Report sub-configuration selection method and device, network equipment, terminal and medium

Abstract

The invention provides a reporting sub-configuration selection method and device, network equipment, a terminal and a medium, and relates to the technical field of wireless communication. The channel state information reference signal measurement reporting sub-configuration selection method comprises: a base station sends a selection list of a plurality of channel state information (CSI) reporting sub-configurations to a terminal, the selection list being used for selecting at least one of the plurality of CSI reporting sub-configurations, and the terminal carries out CSI measurement and reporting based on the selected CSI reporting sub-configuration. Through the technical scheme of the invention, indication and selection of CSI-RS sub-configuration can be realized, selection of the antenna port and the transmitting power can be flexibly carried out, the complexity and the network overhead of a user side measurement reference signal can be reduced, and the flexibility and the reliability of CSI-RS measurement resource configuration can be improved.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present disclosure is a divisional application of an application with an application date of 2023-08-11, an application number of 2023110138892, and an invention name of “Selection method, device, network device, terminal and medium for reporting sub-configuration”. The entire contents of the parent application are incorporated into this article by reference. Background Art

[0004] Since the total energy consumption of 5G (5th Generation Mobile Communication Technology) networks is nearly four times that of LTE (Long Term Evolution), it is urgent to reduce the overall energy consumption of 5G networks. Reducing antenna power is an important direction to reduce the overall energy consumption of the network.

[0005] By flexibly shutting down the antenna port and adjusting the antenna transmit power, the antenna power can be reduced to reduce the network energy consumption of the base station sending signals. To achieve such flexible adjustment, the CSI (channel state information) feedback mechanism needs to be enhanced accordingly, and multiple CSI-RS (Channel State Information-Reference Signal) resource configurations are implemented in one CSI configuration for UE (User Equipment) to measure and report. However, the reporting of all multiple CSI measurement results will affect the complexity and energy consumption of the UE.

[0006] 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 the prior art known to ordinary technicians in the field. Summary of the invention

[0007] The purpose of the present disclosure is to provide a method, device, network equipment 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 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 the 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 reporting subconfiguration is provided, which is applied to a base station, including: sending a selection list of multiple channel state information CSI reporting subconfigurations to a terminal, wherein 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.

[0010] In one embodiment, the plurality of CSI reporting sub-configurations are configured based on a CSI reporting sub-configuration mechanism, and each configured CSI reporting sub-configuration corresponds to a plurality of channel state information reference signal CSI-RS resources having 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 an 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 the CSI reporting configuration in the 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 sequence number, and the first selection identifier includes the second sorting sequence 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 the 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, wherein 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 a 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 reporting subconfiguration is provided, which is applied to a terminal, and includes: 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 performing CSI measurement and reporting based on the selected CSI reporting subconfiguration.

[0025] In one embodiment, the multiple CSI reporting sub-configurations are configured based on the CSI reporting sub-configuration mechanism, each configured CSI reporting sub-configuration corresponds to multiple CSI-RS resources with 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 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.

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

[0027] In an 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; determining the selected CSI reporting sub-configuration based on the sub-identifier selected from the selection list to measure the CSI-RS resources 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 multiple transmit power offset values ​​corresponding to multiple CSI reporting sub-configurations.

[0031] In one embodiment, the CSI measurement and reporting based on the selected CSI reporting sub-configuration 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 sub-configuration.

[0032] In one embodiment, the 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 carrying the multiple CSI reporting sub-configurations and the selection list.

[0033] In one embodiment, after receiving the RRC signaling sent by the base station, it also 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, wherein the CSI trigger signaling includes a 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 the 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, there is provided a device for selecting a channel state information reference signal measurement and reporting sub-configuration, which is applied to a base station and includes: a sending module, which is used to send a selection list of multiple channel state information CSI reporting sub-configurations to a terminal, and 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, there is provided a device for selecting a channel state information reference signal measurement and reporting sub-configuration, which is applied to a terminal and includes: a receiving module, used 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; and a measurement and reporting module, used to perform 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 method for selecting a channel state information reference signal measurement reporting sub-configuration 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, and 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 selection scheme for the channel state information reference signal measurement and reporting sub-configuration provided in 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 the sub-configuration composed of multiple CSI-RS resource configurations, which is beneficial to reducing the complexity of user-side measurement of reference signals and network overhead, and improving 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 present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings herein are incorporated into the specification 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 accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0043] Figure 1 A flow chart of a method for selecting a channel state information reference signal measurement reporting sub-configuration in an embodiment of the present disclosure is shown;

[0044] Figure 2 A flow chart showing another method for selecting a channel state information reference signal measurement and reporting sub-configuration in an embodiment of the present disclosure is shown;

[0045] Figure 3 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 is shown;

