Reporting sub-configuration selection method and apparatus, network device, terminal, and medium

Abstract

A reporting sub-configuration selection method and apparatus, a network device, a terminal, and a medium, relating to the technical field of wireless communication. A channel state information reference signal measurement reporting sub-configuration selection method comprises: a base station sending a selection list of multiple channel state information (CSI) reporting sub-configurations to the terminal, the selection list being used to select at least one of the multiple CSI reporting sub-configurations, so that the terminal can perform CSI measurement and reporting on the basis of the selected CSI reporting sub-configuration. By means of a technical solution of the present disclosure, indication and selection of a CSI-RS sub-configuration can be implemented, and selection of an antenna port and transmitting power can be flexibly performed, which is beneficial for reducing the complexity and network overhead of measuring a reference signal by a user side, and improving the flexibility and reliability of CSI-RS measurement resource configuration.

Description

Method, device, network equipment, terminal and medium for selecting reporting sub-configuration

[0001] This disclosure claims priority to Chinese patent application number 202311013889.2, filed on August 11, 2023, entitled “Method, apparatus, network device, terminal and medium for selecting reporting sub-configuration”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of wireless communication technologies, and in particular to a method for selecting a channel state information reference signal measurement and reporting subconfiguration, an apparatus for selecting a channel state information reference signal measurement and reporting subconfiguration, a network device, and a computer-readable storage medium. Background Art

[0003] Since the total energy consumption of 5G (5th Generation Mobile Communication Technology) networks is nearly four times that of LTE (Long Term Evolution), there is an urgent need to reduce the overall energy consumption of 5G networks. Reducing antenna power is an important direction for reducing the overall energy consumption of the network.

[0004] By flexibly shutting down antenna ports and adjusting antenna transmit power, antenna power can be reduced, thereby lowering network energy consumption for base station signal transmission. To achieve such flexible adjustments, the CSI (channel state information) feedback mechanism needs to be enhanced accordingly. Multiple CSI-RS (Channel State Information-Reference Signal) resources should be configured in a single CSI configuration for measurement and reporting by the UE (User Equipment). However, reporting all multiple CSI measurement results will affect the complexity and energy consumption of the UE.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field.

[0006] Summary of the Invention

[0007] The purpose of the present disclosure is to provide a method, apparatus, network device and storage medium for selecting a channel state information reference signal measurement reporting sub-configuration, which at least to a certain extent overcomes the problem of increased complexity and energy consumption of the UE caused by reporting all multiple CSI measurement results in the related art.

[0008] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by practice of the present disclosure.

[0009] According to one aspect of the present disclosure, a method for selecting a channel state information reference signal measurement and reporting sub-configuration is provided, which is applied to a base station, including: sending a selection list of multiple channel state information CSI reporting sub-configurations to a terminal, wherein the selection list is used to select at least one of the multiple CSI reporting sub-configurations, so that the terminal performs CSI measurement and reporting based on the selected CSI reporting sub-configuration.

[0010] In one embodiment, the multiple CSI reporting sub-configurations are configured based on a CSI reporting sub-configuration mechanism, and each configured CSI reporting sub-configuration corresponds to multiple channel state information reference signal CSI-RS resources with the same characteristics.

[0011] In one embodiment, the selection list includes at least one selection identifier, or the selection list records a value range of the selection identifier, and the selection identifier is used to indicate the selected CSI reporting sub-configuration.

[0012] In one embodiment, the selection identifier includes a sub-identifier configured for the CSI reporting sub-configuration.

[0013] In one embodiment, the selection identifier includes a first sorting number for sorting the sub-identifiers of the CSI reporting sub-configuration.

[0014] In one embodiment, the sub-identifier and the CSI reporting sub-configuration having a corresponding relationship are configured in a CSI reporting configuration in a radio resource control RRC signaling.

[0015] In one embodiment, the same feature is that the multiple CSI-RS resources have the same number of antenna ports, and the selection list includes a first selection list; the first selection list includes at least one first selection identifier, and the first selection identifier is generated based on the selection of the number of antenna ports.

[0016] In one embodiment, the first selection identifier is generated based on the selection of the number of antenna ports, including: sorting the multiple numbers of antenna ports corresponding to the multiple CSI reporting sub-configurations to obtain a second sorting number, and the first selection identifier includes the second sorting number.

[0017] In one embodiment, the first selection identifier is generated based on the selection of the number of antenna ports, including: the first selection identifier includes the number of antenna ports.

[0018] In one embodiment, the same feature is that multiple CSI-RS resources have the same transmit power offset value, and the selection list includes a second selection list; the second selection list includes at least one second selection identifier, and the second selection identifier is generated based on the selection of the transmit power offset value.

[0019] In one embodiment, the second selection identifier is generated based on the selection of the transmit power offset value, including: sorting the multiple transmit power offset values ​​corresponding to the multiple CSI reporting sub-configurations to obtain a third sorting number, and the second selection identifier includes the third sorting number.

[0020] In one embodiment, the second selection identifier is generated based on selection of the transmit power offset value, including: the second selection identifier includes the transmit power offset value.

[0021] In one embodiment, sending a selection list of multiple channel state information CSI reporting sub-configurations to the terminal includes: sending RRC signaling to the terminal, where the RRC signaling carries the multiple CSI reporting sub-configurations and the selection list.

[0022] In one embodiment, after sending RRC signaling to the terminal, it also includes: sending CSI trigger signaling to the terminal so that the terminal performs CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, wherein the CSI trigger signaling includes media access control MAC control element CE and / or downlink control information DCI.

