Communication method and device, terminal equipment and network equipment

Abstract

The invention discloses a communication method and device, terminal equipment and network equipment, and relates to the technical field of communication. The method comprises: a network device sending CSI report configuration information, the CSI report configuration information being used for configuring a CSI report, and the CSI report configuration information being associated with one or more CSI-RS resources. Correspondingly, the terminal equipment acquires the CSI report configuration information. Visibly, according to the resource allocation method and device, the CSI report configuration information is associated with one or more CSI-RS resources, and resource allocation of CSI feedback / CSI report is achieved. Thus, since resource configuration is performed on CSI feedback / CSI reporting, the terminal device can perform channel measurement according to the resource configuration to obtain the channel related information of one or more beams, and then carry the channel related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method and apparatus, terminal equipment and network equipment. Background Art

[0002] Currently, the standard protocol specified by the 3rd Generation Partnership Project (3GPP) has introduced relevant research on channel state information (CSI).

[0003] In related research, the network may perform CSI-related configurations so that the terminal device may perform CSI feedback (feedback) / CSI reporting (reporting), etc. according to the CSI-related configurations.

[0004] However, there are various network scenarios, and different network scenarios may have different network configurations, network requirements or network implementations, which may cause the information included / carried / borne by the CSI report to change due to different network scenarios. Therefore, further research is needed to configure corresponding resources for CSI feedback / CSI reporting. Summary of the invention

[0005] The present application provides a communication method and apparatus, a terminal device and a network device, in the hope of performing corresponding resource configuration for CSI feedback / CSI reporting.

[0006] The first aspect is a communication method of the present application, comprising:

[0007] Acquire CSI report configuration information, where the CSI report configuration information is used to configure a CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0008] It can be seen that in the network scenario of the present application, the present application can introduce CSI report configuration information, which is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources, so that the CSI report is associated with one or more CSI-RS resources, thereby realizing resource configuration for CSI feedback / CSI reporting.

[0009] In this way, since resources are configured for CSI feedback / CSI reporting, the terminal device can perform channel measurement based on the CSI-RS resources associated with the CSI report configuration information to obtain channel-related information of one or more beams, and then carry the channel-related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

[0010] In addition, compared to the current network scenario where resources are only configured for CSI feedback / CSI reporting of a single beam under NCJT, CJT or multiple TRPs, the present application can configure resources for CSI feedback / CSI reporting of one or more beams that are not NCJT, not CJT or a single TRP, so as to improve the diversity of network scenarios.

[0011] A second aspect is a communication method of the present application, comprising:

[0012] Send CSI report configuration information, where the CSI report configuration information is used to configure a CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0013] A third aspect is a communication device of the present application, comprising:

[0014] The acquisition unit is used to acquire CSI report configuration information, where the CSI report configuration information is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0015] A fourth aspect is a communication device of the present application, comprising:

[0016] The sending unit is used to send CSI report configuration information, where the CSI report configuration information is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0017] In a fifth aspect, the steps in the method designed in the first aspect are applied to a terminal device or in a terminal device.

[0018] In a sixth aspect, the steps in the method designed in the second aspect are applied to a network device or in a network device.

[0019] The seventh aspect is a terminal device of the present application, comprising a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the first aspect above.

[0020] The eighth aspect is a network device of the present application, comprising a processor, a memory, and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the second aspect above.

[0021] The ninth aspect is a chip of the present application, comprising a processor and a communication interface, wherein the processor executes the steps in the method designed in the first aspect or the second aspect.

[0022] The tenth aspect is a chip module of the present application, comprising a transceiver component and a chip, wherein the chip comprises a processor, wherein the processor executes the steps in the method designed in the first aspect or the second aspect above.

[0023] In an eleventh aspect, a computer-readable storage medium of the present application is provided, wherein a computer program or instruction is stored therein, and when the computer program or instruction is executed, the steps in the method designed in the first aspect or the second aspect are executed. For example, the computer program or instruction is executed by a processor.

[0024] A twelfth aspect is a computer program product of the present application, comprising a computer program or an instruction, wherein when the computer program or the instruction is executed, the steps in the method designed in the first aspect or the second aspect are executed. For example, the computer program or the instruction is executed by a processor.

[0025] The beneficial effects brought about by the technical solutions of the second to twelfth aspects can refer to the technical effects brought about by the technical solution of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the architecture of a communication system according to an embodiment of the present application;

[0027] Figure 2 is a schematic diagram of a frequency domain position of a CSI-RS resource in an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of a frequency domain position of another CSI-RS resource in an embodiment of the present application;

[0029] Figure 4 It is a flow chart of a communication method according to an embodiment of the present application;

[0030] Figure 5 It is a block diagram of the functional units of a communication device according to an embodiment of the present application;

[0031] Figure 6 It is a block diagram of the functional units of another communication device according to an embodiment of the present application;

[0032] Figure 7 is a schematic diagram of the structure of a terminal device according to an embodiment of the present application;

[0033] Figure 8 It is a structural diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] It should be understood that the terms "first", "second", etc. involved in the embodiments of the present application are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, software, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products, or devices.

[0035] The "embodiment" involved in the embodiments of the present application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] In the embodiments of the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent the following three situations: A exists alone; A and B exist at the same time; B exists alone. Among them, A and B can be singular or plural.

[0037] In the embodiment of the present application, the symbol “ / ” can indicate that the previously associated objects are in an “or” relationship.

[0038] In the embodiments of the present application, "at least one item" or similar expressions refer to any combination of these items, including any combination of single items or plural items, and refer to one or more, and multiple refers to two or more. For example, at least one item of a, b, or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b, and c. Among them, each of a, b, and c can be an element or a set containing one or more elements.

[0039] In the embodiments of the present application, "equal to" can be used in conjunction with greater than, and is applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, and is applicable to the technical solution adopted when less than. When equal to is used in conjunction with greater than, it is not used in conjunction with less than; when equal to is used in conjunction with less than, it is not used in conjunction with greater than.

[0040] In the embodiments of the present application, the terms “of”, “corresponding / relevant”, “corresponding”, and “indicated” may sometimes be used interchangeably.

[0041] The words “associated with,” “corresponding to,” “corresponding to,” “is,” “of,” “for,” “belonging to,” “as,” and “regarded as” involved in the embodiments of the present application can sometimes be used interchangeably.

[0042] The words “expect,” “look forward to,” and “hope” etc. involved in the embodiments of the present application may sometimes be used interchangeably.

[0043] The "connection" in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and there is no limitation on this.

[0044] The “network” in the embodiments of the present application can be expressed as the same concept as the “system”, and the communication system is the communication network.

[0045] The following is an explanation of the relevant contents, concepts, meanings, technical issues, technical solutions and beneficial effects involved in the embodiments of the present application.

[0046] 1. Communication systems, terminal equipment and network equipment

[0047] 1. Communication system

[0048] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE-based Access to Unlicensed Spectrum (LTE-U) system on unlicensed spectrum, NR-based Access to Unlicensed Spectrum (NR-U) system on unlicensed spectrum, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wi-Fi), 6th Generation (6G) communication system or other communication systems.

[0049] It should be noted that the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, communication systems can not only support traditional communication systems, but also support device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine type communication (MTC), vehicle-to-vehicle (V2V) communication, vehicle-to-everything (V2X) communication, narrowband Internet of things (NB-IoT) communication, etc. Therefore, the technical solutions of the embodiments of the present application can also be applied to the above communication systems.

[0050] In addition, the technical solutions of the embodiments of the present application can be applied to beamforming (beamforming), carrier aggregation (CA), dual connectivity (DC) or standalone (SA) deployment scenarios, etc.

[0051] In the embodiment of the present application, the spectrum used for communication between the terminal device and the network device can be a licensed frequency band or an unlicensed frequency band, and there is no limitation on this. In addition, the unlicensed frequency band can be understood as a shared frequency band, and the licensed spectrum can be understood as a non-shared frequency band.

[0052] Since the embodiments of the present application describe various embodiments in conjunction with terminal devices and network devices, the terminal devices and network devices involved will be described in detail below.

[0053] 2. Terminal equipment

[0054] Terminal equipment can be a device with transceiver functions, and can also be called terminal, user equipment (UE), remote terminal equipment (remote UE), relay equipment (relay UE), access terminal equipment, user unit, user station, mobile station, mobile station, remote station, mobile device, user terminal equipment, intelligent terminal equipment, wireless communication equipment, user agent or user device. It should be noted that relay equipment is a terminal equipment that can provide relay forwarding services for other terminal equipment (including remote terminal equipment).

[0055] For example, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned autonomous driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0056] For another example, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR communication system, a 6G communication system), or a terminal device in a future evolved public land mobile communication network (PLMN), etc., without specific limitation.

[0057] Optionally, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can be deployed on the water (such as ships); it can be deployed in the air (such as airplanes, balloons and satellites).

[0058] Optionally, the terminal device may include a device with wireless communication function, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip and may also include other discrete devices.

[0059] Optionally, the terminal device of the embodiment of the present application can be a chip, a chip module, a device, a unit, etc., and there is no specific limitation on this.

[0060] Optionally, the terminal device may include a first compression processing module (such as an artificial intelligence (AI) module). The first compression processing module may be used to perform compression / decompression and other processing on the channel related information.

[0061] For example, the first compression processing module may be a software unit and / or hardware unit that performs the first compression processing using an AI algorithm (such as a convolutional neural network algorithm, a deep neural network algorithm, etc.). In addition, the first compression processing module may be a chip, a chip module, etc.

[0062] Optionally, the terminal device may include a second compression processing module (such as a non-AI module). The second compression processing module may be used to perform compression / decompression and other processing on the channel related information.

[0063] For example, the second compression processing module may be a software unit and / or a hardware unit that performs the second compression processing using the spatial compression vector, etc. In addition, the second compression processing module may be a chip, a chip module, etc.

[0064] 3. Network equipment

[0065] A network device may be a device with transceiver functions and may be used to communicate with a terminal device.

[0066] Optionally, the network device may be responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, data transmission and reception, etc. on the air interface side.

[0067] Optionally, the network device may include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) for providing wireless communication functions, that is, the network device may include a device in the RAN.

[0068] For example, the devices in the RAN may include an evolved node B (evolutional node B, eNB or eNodeB) in an LTE communication system, a next generation evolved node B (next generation evolved node B, ng-eNB) in an NR communication system, a next generation node B (next generation node B, gNB) in an NR communication system, a master node (MN) in a dual-connection architecture, a second node or secondary node (SN) in a dual-connection architecture, etc., without specific limitation.

[0069] Optionally, the network device may include a device in a core network (CN).

[0070] For example, the equipment in the CN may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.

[0071] Optionally, the network device may also be an access point (AP) in a WLAN, a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, and the like.

[0072] Optionally, the network device may include a device having a wireless communication function for the terminal device, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip, or may include other discrete devices.

[0073] Optionally, the network device may be a transmission and reception point (TRP).

[0074] Optionally, the network device can communicate with an Internet Protocol (IP) network, such as the Internet, a private IP network, or other data networks.

[0075] Optionally, the network device may include an independent node to implement the functions of the above-mentioned base station, or may include two or more independent nodes to implement the functions of the above-mentioned base station. For example, the network device includes a centralized unit (CU) and a distributed unit (DU), such as gNB-CU and gNB-DU. Further, in other embodiments of the present application, the network device may also include an active antenna unit (AAU). Among them, the CU implements part of the functions of the network device, and the DU implements another part of the functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU can implement some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this network deployment, high-level signaling (such as RRC signaling) can be considered to be generated by the CU, sent by the DU, or sent by the DU and the AAU. It can be understood that the network device may include at least one of the CU, DU, and AAU. In addition, the CU can be divided into a RAN device, or the CU can be divided into a core network device, without specific limitation.

[0076] Optionally, the network device may be any site in a plurality of sites that perform coherent joint transmission (CJT) with a terminal device, or other sites outside the plurality of sites, or other network devices that perform network communication with the terminal device, and no specific limitation is made to this. Among them, multi-site coherent joint transmission may be multiple-site joint coherent transmission, or different data belonging to the same physical downlink shared channel (PDSCH) may be sent from different sites to a terminal device, or multiple sites may be virtualized into one site for transmission, and names with the same meaning specified in other standards also apply to this application, that is, this application does not limit the names of these parameters. The sites in multi-site coherent joint transmission may be a remote radio head (RRH), a TRP, etc., and no specific limitation is made to this.

