CN116938387A - Channel state information report transmission method and device, terminal equipment and network equipment - Google Patents
Channel state information report transmission method and device, terminal equipment and network equipment Download PDFInfo
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- H—ELECTRICITY
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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Abstract
The application discloses a channel state information report transmission method and device, terminal equipment and network equipment; the method comprises the following steps: the network equipment sends configuration information, wherein the configuration information is used for determining a first CSI report, the first CSI report is a CSI report containing compressed information, and the compressed information is information after channel information is compressed; the terminal equipment acquires the configuration information; the terminal equipment sends a first CSI report according to the configuration information; the network device receives the first CSI report according to the configuration information. In order to realize the feedback of the compressed information, the embodiment of the application adopts the CSI report to feed back the compressed information, introduces the configuration information, ensures that the first CSI report is determined through the configuration information, and transmits the first CSI report through the configuration information, thereby realizing the direct feedback of the compressed information through the transmission of the first CSI report, so as to reduce occupied resources, reduce signaling overhead and improve precision.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and apparatus for transmitting a channel state information report, a terminal device, and a network device.
Background
Currently, the standard protocols specified by the third generation partnership project organization (3rd Generation Partnership Project,3GPP) introduce channel state information (channel state information, CSI).
The CSI is channel state information that the terminal device is configured to feed back downlink channel quality to the network device, so that the network device selects an appropriate modulation and coding strategy (Modulation and Coding Scheme, MCS) for downlink data transmission, reduces a Block Error Rate (BLER) of downlink data transmission, and performs corresponding beam management, mobility management, adaptation tracking, rate matching, and other processes.
However, with the continuous evolution of the standard protocols established by 3GPP, there may be a case of adding or deleting information (carried/carried) contained in the CSI report, so how to transmit the CSI report needs further research.
Disclosure of Invention
The application provides a channel state information report transmission method and device, terminal equipment and network equipment, which are used for expecting to determine a first CSI report through configuration information and transmitting the first CSI report through the configuration information, so that feedback compressed information is realized through the transmission of the first CSI report, thereby being beneficial to reducing occupied resources, reducing signaling overhead and improving precision.
In a first aspect, the present application is a method for transmitting a channel state information report, applied to a terminal device, where the method includes:
acquiring configuration information, wherein the configuration information is used for determining a first Channel State Information (CSI) report, the first CSI report is a CSI report containing compressed information, and the compressed information is information after the channel information is compressed;
and sending the first CSI report according to the configuration information.
Therefore, the channel information may have the characteristics of large bit number, and the like, and the direct feedback of the channel information will cause the problems of more occupied resources, large signaling overhead, and the like, so that a mode of not directly feeding back the channel information is generally adopted. In order to reduce occupied resources, signaling overhead and the like, the embodiment of the application adopts a mode of compressing channel information, so that the compressed channel information (namely compressed information) has the characteristics of smaller bit number, higher precision and the like.
In order to realize the feedback of the compressed information, the embodiment of the application adopts the CSI report to feed back the compressed information, and introduces the configuration information, so that the terminal equipment acquires the configuration information to determine the CSI report (namely the first CSI report) containing the compressed information, and the terminal equipment can send the first CSI report through the configuration information, thereby realizing the feedback of the compressed information through the transmission of the first CSI report, and being beneficial to reducing occupied resources, reducing signaling overhead and improving precision.
In a second aspect, the present application is a channel state information report transmission method, applied to a network device, where the method includes:
transmitting configuration information, wherein the configuration information is used for determining a first Channel State Information (CSI) report, the first CSI report is a CSI report containing compressed information, and the compressed information is information after the channel information is compressed;
and receiving the first CSI report according to the configuration information.
Therefore, the channel information may have the characteristics of large bit number, and the like, and the direct feedback of the channel information will cause the problems of more occupied resources, large signaling overhead, and the like, so that a mode of not directly feeding back the channel information is generally adopted. In order to reduce occupied resources, signaling overhead and the like, the embodiment of the application adopts a mode of compressing channel information, so that the compressed channel information (namely compressed information) has the characteristics of smaller bit number, higher precision and the like.
In order to realize the feedback of the compressed information, the embodiment of the application adopts the CSI report to feed back the compressed information, and introduces the configuration information, so that the network equipment can determine the CSI report (namely the first CSI report) containing the compressed information by sending the configuration information, and the network equipment can receive the first CSI report by the configuration information, thereby realizing the feedback of the compressed information through the transmission of the first CSI report, and being beneficial to reducing occupied resources, reducing signaling overhead and improving precision.
In a third aspect, the present application is a channel state information report transmitting device, the device comprising:
an obtaining unit, configured to obtain configuration information, where the configuration information is used to determine a first CSI report, where the first CSI report is a CSI report that includes compressed information, and the compressed information is information after compression processing of channel information;
and the sending unit is used for sending the first CSI report according to the configuration information.
A fourth aspect is a channel state information report transmitting device according to the present application, the device comprising:
a transmitting unit, configured to transmit configuration information, where the configuration information is used to determine a first CSI report, where the first CSI report is a CSI report that includes compressed information, and the compressed information is information after compression processing of channel information;
and the receiving unit is used for receiving the first CSI report according to the configuration information.
In a fifth aspect, the steps in the method designed in the first aspect are applied in a terminal device.
In a sixth aspect, the steps in the method according to the second aspect are applied in a network device.
A seventh aspect is a terminal device according to 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 first aspect.
An eighth aspect is a network device according to the present application, including a processor, a memory, and a computer program or instructions stored on the memory, where the processor executes the computer program or instructions to implement the steps in the method designed in the second aspect.
A ninth aspect is a chip according to the present application, comprising a processor, wherein the processor performs the steps of the method according to the first or second aspect.
In a tenth aspect, the present application is a chip module, including a transceiver component and a chip, where the chip includes a processor, and the processor executes the steps in the method designed in the first aspect or the second aspect.
An eleventh aspect is a computer readable storage medium of the present application, in which a computer program or instructions are stored which, when executed, implement the steps in the method devised in the first or second aspect described above.
A twelfth aspect is a computer program product according to the application, comprising a computer program or instructions which, when executed, implement the steps of the method according to the first or second aspect.
The advantages of the third to twelfth aspects may be seen in the technical effects of the first or second aspects, and are not described here again.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application;
fig. 2 is a flowchart of a method for transmitting a channel state information report according to an embodiment of the present application;
fig. 3 is a functional block diagram of a channel state information report transmission device according to an embodiment of the present application;
fig. 4 is a functional block diagram of a channel state information report transmission device according to still another embodiment of the present application;
fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application.
Detailed Description
It should be understood that the terms "first," "second," and the like, as used in embodiments of the present application, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, software, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the embodiment of the application, "and/or" describes the association relation of the association objects, which means that three relations can exist. For example, a and/or B may represent three cases: a alone; both A and B are present; b alone. Wherein A, B can be singular or plural.
In the embodiment of the present application, the symbol "/" may indicate that the associated object is an or relationship. In addition, the symbol "/" may also denote a divisor, i.e. performing a division operation. For example, A/B may represent A divided by B.
"at least one" or the like in the embodiments of the present application means any combination of these items, including any combination of single item(s) or plural items(s), meaning one or more, and plural means two or more. For example, at least one (one) of a, b or c may represent the following seven cases: a, b, c, a and b, a and c, b and c, a, b and c. Wherein each of a, b, c may be an element or a set comprising one or more elements.
The 'equal' in the embodiment of the application can be used with the greater than the adopted technical scheme, can also be used with the lesser than the adopted technical scheme. When the combination is equal to or greater than the combination, the combination is not less than the combination; when the value is equal to or smaller than that used together, the value is not larger than that used together.
In the embodiments of the present application, "of", "corresponding", "indicated" may be used in a mixed manner. It should be noted that the meaning of what is meant is consistent when de-emphasizing the differences.
The "connection" in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way.
The "network" in the embodiment of the present application may be expressed as the same concept as the "system", i.e. the communication system is a communication network.
The "number" in the embodiment of the present application may be expressed as the same concept as the "number" or "number".
The report (report) in the embodiment of the present application may be expressed as the same concept as the report (report) or the feedback (feedback), etc. That is, the "CSI report" may be expressed as the same concept as "CSI report", "CSI feedback", and the like.
The "comprising" in embodiments of the application may be expressed as the same concept as "carrying" or "carrying". That is, the "CSI report inclusion information" may be expressed as the same concept as the "CSI report carrying information" and the "CSI report bearer information".
The "association" in the embodiments of the present application may be expressed as the same concept as "correspondence" or "mapping" or the like.
The following describes related content, concepts, meanings, technical problems, technical schemes, beneficial effects and the like related to the embodiment of the application.
1. Communication system, terminal device and network device
1. Communication system
The technical scheme of the embodiment of the application can be applied to various communication systems, such as: general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced Long Term Evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE-based Access to Unlicensed Spectrum on unlicensed spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum on unlicensed spectrum (NR-U) system, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wi-Fi), 6th Generation (6 th-Generation, 6G) communication system, or other communication system, etc.
It should be noted that, the number of connections supported by the conventional communication system is limited and easy to implement. However, with the development of communication technology, the communication system may support not only a conventional communication system, but also, for example, a device-to-device (D2D) communication, a machine-to-machine (machine to machine, M2M) communication, a machine type communication (machine type communication, MTC), an inter-vehicle (vehicle to vehicle, V2V) communication, an internet of vehicles (vehicle to everything, V2X) communication, a narrowband internet of things (narrow band internet of things, NB-IoT) communication, and the like, so the technical solution of the embodiment of the present application may also be applied to the above-described communication system.
In addition, the technical scheme of the embodiment of the application can be applied to beamforming (beamforming), carrier aggregation (carrier aggregation, CA), dual-connection (dual connectivity, DC), independent (SA) deployment scenarios and the like.
In the embodiment of the present application, the frequency spectrum used for communication between the terminal device and the network device, or the frequency spectrum used for communication between the terminal device and the terminal device may be an authorized frequency spectrum or an unauthorized frequency spectrum, which is not limited. In addition, unlicensed spectrum may be understood as shared spectrum, and licensed spectrum may be understood as unshared spectrum.
Since the embodiments of the present application are described in connection with terminal devices and network devices, the terminal devices and network devices involved will be specifically described below.
2. Terminal equipment
In the embodiment of the present application, the terminal device may be a device with a transceiver function, which may also be referred to as a terminal, a User Equipment (UE), a remote terminal device (remote UE), a relay device (relay UE), an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, a mobile device, a user terminal device, an intelligent terminal device, a wireless communication device, a user agent, or a user equipment. The relay device is a terminal device capable of providing a relay service to other terminal devices (including a remote terminal device).
In the embodiment of the application, the terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); may be deployed in the air (e.g., aircraft, balloons, satellites, etc.).
In the embodiment of the present application, the terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned automatic driving, a wireless terminal device in remote medical (remote medical) system, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), and the like.
In addition, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next generation communication system (e.g., NR communication system, 6G communication system) or a terminal device in a future evolved public land mobile communication network (public land mobile network, PLMN), etc., without being limited in particular.
In the embodiment of the application, the terminal equipment can comprise a device with a wireless communication function, such as a chip system, a chip and a chip module. By way of example, the system-on-chip may include a chip, and may include other discrete devices.
In an embodiment of the present application, the terminal device may include a compression processing module (e.g., an artificial intelligence (artificial intelligence, AI) module). The compression processing module can be used for compressing/decompressing the channel information and the like.
For example, the compression processing module may be a software unit and/or a hardware unit that performs information processing using an AI algorithm (e.g., a convolutional neural network algorithm, a deep neural network algorithm, etc.). In addition, the compression processing module may be a chip, a chip module, or the like.
3. Network equipment
In the embodiment of the application, the network equipment is equipment with a receiving and transmitting function and is used for communicating with the terminal equipment. For example, the network device may be responsible for radio resource management (radio resource management, RRM), quality of service (quality of service, qoS) management, data compression and encryption, data transceiving, etc. on the air side. The network device may be a Base Station (BS) in a communication system or a device deployed in a radio access network (radio access network, RAN) for providing wireless communication functions. For example, an evolved node B (evolutional node B, eNB or eNodeB) in the LTE communication system, a next generation evolved node B (next generation evolved node B, ng-eNB) in the NR communication system, a next generation node B (next generation node B, gNB) in the NR communication system, a Master Node (MN) in the dual connectivity architecture, a second node or Secondary Node (SN) in the dual connectivity architecture, and the like are not particularly limited thereto.
In the embodiment of the present application, the network device may also be a device in a Core Network (CN), such as an access and mobility management function (access and mobility management function, AMF), a user plane function (user plane function, UPF), etc.; but also Access Points (APs) in a wireless local area network (wireless local area network, WLAN), relay stations, communication devices in a future evolved PLMN network, communication devices in an NTN network, etc.
In the embodiment of the application, the network equipment can comprise a device with the function of providing wireless communication for the terminal equipment, such as a chip system, a chip and a chip module. The chip system may include a chip, for example, or may include other discrete devices.
In the embodiment of the application, the network equipment can comprise a compression processing module. The compression processing module can be used for compressing/decompressing the channel information and the like.
For example, the compression processing module may be a soft unit and/or a hardware unit that performs processing of information/data or the like using an AI algorithm (e.g., convolutional neural network algorithm, deep neural network algorithm, etc.). In addition, the compression processing module may be a chip, a chip module, or the like.
In embodiments of the present application, the network device may communicate with an internet protocol (Internet Protocol, IP) network. Such as the internet, a private IP network or other data network, etc.
In the embodiment of the application, the network device may be an independent node to implement the functions of the base station, or the network device may include two or more independent nodes to implement the functions of the base station. For example, network devices include Centralized Units (CUs) and Distributed Units (DUs), such as gNB-CUs and gNB-DUs. Further, in other embodiments of the application, the network device may further comprise an active antenna unit (active antenna unit, AAU). Wherein a CU implements a portion of the functions of the network device and a DU implements another portion of the functions of the network device. For example, a CU is responsible for handling non-real-time protocols and services, implementing the functions of a radio resource control (radio resource control, RRC) layer, a service data adaptation (service data adaptation protocol, SDAP) layer, and a packet data convergence (packet data convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (medium access control, MAC) and Physical (PHY) layers. In addition, the AAU can realize partial physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, in this network deployment, higher layer signaling (e.g., RRC signaling) may be considered to be transmitted by the DU or transmitted by both the DU and the AAU. It is understood that the network device may include at least one of CU, DU, AAU. In addition, the CU may be divided into network devices in the RAN, or may be divided into network devices in the core network, which is not particularly limited.
In the embodiment of the application, the network device may have a mobile characteristic, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (high elliptical orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.
In the embodiment of the application, the network equipment can provide service for the cell, and the terminal equipment in the cell can communicate with the network equipment through transmission resources (such as spectrum resources). The cells may be macro cells (macro cells), small cells (small cells), urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells), and the like.
4. Description of the examples
An exemplary description of a communication system according to an embodiment of the present application is provided below.
Exemplary, a network architecture of a communication system according to an embodiment of the present application may refer to fig. 1. As shown in fig. 1, communication system 10 may include a network device 110 and a terminal device 120. The network device 110 and the terminal device 120 may communicate wirelessly.
