Channel state information processing method and apparatus

Abstract

The embodiment of the present application discloses a kind of channel state information processing method and device, wherein method includes the following steps: network equipment configures at least one channel state information (CSI) reporting configuration information and at least one CSI reporting configuration information corresponding resource configuration information;One CSI reporting configuration information corresponds at least two resource configuration information;At least two resource configuration information one resource configuration information is used for interference measurement, including channel state information reference signal (CSI-RS) resource set;At least two resource configuration information one resource configuration information is used for channel measurement, including non-zero power channel state information reference signal (NZP CSI-RS) resource;One CSI-RS resource set corresponds at least one CSI report;Network equipment sends at least one CSI reporting configuration information and at least one CSI reporting configuration information corresponding resource configuration information to terminal equipment.The embodiment of the present application can make system have scalability, can avoid occupying too much downlink transmission resource.

Description

Technical Field

[0001] This invention relates to the field of communications, and more particularly to a method and apparatus for processing channel state information. Background Technology

[0002] In multi-base station cooperative multi-point transmission scenarios, the network side needs to configure multiple channels and interference measurement resources, and the terminal equipment side needs to measure and feed back Channel State Information (CSI) under one or more interference conditions, so that the network side can reasonably determine the transmission scheme, corresponding link adaptive configuration, and scheduling strategy for multi-base station cooperative multi-point transmission based on multiple CSIs.

[0003] Figure 1 The diagram illustrates a scenario of three base stations cooperating in multi-point transmission. Transmission Reception Points (TRPs) 1, 2, and 3 are cooperating transmission base stations within the cooperation set, while TRP 4 is an interfering base station outside the cooperation set. For TRP 1, the following possible interference combinations exist:

[0004] Interference measurement assumption 1: Interference from TRP 2 within the cooperative set and interference from TRP 4 outside the cooperative set;

[0005] Interference measurement assumption 2: interference of TRP 3 within the cooperative set and interference of TRP 4 outside the cooperative set;

[0006] Interference measurement assumption 3: Interference from TRP 2 and TRP 3 within the cooperative set, and interference from TRP 4 outside the cooperative set;

[0007] Interference measurement assumption 4: Interference from outside the cooperative set TRP 4;

[0008] To determine the multi-base station cooperative transmission scheme, the corresponding link adaptive configuration, and the scheduling strategy, the network side needs the terminal equipment to measure and provide feedback on the CSI under one or more of the above interference measurement assumptions.

[0009] In Long Term Evolution (LTE), the network side configures Channel State Information (CSI) processes, and terminal devices measure and report according to these CSI processes. To measure CSI under different interference conditions, multiple CSI processes need to be configured. Each CSI process corresponds to one interference measurement assumption. As the number of cooperating base stations increases, so do the interference measurement assumptions, leading to an increase in the number of CSI processes required for measurement reporting, thus making the system unscalable. A CSI process includes one Non-Zero Power Channel State Information-Reference Signal (NZP CSI-RS) resource for channel measurement and one Zero Power Channel State Information-Reference Signal (ZP CSI-RS) resource for interference measurement. With increasing interference measurement assumptions, more ZP CSI-RS resources need to be configured, resulting in a significant amount of downlink transmission resources being consumed. Summary of the Invention

[0010] The technical problem to be solved by the embodiments of the present invention is to provide a channel state information processing method and apparatus, which can make the system scalable and avoid occupying too much downlink transmission resources.

[0011] In a first aspect, embodiments of the present invention provide a channel state information processing method, comprising: a network device configuring at least one channel state information (CSI) reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information; one of the CSI reporting configuration information corresponds to at least two resource configuration information; one of the at least two resource configuration information is used for interference measurement, including a channel state information reference signal (CSI-RS) resource set; one of the at least two resource configuration information is used for channel measurement, including a non-zero power channel state information reference signal (NZP) CSI-RS resource; one of the CSI-RS resource sets corresponds to at least one CSI report; and the network device sends the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information to a terminal device. Through the above configuration, when the number of cooperating base stations increases, only the number of configured CSI-RS resource sets needs to be increased, without increasing the configuration of CSI reporting configuration information and resource configuration information, which makes the system scalable and avoids occupying excessive downlink transmission resources.

[0012] In one possible implementation, a CSI-RS resource set includes at least one of NZP CSI-RS resources and Zero Power Channel State Information Reference Signal (ZP CSI-RS) resources, and the CSI-RS resource set corresponds to at least one interference measurement assumption. With an increased number of cooperating base stations, it is not necessary to configure a large number of ZP CSI-RS resources, thus avoiding excessive consumption of downlink transmission resources.

[0013] In one possible implementation, the network device sends measurement resource indication information to the terminal device, instructing the terminal device to perform measurements based on N CSI-RS resource sets. The N CSI-RS resource sets are N out of M CSI-RS resource sets, where the M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information, and M and N are positive integers, 1 ≤ N ≤ M. This method of instructing the terminal device to perform measurements by the network device makes the measurements by the terminal device more targeted.

[0014] In one possible implementation, when the network device sends the measurement resource indication information to the terminal device, it can also send reporting indication information to the terminal device. This reporting indication information instructs the terminal device to report L CSI reports, where the L CSI reports are L of the N' CSI reports corresponding to the N CSI-RS resource sets, and L and N' are positive integers, 1 ≤ L ≤ N', and N ≤ N'. Further, instructing the terminal device to report via the reporting indication information makes the reporting more targeted.

[0015] In one possible implementation, the reporting instruction information further indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports, so that the terminal device can report according to the identifier of the indicated CSI-RS resource set; or the reporting instruction information further indicates that the terminal device can report the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports, so that the network device can associate the CSI reports with the CSI-RS resource sets.

[0016] In one possible implementation, the network device sends a reporting instruction to the terminal device, instructing the terminal device to report K CSI reports. These K CSI reports are K of the M' CSI reports corresponding to M CSI-RS resource sets, where the M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M, M', and K are positive integers, where 1 ≤ K ≤ M' and M ≤ M'. By instructing the terminal device to report K of the measured M' CSI reports through the reporting instruction, the reporting becomes targeted.

[0017] In one possible implementation, the reporting instruction information further indicates the identifier of the CSI-RS resource set corresponding to each of the K CSI reports, so that the terminal device can report according to the identifier of the indicated CSI-RS resource set; or the reporting instruction information further indicates that the terminal device can report the identifier of the CSI-RS resource set corresponding to each of the K CSI reports, so that the network device can associate the CSI report with the CSI-RS resource set.

[0018] In one possible implementation, the network device configures association indication information corresponding to the at least one CSI reporting configuration information, wherein one CSI reporting configuration information corresponds to at least two association indication information; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for channel measurement; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for interference measurement;

[0019] The network device sends the associated indication information corresponding to the at least one CSI reporting configuration information to the terminal device.

[0020] Secondly, embodiments of the present invention provide a network device having the function of implementing the network device behavior described in the method of the first aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described function.

[0021] In one possible implementation, the network device includes a processing unit and a transmitting unit. The processing unit is configured to configure at least one CSI reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information; one of the CSI reporting configuration information corresponds to at least two resource configuration information; one of the at least two resource configuration information is used for interference measurement, including a CSI-RS resource set; one of the at least two resource configuration information is used for channel measurement, including NZP CSI-RS resources; one of the CSI-RS resource sets corresponds to at least one CSI report; and the transmitting unit is configured to transmit the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information to a terminal device.

[0022] In one possible implementation, the processor is configured to configure at least one Channel State Information (CSI) reporting configuration and corresponding resource configuration information; one CSI reporting configuration corresponds to at least two resource configurations; one of the at least two resource configurations is used for interference measurement, including a Channel State Information Reference Signal (CSI-RS) resource set; one of the at least two resource configurations is used for channel measurement, including a Non-Zero Power Channel State Information Reference Signal (NZP) CSI-RS resource; one CSI-RS resource set corresponds to at least one CSI report; the transceiver is configured to send the at least one CSI reporting configuration and corresponding resource configuration information to the terminal device.

[0023] Based on the same inventive concept, the principle of the network device in solving the problem and its beneficial effects can be found in the method described in the first aspect and the beneficial effects it brings. The implementation of the network device can be found in the implementation of the method described in the first aspect, and repeated details will not be repeated.

[0024] Thirdly, embodiments of the present invention provide a channel state information processing method, comprising: a terminal device performing measurement based on resource configuration information corresponding to at least one CSI reporting configuration information; one CSI reporting configuration information corresponding to at least two resource configuration information; one of the at least two resource configuration information being used for interference measurement, including a channel state information reference signal (CSI-RS) resource set; one of the at least two resource configuration information being used for channel measurement, including an NZP CSI-RS resource; the terminal device sending a CSI measurement result to a network device, the CSI measurement result including a CSI report, and one CSI-RS resource set corresponding to at least one CSI report.

[0025] In one possible implementation, a CSI-RS resource set includes at least one of NZP CSI-RS resources and ZPCSI-RS resources, and the CSI-RS resource set corresponds to at least one interference measurement assumption.

[0026] In one possible implementation, the terminal device performs measurements based on resource configuration information corresponding to at least one CSI reported configuration information, including: the terminal device performs measurements based on resource configuration information for channel measurement corresponding to at least one CSI reported configuration information; the terminal device performs measurements based on resource configuration information for interference measurement corresponding to the at least one CSI reported configuration information.

[0027] In one possible implementation, the terminal device performs measurements based on resource configuration information for interference measurement corresponding to the at least one CSI reporting configuration information. This includes: the terminal device performing measurements based on a resource set indicated by measurement resource indication information sent by the network device. The measurement resource indication information instructs the terminal device to perform measurements based on N CSI-RS resource sets, where N is one of M CSI-RS resource sets, and the M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information, where M and N are positive integers, and 1 ≤ N ≤ M. The terminal device performing measurements based on the measurement resource indication information makes the measurements targeted.

