Enhanced channel state information for multiple transmission / reception points

Abstract

A system and method for enhancing channel state information for multiple transmission / reception points is provided. A wireless communication device may receive report configuration information for multiple associated measurement resources, including a first measurement resource for channel measurement and a second measurement resource. The wireless communication device performs interference measurement on the second measurement resource using precoding information applied to the second measurement resource.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communications, including but not limited to systems and methods for enhancing channel state information regarding multiple transmit / receive points. Background Art

[0002] The 3rd Generation Partnership Project (3GPP), a standards organization, is currently specifying a new radio interface called 5G New Radio (5G NR) and the Next Generation Packet Core Network (NG-CN or NGC). 5G NR will have three main components: the 5G Access Network (5G-AN), the 5G Core Network (5GC), and the User Equipment (UE). To facilitate the implementation of different data services and requirements, the elements of the 5GC (also known as network functions) have been simplified, with some being software-based so that they can be adapted as needed. Summary of the Invention

[0003] The embodiments disclosed herein are directed to solving problems associated with one or more problems existing in the prior art and provide other features that will become readily apparent when reference is made to the following detailed description in conjunction with the accompanying drawings. According to various embodiments, example systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of illustration and not limitation, and it will be apparent to those of ordinary skill in the art that various modifications may be made to the disclosed embodiments that remain within the scope of the present disclosure.

[0004] At least one aspect relates to a system, method, apparatus, or computer-readable medium. A wireless communication device may receive report configuration information for multiple associated measurement resources, the multiple associated measurement resources including a first measurement resource for channel measurement and a second measurement resource. The wireless communication device performs interference measurement on the second measurement resource using precoding information applied to the second measurement resource.

[0005] In some embodiments, the precoding information may include at least one of a precoding matrix, a precoding matrix indicator, or a rank indicator. In some embodiments, the second measurement resource includes a measurement resource that can be used for channel measurement. In some embodiments, the report setting information or resource setting information configured based on the report setting information may include an association between the first measurement resource and the second measurement resource.

[0006] In some embodiments, the wireless communication device may determine the precoding information based on at least one beam state for the second measurement resource. Each of the at least one beam state may include a quasi co-location (QCL) or a spatial relationship configuration. In some embodiments, the wireless communication device may receive a signal transmission corresponding to the first or second measurement resource based on at least a first beam state for the first measurement resource and a second beam state for the second measurement resource, each beam state including a quasi co-location (QCL) or a spatial relationship configuration.

[0007] In some embodiments, the wireless communication device may report a channel state information (CSI) reference signal (RS) resource indicator corresponding to an associated measurement resource in the plurality of associated measurement resources. In some embodiments, the wireless communication device may report a number of at least one of the following: a rank indicator, a precoding matrix indicator, or channel quality information equal to the number of measurement resources in the plurality of associated measurement resources. In some embodiments, the wireless communication device may report combined channel quality information corresponding to the measurement resources in the plurality of associated measurement resources.

[0008] In some embodiments, the wireless communication device may determine that the first measurement resource and the second measurement resource are associated in response to determining that the first measurement resource and the second measurement resource are configured with the same multiple beam states. In some embodiments, the report setting information or resource setting information configured according to the report setting information may indicate that the first measurement resource is in a first measurement resource set and the second measurement resource is in a second measurement resource set, and its position corresponds to the position of the first measurement resource in the first measurement set.

[0009] In some embodiments, the report setting information indicates that the second measurement resource has the same resource index as a resource index of a third measurement resource used for channel measurement. In some embodiments, the wireless communication device may determine the precoding information of the second measurement resource based on the third measurement resource.

[0010] In some embodiments, the wireless communication device may determine to perform the interference measurement on the second measurement resource in response to determining that the first measurement resource and the second measurement resource are configured with the same multiple beam states. The first measurement resource and the second measurement resource may correspond to different resource settings.

[0011] In some embodiments, the wireless communication device may receive a first signal transmission corresponding to the first measurement resource and a second signal transmission corresponding to the second measurement resource based on a plurality of beam states configured for the first measurement resource. In some embodiments, the wireless communication device may perform interference measurement on the second measurement resource using precoding information applied to the second measurement resource in response to receiving an indication via higher layer signaling.

[0012] In some embodiments, the wireless communication device may perform interference measurement on the second measurement resource using precoding information applied to the second measurement resource according to a plurality of beam states configured for the second measurement resource. In some embodiments, the plurality of beam states configured for the second measurement resource may be the same as the beam state configured for the first measurement resource.

[0013] At least one aspect relates to a system, method, apparatus, or computer-readable medium. A wireless communication node may transmit report configuration information for a plurality of associated measurement resources to a wireless communication device, the associated measurement resources including a first measurement resource and a second measurement resource for channel measurement. The wireless communication device may be caused to perform interference measurement on the second measurement resource using precoding information applied to the second measurement resource.

[0014] In some embodiments, the precoding information may include at least one of a precoding matrix, a precoding matrix indicator, or a rank indicator. In some embodiments, the second measurement resource may include a measurement resource for channel measurement. In some embodiments, the report setting information or resource setting information configured based on the report setting information may include an association between the first measurement resource and the second measurement resource.

[0015] In some embodiments, the wireless communication device may be caused to determine the precoding information based on at least one beam state for the second measurement resource, each of the at least one beam state comprising a quasi co-location (QCL) or a spatial relationship configuration. In some embodiments, the wireless communication node may send a signal transmission corresponding to the first or second measurement resource to the wireless communication device based on at least a first beam state for the first measurement resource and a second beam state for the second measurement resource, each beam state comprising a quasi co-location (QCL) or a spatial relationship configuration.

[0016] In some embodiments, the wireless communication node may receive, from the wireless communication device, a channel state information (CSI) reference signal (RS) resource indicator corresponding to an associated measurement resource in the plurality of associated measurement resources. In some embodiments, the wireless communication node may receive, from the wireless communication device, at least one of the following: a rank indicator, a precoding matrix indicator, or channel quality information, in a number equal to the number of measurement resources in the plurality of associated measurement resources.

[0017] In some embodiments, the wireless communication node may receive, from the wireless communication device, combined channel quality information corresponding to measurement resources in the plurality of associated measurement resources. In some embodiments, the wireless communication device may determine that the first measurement resource and the second measurement resource are associated in response to determining that the first measurement resource and the second measurement resource are configured with the same plurality of beam states.

[0018] In some embodiments, the report setting information or resource setting information configured according to the report setting information may indicate that the first measurement resource is in a first measurement resource set, and the second measurement resource is in a second measurement resource set, with a position corresponding to a position of the first measurement resource in the first measurement set. In some embodiments, the report setting information may indicate that the second measurement resource has the same resource index as a resource index of a third measurement resource used for channel measurement.

[0019] In some embodiments, the wireless communication device may be caused to determine the precoding information of the second measurement resource based on the third measurement resource. In some embodiments, the wireless communication device may determine to perform the interference measurement on the second measurement resource in response to determining that the first measurement resource and the second measurement resource are configured with the same multiple beam states. The first measurement resource and the second measurement resource may correspond to different resource settings.

[0020] In some embodiments, the wireless communication node may transmit, to the wireless communication device, a first signal transmission corresponding to the first measurement resource and a second signal transmission corresponding to the second measurement resource based on a plurality of beam states configured for the first measurement resource. In some embodiments, the wireless communication device may be caused to perform interference measurement on the second measurement resource using precoding information applied to the second measurement resource in response to receiving an indication via higher layer signaling.

