Information transmission method, communication node, storage medium and program product

Abstract

The invention provides an information transmission method, a communication node, a storage medium and a program product. The method comprises the steps that first indication information and second indication information are received, the first indication information at least comprises channel state information sub-report identification information, and the channel state information sub-report identification information corresponds to sending and receiving point switching information; measuring the channel state information according to the first indication information and the second indication information, and sending a measurement report of the channel state information so as to realize an effect of network energy saving; the channel state information is measured through first indication information and second indication information, the first indication information at least comprises channel state information sub-report identification information, the sub-report identification information corresponds to sending and receiving point switching information, switching control of sending and receiving points is achieved, network energy saving is achieved, and the user experience is improved. And the channel state information is measured based on the switched resources, and a measurement report of the channel state information is reported, so that the energy consumption is effectively reduced.

Description

An information transmission method, communication node, storage medium, and program product. Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to an information transmission method, a communication node, a storage medium, and a program product. Background Technology

[0002] According to statistics from the Global System for Mobile Communications Association (GSMA), electricity costs account for 23% of total operating costs. The energy consumption of the radio access network (RAN) is mainly concentrated in the Active Antenna Unit (AAU), accounting for approximately 90%. AAU energy consumption consists of four parts: the power amplifier (PA), digital intermediate frequency (IF) unit, small signal processing unit (SSN), and power module. Under different service loads, the energy consumption of different modules within the AAU varies significantly. At full load and 30% load, the PA accounts for 58% and 37% of the AAU's power consumption, respectively; the PA consumes the most power in these scenarios. However, under no-load conditions, the PA's power consumption in the AAU decreases to 15%, making it the second lowest power consumption module in the AAU. Network Energy Saving (NES) not only reduces carbon emissions but also saves operating costs, which is of great significance for environmental sustainability. Using Cell-Free Massive Multiple-Input Multiple-Output / Multi-Transmission and Reception Points (CF-MIMO / MTRP) technology can significantly improve system capacity and ensure ultra-reliable transmission. However, using CF-MIMO / MTRP requires the deployment of a large number of network nodes and the coordination and interaction between multiple nodes, thus significantly increasing operating costs and energy consumption. How to achieve network energy saving in CF-MIMO / MTRP scenarios remains a problem to be solved. Summary of the Invention

[0003] This application provides an information transmission method, a communication node, a storage medium, and a program product to achieve network energy saving.

[0004] To achieve the above objectives, embodiments of this application provide an information transmission method applied to a first communication node, comprising:

[0005] Receive first indication information and second indication information, wherein the first indication information includes at least channel state information sub-report identifier information, and the channel state information sub-report identifier information corresponds to transmit / receive point switch information;

[0006] The channel state information is measured according to the first indication information and the second indication information, and a channel state information measurement report is sent.

[0007] To achieve the above objectives, embodiments of this application provide another information transmission method applied to a second communication node, including:

[0008] Send a first indication information and a second indication information, wherein the first indication information includes at least channel state information sub-report identifier information, and the channel state information sub-report identifier information corresponds to the transmit / receive point switch information;

[0009] A measurement report of received channel state information, wherein the measurement report is generated by measuring channel state information based on the first indication information and the second indication information.

[0010] To achieve the above objectives, embodiments of this application provide a communication node, including: a memory, a processor, a program stored in the memory and executable on the processor, and a data bus for implementing communication between the processor and the memory. When the program is executed by the processor, it implements the steps of the information transmission method as described in any one of the embodiments of this application.

[0011] To achieve the above objectives, embodiments of this application provide a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, which can be executed by one or more processors to implement the steps of the information transmission method described in any one of the embodiments of this application.

[0012] To achieve the above objectives, embodiments of this application provide a computer program product, which includes a computer program that, when executed by a processor, implements the information transmission method described in any one of the embodiments of this application.

[0013] The information transmission method, communication node, storage medium, and program product provided in this application embodiment receive first indication information and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to transmit / receive point switch information. Channel state information is measured based on the first and second indication information, and a channel state information measurement report is sent to achieve network energy saving. The measurement of channel state information using the first and second indication information, where the first indication information includes at least channel state information sub-report identifier information corresponding to transmit / receive point switch information, enables transmit / receive point switch control, thereby achieving network energy saving. Channel state information is measured based on resources after the switch, and a channel state information measurement report is reported, effectively reducing energy consumption.

[0014] Further details regarding the above embodiments and other aspects of this application, as well as their implementations, are provided in the accompanying drawings, detailed description, and claims. Attached Figure Description

[0015] Figure 1 is a flowchart of an information transmission method provided in an embodiment;

[0016] Figure 2 is a flowchart of another information transmission method provided in one embodiment;

[0017] Figure 3 is a schematic diagram of the structure of an information transmission device according to an embodiment;

[0018] Figure 4 is a schematic diagram of another information transmission device provided in one embodiment;

[0019] Figure 5 is a schematic diagram of the structure of a communication node provided in one embodiment. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0021] Multi-Transmission / Reception Point (MTRP), Distributed Multiple-Input Multiple-Output (Distributed MIMO), and Cell-Free Massive Multiple-Input Multiple-Output (CF-MIMO) are gaining increasing attention as potential key technologies for multi-antenna architecture in B5G / 6G. A significant characteristic of CF-MIMO is that the spatial distribution of base stations (BS) within a given area is more dispersed compared to the centralized BS used in New Radio (NR), and the number of BSs is greater than that of user equipment (UE). Through coherent transmission, multiple BSs can simultaneously serve multiple UEs.

[0022] To further improve the effectiveness and reliability of communication systems, 3GPP-Rel-16 has gradually enhanced the transmission capabilities of uplink and downlink data and control channels in MTRP scenarios. Currently, it supports two main schemes: SDCI and MDCI. The former is suitable for ideal backhaul conditions, while the latter is applicable to both ideal and non-ideal backhaul conditions. Rel-17 enhanced Channel State Information (CSI) measurement and reporting for Non-Coherent Joint Transmission (NCJT). In Rel-18, to further improve system capacity and coverage in commercial scenarios with ideal backhaul and synchronization, a codebook for Coherent Joint Transmission (CJT) and optimized CSI reporting were designed based on the eType-II and FeType-II codebooks.

[0023] In NR, the Channel State Information Reference Signal (CSI-RS) can be used for downlink CSI measurement and feedback. The complete CSI measurement and feedback process on the UE side includes: the UE receiving CSI-RS configuration information, the UE measuring the CSI-RS sent by the BS based on the CSI-RS configuration information, and the UE feeding back the measurement results of the CSI-RS as a downlink CSI report. To further improve the flexibility of CSI measurement and feedback in NR, the CSI framework is divided into resource setting and reporting setting.

[0024] CSI Resource Setting is determined by the Radio Resource Control (RRC) Information Element (IE) CSI-ResourceConfig. Each CSI-ResourceConfig includes at least one NZP-CSI-RS-ResourceSet, and / or at least one CSI-IM-ResourceSet and / or at least one CSI-SSB-ResourceSet. Each NZP-CSI-RS-ResourceSet contains at least one NZP-CSI-RS-Resource, and each CSI-IM-ResourceSet contains at least one CSI-IM-Resource. The NZP-CSI-RS-Resource can be used for channel or interference measurement, while the CSI-IM-Resource is used for interference measurement. For simplicity, NZP-CSI-RS-Resource and CSI-IM-Resource will be collectively referred to as CSI-RS Resources. Based on the time-domain characteristic parameters configured in the CSI-RS Resource configuration, they can be categorized into periodic CSI-RS, semi-persistent CSI-RS, and aperiodic CSI-RS.

[0025] Reporting settings are determined by the RRC IE CSI-Reportconfig. Each CSI-Reportconfig is associated with at least one CSI-ResourceConfig. Each CSI-Reportconfig contains the channel measurement resources, interference measurement resources, and CSI report configuration types, report quality, report frequency domain configuration, codebook configuration, etc., associated with the CSI-ResourceConfig. Based on the CSI report configuration type, CSI reports can be divided into periodic CSI reports, semi-persistent CSI reports, and aperiodic CSI reports. Periodic CSI reports do not require dynamic triggering or activation and are carried on the Physical Uplink Control Channel (PUCCH). Semi-persistent CSI reports can be carried on the PUCCH or the Physical Uplink Shared Channel (PUSCH); semi-persistent CSI reports carried on the PUCCH are activated by the Medium Access Control Control Element (MAC-CE); semi-persistent CSI reports carried on the PUSCH are triggered by Downlink Control Information (DCI). Non-periodic CSI reports are carried on the PUSCH and triggered by DCI. The NR further defines the relationship between CSI measurement resources and CSI measurement reports. Periodic CSI-RS supports periodic CSI reports, semi-continuous CSI reports, and non-periodic CSI reports; semi-continuous CSI-RS supports both semi-continuous and non-periodic CSI reports; non-periodic CSI-RS only supports non-periodic CSI reports.

[0026] 3GPP-Rel-18 has completed the NES scheme for Spatial Domain Adaptations (SDA) for centralized BSs, including two types: Type-I-SDA and Type-II-SDA. Type-I-SDA disables all antenna elements in a subarray, changing the number of logical antenna ports; Type-II-SDA disables some antenna elements in a subarray, without changing the number of logical antenna ports, but alters the beamform. To minimize the impact of standardization, within the existing CSI measurement and reporting framework, one or more sub-configurations are configured under a CSI report-config. Each sub-configuration is associated with a sub-CSI-report, corresponding to an SDA pattern and a set of CSI-RS resources. The UE first measures the multiple CSI-RS configured by the BS, and then feeds back the CSI-RS measurement results to the BS. The BS selects an SDA pattern based on the UE's feedback. Type-I-SDA requires different sub-configurations to indicate the active antenna port via a bitmap. A value of '1' indicates an active antenna port, and a value of '0' indicates a silent antenna port.

[0027] To further improve transmission rates while reducing network-side power consumption, a NES solution for CF-MIMO / MTRP scenarios can be considered. This requires addressing issues such as TRP-level switching indication information and CSI report measurement configuration; however, current technologies do not yet meet these requirements.

[0028] Figure 1 is a flowchart of an information transmission method according to an embodiment. As shown in Figure 1, the information transmission method described in this embodiment is applied to a first communication node. For example, the first communication node may be a user equipment. The method includes S110-S120:

[0029] S110. Receive first indication information and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to the transmit / receive point switch information.

[0030] In this embodiment, the first indication information and the second indication information can be understood as information used to indicate the measurement of channel state information of the first communication node. For example, it indicates the configuration of the channel state information measurement of the first communication node, the triggering state of the channel state information measurement of the first communication node, and so on. The channel state information sub-report identifier information, i.e., the CSI sub-report ID information, is used to identify the sub-reports of channel state information. The channel state information sub-report identifier information can be a non-negative integer. The transmit / receive point switch information is used to indicate whether the CSI-RS resources associated with the transmit / receive point (TRP) are turned on or off. The transmit / receive point switch information can achieve network energy saving. For example, if the number of transmit / receive points is 4, the transmit / receive point switch information can control the CSI-RS resources associated with 2 transmit / receive points to be turned off, thereby reducing energy consumption. The channel state information sub-report identifier information is associated with the transmit / receive point switch information.

[0031] The first communication node can receive first indication information and second indication information. The first and second indication information can be received sequentially or simultaneously; this embodiment does not limit this. The first indication information includes at least channel state information sub-report identifier information. The first communication node can determine the channel state information sub-report identifier information by parsing the first indication information. The channel state information sub-report identifier information corresponds to transmit / receive point switch information. There can be a one-to-one correspondence between the channel state information sub-report identifier information and the transmit / receive point switch information. For example, each channel state information sub-report identifier information is associated with a type of transmit / receive point switch information. This association can be pre-established, and after determining the channel state information sub-report identifier information, its corresponding transmit / receive point switch information can be determined, thereby achieving switch control of the transmit / receive point. Alternatively, each channel state information sub-report identifier information is associated with a type of transmit / receive point switch information; when the channel state information sub-report identifier information is received, the transmit / receive point switch information can also be received.

[0032] S120. Measure the channel state information according to the first instruction information and the second instruction information, and send a measurement report of the channel state information.

[0033] The signal state information is measured based on the first and second indication information. For example, the measurement configuration is performed based on the first indication information. For instance, the resources used for channel state information measurement are determined based on the first indication information. Channel state information sub-report identifier information is configured through the first indication information. This sub-report identifier information is associated with one or more transmit / receive point (TR / RS) switch information. For example, one TR / RS switch information associated with the sub-report identifier information might be: 2 out of 4 CSI-RS resources associated with a TRP are closed, and CSI measurement is performed based on the remaining 2 TRPs. Based on the second indication information, a channel state information sub-report identifier information is selected from the configured sub-report identifier information. Switching is then performed based on the TR / RS switch information associated with the sub-report identifier information. Alternatively, the TR / RS switch information associated with the configured sub-report identifier information can be directly determined and corresponding switching is performed. The trigger time for channel state information measurement can also be determined based on the second indication information, and the corresponding channel state information measurement is performed based on the trigger state and the determined TR / RS switch information. A measurement report is generated based on the measurement results and submitted.