[0028] In one possible implementation, the terminal device sends CSI measurement results to the network device, including: the terminal device sending CSI measurement results to the network device according to reporting instruction information sent by the network device. The CSI measurement results include L CSI reports, where the L CSI reports are L of the N' CSI reports corresponding to the N CSI-RS resource sets, and L and N' are positive integers, 1 ≤ L ≤ N', and N ≤ N'. The terminal device reports according to the reporting instruction information, making the reporting targeted.

[0029] In one possible implementation, the reporting instruction information further indicates the identifier of the CSI-RS resource set corresponding to each of the L CSI reports, so that the terminal device can report according to the identifier of the indicated CSI-RS resource set; or the measurement result further includes the identifier of the CSI-RS resource set corresponding to each of the L CSI reports, so that the network device can associate the CSI report with the CSI-RS resource set.

[0030] In one possible implementation, the terminal device sends CSI measurement results to the network device, including: the terminal device sending CSI measurement results to the network device according to reporting instruction information sent by the network device. The CSI measurement results include K CSI reports, where the K CSI reports are K of the M' CSI reports corresponding to M CSI-RS resource sets. The M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information, where M, M', and K are positive integers, 1 ≤ K ≤ M', and M ≤ M'. The terminal device reports according to the reporting instruction information, making the reporting targeted.

[0031] In one possible implementation, the reporting instruction information further indicates the identifier of the CSI-RS resource set corresponding to each of the K CSI reports, so that the terminal device can report according to the identifier of the indicated CSI-RS resource set; or the measurement result further includes the identifier of the CSI-RS resource set corresponding to each of the K CSI reports, so that the network device can associate the CSI report with the CSI-RS resource set.

[0032] In one possible implementation, before the terminal device performs measurement based on resource configuration information corresponding to at least one Channel State Information (CSI) reporting configuration information, the method further includes: the terminal device receiving the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information sent by the network device.

[0033] In one possible implementation, the terminal device receives association indication information corresponding to the at least one CSI reporting configuration information sent by the network device, wherein one CSI reporting configuration information corresponds to at least two association indication information; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for channel measurement; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for interference measurement.

[0034] Fourthly, embodiments of the present invention provide a terminal device having the function of implementing the terminal device behavior in the method described in the first aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described function.

[0035] In one possible implementation, the terminal device includes a processing unit and a transmitting unit. The processing unit is used to perform measurements based on resource configuration information corresponding to at least one CSI reporting configuration information. One of the CSI reporting configuration information corresponds to at least two resource configuration information. One of the at least two resource configuration information is used for interference measurement, including a Channel State Information Reference Signal (CSI-RS) resource set. Another of the at least two resource configuration information is used for channel measurement, including NZP CSI-RS resources. The transmitting unit is used to send CSI measurement results to the network device. The CSI measurement results include CSI reports, and one CSI-RS resource set corresponds to at least one CSI report.

[0036] In one possible implementation, the processor is configured to perform measurements based on resource configuration information corresponding to at least one CSI reporting configuration information; one CSI reporting configuration information corresponds to at least two resource configuration information; one of the at least two resource configuration information is used for interference measurement, including a Channel State Information Reference Signal (CSI-RS) resource set; one of the at least two resource configuration information is used for channel measurement, including NZP CSI-RS resources; the transceiver is configured to send CSI measurement results to the network device, the CSI measurement results including CSI reports, and one CSI-RS resource set corresponds to at least one CSI report.

[0037] Based on the same inventive concept, the principle of the terminal device in solving the problem and its beneficial effects can be found in the method described in the third aspect and the beneficial effects it brings. The implementation of the terminal device can be found in the implementation of the method described in the third aspect, and the repeated parts will not be repeated.

[0038] Fifthly, embodiments of the present invention provide a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the method as described in the first aspect.

[0039] In a sixth aspect, embodiments of the present invention provide a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the method as described in the third aspect.

[0040] In this embodiment of the invention, the network device configures and sends at least one CSI reporting configuration information and corresponding resource configuration information, enabling the terminal device to perform measurements based on the resource configuration information corresponding to the at least one CSI reporting configuration information. With an increase in the number of cooperating base stations, only the number of configured CSI-RS resource sets needs to be increased; the number of CSI reporting configuration information or resource configuration information does not need to be increased, thus making the system scalable. Furthermore, multiple CSI-RS resource sets can share the same CSI-RS resources, saving downlink transmission resources and improving the sharing of measurement resources and results. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the background art, the accompanying drawings used in the embodiments of the present invention or the background art will be described below.

[0042] Figure 1 This is a schematic diagram of a scenario where three base stations cooperate for multi-point transmission;

[0043] Figure 2 This is an example diagram of an existing measurement configuration indication scheme;

[0044] Figure 3 This is an example diagram of an existing measurement reporting scheme;

[0045] Figure 4 This is a communication schematic diagram of a channel state information processing method provided in an embodiment of the present invention;

[0046] Figure 5 The embodiments of the present invention are based on Figure 1 Channel state information reference signal resource allocation example table;

[0047] Figure 6 This is an example diagram of a channel state information reference signal resource set provided in an embodiment of the present invention;

[0048] Figure 7 This is a configuration example diagram provided by an embodiment of the present invention;

[0049] Figure 8 This is another configuration example diagram provided by an embodiment of the present invention;

[0050] Figure 9 This is a communication schematic diagram of another channel state information processing method provided in an embodiment of the present invention;

[0051] Figure 10 The embodiments of the present invention are based on Figure 1 Configuration example table;

[0052] Figure 11 This is a schematic diagram of the logical structure of a network device provided in an embodiment of the present invention;

[0053] Figure 12 This is a schematic diagram of the physical structure of the network device provided in an embodiment of the present invention;

[0054] Figure 13 This is a schematic diagram of the logical structure of the terminal device provided in an embodiment of the present invention;

[0055] Figure 14 This is a schematic diagram of the physical structure of the terminal device provided in an embodiment of the present invention. Detailed Implementation

[0056] This invention can be applied to wireless communication systems, which typically consist of cells, each containing a base station (BS). The base station provides communication services to multiple terminal devices. The base station includes a baseband unit (BBU) and a remote radio unit (RRU). The BBU and RRU can be located in different places; for example, the RRU can be moved to a remote, open area away from high traffic volume, while the BBU is located in a central equipment room. Alternatively, the BBU and RRU can be located in the same equipment room. Furthermore, the BBU and RRU can be different components within the same rack.

[0057] It should be noted that the wireless communication systems mentioned in the embodiments of the present invention include, but are not limited to: Narrow Band-Internet of Things (NB-IoT), Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access 2000 (CDMA2000), Time Division-Synchronization Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), NR systems, and future mobile communication systems.

[0058] In this embodiment of the invention, the base station is a device deployed in a wireless access network to provide wireless communication functions for terminal devices. The base station may include various forms of macro base stations, micro base stations (also called small stations), relay stations, access points, TRPs, etc. In systems employing different wireless access technologies, the name of the device with base station functionality may differ. For example, in an LTE system, it is called an evolved Node B (eNB or eNodeB), and in a third-generation (3G) system, it is called a Node B (NB), etc. For ease of description, in all embodiments of the present invention, the aforementioned device providing wireless communication functions for terminal devices is collectively referred to as a network device.

[0059] The terminal devices involved in the embodiments of this invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication capabilities. The terminal devices may also be referred to as mobile stations (MS) or terminals, and may include subscriber units, cellular phones, smartphones, wireless data cards, personal digital assistant (PDA) computers, tablet computers, wireless modems, handsets, laptop computers, machine-type communication (MTC) terminals, etc. For ease of description, in all embodiments of this invention, the devices mentioned above are collectively referred to as terminal devices.

[0060] The embodiments of the present invention can be applied to Figure 1The diagram illustrates a scenario of three-base station cooperative multi-point transmission. TRP 1, TRP 2, and TRP 3 are cooperative transmission base stations within the cooperative set, while TRP 4 is an interfering base station outside the cooperative set. For a given TRP within the cooperative set, there is at least one possibility: interference from other TRPs within the set or interference from TRPs outside the set. For example, for TRP 1, there are four possible interference measurement assumptions: First, interference from TRP 2 within the cooperative set and interference from TRP 4 outside the set; second, interference from TRP 3 within the cooperative set and interference from TRP 4 outside the set; third, interference from TRP 2 and TRP 3 within the cooperative set, and interference from TRP 4 outside the set; fourth, interference from TRP 4 outside the set. In cases with multiple interference measurement assumptions, the network side needs to determine the multi-base station cooperative transmission scheme, corresponding link adaptive configuration, and scheduling strategy. This requires the terminal equipment to measure and feedback CSI under one or more interference measurement assumptions.

[0061] In LTE, the network side configures one CSI process for each interference measurement assumption. As the number of cooperating base stations increases, so do the interference measurement assumptions, leading to an increase in the number of CSI processes required, thus hindering system scalability. A CSI process includes a non-zero power channel state information reference signal (NZP CSI-RS) resource for channel measurement and a ZP CSI-RS resource for interference measurement. With increased interference measurement assumptions, more ZP CSI-RS resources need to be configured, resulting in a significant amount of downlink transmission resources being consumed.

[0062] Therefore, embodiments of the present invention provide a channel state information processing method and apparatus, which can make the system scalable when the number of cooperating base stations increases, and can avoid occupying too much downlink transmission resources.