[0046] Figure 4 A flow chart showing a method for selecting a channel state information reference signal measurement reporting sub-configuration in another embodiment of the present disclosure is shown;

[0047] Figure 5 A flow chart showing a method for selecting a channel state information reference signal measurement reporting sub-configuration in another embodiment of the present disclosure is shown;

[0048] Figure 6 A schematic diagram showing a device for selecting a channel state information reference signal measurement and reporting sub-configuration in an embodiment of the present disclosure;

[0049] Figure 7 A schematic diagram showing another device for selecting a channel state information reference signal measurement and reporting sub-configuration in an embodiment of the present disclosure;

[0050] Figure 8 A structural block diagram of a computer device in an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0051] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to 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 only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0053] 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 indication (CQI: Channel Quality Indicator), rank indication (RI: Rank Indicator) and precoding indication (PMI: Precoder Matrix Indicator) are collectively called channel state information CSI.

[0054] Since the energy consumption of 5G networks is higher than that of 4G networks, the operating costs of 5G networks are affected. Therefore, it is necessary to reduce the energy consumption of 5G networks. By configuring multiple CSI resources at the same time and performing measurements and reporting, and flexibly adjusting antenna shutdown and transmission power, the energy consumption of base station antennas can be effectively reduced. However, if the terminal measures and reports multiple CSIs at the same time, it will increase the complexity of the terminal on the one hand, and on the other hand, it will cause a sharp increase in the overhead of reporting CSI. To prevent such negative effects, it is necessary to select the CSI resources for measurement and reporting.

[0055] In the following, each step of the method for selecting a channel state information reference signal measurement reporting sub-configuration in this example implementation will be described in more detail with reference to the accompanying drawings and embodiments.

[0056] Figure 1 A flow chart of a method for selecting a channel state information reference signal measurement reporting sub-configuration in an embodiment of the present disclosure is shown.

[0057] like Figure 1 As shown, according to a method for selecting a channel state information reference signal measurement reporting sub-configuration according to an embodiment of the present disclosure, a method for selecting a channel state information reference signal measurement reporting sub-configuration is applied to a base station, including:

[0058] Step S102: sending 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.

[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 may be the same number of antenna ports or a 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 at most N indication 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. The indication and selection of the CSI-RS sub-configuration can be realized, and the antenna port and transmit power can be flexibly selected, which is beneficial to reducing the complexity of user-side measurement of reference signals and network overhead, 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 having 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 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 report 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] Wherein, a sub-identifier sub-ID is added for each reporting sub-configuration sub-configuration in the RRC resource configuration. At this time, the sub-ID can be directly used as a selection identifier.

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

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

[0071] In this embodiment, in order to reduce the number of bits occupied by directly using the sub-identifier sub-ID, the sub-identifier sub-ID is arranged and numbered in a certain manner, such as in ascending or descending order of the sub-identifier sub-ID, and a first sorting number is obtained as a selection identifier. The corresponding sub-configuration can be known through 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 implementation method of generating the first selection identifier based on the selection of the number of antenna ports includes: sorting multiple numbers of antenna ports 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 the 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, so the number of antenna ports associated with the sub-configuration can be used as its unique mark, and the specific number of ports can be filled in the list to indicate different sub-configurations.

[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 values ​​for the number of ports, 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 there are multiple port numbers and transmit power offset values ​​in a CSI-RS resource at the same time, the CSI reporting sub-configuration can be distinguished only by the number of ports, but the transmit power offset can still be selected at this time to help indicate the CSI-RS to be finally measured and reported. In this case, the power offset of the CSI-RS to be selected can be directly selected.

[0081] Among them, the transmit power offset list can reuse the sub-configuration selection list field based on transmit power.

[0082] In one embodiment, multiple transmit power offset values ​​corresponding to 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.

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

[0084] like Figure 2 As shown, 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] Among them, NR supports three types of reporting, namely periodic CSI, Semi-Persistent CSI (SP-CSI) and Aperiodic CSI (A-CSI), which are P-CSI, SP-CSI and A-CSI respectively. Among them, P-CSI is configured by RRC signaling and does not need to be triggered. After the RRC signaling is configured, periodic measurement and reporting begin. The difference between SP-CSI and P-CSI is that they need to be triggered. After the RRC signaling configures the basic information, it is necessary to wait for the gNB to send the trigger information before periodic measurement and transmission. There is no need to report before receiving the trigger signaling. A-CSI is triggered once and reported once.

[0089] like Figure 3 As shown, 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, wherein 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 CSI (A-CSI) and semi-persistent NZP-CSI (SP-CSI). The selection field may be located in the DCI or MAC CE that activates the CSI reporting, and its selectable specific value is automatically obtained according to the CSI-RS resource configuration already configured in the RRC.

[0093] If the 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 sub-configurations with more dimensions are introduced, the present disclosure 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 indications for the CSI-RS therein.