[0077] Optionally, the network device may be any site in the multi-site non-coherent joint transmission (NCJT) with the terminal device, or other sites outside the multi-site, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site non-coherent joint transmission may be joint non-coherent transmission of multiple sites, or different data belonging to the same PDSCH are sent from different sites to the terminal device, and the names with the same meanings specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site non-coherent joint transmission may be RRH, TRP, etc., and there is no specific limitation on this. The transmission scheme of multiple TRPs may include an M-TRP (single-downlink control information based M-TRP, S-DCI based M-TRP) transmission scheme based on a single downlink control information, and may also include an M-TRP (multiple-downlink control information based M-TRP, M-DCI based M-TRP) transmission scheme based on multiple DCIs.

[0078] S-DCI based M-TRP can be embodied as follows: one DCI can indicate multiple transmission configuration indicator (TCI) states, or one DCI can include multiple sounding reference signal resource indicator (SRS resource indicator, SRI) fields, etc. Of course, S-DCI based M-TRP can also be embodied by other concepts / parameters, which are not specifically limited.

[0079] M-DCI based M-TRP can be reflected in that the network will configure multiple control resource set pool index (controlresource set pool index, CORESET pool index, referred to as CORESETPoolIndex) values, such as CORESETPoolIndex = 0, CORESETPoolIndex = 1. Of course, M-DCI based M-TRP is reflected by other concepts / parameters, and no specific limitation is made to this.

[0080] It should be noted that the TRP of the present application is not limited to CJT or NCJT scenarios, but can also be applied to other scenarios without specific restrictions.

[0081] Optionally, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earthorbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0082] Optionally, the network device can provide services for the cell, and the terminal device in the cell can communicate with the network device through transmission resources (such as spectrum resources). The cell can be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, etc.

[0083] Optionally, the network device of the embodiment of the present application may be a chip, a chip module, a device, a unit, etc., and there is no specific limitation on this.

[0084] Optionally, the network device may include a first compression processing module (such as an AI module). The first compression processing module may be used to perform compression / decompression and other processing on channel related information.

[0085] For example, the first compression processing module may be a software unit and / or hardware unit that performs the first compression processing using an AI algorithm (such as a convolutional neural network algorithm, a deep neural network algorithm, etc.). In addition, the first compression processing module may be a chip, a chip module, etc.

[0086] Optionally, the network device may include a second compression processing module (such as a non-AI module). The second compression processing module may be used to perform compression / decompression and other processing on the channel related information.

[0087] For example, the second compression processing module may be a software unit and / or a hardware unit that performs the second compression processing using the spatial compression vector, etc. In addition, the second compression processing module may be a chip, a chip module, etc.

[0088] 4. Example

[0089] The following is an exemplary description of the communication system in an embodiment of the present application.

[0090] For example, a network architecture of a communication system in an embodiment of the present application can be found at Figure 1 .like Figure 1 As shown, the communication system 10 may include a network device 110 and a terminal device 120. The terminal device 120 may communicate with the network device 110 in a wireless manner.

[0091] Figure 1 This is merely an example of a network architecture of a communication system and does not constitute a limitation on the network architecture of the communication system in the embodiment of the present application.

[0092] For example, the communication system 10 may also include a server or other devices.

[0093] For another example, the communication system 10 may include other network devices in addition to the network device 110 .

[0094] For another example, the communication system 10 may include other terminal devices in addition to the terminal device 120 .

[0095] 2. A Resource Allocation Method

[0096] 1. Network scenarios studied in this application

[0097]

describe

[0098] There are various network scenarios, and different network scenarios may have different network configurations, network requirements or network implementations, which may cause the information included / carried / borne by the CSI report to change due to different network scenarios. This application introduces the following network scenarios:

[0099]

Network Scenario 1

[0100] In current network scenarios, the network (such as network equipment) usually configures the CSI-related configuration corresponding to a single beam to the terminal device, and the terminal device can determine the channel-related information of the single beam according to the CSI-related configuration corresponding to the single beam, and then feedback / report the channel-related information of the single beam, thereby realizing CSI feedback / CSI reporting of the single beam. In this way, the network can perform corresponding channel estimation / network configuration / network scheduling, etc. according to the channel-related information of the single beam.

[0101] It should be noted that in the present application, the network configures the CSI-related configuration corresponding to a single beam to the terminal device, which can be understood as the network configures one or more beams to the terminal device, but expects the terminal device to report the CSI corresponding to a beam; it can also be understood that the network configures one or more beams to the terminal device, but the CSI-related configuration only includes the CSI-related configuration corresponding to one beam.

[0102] Different from the current network scenario, this application introduces "Network Scenario 1", which is as follows:

[0103] In "Network Scenario 1", the network (such as a network device) configures CSI-related configurations corresponding to multiple beams to the terminal device, and the terminal device can determine the channel-related information of the multiple beams according to the CSI-related configurations corresponding to the multiple beams for reporting. The channel-related information of the multiple beams can be indicated / expected / anticipated / hoped by the network to be reported by the terminal device, or can be reported by the terminal device as recommended to the network.

[0104] It should be noted that in the present application, the network configures CSI-related configurations corresponding to multiple beams to the terminal device, which can be understood as the network configures multiple beams to the terminal device and expects the terminal to report the CSI corresponding to the multiple beams; it can also be understood as the network configures multiple beams to the terminal device, and the CSI-related configuration includes the corresponding CSI-related configurations of the multiple beams.

[0105] In addition, since the channel-related information may have a high amount of data / information, it will take up more resources to transmit, and will also increase signaling overhead, etc. Therefore, in order to reduce resource occupancy and signaling overhead, etc., this application may choose not to directly feedback the channel-related information of multiple beams, but first compress the channel information of multiple beams, and then report the compressed information or report the compressed information after processing. For ease of description, this process can be referred to as "compressed CSI reporting of multiple beams".

[0106] In addition, in "Network Scenario 1", the network (such as network equipment) may configure CSI-related configurations corresponding to multiple beams under non-coherent joint transmission (NCJT) or CJT to the terminal device, and the terminal device can report channel-related information of multiple beams according to these CSI-related configurations to achieve CSI compression reporting of multiple beams under NCJT or CJT. In other words, "Network Scenario 1" may involve CSI mechanisms for multiple beams under NCJT or CJT.

[0107]

Network Scenario 2

[0108] In the current network scenario, the network (such as network equipment) usually configures the CSI-related configuration corresponding to a single or multiple beams under NCJT or CJT to the terminal device, and the terminal device can perform CSI feedback / CSI reporting of a single or multiple beams under NCJT or CJT according to the CSI-related configuration, but does not involve CSI compression reporting of multiple beams (different from "Network Scenario 1"). In this way, the network can perform relevant channel estimation / network configuration / network scheduling under NCJT or CJT based on the channel-related information of a single or multiple beams.

[0109] Different from the current network scenario, this application introduces "Network Scenario 2", which is as follows:

[0110] In "Network Scenario 2", the network configures the CSI-related configurations corresponding to one or more beams that are not under NCJT or CJT to the terminal device, and the terminal device can report the channel-related information of one or more beams according to these CSI-related configurations, thereby realizing CSI feedback / CSI reporting of one or more beams that are not under NCJT or CJT. The channel-related information of the one or more beams can be indicated / expected / anticipated / hoped by the network to be reported to it, or can be reported by the terminal device as recommended to the network.

[0111] In addition, in order to reduce resource occupancy and signaling overhead, etc., the present application may choose not to directly feedback the channel-related information of one or more beams that are not under NCJT or CJT, but first compress the channel information of the one or more beams, and then report the compressed information or report the compressed information after processing. For ease of description, this process can be referred to as "compressed CSI reporting of one or more beams that are not under NCJT or CJT".

[0112]

Network Scenario 3

[0113] In the current network scenario, the network (such as a network device) usually configures a single or multiple beams under multiple TRPs (corresponding CSI-related configurations) to the terminal device, and the terminal device can perform CSI feedback / CSI reporting of a single or multiple beams under multiple TRPs according to the CSI-related configuration, but does not involve CSI compression reporting of multiple beams (different from "network scenario one"). In this way, the network can perform related channel estimation / network configuration / network scheduling under multiple TRPs based on the channel-related information of a single or multiple beams. At the same time, in the current network scenario, one beam corresponds to one TRP / CRI, etc. In this way, multiple beams correspond to multiple TRPs / CRIs, etc.

[0114] Different from the current network scenario, this application introduces "network scenario three", which is as follows:

[0115] In "Network Scenario Three", the network configures the CSI-related configurations corresponding to one or more beams under a single TRP to the terminal device, and the terminal device can report the channel-related information of one or more beams according to these CSI-related configurations, thereby realizing CSI feedback / CSI reporting of one or more beams under a single TRP. Among them, the channel-related information of the one or more beams can be the network's indication / expectation / anticipation / hope that the terminal device can report to it, or it can be the terminal device's recommendation to the network. At the same time, in "Network Scenario Three", the multiple beams of the present application can correspond to one or more TRP / CRI, etc.

[0116] In addition, in order to reduce resource occupancy and signaling overhead, etc., the present application may choose not to directly feedback the channel-related information of one or more beams under a single TRP, but to first compress the channel information of the one or more beams, and then report the compressed information or process the compressed information before reporting. For ease of description, this process can be referred to as "compressed CSI reporting of one or more beams under a single TRP".

[0117] To summarize, in the network scenario of the present application, the present application can introduce CSI report configuration information, which is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources, so that the CSI report is associated with one or more CSI-RS resources, thereby realizing resource configuration for CSI feedback / CSI reporting.

[0118] In this way, since resources are configured for CSI feedback / CSI reporting, the terminal device can perform channel measurement based on the CSI-RS resources associated with the CSI report configuration information to obtain channel-related information of one or more beams, and then carry the channel-related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

[0119] In addition, compared to the current network scenario that only configures resources for CSI feedback / CSI reporting of a single beam under NCJT, CJT or multiple TRPs, in the "Network Scenario Two" and "Network Scenario Three" of the present application, the present application can configure resources for CSI feedback / CSI reporting of one or more beams that are not NCJT, not CJT or a single TRP, so as to improve the diversity of network scenarios.

[0120] In combination with the above content, the technical solutions, beneficial effects, concepts, etc. involved in the embodiments of the present application are described in detail below.

[0121] 2. Specific instructions

[0122] It should be noted that the contents in the following sections may be combined and related to each other, may be parallel to each other, or may be independent of each other, and there is no specific limitation on this.

[0123] 1) One or more beams

[0124]

Beam

[0125] It should be noted that the "beam" in the present application can be regarded as a channel state information reference signal (CSI-RS), a synchronization signal block (SS / PBCH block, SSB), a CSI reference signal resource indicator index (CSI-RS Resource Indicator, CRI), a synchronization signal block resource indicator index (SS / PBCH block resource indicator, SSBRI), a demodulation reference signal (DMRS), a CSI-RS port, an antenna port, etc.; in other words, a "beam" can correspond to / associated with CSI-RS, SSB, CRI, SSBRI, DMRS, CSI-RS port, antenna port, etc., and can correspond to / associated with a combination of at least two of CSI-RS, SSB, CRI, SSBRI, DMRS, CSI-RS port, and antenna port (such as a combination of CSI-RS and SSB), and there is no specific restriction on this.

[0126] Optionally, the "beam" in this application can be understood as a channel / signal / reference signal configured by the network, such as CSI-RS, SSB, DMRS, CSI-RS port, etc.; it can also be understood as a channel / signal / reference signal configured by the network for terminal measurement; it can also be understood as a channel / signal / reference signal used for channel measurement in the CSI resource configuration associated with the CSI report configuration configured by the network. Of course, the application is not limited to the above examples for "how the beam is understood", and there can be other examples, and no specific limitation is made to this.

