Measurement configuration method and device, measurement reporting method and device, related equipment and readable storage medium

Abstract

The invention provides a measurement configuration method and device, a measurement reporting method and device, related equipment and a readable storage medium, and relates to the technical field of communication. The method comprises: a base station sends a first downlink reference signal configuration to a terminal, the terminal being located within the coverage of an intermediate node, the base station being capable of communicating with the terminal through the intermediate node, the first downlink reference signal configuration being used for indicating a first downlink reference signal group reflected by the intermediate node; sending a second downlink reference signal configuration to the terminal, the second downlink reference signal configuration being used for indicating a second downlink reference signal group sent by the base station; and receiving a measurement report of the terminal for the first downlink reference signal group and the second downlink reference signal group. According to the scheme provided by the invention, the channel measurement problem of the terminal in the incompletely shielded area in the RIS auxiliary communication system is solved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a measurement configuration, a reporting method, an apparatus, related equipment and a readable storage medium. Background Art

[0002] In order to enhance the signal coverage of the network, new network element nodes will be added to the network to enhance and forward the base station signal. For the existing technology, the added intermediate node can be a network-controlled repeater (NCR) with a radio frequency source, which can perform radio frequency amplification and forwarding on the signal of the base station or terminal; the added intermediate node can also be a reconfigurable intelligent surface (RIS) without a radio frequency source, which uses large-scale passive controllable reflection units to reflect and converge the signal of the base station or terminal. The intermediate node can re-beamform the signal from the base station or terminal, and has a certain directionality in the blind area. In the initial access stage, the base station and the above-mentioned intermediate node perform beam scanning of the downlink reference signal, and the terminal measures and selects a stronger beam to report to the base station for subsequent data transmission.

[0003] In the RIS-assisted communication system, for areas that are not completely blocked, in the expansion scenario of two links, one in which the base station directly sends signals to the terminal and the other in which the base station sends signals to the terminal through RIS directional reflection, the terminal within the coverage of the RIS will receive signals from the base station and RIS reflection at the same time. At this time, how the terminal performs measurement and reporting is a problem that needs to be solved. Summary of the invention

[0004] The object of the present invention is to provide a measurement configuration, reporting method, apparatus, related equipment and readable storage medium, which can solve the problem of how a terminal performs channel measurement and reporting in an area that is not completely blocked in a RIS-assisted communication system.

[0005] To achieve the above object, an embodiment of the present invention provides a measurement configuration method, which is applied to a base station, including:

[0006] Sending a first downlink reference signal configuration to a terminal, wherein the terminal is located within a coverage range of an intermediate node, the base station can communicate with the terminal through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0007] Sending a second downlink reference signal configuration to the terminal, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0008] receiving a measurement report of the terminal for the first downlink reference signal group and the second downlink reference signal group.

[0009] To achieve the above object, an embodiment of the present invention provides a measurement reporting method, which is applied to a terminal, including:

[0010] receiving a first downlink reference signal configuration, wherein the terminal is located within the coverage of an intermediate node, the terminal can communicate with a base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0011] receiving a second downlink reference signal configuration, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0012] The first downlink reference signal group and the second downlink reference signal group are measured, and a measurement report is reported.

[0013] To achieve the above object, an embodiment of the present invention provides a measurement reporting method, which is applied to an intermediate node, including:

[0014] receiving a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0015] Forward the first downlink reference signal configuration to the terminal.

[0016] To achieve the above object, an embodiment of the present invention provides a measurement configuration device, which is applied to a base station, including:

[0017] A first sending module, configured to send a first downlink reference signal configuration to a terminal, wherein the terminal is located within a coverage range of an intermediate node, the base station can communicate with the terminal through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0018] A second sending module, configured to send a second downlink reference signal configuration to the terminal, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0019] The first receiving module is configured to receive a measurement report from the terminal regarding the first downlink reference signal group and the second downlink reference signal group.

[0020] To achieve the above object, an embodiment of the present invention provides a measurement reporting device, applied to a terminal, including:

[0021] A first receiving module, configured to receive a first downlink reference signal configuration, wherein the terminal is located within the coverage of an intermediate node, the terminal can communicate with a base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0022] A second receiving module, configured to receive a second downlink reference signal configuration, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0023] The reporting module is used to measure the first downlink reference signal group and the second downlink reference signal group and report a measurement report.

[0024] To achieve the above object, an embodiment of the present invention provides a measurement reporting device, which is applied to an intermediate node, including:

[0025] A first receiving module, configured to receive a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0026] The first forwarding module is configured to forward the first downlink reference signal configuration to a terminal.

[0027] To achieve the above object, an embodiment of the present invention provides a base station, including a processor and a transceiver, wherein the processor is used to control the transceiver:

[0028] Sending a first downlink reference signal configuration to a terminal, wherein the terminal is located within a coverage range of an intermediate node, the base station can communicate with the terminal through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0029] Sending a second downlink reference signal configuration to the terminal, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0030] receiving a measurement report of the terminal for the first downlink reference signal group and the second downlink reference signal group.

[0031] To achieve the above-mentioned purpose, an embodiment of the present invention provides a base station, including a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; when the processor executes the program or instruction, the measurement configuration method as described above is implemented.

[0032] To achieve the above object, an embodiment of the present invention provides a terminal, including a processor and a transceiver, wherein the processor is used to control the transceiver:

[0033] receiving a first downlink reference signal configuration, wherein the terminal is located within the coverage of an intermediate node, the terminal can communicate with a base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0034] receiving a second downlink reference signal configuration, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0035] The first downlink reference signal group and the second downlink reference signal group are measured, and a measurement report is reported.

