Communication method and communication device

Abstract

The invention provides a communication method and a communication device, and relates to the technical field of communication. When the terminal equipment determines the channel state information report, the measurement resource configuration mode used by the terminal equipment can be defined through the reference signal index, so that the overhead of information resources is reduced when the channel state information report is sent. The method comprises: determining a channel state information report, the channel state information report comprising measurement results of N reference signals and M reference signal indexes, the measurement results of the M reference signals in the measurement results of the N reference signals corresponding to the M reference signal indexes, both N and M being positive integers, and M being less than or equal to N; and sending the channel state information report.

Description

Technical Field

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

[0002] Channel state information (CSI) reports are reports carrying channel state information that terminal devices send back to network devices. In other words, terminal devices can use CSI reports to provide network devices with information about the state of the channel they are in. Network devices can then use CSI reports for downlink scheduling, enabling the communication system to adapt to the current channel conditions.

[0003] However, when terminal devices send channel status information reports to network devices, there may be significant information resource overhead. Summary of the Invention

[0004] This application provides a communication method and a communication device. When a terminal device determines a channel state information report, the measurement resource configuration method used by the terminal device can be defined by a reference signal index, thereby reducing the overhead of information resources.

[0005] Firstly, a communication method is provided, the method comprising:

[0006] The channel state information report is determined, which includes the measurement results of N reference signals and M reference signal indices. The measurement results of the M reference signals correspond to the M reference signal indices, where N and M are both positive integers, and M is less than or equal to N. The channel state information report is then transmitted. This reduces the overhead of information resources when transmitting the channel state information report.

[0007] In conjunction with the first aspect, in some embodiments of the first aspect, the reference signals indicated by the M reference signal indices belong to first reference signals, and the first reference signals include reference signals associated with the first spatial relationship state. Thus, each first spatial relationship state can be associated with a first reference signal, and each first spatial relationship state has a corresponding index. Each reference signal index in the channel state information report can indicate the index corresponding to a certain first spatial relationship state, thereby determining the first reference signal associated with that first spatial relationship state.

[0008] In conjunction with the first aspect, in some embodiments of the first aspect, the first spatial relationship state includes the spatial relationship state configured by Radio Resource Control (RRC) and / or the spatial relationship state activated by the Media Access Control (MAC) control element CE. Thus, the reference signal associated with the spatial relationship state configured by RRC can correspond to the reference signal configured in the first measurement resource configuration mode three, and the first reference signal indicated by the reference signal index can be related to the spatial relationship state. Similarly, the reference signal associated with the spatial relationship state activated by the MAC control element CE can correspond to the reference signal configured in the first measurement resource configuration mode four, and the first reference signal indicated by the reference signal index can be related to the spatial relationship state.

[0009] In conjunction with the first aspect, in some embodiments of the first aspect, the first reference signal includes a reference signal associated with the spatial reception parameters in the first spatial relationship state. Thus, the first reference signal can be used for acquired channel state information or measurement results, such as RSRP and / or SINR.

[0010] In conjunction with the first aspect, in some embodiments of the first aspect, the first reference signal includes one or more of the following: a reference signal of the Synchronization Signal Block (SSB) type, and a reference signal for beam management. Thus, each spatial relationship state can be associated with a first reference signal, and when the first reference signal satisfies the above conditions, the spatial relationship state can correspond to a reference signal index in the channel state information report. That is, the first reference signal indicated by the reference signal index can be related to a spatial relationship state that satisfies the above conditions.

[0011] In conjunction with the first aspect, in some embodiments of the first aspect, the reference signal of the Synchronization Signal Block (SSB) type includes a reference signal associated with the second spatial relationship state of the second reference signal; the reference signal for beam management includes a reference signal associated with the second spatial relationship state of the second reference signal; and the second reference signal includes a reference signal associated with the spatial reception parameters in the first spatial relationship state. Thus, the second reference signal can be understood as the reference signal associated with the spatial reception parameters in the first spatial relationship state. In this case, the first reference signal may include the reference signal associated with the second spatial relationship state of the second reference signal.

[0012] In conjunction with the first aspect, in some embodiments of the first aspect, the larger the index value of the spatial relationship state configured by the RRC, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state configured by the RRC; and / or, the larger the index value of the spatial relationship state activated by the MAC CE, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state activated by the MAC CE. This facilitates the network device's reading and parsing of data in the channel state information report.

[0013] In conjunction with the first aspect, in some embodiments of the first aspect, the reference signals indicated by the M reference signal indices belong to a third reference signal, wherein the third reference signal includes reference signals in the reference signal set configured by RRC, and / or reference signals in the reference signal set configured by MAC CE. Thus, the reference signals in the reference signal set configured by RRC can correspond to the reference signals configured in the first measurement resource configuration method one, and the third reference signal indicated by the reference signal index can be related to the reference signals in the reference signal set configured by RRC. Similarly, the reference signals in the reference signal set configured by MAC CE can correspond to the reference signals configured in the first measurement resource configuration method two, and the third reference signal indicated by the reference signal index can be related to the reference signals in the reference signal set configured by MAC CE. By combining the first configuration and the second configuration, the first measurement resource can be jointly determined, thereby allowing the terminal device to determine a larger number of reference signals.

[0014] In conjunction with the first aspect, in some embodiments of the first aspect, when determining the reference signal index, the third reference signal has a higher priority than the reference signal associated with the first spatial relationship state. This is because the third reference signal is easier to obtain than the reference signal associated with the first spatial relationship state. Therefore, if the third reference signal has a higher priority, the reference signal associated with the indirectly obtained spatial relationship state can be placed later, thereby facilitating data parsing and improving efficiency.

[0015] In conjunction with the first aspect, in some embodiments of the first aspect, the larger the index value of the third reference signal in the reference signal set, the larger the index value of the third reference signal in the channel state information report; and / or, the larger the index value of the spatial relationship state configured by RRC, the larger the index value of the first reference signal in the channel state information report, wherein the first reference signal is determined by the spatial relationship state configured by RRC; and / or, the larger the index value of the spatial relationship state activated by MAC CE, the larger the index value of the first reference signal in the channel state information report, wherein the first reference signal is determined by the spatial relationship state activated by MAC CE. This facilitates the reading and parsing of data in the channel state information report by network devices.

[0016] In conjunction with the first aspect, in some embodiments of the first aspect, the measurement results of the N reference signals in the channel state information report include the measurement result of the fourth reference signal, and the channel state information report does not include an index of the fourth reference signal, which includes a reference signal associated with an indication of spatial relationship status. Thus, in the channel state information report, since the network device can determine which reference signal indicates the spatial relationship status (i.e., the network device can determine which reference signal the second measurement resource is), the channel state information report can include an index of the fourth reference signal.

[0017] In conjunction with the first aspect, in some embodiments of the first aspect, the reference signal associated with the spatial relationship state includes one or more of the following: a reference signal of the Synchronization Signal Block (SSB) type, and a reference signal for beam management. Thus, each spatial relationship state can be associated with a first reference signal, and if the first reference signal satisfies the above conditions, the spatial relationship state can correspond to a reference signal index in the channel state information report. That is, the first reference signal indicated by the reference signal index can be related to the spatial relationship state that satisfies the above conditions.

[0018] In conjunction with the first aspect, in some embodiments of the first aspect, the reference signal of the Synchronization Signal Block (SSB) type includes a reference signal associated with the third spatial relationship state of the fifth reference signal, and the reference signal for beam management includes a reference signal associated with the third spatial relationship state of the fifth reference signal. The fifth reference signal includes a reference signal associated with spatial reception parameters in the spatial relationship state. Thus, the fifth reference signal can be understood as the reference signal associated with the spatial reception parameters in the third spatial relationship state. In this case, the first reference signal may include the reference signal associated with the third spatial relationship state of the fifth reference signal.

[0019] In conjunction with the first aspect, in some embodiments of the first aspect, the index of the first reference signal is determined based on the most recently received spatial relationship state activated by the MAC CE, and the fourth reference signal is determined based on the most recently received indication spatial relationship state. This is because the MAC CE can dynamically update the activated spatial relationship state, or the DCI can dynamically update the indication spatial relationship state. Thus, the channel state information reports fed back by the terminal device at different times use different first and / or second measurement resources. In this case, the first and / or second measurement resources need to be determined based on the latest activated spatial relationship state and the latest indication spatial relationship state.

[0020] In conjunction with the first aspect, in some embodiments of the first aspect, the measurement results of the fourth reference signal are mapped with lower priority than the measurement results of the first reference signal in the channel state information report. This is because the configuration of the fourth reference signal is relatively dynamic, and there may be situations where the first reference signal is configured while the fourth reference signal is not. Therefore, if the first reference signal has a higher priority, the relatively dynamically changing fourth reference signal can be placed later, thereby facilitating data parsing and improving efficiency.

[0021] In conjunction with the first aspect, in some embodiments of the first aspect, the measurement results include one or more of the following: Reference Signal Received Power (RSRP) and Signal-to-Interference-plus-Noise Ratio (SINR). Thus, channel state information or measurement results can be obtained based on RSRP and / or SINR.

[0022] In conjunction with the first aspect, in some embodiments of the first aspect, transmitting a channel state information report includes:

[0023] If the measurement result of the first reference signal is greater than the target measurement result, or if the measurement result of the third reference signal is greater than the target measurement result, a channel state information report is sent. The target measurement result includes the sum of the measurement result of the fourth reference signal and the target offset. This allows the terminal device to send a channel state information report to the network device when it detects that the current beam is not good and other beams are better. The network device can then indicate the spatial relationship status and switch to a better beam. In other words, the network device will only switch beams when the conditions of other beams become sufficiently good, thereby reducing the frequency of beam reporting by the terminal device and minimizing unnecessary overhead.

[0024] Secondly, another communication method is provided, which includes:

[0025] Configure measurement resources; receive channel state information reports, which include measurement results for N reference signals and M reference signal indices. The measurement results for the M reference signals correspond to the M reference signal indices, where N and M are both positive integers, and M is less than or equal to N. This reduces information resource overhead when sending channel state information reports.

[0026] In conjunction with the second aspect, in some embodiments of the second aspect, the reference signals indicated by the M reference signal indices belong to the first reference signals, and the first reference signals include the reference signals associated with the first spatial relationship states. Thus, each first spatial relationship state can be associated with a first reference signal, and each first spatial relationship state has a corresponding index. Each reference signal index in the channel state information report can indicate the index corresponding to a certain first spatial relationship state, thereby determining the first reference signal associated with that first spatial relationship state.

[0027] In conjunction with the second aspect, in some embodiments of the second aspect, the first spatial relationship state includes the spatial relationship state configured by Radio Resource Control (RRC) and / or the spatial relationship state activated by the Media Access Control (MAC) control element CE. Thus, the reference signal associated with the spatial relationship state configured by RRC can correspond to the reference signal configured in the first measurement resource configuration mode three, and the first reference signal indicated by the reference signal index can be related to the spatial relationship state. Similarly, the reference signal associated with the spatial relationship state activated by the MAC control element CE can correspond to the reference signal configured in the first measurement resource configuration mode four, and the first reference signal indicated by the reference signal index can be related to the spatial relationship state.

[0028] In conjunction with the second aspect, in some embodiments of the second aspect, the first reference signal includes a reference signal associated with the spatial reception parameters in the first spatial relationship state. Thus, the first reference signal can be used for acquired channel state information or measurement results, such as RSRP and / or SINR.