[0127] Optionally, the "beam" of the present application may be characterized by a channel / signal / reference signal (such as CSI-RS, SSB, DMRS, CSI-RS port, etc.), or by an index (such as a beam index), or by spatial angle information, etc. Of course, the present application is not limited to the above examples for "how the beam is specifically characterized", and there may be other examples, which are not specifically limited.

[0128] One or more beams

[0129] It should be noted that the network will configure the CSI-related configurations corresponding to multiple beams to the terminal device. Then, the terminal device will determine one or more beams from the multiple beams according to the network instructions or autonomously, and then perform CSI feedback / CSI compression reporting according to the CSI-related configurations corresponding to the one or more beams.

[0130] Optionally, the number of beams or the beam index of the one or more beams may be indicated / configured by the network.

[0131] In this way, the network instructs / expects the terminal device to report channel-related information of one or more beams to it, so that the network can perform more accurate / reasonable channel estimation / network configuration / network scheduling, etc. based on the channel-related information of these beams.

[0132] For example, the network configures 8 beams with indices 0 to 7 to the terminal device, namely beam 0 to beam 7. Then, the network instructs / expects the terminal device to perform CSI feedback / CSI compression reporting on channel-related information of 4 beams with indices 0-3.

[0133] For another example, the network configures 8 beams with indexes 0 to 7 to the terminal device, namely, beams 0 to 7. Then, the network indicates that the terminal device is expected to perform CSI feedback / CSI compression reporting on the channel related information of the beam with index 3.

[0134] For another example, the network configures 8 beams with indexes 0 to 7 to the terminal device, namely, beam 0 to beam 7. Then, the network instructs / expects the terminal device to perform CSI feedback / CSI compression reporting on channel-related information of 2 beams.

[0135] It should be noted that the "beam" here can also be represented by channel / signal / reference signal / index / spatial angle information, etc., and there is no specific limitation on this.

[0136] Optionally, the beam number or beam index of the one or more beams may be indicated by a CSI report.

[0137] This is because when the terminal device recommends to the network, since the network does not know which beams or which beams the terminal device will recommend, the terminal device needs to indicate the number or index of the recommended beams through the CSI report. In this way, the network can participate in the decision-making of channel estimation / network configuration / network scheduling, etc. based on the channel-related information of these beams recommended by the terminal device. Of course, the network may not adopt the channel-related information of these beams recommended by the terminal device.

[0138] For example, the network configures 8 beams with indexes 0 to 7 to the terminal device, namely, beams 0 to beam 7. Then, the terminal device autonomously decides to recommend to the network CSI feedback / CSI compression reporting of channel-related information of 4 beams with indexes 0-3, or the terminal device autonomously decides to recommend to the network CSI feedback / CSI compression reporting of channel-related information of beam with index 3.

[0139] It should be noted that the "beam" here can also be represented by channel / signal / reference signal / index / spatial angle information, etc., and there is no specific limitation on this.

[0140] In addition, the "one or more beams" in the present application can be regarded as one or more CSI-RS, one or more SSB, one or more CRI, one or more SSBRI, one or more DMRS, one or more CSI-RS ports, one or more antenna ports, etc., or CSI-RS / SSB / CRI / SSBRI / DMRS / CSI-RS port / antenna port, etc. corresponding to one or more beams, or a combination of at least two of the CSI-RS, SSB, CRI, SSBRI, DMRS, CSI-RS port, and antenna port corresponding to one or more beams (such as a combination of CSI-RS and SSB).

[0141] 2) CSI in the network scenario of this application

[0142]

CSI related configuration

[0143] In the network scenario of the present application, CSI-related configurations may be defined by a high-level parameter CSI-MeasConfig (CSI measurement configuration), wherein CSI-MeasConfig may indicate (include / configure / carry) the following two high-level parameters: CSI-ResourceConfig (CSI resource configuration) and CSI-ReportConfig (CSI report configuration).

[0144] In addition, since CSI-ReportConfig may indicate (include) CSI-ResourceConfigId (CSI resource configuration identifier), CSI-ResourceConfig may be associated with (correspond to / mapped to) CSI-ReportConfig through CSI-ResourceConfigId.

[0145] CSI-ReportConfig can be used to configure CSI reporting, that is, to configure CSI reporting.

[0146] CSI-ResourceConfig can be used to configure CSI measurement resources, such as CSI-RS. In addition, CSI-ResourceConfig can configure CSI Resource Set (CSI resource set), and CSI Resource Set can include the most basic CSI-RS resources (such as CSI-RS-Resource).

[0147] CSI Resource Set may indicate (include) at least one of the following: NZP-CSI-RS-ResourceSet (NZP (Non-Zero-Power)-CSI-RS resource set), CSI-IM-ResourceSet (CSI-IM (CSI Interference Measurement) resource set), and CSI-SSB-ResourceSet (synchronization signal block SSB resource set).

[0148] NZP-CSI-RS-ResourceSet can be used for channel measurement and / or interference measurement; CSI-IM-ResourceSet can be used for interference measurement; CSI-SSB-ResourceSet can be used for channel measurement.

[0149] The type of CSI-RS resources can be periodic, semi-persistent or aperiodic.

[0150] The report configuration type (reportConfigType) in CSI-ReportConfig may be used to indicate the type of CSI report, wherein the CSI report may be transmitted via a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH).

[0151] CSI-ResourceConfig and / or NZP-CSI-RS-ResourceSet can configure one or more NZP CSI-RS resource sets. Each NZP CSI-RS resource set can be composed of K (K≥1) NZP CSI-RS resources, that is, each NZP CSI-RS resource set can include at least one NZP CSI-RS resource.

[0152] Optionally, CSI measurement can be understood as measuring the downlink channel through the CSI-RS resources or SSB configured by CSI-ResourceConfig.

[0153] Optionally, CSI-related configuration may be understood as CSI report configuration and / or CSI resource configuration.

[0154] Types of CSI reports

[0155] The types of CSI reports may include: periodic CSI reports, aperiodic CSI reports, semi-persistent CSI reports carried on PUCCH, and semi-persistent CSI reports carried on PUSCH.

[0156] It should be noted that since PUCCH needs to be used to report periodic CSI, the periodic CSI report can be carried by PUCCH. Since PUSCH needs to be used to report aperiodic CSI, the aperiodic CSI report can be carried by PUSCH.

[0157] For non-periodic CSI reporting and semi-persistent CSI reporting carried on PUSCH, the network device will also configure high-level parameters TriggerState and reportTriggerSize to cooperate with the CSI request field (CSI request field) in downlink control information (downlink control information, DCI).

[0158] CSI reporting band

[0159] The report frequency configuration information (reportFreqConfiguration) in CSI-ReportConfig is used to indicate the frequency granularity of the CSI report.

[0160] The CSI reporting setting configuration may define the CSI reporting band as a subset of subbands in a bandwidth part (BWP). That is, the active BWP may be divided into multiple subbands, and a subset (i.e., part of the subbands) of the multiple subbands may be defined as the CSI reporting band.

[0161] Among them, reportFreqConfiguration can indicate:

[0162] -csi-ReportingBand is a contiguous or non-contiguous subset of the subbands in the BWP for which CSI should be reported;

[0163] - Wideband CQI reporting or subband CQI reporting can be configured by higher layer parameters (such as CQI format indicator cqi-FormatIndicator). When wideband CQI reporting is configured, one wideband CQI is reported for each codeword in the entire CSI reporting band. When subband CQI reporting is configured, one CQI per codeword is reported for each subband in the CSI reporting band.

[0164] -Wideband PMI reporting or subband PMI reporting may be configured by a higher layer parameter (e.g., PMI format indication pmi-FormatIndicator). When wideband PMI reporting is configured, one wideband PMI is reported for the entire CSI reporting band. When subband PMI reporting is configured, a single wideband indication is reported for the entire CSI reporting band, except for 2 antenna ports, and one subband indication is reported for each subband in the CSI reporting band. When subband PMI is configured with 2 antenna ports, one PMI is reported for each subband in the CSI reporting band.

[0165] 3) Channel related information

[0166] It should be noted that the channel-related information of the beam may include at least one of the channel information of the beam, the CSI information of the beam, the compression information of the beam, etc. The details are described below.

[0167] Of course, when reporting the channel-related information of the beam, the channel information of the beam and the CSI information of the beam may not be reported at the same time, and there is no specific restriction on this.

[0168] Channel Model

[0169] In a Multiple Input Multiple Output (MIMO) system, for a transmitter with a antennas and a receiver with b antennas, the channel model of the MIMO channel can be expressed as:

[0170] r=Hs+n0;

[0171] Among them, r is the received signal vector after passing through the MIMO channel; s is the transmitted signal vector of the transmitter; H is the b×a order channel matrix for the MIMO channel; n0 is the additive noise vector.

[0172] In the precoding mode, the transmitter can optimize the spatial characteristics of the transmitted signal vector s in a precoding mode according to the channel matrix H, so that the spatial distribution characteristics of the transmitted signal vector s match the channel matrix H, thereby effectively reducing the dependence on the receiver algorithm and simplifying the receiver algorithm. Through precoding, the system performance can be effectively improved.

[0173] Precoding can be performed using linear or nonlinear methods. Due to complexity and other reasons, only linear precoding is generally considered in current wireless communication systems. After precoding, the channel model of the MIMO signal can be expressed as:

[0174] r=HWs+n0;

[0175] Wherein, W is the precoding matrix.

[0176] For a multi-user multiple-input multiple-output (MU-MIMO) system, the receiver cannot perform channel estimation for signals sent to other devices, so transmitter precoding can effectively suppress multi-user interference. It can be seen that it is beneficial for the system if the transmitter knows the channel matrix and uses appropriate precoding to process it.

[0177] In addition, in the precoding method, the precoding matrix W and the channel matrix H jointly determine the equivalent channel matrix (such as HW), and the equivalent channel matrix determines the channel characteristics / channel features, etc. In addition, in some cases, the precoding matrix W can be derived from the channel matrix H, for example, the precoding matrix W can be a matrix under a certain transformation of the channel matrix H.

[0178] Optionally, the terminal device performs channel measurement / assessment / detection / estimation through a downlink reference signal to obtain a channel matrix H. The downlink reference signal may include a CSI-RS, an SSB, or a DMRS, etc.

[0179] [Processing of channel matrix H]

[0180] The singular value decomposition (SVD) of the channel matrix H can be:

[0181] H=U∑V T ;

[0182] Among them, U=[u1,u2,…,u b ] is an orthogonal matrix or unitary matrix of order b×b, that is, it satisfies U T U = I;

[0183] V=[v1,v2,…,v a ] is an a×a-order orthogonal matrix or an eigenvalue matrix, that is, it satisfies V T V = I. The column vectors in V can be called right-singular vectors of the channel matrix H;

[0184] is a diagonal matrix of order a×a, and the elements on the diagonal are the p=min(b,a) singular values ​​σ1,σ2,...,σ p , arrange them in descending order, that is, σ1>σ2>...>σ p .

[0185] In addition, the present application can be used to conjugate the transpose of the channel matrix H T Perform matrix multiplication with the channel matrix H to obtain an a×a square matrix H T H.

[0186] Through the square matrix H T H is subjected to eigendecomposition, and the eigenvalues ​​and eigenvectors obtained are as follows:

[0187] (H T H)v i =λ i v i ,i∈[1,a];

[0188] Among them, λ i Represents the square matrix H T The eigenvalue of H; v i Represents the square matrix H T The eigenvector of H.

[0189] From H=U∑V T It can be obtained that (H T H)=V∑ 2 V T .

[0190] Therefore, H T The eigenvectors of H also represent the column vectors in V above. That is, H T All eigenvectors of H can form the above V, and the square matrix H T The eigenvectors of H may be the right singular vectors of the channel matrix H.

[0191]

Channel Information

[0192] Channel information can be understood as relevant information obtained by performing channel measurement based on CSI-RS / DMRS / SSB, etc.

[0193] For example, the channel information may include at least one of the following: a channel matrix H, an equivalent channel matrix, a precoding matrix W (the precoding matrix W can be derived from the channel matrix H), a right singular vector V of the channel matrix H, a square matrix H T The eigenvector of H (the conjugate transpose of the channel matrix H T The eigenvector of the matrix obtained by multiplying the channel matrix H), at least one vector associated with the channel matrix H (such as at least one vector of the channel matrix H under a certain deformation, etc.), the square matrix H T At least one vector associated with H (such as a channel matrix H or a square matrix H T H under some deformation, etc.), time domain information of the channel, channel information in the delay-doppler domain, frequency domain characteristic information of the channel, time domain characteristic information of the channel, etc.

