Communication method and device

Abstract

The present application relates to a communication method and device. The method comprises: a first communication device receiving first indication information, wherein the first indication information indicates a first RS resource; and the first communication device reporting channel state information (CSI) or demodulating data and / or control signaling on the basis of the first RS resource. By means of the embodiments of the present application, a first communication device can report CSI or demodulate data and / or control signaling on the basis of a received first RS resource, thereby saving on communication system resources.

Description

Communication method and device TECHNICAL FIELD

[0001] The present application relates to the field of communication, and more particularly, to a communication method and device. BACKGROUND

[0002] In a communication system, reference signals (RS) include various types, such as demodulation RS, measurement RS, etc. Using various RSs can help the receiving end to reduce complexity and improve reception performance. However, since the parameters of various RSs occupy time-frequency resources, the time-frequency resources actually used for transmitting data are reduced.

[0003] SUMMARY

[0004] Embodiments of the present application provide a communication method and device, which can save communication system resources.

[0005] Embodiments of the present application provide a communication method, comprising:

[0006] A first communication device receives first indication information, the first indication information indicating a first RS resource;

[0007] The first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource.

[0008] Embodiments of the present application provide a communication method, comprising:

[0009] A second communication device sends first indication information, the first indication information indicating a first RS resource, so that a first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource.

[0010] Embodiments of the present application provide a first communication device, comprising:

[0011] A transceiver unit is configured to receive first indication information, the first indication information indicating a first RS resource;

[0012] A processing unit is configured to report CSI or perform demodulation of data and / or control signaling based on the first RS resource.

[0013] Embodiments of the present application provide a second communication device, comprising:

[0014] A transceiver unit is configured to send first indication information, the first indication information indicating a first RS resource, so that a first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource.

[0015] An embodiment of the present application provides a communication device, comprising a transceiver, a processor and a memory. The memory is configured to store a computer program, the transceiver is configured to communicate with other devices, and the processor is configured to invoke and run the computer program stored in the memory, so that the communication device performs the communication method.

[0016] An embodiment of the present application provides a chip for implementing the communication method.

[0017] Specifically, the chip comprises a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the communication method.

[0018] An embodiment of the present application provides a computer readable storage medium configured to store a computer program, which causes a device to perform the communication method when the computer program is run by the device.

[0019] An embodiment of the present application provides a computer program product comprising computer program instructions, which causes a computer to perform the communication method.

[0020] An embodiment of the present application provides a computer program, which causes a computer to perform the communication method when the computer program is run by the computer. BRIEF DESCRIPTION OF DRAWINGS

[0021] FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

[0022] FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.

[0023] FIG. 3 is a schematic flowchart of a communication method according to another embodiment of the present application.

[0024] FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the present application.

[0025] FIG. 5 is a schematic flowchart of a communication method according to another embodiment of the present application.

[0026] FIG. 6 is a schematic block diagram of a first communication device according to an embodiment of the present application.

[0027] FIG. 7 is a schematic block diagram of a second communication device according to an embodiment of the present application.

[0028] FIG. 8 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0029] FIG. 9 is a schematic block diagram of a chip according to an embodiment of the present application.

[0030] FIG. 10 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0032] The technical solutions in the embodiments of the present application can be applied to various communication systems, for example, a Long Term Evolution (LTE) system, an Advanced long term evolution (LTE-A) system, a New Radio (NR) system, an evolved system of the NR system, a LTE-based access to unlicensed spectrum (LTE-U) system, a NR-based access to unlicensed spectrum (NR-U) system, a Non-Terrestrial Networks (NTN) system, a Universal Mobile Telecommunication System (UMTS), a Wireless Local Area Networks (WLAN), a Wireless Fidelity (WiFi), a 5th-Generation (5G) system, or other communication systems, etc.

[0033] Generally, a conventional communication system supports a limited number of connections, which is easy to implement. However, with the development of communication technology, a mobile communication system will not only support conventional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0034] In an implementation manner, the communication system in the embodiments of the present application can be applied to a Carrier Aggregation (CA) scenario, can also be applied to a Dual Connectivity (DC) scenario, and can also be applied to a Standalone (SA) network deployment scenario.

[0035] In an implementation, the communication system in embodiments of the present application can be applied to unlicensed spectrum, which can also be considered as shared spectrum, or applied to licensed spectrum, which can also be considered as unshared spectrum.

[0036] Embodiments of the present application describe various embodiments in combination with network devices and terminal devices, wherein the terminal device can also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0037] The terminal device can be a station (STA) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device having wireless communication function, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next-generation communication system such as a NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0038] In embodiments of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or in-vehicle; can also be deployed on water surface (such as ships, etc.); and can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0039] In embodiments of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc.

[0040] By way of example and not limitation, in embodiments of the present application, the terminal device can also be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes. The wearable device is a portable device that is directly worn on the body or integrated into the clothes or accessories of the user. The wearable device is not only a hardware device, but also a device that realizes powerful functions through software support and data interaction and cloud interaction. The broad sense of wearable smart devices includes devices with full functions and large sizes that can realize complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and devices that focus on a certain type of application function and need to be used in cooperation with other devices, such as smart phones, such as various smart wristbands and smart jewelry for monitoring vital signs.

[0041] In embodiments of the present application, the network device can be a device for communicating with the mobile device, and the network device can be an access point (Access Point, AP) in a WLAN, an evolved node B (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device in an NR network (gNB) or a future evolved PLMN network or a network device in an NTN network, etc.

[0042] By way of example and not limitation, in embodiments of the present application, the network device can have mobile characteristics, for example, the network device can be a mobile device. Alternatively, the network device can be a satellite, a balloon station. For example, the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geostationary earth orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, etc. Alternatively, the network device can also be a base station arranged at a position on land, water, etc.

[0043] In the embodiments of the present application, the network device can serve a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell. The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell (Small cell). The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, and the like. The small cell has the characteristics of small coverage and low transmit power, and is suitable for providing high-speed data transmission services.

[0044] FIG. 1 illustrates a communication system 100. The communication system includes one network device 110 and two terminal devices 120. In an embodiment, the communication system 100 can include multiple network devices 110, and each network device 110 can include other numbers of terminal devices 120 within its coverage range, which is not limited in the embodiments of the present application.

[0045] In an embodiment, the communication system 100 can further include a mobility management entity (MME), an access and mobility management function (AMF), and other network entities, which are not limited in the embodiments of the present application.

[0046] The network device can include an access network device and a core network device. That is, the wireless communication system further includes multiple core networks for communicating with the access network device. The access network device can be an evolved node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a “small base station”), a pico base station, an access point (AP), a transmission point (TP), or a new generation Node B (gNodeB) in a long-term evolution (LTE) system, a next radio (NR) system, or an authorized auxiliary access long-term evolution (LAA-LTE) system.

[0047] It should be understood that the devices with communication functions in the network / system in the embodiments of the present application can be referred to as communication devices. For example, the communication system shown in FIG. 1, the communication devices can include network devices and terminal devices with communication functions, which can be specific devices in the embodiments of the present application, and will not be described here. The communication devices can also include other devices in the communication system, such as network controllers, mobile management entities, and other network entities, which are not limited in the embodiments of the present application.

[0048] It should be understood that the terms "system" and "network" are often used interchangeably in this paper. The term "and / or" in this paper is only used to describe the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " generally represents an "or" relationship between the associated objects before and after it.

[0049] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, or indirect indication, or can represent an associated relationship. For example, A indicates B, which can mean that B can be obtained by A directly; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0050] In the description of the embodiments of the present application, the term "corresponding" can represent a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and being indicated, configuration and being configured, etc.

[0051] In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described as follows, which can be combined with the technical solutions of the embodiments of the present application in any way as optional schemes, and all belong to the protection scope of the embodiments of the present application.

[0052] In existing wireless communication systems (such as 3G, 4G / LTE, 5G / NR, WIFI system, etc.) and future wireless communication systems (such as 6G, future WIFI system, etc.), reference signals, also known as pilots, are widely used:

[0053] Demodulation Reference Signal: In order to reduce the demodulation complexity at the receiver side, and also to improve the reception performance, Demodulation Reference Signal (DMRS) is transmitted together with data. For example, DMRS for uplink Physical Downlink Shared Channel (PDSCH), DMRS for uplink Physical Downlink Control Channel (PDCCH), DMRS for uplink Physical Uplink Control Channel (PUCCH), DMRS for downlink PDSCH, DMRS for downlink PDCCH. For example, in Sidelink, there are also corresponding DMRS.

[0054] Measurement Reference Signal: In order to measure the channel characteristics, and / or interference, many different types of Measurement Reference Signal are introduced, for example Channel State Information-Reference Signal (CSI-RS) (for downlink), Sounding Reference Signal (SRS) (for uplink), etc. Measurement Reference Signal can also be used for beam measurement (for example, CSI-RS in 5G, Synchronization signal / PBCH (SS / PBCH), mobility measurement (for example, CSI-RS in 5G, SS / PBCH), etc.

[0055] Other Reference Signal: For example, in 5G, in order to help the receiver to obtain more accurate time-frequency synchronization information, and / or channel statistical characteristics (for example, in order to assist the receiver to improve channel estimation and / or reception performance), tracking Reference Signal (TRS or CSI-RS for tracking) is introduced. In order to eliminate the phase error of high frequency band, Phase-tracking Reference Signals (PT-RS) is introduced.

[0056] The above-mentioned signals generally have corresponding signals for uplink, downlink and sidelink. Different links may vary (for example, the pattern and / or sequence may be different), but the functions are similar.

[0057] As introduced before, introducing various RSs can help the receiver to reduce complexity and improve performance. However, the parameters of various RSs will also occupy time-frequency resources, which will lead to a reduction in time-frequency resources used to transmit data. How to reduce the overhead of RSs is a problem that must be considered in a communication system and is an important goal of system optimization.

[0058] Traditional communication algorithms have been widely used, and various RS designs and configurations are optimized for these traditional communication algorithms. With the development of technology, various new and more advanced communication algorithms / methods (hereinafter referred to as algorithms or methods for simplicity) have gradually developed, such as statistical-based methods, machine learning-based methods, artificial intelligence AI-based methods, deep learning-based methods, etc. In the future, they can be more applied to communication systems to improve system performance.

[0059] These new algorithms / methods have more powerful capabilities and can reduce the overhead of RSs. Therefore, based on the potential capabilities of these new algorithms / methods, how to reduce the RS overhead will be an important research point in future wireless communication design.

[0060] In the NR system, the reference signal design is relatively flexible, and appropriate RSs can be indicated by network configuration or signaling to achieve a compromise between receiving performance and RS overhead. However, the related scheme has certain limitations: the current RS scheme is based on traditional communication algorithms and fails to fully utilize the capabilities of more advanced algorithms / methods. By using more advanced communication algorithms / methods, the RS overhead can be further reduced. Some new dimensions are not utilized. By utilizing these new dimensions, the RS overhead can be further reduced while ensuring receiving performance.

[0061] In order to fully exploit and utilize the capabilities of new algorithms / methods, it is often necessary to collect certain data for algorithm development and optimization. Based on the collected data, algorithm development or AI model training can be performed. After the new algorithm is developed or the AI model is trained, the application of the new algorithm or the AI model, the specific scheme design has not been seen. Therefore, the embodiments of the present application give specific scheme design for this situation (algorithm application or AI model inference). In the following description, AI model inference is taken as an example to describe the scheme. However, the AI model inference in these schemes can also be replaced by using algorithms to obtain output or using receivers to obtain output and the like.

[0062] FIG. 2 is a schematic flow chart of a communication method 200 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method comprises at least part of the following.

[0063] S210, the first communication device receives first indication information, the first indication information indicating a first RS resource;

[0064] S220, the first communication device reports channel state information (CSI) or performs demodulation of data and / or control signaling based on the first RS resource.

[0065] In the embodiments of the present application, the first communication receives first indication information from the second communication. The first communication device can be a terminal device, and the second communication device can be a network device. The first communication device can be a first terminal device, and the second communication device can be a second terminal. The indication information in the embodiments of the present application can also be referred to as indication, indication signaling, etc. The first communication device can report CSI to the second communication device based on the first RS resource. The first communication device can demodulate a data channel or a control channel based on the first RS resource. Based on the received first RS resource, the first communication device can report CSI or perform demodulation of data and / or control signaling, thereby saving communication system resources.

[0066] In an implementation, the first RS resource is used for channel measurement.

[0067] In the embodiments of the present application, the first communication device can perform channel measurement based on the first RS resource to obtain channel measurement results. For example, the channel measurement results can include one or more of the following: a channel matrix, a characteristic vector corresponding to the channel, a precoding matrix corresponding to the channel, a rank indication, etc. Based on the channel measurement results, new algorithms such as artificial intelligence can be used for processing, and then the processed CSI can be reported. The number of ports corresponding to the reported CSI can be the same as or different from the number of ports corresponding to the first RS resource.

[0068] In the embodiments of the present application, the first communication device can perform demodulation of data and / or demodulation of control signaling based on the first RS resource. For example, the first RS resource is a demodulation reference signal (DMRS), and the first communication device can demodulate a data channel or a control channel based on the DMRS. One implementation method is that the first communication device can first obtain a channel estimation result according to the first RS resource, and then use the channel estimation result to demodulate the data channel or the control channel.

[0069] In the embodiments of the present application, the first RS resource group can be indicated by the indication information, and the first RS resource is one RS resource in the first RS resource group. The indication information indicating the first RS resource group and the first indication information can be the same information, which can compress the signaling overhead. The indication information indicating the first RS resource group can be included in the first indication information, which can compress the signaling overhead. The indication information indicating the first RS resource group and the first indication information can be transmitted in the same signaling, which has smaller signaling overhead and higher flexibility. The indication information indicating the first RS resource group and the first indication information can be transmitted by different signaling, which has better flexibility in signaling design.

[0070] In the embodiments of the present application, the measurement metric (or measurement quantity) and / or the report metric (or report quantity) and other parameters can also be indicated by the indication information. The indication information indicating the parameters and the first indication information can be the same information, or the indication information indicating the parameters can be included in the first indication information, or the indication information indicating the parameters and the first indication information can be transmitted in the same signaling, or the indication information indicating the parameters and the first indication information can be transmitted by different signaling. The benefits of the above transmission schemes are similar to those of the transmission schemes of the indication information indicating the first RS resource group and the first indication information, which can be referred to the related description.

[0071] FIG. 3 is a schematic flowchart of a communication method 300 according to another embodiment of the present application. The method can include one or more features of the above-described method. In an implementation, the method further includes:

[0072] S310, the first communication device receives second indication information:

[0073] The above step S220 can include: S320, the first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource and / or the second indication information.

[0074] In the embodiments of the present application, the first communication device can receive second indication information from the second communication device. The second indication information can indicate which AI model the UE uses, or which model to use, to improve communication performance.

[0075] In an embodiment, the second indication information indicates one or more of the following: the first AI model, an identifier of the first AI model, a number of the first AI model, an indication identifier, an indication number, an association identifier, and a consistency identifier. In one approach, the identifier of the first AI model or the number of the first AI model is indicated by the second indication information, so that the model can be directly indicated, and the signaling design is simple and direct. After receiving the second indication information, the first communication device can determine the first AI model to be used according to the identifier of the first AI model or the number of the first AI model. In another approach, the indication identifier, the indication number, or the association identifier can not be directly related to the model, and the model can not be directly indicated by the second indication information, so that the AI model related information is not exposed to the opposite end, for example, some information of the UE side model is not exposed to the network. The second indication information can be transmitted in one or more of the following signaling: RRC signaling, MAC CE signaling, system information, broadcast information, and DCI.