[0029] In conjunction with the second aspect, in some embodiments of the second aspect, the first reference signal includes one or more of the following: a reference signal of the Synchronization Signal Block (SSB) type, and a reference signal for beam management. Thus, each spatial relationship state can be associated with a first reference signal, and when the first reference signal satisfies the above conditions, the spatial relationship state can correspond to a reference signal index in the channel state information report. That is, the first reference signal indicated by the reference signal index can be related to a spatial relationship state that satisfies the above conditions.

[0030] In conjunction with the second aspect, in some embodiments of the second aspect, the reference signal of the Synchronization Signal Block (SSB) type includes a reference signal associated with the second spatial relationship state of the second reference signal; the reference signal for beam management includes a reference signal associated with the second spatial relationship state of the second reference signal; and the second reference signal includes a reference signal associated with the spatial reception parameters in the first spatial relationship state. Thus, the second reference signal can be understood as the reference signal associated with the spatial reception parameters in the first spatial relationship state. In this case, the first reference signal may include the reference signal associated with the second spatial relationship state of the second reference signal.

[0031] In conjunction with the second aspect, in some embodiments of the second aspect, the larger the index value of the spatial relationship state configured by the RRC, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state configured by the RRC; and / or, the larger the index value of the spatial relationship state activated by the MAC CE, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state activated by the MAC CE. This facilitates the reading and parsing of data in the channel state information report by network devices.

[0032] In conjunction with the second aspect, in some embodiments of the second aspect, the reference signals indicated by the M reference signal indices belong to a third reference signal, wherein the third reference signal includes reference signals in the reference signal set configured by RRC, and / or reference signals in the reference signal set configured by MAC CE. Thus, the reference signals in the reference signal set configured by RRC can correspond to the reference signals configured in the first measurement resource configuration method one, and the third reference signal indicated by the reference signal index can be related to the reference signals in the reference signal set configured by RRC. Similarly, the reference signals in the reference signal set configured by MAC CE can correspond to the reference signals configured in the first measurement resource configuration method two, and the third reference signal indicated by the reference signal index can be related to the reference signals in the reference signal set configured by MAC CE. By combining the first configuration and the second configuration, the first measurement resource can be jointly determined, thereby allowing the terminal device to determine a larger number of reference signals.

[0033] In conjunction with the second aspect, in some embodiments of the second aspect, the index value of the third reference signal is greater than the index value of the reference signal associated with the first spatial relationship state. Thus, since the third reference signal is easier to obtain than the reference signal associated with the first spatial relationship state, if the third reference signal has a higher priority, the indirectly obtained reference signal associated with the spatial relationship state can be placed later, thereby facilitating data parsing and improving efficiency.

[0034] In conjunction with the second aspect, in some embodiments of the second aspect, the larger the index value of the third reference signal in the reference signal set, the larger the index value of the third reference signal in the channel state information report; and / or, the larger the index value of the spatial relationship state configured by RRC, the larger the index value of the first reference signal in the channel state information report, wherein the first reference signal is determined by the spatial relationship state configured by RRC; and / or, the larger the index value of the spatial relationship state activated by MAC CE, the larger the index value of the first reference signal in the channel state information report, wherein the first reference signal is determined by the spatial relationship state activated by MAC CE. This facilitates the reading and parsing of data in the channel state information report by network devices.

[0035] In conjunction with the second aspect, in some embodiments of the second aspect, the measurement results of the N reference signals in the channel state information report include the measurement result of the fourth reference signal, and the channel state information report does not include the index of the fourth reference signal, which includes a reference signal associated with an indication of spatial relationship status. Thus, in the channel state information report, since the network device can determine which reference signal indicates the spatial relationship status (i.e., the network device can determine which reference signal the second measurement resource is), the index of the fourth reference signal can be included in the channel state information report.

[0036] In conjunction with the second aspect, in some embodiments of the second aspect, the reference signal associated with the spatial relationship state includes one or more of the following: a reference signal of the Synchronization Signal Block (SSB) type, and a reference signal for beam management. Thus, each spatial relationship state can be associated with a first reference signal, and if the first reference signal satisfies the above conditions, the spatial relationship state can correspond to a reference signal index in the channel state information report. That is, the first reference signal indicated by the reference signal index can be related to the spatial relationship state that satisfies the above conditions.

[0037] In conjunction with the second aspect, in some embodiments of the second aspect, the reference signal of the Synchronization Signal Block (SSB) type includes a reference signal associated with the third spatial relationship state of the fifth reference signal, and the reference signal for beam management includes a reference signal associated with the third spatial relationship state of the fifth reference signal. The fifth reference signal includes a reference signal associated with spatial reception parameters in the spatial relationship state. Thus, the fifth reference signal can be understood as the reference signal associated with the spatial reception parameters in the third spatial relationship state. In this case, the first reference signal may include the reference signal associated with the third spatial relationship state of the fifth reference signal.

[0038] In conjunction with the second aspect, in some implementations of the second aspect, the measurement results of the fourth reference signal are mapped with lower priority than the measurement results of the first reference signal in the channel state information report. This is because the configuration of the fourth reference signal is relatively dynamic, and there may be situations where the first reference signal is configured while the fourth reference signal is not. Therefore, if the first reference signal has a higher priority, the relatively dynamically changing fourth reference signal can be placed later, thereby facilitating data parsing and improving efficiency.

[0039] In conjunction with the second aspect, in some embodiments of the second aspect, the measurement results include one or more of the following: Reference Signal Received Power (RSRP) and Signal-to-Interference-plus-Noise Ratio (SINR). Thus, channel state information or measurement results can be obtained based on RSRP and / or SINR.

[0040] In conjunction with the second aspect, in some embodiments of the second aspect, the measurement resources include a first measurement resource and / or a second measurement resource; wherein the first measurement resource includes one or more of the following: a first reference signal, a third reference signal; and the second measurement resource includes a fourth reference signal. Thus, the terminal device can determine the measurement results of one or more reference signals in the channel state information report based on the measurement resources configured in the network device.

[0041] Thirdly, a communication apparatus is provided for executing the method in any possible implementation of the first aspect described above. Specifically, the apparatus includes a module for executing the method in any possible implementation of the first aspect described above.

[0042] Fourthly, a communication apparatus is provided for performing the method in any possible implementation of the second aspect described above. Specifically, the apparatus includes a module for performing the method in any possible implementation of the second aspect described above.

[0043] Fifthly, this application provides yet another communication device, including a processor coupled to a memory, which can be used to execute instructions in the memory to implement the method in any of the possible implementations of the first or second aspect described above. Optionally, the device further includes a memory. Optionally, the device further includes a communication interface, to which the processor is coupled.

[0044] In one implementation, the device is a terminal device (or network device). When the device is a terminal device (or network device), the aforementioned communication interface can be a transceiver, or an input / output interface.

[0045] In another implementation, the device is a chip configured in a terminal device (or network device). When the device is a chip configured in a terminal device (or network device), the aforementioned communication interface can be an input / output interface.

[0046] A sixth aspect provides a processor, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is used to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute the method in any possible implementation of the first or second aspect described above.

[0047] In the specific implementation process, the processor can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, gate circuit, flip-flop, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be output to, for example, but not limited to, a transmitter and transmitted by the transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0048] In a seventh aspect, a processing apparatus is provided, including a processor and a memory. The processor is configured to read instructions stored in the memory and to receive signals via a receiver and transmit signals via a transmitter to execute the method in any of the possible implementations of the first or second aspect described above.

[0049] Optionally, there may be one or more processors and one or more memories.

[0050] Alternatively, the memory can be integrated with the processor, or the memory can be set up separately from the processor.

[0051] In the specific implementation process, the memory can be a non-transitory memory, such as read-only memory (ROM), which can be integrated with the processor on the same chip or set on different chips. This application does not limit the type of memory or the way the memory and processor are set.

[0052] It should be understood that the relevant data interaction process, such as sending instruction information, can be a process of outputting instruction information from the processor, and receiving capability information can be a process of the processor receiving input capability information. Specifically, the processed output data can be output to the transmitter, and the input data received by the processor can come from the receiver. Here, the transmitter and receiver can be collectively referred to as transceivers.

[0053] The processing device in the seventh aspect above can be a chip. The processor can be implemented in hardware or software. When implemented in hardware, the processor can be a logic circuit, integrated circuit, etc. When implemented in software, the processor can be a general-purpose processor that reads software code stored in memory. The memory can be integrated into the processor or located outside the processor and exist independently.

[0054] Eighthly, a computer program product is provided, comprising: a computer program (also referred to as code or instructions) that, when executed, causes a computer to perform the method in any possible implementation of the first or second aspect described above.

[0055] Ninthly, a computer-readable storage medium is provided that stores a computer program (also referred to as code or instructions) that, when executed on a computer, causes the computer to perform the methods in any possible implementation of the first or second aspect described above. Attached Figure Description

[0056] Figure 1 A schematic diagram of a communication system provided in an embodiment of this application;

[0057] Figure 2 A flowchart illustrating a communication method provided in an embodiment of this application;

[0058] Figure 3 A schematic diagram illustrating the transmission of a channel state information report, provided as an embodiment of this application;

[0059] Figure 4 This is a schematic block diagram of a communication device provided in an embodiment of this application. Detailed Implementation

[0060] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0061] In the embodiments of this application, terms such as "first" and "second" are used to distinguish identical or similar items with essentially the same function and effect. For example, the first value and the second value are only used to distinguish different values ​​and do not limit their order. Those skilled in the art will understand that terms such as "first" and "second" do not limit the quantity or execution order, and that terms such as "first" and "second" do not necessarily imply that they are different.

[0062] It should be noted that in the embodiments of the present application, words such as "exemplarily" or "for example" are used to give examples, illustrations or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the present application should not be construed as being more preferred or more advantageous than other embodiments or design solutions.确切而言,使用“示例性地”或者“例如”等词旨在以具体方式呈现相关概念。

[0063] In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or its similar expressions refer to any combination of these items, including any combination of single item(s) or plural item(s). For example, at least one of a, b, or c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple.

[0064] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th generation (5G) system or New Radio (NR), future evolved communication systems, such as 6th generation (6G) system, etc.

[0065] The terminal device in the embodiments of the present application can also be referred to as: User Equipment (UE), Mobile Station (MS), Mobile Terminal (MT), Access Terminal, User Unit, User Station, Mobile Station, Mobile Terminal, Remote Station, Remote Terminal, Mobile Device, User Terminal, Terminal, Wireless Communication Device, User Agent or User Device, etc.

[0066] Terminal devices can be devices that provide voice / data connectivity to users, such as handheld devices with wireless connectivity, in-vehicle devices, etc. Currently, examples of terminal devices include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or future public land mobile communication networks. This application does not limit the scope to terminal devices in a network (PLMN), etc.

[0067] By way of example and not limitation, in this application, the terminal device can be a terminal device in an Internet of Things (IoT) system. The Internet of Things is an important component of future information technology development. Its main technical characteristic is connecting objects to networks through communication technologies, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. Exemplarily, the terminal device in the embodiments of this application can be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that apply wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that can be worn directly on the body or integrated into a user's clothing or accessories. Wearable devices are not merely hardware devices; they can also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly defined, wearable smart devices include those with comprehensive functions, large size, and the ability to achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those focused on a specific application function and requiring the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0068] By way of example and not limitation, in the embodiments of this application, the terminal device can also be a terminal device in machine-type communication (MTC). Furthermore, the terminal device can also be an on-board module, on-board component, on-board chip, or on-board unit, etc., built into a vehicle as one or more components or units. The vehicle can implement the methods provided in this application through the built-in on-board module, on-board component, on-board chip, or on-board unit, etc. Therefore, the embodiments of this application can also be applied to vehicle-to-everything (V2X), long-term evolution-vehicle (LTE-V) technology, and vehicle-to-vehicle (V2V) technology.