[0034] The information transmission method provided in this application embodiment receives first indication information and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to transmit / receive point switch information. Channel state information is measured based on the first and second indication information, and a channel state information measurement report is sent to achieve network energy saving. The measurement of channel state information using the first and second indication information, where the first indication information includes at least channel state information sub-report identifier information corresponding to transmit / receive point switch information, enables transmit / receive point switch control, thereby achieving network energy saving. The measurement of channel state information based on resources after the switch is completed and a channel state information measurement report is reported, effectively reducing energy consumption.

[0035] In some embodiments, the first indication information further includes at least one of the following:

[0036] Channel state information refers to the set of signal resources;

[0037] Send and receive point switch information;

[0038] Working mode information;

[0039] Power set information.

[0040] In this embodiment, the channel state information reference signal resource set information can be a set formed based on one or more channel state information reference signal resources. For example, the channel state information reference signal resource set information includes multiple channel state information reference signal resources, or the channel state information reference signal resource set information includes set identification information. The set identification information can be used to uniquely identify a set. The communication node can directly pre-agree on the correspondence between the set identification information and the set. Based on the set identification information, the set it identifies and the elements included in the set can be uniquely determined. Each element corresponds to a channel state information reference signal resource.

[0041] The working mode information can be understood as information used to describe the working mode of the transmitting and receiving points. For example, the working mode information includes one or more working modes, such as energy-saving mode, non-energy-saving mode, etc. The working mode in the embodiments of this application can be configured according to needs, and one or more working modes can be configured.

[0042] Power set information can be understood as information used to adjust the operating power of channel state information reference signal resources. The power set information may include one or more power information for adjusting the operating power of one or more channel state information reference signal resources. For example, the operating power may be the transmission power. If the power set information is empty or the first indication information does not carry power set information, it means that the operating power of the channel state information reference signal resources will not be adjusted.

[0043] In some embodiments, the channel state information reference signal resource set information includes N1 channel state information reference signal resource identifiers associated with the transmit and receive points used for coherent transmission.

[0044] The channel state information reference signal resource set information includes N1 channel state information reference signal resource identifiers, where N1 is a positive integer greater than or equal to 2. These identifiers are used to identify the channel state information reference signal resources, which are associated with transmitting and receiving points. The channel state information reference signal resource set information includes N1 channel state information reference signal resource identifiers associated with transmitting and receiving points used for coherent transmission; that is, it indicates that the channel state information reference signal resource set information includes N1 channel state information reference signal resources associated with transmitting and receiving points used for coherent transmission.

[0045] In some embodiments, transmit / receive point switch information is used to explicitly or implicitly indicate the switch status of channel state information reference signal resources associated with at least one transmit / receive point of coherent transmission, the switch status including at least one of on or off.

[0046] The transmit / receive point switch information can display the switch status of the channel state information reference signal resource associated with at least one transmit / receive point in coherent transmission. The switch status includes at least one of being on or off. For example, the switch status of the channel state information reference signal resource associated with each transmit / receive point has a corresponding indicator bit. After receiving the transmit / receive point switch information, the first communication node can directly determine the switch status of the channel state information reference signal resource associated with each transmit / receive point, that is, whether the channel state information reference signal resource associated with each transmit / receive point is on or off. For example, when the transmit / receive point switch information is 01, it indicates that the channel state information reference signal resource associated with TRP2 is off. The transmit / receive point switch information can implicitly indicate the switch status of channel state information reference signal resources associated with at least one transmit / receive point in coherent transmission. The switch status includes at least one of being on or off. For example, the correspondence between different switch information and the switch status of channel state information reference signal resources can be pre-stored. After receiving the transmit / receive point switch information, the first communication node can determine which channel state information reference signal resources need to be turned on or off according to the correspondence. For example, the number of TRPs is 3. When the transmit / receive point switch information is 0, it indicates that the channel state information reference signal resources associated with TRP1 are off. When the transmit / receive point switch information is 1, it indicates that the channel state information reference signal resources associated with TRP2 are off. When the transmit / receive point switch information is 2, it indicates that the channel state information reference signal resources associated with TRP3 are off. When the transmit / receive point switch information is 3, it indicates that the channel state information reference signal resources associated with TRP1 and TRP2 are off. When the transmit / receive point switch information is 4, it indicates that the channel state information reference signal resources associated with TRP1 and TRP3 are off.

[0047] In some embodiments, transmitting receiver point switch information includes at least one of the following:

[0048] Bitmap;

[0049] Case Index.

[0050] In some embodiments, the transmit / receive point switch information is a bitmap with a bit width of N1. Each bit of the bitmap corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information. Each bit in the bitmap indicates the switch state of the associated channel state information reference signal resource.

[0051] In this embodiment, the bitmap typically has a value of 0 or 1. The transmit / receive point switch information is represented by a bitmap with a bit width of N1. Each bit in the bitmap corresponds to a channel state information reference signal resource (CSI-RS) in the channel state information reference signal resource set information. For example, each bit from high to low in the bitmap corresponds to a CSI-RS resource (hereinafter referred to as NZP-CSI-RS resource). Each bit in the bitmap indicates the on / off state of its associated CSI-RS resource; that is, each bit in the bitmap indicates the on / off state of its corresponding CSI-RS resource. For example, a bitmap of 01 indicates that the CSI-RS resource associated with TRP1 is off, and a bitmap indicates that the CSI-RS resource associated with TRP2 is on. The bitmap can display the on / off state of the CSI-RS resources.

[0052] In some embodiments, all bits of the bitmap may have at least two possible values.

[0053] The values ​​of all bits in the bitmap are not identical; that is, at least two values ​​must be taken. For example, the bitmap values ​​may be 001, 110, etc. The values ​​of all bits in the bitmap are not all 0 or all 1. For example, 0 represents "off," and not all 0s indicate that all channel state information reference signal resources are not turned off. If all bits in the bitmap have the same value, it means that all channel state information reference signal resources are either on or off. Normally, if all channel state information reference signal resources are on or off, no further indication is needed.

[0054] For example, when the number of TRPs is 2, the bitmap can be 01 or 10; when the number of TRPs is 3, the bitmap can be 001, 010, 100, 011, 101, or 110; when the number of TRPs is 4, the bitmap can be 0001, 0010, 0100, 1000, 0011, 0110, 1001, 1010, 1100, 0101, 0111, 1011, 1101, or 1110. Each bit takes a value of 0 or 1, and each bit corresponds to a Channel State Information Reference Signal Resource for a TRP, indicating whether the resource is on or off. The signaling overhead is positively correlated with the number of maximum cooperative transmit / receive points; that is, the more transmit / receive points there are, the greater the signaling overhead.

[0055] In some embodiments, the transmit / receive point switch information is a case index, the case index being N2, where N2 is a non-negative integer. The case index implicitly indicates the switch status of the channel state information reference signal resource in the channel state information reference signal resource set information.

[0056] In this embodiment, the case index can be understood as information used to represent or indicate the switch state. For example, a case index of 1 indicates that the switch state of the channel state information reference signal resource associated with TRP1 is off, and a case index of 2 indicates that the switch state of the channel state information reference signal resources associated with TRP1 and TRP2 is off. The case index takes the value N2, where N2 is a non-negative integer. The case index can implicitly indicate the switch state of the channel state information reference signal resource in the channel state information reference signal resource set information. Different cases can be predetermined, each case corresponding to a different switch state of the channel state information reference signal resource. Each case is identified by the case index, that is, different case indices correspond to different switch states of the channel state information reference signal resource. After determining the transmit / receive point switch information, the first communication node determines the switch state of the channel state information reference signal resource indicated by the case index according to the correspondence. The channel state information reference signal resource corresponds to an element in the channel state information reference signal resource set information, that is, the channel state information reference signal resource is the resource corresponding to the channel state information reference signal resource identifier in the channel state information reference signal resource set. Case indexes can be represented using pattern indexes. Case indexes indicate the on / off state of channel state information reference signal resources. Signaling overhead is positively correlated with the number of predefined case patterns; that is, the more predefined cases, the greater the signaling overhead.

[0057] In some embodiments, the operating mode information includes at least one of the following operating modes:

[0058] Non-energy-saving mode;

[0059] Energy-saving mode;

[0060] Single sender / receiver mode;

[0061] Multiple transmit / receive point mode with Q1 transmit / receive points disabled, where Q1 is a positive integer greater than or equal to 1;

[0062] Close Q2 transmit and receive points, where Q2 is a positive integer greater than or equal to 1;

[0063] Adaptive mode.

[0064] In this embodiment, the operating mode information can be understood as information describing the operating mode. The operating mode information may include one or more operating modes, which can be non-energy-saving, energy-saving, or other types of modes. There are various energy-saving operating modes, such as single transmit / receive point mode, multi-transmit / receive point mode with Q1 transmit / receive points disabled, Q2 transmit / receive points disabled, etc. If the operating mode is configured as non-energy-saving, it means that the channel state information reference signal resources corresponding to the TRP do not need to be disabled; transmit / receive point switch information can be omitted or left blank. If the operating mode is configured as energy-saving, the first communication node can decide how to select transmit / receive point channel state information reference signal resources to disable, such as the number of disabled resources, which transmit / receive points' channel state information reference signal resources to disable, etc., or it can be disabled according to a pre-defined agreement. If the operating mode is configured as single transmit / receive point mode, it means that only the channel state information reference signal resources associated with one TRP are retained, and the rest are disabled. The operating mode is configured as a multi-transmitter / receiver point mode with Q1 transmit / receive points disabled, meaning that the channel state information reference signal resources associated with Q1 transmit / receive points are disabled, leaving multiple transmit / receive points remaining. Setting the operating mode to disable Q2 transmit / receive points means disabling the channel state information reference signal resources associated with Q2 transmit / receive points. Setting the operating mode to adaptive mode means that the first communication node can set the operating mode according to its actual needs. When setting the operating mode, the first communication node can choose an energy-saving mode or a non-energy-saving mode; that is, the first communication node can adaptively set any of the above types of operating modes as the final selected operating mode. For example, the first communication node can set the operating mode to a single transmit / receive point mode, or the first communication node can set the operating mode to a multi-transmitter / receiver point mode and disable Q1 transmit / receive points, etc.

[0065] In some embodiments, the number of elements in the channel state information reference signal resource set information is N1, where N1 is a positive integer;

[0066] The operating mode is a single transmitter / receiver point mode, and N1 is greater than or equal to 2;

[0067] The operating mode is multi-transmitter / receiver mode with Q1 transmit / receiver point disabled, and the difference between N1 and Q1 is greater than or equal to 2;

[0068] The operating mode is to shut down Q2 transmitting and receiving points, and the difference between N1 and Q2 is greater than or equal to 1.

[0069] In this embodiment, the number of elements in the Channel State Information Reference Signal Resource Set is N1, meaning the Channel State Information Reference Signal Resource Set includes N1 Channel State Information Reference Signal Resource identifiers associated with transmit / receive points used for coherent transmission. Each Channel State Information Reference Signal Resource identifier identifies a Channel State Information Reference Signal Resource. When the operating mode is single transmit / receive point mode, N1 is greater than or equal to 2, and at least one Channel State Information Reference Signal Resource associated with a TRP can be shut down. When the operating mode is multi-transmit / receive point mode and Q1 transmit / receive points are shut down, the difference between N1 and Q1 is greater than or equal to 2, and after shutting down Q1 transmit / receive points, at least two transmit / receive points remain operational. When the operating mode is Q2 transmit / receive points shut down, the difference between N1 and Q2 is greater than or equal to 1, and after shutting down Q2 transmit / receive points, at least one transmit / receive point remains operational.

[0070] For example, configuring the working mode as a single transmit / receive point requires N1>=2; configuring the working mode as a multi-transmit / receive point mode and disabling Q1 transmit / receive point (Q1=1) requires N1>=3; configuring the working mode to disable Q2 transmit / receive points (Q2=2) requires N1>=4.

[0071] In some embodiments, the transmit / receive point switch information is configured when the operating mode includes at least one of the following:

[0072] Energy-saving mode;

[0073] Single sender / receiver mode;

[0074] Multiple transmit / receive point mode and Q1 transmit / receive points are disabled;

[0075] Shut down Q2 transmit and receive points;

[0076] Adaptive mode.

[0077] When the operating modes include at least one of the following: energy-saving mode, single transmit / receive point mode, multiple transmit / receive point mode with Q1 transmit / receive points disabled, Q2 transmit / receive points disabled, and adaptive mode, transmit / receive point switch information is configured to control the opening or closing of the channel state information reference signal resource associated with the transmit / receive point based on the transmit / receive point switch information. In non-energy-saving mode, transmit / receive point switch information does not need to be configured.