[0076] In the embodiments of the present application, one or more of the second indication information, the first indication information, the indication information indicating the first RS resource group, and the indication information indicating the parameter can be the same information; or the second indication information can be included in one or more of the first indication information, the indication information indicating the first RS resource group, and the indication information indicating the parameter; or one or more of the second indication information, the first indication information, the indication information indicating the first RS resource group, and the indication information indicating the parameter can be transmitted in the same signaling; or one or more of the second indication information, the first indication information, the indication information indicating the first RS resource group, and the indication information indicating the parameter can be transmitted by different signaling. The benefits of the above transmission schemes are similar to those of the transmission schemes of the indication information indicating the first RS resource group and the first indication information, and can be referred to the related description.

[0077] In an embodiment, the first communication device reports CSI, the CSI corresponding to a second number of ports, or the first communication device demodulates data and / or control signaling, the data and / or control signaling being transmitted corresponding to the second number of ports; wherein the first RS resource has a first number of ports, and the first number is less than the second number.

[0078] In the embodiments of the present application, the first communication device can determine the second quantity according to the first RS resource and / or the second indication information. For example, it is assumed that the training data of the AI model includes input information and output information. In one way, if the training data set contains part of the data corresponding to the second indication information taking value X. If the output information in the training data corresponding to the second indication information taking value X corresponds to the second quantity of ports, and the first communication device receives the second indication information taking value X, the second quantity can be determined. In another way, if the output information in the training data corresponding to the second indication information taking value X corresponds to the second quantity of ports, and at least part of the features of the input information in the training data are the same as the first RS resource, then the first communication device can determine the second quantity according to the first RS resource and the received second indication information taking value X. For example, the features of the input information that are the same as the first RS resource can include one or more of the port number, the RS pattern, the RS time domain density, the RS frequency domain density, etc. Then, the first communication device can report the CSI corresponding to the second quantity of ports to the second communication device.

[0079] In the embodiments of the present application, the first communication device can demodulate the data (such as PDSCH) and / or control signaling (such as PDCCH) corresponding to the second quantity of ports according to the first RS resource and / or the second indication information. For example, it is assumed that the training data of the AI model includes input information and output information. If the output information in the training data corresponding to the second indication information taking value X corresponds to the second quantity of ports, and at least part of the features of the input information in the training data are the same as the first RS resource, then the first communication device can determine which AI model to use according to the received second indication information taking value X (which can also be combined with the first RS resource). Then, the data corresponding to the second quantity of ports is demodulated and / or the control signaling corresponding to the second quantity of ports is demodulated using this AI model and the first RS resource.

[0080] In one implementation, the method further includes: the first communication device receiving third indication information, the third indication information indicating the value of the second quantity. In the embodiments of the present application, the first communication device can receive the third indication information from the second communication device. The first communication device determines the second quantity based on the third indication information. The first communication device can determine which AI model to use according to the received second indication information taking value X (which can also be combined with the first RS resource), report the CSI corresponding to the second quantity of ports, or demodulate the data corresponding to the second quantity of ports, or demodulate the control signaling corresponding to the second quantity of ports using this AI model and the first RS resource.

[0081] In one implementation, the method further includes: the first communication device receiving fourth indication information, the fourth indication information indicating the second RS resource.

[0082] In the embodiments of the present application, the first communication device can receive fourth indication information from the second communication device. If the first RS resource corresponds to a first number of ports, the second RS resource corresponding to a second number of ports is indicated by the fourth indication information. The first communication device can report the CSI information corresponding to the second number of ports according to one or more of the first RS resource, the second indication information and the second RS resource.

[0083] In the embodiments of the present application, the first communication device can determine the second number according to the fourth indication information or the second RS resource. For example, the second RS resource does not actually send a reference signal, but only provides an RS configuration information. The first communication device determines the second number according to the second RS. For another example, assuming that the training data of the AI model includes input information and output information. If the output information corresponding to the second number of ports in the training data corresponding to the value X of the second indication information, and at least part of the features of the input information in the training data are the same as the first RS resource, and at least part of the features in the output information are the same as the second RS resource, the first communication device can determine the second number according to the received second indication information value X (which can also be combined with the first RS resource and / or the second RS resource). For example, the features of the output information that are the same as the second RS resource can include one or more of the number of ports, the RS pattern, the RS time domain density, the RS frequency domain density, etc.

[0084] In an implementation, the method further includes: the first communication device receiving fifth indication information, the fifth indication information indicating the relationship between the first RS resource and the second RS resource.

[0085] In the embodiments of the present application, the first communication device can receive fifth indication information from the second communication device. The fourth indication information and the fifth indication information can be the same information; or the fourth indication information can be included in the fifth indication information; or the fourth indication information and the fifth indication information can be transmitted in the same signaling; or the fourth indication information and the fifth indication information can be transmitted through different signaling.

[0086] In the embodiments of the present application, examples of the indication mode of the relationship between the first RS resource and the second RS resource are as follows:

[0087] Mode 1: The signaling configuration of the first RS resource group contains a first domain, the signaling configuration of the second RS resource group contains a second domain, the value of the first domain and the value of the second domain are the same, indicating that the first RS resource group and the second resource group have a relationship.

[0088] Manner 2: The signaling configuration of the first RS resource group contains a third field, and the value of the third field indicates the second RS resource group, indicating that the first RS resource group and the second RS resource group have a correlation relationship.

[0089] Manner 3: The signaling configuration of the second RS resource group contains a fourth field, and the value of the fourth field indicates the first RS resource group, indicating that the first RS resource group and the second RS resource group have a correlation relationship.

[0090] Manner 4: The first RS resource group and the second RS resource group appear in pairs in the resource configuration signaling, indicating that the first RS resource group and the second RS resource group have a correlation relationship.

[0091] Manner 5: The first RS resource group and the second RS resource group are indicated simultaneously in the same measurement configuration signaling or the same reporting configuration signaling.

[0092] In manners 1 to 5, since the first RS resource group and the second RS resource group have a correlation relationship, the first RS resource and the second RS resource also have a correlation relationship. In this way, compared with directly indicating the correlation relationship between resources, the signaling overhead can be reduced.

[0093] Manner 6: The signaling configuration of the first RS resource contains a fifth field, and the signaling configuration of the second RS resource contains a sixth field, the value of the fifth field and the value of the sixth field are the same, indicating that the first RS resource and the second RS resource have a correlation relationship.

[0094] Manner 7: The signaling configuration of the first RS resource contains a seventh field, and the value of the seventh field indicates the second RS resource, indicating that the first RS resource and the second RS resource have a correlation relationship.

[0095] Manner 8: The signaling configuration of the second RS resource contains an eighth field, and the value of the eighth field indicates the first RS resource, indicating that the first RS resource and the second RS resource have a correlation relationship.

[0096] Manner 9: The first RS resource and the second RS resource appear in pairs in the resource configuration signaling.

[0097] In manners 6 to 9, compared with directly indicating the correlation relationship between resource groups, flexibility can be increased, and the network can indicate various pairing relationships in a more fine-grained manner.

[0098] Manner 10: The first RS resource and the second RS resource are indicated simultaneously in the same measurement configuration signaling or the same reporting configuration signaling. Compared with directly indicating the correlation relationship between resource groups, flexibility can be increased.

[0099] In an embodiment, the method further comprises: the first communication device receiving sixth indication information, the sixth indication information indicating the second RS resource, and the first RS resource corresponding to part of the second RS resource, i.e., part of the second RS resource constitutes the first RS resource, and the part of the second RS resource can be part of frequency domain resource, and / or part of time domain resource, and / or part of port in the second RS resource. One implementation method is that the first communication device can first receive the first indication information and the sixth indication information from the second communication device. The first indication information indicates the first RS resource, and the sixth indication information indicates the second RS resource, and the first RS resource uses one or more of the part of the port, the part of the time domain resource, and the part of the frequency domain resource in the second RS resource. Another implementation method is that the sixth indication information and the first indication information are the same indication information.

[0100] In an embodiment, the first indication information indicates the first RS resource and the second RS resource, and the first RS resource is used for channel measurement. The second RS resource can be used for channel measurement, or can not be used for channel measurement, and only provides a corresponding RS configuration information. Optionally, part of the information (e.g., part of the frequency domain resource, and / or part of the time domain resource, and / or part of the port) in the second RS resource constitutes the first RS resource. One implementation method is that the first communication device receives the first indication information from the second communication device, and the first indication information indicates the first RS resource and the second RS resource. The first communication device receives the sixth indication information from the second communication device, and the sixth indication information indicates the second RS resource and indicates that part of the information in the second RS resource can constitute the first RS resource.

[0101] In an embodiment, the method further comprises: the first communication device receiving reporting indication signaling, the reporting indication signaling indicating one or more of the following information: reporting type related information, reporting format related information, reporting data quantization method related information, information related to reporting Rank (RI) restriction, reporting error related information, reporting environment related information, time information and / or time point information corresponding to the reporting information. In the embodiment of the present application, in the CSI reporting scenario, the first communication device can receive the reporting indication signaling from the second communication device. The information indicated by the reporting indication signaling can be transmitted by any one of the indication information mentioned in the present application, such as the first indication information, the second indication information, the third indication information, etc., or can be transmitted by other indication information.

[0102] In an implementation, the method further comprises: the first communication device sending a first reporting signaling, the first reporting signaling comprising first reporting results, the first reporting results being obtained based on the first RS resource. In the embodiments of the present application, the first communication device performs channel measurement based on the first RS resource to obtain the first reporting results. Then, the first communication device reports one or more first reporting results to the second communication device through the first reporting signaling.

[0103] In an implementation, the first reporting signaling further comprises one or more of the following information related to the first reporting results: time information, cell related information, location information, speed related information, reliability related information, error related information, and wireless environment related information. The advantage is that the time information can be used to determine the time related to the reporting results, and the other information facilitates the judgment of the effectiveness of the model.

[0104] For example, the time information can comprise timestamp information, or can comprise time instants corresponding to one or more first reporting results. For another example, the cell related information can comprise an identifier of a serving cell in which the first communication device is located. For another example, the location information can comprise a location of the first communication device. For another example, the speed related information can comprise a moving speed of the first communication device. For another example, the reliability related information can comprise a confidence degree of the reporting results of the first communication device. For another example, the error related information can comprise variance information of the reporting results of the first communication device. For another example, the wireless environment related information can comprise one or more of the following: a characteristic of a current channel, a type of the current channel, SINR, RSRP, and the like.

[0105] In an embodiment, the method further comprises: receiving, by the first communication device, seventh indication information, the seventh indication information indicating one or more of measurement, reporting or demodulation based on the second RS resource. In the embodiments of the present application, the first communication device can receive the seventh indication information from the second communication device. If the seventh indication information indicates that the first communication device performs measurement, reporting or demodulation based on the second RS resource, the first communication device can perform measurement, reporting or demodulation based on the second RS resource after obtaining the second RS resource based on any of the above-mentioned manners. The seventh indication information and one or more of the first indication information, the second indication information, the third indication information, the fourth indication information, the fifth indication information and the sixth indication information can be the same information. Alternatively, the seventh indication information can be included in one or more of the first indication information, the second indication information, the third indication information, the fourth indication information, the fifth indication information and the sixth indication information. Alternatively, the seventh indication information and one or more of the first indication information, the second indication information, the third indication information, the fourth indication information, the fifth indication information and the sixth indication information can be transmitted in the same signaling. Alternatively, the seventh indication information and one or more of the first indication information, the second indication information, the third indication information, the fourth indication information, the fifth indication information and the sixth indication information can be transmitted through different signaling.

[0106] In an embodiment, the method further comprises: receiving, by the first communication device, eighth indication information, the eighth indication information indicating a reporting manner. In the embodiments of the present application, the first communication device can receive the eighth indication information from the second communication device. The eighth indication information can indicate one or more reporting manners of CSI.

[0107] In an embodiment, the reporting manner comprises one or more of the following:

[0108] Option 1: reporting the second reporting result through a second reporting signaling, wherein the second reporting result is obtained based on the second RS resource. This manner is simple to implement on the first communication device.

[0109] Option 2: reporting the second reporting result through a second reporting signaling, and the second reporting signaling further carries information indicating that the second reporting result is obtained based on the second RS resource or the first RS resource. This manner has better flexibility to implement on the first communication device.

[0110] Option 3: reporting the first reporting result and the second reporting result through a second reporting signaling, wherein the first reporting result is obtained based on the first RS resource, and the second reporting result is obtained based on the second RS resource. This manner can report more information, which is convenient for the second communication device, for example, the network side, to better judge performance and assist the second communication device to make better configuration optimization.

[0111] In embodiments of the present application, the eighth indication information can indicate which option the first terminal device uses. For example, a first value of the eighth indication information indicates that the first terminal device uses option 1, and a second value of the eighth indication information indicates that the first terminal device uses option 2; or a first value of the eighth indication information indicates that the first terminal device uses option 1, and a second value of the eighth indication information indicates that the first terminal device uses option 3; or a first value of the eighth indication information indicates that the first terminal device uses option 2, and a second value of the eighth indication information indicates that the first terminal device uses option 3; or a first value of the eighth indication information indicates that the first terminal device uses option 1, and a second value of the eighth indication information indicates that the first terminal device uses option 2; or a first value of the eighth indication information indicates that the first terminal device uses option 1, a second value of the eighth indication information indicates that the first terminal device uses option 2, and a third value of the eighth indication information indicates that the first terminal device uses option 3.

[0112] In an implementation, the CSI includes one or more of the following: precoding matrix indication (PMI) information, channel matrix information, channel eigenvector information, channel quality indicator (CQI) information, and rank indicator (RI) information.

[0113] In an implementation, the CQI information and / or the RI information is obtained in one or more of the following ways:

[0114] based on measurement of the first RS resource, and after adding an adjustment value;

[0115] determined according to network indication information, and obtained based on an output result of an AI model.

[0116] For example, the CQI information and / or the RI information can be obtained by the first communication device directly based on measurement of the first RS resource (e.g., not based on an output result of an AI model).

[0117] For another example, the CQI information and / or the RI information can be obtained by the first communication device directly based on measurement of the first RS resource after adding an adjustment value, which can be determined by the first communication device or according to indication information of the second communication device, e.g., a network side.

[0118] For another example, the CQI information and / or the RI information can be obtained based on an output result of an AI model of the first communication device.

[0119] In an implementation, the method further includes: reporting, by the first communication device, first capability information. In embodiments of the present application, the first communication device can report the first capability information to the second communication device.

[0120] In an embodiment, the first capability information comprises one or more of the following:

[0121] The first communication device reports the capability of CSI corresponding to the second number of ports based on the RS resource of the first number of ports;

[0122] The first communication device reports the capability of data and / or control signaling demodulation corresponding to the second number of ports based on the RS resource of the first number of ports.

[0123] In an embodiment, the first capability information is independently reported according to one or more of the following: per band, per band combination, per band per band combination, per CC per band per band combination (or FSPC), frequency range, terminal.

[0124] Any one or more of the above-mentioned independent reporting of the first capability information can allow the first communication device to have greater freedom. For example, a terminal can support a new function in a certain or certain band (band), and does not support the new function in other bands, so as to allow more terminals to support the new function. For another example, a terminal can not support a function under a certain band combination, but support the function under another band combination, so as to allow more terminals to support the new function. For another example, a terminal can not support a function under a certain carrier aggregation (CA), but support the function under another CA combination, so as to allow more terminals to support the new function. For another example, a terminal does not support a function at low frequency, but supports the function at high frequency, so as to allow more terminals to support the new function. In addition, independent reporting for terminals can reduce the signaling overhead of terminal capability reporting.

[0125] In an embodiment, the method further comprises: the first communication device reports second capability information. In the embodiment of the present application, the first communication device can report the second capability information to the second communication device.

[0126] In an embodiment, the second capability information comprises one or more of the following:

[0127] The first communication device reports the capability of CSI corresponding to the second number of ports based on the RS resource of the first number of ports;

[0128] The first communication device has a capability of demodulating data and / or control signaling corresponding to the second number of ports based on the RS resource of the first number of ports.

[0129] In an embodiment, the second capability information is carried by terminal assistance information, such as UE assistance information. This way is more flexible, and can indicate in which serving cells the first communication device has the capability according to current situation (e.g. computing resource, power consumption, power level).