[0021] In some embodiments, the wireless communication device may be caused to perform interference measurement on the second measurement resource using precoding information applied to the second measurement resource according to a plurality of beam states configured for the second measurement resource. In some embodiments, the plurality of beam states configured for the second measurement resource may be the same as the beam state configured for the first measurement resource. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various example embodiments of the present solution are described in detail below with reference to the following figures and accompanying drawings. The accompanying drawings are provided for illustrative purposes only and depict only example embodiments of the present solution to facilitate the reader's understanding of the present solution. Therefore, the accompanying drawings should not be considered limiting of the breadth, scope, or applicability of the present solution. It should be noted that for clarity and ease of illustration, the accompanying drawings are not necessarily drawn to scale.

[0023] Figure 1 shows an example cellular communication network in which the techniques disclosed herein may be implemented according to an embodiment of the present disclosure;

[0024] Figure 2 shows a block diagram of example base stations and user equipment apparatus according to some embodiments of the present disclosure;

[0025] Figure 3A A block diagram illustrating an example system for multiple transmit / receive point data transmission is shown;

[0026] Figure 3B A block diagram illustrating an example system for enhancing channel state information for multiple transmission / reception points using channel state information measurements according to an embodiment of the present disclosure is shown;

[0027] Figure 4A -D is a block diagram illustrating an example resource set used in a system for enhancing channel state information about multiple transmission / reception points according to an embodiment of the present disclosure;

[0028] Figure 5 A block diagram illustrating an example system for enhancing channel state information about multiple transmission / reception points using multiple transmission configuration indicator states according to an embodiment of the present disclosure is shown;

[0029] Figure 6 A block diagram illustrating an example resource set used in a system for enhancing channel state information about multiple transmission / reception points according to an embodiment of the present disclosure; and

[0030] Figure 7 A flowchart illustrating an example method of enhancing channel state information about multiple transmission / reception points according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0031] Various example embodiments of the present solution are described below with reference to the accompanying drawings to enable one of ordinary skill in the art to make and use the present solution. It will be apparent to one of ordinary skill in the art that, after reading this disclosure, various changes or modifications may be made to the examples described herein without departing from the scope of the present solution. Therefore, the present solution is not limited to the example embodiments and applications described and illustrated herein. In addition, the specific order or hierarchy of steps in the methods disclosed herein are merely example methods. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes may be rearranged while remaining within the scope of the present solution. Therefore, one of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or actions in an example order, and unless expressly stated otherwise, the present solution is not limited to the specific order or hierarchy presented.

[0032] The following acronyms are used throughout this disclosure:

[0033]

[0034]

[0035]

[0036]

[0037] 1. Mobile communication technology and environment

[0038] Figure 1 An example wireless communication network and / or system 100 is shown in which the techniques disclosed herein may be implemented in accordance with an embodiment of the present disclosure. In the following discussion, the wireless communication network 100 may be any wireless network, such as a cellular network or a narrowband Internet of Things (NB-IoT) network, and is referred to herein as "network 100." Such an example network 100 includes a base station 102 (hereinafter "BS 102," also referred to as a wireless communication node) and a user equipment device 104 (hereinafter "UE 104," also referred to as a wireless communication device) that may communicate with each other via a communication link 110 (e.g., a wireless communication channel), and a cluster of cells 126, 130, 132, 134, 136, 138, and 140 covering a geographic area 101. Figure 1 1 , BS 102 and UE 104 are contained within the respective geographic boundaries of cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station operating over its allocated bandwidth to provide adequate radio coverage to its intended users.

[0039] For example, BS 102 can operate on an allocated channel transmission bandwidth to provide sufficient coverage to UE 104. BS 102 and UE 104 can communicate via downlink radio frames 118 and uplink radio frames 124, respectively. Each radio frame 118 / 124 can be further divided into subframes 120 / 127, which can include data symbols 122 / 128. In the present disclosure, BS 102 and UE 104 are described herein as non-limiting examples of "communication nodes," which can generally practice the methods disclosed herein. According to various embodiments of the present solution, such communication nodes can perform wireless and / or wired communications.

[0040] Figure 2 A block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to some embodiments of the present solution is shown. The system 200 may include components and elements configured to support known or conventional operating features that do not require detailed description herein. In one illustrative embodiment, as described above, the system 200 may be used in applications such as Figure 1 The wireless communication environment 100 of the present invention may be used to communicate (eg, transmit and receive) data symbols in a wireless communication environment such as the wireless communication environment 100 of the present invention.

[0041] System 200 generally includes a base station 202 (hereinafter referred to as "BS 202") and a user equipment device 204 (hereinafter referred to as "UE 204"). BS 202 includes a BS (base station) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each of which is coupled to and interconnected with each other via a data communication bus 220 as needed. UE 204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each of which is coupled to and interconnected with each other via a data communication bus 240 as needed. BS 202 communicates with UE 204 via a communication channel 250, which can be any wireless channel or other medium suitable for data transmission as described herein.

[0042] It will be understood by those skilled in the art that the system 200 may further include Figure 2Any number of modules other than the modules shown. It will be understood by those skilled in the art that the various illustrative blocks, modules, circuits, and processing logic described in conjunction with the embodiments disclosed herein can be implemented in hardware, computer-readable software, firmware, or any actual combination thereof. In order to clearly illustrate this interchangeability and compatibility of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps are generally described in terms of their functionality. Whether this functionality is implemented as hardware, firmware, or software depends on the specific application and the design constraints imposed on the entire system. Those skilled in the art who are familiar with the concepts described herein can implement this functionality in an appropriate manner for each specific application, but such implementation decisions should not be interpreted as limiting the scope of this disclosure.

[0043] According to some embodiments, the UE transceiver 230, which may be referred to herein as an "uplink" transceiver 230, includes a radio frequency (RF) transmitter and an RF receiver, each including circuitry coupled to an antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in a time-division duplex manner. Similarly, according to some embodiments, the BS transceiver 210, which may be referred to herein as a "downlink" transceiver 210, includes an RF transmitter and an RF receiver, each including circuitry coupled to an antenna 212. The downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in a time-division duplex manner. The operation of the two transceiver modules 210 and 230 may be coordinated in time such that the uplink receiver circuit is coupled to the uplink antenna 232 to receive transmissions over the wireless transmission link 250 while the downlink transmitter is coupled to the downlink antenna 212. Instead, the operation of the two transceivers 210 and 230 can be coordinated in time such that the downlink receiver coupled to the downlink antenna 212 receives transmissions over the wireless transmission link 250 at the same time as the uplink transmitter coupled to the uplink antenna 232. In some embodiments, there is tight time synchronization between changes in duplex direction, with only minimal guard times.

[0044] The UE transceiver 230 and the base station transceiver 210 are configured to communicate via a wireless data communication link 250 and to cooperate with an appropriately configured RF antenna arrangement 212 / 232 that can support a specific wireless communication protocol and modulation scheme. In some illustrative embodiments, the UE transceiver 210 and the base station transceiver 210 are configured to support industry standards such as Long Term Evolution (LTE) and the emerging 5G standard. However, it should be understood that the present disclosure is not necessarily limited in application to specific standards and related protocols. Instead, the UE transceiver 230 and the base station transceiver 210 can be configured to support alternative or additional wireless data communication protocols, including future standards or variations thereof.