[0036] To achieve the above objectives, an embodiment of the present invention provides a terminal, including a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; when the processor executes the program or instruction, the measurement reporting method as described above is implemented.

[0037] To achieve the above object, an embodiment of the present invention provides an intermediate node, including a processor and a transceiver, wherein the processor is used to control the transceiver:

[0038] receiving a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0039] Forward the first downlink reference signal configuration to the terminal.

[0040] To achieve the above objectives, an embodiment of the present invention provides an intermediate node, including a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; when the processor executes the program or instruction, the measurement reporting method as described above is implemented.

[0041] To achieve the above object, an embodiment of the present invention provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps in the measurement configuration method or measurement reporting method as described above are implemented.

[0042] The beneficial effects of the above technical solution of the present invention are as follows:

[0043] The base station of the embodiment of the present invention sends a first downlink reference signal configuration and a second downlink reference signal configuration to a terminal, wherein the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by an intermediate node, and the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; and receives a measurement report of the terminal for the first downlink reference signal group and the second downlink reference signal group. In this way, downlink reference signal resources forwarded by an intermediate node and downlink reference signal resources not forwarded by an intermediate node are configured separately, and the terminal can perform channel measurement based on their respective downlink reference signal resources, respectively, solving the channel measurement problem of a terminal that can simultaneously receive signals forwarded by the RIS and base station signals in a RIS-assisted communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of RIS coverage according to an embodiment of the present invention;

[0045] Figure 2 A schematic diagram of a flow chart of a measurement configuration method according to an embodiment of the present invention;

[0046] Figure 3a A schematic diagram of beam directions of a terminal, an intermediate node and a base station according to an embodiment of the present invention;

[0047] Figure 3b Schematic diagram of the mapping relationship between reference signals and beams according to an embodiment of the present invention;

[0048] Figure 4 A schematic diagram of calculating Delta_pq for a terminal according to an embodiment of the present invention;

[0049] Figure 5 A schematic diagram of a flow chart of a method for reporting measurement on a terminal side according to an embodiment of the present invention;

[0050] Figure 6 A schematic diagram of a flow chart of a measurement reporting method on an intermediate node side according to an embodiment of the present invention;

[0051] Figure 7 A schematic diagram of the module structure of a base station according to an embodiment of the present invention;

[0052] Figure 8 A schematic diagram of the module structure of a terminal according to an embodiment of the present invention;

[0053] Fig. 9 A schematic diagram of the structure of an intermediate node according to an embodiment of the present invention;

[0054] Fig.10 is a structural block diagram of a base station according to an embodiment of the present invention;

[0055] Fig.11 is a structural block diagram of a terminal according to an embodiment of the present invention;

[0056] Fig.12 4 is a structural block diagram of an intermediate node according to an embodiment of the present invention. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0058] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0059] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0060] Additionally, the terms "system" and "network" are often used interchangeably herein.

[0061] In the embodiments provided in the present application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0062] In the embodiment of the present invention, according to the existing protocol, the terminal will select the strongest beam for data transmission. In the RIS-assisted communication system, for areas that are not completely blocked, the signal strength of the link where the base station directly sends signals to the terminal without RIS directional reflection and the link where the base station sends signals to the terminal through RIS directional reflection may be similar. This is because the link from the base station to the terminal through RIS directional reflection is the multiplication of the path loss of two sections with a longer distance, and the number of RIS arrays without RF sources does not reach a certain scale, so it is difficult to offset the multiplicative path loss through array gain.

[0063] In the fully blocked scenario, RIS can be used to fill in the blind spots, and RIS and base stations can use the existing protocol for beam management. However, for unblocked scenarios (such as capacity expansion scenarios that require two links, one that passes through RIS reflection and one that does not), especially high-frequency scenarios, the SSB beam of the base station is narrow, resulting in the possibility that the RIS and the terminals within the RIS coverage are located in different SSBs, such as Figure 1For this scenario, there is currently no corresponding channel measurement method, so the embodiment of the present invention provides a corresponding measurement configuration and measurement reporting method to implement channel measurement in this scenario.

[0064] like Figure 2 As shown, a measurement configuration method according to an embodiment of the present invention is applied to a base station and is characterized by comprising:

[0065] Step 21: Send a first downlink reference signal configuration to the terminal.

[0066] The terminal is located within the coverage of an intermediate node, which may include but is not limited to a RIS. Most of the embodiments of the present invention are described using the RIS as an example, and other intermediate nodes with a relay function may also be applicable to the implementation of the present invention.

[0067] RIS is equipped with a controller to receive and execute control instructions from the base station. The controller has the functions of a common terminal and can reuse the existing terminal initial access process:

[0068] The base station periodically sends a synchronization signal block SSB burst set, which includes multiple time-division SSBs. Under certain frequencies and implementation conditions, different SSBs may correspond to different beam directions.

[0069] The controller receives and detects SSBs on the synchronization grid according to a preset period, selects a suitable SSB, and initiates a random access process in its associated RO / preamble.

[0070] After this process, the base station knows the SSB index (denoted as SSB a) where the RIS is located, as well as the corresponding beam direction. Generally, the deployment of RIS is determined according to network optimization, and the location is relatively fixed. In addition, in order to ensure the reliability of the base station's control over the RIS, it is necessary to ensure that the link between the two is a LOS path. Therefore, once the RIS completes the initial access, the channel status between the base station and the RIS is known to the base station.

[0071] For scenarios where the intermediate nodes are not blocked, the base station can communicate with the terminal through the intermediate nodes. For example, the RIS-assisted communication system usually involves two links: the first link from the base station to the terminal through RIS reflection; the second link from the base station directly to the terminal without passing through RIS. The communication goal of this scenario is no longer to use RIS for signal blindness filling (similar to NCR), but it is possible to use RIS to further enhance the communication quality, such as multi-stream or multi-user capacity expansion transmission.