[0130] In an embodiment, the second capability information is reported for a serving cell.

[0131] In an embodiment, when the first communication device reports the second capability information, the second capability information is applicable to the serving cell currently transmitting the second capability information or all serving cells of the first communication device. This way can save signaling overhead.

[0132] In an embodiment, when the first communication device reports the second capability information, the second capability information is applicable to the serving cell indicated by the serving cell indication information. This way is more flexible, and can indicate in which serving cells the first communication device has the capability according to current situation.

[0133] In an embodiment, the second number is determined based on one or more of the following.

[0134] The first indication information; the first RS resource; the second indication information; the first indication information and the second indication information;

[0135] The first RS resource and the second indication information; the third indication information, indicating the value of the second number;

[0136] The fourth indication information, indicating the second RS resource; the second RS resource; the first RS resource and the second RS resource.

[0137] In the embodiments of the present application, specific examples of determining the second number can be referred to the related description in the above embodiments, and will not be described here.

[0138] FIG. 4 is a schematic flowchart of a communication method 400 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited to this. The method comprises at least part of the following.

[0139] S410, the second communication device sends first indication information, the first indication information indicating the first RS resource, so that the first communication device reports CSI or demodulates data and / or control signaling based on the first RS resource. In the embodiment of the present application, the second communication device can send the first indication information to the first communication device.

[0140] In an implementation, the first RS resource is used for channel measurement.

[0141] FIG. 5 is a schematic flowchart of a communication method 500 according to another embodiment of the present application. The method can include one or more features of the above-mentioned methods. In an implementation, the method further includes:

[0142] S510, the second communication device sends second indication information, so that the first communication device reports CSI or demodulates data and / or control signaling based on the first RS resource and / or the second indication information. In the embodiment of the present application, the second communication device can send the second indication information to the first communication device.

[0143] In an implementation, the second indication information indicates one or more of the following: the first AI model, an identifier of the first AI model, a number of the first AI model, an indication identifier, an indication number, an association identifier, a consistency identifier.

[0144] In an implementation, the first communication device reports CSI, the CSI corresponding to a second number of ports, or the first communication device demodulates data and / or control signaling, the data and / or control signaling transmitting a second number of ports; wherein the first RS resource has a first number of ports, the first number being less than the second number.

[0145] In an implementation, the method further includes: the second communication device sends third indication information, the third indication information indicating a value of the second number. In the embodiment of the present application, the second communication device can send the third indication information to the first communication device.

[0146] In an implementation, the method further includes: the second communication device sends fourth indication information, the fourth indication information indicating a second RS resource, the second RS resource being used to provide RS configuration information. In the embodiment of the present application, the second communication device can send the fourth indication information to the first communication device.

[0147] In an implementation, the method further includes: the second communication device sends fifth indication information, the fifth indication information indicating a relationship between the first RS resource and the second RS resource. In the embodiment of the present application, the second communication device can send the fifth indication information to the first communication device.

[0148] In an embodiment, the method further includes: the second communication device sending sixth indication information, the sixth indication information indicating the second RS resource and the first RS resource corresponding to part of the second RS resource. In the embodiment of the present application, the second communication device can send the sixth indication information to the first communication device.

[0149] In an embodiment, the first indication information indicates the first RS resource and the second RS resource, the first RS resource being used for channel measurement and the second RS resource being used for providing RS configuration information.

[0150] In an embodiment, the method further includes: the second communication device sending reporting indication signaling. In the embodiment of the present application, the second communication device can send the reporting indication signaling to the first communication device.

[0151] In an embodiment, the reporting indication signaling indicates one or more of the following information: reporting type related information, reporting format related information, reporting data quantization method related information, information related to reporting Rank (RI) restriction, reporting error related information, reporting environment related information, time information and / or time point information corresponding to the reporting information.

[0152] In an embodiment, the method further includes: the second communication device sending first reporting signaling. In the embodiment of the present application, the second communication device can send the first reporting signaling to the first communication device.

[0153] In an embodiment, the first reporting signaling includes a first reporting result, the first reporting result being obtained based on the first RS resource.

[0154] In an embodiment, the first reporting signaling further includes one or more of the following information related to the first reporting result: time information, cell related information, location information, speed related information, reliability related information, error related information, and wireless environment related information.

[0155] In an embodiment, the method further includes: the second communication device sending seventh indication information, the seventh indication information indicating one or more of the following operations performed by the first communication device based on the second RS resource: measurement, reporting or demodulation. In the embodiment of the present application, the second communication device can send the seventh indication information to the first communication device.

[0156] In an embodiment, the method further includes: the second communication device sending eighth indication information, the eighth indication information indicating a reporting manner. In the embodiment of the present application, the second communication device can send the eighth indication information to the first communication device.

[0157] In an embodiment, the reporting manner includes one or more of the following:

[0158] reporting a second reporting result through a second reporting signaling, wherein the second reporting result is obtained based on the second RS resource;

[0159] reporting a second reporting result through a second reporting signaling, and the second reporting signaling further carries information indicating that the second reporting result is obtained based on the second RS resource or the first RS resource;

[0160] reporting a first reporting result and a second reporting result through a second reporting signaling, wherein the first reporting result is obtained based on the first RS resource, and the second reporting result is obtained based on the second RS resource.

[0161] In an implementation manner, the CSI comprises one or more of the following: precoding matrix indication (PMI) information, channel matrix information, channel eigenvector information, channel quality indication (CQI) information, and rank indication (RI) information.

[0162] In an implementation manner, the CQI information and / or the RI information is obtained in one or more of the following manners:

[0163] based on the first RS resource;

[0164] obtained based on the first RS resource and after adding an adjustment value;

[0165] determined according to network indication information;

[0166] obtained based on an output result of a first AI model.

[0167] In an implementation manner, the method further comprises: receiving, by the second communication device, first capability information reported by the first communication device.

[0168] In an implementation manner, the first capability information comprises one or more of the following:

[0169] the first communication device reports a capability of reporting CSI corresponding to a second number of ports based on RS resources of a first number of ports;

[0170] the first communication device reports a capability of performing data and / or control signaling demodulation corresponding to a second number of ports based on RS resources of a first number of ports.

[0171] In an implementation manner, the first capability information is independently reported according to one or more of the following: a frequency band, a frequency band combination, each frequency band in the frequency band combination, each carrier of each frequency band in the frequency band combination, a frequency band range, and a terminal.

[0172] In an implementation manner, the method further comprises: receiving, by the second communication device, second capability information reported by the first communication device.

[0173] In an embodiment, the second capability information comprises one or more of the following:

[0174] The first communication device reports the capability of CSI corresponding to the second number of ports based on the RS resource of the first number of ports;

[0175] The first communication device reports the capability of data and / or control signaling demodulation corresponding to the second number of ports based on the RS resource of the first number of ports.

[0176] In an embodiment, the second capability information is carried by terminal assistance information.

[0177] In an embodiment, the second capability information is reported for a serving cell.

[0178] In an embodiment, when the first communication device reports the second capability information, the second capability information is applicable to the serving cell currently transmitting the second capability information or all serving cells of the first communication device.

[0179] In an embodiment, when the first communication device reports the second capability information, the second capability information is applicable to the serving cell indicated by the serving cell indication information.

[0180] In an embodiment, the second number is determined based on one or more of the following:

[0181] The first indication information;

[0182] The first RS resource;

[0183] The second indication information;

[0184] The first indication information and the second indication information;

[0185] The first RS resource and the second indication information:

[0186] The third indication information indicating the value of the second number:

[0187] The fourth indication information indicating the second RS resource;

[0188] The second RS resource;

[0189] The first RS resource and the second RS resource.

[0190] The specific examples of the second communication device performing the method 400, 500 of the embodiment can refer to the related description of the second communication device in the method 200, 300 described above. For brevity, they will not be described here.

[0191] In some application scenarios, as the number of antennas increases, the reference signal (RS) overhead becomes larger and larger. By using an AI model, complete channel information can be inferred by measuring RSs with small overhead (e.g., few ports, low density, etc.). After the corresponding AI model is trained, inference needs to be performed. The embodiments of the present application provide specific methods related to inference (wherein the measurement RS corresponds to a first RS, and the target RS corresponds to a second RS).

[0192] I. Configuration information

[0193] Alt. 1: Measurement RS and associated ID (fourth indication information).

[0194] Alt. 2: Measurement RS, Associated ID, and reporting port indication.

[0195] Alt. 3: Measurement RS and reporting port indication.

[0196] Alt. 4: Measurement RS, Associated ID, and target RS (corresponding to AI model output).

[0197] On the basis of Alt. 4, Alt. 6 measures the RS and the target RS association indication.

[0198] Alt. 5: Measurement RS and target RS (corresponding to AI model output).

[0199] On the basis of Alt. 5, Alt. 7 measures the RS and the target RS association indication.

[0200] Alt. 8: The sub-pattern of the target RS is the measurement RS and the Associated ID, wherein the target RS corresponds to the AI model output.

[0201] Alt. 9: The sub-pattern of the target RS is the measurement RS, wherein the target RS corresponds to the AI model output.

[0202] II. Reporting indication and reporting method

[0203] It can be simply combined with prediction.

[0204] III. Fallback mode

[0205] 1. Signaling indication.

[0206] 2. Different options for reporting, for example:

[0207] Option 1: Based on target RS reporting.

[0208] Option 2: Carry information to indicate whether to report based on target RS or measurement RS.

[0209] Option 3: Report based on both target RS and measurement RS.

[0210] Combination of the above different options.

[0211] Four, UE AI capability dynamic reporting (second terminal capability).

[0212] Five, UE capability reporting (first terminal capability).

[0213] The scheme of the embodiments of the present application can be applied to a centimeter wave communication scenario, can also be used for a millimeter wave communication scenario, can also be applied to a low frequency communication scenario, and can also be applied to other various communication scenarios.

[0214] In the embodiments of the present application, In can correspond to an AI model input, or In is an AI model input, including the following cases:

[0215] In is directly used as the input of the AI model;

[0216] In is processed and then used as the input of the AI model (that is, the input of the AI model is based on In).

[0217] In the embodiments of the present application, Out can correspond to an AI model output, or Out is an AI model output, including the following cases:

[0218] Out is the direct output of the AI model:

[0219] The AI model output is processed to obtain Out (that is, Out is based on the output of the AI model).

[0220] In and Out above represent any information corresponding thereto in the following.

[0221] In the embodiments of the present application, the technical scheme is described taking the communication between a UE (first terminal device) and a network (first network device) as an example. The technical scheme introduced can also be used for communication between a UE (first terminal device) and a UE (second terminal device) (for example, sidelink transmission, D2D transmission, etc.), as long as the first network device is replaced by the second terminal device (an example of a second communication device), which can be directly generalized, and therefore will not be described again.

[0222] The embodiments of the present application can be used for UE-side AI model inference.

[0223] One, configuration / instruction information

[0224] The first terminal device (an example of a first communication device) receives first indication information transmitted by the first network device (an example of a second communication device), and determines a first RS resource (also referred to as a first RS for short, and RS resource is referred to as RS for short in this embodiment of this application) according to the first indication information.

[0225] Optionally, the first terminal device receives first AX1 indication information transmitted by the first network device, and determines a first RS resource set according to the first AX1 indication information, and the first RS resource belongs to one RS resource in the first RS resource set (or the first RS belongs to one RS in the first RS resource set). In this way, the first indication information indicates one RS resource set, the first terminal device can perform measurement and / or reporting according to multiple RSs, and signaling flexibility is better.

[0226] The RS resource set can also be referred to as an RS set (RS group), and in the following description, the RS group can be referred to as an RS group for convenience.

[0227] The RS is transmitted on the resource corresponding to the RS resource, and therefore a certain RS can be represented by the corresponding RS resource.

[0228] It should be noted that the concept of the RS resource set can or can not appear in the actual protocol. The resource set (for example, the first RS resource set) mentioned in the scheme of this embodiment of this application can be an actual resource set appearing in the protocol, or can be a concept of logically dividing different RS resources, and does not actually appear in the protocol. For example, there are two RS resources, which can be classified into one RS group, and the second one is classified into another RS group. For another example, if there is one RS resource, it can also be classified into one RS group.

[0229] As an example, the first RS resource is a CSI-RS resource; as an example, the RS resource included in the first RS resource set is a CSI-RS resource.

[0230] As an example, the first RS resource is a demodulation reference signal (DMRS; as an example, the RS resource contained in the first RS resource set is a demodulation reference signal (DMRS). The demodulation reference signal is originally intended to help demodulating data and / or control signaling. But the demodulation reference signal can also obtain channel information (may also be called equivalent channel), so the DMRS will also be used for channel measurement below. For example, the DMRS can be a DMRS of a data channel (e.g. a DMRS of a PDSCH). For another example, the DMRS can be a DMRS of a downlink control channel (e.g. a DMRS of a PDCCH).

[0231] As other examples, the first RS resource can be other types of RS resources (i.e. non-CSI-RS resource, non-DMRS). As other examples, the RS resource contained in the first RS resource set can be other types of RS resources (i.e. non-CSI-RS resource, non-DMRS).

[0232] The first indication information can be transmitted by RRC signaling, or by MAC CE signaling, or by system information (System Information) transmission, or by broadcast information (Broadcast information), or by DCI transmission.

[0233] The first indication information can be transmitted by RRC signaling, or by MAC CE signaling, or by system information (System Information) transmission, or by broadcast information (Broadcast information), or by DCI transmission.

[0234] For transmission of the first AX1 indication information, examples are as follows:

[0235] One embodiment is that the first AX1 indication information and the first indication information are the same information. In this way, the signaling overhead can be compressed.

[0236] One embodiment is that the first AX1 indication information is contained in the first indication information. In this way, the signaling overhead can be compressed.

[0237] Another embodiment is that the first AX1 indication information and the first indication information are transmitted in the same signaling. In this way, the signaling overhead is smaller than the following scheme, and the flexibility is higher than the above scheme.

[0238] Another embodiment is that the first indication information and the second indication information are transmitted through different signaling. In this way, the signaling design flexibility is better.

[0239] The following description is taken as an example of the first RS. If the first RS resource set contains N1 RS resources (N1 is 1, or an integer greater than 1), the scheme taken as an example of the first RS can be extended to all N1 RSs in the first RS resource set, and will not be described again.

[0240] The first RS is used for channel measurement. For example, the first terminal can obtain one or more of the following based on the first RS measurement: a channel (or referred to as a channel matrix), a characteristic vector (eigen vector) corresponding to the channel, processing of the channel (for example, information of the channel in the angle-delay domain), a precoding matrix indicator (PMI) corresponding to the channel, a rank indication (RI), etc. For example, the first terminal can demodulate data and / or control information based on the RS measurement in the first RS (for example, demodulate PDSCH based on the first RS, and for another example, demodulate PDCCH based on the first RS).

[0241] Optionally, the first network device indicates through signaling (for example, denoted as the second indication information) that the first terminal device specifically measures what measurement metric (or referred to as measurement quantity), or specifically reports what report metric (or referred to as report quantity). For example, the first network device signaling can indicate through signaling the information type and / or information format reported by the first terminal. In this way, network optimization can be more flexible. Optionally, if the first RS is used for data and / or control channel demodulation, the first network device does not need to send the signaling (the second indication information).

[0242] For transmission of the second indication information, an example is as follows:

[0243] One embodiment is that the second indication information and the first indication information are the same information. In this way, the signaling overhead can be compressed.

[0244] One embodiment is that the second indication information is contained in the first indication information. In this way, the signaling overhead can be compressed.

[0245] Another embodiment is that the second indication information and the first indication information are transmitted in the same signaling. In this way, the signaling overhead is smaller than the following, and the flexibility is higher than the above scheme.

[0246] Another embodiment is that the first indication information and the second indication information are transmitted through different signaling. In this way, the signaling design has better flexibility.