[0023] In one embodiment, the sending of a selection list of multiple channel state information CSI reporting sub-configurations to the terminal includes: sending RRC signaling to the terminal, the RRC signaling carrying the multiple CSI reporting sub-configurations; sending CSI trigger signaling to the terminal, so that the terminal performs CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, the CSI trigger signaling carrying the selection list, wherein the CSI trigger signaling includes a media access control MAC control element CE and / or downlink control information DCI.

[0024] According to another aspect of the present disclosure, a method for selecting a channel state information reference signal measurement and reporting sub-configuration is provided, which is applied to a terminal, including: receiving a selection list of multiple channel state information CSI reporting sub-configurations sent by a base station, the selection list being used to select at least one of the multiple CSI reporting sub-configurations; and performing CSI measurement and reporting based on the selected CSI reporting sub-configuration.

[0025] In one embodiment, the multiple CSI reporting sub-configurations are configured based on the CSI reporting sub-configuration mechanism, and each configured CSI reporting sub-configuration corresponds to multiple CSI-RS resources with the same characteristics. The selection list of multiple channel state information CSI reporting sub-configurations sent by the receiving base station also includes: extracting the selection identifier in the selection list, or the value range of the selection identifier; and selecting at least one of the multiple CSI reporting sub-configurations based on the selection identifier or the value range.

[0026] In one embodiment, the selection identifier includes a sub-identifier configured for the CSI reporting sub-configuration.

[0027] In one embodiment, the selection identifier includes a first sorting number for sorting the sub-identifiers of the CSI reporting sub-configuration.

[0028] In one embodiment, the receiving base station sends the RRC signaling, further comprising: extracting the corresponding sub-identifier and the CSI reporting sub-configuration from the CSI reporting configuration in the RRC signaling; and determining the selected CSI reporting sub-configuration based on the sub-identifier selected from the selection list to measure the CSI-RS resource corresponding to the CSI reporting sub-configuration.

[0029] In one embodiment, the same feature is that multiple CSI-RS resources have the same number of antenna ports, and the selection list includes a first selection list; at least one first selection identifier is extracted from the first selection list, and the first selection identifier is the number of antenna ports, or the first selection identifier is a second sorting number, and the second sorting number is generated based on sorting the multiple numbers of antenna ports corresponding to the multiple CSI reporting sub-configurations.

[0030] In one embodiment, the same feature is that multiple CSI-RS resources have the same transmit power offset value, and the selection list includes a second selection list; the second selection list includes at least one second selection identifier, the second selection identifier is the transmit power offset value, or the second selection identifier is a third sorting number, and the third sorting number is generated based on sorting the multiple transmit power offset values ​​corresponding to the multiple CSI reporting sub-configurations.

[0031] In one embodiment, the performing CSI measurement and reporting based on the selected CSI reporting subconfiguration includes: using the CSI-RS resources that satisfy both the first selection list and the second selection list as the CSI-RS resources corresponding to the selected CSI reporting subconfiguration.

[0032] In one embodiment, the receiving a selection list of multiple channel state information CSI reporting subconfigurations sent by a base station includes: receiving RRC signaling sent by the base station, the RRC signaling carrying the multiple CSI reporting subconfigurations and the selection list.

[0033] In one embodiment, after receiving the RRC signaling sent by the base station, it also includes: receiving the CSI trigger signaling sent by the base station; performing CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, wherein the CSI trigger signaling includes the media access control MAC control element CE and / or downlink control information DCI.

[0034] In one embodiment, the receiving base station sends a selection list of multiple channel state information CSI reporting sub-configurations, including: receiving RRC signaling sent by the base station, the RRC signaling carrying multiple CSI reporting sub-configurations; receiving CSI trigger signaling sent by the base station to perform CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, the CSI trigger signaling carrying the selection list, wherein the CSI trigger signaling includes a media access control MAC control element CE and / or downlink control information DCI.

[0035] According to another aspect of the present disclosure, a device for selecting a channel state information reference signal measurement and reporting sub-configuration is provided, which is applied to a base station and includes: a sending module, used to send a selection list of multiple channel state information CSI reporting sub-configurations to a terminal, wherein the selection list is used to select at least one of the multiple CSI reporting sub-configurations, so that the terminal performs CSI measurement and reporting based on the selected CSI reporting sub-configuration.

[0036] According to another aspect of the present disclosure, a device for selecting a channel state information reference signal measurement and reporting sub-configuration is provided, which is applied to a terminal and includes: a receiving module for receiving a selection list of multiple channel state information CSI reporting sub-configurations sent by a base station, the selection list being used to select at least one of the multiple CSI reporting sub-configurations; and a measurement and reporting module for performing CSI measurement and reporting based on the selected CSI reporting sub-configuration.

[0037] According to another aspect of the present disclosure, a network device is provided, comprising: a processor; and a memory for storing executable instructions of the processor; the processor is configured to execute the channel state information reference signal measurement reporting sub-configuration selection method of the above-mentioned first aspect by executing the executable instructions.

[0038] According to another aspect of the present disclosure, a terminal is provided, comprising: a processor; and a memory for storing executable instructions of the processor; the processor is configured to execute the method for selecting a channel state information reference signal measurement reporting sub-configuration of the above-mentioned second aspect by executing the executable instructions.

[0039] According to another aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method for selecting a channel state information reference signal measurement reporting sub-configuration is implemented.