[0072] In the above scenario, the terminal has completed the initial access process through the base station and is in the connected state. In order to eliminate the impact of RIS on the initial access of the terminal, RIS is initially set to the default state, that is, random phase / stray beam. When the base station and the terminal are transmitting services, the base station needs to determine whether the current channel quality is good enough for multi-stream or multi-user expansion transmission based on parameters such as the channel quality reported by the terminal.

[0073] In the embodiment of the present invention, in order to determine whether the terminal is within the coverage of the RIS, the base station needs to perform additional reference signal resource and measurement configuration for the terminal within the coverage of the RIS, and determine whether it is necessary to mobilize the RIS to further improve the channel environment through the terminal measurement report result. Specifically, the first downlink reference signal configuration is used to indicate the first downlink reference signal group reflected by the intermediate node.

[0074] Optionally, the first downlink reference signal group includes N first downlink reference signal resources, and the N first downlink reference signal resources correspond to respective reflection coefficients; before sending the first downlink reference signal configuration to the terminal, it also includes: sending N first downlink reference signal resources to the target terminal respectively according to their respective reflection coefficients through the intermediate node, and the target terminal is all terminals in the area where the synchronization signal block SSB and K adjacent SSBs of the intermediate node are located; receiving measurement results of the N first downlink reference signal resources fed back by the terminal, and the terminal is one of the target terminals; if the measurement result is higher than a preset threshold value, it is determined that the terminal is located in the coverage range of the intermediate node.

[0075] by Figure 1 For example, the base station configures N downlink reference signal resources (i.e., the first downlink reference signal group) for all terminals in SSB a where the RIS is located and its K adjacent SSBs. The related reporting configuration of the N downlink reference signal resources can be configured by the base station or agreed upon by the protocol. Among them, the N downlink reference signal resources correspond to the N beams within the coverage range of the RIS for polling. The base station transmits the above N downlink reference signal resources to the RIS, and the RIS uses the corresponding reflection coefficient on the corresponding downlink reference signal resources to reflect them to the terminal. The terminal receives, measures and selects the strongest downlink reference signal resource for reporting. The base station determines whether the terminal is within the coverage range of the RIS based on whether the reporting result is higher than the preset threshold value. It is worth pointing out that if a terminal within the coverage range of the RIS has been accessed from SSB b, then SSB b is one of the above K SSBs.

[0076] Step 22: Send a second downlink reference signal configuration to the terminal.

[0077] The second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station. The first downlink reference signal configuration and the second downlink reference signal configuration may be configured by the same information or by different information. In addition, the first downlink reference signal configuration and the second downlink reference signal configuration may be indicated to the terminal by at least one of high-layer signaling, MAC CE and DCI. The first downlink reference signal configuration and the second downlink reference signal configuration may be forwarded by an intermediate node or may not be forwarded by an intermediate node.

[0078] Further, the base station configures the first downlink reference signal group and the second downlink reference signal group for the terminal that meets the expansion conditions and is within the coverage range of RIS. The second downlink reference signal group corresponds to the beam direction of the base station direct coverage range, and the beam direction has a QCL-Type D relationship with SSB b.

[0079] Step 23: Receive a measurement report from the terminal for the first downlink reference signal group and the second downlink reference signal group.

[0080] The base station in the embodiment of the present invention sends a first downlink reference signal configuration and a second downlink reference signal configuration to a terminal, wherein the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by an intermediate node, and the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; in this way, downlink reference signal resources forwarded by the intermediate node and downlink reference signal resources not forwarded by the intermediate node are configured separately, and the terminal can perform channel measurement based on the respective downlink reference signal resources respectively, thereby solving the channel measurement problem of the terminal that can simultaneously receive the signal forwarded by the RIS and the base station signal in the RIS-assisted communication system.

[0081] Optionally, before step 23, the method further includes: sending a measurement reporting configuration to the terminal, where the measurement reporting configuration is used to instruct the terminal to report any one of the following:

[0082] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources with a signal strength higher than a first threshold and an absolute value of a difference between the signal strength of the M second downlink reference signal resources and that of the M second downlink reference signal resources is lower than a second threshold;

[0083] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources whose channel estimation results and the correlation value of the channel estimation results of the M second downlink reference signal resources are less than a third threshold.

[0084] Case a: The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources whose signal strength is higher than the first threshold and the absolute value of the signal strength difference between the M second downlink reference signal resources and the M second downlink reference signal resources is lower than the second threshold; that is, diversity transmission, instructing the terminal to report two reference signals with equivalent strength in the two groups.

[0085] Case b: the measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources whose channel estimation result and the correlation value of the channel estimation results of the M second downlink reference signal resources are less than the third threshold; that is, multiplexing transmission: instructing the terminal to report the two reference signals with weaker correlation in the two groups.

[0086] exist Figure 3a In the communication system shown in FIG. 1 , the mapping relationship between the first downlink reference signal group and the beams assigned by the base station to the beams RIS1 and RIS2, and the mapping relationship between the second downlink reference signal group and the beams are as shown in FIG. Figure 3b As shown in the list in , the base station configures the terminal to report M=2 measurement results.

[0087] The terminal receives the first reference signal RS2, RS3, RS9 and the second reference signal RS4, RS5, RS6 which are higher than the first threshold, and measures the received signal strength (dashed box). The terminal calculates the Delta_pq value according to the degree of similarity between the two groups of reference signals, where Delta_pq refers to the difference between RSp and RSq, which is used to indicate the degree of similarity between RSp and RSq. Figure 4 As shown, assuming that the signals with Delta_qp ≤ the second threshold are RS4 and RS3 (such as Figure 4 Delta_34), RS5 and RS2 (such as Figure 4 Delta_25 in) and RS4 and RS9 (such as Figure 4 (Delta_94 in ).