[0194] Of course, the channel information described in this application is not limited to the above-listed contents, and any relevant information obtained by performing channel measurement based on CSI-RS / DMRS / SSB, etc., can belong to channel information. In this way, the channel information of a beam can be the channel information obtained by performing channel measurement based on the CSI-RS / DMRS / SSB, etc. corresponding to the beam.

[0195] In addition, the channel information of the beam can be understood as the channel information corresponding to the beam, the channel information of the CSI-RS / SSB / CRI / SSBRI / DMRS / CSI-RS port / antenna port corresponding to the beam, the channel information corresponding to the CSI-RS / SSB / CRI / SSBRI / DMRS / CSI-RS port / antenna port, etc.

[0196] Optionally, the channel information of one or more beams may include the channel information of each of the one or more beams. In this way, the channel information of one or more beams is reported by including the channel information of one or more beams in the CSI report, so that the network obtains the channel information of one or more beams and performs related channel evaluation / network configuration / network scheduling, etc.

[0197] Optionally, the channel information of one or more beams may include the channel information of each beam in the one or more beams after joint processing. In this way, the channel information of one or more beams is reported by including the channel information of one or more beams in the CSI report, so that the network can obtain the channel information of one or more beams and perform relevant channel evaluation / network configuration / network scheduling, etc.

[0198]

CSI Information

[0199] The CSI information may be determined based on the channel information.

[0200] Optionally, the CSI information may include at least one of the following: layer 1 reference signal received power (layer1 reference signal received power, L1-RSRP), layer 1 signal-to-noise and interference ratio (layer1 signal-to-noise and interference ratio, L1-SINR), CSI-related parameters (CSI-related quantities), etc.

[0201] Optionally, the CSI-related parameters may include at least one of the following: CSI reference signal resource indicator index (CSI-RS Resource Indicator, CRI), synchronization signal block resource indicator index (SS / PBCH block resource indicator, SSBRI), rank indicator index (rank indicator, RI), precoding matrix indicator index (precoding matrix indicator, PMI), channel quality indicator index (channel quality indicator, CQI), layer indicator index (layer indicator, LI), capability index (CapabilityIndex), time-domain channel properties (time-domainchannel properties, TDCP), etc.

[0202] It should be noted that CRI can represent the CSI-RS resource recommended (or selected) by the terminal device, and SSBRI can represent the SSB resource recommended (or selected) by the terminal device. Among them, one CSI-RS resource can represent one beam or antenna direction, and one SSB resource can represent one beam or antenna direction.

[0203] RI can represent the number of layers recommended (or selected) by the terminal device, and the number of layers can determine which codebook. Each number of layers corresponds to a codebook, and a codebook consists of one or more codewords. For example, a codebook with 2 layers or a codebook with 1 layer.

[0204] PMI can represent the index of the codeword in the codebook recommended (or selected) by the terminal device, or quantized precoding information. One codeword corresponds to one precoding matrix. RI and PMI can represent the number of layers and precoding matrix recommended by the terminal device as a whole.

[0205] The CQI may indicate the quality of the channel of the current channel fed back by the terminal device to the network device. The terminal device needs to calculate the CQI.

[0206] In addition, the CSI information of the beam can be understood as the CSI information corresponding to the beam, the CSI information of the CSI-RS / SSB / CRI / SSBRI / DMRS / CSI-RS port / antenna port corresponding to the beam, the CSI information corresponding to the CSI-RS / SSB / CRI / SSBRI / DMRS / CSI-RS port / antenna port, etc.

[0207] Optionally, the CSI information of one or more beams may include the CSI information of each of the one or more beams. In this way, the CSI information of one or more beams is reported by including the CSI information of one or more beams in the first CSI report, so that the network obtains the CSI information of one or more beams and uses it to perform related channel assessment / network configuration / network scheduling, etc.

[0208]

First compression information

[0209] In the network scenario of the present application, the network explicitly / implicitly instructs / expects the terminal device to compress and report the channel information of one or more beams, or the terminal device recommends to the network to compress and report the channel information of one or more beams. Among them, the first compression processing is required here. For the convenience of description and distinction, the present application refers to the information that the network expects the terminal device to report or the terminal device recommends to report to the network as "first compressed information".

[0210] It can be seen that in order to reduce resource occupancy and signaling overhead, etc., the present application can first perform a first compression processing on the channel information of one or more beams to obtain the first compressed information of one or more beams, and then report the first compressed information of one or more beams.

[0211] That is, the first compressed information of the one or more beams may be information obtained after the channel-related information of the one or more beams is first compressed.

[0212] [First compression process]

[0213] It should be noted that the terminal device of the present application can use the first compression processing module to implement the first compression processing on the channel information of one or more beams.

[0214] Optionally, the first compression processing module may be a software unit and / or a hardware unit that performs the first compression processing using a compression algorithm.

[0215] In this way, since the information after the first compression processing has the characteristics of a smaller number of bits, etc., less resources are occupied and the signaling overhead is small.

[0216] Optionally, the first compression processing module may include an AI module, which may be a software unit and / or hardware unit that performs compression processing using an AI algorithm.

[0217] In this way, compared to non-AI models, since the AI ​​module has the ability to process large and complex information / data and has the ability to output results with high accuracy, etc., the present application can input channel-related information of multiple beams into the AI ​​model, and then the AI ​​model outputs the first compressed information of multiple beams, thereby not only realizing the first compression processing of channel-related information, but also ensuring that the first compressed information has a higher accuracy, etc.

[0218] It should be noted that AI technology can solve some problems that are difficult to solve with traditional modeling methods, such as some nonlinear problems, problems with overly complex parameters, etc., and establish some problem-solving models through training with a large amount of data, and provide more accurate prediction results. Among them, AI can include ML, deep learning (DL), etc., and AI can include various linear and nonlinear network models, such as linear regression, vector machine, convolutional neural network (CNN), deep neural network (DNN), etc.

[0219] With the continuous development of AI technology or ML technology and the continuous evolution of wireless communication systems, 3GPP is currently discussing the combination of AI technology or ML technology with wireless communication technology. In the combination of AI technology or ML technology with wireless communication technology, this application can introduce AI technology or ML technology at the CSI level and use AI or ML to perform CSI calculations in order to improve air interface performance and reduce air interface overhead.

[0220] Optionally, the AI ​​module can be understood as an ML model, an AI algorithm / ML algorithm, a module for operations or processing based on AI / ML, etc., without any specific limitation.

[0221] Optionally, the AI ​​module may have certain model parameters and model architecture, etc.

[0222] Optionally, the AI ​​module may include various linear and nonlinear network models, such as linear regression, vector machine, CNN, DNN, etc.

[0223] Of course, the present application may also implement the first compression processing by other methods besides AI, and there is no specific limitation on this.

[0224] [Second compression information]

[0225] In the network scenario of the present application, the network explicitly / implicitly instructs / expects the terminal device to perform CSI compression reporting on the channel information of one or more beams, or the terminal device recommends to the network to perform CSI compression reporting on the channel information of one or more beams. Among them, a second compression processing is required here. For the convenience of description and distinction, the present application refers to the information that the network instructs / expects the terminal device to report or the terminal device recommends to report to the network as "second compression information".

[0226] It should be noted that, compared with the first compression process, the second compression process may not require high computing power, and may be easier and more convenient to implement. At the same time, the information after the second compression process may also have characteristics such as a smaller number of bits, so as to further reduce resource and signaling overheads.

[0227] Optionally, when the first compression process cannot be used, the present application may select the second compression process.

[0228] For example, some factors may cause the terminal device to be unable to use the first compression processing, such as the terminal device does not have the ability to support the first compression processing, the actual network environment / network configuration / network capability / network requirements of the terminal device cannot meet / cannot support the first compression processing, the signal quality of different beams cannot meet the requirements, etc., resulting in the terminal device being unable to report the first compression information expected by the network or recommended by itself, so the terminal device can select the second compression processing.

[0229] Optionally, the first compression process and the second compression process may exist at the same time.

[0230] [Second compression processing module]

[0231] It should be noted that the terminal device of the present application can use the second compression processing module to implement the second compression processing on the channel information of one or more beams.

[0232] Optionally, the second compression processing module may be a software unit and / or a hardware unit that performs the second compression processing using a non-AI algorithm.

[0233] Optionally, the second compression processing module may include a non-AI module.

[0234] Optionally, the second compression processing module may be a software unit and / or a hardware unit that performs the second compression processing using spatial compression. Optionally, the second compression processing module may include a spatial compression vector, which may be a vector that performs compression processing using spatial characteristics or spatial attributes.

[0235] Optionally, the spatial domain compression vector may be a discrete Fourier transform (DFT) vector, or other vectors, etc., and this application does not impose any specific limitation.

[0236] For example, the spatial domain compression vector may be a vector of 4 rows and 1 column. Thus, when the channel matrix H is a matrix of 4 rows and 4 columns, the channel matrix H performs product processing on the spatial domain compression vector to obtain a vector of 4 rows and 1 column. Thus, the vector of 4 rows and 1 column has a smaller amount of information than the channel matrix H of 4 rows and 4 columns.

[0237] In this way, compared with the AI ​​model, since the AI ​​model requires the terminal device to have higher computing power, etc., the present application can select the spatial compression vector to implement compression processing.

[0238] 4) Resource allocation

[0239] In the network scenario of the present application, the present application can introduce CSI report configuration information, which is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources, so that the CSI report is associated with one or more CSI-RS resources, thereby realizing resource configuration for CSI feedback / CSI reporting.

[0240] Optionally, the CSI-RS resources associated with the CSI report configuration information may be used for channel measurement.

[0241] In this way, since resources are configured for CSI feedback / CSI reporting, the terminal device can perform channel measurement based on the CSI-RS resources associated with the CSI report configuration information to obtain channel-related information of one or more beams, and then carry the channel-related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

[0242] Optionally, the CSI-RS resource associated with the CSI report configuration information may be an NZP CSI-RS resource.

[0243] Optionally, in combination with the content in the above “CSI related configuration”, the CSI report configuration information may be CSI-ReportConfig, thereby configuring the CSI report.

[0244] The present application will now explain resource configuration from the following multiple embodiments.

[0245] Embodiment 1:

[0246]

describe

[0247] In "Example 1", the CSI report configuration information can be associated with multiple CSI-RS resources, and each of the multiple CSI-RS resources corresponds to one or more interference measurement resources, thereby configuring multiple CSI-RS resources for CSI reporting through the CSI report configuration information.

[0248] For example, taking the interaction between a network device and a terminal device as an example, the network device sends CSI report configuration information to the terminal device. Correspondingly, the terminal device receives the CSI report configuration information. In this way, since the CSI report configuration information is associated with multiple CSI-RS resources, the terminal device can perform channel measurement based on the multiple CSI-RS resources to obtain channel-related information of one or more beams, and then report the channel-related information of the one or more beams through the CSI report configured by the CSI report configuration information.

[0249] At the same time, since each CSI-RS resource corresponds to one or more interference measurement resources, the terminal device can perform interference measurement according to the interference measurement resources to obtain the channel interference situation.

[0250]

CSI-RS port

[0251] Optionally, each CSI-RS resource is a single port or multiple ports, wherein the port is a CSI-RS port.

[0252] It should be noted that the CSI-RS port can constitute / associated with / correspond to the CSI-RS resource. The CSI-RS port can be understood as the port of the CSI-RS resource; it can be understood as the port corresponding to the CSI-RS resource / channel information assumed by the CSI calculation.

[0253] The number of ports of a CSI-RS resource may be 2N1N2. That is, the total number of ports corresponding to each CSI-RS resource is 2N1N2. The coefficient 2 represents that there are two polarization directions, N1 represents the number of ports in the horizontal direction of one polarization direction, N2 represents the number of ports in the vertical direction of one polarization direction, and N1N2 represents N1 multiplied by N2.