[0078] When the adaptive mode is a non - energy - saving mode, the transmission and reception point switch information may not be configured. When the adaptive mode is an energy - saving mode, the transmission and reception point switch information is configured. The configured working mode is the adaptive mode. When the transmission and reception point switch information is not configured, it means working in the non - energy - saving mode; when the transmission and reception point switch information is configured, it means working in the energy - saving mode. Working in the energy - saving mode or the non - energy - saving mode in the embodiments of this application refers to whether multiple TRPs work in the energy - saving mode or the non - energy - saving mode as a whole. For example, in the case of 3 TRPs, if one or two TRPs are turned off, it means working in the energy - saving mode; if none of the TRPs are turned off, it means working in the non - energy - saving mode.

[0079] In some embodiments, the power set information is used to adjust the transmission power of some or all of the channel state information reference signal resource sets associated with at least two transmission and reception points for coherent transmission; the power set information includes K1 elements, and each element represents the power deviation between the physical downlink shared channel resource element and the corresponding channel state information reference signal resource element.

[0080] K1 = N1, and each element in the power set information corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information; K1 < N1, and each element in the power set information corresponds to each channel state information reference signal resource that is turned on after being controlled by the transmission and reception point switch in the channel state information reference signal resource set information, where N1 is the number of elements in the channel state information reference signal resource set information.

[0081] The power set information is used to adjust the transmission power of some or all of the channel state information reference signal resources in the channel state information reference signal resource set information associated with at least two transmit-receive points for coherent transmission; the power set information includes K1 elements, and each element represents the power deviation between the physical downlink shared channel resource element and the corresponding channel state information reference signal resource element. When K1 = N1, each element in the power set information corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information, and can be used to adjust the transmission power of all the channel state information reference signal resources in the channel state information reference signal resource set information associated with at least two transmit-receive points for coherent transmission. In the case of turning off some of the channel state information reference signal resources, although there is a corresponding transmission power in the power set information, the transmission power corresponding to the turned-off channel state information reference signal resources can be not adjusted. When K1 < N1, each element in the power set information corresponds to each channel state information reference signal resource that is turned on after being controlled by the transmit-receive point switch, and can be used to adjust the transmission power of some of the channel state information reference signal resources in the channel state information reference signal resource set information associated with at least two transmit-receive points for coherent transmission.

[0082] In some embodiments, the first indication information is included in a channel state information sub-report configuration; one or more channel state information sub-report configurations are included in a channel state information report configuration, and the channel state information report configuration is carried on the radio resource control.

[0083] In some embodiments, the second indication information includes at least one of the following:

[0084] Aperiodic trigger state set information;

[0085] Semi-persistent trigger state set information;

[0086] Channel state information sub-report set information;

[0087] Channel state information report set information;

[0088] Channel state information report identification information;

[0089] Channel state information sub-report identification information;

[0090] Channel state information report set selection information;

[0091] Channel state information sub-report set selection information;

[0092] Channel state request information.

[0093] In this embodiment, the aperiodic trigger state set information can be understood as information used to describe the trigger state of the aperiodic channel state information report; the aperiodic trigger state set information may include one or more aperiodic channel state information report trigger states.

[0094] Semi-persistent trigger state set information can be understood as information used to describe the trigger state of aperiodic channel state information reports. Semi-persistent trigger state set information may include one or more semi-persistent channel state information report trigger states.

[0095] The channel state information sub-report set information can be understood as information used to describe the channel state information sub-reports; the channel state information sub-report set information may include one or more channel state information sub-report identifiers.

[0096] Channel state information report set information can be understood as information used to describe channel state information reports; channel state information report set information may include one or more channel state information report identifiers.

[0097] Channel state information report identification information can be understood as information used to identify channel state information reports; the channel state information report identification information may include a channel state information report identifier, and a channel state information report identifier is used to identify a channel state information report.

[0098] Channel state information sub-report identification information can be understood as information used to identify channel state information sub-reports; the channel state information sub-report identification information may include a channel state information sub-report identifier, and a channel state information sub-report identifier is used to identify a channel state information sub-report.

[0099] Channel state information report set selection information can be understood as information used to select channel state information reports. Channel state information report set selection information can be used to select one or more channel state information reports.

[0100] The channel state information sub-report set selection information can be understood as information used to select channel state information sub-reports. The channel state information sub-report set selection information can be used to select one or more channel state information sub-reports.

[0101] Channel State Request (CS) information can be understood as a trigger state used to trigger one or more aperiodic or semi-persistent CS reports.

[0102] In some embodiments, the aperiodic trigger state set information includes M1 aperiodic channel state information report trigger states, and one aperiodic channel state information report trigger state is associated with a channel state information sub-report information set or a channel state information report set information.

[0103] The semi-persistent trigger state set information includes M2 semi-persistent channel state information report trigger states. Each semi-persistent channel state information report trigger state is associated with a channel state information report identifier or a channel state information sub-report identifier.

[0104] The channel state information sub-report set information includes L1 channel state information sub-report identifiers;

[0105] The channel state information report set includes L2 channel state information report identifiers;

[0106] The channel state information report identifier information includes a channel state information report identifier;

[0107] The channel state information sub-report identifier information includes a channel state information sub-report identifier;

[0108] Where M1, M2, L1, and L2 are all positive integers.

[0109] In some embodiments, the channel state information report set selection information is used to select one or more channel state information reports from the configured channel state information report set information;

[0110] The channel state information sub-report set selection information is used to select one or more channel state information sub-reports from the configured channel state information sub-report set information.

[0111] When the channel state information report set includes L2 channel state information report identifiers, one or more channel state information reports can be selected from the configured channel state information report set information based on the channel state information report set selection information. That is, one or more channel state information report identifiers are selected from the L2 channel state information report identifiers, with each identifier corresponding to one channel state information report, thus achieving the selection of channel state information reports. Alternatively, the channel state information report set selection information can be understood as being used to select one or more channel state information report identifiers from the configured channel state information report set information. When the channel state information report set includes L2 channel state information reports, one or more channel state information reports can be selected from the configured set information based on the channel state information report set selection information, meaning one or more channel state information reports are directly selected from the L2 channel state information reports.

[0112] When the channel state information sub-report set includes L1 channel state information sub-report identifiers, one or more channel state information sub-reports can be selected from the configured channel state information sub-report set information based on the channel state information sub-report set selection information. That is, one or more channel state information sub-report identifiers are selected from the L1 channel state information sub-report identifiers, with each identifier corresponding to one channel state information sub-report, thus achieving the selection of channel state information sub-reports. Alternatively, the channel state information sub-report set selection information can be understood as being used to select one or more channel state information sub-report identifiers from the configured set information. When the channel state information sub-report set includes L1 channel state information sub-reports, one or more channel state information sub-reports can be selected from the configured set information based on the selection information, meaning one or more sub-reports can be directly selected from the L1 channel state information sub-reports.

[0113] In some embodiments, the channel state information report set selection information selects channel state information reports using a bitmap, the length of which is the same as the number of channel state information report identifiers included in the channel state information report set information.

[0114] The channel state information sub-report set selection information selects channel state information sub-reports using a bitmap. The length of the bitmap is the same as the number of channel state information sub-report identifiers included in the channel state information sub-report set information.

[0115] The channel state information (CSA) report set selection information uses a bitmap to select CSA reports. Each CSA report identifier uniquely identifies a CSA report, and the length of the bitmap is the same as the number of CSA report identifiers included in the CSA report set information. Similarly, the channel state information sub-report set selection information uses a bitmap to select sub-channel state information reports. Each sub-channel state information report identifier uniquely identifies a sub-channel state information report, and the length of the bitmap is the same as the number of sub-channel state information report identifiers included in the sub-channel state information set information.

[0116] For example, the channel state information report set selection information uses a bitmap to select channel state information reports, where 0 indicates unselected and 1 indicates selected; bitmap 0110 indicates that channel state information report 1 and channel state information report 2 are selected. The channel state information sub-report set selection information also uses a bitmap to select channel state information reports, where 0 indicates unselected and 1 indicates selected; bitmap 0001 indicates that channel state information sub-report 3 is selected.

[0117] In some embodiments, at least one of the following information is carried in the radio control resources: non-periodic trigger state set information, semi-persistent trigger state set information, channel state information sub-report set information, and channel state information report set information.

[0118] In some embodiments, at least one of the channel state information report set selection information, the channel state information sub-report set selection information, and the channel state request information is carried in the downlink control information;

[0119] Downlink control information can be user equipment-specific information or user equipment-common information.

[0120] In this embodiment, the downlink control information is either user equipment-specific information or user equipment-common information, that is, DCI can be UE-specific or UE-common.

[0121] In some embodiments, the channel state request information is associated with an aperiodic channel state information report trigger state or a semi-persistent channel state information report trigger state.

[0122] In some embodiments, the semi-persistent channel state information in the semi-persistent trigger state set information reports the trigger state by code points being activated or deactivated; a media access control control element signaling activates or deactivates at least one code point.

[0123] The semi-persistent channel state information report trigger state can be activated or deactivated by a codepoint; a medium access control control element signaling can activate or deactivate at least one codepoint, that is, a MAC-CE signaling can activate or deactivate at least one codepoint simultaneously.

[0124] In some embodiments, the semi-persistent channel state information report trigger state in the semi-persistent trigger state set information is determined based on the channel state information request field in the downlink control information.

[0125] The trigger state of a semi-persistent channel state information report can be determined based on the channel state information request field in the downlink control information. That is, the trigger state of a semi-persistent channel state information report is related to the CSI request field in the DCI.

[0126] In some embodiments, the aperiodic channel state information report trigger state in the aperiodic trigger state set information is determined based on the channel state information request field in the downlink control information.

[0127] The trigger state of an aperiodic channel state information report can be determined based on the channel state information request field in the downlink control information. That is, the trigger state of an aperiodic channel state information report is related to the CSI request field in the DCI.

[0128] In this embodiment, the aperiodic channel state information report is triggered by DCI, while the semi-persistent channel state information report can be triggered by either DCI or MAC-CE.

[0129] The information transmission method provided in this application provides multiple indication methods for transmit / receive point switch information. It can display the switch status of the channel state information reference signal resource associated with at least one transmit / receive point in coherent transmission via a bitmap, or implicitly indicate it through a case index. This application also provides multiple different operating modes. In an energy-saving mode, transmit / receive point switch information is configured to achieve network energy saving; in a non-energy-saving mode, transmit / receive point switch information is not configured, enabling flexible configuration between energy saving and non-energy saving. A second indication information further indicates the triggering status of the measurement report, providing a triggering method for the measurement report and enabling flexible triggering of the measurement report.

[0130] Figure 2 is a flowchart of another information transmission method provided in an embodiment. As shown in Figure 2, the information transmission method described in this embodiment is applied to a second communication node. For example, the second communication node may be a base station. The method includes S210-S220:

[0131] S210. Send first indication information and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to the sender-receiver point switch information.

[0132] The second communication node sends a first indication message and a second indication message to the first communication node. The first and second indication messages can be generated by the second communication node, based on information such as the service scenario and the capabilities of the first communication node. The first indication message includes at least a channel state information sub-report identifier, which corresponds to the transmit / receive point switch information. The first and second indication messages instruct the first communication node to measure the channel state information.

[0133] Since the first indication information may indicate the on / off state of channel state information reference signal resources associated with multiple transmitting and receiving points, meaning there may be multiple transmitting and receiving points, each with a corresponding base station, and in the case of multiple base stations, one of the base stations is a master base station. In this embodiment, the second communication node may refer to the master base station among the base stations.

[0134] S220. Receive a measurement report of channel state information. The measurement report is a report generated by measuring channel state information based on the first indication information and the second indication information.

[0135] The second communication node receives a measurement report of channel state information. The measurement report may be a report generated and reported by the first communication node based on the first indication information and the second indication information to measure the channel state information.

[0136] The information transmission method provided in this application embodiment sends first indication information and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to transmit / receive point switch information. It receives a channel state information measurement report, which is a report generated by measuring channel state information based on the first and second indication information, thereby achieving network energy saving. The method instructs the measurement of channel state information through the first and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to transmit / receive point switch information, thereby achieving transmit / receive point switch control and network energy saving. It also receives a channel state information measurement report based on resources after the switch is applied, effectively reducing energy consumption.

[0137] In some embodiments, the first indication information further includes at least one of the following:

[0138] Channel state information refers to the set of signal resources;

[0139] Send and receive point switch information;

[0140] Working mode information;

[0141] Power set information.

[0142] In some embodiments, the channel state information reference signal resource set information includes N1 channel state information reference signal resource identifiers associated with transmit and receive points used for coherent transmission.

[0143] In some embodiments, the transmit / receive point switch information is used to display or implicitly indicate the switch status of channel state information reference signal resources associated with at least one transmit / receive point of coherent transmission, the switch status including at least one of on or off.

[0144] In some embodiments, the transmit / receive point switch information includes at least one of the following:

[0145] Bitmap;

[0146] Case Index.

[0147] In some embodiments, the transmit / receive point switch information is a bitmap with a bit width of N1. Each bit of the bitmap corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information. Each bit in the bitmap indicates the switch state of the associated channel state information reference signal resource.

[0148] In some embodiments, all bits of the bitmap may have at least two possible values.