[0247] II. UE inference

[0248] Optionally, the first network device also sends the second indication information to the first terminal device. In this way, it can be indicated which AI model is used by the UE, or which model is used, so as to improve the communication performance.

[0249] Optionally, the second indication information can indicate the first AI model, and the first terminal device uses the first AI model to perform corresponding subsequent operations (such as demodulating PDSCH, or demodulating PDCCH, or feeding back CQI information, and / or obtaining channel information) based on the first RS. The second indication information can indicate the identity or the number of the first AI model. In this way, the model is directly indicated, and the signaling design is simple and direct.

[0250] Optionally, the second indication information can indicate an identity, or a number, or an associated ID (associated ID), or a consistency ID (consistency ID). In this way, the model is not directly indicated, so that the AI model related information will not be exposed to the opposite side, for example, some information of the UE side model is not exposed to the network. In some examples, if the first terminal device sees that the second indication information indicates the same content (such as the same identity or the same number), assuming that it corresponds to the first second indication information and the second second indication information respectively, then the first terminal device can assume that the first RS resource corresponding to the two times of the second indication information sent by the network uses the same configuration and / or the network side condition is the same (such as using the same antenna, and / or using the same precoding, etc.).

[0251] One embodiment is that when the first terminal device receives the second indication information sent by the network with a value of X, if there is a model (denoted as ModeX) that is trained with data corresponding to an indication information with a value of X, then the first terminal device can assume or believe that this AI model (ModelX) is suitable for the current network configuration and / or network condition, for example, it can use the AI model ModelX and the first RS to obtain the measurement result and / or report the result, or use the AI model ModelX and the first RS to report the CSI (such as one or more of PMI, CQI, and RI), or use the AI model ModelX and the first RS to demodulate PDSCH / PDCCH.

[0252] The second indication information can be transmitted by RRC signaling, or by MAC CE signaling, or by system information (System Information) transmission, or by broadcast information (Broadcast information) transmission, or by DCI transmission.

[0253] For transmission of the second indication information, an example is as follows:

[0254] One embodiment is that the second indication information and the first indication information are the same information. In this way, the signaling overhead can be compressed.

[0255] One embodiment is that the second indication information is contained in the first indication information. In this way, the signaling overhead can be compressed.

[0256] Another embodiment is that the second indication information and the first indication information are transmitted in the same signaling. In this way, the signaling overhead is smaller than the following, and the flexibility is higher than the above scheme.

[0257] Another embodiment is that the second indication information and the first indication information are transmitted by different signaling. In this way, the signaling design flexibility is better.

[0258] For transmission of the second indication information, an example is as follows:

[0259] One embodiment is that the second indication information and the first indication information are the same information. In this way, the signaling overhead can be compressed.

[0260] One embodiment is that the second indication information is contained in the first indication information. In this way, the signaling overhead can be compressed.

[0261] Another embodiment is that the second indication information and the first indication information are transmitted in the same signaling. In this way, the signaling overhead is smaller than the following, and the flexibility is higher than the above scheme.

[0262] Another embodiment is that the second indication information and the first indication information are transmitted by different signaling. In this way, the signaling design flexibility is better.

[0263] For transmission of the second indication information, an example is as follows:

[0264] One embodiment is that the second indication information and the first indication information are the same information. In this way, the signaling overhead can be compressed.

[0265] One embodiment is that the second indication information is contained in the first indication information. In this way, the signaling overhead can be compressed.

[0266] Another embodiment is that the second indication information and the first AX2 indication information are transmitted in the same signaling. In this way, the signaling overhead is smaller than the following one, and the flexibility is higher than the above one.

[0267] Another embodiment is that the second indication information and the first AX2 indication information are transmitted in different signaling. In this way, the signaling design flexibility is better.

[0268] Alt.1: The UE determines K2 (K2 is a positive integer) according to the first RS and / or the second indication information, and reports the CSI information corresponding to the K2 ports. Or, the UE determines K2 (K2 is a positive integer) according to the first RS and the second indication information, and reports the CSI information corresponding to the K2 ports. Wherein the first RS has K1 ports, K1 < K2. Wherein the CSI information can contain PMI information, or can contain channel matrix information, or can include channel eigenvector information. In addition, the CSI information can also include CQI, and / or RI, etc.

[0269] Optionally, the first terminal device can derive K2 according to the second indication information. For example, in the data for training the AI model, the output results of the AI model corresponding to the received second indication information taking value X are all corresponding to K2 ports. The detailed example is that, assuming that the input and output of the AI model corresponding to the training data are denoted as a and b respectively, a sample is a pair of a and b, denoted as (a, b). If the training data set contains part of the data, the part of the data corresponds to the second indication information taking value X, and the b in each (a, b) corresponding to the second indication information taking value X is corresponding to K2, then the first terminal device receives the second indication information taking value X, and determines K2. In actual implementation, the signaling indication in the configuration corresponding to the training data does not necessarily have to be the same as the second indication information, as long as the value of the signaling indication in the configuration corresponding to the training data can have a corresponding relationship (such as mapping relationship) with the second indication information, then the first terminal device can determine K2 based on the second indication information. In this way, compared with the next example, the second indication information has more constraints and lower signaling flexibility.

[0270] Optionally, the first terminal device can derive K2 according to the first RS and the second indication information. For example, in the data used to train the AI model, the AI model output result corresponding to the received second indication information taking value X and the first RS feature are both corresponding to K2 ports. In detail, assuming that the input and output of the AI model in the training data are denoted as a and b respectively, a sample is a pair of a and b, denoted as (a, b). If b in each (a, b) corresponding to the second indication information taking value X is corresponding to K2, at least part of the features of a (such as the number of ports, and / or RS pattern, and / or RS time domain density, and / or RS frequency domain density, etc.), and the first RS is the same, then the first terminal device can determine K2 according to the first RS and the received second indication information taking value X. In actual implementation, the signaling indication in the configuration corresponding to the training data does not have to be the same as the second indication information. As long as the value of the signaling indication in the configuration corresponding to the training data can have a corresponding relationship (such as a mapping relationship) with the second indication information, the first terminal device can determine K2 based on the second indication information. In this way, compared with the previous example, the second indication information has less constraints and higher signaling flexibility.

[0271] Optionally, the CQI information can be directly measured based on the first RS (for example, not based on the AI model output result), or the CQI information can be directly measured based on the first RS and then increased by an adjustment value, which can be determined by the first terminal device or determined according to network indication information.

[0272] Optionally, the CQI information can be directly obtained based on the AI model output result.

[0273] Optionally, the RI information can be directly measured based on the first RS (for example, not based on the AI model output result), or the RI information can be directly measured based on the first RS and then increased by an adjustment value, which can be determined by the first terminal device or determined according to network indication information.

[0274] Optionally, the RI information can be directly obtained based on the AI model output result.

[0275] In this way, compared with other alternatives, the signaling overhead is smaller.

[0276] Alt.1A: The UE demodulates the data channel (such as PDSCH) or control channel (such as PDCCH) according to the first RS and / or the second indication information. Alternatively, the UE obtains the channel estimation result according to the first RS and / or the second indication information, and then demodulates the data channel (such as PDSCH) or control channel (such as PDCCH) using the channel estimation result.

[0277] In Alt.1A, the first RS is a demodulation reference signal (e.g., DMRS).

[0278] An example is, the input and output of the AI model in the training data are denoted as a and b respectively, and a sample is a pair of a and b, denoted as (a, b). If the training data set contains part of the data, the part of the data corresponds to the second indication information taking value X, and at least part of the features (e.g., the number of ports, and / or RS pattern, and / or RS time domain density, and / or RS frequency domain density, etc.) of a in (a, b) corresponding to the second indication information taking value X are the same as the first RS. Then the first terminal device can determine which AI model to use according to the received second indication information taking value X (optionally, in addition, the first RS can be considered), and use this AI model and the first RS to demodulate data or demodulate control information. In actual implementation, the signaling indication in the configuration corresponding to the training data does not necessarily have to be the same as the second indication information, as long as the value of the signaling indication in the configuration corresponding to the training data can have a corresponding relationship (e.g., mapping relationship) with the second indication information, then the first terminal device can determine which AI model to use according to the second indication information.

[0279] Alt.2: The first terminal device receives third indication information sent by the first network device, and the first terminal device determines K2 based on the third indication information. The UE reports CSI information corresponding to K2 (K2 is a positive integer) ports according to the first RS and / or the second indication information. Wherein the first RS has K1 ports, K1 < K2. Wherein the CSI information can contain PMI information, or can contain channel matrix information, or can include channel eigenvector information. In addition, the CSI information can also include CQI, and / or RI, etc. information.

[0280] An example is that the third indication information directly indicates the value of K2.

[0281] An example is that the input and output of the AI model in the training data are denoted as a and b respectively, and a sample is a pair of a and b, denoted as (a, b). If the training data set contains part of the data, the part of the data corresponds to the second indication information taking value X, and at least part of the features of a in (a, b) corresponding to the second indication information taking value X (for example, one or more of the number of ports, RS pattern, RS time domain density, RS frequency domain density, etc.) are the same as the first RS. Then the first terminal device determines which AI model to use according to receiving the second indication information taking value X (optionally, in addition, the first RS can also be considered), and uses the AI model and the first RS to demodulate data or demodulate control information. In actual implementation, the signaling indication in the configuration corresponding to the training data does not have to be the same as the second indication information, as long as the value of the signaling indication in the configuration corresponding to the training data can have a corresponding relationship (for example, a mapping relationship) with the second indication information, then the first terminal device can determine which AI model to use according to the second indication information. In this way, the signaling flexibility is better.

[0282] Optionally, the CQI information can be directly measured based on the first RS (for example, not based on the AI model output result), or the CQI information can be directly measured based on the first RS and then an adjustment value is added, which can be determined by the first terminal device or determined according to network indication information.

[0283] Optionally, the CQI information can be directly obtained from the AI model output result.

[0284] Optionally, the RI information can be directly measured based on the first RS (for example, not based on the AI model output result), or the RI information can be directly measured based on the first RS and then an adjustment value is added, which can be determined by the first terminal device or determined according to network indication information.

[0285] Optionally, the RI information can be directly obtained from the AI model output result.

[0286] Alt.3: The first terminal device receives third indication information sent by the first network device, and the first terminal device determines K2 based on the third indication information. The UE reports CSI information corresponding to K2 (K2 is a positive integer) ports according to the first RS. Wherein the first RS has K1 ports, K1 < K2. Wherein the CSI information can contain PMI information, or can contain channel matrix information, or can include channel eigenvector information. In addition, the CSI information can also include CQI, and / or RI, etc. information. In this way, compared with Alt2, the second indication information is not needed, thereby reducing the signaling overhead, at the cost of potentially constraining the implementation of the network / terminal.

[0287] An example is that the third indication information directly indicates the value of K2.

[0288] An example is that the input and output of the AI model in the training data are denoted as a and b respectively, and a sample is a pair of a and b, denoted as (a, b). If the training data set contains part of the data, at least part of the features of a in the part of the data (a, b) (such as one or more of the number of ports, RS pattern, RS time domain density, RS frequency domain density, etc.) are the same as the first RS, and the port of b is K2. Then the first terminal device determines which AI model to use according to the received first RS and second indication information, uses this AI model and the first RS to determine the CSI information.

[0289] Optionally, the CQI information can be directly measured based on the first RS (for example, not based on the output result of the AI model), or the CQI information can be directly measured based on the first RS and then increased by an adjustment value, which can be determined by the first terminal device or determined according to the network indication information.

[0290] Optionally, the CQI information can be directly obtained from the output result of the AI model.

[0291] Optionally, the RI information can be directly measured based on the first RS (for example, not based on the output result of the AI model), or the RI information can be directly measured based on the first RS and then increased by an adjustment value, which can be determined by the first terminal device or determined according to the network indication information.

[0292] Optionally, the RI information can be directly obtained from the output result of the AI model.

[0293] Alt.4: The first terminal device receives fourth indication information sent by the first network device, and the fourth indication information indicates the second RS (or referred to as the second RS resource). The UE reports the CSI information corresponding to the K2 (K2 is a positive integer) port according to one or more of the first RS, the second indication information and the fourth indication information (for example, according to the three). Wherein the first RS has K1 ports, the second RS has K2 ports, and K1 < K2. Wherein the CSI information can include PMI information, or can include channel matrix information, or can include channel eigenvector information. In addition, the CSI information can also include CQI, and / or RI, etc.

[0294] In this way, the configuration information or indication information of the second RS can contain more content, so that the signaling indication is more flexible.

[0295] One example is that the second RS resource does not actually transmit reference signals, but only provides RS configuration information, which can be considered as a "fake" RS. The first terminal device determines the value of K2 according to the second RS.

[0296] One example is that the first terminal does not need to measure the second RS resource. At this time, the second RS only provides RS configuration information, which can be considered as a "fake" RS. The first terminal device determines the value of K2 according to the second RS.

[0297] One example is that the input and output of the AI model in the training data are respectively denoted as a and b, and a sample is a pair of a and b, denoted as (a, b). If the training data set contains part of the data, the part of the data corresponds to the value X of the second indication information, and at least part of the features (such as the number of ports, and / or RS pattern, and / or RS time domain density, and / or RS frequency domain density, etc.) of a in (a, b) corresponding to the value X of the second indication information are the same as the first RS, and at least part of the features (such as the number of ports, and / or RS pattern, and / or RS time domain density, and / or RS frequency domain density, etc.) in b are the same as the second RS. Then the first terminal device can determine which AI model to use according to the received second indication information taking value X (optionally, in addition to considering the first RS and / or the second RS), and then determine the CQI information using the AI model and the first RS. In actual implementation, the signaling indication in the configuration corresponding to the training data does not necessarily have to be the same as the second indication information. As long as the value of the signaling indication in the configuration corresponding to the training data can have a corresponding relationship (such as a mapping relationship) with the second indication information, the first terminal device can determine which AI model to use according to the second indication information. In this way, the signaling flexibility is better.

[0298] Optionally, the CQI information can be directly measured based on the first RS (for example, not based on the output result of the AI model), or the CQI information can be directly measured based on the first RS and then increased by an adjustment value, which can be determined by the first terminal device or according to network indication information.

[0299] Optionally, the CQI information can be directly obtained from the output result of the AI model.

[0300] Optionally, the RI information can be directly measured based on the first RS (for example, not based on the output result of the AI model), or the RI information can be directly measured based on the first RS and then increased by an adjustment value, which can be determined by the first terminal device or according to network indication information.

[0301] Optionally, the RI information can be directly obtained from the AI model output.

[0302] Alt.5: The first terminal device receives fourth indication information sent by the first network device, the fourth indication information indicating a second RS (or referred to as a second RS resource). The UE reports CSI information corresponding to K2 (K2 is a positive integer) ports according to the first RS and the fourth indication information. The first RS has K1 ports, the second RS has K2 ports, and K1 < K2. The CSI information can include PMI information, or can include channel matrix information, or can include channel eigenvector information. In addition, the CSI information can also include CQI, and / or RI, etc.

[0303] In this way, compared with Alt.4, the second indication information is not needed, and the signaling overhead can be reduced. Compared with Alt.3, the configuration information or indication information of the second RS contains more content, so the signaling indication is more flexible.

[0304] One example is that the second RS resource does not actually send a reference signal, but only provides an RS configuration information, which can be considered as a "fake" RS. The first terminal device determines the value of K2 according to the second RS.

[0305] One example is that the first terminal does not need to measure the second RS resource. At this time, the second RS only provides an RS configuration information, which can be considered as a "fake" RS. The first terminal device determines the value of K2 according to the second RS.

[0306] One example is that the input and output of the AI model in the training data are respectively denoted as a and b, and a sample is a pair of a and b, denoted as (a, b). If the training data set contains part of the data, at least part of the features (such as one or more of the port number, RS pattern, RS time domain density, RS frequency domain density, etc.) in a of the part of the data (a, b) are the same as the first RS, and at least part of the features (such as one or more of the port number, RS pattern, RS time domain density, RS frequency domain density, etc.) in b are the same as the second RS. Then the first terminal device can determine which AI model to use according to the received first RS and second RS, and determine the CQI information using the AI model and the first RS.