Fig. 1 is merely an illustration of a network architecture of a communication system, and the network architecture of the communication system according to the embodiment of the present application is not limited thereto. For example, in the embodiment of the present application, a server or other devices may be further included in the communication system. For another example, in an embodiment of the present application, a communication system may include a plurality of network devices and/or a plurality of terminal devices.
2. Channel matrix
1. Channel model
In a multiple-input multiple-output (Multiple Input Multiple Output, MIMO) system, where there are a antennas for the transmitter and b antennas for the receiver, the channel model of the MIMO channel can be expressed as:
r＝Hs+n 0 ；
wherein r is a received signal vector after passing through the MIMO channel; s is a transmitting signal vector of a transmitting end; h is a channel matrix for b×a order of MIMO channels; n is n 0 Is an additive noise vector.
In the precoding mode, the transmitter can optimize the spatial characteristics of the transmitted signal vector s in the precoding mode according to the channel matrix H, so that the spatial distribution characteristics of the transmitted signal vector s are matched with the channel matrix H, thereby effectively reducing the degree of dependence on the receiver algorithm and simplifying the receiver algorithm. Through precoding, the system performance can be effectively improved.
The precoding may employ linear or nonlinear methods. For reasons of complexity, etc., only linear precoding is generally considered in current wireless communication systems. After precoding, the channel model of the MIMO signal can be expressed as:
r＝HWs+n 0 ；
wherein W is a precoding matrix.
For MU-MIMO, the receiver cannot perform channel estimation on signals sent to other devices, so that the transmitter precoding can effectively suppress multi-user interference. It can be seen that it is beneficial for the system that the transmitter knows the channel matrix and processes it with the appropriate precoding.
In the precoding scheme, the precoding matrix W and the channel matrix H together determine an equivalent channel matrix (e.g., HW), and the equivalent channel matrix determines channel characteristics, and the like. In addition, in some cases, the precoding matrix W may be derived from the channel matrix H, for example, the precoding matrix W may be a matrix under a certain transformation of the channel matrix H.
2. Singular value decomposition (Singular Value Decomposition, SVD) of channel matrix H
The singular value decomposition of the channel matrix H may be:
H＝U∑V T ；
wherein u= [ U ] 1 ,u 2 ,…,u b ]For b×b order orthogonal matrix (orthogonal matrix) or unitary matrix, i.e. satisfying U T U＝I；
V＝[v 1 ,v 2 ,…,v a ]Is an orthonormal matrix or a unitary matrix of order a x a, i.e. satisfying V T V=i. The column vectors in V may be referred to as right-singular vectors (right-singular vectors) of the channel matrix H;
a diagonal matrix of order a x a, the elements on the diagonal being p=min (b, a) singular values σ of the channel matrix H 1 ,σ 2 ,...,σ p Arranging them in descending order, i.e. sigma 1 >σ 2 >...>σ p 。
3. Processing of channel matrix H
Transpose H of conjugate of channel matrix T Matrix multiplication is carried out on the channel matrix H to obtain a square matrix H with a multiplied by a order T H. Through square matrix H T H is subjected to feature decomposition, and the obtained feature values and feature vectors exist as follows:
(H T H)v i ＝λ i v i ,i∈[1,a]；
wherein lambda is i Representing square matrix H T Characteristic values of H; v i Representing square matrix H T H feature vector.
From h=u Σv T Available (H) T H)＝V∑ 2 V T 。
Thus H T The eigenvector of H also represents the column vector in V above. That is, H T All eigenvectors of H can form V as described above, and matrix H T The eigenvector of H may beRight singular vectors of channel matrix H.
4. Acquisition of channel matrix H
In the embodiment of the application, the terminal equipment performs channel measurement/evaluation/detection/estimation through the downlink reference signal to acquire the channel matrix H. The downlink reference signals may include channel state information reference signals (Channel State Information Reference Signal, CSI-RS), synchronization information blocks (SSBs), or physical broadcast channel demodulation reference signals (PBCH DMRS).
For example, the terminal device may perform downlink channel estimation/detection/estimation/measurement on the current channel according to the CSI-RS to acquire a channel matrix, thereby acquiring the channel matrix through the CSI-RS.
For another example, the terminal device may perform downlink channel measurement/estimation/detection/estimation on the current channel according to the SSB or PBCH DMRS to acquire the channel matrix, thereby acquiring the channel matrix through the SSB or PBCH DMRS.
3. Processes for CSI reporting (CSI reporting)
1. Configuration of CSI
Protocol standards established by 3GPP have been studied for CSI.
The CSI may be channel state information that the terminal device is configured to feed back downlink channel quality to the network device, that is, the terminal device may feed back downlink channel quality to the network device based on the CSI, so that the network device selects an appropriate modulation and coding strategy (Modulation and Coding Scheme, MCS) for downlink data transmission, reduces a Block Error Rate (BLER) of downlink data transmission, and performs corresponding beam management, mobility management, adaptation tracking, rate matching, and other processes.
The relevant configuration information for CSI may be defined by the high-level parameter CSI-MeasConfig. Wherein, CSI-MeasConfig may indicate or include two higher layer parameters: CSI resource configuration information (CSI-ResourceConfig) and CSI reporting configuration information (CSI-ReportConfig).
In addition, since CSI-ReportConfig would indicate or contain CSI-resourceconfgid, CSI-ReportConfig would be associated (mapped) by CSI-ResourceConfigId, CSI-ResourceConfig.
The CSI-ReportConfig is used for configuration of CSI reporting, i.e. configuring CSI reporting.
The CSI-ResourceConfig is used to configure CSI-RS resources for CSI measurement. In addition, the CSI-ResourceConfig may configure a set of resources (e.g., resourceSet), which may contain the most basic CSI-RS resources (e.g., CSI-RS-Resource).
The CSI-RS-Resource may indicate or include three of a NZP-CSI-RS Resource set (NZP-CSI-RS-Resource set), a CSI interference measurement (CSI Interference Measurement, CSI-IM) Resource set (CSI-IM-Resource set), and a SSB Resource set (CSI-SSB-Resource set).
NZP-CSI-RS-resource set can be used for channel measurement and/or interference measurement; CSI-IM-resource set may be used for interference measurements; CSI-SSB-resource set may be used for channel measurements.
The type of CSI-RS resources may be periodic, semi-persistent, or aperiodic.
The reporting configuration type (reportConfigType) in CSI-ReportConfig may be used to indicate the reporting type of CSI reporting. Wherein the CSI report may be transmitted through a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH).
2. CSI reporting
(1) Report type of CSI report
Report types of CSI reports may include: periodic (periodic) CSI reports, aperiodic (aperiodic) CSI reports, semi-persistent (semi-persistent on PUCCH) CSI reports carried on PUCCH, semi-persistent CSI reports carried on PUSCH.
Since the periodic CSI needs to be reported using the PUCCH, the periodic CSI report is carried by the PUCCH. Since aperiodic CSI needs to be reported using PUSCH, aperiodic CSI reports are carried by PUSCH.
For aperiodic CSI reports and semi-persistent CSI reports carried on PUSCH, the network device also configures the higher layer parameter TriggerState and the higher layer parameter reportTriggerSize for use with the CSI request field (CSI request field) in DCI (downlink control information, DCI).
Periodic CSI reporting
The periodic CSI-RS Resource and Report parameters are configured by RRC messages (or RRC signaling) and then immediately validated without activating or triggering CSI-RS transmissions and CSI reports by MAC-CE/DCI.
Semi-persistent CSI reporting carried on PUCCH
If the semi-persistent CSI-RS transmission is configured through the RRC message, the CSI-RS transmission is required to be activated through the MAC CE1, and then the CSI report is required to be activated through the MAC CE 2; if periodic CSI-RS transmission is configured through RRC message, CSI-RS transmission need not be activated through MAC CE1, but only CSI reporting need be activated through MAC CE 2.
Semi-persistent CSI reporting on PUSCH
If the semi-persistent CSI-RS transmission is configured through the RRC message, the CSI-RS transmission is required to be activated through the MAC CE1, and then the CSI report is triggered through the DCI; if periodic CSI-RS transmission is configured through an RRC message, the MAC CE1 is not required to activate the CSI-RS transmission, and only the CSI report is required to be triggered through DCI.
It should be noted that, for DCI, the DCI may be DCI format (format) 0_1 scrambled with SP-CSI-RNTI (semi-persistent CSI RNTI), and the CSI request field in the DCI may be associated with a corresponding trigger state (TriggerState) through a code point (codepoint) setting, where the TriggerState defines an associated CSI-ReportConfig, so that the CSI-ReportConfig associated with PUSCH upper semi-persistent CSI reporting may be found through the TriggerState.
Aperiodic CSI reporting
For the scenario of aperiodic CSI-RS transmission and aperiodic CSI reporting, both the aperiodic CSI-RS transmission and the aperiodic CSI reporting are triggered by DCI, the procedure of which is similar to the semi-persistent CSI reporting described above.
When the corresponding TriggerState is de-associated by the code point of the CSI request field in the DCI format 0_1/0_2, if the value of the CSI request field is 0, it indicates that the half-period CSI report is not required to be triggered, unlike the DCI trigger in the above-mentioned semi-persistent CSI report; if the CSI request field takes a value of 1, it indicates that the aperiodic CSI report associated with TriggerState 1 is triggered, and so on.
(2) Information type contained in CSI report
The CSI report may contain at least one of the following information: layer 1reference signal received power (layer 1reference signal received power,L1-RSRP), layer 1 signal-to-interference-and-noise ratio (L1-SINR), CSI-related (CSI-related) information, and the like.
Specifically, CSI-related (CSI-related) information may include at least one of the following information: CSI reference signal resource indication index (CSI-RS Resource Indicator, CRI), synchronization signal block resource indication index (SS/PBCH block resource indicator, SSBRI), rank Indicator (RI), precoding matrix indication index (precoding matrix indicator, PMI), channel quality indication index (channel quality indicator, CQI), layer indication index (LI), and the like.
Note that CRI (or SSBRI) may represent CSI-RS (or SSB) resources recommended (or selected) by the terminal device. Wherein one CSI-RS (or SSB) resource may represent one beam or antenna direction.
The RI may represent the number of layers recommended (or selected) by the terminal device, and the number of layers may determine which codebook. Wherein each layer number corresponds to a codebook, and a codebook is composed of one or more codewords. For example, a codebook with a layer number of 2 or a codebook with a layer number of 1.
The PMI may represent an index of a codeword in a codebook recommended (or selected) by the terminal device, or quantized precoding information. Wherein one codeword corresponds to one precoding matrix. The RI and PMI may collectively represent the number of layers and precoding matrix recommended by the terminal equipment.
The CQI may represent whether the terminal device feeds back the channel quality of the current channel to the network device. Wherein the terminal device needs to calculate CQI.
(3) CSI reporting on PUSCH
Standard protocols specified by 3GPP (e.g., NR R15/16/17) support Type I (Type I) CSI feedback (feedback), type II CSI feedback, enhanced Type II CSI feedback, further Enhanced Type II CSI feedback.
The basic principle of Type I CSI feedback is: the terminal device may match the codebook specified by the protocol with the estimated channel, select the codebook that matches the channel most, and then feed back the index corresponding to the codebook to the network device.
The basic principles of Type II CSI feedback, enhanced Type II CSI feedback and further enhanced Type II CSI feedback are as follows: and (3) performing certain processing on the estimated channel by adopting high-resolution CSI feedback, so that the processed information including amplitude and phase quantization and the like is fed back.
The CSI report on PUSCH supports Type I CSI feedback, type II CSI feedback, enhanced Type II CSI feedback, and further enhanced Type II CSI feedback.
For Type I CSI feedback, type II CSI feedback, enhanced Type II CSI feedback, and further enhanced Type II CSI feedback on PUSCH, one CSI report may consist of two parts (Part), namely Part 1 (Part 1) and Part 2 (Part 2).
The payload size (payload size) of part 1 is fixed and part 1 can be used to determine the number of information bits in part 2.
In addition, the content contained in the portion 1 and the portion 2 may be different in different cases. The method comprises the following steps:
feedback for Type ICSI: part 1 may contain RI (if reported), CRI (if reported), CQI of first codeword (if reported); part 2 may contain PMI (if reported), CQI of the second codeword when RI (if reported) is greater than 4 (if reported), LI (if reported).
For Type IICSI feedback: part 1 may contain an indication of the number of non-zero wideband amplitude coefficients (non-zero wideband amplitude coefficient) per layer of RI (if reported), CQI, type IICSI. Wherein the fields of part 1 (RI, CQI, indication of the number of non-zero wideband amplitude coefficients per layer) are coded separately. Part 2 may contain PMI, LI (if reported) of Type II CSI. Wherein part 1 and part 2 are encoded separately.
For enhanced Type II CSI feedback: part 1 may contain an indication of the total number of non-zero magnitude coefficients for all layers of RI (if reported), CQI, enhanced Type II CSI. Wherein the fields of part 1 (RI, CQI, indication of the total number of non-zero amplitude coefficients) are coded separately. Part 2 may contain PMI that enhances Type II CSI. Wherein part 1 and part 2 may be encoded separately.
It should be noted that, for details of content/concept/definition/explanation in "(3) CSI report on PUSCH", reference may be made to corresponding sections in standard protocol 38.214, which is not particularly limited. In addition, "(3) related contents/concepts/definitions/interpretations in CSI report on PUSCH" may also be adapted with modification/variation of standard protocol 38.214. The modified content can also be derived/obtained by those skilled in the art in combination with (3) related content/concepts/definitions/interpretations in CSI report on PUSCH. Therefore, the modified content is also within the scope of the application as claimed, and will not be repeated.
(4) Priority of CSI reports
A CSI report is associated with a priority value Pri CSI (y,k,c,s)：
Pri CSI (y,k,c,s)＝2·N cells ·M s ·y+N cells ·M s ·k+M s C+s; wherein,,
-for aperiodic CSI reports scheduled to be carried on PUSCH, the value of y may be 0; for scheduled bearers on PUSCH
The value of y can be 1 for the semi-continuous CSI report; for a semi-persistent CSI report scheduled to be carried on PUCCH, the value of y may be 2; for periodic CSI reports scheduled to be carried on PUCCH, the value of y may be 3; etc.
The value of k may be determined by the type of information contained in the CSI report indicated by the information in CSI-ReportConfig (e.g., reportquality).
For example, for a CSI report containing (carry/bearer) L1-RSRP or L1-SINR, the value of k may be 0; for CSI reports that do not contain (carry/bear) L1-RSRP or L1-SINR, the value of k may be 1; etc.
-c may be a serving cell index value (serving cell index).
The value of s may be the value of reportConfigID in CSI-ReportConfig.
-N cells The value of (2) may be the value of the higher-layer parameter maxNrofServingCells.
-M s The value of (c) may be the value of the higher layer parameter maxNrofCSI-ReportConfigurations.
Note that, the name of the maximum number of serving cells specified in the 5G standard is maxNrofServingCells, CSI, the name of the maximum number of configurations reported by reportConfigID, CSI is maxnrofcsirinoteconfigurations, but the names specified in other standards with the same meaning are equally applicable to the present application, that is, the present application is not limited to the names of these parameters.