[0040] The channel state information reference signal measurement and reporting sub-configuration selection scheme provided by the embodiments of the present disclosure configures the selected reporting sub-configuration in the selection list based on the configuration method by setting a selection list, determines the configured CSI-RS resource based on the selected reporting sub-configuration, and performs CSI measurement and reporting on the CSI-RS configuration in the CSI reporting sub-configuration or a sub-configuration consisting of multiple CSI-RS resource configurations. This helps reduce the complexity and network overhead of user-side reference signal measurement and improves the flexibility and reliability of CSI-RS measurement resource configuration.

[0041] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0043] FIG1 shows a flow chart of a method for selecting a channel state information reference signal measurement and reporting sub-configuration according to an embodiment of the present disclosure;

[0044] FIG2 shows a flow chart of another method for selecting a channel state information reference signal measurement and reporting sub-configuration according to an embodiment of the present disclosure;

[0045] FIG3 shows a flow chart of a method for selecting a channel state information reference signal measurement and reporting sub-configuration according to another embodiment of the present disclosure;

[0046] FIG4 shows a flow chart of a method for selecting a channel state information reference signal measurement and reporting sub-configuration according to another embodiment of the present disclosure;

[0047] FIG5 shows a flow chart of a method for selecting a channel state information reference signal measurement reporting sub-configuration according to another embodiment of the present disclosure;

[0048] FIG6 shows a schematic diagram of a device for selecting a channel state information reference signal measurement and reporting sub-configuration according to an embodiment of the present disclosure;

[0049] FIG7 shows a schematic diagram of another apparatus for selecting a channel state information reference signal measurement and reporting sub-configuration according to an embodiment of the present disclosure;

[0050] FIG8 shows a structural block diagram of a computer device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0051] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0052] In addition, the accompanying drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Identical reference numerals in the figures denote identical or similar parts, and thus repetitive descriptions thereof will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0053] The solution provided by the present invention, when it is necessary to perform data analysis on the target case report table, determines that the channel state information reference signal CSI-RS (Channel State Information-Reference Signal) is a very important reference signal in the 5G NR (New Radio, new wireless / new air interface, i.e., 5G wireless network) system. The wireless channel conditions may change continuously. The terminal needs to feed back the downlink channel conditions it sees to the base station through CSI (Channel State Information) so that the base station can take the channel quality into consideration during downlink scheduling, flexibly shut down the antenna port and adjust the antenna transmit power. Among them, the channel quality indicator (CQI: Channel Quality Indicator), the rank indicator (RI: Rank Indicator) and the precoding indicator (PMI: Precoder Matrix Indicator) are collectively referred to as the channel state information CSI.

[0054] Since 5G networks consume more energy than 4G networks, their operating costs are affected. Therefore, it is necessary to reduce 5G network energy consumption. By simultaneously configuring multiple CSI resources and performing measurements and reporting, and flexibly adjusting antenna shutdown and transmit power, base station antenna energy consumption can be effectively reduced. However, the simultaneous measurement and reporting of multiple CSIs by the terminal increases terminal complexity and dramatically increases the overhead of reporting CSI. To prevent such negative impacts, it is necessary to carefully select the CSI resources for measurement and reporting.

[0055] The following describes in more detail the steps of the method for selecting a channel state information reference signal measurement reporting sub-configuration in this exemplary implementation with reference to the accompanying drawings and embodiments.

[0056] FIG1 shows a flow chart of a method for selecting a channel state information reference signal measurement reporting sub-configuration according to an embodiment of the present disclosure.

[0057] As shown in FIG1 , a method for selecting a channel state information reference signal measurement and reporting sub-configuration according to an embodiment of the present disclosure is applied to a base station and includes:

[0058] Step S102: Send a selection list of multiple channel state information (CSI) reporting subconfigurations to the terminal, where the selection list is used to select at least one of the multiple CSI reporting subconfigurations, so that the terminal performs CSI measurement and reporting based on the selected CSI reporting subconfiguration.

[0059] The CSI reporting sub-configuration is used to configure the reporting of at least one CSI-RS resource. The CSI sub-configuration refers to a set of CSI-RS resources with the same characteristics. These characteristics can be the same number of antenna ports or transmit power offset.

[0060] The selection method indicated in the selection list can be to directly indicate one or more CSI reporting sub-configurations, or to indicate by limiting the sub-configuration range. Assuming that there are N CSI reporting sub-configurations, the selection list can contain a maximum of N indicator identifiers, or a set of {n|X<=n<=Y}, indicating that the sub-configuration is enabled and the corresponding configuration of the CSI-RS resources associated with it needs to be measured and reported by the terminal UE.

[0061] In this embodiment, by setting a selection list, the selected reporting sub-configuration is configured in the selection list based on the configuration method, and the configured CSI-RS resources are determined based on the selected reporting sub-configuration. CSI measurement and reporting are performed on the CSI-RS configuration in the CSI reporting sub-configuration or the sub-configuration composed of multiple CSI-RS resource configurations. This can achieve indication and selection of the CSI-RS sub-configuration, and can flexibly select the antenna port and transmit power, which is beneficial to reducing the complexity and network overhead of user-side reference signal measurement, and improving the flexibility and reliability of CSI-RS measurement resource configuration.

[0062] In one embodiment, multiple CSI reporting sub-configurations are configured based on a CSI reporting sub-configuration mechanism, and each configured CSI reporting sub-configuration corresponds to multiple channel state information reference signal CSI-RS resources with the same characteristics.