[0307] Optionally, the CQI information can be directly obtained based on the first RS measurement (for example, not based on the AI model output result), or the CQI information can be directly obtained based on the first RS measurement and an adjustment value is added. The adjustment value can be determined by the first terminal device, or determined according to the network indication information.

[0308] Optionally, the CQI information can be obtained directly from the AI model output result.

[0309] Optionally, the RI information can be obtained directly based on the first RS measurement (e.g., not based on the AI model output result), or the RI information can be obtained directly based on the first RS measurement and increased by an adjustment value, which can be determined by the first terminal device or according to network indication information.

[0310] Optionally, the RI information can be obtained directly from the AI model output result.

[0311] Alt.6: Similar to Alt.4, the difference mainly comes from the indication of the relationship between the second RS and the first RS.

[0312] Based on Alt.4, the first terminal device receives fifth indication information sent by the first network device, and the fifth indication information indicates that the first RS and the second RS are associated.

[0313] The relationship between the fourth indication information and the fifth indication information can have the following options:

[0314] One embodiment is that the fourth indication information and the fifth indication information are the same information. In this way, the signaling overhead can be compressed.

[0315] One embodiment is that the fourth indication information is contained in the fifth indication information. In this way, the signaling overhead can be compressed.

[0316] Another embodiment is that the fourth indication information and the fifth indication information are transmitted in the same signaling. In this way, the signaling overhead is smaller than the following, and the flexibility is higher than the above scheme.

[0317] Another embodiment is that the fourth indication information and the fifth indication information are transmitted through different signaling. In this way, the signaling design flexibility is better.

[0318] Alt.7: Similar to Alt.5, the difference mainly comes from the indication of the relationship between the second RS and the first RS.

[0319] Based on Alt.5, the first terminal device receives fifth indication information sent by the first network device, and the fifth indication information indicates that the first RS and the second RS are associated.

[0320] The relationship between the fourth indication information and the fifth indication information can have the following options:

[0321] One embodiment is that the fourth indication information and the fifth indication information are the same information. In this way, the signaling overhead can be compressed.

[0322] One embodiment is that the fourth indication information is contained in the fifth indication information. In this way, the signaling overhead can be compressed.

[0323] Another embodiment is that the fourth indication information and the fifth indication information are transmitted in the same signaling. In this way, the signaling overhead is smaller than the following and the flexibility is higher than the above solution.

[0324] Another embodiment is that the fourth indication information and the fifth indication information are transmitted through different signaling. In this way, the signaling design flexibility is better.

[0325] In Alt. 6, Alt. 7, the indication method of the association relationship can have some options:

[0326] The indication of the corresponding relationship can have different implementation solutions, i.e., the fifth indication information can have different implementation methods (for the solution using RS set, it is assumed that the first RS belongs to the first RS resource set and the second RS belongs to the second RS resource set.):

[0327] Option (Option) 1: The signaling configuration of the first RS resource set contains the first field (first field), the signaling configuration of the second RS resource set contains the second field (second field), the value of the first field and the value of the second field are the same, indicating that the first RS resource set and the second RS resource set have an association relationship. Therefore, the first RS resource and the second RS resource also have an association relationship. In this way, compared with directly indicating the association relationship between resources, the signaling overhead can be reduced.

[0328] Option 2: The signaling configuration of the first RS resource set contains the third field (third field), the value of the third field indicates the second RS resource set, indicating that the first RS resource set and the second RS resource set have an association relationship. Therefore, the first RS resource and the second RS resource also have an association relationship. In this way, compared with directly indicating the association relationship between resources, the signaling overhead can be reduced.

[0329] Option 3: The signaling configuration of the second RS resource set contains a fourth field (fourth field), and the value of the fourth field indicates the first RS resource set, indicating that the first RS resource set and the second RS resource set have a correlation relationship. Therefore, the first RS resource and the second RS resource also have a correlation relationship. In this way, compared with directly indicating the correlation relationship between the resources, the signaling overhead can be reduced.

[0330] Option 4: The first RS resource set and the second RS resource set appear in the resource configuration signaling in pairs (for example, appear in one RS resource configuration signaling in pairs). In this way, compared with directly indicating the correlation relationship between the resources, the signaling overhead can be reduced.

[0331] Option 5: The first RS resource set and the second RS resource set are indicated in the same measurement configuration signaling or the same reporting configuration signaling. In this way, compared with directly indicating the correlation relationship between the resources, the signaling overhead can be reduced.

[0332] Option 6: The signaling configuration of the first RS resource contains a fifth field (fifth field), and the signaling configuration of the second RS resource contains a sixth field (sixth field). The value of the fifth field is the same as the value of the sixth field, indicating that the first RS resource and the second RS resource have a correlation relationship. In this way, compared with directly indicating the correlation relationship between the resource sets, flexibility can be increased, and the network can indicate various pairing relationships in a more fine-grained manner.

[0333] Option 7: The signaling configuration of the first RS resource contains a seventh field (seventh field), and the value of the seventh field indicates the second RS resource, indicating that the first RS resource and the second RS resource have a correlation relationship. In this way, compared with directly indicating the correlation relationship between the resource sets, flexibility can be increased, and the network can indicate various pairing relationships in a more fine-grained manner.

[0334] Option 8: The signaling configuration of the second RS resource contains an eighth field, and the value of the eighth field indicates the first RS resource, which means that the first RS resource and the second RS resource have a correlation relationship. In this way, compared with directly indicating the correlation relationship between the resource sets, flexibility can be increased, and the network can indicate various pairing relationships in a more fine-grained manner.

[0335] Option 9: The first RS resource and the second RS resource appear in the resource configuration signaling in pairs (for example, appear in one RS resource configuration signaling in pairs). In this way, compared with directly indicating the correlation relationship between the resource sets, flexibility can be increased.

[0336] Option 10: The first RS resource and the second RS resource are indicated in the same measurement configuration signaling or the same reporting configuration signaling. In this way, compared with directly indicating the correlation relationship between the resource sets, flexibility can be increased.

[0337] It should be additionally noted that the different options above can be combined for use. For example, one of Options 1-5 can be combined with one of Options 6-10. For another example, Options 2 and 3 can be combined. For another example, Options 8 and 9 can be combined. In this way, the combination scheme can achieve a better trade-off between signaling overhead and flexibility.

[0338] Alt.8: The first network device indicates the second RS resource, and indicates that part of the information in the second RS resource constitutes the first RS resource. In this way, the first RS resource and the second RS resource are implicitly indicated to have a correlation relationship. In this way, signaling overhead is reduced.

[0339] Optionally, the first indication information indicates the first RS resource and the second RS resource.

[0340] Optionally, the first terminal device receives sixth indication information sent by the network, the sixth indication information indicating the second RS resource. The first indication information indicates the first RS resource, i.e., the first RS resource uses part of ports in the second RS resource, and / or the first RS resource uses part of time domain resources in the second RS resource, and / or the first RS resource uses part of frequency domain resources in the second RS resource.

[0341] As an example, the second RS resource has K2 ports, and K1 (Ki < K2) ports in the K2 ports correspond to the first RS resource. For simplicity of description, it is assumed that K2 = 16 ports (port numbers are 0, 1, 2, 3, …, 15 respectively), and the ports (0, 4, 8, 12) in the second RS resource form the first RS resource.

[0342] Optionally, the first indication information includes a field, and a value of the field points to the second RS resource or a second RS resource set in which the second RS resource is located.

[0343] The UE reports CSI information corresponding to K2 (K2 is a positive integer) ports according to the first RS and the second indication information. The first RS has K1 ports, the second RS has K2 ports, and K1 < K2. The CSI information can include PMI information, or can include channel matrix information, or can include channel eigenvector information. In addition, the CSI information can also include CQI, and / or RI, etc.

[0344] In this way, the configuration information or the indication information of the second RS can contain more content, so that the signaling indication is more flexible, and the signaling overhead is also relatively small.

[0345] As an example, the part of the second RS resource other than the part corresponding to the first RS resource is not actually used for signal transmission. The first terminal device determines the value of K2 according to the second RS.

[0346] As an example, the first terminal does not need to measure the part of the second RS resource other than the first RS (for example, does not measure the ports other than the first RS, does not measure the time domain resources other than the first RS, and does not measure the frequency domain resources other than the first RS). The first terminal device determines the value of K2 according to the second RS.

[0347] An example is that the input and output of the AI model in the training data are denoted as a and b respectively, and a sample is a pair of a and b, denoted as (a, b). If the training data set contains part of the data, the part of the data corresponds to the second indication information taking value X, and at least part of the features (such as the number of ports, and / or RS pattern, and / or RS time domain density, and / or RS frequency domain density, etc.) of a in (a, b) corresponding to the second indication information taking value X are the same as the first RS, and at least part of the features (such as the number of ports, and / or RS pattern, and / or RS time domain density, and / or RS frequency domain density, etc.) in b are the same as the second RS. Then the first terminal device determines which AI model to use according to receiving the second indication information taking value X (optionally, in addition, the first RS and / or the second RS can also be considered), and determines the CQI information using the AI model and the first RS. In actual implementation, the signaling indication in the configuration corresponding to the training data does not have to be the same as the second indication information, as long as the value of the signaling indication in the configuration corresponding to the training data can have a corresponding relationship (such as a mapping relationship) with the second indication information, then the first terminal device can determine which AI model to use according to the second indication information. In this way, the signaling flexibility is better.

[0348] Optionally, the CQI information can be directly measured based on the first RS (for example, not based on the AI model output result), or the CQI information can be directly measured based on the first RS and then an adjustment value is added, which can be determined by the first terminal device or according to network indication information.

[0349] Optionally, the CQI information can be directly obtained based on the AI model output result.

[0350] Optionally, the RI information can be directly measured based on the first RS (for example, not based on the AI model output result), or the RI information can be directly measured based on the first RS and then an adjustment value is added, which can be determined by the first terminal device or according to network indication information.

[0351] Optionally, the RI information can be directly obtained based on the AI model output result.

[0352] Alt. 9: Similar to Alt. 8, but without using the second indication information.

[0353] The first network device indicates the second RS resource, and indicates that part of the information in the second RS resource constitutes the first RS resource. In this way, the first RS resource and the second RS resource are implicitly indicated to have a correlation relationship. In this way, the signaling overhead is reduced.

[0354] Optionally, the first indication information indicates the second RS resource and the second RS resource.

[0355] Optionally, the first terminal device receives sixth indication information sent by the network, and the sixth indication information indicates the second RS resource. The first indication information indicates that the first RS resource uses part of ports in the second RS resource, and / or the first RS resource uses part of time domain resources in the second RS resource, and / or the first RS resource uses part of frequency domain resources in the second RS resource.

[0356] As an example, the second RS resource has K2 ports, and K1 (K1 < K2) ports in the K2 ports correspond to the first RS resource. For simplicity of description, it is assumed that K2 = 16 ports (port numbers are 0, 1, 2, 3, …, 15), and the ports (0, 4, 8, 12) in the second RS resource form the first RS resource.

[0357] Optionally, the first indication information includes a field, and a value of the field points to the second RS resource or a second RS resource set in which the second RS resource is located.

[0358] The UE reports CSI information corresponding to K2 (K2 is a positive integer) ports on the first RS. The first RS has K1 ports, the second RS has K2 ports, and K1 < K2. The CSI information can include PMI information, or can include channel matrix information, or can include channel eigenvector information. In addition, the CSI information can also include CQI, and / or RI, and the like.

[0359] In this way, the configuration information or the indication information of the second RS can contain more content, so that the signaling indication is more flexible, and the signaling overhead is relatively small. Compared with A1t.8, the second indication information is not needed, and the signaling overhead can be reduced.

[0360] An example is that a part of the second RS resource other than the part corresponding to the first RS resource is not actually transmitted. The first terminal device determines the value of K2 according to the second RS.

[0361] One example is, the first terminal does not need to measure the part of the second RS resource except the first RS (e.g. does not measure the port except the first RS, does not measure the time domain resource except the first RS, does not measure the frequency domain resource except the first RS). The first terminal device determines the value of K2 according to the second RS.

[0362] One example is, the input and output of the AI model in the training data are respectively denoted as a and b, and a sample is a pair of a and b, denoted as (a, b). If the training data set contains part of the data, at least part of the features in a (such as the number of ports, and / or RS pattern, and / or RS time domain density, and / or RS frequency domain density, etc.) in the part of the data (a, b) are the same as the first RS, and at least part of the features (such as the number of ports, and / or RS pattern, and / or RS time domain density, and / or RS frequency domain density, etc.) in b are the same as the second RS. Then the first terminal device can determine which AI model to use according to the received first RS and second RS, and use this AI model and the first RS to determine the CQI information.

[0363] Optionally, the CQI information can be directly measured based on the first RS (for example, not based on the output result of the AI model), or the CQI information can be directly measured based on the first RS and then increased by an adjustment value, which can be determined by the first terminal device or determined according to the network indication information.

[0364] Optionally, the CQI information can be directly obtained from the output result of the AI model.

[0365] Optionally, the RI information can be directly measured based on the first RS (for example, not based on the output result of the AI model), or the RI information can be directly measured based on the first RS and then increased by an adjustment value, which can be determined by the first terminal device or determined according to the network indication information.

[0366] Optionally, the RI information can be directly obtained from the output result of the AI model.

[0367] III. CSI reporting

[0368] This part is for CSI reporting. For PDSCH / PDCCH demodulation, this part is not needed.

[0369] Optionally, the first network device further sends one or more of the following information to the first terminal device through signaling:

[0370] 1. Reporting type related information.

[0371] Some possible options include: one or more of the following: reporting channel matrix, reporting PMI, reporting channel eigenvector, etc.

[0372] 2. Reporting format related information.

[0373] 3. Reporting data quantization method related information.

[0374] 4. Information related to reporting Rank (RI) restriction.

[0375] Some possible options include: one or more of the following: the reported RI cannot exceed which range, the reported RI is less than or equal to which value, etc.

[0376] 5. Information indicating reporting error related.

[0377] 6. Information indicating reporting environment related.

[0378] Some possible options include: one or more of the following: SINR, RSRP, etc.

[0379] 7. Time / occasion information corresponding to the reported information,

[0380] For example, to give which occasions in the future correspond to the reported information; and / or the reported information within a future window; and / or how many occasions of the reported information in the future; and / or the interval information between these future occasions

[0381] The above information can be transmitted through the above-mentioned indication information (such as the first indication information, and / or the second indication information, etc.), or can be transmitted through other indication information.

[0382] The first terminal device performs channel measurement according to the first RS resource, and reports a first reporting result to the network through a first reporting signaling.

[0383] Optionally, the first reporting signaling can also carry corresponding information of one or more types for the first reporting result:

[0384] 1. Time information. In this way, the time of the data can be determined.

[0385] For example, the time information can be timestamp information, where the timestamp information can be represented by a value calculated in time units (such as milliseconds, microseconds, …); or for example, the timestamp information can be represented by SFN value, slot number, symbol number.

[0386] For example, the time information can indicate which occasions in the future the reporting result corresponds to. Some examples:

[0387] For one reported result, one information is carried to indicate which future time it corresponds to.

[0388] For multiple reported results, one information is carried to indicate which future time the first reported result corresponds to, and the future times corresponding to other reported results are determined according to fixed intervals.

[0389] For multiple reported results, which future time each reported result corresponds to is determined according to its position, i.e. the first position corresponds to one future time, the second position corresponds to another future time, and so on.

[0390] 2. Information related to cell.

[0391] 3. Position information. In this way, the effectiveness of the AI model can be determined.

[0392] 4. Speed-related information. In this way, the effectiveness of the AI model can be determined. For example, the speed of the first terminal device corresponding to the reporting sample at that time.