[0149] In some embodiments, the transmit / receive point switch information is a case index, the case index being N2, where N2 is a non-negative integer, and the case index implicitly indicates the switch status of the channel state information reference signal resource in the channel state information reference signal resource set information.

[0150] In some embodiments, the operating mode information includes at least one of the following operating modes:

[0151] Non-energy-saving mode;

[0152] Energy-saving mode;

[0153] Single sender / receiver mode;

[0154] Multiple transmit / receive point mode with Q1 transmit / receive points disabled, where Q1 is a positive integer greater than or equal to 1;

[0155] Close Q2 transmit / receive points, where Q2 is a positive integer greater than or equal to 1;

[0156] Adaptive mode.

[0157] In some embodiments, the number of elements in the channel state information reference signal resource set information is N1, where N1 is a positive integer;

[0158] The operating mode is a single transmit / receive point mode, and N1 is greater than or equal to 2;

[0159] The working mode is a multi-transmit-receive point mode and the Q1 transmit-receive point is closed, and the difference between N1 and Q1 is greater than or equal to 2;

[0160] The working mode is to close Q2 transmit-receive points, and the difference between N1 and Q2 is greater than or equal to 1.

[0161] In some embodiments, the transmit-receive point switch information is configured when the working mode includes at least one of the following:

[0162] Energy saving mode;

[0163] Single transmit-receive point mode;

[0164] Multi-transmit-receive point mode and close Q1 transmit-receive points;

[0165] Close Q2 transmit-receive points;

[0166] Adaptive mode.

[0167] In some embodiments, the power set information is used to adjust the transmission power of some or all of the channel state information reference signal resources associated with at least two transmit-receive points for coherent transmission; the power set information includes K1 elements, and each element represents the power deviation between a physical downlink shared channel resource element and a corresponding channel state information reference signal resource element;

[0168] K1 = N1, and each element in the power set information corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information; K1 < N1, and each element in the power set information corresponds to each channel state information reference signal resource that is turned on after transmit-receive point switch control in the channel state information reference signal resource set information, and N1 is the number of elements in the channel state information reference signal resource set information.

[0169] In some embodiments, the first indication information is included in a channel state information sub-report configuration; one or more of the channel state information sub-report configurations are included in a channel state information report configuration, and the channel state information report configuration is carried on radio resource control.

[0170] In some embodiments, the second indication information includes at least one of the following:

[0171] Aperiodic trigger status set information;

[0172] Semi-persistent trigger status set information;

[0173] Channel state information sub-report set information;

[0174] Channel state information report set information;

[0175] Channel state information report identifier information;

[0176] Channel state information sub-report identifier information;

[0177] Channel state information report set selection information;

[0178] Channel state information sub-report set selection information;

[0179] Channel status request information.

[0180] In some embodiments, the aperiodic trigger state set information includes M1 aperiodic channel state information report trigger states, and one aperiodic channel state information report trigger state is associated with a channel state information sub-report information set or a channel state information report set information;

[0181] The semi-persistent trigger state set information includes M2 semi-persistent channel state information report trigger states, and each semi-persistent channel state information report trigger state is associated with a channel state information report identifier or a channel state information sub-report identifier.

[0182] The channel state information sub-report set information includes L1 channel state information sub-report identifiers;

[0183] The channel state information report set information includes L2 channel state information report identifiers;

[0184] The channel state information report identifier information includes a channel state information report identifier;

[0185] The channel state information sub-report identifier information includes a channel state information sub-report identifier;

[0186] Where M1, M2, L1, and L2 are all positive integers.

[0187] In some embodiments, the channel state information report set selection information is used to select one or more channel state information reports from the configured channel state information report set information;

[0188] The channel state information sub-report set selection information is used to select one or more channel state information sub-reports from the configured channel state information sub-report set information.

[0189] In some embodiments, the channel state information report set selection information selects channel state information reports using a bitmap, wherein the length of the bitmap is the same as the number of channel state information report identifiers included in the channel state information report set information.

[0190] The channel state information sub-report set selection information selects channel state information sub-reports using a bitmap, and the length of the bitmap is the same as the number of channel state information sub-report identifiers included in the channel state information sub-report set information.

[0191] In some embodiments, at least one of the non-periodic trigger state set information, the semi-persistent trigger state set information, the channel state information sub-report set information, and the channel state information report set information is carried in radio control resources.

[0192] In some embodiments, at least one of the channel state information report set selection information, the channel state information sub-report set selection information, and the channel state request information is carried in downlink control information;

[0193] The downlink control information is either user equipment-specific information or user equipment-common information.

[0194] In some embodiments, the channel state request information is associated with an aperiodic channel state information report trigger state or a semi-persistent channel state information report trigger state.

[0195] In some embodiments, the semi-persistent channel state information reporting trigger state in the semi-persistent trigger state set information is activated or deactivated by code points; a control element signaling of the medium access control activates or deactivates at least one code point.

[0196] In some embodiments, the semi-persistent channel state information report trigger state in the semi-persistent trigger state set information is determined based on the channel state information request field in the downlink control information.

[0197] In some embodiments, the aperiodic channel state information report trigger state in the aperiodic trigger state set information is determined based on the channel state information request field in the downlink control information.

[0198] The information transmission process is illustrated using the following scheme:

[0199] Option 1

[0200] Scheme 1 provides two methods for indicating the switching information of the sending and receiving points.

[0201] A. Bitmap

[0202] When #TRP=1, TRP-ON-OFF information is not indicated (i.e., the sender / receiver point switch information is not indicated), meaning that TRP is not turned off during Single Transmission / Reception Point (STRP) transmission.

[0203] With #TRP>1, the N_TRP bit directly indicates the TRPs that are active and off during MTRP transmission via the TRP-ON-OFF information.

[0204] N_TRP is the maximum number of cooperative TRPs during CJT transmission, and N_TRP can be 2, 4, 6, 8, etc.

[0205] For example, when N_TRP=4, the initial CJT selects the TRPs associated with CSI-RS resource 1, CSI-RS resource 2, CSI-RS resource 3, and CSI-RS resource 4 for UE-coordinated transmission; upon receiving the TRP-ON-OFF information as 0011, it shuts down the TRPs associated with CSI-RS resource 4 and CSI-RS resource 3. Ultimately, only the TRPs associated with CSI-RS resource 1 and CSI-RS resource 2 are used for UE-coordinated transmission.

[0206] B. Case Index (Predefined Pattern Index)

[0207] When #TRP=1, the predefined pattern index information is not indicated (i.e., the sender / receiver point switch information is not indicated), meaning that TRP is not turned off during STRP transmission.

[0208] In #TRP>1, the TRPs that are activated and deactivated during MTRP transmission are indirectly indicated by the predefined pattern index information.

[0209] For example, if #TRP=2, and assuming that the TRPs associated with CSI-RS resource 1 and CSI-RS resource 2 are selected for UE collaborative transmission, then the TRPs associated with CSI-RS resource 1 or CSI-RS resource 2 can be turned off, that is, the corresponding predefined pattern index value is 0 or 1.

[0210] For example, when #TRP=3, assuming that the TRPs associated with CSI-RS resource 1, CSI-RS resource 2, and CSI-RS resource 3 are selected for UE cooperative transmission, when choosing to disable the TRP associated with one of the resources CSI-RS resource 1, CSI-RS resource 2, or CSI-RS resource 3, the predefinedpattern index can be set to 0, 1, and 2 to respectively disable only the TRP associated with CSI-RS resource 1, only the TRP associated with CSI-RS resource 2, and only the TRP associated with CSI-RS resource 3.

[0211] For example, with #TRP=3, assuming that the TRPs associated with CSI-RS resource 1, CSI-RS resource 2, and CSI-RS resource 3 are selected for UE-coordinated transmission, when choosing to disable the TRPs associated with 1 to 2 of CSI-RS resource 1, CSI-RS resource 2, or CSI-RS resource 3, the predefined patternindex can be set to 0, 1, 2, 3, 4, and 5 to respectively represent disabling only the TRP associated with CSI-RS resource 1, disabling only the TRP associated with CSI-RS resource 2, disabling only the TRP associated with CSI-RS resource 3, disabling both the TRPs associated with CSI-RS resource 1 and CSI-RS resource 2, disabling both the TRPs associated with CSI-RS resource 2 and CSI-RS resource 3, and disabling both the TRPs associated with CSI-RS resource 1 and CSI-RS resource 3.

[0212] The Bitmap scheme indicates that the signaling overhead of the switch information (TRP-ON-OFF-Infor) is positively correlated with the maximum number of cooperative TRPs N_TRP during CJT transmission; the Predefined Pattern index indicates that the signaling overhead of TRP-ON-OFF-Infor is positively correlated with the number of defined patterns.

[0213] Option 2

[0214] Option 2 provides different working modes (gears) and explains the working modes.

[0215] 1. Two-modes

[0216] The operating modes include two types: energy-saving mode and non-energy-saving mode (general mode / high-performance mode). Energy-saving mode allows multiple TRPs involved in CJT transmission to be shut down, requiring the closure of one or more TRPs to save network energy. Non-energy-saving mode (general mode / high-performance mode) allows multiple TRPs involved in CJT transmission to operate normally without requiring TRP shutdown.

[0217] The energy-saving mode or non-energy-saving mode can be indicated by explicit parameters. For example, the operating mode can be determined by the value of the parameter MTRP-NES-Enable-R2x. A value of 1 indicates that it is operating in energy-saving mode; a value of 0 indicates that it is operating in non-energy-saving mode.

[0218] Alternatively, the operating mode can be implicitly obtained through other parameters without explicitly configuring it. For example, configuring the transmit / receive point switch information (TRP-ON-OFF-Infor) indicates that it operates in energy-saving mode; otherwise, it operates in non-energy-saving mode.

[0219] 2. Three-or-more-modes

[0220] When three or more operating modes need to be configured, the allowed operating modes must include at least one or more of the following schemes:

[0221] Operating in non-energy-saving mode (general mode / high-performance mode);

[0222] Working in STRP mode;

[0223] Operating in MTRP mode with Q1 TRPs disabled;

[0224] Adaptive mode.

[0225] For example, the value of Q1 can be a positive integer greater than 1; the adaptive mode can adaptively select to work in MTRP or STRP transmission mode and choose not to close TRP or to close X TRPs (X can be 1, 2, or 3). STRP mode can also be called STRP transmission mode, and MTRP mode can also be called MTRP transmission mode.

[0226] For example, taking Q1 as values ​​of 1 and 2 respectively to illustrate the working modes, the allowed working modes include at least one or more of the following schemes:

[0227] Operating in non-energy-saving mode (general mode / high-performance mode);

[0228] Working in STRP mode;

[0229] Operates in MTRP mode with one TRP disabled;

[0230] Operating in MTRP mode with two TRPs disabled;

[0231] Adaptive mode.

[0232] To simplify the description, the above working modes are respectively referred to as mode1 (non-energy saving mode), mode2 (STRP mode), mode3 (MTRP mode with 1 TRP off), mode4 (MTRP mode with 2 TRP off), and mode5 (adaptive mode).

[0233] Among them, mode 1 means that multiple TRPs allowed for CJT transmission can operate normally without considering TRP shutdown; mode 2 means that multiple TRPs allowed for CJT transmission require shutting down one or more TRPs, leaving only one TRP for STRP transmission; mode 3 means that multiple TRPs allowed for CJT transmission require shutting down one TRP, while ensuring MTRP transmission; mode 4 means that multiple TRPs allowed for CJT transmission require shutting down two TRPs, while ensuring MTRP transmission; mode 5 means that multiple TRPs allowed for CJT transmission can selectively shut down or not shut down TRPs to achieve STRP or MTRP transmission. mode 1 operates in non-energy-saving mode; mode 5 adaptively selects to operate in energy-saving mode or non-energy-saving mode; modes 2 to 4 operate in energy-saving mode.

[0234] In some embodiments, the above operating mode is subject to the following constraints on the number of TRPs (#TRP) allowed for CJT transmission:

[0235] mode1 and mode5 are unrelated to #TRP.

[0236] Mode 2 requires #TRP = 2 / 3 / 4. When #TRP is 2, 3, and 4, TRPs 1, 2, and 3 need to be turned off respectively.

[0237] Mode 3 requires #TRP=3 / 4.

[0238] mode4 requires #TRP=4.

[0239] In some embodiments, mode 2 / 3 can be further subdivided into different working sub-modes based on #TRP, thereby generating more working modes.

[0240] In some embodiments, the above operating mode is subject to the following constraints with TRP-ON-OFF-Infor:

[0241] Mode 1 does not require the TRP-ON-OFF-Infor instruction.

[0242] When mode5 does not indicate TRP-ON-OFF-Infor, it means the machine is operating in non-energy-saving mode; when it indicates TRP-ON-OFF-Infor, it means the machine is operating in energy-saving mode.

[0243] Modes 2 through 4 require the TRP-ON-OFF-Infor instruction.