[0063] One reporting sub-configuration includes multiple CSI-RS resources. In addition, the configuration of each CSI-RS resource only exists in one CSI reporting sub-configuration.

[0064] In one embodiment, the selection list includes at least one selection identifier, or the selection list records a value range of the selection identifier, and the selection identifier is used to indicate the selected CSI reporting sub-configuration.

[0065] In this embodiment, a selection identifier is configured in the selection list, and the selection identifier is used to indicate the selected CSI reporting sub-configuration, so as to further determine the configured CSI-RS resources based on the CSI reporting sub-configuration, so that the terminal does not need to measure all configured CSI-RS resources, thereby reducing network power consumption.

[0066] In one embodiment, a sub-identifier and a reporting sub-configuration having a corresponding relationship are configured in a CSI reporting configuration in a radio resource control (RRC) signaling.

[0067] In one embodiment, the selection identifier includes a sub-identifier of a CSI reporting sub-configuration.

[0068] In the RRC resource configuration, a sub-identifier sub-ID is added for each reporting sub-configuration sub-configuration. In this case, the sub-ID can be directly used as a selection identifier.

[0069] In this embodiment, when a sub-ID is in the list, it indicates that the corresponding reporting sub-configuration is enabled, and the corresponding configuration of the CSI-RS resource associated therewith needs to be measured and reported by the UE, thereby ensuring the flexibility and reliability of the selection.

[0070] In one embodiment, the selection identifier includes a first sorting number for sorting sub-identifiers of the CSI reporting sub-configuration.

[0071] In this embodiment, to reduce the number of bits occupied by directly using the sub-ID, the sub-IDs are numbered in a certain manner, such as in ascending or descending order, to obtain a first sorting number, which serves as a selection identifier. The corresponding sub-configuration can be determined by the first sorting number.

[0072] In one embodiment, the same feature is that multiple CSI-RS resources have the same number of antenna ports, and the selection list includes a first selection list; the first selection list includes at least one first selection identifier, and the first selection identifier is generated based on the selection of the number of antenna ports.

[0073] Exemplarily, in one embodiment, the first selection identifier is generated based on the implementation method of selecting the number of antenna ports, including: sorting multiple antenna port numbers corresponding to multiple CSI reporting sub-configurations to obtain a second sorting number, and the first selection identifier includes the second sorting number.

[0074] In this embodiment, the sub-ID corresponding to the CSI reporting sub-configuration may not be configured. In this case, the number of antenna ports may be directly arranged in ascending / descending order to obtain a second sorting number, and the second sorting number may be directly used as the first selection identifier to select the corresponding sub-configuration.

[0075] Exemplarily, in another embodiment, the implementation manner of generating the first selection identifier based on the selection of the number of antenna ports includes: the first selection identifier includes the number of antenna ports.

[0076] Among them, the number of antenna ports of CSI-RS resource can be a single antenna port or multiple antenna ports, up to 32 antenna ports. CDM (Code Division Multiplexing) will be used when mapping multiple antenna ports, that is, multiple CSI-RS resources can be distinguished and mapped on the same time-frequency resources through CDM.

[0077] In this embodiment, for multiple CSI-RS resources configured to support different antenna ports, the CSI-RS resources corresponding to the same sub-configuration have the same number of ports. Therefore, the number of antenna ports associated with the sub-configuration can be used as its unique identifier. By filling in the specific number of ports in the list, different sub-configurations can be indicated.

[0078] In addition, those skilled in the art will appreciate that, in addition to adding a specific number of antenna ports to the list, the list content may also be modified to a range of port numbers, and all sub-configurations with antenna port numbers within this range may be indicated.

[0079] In one embodiment, the same feature is that multiple CSI-RS resources have the same transmit power offset value, and the selection list includes a second selection list; the second selection list includes at least one second selection identifier, and the second selection identifier is generated based on the selection of the transmit power offset value.

[0080] In this embodiment, when a CSI-RS resource contains multiple port numbers and transmit power offset values, the CSI reporting sub-configuration can be distinguished only by the port number, but the transmit power offset can still be selected at this time to help indicate the CSI-RS to be measured and reported in the end. In this case, the power offset of the CSI-RS to be selected can be directly selected.

[0081] The transmit power offset list may reuse the transmit power-based sub-configuration selection list field.

[0082] In one embodiment, multiple transmit power offset values ​​corresponding to multiple CSI reporting sub-configurations are sorted to obtain a third sorting number, and the second selection identifier includes the third sorting number.

[0083] In one embodiment, the second selection indicator includes a transmit power offset value.

[0084] As shown in FIG2 , in one embodiment, a selection list of multiple channel state information (CSI) reporting sub-configurations is sent to the terminal, including:

[0085] Step S202: Send RRC signaling to the terminal, where the RRC signaling carries multiple CSI reporting sub-configurations and a selection list.

[0086] In one embodiment, after sending the RRC signaling to the terminal, the method further includes:

[0087] Step S204: Send CSI trigger signaling to the terminal, so that the terminal performs CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, wherein the CSI trigger signaling includes a media access control MAC control element CE and / or downlink control information DCI.

[0088] NR supports three reporting types: periodic CSI, semi-persistent CSI (SP-CSI), and aperiodic CSI (A-CSI), which are P-CSI, SP-CSI, and A-CSI, respectively. P-CSI is configured via RRC signaling and does not require triggering. Once configured, periodic measurement and reporting begins. The difference between SP-CSI and P-CSI is that they require triggering. After basic information is configured via RRC signaling, periodic measurement and transmission will only begin after the gNB sends trigger information. Reporting is not required before receiving the trigger signaling. A-CSI is reported once triggered.