[0393] 5. Information related to the reliability of the reported result. In this way, the effectiveness of the AI model can be determined. For example, the confidence of the reported result.

[0394] 6. Information related to the estimated error of the reported result. In this way, the effectiveness of the AI model can be determined. For example, the variance information of the reported result.

[0395] 7. Information related to the wireless environment. In this way, the effectiveness of the AI model can be determined. For example, the characteristics of the current channel, and / or the type of the current channel, and / or SINR, and / or RSRP.

[0396] Optionally, the first reporting signaling can be transmitted through PUCCH, and / or through PUSCH, and / or through MAC CE signaling.

[0397] Optionally, the first reporting signaling can be transmitted through UCI, and / or through MAC CE signaling.

[0398] Four, fallback mechanism

[0399] Optionally, in the above-mentioned scheme involving the second RS, there can be other variations. For example, the first terminal device can also measure the second RS, and a specific example is given below.

[0400] As an example, the first terminal device receives the seventh indication information sent by the first network device, the seventh indication information indicates that the first terminal device reports (or measures and reports, or measures, or demodulates data / control information) based on the second RS, or the seventh indication information indicates that the first terminal device can report (or measures and reports, or measures) based on the second RS. For example, at this time, the first terminal device can report CQI information based on the second RS. For example, at this time, the first terminal device can demodulate PDSCH based on the second RS. For example, at this time, the first terminal device can demodulate PDCCH based on the second RS.

[0401] Optionally, the seventh indication information can be transmitted through DCI signaling, or MAC CE signaling, or RRC signaling, or system message, or broadcast message.

[0402] Optionally, the relationship between the seventh indication information and the previously mentioned indication information (the previously mentioned indication information includes the first indication information, the second indication information, the third indication information, the fourth indication information, the fifth indication information, the sixth indication information. Here, the Yth indication information represents any one of them) can have different options:

[0403] One embodiment is that the seventh indication information and the Yth indication information are the same information. In this way, the signaling overhead can be compressed.

[0404] One embodiment is that the seventh indication information is contained in the Yth indication information. In this way, the signaling overhead can be compressed.

[0405] Another embodiment is that the seventh indication information and the Yth indication information are transmitted in the same signaling. In this way, the signaling overhead is smaller than the following, and the flexibility is higher than the above scheme.

[0406] Another embodiment is that the seventh indication information and the Yth indication information are transmitted through different signaling. In this way, the signaling design flexibility is better.

[0407] At this time, for CQI information reporting, there can be different options:

[0408] Option 1: When receiving the seventh indication information, the first terminal device reports the second reporting result through the first reporting signaling, and the second reporting result is obtained based on the second RS. In this way, the UE implementation is simple.

[0409] Option 2: When receiving the seventh indication information, the first terminal device reports the second reporting result through the first reporting signaling, and the first reporting signaling also carries information indicating whether the second reporting result is obtained based on the second RS or the first RS. In this way, the UE implementation has better flexibility.

[0410] Option 3: When receiving the seventh indication information, the first terminal device reports the first reporting result and the second reporting result through the first reporting signaling, wherein the first reporting result is obtained based on the first RS, and the second reporting result is obtained based on the second RS. In this way, more information is reported, which facilitates the network side to better judge the performance and assist the network to make better configuration optimization.

[0411] Different options can be used in combination,

[0412] For example, in multiple reporting, some use option 2, and some use option 3; or some use option 1, and some use option 3; or some use option 1, and some use option 2, and some use option 3. Because the period and transmission time of the first RS and the second RS may be different, sometimes only the first RS can be used, sometimes only the second RS can be used, and sometimes both the first RS and the second RS can be used.

[0413] For example, the first network device indicates which option the first terminal device uses through the eighth indication information.

[0414] As an example, the first value of the eighth indication information indicates that the first terminal device uses option 1, and the second value of the eighth indication information indicates that the first terminal device uses option 2.

[0415] As an example, the first value of the eighth indication information indicates that the first terminal device uses option 1, and the second value of the eighth indication information indicates that the first terminal device uses option 3.

[0416] As an example, the first value of the eighth indication information indicates that the first terminal device uses option 2, and the second value of the eighth indication information indicates that the first terminal device uses option 3.

[0417] As an example, the first value of the eighth indication information indicates that the first terminal device uses option 1, and the second value of the eighth indication information indicates that the first terminal device uses option 2.

[0418] As an example, the first value of the eighth indication information indicates that the first terminal device uses option 1, the second value of the eighth indication information indicates that the first terminal device uses option 2, and the third value of the eighth indication information indicates that the first terminal device uses option 3.

[0419] Five, UE capability reporting

[0420] Optionally, before the above steps, the first terminal device reports a first terminal capability to the first network device, the first terminal capability is based on the first RS resource to report CQI information of a corresponding K2 port (K2>K1), wherein the first RS resource has K1 ports, K1 is a positive integer greater than 1, K2 is a positive integer greater than 1, or the first terminal capability is based on the ability of the first RS resource to perform data demodulation, such as PDSCH demodulation (or the ability to perform control information demodulation, such as PDCCH demodulation). For example, when demodulating, an AI model is used, or an AI (or machine learning) capability is used.

[0421] Optionally, the first terminal capability is reported through UE capability signaling. In this way, by reporting through UE capability signaling, it can be avoided to repeatedly report UE capabilities in different cells. Optionally, the first terminal capability is transmitted through RRC signaling or MAC CE.

[0422] Optionally, the first terminal capability is reported per band (i.e., different bands can independently report corresponding capabilities). In this way, independent reporting of different bands can allow the terminal to have greater freedom, for example, the terminal can support this function on a certain band or bands, and not support this function on other bands, thereby allowing more terminals to support this new function.

[0423] Optionally, the first terminal capability is reported per band combination. In this way, independent reporting of different band combinations can allow the terminal to have greater freedom, for example, the terminal can not support this function under a certain band combination, but support this function under another band combination, thereby allowing more terminals to support this new function.

[0424] Optionally, the first terminal capability is reported per band per band combination. In this way, independent reporting of different bands in different band combinations can allow the terminal to have greater freedom, for example, the terminal can not support this function under a certain CA, but support this function under another CA combination, thereby allowing more terminals to support this new function.

[0425] Optionally, the first terminal capability is reported per carrier per band per band combination (i.e. different carriers in a band in different band combinations can be reported independently, per CC per band per band combination, or FSPC). In this way, different band combinations are reported independently, and different carriers on one band can also be reported independently, which can allow the terminal to have greater freedom, so that more terminals can support this new function.

[0426] Optionally, the first terminal capability is reported per frequency range (i.e. different FRs can be reported independently, per FR, i.e. FR1 and FR2 are reported independently). In this way, different FRs are reported independently, which can allow the terminal to have greater freedom, for example, the terminal does not support this function in low frequency (FR1), but supports this function in FR2 (high frequency), so that more terminals can support this new function.

[0427] Optionally, the first terminal capability is reported per UE (i.e. if the UE reports this capability, it can support this capability on each band). In this way, the signaling overhead of terminal capability reporting is reduced.

[0428] Optionally, before the above steps, the first terminal device reports a second terminal capability to the first network device, the second terminal capability is based on the first RS resource to report CQI information of corresponding K2 ports (K2>K1), wherein the first RS resource has K1 ports, K1 is a positive integer greater than 1, K2 is a positive integer greater than 1, or the second terminal capability is based on the ability of the first RS resource to demodulate data, such as PDSCH demodulation (or the ability to demodulate control information, such as PDCCH demodulation). For example, when demodulating, an AI model is used, or an AI (or machine learning) capability is used.

[0429] Optionally, the second terminal capability is reported through terminal assistance information (UE assistance information). In this way, the flexibility is better, and the UE can indicate its own capability according to the current situation (such as computing resources, power consumption, and power). Optionally, the second terminal capability is transmitted through RRC signaling or MAC CE.

[0430] Optionally, the second terminal capability is reported for a serving cell, for example:

[0431] (1) Optionally, the second terminal capability reporting does not carry the serving cell indication information (i.e., does not indicate which specific serving cell or serving cells). In this way, the overhead is saved.

[0432] Alt.1: The second terminal capability is applicable to the serving cell currently transmitting the second terminal capability signaling

[0433] Alt.2: The second terminal capability is applicable to all serving cells of the UE

[0434] (2) Optionally, the second terminal capability reporting carries the serving cell indication information (e.g., can indicate one serving cell, or indicate multiple serving cells). At this time, the second terminal capability is applicable to the indicated serving cell. In this way, the flexibility is better, and which serving cells have these capabilities can be indicated according to the current situation (e.g., computing resources, power consumption, power).

[0435] The above network indication or configuration needs to be able to match the capability reported by the UE. For example, after the network receives the first terminal capability and / or the second terminal capability reported by the UE, the network can indicate to the UE to perform measurement and / or reporting according to the first RS resource, or to perform demodulation of data or control information.

[0436] FIG. 6 is a schematic block diagram of a first communication device 600 according to an embodiment of the present application. The terminal device 600 can include:

[0437] The transceiver unit 610 is configured to receive first indication information, the first indication information indicating a first RS resource;

[0438] The processing unit 620 is configured to report CSI or perform demodulation of data and / or control signaling based on the first RS resource.

[0439] In an implementation, the first RS resource is used for channel measurement.

[0440] In an implementation, the transceiver unit is further configured to receive second indication information; and the processing unit 620 is further configured to report CSI or perform demodulation of data and / or control signaling based on the first RS resource, including: the first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource and / or the second indication information.

[0441] In an implementation, the second indication information indicates one or more of the following: a first AI model, an identifier of the first AI model, a number of the first AI model, an indication identifier, an indication number, an association identifier, a consistency identifier.

[0442] In an embodiment, the first communication device reports CSI, the CSI corresponding to the second number of ports, or the first communication device demodulates data and / or control signaling, the data and / or control signaling conveying information corresponding to the second number of ports; wherein the first RS resource has a first number of ports, the first number being less than the second number.

[0443] In an embodiment, the transceiver 610 is further configured to receive third indication information, the third indication information indicating a value of the second number.

[0444] In an embodiment, the transceiver 610 is further configured to receive fourth indication information, the fourth indication information indicating a second RS resource, the second RS resource being used to provide RS configuration information.

[0445] In an embodiment, the transceiver 610 is further configured to receive fifth indication information, the fifth indication information indicating a relationship between the first RS resource and the second RS resource.

[0446] In an embodiment, the transceiver 610 is further configured to receive sixth indication information, the sixth indication information indicating the second RS resource, and the first RS resource corresponding to part of the second RS resource.

[0447] In an embodiment, the first indication information indicates the first RS resource and the second RS resource, the first RS resource being used for channel measurement, and the second RS resource being used to provide RS configuration information.

[0448] In an embodiment, the transceiver 610 is further configured to receive reporting indication signaling, the reporting indication signaling indicating one or more of the following information: reporting type related information, reporting format related information, reporting data quantization method related information, information related to reporting Rank (RI) restriction, reporting error related information, reporting environment related information, time information and / or time point information corresponding to the reporting information.

[0449] In an embodiment, the transceiver 610 is further configured to send first reporting signaling, the first reporting signaling including a first reporting result, the first reporting result being based on the first RS resource.

[0450] In an embodiment, the first reporting signaling further includes one or more of the following information related to the first reporting result: time information, cell related information, location information, speed related information, reliability related information, error related information, wireless environment related information.

[0451] In an embodiment, the transceiver 610 is further configured to receive seventh indication information, the seventh indication information indicating that the first communication device is to perform one or more of measurement, reporting, or demodulation based on the second RS resource.

[0452] In an embodiment, the transceiver 610 is further configured to receive eighth indication information, the eighth indication information indicating a reporting manner.

[0453] In an embodiment, the reporting manner comprises one or more of the following:

[0454] reporting the second reporting result via a second reporting signaling, wherein the second reporting result is obtained based on the second RS resource;

[0455] reporting the second reporting result via a second reporting signaling, and the second reporting signaling further carries information indicating that the second reporting result is obtained based on the second RS resource or the first RS resource;

[0456] reporting the first reporting result and the second reporting result via a second reporting signaling, wherein the first reporting result is obtained based on the first RS resource, and the second reporting result is obtained based on the second RS resource.

[0457] In an embodiment, the CSI comprises one or more of the following: precoding matrix indication (PMI) information, channel matrix information, channel eigenvector information, channel quality indication (CQI) information, rank indication (RI) information.

[0458] In an embodiment, the CQI information and / or the RI information is obtained in the following one or more manners:

[0459] based on measurement of the first RS resource;

[0460] obtained after measurement of the first RS resource and after adding an adjustment value;

[0461] determined according to network indication information;

[0462] obtained based on a first AI model output result.

[0463] In an embodiment, the processing unit 610 is further configured to report first capability information; wherein the first capability information comprises one or more of the following:

[0464] the first communication device has a capability of reporting CSI corresponding to a second number of ports based on RS resources of a first number of ports;

[0465] the first communication device has a capability of demodulating data and / or control signaling corresponding to a second number of ports based on RS resources of a first number of ports.

[0466] In an implementation, the first capability information is reported according to one or more of the following: frequency band, frequency band combination, each frequency band in the frequency band combination, each carrier of each frequency band in the frequency band combination, frequency band range, terminal.

[0467] In an implementation, the processing unit 610 is further configured to report second capability information; wherein the second capability information comprises one or more of the following:

[0468] The first communication device reports the capability of CSI corresponding to the second number of ports based on the RS resource of the first number of ports.

[0469] The first communication device reports the capability of data and / or control signaling demodulation corresponding to the second number of ports based on the RS resource of the first number of ports.

[0470] In an implementation, the second capability information is carried by terminal assistance information.

[0471] In an implementation, the second capability information is reported for a serving cell.

[0472] In an implementation, when the first communication device reports the second capability information, the second capability information is applicable to the serving cell currently transmitting the second capability information or all serving cells of the first communication device.

[0473] In an implementation, when the first communication device reports the second capability information, the second capability information is applicable to the serving cell indicated by the serving cell indication information.

[0474] In an implementation, the second number is determined based on one or more of the following:

[0475] First indication information;

[0476] First RS resource;

[0477] Second indication information;

[0478] First indication information and second indication information:

[0479] First RS resource and second indication information:

[0480] Third indication information indicating the value of the second number;

[0481] Fourth indication information indicating the second RS resource;

[0482] Second RS resource;

[0483] First RS resource and second RS resource.

[0484] The first communication device 600 of the embodiments of the present application can realize the corresponding functions of the first communication device in the foregoing method embodiments. The corresponding processes, functions, implementation manners, and beneficial effects of each module (sub-module, unit, or component, etc.) in the first communication device 600 can be referred to the corresponding description in the foregoing method embodiments, which will not be described here. It should be noted that the functions described with respect to each module (sub-module, unit, or component, etc.) in the first communication device 600 of the embodiments of the present application can be realized by different modules (sub-modules, units, or components, etc.), or by the same module (sub-module, unit, or component, etc.).

[0485] FIG. 7 is a schematic block diagram of a second communication device 700 according to an embodiment of the present application. The second communication device 700 can include:

[0486] The transceiver 710 is configured to transmit first indication information, the first indication information indicating a first RS resource, so that the first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource.

[0487] In an implementation manner, the first RS resource is used for channel measurement.

[0488] In an implementation manner, the transceiver 710 is further configured to transmit second indication information, so that the first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource and / or the second indication information.

[0489] In an implementation manner, the second indication information indicates one or more of the following: a first AI model, an identifier of the first AI model, a number of the first AI model, an indication identifier, an indication number, an association identifier, and a consistency identifier.

[0490] In an implementation manner, the first communication device reports CSI, the CSI corresponding to a second number of ports, or the first communication device demodulates data and / or control signaling, the data and / or control signaling being transmitted corresponding to the second number of ports; wherein the first RS resource has a first number of ports, and the first number is less than the second number.

[0491] In an implementation manner, the transceiver 710 is further configured to transmit third indication information, the third indication information indicating a value of the second number.