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

[0096] like Figure 4 As shown, according to another embodiment of the present disclosure, a method for selecting a channel state information reference signal measurement reporting sub-configuration sub-configuration is applied to a terminal, including:

[0097] Step S402: receiving 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. The indication and selection of the CSI-RS sub-configuration can be achieved, and the antenna port and transmit power can be flexibly selected, 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 an embodiment, the selection identifier includes a first sorting number for sorting sub-identifiers of the CSI reporting sub-configuration.

[0103] In one embodiment, receiving RRC signaling sent by a base station also includes: extracting a corresponding sub-identifier and sub-configuration sub-configuration in the CSI report configuration in the RRC signaling; determining the selected sub-configuration sub-configuration based on the sub-identifier selected from the selection list to measure the CSI-RS resources corresponding to the sub-configuration 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] Exemplarily, assuming that there are 3 CSI reporting sub-configurations, the selection identifiers are: #0, #1, #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 of 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 that meet both the first selection list and the second selection list are satisfied.

[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] like Figure 5 As shown, according to another method for selecting a channel state information reference signal measurement reporting sub-configuration of the present disclosure, the method includes:

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

[0113] Step S504: configure multiple CSI reporting sub-configurations and corresponding sub-identifiers for the terminal, 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 the DCI or MAC CE signaling triggers activation.

[0115] According to a method for selecting a channel state information reference signal measurement reporting sub-configuration according to yet another embodiment of the present disclosure, antenna ports are dynamically adjusted based on CSI feedback.

[0116] In order 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 two CSI-RS resources in CSI-RS Resource Set. 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, namely:

[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 reporting sub-configuration according to yet another embodiment of the present disclosure, the antenna port and transmit power are jointly and dynamically adjusted based on CSI feedback.

[0122] In order to achieve energy saving by dynamically adjusting the network antenna and power, an enhanced CSI feedback mechanism is introduced. In the RRC configuration of CSIResource configuration, in CSI-RSResourceSet, two CSI-RS are configured in one CSI-RS resource, corresponding to 32-port and 16-port CSI-RS respectively, and the adopted transmit power offset is {1dB(#1), 3dB(#2)}; another CSI-RS resource in the same set is also configured with a CSI-RS resource, corresponding to 16 ports, and the transmit power offset is 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}, then sub#1 is measured and reported, and only the CSI-RS resources in which the transmit power offset is equal to 3dB are measured, that is, only the case in which the transmit power offset in CSI-RS#1 is 3dB is measured and reported.

[0125] It should be noted that the above figures are only schematic illustrations of the processes included in the method according to an exemplary embodiment of the present invention, and are not intended to be limiting. It is easy to understand that the processes shown in the above figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0126] Refer to the following Figure 6 hereinafter, a device 600 for selecting a channel state information reference signal measurement reporting sub-configuration according to an embodiment of the present invention is described. Figure 6 The shown channel state information reference signal measurement reporting sub-configuration selection device 600 is only an example and should not bring any limitation to the function and scope of use of the embodiment of the present invention.

[0127] The selection device 600 of the channel state information reference signal measurement reporting sub-configuration is expressed in the form of a hardware module. The components of the selection device 600 of the channel state information reference signal measurement reporting sub-configuration may include but are not limited to: a sending module 602, which is used to send a selection list of multiple channel state information CSI reporting sub-configurations to the terminal, and 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.

[0128] Refer to the following Figure 7 The following describes a device 700 for selecting a channel state information reference signal measurement reporting sub-configuration according to an embodiment of the present invention. Figure 7 The shown channel state information reference signal measurement reporting sub-configuration selection device 700 is only an example and should not bring any limitation to the function and scope of use of the embodiments of the present invention.

[0129] The selection device 700 of the channel state information reference signal measurement and reporting sub-configuration is expressed in the form of a hardware module. The components of the selection device 700 of the channel state information reference signal measurement and reporting sub-configuration may include but are not limited to: a receiving module 702, which is used to receive a selection list of multiple channel state information CSI reporting sub-configurations sent by a base station, and the selection list is used to select at least one of the multiple CSI reporting sub-configurations; a measurement and reporting module 704, which is used to perform CSI measurement and reporting based on the selected CSI reporting sub-configuration.

[0130] It will be appreciated by those skilled in the art that various aspects of the present invention may be implemented as a system, method or program product. Therefore, various aspects of the present invention may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to herein as a "circuit", "module" or "system".

[0131] Refer to the following Figure 8 The electronic device 800 according to this embodiment of the present invention is described below. It can be a network device or a terminal. Figure 8 The electronic device 800 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0132] like Figure 8 As shown, the electronic device 800 is in the form of a general computing device. The components of the electronic device 800 may include but are not limited to: at least one processing unit 810, at least one storage unit 820, and a bus 830 connecting different system components (including the storage unit 820 and the processing unit 810).