[0069] The network equipment involved in this application can be a device that communicates with terminal devices. This network equipment can also be called an access network device or a wireless access network device. It can be a transmission reception point (TRP), an evolved NodeB (eNB or eNodeB) in an LTE system, a home base station (e.g., home evolved NodeB or home Node B, HNB), a base band unit (BBU), or a radio controller in a cloud radio access network (CRAN) scenario. Alternatively, the network equipment can be a relay station, access point, vehicle-mounted equipment, wearable devices, or network equipment in a 5G network or a network equipment in a future evolved PLMN network. It can also be an access point (AP) in a WLAN, or a gNB in ​​an NR system. The above-mentioned network equipment can also be a city base station, micro base station, pico base station, femtobase station, etc. This application does not limit this.

[0070] To facilitate understanding, we will first introduce some technical terms used in this application.

[0071] 1. Quasi-co-location (QCL) state: This may include one or more QCL type parameters corresponding to one or more reference signals (RS). The QCL type parameters may include one or more of the following: Doppler shift, Doppler spread, average delay, delay spread, average gain, and spatial Rx parameter.

[0072] The types of QCL states can include QCL Type A, QCL Type B, QCL Type C, and QCL Type D.

[0073] QCL type A can include Doppler shift, Doppler spread, average delay, and / or delay spread. QCL type A provides a comprehensive description of the target channel and can be used for channel demodulation.

[0074] QCL type B may include Doppler frequency shift and / or Doppler spread.

[0075] QCL type C may include Doppler shift and / or average delay.

[0076] QCL type D may include spatial reception parameters, which can also be called spatial Rx parameters and can be used for terminal reception beams.

[0077] 2. Spatial Relationship Status: This can include one or more reference signals (RS). The spatial relationship status can be used to specify the spatial relationship between the target reference signal RS or the target channel and one or more RSs.

[0078] In some embodiments, the spatial relationship state can correspond to multiple descriptions, such as beam, beam state, spatial parameters, spatial filters, precoding, higher layer parameters, QCL state, transmission configuration indicator (TCI) state, spatial relationship information and / or spatial relationship information state, etc., which are not limited in the embodiments of this application.

[0079] In some embodiments, "specification" can also be understood as an instruction, communication, or representation, and this application does not limit this.

[0080] In some embodiments, a spatial filter may correspond to the viewpoint of a wireless communication device and / or a wireless communication node. A spatial filter may refer to a spatial domain filter and / or other filters.

[0081] In some embodiments, high-level parameters may include spatialRelationInfo and / or other parameters.

[0082] In some embodiments, the RS may include a channel state information reference signaling (CSI-RS), a synchronization signal block (SSB) (or SS / PBCH), a demodulation reference signal (DMRS), a sounding reference signal (SRS), a physical random access channel (PRACH), and / or other signals / channels. The RS may also include at least one of a downlink reference signal (DL RS) and / or an uplink reference signal (UL RS).

[0083] In some embodiments, DL RS may include at least one of the following: CSI-RS, SSB and / or DMRS (e.g., DL DMRS).

[0084] In some embodiments, the UL RS may include at least one of the following: SRS, DMRS (e.g., UL DMRS) and / or PRACH.

[0085] In some embodiments, the UL signal may include PUCCH, PUSCH, SRS and / or other channels / signals.

[0086] In some embodiments, the DL signal may include PDCCH, PDSCH, CSI-RS and / or other channels / signals.

[0087] In some embodiments, the spatial relationship state can support beam indication of one or more types of channels and / or signals. In some scenarios, the TCI state can also be referred to as the beam state.

[0088] For example, QCL and / or TCI states can support beam indication of downlink (DL) control channels, DL data channels, and / or reference signals.

[0089] The DL control channel may include the physical downlink control channel (PDCCH) and / or other channels; the DL data channel may include the physical downlink shared channel (PDSCH) and / or other channels; and the reference signal may include CSI-RS and / or other types of signals.

[0090] For example, higher-layer parameters, TCI status, and / or other information can support beam indication for uplink (UL) control channels, reference signals, and / or other types of channels / signals. For UL data channels, beam indication can be achieved by mapping one or more ports of the UL data channel, and / or one or more SRS resources.

[0091] The UL control channel may include the physical uplink control channel (PUCCH) and / or other channels; the UL data channel may include the physical uplink shared channel (PUSCH) and / or other channels; and the reference signal may include the SRS.

[0092] A wireless communication node can indicate / designate one or more SRS resources. Therefore, beam configurations for UL data channels or other channels can be obtained using spatial relationship information. Spatial relationship information can be associated with ports of the UL data channel and / or one or more SRS resources. The wireless communication node can include ground terminals, base stations, gNBs, eNBs, or serving nodes, etc.

[0093] 3. Beam:

[0094] Transmit beam (Tx beam): can reference QCL state, TCI state, spatial relationship state, DL reference signal, UL reference signal, Tx spatial filter, and / or Tx precoding, etc.

[0095] Receive beam (Rx beam): Refer to QCL status, TCI status, spatial relationship status, spatial filter, Rx spatial filter, and / or Rx precoding, etc.

[0096] Beam identifier (ID): can refer to QCL state index, TCI state index, spatial relationship state index, reference signal index, spatial filter index, precoding index and / or other indexes, etc.

[0097] To facilitate understanding of the embodiments of this application, the following description is provided in conjunction with... Figure 1 The communication system applicable to the embodiments of this application will be described in detail.

[0098] Figure 1 This is a schematic diagram of a communication system 100 used in an embodiment of this application. The communication system 100 may include at least one network device, such as... Figure 1 The network device 110 shown; the communication system 100 may also include at least one terminal device, such as Figure 1 The terminal device 120 is shown. The network device 110 and the terminal device 120 can communicate via a wireless link. In one possible scenario, the network device 110 can act as a transmitter, and the terminal device 120 can act as a receiver, with the network device 110 sending signals to the terminal device 120; in another possible scenario, the network device 110 can act as a receiver, and the terminal device 120 can act as a transmitter, with the terminal device 120 sending signals to the network device 110.

[0099] Optionally, to enable information transmission with terminal device 120, network device 110 may include a communication module and a transceiver antenna.

[0100] It should be noted that, Figure 1An exemplary network device 110 and a terminal device 120 are shown. The communication system 100 may also include multiple network devices and / or multiple terminal devices.

[0101] Furthermore, the network device 110 in the communication system 100 can also be replaced by other types of network devices such as satellites, and the terminal device 120 can also be other types of terminal devices such as tablet computers and smart bracelets. This application embodiment does not limit this.

[0102] Optionally, when the network device 110 is a satellite, depending on its orbital altitude, the network device 110 can be any of the following: a geostationary earth orbit (GEO) satellite, also known as a synchronous orbit satellite or high-orbit satellite; a medium earth orbit (MEO) satellite, also simply referred to as a medium orbit satellite; and a low earth orbit (LEO) satellite, also simply referred to as a low orbit satellite. Furthermore, multiple terminal devices within the coverage area of ​​the network device 110 can use the network device 110 as a relay for communication.

[0103] The aforementioned communication devices, such as Figure 1 The network device 110 or terminal device 120 can be configured with multiple antennas. These multiple antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Additionally, each communication device also includes a transmitter chain and a receiver chain, which, as will be understood by those skilled in the art, may include multiple components (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, or antennas) related to signal transmission and reception. Therefore, network device 110 and terminal device 120 can communicate via multi-antenna technology.

[0104] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, but the embodiments of this application are not limited thereto.

[0105] It should be understood that the method provided in this application embodiment can be applied to various communication systems, including 5G New Radio (NR) systems. Figure 1 The communication system 100 shown is merely an example. This application does not limit the specific architecture of the applicable system, nor does it limit the number and form of the various devices included in each communication system.

[0106] In some embodiments, in systems such as 5G New Radio, mobile communication methods or programs may use analog beamforming technology. Analog beamforming technology can improve signal coverage and signal quality by controlling the direction, shape, and size of the transmitter's transmitted beam, thereby enhancing the robustness of high-frequency communication and / or processing.

[0107] Channel state information (CSS) reports are reports carrying channel state information that terminal devices send back to network devices. In other words, terminal devices can use CSS reports to provide network devices with information about the state of the channel they are in. Network devices can perform downlink scheduling based on CSS reports, enabling the communication system to adapt to current channel conditions. In some scenarios, CSS reports are also called beamforming reports, and network devices are also referred to as the network side.

[0108] In some implementations, the terminal device can feed back channel state information according to the measurement resources and channel state information report content configured on the network side. In some embodiments, the measurement resources can also be referred to as reference signals, which can be used to acquire channel state information. Furthermore, the terminal device can determine the channel state information report based on the reference signals.

[0109] The channel state information report may include a reference signal index, which may indirectly point to a measurement resource. Therefore, it is necessary to define the relationship between the reference signal index and the measurement resource configuration method.

[0110] In view of this, this application provides a communication method in which, when a terminal device determines a channel state information report, the measurement resource configuration method used by the terminal device can be defined by reference signal indexes. The channel state information report may include measurement results of N reference signals and M reference signal indices, where the measurement results of the M reference signals correspond to the M reference signal indices. This reduces the overhead of information resources when sending the channel state information report.

[0111] The embodiments shown in this application illustrate the communication method provided by this application from the perspective of device interaction. The specific forms and numbers of the devices shown are merely examples and should not be construed as limiting the implementation of the method provided in this application. Below, using network devices and terminal devices as examples, the communication method of the embodiments of this application will be described in detail.

[0112] It should be understood that a terminal device can be the terminal device itself, a chip, chip system, or processor that supports the communication methods of the terminal device, or a logic module or software that can implement all or part of the terminal device. A network device can be the network device itself, a chip, chip system, or processor that supports the communication methods of the network device, or a logic module or software that can implement all or part of the network device.

[0113] In some embodiments, the radio resource control (RRC) layer can be configured with one or more spatial relationship states, each of which can be uniquely identified by an index. Spatial relationship states can be used to indicate spatial relationship information. One spatial relationship state can indicate two QCL types, where the first QCL type includes at least one of QCL type A, QCL type B, and QCL type C; and the second QCL type can be QCL type D.

[0114] Furthermore, each QCL type D can be associated with a reference signal, which can be used to indicate the spatial relationship between the target signal / channel and one or more reference signals, such as spatial reception parameters. The type of the reference signal can include one or more of the following:

[0115] (1) SSB type reference signal, which can be used to obtain channel state information or measurement results including: reference signal received power (RSRP), and / or signal-to-interference plus noise ratio (SINR).

[0116] (2) Reference signal for beam management, which can be used to obtain channel state information or measurement results including RSRP and / or SINR.

[0117] (3) Reference signal for channel state information (RS), the channel state information that can be obtained by this type of reference signal includes one or more of the following: RS indicator, rank indicator, channel quality indicator, precoding matrix indicator.

[0118] (4) Tracking RS: This type of reference signal is generally used for time and frequency synchronization, but not for channel state information acquisition.

