplink channel is associated with the identifier corresponding to the first downlink channel; The configuration of the reference signal corresponding to the first uplink channel is associated with the configuration of the reference signal corresponding to the first downlink channel; The resources of the reference signal corresponding to the first uplink channel are associated with the resources of the reference signal corresponding to the first downlink channel.

53. The communication device as described in any one of claims 49-52, characterized in that, The association between the first uplink channel and the first downlink channel is determined by indication information and / or predefined information sent by the network device.

54. The communication device as described in claim 53, characterized in that, The instruction information is used to indicate one or more of the following: Auxiliary information, wherein the auxiliary information is used to determine the correlation between the first uplink channel and the first downlink channel; The channel information of the first downlink channel is used to determine the channel information of the first uplink channel.

55. The communication device as described in claim 54, characterized in that, The auxiliary information is used to indicate one or more of the following: Time information of the first uplink channel; The timing information of the reference signal corresponding to the first uplink channel; Time information of the first downlink channel; The timing information of the reference signal corresponding to the first downlink channel; The time information corresponding to the uplink channel group, wherein the uplink channel group includes the first uplink channel; The time information corresponding to the downlink channel group, wherein the downlink channel group includes the first downlink channel.

56. The communication device as described in any one of claims 49-55, characterized in that, The first information is used to indicate the channel information of the first uplink channel, and the first information carries one or more of the following: The characteristic information of the first uplink channel; Channel information sample of the first uplink channel.

57. The communication device as described in claim 56, characterized in that, The feature information of the first uplink channel is used to indicate the channel quality of the first uplink channel and / or the transmission quality of the first uplink channel.

58. The communication device as described in claim 56 or 57, characterized in that, The channel information sample of the first uplink channel is used to indicate the channel quality of the first uplink channel.

59. The communication device as described in claim 58, characterized in that, The channel information samples of the first uplink channel are represented by a matrix, and the dimensions of the matrix correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

60. The communication device as described in any one of claims 49-59, characterized in that, The first information is used to indicate the channel information of the first downlink channel, and the first information carries one or more of the following: Characteristic information of the first downlink channel; Channel information sample of the first downlink channel.

61. The communication device as described in claim 60, characterized in that, The characteristic information of the first downlink channel is used to indicate the channel quality of the first downlink channel and / or the transmission quality of the first downlink channel.

62. The communication device as described in claim 60 or 61, characterized in that, The channel information sample of the first downlink channel is used to indicate the channel quality of the first downlink channel.

63. The communication device as described in claim 62, characterized in that, The channel information samples of the first downlink channel are represented by a matrix, and the dimensions of the matrix correspond to one or more of the following: time domain; frequency domain; spatial domain; data stream; real part; imaginary part.

64. The communication device as described in any one of claims 49-63, characterized in that, The first device is a terminal device, and the second device is a network device; or The first device is a network device, and the second device is a terminal device.

65. A communication device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or send signals so that the terminal device performs the method as described in any one of claims 1-32.

66. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the device to perform the method as described in any one of claims 1-32.

67. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-32.

68. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1-32.

69. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1-32.

70. A computer program, characterized in that, The computer program causes the computer to perform the method as described in any one of claims 1-32.

Images