[0133] The storage unit stores program codes, which can be executed by the processing unit 810, so that the processing unit 810 performs the steps according to various exemplary embodiments of the present invention described in the above “Exemplary Method” section of this specification. For example, the processing unit 810 can perform the following steps: Figure 1 The scheme described in step S102 shown in FIG.

[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 unit bus or memory unit 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 may also communicate with one or more external devices 870 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 800, and / or communicate with any device that enables the electronic device 800 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 850. Furthermore, the electronic device 800 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, 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 may 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, etc.

[0138] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation 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, including 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 implementation of the present disclosure.

[0139] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the above method of the present 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 a program code, and when the program product is run on an electronic device, the program code is used to enable the electronic device to perform the steps according to various exemplary implementations of the present invention described in the above "Exemplary Method" section of the present specification.

[0140] The program product for implementing the above method according to an embodiment of the present invention may adopt a portable compact disk read-only memory (CD-ROM) and include program code, and may be run on an electronic device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0141] The program product may use 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 device, or any combination of the above. More specific examples (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 of the above.

[0142] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit 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, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0144] 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++, etc., and 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 separate 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 through 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., through 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 above detailed description, 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. On the contrary, 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 steps of the method in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0147] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation 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, including 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 implementation of the present disclosure.

[0148] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A method for selecting a channel state information reference signal measurement reporting sub-configuration, characterized in that: Applied to base stations, including: A selection list of multiple channel state information CSI reporting subconfigurations is sent to the terminal, wherein 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, and each configured CSI reporting subconfiguration corresponds to multiple channel state information reference signal CSI-RS resources having the same characteristics.

2. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 1, characterized in that: 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.

3. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 2, characterized in that: The selection identifier includes a sub-identifier configured for the CSI reporting sub-configuration.

4. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 2, characterized in that: The selection identifier includes a first sorting number for sorting the sub-identifiers of the CSI reporting sub-configuration.

5. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 3, characterized in that: 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.

6. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 2, characterized in that: 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.

7. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 6, characterized in that: 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.

8. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 6, characterized in that: 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.

9. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 6, characterized in that: 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.

10. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 9, characterized in that: 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.

11. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 9, characterized in that: 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.

12. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 1 to 11, characterized in that: 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.

13. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 12, characterized in that: 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.

14. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 1 to 11, characterized in that: 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.

15. A method for selecting a channel state information reference signal measurement reporting sub-configuration, characterized in that: Applied to terminals, including: 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, where each configured CSI reporting subconfiguration corresponds to multiple channel state information reference signal CSI-RS resources having the same characteristics; CSI measurement and reporting are performed based on the selected CSI reporting subconfiguration.

16. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 15, characterized in that: The receiving base station sends a selection list of multiple channel state information CSI reporting sub-configurations, further comprising: 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.

17. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 16, characterized in that: The selection identifier includes a sub-identifier configured for the CSI reporting sub-configuration.

18. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 16, characterized in that: The selection identifier includes a first sorting number for sorting the sub-identifiers of the CSI reporting sub-configuration.

19. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 17, characterized in that: 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.

20. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 16, characterized in that: 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.

21. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 20, characterized in that: 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.

22. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 21, characterized in that: 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.

23. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 15 to 22, characterized in that: The receiving base station sends a selection list of multiple channel state information CSI reporting sub-configurations, including: An RRC signaling sent by the base station is received, where the RRC signaling carries the multiple CSI reporting sub-configurations and the selection list.

24. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to claim 23, characterized in that: 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.

25. The method for selecting a channel state information reference signal measurement reporting sub-configuration according to any one of claims 15 to 22, characterized in that: The receiving base station sends a selection list of multiple channel state information CSI reporting sub-configurations, including: 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.

26. A device for selecting a channel state information reference signal measurement reporting sub-configuration, characterized in that: Applied to base stations, including: A sending module, used to send a selection list of multiple channel state information CSI reporting sub-configurations to the terminal, 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, and each configured CSI reporting sub-configuration corresponds to multiple channel state information reference signal CSI-RS resources with the same characteristics.

27. A device for selecting a channel state information reference signal measurement reporting sub-configuration, characterized in that: Applied to terminals, including: 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, and each configured CSI reporting sub-configuration corresponds to multiple channel state information reference signal CSI-RS resources having the same characteristics; A measurement and reporting module is used to perform CSI measurement and reporting based on the selected CSI reporting sub-configuration.

28. A network device, characterized in that: include: 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 according to any one of claims 1 to 14 by executing the executable instructions.

29. A terminal, characterized in that: include: 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 15 to 25 by executing the executable instructions.

30. A computer-readable storage medium having a computer program stored thereon, characterized in that: 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 25 is implemented.

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