[0088] Case a: The terminal report includes:

[0089] Second reference signal index and corresponding measurement results: index and measurement result of RS4, index and measurement result of RS5.

[0090] First reference signal indices associated with the second reference signal: RS3 (RS4), RS2 (RS5), and RS9 (RS4).

[0091] Case b: The terminal calculates the correlation between the channels estimated by RS4 and RS3, RS5 and RS2, and RS4 and RS9, and reports the reference signal index whose correlation is less than the third threshold, such as RS5 and RS2.

[0092] Optionally, the measurement reporting configuration is used to instruct the terminal to report measurement results of M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group.

[0093] Specifically, the base station sends instructions to the RIS respectively, indicating the phase / precoding / codeword group to be used on the time-frequency resources corresponding to the first downlink reference signal group.

[0094] The RIS is adjusted to a corresponding phase / precoding / codeword group on the time-frequency resources of the first downlink reference signal group.

[0095] The base station sends a first downlink reference signal group and a second downlink reference signal group to the terminal.

[0096] The RIS forwards / reflects the first downlink reference signal group with the phase / precoding / codeword groups configured above respectively.

[0097] The terminal receives all downlink reference signals higher than a first threshold on the configured downlink reference signal resources with different receiving beams, and measures the received signal strength, wherein the first threshold is a minimum received signal strength value of the terminal.

[0098] The terminal selects M second downlink reference signal resources in the second downlink reference signal group according to the base station configuration, where the second downlink reference signal resources are the M downlink reference signal resources with the strongest received signal strength in the second downlink reference signal group.

[0099] Case a: The terminal calculates the absolute value of the difference between the reference signal in the first downlink reference signal group whose received signal strength is higher than the first threshold and the selected M second downlink reference signal strengths according to the base station configuration. The terminal selects the first downlink reference signal whose absolute value of the difference is less than the second threshold, and the second threshold is used to characterize that the received strengths of the two reference signals are equivalent, that is, Delta_pq = |first downlink reference signal received strength_p – second downlink reference signal received strength_q|≤second threshold, p∈{1,2,…,P}, q∈{1,2,…,M}, and P is the number of first downlink reference signals higher than the first threshold.

[0100] The terminal reports the indexes of M second downlink reference signals and the measured received signal strengths, and the index of the first downlink reference signal corresponding to the strength of each second downlink reference signal.

[0101] Case b: The terminal calculates the absolute value of the difference between the reference signal in the first downlink reference signal group whose received signal strength is higher than the first threshold and the strength of the selected M second downlink reference signals according to the configuration of the base station. The terminal selects the first downlink reference signal whose absolute value of the difference is less than the second threshold, performs channel estimation using the selected first downlink reference signal, and estimates the channel using the selected M second downlink reference signals, performs correlation operation on the two groups of channel estimation results, and selects the first downlink reference signal and the second downlink reference signal whose correlation is less than the third threshold, wherein the third threshold is used to characterize that the spatial correlation of the channel is sufficiently small.

[0102] The terminal reports N pairs of second downlink reference signal and first downlink reference signal indexes with smaller spatial correlation, where N is less than or equal to M.

[0103] like Figure 1 As shown, according to the existing protocol, if the link from the base station to the terminal without RIS directional reflection has the same channel quality as the link from the base station to the terminal after RIS directional reflection, users within the coverage of RIS may choose to directly access the base station without RIS. The base station subsequently uses the narrow beam (CSI-RS) associated with the SSB beam facing the terminal for service, and the sidelobe energy leaked to RIS is very low, and it is impossible to add additional RIS auxiliary links to further enhance the terminal capacity. In order to solve this problem, the embodiment of the present invention further includes after step 23: determining the beam direction based on the measurement report.

[0104] Specifically, based on the measurement report, determining the beam direction includes:

[0105] Determining, based on the measurement report corresponding to the first downlink reference signal group, a first beam direction directed toward the intermediate node;

[0106] Based on the measurement report corresponding to the second downlink reference signal group, a second beam direction directed toward the terminal is determined.

[0107] That is to say, the base station simultaneously sends out multiple beams aimed at the RIS (obtained through reporting of the first reference signal) and the terminal (obtained through reporting of the second reference signal) respectively according to the measurement report reported by the terminal.

[0108] Alternatively, based on the measurement report, determining the beam direction includes: weighting the beam direction of the first downlink reference signal group and the beam direction of the second downlink reference signal group based on the measurement report corresponding to the first downlink reference signal group and the measurement report corresponding to the second downlink reference signal group to determine a third beam direction.

[0109] That is to say, the base station performs weighted superposition on the reported beam of the first downlink reference signal resource and the reported beam of the second downlink reference signal resource according to the measurement report reported by the terminal, optimizes the weights for a specific optimization target, and obtains a third beam direction.

[0110] Optionally, after step 23, the measurement configuration method further includes: the base station sends an instruction to the RIS according to the measurement report reported by the terminal, indicating the phase / precoding / codeword group used by the terminal.

[0111] like Figure 5 As shown, an embodiment of the present invention provides a measurement reporting method, which is applied to a terminal, including:

[0112] Step 51: Receive a first downlink reference signal configuration.

[0113] The terminal is located within the coverage of the intermediate node, the terminal can communicate with the base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0114] Step 52: Receive a second downlink reference signal configuration.

[0115] The second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0116] Step 53: Measure the first downlink reference signal group and the second downlink reference signal group, and report a measurement report.