[0119] Furthermore, the terminal device can also receive a control element (CE) activation command from the media access control (MAC) layer to activate one or more spatial relationship states, which belong to one or more spatial relationship states configured by RRC. The control element of the media access control layer can also be referred to as a MAC CE.

[0120] Furthermore, the terminal device can also receive DCI commands, which can indicate one of one or more spatial relationship states activated by the MAC CE. This indicated spatial relationship state can be called the indicated spatial relationship state or the indicated TCI state.

[0121] Furthermore, if the MAC CE activates only one spatial relationship state, this activated spatial relationship state can also be called an indicator spatial relationship state. The QCL type obtained from the reference signal associated with this indicator spatial relationship state can be used to indicate the reception and demodulation of various target channels or target signals.

[0122] Figure 2 A flowchart illustrating a communication method provided in an embodiment of this application. The communication method includes:

[0123] S201. The terminal device receives the configuration measurement resources from the network, and correspondingly, the network device configures the measurement resources to the terminal device.

[0124] In this embodiment of the application, before determining the channel state information report, the terminal device may receive measurement resources configured by the network device.

[0125] The measurement resources may include a first measurement resource and / or a second measurement resource.

[0126] The first measurement resource may include one or more of the following configurations:

[0127] First measurement resource configuration method one: The first measurement resource is at least one set of reference signals configured in the RRC message. The set of reference signals can be configured with one or more reference signals, and each reference signal can be associated with an index information.

[0128] The second method for configuring the first measurement resource is as follows: The first measurement resource is at least one set of reference signals configured in the MAC CE message. The set of reference signals can be configured with one or more reference signals, and each reference signal can be associated with an index information.

[0129] The third method for configuring the first measurement resource is to determine the first measurement resource based on the reference signal associated with the spatial relationship status configured in the RRC message.

[0130] The first measurement resource configuration method four: determine the first measurement resource based on the reference signal associated with the spatial relationship state activated by MAC CE.

[0131] The second measurement resource may include one or more of the following configuration methods:

[0132] Second measurement resource configuration method one: Determine the second measurement resource based on the reference signal associated with the indicated TCI state.

[0133] Second measurement resource configuration method two: First, determine the fifth reference signal associated with the spatial relationship state, and then determine the second measurement resource based on the fourth reference signal associated with the spatial relationship state of the fifth reference signal.

[0134] Second measurement resource configuration method three: Determine whether the second measurement resource is determined according to second measurement resource configuration method one or second measurement resource configuration method two by using a predefined method or base station indication method.

[0135] S202. The terminal device sends a channel state information report to the network device. Appropriately, the network device can receive the channel state information report.

[0136] The channel state information report includes the measurement results of N reference signals and M reference signal indices. The measurement results of the M reference signals in the N reference signal measurement results correspond to the M reference signal indices. N and M are both positive integers, and M is less than or equal to N.

[0137] In this embodiment of the application, the terminal device may determine the channel state information report before sending the channel state information report.

[0138] It should be understood that when M equals N, the measurement results of N reference signals in the channel state information report all have corresponding reference signal indices. When M is less than N, the measurement results of M reference signals in the channel state information report all have corresponding reference signal indices, while the measurement results of (NM) reference signals do not have corresponding reference signal indices.

[0139] Optional, in Figure 2 Based on the corresponding embodiments, the reference signals indicated by the M reference signal indices may belong to the first reference signal, which may include the reference signal associated with the first spatial relationship state.

[0140] In this embodiment of the application, the first reference signal can be understood as the reference signal with a reference signal index in the channel state information report.

[0141] The definition of the first spatial relationship state can be found in the relevant descriptions of the spatial relationship states above. For example, the first spatial relationship state may include the TCI state, etc., which will not be elaborated further.

[0142] Optionally, the first spatial relationship state can be used to indicate the spatial relationship state of downlink signal reception, or the first spatial relationship state can be used to indicate the spatial relationship state of uplink signal transmission, or the first spatial relationship state can be used to simultaneously indicate the spatial relationship state of downlink signal reception and uplink signal transmission.

[0143] It should be understood that each first spatial relationship state can be associated with a first reference signal, and each first spatial relationship state has a corresponding index. Each reference signal index in the channel state information report can indicate the index corresponding to a certain first spatial relationship state, thereby determining the first reference signal associated with that first spatial relationship state.

[0144] Optional, in Figure 2 Based on the corresponding embodiments, the first spatial relationship state includes the spatial relationship state configured by Radio Resource Control (RRC) and / or the spatial relationship state activated by the control element MAC CE of the Media Access Control (MAC) layer.

[0145] In this embodiment of the application, the reference signal associated with the spatial relationship state configured by the Radio Resource Control (RRC) can correspond to the reference signal configured in the first measurement resource configuration mode three. Therefore, the first reference signal indicated by the reference signal index can be related to the spatial relationship state.

[0146] In a possible implementation 1, the terminal device may determine the first reference signal based on the first measurement resource configuration method three.

[0147] For example, consider a network device configured with A spatial relationship states at the RRC layer.

[0148] Since each spatial relationship state can be associated with a first reference signal, and each first reference signal can correspond to a reference signal index, there is a correspondence between the reference signal index and the spatial relationship index in the channel state information report. For example, the larger the spatial relationship index value, the larger the reference signal index value. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to A.

[0149] Thus, the overhead for each reference signal index in the channel state information report can be... Bits, i.e., bit overhead, can be rounded up from log2(A).

[0150] For example, when the reference signal index is 0, it indicates the reference signal associated with the spatial relationship state with index 0;

[0151] When the reference signal index is 1, it indicates the reference signal associated with the spatial relationship state with index 1;

[0152] Similarly, when the reference signal index is A-1, it indicates the reference signal associated with the spatial relationship state at index A-1.

[0153] Furthermore, for each spatial relationship state, the network device can also indicate in the RRC message whether the reference signal associated with that spatial relationship state belongs to the first measurement resource. In this case, although the network device configures A spatial relationship states, the total number of reference signals contained in the first measurement resource may be less than A; for example, the actual first measurement resource contains a total of F reference signals. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to F.

[0154] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be rounded up from log2(F).

[0155] For example, A = 16, F = 14, where the reference signal associated with the spatial relationship state with index 1 and the reference signal associated with the spatial relationship state with index 3, both of which do not belong to the first measurement resource, then:

[0156] When the reference signal index is 0, it indicates the reference signal associated with the spatial relationship state at index 0;

[0157] When the reference signal index is 1, it indicates the reference signal associated with the spatial relationship state at index 2;

[0158] When the reference signal index is 2, it indicates the reference signal associated with the spatial relationship state at index 4;

[0159] When the reference signal index is 3, it indicates the reference signal associated with the spatial relationship state at index 5;

[0160] When the reference signal index is 4, it indicates the reference signal associated with the spatial relationship state at index 6;

[0161] Similarly, when the reference signal index is 13, it indicates the reference signal associated with the spatial relationship state at index 15.

[0162] In this way, the terminal device does not need to find the first measurement resource that meets the conditions, thereby reducing the complexity of the terminal device implementation.

[0163] In this embodiment of the application, the reference signal associated with the spatial relationship state activated by the control element MAC CE of the media access control layer can correspond to the reference signal configured in the first measurement resource configuration mode four. Therefore, the first reference signal indicated by the reference signal index can be related to the spatial relationship state.

[0164] In a possible implementation 2, the terminal device may determine the first reference signal based on the first measurement resource configuration method four.

[0165] For example, consider a network device that configures A spatial relationship states at the RRC layer, from which the MAC CE activates B spatial relationship states.

[0166] It should be understood that each active spatial relationship state can be associated with a first reference signal, and each first reference signal can correspond to a reference signal index. Therefore, in the channel state information report, there is a correspondence between the reference signal index and the index of the active spatial relationship (or the activation order of the spatial relationship). For example, the larger the index value of the active spatial relationship, the larger the index value of the reference signal. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to B.

[0167] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be rounded up from log2(B).

[0168] For example, when the reference signal index is 0, it indicates the reference signal associated with the first activated spatial relation state;

[0169] When the reference signal index is 1, it indicates the reference signal associated with the second active spatial relationship state;

[0170] Similarly, when the reference signal index is B-1, it indicates the reference signal associated with the Bth activated spatial relation state.

[0171] Furthermore, for each spatial relationship state, the network device can also indicate in the RRC message whether the reference signal associated with that spatial relationship state belongs to the first measurement resource. In this case, although the network device activates B spatial relationship states through MAC CE, the total number of reference signals contained in the first measurement resource may be less than B.

[0172] Furthermore, for each activated spatial relationship state, the network device can also indicate in the MAC CE whether the reference signal associated with that activated spatial relationship state belongs to the first measurement resource. In this case, although the network device activates B spatial relationship states through the MAC CE, the total number of reference signals contained in the first measurement resource may be less than B.

[0173] Optional, in Figure 2Based on the corresponding embodiments, the first reference signal includes a reference signal associated with the spatial receiving parameters in the first spatial relationship state. In a possible implementation, the first reference signal is determined in the following way: the second QCL type in each first spatial relationship state can be QCL type D, which can include spatial receiving parameters, and the reference signal associated with the spatial receiving parameters can be the first reference signal.

[0174] Optional, in Figure 2 Based on the corresponding embodiments, the first reference signal includes one or more of the following: a reference signal of type Synchronization Signal Block (SSB) and a reference signal for beam management.

[0175] In a possible implementation 3, the terminal device can determine the first reference signal according to the first measurement resource configuration method 3.

[0176] For example, consider a network device configured with A spatial relationship states at the RRC layer.

[0177] Each spatial relationship state can be associated with a first reference signal. If the first reference signal satisfies a first condition, the spatial relationship state can have a corresponding reference signal index in the channel state information report. In other words, the first reference signal indicated by the reference signal index can be related to the spatial relationship state that satisfies the first condition.

[0178] The first condition may include one or more of the following:

[0179] The first reference signal is an SSB type reference signal;

[0180] The first reference signal is used for beam management.

[0181] Assume there are K reference signals that satisfy the first condition, which means there are K spatial relationship states that satisfy the first condition, and (AK) spatial relationship states that do not satisfy the first condition. Then, in the channel state information report, there is a correspondence between the reference signal index and the spatial relationship index; for example, the larger the spatial relationship index value, the larger the reference signal index value. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to K.

[0182] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be rounded up from log2(K).

[0183] For example, if A = 16, and the spatial relationship between indices 1 and 3 does not satisfy the first condition, then:

[0184] When the reference signal index is 0, it indicates the reference signal associated with the spatial relationship state with index 0;

[0185] When the reference signal index is 1, it indicates the reference signal associated with the spatial relationship state at index 2;

[0186] When the reference signal index is 2, it indicates the reference signal associated with the spatial relationship state at index 4;

[0187] When the reference signal index is 3, it indicates the reference signal associated with the spatial relationship state at index 5;

[0188] When the reference signal index is 4, it indicates the reference signal associated with the spatial relationship state at index 6;

[0189] Similarly, when the reference signal index is 13, it indicates the reference signal associated with the spatial relationship state at index 15.

[0190] In a possible implementation 4, the terminal device can determine the first reference signal according to the first measurement resource configuration method four.

[0191] For example, consider a network device that configures A spatial relationship states at the RRC layer, from which the MAC CE activates B spatial relationship states.