[0254] The values ​​of N1 and N2 may be configured by parameters n1-n2 in a high-level parameter CodebookConfig (codebook configuration, or codebook configuration information element (IE)).

[0255] For example, Table 1 gives the configuration of a given number of CSI-RS ports with (N1, N2) and (O1, O2), where O1 represents the oversampling rate in the horizontal direction, and also represents the number of oversampling beams in the horizontal direction in one polarization direction; O2 represents the oversampling rate in the vertical direction, and also represents the number of oversampling beams in the vertical direction in one polarization direction.

[0256] Optionally, the number of ports of different CSI-RS resources is the same.

[0257] In this way, when the network configures multiple CSI-RS resources associated with the CSI report configuration information to the terminal device, the network can configure the same number of ports for different CSI-RS resources. Since the network only needs to configure the number of ports of these CSI-RS resources for one high-level parameter, it is easy to implement the network, reduce network complexity, and save signaling overhead.

[0258] Optionally, the number of ports of different CSI-RS resources is different.

[0259] In this way, when the network configures multiple CSI-RS resources associated with the CSI report configuration information to the terminal device, the network can configure different numbers of ports of different CSI-RS resources to be different from each other, so as to improve network flexibility.

[0260] Optionally, the port numbers of different CSI-RS resources may be the same or different.

[0261] Table 1

[0262]

[0263] [Quasi Co-Location (QCL) type D (QCL-typeD)]

[0264] Optionally, each CSI-RS resource is associated with a QCL-TypeD attribute.

[0265] It should be noted that QCL-typeD may include spatial reception parameters, etc. Among them, the spatial reception parameters may include at least one of the following: receiving angle of arrival (angle of arival, AOA), average AOA, AOA extension, transmitting angle of departure (angle of departure, AOD), average AOD, AOD extension, receiving antenna spatial correlation, transmitting antenna spatial correlation, transmitting beam, receiving beam, resource identification, etc. Of course, the present application is not limited to the above examples for "spatial reception parameters", and there may be other examples, and no specific limitation is made to this.

[0266] Since each CSI-RS resource is associated with a QCL-TypeD attribute, the multiple CSI-RS resources associated with the CSI report configuration information will be associated with one or more QCL-TypeD attributes to facilitate CSI reporting of multiple beams.

[0267] Optionally, the QCL-TypeD attributes associated with different CSI-RS resources are different.

[0268] In this way, when the network configures multiple CSI-RS resources associated with CSI report configuration information to the terminal device, the network can configure different CSI-RS resources to be associated with different QCL-TypeD attributes to facilitate CSI reporting of different beams.

[0269] Optionally, the QCL-TypeD attributes associated with different CSI-RS resources are the same.

[0270] In this way, when the network configures multiple CSI-RS resources associated with CSI report configuration information to the terminal device, the network can configure different CSI-RS resources to be associated with the same QCL-TypeD attribute to facilitate beam CSI reporting.

[0271] Optionally, the QCL-TypeD attributes associated with different CSI-RS resources may be the same or different.

[0272]

Frequency domain location of CSI-RS resources

[0273] Optionally, frequency domain density factors (density) corresponding to different CSI-RS resources are the same.

[0274] Optionally, frequency domain density factors corresponding to different CSI-RS resources are different.

[0275] Optionally, the frequency domain density factors corresponding to different CSI-RS resources may be different or the same.

[0276] It should be noted that the frequency domain density factor can be used to determine the frequency domain position of the CSI-RS resource, or can be used to indicate the number of frequency domain units of each port, or can be used to determine the number of resource elements occupied by the CSI-RS resource in one frequency domain unit or multiple frequency domain units. The frequency domain unit may be a subcarrier, a resource element (RE), a resource block (RB), or a physical resource block (PRB), and the port is a port of the CSI-RS resource.

[0277] For example, the frequency domain density factor can be used to indicate the number of REs per port in each PRB on average. In other words, the frequency domain density factor refers to how many REs are allocated in a PRB for transmitting CSI-RS signals. If the frequency domain density factor is defined as 2 REs per port per PRB, it means that 2 REs are allocated in each PRB for each port to transmit CSI-RS.

[0278] Optionally, the frequency domain density factor may be understood as a value obtained by dividing the sum of REs occupied by one or more PRBs corresponding to the CSI-RS resource by the number of ports of the CSI-RS resource.

[0279] Optionally, the frequency domain density factor may characterize the mapping of CSI-RS resources on a frequency domain unit granularity (eg, a PRB granularity).

[0280] Optionally, the value of the frequency domain density factor may be less than 1, or may be greater than or equal to 1. For example, the value of the frequency domain density factor may be 0.125, 0.25, 0.5, 1, 3, and the like.

[0281] It should be noted that when the value of the frequency domain density factor is 0.125, multiple bits (such as 3 bits) can be used to indicate information for RB level combined offset, indicating that 1 RB in every 8 RBs is occupied by CSI-RS; when the value of the frequency domain density factor is 0.25, multiple bits (such as 2 bits) can be used to indicate information for RB level combined offset, indicating that 1 RB in every 4 RBs is occupied by CSI-RS; when the value of the frequency domain density factor is 0.5, 1 bit can be used to indicate information for RB level combined offset, whether odd RBs or even RBs are occupied by CSI-RS;

[0282] The following takes the frequency domain density factor as density as an example for specific explanation:

[0283]

[0284] Among them, dot25 indicates that the value of the frequency domain density factor is 0.25; dot5 indicates that the value of the frequency domain density factor is 0.5; one indicates that the value of the frequency domain density factor is 1; three indicates that the value of the frequency domain density factor is 3; spare means spare.

[0285] Optionally, the number of ports of the CSI-RS resource may be related to the value of the frequency domain density factor.

[0286] For example, when the number of ports X=1, the allowed values ​​of the frequency domain density factor are 0.125, 0.25, 0.5, 1 and 3, etc.; when the number of ports X=2, 16, 24 and 32, the allowed values ​​of the frequency domain density factor are 0.5 and 1; when X=4, 8 and 12, the allowed value of the frequency domain density factor is 1. It should be noted that in the frequency domain positions of multiple CSI-RS resources configured by the network through CSI report configuration information, these CSI-RS resources will each occupy a certain number of frequency domain units in the frequency domain.

[0287] In order to ensure that the frequency domain units occupied by these CSI-RS resources have the same frequency domain density, the network can configure these CSI-RS resources to correspond to the same frequency domain density factor. In this way, the network only needs one frequency domain density factor to configure the frequency domain positions of these CSI-RS resources, which is conducive to saving signaling overhead.

[0288] For example, taking the frequency domain unit as RE, the network configures three CSI-RS resources through CSI report configuration information, namely the first CSI-RS resource, the second CSI-RS resource and the third CSI-RS resource, and the network configures the frequency domain density factor corresponding to these three CSI-RS resources to be 3. Figure 2 As shown in the figure, when the frequency domain starting position of the first CSI resource is RE0, since the frequency domain density factor corresponding to the first CSI-RS resource is 3, the frequency domain positions of the first CSI resource are RE0, RE3, RE6, etc. When the frequency domain starting position of the second CSI resource is RE1, since the frequency domain density factor corresponding to the second CSI-RS resource is 3, the frequency domain positions of the second CSI resource are RE1, RE4, RE7, etc. When the frequency domain starting position of the third CSI resource is RE2, since the frequency domain density factor corresponding to the third CSI-RS resource is 3, the frequency domain positions of the third CSI resource are RE2, RE5, RE8, etc.

[0289] Optionally, frequency domain offsets corresponding to different CSI-RS resources are different.

[0290] It should be noted that the frequency domain offset can be used to determine the frequency domain position of the CSI-RS resource, or can represent the offset of the frequency domain starting position of the CSI-RS resource, or can represent the offset of the frequency domain unit granularity of the frequency domain starting position of the CSI-RS resource.

[0291] In this way, since the frequency domain offset can represent the offset of the frequency domain starting position of the CSI-RS resource, and different CSI-RS resources correspond to different frequency domain offsets, it is beneficial to ensure that different CSI-RS resources have different frequency domain starting positions, which is not only beneficial to determine the frequency domain positions of these CSI-RS resources, but also beneficial to avoid overlapping of different CSI-RS resources in the frequency domain.

[0292] For example, in Figure 2 In the frequency domain offset, the frequency domain offset represents the offset between the frequency domain starting position of the CSI resource and RE0, and the offset is in units of RE. Since the frequency domain offset corresponding to the first CSI resource configured by the network is 0, the frequency domain starting position of the first CSI resource is RE0. Since the frequency domain offset corresponding to the second CSI resource configured by the network is 1, the frequency domain starting position of the second CSI resource is RE1. Since the frequency domain offset corresponding to the third CSI resource configured by the network is 2, the frequency domain starting position of the third CSI resource is RE2.

[0293]

CSI resource configuration information

[0294] Optionally, the CSI report configuration information is associated with CSI resource configuration information, where the CSI resource configuration information is used to configure one or more CSI-RS resources.

[0295] For example, taking the CSI report configuration information as CSI-ReportConfig and the CSI resource configuration information as CSI-ResourceConfig as an example, since CSI-ReportConfig indicates / includes CSI-ResourceConfigId, CSI-ReportConfig is associated with CSI-ResourceConfig through CSI-ResourceConfigId.

[0296] In this way, since the CSI resource configuration information is used to configure the CSI-RS resources, the CSI report configuration information can be associated with multiple CSI-RS resources by associating the CSI resource configuration information with the CSI report configuration information.

[0297] Optionally, the CSI report configuration information may indicate / include one or more CSI-ResourceConfigIds (CSI-RS resource configuration identifiers), which may be used to identify the CSI resource configuration information. Thus, through the CSI-ResourceConfigId, the CSI report configuration information may be associated with the CSI resource configuration information, thereby realizing that the CSI report configuration information is associated with multiple CSI-RS resources.

[0298]

Simulation beam information

[0299] Optionally, the CSI report configuration information and / or CSI resource configuration information associated with the CSI report configuration information includes at least one of the following:

[0300] ◆Information used to indicate the simulated beam information corresponding to the port of each CSI-RS resource;

[0301] It should be noted that the network will configure the simulated beam information corresponding to the port of the CSI-RS resource to the terminal device so that the terminal can determine the channel information of the beam based on the simulated beam information corresponding to the port of the CSI-RS resource.

[0302] Therefore, in "Example 1", in addition to associating multiple CSI-RSs through CSI report configuration information, the network can also indicate the simulated beam information corresponding to the port of each CSI-RS resource through CSI report configuration information and / or CSI resource configuration information, so as to determine the channel information of one or beams.

[0303] ◆Information used to indicate the simulated beam information corresponding to the port group to which the port of each CSI-RS resource belongs.

[0304] It should be noted that when the CSI report configuration information is associated with multiple CSI-RS resources, the network will divide the ports of these CSI-RS resources into different port groups. In this way, the network can configure the simulated beam information corresponding to the ports of these CSI-RS resources to the terminal device according to the port groups.

[0305] ◆Information used to indicate the simulated beam information corresponding to each CSI-RS resource.

[0306] It should be noted that the network will configure the simulated beam information corresponding to the CSI-RS resources to the terminal device so that the terminal can determine the channel information of the beam according to the simulated beam information corresponding to the CSI-RS resources.

[0307] Therefore, in "Example 1", in addition to associating multiple CSI-RSs through CSI report configuration information, the network can also indicate the simulated beam information corresponding to each CSI-RS resource through CSI report configuration information and / or CSI resource configuration information, so as to determine the channel information of one or beams.

[0308] Embodiment 2:

[0309]

describe

[0310] In "Example 2", the CSI report configuration information may be associated with one CSI-RS resource, and the one CSI-RS resource may correspond to one or more interference measurement resources, thereby configuring one CSI-RS resource through the CSI report configuration information.

[0311] For example, taking the interaction between a network device and a terminal device as an example, the network device sends CSI report configuration information to the terminal device. Correspondingly, the terminal device receives the CSI report configuration information. In this way, since the CSI report configuration information is associated with a CSI-RS resource, the terminal device can perform channel measurement based on the one CSI-RS resource to obtain channel-related information of one or more beams, and then report the channel-related information of the one or more beams through the CSI report configured by the CSI report configuration information.