[0244] In some embodiments, the above operating modes are subject to the following constraints with TRP-ON-OFF-Infor and #TRP:

[0245] In mode 2, when #TRP=2, TRP-ON-OFF-Infor can use a minimum of 1 bit to indicate that one of the two TRPs is turned off; when #TRP=3, TRP-ON-OFF-Infor can use a minimum of 2 bits to indicate that one of the three TRPs is turned off; when #TRP=4, TRP-ON-OFF-Infor can use a minimum of 3 bits to indicate that two of the four TRPs are turned off. Similarly, when operating in the power-saving modes of modes 3-4 and mode 5, the bit width of TRP-ON-OFF-Infor is determined in the above manner.

[0246] When not explicitly distinguishing between STRP and MTTP transmission modes, the allowed operating modes include at least one or more of the following schemes:

[0247] Do not shut down TRP;

[0248] Shut down Q2 transmit and receive points;

[0249] Adaptive mode.

[0250] In this mode, not shutting down TRPs is the non-energy-saving mode; Q2 is a positive integer greater than or equal to 1; the adaptive mode can adaptively select to shut down Y TRPs or not shut down any TRPs. (Y can be 1, 2, or 3).

[0251] For example, taking Q2 as values ​​of 1, 2, and 3 respectively to illustrate the working modes, the allowed working modes include at least one or more of the following schemes:

[0252] Do not shut down TRP;

[0253] Close one TRP;

[0254] Close 2 TRPs;

[0255] Close 3 TRPs;

[0256] Adaptive mode.

[0257] To simplify the description, the above working modes are respectively referred to as mode A (no TRP shutdown), mode B (1 TRP shut down), mode C (2 TRPs shut down), mode D (3 TRPs shut down), and mode E (adaptive mode).

[0258] In some embodiments, the above operating mode is subject to the following constraints on the number of TRPs (#TRP) allowed for CJT transmission:

[0259] Modes A and E are unrelated to #TRP.

[0260] Mode B requires #TRP=2 / 3 / 4.

[0261] Mode C requires #TRP=3 / 4.

[0262] Mode D requires #TRP=4.

[0263] In some embodiments, the above-mentioned mode B / C can be further subdivided into different working sub-modes according to #TRP, thereby generating more working modes.

[0264] In some embodiments, the above operating mode is subject to the following constraints with TRP-ON-OFF-Infor:

[0265] Mode A does not require TRP-ON-OFF-Infor.

[0266] When Mode E does not indicate TRP-ON-OFF-Infor, it means the machine is operating in non-energy-saving mode; when it indicates TRP-ON-OFF-Infor, it means the machine is operating in energy-saving mode.

[0267] Modes B through D require the TRP-ON-OFF-Infor instruction.

[0268] In some embodiments, the above operating modes are subject to the following constraints with TRP-ON-OFF-Infor and #TRP:

[0269] In Mode B, when #TRP=2, the TRP-ON-OFF-Infor setting can use a minimum of 1 bit to indicate that one of the two TRPs is off; when #TRP=3, the TRP-ON-OFF-Infor setting can use a minimum of 2 bits to indicate that one of the three TRPs is off; and when #TRP=4, the TRP-ON-OFF-Infor setting can use a minimum of 2 bits to indicate that one of the four TRPs is off. Similarly, when operating in the power-saving modes of modes C-D and E, the bit width of TRP-ON-OFF-Infor is determined in the same way.

[0270] When configuring the operating mode via explicit parameters, assuming the selectable operating modes are mode A through mode E, direct parameters such as MTRP-NES-MODE-A, MTRP-NES-MODE-B, MTRP-NES-MODE-C, MTRP-NES-MODE-D, and MTRP-NES-MODE-E can be used to represent mode A, mode B, mode C, mode D, and mode E, respectively. Alternatively, a global parameter such as MTRP-NES-MODE-TYPE (i.e., operating mode information) can be defined. This parameter is 3 bits wide, and its values ​​'000', '001', '010', '011', and '100' represent mode A, mode B, mode C, mode D, and mode E, respectively. Furthermore, considering operation in non-energy-saving mode, there is no need to indicate TRP-ON-OFF-Infor; therefore, it is not necessary to explicitly indicate the operating mode. In the example above, this means that mode A is not required.

[0271] If the operating mode cannot be explicitly configured, it needs to be obtained implicitly through other parameters, such as TRP-ON-OFF-Infor and #TRP.

[0272] Option 3

[0273] Option 3 explains the configuration components of the measurement report.

[0274] CSI sub-reports include at least one of the following information: CSI-RS resource set information, CSI sub-report identification information, transmit / receive point switch information, operating mode information, and power set information.

[0275] For example, the resource set information of CSI-RS can be nzp-CSI-RS-ResourceList-MTRP-NES; the transmit / receive point switch information can be TRP-ON-OFF-Infor; the operating mode information can be MTRP-NES-MODE-TYPE; and the power set information can be powerOffsetList-MTRP-NES. The CSI sub-report identifier information can be CSI-ReportSubConfig-MTRP-NES ID.

[0276] The first indication information in this application embodiment may be a CSI sub-report, and the CSI sub-report may be CSI-ReportSubConfig-MTRP-NES.

[0277] This scheme includes one or more CSI sub-reports under one or more operating mode (gear) configurations, carried in a channel state information report configuration CSI-ReportConfig.

[0278] For example, a CSI-ReportSubConfig-MTRP-NES-list can be configured under a CSI-ReportConfig. Each CSI-ReportSubConfig-MTRP-NES-list contains L CSI-ReportSubConfig-MTRP-NES IDs. Each CSI-ReportSubConfig-MTRP-NES ID identifies a CSI-ReportSubConfig-MTRP-NES, and each CSI-ReportSubConfig-MTRP-NES includes the following parameters:

[0279] CSI-ReportSubConfig-MTRP-NES ID;

[0280] nzp-CSI-RS-ResourceList-MTRP-NES;

[0281] It can also include the following parameters:

[0282] TRP-ON-OFF-Infor;

[0283] MTRP-NES-MODE-TYPE;

[0284] powerOffsetList-MTRP-NES.

[0285] Where L is an integer, and L can take the values ​​1, 2, 3, 4, 5, 6, 7, and 8. When L = 1, it means that the CSI report contains one CSI sub-report, that is, only CSI information under one working mode is reported; when L > 1, it means that the CSI report contains multiple CSI sub-reports, and each CSI sub-report corresponds to CSI information of a specific configuration (TRP-ON-OFF-Infor) under one working mode.

[0286] The CSI-ReportSubConfig-MTRP-NES ID is used to identify a CSI-ReportSubConfig-MTRP-NES.

[0287] The nzp-CSI-RS-ResourceList-MTRP-NES includes N nzp-CSI-RS-Resource IDs, which correspond to N different TRPs that can be used for CJT transmission. N can be 2, 3, or 4.

[0288] TRP-ON-OFF-Infor is used to directly or indirectly indicate the switching information of multiple TRPs that can be used for CJT transmission. The bit width of TRP-ON-OFF-Infor is N1.

[0289] When N1 = N, the TRP-ON-OFF-Infor bits from high to low correspond to the IDs in nzp-CSI-RS-ResourceList-MTRP-NES from high to low. That is, each bit of N1 directly indicates whether the TRP corresponding to each nzp-CSI-RS-Resource in nzp-CSI-RS-ResourceList-MTRP-NES is enabled or disabled.

[0290] Assume that a value of 0 for each bit indicates that the corresponding TRP is turned off. For example, if TRP-ON-OFF-Infor is '110', it means that the TRP with the smallest nzp-CSI-RS-Resource ID value in nzp-CSI-RS-ResourceList-MTRP-NES is turned off.

[0291] TRP-ON-OFF-Infor cannot indicate that all TRPs are turned off. If we assume that each bit value of 0 indicates that the corresponding TRP is turned off, then TRP-ON-OFF-Infor cannot be '00', '000', or '0000'. Similarly, if we assume that each bit value of 1 indicates that the corresponding TRP is turned off, then TRP-ON-OFF-Infor cannot be '11', '111', or '1111'.

[0292] When N1 < N, the bit width of TRP-ON-OFF-Infor is less than nzp-CSI-RS-ResourceList-MTRP-NES. Each bit in TRP-ON-OFF-Infor does not directly correspond to the TRP associated with the CJT NZP-CSI-RS resource. Each value of TRP-ON-OFF-Infor corresponds to a predefined pattern.

[0293] For example, when N = 2 and one TRP is selected to be turned off, N1 = 1. When the value of TRP-ON-OFF-Infor is '0', it means turning off the TRP with the smallest nzp-CSI-RS-Resource ID value in nzp-CSI-RS-ResourceList-MTRP-NES; when the value of TRP-ON-OFF-Infor is '1', it means turning off the TRP with the largest nzp-CSI-RS-Resource ID value in nzp-CSI-RS-ResourceList-MTRP-NES.

[0294] For example, when N = 3 and one TRP is selected to be turned off, N1 = 2. When the value of TRP-ON-OFF-Infor is '00', it means turning off the TRP with the smallest nzp-CSI-RS-Resource ID value in nzp-CSI-RS-ResourceList-MTRP-NES; when the value of TRP-ON-OFF-Infor is '01', it means turning off the TRP with the second largest nzp-CSI-RS-Resource ID value in nzp-CSI-RS-ResourceList-MTRP-NES; when the value of TRP-ON-OFF-Infor is '10', it means turning off the TRP with the largest nzp-CSI-RS-Resource ID value in nzp-CSI-RS-ResourceList-MTRP-NES.

[0295] For example, when N=3, and two TRPs are selected to be closed, N1=2. When TRP-ON-OFF-Infor is '00', it means closing the two TRPs with the smallest and second largest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES; when TRP-ON-OFF-Infor is '01', it means closing the two TRPs with the second largest and largest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES; when TRP-ON-OFF-Infor is '10', it means closing the two TRPs with the largest and smallest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES.

[0296] For example, when N=4, and one TRP is selected to be turned off, N1=2. When TRP-ON-OFF-Infor is '00', it means the TRP with the smallest nzp-CSI-RS-Resource ID in nzp-CSI-RS-ResourceList-MTRP-NES is turned off; when TRP-ON-OFF-Infor is '01', it means the TRP with the second smallest nzp-CSI-RS-Resource ID in nzp-CSI-RS-ResourceList-MTRP-NES is turned off; when TRP-ON-OFF-Infor is '10', it means the TRP with the second largest nzp-CSI-RS-Resource ID in nzp-CSI-RS-ResourceList-MTRP-NES is turned off; and when TRP-ON-OFF-Infor is '11', it means the TRP with the largest nzp-CSI-RS-Resource ID in nzp-CSI-RS-ResourceList-MTRP-NES is turned off.

[0297] For example, when N=4, and two TRPs are selected to be turned off, N1=3. When TRP-ON-OFF-Infor is '000', it means turning off the two TRPs with the smallest and second smallest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES; when TRP-ON-OFF-Infor is '001', it means turning off the two TRPs with the second smallest and second largest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES; when TRP-ON-OFF-Infor is '010', it means turning off the two TRPs with the second largest and largest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES. A TRP-ON-OFF-Infor value of '011' indicates that the two TRPs with the smallest and second largest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES are closed; a TRP-ON-OFF-Infor value of '100' indicates that the two TRPs with the second smallest and largest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES are closed; a TRP-ON-OFF-Infor value of '101' indicates that the two TRPs with the smallest and largest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES are closed.

[0298] For example, when N=4, and three TRPs are selected to be closed, N1=2. When TRP-ON-OFF-Infor is '00', it means closing the three TRPs in nzp-CSI-RS-ResourceList-MTRP-NES with the largest, second largest, and second smallest nzp-CSI-RS-Resource ID values; when TRP-ON-OFF-Infor is '01', it means closing the three TRPs in nzp-CSI-RS-ResourceList-MTRP-NES with the largest, second largest, and smallest nzp-CSI-RS-Resource ID values; when TRP-ON-OFF-Infor is '10', it means closing the three TRPs in nzp-CSI-RS-ResourceList-MTRP-NES with the largest, second smallest, and smallest nzp-CSI-RS-Resource ID values. A TRP-ON-OFF-Infor value of '11' indicates that the three TRPs with the smallest, second smallest, and second largest nzp-CSI-RS-Resource ID values ​​in nzp-CSI-RS-ResourceList-MTRP-NES are disabled.

[0299] If MTRP-NES-MODE-TYPE is configured, its value can be a parameter that directly represents the working mode, such as MTRP-NES-MODE-A, MTRP-NES-MODE-B, MTRP-NES-MODE-C, MTRP-NES-MODE-D, and MTRP-NES-MODE-E; or it can use an M1 bit binary number to indicate the working mode, where M1 can be 3.

[0300] If MTRP-NES-MODE-TYPE is configured, and the indicated operating mode is mode 2 to mode 5 or mode B to mode E corresponding to the Three-or-more-modes section, when TRP-ON-OFF-Infor is indicated, the value of N, the number of nzp-CSI-RS-Resources in nzp-CSI-RS-ResourceList-MTRP-NES, can be limited. For example,

[0301] mode2, N = 2 / 3 / 4;

[0302] mode 3, N = 3 / 4;

[0303] mode 4, N = 4;

[0304] Mode B, N = 2 / 3 / 4;

[0305] mode C, N = 3 / 4;

[0306] mode D,N=4.