[0045] According to various embodiments, for example, BS 202 may be an evolved Node B (eNB), a serving eNB, a target eNB, a femto station, or a pico station. In some embodiments, UE 204 may be embodied in various types of user equipment, such as a mobile phone, a smartphone, a personal digital assistant (PDA), a tablet computer, a laptop computer, a wearable computing device, or the like. Processor modules 214 and 236 may be implemented or realized using a general-purpose processor, content addressable memory, a digital signal processor, an application specific integrated circuit, a field programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. In this manner, the processor may be implemented as a microprocessor, a controller, a microcontroller, a state machine, or the like. The processor may also be implemented as a combination of computing devices, such as a combination of a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a digital signal processor core, or any other such configuration.

[0046] Furthermore, the steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be embodied directly in hardware, firmware, or software modules executed by processor modules 214 and 236, respectively, or any practical combination thereof. Memory modules 216 and 234 may be implemented as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 216 and 234 may be coupled to processor modules 210 and 230, respectively, such that processor modules 210 and 230 can read information from and write information to memory modules 216 and 234, respectively. Memory modules 216 and 234 may also be integrated into their respective processor modules 210 and 230. In some embodiments, memory modules 216 and 234 may each include a cache memory for storing temporary variables or other intermediate information during the execution of instructions to be executed by processor modules 210 and 230, respectively. Memory modules 216 and 234 may also include non-volatile memory for storing instructions executed by processor modules 210 and 230, respectively.

[0047] The network communication module 218 generally represents the hardware, software, firmware, processing logic and / or other components of the base station 102 that enable bidirectional communication between the base station transceiver 210 and other network components and communication nodes configured to communicate with the base station 202. For example, the network communication module 218 can be configured to support Internet or WiMAX services. In a typical deployment, the network communication module 218 provides an 802.3 Ethernet interface without limitation, so that the base station transceiver 210 can communicate with a conventional Ethernet-based computer network. In this manner, the network communication module 218 can include a physical interface for connecting to a computer network (e.g., a mobile switching center (MSC)). As used herein with respect to a specified operation or function, the terms "configured for," "configured to," and variations thereof indicate a device, component, circuit, structure, machine, signal, etc. that is physically constructed, programmed, formatted, and / or arranged to perform the specified operation or function.

[0048] The Open Systems Interconnection (OSI) model (referred to herein as the "OSI model") is a conceptual and logical arrangement that defines network communications used by systems (e.g., wireless communication devices, wireless communication nodes) that expose interconnection and communication with other systems. The model is divided into seven subcomponents or layers, each of which represents a conceptual set of services provided to the layers above and below it. The OSI model also defines logical networks and effectively describes computer packet transmission by using different layer protocols. The OSI model may also be referred to as a seven-layer OSI model or a seven-layer model. In some embodiments, the first layer may be a physical layer. In some embodiments, the second layer may be a media access control (MAC) layer. In some embodiments, the third layer may be a radio link control (RLC) layer. In some embodiments, the fourth layer may be a packet data convergence protocol (PDCP) layer. In some embodiments, the fifth layer may be a radio resource control (RRC) layer. In some embodiments, the sixth layer may be a non-access stratum (NAS) layer or an Internet Protocol (IP) layer, and the seventh layer is other layers.

[0049] 2. Systems and methods for enhancing channel state information (CSI) for multiple transmit / receive points (TRPs)

[0050] In NR Release 15, the time and frequency resources that a UE can use to report CSI are controlled by the gNB. CSI may include: channel quality indicator (CQI), precoding matrix indicator (PMI), CSI-RS resource indicator (CRI), SS / PBCH block resource indicator (SSBRI), layer indicator (LI), rank indicator (RI), and / or L1-RSRP. For CQI, PMI, CRI, SSBRI, LI, RI, and L1-RSRP, higher layers configure N ≥ 1 CSI-ReportConfig reporting settings and M ≥ 1 CSI-ResourceConfig resource settings for the UE. A CSI reporting setting is associated with up to three CSI resource settings.

[0051] For aperiodic CSI, each trigger state configured using the higher-layer parameter CSI-AperiodicTriggerState can be associated with one or more CSI-ReportConfigs. Each CSI-ReportConfig can be associated with a periodic, semi-permanent or aperiodic resource setting. When one resource setting is configured, the resource setting (given by the higher-layer parameter resourcesForChannelMeasurement) can be used for channel measurement for L1-RSRP calculation. When two resource settings are configured, the first resource setting (given by the higher-layer parameter resourcesForChannelMeasurement) can be used for channel measurement, and the second resource setting (given by the higher-layer parameter csi-IM-ResourcesForInterference or the higher-layer parameter nzp-CSI-RS-ResourcesForInterference) can be used for interference measurements performed on CSI-IM or on NZP CSI-RS. When three resource settings are configured, the first resource setting (higher layer parameter resourcesForChannelMeasurement) can be used for channel measurement, the second resource setting (given by the higher layer parameter csi-IM-ResourcesForInterference) can be used for CSI-IM based interference measurement, and the third resource setting (given by the higher layer parameter nzp-CSI-RS-ResourcesForInterference) can be used for NZP CSI-RS based interference measurement.

[0052] For semi-persistent or periodic CSI, each CSI-ReportConfig can be associated with a periodic or semi-persistent resource setting. When one resource setting is configured (given by the higher-level parameter resourcesForChannelMeasurement), this resource setting can be used for channel measurement for L1-RSRP calculation. When two resource settings are configured, the first resource setting (given by the higher-level parameter resourcesForChannelMeasurement) is used for channel measurement, and the second resource setting (given by the higher-level parameter csi-IM-ResourcesForInterference) can be used for interference measurement performed on CSI-IM.

[0053] In reference Figure 3A , shows a block diagram of a system 300 for multi-TRP data transmission as introduced in NR Release R16. As shown, two TRPs 305A and 305B transmit one PDSCH to a UE 310 at a given time. Layer 0 can be transmitted from TRP 305A via data transmission 315A, and Layer 1 and Layer 2 can be transmitted from TRP 305B via data transmission 315B. However, in the case of system 300, the CSI reporting mechanism may have some issues in supporting multi-TRP transmission.

[0054] A. Systems that use CSI measurements to enhance CSI with respect to TRP

[0055] For LI-SINR, RI, PMI, and CQI measurements, at least two types of measurements are involved: channel measurement and interference measurement. If interference measurement is performed on CSI-IM, each CSI-RS resource used for channel measurement can be resource-associated with a CSI-IM resource by sorting the CSI-RS resources and CSI-IM resources in the corresponding resource set. The number of CSI-RS resources used for channel measurement is equal to the number of CSI-IM resources.

[0056] If interference measurement is performed on NZP CSI-RS, the UE may assume that each NZP CSI-RS port configured for interference measurement corresponds to an interfering transmission layer. In addition, the UE may also assume that all interfering transmission layers on the NZP CSI-RS port used for interference measurement take into account the associated EPRE ratio. In addition, the UE may also assume that another interfering signal is on the RE of the NZP CSI-RS resource used for channel measurement, the NZP CSI-RS resource used for interference measurement, or the CSI-IM resource used for interference measurement.

[0057] RSs configured in resourcesForChannelMeasurement (e.g., CSI-RS resources) can be expressed as CMRs (channel measurement resources) for channel measurement. RSs configured in csi-IM-ResourcesForInterference (e.g., CSI-RS resources) can be expressed as CSI-IM resources. In addition, RSs configured in nzp-CSI-RS-ResourcesForInterference (e.g., NZP CSI-RS resources) can be expressed as NZP-IMRs (non-zero power interference measurement resources). Both CSI-IM and NZP-IMR can be expressed as IMRs (interference measurement resources).