[0312] At the same time, since one CSI-RS resource corresponds to one or more interference measurement resources, the terminal device can perform interference measurement according to the interference measurement resources to obtain the channel interference situation.

[0313] Optionally, the one CSI-RS resource is a single port or multiple ports, wherein the port is a CSI-RS port.

[0314] In this way, when the network configures a CSI-RS resource associated with the CSI report configuration information to the terminal device, the CSI-RS resource may correspond to a single port or multiple ports.

[0315] Optionally, the one CSI-RS resource is associated with one or more QCL-TypeD attributes.

[0316] In this way, since a CSI-RS resource associated with the CSI report configuration information is associated with one or more QCL-TypeD attributes, it is beneficial to report the CSI of one or more beams.

[0317] Optionally, the CSI report configuration information is associated with CSI resource configuration information, where the CSI resource configuration information is used to configure a CSI-RS resource.

[0318] For example, taking the CSI report configuration information as CSI-ReportConfig and the CSI resource configuration information as CSI-ResourceConfig as an example, since CSI-ReportConfig indicates / includes CSI-ResourceConfigId, CSI-ReportConfig is associated with CSI-ResourceConfig through CSI-ResourceConfigId.

[0319] In this way, since the CSI resource configuration information is used to configure one CSI-RS resource, by associating the CSI report configuration information with the CSI resource configuration information, it is possible to associate the CSI report configuration information with one CSI-RS resource.

[0320] Optionally, the CSI report configuration information and / or CSI resource configuration information associated with the CSI report configuration information includes at least one of the following:

[0321] ◆Information used to indicate the frequency domain unit with the same associated QCL-TypeD attribute from all frequency domain units of the one CSI-RS resource. The frequency domain unit may be a subcarrier, RB, PRB, RE, etc.

[0322] It should be noted that in "Example 2", the network will configure each frequency domain unit of the CSI-RS resource to be associated with a QCL-TypeD attribute, and the QCL-TypeD attributes associated with these frequency domain units have the same QCL-TypeD attributes. It can be seen that the terminal device can use the frequency domain units with the same QCL-TypeD attributes as a whole to represent a beam, and perform channel measurement based on these frequency domain units with the same QCL-TypeD attributes to obtain the channel information of a beam.

[0323] In this way, in "Example 2", in addition to associating a CSI-RS through CSI report configuration information, the network can also use the CSI report configuration information and / or CSI resource configuration information to indicate which frequency domain units in all frequency domain resources of the one CSI-RS resource are associated with the same QCL-TypeD attribute, so as to determine the channel information of one or beam.

[0324] For example, taking the frequency domain unit as RE, Figure 3 The CSI-RS resource associated with the CSI report configuration information includes multiple REs, such as RE0 to RE8. Among them, RE0, RE3 and RE6 are associated with the first QCL-TypeD attribute, RE1, RE4 and RE7 are associated with the second QCL-TypeD attribute, and RE2, RE5 and RE8 are associated with the third QCL-TypeD attribute.

[0325] For another example, taking the frequency domain unit as PRB, a CSI-RS resource associated with the CSI report configuration information includes multiple PRBs, such as PRB0 to PRB8. Among them, PRB0, PRB3 and PRB6 are associated with the first QCL-TypeD attribute, PRB1, PRB4 and PRB7 are associated with the second QCL-TypeD attribute, and PRB2, PRB5 and PRB8 are associated with the third QCL-TypeD attribute.

[0326] ◆Information used to indicate the ports or port groups with the same associated QCL-TypeD attribute from all ports of the one CSI-RS resource.

[0327] It should be noted that when the CSI report configuration information is associated with a CSI-RS resource, the network will divide the ports of the CSI-RS resource into a certain port group. In this way, the network can configure the terminal device according to the port group which frequency domain units in all frequency domain resources of the CSI-RS resource are associated with the same QCL-TypeD attribute.

[0328] ◆Information used to indicate the simulated beam information corresponding to the port of a CSI-RS resource.

[0329] It should be noted that the network will configure the simulated beam information corresponding to the port of the CSI-RS resource to the terminal device, so that the terminal can determine the channel information of the beam according to the simulated beam information corresponding to the port of the CSI-RS resource. Therefore, in "Example 2", in addition to associating a CSI-RS through CSI report configuration information, the network can also indicate the simulated beam information corresponding to the port of the CSI-RS resource through CSI report configuration information and / or CSI resource configuration information, so as to determine the channel information of one or beams.

[0330] ◆Information used to indicate the simulated beam information corresponding to the port group to which the port of a CSI-RS resource belongs.

[0331] It should be noted that when the CSI report configuration information is associated with a CSI-RS resource, the network will divide the port of the CSI-RS resource into a port group. In this way, the network can configure the simulated beam information corresponding to the port of the CSI-RS resource to the terminal device according to the port group.

[0332] ◆Information used to indicate the simulated beam information corresponding to a CSI-RS resource.

[0333] It should be noted that the network will configure the simulated beam information corresponding to the CSI-RS resource to the terminal device so that the terminal can determine the channel information of the beam according to the simulated beam information corresponding to the CSI-RS resource. Therefore, in "Example 2", in addition to associating a CSI-RS through CSI report configuration information, the network can also indicate the simulated beam information corresponding to the CSI-RS resource through CSI report configuration information and / or CSI resource configuration information to determine the channel information of one or beams.

[0334] 5) CSI Report

[0335] It should be noted that the CSI report configuration information of the present application is used to configure the CSI report, and combined with the content of the above "3) Channel-related information", the CSI report reported by the terminal device may include channel-related information of one or more beams.

[0336] Optionally, the CSI report may include at least one of the following:

[0337] ◆First compression information of one or more beams

[0338] It can be understood that when the network or terminal device supports the first compression processing, the terminal device can independently decide or perform the first compression processing on the channel information of one or more beams according to the network instructions or the protocol provisions, and then report the information after the first compression processing or process the information after the first compression processing and then report it, so as to reduce resource occupancy and signaling overhead, etc.

[0339] ◆Second compression information of one or more beams;

[0340] It can be understood that when the network or terminal device supports the second compression processing, the terminal device can independently decide or perform the second compression processing on the channel information of one or more beams according to the network instructions or the protocol provisions, and then report the information after the second compression processing or process the information after the second compression processing and then report it, so as to reduce resource occupancy and signaling overhead, etc.

[0341] Alternatively, when the network or terminal device does not support the first compression processing or for other reasons, the terminal device may not perform the first compression processing on the channel information of one or more beams, but may autonomously decide to perform the second compression processing on the channel information of one or more beams in accordance with network instructions or protocol provisions, and then report the information after the second compression processing or process the information after the second compression processing before reporting, so as to reduce resource occupancy and signaling overhead, etc.

[0342] ◆Channel information of one or more beams;

[0343] It is understandable that the terminal device may independently decide or report the channel information of one or more beams according to the network instructions or the protocol provisions. Alternatively, when the network or the terminal device does not support the first compression processing, does not support the second compression processing or for other reasons, the terminal device may not perform the first compression processing and the second compression processing on the channel-related information of one or more beams, but may independently decide or report the channel information of one or more beams according to the network instructions or the protocol provisions.

[0344] ◆CSI information in one or more beams;

[0345] It is understandable that the terminal device can independently decide or report the CSI information of one or more beams according to the network instructions or the protocol provisions. Alternatively, when the network or the terminal device does not support the first compression processing, does not support the second compression processing or other reasons, the terminal device can independently decide or report the CSI information of one or more beams according to the network instructions or the protocol provisions.

[0346] ◆Old / original / previous channel related information of one or more beams.

[0347] It is understandable that the terminal device can independently decide or report the old / old / original / previous channel related information of one or more beams according to the network instructions or the protocol provisions. Alternatively, when the network or the terminal device does not support the first compression processing, does not support the second compression processing or other reasons, the terminal device can independently decide or report the old / old / original / previous channel related information of one or more beams according to the network instructions or the protocol provisions.

[0348] 3. Example of a communication method

[0349]

describe

[0350] In combination with the above content, the following takes the interaction between a network device and a terminal device as an example to introduce an example of a communication method in an embodiment of the present application. Among them, the terminal device can be a chip, a chip module or a communication module, etc., and the network device can be a chip, a chip module or a communication module, etc.

[0351] like Figure 4 FIG. 1 is a flow chart of a communication method according to an embodiment of the present application, which specifically includes the following steps:

[0352] S410. The network device sends CSI report configuration information, where the CSI report configuration information is used to configure a CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0353] Correspondingly, the terminal device obtains the CSI report configuration information.

[0354] It should be noted that the “CSI report configuration information”, “CSI-RS resources”, etc. can be found in the above contents in detail and will not be repeated here.

[0355] It can be seen that in the network scenario of the present application, the present application can introduce CSI report configuration information, which is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources, so that the CSI report is associated with one or more CSI-RS resources, thereby realizing resource configuration for CSI feedback / CSI reporting.

[0356] In this way, since resources are configured for CSI feedback / CSI reporting, the terminal device can perform channel measurement based on the CSI-RS resources associated with the CSI report configuration information to obtain channel-related information of one or more beams, and then carry the channel-related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

[0357] In addition, compared to the current network scenario where resources are only configured for CSI feedback / CSI reporting of a single beam under NCJT, CJT or multiple TRPs, the present application can configure resources for CSI feedback / CSI reporting of one or more beams that are not NCJT, not CJT or a single TRP, so as to improve the diversity of network scenarios.

[0358] Some possible implementations

[0359] In combination with the above content, some possible implementation methods are described below. For other methods not described, please refer to the above content for details, and no further elaboration will be given.

[0360] Optionally, if the CSI report configuration information is associated with multiple CSI-RS resources, each of the multiple CSI-RS resources corresponds to one or more interference measurement resources.

[0361] Optionally, each CSI-RS resource is a single port or multiple ports, and the number of ports of different CSI-RS resources is the same or different.

[0362] Optionally, each CSI-RS resource is associated with a QCL-TypeD attribute;

[0363] The QCL-TypeD attributes associated with different CSI-RS resources are different.

[0364] Optionally, the frequency domain density factors corresponding to different CSI-RS resources are the same, and the frequency domain density factors are used to determine the frequency domain positions of the CSI-RS resources;

[0365] The frequency domain offsets corresponding to different CSI-RS resources are different, and the frequency domain offsets are used to determine the frequency domain positions of the CSI-RS resources.

[0366] Optionally, the CSI report configuration information and / or CSI resource configuration information associated with the CSI report configuration information includes at least one of the following:

[0367] Information used to indicate the simulated beam information corresponding to the port of each CSI-RS resource, information used to indicate the simulated beam information corresponding to the port group to which the port of each CSI-RS resource belongs, and information used to indicate the simulated beam information corresponding to each CSI-RS resource;

[0368] The CSI resource configuration information is used to configure CSI-RS resources.

[0369] Optionally, if the CSI report configuration information is associated with a CSI-RS resource, then one CSI-RS resource corresponds to one or more interference measurement resources.

[0370] Optionally, a CSI-RS resource is a single port or multiple ports.

[0371] Optionally, one CSI-RS resource is associated with one or more QCL-TypeD attributes.

[0372] Optionally, the CSI report configuration information and / or CSI resource configuration information associated with the CSI report configuration information includes at least one of the following:

[0373] Information used to indicate frequency domain units with the same associated QCL-TypeD attribute from all frequency domain units of a CSI-RS resource, information used to indicate ports or port groups with the same associated QCL-TypeD attribute from all ports of a CSI-RS resource, information used to indicate analog beam information corresponding to a port of a CSI-RS resource, information used to indicate analog beam information corresponding to a port group to which a port of a CSI-RS resource belongs, and information used to indicate analog beam information corresponding to a CSI-RS resource;

[0374] The CSI resource configuration information is used to configure the CSI-RS resources associated with the CSI report configuration information.

[0375] Optionally, the CSI report includes at least one of the following:

[0376] first compressed information of one or more beams, channel information of one or more beams, CSI information of one or more beams, and second compressed information of one or more beams;

[0377] The first compressed information of the one or more beams is information obtained after first compression processing is performed on the channel information of the one or more beams;

[0378] The second compressed information of the one or more beams is information obtained by performing a second compression process on the channel information of the one or more beams.