Since a CSI report is associated with a priority value, if a CSI report is associated with a priority value Pri CSI (y, k, c, s) is less than the priority value Pri associated with another CSI report CSI (y, k, c, s), the priority of the CSI report is higher than the priority of the other CSI report.
If two CSI reports are transmitted on the same carrier and at least one OFDM symbol (symbol) overlaps each other in the time domain, the two CSI reports have a collision (collide) at the time of transmission.
When a terminal device is configured to transmit two CSI reports for which there is a collision,
-if the values of y between the two CSI reports are different, and except for the case where one y has a value of 2 and the other y has a value of 3, the following rule applies:
the terminal device does not transmit priority value Pri CSI (y, k, c, s) higher CSI reports;
otherwise, the two CSI reports may be multiplexed or discarded based on a priority value.
It should be noted that, the relevant content/concept/definition/explanation in the "(4) priority of CSI report" may be described in detail in the corresponding section in the standard protocol 38.214, which is not limited in particular. In addition, the related contents/concepts/definitions/interpretations in "(4) priority of CSI report" may also be adapted with the modification/variation of the standard protocol 38.214. The modified content can also be derived/obtained by a person skilled in the art in connection with "(4) priority of CSI reports" related content/concept/definition/interpretation etc. Therefore, the modified content is also within the scope of the application as claimed, and will not be repeated.
(5) CSI report occupied (logged) CSI processing unit (CSI processing unit, CPU)
(1) Meaning of
In one component carrier (Component Carrier, CC), the terminal device can indicate the number of simultaneous CSI calculations (simultaneous CSI calculation), N, supported by itself through the higher layer parameters simultaneousCSI-reportsPerCC CPU The method comprises the steps of carrying out a first treatment on the surface of the In all component carriers, the terminal device can indicate the number of simultaneous CSI calculations supported by itself through the higher layer parameter simultaneousCSI-reportsall cc, N CPU 。
If the terminal equipment supports simultaneous CSI calculation, the terminal equipment is said to have N for processing the CSI report CPU And a CPU.
It should be noted that, the CPU occupied by the CSI report may characterize the capability of the terminal device to process CSI. N (N) CPU It is understood that the maximum number or total number of CPUs supported by the terminal device. In addition, N CPU The network device may be notified by the terminal device via higher layer parameters, such as simultaneousCSI-ReportsPerCC and/or simultaneousCSI-reportsjcc.
If the computation of CSI in a given OFDM symbol already takes up L CPUs, the terminal device has N CPU -an unoccupied CPU.
At N CPU Of the unoccupied CPUs, if N CSI reports occupy their respective CPUs sequentially on the same OFDM symbol, and the number of occupied CPUs of the nth (n=0, …, N-1) CSI report is The terminal device does not need to update (update) N-M 1 CSI reports with low priority, M 1 (0≤M 1 N) is ≡n ≡>The maximum value established.
For example, the network device configures 3 CSI reports to the terminal device, CSI report 0, CSI report 1 and CSI report 2, respectively. Among the priorities corresponding to the 3 CSI reports, the priority of CSI report 0 is higher than the priority of CSI report 1, and the priority of CSI report 1 is higher than the priority of CSI report 2. In case the terminal device has 10 unoccupied CPUs, if CSI report 0 occupies 5 CPUs (i.e) CSI report 1 occupies 3 CPUs (i.e., +.>) CSI report 2 occupies 5 CPUs (i.e., +.>) Then due to 5+3+5>10, so the terminal device does not need to update CSI report 2.
(2) Number of CPUs occupied by one CSI report
Number of CPUs occupied by one CSI report O CPU The following may be present:
if the higher layer parameter reportquality in CSI-ReportConfig is set to 'none' and higher layer parameter trs-Info is configured in CSI-RS-resource set, O CPU =0. That is, the number of CPUs occupied by CSI report is 0.
If the higher layer parameter reportquality in CSI-ReportConfig is set to 'cri-RSRP', 'ssb-Index-RSRP', 'cri-SINR', 'ssb-Index-SINR', or 'none' (when CSI-RS-resource set is not configured with higher layer parameter trs-Info), O CPU =1. That is, the number of CPUs occupied for CSI reporting is 1.
If the higher-layer parameter reportquality in CSI-ReportConfig is set to 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', 'cri-RI-CQI', or 'cri-RI-LI-PMI-CQI', then:
-if max (μ) PDCCH ,μ CSI-RS ,μ UL ) < 3, one CSI report is triggered aperiodically, l=0 CPUs are occupied, the terminal device does not transmit PUSCH with transport blocks (or HARQ-ACKs or both), and the CSI corresponds to a single CSI with wideband frequency granularity and to a maximum of 4 CSI-RS ports in a single resource, where codebook type is set to 'typeI-single quality' or reportquality is set to 'cri-RI-CQI', then O CPU ＝ CPU . That is, the number of CPUs occupied by the CSI report is the total number of CPUs reported by the terminal device. Wherein mu PDCCH Subcarrier spacing, μ of PDCCH corresponding to transmission DCI UL Subcarrier spacing, mu, of PUSCH corresponding to carrying CSI CSI-RS Subcarrier spacing of the aperiodic CSI-RS triggered by the corresponding DCI.
-if the codebook type in CSI-ReportConfig corresponding to one CSI report is set to 'typeI-SinglePanel' and the corresponding CSI-RS resource set for channel measurement is configured with 2 resource groups, consisting of N resource pairs, M resources for single site transmission assumption, O CPU =2n+m. That is, the number of CPUs occupied for CSI reporting is 2n+m.
Otherwise, O CPU ＝K s ，K s Is the number of NZP-CSI-RS resources (which may also be referred to as channel measurement resources) in the NZP-CSI-RS-resource set for channel measurement. That is, the number of CPUs occupied by the CSI report is the number of channel measurement resources associated with the CSI report.
(3) Number of OFDM symbols occupied by CPU
For CSI reports for which the higher layer parameter reportquality in CSI-ReportConfig is not set to 'none', the number of OFDM symbols occupied by the CPU that the CSI report occupies may be as follows:
the OFDM symbols occupied by the CPU occupied by the periodic CSI report or the semi-persistent CSI report (excluding the first (initial) semi-persistent CSI report on PUSCH after the PDCCH trigger report) are:
starting from the first symbol of the earliest one of the CSI-RS/CSI-IM/SSB resources used for channel measurement or interference measurement, and the CSI-RS/CSI-IM/SSB opportunity of the respectively nearest (last) is no later than the corresponding CSI reference resource until the last symbol of the reporting resource, wherein the reporting resource is PUSCH/PUCCH for carrying the periodic CSI report or the semi-persistent CSI report.
-the OFDM symbols occupied by the CPU occupied by the aperiodic CSI report are:
Starting from the first symbol after the PDCCH triggering the aperiodic CSI report, and until the last symbol of a reporting resource, wherein the reporting resource is a PUSCH used for bearing the aperiodic CSI report.
-the OFDM symbols occupied by the CPU occupied by the first semi-persistent CSI report on PUSCH after the reporting triggered by PDCCH are:
starting from the first symbol after the PDCCH until the last symbol of the reporting resource, wherein the reporting resource is PUSCH for carrying the first semi-persistent CSI report.
For CSI reports with the higher layer parameters reportquality set to 'none' and CSI-RS-resources set not configured with higher layer parameters trs-Info, the number of OFDM symbols occupied by the CPU that the CSI report occupies may be as follows:
the OFDM symbols occupied by the CPU occupied by the semi-persistent CSI report (excluding the first (initial) semi-persistent CSI report on PUSCH after the PDCCH trigger report) are:
starting from the first symbol of the earliest (earliest) one of each transmission occasion (transmission occasion) of periodic or semi-persistent CSI-RS/SSB resources for the channel measurements for the L1-RSRP computation, until Z 'after the last symbol of the latest (last) one of the CSI-RS/SSB resources for the channel measurements for the L1-RSRP computation in each transmission occasion' 3 And a symbol.
-the OFDM symbols occupied by the CPU occupied by the aperiodic CSI report are:
the first after the PDCCH triggering the CSI reportZ after one symbol to the first symbol after PDCCH triggering the CSI report 3 Z 'after each symbol and measurement resource' 3 The last symbol between the individual symbols; wherein the measurement resource is the most recent (last) one of the CSI-RS/SSB resources for channel measurement for L1-RSRP calculation.
It should be noted that, the relevant content/concept/definition/explanation in the CPU "occupied by the" (5) CSI report may be described in detail in the corresponding section in the standard protocol 38.214, which is not limited in particular. In addition, "(5) relevant contents/concepts/definitions/interpretations in the CPU occupied by CSI report" may also be adapted with the modification/variation of the standard protocol 38.214. The modified content can also be derived/obtained by the person skilled in the art in connection with "(5) related content/concepts/definitions/interpretations in the CPU" occupied by CSI reports. Therefore, the modified content is also within the scope of the application as claimed, and will not be repeated.
(6) CSI calculation time requirement of CSI report (CSI computation time requirement)
When the CSI request field on DCI triggers CSI reporting on PUSCH, if the start time of the first uplink symbol for carrying CSI reporting (including the effect of time advance) is not earlier than symbol Z ref And the start time of the first uplink symbol for carrying the nth CSI report (including the effect of the time advance) is no earlier than symbol Z' ref (n), the terminal device may provide a valid CSI report for the nth triggered report.
Wherein Z is ref Defined as the next uplink symbol whose Cyclic Prefix (CP) is t= (Z) (2048+144) ·k2 after the end of the last symbol of PDCCH triggering the CSI report -μ ·T C +T switch Starting.
Wherein Z' ref (n) is defined as the next uplink symbol whose CP is T '= (Z') (2048+144) ·k2 after the end of the last symbol of the measurement resource -μ ·T C Initially, the measurement resource is an aperiodic CSI-RS resource for channel measurement (when aperiodic CSI-RSChannel measurement time for the nth triggered CSI report), aperiodic CSI-IM for interference measurement, aperiodic NZP CSI-RS for interference measurement.
When the CSI request field on DCI triggers CSI reporting on PUSCH, if the start time of the first uplink symbol for carrying CSI reporting (including time advance effect) is earlier than symbol Z ref Then:
-if no HARQ-ACK or transport block is multiplexed on the PUSCH, the terminal device may ignore the DCI. That is, the terminal device may not report the CSI report triggered by the DCI.
When the CSI request field on DCI triggers CSI reporting on PUSCH, if the start time of the first uplink symbol for carrying the nth CSI report (including time advance effect) is earlier than symbol Z' ref (n), then:
if the number of triggered CSI reports is 1 and no HARQ-ACKs or transport blocks are multiplexed on PUSCH, the terminal device may ignore the DCI.
Otherwise, the terminal device does not need to update CSI for the nth triggered CSI report.
Definition of Z and Z
In the embodiment of the application, the CSI calculation time requirement of the CSI report can be determined according to (Z, Z'). Wherein z=max m＝0,…,M-1 (Z(m))，Z′＝max m＝0,…,M-1 (Z' (m)) is the number of updated CSI reports.
(Z (m), Z' (m)) corresponds to the m-th updated CSI report, and may be specifically defined as follows:
-if max (μ) PDCCH ,μ CSI-RS ,μ UL ) < 3, one CSI report is aperiodically triggered, l=0 CPUs are occupied, the terminal device does not transmit PUSCH with a transport block (or HARQ-ACK or both), and the CSI corresponds to single CSI with wideband frequency granularity and corresponds to up to 4 CSI-RS ports in a single resource, wherein codebook type is set to ' typeI-single panel ' or reportquality is set to ' cri-RI-CQI ', then (Z (m), Z ' (m)) can be defined as (Z) of table 1 1 ,Z′ 1 ). Or,
table 1 CSI calculation time requirement 1
Wherein μ is a subcarrier spacing configuration and corresponds to min (μ PDCCH ,μ CSI-RS ,μ UL ). Wherein mu PDCCH Subcarrier spacing, μ of PDCCH corresponding to transmission DCI UL Subcarrier spacing, mu, of PUSCH corresponding to carrying CSI CSI-RS Subcarrier spacing of the aperiodic CSI-RS triggered by the corresponding DCI.
If the CSI to be transmitted corresponds to wideband frequency granularity and to a maximum of 4 CSI-RS ports in a single resource, with codebook type set to ' typeI-SinglePanel ' or reportquality set to ' cri-RI-CQI ', then (Z (m), Z ' (m)) can be defined as (Z) of table 2 1 ,Z′ 1 ). Or,
table 2 CSI calculation time requirement 2
Wherein μ is a subcarrier spacing configuration and corresponds to min (μ PDCCH ,μ CSI-RS ,μ UL )。
If the transmitted CSI corresponds to wideband frequency granularity, with reportquality set to ' ssb-Index-SINR ' or ' cri-SINR ', then (Z (m), Z ' (m)) may be defined as (Z) of table 2 1 ,Z′ 1 ). Or,
if the reportquality is set to ' cri-RSRP ' or ' ssb-Index-RSRP ', then (Z (m), Z ' (m)) can be defined as (Z) of table 2 3 ,Z′ 3 ). Wherein X is μ Is determined according to beam reporting time (beamReportTiming) capability reported by the terminal device, KB l Is determined based on beam switch time (beamSwitchTiming) capabilities reported by the terminal device. Or,
Otherwise, (Z (m), Z' (m)) may be defined as (Z) of Table 2 2 ,Z′ 2 )。
Note that, the relevant content/concept/definition/explanation in the CSI calculation time requirement "of the" (6) CSI report "may be described in detail in the corresponding section of the standard protocol 38.214, which is not limited in particular. In addition, the relevant content/concept/definition/interpretation in "(6) CSI calculation time requirement of CSI report" may also be adapted as the standard protocol 38.214 is modified/changed. The modified content can also be derived/obtained by those skilled in the art in combination with the related content/concepts/definitions/interpretations in "(6) CSI computation time requirement" for CSI reporting. Therefore, the modified content is also within the scope of the application as claimed, and will not be repeated.
4. Introducing compression processing in the course of CSI computation
As a possible application scenario, the present application may introduce compression processing in the CSI calculation process, i.e. CSI feedback supporting compression processing.
It should be noted that the present application may implement the compression process introduced in the CSI calculation process in various manners.
For example, the application realizes the introduction of compression processing in the process of CSI calculation through an AI algorithm so as to improve the corresponding precision and the like. The AI algorithm can establish a solution mode of some complex problems through training of a large amount of data, has the capability of processing a large amount of complex information, high processing precision and the like, and can effectively solve some problems which are difficult to solve by adopting a traditional modeling mode, such as some nonlinear problems, parameters which are too complex and the like. Among them, the AI algorithm may include Machine Learning (ML), deep Learning (DL), and the like.
In combination with the content in the above-mentioned "three, CSI reporting" process, because the channel information obtained by the terminal device through channel measurement may have the characteristics of large bit number, and the like, and the channel information is directly fed back through CSI reporting, which will cause the problems of more occupied resources, large signaling overhead, and the like, a mode of not directly feeding back the channel information is generally adopted, and the channel information needs to be correspondingly processed to obtain CSI related information (such as RI, PMI, and the like), and then CSI related information, that is, CSI feedback based on a codebook, is fed back.