[0117] Optionally, before step 53, the method further includes: receiving a measurement reporting configuration, where the measurement reporting configuration is used to instruct the terminal to report any of the following:

[0118] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources with a signal strength higher than a first threshold and an absolute value of a difference between the signal strength of the M second downlink reference signal resources and that of the M second downlink reference signal resources is lower than a second threshold;

[0119] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement result of the first downlink reference signal resource whose channel estimation result and the correlation value of the channel estimation results of the M second downlink reference signal resources are less than a third threshold.

[0120] Further, step 53 includes: the terminal reports any of the following to the base station:

[0121] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources with a signal strength higher than a first threshold and an absolute value of a difference between the signal strength of the M second downlink reference signal resources and that of the M second downlink reference signal resources is lower than a second threshold;

[0122] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement result of the first downlink reference signal resource whose channel estimation result and the correlation value of the channel estimation results of the M second downlink reference signal resources are less than a third threshold.

[0123] That is, step 53 includes: reporting the measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group.

[0124] Step 53 further includes: reporting a measurement result of a first downlink reference signal resource in the first downlink reference signal group that meets one of the following conditions:

[0125] Case a: the signal strength is higher than the first threshold, and the absolute value of the difference between the signal strength of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group and the signal strength of the M second downlink reference signal resources is lower than the second threshold;

[0126] For example, the terminal calculates the absolute value of the difference between the reference signal in the first downlink reference signal group whose received signal strength is higher than the first threshold and the selected M second downlink reference signal strengths according to the base station configuration. The terminal selects the first downlink reference signal whose absolute value of the difference is less than the second threshold, and the second threshold is used to characterize that the two reference signals have equivalent received strengths, that is, Delta_pq = |first downlink reference signal received strength_p–second downlink reference signal received strength_q|≤second threshold, p∈{1,2,…,P}, q∈{1,2,…,M}, and P is the number of first downlink reference signals higher than the first threshold. The terminal reports the indexes of the M second downlink reference signals and the measured received signal strengths, as well as the index of the first downlink reference signal equivalent to each second downlink reference signal strength.

[0127] Case b: a correlation value between the channel estimation result and the channel estimation results of the M second downlink reference signal resources with the strongest signal strengths in the second downlink reference signal group is less than a third threshold.

[0128] For example, the terminal calculates the absolute value of the difference between the reference signal in the first downlink reference signal group whose received signal strength is higher than the first threshold and the strength of the selected M second downlink reference signals according to the configuration of the base station. The terminal selects the first downlink reference signal whose absolute value of the difference is less than the second threshold, performs channel estimation using the selected first downlink reference signal, and estimates the channel using the selected M second downlink reference signals, performs correlation operation on the two groups of channel estimation results, and the terminal selects the first downlink reference signal and the second downlink reference signal whose correlation is less than the third threshold, and the third threshold is used to characterize that the spatial correlation of the channel is sufficiently small.

[0129] The measurement result includes: a correspondence between the first downlink reference signal resource and the second downlink reference signal resource, a received reference signal strength, and a reference signal index value.

[0130] The terminal of an embodiment of the present invention receives a first downlink reference signal configuration and a second downlink reference signal configuration, and respectively measures the first downlink reference signal group indicated by the first downlink reference signal configuration and the second downlink reference signal group indicated by the second downlink reference signal configuration, obtains corresponding measurement results, and reports based on respective reporting configurations, thereby realizing channel measurement of two downlink reference signal resources.

[0131] like Figure 6 As shown, an embodiment of the present invention provides a measurement reporting method, which is applied to an intermediate node, including:

[0132] Step 61: Receive a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0133] Step 62: Forward the first downlink reference signal configuration to the terminal.

[0134] Optionally, the first downlink reference signal group includes N first downlink reference signal resources, and the N first downlink reference signal resources correspond to respective reflection coefficients;

[0135] Before receiving the first downlink reference signal configuration, the method further includes:

[0136] Receiving N downlink reference signal resources;

[0137] The N first downlink reference signal resources are forwarded respectively according to respective reflection coefficients of the N first downlink reference signal resources.

[0138] The intermediate node of the embodiment of the present invention may be a RIS, which includes a reflection panel and a controller. The intermediate node forwards the received first downlink reference signal configuration to the terminal, so that the terminal can perform measurement based on the first downlink reference signal group indicated by the first downlink reference signal configuration, thereby achieving channel measurement of the RIS coverage area.

[0139] It is worth pointing out that the terminal side and intermediate node embodiments of the embodiments of the present invention are implemented corresponding to the base station side embodiments. The implementation methods of the terminals or intermediate nodes involved in the above base station side embodiments are applicable to the terminal side or intermediate node side embodiments and can achieve the same technical effects, so they will not be repeated here.

[0140] The method embodiments of the present invention are described above from the perspectives of a base station, a terminal, and an intermediate node. The corresponding device embodiments will be further described below in conjunction with the accompanying drawings.

[0141] like Figure 7 As shown, an embodiment of the present invention provides a measurement configuration device, which is applied to a base station, including but not limited to the following functional modules:

[0142] A first sending module 710 is configured to send a first downlink reference signal configuration to a terminal, wherein the terminal is located within a coverage range of an intermediate node, the base station can communicate with the terminal through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0143] A second sending module 720, configured to send a second downlink reference signal configuration to the terminal, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0144] The first receiving module 730 is configured to receive a measurement report from the terminal for the first downlink reference signal group and the second downlink reference signal group.

[0145] Optionally, the measurement configuration device further includes:

[0146] The first determination module is used to determine the beam direction based on the measurement report.