[0379] Optionally, the channel information of one or more beams is obtained by performing channel measurement based on CSI-RS resources associated with the CSI report configuration information.

[0380] 3. Example of a communication device

[0381]

describe

[0382] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the method side. It is understandable that in order to realize the above functions, the terminal device includes a hardware structure and / or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0383] The embodiment of the present application can divide the terminal device into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation.

[0384] In the case of an integrated unit, Figure 5 1 is a block diagram of the functional units of a communication device according to an embodiment of the present application, wherein the communication device 500 includes an acquisition unit 501 .

[0385] Optionally, the acquisition unit 501 may be a module unit for receiving / acquiring signals, data, information, etc., and there is no specific limitation on this.

[0386] Optionally, the communication device 500 may further include a storage unit for storing computer program codes or instructions executed by the communication device 500. The storage unit may be a memory.

[0387] Optionally, the communication device 500 may be a chip or a chip module.

[0388] Optionally, the acquisition unit 501 may be integrated into other units.

[0389] For example, the acquisition unit 501 may be integrated in a communication unit, wherein the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.

[0390] For another example, the acquisition unit 501 may be integrated into the processing unit.

[0391] It should be noted that the processing unit can be a processor or a controller, for example, a baseband processor, a baseband chip, a central processing unit (CPU), a general 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 this application. The processing unit can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of DSPs and microprocessors, etc.

[0392] Optionally, the communication device 500 is used to execute any step performed by the terminal device / chip / chip module / network device, etc. in the above method embodiment.

[0393] In specific implementation, the acquisition unit 501 is used to execute any step in the above method embodiment, and when executing actions such as sending, other units can be selectively called to complete corresponding operations.

[0394] The acquisition unit 501 is used to acquire CSI report configuration information, where the CSI report configuration information is used to configure a CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0395] It can be seen that in the network scenario of the present application, the present application can introduce CSI report configuration information, which is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources, so that the CSI report is associated with one or more CSI-RS resources, thereby realizing resource configuration for CSI feedback / CSI reporting.

[0396] In this way, since resources are configured for CSI feedback / CSI reporting, the terminal device can perform channel measurement based on the CSI-RS resources associated with the CSI report configuration information to obtain channel-related information of one or more beams, and then carry the channel-related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

[0397] In addition, compared to the current network scenario where resources are only configured for CSI feedback / CSI reporting of a single beam under NCJT, CJT or multiple TRPs, the present application can configure resources for CSI feedback / CSI reporting of one or more beams that are not NCJT, not CJT or a single TRP, so as to improve the diversity of network scenarios.

[0398] It should be noted that Figure 5 The specific implementation of each operation in the embodiment can be found in the description of the method embodiment shown above, and will not be described in detail here.

[0399] Some possible implementations

[0400] Some possible implementations are described below, wherein some specific descriptions can be found above, and will not be repeated here.

[0401] Optionally, if the CSI report configuration information is associated with multiple CSI-RS resources, each of the multiple CSI-RS resources corresponds to one or more interference measurement resources.

[0402] Optionally, each CSI-RS resource is a single port or multiple ports, and the number of ports of different CSI-RS resources is the same or different.

[0403] Optionally, each CSI-RS resource is associated with a D QCL-TypeD attribute;

[0404] The QCL-TypeD attributes associated with different CSI-RS resources are different.

[0405] Optionally, the frequency domain density factors corresponding to different CSI-RS resources are the same, and the frequency domain density factors are used to determine the frequency domain positions of the CSI-RS resources;

[0406] The frequency domain offsets corresponding to different CSI-RS resources are different, and the frequency domain offsets are used to determine the frequency domain positions of the CSI-RS resources.

[0407] Optionally, the CSI report configuration information and / or CSI resource configuration information associated with the CSI report configuration information includes at least one of the following:

[0408] Information used to indicate the simulated beam information corresponding to the port of each CSI-RS resource, information used to indicate the simulated beam information corresponding to the port group to which the port of each CSI-RS resource belongs, and information used to indicate the simulated beam information corresponding to each CSI-RS resource;

[0409] The CSI resource configuration information is used to configure CSI-RS resources.

[0410] Optionally, if the CSI report configuration information is associated with a CSI-RS resource, then one CSI-RS resource corresponds to one or more interference measurement resources.

[0411] Optionally, a CSI-RS resource is a single port or multiple ports.

[0412] Optionally, one CSI-RS resource is associated with one or more QCL-TypeD attributes.

[0413] Optionally, the CSI report configuration information and / or CSI resource configuration information associated with the CSI report configuration information includes at least one of the following:

[0414] Information used to indicate frequency domain units with the same associated QCL-TypeD attribute from all frequency domain units of a CSI-RS resource, information used to indicate ports or port groups with the same associated QCL-TypeD attribute from all ports of a CSI-RS resource, information used to indicate analog beam information corresponding to a port of a CSI-RS resource, information used to indicate analog beam information corresponding to a port group to which a port of a CSI-RS resource belongs, and information used to indicate analog beam information corresponding to a CSI-RS resource;

[0415] The CSI resource configuration information is used to configure the CSI-RS resources associated with the CSI report configuration information.

[0416] Optionally, the CSI report includes at least one of the following:

[0417] first compressed information of one or more beams, channel information of one or more beams, CSI information of one or more beams, and second compressed information of one or more beams;

[0418] The first compressed information of the one or more beams is information obtained after first compression processing is performed on the channel information of the one or more beams;

[0419] The second compressed information of the one or more beams is information obtained by performing a second compression process on the channel information of the one or more beams.

[0420] Optionally, the channel information of one or more beams is obtained by performing channel measurement based on CSI-RS resources associated with the CSI report configuration information.

[0421] 4. Example of another communication device

[0422]

describe

[0423] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the method side. It is understandable that in order to realize the above functions, the network device includes a hardware structure and / or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0424] The embodiment of the present application can divide the network device into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation.

[0425] In the case of an integrated unit, Figure 6 6 is a block diagram of the functional units of a communication device according to an embodiment of the present application, wherein the communication device 600 includes a sending unit 601 .

[0426] Optionally, the sending unit 601 may be a module unit for sending signals, data, information, etc., and there is no specific limitation on this.

[0427] Optionally, the communication device 600 may further include a storage unit, which is used to store computer program codes or instructions executed by the communication device 600. The storage unit may be a memory.

[0428] Optionally, the communication device 600 may be a chip or a chip module.

[0429] Optionally, the sending unit 601 may be integrated into other units.

[0430] For example, the sending unit 601 may be integrated in a communication unit, wherein the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.

[0431] For another example, the sending unit 601 may be integrated into the processing unit.

[0432] It should be noted that the processing unit can be a processor or a controller, for example, a baseband processor, a baseband chip, a central processing unit (CPU), a general 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 this application. The processing unit can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of DSPs and microprocessors, etc.

[0433] Optionally, the communication device 600 is used to execute any step performed by the terminal device / chip / chip module / network device, etc. in the above method embodiment.

[0434] In specific implementation, the sending unit 601 is used to execute any step in the above method embodiment, and when executing actions such as sending, other units can be selectively called to complete corresponding operations.

[0435] The sending unit 601 is used to send CSI report configuration information, where the CSI report configuration information is used to configure a CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0436] It can be seen that in the network scenario of the present application, the present application can introduce CSI report configuration information, which is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources, so that the CSI report is associated with one or more CSI-RS resources, thereby realizing resource configuration for CSI feedback / CSI reporting.

[0437] In this way, since resources are configured for CSI feedback / CSI reporting, the terminal device can perform channel measurement based on the CSI-RS resources associated with the CSI report configuration information to obtain channel-related information of one or more beams, and then carry the channel-related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

[0438] In addition, compared to the current network scenario where resources are only configured for CSI feedback / CSI reporting of a single beam under NCJT, CJT or multiple TRPs, the present application can configure resources for CSI feedback / CSI reporting of one or more beams that are not NCJT, not CJT or a single TRP, so as to improve the diversity of network scenarios.

[0439] It should be noted that Figure 5 The specific implementation of each operation in the embodiment can be found in the description of the method embodiment shown above, and will not be described in detail here.

[0440] Some possible implementations

[0441] Some possible implementations are described below, wherein some specific descriptions can be found above, and will not be repeated here.

[0442] Optionally, if the CSI report configuration information is associated with multiple CSI-RS resources, each of the multiple CSI-RS resources corresponds to one or more interference measurement resources.

[0443] Optionally, each CSI-RS resource is a single port or multiple ports, and the number of ports of different CSI-RS resources is the same or different.

[0444] Optionally, each CSI-RS resource is associated with a QCL-TypeD attribute;

[0445] The QCL-TypeD attributes associated with different CSI-RS resources are different.

[0446] Optionally, the frequency domain density factors corresponding to different CSI-RS resources are the same, and the frequency domain density factors are used to determine the frequency domain positions of the CSI-RS resources;

[0447] The frequency domain offsets corresponding to different CSI-RS resources are different, and the frequency domain offsets are used to determine the frequency domain positions of the CSI-RS resources.

[0448] Optionally, the CSI report configuration information and / or CSI resource configuration information associated with the CSI report configuration information includes at least one of the following:

[0449] Information used to indicate the simulated beam information corresponding to the port of each CSI-RS resource, information used to indicate the simulated beam information corresponding to the port group to which the port of each CSI-RS resource belongs, and information used to indicate the simulated beam information corresponding to each CSI-RS resource;

[0450] The CSI resource configuration information is used to configure CSI-RS resources.

[0451] Optionally, if the CSI report configuration information is associated with a CSI-RS resource, then one CSI-RS resource corresponds to one or more interference measurement resources.

[0452] Optionally, a CSI-RS resource is a single port or multiple ports.

[0453] Optionally, one CSI-RS resource is associated with one or more QCL-TypeD attributes.

[0454] Optionally, the CSI report configuration information and / or CSI resource configuration information associated with the CSI report configuration information includes at least one of the following:

[0455] Information used to indicate frequency domain units with the same associated QCL-TypeD attribute from all frequency domain units of a CSI-RS resource, information used to indicate ports or port groups with the same associated QCL-TypeD attribute from all ports of a CSI-RS resource, information used to indicate analog beam information corresponding to a port of a CSI-RS resource, information used to indicate analog beam information corresponding to a port group to which a port of a CSI-RS resource belongs, and information used to indicate analog beam information corresponding to a CSI-RS resource;

[0456] The CSI resource configuration information is used to configure the CSI-RS resources associated with the CSI report configuration information.

[0457] Optionally, the CSI report includes at least one of the following:

[0458] first compressed information of one or more beams, channel information of one or more beams, CSI information of one or more beams, and second compressed information of one or more beams;

[0459] The first compressed information of the one or more beams is information obtained after first compression processing is performed on the channel information of the one or more beams;

[0460] The second compressed information of the one or more beams is information obtained by performing a second compression process on the channel information of the one or more beams.

[0461] Optionally, the channel information of one or more beams is obtained by performing channel measurement based on CSI-RS resources associated with the CSI report configuration information.

[0462] 5. Example of a terminal device

[0463] See also Figure 7 , Figure 7 The terminal device 700 may include a processor 710 , a memory 720 , and a communication bus for connecting the processor 710 and the memory 720 .

[0464] Optionally, the memory 720 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) or portable read-only memory (CD-ROM), and the memory 720 is used to store the program code executed by the terminal device 700 and the transmitted data.

[0465] Optionally, the terminal device 700 also includes a communication interface, which is used to receive and send data.

[0466] Optionally, the processor 710 may be one or more CPUs. When the processor 710 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0467] Optionally, the processor 710 may be a baseband chip, a chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof.

[0468] In a specific implementation, the processor 710 in the terminal device 700 is used to execute the computer program or instruction 721 stored in the memory 720 to perform the following operations:

[0469] CSI report configuration information is obtained, where the CSI report configuration information is used to configure a CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0470] It can be seen that in the network scenario of the present application, the present application can introduce CSI report configuration information, which is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources, so that the CSI report is associated with one or more CSI-RS resources, thereby realizing resource configuration for CSI feedback / CSI reporting.