[0192] Each active spatial relationship state can be associated with a first reference signal. If the first reference signal satisfies the second condition, the active spatial relationship state can have a corresponding reference signal index in the channel state information report. In other words, the first reference signal indicated by the reference signal index can be related to the active spatial relationship state that satisfies the second condition.

[0193] The second condition may include one or more of the following:

[0194] The first reference signal is an SSB type reference signal;

[0195] The first reference signal is used for beam management.

[0196] Assume there are L first reference signals satisfying the second condition, meaning there are L active spatial relationship states satisfying the second condition, and (BL) active spatial relationship states not satisfying the second condition. Then, in the channel state information report, there is a correspondence between the reference signal index and the index of the active spatial relationship (or the activation order of the spatial relationship). For example, the larger the index value of the active spatial relationship, the larger the index value of the reference signal. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to L.

[0197] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be rounded up from log2(L).

[0198] For example, if A = 16 and B = 8, and neither the second nor the fourth activated spatial relation state satisfies the second condition, then:

[0199] When the reference signal index is 0, it indicates the reference signal associated with the first activated spatial relation state;

[0200] When the reference signal index is 1, it indicates the reference signal associated with the third active spatial relation state;

[0201] When the reference signal index is 2, it indicates the reference signal associated with the fifth active spatial relation state;

[0202] When the reference signal index is 3, it indicates the reference signal associated with the sixth active spatial relation state;

[0203] When the reference signal index is 4, it indicates the reference signal associated with the seventh active spatial relation state;

[0204] When the reference signal index is 5, it indicates the reference signal associated with the eighth active spatial relation state.

[0205] Optional, in Figure 2 Based on the corresponding embodiments, the reference signal of the synchronization signal block SSB type includes the reference signal associated with the second spatial relationship state of the second reference signal, the reference signal for beam management includes the reference signal associated with the second spatial relationship state of the second reference signal, and the second reference signal includes the reference signal associated with the spatial reception parameters in the first spatial relationship state.

[0206] In this embodiment, the second reference signal can be understood as the reference signal associated with the spatial reception parameters in the first spatial relationship state. In this case, the first reference signal may include the reference signal associated with the second spatial relationship state of the second reference signal.

[0207] The definition of the second spatial relationship state can be found in the relevant description of the spatial relationship state above. For example, the second spatial relationship state may include the TCI state, etc., which will not be elaborated further.

[0208] In a possible implementation 5, the terminal device may determine the first reference signal based on the first measurement resource configuration method three.

[0209] For example, consider a network device configured with A spatial relationship states at the RRC layer.

[0210] Each spatial relationship state can be associated with a first reference signal. If the first reference signal satisfies the third condition, the index of the spatial relationship state and the index of the reference signal will correspond in the channel state information report. In other words, the first reference signal indicated by the reference signal index can be related to a spatial relationship state that satisfies the third condition.

[0211] The third condition may include one or more of the following:

[0212] The first reference signal is the reference signal associated with the second spatial relationship state of the second reference signal. The first reference signal is an SSB type reference signal, and / or the first reference signal is a reference signal used for beam management; the second reference signal is a reference signal used for tracking (Tracking RS).

[0213] The first reference signal is a reference signal associated with the second spatial relationship state of the second reference signal, the first reference signal is an SSB type reference signal, and / or the first reference signal is a reference signal used for beam management; the second reference signal is a reference signal used to obtain channel state information.

[0214] It should be understood that since each spatial relationship state can be associated with a first reference signal, and each first reference signal that satisfies the third condition can correspond to a reference signal index, there are two scenarios in the channel state information report: one where all A first reference signals satisfy the third condition (Scenario 1), and another where some of the A first reference signals partially satisfy the third condition (Scenario 2).

[0215] Scenario 1: If all A first reference signals satisfy the third condition, then in the channel state information report, there is a correspondence between the reference signal index and the spatial state relation index. For example, the larger the spatial state relation index value, the larger the reference signal index value. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to A.

[0216] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be rounded up from log2(A).

[0217] For example, when the reference signal index is 0, it indicates the reference signal associated with the spatial relationship state at index 0;

[0218] When the reference signal index is 1, it indicates the reference signal associated with the spatial relationship state with index 1;

[0219] Similarly, when the reference signal index is A-1, it indicates the reference signal associated with the spatial relationship state at index A-1.

[0220] Scenario 2: If R out of A first reference signals satisfy the third condition, meaning there are R first reference signals satisfying the third condition, and R spatial relationship states satisfying the third condition, and (AR) spatial relationship states not satisfying the third condition, then in the channel state information report, there is a correspondence between the reference signal index and the spatial relationship index. For example, the larger the spatial relationship index value, the larger the reference signal index value. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to R.

[0221] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be rounded up from log2(R).

[0222] For example, if A = 16, and neither the spatial relation state with index 1 nor the spatial relation state with index 3 satisfies the third condition, then:

[0223] When the reference signal index is 0, it indicates the reference signal associated with the spatial relationship state at index 0;

[0224] When the reference signal index is 1, it indicates the reference signal associated with the spatial relationship state at index 2;

[0225] When the reference signal index is 2, it indicates the reference signal associated with the spatial relationship state at index 4;

[0226] When the reference signal index is 3, it indicates the reference signal associated with the spatial relationship state at index 5;

[0227] When the reference signal index is 4, it indicates the reference signal associated with the spatial relationship state at index 6;

[0228] Similarly, when the reference signal index is 13, it indicates the reference signal associated with the spatial relationship state at index 15.

[0229] In a possible implementation 6, the terminal device may determine the first reference signal based on the first measurement resource configuration method four.

[0230] For example, consider a network device that configures A spatial relationship states at the RRC layer, from which the MAC CE activates B spatial relationship states.

[0231] Each activated spatial relationship state can be associated with a first reference signal. If the first reference signal satisfies the fourth condition, the activated spatial relationship state can be associated with a reference signal index in the channel state information report.

[0232] The fourth condition may include one or more of the following:

[0233] The first reference signal is the reference signal associated with the second spatial relationship state of the second reference signal. The first reference signal is an SSB type reference signal, and / or the first reference signal is a reference signal used for beam management; the second reference signal is a reference signal used for tracking (Tracking RS).

[0234] The first reference signal is a reference signal associated with the second spatial relationship state of the second reference signal, the first reference signal is an SSB type reference signal, and / or the first reference signal is a reference signal used for beam management; the second reference signal is a reference signal used to obtain channel state information.

[0235] It should be understood that since each active spatial relationship state can be associated with a first reference signal, and each first reference signal satisfying the fourth condition can correspond to a reference signal index, the first reference signal indicated by the reference signal index can be related to an active spatial relationship state that satisfies the fourth condition. Therefore, in the channel state information report, there are cases where all B active spatial relationship states satisfy the fourth condition (Case 3) and cases where some of the B active spatial relationship states partially satisfy the fourth condition (Case 4).

[0236] Scenario 3: If all B first reference signals satisfy the fourth condition, then in the channel state information report, there is a correspondence between the reference signal index and the index of the active spatial state relationship (or the activation order of the spatial state relationship). For example, the larger the index value of the active spatial state relationship, the larger the index value of the reference signal. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to B.

[0237] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be rounded up from log2(B).

[0238] For example, when the reference signal index is 0, it indicates the reference signal associated with the first activated spatial relationship state;

[0239] When the reference signal index is 1, it indicates the reference signal associated with the second active spatial relationship state;

[0240] Similarly, when the reference signal index is B-1, it indicates the reference signal associated with the Bth activated spatial relation state.

[0241] Scenario 4: If S out of B first reference signals satisfy the fourth condition, meaning there are S first reference signals satisfying the fourth condition, and S active spatial relationship states satisfying the fourth condition, and (BS) active spatial relationship states not satisfying the fourth condition, then in the channel state information report, there is a correspondence between the reference signal index and the index of the active spatial relationship (or the activation order of the spatial relationship). For example, the larger the index value of the active spatial relationship, the larger the index value of the reference signal. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to S.

[0242] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be rounded up from log2(S).

[0243] For example, if B = 8, and neither the second nor the fourth activated spatial relation state satisfies the fourth condition, then:

[0244] When the reference signal index is 0, it indicates the reference signal associated with the first activated spatial relation state;

[0245] When the reference signal index is 1, it indicates the reference signal associated with the third active spatial relation state;

[0246] When the reference signal index is 2, it indicates the reference signal associated with the fifth activated spatial relation state;

[0247] When the reference signal index is 3, it indicates the reference signal associated with the sixth active spatial relation state;

[0248] When the reference signal index is 4, it indicates the reference signal associated with the seventh active spatial relation state;

[0249] When the reference signal index is 5, it indicates the reference signal associated with the eighth active spatial relation state.

[0250] In another possible implementation, the first reference signal associated with the spatial relationship state that the terminal device does not want to activate or the base station does not allow to activate belongs to the following two types of reference signals:

[0251] Reference signal used for tracking;

[0252] Reference signals used to obtain channel state information.

[0253] Furthermore, the first reference signal can be determined as follows: the second QCL type in each active spatial relation state is usually QCL type D, and the reference signal associated with QCL type D is the first reference signal.

[0254] In another possible implementation, the terminal device wishes to activate a spatial relationship state association whose first reference signal belongs to one of the following two types of reference signals:

[0255] SSB type reference signal;

[0256] Reference signal used for beam management.

[0257] Furthermore, the first reference signal is determined as follows: the second QCL type in each activated spatial relation state is typically QCL type D, and the reference signal associated with QCL type D is the first reference signal.

[0258] In this way, the terminal device does not need to find the first measurement resource that meets the conditions, thereby reducing the complexity of the terminal implementation.

[0259] Optional, in Figure 2 Based on the corresponding embodiments, the larger the index value of the spatial relationship state configured by RRC, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state configured by RRC; and / or, the larger the index value of the spatial relationship state activated by MAC CE, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state activated by MAC CE.

[0260] In this embodiment of the application, the larger the index value of the spatial relationship status configured by RRC, the larger the index value of the first reference signal in the channel state information report. The correspondence of the index value can be referred to the relevant descriptions in possible implementation 1, possible implementation 3 and possible implementation 5, which will not be repeated here.

[0261] The larger the index value of the spatial relationship state activated by MAC CE, the larger the index value of the first reference signal in the channel state information report. The correspondence of this index value can be referred to the relevant descriptions in possible implementation methods 2, 4 and 6, which will not be repeated here.

[0262] Optional, in Figure 2 Based on the corresponding embodiment, the reference signals indicated by the M reference signal indices belong to the third reference signal, wherein the third reference signal includes the reference signals in the reference signal set configured by RRC, and / or the reference signals in the reference signal set configured by MACCE.

[0263] In this embodiment of the application, the reference signals in the reference signal set configured by RRC can correspond to the reference signals configured in the first measurement resource configuration method 1. Therefore, the third reference signal indicated by the reference signal index can be related to the reference signals in the reference signal set configured by RRC.

[0264] The reference signals in the reference signal set configured by MAC CE can correspond to the reference signals configured in the first measurement resource configuration method two. Therefore, the third reference signal indicated by the reference signal index can be related to the reference signals in the reference signal set configured by MAC CE.

[0265] It should be understood that the first reference signal may include the third reference signal, and correspondingly, the reference signals indicated by the M reference signal indices belong to the first reference signal. The first reference signal may not include the third reference signal, and correspondingly, the reference signals indicated by the M reference signal indices include both the first and third reference signals.