[0063] The 3rd Generation Partnership Project (3GPP) New Radio (NR) defines a new CSI measurement reporting architecture, including CSI Reporting Settings, Resource Settings, and Measurement Settings. For a given terminal device, a Measurement Setting is configured. This Measurement Setting includes at least one CSI Reporting Setting, at least one Resource Setting, and at least one link. A link indicates the association between a CSI Reporting Setting and a Resource Setting, and also indicates whether the Resource Setting is used for channel measurement or interference measurement.

[0064] Figure 2 This diagram illustrates a measurement configuration indication scheme based on the CSI measurement reporting architecture. Taking CSIReporting Setting 0 as an example, it connects to Resource Setting 0 and Resource Setting 1 via two links. Resource Setting 0 contains K Channel State Information-Interference Measurement (CSI-IM) resources for interference measurement. Resource Setting 1 contains one Channel State Information-Reference Signal (CSI-RS) resource for channel measurement. In this scheme, I CSI-IM resources are selected from the K resources as an interference measurement assumption. When calculating CSI, the signal part is measured by the CSI-RS resource in Resource Setting 1, and the interference part is measured by the CSI-IM resource in Resource Setting 0. If multiple interference measurement assumptions need to be measured, the network side needs to indicate multiple interference measurement assumptions, requiring multiple indications, each indicating several CSI-IM resources, resulting in significant indication overhead.

[0065] Please see Figure 3The diagram below is an example of an existing measurement reporting method. The network side is configured with three Resource Settings: Resource Setting 0 corresponds to channel measurement, Resource Setting 1 corresponds to interference measurement 1, and Resource Setting 2 corresponds to interference measurement 2. Figure 3 There are four interference measurement hypotheses (H1-H4). The terminal device selects one or more CSI reports corresponding to each interference measurement hypothesis based on certain criteria, along with the corresponding indication information for that hypothesis, and reports it. The indication information includes one or more Resource Setting numbers. For example, to report CSI reports corresponding to H1 and H3, Resource Setting numbers 1 and 2 for H1 and Resource Setting number 2 for H3 need to be reported. As the number of cooperating base stations increases, the number of Resource Setting numbers also increases, as do the number of interference measurement hypotheses and the number of Resource Setting numbers included in each hypothesis, leading to increased reporting overhead for the terminal device.

[0066] Given that the network-side indication of interference measurement assumptions increases the overhead of indication, and the terminal-side reporting increases the overhead of reporting, the channel state information processing method and apparatus provided in this embodiment of the invention allow the network side to instruct the terminal side to selectively measure and report, and both measurement and reporting are targeted at the CSI-RS resource set, thereby saving indication and reporting overhead.

[0067] The following will be combined with the appendix Figure 4 -Appendix Figure 9 The channel state information processing method provided in the embodiments of the present invention will be described in detail.

[0068] Please see Figure 4 , Figure 4 This is a communication diagram illustrating a channel state information processing method provided in an embodiment of the present invention. The method is described from the perspective of interaction between network devices and terminal devices, and includes, but is not limited to, the following steps:

[0069] Step S201: The network device configures at least one CSI reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information;

[0070] Specifically, a network device can configure at least one CSI reporting setting and corresponding resource setting for any terminal device within its coverage area. Each CSI reporting setting corresponds to at least two resource settings. The resource settings corresponding to each of the at least one CSI reporting setting are a set, including at least two resource settings for each CSI reporting setting. That is, the network device can associate and configure at least two resource settings for each CSI reporting setting, meaning each CSI reporting setting corresponds to at least two resource settings. In this embodiment, the at least two resource settings are described using two resource settings as an example; the cases of three or more settings can be deduced similarly.

[0071] One of the at least two resource configuration information corresponding to the CSI reporting configuration information is used for interference measurement, including a CSI-RS Resource Set, specifically including at least one CSI-RS resource set; the other of the at least two resource configuration information is used for channel measurement, including NZP CSI-RS resources, specifically including at least one NZP CSI-RS resource. Each CSI-RS Resource Set corresponds to at least one interference measurement assumption, and the CSI-RS Resource Set includes at least one of NZP CSI-RS resources and ZP CSI-RS resources. For example, if a CSI-RS Resource Set corresponds to one interference measurement assumption, and CSI-RS Resource Set #1 includes NZP CSI-RS resource B and ZP CSI-RS resource D, then CSI-RS Resource Set #1 corresponds to one interference measurement assumption.

[0072] For example, CSI Reporting Setting 0 is associated with Resource Setting 0 and Resource Setting 1. Resource Setting 0 is used for channel measurements and includes at least one NZP CSI-RS resource; Resource Setting 1 is used for interference measurements and includes at least one CSI-RS Resource Set.

[0073] One CSI-RS resource set corresponds to at least one CSI report. A CSI report includes channel measurement results and interference measurement results. When the resource configuration information for channel measurement includes one NZP CSI-RS resource, one CSI-RS resource set corresponds to one CSI report; when the resource configuration information for channel measurement includes two or more NZP CSI-RS resources, one CSI-RS resource set corresponds to two or more CSI reports.

[0074] One CSI reporting configuration information corresponds to at least two resource configuration information. Resource configuration information used for interference measurement corresponds to at least one CSI-RS resource set. Therefore, it can be deduced that one CSI reporting configuration information corresponds to at least one CSI-RS resource set, and further, that the at least one CSI reporting configuration information corresponds to at least one CSI-RS resource set. In all embodiments of this invention, let M be the number of all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information, that is, the at least one CSI reporting configuration information corresponds to M CSI-RS resource sets, where M is a positive integer, M≥1, and the specific value of M is not limited.

[0075] The CSI reporting configuration information includes the configuration information for the CSI report. This configuration information can be used to instruct the terminal device on the content of the CSI report to be reported. The content of the CSI report may include at least one of the following parameters: Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Rank Indication (RI), and Channel State Information-Reference Signal Resource Indicator (CRI). The CSI report configuration information can also instruct the terminal device to report time-domain characteristics, frequency-domain characteristics, etc.

[0076] The network device can configure associated indication information corresponding to the at least one CSI reporting configuration information, and one CSI reporting configuration information corresponds to at least two associated indication information (Link). The associated indication information corresponding to the at least one CSI reporting configuration information is a set, which includes at least two associated indication information corresponding to each CSI reporting configuration information. That is, the network device can configure at least two associated indication information for each CSI reporting configuration information. One of the at least two associated indication information indicates an identifier of a CSI reporting configuration information and an identifier of a resource configuration information, and indicates that the resource configuration information is used for channel measurement; another of the at least two associated indication information indicates an identifier of a CSI reporting configuration information and an identifier of a resource configuration information, and indicates that the resource configuration information is used for interference measurement. In this embodiment of the invention, at least two associated indication information are described as an example of two associated indication information, and the cases of three or more can be deduced by analogy. For example, for CSI Reporting Setting 0, Link 1 and Link 2 are configured. Link 1 indicates that the identifier of CSI Reporting Setting is 0, the identifier of Resource Setting is 0, and Resource Setting 0 is used for channel measurement; Link 2 indicates that the identifier of CSI Reporting Setting is 0, the identifier of Resource Setting is 1, and Resource Setting 1 is used for interference measurement.

[0077] The network device can configure at least one CSI reporting configuration information and corresponding resource configuration information in Radio Resource Control (RRC) signaling. The network device can also configure at least one CSI reporting configuration information, corresponding resource configuration information, and associated indication information in RRC signaling.

[0078] based on Figure 1 The scenario diagram shown illustrates the allocation of NZP CSI-RS resources for TRP 1 (A), TRP 2 (B), TRP 3 (C), and TRP 1, TRP 2, and TRP 3 (D). (See also...) Figure 5 The following is based on Figure 1Example table of CSI-RS resource allocation. Among them, NZP CSI-RS resource can be used for both interference measurement and channel measurement. ZP CSI-RSresource(D) can be used for interference measurement. According to... Figure 5 The CSI-RS resource allocation example table shown can be represented by the four possible interference measurement assumptions for TRP 1 as follows:

[0079] Interference measurement assumption 1: NZP CSI-RS resource(B) + ZP CSI-RS resource(D);

[0080] Interference measurement assumption 2: NZP CSI-RS resource(C) + ZP CSI-RS resource(D);

[0081] Interference measurement assumption 3: NZP CSI-RS resource(B) + NZP CSI-RS resource(C) + ZPCSI-RS resource(D);

[0082] Interference measurement assumption 3: ZP CSI-RS resource(D).

[0083] When one interference measurement assumption corresponds to one CSI-RS Resource Set, then the above four interference measurement assumptions can be expressed as four CSI-RS Resource Sets, which can be found in [reference needed]. Figure 6 The example diagram of a CSI-RS resource set shown can be represented as follows:

[0084] CSI-RS Resource Set #1 includes NZP CSI-RS resource (B) and ZP CSI-RS resource (D);

[0085] CSI-RS Resource Set #2 includes NZP CSI-RS resource (C) and ZP CSI-RS resource (D);

[0086] CSI-RS Resource Set #3 includes NZP CSI-RS resource B, NZP CSI-RS resource C, and ZP CSI-RS resource (D);

[0087] CSI-RS Resource Set #4 includes ZP CSI-RS resource(D).

[0088] As can be seen from the above four CSI-RS Resource Sets, two CSI-RS Resource Sets can include the same NZP CSI-RS resource, the same ZP CSI-RS resource, or the same NZPCSI-RS resource and ZP CSI-RS resource. Therefore, it can be deduced that multiple CSI-RS Resource Sets can share the same CSI-RS resource. This can overcome the drawbacks of LTE, such as the large amount of downlink transmission resources occupied and the inability of CSI processes to share measurement resources and results. This can save downlink transmission resources and improve the degree of sharing of measurement resources and results.