[0471] In this way, since resources are configured for CSI feedback / CSI reporting, the terminal device can perform channel measurement based on the CSI-RS resources associated with the CSI report configuration information to obtain channel-related information of one or more beams, and then carry the channel-related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

[0472] In addition, compared to the current network scenario where resources are only configured for CSI feedback / CSI reporting of a single beam under NCJT, CJT or multiple TRPs, the present application can configure resources for CSI feedback / CSI reporting of one or more beams that are not NCJT, not CJT or a single TRP, so as to improve the diversity of network scenarios.

[0473] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above, and the terminal device 700 can be used to execute the above method embodiment of the present application, which will not be repeated here.

[0474] 6. Example of a network device

[0475] See also Figure 8 , Figure 8 8 is a schematic diagram of a network device provided in an embodiment of the present application, wherein the network device 800 includes a processor 810 , a memory 820 , and a communication bus for connecting the processor 810 and the memory 820 .

[0476] Optionally, the memory 820 includes but is not limited to RAM, ROM, EPROM or CD-ROM, and the memory 820 is used to store relevant instructions and data.

[0477] Optionally, the network device 800 also includes a communication interface for receiving and sending data.

[0478] Optionally, the processor 810 may be one or more CPUs. When the processor 810 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0479] Optionally, the processor 810 may be a baseband chip, a chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof.

[0480] Optionally, the processor 810 in the network device 800 is used to execute the computer program or instruction 821 stored in the memory 820 to perform the following operations:

[0481] Send CSI report configuration information, where the CSI report configuration information is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

[0482] It can be seen that in the network scenario of the present application, the present application can introduce CSI report configuration information, which is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources, so that the CSI report is associated with one or more CSI-RS resources, thereby realizing resource configuration for CSI feedback / CSI reporting.

[0483] In this way, since resources are configured for CSI feedback / CSI reporting, the terminal device can perform channel measurement based on the CSI-RS resources associated with the CSI report configuration information to obtain channel-related information of one or more beams, and then carry the channel-related information of the one or more beams according to the CSI report configured by the CSI report configuration information, thereby realizing CSI feedback / CSI reporting.

[0484] In addition, compared to the current network scenario where resources are only configured for CSI feedback / CSI reporting of a single beam under NCJT, CJT or multiple TRPs, the present application can configure resources for CSI feedback / CSI reporting of one or more beams that are not NCJT, not CJT or a single TRP, so as to improve the diversity of network scenarios.

[0485] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above, and the network device 800 can be used to execute the above method embodiment of the present application, which will not be repeated here.

[0486] VII. Other related examples

[0487] Optionally, the above method embodiment can be applied to a terminal device or in a terminal device. That is to say, the execution subject of the above method embodiment can be a terminal device, a chip, a chip module or a module, etc., and there is no specific limitation on this.

[0488] Optionally, the above method embodiment can be applied to a network device or in a network device. That is to say, the execution subject of the above method embodiment can be a network device, a chip, a chip module or a module, etc., and there is no specific limitation on this.

[0489] An embodiment of the present application also provides a chip, including a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiment.

[0490] An embodiment of the present application also provides a chip module, including a transceiver component and a chip, the chip including a processor, a memory and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiment.

[0491] An embodiment of the present application also provides a computer-readable storage medium storing a computer program or instructions, which implements the steps described in the above method embodiment when executed.

[0492] The embodiment of the present application also provides a computer program product, including a computer program or instructions, which implement the steps described in the above method embodiment when executed.

[0493] An embodiment of the present application also provides a communication system, including the above-mentioned terminal device and the above-mentioned network device.

[0494] It should be noted that, for the above-mentioned various embodiments, for the sake of simple description, they are all expressed as a series of action combinations. Those skilled in the art should be aware that the present application is not limited by the described order of actions, because some steps in the embodiments of the present application can be performed in other orders or simultaneously. In addition, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions, steps, modules or units involved are not necessarily required by the embodiments of the present application.

[0495] In the above embodiments, the embodiments of the present application have different focuses on the description of each embodiment. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0496] The steps of the method or algorithm described in the embodiments of the present application can be implemented in hardware or by executing software instructions by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disks, mobile hard disks, read-only compact disks (CD-ROMs) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a terminal device or a management device. Of course, the processor and the storage medium can also be present in a terminal device or a management device as discrete components.

[0497] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part 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, the process or function described in the embodiments of the present application is generated in whole or in part. 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 computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. 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 includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0498] The modules / units included in the devices and products described in the above embodiments may be software modules / units or hardware modules / units, or may be partially software modules / units and partially hardware modules / units. For example, for the devices and products applied to or integrated in the chip, the modules / units included therein may all be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on the processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for the devices and products applied to or integrated in the chip module, the modules / units included therein may all be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or in different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The software programs run on the processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits. It is implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in hardware such as circuits; for various devices and products applied to or integrated in the terminal equipment, the various modules / units contained therein can be implemented in hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal equipment, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal equipment, and the remaining (if any) modules / units can be implemented in hardware such as circuits.

[0499] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above description is only the specific implementation method of the embodiments of the present application and is not intended to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A communication method, characterized in that: include: Acquire CSI report configuration information, where the CSI report configuration information is used to configure a CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

2. The method according to claim 1, characterized in that If the CSI report configuration information is associated with multiple CSI-RS resources, each of the multiple CSI-RS resources corresponds to one or more interference measurement resources.

3. The method according to claim 1 or 2, characterized in that: Each CSI-RS resource is a single port or multiple ports, and the number of ports of different CSI-RS resources is the same or different.

4. The method according to claim 2 or 3, characterized in that: Each CSI-RS resource is associated with a quasi-co-location type DQCL-TypeD attribute; The QCL-TypeD attributes associated with different CSI-RS resources are different.

5. The method according to any one of claims 2 to 4, characterized in that: The frequency domain density factors corresponding to different CSI-RS resources are the same, and the frequency domain density factors are used to determine the frequency domain positions of the CSI-RS resources; The frequency domain offsets corresponding to different CSI-RS resources are different, and the frequency domain offsets are used to determine the frequency domain positions of the CSI-RS resources.

6. The method according to claim 2 or 3, characterized in that: The CSI report configuration information and / or the CSI resource configuration information associated with the CSI report configuration information includes at least one of the following: Information used to indicate the simulated beam information corresponding to the port of each CSI-RS resource, information used to indicate the simulated beam information corresponding to the port group to which the port of each CSI-RS resource belongs, and information used to indicate the simulated beam information corresponding to each CSI-RS resource; The CSI resource configuration information is used to configure CSI-RS resources.

7. The method according to claim 1, characterized in that If the CSI report configuration information is associated with one CSI-RS resource, then the one CSI-RS resource corresponds to one or more interference measurement resources.

8. The method according to claim 7, characterized in that The one CSI-RS resource is a single port or multiple ports.

9. The method according to claim 7 or 8, characterized in that: The one CSI-RS resource is associated with one or more QCL-TypeD attributes.

10. The method according to any one of claims 7 to 9, characterized in that: The CSI report configuration information and / or the CSI resource configuration information associated with the CSI report configuration information includes at least one of the following: Information for indicating frequency domain units with the same associated QCL-TypeD attribute from all frequency domain units of the one CSI-RS resource, information for indicating ports or port groups with the same associated QCL-TypeD attribute from all ports of the one CSI-RS resource, information for indicating analog beam information corresponding to ports of the one CSI-RS resource, information for indicating analog beam information corresponding to a port group to which ports of the one CSI-RS resource are located, and information for indicating analog beam information corresponding to the one CSI-RS resource; The CSI resource configuration information is used to configure the CSI-RS resource associated with the CSI report configuration information.

11. The method according to any one of claims 1 to 10, characterized in that: The CSI report includes at least one of the following: first compressed information of one or more beams, channel information of the one or more beams, CSI information of the one or more beams, and second compressed information of the one or more beams; The first compressed information of the one or more beams is information obtained after a first compression process is performed on the channel information of the one or more beams; The second compressed information of the one or more beams is information obtained by performing a second compression process on the channel information of the one or more beams.

12. The method according to claim 11, characterized in that The channel information of the one or more beams is obtained by performing channel measurement according to the CSI-RS resources associated with the CSI report configuration information.

13. A communication method, characterized in that: include: Send CSI report configuration information, where the CSI report configuration information is used to configure a CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

14. The method according to claim 13, characterized in that If the CSI report configuration information is associated with multiple CSI-RS resources, each of the multiple CSI-RS resources corresponds to one or more interference measurement resources.

15. The method according to claim 13 or 14, characterized in that Each CSI-RS resource is a single port or multiple ports, and the number of ports of different CSI-RS resources is the same or different.

16. The method according to claim 14 or 15, characterized in that Each CSI-RS resource is associated with a quasi-co-location type DQCL-TypeD attribute; The QCL-TypeD attributes associated with different CSI-RS resources are different.

17. The method according to any one of claims 14 to 16, characterized in that: The frequency domain density factors corresponding to different CSI-RS resources are the same, and the frequency domain density factors are used to determine the frequency domain positions of the CSI-RS resources; The frequency domain offsets corresponding to different CSI-RS resources are different, and the frequency domain offsets are used to determine the frequency domain positions of the CSI-RS resources.

18. The method according to claim 14 or 15, characterized in that The CSI report configuration information and / or the CSI resource configuration information associated with the CSI report configuration information includes at least one of the following: Information used to indicate the simulated beam information corresponding to the port of each CSI-RS resource, and information used to indicate the simulated beam information corresponding to the port group to which the port of each CSI-RS resource belongs; The CSI resource configuration information is used to configure CSI-RS resources.

19. The method according to claim 13, characterized in that If the CSI report configuration information is associated with one CSI-RS resource, then the one CSI-RS resource corresponds to one or more interference measurement resources.

20. The method according to claim 19, characterized in that The one CSI-RS resource is a single port or multiple ports.

21. The method according to claim 19 or 20, characterized in that The one CSI-RS resource is associated with one or more QCL-TypeD attributes.

22. The method according to any one of claims 19 to 21, characterized in that: The CSI report configuration information and / or the CSI resource configuration information associated with the CSI report configuration information includes at least one of the following: Information for indicating frequency domain units with the same associated QCL-TypeD attribute from all frequency domain units of the one CSI-RS resource, information for indicating ports or port groups with the same associated QCL-TypeD attribute from all ports of the one CSI-RS resource, information for indicating analog beam information corresponding to ports of the one CSI-RS resource, and information for indicating analog beam information corresponding to a port group to which ports of the one CSI-RS resource are located; The CSI resource configuration information is used to configure the CSI-RS resource associated with the CSI report configuration information.

23. The method according to any one of claims 13 to 22, characterized in that: The CSI report includes at least one of the following: first compressed information of one or more beams, channel information of the one or more beams, CSI information of the one or more beams, and second compressed information of the one or more beams; The first compressed information of the one or more beams is information obtained after a first compression process is performed on the channel information of the one or more beams; The second compressed information of the one or more beams is information obtained by performing a second compression process on the channel information of the one or more beams.

24. The method according to claim 23, characterized in that The channel information of the one or more beams is obtained by performing channel measurement according to the CSI-RS resources associated with the CSI report configuration information.

25. A communication device, characterized in that: include: The acquisition unit is used to acquire CSI report configuration information, where the CSI report configuration information is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

26. A communication device, characterized in that: include: The sending unit is used to send CSI report configuration information, where the CSI report configuration information is used to configure the CSI report, and the CSI report configuration information is associated with one or more CSI-RS resources.

27. A terminal device comprising a processor, a memory and a computer program or instruction stored in the memory, characterized in that: The processor executes the computer program or instructions to implement the steps of the method according to any one of claims 1 to 12.

28. A network device comprising a processor, a memory and a computer program or instruction stored in the memory, characterized in that: The processor executes the computer program or instructions to implement the steps of the method according to any one of claims 13-24.

29. A chip, comprising a processor and a communication interface, characterized in that: The processor performs the steps of the method of any one of claims 1-12 or 13-24.

30. A computer-readable storage medium, characterized in that: The computer stores a computer program or an instruction, and when the computer program or the instruction is executed, the steps of the method according to any one of claims 1 to 12 or 13 to 24 are performed.

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