However, in the case of introducing compression processing in the CSI calculation process, the terminal device in the embodiment of the present application may perform compression processing on the channel information through the compression processing module (e.g., AI module), and feedback (or report) the channel information after the compression processing. Compared with the CSI feedback based on the codebook, the channel information after compression processing has the characteristics of smaller bit quantity, higher precision and the like, so that occupied resources are fewer, signaling overhead is low, precision is high and the like.
In addition, in some scenarios, the compressed channel information may have a larger amount of information (i.e., the compressed channel information may have a higher accuracy) than the codebook-based CSI feedback, such as amplitude information.
In the above-mentioned "three-CSI reporting process", the embodiment of the present application introduces the type of information included in the CSI report, the CSI report on PUSCH, the priority of the CSI report, the CPU occupied by the CSI report, the CSI calculation time requirement of the CPU report, and the like, without introducing compression processing.
In combination with the foregoing, the following embodiments of the present application will specifically describe the type of information included in the CSI report, the CSI report on the PUSCH, the priority of the CSI report, the CPU occupied by the CSI report, the CSI calculation time requirement of the CPU report, and other related contents when the compression process is introduced.
1. Channel information, compression information, configuration information, first CSI report, and second CSI report
(1) Channel information
It should be noted that the channel information may characterize the channel characteristics/properties.
In combination with the content in the "two, channel matrix", the channel information in the embodiment of the present application may include at least one of the following: channel matrix H, equivalent channel matrix, precoding matrix W (precoding matrix W can be derived from channel matrix H), right singular vector V of channel matrix H, square matrix H T Characteristic vector v of H i (conjugate transpose of channel matrix H) T Eigenvectors of the matrix obtained by multiplying the channel matrix H ) A vector associated with the channel matrix H (e.g., a vector of the channel matrix H under some deformation, etc.), etc.
In addition, in some possible implementations, the channel information may further include time domain information of a channel, channel information of a delay-doppler (delay-doppler) domain, and the like, which is not particularly limited.
In combination with the content of "4, acquisition of channel matrix H" above, in some possible implementations, the channel information may be obtained by performing channel measurement/estimation/detection/estimation by using a downlink reference signal.
(2) Compressing information
Because the channel information may have the characteristics of larger bit number and the like, and the channel information is directly fed back, the problems of more occupied resources, large signaling overhead and the like are caused, and therefore, a mode of not directly feeding back the channel information is generally adopted. In order to reduce occupied resources, signaling overhead and the like, the embodiment of the application adopts a mode of compressing channel information, so that the compressed channel information (namely compressed information) has the characteristics of smaller bit number and the like.
In the embodiment of the present application, the compressed information may be information after the channel information is compressed. The compression processing of the channel information may include at least one of compression, quantization, encoding, and the like.
In some possible implementations, the terminal device of the embodiment of the application can utilize the compression processing module to perform compression processing on the channel information, and the compressed channel information has the characteristics of smaller bit number, higher precision and the like, so that occupied resources are less, signaling overhead is small, precision is high and the like.
In addition, the compression processing module may be a software unit and/or a hardware unit that performs information processing using an AI model/AI algorithm (e.g., convolutional neural network algorithm, deep neural network algorithm, etc.).
For example, the terminal device may input channel information into the AI module to obtain compressed information. That is, the compressed information is information after the channel information is compressed by the AI module, so that the AI module has the capability of processing a large amount of complex information/data, the capability of processing high precision, and the like, thereby realizing the compression of the channel information, ensuring the precision of the compressed information, and the like.
Thus, in the embodiment of the present application, "compressed information" may be regarded as information after compression processing. "channel information" can be regarded as information before compression processing. Taking the compression of the channel information by the AI module as an example, the compressed information can be understood as the output information of the AI module; the channel information can be understood as input information of the AI module.
Of course, in the embodiment of the present application, the terminal device may also compress the channel information in other manners to obtain compressed information.
For example, the other method may be a lossy compression method, a lossless compression method, or the like. Among these, lossy compression is mainly some quantization algorithms, such as optimal quantization of a-rate, u-rate, laud (lloyds), etc. Lossless compression is mainly some coding algorithms, such as subband coding, differential coding, huffman coding, etc.
In some possible implementations, the terminal device may perform channel measurement through the downlink reference signal to obtain channel information, perform compression processing on the channel information to obtain compressed information, and report the compressed information to the network device through the CSI report. Correspondingly, the network device may perform a corresponding decompression process on the compressed information to obtain the channel information.
For example, taking compression processing by using an AI module as an example, the terminal device performs channel measurement through CSI-RS to obtain channel information, inputs the channel information into the AI module to compress to obtain compressed information, and sends the compressed information to the network device through PUSCH or PUCCH. Correspondingly, the network device decompresses the compressed information input AI module to obtain the channel information. For another example, taking compression processing by using an AI module as an example, the terminal device performs channel measurement through CSI-RS to obtain channel information, inputs the channel information into the AI module for compression, performs quantization, encoding and other processing to obtain compressed information, and finally sends the compressed information to the network device through PUSCH or PUCCH. Correspondingly, the network device performs corresponding decoding, dequantization and other processes on the compressed information, and inputs the compressed information into the AI module for decompression to obtain the channel information.
(3) Configuration information
(1) Definition of the definition
In the embodiment of the application, the network device can determine the CSI report containing (carrying) the compressed information through the configuration information, so as to inform (notify/instruct/require, etc.) the terminal device that the CSI report should contain the compressed information by means of network configuration.
For example, the configuration information may be used to determine CSI reports that contain the compression information. Alternatively, the configuration information may be used to indicate that the CSI report contains compressed information. Alternatively, the configuration information is used to indicate the type of information contained in the CSI report. For example, the information types included in the CSI report include information type 1 and information type 2, the CSI report of information type 1 includes compression information, and the CSI report of information type 2 does not include compression information, in which case the configuration information is used to indicate information type 1, and the description configuration information indicates that the CSI report includes compression information. Of course, the embodiment of the present application may also describe configuration information for determining CSI reports containing compressed information in other manners, which is not limited thereto.
Of course, the configuration information may also be described by other terms, such as indication information, first information, etc., and only have the same meaning/function/explanation/concept, etc., which are not specifically limited in scope according to the embodiments of the present application.
In some possible implementations, the configuration information may also be used to configure CSI reports and/or CSI resources.
For example, in combination with the content in "1, configuration of CSI" described above, the configuration information may include CSI-MeasConfig, CSI-ReportConfig or CSI-ResourceConfig. Wherein CSI-ReportConfig may be associated (e.g., mapped to, etc.) with CSI-ResourceConfig.
(3) Transmission of configuration information
In the embodiment of the application, the configuration information can be transmitted in the processes of cell search, cell reselection, uplink and downlink synchronization, cell access, cell residence, initial access, uplink and downlink resource scheduling and the like.
In some possible implementations, the configuration information may be carried by System Information (SI), higher layer signaling (e.g., RRC signaling), or terminal device specific signaling, etc.
(4) Information type contained in configuration information
First indication information
In some possible implementations, determining CSI reports containing (carrying) compressed information by configuration information may be implemented by:
the configuration information may include first indication information for indicating that the CSI report includes compression information. Thereby realizing that the network equipment indicates (configures) to the terminal that the CSI report needs to contain compressed information in the CSI feedback process. In this regard, the terminal device needs to perform compression processing on the channel information to obtain compressed information, and feedback the compressed information.
For example, the first indication information may be located in CSI-ReportConfig of the configuration information.
For example, the network device may indicate to the terminal device that the CSI report contains compressed information by the first indication information in the CSI-ReportConfig.
Of course, the first indication information may be described by other terms, and only have the same meaning/function/explanation/concept, etc., which are not particularly limited in scope of the embodiments of the present application.
First length information (optional)
In some possible implementations, the network device may indicate the length of the channel information to the terminal device through the first length information, so as to facilitate the terminal device to acquire or use. That is, the first length information may be used to indicate the length of the channel information.
This is because the channel information has a certain length (e.g., the length of the channel matrix (the length of the channel matrix may be determined by the dimensions of the channel matrix), the length of the vector associated with the channel matrix, etc.), so that the network device facilitates the acquisition or use of the terminal device by indicating (configuring) the length of the signal information acquired by the terminal device in configuring the CSI feedback process based on the compression process to the terminal device.
For example, the network device may indicate the length of the channel information (or the information length before compression processing or the input information length of the AI module) to the terminal device through CSI-ReportConfig.
Of course, the first length information may be described by other terms, and only have the same meaning/function/explanation/concept, etc., which are not particularly limited in scope of the embodiments of the present application.
In general, the length of the signal information indicated by the network device needs to conform to the reporting capability of the terminal device.
Thus, in some possible implementations, the first length information may be determined by terminal capability information reported by the terminal device. Wherein the terminal capability information may include lengths of a plurality of channel information.
It can be appreciated that in the process that the terminal device reports its own capability to the network device, the terminal device may report the lengths of the plurality of channel information. The network device may then select one from the lengths of the plurality of channel information and then indicate to the terminal device in the configuration process of the CSI report.
Second length information (optional)
In some possible implementations, the network device may indicate the length of the compressed information to the terminal device through the second length information, so as to be convenient for the terminal device to acquire or use. That is, the second length information may be used to indicate the length of the compressed information.
This is because the compressed information has a certain length, and thus the network device can indicate (configure) the length of the compressed information required by the terminal device in configuring the CSI feedback process based on the compression process to the terminal device, so that the terminal device can acquire or use the compressed information.
For example, the network device may indicate the length of the compressed information (or the information length after the compression process or the output information length of the AI module) to the terminal device through CSI-ReportConfig.
Of course, the second length information may be described by other terms, and only have the same meaning/function/explanation/concept, etc., which are not particularly limited in scope as claimed in the embodiments of the present application.
In addition, the length of the compressed information indicated by the network device needs to conform to the reporting capability of the terminal device.
Thus, in some possible implementations, the second length information may be determined by terminal capability information reported by the terminal device. Wherein the terminal capability information may include lengths of a plurality of compressed information.
It can be appreciated that in the process that the terminal device reports its own capability to the network device, the terminal device may report the lengths of a plurality of compressed information. The network device may then select one from the lengths of the plurality of compressed information and then instruct the terminal device in configuring the CSI feedback process based on the compression process.
In addition, in some possible implementations, the standard protocol may specify an association (correspondence/mapping) relationship between the first length information and the second length information. The association may be pre-configured, network configured, or protocol defined. In a specific implementation, the network device may only indicate (configure) the first length information (or the second length information), so that the first length information and the second length information are configured simultaneously through the association relationship, which is further beneficial to reducing signaling overhead and the like.
Correspondingly, in the terminal capability information, the embodiment of the application can also establish an association (correspondence/mapping) relation between the lengths of the plurality of channel information and the lengths of the plurality of compressed information. The association may be pre-configured, network configured, or protocol defined. In specific implementation, the terminal device may only report lengths of multiple channel information (or lengths of multiple compressed information), so that simultaneous reporting of lengths of multiple channel information and lengths of multiple compressed information is achieved through the association relationship, which is further beneficial to reducing signaling overhead and the like.
Receive antenna quantity information (optional)
In some possible implementations, in the process that the terminal device reports its own capability to the network device, the terminal device may report its own total number of receiving antennas to the network device through the information of the number of receiving antennas, so as to be convenient for the network device to learn or refer to. That is, the reception antenna number information may be used to indicate the number of reception antennas required for the terminal device to acquire the channel information.
Since the dimension (e.g., bxa) of the channel matrix H in the channel information is formed by the number of transmitting antennas (e.g., a) of the network device and the number of receiving antennas (e.g., a) of the terminal device, the network device indicates (configures) to the terminal device the number of receiving antennas (e.g., b) that need to be used when the terminal device acquires the signal information. Typically, the number of receiving antennas indicated by the network device is less than or equal to the total number of receiving antennas reported by the terminal device.
For example, the terminal device reports itself to the network device that there are 4 receive antennas. The network device may then indicate to the terminal device that 2 receive antennas are needed to acquire channel information through CSI-ReportConfig.
Of course, the number of receiving antennas may be described by other terms, and only have the same meaning/function/explanation/concept, etc., which are not particularly limited in the scope of the embodiments of the present application.
In summary, the configuration information may include at least one of the following: first indication information, first length information, second length information, and receiving antenna number information.
(4) First and second CSI reports
Since the embodiments of the present application need to discuss CSI reporting under CSI feedback based on compression processing, for convenience of distinction, the embodiments of the present application refer to CSI reporting under CSI feedback based on compression processing (i.e., CSI reporting based on compression processing) as "first CSI reporting" and CSI reporting under CSI feedback not based on compression processing as "second CSI reporting".
That is, the first CSI report is a CSI report containing compressed information, i.e., the embodiment of the present application mainly discusses the first CSI report in "four, introducing compression processing in the process of CSI calculation".
The second CSI report is a CSI report that does not contain compressed information, i.e., the second CSI report is mainly discussed in the "three, CSI reporting" procedure.
2. Reporting type of CSI report under CSI feedback based on compression processing
Consistent with the content in the report type of "(1) CSI report" described above, the CSI report based on the compression processing may include: periodic CSI reports, aperiodic CSI reports, semi-persistent CSI reports carried on PUCCH, semi-persistent CSI reports carried on PUSCH, which are not described in detail.
3. Under the CSI feedback based on compression processing, the information type contained in the CSI report
(1) Compressing information
In the embodiment of the application, the channel information is required to be compressed by compression processing to obtain the compressed information, so that in the CSI feedback process, in order to save signaling and resource expenditure, the CSI report based on the compression processing can only contain the compressed information.
At this time, the network device needs to process the compressed information through compression processing to obtain channel information, and then determine CSI related information (such as RI, PMI, etc.) through the channel information.
(2) Interference measurement result information (optional)
In some possible implementations, since the compressed information relates only to relevant channel measurements, the CSI report based on the compressed processing may also contain interference measurement information in order to ensure that the network device is able to learn about relevant interference measurements. Wherein the interference measurement information may be used to indicate interference measurements. For example, the interference measurement information may include at least one of CSI-IM (i.e., CSI interference measurement signal/resource) based interference measurement information, NZP-CSI-RS based interference measurement.
In some possible implementations, the interference measurement may be obtained by the terminal device through NZP-CSI-RS-resource eset and/or CSI-IM-resource eset.
(3) L1-RSRP (optional)
The compressed CSI report may further include L1-RSRP, in accordance with the information type "included in the" (2) CSI report.
(4) L1-SINR (optional)
The compressed CSI report may also include L1-SINR, consistent with the information type "included in the" (2) CSI report.
(5) CSI related information (optional)
The CSI report based on the compression processing may further include CSI-related information, in accordance with the information type "included in the" (2) CSI report. Wherein, the CSI-related information may include at least one of the following information: CRI, SSBRI, RI, PMI, CQI, LI, etc.
(6) Second indication information (optional)
In some possible implementations, the terminal device may indicate relevant features (relevant characteristics/relevant formats, etc.) of the compressed information to the network device through the second indication information, so that the network device decompresses the compressed information according to the relevant features of the compressed information to ensure that the channel information is obtained more accurately. That is, the second indication information may be used to indicate the relevant characteristics of the compressed information.
In combination with the content in the information type "included in the above" (4) configuration information, the network device may indicate (configure) the length of compressed information and/or the length of channel information, etc. required for the terminal device, or may not indicate.