[0147] Optionally, the first determining module includes:

[0148] A first determining unit, configured to determine a first beam direction directed to the intermediate node based on a measurement report corresponding to the first downlink reference signal group;

[0149] A second determining unit is configured to determine a second beam direction directed toward the terminal based on a measurement report corresponding to the second downlink reference signal group.

[0150] Optionally, the first determining module includes:

[0151] The third determination unit is used to weight the beam direction where the first downlink reference signal group is located and the beam direction where the second downlink reference signal group is located based on the measurement report corresponding to the first downlink reference signal group and the measurement report corresponding to the second downlink reference signal group, so as to determine a third beam direction.

[0152] Optionally, the measurement configuration device further includes:

[0153] The third sending module is used to send a measurement reporting configuration to the terminal, where the measurement reporting configuration is used to instruct the terminal to report any of the following:

[0154] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources with a signal strength higher than a first threshold and an absolute value of a difference between the signal strength of the M second downlink reference signal resources and that of the M second downlink reference signal resources is lower than a second threshold;

[0155] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement result of the first downlink reference signal resource whose channel estimation result and the correlation value of the channel estimation results of the M second downlink reference signal resources are less than a third threshold.

[0156] Optionally, the first downlink reference signal group includes N first downlink reference signal resources, and the N first downlink reference signal resources correspond to respective reflection coefficients; and the measurement configuration device further includes:

[0157] A fourth sending module is used to send N first downlink reference signal resources to the target terminal through the intermediate node according to their respective reflection coefficients, and the target terminal is all terminals in the area where the synchronization signal block SSB where the intermediate node is located and K adjacent SSBs are located;

[0158] A second receiving module is configured to receive the measurement results of the N first downlink reference signal resource feedbacks fed back by the terminal, where the terminal is one of the target terminals;

[0159] The second determining module is configured to determine that the terminal is located within the coverage of the intermediate node if the measurement result is higher than a preset threshold.

[0160] like Figure 8 As shown, the embodiment of the present invention further provides a measurement reporting device, which is applied to a terminal, including but not limited to:

[0161] A first receiving module 810 is configured to receive a first downlink reference signal configuration, wherein the terminal is located within the coverage of an intermediate node, the terminal can communicate with a base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0162] A second receiving module 820 is configured to receive a second downlink reference signal configuration, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station;

[0163] The reporting module 830 is configured to measure the first downlink reference signal group and the second downlink reference signal group, and report a measurement report.

[0164] Optionally, the measurement reporting device further includes:

[0165] The third receiving module is used to receive a measurement reporting configuration, where the measurement reporting configuration is used to instruct the terminal to report any of the following:

[0166] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources with a signal strength higher than a first threshold and an absolute value of a difference between the signal strength of the M second downlink reference signal resources and that of the M second downlink reference signal resources is lower than a second threshold;

[0167] The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement result of the first downlink reference signal resource whose channel estimation result and the correlation value of the channel estimation results of the M second downlink reference signal resources are less than a third threshold.

[0168] Optionally, the reporting module includes:

[0169] The first reporting unit is used to report the measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resource whose signal strength is higher than the first threshold and the absolute value of the signal strength difference between the M second downlink reference signal resources and the M second downlink reference signal resources is lower than the second threshold.

[0170] Optionally, the reporting module further includes:

[0171] The second reporting unit is used to report the measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement result of the first downlink reference signal resource whose channel estimation result and the correlation value of the channel estimation result of the M second downlink reference signal resources are less than a third threshold.

[0172] Optionally, the measurement result includes: a correspondence between the first downlink reference signal resource and the second downlink reference signal resource, a received reference signal strength, and a reference signal index value.

[0173] like Fig. 9 As shown, the embodiment of the present invention further provides a measurement reporting device, which is applied to an intermediate node, including but not limited to:

[0174] A first receiving module 910 is configured to receive a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0175] The first forwarding module 920 is configured to forward the first downlink reference signal configuration to a terminal.

[0176] Optionally, the first downlink reference signal group includes N first downlink reference signal resources, and the N first downlink reference signal resources correspond to respective reflection coefficients; and the measurement reporting device further includes:

[0177] A second receiving module, configured to receive N downlink reference signal resources;

[0178] The second forwarding module is configured to respectively forward the N first downlink reference signal resources according to respective reflection coefficients of the N first downlink reference signal resources.

[0179] It is worth noting that the device embodiments of the above-mentioned base station, terminal and intermediate node sides correspond one-to-one to the method embodiments of the above-mentioned base station, terminal and intermediate node sides, and all implementation methods of the above-mentioned method embodiments are applicable to the device embodiments and can achieve the same technical effects.

[0180] like Fig.10 As shown, a base station 1000 according to an embodiment of the present invention includes a processor 1010 and a transceiver 1020, wherein:

[0181] The processor 1010 is used to control the transceiver 1020 to send a first downlink reference signal configuration to the terminal, wherein the terminal is located within the coverage of an intermediate node, the base station can communicate with the terminal through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; send a second downlink reference signal configuration to the terminal, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; and receive a measurement report from the terminal for the first downlink reference signal group and the second downlink reference signal group.

[0182] A base station according to another embodiment of the present invention includes a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; when the processor executes the program or instruction, the measurement configuration method applied to the base station side is implemented.

[0183] The transceiver is used to receive and send data under the control of the processor.

[0184] Among them, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by a processor and various circuits of a memory represented by a memory are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver can be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface can also be an interface that can be connected to external or internal devices, and the connected devices include but are not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0185] The processor is responsible for managing the bus architecture and general processing, and the memory can store data used by the processor when performing operations.