[0089] As shown in FIG3 , in one embodiment, a selection list of multiple channel state information (CSI) reporting sub-configurations is sent to the terminal, including:

[0090] Step S302: Send RRC signaling to the terminal, where the RRC signaling carries multiple CSI reporting sub-configurations.

[0091] Step S304: Send CSI trigger signaling to the terminal, so that the terminal performs CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling. The CSI trigger signaling carries a selection list, wherein the CSI trigger signaling includes MAC CE and / or DCI.

[0092] In this embodiment, it is applicable to aperiodic NZP-CSI (A-CSI) and semi-persistent NZP-CSI (SP-CSI). The selection field can be located in the DCI or MAC CE that activates CSI reporting, and its selectable specific value is automatically obtained according to the CSI-RS resource configuration already configured in the RRC.

[0093] If a sub-configuration ID is introduced, it should be configured together with the sub-configuration in the RRC configuration of the CSI report configuration.

[0094] When more dimensions of sub-configuration are introduced, this patent is still applicable, but the sub-configuration based on the number of ports is still used as the selection basis, and other indication fields only provide further indication of the CSI-RS.

[0095] Even if there is no sub-configuration mechanism, the method in this patent can still be used to directly make a selection based on the configuration.

[0096] As shown in FIG4 , a method for selecting a channel state information reference signal measurement reporting sub-configuration according to another embodiment of the present disclosure, as applied to a terminal, includes:

[0097] Step S402: Receive a selection list of multiple channel state information (CSI) reporting sub-configurations sent by a base station, where the selection list is used to select at least one of the multiple CSI reporting sub-configurations.

[0098] Step S404: perform CSI measurement and reporting based on the selected CSI reporting sub-configuration.

[0099] In this embodiment, by receiving a selection list configured on the base station side, a selected reporting sub-configuration is configured in the selection list based on the configuration method, and the configured CSI-RS resources are determined based on the selected reporting sub-configuration. CSI measurement and reporting are performed on the CSI-RS configuration in the CSI reporting sub-configuration or the sub-configuration composed of multiple CSI-RS resource configurations. This can achieve indication and selection of the CSI-RS sub-configuration, and can flexibly select the antenna port and transmit power, which is beneficial to reducing the complexity of terminal measurement of reference signals and network overhead.

[0100] In one embodiment, multiple CSI reporting sub-configurations are configured based on a CSI reporting sub-configuration mechanism, each configured CSI reporting sub-configuration corresponds to multiple CSI-RS resources with the same characteristics, and a selection list of multiple channel state information CSI reporting sub-configurations sent by a base station is received, further comprising: extracting a selection identifier in the selection list, or a value range of the selection identifier; and selecting at least one of the multiple CSI reporting sub-configurations based on the selection identifier or the value range.

[0101] In one embodiment, the selection identifier includes a sub-identifier of a CSI reporting sub-configuration.

[0102] In one embodiment, the selection identifier includes a first sorting number for sorting sub-identifiers of the CSI reporting sub-configuration.

[0103] In one embodiment, receiving the RRC signaling sent by the base station also includes: extracting the corresponding sub-identifier and sub-configuration from the CSI report configuration in the RRC signaling; determining the selected sub-configuration based on the sub-identifier selected from the selection list to measure the CSI-RS resources corresponding to the sub-configuration.

[0104] In one embodiment, the same feature is that multiple CSI-RS resources have the same number of antenna ports, and the selection list includes a first selection list; at least one first selection identifier is extracted from the first selection list, the first selection identifier is the number of antenna ports, or the first selection identifier is a second sorting number, and the second sorting number is generated based on sorting multiple numbers of antenna ports corresponding to multiple CSI reporting sub-configurations.

[0105] In one embodiment, the same feature is that multiple CSI-RS resources have the same transmit power offset value, and the selection list includes a second selection list; the second selection list includes at least one second selection identifier, the second selection identifier is a transmit power offset value, or the second selection identifier is a third sorting number, and the third sorting number is generated based on sorting multiple transmit power offset values ​​corresponding to multiple CSI reporting sub-configurations.

[0106] In one embodiment, performing CSI measurement and reporting based on the selected CSI reporting subconfiguration includes: using CSI-RS resources that satisfy both the first selection list and the second selection list as CSI-RS resources corresponding to the selected CSI reporting subconfiguration.

[0107] For example, assuming that there are three CSI reporting sub-configurations, the selection identifiers are: #0, #1, and #2, corresponding to 16, 8, and 24 antenna ports, respectively. At this time, the configuration information in the selection list is {#0, #1} or {16, 8}, and the power offset list is configured as {#0, #2} or {-3, 3}, which means that the sub-configuration with port number 16 / 8 is selected, but only the CSI-RS in which the transmit power offset value can be set to 3 / -3 needs to be measured and reported, that is, the CSI-RS resources in the first selection list and the second selection list are satisfied at the same time.

[0108] In one embodiment, receiving a selection list of multiple channel state information (CSI) reporting sub-configurations sent by a base station includes: receiving RRC signaling sent by the base station, the RRC signaling multiple CSI reporting sub-configurations, and the selection list.

[0109] In one embodiment, after receiving the RRC signaling sent by the base station, it also includes: receiving the CSI trigger signaling sent by the base station; performing CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, wherein the CSI trigger signaling includes the media access control MAC control element CE and / or downlink control information DCI.