[0058] Now refer to Figure 3B , a block diagram of a system 320 for enhancing CSI for multiple TRPs 305A and 305B using multiple measurements is shown. As shown, TRP 305A can transmit a data transmission 315A to UE 310 via beam 330A. TRP 305B can transmit a data transmission 315B to UE 310 via beam 330B. NZP CSI-RS resource 0 can be configured for channel measurement according to TC 325A, and NZP CSI-RS resource 1 can be configured for interference measurement according to TC 325B. Each port of CSI-RS resource 1 can correspond to an interfering transmission layer. One method of calculating the SINR for CSI-RS resource 0 in TC 325A can be to use the interference from TRP 305B. However, this method does not well account for multiple TRP transmissions because both TRPs 305A and 305B can transmit signals to UE 310.

[0059] Both NZP CSI-RS resources 0 and 1 in TCs 325A and 325B can be used for channel measurement. UE 310 can calculate and feedback CSI, including RI, PMI, or SINR for both CSI-RS resources. After receiving the reported CSI from UE 310, both TRPs 305A and 305B can transmit PDSCH precoded based on the reported PMI. PDSCH layers 1 and 2 are from TRP 305B and interfere with layer 0. PDSCH layer 0 is from TRP 305A and interferes with layers 1 and 2. Each PDSCH layer can be transmitted after applying precoding.

[0060] However, precoding cannot be applied to each port of NZP CSI-RS resource 0 in TC325A or resource 1 in TC325B, because NZP CSI-RS resources 0 and 1 are both non-precoded and used for PMI measurement. Therefore, the SINR of CSI-RS resource 0 in TC325A, which is based on the assumption that each port of CSI-RS resource 1 corresponds to an interfering transmission layer, cannot reflect the actual interference of data transmission.

[0061] For each CSI-RS reception, a QCL or spatial relation-related parameter, denoted as a TCI, can be configured. In the high frequency band, each TCI can correspond to a receive beam defined by a beam state. Beam state 330A or 330B can correspond to or refer to a TCI or a spatial relation configuration. Due to the independent TCI configurations 325A and 325B for CSI-RS resource 0 and resource 1, UE 310 can use beam state 330A and beam state 330B to receive CSI-RS resource 0 and resource 1, respectively:

[0062] For CSI-RS resource 0:

[0063] For CSI-RS resource 1:

[0064] Where bi indicates beam i; RSi indicates CSI-RS resource i; is the channel matrix between the UE and CSI-RS resource i when the UE uses receive beam j; W i is the precoding matrix used by TRP i for data transmission; I i is other interference of CSI-RS resource i. SINRi indicates the SINR of CSI-RS resource i.

[0065] To obtain the optimal precoding matrices W0 and W1, UE 310 may obtain the channel matrix For example, the best W0, W1 may result in the maximum sum of the throughput of TRP 305A and TRP 305B. The best W0, W1 may also result in the SINR b0 and SINR b1 The sum of W0 and W1 can be reported to the UE and used by TRP 305A and TRP 305B for data transmission respectively.

[0066] Upon acquisition, UE 310 may receive CSI-RS resource 0 in TC 325A based on beam state 330A and beam 330B to obtain and For SINR b0The interference portion caused by CSI-RS resource 1 in TC 325B should be calculated taking into account the precoding matrix W1. In addition, UE 310 can receive CSI-RS resource 1 in TC 325B based on beam state 330A and beam state 330B to obtain and For SINR b1 To calculate the interference portion caused by CSI-RS resource 0, the precoding matrix W0 should be considered.

[0067] To meet the above requirements, an association can be established between X1>=2 CMRs within at least one resource setting. For CSI or L1-SINR measurement, when CMR m is used for channel measurement, other CMRs associated with CMR m are used for interference measurement. In other words, CMR n associated with CMR m can be used as the IMR of CMR m. For interference measurement performed on CMR n, UE310 assumes that the precoding matrix or RI / PMI is applied to CMR n. The precoding matrix or RI / PMI calculation is based on CMR n and based on the TCI (or TCI 325A or 325B) configured, assumed, or used for CMR n. The association can be configured through higher-layer signaling (RRC or MA-CCE) or implicit signaling.

[0068] 4A , a block diagram of a resource setup 400 is shown for system 300 to enhance CSI for multiple TRPs 305A and 305B. To receive each associated CMR 410 (e.g., CMR 3 and CMR 4 of CMRs 405A-N, as shown), UE 310 obtains a quasi-co-location (QCL) type D from the TCI states 325A and 325B configured for all associated CMRs 410 (e.g., CMR 3 and CMR 4, as shown). In other words, UE 310 assumes multiple QCL types D for each associated CMR 410. UE 310 can obtain other QCL types from the TCI states configured for each CMR 410 of each associated CMR.

[0069] For reception of each associated CMR 405, UE 310 derives a QCL hypothesis from the TCI states configured for all associated CMRs 405. In other words, UE 310 assumes multiple QCL hypotheses or TCI states 325A and 325B for each associated CMR 405. In other words, UE 310 receives each associated CMR 405 based on the multiple TCI states 325A and 325B configured for all associated CMRs 405. For example, five CMRs 0-5 are configured in a resource setting or resource set 400 for channel measurement. CMR 3 and CMR 4 are associated. A TCI state is configured for each CMR by RRC signaling or activated by MA-CCE. Assume that TCI state n is configured for CMR n. UE 310 then receives CMR 3 based on TCI states 3 and 4. Furthermore, the UE receives CMR 4 based on TCI states 3 and 4. If CMR 3 is used for channel measurement, CMR 4 serves as an IMR for interference measurement, and UE 310 assumes that a precoding matrix or RI and PMI are applied to CMR 4 .

[0070] The CSI based on CMR 3 for channel measurement and some other IMRs based on CMR 4 for interference measurement can be expressed as CSI 3, which may include RI1, PMI1, and CQI1. If CMR 4 is used for channel measurement, CMR 3 serves as the IMR for interference measurement, and UE 310 assumes that the precoding matrix or RI and PMI are applied to CMR 3. The CSI based on CMR 4 for channel measurement and based on CMR 3 for interference measurement and some other IMRs can be expressed as CSI 4, which may include RI2, PMI2, and CQI2. If UE 310 reports the CRI corresponding to CMR 3, CSI 3 is reported to the network. If UE 310 reports the CRI corresponding to CMR 4, CSI 4 is reported to the network.

[0071] UE 310 may report one CRI corresponding to multiple associated CMRs. In this case, two bits may be sufficient for the CRI feedback to indicate CMR 0, CMR 1, CMR 2, and (CMR3, CMR4), respectively. If the reported CRI corresponds to (CMR3, CMR4), the reported CSI includes RI1, RI2, PMI1, PMI2, CQI1, and CQI 2. In other words, UE 310 may report one CRI corresponding to multiple associated CMRs and report multiple RIs, PMIs, and CQIs. In addition, UE 310 may report one CRI corresponding to multiple L1-SINRs or L1-RSRPs. The number of RIs, PMIs, and CQIs is equal to the number of associated CMRs, e.g. Figure 4A2 of 410. CQI 1 and CQI 2 may be combined. UE 310 may report one CRI corresponding to multiple associated CMRs and may report multiple RIs, PMIs, and combined CQIs. The number of RIs, PMIs, and CQIs is equal to the number of associated CMRs (e.g., as shown in association 410). Furthermore, UE 310 may report one CRI corresponding to multiple associated CSI-RS resources (or other RS ​​resources, such as multiple associated SSB indices) and may report one combined L1-SINR or L1-RSRP.