[0307] If MTRP-NES-MODE-TYPE is configured and the operating mode is indicated as non-energy-saving mode, then TRP-ON-OFF-Infor does not need to be configured.

[0308] When MTRP-NES-MODE-TYPE is not configured, the operating mode is not explicitly distinguished; it is implicitly determined based on the configuration of TRP-ON-OFF-Infor and nzp-CSI-RS-ResourceList-MTRP-NES. In some embodiments, if operating in non-energy-saving mode, TRP-ON-OFF-Infor does not need to be configured; if operating in energy-saving mode, TRP-ON-OFF-Infor needs to be configured, and the operating mode is determined based on the TRP's on / off status indicated by TRP-ON-OFF-Infor and the number N of nzp-CSI-RS-Resources in nzp-CSI-RS-ResourceList-MTRP-NES.

[0309] If MTRP-NES-MODE-TYPE is configured at the CSI-ReportConfig level, then multiple CSI-ReportSubConfigs under the same CSI-ReportConfig can only use the same MTRP-NES-MODE-TYPE.

[0310] If MTRP-NES-MODE-TYPE is configured at the CSI-ReportSubConfig level, then multiple CSI-ReportSubConfigs under the same CSI-ReportConfig can be configured with the same or different MTRP-NES-MODE-TYPE.

[0311] The powerOffsetList-MTRP-NES consists of K1 elements, each of which is an integer from 0 to 23. Each element represents the power offset between the PDSCH RE and the corresponding NZP CSI-RS RE.

[0312] When K1 = N, each element in powerOffsetList-MTRP-NES corresponds sequentially to each nzp-CSI-RS-Resource ID in nzp-CSI-RS-ResourceList-MTRP-NES. In this case, power adjustments between different TRPs do not consider whether the TRP is closed.

[0313] When K1 < N, K1 is the number of TRPs still working after TRP-ON-OFF. Each element in powerOffsetList-MTRP-NES corresponds in sequence to each nzp-CSI-RS-Resource ID among the enabled TRPs associated with nzp-CSI-RS-ResourceList-MTRP-NES. At this time, power adjustment between different TRPs is only for the enabled TRPs.

[0314] If powerOffsetList-MTRP-NES is not configured, the TRP-ON-OPF scheme does not consider power adjustment between different TRPs.

[0315] Solution 4

[0316] CSI reports include periodic CSI reports, semi-persistent CSI reports, and aperiodic CSI reports. Among them, periodic CSI reports do not require dynamic signaling such as MAC-CE or DCI to trigger, and the periodic CSI reports can be determined after the UE receives the corresponding RRC signaling. Aperiodic CSI reports can only be triggered by DCI. Semi-persistent CSI reports are triggered by DCI or MAC-CE.

[0317] Triggering an aperiodic or semi-persistent CSI report is at least based on one of the following elements:

[0318] Aperiodic trigger status set information;

[0319] Semi-persistent trigger status set information;

[0320] Channel state information sub-report set information;

[0321] Channel state information report set information;

[0322] Channel state information report identification information;

[0323] Channel state information sub-report identification information;

[0324] Channel state information report set selection information;

[0325] Channel state information sub-report set selection information;

[0326] Channel state request information.

[0327] The aperiodic trigger status set information includes M1 aperiodic channel state information report trigger statuses, and one aperiodic channel state information report trigger status is associated with a channel state information sub-report information set or a channel state information report set information;

[0328] The semi-persistent trigger state set information includes M2 semi-persistent channel state information report trigger states. Each semi-persistent channel state information report trigger state is associated with a channel state information report identifier or a channel state information sub-report identifier.

[0329] The channel state information sub-report set information includes L1 channel state information sub-report identifiers;

[0330] The channel state information report set includes L2 channel state information report identifiers;

[0331] The channel state information report identifier information includes a channel state information report identifier;

[0332] The channel state information sub-report identifier information includes a channel state information sub-report identifier;

[0333] The channel state information report set selection information is used to select one or more channel state information reports from the configured channel state information report set information;

[0334] The channel state information sub-report set selection information is used to select one or more channel state information sub-reports from the configured channel state information sub-report set information;

[0335] Where M1, M2, L1, and L2 are all positive integers.

[0336] For example, the aperiodic trigger state set information can be the aperiodic CSI trigger state set information CSI-AperiodicTriggerStateList;

[0337] The trigger state for the aperiodic channel state information report can be CSI-AperiodicTriggerState;

[0338] The semi-persistent trigger state set information can be the semi-persistent CSI trigger state set information CSI-SemiPersistentOnPUSCH-TriggerStateList;

[0339] The semi-persistent channel state information report trigger state can be CSI-SemiPersistentOnPUSCH-TriggerState;

[0340] CSI sub-report collection information can be associated-MTP-NES-Sub-ReportConfigInfoList;

[0341] CSI report collection information can be associatedReportConfigInfoList;

[0342] CSI sub-report set selection information can be MTP-NES-Sub-Report-selection;

[0343] CSI report collection selection information can be MTP-NES--Report-selection;

[0344] The CSI sub-report ID information can be CSI-ReportSubConfig-MTRP-NES ID;

[0345] The CSI report ID information can be CSI-ReportConfig-ID.

[0346] Option 4 explains the method for triggering measurement reports.

[0347] 1. DCI-Based Non-Periodic CSI Report

[0348] DCI-triggered non-periodic CSI reports can be achieved through any one or more of the four methods described below: A, B, C, and D.

[0349] The non-periodic CSI trigger state set information CSI-AperiodicTriggerStateList contains M1 CSI-AperiodicTriggerStates.

[0350] A. The CSI request value of DCI indicates a CSI-AperiodicTriggerState in the CSI-AperiodicTriggerStateList. Each CSI-AperiodicTriggerState is associated with an associated-MTP-NES-Sub-ReportConfigInfoList. This list is associated with L1 CSI-ReportSubConfig-MTRP-NES IDs, where L1 is a positive integer.

[0351] This approach considers the CSI sub-report level and can trigger one or more non-periodic CSI sub-reports of MTRP-NES under the same or different CSI-ReportConfig configurations.

[0352] B. The CSI request value in DCI indicates a CSI-AperiodicTriggerState in the CSI-AperiodicTriggerStateList. Each CSI-AperiodicTriggerState is associated with an associated-MTP-NES-Sub-ReportConfigInfoList. This list is associated with L1 CSI-ReportSubConfig-MTRP-NES IDs, where L1 is a positive integer. A new field, such as MTP-NES-Sub-Report-selection, is added to DCI. MTP-NES-Sub-Report-selection is used to select one or more sub-reports from a configured set of sub-reports.

[0353] This approach considers the CSI sub-report level and allows selection of configured CSI sub-reports, which can trigger one or more non-periodic CSI sub-reports from MTRP-NES under the same or different CSI-ReportConfig configurations.

[0354] C. The CSI request value of DCI indicates a CSI-AperiodicTriggerState in the CSI-AperiodicTriggerStateList. Each CSI-AperiodicTriggerState is associated with an associatedReportConfigInfoList. This list is associated with L2 CSI-ReportConfig IDs, where L2 is a positive integer.

[0355] This approach considers the CSI reporting level and can trigger one or more non-periodic CSI sub-reports of MTRP-NES under one or more CSI-ReportConfig configurations.

[0356] D. The CSI request value in DCI indicates a CSI-AperiodicTriggerState in the CSI-AperiodicTriggerStateList. Each CSI-AperiodicTriggerState is associated with an associatedReportConfigInfoList. This list is associated with L2 CSI-ReportConfig IDs, where L2 is a positive integer. A new field, such as MTP-NES--Report-selection, is added to DCI. MTP-NES--Report-selection is used to select one or more reports from a configured set of reports.

[0357] This approach considers the CSI reporting level and also allows for the selection of configured CSI sub-reports, which can trigger one or more MTRP-NES CSI aperiodic measurement sub-reports under one or more CSI-ReportConfig configurations.

[0358] 2. DCI-Based Semi-Continuous CSI Report

[0359] DCI-triggered semi-persistent CSI reports can be achieved through any one or more of the four methods described below: A, B, C, and D.

[0360] The semi-persistent CSI trigger state set information CSI-SemiPersistentOnPUSCH-TriggerStateList contains M2 CSI-SemiPersistentOnPUSCH-TriggerStates.

[0361] A. The CSI request value of DCI indicates a CSI-SemiPersistentOnPUSCH-TriggerState in the CSI-SemiPersistentOnPUSCH-TriggerStateList. Each CSI-SemiPersistentOnPUSCH-TriggerState is associated with an associated-MTP-NES-Sub-ReportConfigInfoList, which is associated with L1 CSI-ReportSubConfig-MTRP-NES IDs. Here, L1 is a positive integer.

[0362] This approach considers the CSI sub-report level and can trigger one or more semi-persistent CSI sub-reports from MTRP-NES under the same or different CSI-ReportConfig configurations.

[0363] B. The CSI request value in DCI indicates a CSI-SemiPersistentOnPUSCH-TriggerState in the CSI-SemiPersistentOnPUSCH-TriggerStateList. Each CSI-SemiPersistentOnPUSCH-TriggerState is associated with an associated-MTP-NES-Sub-ReportConfigInfoList. This list is associated with L1 CSI-ReportSubConfig-MTRP-NES IDs, where L1 is a positive integer. A new field, such as MTP-NES-Sub-Report-selection, is added to DCI. MTP-NES-Sub-Report-selection is used to select one or more sub-reports from a configured set of sub-reports.

[0364] This approach considers the CSI sub-report level and allows selection of configured CSI sub-reports, which can trigger one or more semi-persistent CSI sub-reports from MTRP-NES under the same or different CSI-ReportConfig configurations.

[0365] C. The CSI request value of DCI indicates a CSI-SemiPersistentOnPUSCH-TriggerState in the CSI-SemiPersistentOnPUSCH-TriggerStateList. Each CSI-SemiPersistentOnPUSCH-TriggerState is associated with an associatedReportConfigInfoList. This list is associated with L2 CSI-ReportConfig IDs, where L2 is a positive integer.

[0366] This approach considers the CSI reporting level and can trigger one or more semi-persistent CSI sub-reports from one or more MTRP-NES under one or more CSI-ReportConfig configurations.

[0367] D. The CSI request value in DCI indicates a CSI-SemiPersistentOnPUSCH-TriggerState in the CSI-SemiPersistentOnPUSCH-TriggerStateList. Each CSI-SemiPersistentOnPUSCH-TriggerState is associated with an associatedReportConfigInfoList. This list is associated with L2 CSI-ReportConfig IDs, where L2 is a positive integer. A new field, such as MTP-NES--Report-selection, is added to DCI. MTP-NES--Report-selection is used to select one or more reports from a configured set of reports.

[0368] This approach considers the CSI reporting level and also allows for the selection of configured CSI sub-reports, which can trigger one or more MTRP-NES CSI semi-continuous measurement sub-reports under one or more CSI-ReportConfig configurations.

[0369] When the above DCI is UE-specific, it means that different UEs are configured with aperiodic or semi-persistent CSI reporting for MTRP-NES respectively; when the above DCI is UE-group-common, it means that multiple (groups) UEs are jointly configured with the same aperiodic or semi-persistent CSI reporting for MTRP-NES.

[0370] 3. MAC-CE-Based Semi-Continuous CSI Report

[0371] MAC-CE triggering of a semi-persistent CSI report can be achieved through any one or more of the two methods A and B described below.

[0372] The semi-persistent CSI trigger state set information CSI-SemiPersistentOnPUSCH-TriggerStateList contains M2 CSI-SemiPersistentOnPUSCH-TriggerStates.

[0373] A. A MAC-CE codepoint value is associated with one CSI-ReportSubConfig-MTRP-NES ID. Activating or deactivating a codepoint with MAC-CE triggers or stops the CSI measurement sub-report of the MTRP-NES associated with that codepoint. A single MAC-CE command can activate or deactivate P1 codepoints simultaneously. Here, P1 is a positive integer, with typical values ​​including 1, 2, 4, 8, 16, and 32.

[0374] This scheme considers the CSI sub-report level, and can simultaneously trigger the CSI measurement sub-reports of MTRP-NES under different CSI-ReportSubConfigs with the same or different CSI-ReportConfig configurations through a single MAC-CE signaling.

[0375] B. A MAC-CE codepoint value is associated with one CSI-ReportConfig-ID. Activating or deactivating a codepoint with MAC-CE triggers or stops one or more MTRP-NES CSI measurement sub-reports under a CSI-ReportConfig configuration associated with that codepoint. A single MAC-CE command can activate or deactivate P2 codepoints simultaneously. P2 is a positive integer, with typical values ​​including 1, 2, 4, 8, 16, and 32.