In addition, in some implementations, the network device may indicate to the terminal device the length of the plurality of compressed information and/or the length of the channel information, from which the terminal device may select one.
However, in some possible implementations, the terminal device may not process as indicated by the network device, i.e., the length of the channel information and/or the length of the compressed information acquired by the terminal device may be different from or not indicated by the network device. In this regard, the terminal device reports relevant features (relevant characteristics/relevant formats, etc.) of the compressed information to the network device, which is helpful for the network device to decompress the compressed information according to the relevant features of the compressed information, so as to ensure that the obtained channel information is more accurate.
Of course, the second instruction information may be described by other terms, and only have the same meaning/function/explanation/concept, etc., which are not particularly limited in scope of the embodiments of the present application.
In addition, the relevant characteristics of the compressed information may represent information characteristics of the compressed information before and after the compression process.
Of course, the relevant features of the compressed information may be described in other terms, only having the same meaning/function/explanation/concept, etc., and are not particularly limited in scope by the embodiments of the present application.
For example, the relevant characteristics of the compressed information may include at least one of: the length of the channel information, the length of the compressed information, the location of the compressed information in the AI module, etc.
It should be noted that, since the AI module may be composed of multiple layers (such as a convolution layer, a pooling layer, etc.), the position of the compressed information in the AI module may indicate which layer of the AI module the compressed information is output from.
In summary, the CSI report based on the compression processing may include at least one of the following information: compression information, interference measurement result information, L1-RSRP, L1-SINR, CSI related information, second indication information.
4. CSI reporting on PUSCH under compression processing based CSI feedback
(1) Part 1 and part 2
In combination with the content of "(3) CSI report on PUSCH" described above, one CSI report based on compression processing may be composed of two parts, namely, part 1 and part 2.
For ease of distinction and description, embodiments of the present application may also refer to "part 1" as the "first part" and "part 2" as the "second part". Thus, the load size of the first part is fixed and the first part can be used to determine the number of information bits in the second part.
Since part 1 is of a fixed size and part 2 is of a variable size and depends on part 1, the application can be implemented as follows:
some important information is placed in the part 1, so that in the case of discarding the part 2, the terminal device can also report the important information to the network device by the part 1 as a relevant reference, thereby avoiding the loss of the important information;
some information determining the size of the part 2 is placed in the part 1 so that the network device can use the information to retrieve the part 2 while avoiding blind detection of the part 2, thereby improving the retrieval efficiency.
In combination with the content in the above "2, under CSI feedback based on compression processing, the content contained in the CSI report, the content contained in the part 1 and the part 2 are as follows:
Section 1 may comprise at least one of: compressed information, interference measurement result information, SSBRI, CRI, RI, CQI, LI, second indication information.
Portion 2 may comprise at least one of: compression information, interference measurement information, PMI, LI, CQI of the second codeword when RI (if reported) is greater than 4 (if reported).
Note that the content contained in the portion 1 and the portion 2 is different. For example, if part 1 contains compressed information, part 2 does not contain compressed information. That is, in some possible implementations, the compressed information may be located in either part 1 or part 2. Thus, by placing the compressed information in the portion 1 or the portion 2, it is advantageous to improve the flexibility of transmitting the compressed information.
In some possible implementations, the interference measurement information may be located in part 1 or part 2. Thus, by placing interference measurement result information in part 1 or part 2, it is advantageous to improve flexibility in transmitting compressed information.
In some possible implementations, SSBRI may be located in part 1. This is because, since the SSBRI can be important information/information of fixed size of the decision section 2, the SSBRI is located in the section 1, thereby being advantageous in avoiding loss of important information or avoiding the blind detection section 2.
In some possible implementations, CRI can be located in part 1. This is because, since CRI can be important information/information of fixed size of the decision section 2, CRI is located in the section 1, thereby being advantageous in avoiding loss of important information or avoiding the blind detection section 2.
In some possible implementations, RI may be located in part 1. This is because, since RI can be important information/information of fixed size of the important information/decision section 2, RI is located in the section 1, thereby being advantageous in avoiding loss of important information or avoiding the blind detection section 2.
In some possible implementations, the CQI may be located in part 1. This is because, since CQI can be important information/information of fixed size of the decision section 2, CQI is located in the section 1, thereby being advantageous in avoiding loss of important information or avoiding the blind detection section 2.
In some possible implementations, LI may be located in part 1. This is because, since LI can be important information or information determining the size of the section 2, LI is located in the section 1, thereby being advantageous in avoiding loss of important information or avoiding the blind detection section 2.
In some possible implementations, the PMI may be located in part 2. In this way, because the PMI is located in the portion 2 due to the characteristics of unfixed size, large resource occupation overhead and the like, the PMI is beneficial to ensuring the transmission of the PMI.
In some possible implementations, the second indication information may be located in part 1. This is because, since the second indication information can be used as important information or information determining the size of the section 2, the second indication information is located in the section 1, thereby advantageously avoiding the loss of important information or avoiding the blind detection of the section 2.
(2) Group 0 (group 0) and group 1 (group 1) (optional)
In addition, since the interference measurement result information may include at least one of a CSI-IM based interference measurement result, an NZP-CSI-RS based interference measurement result, there may be the following:
if part 2 contains interference measurement result information, part 2 may contain group 0 and/or group 1. Wherein, there are the following:
if the terminal device is configured with CSI-IM, part 2 may contain CSI-IM based interference measurements and the CSI-IM based interference measurements may be located in group 0.
-if the terminal device is not configured with CSI-IM, part 2 may not contain CSI-IM based interference measurements; at this time, the interference measurement result based on the NZP-CSI-RS may be located at group 0.
If the terminal device is configured with NZP-CSI-RS, part 2 may contain interference measurements based on NZP-CSI-RS and the interference measurements based on NZP-CSI-RS are located in group 1.
Part 2 may not contain NZP-CSI-RS based interference measurements if the terminal device is not configured with NZP-CSI-RS.
(3) Description of the examples
With the foregoing in mind, the following embodiments of the present application provide exemplary illustrations of the information contained in sections 1 and 2.
Example 1:
the part 1 contains compressed information.
Optionally, part 1 also contains the length of the compressed information and/or the length of the channel information.
Part 2 contains interference measurement result information; wherein,,
group 0 contains CSI-IM based interference measurements;
-if the terminal device is not configured with CSI-IM, part 2 does not contain CSI-IM based interference measurements; at this time, the interference measurement result based on the NZP CSI-RS is located at group 0.
Group 1 contains interference measurements based on NZP CSI-RS;
if the terminal device is not configured with NZP CSI-RS, part 2 does not contain NZP CSI-RS based interference measurements.
Example 2:
the section 1 contains the length of the compressed information and/or the length of the channel information.
Part 2 contains compressed information;
optionally, the part 2 may also contain interference measurement result information.
Example 3:
the part 1 contains at least one of the length of compressed information, the length of channel information, interference measurement result information, and second indication information.
The part 2 contains compressed information.
Example 4:
part 1 contains at least one of the length of compressed information, the length of channel information, interference measurement result information, SSBRI, CRI, RI, CQI, LI, second indication information.
The part 2 contains compressed information.
Optionally, part 2 further comprises a PMI.
5. Priority of CSI report under CSI feedback based on compression processing
In combination with the content of the priority of the "(4) CSI report, a CSI report based on compression processing is associated with a priority of Pri' CSI (a,y′,k′,c′,s′)：
Pri CSI (y,k,c,s)＝a·N′ cells ·M′ s ·y′+N′ cells ·M s ′·k′+M′ s ·c′+s′。
(1) y' is taken as value
In an embodiment of the present application, the value of y' may be determined by the report type of the CSI report based on the compression processing.
In some possible implementations, the value of y' may be the same as or different from the value of y described above.
For example, taking the same example, for an aperiodic CSI report scheduled to be carried on PUSCH, the value of y' may be 0; for semi-persistent CSI reports scheduled to be carried on PUSCH, the value of y' may be 1; for semi-persistent CSI reports scheduled to be carried on PUCCH, the value of y' may be 2; for periodic CSI reports scheduled to be carried on PUCCH, the value of y' may be 3; etc.
(2) The value of k
In the embodiment of the present application, the value of k' may be determined based on the type of information included in the first CSI report, which is a CSI report based on the compression process.
For example, the value of k' may be determined based on the type of information contained in the compressed CSI report as indicated by the reportquality in CSI-ReportConfig.
In some possible implementations, the value of k' may be the same as or different from the value of k described above.
In some possible implementations, the value of k' may be one of 0, 0.5, 1, 2, 3, etc.
In addition, for convenience of distinction and description, the embodiment of the present application may refer to k' as "first parameter". Thus, the priority of the compression-based CSI report may be determined by a first parameter, which may be determined by the type of information contained in the compression-based CSI report (i.e., the first CSI report).
(3) c' takes on value
In the embodiment of the present application, the value of c 'may be identical to the value of c, that is, the value of c' is the serving cell index value.
(4) s' is valued
In an embodiment of the present application, the value of s' may be determined by the configuration identifier of the CSI report based on the compression processing.
For example, the value of s 'is consistent with the value of s, that is, the value of s' is the value of reportConfigID in CSI-ReportConfig.
(5)N′ cells Is of the value of (2)
In the embodiment of the application, N' cells May be determined by the maximum number of serving cells.
For example, N' cells Can be equal to the value of N cells The values of (A) are consistent, namely N' cells The value of (2) is the value of maxNrofServercells in CSI-ReportConfig.
In addition, in the embodiment of the application, N' cells May also be determined by the maximum number of serving cells configured with CSI reports based on the compression process.
(6)M′ s Is of the value of (2)
In embodiments of the application, M' s May be determined by the maximum number of configurations of the channel state information report based on the compression process.
In addition, in the embodiment of the application, M' s May be determined by the maximum number of channel state information reports.
For example, M' s Can be taken as M s The values of (C) are consistent, namely M' s The value of (2) is the value of maxNrofCSI-ReportConfigurations in CSI-reportconfiguration.
(7) Value of a
In the embodiment of the application, the value of a can be determined by the value range of k'. For example, if k' is one of 0 and 1, a may be 2; if k' can be one of 0, 0.5, 1, 2 and 3, a can be 5.
In some possible implementations, the value of a may be an integer greater than 1.
(8) Priority comparison
Since a compressed-based CSI report is associated with a priority value, if a compressed-based CSI report is associated with a priority value Pri' CSI (a, y ', k', c ', s') is smaller than the priority value Pri 'associated with another compression-based CSI report' CSI (a, y ', k', c ', s'), the priority of the compression-based CSI report is higher than the priority of the other compression-based CSI report.
Since a compressed-based CSI report is associated with a priority value, if a compressed-based CSI report is associated with a priority value Pri' CSI (a, y ', k', c ', s') is less than another priority value Pri associated with the CSI report that is not based on compression processing cSI (y, k, c, s), the priority of the CSI report based on the compression process is higher than the priority of the other CSI report not based on the compression process.
(9) Priority between group 0 and group 1
In combination with the content of "4, CSI report on PUSCH under CSI feedback based on compression processing" described above, if part 2 of CSI report based on compression processing contains interference measurement result information, the interference measurement result information needs to be grouped.
In addition, in embodiments of the present application, group 0 may have a higher priority than group 1, i.e., group 0 > group 1.
Therefore, when uplink feedback resources (i.e., PUCCH/PUSCH carrying CSI report based on compression processing) are limited and discarding of part 2 of CSI report based on compression processing is required, discarding is performed in order of priority, i.e., group 1 is preferentially discarded.
6. CPU occupied by CSI report under CSI feedback based on compression processing
(1) CPU reporting number of occupied CPU based on compression processing
In combination with the content of "(2) the number of CPUs occupied by one CSI report", one based on the number O 'of CPUs occupied by the CSI report of the compression processing' CPU The following may be present:
①O′ CPU ＝O CPU
that is, O' CPU With O as described above CPU The same applies. Thus, there may be the following:
if the higher layer parameter reportquality in CSI-ReportConfig is set to ' none ' and the higher layer parameter trs-Info is configured in CSI-RS-resource set, O ' CPU =0. It should be noted that this manner may or may not exist, and is not particularly limited.
If the higher layer parameter reportquality in CSI-ReportConfig is set to ' cri-RSRP ', ' ssb-Index-RSRP ', ' cri-SINR ', ' ssb-Index-SINR ', or ' none ' (when CSI-RS-resource set is not configured with higher layer parameter trs-Info), O ' CPU =1. It should be noted that this manner may or may not exist, and is not particularly limited.
If the higher-layer parameter reportquality in CSI-ReportConfig is set to 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', 'cri-RI-CQI', or 'cri-RI-LI-PMI-CQI', then:
-if max (μ) PDCCH ,μ CSI-RS ,μ UL ) < 3, one CSI report is triggered aperiodically, l=0 CPUs are occupied, and the terminal device does not transmit a signal with a transmission blockOr HARQ-ACK or both) and corresponds to a single CSI with wideband frequency granularity and to a maximum of 4 CSI-RS ports in a single resource, where codebook type is set to ' typeI-SinglePanel ' (or reportquality is set to ' cri-RI-CQI '), then O ' CPU ＝ CPU . That is, the number of CPUs occupied by the CSI report based on the compression process is the total number of CPUs reported by the terminal device.
-if the codebook type in CSI-ReportConfig corresponding to one CSI report is set to 'typeI-SinglePanel' and the corresponding CSI-RS resource set for channel measurement is configured with 2 resource groups, consisting of N resource pairs, M resources for single site transmission assumption, O CPU =2n+m. That is, the number of CPUs occupied for CSI reporting is 2n+m.
Otherwise, O' CPU ＝K s ，K s Is the number of NZP-CSI-RS resources (which may also be referred to as channel measurement resources) in the NZP-CSI-RS-resource set for channel measurement. That is, the number of CPUs occupied by the compression-based CSI report is the number of channel measurement resources associated with the compression-based CSI report.
②O′ CPU ≠O CPU
That is, O' CPU With O as described above CPU Are not identical.
③O′ CPU Can be made of K s Determination of
That is, O' CPU May be determined by the number of channel measurement resources associated with the compressed CSI report.
For example, O' CPU ＝K s 、O′ CPU >K s 、O′ CPU <K s Or O' CPU ＝K s +σ. Where σ is a preconfigured, network configured or protocol specified offset value.
④O′ CPU Is of a first value
Wherein the first value may be pre-configured, network configured, or protocol specified.
The first value may beTo be understood as a certain fixed value, which is pre-configured, network configured or protocol specified. That is, O' CPU Is pre-configured, network configured, or protocol specified.
Of course, the first value may also be described in other terms, without specific limitation.
(2) A CPU based on compression process reports the number of OFDM symbols occupied by occupied CPU
The number of OFDM symbols occupied by the CPU based on the compression processing CPU report may be identical to the content of the above "(3) number of OFDM symbols occupied by the CPU", and will not be described again.
7. CSI calculation time requirement of CSI report under CSI feedback based on compression processing
In combination with the content in the above "(6) CSI calculation time requirement of CSI report", CSI calculation time requirement based on CSI report (Z AI ,Z′ AI ) The following may be present:
①(Z AI ,Z′ AI )≠(Z(m),Z′(m))
that is, (Z AI ,Z′ AI ) Unlike (Z (m), Z' (m)) described above. Alternatively, (Z) AI ,Z′ AI ) Unlike (Z (m), Z' (m)) described above.