[0072] Now refer to Figure 4B , a block diagram illustrating a set 420 of resource configurations 425A and 425B used in system 300. The gNB may use implicit signaling to inform the UE 310 which CMRs 405 are associated. The same TCI state may be configured or activated for the associated CMRs. That is, if two CMRs are configured with the same TCI state, they are associated. Additional RRC or MA-CCE signaling is then saved. For each of the M associated CMRs 405 (in association 410), M identical TCI states 430A-E (hereinafter generally referred to as 430) are configured. For example, M=2, as shown in resource configurations 425A and 425B. In resource configuration 425B, the associated CMRs 405 are configured with the same TCI states in different orders. To receive each associated CMR 405, the UE 310 obtains a QCL assumption from the TCI state 430 configured for its own TCI state.

[0073] Now refer to Figure 4C, a block diagram illustrating a set 440 of resource settings 445A and 445B used in system 300, is shown. To establish an association of CMRs 405, two CMR resource sets or groups 450A and 450B within one or both resource settings in a CSI reporting setting are configured, activated, or indicated. CMRs 405 in the first set or group are resource-associated with CMRs 405 in the second set or group 450B. That is, the xth CMR in the first set or group is associated with the xth CMR 405 in the second set or group 450B. Note that the number of CMRs 405 in the two sets or groups 450A and 450B may not be the same. For CRI feedback, relative resource indexing within one of the two sets or groups 450A and 450B may be used. Specifically, the CRI within the set or group with the greater number of CMRs 405 is reported to the gNB. In this case, two bits are sufficient for CRI feedback to indicate (CMR 0, CMR4), (CMR 1, CMR5), CMR 2, and CMR 3, respectively. That is, UE 310 reports one CRI corresponding to multiple associated CMRs 405 and reports multiple RIs, PMIs, and CQIs. For L1-SINR measurement, UE 310 reports one CRI corresponding to multiple associated CMRs 405 and reports multiple L1-SINRs or L1-RSRPs. The number of RIs, PMIs, CQIs, L1-SINRs, or L1-RSRPs is equal to the number of associated CMRs 405. One CQI may be used. UE 310 may report one CRI corresponding to multiple associated CMRs 405 and report multiple RIs, PMIs, and combined CQIs. The number of RIs, PMIs, and CQIs is equal to the number of associated CMRs 405. For L1-SINR measurement, the UE 310 may report one CRI corresponding to multiple associated CMRs 405 and report the combined L1-SINR.

[0074] Now refer to Figure 4D , shows a block diagram of a set 460 of resource configurations 465A and 465B used in system 300. For CMR m, to establish an association 480A and 48B with another CMR n, the IMRs in IMR set 465B can be configured using the same resource index as CMR n in CMR set 465A. Interference measurement will then be based on IMR 465B because one IMR 475A or 475B is the same as the associated CMR 470A or 470B. In this case, UE 310 can assume that the precoding matrix or RI / PMI based on CMR n will be applied to the IMR used for interference measurement. As shown in the figure, CSI-RS resource 1 is a CMR, which is also the IMR corresponding to CMR 0.

[0075] B. Systems that use multiple TCI states to enhance CSI for multiple TRPs

[0076] Now refer to Figure 5 , a block diagram of a system 500 for enhancing channel state information about multiple transmission / reception points using multiple transmission configuration indicator states is shown. Compared to system 500, system 300 may rely on defining an association between two CMRs. When CMR m is used for channel measurement, other CMRs associated with CMR m may be used for interference measurement.

[0077] Another method does not rely on an association between two CMRs. In this case, a CMR and its IMR can be configured with M TCI states (the order can be the same or different), as in 505A and 505B, where M>1. For CSI or L1-SINR measurement, when a CMR m is configured (or activated by MA-CCE or indicated by DCI) with M TCI states 505A and 505B for channel measurement, the corresponding IMR n for interference measurement is also configured with the same MTCI states 505A and 505B. UE 310 then receives the CMR and IMR based on the configured, activated, or indicated M TCI states. If the channel measurement is based on CMR m, IMR n is used for interference measurement, and UE 310 assumes that the precoding matrix or RI / PMI is applied to IMR n for interference measurement. The precoding matrix or RI / PMI calculation is based on IMR n and the TCI configured / activated / indicated or assumed or used for IMR n, i.e., MTCI states 505A and 505B.

[0078] For example, M = 2. Figure 3A In comparison, CSI-RS resource 0 and resource 1 are configured as CMR and IMR, respectively. 3B. Both resources are configured with two TCI states, TCI 0 and TCI 1. UE 310 then uses two corresponding beams 510A and 510B to receive CSI-RS resource 0 and resource 1. If the reported CRI corresponds to CMR m (m=0), channel measurement is based on CMR m, IMR n (n=1) is used for interference measurement, and UE 310 applies the precoding matrix or RI / PMI to IMR n for interference measurement. The precoding matrix or RI / PMI calculation is based on IMR n and on TCI 0 and TCI 1.

[0079] Regarding CSI feedback, if the reported CRI corresponds to CMR m, the RI / PMI / CQI or L1-SINR feedback can be based on CMR m for channel measurement and / or based on IMR n for interference measurement. Specifically, the feedback CQI corresponds to:

[0080]

[0081] For CSI feedback, if the reported CRI corresponds to CMR m, multiple RI / PMI / CQI or L1-SINR feedback may be reported. For example, RI0 or PMI0 or CQI0 or L1-SINR0 may be based on CMR m for channel measurement and / or on IMR n for interference measurement. RI1 or PMI1 or CQI1 may be based on IMR n for channel measurement and / or on CMR m for interference measurement. For RI0, PMI0, CQI0 or L1-SINR0 calculations, the UE 310 assumes that the precoding matrix or RI1 / PMI1 is applied to IMR n for interference measurement. For RI1, PMI1, CQI1 or L1-SINR1 calculations, the UE 310 assumes that the precoding matrix or RI0 / PMI0 is applied to CMR m for interference measurement.

[0082] Therefore, feeding back CQI 0 corresponds to:

[0083]

[0084] In addition, feedback CQI 1 corresponds to:

[0085]

[0086] Furthermore, to save feedback overhead, if RI0+RI1<=4, CQI 0 and CQI 1 can be combined into one CQI. Therefore, UE 310 can report RI0, RI1, PMI0, PMI1, and one CQI. Similarly, L1-SINR can be reported. Note that multiple NZP-IMRs can be configured to be associated with one CMR. In this case, some NZP-IMRs can only be configured with one TCI.

[0087] CMR and IMR can be configured with the same M TCI states. Configuration signaling is too strict. In some embodiments, M TCI states can be configured for CMR m. IMR configuration does not require M TCI states. UE 310 then receives CMR and IMR based on the configured / activated / indicated M TCI states.

[0088] Typically, each NZP-IMR port configured for interference measurement corresponds to one interference transmission layer. That is, the UE does not apply the RI and PMI to the NZP-IMR used for interference measurement. However, in the above-mentioned multi-TRP transmission solution, the UE needs to consider applying the RI / PMI to the NZP-IMR. Therefore, both types of NZP-IMR can be supported.

[0089] Type 1: For NZP-IMR used for interference measurement, each NZP-IMR port corresponds to one interference transmission layer;

[0090] Type 2: For NZP-IMR for interference measurement, precoding information (eg, precoding matrix or RI / PMI) is applied to IMR n for interference measurement.