[0089] Please see Figure 7 This is a configuration example diagram provided in an embodiment of the present invention, based on... Figure 1 The illustrated scenario shows a network device configured with CSI Reporting Setting 0, and associated with it Resource Setting 0 and Resource Setting 1, as well as Link 1 and Link 2. Link 1 indicates the association between CSI Reporting Setting 0 and Resource Setting 0, and specifies that Resource Setting 0 is used for channel measurement; Link 2 indicates the association between CSI Reporting Setting 0 and Resource Setting 1, and specifies that Resource Setting 1 is used for channel measurement. Resource Setting 0 includes the NZP CSI-RS resource(A), and Resource Setting 1 includes the four CSI-RS Resource Sets mentioned above.

[0090] Please see Figure 8This is another configuration example diagram provided by an embodiment of the present invention. The network device is configured with CSI Reporting Setting 0, and Resource Setting 0 and Resource Setting 1, Link 1 and Link 2 are configured in association with CSI Reporting Setting 0. Link 1 indicates the association between CSI Reporting Setting 0 and Resource Setting 0, and indicates that Resource Setting 0 is used for channel measurement; Link 2 indicates the association between CSI Reporting Setting 0 and Resource Setting 1, and indicates that Resource Setting 1 is used for channel measurement. Resource Setting 0 includes NZP CSI-RS resource (A) and NZP CSI-RS resource (B), and Resource Setting 1 includes the following three CSI-RS Resource Sets:

[0091] CSI-RS Resource Set #1 includes NZP CSI-RS resource (C) and ZP CSI-RS resource (D);

[0092] CSI-RS Resource Set #2 includes NZP CSI-RS resource (A) and ZP CSI-RS resource (D);

[0093] CSI-RS Resource Set #3 includes ZP CSI-RS resource(D).

[0094] It should be noted that, Figure 7 , Figure 8 This example uses a single CSI Reporting Setting. For cases with two or more CSI Reporting Settings, the specific steps can be determined based on... Figure 7 , Figure 8 And so on. Figure 7 Taking Resource Setting 0 as an example, which includes only one NZP CSI-RS resource (A), Figure 8 Taking Resource Setting 0 as an example, which includes only two NZP CSI-RS resources, for cases where the resource configuration information used for channel measurement includes more than two NZP CSI-RS resources, it can be determined according to... Figure 8 Expand upon.

[0095] When the number of NZP CSI-RS resources included in the resource configuration information for channel measurement is greater than one, the network device can also configure the correspondence between the NZP CSI-RS resources used for channel measurement and the set of CSI-RS resources used for interference measurement. For example, Figure 8 In the configuration, the network devices are configured with the following correspondence:

[0096] Correspondence 1: Between NZP CSI-RS resource(A) and CSI-RS Resource Set#1;

[0097] Correspondence 2: Between NZP CSI-RS resource(A) and CSI-RS Resource Set#3;

[0098] Correspondence 3: Between NZP CSI-RS resource(B) and CSI-RS Resource Set#1;

[0099] Correspondence 4: Between NZP CSI-RS resource(B) and CSI-RS Resource Set#2;

[0100] Correspondence 5: Between NZP CSI-RS resource(B) and CSI-RS Resource Set#3.

[0101] The above correspondences 1-5 are used to indicate Figure 8 The relationship between resource configuration information 0 used for channel measurement and resource configuration information 1 used for interference measurement is defined as follows: If there is also a relationship between resource configuration information 0 and resource configuration information 2 used for interference measurement, then the above five correspondences can be called the first correspondences. The correspondence between the NZPCSI-RS resources in resource configuration information 0 and the CSI-RS resource set in resource configuration information 2 can be called the second correspondences.

[0102] Optionally, the network device may configure the correspondence between NZP CSI-RS resources used for channel measurement and the set of CSI-RS resources used for interference measurement in the RRC signaling. This RRC signaling may be the same as or different from the RRC signaling that configures the configuration information for the at least one CSI reporting.

[0103] Optionally, the network device configures the correspondence between NZP CSI-RS resources used for channel measurement and CSI-RS resource sets used for interference measurement in dynamic signaling. The dynamic signaling may be a Media Access Control-Control Element (MAC-CE) or other Layer 2 signaling. The dynamic signaling may also be Downlink Control Information (DCI).

[0104] With the above configuration, as the number of cooperating base stations increases, the interference measurement assumptions also increase. In this case, the network equipment only needs to increase the number of CSI-RS Resource Sets, without increasing the number of CSI Reporting Settings or Resource Settings, which makes the system scalable.

[0105] Optionally, the network device may also configure whether the terminal device reports periodically in the at least one CSI reporting configuration information. For example, the network device may configure the terminal device to report periodically, or configure the terminal device to report non-periodically, or configure the terminal device to report semi-persistently.

[0106] Optionally, the network device can also configure CSI-RS resources to be sent periodically, non-periodically, or semi-persistently in the resource configuration information. The CSI-RS resource can be an NZPCSI-RS resource or a ZP CSI-RS resource.

[0107] Step S202: The network device sends the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information to the terminal device;

[0108] Optionally, after sending the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information to the terminal device, the network device then sends the association indication information corresponding to the at least one CSI reporting configuration information.

[0109] Optionally, after sending the association indication information corresponding to the at least one CSI reporting configuration information to the terminal device, the network device then sends the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information.

[0110] Optionally, the network device may simultaneously send the at least one CSI reporting configuration information, the resource configuration information corresponding to the at least one CSI reporting configuration information, and the association indication information corresponding to the at least one CSI reporting configuration information to the terminal device.

[0111] The network device can send at least one CSI reporting configuration information and corresponding resource configuration information to the terminal device via RRC signaling. The network device can also send association indication information corresponding to the at least one CSI reporting configuration information to the terminal device via RRC signaling.

[0112] If the network device is configured with a mapping between NZP CSI-RS resources for channel measurement and CSI-RS resource sets for interference measurement, then the network device also sends the mapping between the NZP CSI-RS resources for channel measurement and the CSI-RS resource sets for interference measurement to the terminal device. This can be sent via RRC signaling or via the dynamic signaling.

[0113] Step S203: The terminal device receives at least one CSI reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information sent by the network device;

[0114] Specifically, the terminal device can receive the at least one CSI reported configuration information and the corresponding resource configuration information via RRC signaling, and can also receive the associated indication information corresponding to the at least one CSI reported configuration information via RRC signaling. Upon receiving the above configuration information, the terminal device can store it.

[0115] If the network device sends the correspondence between the NZP CSI-RS resources used for channel measurement and the CSI-RS resource set used for interference measurement, then the terminal device also receives the correspondence between the NZP CSI-RS resources used for channel measurement and the CSI-RS resource set used for interference measurement.

[0116] Step S204: The terminal device performs measurements based on the resource configuration information corresponding to the configuration information reported by at least one CSI;

[0117] Specifically, the terminal device performs measurements based on resource configuration information for channel measurement corresponding to the at least one CSI reported configuration information. For example, Figure 7In this process, the terminal device can perform measurements based on the NZP CSI-RS resource(A) to obtain a channel measurement result, which can be used to calculate at least one of parameters such as CQI, RI, PMI, and CRI.

[0118] The terminal device performs measurements based on the resource configuration information for interference measurement corresponding to the at least one CSI reported configuration information.

[0119] In one possible implementation, the terminal device can perform measurements based on M CSI-RS resource sets corresponding to the at least one CSI reporting configuration information; in other words, the terminal device performs measurements based on all CSI-RS resource sets configured by the network device.

[0120] For example, Figure 7 In the configuration, Resource setting 0 corresponding to CSI Reporting Setting 0 includes one NZP CSI-RS Resource (A) for channel measurement, and Resource Setting 1 includes four CSI-RS Resource Sets. Each CSI-RS Resource Set includes at least one of two NZP CSI-RS Resources (B, C) for interference measurement and one ZP CSI-RS Resource (D) for interference measurement. The terminal device can perform measurements based on this one NZP CSI-RS Resource (A) for channel measurement and these four CSI-RS Resource Sets, and can obtain four CSI reports. That is, the terminal device obtains one CSI report by performing measurements on one NZP CSI-RS Resource for channel measurement and one CSI-RS Resource Set for interference measurement.

[0121] For example, Figure 8In the configuration, CSI Reporting Setting 0 corresponds to Resource Setting 0, which includes two NZP CSI-RS Resources (A, B) for channel measurement. Resource Setting 1 includes three CSI-RS Resource Sets. Each CSI-RS Resource Set includes at least one of two NZP CSI-RS Resources (A, C) for interference measurement and one ZP CSI-RS Resource (D) for interference measurement. The terminal device can perform measurements based on NZP CSI-RS Resource (A) and CSI-RS Resource Set #1 and CSI-RS Resource Set #3 for channel measurement, obtaining two CSI reports. It can also perform measurements based on NZP CSI-RS Resource (B) and these three CSI-RS Resource Sets, obtaining three CSI reports. That is, the terminal device can obtain two CSI reports based on CSI-RS Resource Set #1, one CSI report based on CSI-RS Resource Set #2, and one CSI report based on CSI-RS Resource Set #3. Measurements taken with Set#3 will yield two CSI reports.

[0122] It is understood that this possible implementation method can correspond to the case where the network device is configured to periodically report the terminal device, the case where the network device is configured to non-periodically report the terminal device, or the case where the network device is configured to semi-persistently report the terminal device.

[0123] In one possible implementation, the terminal device can perform measurements based on N CSI-RS resource sets out of M CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. The number of the N CSI-RS resource sets can be indicated by the network device, where N is a positive integer and 1 ≤ N ≤ M.