[0266] The terminal device can simultaneously determine the first measurement resource through multiple first measurement resource configuration methods. For example, the terminal device can jointly determine the first measurement resource through a first configuration and a second configuration, thereby determining the channel state information report.

[0267] For example, the method of determining the first measurement resource by jointly using the first configuration and the second configuration may include:

[0268] The first configuration is the first measurement resource configuration method one, and the second configuration is the first measurement resource configuration method three;

[0269] Alternatively, the first configuration is the first measurement resource configuration method one, and the second configuration is the first measurement resource configuration method four;

[0270] Alternatively, the first configuration can be the first measurement resource configuration method two, and the second configuration can be the first measurement resource configuration method three;

[0271] Alternatively, the first configuration can be the first measurement resource configuration method two, and the second configuration can be the first measurement resource configuration method four.

[0272] It should be understood that since both the first measurement resource configuration method three and the first measurement resource configuration method four use implicit spatial relationship states to determine the first measurement resources, there may be some limitations, resulting in a relatively small number of reference signals determined by the terminal device. Therefore, the first measurement resource configuration method one can be combined with the first measurement resource configuration method three, or the first measurement resource configuration method one can be combined with the first measurement resource configuration method four, or the first measurement resource configuration method two can be combined with the first measurement resource configuration method three, or the first measurement resource configuration method two can be combined with the first measurement resource configuration method four.

[0273] In this way, by combining the first configuration and the second configuration, the first measurement resource can be determined together, thereby enabling the terminal device to determine a greater number of reference signals.

[0274] In possible implementation 7, the first configuration includes P reference signals and the second configuration includes Q spatial relationship states as an example.

[0275] Each spatial relationship state can be associated with a first reference signal, and each first reference signal can correspond to a reference signal index. Therefore, in the channel state information report, there is a correspondence between the reference signal index and the spatial relationship index; for example, the larger the spatial relationship index value, the larger the reference signal index value. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to P+Q.

[0276] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be the floor of log2(P+Q).

[0277] It should be understood that when determining the indices of (P+Q) reference signals, it is necessary to determine the priority of the P reference signals in the first configuration and the Q reference signals in the second configuration.

[0278] For example, if the P reference signals in the first configuration have higher priority, that is, the P reference signals are ordered earlier, or the corresponding index values ​​of the reference signals are larger, then the reference signals indicated by the indices of the (P+Q) reference signals can be as follows:

[0279] When the reference signal index is 0, it indicates the first reference signal in the first configuration, or it indicates the reference signal with the smallest index value in the first configuration;

[0280] When the reference signal index is 1, it indicates the second reference signal in the first configuration, or it indicates the reference signal with the second smallest index value in the first configuration;

[0281] Similarly, when the reference signal index is P-1, it indicates the Pth reference signal in the first configuration, or it indicates the reference signal with the highest index value in the first configuration.

[0282] When the reference signal index is P, it indicates the reference signal associated with the first spatial relationship state, or it indicates the reference signal associated with the spatial relationship state with the smallest index value.

[0283] When the reference signal index is P+1, it indicates the reference signal associated with the second spatial relationship state, or it indicates the reference signal associated with the spatial relationship state with the second smallest index value.

[0284] Similarly, when the reference signal index is P+Q-1, it indicates the reference signal associated with the Qth spatial relationship state, or the reference signal associated with the spatial relationship state with the largest index value.

[0285] It should be understood that since the second configuration is relatively dynamic, there may be situations where the first configuration has been configured but the second configuration has not. Therefore, if the P reference signals in the first configuration have higher priority, the relatively dynamic second configuration can be placed later, thereby facilitating data parsing and improving efficiency.

[0286] For example, if the Q reference signals in the second configuration have higher priority, that is, the Q reference signals are ordered earlier or the corresponding index values ​​of the reference signals are larger, then the reference signals indicated by the indices of the (P+Q) reference signals can be as follows:

[0287] When the reference signal index is 0, it indicates the reference signal associated with the first spatial relationship state, or it indicates the reference signal associated with the spatial relationship state with the smallest index value.

[0288] When the reference signal index is 1, it indicates the reference signal associated with the second spatial relationship state, or it indicates the reference signal associated with the spatial relationship state with the second smallest index value.

[0289] Similarly, when the reference signal index is Q-1, it indicates the reference signal associated with the Qth spatial relationship state, or it indicates the reference signal associated with the spatial relationship state with the largest index value.

[0290] When the reference signal index is Q, it indicates the first reference signal in the first configuration, or it indicates the reference signal with the smallest index value in the first configuration;

[0291] When the reference signal index is Q+1, it indicates the second reference signal in the first configuration, or it indicates the reference signal with the second smallest index value in the first configuration;

[0292] Similarly, when the reference signal index is P+Q-1, it indicates the Pth reference signal in the first configuration, or the reference signal with the highest index value in the first configuration.

[0293] In possible implementation method 8, the first configuration includes P reference signals and the second configuration includes Q spatial relationship states as an example.

[0294] Each spatial relationship state can be associated with a first reference signal. When the spatial relationship state in the second configuration satisfies the fifth condition, the reference signal associated with the spatial relationship state in the second configuration can have a corresponding reference signal index in the channel state information report. The fifth condition can be the first, second, third, or fourth condition; this embodiment does not limit the specific conditions.

[0295] For example, if there are J spatial relationship states that satisfy the fifth condition in the second configuration, then in the channel state information report, there is a correspondence between the reference signal index and the spatial relationship index. For instance, the larger the spatial relationship index value, the larger the reference signal index value. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to P+J.

[0296] Thus, the overhead for each reference signal index in the channel state information report is... Bits, i.e., bit overhead, can be the floor of log2(P+J).

[0297] It should be understood that when determining the indices of (P+J) reference signals, it is necessary to determine the priority of the P reference signals in the first configuration and the J reference signals in the second configuration.

[0298] For example, if the P reference signals in the first configuration have higher priority, that is, the P reference signals are ordered earlier or the corresponding index values ​​of the reference signals are larger, then the reference signals indicated by the indices of the (P+J) reference signals can be as follows:

[0299] When the reference signal index is 0, it indicates the first reference signal in the first configuration, or it indicates the reference signal with the smallest index value in the first configuration;

[0300] When the reference signal index is 1, it indicates the second reference signal in the first configuration, or it indicates the reference signal with the second smallest index value in the first configuration;

[0301] Similarly, when the reference signal index is P-1, it indicates the Pth reference signal in the first configuration, or it indicates the reference signal with the highest index value in the first configuration.

[0302] When the reference signal index is P, it indicates the first reference signal that meets the conditions;

[0303] When the reference signal index is P+1, it indicates the second reference signal that meets the conditions;

[0304] Similarly, when the reference signal index is P+J-1, it indicates the Jth reference signal that meets the conditions.

[0305] For example, if the J reference signals in the second configuration have higher priority, that is, the J reference signals are ordered earlier, then the reference signals indicated by the (P+J) reference signal indices can be as follows:

[0306] When the reference signal index is 0, it indicates the first reference signal that meets the condition;

[0307] When the reference signal index is 1, it indicates the second reference signal that meets the condition;

[0308] Similarly, when the reference signal index is J-1, it indicates the Jth reference signal that meets the condition;

[0309] When the reference signal index is J, it indicates the first reference signal in the first configuration, or it indicates the reference signal with the smallest index value in the first configuration;

[0310] When the reference signal index is J+1, it indicates the second reference signal in the first configuration, or it indicates the reference signal with the second smallest index value in the first configuration;

[0311] Similarly, when the reference signal index is P+J-1, it indicates the Pth reference signal in the first configuration, or the reference signal with the highest index value in the first configuration.

[0312] For example, if there are T spatial relationship states in the second configuration that do not satisfy the fifth condition, then in the channel state information report, there is a correspondence between the reference signal index and the spatial relationship index. For instance, the larger the spatial relationship index value, the larger the reference signal index value. In this case, the network device can indicate the number M of reference signal indices included in the channel state report, where M is less than or equal to (P+QT), that is, M reference signal indices can be understood as (P+QT) reference signal indices.

[0313] Thus, the overhead for each reference signal index in the channel state information report is...

[0314] Bits, i.e., bit overhead, can be the floor of log2(P+QT).

[0315] When determining the indices of (P+QT) reference signals, it is necessary to determine the priorities of the P reference signals in the first configuration and the (QT) reference signals in the second configuration.

[0316] For example, if the P reference signals in the first configuration have higher priority, that is, the P reference signals are ordered earlier or the corresponding index values ​​of the reference signals are larger, then the reference signals indicated by the indices of the (P+QT) reference signals can be as follows:

[0317] When the reference signal index is 0, it indicates the first reference signal in the first configuration, or it indicates the reference signal with the smallest index value in the first configuration;

[0318] When the reference signal index is 1, it indicates the second reference signal in the first configuration, or it indicates the reference signal with the second smallest index value in the first configuration;

[0319] Similarly, when the reference signal index is P-1, it indicates the Pth reference signal in the first configuration, or it indicates the reference signal with the highest index value in the first configuration.

[0320] When the reference signal index is P, it indicates the first reference signal that meets the conditions;

[0321] When the reference signal index is P+1, it indicates the second reference signal that meets the conditions;

[0322] Similarly, when the reference signal index is P+QT-1, it indicates the P+QTth reference signal that meets the conditions.

[0323] For example, if the (QT) reference signals in the second configuration have higher priority, that is, the (QT) reference signals are ordered earlier, then the reference signals indicated by the (P+QT) reference signal indices can be as follows:

[0324] When the reference signal index is 0, it indicates the first reference signal that meets the condition;

[0325] When the reference signal index is 1, it indicates the second reference signal that meets the condition;

[0326] Similarly, when the reference signal index is QT-1, it indicates the QTth reference signal that meets the condition;

[0327] When the reference signal index is QT, it indicates the first reference signal in the first configuration, or it indicates the reference signal with the smallest index value in the first configuration;

[0328] When the reference signal index is Q-T+1, it indicates the second reference signal in the first configuration, or it indicates the reference signal with the second smallest index value in the first configuration;

[0329] Similarly, when the reference signal index is P+QT-1, it indicates the Pth reference signal in the first configuration, or the reference signal with the highest index value in the first configuration.

[0330] Optional, in Figure 2Based on the corresponding embodiment, when determining the reference signal index, the priority of the third reference signal is greater than that of the reference signal associated with the first spatial relationship state.

[0331] In this embodiment, the third reference signal may include reference signals from the reference signal set configured by RRC and / or reference signals from the reference signal set configured by MAC CE. Therefore, the third reference signal may include reference signals configured in the first measurement resource configuration method one and / or reference signals configured in the first measurement resource configuration method two, that is, the third reference signal corresponds to the reference signal in the first configuration.

[0332] Since the first spatial relationship state can include the reference signal associated with the spatial relationship state configured by Radio Resource Control (RRC), and / or the reference signal associated with the spatial relationship state activated by the Media Access Control (MAC) control element CE, the first spatial relationship state can include the reference signal configured in the first measurement resource configuration mode three, and / or the reference signal configured in the first measurement resource configuration mode four, that is, the first spatial relationship state corresponds to the reference signal in the second configuration.

[0333] When determining the reference signal index, the priority of the third reference signal can be greater than that of the reference signal associated with the first spatial relationship state. For details, please refer to the relevant descriptions in possible implementation 7 and possible implementation 8, where the priority of the P reference signals in the first configuration is higher, and will not be repeated here.