[0110] In one embodiment, a selection list of multiple channel state information (CSI) reporting sub-configurations sent by a base station is received, including: receiving RRC signaling sent by the base station, the RRC signaling carrying multiple CSI reporting sub-configurations; receiving CSI trigger signaling sent by the base station, so as to perform CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, the CSI trigger signaling carrying the selection list, wherein the CSI trigger signaling includes a media access control (MAC) control element (CE) and / or downlink control information (DCI).

[0111] As shown in FIG5 , another method for selecting a channel state information reference signal measurement reporting sub-configuration according to the present disclosure includes:

[0112] Step S502: Configure CSI-RS resources for the terminal through CSI resource configuration signaling CSI-ResourceConfig.

[0113] Step S504: multiple CSI reporting sub-configurations and corresponding sub-identifiers are configured for the terminal, where each CSI reporting sub-configuration corresponds to multiple CSI-RS resources with the same characteristics.

[0114] Step S506: Determine the selected sub-identifier based on the selection list sent to the terminal, so that based on the selected sub-identifier, the terminal performs corresponding CSI measurement and reporting when activation is triggered by DCI or MAC CE signaling.

[0115] According to yet another embodiment of the present disclosure, a method for selecting a channel state information reference signal measurement and reporting sub-configuration is provided, which is based on dynamic adjustment of antenna ports according to CSI feedback.

[0116] To achieve dynamic adjustment of network antennas for energy saving, an enhanced CSI feedback mechanism is introduced. In the RRC configuration of CSI Resource configuration, two port numbers are configured for each of the two CSI-RS resources within the CSI-RSResourceSet. For CSI-RS#1, the port numbers are {4, 8}; for CSI-RS#2, the ports are {8, 12}, forming a total of three sub-configurations:

[0117] sub#1(#port=4):{CSI-RS#1};

[0118] sub#2(#port=8):{CSI-RS#1, CSI-RS#2};

[0119] sub#3(#port=12): {CSI-RS#2}.

[0120] If triggered by MAC CE, the content in the list is {#2}, and only the CSI-RS configuration in sub#2 is required to be measured and reported.

[0121] According to a method for selecting a channel state information reference signal measurement and reporting sub-configuration in yet another embodiment of the present disclosure, the antenna port and transmit power are jointly and dynamically adjusted based on CSI feedback.

[0122] To achieve energy conservation through dynamic adjustment of network antennas and power, an enhanced CSI feedback mechanism is introduced. In the RRC configuration of the CSI Resource configuration, within a CSI-RSResourceSet, two CSI-RSs are configured within a single CSI-RS resource, corresponding to 32-port and 16-port CSI-RS, respectively, with transmit power offsets of {1dB (#1), 3dB (#2)}. Another CSI-RS resource within the same set also has a CSI-RS resource configured, corresponding to 16-port, with a transmit power offset of 1dB (#1).

[0123] At this time, there are still only two sub-configurations: sub#1 (#port=16): {CSI-RS#1, CSI-RS#2}; sub#2 (#port=32): {CSI-RS#1}.

[0124] If triggered by MAC CE, the list indicating the number of ports is {#1}, and the list indicating the transmit power offset is {3}. In this case, sub#1 is measured and reported, and only the CSI-RS resources with a transmit power offset of 3 dB are measured. That is, only the case where the transmit power offset in CSI-RS#1 is 3 dB is measured and reported.

[0125] It should be noted that the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention and are not intended to be limiting. It is readily understood that the processes illustrated in the above figures do not indicate or limit the temporal order of these processes. Furthermore, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0126] The following describes a device 600 for selecting a CSI / RS measurement reporting sub-configuration according to an embodiment of the present invention with reference to FIG6 . The device 600 for selecting a CSI / RS measurement reporting sub-configuration shown in FIG6 is merely an example and should not limit the functionality or scope of use of the embodiments of the present invention.

[0127] The device 600 for selecting a channel state information (CSI) measurement and reporting subconfiguration is implemented as a hardware module. Components of the device 600 for selecting a channel state information (CSI) measurement and reporting subconfiguration may include, but are not limited to, a sending module 602 for sending a selection list of multiple channel state information (CSI) reporting subconfigurations to a terminal. The selection list is used to select at least one of the multiple CSI reporting subconfigurations, so that the terminal performs CSI measurement and reporting based on the selected CSI reporting subconfiguration.

[0128] The following describes a device 700 for selecting a CSI / RS measurement reporting sub-configuration according to an embodiment of the present invention with reference to FIG7 . The device 700 for selecting a CSI / RS measurement reporting sub-configuration shown in FIG7 is merely an example and should not limit the functionality or scope of use of the embodiments of the present invention.

[0129] The device 700 for selecting a channel state information (CSI) measurement and reporting subconfiguration is implemented as a hardware module. The components of the device 700 may include, but are not limited to: a receiving module 702 for receiving a selection list of multiple channel state information (CSI) reporting subconfigurations sent by a base station, the selection list being used to select at least one of the multiple CSI reporting subconfigurations; and a measurement and reporting module 704 for performing CSI measurement and reporting based on the selected CSI reporting subconfiguration.

[0130] Those skilled in the art will appreciate that various aspects of the present invention may be implemented as systems, methods, or program products. Therefore, various aspects of the present invention may be implemented in the following forms: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software implementations, which may be collectively referred to herein as "circuits," "modules," or "systems."

[0131] The electronic device 800 according to this embodiment of the present invention is described below with reference to FIG8 . It may be a network device or a terminal. The electronic device 800 shown in FIG8 is merely an example and should not limit the functions and scope of use of the embodiments of the present invention.