[0124] It is understood that this possible implementation method can correspond to the case where the network device is configured to report the terminal device non-periodically, the case where the network device is configured to report the terminal device periodically, or the case where the network device is configured to report the terminal device semi-persistently.

[0125] In one possible implementation, the terminal device can perform measurements based on N CSI-RS resource sets out of M CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. The identifier of each CSI-RS resource set among the N CSI-RS resource sets is indicated by the network device, where N is a positive integer and 1 ≤ N ≤ M.

[0126] It is understood that this possible implementation method can correspond to the case where the network device is configured to report the terminal device non-periodically, or it can correspond to the case where the network device is configured to report the terminal device semi-persistently.

[0127] Specifically, the network device sends measurement resource indication information to the terminal device, which instructs the terminal device to perform measurements based on N CSI-RS resource sets, i.e., to measure the interference of the N CSI-RS resource sets. Upon receiving the measurement resource indication information, the terminal device performs measurements based on the N CSI-RS resource sets.

[0128] Optionally, the measurement resource indication information may also indicate the identifier of each CSI-RS resource set among the N CSI-RS resource sets.

[0129] Optionally, if the number of NZP CSI-RS resources included in the resource configuration information for channel measurement is greater than 1, the measurement resource indication information may also indicate the identifier of the NZP CSI-RS resource corresponding to each of the N CSI-RS resource sets, for example, indicating CSI-RS resource set #2 and the corresponding NZP CSI-RS resource (A).

[0130] Optionally, if the number of NZP CSI-RS resources included in the resource configuration information for channel measurement is greater than 1, the measurement resource indication information indicates the identifier of the correspondence. For example, indicating correspondence 1 means that the terminal device is instructed to perform measurement based on NZP CSI-RS resource (A) and CSI-RS Resource Set #1. Then, the terminal device performs measurement based on NZP CSI-RS resource (A), NZP CSI-RS resource (C), and ZP CSI-RS resource (D).

[0131] The measurement resource indication information can be sent via dynamic signaling, which can be a Media Access Control-Control Element (MAC-CE) or other Layer 2 signaling. The dynamic signaling can also be Downlink Control Information (DCI).

[0132] When the number of NZP CSI-RS resources included in the resource configuration information for channel measurement is equal to 1, the measurement resource indication information can indicate at least one of the following two methods: the N CSI-RS resource sets and the identifier of each CSI-RS resource set in the N CSI-RS resource sets.

[0133] In Method 1, the N CSI-RS resource sets can be indicated using an S-bit bitmap. When a bit in the S bits is set, the terminal device is instructed to measure the CSI-RS Resource Set corresponding to that bit. The number of bits set in the S bits is the value N. Figure 7 S represents the number of CSI-RS Resource Sets included in Resource Setting 1, indicated by 4 bits. For example, "0001" indicates N=1, meaning the network device selects to activate CSI-RS Resource Set #1, instructing the terminal device to measure CSI-RS Resource Set #1. Another example, "1010" indicates N=2, meaning the network device selects to activate CSI-RS Resource Set #4 and CSI-RS Resource Set #2, instructing the terminal device to measure CSI-RS Resource Set #4 and CSI-RS Resource Set #2.

[0134] Method 2: The N CSI-RS resource sets can be accessed through... Bits are used for indication. Based on Figure 7 N represents the number of CSI-RS Resource Sets requiring interference measurement, and S represents the number of CSI-RS Resource Sets included in Resource Setting 1. This indicates rounding up to the nearest integer. The bits are used to indicate the sequence number of one of the S CSI-RS Resource Sets, as shown in the table below:

[0135] CSI-RS resource set serial number 2-bit indication 1 00 2 01 3 10 4 11

[0136] For example, 2 bits represent N=1, indicating one CSI-RS Resource Set. "11" indicates that the network device selects to activate CSI-RS Resource Set #4, instructing the terminal device to measure CSI-RS Resource Set #4. As another example, 4 bits represent N=2, indicating two CSI-RS Resource Sets. "1101" indicates that the network device selects to activate both CSI-RS Resource Set #4 and CSI-RS Resource Set #2, instructing the terminal device to measure both CSI-RS Resource Set #4 and CSI-RS Resource Set #2.

[0137] In addition to the two methods mentioned above, the network device may also use other indication methods for indication, and the specific indication method used is not limited in this embodiment of the invention. The indication method used by the network device can be informed to the terminal device in advance so that the CSI-RS resource set measured by the terminal device is the same as the CSI-RS resource set indicated by the network device.

[0138] By instructing the terminal device to perform selective measurements through the network device and conducting interference measurements based on the CSI-RS resource set, the overhead of measurement resource indication can be saved when the number of cooperating base stations increases.

[0139] Step S205: The terminal device sends the CSI measurement result to the network device;

[0140] Specifically, the terminal device sends CSI measurement results to the network device. The CSI measurement results include CSI reports, and one CSI-RS resource set corresponds to at least one CSI report.

[0141] In one possible implementation, the CSI measurement result includes M' CSI reports, meaning that M' CSI reports are reported corresponding to M CSI-RS resource sets, i.e., at least one CSI report corresponding to each CSI-RS resource set in all CSI-RS resource sets is reported. The CSI measurement result may also include the identifier of the CSI-RS resource set corresponding to each of the M' CSI reports. In this possible implementation, it is assumed that the terminal device measures M CSI-RS resource sets and reports all CSI reports by default. Here, M' is a positive integer, M ≤ M', and when one CSI report corresponds to one CSI resource set, M = M'.

[0142] It is understood that this possible implementation method can correspond to the case where the network device is configured to periodically report the terminal device, the case where the network device is configured to non-periodically report the terminal device, or the case where the network device is configured to semi-persistently report the terminal device.

[0143] In one possible implementation, the network device instructs the terminal device, via reporting instruction information, how many CSI reports to report, which CSI-RS resource sets corresponding to which CSI reports to report, or which corresponding relationships to report. The terminal device then reports according to the reporting instruction information.

[0144] The reporting instruction information can be sent via RRC signaling, and can be configured in the CSI reporting configuration information or in other RRC signaling outside of the CSI reporting configuration information. The reporting configuration information can also be sent via dynamic signaling, which can be MAC-CE or other Layer 2 signaling. The dynamic signaling can also be DCI.

[0145] Optionally, after performing measurements based on the M CSI-RS resource sets, the terminal device reports according to the reporting instruction information. The reporting instruction information instructs the terminal device to report K CSI reports, where the K CSI reports are K of the M' CSI reports corresponding to the M CSI-RS resource sets, where K is a positive integer, 1 ≤ K ≤ M'. Therefore, the CSI measurement result includes the K CSI reports.

[0146] The K CSI reports can be the first K CSI reports of the M' CSI reports arranged in a certain order, such as the first K CSI reports in order of priority, the first K CSI reports in order of the size of a certain parameter, etc.

[0147] When K=M', the network device instructs the terminal device to report M' CSI reports corresponding to the M CSI-RS resource sets. When K=1, the network device instructs the terminal device to report one of the M' CSI reports. The terminal device may report the best CSI report among the M' CSI reports, where "best" could be the maximum value of a certain parameter, such as the maximum CQI. When K=M=1, the network device instructs the terminal device to measure a CSI-RS resource set and feed back a CSI report. The terminal device reports one of the at least one CSI reports obtained from the measurement of the CSI-RS resource set. Specifically, when M'=M=1, the network device may not configure the reporting instruction information. After measuring the indicated CSI-RS resource set, the terminal device reports the CSI report corresponding to that CSI-RS resource set. Specifically, when M=1, the network device instructs the terminal device to report one or more CSI reports from at least one CSI report obtained from the measurement of the CSI-RS resource set.

[0148] The reporting instruction information can also instruct the terminal device to report the identifier of the CSI-RS resource set corresponding to each of the K CSI reports. Then the CSI measurement result can also include the identifier of the CSI-RS resource set corresponding to each of the K CSI reports, so that the network device can associate the CSI report with the CSI-RS resource set.

[0149] When the number of NZP CSI-RS resources included in the resource configuration information for channel measurement is greater than 1, the reporting indication information can also indicate the identifier of the correspondence between each CSI report in the K CSI reports reported by the terminal device.

[0150] Optionally, the network device sends the reporting instruction information to the terminal device via the dynamic signaling. After performing measurements based on the M CSI-RS resource sets, the terminal device reports according to the reporting instruction information. The reporting instruction information instructs the terminal device to report K CSI reports, where the K CSI reports are K of the M' CSI reports corresponding to the M CSI-RS resource sets, where K is a positive integer and 1 ≤ K ≤ M'. Therefore, the CSI measurement result includes the K CSI reports.

[0151] The K CSI reports can be the first K CSI reports of the M' CSI reports arranged in a certain order, such as the first K CSI reports in order of priority, the first K CSI reports in order of the size of a certain parameter, etc.

[0152] When K = M', the network device instructs the terminal device to report M' CSI reports corresponding to the M CSI-RS resource sets. When K = 1, the network device instructs the terminal device to report one of the M' CSI reports. The terminal device may report the best CSI report among the M' CSI reports, where "best" could be the maximum value of a certain parameter, such as the maximum CQI. When K = M = 1, the network device instructs the terminal device to measure a CSI-RS resource set and feed back a CSI report. The terminal device reports one of the at least one CSI reports obtained from the measurement of the CSI-RS resource set. Specifically, when M' = M = 1, the terminal device reports the CSI report corresponding to the indicated CSI-RS resource set after measurement. Specifically, when M = 1, the network device instructs the terminal device to report one or more of the at least one CSI reports obtained from the measurement of the CSI-RS resource set.