For example, (Z) AI ,Z′ AI )≠(Z 1 ,Z′ 1 ) Or (Z) AI ,Z′ AI )≠(Z 2 ,Z′ 2 ) Or (Z) AI ,Z′ AI )≠(Z 3 ,Z′ 3 )。
②(Z AI ,Z′ AI )＝(Z(m),Z′(m))
That is, (Z AI ,Z′ AI ) The same as (Z (m), Z' (m)) described above.
For example, (Z) AI ,Z′ AI )＝(Z 1 ,Z′ 1 ) Or (Z) AI ,Z′ AI )＝(Z 2 ,Z′ 2 ) Or (Z) AI ,Z′ AI )＝(Z 3 ,Z′ 3 )。
③(Z AI ,Z′ AI ) From (Z (m), Z' (m))
That is, (Z AI ,Z′ AI ) May have an associative (correspondence/mapping, etc.) relationship with (Z (m), Z' (m)).
For example, (Z) AI ,Z′ AI )＝(Z 1 +Δz 1 ,Z′ 1 +Δz 2 ) Or (Z) AI ,Z′ AI )＝(Z 2 +Δz 3 ,Z′ 2 +Δz 4 ) Or (Z) AI ,Z′ AI )＝(Z 3 +Δz 5 ,Z′ 3 +Δz 6 ). Wherein Δz 1 、Δz 2 、Δz 3 、Δz 4 、Δz 5 And Δz 6 Can be positive or negative and Δz 1 、Δz 2 、Δz 3 、Δz 4 、Δz 5 And Δz 6 May be pre-configured, network configured, or protocol specified.
③Z AI Is of a second value and Z' AI Is of a third value
Wherein the first value may be pre-configured, network configured, or protocol specified.
The second value may be understood as a fixed value, which is predetermined by a pre-configuration, a network configuration, or a protocol. The third value, which may be understood as a certain fixed value, is pre-configured, network configured or protocol specified.
Of course, the second value and the third value may also be described in other terms, without specific limitation.
5. An illustration of a CSI report transmission method
In summary, the following embodiments of the present application take interaction between a terminal device and a network device as an example, and an example description is given to a channel state information report transmission method in the embodiments of the present application. The terminal device may be a chip, a chip module, a module, or the like for the execution subject of the method. That is, the method is applied to the terminal device. Correspondingly, for the execution subject of the method, the network device may also be a chip, a chip module or a module, etc. That is, the method is applied in a network device.
As shown in fig. 2, a flow chart of a method for transmitting a channel state information report according to an embodiment of the present application specifically includes the following steps:
s210, the network equipment sends configuration information, wherein the configuration information is used for determining a first CSI report, the first CSI report is a CSI report containing compressed information, and the compressed information is information after channel information is compressed.
It should be noted that, the "configuration information", "first CSI report", "compression information", and "channel information" and the like are detailed in the foregoing "1, channel information, compression information, configuration information, first CSI report and second CSI report" or other related content, which are not described herein.
Correspondingly, the terminal equipment acquires the configuration information.
S220, the terminal equipment sends the first CSI report, and the first CSI report is sent according to the configuration message. That is, the terminal device transmits the first CSI report according to the configuration information.
Correspondingly, the network device receives the first CSI report, which is received according to the configuration information. That is, the network device receives the first CSI report according to the configuration information.
Therefore, the channel information may have the characteristics of large bit number, and the like, and the direct feedback of the channel information will cause the problems of more occupied resources, large signaling overhead, and the like, so that a mode of not directly feeding back the channel information is generally adopted. In order to reduce occupied resources, signaling overhead and the like, the embodiment of the application adopts a mode of compressing channel information, so that the compressed channel information (namely compressed information) has the characteristics of smaller bit number, higher precision and the like.
In order to realize the feedback of the compressed information, the embodiment of the application adopts the CSI report to feed back the compressed information, and introduces the configuration information, so that the network equipment can send the configuration information to the terminal equipment to determine the CSI report (namely the first CSI report) containing the compressed information, and the network equipment can send the configuration information to receive the first CSI report, and the terminal equipment can send the first CSI report according to the configuration information, thereby realizing the feedback of the compressed information through the transmission of the first CSI report, and being beneficial to reducing occupied resources, reducing signaling overhead and improving precision.
In some possible implementations, the channel information is obtained by the terminal device through channel measurement by the downlink reference signal.
Therefore, the embodiment of the application can realize the acquisition of the channel information by carrying out the channel measurement through the downlink reference signal.
In some possible implementations, the terminal device may compress the channel information to obtain compressed information based on the following manner:
and the terminal equipment compresses the channel information through the artificial intelligent module to obtain compressed information. That is, the compressed information is information after the channel information is compressed by the artificial intelligence module.
It should be noted that, details of the content of "(2) compressed information" are described in detail, and will not be described herein.
Therefore, the AI module can be used for compressing the channel information so as to compress the channel information and ensure the accuracy of the compressed information and the like.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is a first value, the first value being pre-configured, network configured, or protocol specified.
It should be noted that, details of the content in the above "6, under CSI feedback based on compression processing," the CPU occupied by CSI report "will not be described again.
It can be seen that the number of CSI processing units occupied by the first CSI report may be determined to be the first value in a preconfigured, network configured or protocol specified manner.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is determined by the number of channel measurement resources associated with the first CSI report.
It should be noted that, details of the content in the above "6, under CSI feedback based on compression processing," the CPU occupied by CSI report "will not be described again.
It can be seen that the embodiment of the present application may implement determining the number of CSI processing units occupied by the first CSI report by the number of channel measurement resources associated with the first CSI report.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is greater than the number of channel measurement resources associated with the first CSI report.
It should be noted that, details of the content in the above "6, under CSI feedback based on compression processing," the CPU occupied by CSI report "will not be described again.
It can be seen that, in the embodiment of the present application, a size relationship between the number of channel measurement resources associated with the first CSI report and the number of CSI processing units occupied by the first CSI report may be established, and the number of channel measurement resources associated with the first CSI report and the number of CSI processing units occupied by the first CSI report may be configured such that the number of CSI processing units occupied by the first CSI report is greater than the number of channel measurement resources associated with the first CSI report.
In some possible implementations, the CSI calculation time requirement of the first CSI report is determined by the CSI calculation time requirement of the second CSI report;
the second CSI report is a CSI report that does not contain compressed information, i.e., the second CSI report does not contain compressed information.
It should be noted that, details of the above "7, under CSI feedback based on compression processing," the content of the CSI calculation time requirement of CSI report "will not be described herein.
It can be seen that, in the embodiment of the present application, an association (corresponding/mapping, etc.) between the CSI calculation time requirement of the second CSI report and the CSI calculation time requirement of the first CSI report may be established, and the CSI calculation time requirement of the second CSI report may be configured, and the CSI calculation time requirement of the first CSI report may be determined by the CSI calculation time requirement of the second CSI report.
In some possible implementations, the CSI calculation time requirement of the first CSI report is different from the CSI calculation time requirement of the second CSI report;
the second CSI report is a CSI report that does not contain compressed information.
It should be noted that, details of the above "7, under CSI feedback based on compression processing," the content of the CSI calculation time requirement of CSI report "will not be described herein.
It can be seen that the embodiments of the present application can configure the CSI calculation time requirement of the first CSI report and the CSI calculation time requirement of the second CSI report, so that the CSI calculation time requirement of the first CSI report is not used for the CSI calculation time requirement of the second CSI report.
In some possible implementations, the first CSI report is composed of a first part and a second part, the load size of the first part is fixed, and the first part is used for determining the bit information amount in the second part;
the compressed information is located in either the first portion or the second portion.
It should be noted that, details of the above "4, under CSI feedback based on compression processing," content in CSI report on PUSCH will not be described here again.
It can be seen that the embodiment of the present application may include (carry/bear, etc.) the compressed information through the first portion or the second portion of the first CSI report, so as to implement feedback on the compressed information through the first CSI report.
In some possible implementations, the configuration information includes CSI report configuration information for configuring the first CSI report.
It should be noted that, details of the foregoing "(3) configuration information" are described in detail, and will not be described herein.
It can be seen that the embodiment of the present application can configure the first CSI report by CSI report configuration information (CSI-ReportConfig) in the configuration information.
In addition, in some possible implementations, CSI-ReportConfig may be associated (mapped, etc.) with CSI-ResourceConfig.
In some possible implementations, the configuration information is used to determine the first CSI report, including:
the configuration information comprises first indication information;
and the first indication information is used for indicating that the first CSI report contains compression information.
It should be noted that, details of the foregoing "(3) configuration information" are described in detail, and will not be described herein.
It can be seen that the embodiment of the present application can be implemented by the first indication information in the configuration information to indicate to the terminal equipment that the first CSI report needs to include compression information. In this regard, the terminal device needs to perform compression processing on the channel information to obtain compressed information, and feedback the compressed information.
In some possible implementations, the configuration information further includes receive antenna number information;
And the receiving antenna number information is used for indicating the number of the receiving antennas required by the terminal equipment for acquiring the channel information.
It should be noted that, details of the foregoing "(3) configuration information" are described in detail, and will not be described herein.
It can be seen that the embodiment of the application can realize the indication of the number of the receiving antennas needed to be used when obtaining the channel information to the terminal equipment through the number of the receiving antennas in the configuration information.
In some possible implementations, the configuration information further includes at least one of first length information, second length information;
first length information indicating a length of the channel information;
and second length information indicating the length of the compressed information.
It should be noted that, details of the foregoing "(3) configuration information" are described in detail, and will not be described herein.
It can be seen that the embodiment of the present application can implement indicating, to the terminal device, the length of the channel information when the signal information is acquired, by the first length information in the configuration information. Correspondingly, the embodiment of the application can realize the indication of the length of the compressed information when the signal information is compressed to the terminal equipment through the second length information in the configuration information.
In some possible implementations, the first length information is determined by terminal device capability information reported by the terminal device; and/or the number of the groups of groups,
And the second length information is determined by the terminal equipment capability information reported by the terminal equipment.
It should be noted that, details of the foregoing "(3) configuration information" are described in detail, and will not be described herein.
It can be seen that the length of the channel information indicated by the first length information in the embodiment of the present application needs to conform to the reporting capability of the terminal device. Correspondingly, the length of the compressed information indicated by the second length information in the embodiment of the present application needs to conform to the reporting capability of the terminal device.
In some possible implementations, the first CSI report also contains interference measurement information;
interference measurement result information for indicating interference measurement results obtained by the terminal device performing interference measurement according to the configuration information.
It should be noted that, details of the content in the above "3, under CSI feedback based on compression processing", the type of information included in the CSI report "will not be described herein.
It can be seen that the embodiment of the application can realize feedback of the interference measurement result information through the first CSI report.
In some possible implementations, the interference measurement information is located in the first portion or the second portion of the first CSI report.
It should be noted that, details of the above "4, under CSI feedback based on compression processing," content in CSI report on PUSCH will not be described here again.
It can be seen that the embodiment of the present application may include (carry/bear, etc.) interference measurement result information through the first portion or the second portion in the first CSI report.
In some possible implementations, the interference measurement information includes at least one of interference measurements based on CSI interference measurement signals, interference measurements based on non-zero power CSI reference signals.
It should be noted that, details of the content in the above "3, under CSI feedback based on compression processing", the type of information included in the CSI report "will not be described herein.
In some possible implementations, if the interference measurement based on the CSI interference measurement signal is in the second portion of the first CSI report, the interference measurement based on the CSI interference measurement signal is in group 0; and/or the number of the groups of groups,
if the interference measurement based on the non-zero power CSI reference signal is located in the second portion of the first CSI report, the interference measurement based on the non-zero power CSI reference signal is located in group 0 or group 1.
It should be noted that, details of the above "4, under CSI feedback based on compression processing," content in CSI report on PUSCH will not be described here again.
It can be seen that the embodiment of the present application may group interference measurement result information in the second portion of the first CSI report according to the type of synchronization.
In some possible implementations, the first CSI report further includes at least one of:
the synchronization signal block resource indication index SSBRI, the CSI reference signal resource indication index CRI, the rank indication index RI, the precoding matrix indication index PMI, the channel quality indication index CQI, and the layer indication index LI.
It should be noted that, details of the content in the above "3, under CSI feedback based on compression processing", the type of information included in the CSI report "will not be described herein.
It can be seen that the embodiment of the present application may implement feedback on at least one of SSBRI, CRI, RI, PMI, CQI, LI through the first CSI report.
In some possible implementations, the SSBRI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
CRI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
the RI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
CQI is in a first portion of a first CSI report; and/or the number of the groups of groups,
LI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
the PMI is located in a second portion of the first CSI report.
It should be noted that, details of the above "4, under CSI feedback based on compression processing," content in CSI report on PUSCH will not be described here again.
It can be seen that embodiments of the present application may include (carry/bearer, etc.) at least one of SSBRI, CRI, RI, PMI, CQI, LI through the first portion or the second portion of the first CSI report.
In some possible implementations, the first CSI report also includes second indication information;
and second indication information for indicating the relevant characteristics of the compressed information.
It should be noted that, details of the content in the above "3, under CSI feedback based on compression processing", the type of information included in the CSI report "will not be described herein.
It can be seen that the embodiment of the application can realize the feedback of the relevant characteristics of the compressed information to the network equipment through the second indication information in the first CSI report.
In some possible implementations, relevant features of the compressed information include at least one of:
the length of the channel information, the length of the compressed information, and the location of the compressed information in the artificial intelligence module.
It should be noted that, details of the content in the above "3, under CSI feedback based on compression processing", the type of information included in the CSI report "will not be described herein.
In some possible implementations, the second indication information is located in a first portion of the first CSI report.
It should be noted that, details of the above "4, under CSI feedback based on compression processing," content in CSI report on PUSCH will not be described here again.
It can be seen that the embodiment of the present application may include (carry/bear, etc.) the second indication information through the first portion in the first CSI report.
In some possible implementations, the priority of the first CSI report is determined by a first parameter, the value of which is determined by the type of information contained in the first CSI report.
It should be noted that, details of the above "5, under CSI feedback based on compression processing", the content of the priority of CSI report "will not be described herein.
It can be seen that the embodiment of the present application may determine the priority of the first CSI report through the first parameter determined by the information type included in the first CSI report.
6. An illustration of a channel state information report transmission device
The foregoing description of the embodiments of the present application has been presented primarily from a method-side perspective. It will be appreciated that the terminal device or network device, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The embodiment of the application can divide the functional units of the terminal equipment or the network equipment according to the method example. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. It should be noted that, in the embodiment of the present application, the division of the units is schematic, but only one logic function is divided, and another division manner may be adopted in actual implementation.
In the case of using integrated units, fig. 3 is a block diagram showing functional units of a channel state information report transmitting apparatus according to an embodiment of the present application. The channel state information report transmitting apparatus 300 includes: an acquisition unit 301 and a transmission unit 302.
In some possible implementations, the acquiring unit 301 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.
In some possible implementations, the transmitting unit 302 may be a module unit for processing signals, data, information, etc., which is not particularly limited
In some possible implementations, the channel state information report transmitting apparatus 300 may further include a storage unit for storing computer program codes or instructions executed by the channel state information report transmitting apparatus 300. The memory unit may be a memory.