[0492] In an implementation manner, the transceiver 710 is further configured to transmit fourth indication information, the fourth indication information indicating a second RS resource, the second RS resource being used to provide RS configuration information.

[0493] In an embodiment, the transceiver 710 is further configured to send fifth indication information, the fifth indication information indicating a relationship between the first RS resource and the second RS resource.

[0494] In an embodiment, the transceiver 710 is further configured to send sixth indication information, the sixth indication information indicating the second RS resource, and the first RS resource corresponding to part of the second RS resource.

[0495] In an embodiment, the first indication information indicates the first RS resource and the second RS resource, the first RS resource being used for channel measurement, and the second RS resource being used for providing RS configuration information.

[0496] In an embodiment, the transceiver 710 is further configured to send reporting indication signaling, the reporting indication signaling indicating one or more of the following information: reporting type related information, reporting format related information, reporting data quantization method related information, information related to reporting Rank (RI) restriction, reporting error related information, reporting environment related information, time information and / or time point information corresponding to the reporting information.

[0497] In an embodiment, the transceiver 710 is further configured to send first reporting signaling, the first reporting signaling including a first reporting result, the first reporting result being based on the first RS resource.

[0498] In an embodiment, the first reporting signaling further includes one or more of the following information related to the first reporting result: time information, cell related information, location information, speed related information, reliability related information, error related information, and wireless environment related information.

[0499] In an embodiment, the transceiver 710 is further configured to send seventh indication information, the seventh indication information indicating that the first communication device performs one or more of the following operations based on the second RS resource: measurement, reporting, and demodulation.

[0500] In an embodiment, the transceiver 710 is further configured to send eighth indication information, the eighth indication information indicating a reporting manner.

[0501] In an embodiment, the reporting manner includes one or more of the following:

[0502] reporting a second reporting result through second reporting signaling, the second reporting result being based on the second RS resource;

[0503] reporting a second reporting result through second reporting signaling, and the second reporting signaling further carrying information indicating that the second reporting result is based on the second RS resource or the first RS resource;

[0504] report the first reporting result and the second reporting result through the second reporting signaling, wherein the first reporting result is obtained based on the first RS resource, and the second reporting result is obtained based on the second RS resource.

[0505] In an embodiment, the CSI comprises one or more of the following: precoding matrix indication (PMI) information, channel matrix information, channel eigenvector information, channel quality indication (CQI) information, rank indication (RI) information.

[0506] In an embodiment, the CQI information and / or the RI information is obtained in one or more of the following ways:

[0507] based on the first RS resource;

[0508] after being obtained based on the first RS resource and after being increased by an adjustment value;

[0509] determined according to network indication information;

[0510] based on a first AI model output result.

[0511] In an embodiment, the transceiver 710 is further configured to receive first capability information reported by the first communication device; wherein the first capability information comprises one or more of the following:

[0512] the first communication device reports a capability of reporting CSI corresponding to a second number of ports based on RS resources of a first number of ports;

[0513] the first communication device reports a capability of performing data and / or control signaling demodulation corresponding to a second number of ports based on RS resources of a first number of ports.

[0514] In an embodiment, the first capability information is independently reported according to one or more of the following: frequency band, frequency band combination, each frequency band in the frequency band combination, each carrier of each frequency band in the frequency band combination, frequency band range, terminal.

[0515] In an embodiment, the transceiver 710 is further configured to receive second capability information reported by the first communication device; wherein the second capability information comprises one or more of the following:

[0516] the first communication device reports a capability of reporting CSI corresponding to a second number of ports based on RS resources of a first number of ports;

[0517] the first communication device reports a capability of performing data and / or control signaling demodulation corresponding to a second number of ports based on RS resources of a first number of ports.

[0518] In an embodiment, the second capability information is carried through terminal assistance information.

[0519] In an embodiment, the second capability information is reported for a serving cell.

[0520] In an embodiment, the first communication device reports the second capability information without carrying serving cell indication information, and the second capability information is applicable to a serving cell currently transmitting the second capability information or all serving cells of the first communication device.

[0521] In an embodiment, the first communication device reports the second capability information with carrying serving cell indication information, and the second capability information is applicable to a serving cell indicated by the serving cell indication information.

[0522] In an embodiment, the second quantity is determined based on one or more of the following:

[0523] the first indication information;

[0524] the first RS resource;

[0525] the second indication information;

[0526] the first indication information and the second indication information;

[0527] the first RS resource and the second indication information;

[0528] the third indication information indicating a value of the second quantity;

[0529] the fourth indication information indicating a second RS resource;

[0530] the second RS resource;

[0531] the first RS resource and the second RS resource.

[0532] The second communication device 700 of the embodiments of the present application can realize the corresponding functions of the second communication device in the method embodiments described above. The corresponding processes, functions, implementation manners and advantages of each module (sub-module, unit or component, etc.) in the second communication device 700 can be referred to the corresponding description in the method embodiments described above, and will not be described here. It should be noted that the functions described with respect to each module (sub-module, unit or component, etc.) in the second communication device 700 of the embodiments of the present application can be realized by different modules (sub-modules, units or components, etc.), or can be realized by the same module (sub-module, unit or component, etc.).

[0533] FIG. 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application. The communication device 800 includes a processor 810, which can call and run a computer program from a memory to enable the communication device 800 to implement the method in the embodiments of the present application.

[0534] In an embodiment, the communication device 800 can further include a memory 820. The processor 810 can invoke and run a computer program from the memory 820, so that the communication device 800 implements the method in the embodiments of the present application.

[0535] The memory 820 can be a separate device independent of the processor 810, or can be integrated in the processor 810.

[0536] In an embodiment, the communication device 800 can further include a transceiver 830, and the processor 810 can control the transceiver 830 to communicate with other devices, specifically, to send information or data to other devices, or receive information or data sent by other devices.

[0537] The transceiver 830 can include a transmitter and a receiver. The transceiver 830 can further include an antenna, and the number of antennas can be one or more.

[0538] In an embodiment, the communication device 800 can be a first communication device in the embodiments of the present application, and the communication device 800 can implement the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For brevity, details are not repeated here.

[0539] In an embodiment, the communication device 800 can be a second communication device in the embodiments of the present application, and the communication device 800 can implement the corresponding processes implemented by the second communication device in the various methods of the embodiments of the present application. For brevity, details are not repeated here.

[0540] FIG. 9 is a schematic structural diagram of a chip 900 according to an embodiment of the present application. The chip 900 includes a processor 910, which can invoke and run a computer program from a memory to implement the method in the embodiments of the present application.

[0541] In an embodiment, the chip 900 can further include a memory 920. The processor 910 can invoke and run a computer program from the memory 920 to implement the method executed by the first communication device or the second communication device in the embodiments of the present application.

[0542] The memory 920 can be a separate device independent of the processor 910, or can be integrated in the processor 910.

[0543] In an embodiment, the chip 900 can further include an input interface 930. The processor 910 can control the input interface 930 to communicate with other devices or chips, specifically, to obtain information or data sent by other devices or chips.

[0544] In an embodiment, the chip 900 can further include an output interface 940. The processor 910 can control the output interface 940 to communicate with other devices or chips, and in particular, can output information or data to other devices or chips.

[0545] In an embodiment, the chip can be applied to the first communication device in the embodiments of the present application, and the chip can implement the corresponding procedures implemented by the first communication device in the various methods of the embodiments of the present application. For brevity, details are not repeated here.

[0546] In an embodiment, the chip can be applied to the second communication device in the embodiments of the present application, and the chip can implement the corresponding procedures implemented by the second communication device in the various methods of the embodiments of the present application. For brevity, details are not repeated here.

[0547] The chip applied to the first communication device and the second communication device can be the same chip or different chips.

[0548] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0549] The processor mentioned above can be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above can be a microprocessor or any conventional processor, etc.

[0550] The memory mentioned above can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. The non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM).

[0551] It should be understood that the above-mentioned memory is an example but not a limiting description, for example, the memory in the embodiments of the present application can also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and the like. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable type of memory.

[0552] Fig. 10 is a schematic block diagram of a communication system 1000 according to embodiments of the present application. The communication system 1000 includes a first communication device 1010 and a second communication device 1020.

[0553] The first communication device 1010 is configured to receive first indication information, the first indication information indicating a first RS resource; and is further configured to report CSI or perform demodulation of data and / or control signaling based on the first RS resource.

[0554] The second communication device 1020 is configured to send first indication information, the first indication information indicating a first RS resource, so that the first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource.

[0555] The first communication device 1010 can be configured to implement the corresponding functions of the first communication device in the above-mentioned method, and the second communication device 1020 can be configured to implement the corresponding functions of the second communication device in the above-mentioned method. For the sake of brevity, it will not be repeated here.

[0556] In the above embodiments, all or part of the processes can be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the processes can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed by a computer, the computer instructions generate all or part of the processes or functions in the embodiments of the present application. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center through a wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. containing one or more available media sets. The available medium can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), an optical medium (for example, DVD), or a semiconductor medium (for example, solid state disk (SSD)), etc.