[0153] The reporting instruction information can also indicate the identifier of the CSI-RS resource set corresponding to each of the K CSI reports, that is, the network device instructs the terminal device to report which CSI reports correspond to which CSI-RS resource sets.

[0154] The reporting instruction information can also instruct the terminal device to report the identifier of the CSI-RS resource set corresponding to each of the K CSI reports. Then the CSI measurement result can also include the identifier of the CSI-RS resource set corresponding to each of the K CSI reports, so that the network device can associate the CSI report with the CSI-RS resource set.

[0155] When the number of NZP CSI-RS resources included in the resource configuration information for channel measurement is greater than 1, the reporting indication information can also indicate the identifier of the correspondence between each CSI report in the K CSI reports.

[0156] When the number of NZP CSI-RS resources included in the resource configuration information for channel measurement is greater than 1, the reporting indication information can also indicate the identifier of the correspondence between each CSI report in the K CSI reports reported by the terminal device.

[0157] Optionally, when the terminal device receives the measurement resource indication information, the network device sends the reporting indication information to the terminal device via the dynamic signaling. After performing measurements based on the N CSI-RS resource sets, the terminal device reports according to the reporting indication information. The reporting indication information instructs the terminal device to report L CSI reports, where the L CSI reports are L of the N' CSI reports corresponding to the N CSI-RS resource sets, and L and N' are positive integers, 1 ≤ L ≤ N', and N ≤ N'. Therefore, the CSI measurement result includes the L CSI reports.

[0158] The L CSI reports can be the first L of the N' CSI reports arranged in a certain order, such as the first L in order of priority, the first L in order of the size of a certain parameter, etc.

[0159] When L = N', the network device instructs the terminal device to report all CSI reports corresponding to the N CSI-RS resource sets. When L = 1, the network device instructs the terminal device to report one of the N' CSI reports. The terminal device may report the best CSI report among the N' CSI reports, where "best" could be the maximum value of a certain parameter, such as the maximum CQI. When L = N = 1, the network device instructs the terminal device to measure a CSI-RS resource set and feed back a CSI report. The terminal device reports one CSI report from at least one CSI report obtained by combining the measurement of the CSI-RS resource set with the CSI-RS resource set. Specifically, when N' = N = 1, the terminal device reports the CSI report corresponding to the indicated CSI-RS resource set after measurement. Specifically, when N = 1, the network device instructs the terminal device to report one or more CSI reports from at least one CSI report obtained by measurement based on the indicated CSI-RS resource set.

[0160] The reporting instruction information can also instruct the terminal device to report the identifier of the CSI-RS resource set corresponding to each of the L CSI reports. Then, the CSI measurement result can also include the identifier of the CSI-RS resource set corresponding to each of the L CSI reports, so that the network device can associate the CSI report with the CSI-RS resource set.

[0161] When the number of NZP CSI-RS resources included in the resource configuration information for channel measurement is greater than 1, the reporting indication information can also indicate the identifier of the correspondence between each CSI report in the K CSI reports reported by the terminal device.

[0162] In the above-mentioned optional methods, where the reporting instruction information instructs the terminal device to report a CSI report, the reporting instruction information can be adopted as follows: Bits are used for indication. Based on Figure 7 Taking N=4 as an example, 2 bits can be used for indication. For example, "00" indicates that the terminal device reports the first CSI report corresponding to CSI-RS Resource Set #1, "01" indicates that the terminal device reports the second CSI report corresponding to CSI-RS Resource Set #2, "10" indicates that the terminal device reports the third CSI report corresponding to CSI-RS Resource Set #3, and "11" indicates that the terminal device reports the fourth CSI report corresponding to CSI-RS Resource Set #4.

[0163] When the number of NZP CSI-RS resources included in the resource configuration information used for channel measurement is equal to 1, the terminal device can indicate the identifier of the CSI-RS resource set in the following two ways:

[0164] Method 1: The terminal device uses an N-bit bit-map to indicate the identifier of the CSI-RS resource set. Based on Figure 7 Suppose TRP 1 instructs the terminal device to perform measurements according to CSI-RS Resource Sets #1 through #4, i.e., N=4, and TRP 1 further instructs the terminal device to report a CSI report, i.e., L=1. Then, the terminal device reports a CSI report and sets the bit corresponding to the CSI-RS Resource Set in the 4-bit bit-map. For example, if the CSI report reported by the terminal device corresponds to CSI-RS Resource Set #3, then the terminal device can report a 4-bit bit-map "0100" simultaneously with the CSI report, indicating that the sequence number of the CSI-RS Resource Set corresponding to the CSI report is 3.

[0165] based on Figure 7Furthermore, assuming TRP 1 instructs the terminal device to perform interference measurements on CSI-RS Resource Sets #1 through #4 (N=4), and TRP 1 further instructs the terminal device to report two CSI reports (L=2), then the terminal device will report two CSI reports and set the corresponding CSI-RS Resource Set bits in the 4-bit bit-map. For example, if the two CSI reports reported by the terminal device correspond to CSI-RS Resource Set #1 and CSI-RS Resource Set #3, then the terminal device can report a 4-bit bit-map "0101" simultaneously with these two CSI reports, indicating that the corresponding CSI-RS Resource Set numbers are 1 and 3, respectively.

[0166] Method 2: The terminal device adopts The bit indicates the identifier of the CSI-RS resource set. Based on Figure 7 Suppose TRP 1 instructs the terminal device to perform interference measurements on CSI-RS Resource Sets #1 through #4, i.e., N=4, and TRP 1 further instructs the terminal device to report a CSI report, i.e., L=1. Then, the terminal device reports a CSI report and uses 2 bits to indicate the identifier of the CSI-RS Resource Set corresponding to the CSI report. For example, if the CSI report reported by the terminal device corresponds to CSI-RS Resource Set #3, then the terminal device can report 2 bits "10" (see the table in step S204) at the same time as reporting the CSI report, indicating that the sequence number of the CSI-RS Resource Set corresponding to the CSI report is 3.

[0167] based on Figure 7Furthermore, assuming TRP 1 instructs the terminal device to perform interference measurements on CSI-RS Resource Sets #1 through #4 (N=4), and TRP 1 further instructs the terminal device to report two CSI reports (L=2), then the terminal device will report two CSI reports, using 4 bits to indicate the identifier of the CSI-RS Resource Set corresponding to these two CSI reports. For example, if the two CSI reports reported by the terminal device correspond to CSI-RS Resource Set #1 and CSI-RS Resource Set #3, then the terminal device can report 4 bits "0010" simultaneously with these two CSI reports, indicating that the sequence numbers of the CSI-RS Resource Sets corresponding to these two CSI reports are 1 and 3, respectively.

[0168] In addition to the two methods mentioned above, the terminal device may also use other methods to indicate the identifier of the CSI-RS resource set. The specific method used is not limited in the embodiments of the present invention.

[0169] The terminal device reports to the CSI-RS resource set and reports according to the reporting instruction information. When the number of cooperating base stations increases, the reporting overhead can be saved.

[0170] Step S206: The network device receives the CSI measurement result sent by the terminal device;

[0171] Specifically, the network device receives the CSI measurement results sent by the terminal device and can determine a multi-base station cooperative transmission scheme, corresponding link adaptive configuration, and scheduling strategy based on the CSI measurement results.

[0172] exist Figure 4 In the illustrated embodiment, the network device configures and sends at least one CSI reporting configuration information and corresponding resource configuration information, enabling the terminal device to perform measurements based on the resource configuration information corresponding to at least one CSI reporting configuration information. With an increase in the number of cooperating base stations, only the number of configured CSI-RS resource sets needs to be increased; the number of CSI reporting configuration information or resource configuration information does not need to be increased, thus enhancing system scalability. Furthermore, multiple CSI-RS resource sets can share the same CSI-RS resources, saving downlink transmission resources and improving the sharing of measurement resources and results.

[0173] Please see Figure 9 , Figure 9This is a communication diagram illustrating another channel state information processing method provided in this embodiment of the invention. The method is described from the perspective of interaction between network devices and terminal devices, and includes, but is not limited to, the following steps:

[0174] Step S301: The network device configures CSI measurement configuration information, which includes at least one CSI reporting configuration information, resource configuration information corresponding to the at least one CSI reporting configuration information, and association indication information corresponding to the at least one CSI reporting configuration information;

[0175] Specifically, the network device configures CSI measurement setting information, which includes at least one CSI reporting configuration piece, resource configuration information corresponding to the at least one CSI reporting configuration piece, and associated indication information corresponding to the at least one CSI reporting configuration piece. One CSI reporting configuration piece corresponds to at least two resource configuration pieces. One CSI reporting configuration piece corresponds to at least two associated indication pieces. The at least one CSI reporting configuration piece, the resource configuration information corresponding to the at least one CSI reporting configuration piece, and the associated indication information corresponding to the at least one CSI reporting configuration piece can be found in [reference needed]. Figure 4 The description of this information in step S201 of the illustrated embodiment will not be repeated here.

[0176] Please see Figure 10 This is based on the embodiments of the present invention. Figure 1 Example configuration table. Figure 10 The example table shown can correspond to Figure 7 The example diagram shown differs in that, Figure 10 The example table shown categorizes CSI Reporting Settings, Resource Settings, and Link under CSI Measurement Settings.

[0177] Optionally, the network device instructs the terminal device to perform measurements based on one or more CSI resource sets via dynamic signaling. The dynamic signaling may include measurement resource indication information, the description of which can be found in [reference needed]. Figure 4 The description of it in the illustrated embodiment will not be repeated here.