[0091] If multiple NZP-IMRs corresponding to one CMR are configured, some explicit or implicit signaling should be used to inform the UE whether the IMR is type 1 or type 2. Specifically, some explicit or implicit signaling should be used to inform the UE if precoding information (e.g., precoding matrix or RI / PMI) is applied to the IMR used for interference measurement.

[0092] Higher-layer signaling may also be used. For example, RRC signaling may be configured for IMR to inform the UE whether to apply the precoding matrix or RI / PMI to the IMR for interference measurement.

[0093] Now refer to Figure 6 , a block diagram of a set 600 of resource sets 605A and 605B used in the system 300 or 500 is shown. For type 2 NZP-IMR, the UE receives the corresponding CMR and NZP-IMR simultaneously based on all TCI states configured for the corresponding CMR and NZP-IMR. Figure 6 As shown, if resource 2 is type 2 NZP-IMR, the UE will receive resource 0 and resource 2 based on TCI 0 and TCI 1, although only one TCI is configured for CMR or IMR.

[0094] The configured TCI state can be used to implicitly indicate the IMR type. For example, if the number of TCI states configured for IMR is greater than 1, the precoding matrix or RI / PMI is applied to the IMR for interference measurement. Otherwise, each NZP-IMR port corresponds to one interfering transmission layer.

[0095] C. Using a TCI state to enhance the system CSI for multiple TRPs

[0096] In system 300, the UE may consider applying precoding to resources for interference measurement. However, whether and how precoding is applied to resources depends on the UE implementation. The UE behavior for interference measurement on IMR is different from that of NZP-IMR, where each NZP-IMR port corresponds to an interfering transmission layer for interference measurement (Type 1 IMR).

[0097] Some explicit or implicit signaling should be used to inform the UE whether each NZP-IMR port corresponds to an interfering transport layer. Higher-layer signaling can be used. The configured, activated, or indicated TCI states for the IMR can be used. For example, if the number of TCI states configured for the IMR is greater than 1, the IMR is of a new type, distinct from a Type 1 IMR. Furthermore, as a specific example, if M > 1 TCI states are configured for the IMR, and these states are the same as those configured for the corresponding CMR, the IMR is of a new type.

[0098] For the new type of NZP-IMR depicted in set 600, if only one TCI 615A is configured for a CMR 605A or an IMR 605B, the UE 310 may simultaneously receive the corresponding CMR and NZP-IMR based on all TCI states (e.g., 610A–C, configured for the corresponding CMR 605A and NZP-IMR).

[0099] In some embodiments, if M TCI states (e.g., 610A-C) are configured for CMR 605A, UE 310 may simultaneously receive CMR 605A and IMR 605B based on the M TCI states (e.g., 610A-C). In this case, the same M TCI states (e.g., 615A) may be configured for the IMR 605B type.

[0100] Regarding CSI reporting, one or more CSI sets are reported. A CSI report set includes an RI, a PMI, or a CQI. Alternatively, a CSI report set refers to an LI-SINR set. A CSI report set corresponds to one CMR. Two CSI report sets correspond to two CMRs. In some embodiments, two CMRs can be associated (for example, using associations 620A and 620B). When CMR m is used for channel measurement, other CMRs associated with CMR m are used for interference measurement.

[0101] D. Methods for Enhancing CSI Across Multiple TRPs

[0102] Figure 7 A flow chart of a method 700 for enhancing channel state information about multiple transmission / reception points is shown. The method 700 may be used in conjunction with Figures 1 to 6 Detailed Description of the Invention Implementation ...

[0103] In more detail, method 700 may include identifying report setting information (705). In order to calculate more accurate interference, a wireless communication node (e.g., an eNB or TRP 305A or 305B) may send, provide, or transmit relevant measurement report setting information to a wireless communication device (e.g., a UE 310). The report setting information may define resources (e.g., time and frequency band) to be measured by the wireless communication device for transmitting data between the wireless communication node and the wireless communication device. The relevant measurement resources may include a first measurement resource for channel measurement (e.g., CSI-RS resource 0 in TC 325A) and a second measurement resource. The second measurement resource may also be used for channel measurement (e.g., CSI-RS resource 1 in TC 325B).

[0104] In some embodiments, the report setting information or the resource setting information configured according to the report setting information may define, identify, or include an association (e.g., association 410) between the first measurement resource and the second measurement resource. The association may define a grouping or correspondence between one or more measurement resources (e.g., the first measurement resource and the second measurement resource). The wireless communication device (e.g., UE 310) may then identify, retrieve, or receive report setting information for the relevant measurement resources from the wireless communication node (e.g., eNB or TRP 305A or 305B). The report setting information or resource setting information received from the wireless communication node may indicate the association (e.g., association 410) between the first measurement resource and the second measurement resource.

[0105] In some embodiments, the report setting information or the resource setting information configured according to the report setting information may define, identify, or indicate that the first measurement resource (e.g., 405) is in a first measurement resource set (e.g., 425A) and the second measurement resource (e.g., 405) is in a second measurement resource set (e.g., 425B). The first measurement resource may be located at a position in the first measurement resource set. The second measurement resource may be located at a position in the second measurement resource set. The position of the measurement resource may indicate an index or rank within the corresponding set. The position of the second measurement resource in the second measurement resource set may correspond to the position of the first measurement resource in the first measurement resource set. In some embodiments, the report setting information or the resource setting information configured according to the report setting information may define, identify, or indicate that the second measurement resource (e.g., IMR) has the same position or (resource index) as the position of the third measurement resource (e.g., CMR 405) used for channel measurement.

[0106] Method 700 may include determining precoding information (710). By receiving the report setting information, the wireless communication device (e.g., UE 310) may determine the precoding information to be applied on the second measurement resource. The precoding information may be used by the wireless communication node in data transmission to the wireless communication device. The precoding information may include, for example, a precoding matrix, a precoding matrix indicator, or a rank indicator. The precoding matrix may define beamforming (e.g., beam state 330A or 330B) and power allocation for data transmission from the wireless communication node (e.g., eNB or TRP 305A or 305B). A precoding matrix indicator (PMI) may refer to the setting of the precoding matrix to be applied in the data transmission. A rank indicator (RI) may define control information to be reported by the wireless communication device (e.g., UE 310) to the wireless communication node (e.g., eNB or TRP 305A or 305B). In some embodiments, the wireless communication device may determine precoding information of the second measurement resource (eg, 405) based on a third measurement resource (eg, 475A or 475B in IMR 465B). The third measurement resource may have a different resource setting than the second measurement resource.

[0107] Precoding information may be determined based on at least one beam state (e.g., beam state 330A or 330B) of the second measurement resource. Each beam state 330A or 330B may include a quasi-co-location (QCL) configuration or a spatial relationship configuration, etc. The quasi-co-location configuration may indicate that beams transmitted according to the beam state (e.g., beam state 330A or 330B) are transmitted from different antenna ports having similar or identical characteristics (e.g., Doppler spread, Doppler shift, delay, delay spread, and beamforming characteristics). The spatial relationship configuration may indicate that beams transmitted according to the beam state (e.g., beam state 330A or 330B) are transmitted from different antenna ports having coherent characteristics (e.g., Doppler spread, Doppler shift, delay, delay spread, and beamforming characteristics), etc.