[0334] Furthermore, the reference signal associated with the first spatial relationship state may have a higher priority than the third reference signal. For details, please refer to the descriptions in possible implementations 7 and 8 regarding the case where the Q reference signals in the second configuration have a higher priority; these will not be repeated here.

[0335] Optional, in Figure 2 Based on the corresponding embodiments, the larger the index value of the third reference signal in the reference signal set, the larger the index value of the third reference signal in the channel state information report; and / or, the larger the index value of the spatial relationship state configured by RRC, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state configured by RRC; and / or, the larger the index value of the spatial relationship state activated by MAC CE, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state activated by MAC CE.

[0336] In this embodiment of the application, the larger the index value of the third reference signal in the reference signal set, the larger the index value of the third reference signal in the channel state information report. The correspondence of the index values ​​can be referred to the relevant description of the first configuration including P reference signals in possible implementation 7, or the relevant description of the first configuration including P reference signals in possible implementation 8, which will not be repeated here.

[0337] The larger the index value of the spatial relationship state of the RRC configuration, the larger the index value of the first reference signal in the channel state information report. The correspondence of this index value can be referred to the relevant description of the Q reference signals in the second configuration of possible implementation 7, or the relevant description of the J reference signals in the second configuration of possible implementation 8, which will not be repeated here.

[0338] The larger the index value of the spatial relationship state activated by MAC CE, the larger the index value of the first reference signal in the channel state information report. The correspondence of this index value can be referred to the relevant description of the Q reference signals in the second configuration of possible implementation 7, or the relevant description of the J reference signals in the second configuration of possible implementation 8, which will not be repeated here.

[0339] Optional, in Figure 2 Based on the corresponding embodiment, the channel state information report also includes the measurement results of a fourth reference signal, which includes a reference signal associated with the spatial relationship state.

[0340] Optionally, the fourth reference signal can be understood as a reference signal that does not have a reference signal index in the channel state information report. Indicating spatial relationship status may include indicating TCI status.

[0341] It should be understood that in the channel state information report, since the network device can determine the spatial relationship status, i.e., the network device can determine which reference signal the second measurement resource is, the channel state information report can include an index of the fourth reference signal. However, the channel state information report can also include the measurement results of the fourth reference signal, such as RSRP and / or SINR. This reduces the overhead of the terminal device feeding back the channel state information report.

[0342] Optional, in Figure 2 Based on the corresponding embodiments, the reference signals associated with the spatial relationship status include one or more of the following: reference signals of the Synchronization Signal Block (SSB) type, and reference signals used for beam management.

[0343] Optionally, the spatial relationship states may include Y spatial relationship states, where Y > 1. In this case, the terminal device needs to indicate in the channel state information report which of the Y spatial relationship states the fourth reference signal is associated with. For example, when Y = 2, two spatial relationship states may be used to indicate the spatial relationships used by the terminal when transmitting signals to two network devices, or to indicate the spatial relationships used by the terminal when transmitting signals using two panels, or to indicate the spatial relationships used by the terminal when receiving signals using two panels, or to indicate the spatial relationships used by the terminal when receiving downlink signals and transmitting uplink signals.

[0344] In a possible implementation 9, the terminal device can determine the first reference signal according to the second measurement resource configuration method 1.

[0345] For example, if the fourth reference signal satisfies the sixth condition, the fourth reference signal belongs to the second measurement resource.

[0346] The sixth condition may include one or more of the following:

[0347] The fourth reference signal associated with the spatial relationship status is an SSB type reference signal;

[0348] The fourth reference signal associated with the spatial relationship status is a reference signal used for beam management.

[0349] Optional, in Figure 2 Based on the corresponding embodiments, the reference signal of the synchronization signal block SSB type includes the reference signal associated with the third spatial relationship state of the fifth reference signal, the reference signal for beam management includes the reference signal associated with the third spatial relationship state of the fifth reference signal, and the fifth reference signal includes the reference signal associated with the spatial reception parameters in the spatial relationship state.

[0350] In this embodiment, the fifth reference signal can be understood as a reference signal associated with the spatial reception parameters in the spatial relationship state. In this case, the fourth reference signal may include the reference signal associated with the third spatial relationship state of the fifth reference signal.

[0351] The definition of the third spatial relationship state can be found in the relevant description of the spatial relationship state above. For example, the third spatial relationship state may include the TCI state, etc., which will not be elaborated further.

[0352] In a possible implementation 10, the terminal device can determine the channel state information report according to the second measurement resource configuration method 2.

[0353] For example, if the fourth reference signal satisfies the seventh condition, the fourth reference signal belongs to the second measurement resource.

[0354] The seventh condition may include one or more of the following:

[0355] The fourth reference signal is the signal associated with the third spatial relationship state of the fifth reference signal, the fourth reference signal is an SSB type reference signal, and / or, the fourth reference signal is a reference signal used for beam management; the fifth reference signal includes a reference signal associated with the spatial relationship state, and the reference signal associated with the spatial relationship state includes a tracking reference signal.

[0356] The fourth reference signal is the signal associated with the third spatial relationship state of the fifth reference signal, the fourth reference signal is an SSB type reference signal, and / or, the fourth reference signal is a reference signal used for beam management; the fifth reference signal includes a reference signal associated with the spatial relationship state, and the reference signal associated with the spatial relationship state includes a reference signal used to obtain channel state information.

[0357] In possible implementation 11, the terminal device can determine the channel state information report according to the second measurement resource configuration method three.

[0358] For example, if the fourth reference signal satisfies the eighth condition, the fifth reference signal belongs to the second measurement resource.

[0359] The eighth condition may include one or more of the following:

[0360] The fifth reference signal associated with the spatial relationship state is a reference signal of the Synchronization Signal Block (SSB) type, and the reference signal associated with the third spatial relationship state of the fifth reference signal is a fourth reference signal, which may include one or more of the following: a reference signal of the Synchronization Signal Block (SSB) type, or a reference signal used for beam management.

[0361] And / or, the fifth reference signal associated with the spatial relationship state is a reference signal for beam management, and the reference signal associated with the third spatial relationship state of the fifth reference signal is a fourth reference signal, which may include one or more of the following: a reference signal of the Synchronization Signal Block (SSB) type, or a reference signal for beam management.

[0362] For example, if the eighth condition is met, the network device may indicate that the fourth reference signal belongs to the second measurement resource, or that the fifth reference signal belongs to the second measurement resource, which is not limited in the embodiments of this application.

[0363] In this way, network devices can more flexibly choose to use either the second measurement resource configuration method one or the second measurement resource configuration method two to determine the second measurement resource. On the one hand, since the fourth reference signal is a better match to the current channel characteristics, the network device can choose to use the fourth reference signal. On the other hand, since the fifth reference signal is closer to the original channel information, the network device can choose to use the fifth reference signal.

[0364] The indication from the network device can be an RRC message, which can include two states: one state indicates that the fourth reference signal belongs to the second measurement resource, and the other state indicates that the fifth reference signal belongs to the second measurement resource.

[0365] Optional, in Figure 2 Based on the corresponding embodiment, the index of the first reference signal is determined based on the most recently received spatial relationship state of the MAC CE activation, and the fourth reference signal is determined based on the most recently received indication spatial relationship state.

[0366] In this embodiment, the channel state information reports fed back by the terminal device at different times use different first and / or second measurement resources. This is because the MAC CE can dynamically update the active spatial relationship state, or the DCI can dynamically update the indicated spatial relationship state. In this case, the first and / or second measurement resources need to be determined based on the latest active spatial relationship state and the latest indicated spatial relationship state.

[0367] In possible implementation 12, such as Figure 3 As shown, taking the example of a terminal device sending two channel state information reports to a network device, the first channel state information report can be called the first channel state information report, and the second channel state information report can be called the second channel state information report.

[0368] The first measurement resource used in the first channel state information report can be determined based on the first MAC CE, and the first measurement resource used in the second channel state information report can be determined based on the second MAC CE.

[0369] Optional, in Figure 2 Based on the corresponding embodiment, in the channel state information report, the measurement results of the fourth reference signal are mapped with lower priority than the measurement results of the first reference signal.

[0370] In this embodiment, the fourth reference signal may include a reference signal associated with the spatial relationship state, and the fourth reference signal may include a reference signal configured by the second measurement resource configuration method. The first reference signal may include a reference signal configured by the first measurement resource configuration method.

[0371] The measurement results may include RSRP and / or SINR. For ease of description, the following explanation uses RSRP as an example. The implementation of SINR as a measurement result is similar and will not be repeated here.

[0372] It should be understood that the measurement results of the fourth reference signal can be found in a predefined location in the channel state information report.

[0373] For example, in the channel state information report, the measurement results of the fourth reference signal may be mapped with a lower priority than the measurement results of the first reference signal.

[0374] For example, the channel state information report includes channel state information for four reference signals, of which three reference signals are first reference signals belonging to the first measurement resource, and the other reference signal is the fourth reference signal belonging to the second measurement resource.

[0375] As shown in Table 1, the RSRP of the first reference signal has a higher priority than the measurement result of the fourth reference signal. That is, the RSRP of the second measurement resource is located after the RSRP of the first measurement resource, and the index corresponding to the second measurement resource may not be included in the channel state information report.

[0376] Table 1

[0377] First reference signal index Second reference signal index Third reference signal index The RSRP (RSRP of the first measurement resource) corresponding to the first reference signal index. The RSRP corresponding to the second reference signal index (RSRP of the first measurement resource). The RSRP (RSRP of the first measurement resource) corresponding to the third reference signal index. RSRP of the fourth reference signal (RSRP of the second measurement resource)

[0378] Furthermore, when determining the mapping priority of the measurement results of the reference signal, the priority of the measurement results of the fourth reference signal can be higher than that of the measurement results of the first reference signal.

[0379] For example, the channel state information report includes channel state information for four reference signals, of which three reference signals are first reference signals belonging to the first measurement resource, and the other reference signal is the fourth reference signal belonging to the second measurement resource.

[0380] As shown in Table 2, the RSRP of the fourth reference signal has a higher priority than the measurement result of the first reference signal. That is, the RSRP of the second measurement resource is located before the RSRP of the first measurement resource, and the index corresponding to the second measurement resource may not be included in the channel state information report.

[0381] Table 2

[0382] First reference signal index Second reference signal index Third reference signal index RSRP of the fourth reference signal (RSRP of the second measurement resource) The RSRP (RSRP of the first measurement resource) corresponding to the first reference signal index. The RSRP corresponding to the second reference signal index (RSRP of the first measurement resource). The RSRP (RSRP of the first measurement resource) corresponding to the third reference signal index.

[0383] Optional, in Figure 2 Based on the corresponding embodiments, the measurement results include one or more of the following: Reference Signal Received Power (RSRP) and Signal Interference Plus Noise Ratio (SINR).

[0384] Optional, in Figure 2 Based on the corresponding embodiments, sending a channel state information report may include: sending a channel state information report when the measurement result of the first reference signal is greater than the target measurement result, or when the measurement result of the third reference signal is greater than the target measurement result, wherein the target measurement result includes the sum of the measurement result of the fourth reference signal and the target offset.

[0385] In possible implementation 13, the terminal device can report channel state information based on triggering conditions, wherein the triggering conditions may include:

[0386] The measurement result of the first reference signal is greater than the target measurement result, or the measurement result of the third reference signal is greater than the target measurement result, and the target measurement result includes the sum of the measurement result of the fourth reference signal and the target offset.