In some possible implementations, the channel state information report transmitting device 300 may be a chip or a chip module.
In some possible implementations, the acquisition unit 301 and the transmission unit 302 may be integrated in one unit, or separate units.
For example, the acquisition unit 301 and the transmission unit 302 may be integrated in a communication unit. The communication unit may be a communication interface, transceiver circuit, etc.
For another example, the acquisition unit 301 and the transmission unit 302 may be integrated in a processing unit. The processing unit may be a processor or a controller, and may be, for example, a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.
For another example, the acquisition unit 301 may be integrated in a communication unit and the transmission unit 302 may be integrated in a processing unit.
For another example, the acquisition unit 301 may be integrated in a processing unit and the transmission unit 302 may be integrated in a communication unit.
In some possible implementations, the acquiring unit 301 and the sending unit 302 are configured to perform any step, such as sending or receiving, of data transmission performed by the terminal device, the chip module, etc. in the above-described method embodiments. The following is a detailed description.
In a specific implementation, the acquiring unit 301 and the sending unit 302 are configured to perform any step in the above method embodiments, and when performing data transmission such as sending, the acquiring unit is optionally invoked to complete a corresponding operation. The following is a detailed description.
An obtaining unit 301, configured to obtain configuration information, where the configuration information is used to determine a first CSI report, where the first CSI report is a CSI report that includes compressed information, and the compressed information is information after compression processing of channel information;
a sending unit 302, configured to send the first CSI report according to the configuration information.
Therefore, the channel information may have the characteristics of large bit number, and the like, and the direct feedback of the channel information will cause the problems of more occupied resources, large signaling overhead, and the like, so that a mode of not directly feeding back the channel information is generally adopted. In order to reduce occupied resources, signaling overhead and the like, the embodiment of the application adopts a mode of compressing channel information, so that the compressed channel information (namely compressed information) has the characteristics of smaller bit number, higher precision and the like.
In order to realize the feedback of the compressed information, the embodiment of the application adopts the CSI report to feed back the compressed information, and introduces the configuration information, so that the network device can send the configuration information to the channel state information report transmission device 300 to determine the CSI report (i.e. the first CSI report) containing the compressed information, and the network device can receive the first CSI report through the configuration information, and the channel state information report transmission device 300 can send the first CSI report through the configuration information, thereby realizing the feedback of the compressed information through the transmission of the first CSI report, so as to be beneficial to reducing occupied resources, reducing signaling overhead and improving accuracy.
It should be noted that, the specific implementation of each operation in the embodiment shown in fig. 3 may be described in detail in the above-shown method embodiment, and will not be described in detail herein.
In some possible implementations, the channel information is obtained by the terminal device through channel measurement by the downlink reference signal.
In some possible implementations, the compressed information is information after the channel information is compressed, including:
the compressed information is information after the channel information is compressed by the artificial intelligence module.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is a first value, the first value being pre-configured, network configured, or protocol specified.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is determined by the number of channel measurement resources associated with the first CSI report.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is greater than the number of channel measurement resources associated with the first CSI report.
In some possible implementations, the CSI calculation time requirement of the first CSI report is determined by the CSI calculation time requirement of the second CSI report;
the second CSI report is a CSI report that does not contain compressed information.
In some possible implementations, the CSI calculation time requirement of the first CSI report is different from the CSI calculation time requirement of the second CSI report;
the second CSI report is a CSI report that does not contain compressed information.
In some possible implementations, the first CSI report is composed of a first part and a second part, the load size of the first part is fixed, and the first part is used for determining the bit information amount in the second part;
the compressed information is located in either the first portion or the second portion.
In some possible implementations, the configuration information includes CSI report configuration information for configuring the first CSI report.
In some possible implementations, the configuration information is used to determine the first CSI report, including:
the configuration information comprises first indication information;
and the first indication information is used for indicating that the first CSI report contains compression information.
In some possible implementations, the configuration information further includes receive antenna number information;
the number of reception antennas information indicating the number of reception antennas required for the channel information acquisition by the channel state information report transmitting apparatus 300.
In some possible implementations, the configuration information further includes at least one of first length information, second length information;
first length information indicating a length of the channel information;
and second length information indicating the length of the compressed information.
In some possible implementations, the first length information is determined by terminal device capability information reported by the terminal device; and/or the number of the groups of groups,
and the second length information is determined by the terminal equipment capability information reported by the terminal equipment.
In some possible implementations, the first CSI report also contains interference measurement information;
Interference measurement result information for indicating interference measurement results obtained by the terminal device performing interference measurement according to the configuration information.
In some possible implementations, the interference measurement information is located in the first portion or the second portion of the first CSI report.
In some possible implementations, the interference measurement information includes at least one of interference measurements based on CSI interference measurement signals, interference measurements based on non-zero power CSI reference signals.
In some possible implementations, if the interference measurement based on the CSI interference measurement signal is in the second portion of the first CSI report, the interference measurement based on the CSI interference measurement signal is in group 0; and/or the number of the groups of groups,
if the interference measurement based on the non-zero power CSI reference signal is located in the second portion of the first CSI report, the interference measurement based on the non-zero power CSI reference signal is located in group 0 or group 1.
In some possible implementations, the first CSI report further includes at least one of:
the synchronization signal block resource indication index SSBRI, the CSI reference signal resource indication index CRI, the rank indication index RI, the precoding matrix indication index PMI, the channel quality indication index CQI, and the layer indication index LI.
In some possible implementations, the SSBRI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
CRI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
the RI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
CQI is in a first portion of a first CSI report; and/or the number of the groups of groups,
LI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
the PMI is located in a second portion of the first CSI report.
In some possible implementations, the first CSI report also includes second indication information;
and second indication information for indicating the relevant characteristics of the compressed information.
In some possible implementations, relevant features of the compressed information include at least one of:
the length of the channel information, the length of the compressed information, and the location of the compressed information in the artificial intelligence module.
In some possible implementations, the second indication information is located in a first portion of the first CSI report.
In some possible implementations, the priority of the first CSI report is determined by a first parameter, the value of which is determined by the type of information contained in the first CSI report.
7. Yet another example illustration of a channel state information report transmitting device
In the case of using integrated units, fig. 4 is a block diagram showing functional units of still another channel state information report transmitting apparatus according to an embodiment of the present application. The channel state information report transmitting apparatus 400 includes: a transmitting unit 401 and a receiving unit 402.
In some possible implementations, the transmitting unit 401 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.
In some possible implementations, the receiving unit 402 may be a module unit for processing signals, data, information, etc., which is not particularly limited
In some possible implementations, the channel state information report transmitting apparatus 400 may further include a storage unit for storing computer program codes or instructions executed by the channel state information report transmitting apparatus 400. The memory unit may be a memory.
In some possible implementations, the channel state information report transmitting device 400 may be a chip or a chip module.
In some possible implementations, the sending unit 401 and the receiving unit 402 may be integrated in one unit, or separate units.
For example, the transmitting unit 401 and the receiving unit 402 may be integrated in a communication unit. The communication unit may be a communication interface, transceiver circuit, etc.
As another example, the transmitting unit 401 and the receiving unit 402 may be integrated in a processing unit. The processing unit may be a processor or a controller, and may be, for example, a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.
For another example, the transmitting unit 401 may be integrated in a communication unit and the receiving unit 402 may be integrated in a processing unit.
For another example, the transmitting unit 401 may be integrated in a processing unit and the receiving unit 402 may be integrated in a communication unit.
In some possible implementations, the sending unit 401 and the receiving unit 402 are configured to perform any step, such as sending or receiving, of data transmission performed by a terminal device, a chip module, etc. in the above-described method embodiments. The following is a detailed description.
In a specific implementation, the sending unit 401 and the receiving unit 402 are configured to perform any step in the method embodiments described above, and when performing data transmission such as sending, the obtaining unit is optionally invoked to complete the corresponding operation. The following is a detailed description.
A transmitting unit 401, configured to transmit configuration information, where the configuration information is used to determine a first CSI report, where the first CSI report is a CSI report that includes compressed information, and the compressed information is information after compression processing of channel information;
a receiving unit 402, configured to receive the first CSI report according to the configuration information.
Therefore, the channel information may have the characteristics of large bit number, and the like, and the direct feedback of the channel information will cause the problems of more occupied resources, large signaling overhead, and the like, so that a mode of not directly feeding back the channel information is generally adopted. In order to reduce occupied resources, signaling overhead and the like, the embodiment of the application adopts a mode of compressing channel information, so that the compressed channel information (namely compressed information) has the characteristics of smaller bit number, higher precision and the like.
In order to realize the feedback of the compressed information, the embodiment of the application adopts the CSI report to feed back the compressed information, and introduces the configuration information, so that the channel state information report transmitting device 400 can send the configuration information to the terminal device to determine the CSI report (i.e. the first CSI report) containing the compressed information, and the channel state information report transmitting device 400 can receive the first CSI report through the configuration information, and the terminal device can send the first CSI report through the configuration information, thereby realizing the feedback of the compressed information through the transmission of the first CSI report, so as to be beneficial to reducing occupied resources, reducing signaling overhead and improving accuracy.
It should be noted that, the specific implementation of each operation in the embodiment shown in fig. 4 may be described in detail in the above-shown method embodiment, and will not be described in detail herein.
In some possible implementations, the channel information is obtained by the terminal device through channel measurement by the downlink reference signal.
In some possible implementations, the compressed information is information after the channel information is compressed, including:
the compressed information is information after the channel information is compressed by the artificial intelligence module.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is a first value, the first value being pre-configured, network configured, or protocol specified.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is determined by the number of channel measurement resources associated with the first CSI report.
In some possible implementations, the number of CSI processing units occupied by the first CSI report is greater than the number of channel measurement resources associated with the first CSI report.
In some possible implementations, the CSI calculation time requirement of the first CSI report is determined by the CSI calculation time requirement of the second CSI report;
the second CSI report is a CSI report that does not contain compressed information.
In some possible implementations, the CSI calculation time requirement of the first CSI report is different from the CSI calculation time requirement of the second CSI report;
the second CSI report is a CSI report that does not contain compressed information.
In some possible implementations, the first CSI report is composed of a first part and a second part, the load size of the first part is fixed, and the first part is used for determining the bit information amount in the second part;
the compressed information is located in either the first portion or the second portion.
In some possible implementations, the configuration information includes CSI report configuration information for configuring the first CSI report.
In some possible implementations, the configuration information is used to determine the first CSI report, including:
the configuration information comprises first indication information;
and the first indication information is used for indicating that the first CSI report contains compression information.
In some possible implementations, the configuration information further includes receive antenna number information;
and the receiving antenna number information is used for indicating the number of the receiving antennas required by the terminal equipment for acquiring the channel information.
In some possible implementations, the configuration information further includes at least one of first length information, second length information;
first length information indicating a length of the channel information;
and second length information indicating the length of the compressed information.
In some possible implementations, the first length information is determined by terminal device capability information reported by the terminal device; and/or the number of the groups of groups,
and the second length information is determined by the terminal equipment capability information reported by the terminal equipment.
In some possible implementations, the first CSI report also contains interference measurement information;
interference measurement result information for indicating interference measurement results obtained by the terminal device performing interference measurement according to the configuration information.
In some possible implementations, the interference measurement information is located in the first portion or the second portion of the first CSI report.
In some possible implementations, the interference measurement information includes at least one of interference measurements based on CSI interference measurement signals, interference measurements based on non-zero power CSI reference signals.
In some possible implementations, if the interference measurement based on the CSI interference measurement signal is in the second portion of the first CSI report, the interference measurement based on the CSI interference measurement signal is in group 0; and/or the number of the groups of groups,
if the interference measurement based on the non-zero power CSI reference signal is located in the second portion of the first CSI report, the interference measurement based on the non-zero power CSI reference signal is located in group 0 or group 1.
In some possible implementations, the first CSI report further includes at least one of:
the synchronization signal block resource indication index SSBRI, the CSI reference signal resource indication index CRI, the rank indication index RI, the precoding matrix indication index PMI, the channel quality indication index CQI, and the layer indication index LI.
In some possible implementations, the SSBRI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
CRI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
the RI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
CQI is in a first portion of a first CSI report; and/or the number of the groups of groups,
LI is located in a first portion of a first CSI report; and/or the number of the groups of groups,
the PMI is located in a second portion of the first CSI report.
In some possible implementations, the first CSI report also includes second indication information;
and second indication information for indicating the relevant characteristics of the compressed information.
In some possible implementations, relevant features of the compressed information include at least one of:
the length of the channel information, the length of the compressed information, and the location of the compressed information in the artificial intelligence module.
In some possible implementations, the second indication information is located in a first portion of the first CSI report.
In some possible implementations, the priority of the first CSI report is determined by a first parameter, the value of which is determined by the type of information contained in the first CSI report.
8. Example illustration of terminal equipment
Referring to fig. 5, fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application. Wherein the terminal device 500 comprises a processor 510, a memory 520 and a communication bus for connecting the processor 510 and the memory 520.
In some possible implementations, memory 520 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or portable read-only memory (compact disc read-only memory, CD-ROM), memory 520 for storing program code and transmitted data for execution by terminal device 500.
In some possible implementations, the terminal device 500 also includes a communication interface for receiving and transmitting data.
In some possible implementations, the processor 510 may be one or more Central Processing Units (CPUs), which may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU) in the case where the processor 510 is one.
In some possible implementations, the processor 510 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.
In particular implementation, the processor 510 in the terminal device 500 is configured to execute the computer program or instructions 521 stored in the memory 520, and perform the following operations:
Acquiring configuration information, wherein the configuration information is used for determining a first CSI report, the first CSI report is a CSI report containing compressed information, and the compressed information is information after channel information is compressed;
and sending a first CSI report according to the configuration information.
Therefore, the channel information may have the characteristics of large bit number, and the like, and the direct feedback of the channel information will cause the problems of more occupied resources, large signaling overhead, and the like, so that a mode of not directly feeding back the channel information is generally adopted. In order to reduce occupied resources, signaling overhead and the like, the embodiment of the application adopts a mode of compressing channel information, so that the compressed channel information (namely compressed information) has the characteristics of smaller bit number, higher precision and the like.
In order to realize the feedback of the compressed information, the embodiment of the application adopts the CSI report to feed back the compressed information, and introduces the configuration information, so that the network equipment can send the configuration information to the terminal equipment to determine the CSI report (namely the first CSI report) containing the compressed information, and the network equipment can receive the first CSI report through the configuration information, and the terminal equipment can send the first CSI report through the configuration information, thereby realizing the feedback of the compressed information through the transmission of the first CSI report, thereby being beneficial to reducing occupied resources, reducing signaling overhead and improving precision.
It should be noted that, the specific implementation of each operation may be described in the above-illustrated method embodiment, and the terminal device 500 may be used to execute the above-illustrated method embodiment of the present application, which is not described herein.
9. An illustration of a network device
Referring to fig. 6, fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application. Wherein the network device 600 comprises a processor 610, a memory 620 and a communication bus for connecting the processor 610, the memory 620.
In some possible implementations, memory 620 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, memory 620 being used to store related instructions and data.
In some possible implementations, the network device 600 also includes a communication interface for receiving and transmitting data.