[0376] This approach considers the CSI reporting level, allowing a single MAC-CE signaling message to simultaneously trigger one or more CSI-ReportConfig configurations for all MTRP-NES CSI measurement sub-reports.

[0377] Figure 3 is a schematic diagram of an information transmission device provided in an embodiment. The device is applied to a first communication node. As shown in Figure 3, the device includes: an indication information receiving module 310 and a measurement report sending module 320.

[0378] The instruction information receiving module 310 is used to receive first instruction information and second instruction information. The first instruction information includes at least channel state information sub-report identifier information, and the channel state information sub-report identifier information corresponds to transmit / receive point switch information.

[0379] The measurement report sending module 320 is used to measure the channel state information according to the first indication information and the second indication information, and send a measurement report of the channel state information.

[0380] The information transmission device provided in this application embodiment receives first indication information and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to transmit / receive point switch information. It measures channel state information based on the first and second indication information and sends a channel state information measurement report to achieve network energy saving. By measuring channel state information through the first and second indication information, where the first indication information includes at least channel state information sub-report identifier information, which corresponds to transmit / receive point switch information, it achieves transmit / receive point switch control, thereby realizing network energy saving. It measures channel state information based on resources after the switch and reports a channel state information measurement report, effectively reducing energy consumption.

[0381] In some embodiments, the first indication information further includes at least one of the following:

[0382] Channel state information refers to the set of signal resources;

[0383] Send and receive point switch information;

[0384] Working mode information;

[0385] Power set information.

[0386] In some embodiments, the channel state information reference signal resource set information includes N1 channel state information reference signal resource identifiers associated with transmit and receive points used for coherent transmission.

[0387] In some embodiments, the transmit / receive point switch information is used to display or implicitly indicate the switch status of channel state information reference signal resources associated with at least one transmit / receive point of coherent transmission, the switch status including at least one of on or off.

[0388] In some embodiments, the transmit / receive point switch information includes at least one of the following:

[0389] Bitmap;

[0390] Case Index.

[0391] In some embodiments, the transmit / receive point switch information is a bitmap with a bit width of N1. Each bit of the bitmap corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information. Each bit in the bitmap indicates the switch state of the associated channel state information reference signal resource.

[0392] In some embodiments, all bits of the bitmap may have at least two possible values.

[0393] In some embodiments, the transmit / receive point switch information is a case index, the case index being N2, where N2 is a non-negative integer, and the case index implicitly indicates the switch status of the channel state information reference signal resource in the channel state information reference signal resource set information.

[0394] In some embodiments, the operating mode information includes at least one of the following operating modes:

[0395] Non-energy-saving mode;

[0396] Energy-saving mode;

[0397] Single sender / receiver mode;

[0398] Multiple transmit / receive point mode with Q1 transmit / receive points disabled, where Q1 is a positive integer greater than or equal to 1;

[0399] Close Q2 transmit / receive points, where Q2 is a positive integer greater than or equal to 1;

[0400] Adaptive mode.

[0401] In some embodiments, the number of elements in the channel state information reference signal resource set information is N1, where N1 is a positive integer;

[0402] The operating mode is a single transmit / receive point mode, and N1 is greater than or equal to 2;

[0403] The operating mode is a multi-transmitter / receiver mode with Q1 transmit / receiver point disabled, and the difference between N1 and Q1 is greater than or equal to 2;

[0404] The operating mode is to shut down Q2 transmitting and receiving points, and the difference between N1 and Q2 is greater than or equal to 1.

[0405] In some embodiments, the transmit / receive point switch information is configured when the operating mode includes at least one of the following:

[0406] Energy-saving mode;

[0407] Single sender / receiver mode;

[0408] Multiple transmit / receive point mode and Q1 transmit / receive points are disabled;

[0409] Shut down Q2 transmit and receive points;

[0410] Adaptive mode.

[0411] In some embodiments, the power set information is used to adjust the transmission power of some or all of the channel state information reference signal resources associated with at least two transmit-receive points for coherent transmission; the power set information includes K1 elements, and each element represents the power deviation between a physical downlink shared channel resource element and a corresponding channel state information reference signal resource element;

[0412] When K1 = N1, each element in the power set information corresponds one-to-one with each channel state information reference signal resource in the channel state information reference signal resource set information; when K1 < N1, each element in the power set information corresponds one-to-one with each channel state information reference signal resource that is turned on after the transmit-receive point switch control, and the N1 is the number of elements in the channel state information reference signal resource set information.

[0413] In some embodiments, the first indication information is included in a channel state information sub-report configuration; one or more of the channel state information sub-report configurations are included in a channel state information report configuration, and the channel state information report configuration is carried on the radio resource control.

[0414] In some embodiments, the second indication information includes at least one of the following:

[0415] Aperiodic trigger state set information;

[0416] Semi-persistent trigger state set information;

[0417] Channel state information sub-report set information;

[0418] Channel state information report set information;

[0419] Channel state information report identification information;

[0420] Channel state information sub-report identification information;

[0421] Channel state information report set selection information;

[0422] Channel state information sub-report set selection information;

[0423] Channel state request information. <000××××>In some embodiments, the aperiodic trigger state set information includes M1 aperiodic channel state information report trigger states, and one aperiodic channel state information report trigger state is associated with a channel state information sub-report information set or a channel state information report set information;

[0425] The semi-persistent trigger state set information includes M2 semi-persistent channel state information report trigger states, and each semi-persistent channel state information report trigger state is associated with a channel state information report identifier or a channel state information sub-report identifier.

[0426] The channel state information sub-report set information includes L1 channel state information sub-report identifiers;

[0427] The channel state information report set information includes L2 channel state information report identifiers;

[0428] The channel state information report identifier information includes a channel state information report identifier;

[0429] The channel state information sub-report identifier information includes a channel state information sub-report identifier;

[0430] Where M1, M2, L1, and L2 are all positive integers.

[0431] In some embodiments, the channel state information report set selection information is used to select one or more channel state information reports from the configured channel state information report set information;

[0432] The channel state information sub-report set selection information is used to select one or more channel state information sub-reports from the configured channel state information sub-report set information.

[0433] In some embodiments, the channel state information report set selection information selects channel state information reports using a bitmap, wherein the length of the bitmap is the same as the number of channel state information report identifiers included in the channel state information report set information.

[0434] The channel state information sub-report set selection information selects channel state information sub-reports using a bitmap, and the length of the bitmap is the same as the number of channel state information sub-report identifiers included in the channel state information sub-report set information.

[0435] In some embodiments, at least one of the non-periodic trigger state set information, the semi-persistent trigger state set information, the channel state information sub-report set information, and the channel state information report set information is carried in radio control resources.

[0436] In some embodiments, at least one of the channel state information report set selection information, the channel state information sub-report set selection information, and the channel state request information is carried in downlink control information;

[0437] The downlink control information is either user equipment-specific information or user equipment-common information.

[0438] In some embodiments, the channel state request information is associated with an aperiodic channel state information report trigger state or a semi-persistent channel state information report trigger state.

[0439] In some embodiments, the semi-persistent channel state information reporting trigger state in the semi-persistent trigger state set information is activated or deactivated by code points; a control element signaling of the medium access control activates or deactivates at least one code point.

[0440] In some embodiments, the semi-persistent channel state information report trigger state in the semi-persistent trigger state set information is determined based on the channel state information request field in the downlink control information.

[0441] In some embodiments, the aperiodic channel state information report trigger state in the aperiodic trigger state set information is determined based on the channel state information request field in the downlink control information.

[0442] The information transmission device proposed in this embodiment belongs to the same inventive concept as the information transmission method proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as performing the information transmission method.

[0443] Figure 4 is a schematic diagram of another information transmission device provided in one embodiment. The device is applied to a second communication node. As shown in Figure 4, the device includes: an indication information sending module 410 and a measurement report receiving module 420.

[0444] The instruction information sending module 410 is used to send first instruction information and second instruction information. The first instruction information includes at least channel state information sub-report identifier information, and the channel state information sub-report identifier information corresponds to the send-receive-point switch information.

[0445] The measurement report receiving module 420 is used to receive a measurement report of channel state information, which is a report generated by measuring channel state information based on the first indication information and the second indication information.

[0446] The information transmission device provided in this application embodiment sends first indication information and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to transmit / receive point switch information. It receives a measurement report of channel state information, which is a report generated by measuring channel state information based on the first and second indication information, thereby achieving network energy saving. It instructs the measurement of channel state information through the first and second indication information. The first indication information includes at least channel state information sub-report identifier information, which corresponds to transmit / receive point switch information, thereby achieving transmit / receive point switch control and thus network energy saving. It receives a measurement report of channel state information based on the resources after the switch and reports the measurement of channel state information, effectively reducing energy consumption.

[0447] In some embodiments, the first indication information further includes at least one of the following:

[0448] Channel state information refers to the set of signal resources;

[0449] Send and receive point switch information;

[0450] Working mode information;

[0451] Power set information.

[0452] In some embodiments, the channel state information reference signal resource set information includes N1 channel state information reference signal resource identifiers associated with transmit and receive points used for coherent transmission.

[0453] In some embodiments, the transmit / receive point switch information is used to display or implicitly indicate the switch status of channel state information reference signal resources associated with at least one transmit / receive point of coherent transmission, the switch status including at least one of on or off.

[0454] In some embodiments, the transmit / receive point switch information includes at least one of the following:

[0455] Bitmap;

[0456] Case Index.

[0457] In some embodiments, the transmit / receive point switch information is a bitmap with a bit width of N1. Each bit of the bitmap corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information. Each bit in the bitmap indicates the switch state of the associated channel state information reference signal resource.

[0458] In some embodiments, all bits of the bitmap may have at least two possible values.

[0459] In some embodiments, the transmit / receive point switch information is a case index, the case index being N2, where N2 is a non-negative integer, and the case index implicitly indicates the switch status of the channel state information reference signal resource in the channel state information reference signal resource set information.

[0460] In some embodiments, the operating mode information includes at least one of the following operating modes:

[0461] Non-energy-saving mode;

[0462] Energy-saving mode;

[0463] Single sender / receiver mode;

[0464] Multiple transmit / receive point mode with Q1 transmit / receive points disabled, where Q1 is a positive integer greater than or equal to 1;

[0465] Close Q2 transmit / receive points, where Q2 is a positive integer greater than or equal to 1;

[0466] Adaptive mode.

[0467] In some embodiments, the number of elements in the channel state information reference signal resource set information is N1, where N1 is a positive integer;

[0468] The operating mode is a single transmit / receive point mode, and N1 is greater than or equal to 2;

[0469] The operating mode is a multi-transmitter / receiver mode with Q1 transmit / receiver point disabled, and the difference between N1 and Q1 is greater than or equal to 2;

[0470] The operating mode is to shut down Q2 transmitting and receiving points, and the difference between N1 and Q2 is greater than or equal to 1.

[0471] In some embodiments, the transmit / receive point switch information is configured when the operating mode includes at least one of the following:

[0472] Energy-saving mode;

[0473] Single sender / receiver mode;

[0474] Multiple transmit / receive point mode and Q1 transmit / receive points are disabled;

[0475] Shut down Q2 transmit and receive points;

[0476] Adaptive mode.

[0477] In some embodiments, the power set information is used to adjust the transmission power of some or all of the channel state information reference signal resources associated with at least two transmit-receive points for coherent transmission; the power set information includes K1 elements, and each element represents the power deviation between a physical downlink shared channel resource element and a corresponding channel state information reference signal resource element.

[0478] When K1 = N1, each element in the power set information corresponds one-to-one with each channel state information reference signal resource in the channel state information reference signal resource set information; when K1 < N1, each element in the power set information corresponds one-to-one with each channel state information reference signal resource that is turned on after the transmit-receive point switch control, where N1 is the number of elements in the channel state information reference signal resource set information.

[0479] In some embodiments, the first indication information is included in a channel state information sub-report configuration; one or more of the channel state information sub-report configurations are included in a channel state information report configuration, and the channel state information report configuration is carried on radio resource control.

[0480] In some embodiments, the second indication information includes at least one of the following:

[0481] Aperiodic trigger state set information;

[0482] Semi-persistent trigger state set information;

[0483] Channel state information sub-report set information;

[0484] Channel state information report set information;

[0485] Channel state information report identification information;

[0486] Channel state information sub-report identification information;

[0487] Channel state information report set selection information;

[0488] Channel state information sub-report set selection information;

[0489] Channel state request information.

[0490] In some embodiments, the aperiodic trigger state set information includes M1 aperiodic channel state information report trigger states, and one aperiodic channel state information report trigger state is associated with a channel state information sub-report information set or a channel state information report set information.

[0491] The semi-persistent trigger state set information includes M2 semi-persistent channel state information report trigger states, and each semi-persistent channel state information report trigger state is associated with a channel state information report identifier or a channel state information sub-report identifier.

[0492] The channel state information sub-report set information includes L1 channel state information sub-report identifiers;

[0493] The channel state information report set information includes L2 channel state information report identifiers;

[0494] The channel state information report identifier information includes a channel state information report identifier;

[0495] The channel state information sub-report identifier information includes a channel state information sub-report identifier;

[0496] Where M1, M2, L1, and L2 are all positive integers.