[0387] It should be understood that the measurement results of the first reference signal and the third reference signal can be interpreted as the measurement results of the first measurement resource, and the measurement result of the fourth reference signal can be interpreted as the measurement result of the second measurement resource. Therefore, the triggering condition can also be understood as: at least one measurement result of the first measurement resource is greater than or equal to the measurement result of the second measurement resource plus a target offset.

[0388] For example, if the measurement result of a reference signal of the first measurement resource is RSRP1, and the measurement result of the second measurement resource is RSRP2, then the triggering condition can be RSRP1 ≥ RSRP2 + RSRP offset Among them, RSRP offset This is the target offset.

[0389] For example, if the measurement result of a reference signal of the first measurement resource is SINR1, and the measurement result of the second measurement resource is SINR2, then the triggering condition can be SINR1 ≥ SINR2 + SINR offset Among them, SINR offset This is the target offset.

[0390] The target offset can be greater than or equal to 0.

[0391] It should be understood that the spatial relationship status is used to indicate beam information, which can be understood as the beam currently in use, such as for data transmission. When the target offset is greater than 0, this triggering condition requires that the measurement result of the first measurement resource, RSRP1, is significantly greater than the measurement result of the second measurement resource, RSRP2.

[0392] In this way, if a terminal device detects that the current beam is not good, and other beams are better, it can send a channel state information report to the network device. The network device can then indicate the spatial relationship status and switch to the better beam. In other words, the network device will only switch beams when the conditions of other beams become sufficiently good, thereby reducing the frequency of beam reporting by the terminal device and minimizing unnecessary overhead.

[0393] When the target offset is equal to 0, the triggering condition may also include: at least one measurement result of the first measurement resource is greater than the measurement result of the second measurement resource.

[0394] When the target offset is greater than 0, the triggering condition may also include: at least one first measurement resource has a measurement result greater than the target measurement result.

[0395] In one implementation, the network device can instruct the terminal device whether it needs to include the measurement results of the second measurement resource in the channel state information report. For example, this instruction can be communicated to the terminal device via an RRC message.

[0396] In one implementation, the target offset can be configured by the network device. For example, the target offset indication can be notified to the terminal device via an RRC message.

[0397] It should be understood that, based on the above embodiments, for the terminal device, the terminal device can execute step S202 and related optional steps, and the network device can execute step S201 and related optional steps, and can also receive channel status information reports, which will not be elaborated further.

[0398] Figure 4 A schematic diagram of the structure of the device 400 provided in an embodiment of this application is shown. The device 400 includes a processor 401, a transceiver 402, and a memory 403. The processor 401, transceiver 402, and memory 403 communicate with each other through an internal connection path. The memory 403 is used to store instructions, and the processor 401 is used to execute the instructions stored in the memory 403 to control the transceiver 402 to transmit and / or receive signals.

[0399] It should be understood that the device 400 may specifically be the transmitting end or receiving end in the above embodiments, and may be used to execute the various steps and / or processes corresponding to the terminal device or network device in the above method embodiments. Optionally, the memory 403 may include read-only memory and random access memory, and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information. The processor 401 may be used to execute instructions stored in the memory, and when the processor 401 executes instructions stored in the memory, the processor 401 is used to execute the various steps and / or processes of the above method embodiments. The transceiver 402 may include a transmitter and a receiver, the transmitter may be used to implement the various steps and / or processes corresponding to the transceiver for performing the transmitting action, and the receiver may be used to implement the various steps and / or processes corresponding to the transceiver for performing the receiving action.

[0400] It should be understood that, in the embodiments of this application, the processor may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0401] In implementation, each step of the above method can be completed by integrated logic circuits in the processor hardware or by instructions in software. The steps of the method in conjunction with the embodiments of this application can be directly manifested as execution by the hardware processor, or as a combination of hardware and software modules in the processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor executes the instructions in the memory, combining them with its hardware to complete the steps of the above method. To avoid repetition, detailed descriptions are omitted here.

[0402] This application also provides a computer-readable storage medium for storing a computer program for implementing the methods shown in the above-described method embodiments.

[0403] This application also provides a computer program product, which includes a computer program (also referred to as code or instructions) that, when run on a computer, allows the computer to perform the methods shown in the above-described method embodiments.

[0404] Those skilled in the art will recognize that the modules and algorithm steps of the various examples described in conjunction with the embodiments herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0405] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and modules described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0406] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or modules may be electrical, mechanical, or other forms.

[0407] The modules described as separate components may or may not be physically separate. Similarly, the components shown as modules may or may not be physical modules; they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0408] In addition, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module.

[0409] If implemented as a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0410] The above are merely specific embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A communication method, characterized in that, include: A channel state information report is determined, which includes measurement results of N reference signals and M reference signal indices. The measurement results of the M reference signals in the N reference signals correspond to the M reference signal indices. N and M are both positive integers, and M is less than or equal to N. Send the channel status information report.

2. The method according to claim 1, characterized in that, The reference signals indicated by the M reference signal indices belong to the first reference signal, which includes the reference signal associated with the first spatial relationship state.

3. The method according to claim 2, characterized in that, The first spatial relationship state includes the spatial relationship state configured by Radio Resource Control (RRC) and / or the spatial relationship state activated by the Media Access Control (MAC) control element CE.

4. The method according to claim 2 or 3, characterized in that, The first reference signal includes the reference signal associated with the spatial reception parameters in the first spatial relationship state.

5. The method according to any one of claims 2-4, characterized in that, The first reference signal includes one or more of the following: a reference signal of type SSB (Synchronization Signal Block) or a reference signal for beam management.

6. The method according to claim 5, characterized in that, The reference signal of the synchronization signal block (SSB) type includes the reference signal associated with the second spatial relationship state of the second reference signal, and the reference signal for beam management includes the reference signal associated with the second spatial relationship state of the second reference signal. The second reference signal includes the reference signal associated with the spatial reception parameters in the first spatial relationship state.

7. The method according to any one of claims 3-6, characterized in that, The larger the index value of the spatial relationship state configured by the RRC, the larger the index value of the first reference signal in the channel state information report. The first reference signal is determined by the spatial relationship state configured by the RRC. And / or, the larger the index value of the spatial relationship state activated by the MAC CE, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state activated by the MAC CE.

8. The method according to any one of claims 1-7, characterized in that, The reference signals indicated by the M reference signal indices belong to the third reference signal, wherein the third reference signal includes the reference signals in the reference signal set configured by RRC, and / or the reference signals in the reference signal set configured by MAC CE.

9. The method according to claim 8, characterized in that, When determining the reference signal index, the third reference signal has a higher priority than the reference signal associated with the first spatial relationship state.

10. The method according to claim 8 or 9, characterized in that, The larger the index value of the third reference signal in the reference signal set, the larger the index value of the third reference signal in the channel state information report. And / or, the larger the index value of the spatial relationship state configured by the RRC, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state configured by the RRC; And / or, the larger the index value of the spatial relationship state activated by the MAC CE, the larger the index value of the first reference signal in the channel state information report, and the first reference signal is determined by the spatial relationship state activated by the MAC CE.

11. The method according to any one of claims 1-10, characterized in that, The measurement results of the N reference signals in the channel state information report include the measurement results of the fourth reference signal, and the channel state information report does not include the index of the fourth reference signal, which includes reference signals that indicate the spatial relationship status.

12. The method according to claim 11, characterized in that, The reference signal associated with the indicated spatial relationship status includes one or more of the following: a reference signal of type Synchronization Signal Block (SSB) or a reference signal used for beam management.

13. The method according to claim 12, characterized in that, The reference signal of the synchronization signal block (SSB) type includes the reference signal associated with the third spatial relationship state of the fifth reference signal, the reference signal for beam management includes the reference signal associated with the third spatial relationship state of the fifth reference signal, and the fifth reference signal includes the reference signal associated with the spatial reception parameters in the indication spatial relationship state.

14. The method according to any one of claims 11-13, characterized in that, The index of the first reference signal is determined based on the spatial relationship state of the most recently received MAC CE activation, and the fourth reference signal is determined based on the spatial relationship state of the most recently received indication.

15. The method according to any one of claims 11-14, characterized in that, In the channel state information report, the measurement results of the fourth reference signal are mapped with lower priority than the measurement results of the first reference signal.

16. The method according to any one of claims 1-15, characterized in that, The measurement results include one or more of the following: Reference Signal Received Power (RSRP) and Signal Interference Plus Noise Ratio (SINR).

17. The method according to any one of claims 11-16, characterized in that, The transmission of the channel state information report includes: If the measurement result of the first reference signal is greater than the target measurement result, or if the measurement result of the third reference signal is greater than the target measurement result, the channel state information report is sent, wherein the target measurement result includes the sum of the measurement result of the fourth reference signal and the target offset.

18. A communication method, characterized in that, include: Configure measurement resources; The channel state information report is received. The channel state information report includes the measurement results of N reference signals and M reference signal indices. The measurement results of the M reference signals in the N reference signals correspond to the M reference signal indices. N and M are both positive integers, and M is less than or equal to N.

19. The method according to claim 18, characterized in that, The reference signals indicated by the M reference signal indices belong to the first reference signal, which includes the reference signal associated with the first spatial relationship state.

20. The method according to claim 19, characterized in that, The first spatial relationship state includes the spatial relationship state configured by Radio Resource Control (RRC) and / or the spatial relationship state activated by the Media Access Control (MAC) control element CE.

21. The method according to claim 19 or 20, characterized in that, The first reference signal includes one or more of the following: a reference signal of type SSB (Synchronization Signal Block) or a reference signal for beam management.

22. The method according to claim 21, characterized in that, The reference signal of the synchronization signal block (SSB) type includes the reference signal associated with the second spatial relationship state of the second reference signal, and the reference signal for beam management includes the reference signal associated with the second spatial relationship state of the second reference signal. The second reference signal includes the reference signal associated with the spatial reception parameters in the first spatial relationship state.

23. The method according to any one of claims 18-22, characterized in that, The reference signals indicated by the M reference signal indices belong to the third reference signal, wherein the third reference signal includes the reference signals in the reference signal set configured by RRC, and / or the reference signals in the reference signal set configured by MAC CE.

24. The method according to any one of claims 18-23, characterized in that, The measurement results of the N reference signals in the channel state information report include the measurement results of the fourth reference signal, and the channel state information report does not include the index of the fourth reference signal, which includes reference signals that indicate the spatial relationship status.

25. The method according to claim 24, characterized in that, The reference signal associated with the indicated spatial relationship status includes one or more of the following: a reference signal of type Synchronization Signal Block (SSB) or a reference signal used for beam management.

26. The method according to any one of claims 18-25, characterized in that, The measurement resources include a first measurement resource and / or a second measurement resource; Wherein, the first measurement resource includes one or more of the following: a first reference signal, a third reference signal; The second measurement resource includes a fourth reference signal.

27. A communication device, characterized in that, include: A processor coupled to a memory for storing a computer program, which, when invoked by the processor, causes the apparatus to perform the method as claimed in any one of claims 1 to 17 or any one of claims 18 to 26.

28. A computer-readable storage medium, characterized in that, Used to store computer programs, the computer programs including instructions for implementing the method as described in any one of claims 1 to 17, or the method as described in any one of claims 18 to 26.

29. A computer program product, the computer program product comprising instructions, characterized in that, When the instructions are executed on a computer, the computer causes the computer to implement the method as described in any one of claims 1 to 17, or the method as described in any one of claims 18 to 26.

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