[0108] Upon obtaining the beam state, in some embodiments, the wireless communication node may provide, send, or transmit a signal corresponding to the first measurement resource or the second measurement resource to the wireless communication device. The first measurement resource may be transmitted according to the first beam state (e.g., beam state 330A), and the second measurement resource may be transmitted according to the second beam state (e.g., beam state 330B). Each beam state in the transmission may include a QCL configuration or a spatial relationship configuration. In some embodiments, the wireless communication device may then identify, retrieve, or receive the signal corresponding to the first measurement resource or the second measurement resource from the wireless communication device.

[0109] In some embodiments, a wireless communication node (e.g., TRP 305A) may transmit a first signal transmission corresponding to a first measurement resource to a wireless communication device (e.g., UE 310). The same (e.g., TRP 305A) or another wireless communication node (e.g., TRP 305B) may transmit a second signal transmission corresponding to a second measurement resource. The transmission of the first signal transmission or the second signal transmission may be based on the beam state configured for the first measurement resource. In some embodiments, the wireless communication device (e.g., UE 310) may receive the first signal transmission corresponding to the first measurement resource from the wireless communication node (e.g., TRP 305A). In some embodiments, the wireless communication device (e.g., UE 310) may receive the first signal transmission corresponding to the first measurement resource from the same (e.g., TRP 305A) or another wireless communication node (e.g., TRP 305B). The reception of the first signal transmission or the second signal transmission may be based on the beam state configured for the first measurement resource.

[0110] By receiving or identifying a beam state (e.g., beam state 330A or 330B), a wireless communication device (e.g., UE 310) can determine whether the first measurement resource and the second measurement resource are associated. When determining this, the wireless communication device can compare the first beam state (e.g., beam state 330A) of the first measurement source and the second beam state (e.g., beam state 330B) of the second measurement source. If the first beam state and the second beam state are determined to be different, the wireless communication device can determine that the first measurement resource and the second measurement resource are configured with different beam states. Furthermore, the wireless communication device can determine that the first measurement resource and the second measurement resource are not associated.

[0111] Conversely, when the first beam state and the second beam state are determined to be the same, the wireless communication device may determine that the first measurement resource and the second measurement resource are configured with the same beam state. Furthermore, the wireless communication device may determine that the first measurement resource and the second measurement resource are associated. In some embodiments, when the first measurement resource and the second measurement resource are determined to be configured with the same beam state, the wireless communication device (e.g., UE 310) may determine whether to perform interference measurement on the second measurement resource. The first measurement resource and the second measurement resource may correspond to different resource settings (e.g., resource settings 425A and 425B or 605A and 605B).

[0112] Method 700 may include applying precoding information (715). The wireless communication device (e.g., UE 310) may apply (e.g., multiply or combine) the precoding information to the second measurement resource (e.g., CMR or IMR). In some embodiments, the wireless communication device may apply a precoding matrix to the second measurement resource. In some embodiments, the wireless communication device may apply a precoding matrix indicator to the second measurement resource. In some embodiments, the wireless communication device may apply a rank indicator to the second measurement resource. When applying the precoding information, the wireless communication device may output a resulting resource measurement (e.g., a sum or product) for use in calculating interference.

[0113] Method 700 may include performing interference measurement (720). A wireless communication device (e.g., UE 310) may perform interference measurement (e.g., SINR) on the second measurement resource using precoding information applied to the second measurement resource. In some embodiments, the wireless communication device may perform interference measurement on the second measurement resource in response to receiving and identifying an indication via higher layer signaling. The indication of the higher layer instruction may be received from the wireless communication node. The higher layer signaling may indicate a configuration using RRC or MA-CCE for data transmission. In some embodiments, the wireless communication device may perform interference measurement on the second measurement resource based on the beam state configured for the second measurement resource (e.g., 330A or 330B). For example, the wireless communication device may use a different channel matrix based on the beam state configured for the second measurement resource. In some embodiments, the beam state used for the second measurement resource may be the same as the beam state configured for the first measurement resource.

[0114] Method 700 may include reporting channel state information (725). In some embodiments, the wireless communication device may send, transmit, or report a channel state information (CSI) reference signal (RS) resource indicator. The CSI RS resource indicator may correspond to a related measurement resource (e.g., a CMR or IMR). The CSI RS resource indicator may be sent to a wireless communication node from which report configuration information is received or identified. In some embodiments, the wireless communication device may send, transmit, or report CSI, such as CQI, PMI, SSBRI, LI, RI, or L1-RSRP. The number of CSI reported may be equal to the number of measurement resources in the related measurement resources. The CSI may be reported by the wireless communication node to the wireless communication node from which the report configuration information is received or identified. In some embodiments, the wireless communication device may send, transmit, or report combined channel quality information. The combined channel quality information may correspond to a measurement source in the related measurement resource. The combined channel quality information may be based on a combination (e.g., a sum or product) of any number of CSIs (e.g., CQI, PMI, SSBRI, LI, RI, or L1-RSRP).

[0115] Although various embodiments of the present solution have been described above, it should be understood that they are presented by way of example only and not by way of limitation. Similarly, various diagrams may depict example architectures or configurations, which are provided to enable those of ordinary skill in the art to understand the example features and functions of the present solution. However, such persons will understand that the present solution is not limited to the example architectures or configurations shown, but may be implemented using a variety of alternative architectures and configurations. In addition, those of ordinary skill in the art will understand that one or more features of an embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the above-described illustrative embodiments.

[0116] It should also be understood that any reference to an element herein using designations such as "first," "second," etc., does not generally limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or multiple instances of an element. Thus, a reference to a first and a second element does not mean that only two elements may be employed, nor does it mean that the first element must precede the second element in some manner.

[0117] Furthermore, those skilled in the art will appreciate that information and signals may be represented using any of a variety of different techniques. For example, references to data, instructions, commands, information, signals, bits, and symbols in the foregoing description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0118] Those of ordinary skill in the art will further understand that any of the various illustrative logic blocks, modules, processors, devices, circuits, methods, and functions described in conjunction with the various aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of the two), firmware, various forms of programs or design code containing instructions (referred to herein as "software" or "software modules" for convenience), or any combination of these technologies. To clearly illustrate this interchangeability of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of functionality. Whether such functionality is implemented as hardware, firmware, software, or a combination of these technologies depends on the specific application and the design constraints imposed on the overall system. A skilled person may implement the described functionality in various ways for each specific application, but such implementation decisions do not result in a departure from the scope of this disclosure.

[0119] In addition, one of ordinary skill in the art will appreciate that the various exemplary logic blocks, modules, devices, components, and circuits described herein may be implemented within or performed by an integrated circuit (IC) comprising 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 device, or any combination thereof. The logic blocks, modules, and circuits may further include an antenna and / or a transceiver to communicate with various components within a network or within a device. A general purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in combination with a DSP core, or any other suitable configuration to perform the functions described herein.

[0120] If implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium. Thus, the steps of the methods or algorithms disclosed herein may be implemented as software stored on a computer-readable medium. Computer-readable media include computer storage media and communication media, including any medium that enables a computer program or code to be transferred from one place to another. A storage medium may be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0121] As used herein, the term "module" refers to software, firmware, hardware, and any combination of these elements for performing the relevant functions described herein. Additionally, for the purposes of discussion, various modules are described as discrete modules. However, it will be apparent to one of ordinary skill in the art that two or more modules may be combined to form a single module that performs the relevant functions according to embodiments of the present solution.

[0122] In addition, in embodiments of the present solution, memories or other storage devices and communication components may be employed. It will be understood that, for clarity, the above description has described embodiments of the present solution with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements, or domains may be used without departing from the present solution. For example, functions illustrated as being performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Therefore, references to specific functional units are merely references to suitable means for providing the described functionality, rather than indicating a strict logical or physical structure or organization.