[0186] like Fig.11 As shown, a terminal 1100 according to an embodiment of the present invention includes a processor 1110 and a transceiver 1120, wherein:

[0187] The processor 1110 is used to control the transceiver 1120 to receive a first downlink reference signal configuration, wherein the terminal is located within the coverage of an intermediate node and the terminal can communicate with a base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; receive a second downlink reference signal configuration, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; measure the first downlink reference signal group and the second downlink reference signal group, and report a measurement report.

[0188] A terminal according to another embodiment of the present invention includes a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; when the processor executes the program or instruction, the measurement reporting method applied to the terminal side is implemented.

[0189] It is worth noting that the description of the transceiver, processor, memory and other components in the terminal can refer to the transceiver, processor, memory and the like in the base station side embodiment, and will not be repeated here to avoid repetition.

[0190] like Fig.12 As shown, an intermediate node 1200 according to an embodiment of the present invention includes a processor 1210 and a transceiver 1220, wherein:

[0191] The processor 1210 is configured to control the transceiver 1220 to receive a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node;

[0192] Forward the first downlink reference signal configuration to the terminal.

[0193] An intermediate node according to another embodiment of the present invention includes a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; when the processor executes the program or instruction, the measurement reporting method applied to the intermediate node side is implemented.

[0194] It is worth noting that the description of the transceiver, processor, memory and other components in the intermediate node can refer to the transceiver, processor, memory and the like in the base station side embodiment, and will not be repeated here to avoid repetition.

[0195] A readable storage medium according to an embodiment of the present invention stores a program or instruction thereon, and when the program or instruction is executed by a processor, the steps in the measurement configuration method as described above are implemented, or the steps in the measurement reporting method on the terminal side are implemented, or the steps in the measurement configuration method on the intermediate node side are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0196] The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0197] It should be further explained that the terminals described in this specification include but are not limited to smart phones, tablet computers, etc., and many of the functional components described are called modules in order to more particularly emphasize the independence of their implementation methods.

[0198] In the embodiment of the present invention, module can be implemented with software so that it can be executed by various types of processors. For example, an executable code module of an identification can include one or more physical or logical blocks of computer instructions, for example, it can be constructed as an object, process or function. Nevertheless, the executable code of the identified module does not need to be physically located together, but can include different instructions stored in different positions, and when these instructions are logically combined together, it constitutes a module and realizes the specified purpose of the module.

[0199] In fact, executable code module can be a single instruction or many instructions, and can even be distributed on a plurality of different code segments, distributed among different programs, and distributed across a plurality of memory devices. Similarly, operating data can be identified in the module, and can be implemented and organized in the data structure of any appropriate type according to any appropriate form. The operating data can be collected as a single data set, or can be distributed in different locations (including on different storage devices), and can only be present on a system or network as an electronic signal at least in part.

[0200] When a module can be implemented by software, considering the level of existing hardware technology, a person skilled in the art can build a corresponding hardware circuit to implement the corresponding function of the module that can be implemented by software without considering the cost. The hardware circuit includes a conventional very large scale integration (VLSI) circuit or gate array and existing semiconductors such as logic chips, transistors, or other discrete components. The module can also be implemented by a programmable hardware device, such as a field programmable gate array, a programmable array logic, a programmable logic device, etc.

[0201] The above exemplary embodiments are described with reference to the accompanying drawings, and many different forms and embodiments are feasible without departing from the spirit and teachings of the present invention. Therefore, the present invention should not be constructed as a limitation of the exemplary embodiments proposed herein. More specifically, these exemplary embodiments are provided so that the present invention will be perfect and complete, and the scope of the present invention will be conveyed to those who are familiar with the technology. In these figures, the component sizes and relative sizes may be exaggerated for clarity. The terms used here are only based on the purpose of describing specific exemplary embodiments and are not intended to be limiting. As used herein, unless the text clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to include these multiple forms. It will be further understood that the terms "including" and / or "comprising" when used in this specification indicate the presence of the features, integers, steps, operations, components and / or components, but do not exclude the presence or increase of one or more other features, integers, steps, operations, components, components and / or their groups. Unless otherwise indicated, when stated, a range of values ​​includes the upper and lower limits of that range and any subranges therebetween.

[0202] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A measurement configuration method, applied to a base station, characterized in that: include: Sending a first downlink reference signal configuration to a terminal, wherein the terminal is located within a coverage range of an intermediate node, the base station can communicate with the terminal through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; Sending a second downlink reference signal configuration to the terminal, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; receiving a measurement report of the terminal for the first downlink reference signal group and the second downlink reference signal group.

2. The measurement configuration method according to claim 1, characterized in that: After receiving the measurement report of the terminal for the first downlink reference signal group and the second downlink reference signal group, the method further includes: Based on the measurement report, a beam direction is determined.

3. The measurement configuration method according to claim 2, characterized in that: Based on the measurement report, determining the beam direction includes: Determining, based on the measurement report corresponding to the first downlink reference signal group, a first beam direction directed toward the intermediate node; Based on the measurement report corresponding to the second downlink reference signal group, a second beam direction directed toward the terminal is determined.

4. The measurement configuration method according to claim 2, characterized in that: Based on the measurement report, determining the beam direction includes: Based on the measurement report corresponding to the first downlink reference signal group and the measurement report corresponding to the second downlink reference signal group, the beam direction where the first downlink reference signal group is located and the beam direction where the second downlink reference signal group is located are weighted to determine a third beam direction.

5. The measurement configuration method according to any one of claims 1 to 4, characterized in that: Before receiving a measurement report by the terminal for the first downlink reference signal group and the second downlink reference signal group, the method further includes: Sending a measurement reporting configuration to the terminal, where the measurement reporting configuration is used to instruct the terminal to report any of the following: The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources with a signal strength higher than a first threshold and an absolute value of a difference between the signal strength of the M second downlink reference signal resources and that of the M second downlink reference signal resources is lower than a second threshold; The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement result of the first downlink reference signal resource whose channel estimation result and the correlation value of the channel estimation results of the M second downlink reference signal resources are less than a third threshold.