[0497] In some embodiments, the channel state information report set selection information is used to select one or more channel state information reports from the configured channel state information report set information;

[0498] The channel state information sub-report set selection information is used to select one or more channel state information sub-reports from the configured channel state information sub-report set information.

[0499] In some embodiments, the channel state information report set selection information selects channel state information reports using a bitmap, wherein the length of the bitmap is the same as the number of channel state information report identifiers included in the channel state information report set information.

[0500] The channel state information sub-report set selection information selects channel state information sub-reports using a bitmap, and the length of the bitmap is the same as the number of channel state information sub-report identifiers included in the channel state information sub-report set information.

[0501] In some embodiments, at least one of the non-periodic trigger state set information, the semi-persistent trigger state set information, the channel state information sub-report set information, and the channel state information report set information is carried in radio control resources.

[0502] In some embodiments, at least one of the channel state information report set selection information, the channel state information sub-report set selection information, and the channel state request information is carried in downlink control information;

[0503] The downlink control information is either user equipment-specific information or user equipment-common information.

[0504] In some embodiments, the channel state request information is associated with an aperiodic channel state information report trigger state or a semi-persistent channel state information report trigger state.

[0505] In some embodiments, the semi-persistent channel state information reporting trigger state in the semi-persistent trigger state set information is activated or deactivated by code points; a control element signaling of the medium access control activates or deactivates at least one code point.

[0506] In some embodiments, the semi-persistent channel state information report trigger state in the semi-persistent trigger state set information is determined based on the channel state information request field in the downlink control information.

[0507] In some embodiments, the aperiodic channel state information report trigger state in the aperiodic trigger state set information is determined based on the channel state information request field in the downlink control information.

[0508] The information transmission device proposed in this embodiment belongs to the same inventive concept as the information transmission method proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as performing the information transmission method.

[0509] This application also provides a communication node. Figure 5 is a schematic diagram of the structure of a communication node provided in an embodiment. As shown in Figure 5, the communication node provided in this application includes a processor 510, a memory 520, and a computer program stored in the memory and executable on the processor. When the processor 510 executes the program, it implements the above-mentioned information transmission method.

[0510] The communication node may also include a memory 520; the processor 510 in the communication node may be one or more, with one processor 510 as an example in Figure 5; the memory 520 is used to store one or more programs; the one or more programs are executed by the one or more processors 510, so that the one or more processors 510 implement the information transmission method as described in the embodiments of this application.

[0511] The communication node also includes: a communication device 530, an input device 540, and an output device 550.

[0512] The processor 510, memory 520, communication device 530, input device 540 and output device 550 in the communication node can be connected by a bus or other means. Figure 5 shows an example of connection by bus.

[0513] Input device 540 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the communication node. Output device 550 may include display devices such as a display screen.

[0514] The communication device 530 may include a receiver and a transmitter. The communication device 530 is configured to perform information transmission and reception communication under the control of the processor 510.

[0515] The memory 520, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the information transmission method described in the embodiments of this application (e.g., the instruction information receiving module 310 and the measurement report sending module 320 in the information transmission device, or the instruction information sending module 410 and the measurement report receiving module 420 in the information transmission device). The memory 520 may include a program storage area and a data storage area, wherein the program storage area may store the operating system and at least one application program required for a function; the data storage area may store data created based on the use of the communication node, etc. Furthermore, the memory 520 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 520 may further include memory remotely located relative to the processor 510, and these remote memories can be connected to the communication node via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0516] This application also provides a storage medium storing a computer program, which, when executed by a processor, implements any of the information transmission methods described in this application.

[0517] Optionally, the information transmission method is applied to a first communication node and includes: receiving first indication information and second indication information, wherein the first indication information includes at least channel state information sub-report identifier information, and the channel state information sub-report identifier information corresponds to transmit / receive point switch information; measuring channel state information according to the first indication information and the second indication information, and sending a channel state information measurement report.

[0518] Optionally, this information transmission method is applied to a second communication node and includes: sending first indication information and second indication information, wherein the first indication information includes at least channel state information sub-report identifier information, and the channel state information sub-report identifier information corresponds to sender-receiver point switch information; receiving a measurement report of channel state information, wherein the measurement report is a report generated by measuring channel state information based on the first indication information and the second indication information.

[0519] The computer storage medium in this application embodiment can be any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. For example, a computer-readable storage medium can be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination thereof. The computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0520] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit programs for use by or in connection with an instruction execution system, apparatus, or device.

[0521] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, radio frequency (RF), etc., or any suitable combination thereof.

[0522] This application provides a computer program product, which includes a computer program that, when executed by a processor, implements the information transmission method described in any one of the embodiments of this application.

[0523] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0524] The above description is merely an exemplary embodiment of this application and is not intended to limit the scope of protection of this application.

[0525] Those skilled in the art will understand that the term user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.

[0526] Generally, the various embodiments of this application can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although this application is not limited thereto.

[0527] Embodiments of this application can be implemented by executing computer program instructions through the data processor of a mobile device, for example, in a processor entity, or through hardware, or through a combination of software and hardware. The computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages.

[0528] Any block diagram of logical flow in the accompanying drawings of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on memory. Memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical storage devices and systems (Digital Video Disc (DVD) or Compact Disk (CD), etc.). Computer-readable media may include non-transitory storage media. Data processors may be of any type suitable to the local technical environment, such as, but not limited to, general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and processors based on multi-core processor architectures.

[0529] A detailed description of exemplary embodiments of this application has been provided above through exemplary and non-limiting examples. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, without departing from the scope of this application. Therefore, the proper scope of this application will be determined by the claims.

Claims

1. An information transmission method, characterized in that, Applied to a first communication node, the method includes: receiving first indication information and second indication information, wherein the first indication information includes at least channel state information sub-report identifier information, and the channel state information sub-report identifier information corresponds to transmit / receive point switch information; measuring channel state information according to the first indication information and the second indication information, and sending a channel state information measurement report.

2. The information transmission method according to claim 1, characterized in that, The first indication information further includes at least one of the following: channel state information, reference signal resource set information; transmit / receive point switch information; operating mode information; power set information.

3. The information transmission method according to claim 2, characterized in that, The channel state information reference signal resource set information includes N1 channel state information reference signal resource identifiers associated with the transmitting and receiving points used for coherent transmission.

4. The information transmission method according to claim 2, characterized in that, The transmit / receive point switch information is used to display or implicitly indicate the switch status of the channel state information reference signal resource associated with at least one transmit / receive point of coherent transmission, the switch status including at least one of on or off.

5. The information transmission method according to claim 2, characterized in that, The transmit / receive point switch information includes at least one of the following: bitmap; case index.

6. The information transmission method according to claim 5, characterized in that, The transmit / receive point switch information is a bitmap with a bit width of N1. Each bit of the bitmap corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information. Each bit in the bitmap indicates the switch state of the associated channel state information reference signal resource.

7. The information transmission method according to claim 6, characterized in that, All bits in the bitmap can have at least two values.

8. The information transmission method according to claim 5, characterized in that, The transmit / receive point switch information is a case index, the case index is N2, where N2 is a non-negative integer, and the case index implicitly indicates the switch status of the channel state information reference signal resource in the channel state information reference signal resource set information.

9. The information transmission method according to claim 2, characterized in that, The operating mode information includes at least one of the following operating modes: non-energy-saving mode; energy-saving mode; single transmit / receive point mode; multi-transmit / receive point mode with Q1 transmit / receive points disabled, where Q1 is a positive integer greater than or equal to 1; Q2 transmit / receive points disabled, where Q2 is a positive integer greater than or equal to 1; and adaptive mode.

10. The information transmission method according to claim 9, characterized in that, The number of elements in the channel state information reference signal resource set information is N1, where N1 is a positive integer; the operating mode is a single transmit / receive point mode, where N1 is greater than or equal to 2; the operating mode is a multi-transmit / receive point mode with Q1 transmit / receive points disabled, where the difference between N1 and Q1 is greater than or equal to 2; the operating mode is a Q2-transmit / receive point mode with Q2 transmit / receive points disabled, where the difference between N1 and Q2 is greater than or equal to 1.

11. The information transmission method according to claim 9, characterized in that, The transmit / receive point switch information is configured when the operating mode includes at least one of the following: energy-saving mode; single transmit / receive point mode; multiple transmit / receive point mode with Q1 transmit / receive points turned off; Q2 transmit / receive points turned off; adaptive mode.

12. The information transmission method according to claim 2, characterized in that, The power set information is used to adjust the transmission power of some or all of the channel state information reference signal resources in the channel state information reference signal resource set information associated with at least two transmit-receive points for coherent transmission; the power set information includes K1 elements, and each element represents the power deviation between a physical downlink shared channel resource element and a corresponding channel state information reference signal resource element; K1 = N1, and each element in the power set information corresponds to each channel state information reference signal resource in the channel state information reference signal resource set information one by one; K1 < N1, and each element in the power set information corresponds to each channel state information reference signal resource that is turned on after the transmit-receive point switch control in the channel state information reference signal resource set information, where N1 is the number of elements in the channel state information reference signal resource set information.

13. The information transmission method according to any one of claims 1-12, characterized in that, The first indication information is included in a channel state information sub-report configuration; one or more of the channel state information sub-report configurations are included in a channel state information report configuration, and the channel state information report configuration is carried on the radio resource control.

14. The information transmission method according to claim 1, characterized in that, The second indication information includes at least one of the following: aperiodic trigger state set information; semi-persistent trigger state set information; channel state information sub-report set information; channel state information report set information; channel state information report identification information; channel state information sub-report identification information; channel state information report set selection information; channel state information sub-report set selection information; channel state information request information.

15. The information transmission method according to claim 14, characterized in that, The aperiodic trigger state set information includes M1 aperiodic channel state information report trigger states, and one aperiodic channel state information report trigger state is associated with a channel state information sub-report information set or a channel state information report set information; the semi-persistent trigger state set information includes M2 semi-persistent channel state information report trigger states, and one semi-persistent channel state information report trigger state is associated with a channel state information report identification information or a channel state information sub-report identification information; the channel state information sub-report set information includes L1 channel state information sub-report identifications; the channel state information report set information includes L2 channel state information report identifications; the channel state information report identification information includes a channel state information report identification; the channel state information sub-report identification information includes a channel state information sub-report identification; where M1, M2, L1, and L2 are all positive integers.

16. The information transmission method according to claim 14, characterized in that, The channel state information report set selection information is used to select one or more channel state information reports from the configured channel state information report set information; the channel state information sub-report set selection information is used to select one or more channel state information sub-reports from the configured channel state information sub-report set information.

17. The information transmission method according to claim 16, characterized in that, The channel state information report set selection information selects channel state information reports using a bitmap, the length of which is the same as the number of channel state information report identifiers included in the channel state information report set information; the channel state information sub-report set selection information selects channel state information sub-reports using a bitmap, the length of which is the same as the number of channel state information sub-report identifiers included in the channel state information sub-report set information.

18. The information transmission method according to claim 14, characterized in that, At least one of the following information is carried in the radio control resources: the aperiodic trigger state set information, the semi-persistent trigger state set information, the channel state information sub-report set information, and the channel state information report set information.

19. The information transmission method according to claim 14, characterized in that, At least one of the channel state information report set selection information, the channel state information sub-report set selection information, and the channel state request information is carried in the downlink control information; the downlink control information is user equipment-specific information or user equipment-common information.

20. The information transmission method according to claim 14, characterized in that, The channel state request information is associated with either the non-periodic channel state information report trigger state or the semi-persistent channel state information report trigger state.

21. The information transmission method according to claim 14, characterized in that, The semi-persistent trigger state set information in the semi-persistent channel state information report trigger state is activated or deactivated by code points; a media access control control element signaling activates or deactivates at least one code point.

22. The information transmission method according to claim 14, characterized in that, The semi-persistent trigger state in the semi-persistent trigger state set information is determined based on the channel state information request field in the downlink control information.

23. The information transmission method according to claim 14, characterized in that, The aperiodic channel state information report trigger state in the aperiodic trigger state set information is determined based on the channel state information request field in the downlink control information.

24. An information transmission method, characterized in that, Applied to a second communication node, the method includes: sending first indication information and second indication information, wherein the first indication information includes at least channel state information sub-report identifier information, and the channel state information sub-report identifier information corresponds to the sender-receiver switch information; and receiving a measurement report of channel state information, wherein the measurement report is a report generated by measuring channel state information based on the first indication information and the second indication information.

25. A communication node, characterized in that, include: The program includes a memory, a processor, a program stored in the memory and executable on the processor, and a data bus for establishing communication between the processor and the memory, wherein the program, when executed by the processor, implements the steps of the information transmission method as described in any one of claims 1-24.

26. A storage medium for computer-readable storage, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the steps of the information transmission method according to any one of claims 1-24.

27. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the information transmission method according to any one of claims 1-24.

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