[0557] It should be understood that the size of the sequence number of each process described above in various embodiments of the present application does not mean the order of execution, and the execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0558] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0559] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A communication method comprises: A first communication device receives first indication information, the first indication information indicating a first RS resource; The first communication device reports channel state information (CSI) or demodulates data and / or control signaling based on the first RS resource. The method of claim 1, wherein, The first RS resource is used for channel measurement. The method of any one of claims 1 or 2, wherein, The method further comprises: The first communication device receives second indication information; The first communication device reports CSI or demodulates data and / or control signaling based on the first RS resource, comprising: the first communication device reports CSI or demodulates data and / or control signaling based on the first RS resource and / or the second indication information. The method of claim 3, wherein, The second indication information indicates one or more of the following: a first AI model, an identifier of the first AI model, a number of the first AI model, an indication identifier, an indication number, an association identifier, a consistency identifier. The method of any one of claims 1 to 4, wherein, The first communication device reports CSI, the CSI corresponding to a second number of ports, or the first communication device demodulates data and / or control signaling, the data and / or control signaling corresponding to a second number of ports; wherein the first RS resource has a first number of ports, and the first number is less than the second number. The method of any one of claims 1 to 5, wherein, The method further comprises: The first communication device receives third indication information, the third indication information indicating a value of the second number. The method of any one of claims 1 to 6, wherein, The method further comprises: The first communication device receives fourth indication information, the fourth indication information indicating a second RS resource, the second RS resource being used to provide RS configuration information. The method of claim 7, wherein, The method further comprises: The first communication device receives fifth indication information, the fifth indication information indicating a relationship between the first RS resource and the second RS resource. The method of any one of claims 1 to 6, wherein, The method further comprises: The first communication device receives sixth indication information, the sixth indication information indicating the second RS resource, and the first RS resource corresponding to part of the second RS resource. The method of any one of claims 1 to 6, wherein, The first indication information indicates the first RS resource and the second RS resource, the first RS resource being used for channel measurement, and the second RS resource being used to provide RS configuration information. The method of any one of claims 1 to 10, wherein The method further comprises: The first communication device receives reporting indication signaling, the reporting indication signaling indicating one or more of the following information: reporting type related information, reporting format related information, reporting data quantization method related information, information related to reporting Rank (RI) restrictions, reporting error related information, reporting environment related information, time information and / or time information corresponding to reporting information. The method of any one of claims 1 to 11, wherein, The method further comprises: The first communication device sends first reporting signaling, the first reporting signaling including first reporting results, the first reporting results being obtained based on the first RS resource. The method of claim 12, wherein, The first reporting signaling further includes one or more of the following information related to the first reporting results: time information, cell related information, location information, speed related information, reliability related information, error related information, and wireless environment related information. The method of any one of claims 7 to 13, wherein, The method further comprises: The first communication device receives seventh indication information, and the seventh indication information indicates that the first communication device performs one or more operations of measurement, reporting or demodulation based on the second RS resource. The method of claim 14, wherein, The method further includes: The first communication device receives eighth indication information, and the eighth indication information indicates a reporting mode. The method of claim 15, wherein, The reporting mode includes one or more of the following: reporting the second reporting result through second reporting signaling, wherein the second reporting result is obtained based on the second RS resource; reporting the second reporting result through second reporting signaling, and the second reporting signaling further carries information indicating that the second reporting result is obtained based on the second RS resource or the first RS resource; reporting the first reporting result and the second reporting result through second reporting signaling, wherein the first reporting result is obtained based on the first RS resource, and the second reporting result is obtained based on the second RS resource. The method of any one of claims 1 to 16, wherein, The CSI includes one or more of the following: precoding matrix indication (PMI) information, channel matrix information, channel eigenvector information, channel quality indication (CQI) information, and rank indication (RI) information. The method of claim 17, wherein, The CQI information and / or the RI information are obtained in one or more of the following ways: based on measurement of the first RS resource; obtained after measurement of the first RS resource and after adding an adjustment value; determined according to network indication information; obtained based on a first AI model output result. The method of any one of claims 1 to 18, wherein, The method further includes: The first communication device reports first capability information, and the first capability information includes one or more of the following: The first communication device reports a capability of reporting CSI corresponding to a second number of ports based on RS resources of a first number of ports; The first communication device reports a capability of demodulating data and / or control signaling corresponding to a second number of ports based on RS resources of a first number of ports. The method of claim 19, wherein, The first capability information is independently reported according to one or more of the following: frequency band, frequency band combination, each frequency band in the frequency band combination, each carrier of each frequency band in the frequency band combination, frequency band range, and terminal. The method of any one of claims 1 to 20, wherein, The method further includes: The first communication device reports second capability information, and the second capability information includes one or more of the following: The first communication device reports a capability of reporting CSI corresponding to a second number of ports based on RS resources of a first number of ports; The first communication device reports a capability of demodulating data and / or control signaling corresponding to a second number of ports based on RS resources of a first number of ports. The method of claim 21, wherein, The second capability information is carried through terminal assistance information. The method of claim 21 or 22, wherein, The second capability information is reported for a serving cell. The method of claim 23, wherein, When the first communication device reports the second capability information, the second capability information is applicable to a serving cell currently transmitting the second capability information or all serving cells of the first communication device, and the first communication device does not carry serving cell indication information. The method of claim 23, wherein, When the first communication device reports the second capability information, the second capability information is applicable to a serving cell indicated by the serving cell indication information, and the first communication device carries the serving cell indication information. The method of claim 5, 6, 19, or 21, wherein, The second number is determined based on one or more of the following: first indication information; first RS resource; second indication information; The first indication information and the second indication information; The first RS resource and the second indication information; The third indication information indicates a value of the second quantity. The fourth indication information indicates the second RS resource. The second RS resource; The first RS resource and the second RS resource. A communication method, comprising: The second communication device sends first indication information, which indicates a first RS resource, so that the first communication device reports CSI or demodulates data and / or control signaling based on the first RS resource. The method of claim 27, wherein, The first RS resource is used for channel measurement. The method of any one of claims 27 or 28, wherein, The method further comprises: The second communication device sends second indication information, so that the first communication device reports CSI or demodulates data and / or control signaling based on the first RS resource and / or the second indication information. The method of claim 29, wherein, The second indication information indicates one or more of the following: a first AI model, an identifier of the first AI model, a number of the first AI model, an indication identifier, an indication number, an association identifier, and a consistency identifier. The method of any one of claims 27-30, wherein The first communication device reports CSI, which corresponds to a second quantity of ports, or demodulates data and / or control signaling, which corresponds to a second quantity of ports; wherein the first RS resource has a first quantity of ports, and the first quantity is less than the second quantity. The method of any one of claims 27-31, wherein The method further comprises: The second communication device sends third indication information, which indicates a value of the second quantity. The method of any one of claims 27 to 32, wherein The method further comprises: The second communication device sends fourth indication information, which indicates a second RS resource, and the second RS resource is used to provide RS configuration information. The method of claim 33, wherein, The method further comprises: The second communication device sends fifth indication information, which indicates a relationship between the first RS resource and the second RS resource. The method of any one of claims 27 to 32, wherein, The method further comprises: The second communication device sends sixth indication information, which indicates the second RS resource, and the first RS resource corresponds to part of the second RS resource. The method of any one of claims 27 to 32, wherein The first indication information indicates the first RS resource and the second RS resource, the first RS resource is used for channel measurement, and the second RS resource is used to provide RS configuration information. The method of any one of claims 27 to 36, wherein The method further comprises: The second communication device sends reporting indication signaling, which indicates one or more of the following information: reporting type related information, reporting format related information, reporting data quantization method related information, information related to reporting Rank (RI) restrictions, reporting error related information, reporting environment related information, time information and / or time information corresponding to reporting information. The method of any one of claims 27 to 37, wherein The method further comprises: The second communication device sends first reporting signaling, which includes a first reporting result, and the first reporting result is obtained based on a first RS resource. The method of claim 38, wherein, The first reporting signaling further includes one or more of the following information related to the first reporting result: time information, cell related information, location information, speed related information, reliability related information, error related information, and wireless environment related information. The method of any one of claims 33-39, wherein The method further comprises: The second communication device sends seventh indication information, and the seventh indication information indicates that the first communication device performs one or more operations of measurement, reporting or demodulation based on the second RS resource. The method of claim 40, wherein, The method further comprises: The second communication device sends eighth indication information, and the eighth indication information indicates a reporting mode. The method of claim 41, wherein, The reporting mode comprises one or more of the following: The second communication device reports the second reporting result through the second reporting signaling, wherein the second reporting result is obtained based on the second RS resource; The second communication device reports the second reporting result through the second reporting signaling, and the second reporting signaling further carries information indicating that the second reporting result is obtained based on the second RS resource or the first RS resource; The second communication device reports the first reporting result and the second reporting result through the second reporting signaling, wherein the first reporting result is obtained based on the first RS resource, and the second reporting result is obtained based on the second RS resource. The method of any one of claims 27 to 42, wherein The CSI comprises one or more of the following: precoding matrix indication (PMI) information, channel matrix information, channel eigenvector information, channel quality indication (CQI) information, and rank indication (RI) information. The method of claim 43, wherein, The CQI information and / or the RI information are obtained in one or more of the following ways: Based on the first RS resource measurement; Based on the first RS resource measurement and then obtained after adding an adjustment value; According to network indication information; Based on the first AI model output result. The method of any one of claims 27 to 44, wherein, The method further comprises: The second communication device receives first capability information reported by the first communication device; wherein the first capability information comprises one or more of the following: The first communication device reports the capability of reporting the CSI corresponding to the second number of ports based on the RS resource of the first number of ports; The first communication device reports the capability of demodulating the data and / or control signaling corresponding to the second number of ports based on the RS resource of the first number of ports. The method of claim 45, wherein, The first capability information is independently reported according to one or more of the following: frequency band, frequency band combination, each frequency band in the frequency band combination, each carrier of each frequency band in the frequency band combination, frequency band range, and terminal. The method of any one of claims 27 to 46, wherein The method further comprises: The second communication device receives second capability information reported by the first communication device; wherein the second capability information comprises one or more of the following: The first communication device reports the capability of reporting the CSI corresponding to the second number of ports based on the RS resource of the first number of ports; The first communication device reports the capability of demodulating the data and / or control signaling corresponding to the second number of ports based on the RS resource of the first number of ports. The method of claim 47, wherein, The second capability information is carried by terminal assistance information. The method of claim 47 or 48, wherein, The second capability information is reported for a serving cell. The method of claim 49, wherein, When the first communication device reports the second capability information, the second capability information is applicable to the serving cell currently transmitting the second capability information or all serving cells of the first communication device. The method of claim 49, wherein, When the first communication device reports the second capability information, the second capability information is applicable to the serving cell indicated by the serving cell indication information. The method of claim 31, 32, 45, or 47, wherein, The second number is determined based on one or more of the following: The first indication information; The first RS resource; The second indication information; The first indication information and the second indication information; The first RS resource and the second indication information: The third indication information, indicating a value of the second quantity; The fourth indication information, indicating the second RS resource; The second RS resource; The first RS resource and the second RS resource. A first communication device, comprising: A transceiver, configured to receive first indication information, the first indication information indicating a first RS resource; A processing unit, configured to report CSI or perform demodulation of data and / or control signaling based on the first RS resource. The first communication device of claim 53, wherein The first RS resource is used for channel measurement. The first communication device of any one of claims 53 or 54, wherein The transceiver is further configured to receive second indication information; and the processing unit is further configured to report CSI or perform demodulation of data and / or control signaling based on the first RS resource, including that the first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resource and / or the second indication information. The first communication device of claim 55, wherein The second indication information indicates one or more of the following: a first AI model, an identifier of the first AI model, a number of the first AI model, an indication identifier, an indication number, an association identifier, and a consistency identifier. The first communication device of any one of claims 53 to 56, wherein The first communication device reports CSI, the CSI corresponding to a second quantity of ports, or the first communication device demodulates data and / or control signaling, the data and / or control signaling transmission corresponding to a second quantity of ports; wherein a port number of the first RS resource is a first quantity, and the first quantity is less than the second quantity. The first communication device of any one of claims 53 to 57, wherein The transceiver is further configured to receive third indication information, the third indication information indicating a value of the second quantity. The first communication device of any one of claims 53 to 58, wherein The transceiver is further configured to receive fourth indication information, the fourth indication information indicating a second RS resource, the second RS resource being used to provide RS configuration information. The first communication device of claim 59, wherein The transceiver is further configured to receive fifth indication information, the fifth indication information indicating a relationship between the first RS resource and the second RS resource. The first communication device of any one of claims 53 to 58, wherein The transceiver is further configured to receive sixth indication information, the sixth indication information indicating the second RS resource, and the first RS resource corresponding to part of the second RS resource. The first communication device of any one of claims 53 to 58, wherein The first indication information indicates the first RS resource and the second RS resource, the first RS resource being used for channel measurement, and the second RS resource being used to provide RS configuration information. The first communication device of any one of claims 53 to 62, wherein The transceiver is further configured to receive reporting indication signaling, the reporting indication signaling indicating one or more of the following information: reporting type related information, reporting format related information, reporting data quantization method related information, information related to reporting Rank (RI) restriction, reporting error related information, reporting environment related information, time information and / or time information corresponding to reporting information. The first communication device of any one of claims 53 to 63, wherein The transceiver is further configured to send first reporting signaling, the first reporting signaling including a first reporting result, the first reporting result being obtained based on the first RS resource. The first communication device of claim 64, wherein The first reporting signaling further comprises one or more of the following information related to the first reporting result: time information, cell-related information, location information, speed-related information, reliability-related information, error-related information, and wireless environment-related information. The first communication device of any one of claims 59 to 65, wherein The transceiver is further configured to receive seventh indication information, the seventh indication information indicating that the first communication device is to perform one or more of the following operations based on the second RS resource: measurement, reporting, or demodulation. The first communication device of claim 66, wherein The transceiver is further configured to receive eighth indication information, the eighth indication information indicating a reporting manner. The first communication device of claim 67, wherein The reporting manner comprises one or more of the following: reporting a second reporting result through second reporting signaling, wherein the second reporting result is obtained based on the second RS resource; reporting the second reporting result through the second reporting signaling, and the second reporting signaling further carrying information indicating that the second reporting result is obtained based on the second RS resource or the first RS resource; reporting the first reporting result and the second reporting result through the second reporting signaling, wherein the first reporting result is obtained based on the first RS resource, and the second reporting result is obtained based on the second RS resource. The first communication device of any one of claims 53 to 68, wherein The CSI comprises one or more of the following: precoding matrix indication (PMI) information, channel matrix information, channel eigenvector information, channel quality indication (CQI) information, and rank indication (RI) information. The first communication device of claim 69, wherein The CQI information and / or the RI information is obtained in one or more of the following manners: based on measurement of the first RS resource; obtained after measurement of the first RS resource and after adding an adjustment value; determined according to network indication information; obtained based on a first AI model output result. The first communication device of any one of claims 53 to 70, wherein The processing unit is further configured to report first capability information, wherein the first capability information comprises one or more of the following: the first communication device has the capability to report CSI corresponding to a second number of ports based on RS resources of a first number of ports; the first communication device has the capability to demodulate data and / or control signaling corresponding to a second number of ports based on RS resources of a first number of ports. The first communication device of claim 71, wherein The first capability information is independently reported according to one or more of the following: a frequency band, a frequency band combination, each frequency band in a frequency band combination, each carrier of each frequency band in a frequency band combination, a frequency band range, and a terminal. The first communication device of any one of claims 53 to 72, wherein The processing unit is further configured to report second capability information, wherein the second capability information comprises one or more of the following: the first communication device has the capability to report CSI corresponding to a second number of ports based on RS resources of a first number of ports; the first communication device has the capability to demodulate data and / or control signaling corresponding to a second number of ports based on RS resources of a first number of ports. The first communication device of claim 73, wherein The second capability information is carried through terminal assistance information. The first communication device of claim 73 or 74, wherein The second capability information is reported for a serving cell. The first communication device of claim 75, wherein When the first communication device reports the second capability information, the second capability information is applicable to a serving cell currently transmitting the second capability information or all serving cells of the first communication device. The first communication device of claim 75, wherein The first communication device carries service cell indication information when reporting the second capability information, and the second capability information is applicable to a service cell indicated by the service cell indication information. The first communication device of claim 57, 58, 71 or 73, wherein The second quantity is determined based on one or more of the following: first indication information; first RS resources; second indication information; the first indication information and the second indication information; the first RS resources and the second indication information; third indication information indicating a value of the second quantity; fourth indication information indicating second RS resources; the second RS resources; the first RS resources and the second RS resources. A second communication device comprises: a transceiver configured to transmit first indication information indicating first RS resources, so that a first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resources. The second communication device of claim 79, wherein The first RS resources are used for channel measurement. The second communication device according to any one of claims 79 or 80, wherein The transceiver is further configured to transmit second indication information, so that the first communication device reports CSI or performs demodulation of data and / or control signaling based on the first RS resources and / or the second indication information. The second communication device of claim 81, wherein The second indication information indicates one or more of the following: a first AI model, an identifier of the first AI model, a number of the first AI model, an indication identifier, an indication number, an association identifier, and a consistency identifier. The second communication device of any one of claims 79 to 82, wherein The first communication device reports CSI corresponding to a second quantity of ports, or demodulates data and / or control signaling corresponding to a second quantity of ports; wherein the first RS resources have a first quantity of ports, and the first quantity is less than the second quantity. The second communication device of any one of claims 79 to 83, wherein The transceiver is further configured to transmit third indication information indicating a value of the second quantity. The second communication device of any one of claims 79 to 84, wherein The transceiver is further configured to transmit fourth indication information indicating second RS resources, and the second RS resources are used to provide RS configuration information. The second communication device of claim 85, wherein The transceiver is further configured to transmit fifth indication information indicating a relationship between the first RS resources and the second RS resources. The second communication device of any one of claims 79 to 84, wherein The transceiver is further configured to transmit sixth indication information indicating the second RS resources, and the first RS resources correspond to part of the second RS resources. The second communication device of any one of claims 79 to 84, wherein The first indication information indicates the first RS resources and the second RS resources, the first RS resources are used for channel measurement, and the second RS resources are used to provide RS configuration information. The second communication device of any one of claims 79 to 88, wherein The transceiver is further configured to transmit reporting indication signaling indicating one or more of the following information: reporting type related information, reporting format related information, reporting data quantization method related information, information related to reporting Rank (RI) restrictions, reporting error related information, reporting environment related information, time information and / or time information corresponding to reporting information. The second communication device of any one of claims 79 to 89, wherein The transceiver is further configured to transmit first reporting signaling including a first reporting result, and the first reporting result is obtained based on the first RS resources. The second communication device of claim 90, wherein The first reporting signaling further comprises one or more of the following information related to the first reporting result: time information, cell-related information, location information, speed-related information, reliability-related information, error-related information, and wireless environment-related information. The second communication device of any one of claims 85 to 91, wherein The transceiver is further configured to send seventh indication information, which indicates that the first communication device performs one or more of the following operations based on the second RS resource: measurement, reporting, and demodulation. The second communication device of claim 92, wherein The transceiver is further configured to send eighth indication information, which indicates a reporting manner. The second communication device of claim 93, wherein The reporting manner comprises one or more of the following: reporting a second reporting result through second reporting signaling, wherein the second reporting result is obtained based on the second RS resource; reporting the second reporting result through the second reporting signaling, and the second reporting signaling further carries information indicating that the second reporting result is obtained based on the second RS resource or the first RS resource; reporting the first reporting result and the second reporting result through the second reporting signaling, wherein the first reporting result is obtained based on the first RS resource, and the second reporting result is obtained based on the second RS resource. The second communication device according to any of claims 79 to 94, wherein The CSI comprises one or more of the following: precoding matrix indication (PMI) information, channel matrix information, channel eigenvector information, channel quality indication (CQI) information, and rank indication (RI) information. The second communication device of claim 95, wherein The CQI information and / or the RI information is obtained in one or more of the following ways: based on measurement of the first RS resource; obtained after measurement of the first RS resource and after adding an adjustment value; determined according to network indication information; obtained based on a first AI model output result. The second communication device of any one of claims 79 to 96, wherein The transceiver is further configured to receive first capability information reported by the first communication device, wherein the first capability information comprises one or more of the following: the capability of the first communication device to report CSI corresponding to a second number of ports based on RS resources of a first number of ports; the capability of the first communication device to demodulate data and / or control signaling corresponding to a second number of ports based on RS resources of a first number of ports. The second communication device of claim 97, wherein The first capability information is independently reported according to one or more of the following: frequency band, frequency band combination, each frequency band in the frequency band combination, each carrier of each frequency band in the frequency band combination, frequency band range, and terminal. The transceiver is further configured to receive second capability information reported by the first communication device, wherein the second capability information comprises one or more of the following: The second communication device according to any of claims 79 to 98, wherein the capability of the first communication device to report CSI corresponding to a second number of ports based on RS resources of a first number of ports; the capability of the first communication device to demodulate data and / or control signaling corresponding to a second number of ports based on RS resources of a first number of ports. The second capability information is carried by terminal assistance information. The second communication device of claim 99, wherein The second capability information is reported for a serving cell. The second communication device according to claim 99 or 100, wherein When the first communication device reports the second capability information, the second capability information does not carry serving cell indication information, and the second capability information is applicable to a serving cell currently transmitting the second capability information or all serving cells of the first communication device. The second communication device of claim 101, wherein ​ The second communication device of claim 101, wherein The first communication device reports the second capability information when carrying service cell indication information, and the second capability information is applicable to a service cell indicated by the service cell indication information. The second communication device according to claim 83, 84, 97 or 99, wherein The second quantity is determined based on one or more of the following: first indication information; first RS resource; second indication information; first indication information and second indication information; first RS resource and second indication information: third indication information, indicating a value of the second quantity; fourth indication information, indicating a second RS resource; second RS resource; first RS resource and second RS resource. A communication device comprising: A transceiver, a processor and a memory, the memory is used to store a computer program, the transceiver is used to communicate with other devices, and the processor is used to call and run the computer program stored in the memory, so that the communication device executes the method as claimed in any one of claims 1 to 52. A chip comprising: A processor is used to call and run a computer program from a memory, so that a device installed with the chip executes the method as claimed in any one of claims 1 to 52. A computer readable storage medium is used to store a computer program, which makes the device execute the method as claimed in any one of claims 1 to 52 when the computer program is run by the device. A computer program product includes computer program instructions, which make a computer execute the method as claimed in any one of claims 1 to 52. A computer program makes a computer execute the method as claimed in any one of claims 1 to 52. A communication system includes: A first communication device is used to execute the method as claimed in any one of claims 1 to 26; A second communication device is used to execute the method as claimed in any one of claims 27 to 52.

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