[0123] Various modifications to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of this disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the novel features and principles disclosed herein as set forth in the following claims.

Claims

1. A wireless communication method, comprising: Report setting information of a plurality of associated measurement resources is received by a wireless communication device, the plurality of associated measurement resources including a first measurement resource for channel measurement, a second measurement resource for interference measurement, and a third measurement resource for channel measurement, wherein: The third measurement resource is different from the second measurement resource; determining, by the wireless communication device, precoding information defining at least one beam state of the second measurement resource based on the third measurement resource; as well as Interference measurement is performed, by the wireless communication device, on the second measurement resource using precoding information applied to the second measurement resource. 2 . The method according to claim 1 , wherein the report setting information or the resource setting information configured according to the report setting information comprises an association between the first measurement resource and the second measurement resource.

3. The method according to claim 1, wherein Each of the at least one beam state comprises a quasi co-located QCL or spatial relationship configuration.

4. The method according to claim 1 also includes receiving, by the wireless communication device, a signal transmission corresponding to the first measurement resource or the second measurement resource based on at least the following items: a first beam state for the first measurement resource and a second beam state for the second measurement resource, each beam state including a quasi-co-positioning QCL or a spatial relationship configuration. 5 . The method according to claim 1 , further comprising reporting, by the wireless communication device, a channel state information (CSI) reference signal (RS) resource indicator corresponding to an associated measurement resource among the plurality of associated measurement resources.

6. The method of claim 1, further comprising reporting, by the wireless communication device, a number of at least one of the following equal to the number of measurement resources in the plurality of associated measurement resources: a rank indicator, a precoding matrix indicator, or channel quality information.

7. The method of claim 1, further comprising reporting, by the wireless communication device, combined channel quality information corresponding to measurement resources in the plurality of associated measurement resources.

8. The method of claim 1, further comprising determining, by the wireless communication device, that the first measurement resource and the second measurement resource are associated in response to determining that the first measurement resource and the second measurement resource are configured with the same multiple beam states.

9. The method according to claim 1, wherein the report setting information or the resource setting information configured according to the report setting information indicates that the first measurement resource is in a first measurement resource set, and the second measurement resource is in a second measurement resource set, and its position corresponds to the position of the first measurement resource in the first measurement resource set. 10 . The method according to claim 1 , wherein the report setting information indicates that the second measurement resource has the same resource index as a resource index of the third measurement resource.

11. The method according to claim 1 also includes determining, by the wireless communication device, to perform the interference measurement on the second measurement resource in response to determining that the first measurement resource and the second measurement resource are configured with the same multiple beam states, wherein the first measurement resource and the second measurement resource correspond to different resource settings.

12. The method of claim 1, further comprising receiving, by the wireless communication device, a first signal transmission corresponding to the first measurement resource and a second signal transmission corresponding to the second measurement resource according to a plurality of beam states configured for the first measurement resource.

13. The method of claim 1, comprising performing, by the wireless communication device in response to receiving an indication via higher layer signaling, interference measurement on the second measurement resource using precoding information applied to the second measurement resource.

14. The method according to claim 1, comprising performing, by the wireless communication device, interference measurement on the second measurement resource using precoding information applied to the second measurement resource according to a plurality of beam states configured for the second measurement resource. 15 . The method according to claim 14 , wherein the multiple beam states configured for the second measurement resource are the same as the beam states configured for the first measurement resource.

16. The method according to claim 1, wherein The precoding information includes at least one of a precoding matrix, a precoding matrix indicator, and a rank indicator.

17. The method according to claim 1, wherein The second measurement resources also include measurement resources used for channel measurement.

18. A wireless communication method, comprising: The wireless communication node sends report setting information of multiple associated measurement resources to the wireless communication device, where the multiple associated measurement resources include a first measurement resource for channel measurement, a second measurement resource for interference measurement, and a third measurement resource for channel measurement, wherein: The third measurement resource is different from the second measurement resource; causing the wireless communication device to determine, based on the third measurement resource, precoding information defining at least one beam state of the second measurement resource; as well as The wireless communication device is caused to perform interference measurement on the second measurement resource using precoding information applied to the second measurement resource. 19 . The method according to claim 18 , wherein the report setting information or the resource setting information configured according to the report setting information comprises an association between the first measurement resource and the second measurement resource.

20. The method according to claim 18, wherein Each of the at least one beam state comprises a quasi co-located QCL or spatial relationship configuration.

21. The method according to claim 18 also includes sending a signal transmission corresponding to the first measurement resource or the second measurement resource to the wireless communication device by the wireless communication node based on at least the following items: a first beam state for the first measurement resource and a second beam state for the second measurement resource, each beam state including a quasi-co-positioning QCL or a spatial relationship configuration.

22. The method according to claim 18, further comprising receiving, by the wireless communication node from the wireless communication device, a channel state information (CSI) reference signal (RS) resource indicator corresponding to an associated measurement resource among the plurality of associated measurement resources.

23. The method of claim 18, further comprising receiving, by the wireless communication node from the wireless communication device, a number of at least one of the following equal to the number of measurement resources in the plurality of associated measurement resources: a rank indicator, a precoding matrix indicator, or channel quality information.

24. The method of claim 18, further comprising receiving, by the wireless communication node from the wireless communication device, combined channel quality information corresponding to measurement resources in the plurality of associated measurement resources.

25. The method of claim 18, further comprising determining, by the wireless communication device, that the first measurement resource and the second measurement resource are associated in response to determining that the first measurement resource and the second measurement resource are configured with the same multiple beam states.

26. A method according to claim 18, wherein the report setting information or the resource setting information configured according to the report setting information indicates that the first measurement resource is in a first measurement resource set, and the second measurement resource is in a second measurement resource set, and its position corresponds to the position of the first measurement resource in the first measurement resource set. 27 . The method according to claim 18 , wherein the report setting information indicates that the second measurement resource has the same resource index as a resource index of the third measurement resource.

28. The method according to claim 18 also includes determining, by the wireless communication device, to perform the interference measurement on the second measurement resource in response to determining that the first measurement resource and the second measurement resource are configured with the same multiple beam states, wherein the first measurement resource and the second measurement resource correspond to different resource settings.

29. The method of claim 18, further comprising sending, by the wireless communication node, a first signal transmission corresponding to the first measurement resource and a second signal transmission corresponding to the second measurement resource to the wireless communication device based on a plurality of beam states configured for the first measurement resource.

30. The method of claim 18, comprising the wireless communication device performing interference measurement on the second measurement resource using precoding information applied to the second measurement resource in response to receiving an indication via higher layer signaling.

31. The method of claim 18, comprising causing the wireless communication device to perform interference measurement on the second measurement resource using precoding information applied to the second measurement resource according to a plurality of beam states configured for the second measurement resource.

32. The method according to claim 31, wherein the multiple beam states configured for the second measurement resource are the same as the beam states configured for the first measurement resource.

33. The method of claim 18, wherein: The precoding information includes at least one of a precoding matrix, a precoding matrix indicator, and a rank indicator.

34. The method of claim 18, wherein The second measurement resources also include measurement resources used for channel measurement.

35. A computer-readable storage medium storing instructions that, when executed by one or more processors, enable the one or more processors to perform the method according to any one of claims 1-34.

36. A wireless communication device comprising: one or more processors; as well as A memory storing executable instructions which, when executed by the one or more processors, cause the one or more processors to perform the method according to any one of claims 1-34.

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