[0132] As shown in Figure 8, electronic device 800 is implemented as a general-purpose computing device. Components of electronic device 800 may include, but are not limited to, the aforementioned at least one processing unit 810, the aforementioned at least one storage unit 820, and a bus 830 connecting various system components (including storage unit 820 and processing unit 810).

[0133] The storage unit stores program code that can be executed by the processing unit 810, causing the processing unit 810 to perform the steps according to various exemplary embodiments of the present invention described in the "Exemplary Methods" section above. For example, the processing unit 810 may perform the solution described in step S102 of FIG. 1 .

[0134] The storage unit 820 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 8201 and / or a cache memory unit 8202 , and may further include a read-only memory unit (ROM) 8203 .

[0135] The storage unit 820 may also include a program / utility 8204 having a set (at least one) of program modules 8205, such program modules 8205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0136] Bus 830 may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0137] The electronic device 800 can also communicate with one or more external devices 870 (e.g., a keyboard, a pointing device, a Bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 800, and / or any device that enables the electronic device 800 to communicate with one or more other computing devices (e.g., a router, a modem, etc.). Such communication can occur via an input / output (I / O) interface 850. Furthermore, the electronic device 800 can communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network such as the Internet) via a network adapter 860. As shown, the network adapter 860 communicates with other modules of the electronic device 800 via a bus 830. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the electronic device 800, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0138] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

[0139] In exemplary embodiments of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the above-described methods of this specification is stored. In some possible implementations, various aspects of the present invention may also be implemented in the form of a program product, which includes program code. When the program product is executed on an electronic device, the program code is used to cause the electronic device to perform the steps according to various exemplary embodiments of the present invention described in the "Exemplary Methods" section of this specification.

[0140] According to an embodiment of the present invention, a program product for implementing the above-mentioned method can be a portable compact disc read-only memory (CD-ROM) and include program code, and can be run on an electronic device, such as a personal computer. However, the program product of the present invention is not limited thereto. In this document, a 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.

[0141] The program product may be implemented in any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or component, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0142] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transfer a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0143] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0144] The program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, and the like, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a stand-alone software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device may be connected to the user computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0145] It should be noted that although several modules or units of the device for action execution are mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0146] In addition, although the various steps of the method in the present disclosure are described in a specific order in the accompanying drawings, this does not require or imply that these steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired result. Additionally or alternatively, certain steps can be omitted, multiple steps can be combined into one step for execution, and / or one step can be decomposed into multiple steps for execution, etc. Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described here can be implemented by software, or by combining software with necessary hardware. Therefore, the technical solution according to the embodiment of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiment of the present disclosure.

[0147] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A method for selecting a channel state information reference signal measurement reporting sub-configuration, applied to a base station, comprising: A selection list of multiple channel state information CSI reporting subconfigurations is sent to a terminal, where the selection list is used to select at least one of the multiple CSI reporting subconfigurations, so that the terminal performs CSI measurement and reporting based on the selected CSI reporting subconfiguration.

2. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 1, wherein: The multiple CSI reporting sub-configurations are configured based on a CSI reporting sub-configuration mechanism, and each configured CSI reporting sub-configuration corresponds to multiple channel state information reference signal CSI-RS resources having the same characteristics.

3. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 2, wherein: The selection list includes at least one selection identifier, or the selection list records a value range of the selection identifier, and the selection identifier is used to indicate the selected CSI reporting sub-configuration.

4. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 3, wherein: The selection identifier includes a sub-identifier configured for the CSI reporting sub-configuration.

5. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 3, wherein: The selection identifier includes a first sorting number for sorting the sub-identifiers of the CSI reporting sub-configuration.

6. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 4, wherein: The sub-identifier and the CSI reporting sub-configuration having a corresponding relationship are configured in the CSI reporting configuration in the radio resource control RRC signaling.

7. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 3, wherein: The same feature is that the multiple CSI-RS resources have the same number of antenna ports, The selection list includes a first selection list; The first selection list includes at least one first selection identifier, and the first selection identifier is generated based on the selection of the number of antenna ports.

8. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 7, wherein: The first selection identifier is generated based on the selection of the number of antenna ports, including: The plurality of antenna port numbers corresponding to the plurality of CSI reporting sub-configurations are sorted to obtain a second sorting sequence number, and the first selection identifier includes the second sorting sequence number.

9. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 7, wherein: The first selection identifier is generated based on the selection of the number of antenna ports, including: The first selection identifier includes the number of antenna ports.

10. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 7, wherein: The same feature is that the multiple CSI-RS resources have the same transmit power offset value, The selection list includes a second selection list; The second selection list includes at least one second selection identifier, and the second selection identifier is generated based on the selection of the transmit power offset value.

11. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 10, wherein: The second selection identifier is generated based on the selection of the transmit power offset value, including: The multiple transmit power offset values ​​corresponding to the multiple CSI reporting sub-configurations are sorted to obtain a third sorting sequence number, and the second selection identifier includes the third sorting sequence number.

12. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 10, wherein: The second selection identifier is generated based on the selection of the transmit power offset value, including: The second selection identifier includes the transmit power offset value.

13. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 1 to 12, wherein: The sending a selection list of multiple channel state information CSI reporting sub-configurations to the terminal includes: Sending RRC signaling to the terminal, where the RRC signaling carries the multiple CSI reporting sub-configurations and the selection list.

14. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 13, wherein: After sending the RRC signaling to the terminal, the method further includes: sending a CSI trigger signaling to the terminal, so that the terminal performs CSI measurement and reporting on the selected CSI reporting subconfiguration based on the CSI trigger signaling, The CSI trigger signaling includes a media access control MAC control element CE and / or downlink control information DCI.

15. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 1 to 12, wherein: The sending a selection list of multiple channel state information CSI reporting sub-configurations to the terminal includes: Sending RRC signaling to the terminal, where the RRC signaling carries the multiple CSI reporting sub-configurations; sending a CSI trigger signaling to the terminal, so that the terminal performs CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, wherein the CSI trigger signaling carries the selection list, The CSI trigger signaling includes a media access control MAC control element CE and / or downlink control information DCI.

16. A method for selecting a channel state information reference signal measurement reporting sub-configuration, applied to a terminal, comprising: receiving a selection list of multiple channel state information CSI reporting subconfigurations sent by a base station, where the selection list is used to select at least one of the multiple CSI reporting subconfigurations; CSI measurement and reporting are performed based on the selected CSI reporting subconfiguration.

17. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 16, wherein: The multiple CSI reporting sub-configurations are configured based on a CSI reporting sub-configuration mechanism, each configured CSI reporting sub-configuration corresponds to multiple CSI-RS resources having the same characteristics, and the selection list of multiple channel state information CSI reporting sub-configurations sent by the receiving base station also includes: Extracting a selection identifier from the selection list, or a value range of the selection identifier; At least one of the multiple CSI reporting sub-configurations is selected based on the selection identifier or the value range.

18. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 17, wherein: The selection identifier includes a sub-identifier configured for the CSI reporting sub-configuration.

19. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 17, wherein: The selection identifier includes a first sorting number for sorting the sub-identifiers of the CSI reporting sub-configuration.

20. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 18, wherein: Also includes: Extracting the corresponding sub-identifier and the CSI reporting sub-configuration from the CSI reporting configuration in the RRC signaling sent by the base station; Based on the sub-identifier selected from the selection list, the selected CSI reporting sub-configuration is determined to measure the CSI-RS resource corresponding to the CSI reporting sub-configuration.

21. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 17, wherein: The same feature is that the multiple CSI-RS resources have the same number of antenna ports, The selection list includes a first selection list; At least one first selection identifier is extracted from the first selection list, where the first selection identifier is the number of antenna ports, or the first selection identifier is a second sorting sequence number, and the second sorting sequence number is generated based on sorting the multiple numbers of antenna ports corresponding to the multiple CSI reporting sub-configurations.

22. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 21, wherein: The same feature is that the multiple CSI-RS resources have the same transmit power offset value, The selection list includes a second selection list; The second selection list includes at least one second selection identifier, the second selection identifier is the transmit power offset value, or the second selection identifier is a third sorting number, and the third sorting number is generated based on sorting multiple transmit power offset values ​​corresponding to multiple CSI reporting sub-configurations.

23. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 22, wherein: The performing CSI measurement and reporting based on the selected CSI reporting subconfiguration includes: The CSI-RS resources that satisfy both the first selection list and the second selection list are used as the CSI-RS resources corresponding to the selected CSI reporting sub-configuration.

24. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 16 to 23, wherein: The selection list of multiple channel state information CSI reporting sub-configurations sent by the receiving base station includes: An RRC signaling is received from the base station, where the RRC signaling carries the multiple CSI reporting sub-configurations and the selection list.

25. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 24, wherein: After receiving the RRC signaling sent by the base station, the method further includes: Receiving CSI trigger signaling sent by the base station; performing CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, The CSI trigger signaling includes a media access control MAC control element CE and / or downlink control information DCI.

26. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 16 to 23, wherein: The selection list of multiple channel state information CSI reporting sub-configurations sent by the receiving base station includes: receiving an RRC signaling sent by the base station, where the RRC signaling carries a plurality of the CSI reporting sub-configurations; receiving a CSI trigger signaling sent by the base station, so as to perform CSI measurement and reporting on the selected CSI reporting sub-configuration based on the CSI trigger signaling, wherein the CSI trigger signaling carries the selection list, The CSI trigger signaling includes a media access control MAC control element CE and / or downlink control information DCI.

27. A device for selecting a channel state information reference signal measurement reporting sub-configuration, applied to a base station, comprising: A sending module is used to send a selection list of multiple channel state information CSI reporting sub-configurations to the terminal, where the selection list is used to select at least one of the multiple CSI reporting sub-configurations so that the terminal performs CSI measurement and reporting based on the selected CSI reporting sub-configuration.

28. A device for selecting a channel state information reference signal measurement reporting sub-configuration, applied to a terminal, comprising: A receiving module, configured to receive a selection list of multiple channel state information CSI reporting sub-configurations sent by a base station, wherein the selection list is used to select at least one of the multiple CSI reporting sub-configurations; A measurement and reporting module is used to perform CSI measurement and reporting based on the selected CSI reporting sub-configuration.

29. A network device comprising: processor; as well as A memory, configured to store executable instructions of the processor; The processor is configured to execute the method for selecting a channel state information reference signal measurement reporting sub-configuration as described in any one of claims 1 to 15 by executing the executable instructions.

30. A terminal, comprising: processor; as well as A memory, configured to store executable instructions of the processor; The processor is configured to execute the method for selecting a channel state information reference signal measurement reporting sub-configuration as described in any one of claims 16 to 26 by executing the executable instructions.

31. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 1 to 26 is implemented.

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