[0178] Step S302: The network device sends the CSI measurement configuration information to the terminal device;

[0179] Step S303: The terminal device receives the CSI measurement configuration information sent by the network device;

[0180] Step S304: The terminal device performs measurements according to the CSI measurement configuration information;

[0181] Specifically, the terminal device performs measurements based on resource configuration information for channel measurement corresponding to the at least one CSI reporting configuration information, and performs measurements based on resource configuration information for interference measurement corresponding to the at least one CSI reporting configuration information. See [link to details]. Figure 4 The specific description of step S204 in the illustrated embodiment will not be repeated here.

[0182] Step S305: The terminal device sends the CSI measurement result to the network device;

[0183] Step S306: The network device receives the CSI measurement result sent by the terminal device;

[0184] For the specific implementation processes of steps S305 and S306, please refer to [link / reference]. Figure 4 The specific descriptions of steps S205 and S206 in the illustrated embodiment will not be repeated here.

[0185] exist Figure 9 In the illustrated embodiment, the network device configures CSI measurement configuration information so that the terminal device can perform measurements based on the CSI measurement configuration information, enabling it to reach and... Figure 4 The illustrated embodiments exhibit the same beneficial effects.

[0186] The methods of the embodiments of the present invention have been described in detail above. The apparatus provided by the embodiments of the present invention will be described below.

[0187] Please see Figure 11 , Figure 11 This is a schematic diagram of the logical structure of a network device provided in an embodiment of the present invention. The network device 301 may include a processing unit 3011 and a sending unit 3012.

[0188] Processing unit 3011 is configured to configure at least one CSI reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information; one CSI reporting configuration information corresponds to at least two resource configuration information; one of the at least two resource configuration information is used for interference measurement, including a CSI-RS resource set; one of the at least two resource configuration information is used for channel measurement, including NZP CSI-RS resources; one CSI-RS resource set corresponds to at least one CSI report;

[0189] The sending unit 3012 is used to send the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information to the terminal device.

[0190] The sending unit 3012 is further configured to send measurement resource indication information to the terminal device. The measurement resource indication information instructs the terminal device to perform measurements based on N CSI-RS resource sets. The N CSI-RS resource sets are N of M CSI-RS resource sets. The M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M and N are positive integers, and 1 ≤ N ≤ M.

[0191] The sending unit 3012 is further configured to send a reporting instruction information to the terminal device, the reporting instruction information instructing the terminal device to report L CSI reports, the L CSI reports being L of the N' CSI reports corresponding to the N CSI-RS resource sets, where L and N' are positive integers, 1≤L≤N', and N≤N'.

[0192] The sending unit 3012 is further configured to send a reporting instruction information to the terminal device, the reporting instruction information instructing the terminal device to report K CSI reports, the K CSI reports being K of the M' CSI reports corresponding to M CSI-RS resource sets, the M CSI-RS resource sets being all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information, M, M', and K being positive integers, 1≤K≤M', M≤M'.

[0193] The processing unit 3011 is further configured to configure association indication information corresponding to the at least one CSI reporting configuration information, wherein one CSI reporting configuration information corresponds to at least two association indication information; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for channel measurement; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for interference measurement;

[0194] The sending unit 3012 is further configured to send the associated indication information corresponding to the at least one CSI reporting configuration information to the terminal device.

[0195] It should be noted that the processing unit 3011 is used to execute Figure 4 In step S201 of the method embodiment shown, the sending unit 3012 is used to perform... Figure 4 Step S202 in the method embodiment shown. Network device 302 may further include a receiving unit 3013, which is not in... Figure 11As shown, the receiving unit 3013 is used to perform... Figure 4 Step S206 in the method embodiment shown.

[0196] When the processing unit 3011 is a processor, and the transmitting unit 3012 and the receiving unit 3013 are transceivers, a schematic diagram of the physical structure of the network device can be found here. Figure 12 , Figure 12 The network device 302 shown includes a processor 3021, a transceiver 3022, and a memory 3023, which are interconnected via a bus.

[0197] The memory 3023 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used for related instructions and data.

[0198] Transceiver 3022 can be a communication module or transceiver circuit used to transmit data, signaling, and other information between network devices and terminal devices. In this embodiment of the invention, transceiver 3022 is used to send configuration information and receive CSI measurement results, specifically for performing... Figure 4 Steps S202 and S206 in the method embodiment shown.

[0199] Processor 3021 may be a controller, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of this invention. Processor 3021 may also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc. In the embodiments of this invention, processor 3021 is used to configure CSI reporting configuration information, resource configuration information, association indication information, etc., specifically for executing... Figure 4 Step S201 in the method embodiment shown.

[0200] Please see Figure 13 , Figure 13 This is a schematic diagram of the logical structure of a terminal device provided in an embodiment of the present invention. The terminal device 401 may include a processing unit 4011 and a sending unit 4012.

[0201] Processing unit 4011 is configured to perform measurements based on resource configuration information corresponding to at least one CSI reporting configuration information; one CSI reporting configuration information corresponds to at least two resource configuration information; one of the at least two resource configuration information is used for interference measurement, including a Channel State Information Reference Signal (CSI-RS) resource set; one of the at least two resource configuration information is used for channel measurement, including NZP CSI-RS resources;

[0202] The sending unit 4012 is used to send CSI measurement results to the network device. The CSI measurement results include CSI reports, and one CSI-RS resource set corresponds to at least one CSI report.

[0203] The processing unit 4011 is specifically used to perform measurements based on resource configuration information for channel measurement corresponding to at least one CSI reported configuration information; and to perform measurements based on resource configuration information for interference measurement corresponding to the at least one CSI reported configuration information.

[0204] The processing unit 4011 is specifically used to perform measurements according to the resource set indicated by the measurement resource indication information sent by the network device. The measurement resource indication information instructs the terminal device to perform measurements according to N CSI-RS resource sets. The N CSI-RS resource sets are N of M CSI-RS resource sets. The M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M and N are positive integers, and 1≤N≤M.

[0205] The sending unit 4012 is specifically used to send CSI measurement results to the network device according to the reporting instruction information sent by the network device. The CSI measurement results include L CSI reports. The L CSI reports are L of the N' CSI reports corresponding to the N CSI-RS resource sets, where L and N' are positive integers, 1≤L≤N', and N≤N'.

[0206] The sending unit 4012 is specifically used to send CSI measurement results to the network device according to the reporting instruction information. The CSI measurement results include K CSI reports. The K CSI reports are K of the M' CSI reports corresponding to M CSI-RS resource sets. The M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M, M', and K are positive integers, 1≤K≤M', and M≤M'.

[0207] The sending unit 4012 is further configured to receive the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information sent by the network device.

[0208] The transmitting unit 4012 is further configured to receive association indication information corresponding to the at least one CSI reporting configuration information sent by the network device, wherein one CSI reporting configuration information corresponds to at least two association indication information; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for channel measurement; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for interference measurement.

[0209] It should be noted that the processing unit 4011 is used to execute Figure 4 In step S204 of the method embodiment shown, the sending unit 4012 is used to perform... Figure 4 Step S205 in the method embodiment shown. The terminal device 402 may further include a receiving unit 3013, which is not in... Figure 13 As shown, the receiving unit 3013 is used to perform... Figure 4 Step S203 in the method embodiment shown.

[0210] When the processing unit 4011 is a processor, and the sending unit 4012 and receiving unit 4013 are transceivers, a schematic diagram of the physical structure of the terminal device can be found here. Figure 14 , Figure 14 The terminal device 402 shown includes a processor 4021, a transceiver 4022, and a memory 4023, which are interconnected via a bus.

[0211] The memory 4023 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, and is used for related instructions and data.

[0212] Transceiver 4022 can be a communication module or transceiver circuit used to transmit data, signaling, and other information between terminal devices and network devices. In this embodiment of the invention, transceiver 4022 is used to receive configuration information and send CSI measurement results, specifically for performing... Figure 4 Steps S203 and S205 in the method embodiment shown.

[0213] Processor 4021 may be a controller, CPU, general-purpose processor, ASIC, FPGA, or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of embodiments of this invention. Processor 4021 may also be a combination implementing computational functions, such as including one or more microprocessor combinations, a combination of DSP and microprocessor, etc. In the embodiments of this invention, processor 4021 is used for measurement, specifically for executing... Figure 4 Step S204 in the method embodiment shown.

[0214] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

Claims

1. A channel state information processing method, characterized in that, include: The network device is configured with at least one Channel Status Information (CSI) reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information; One CSI reported configuration information corresponds to at least two resource configuration information; One of the at least two resource configuration information is used for interference measurement, including a Channel State Information Reference Signal (CSI-RS) resource set; one of the at least two resource configuration information is used for channel measurement, including a Non-Zero Power Channel State Information Reference Signal (NZP) CSI-RS resource; one of the CSI-RS resource sets corresponds to at least one CSI report; The network device sends at least one CSI reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information to the terminal device; The network device sends measurement resource indication information to the terminal device. The measurement resource indication information instructs the terminal device to perform measurements based on N CSI-RS resource sets. The N CSI-RS resource sets are N out of M CSI-RS resource sets. The M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M and N are positive integers, and 1 ≤ N ≤ M.

2. The method as described in claim 1, characterized in that, A CSI-RS resource set includes at least one of NZP CSI-RS resources and zero-power channel state information reference signal ZP CSI-RS resources, and a CSI-RS resource set corresponds to at least one interference measurement assumption.

3. The method as described in claim 1, characterized in that, The method further includes: The network device sends a reporting instruction to the terminal device, the reporting instruction instructing the terminal device to report L CSI reports, the L CSI reports being L of the N' CSI reports corresponding to the N CSI-RS resource sets, where L and N' are positive integers, 1≤L≤N', and N≤N'.