6. The measurement configuration method according to claim 1, characterized in that: The first downlink reference signal group includes N first downlink reference signal resources, and the N first downlink reference signal resources correspond to respective reflection coefficients; Before sending the first downlink reference signal configuration to the terminal, the method further includes: Send N first downlink reference signal resources to the target terminal respectively through the intermediate node according to their respective reflection coefficients, and the target terminal is all terminals in the area where the synchronization signal block SSB where the intermediate node is located and K adjacent SSBs are located; receiving measurement results of the N first downlink reference signal resource feedbacks fed back by the terminal, where the terminal is one of the target terminals; If the measurement result is higher than a preset threshold, it is determined that the terminal is located within the coverage of the intermediate node.

7. A measurement reporting method, applied to a terminal, characterized in that: include: receiving a first downlink reference signal configuration, wherein the terminal is located within the coverage of an intermediate node, the terminal can communicate with a base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; receiving a second downlink reference signal configuration, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; The first downlink reference signal group and the second downlink reference signal group are measured, and a measurement report is reported.

8. The measurement reporting method according to claim 7, characterized in that: Before measuring the first downlink reference signal group and the second downlink reference signal group and reporting the measurement report, the method further includes: Receive a measurement reporting configuration, where the measurement reporting configuration is used to instruct the terminal to report any of the following: The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement results of the first downlink reference signal resources with a signal strength higher than a first threshold and an absolute value of a difference between the signal strength of the M second downlink reference signal resources and that of the M second downlink reference signal resources is lower than a second threshold; The measurement results of the M second downlink reference signal resources with the strongest signal strength in the second downlink reference signal group, and the measurement result of the first downlink reference signal resource whose channel estimation result and the correlation value of the channel estimation results of the M second downlink reference signal resources are less than a third threshold.

9. The measurement reporting method according to claim 8, characterized in that: The measurement result includes: a correspondence between the first downlink reference signal resource and the second downlink reference signal resource, a received reference signal strength, and a reference signal index value.

10. A measurement reporting method, applied to an intermediate node, characterized in that: include: receiving a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; Forward the first downlink reference signal configuration to the terminal.

11. The measurement reporting method according to claim 10, characterized in that: The first downlink reference signal group includes N first downlink reference signal resources, and the N first downlink reference signal resources correspond to respective reflection coefficients; Before receiving the first downlink reference signal configuration, the method further includes: Receiving N downlink reference signal resources; The N first downlink reference signal resources are forwarded respectively according to respective reflection coefficients of the N first downlink reference signal resources.

12. A measurement configuration device, applied to a base station, characterized in that: include: A first sending module, configured to send a first downlink reference signal configuration to a terminal, wherein the terminal is located within a coverage range of an intermediate node, the base station can communicate with the terminal through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; A second sending module, configured to send a second downlink reference signal configuration to the terminal, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; The first receiving module is configured to receive a measurement report from the terminal regarding the first downlink reference signal group and the second downlink reference signal group.

13. A measurement reporting device, applied to a terminal, characterized in that: include: A first receiving module, configured to receive a first downlink reference signal configuration, wherein the terminal is located within the coverage of an intermediate node, the terminal can communicate with a base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; A second receiving module, configured to receive a second downlink reference signal configuration, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; The reporting module is used to measure the first downlink reference signal group and the second downlink reference signal group and report a measurement report.

14. A measurement reporting device, applied to an intermediate node, characterized in that: include: A first receiving module, configured to receive a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; The first forwarding module is configured to forward the first downlink reference signal configuration to a terminal.

15. A base station, characterized in that: include: A transceiver and a processor, wherein the processor is used to control the transceiver: Sending a first downlink reference signal configuration to a terminal, wherein the terminal is located within a coverage range of an intermediate node, the base station can communicate with the terminal through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; Sending a second downlink reference signal configuration to the terminal, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; receiving a measurement report of the terminal for the first downlink reference signal group and the second downlink reference signal group.

16. A terminal, characterized in that: include: A transceiver and a processor, wherein the processor is used to control the transceiver: receiving a first downlink reference signal configuration, wherein the terminal is located within the coverage of an intermediate node, the terminal can communicate with a base station through the intermediate node, and the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; receiving a second downlink reference signal configuration, wherein the second downlink reference signal configuration is used to indicate a second downlink reference signal group sent by the base station; The first downlink reference signal group and the second downlink reference signal group are measured, and a measurement report is reported.

17. An intermediate node, characterized in that: include: A transceiver and a processor, wherein the processor is used to control the transceiver: receiving a first downlink reference signal configuration, where the first downlink reference signal configuration is used to indicate a first downlink reference signal group reflected by the intermediate node; Forward the first downlink reference signal configuration to the terminal.

18. A base station, comprising: A transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; wherein the processor implements the measurement configuration method according to any one of claims 1 to 6 when executing the program or instruction.

19. A terminal, comprising: A transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; characterized in that when the processor executes the program or instruction, the measurement reporting method according to any one of claims 7 to 9 is implemented.

20. An intermediate node, comprising: A transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; characterized in that when the processor executes the program or instruction, the measurement reporting method according to any one of claims 10-11 is implemented.

21. A readable storage medium having a program or instruction stored thereon, characterized in that: When the program or instruction is executed by the processor, the steps in the measurement configuration method according to any one of claims 1 to 6 are implemented, or the steps in the measurement reporting method according to any one of claims 7 to 9 are implemented, or the steps in the measurement configuration method according to any one of claims 10 to 11 are implemented.

Images