In some possible implementations, the processor 610 may be one or more Central Processing Units (CPUs), which may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU) in the case where the processor 610 is one.
In some possible implementations, the processor 610 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.
In some possible implementations, the processor 610 in the network device 600 is configured to execute the computer program or instructions 621 stored in the memory 620 to perform the following operations:
transmitting configuration information, wherein the configuration information is used for determining a first CSI report, the first CSI report is a CSI report containing compressed information, and the compressed information is information after channel information is compressed;
and receiving a first CSI report according to the configuration information.
Therefore, the channel information may have the characteristics of large bit number, and the like, and the direct feedback of the channel information will cause the problems of more occupied resources, large signaling overhead, and the like, so that a mode of not directly feeding back the channel information is generally adopted. In order to reduce occupied resources, signaling overhead and the like, the embodiment of the application adopts a mode of compressing channel information, so that the compressed channel information (namely compressed information) has the characteristics of smaller bit number and the like.
In order to realize the feedback of the compressed information, the embodiment of the application adopts the CSI report to feed back the compressed information, and introduces the configuration information, so that the network equipment can send the configuration information to the terminal equipment to determine the CSI report (namely the first CSI report) containing the compressed information, and the network equipment can receive the first CSI report through the configuration information, and the terminal equipment can send the first CSI report through the configuration information, thereby realizing the feedback of the compressed information through the transmission of the first CSI report, thereby being beneficial to reducing occupied resources, reducing signaling overhead and improving precision.
It should be noted that, the specific implementation of each operation may be described in the above-illustrated method embodiment, and the network device 600 may be used to execute the above-illustrated method embodiment of the present application, which is not described herein.
10. Other related exemplary illustrations
In some possible implementations, the above method embodiments may be applied in a terminal device. That is, the execution body of the above-described method embodiment may be a terminal device, and may be a chip, a chip module, a module, or the like, which is not particularly limited.
In some possible implementations, the above-described method embodiments may be applied in a network device. That is, the execution body of the above-mentioned method embodiment may be a network device, and may be a chip, a chip module or a module, which is not limited in particular.
The embodiment of the application also provides a chip which comprises a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.
The embodiment of the application also provides a chip module, which comprises a receiving and transmitting assembly and a chip, wherein the chip comprises a processor, a memory and a computer program or instructions stored on the memory, and the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.
The embodiments of the present application also provide a computer-readable storage medium storing a computer program or instructions which, when executed, implement the steps described in the method embodiments above.
Embodiments of the present application also provide a computer program product comprising a computer program or instructions which, when executed, implement the steps described in the method embodiments above.
For the above embodiments, for simplicity of description, the same is denoted as a series of combinations of actions. It will be appreciated by persons skilled in the art that the application is not limited by the order of acts described, as some steps in embodiments of the application may be performed in other orders or concurrently. In addition, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts, steps, modules, or units, etc. that are described are not necessarily required by the embodiments of the application.
In the foregoing embodiments, the descriptions of the embodiments of the present application are emphasized, and in part, not described in detail in one embodiment, reference may be made to related descriptions of other embodiments.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, erasable programmable read-only memory (erasable programmable ROM, EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disk, a removable disk, a compact disc read-only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be located in a terminal device or a management device. The processor and the storage medium may reside as discrete components in a terminal device or management device.
Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may 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 loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
The respective apparatuses and the respective modules/units included in the products described in the above embodiments may be software modules/units, may be hardware modules/units, or may be partly software modules/units, and partly hardware modules/units. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal device, each module/unit included in the device may be implemented in hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal device, or at least some modules/units may be implemented in a software program, where the software program runs on a processor integrated within the terminal device, and the remaining (if any) part of the modules/units may be implemented in hardware such as a circuit.
The foregoing detailed description of the embodiments of the present application further illustrates the purposes, technical solutions and advantageous effects of the embodiments of the present application, and it should be understood that the foregoing description is only a specific implementation of the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application, and 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 scope of the embodiments of the present application.
Claims (54)
1. A channel state information report transmission method, applied to a terminal device, the method comprising:
acquiring configuration information, wherein the configuration information is used for determining a first Channel State Information (CSI) report, the first CSI report is a CSI report containing compressed information, and the compressed information is information after the channel information is compressed;
and sending the first CSI report according to the configuration information.
2. The method of claim 1, wherein the channel information is obtained by the terminal device by performing channel measurements on a downlink reference signal.
3. The method of claim 1, wherein the compressed information is information after the channel information is compressed, comprising:
The compressed information is information after the channel information is compressed by the artificial intelligent module.
4. The method of claim 1, wherein the number of CSI processing units occupied by the first CSI report is a first value, the first value being pre-configured, network configured, or protocol specified.
5. The method of claim 1, wherein the number of CSI processing units occupied by the first CSI report is determined by the number of channel measurement resources associated with the first CSI report.
6. The method of claim 1, wherein the number of CSI processing units occupied by the first CSI report is greater than the number of channel measurement resources associated with the first CSI report.
7. The method of claim 1, wherein the CSI calculation time requirement of the first CSI report is determined by the CSI calculation time requirement of the second CSI report;
the second CSI report is a CSI report that does not include the compressed information.
8. The method of claim 1, wherein the CSI calculation time requirement of the first CSI report is different from the CSI calculation time requirement of the second CSI report;
The second CSI report is a CSI report that does not include the compressed information.
9. The method of claim 1, wherein the first CSI report is composed of a first part and a second part, a load size of the first part is fixed, and the first part is used to determine a bit information amount in the second part;
the compressed information is located in the first portion or the second portion.
10. The method of claim 1, wherein the configuration information comprises CSI report configuration information, the CSI report configuration information being used to configure the first CSI report.
11. The method of claim 1, wherein the configuration information is used to determine a first CSI report, comprising:
the configuration information comprises first indication information;
the first indication information is configured to indicate that the first CSI report includes the compression information.
12. The method of claim 11, wherein the configuration information further comprises receive antenna number information;
the receiving antenna number information is used for indicating the number of receiving antennas required by the terminal equipment to acquire the channel information.
13. The method according to claim 11 or 12, wherein the configuration information further comprises at least one of first length information, second length information;
the first length information is used for indicating the length of the channel information;
the second length information is used for indicating the length of the compressed information.
14. The method of claim 13, wherein the first length information is determined by terminal device capability information reported by the terminal device; and/or the number of the groups of groups,
and the second length information is determined by the terminal equipment capability information reported by the terminal equipment.
15. The method of claim 1, wherein the first CSI report further comprises interference measurement information;
and the interference measurement result information is used for indicating an interference measurement result obtained by the terminal equipment according to the configuration information.
16. The method of claim 15, wherein the interference measurement information is located in a first portion or a second portion of the first CSI report.
17. The method of claim 15, wherein the interference measurement information comprises at least one of interference measurements based on CSI interference measurement signals, interference measurements based on non-zero power CSI reference signals.
18. The method of claim 17, wherein if the CSI interference measurement based on the CSI interference measurement signal is in the second portion of the first CSI report, the CSI interference measurement based on the CSI interference measurement signal is in group 0; and/or the number of the groups of groups,
if the non-zero power CSI reference signal based interference measurement is located in the second portion of the first CSI report, the non-zero power CSI reference signal based interference measurement is located in either group 0 or group 1.
19. The method according to any of claims 1, 15-18, wherein the first CSI report further comprises at least one of:
the synchronization signal block resource indication index SSBRI, the CSI reference signal resource indication index CRI, the rank indication index RI, the precoding matrix indication index PMI, the channel quality indication index CQI, and the layer indication index LI.
20. The method of claim 19, wherein the SSBRI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the CRI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the RI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the CQI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
The LI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the PMI is located in a second portion of the first CSI report.
21. The method according to any of claims 1, 15-20, wherein the first CSI report further comprises second indication information;
the second indication information is used for indicating the relevant characteristics of the compressed information.
22. The method of claim 21, wherein the relevant characteristics of the compressed information include at least one of:
the length of the channel information, the length of the compressed information, and the location of the compressed information in the artificial intelligence module.
23. The method of claim 21, wherein the second indication information is located in a first portion of the first CSI report.
24. The method of claim 1, wherein the priority of the first CSI report is determined by a first parameter, and wherein the value of the first parameter is determined by a type of information contained in the first CSI report.
25. A channel state information report transmission method, applied to a network device, the method comprising:
transmitting configuration information, wherein the configuration information is used for determining a first Channel State Information (CSI) report, the first CSI report is a CSI report containing compressed information, and the compressed information is information after the channel information is compressed;
And receiving the first CSI report according to the configuration information.
26. The method of claim 25, wherein the channel information is obtained by the terminal device by performing channel measurements on the downlink reference signals.
27. The method of claim 25, wherein the compressed information is information after the channel information is compressed, comprising:
the compressed information is information after the channel information is compressed by the artificial intelligence model.
28. The method of claim 25, wherein the number of CSI processing units occupied by the first CSI report is a first value, the first value being pre-configured, network configured, or protocol specified.
29. The method of claim 25, wherein the number of CSI processing units occupied by the first CSI report is determined by the number of channel measurement resources associated with the first CSI report.
30. The method of claim 25, wherein the number of CSI processing units occupied by the first CSI report is greater than the number of channel measurement resources associated with the first CSI report.
31. The method of claim 25, wherein the CSI computation time requirement of the first CSI report is determined by the CSI computation time requirement of the second CSI report;
The second CSI report is a CSI report that does not include the compressed information.
32. The method of claim 25, wherein the CSI calculation time requirement of the first CSI report is different from the CSI calculation time requirement of the second CSI report;
the second CSI report is a CSI report that does not include the compressed information.
33. The method of claim 25, wherein the first CSI report is composed of a first part and a second part, a load size of the first part is fixed, and the first part is used to determine a bit information amount in the second part;
the compressed information is located in the first portion or the second portion.
34. The method of claim 25, wherein the configuration information comprises CSI report configuration information for configuring the first CSI report.
35. The method of claim 25, wherein the configuration information is used to determine a first CSI report, comprising:
the configuration information comprises first indication information;
the first indication information is configured to indicate that the first CSI report includes the compression information.
36. The method of claim 35, wherein the configuration information further comprises receive antenna number information;
the receiving antenna number information is used for indicating the number of receiving antennas required by the terminal equipment to acquire the channel information.
37. The method according to claim 35 or 36, wherein the configuration information further comprises at least one of a first length information, a second length information;
the first length information is used for indicating the length of the channel information;
the second length information is used for indicating the length of the compressed information.
38. The method of claim 37, wherein the first length information is determined by terminal device capability information reported by the terminal device; and/or the number of the groups of groups,
and the second length information is determined by the terminal equipment capability information reported by the terminal equipment.
39. The method of claim 25, wherein the first CSI report further comprises interference measurement information;
and the interference measurement result information is used for indicating an interference measurement result obtained by the terminal equipment according to the configuration information.
40. The method of claim 39, wherein the interference measurement information is located in a first portion or a second portion of the first CSI report.
41. The method of claim 39, wherein the interference measurement information comprises at least one of interference measurements based on CSI interference measurement signals, interference measurements based on non-zero power CSI reference signals.
42. The method of claim 41, wherein if the CSI interference measurement based on the CSI interference measurement signal is in the second part of the first CSI report, the CSI interference measurement based on the CSI interference measurement signal is in group 0; and/or the number of the groups of groups,
if the non-zero power CSI reference signal based interference measurement is located in the second portion of the first CSI report, the non-zero power CSI reference signal based interference measurement is located in either group 0 or group 1.
43. The method of any of claims 25, 39-42, wherein the first CSI report further comprises at least one of:
the synchronization signal block resource indication index SSBRI, the CSI reference signal resource indication index CRI, the rank indication index RI, the precoding matrix indication index PMI, the channel quality indication index CQI, and the layer indication index LI.
44. The method of claim 43, wherein the SSBRI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the CRI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the RI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the CQI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the LI is located in a first portion of the first CSI report; and/or the number of the groups of groups,
the PMI is located in a second portion of the first CSI report.
45. The method of any of claims 25, 39-44, wherein the first CSI report further comprises second indication information;
the second indication information is used for indicating the relevant characteristics of the compressed information.
46. The method of claim 45, wherein the relevant characteristics of the compressed information include at least one of:
the length of the channel information, the length of the compressed information, and the location of the compressed information in the artificial intelligence module.
47. The method of claim 45, wherein the second indication information is located in a first portion of the first CSI report.
48. The method of claim 25, wherein the priority of the first CSI report is determined by a first parameter, and wherein the value of the first parameter is determined by a type of information included in the first CSI report.
49. A channel state information report transmitting apparatus, the apparatus comprising:
an obtaining unit, configured to obtain configuration information, where the configuration information is used to determine a first CSI report, where the first CSI report is a CSI report that includes compressed information, and the compressed information is information after compression processing of channel information;
and the sending unit is used for sending the first CSI report according to the configuration information.
50. A channel state information report transmitting apparatus, the apparatus comprising:
a transmitting unit, configured to transmit configuration information, where the configuration information is used to determine a first CSI report, where the first CSI report is a CSI report that includes compressed information, and the compressed information is information after compression processing of channel information;
and the receiving unit is used for receiving the first CSI report according to the configuration information.
51. A terminal device comprising a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to carry out the steps of the method according to any one of claims 1-24.
52. A network device 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 of the method of any one of claims 25-48.
53. A chip comprising a processor, wherein the processor performs the steps of the method of any one of claims 1-24 or 25-48.
54. A computer readable storage medium, characterized in that it stores a computer program or instructions which, when executed, implement the steps of the method of any one of claims 1-24 or 25-48.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210336141.5A CN116938387A (en) | 2022-03-31 | 2022-03-31 | Channel state information report transmission method and device, terminal equipment and network equipment |
| PCT/CN2023/085079 WO2023186010A1 (en) | 2022-03-31 | 2023-03-30 | Channel state information report transmission method and apparatus, and terminal device and network device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210336141.5A CN116938387A (en) | 2022-03-31 | 2022-03-31 | Channel state information report transmission method and device, terminal equipment and network equipment |
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| Publication Number | Publication Date |
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| CN116938387A true CN116938387A (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210336141.5A Pending CN116938387A (en) | 2022-03-31 | 2022-03-31 | Channel state information report transmission method and device, terminal equipment and network equipment |
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| Country | Link |
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| CN (1) | CN116938387A (en) |
| WO (1) | WO2023186010A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020091543A1 (en) * | 2018-11-02 | 2020-05-07 | 엘지전자 주식회사 | Method for reporting channel state information in wireless communication system, and device for same |
| CN111327352B (en) * | 2018-12-17 | 2021-07-16 | 华为技术有限公司 | Communication method and device |
| US11950225B2 (en) * | 2020-05-07 | 2024-04-02 | Qualcomm Incorporated | Selective channel state measurement and report for small data transfer in power saving mode |
| CN114760654A (en) * | 2021-01-08 | 2022-07-15 | 北京紫光展锐通信技术有限公司 | CSI reporting method and device |
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- 2022-03-31 CN CN202210336141.5A patent/CN116938387A/en active Pending
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- 2023-03-30 WO PCT/CN2023/085079 patent/WO2023186010A1/en unknown
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| Publication number | Publication date |
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| WO2023186010A1 (en) | 2023-10-05 |
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