4. The method as described in claim 3, characterized in that, The reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports; or the reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports reported by the terminal device.

5. The method as described in claim 1 or 2, characterized in that, The method further includes: The network device sends a reporting instruction to the terminal device, the reporting instruction instructing the terminal device to report K CSI reports. The K CSI reports are K of the M' CSI reports corresponding to M CSI-RS resource sets. The M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M, M', and K are positive integers, 1≤K≤M', and M≤M'.

6. The method as described in claim 5, characterized in that, The reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the K CSI reports; or the reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the K CSI reports reported by the terminal device.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: The network device configures association indication information corresponding to the at least one CSI reporting configuration information, wherein one CSI reporting configuration information corresponds to at least two association indication information; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for channel measurement; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for interference measurement; The network device sends the associated indication information corresponding to the at least one CSI reporting configuration information to the terminal device.

8. A channel state information processing method, characterized in that, include: The terminal device performs measurements based on resource configuration information corresponding to at least one configuration information reported by CSI; One CSI reported configuration information corresponds to at least two resource configuration information; One of the at least two resource configuration information is used for interference measurement, including a Channel State Information Reference Signal (CSI-RS) resource set; the other of the at least two resource configuration information is used for channel measurement, including NZP CSI-RS resources. The terminal device sends CSI measurement results to the network device. The CSI measurement results include CSI reports, and one CSI-RS resource set corresponds to at least one CSI report. The terminal device performs measurements based on resource configuration information corresponding to at least one CSI reported configuration information, including: the terminal device performs measurements based on resource configuration information for channel measurement corresponding to at least one CSI reported configuration information; the terminal device performs measurements based on resource configuration information for interference measurement corresponding to the at least one CSI reported configuration information. The terminal device performs measurements based on the resource configuration information for interference measurement corresponding to the at least one CSI reporting configuration information, including: the terminal device performs measurements based on the resource set indicated by the measurement resource indication information sent by the network device, wherein the measurement resource indication information instructs the terminal device to perform measurements based on N CSI-RS resource sets, wherein the N CSI-RS resource sets are N of M CSI-RS resource sets, and the M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information, where M and N are positive integers, and 1≤N≤M.

9. The method as described in claim 8, characterized in that, A CSI-RS resource set includes at least one of NZP CSI-RS resources and ZP CSI-RS resources, and a CSI-RS resource set corresponds to at least one interference measurement assumption.

10. The method as described in claim 8, characterized in that, The terminal device sends CSI measurement results to the network device, including: The terminal device sends CSI measurement results to the network device according to the reporting instruction information sent by the network device. The CSI measurement results include L CSI reports. The L CSI reports are L of the N' CSI reports corresponding to the N CSI-RS resource sets, where L and N' are positive integers, 1≤L≤N', and N≤N'.

11. The method as described in claim 10, characterized in that, The reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports; or the measurement result also includes the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports.

12. The method as described in claim 8 or 9, characterized in that, The terminal device sends CSI measurement results to the network device, including: The terminal device sends CSI measurement results to the network device according to the reporting instruction information sent by the network device. The CSI measurement results include K CSI reports. The K CSI reports are K of the M' CSI reports corresponding to the M CSI-RS resource sets. The M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M, M', and K are positive integers, 1≤K≤M', and M≤M'.

13. The method as described in claim 12, characterized in that, The reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each of the K CSI reports; or the measurement result also includes the identifier of the CSI-RS resource set corresponding to each of the K CSI reports.

14. The method as described in claim 8 or 9, characterized in that, Before the terminal device performs measurements based on the resource configuration information corresponding to the configuration information reported by at least one Channel State Information (CSI), it also includes: The terminal device receives at least one CSI reporting configuration information and corresponding resource configuration information sent by the network device.

15. The method according to any one of claims 8-14, characterized in that, The method further includes: The terminal device receives association indication information corresponding to at least one CSI reporting configuration information sent by the network device, wherein one CSI reporting configuration information corresponds to at least two association indication information; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for channel measurement; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for interference measurement.

16. A network device, characterized in that, Includes processor and transceiver. The processor is configured to configure at least one Channel State Information (CSI) reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information; one CSI reporting configuration information corresponds to at least two resource configuration information. One of the at least two resource configuration information is used for interference measurement, including a Channel State Information Reference Signal (CSI-RS) resource set; one of the at least two resource configuration information is used for channel measurement, including a Non-Zero Power Channel State Information Reference Signal (NZP) CSI-RS resource; one of the CSI-RS resource sets corresponds to at least one CSI report; The transceiver is used to send the at least one CSI reporting configuration information and the resource configuration information corresponding to the at least one CSI reporting configuration information to the terminal device; The measurement resource indication information is sent to the terminal device, which instructs the terminal device to perform measurements based on N CSI-RS resource sets. The N CSI-RS resource sets are N of M CSI-RS resource sets, and the M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M and N are positive integers, and 1≤N≤M.

17. The network device as described in claim 16, characterized in that, A CSI-RS resource set includes at least one of NZPCSI-RS resources and zero-power channel state information reference signal ZP CSI-RS resources, and a CSI-RS resource set corresponds to at least one interference measurement assumption.

18. The network device as described in claim 16, characterized in that, The transceiver is also used to send a reporting instruction to the terminal device, the reporting instruction indicating that the terminal device should report L CSI reports, the L CSI reports being L of the N' CSI reports corresponding to the N CSI-RS resource sets, where L and N' are positive integers, 1≤L≤N', and N≤N'.

19. The network device as described in claim 18, characterized in that, The reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports; or the reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports reported by the terminal device.

20. The network device as described in claim 16 or 17, characterized in that, The transceiver is further configured to send a reporting instruction to the terminal device, the reporting instruction indicating that the terminal device should report K CSI reports, the K CSI reports being K of the M' CSI reports corresponding to the M CSI-RS resource sets, the M CSI-RS resource sets being all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information, M, M', and K being positive integers, 1≤K≤M', M≤M'.

21. The network device as described in claim 20, characterized in that, The reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the K CSI reports; or the reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the K CSI reports reported by the terminal device.

22. The network device according to any one of claims 16-21, characterized in that, The processor is further configured to configure association indication information corresponding to the at least one CSI reporting configuration information, wherein one CSI reporting configuration information corresponds to at least two association indication information; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for channel measurement; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for interference measurement; The transceiver is also used to send the associated indication information corresponding to the at least one CSI reporting configuration information to the terminal device.

23. A terminal device, characterized in that, Includes processor and transceiver. The processor is configured to perform measurements based on resource configuration information corresponding to at least one CSI reported configuration information; one CSI reported configuration information corresponds to at least two resource configuration information. One of the at least two resource configuration information is used for interference measurement, including a Channel State Information Reference Signal (CSI-RS) resource set; the other of the at least two resource configuration information is used for channel measurement, including NZP CSI-RS resources. The transceiver is used to send CSI measurement results to network devices. The CSI measurement results include CSI reports, and one CSI-RS resource set corresponds to at least one CSI report. The processor is specifically used to perform measurements based on resource configuration information for channel measurement corresponding to at least one CSI reporting configuration information; and to perform measurements based on resource configuration information for interference measurement corresponding to the at least one CSI reporting configuration information. The processor is further specifically configured to perform measurements based on the resource set indicated by the measurement resource indication information sent by the network device. The measurement resource indication information instructs the terminal device to perform measurements based on N CSI-RS resource sets. The N CSI-RS resource sets are N of M CSI-RS resource sets, and the M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M and N are positive integers, and 1≤N≤M.

24. The terminal device as described in claim 23, characterized in that, A CSI-RS resource set includes at least one of NZPCSI-RS resources and ZP CSI-RS resources, and a CSI-RS resource set corresponds to at least one interference measurement assumption.

25. The terminal device as described in claim 23, characterized in that, The transceiver is specifically used to send CSI measurement results to the network device according to the reporting instruction information sent by the network device. The CSI measurement results include L CSI reports. The L CSI reports are L of the N' CSI reports corresponding to the N CSI-RS resource sets, where L and N' are positive integers, 1≤L≤N', and N≤N'.

26. The terminal device as described in claim 25, characterized in that, The reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports; or the measurement result also includes the identifier of the CSI-RS resource set corresponding to each CSI report in the L CSI reports.

27. The terminal device as described in claim 23 or 24, characterized in that, The transceiver is specifically used to send CSI measurement results to the network device according to the reporting instruction information. The CSI measurement results include K CSI reports. The K CSI reports are K of the M' CSI reports corresponding to M CSI-RS resource sets. The M CSI-RS resource sets are all CSI-RS resource sets corresponding to the at least one CSI reporting configuration information. M, M', and K are positive integers, 1≤K≤M', and M≤M'.

28. The terminal device as described in claim 27, characterized in that, The reporting instruction information also indicates the identifier of the CSI-RS resource set corresponding to each of the K CSI reports; or the measurement result also includes the identifier of the CSI-RS resource set corresponding to each of the K CSI reports.

29. The terminal device as described in claim 23 or 24, characterized in that, The transceiver is also configured to receive at least one CSI reporting configuration information and resource configuration information corresponding to the at least one CSI reporting configuration information sent by the network device.

30. The terminal device according to any one of claims 23-29, characterized in that, The transceiver is further configured to receive association indication information corresponding to the at least one CSI reporting configuration information sent by the network device, wherein one CSI reporting configuration information corresponds to at least two association indication information; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for channel measurement; one of the at least two association indication information indicates an identifier of one CSI reporting configuration information and an identifier of one resource configuration information, and indicates that the resource configuration information is used for interference measurement.

31. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the channel state information processing method as described in any one of claims 1-7.

32. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the channel state information processing method as described in any one of claims 8-15.

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