CN116489695A - CSI reporting method and device - Google Patents

CSI reporting method and device Download PDF

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Publication number
CN116489695A
CN116489695A CN202210051847.7A CN202210051847A CN116489695A CN 116489695 A CN116489695 A CN 116489695A CN 202210051847 A CN202210051847 A CN 202210051847A CN 116489695 A CN116489695 A CN 116489695A
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China
Prior art keywords
csi
csi report
configuration information
information
reporting
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CN202210051847.7A
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Chinese (zh)
Inventor
王化磊
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Priority to CN202210051847.7A priority Critical patent/CN116489695A/en
Priority to PCT/CN2023/071745 priority patent/WO2023134699A1/en
Publication of CN116489695A publication Critical patent/CN116489695A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a CSI reporting method and device, wherein the method comprises the following steps: the terminal equipment receives network configuration information sent by the network equipment, wherein the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, the first information is used for indicating that a target CSI report reported by the terminal equipment comprises time domain channel attribute information, and based on the network configuration information, reporting the target CSI report, a technical scheme for reporting the time domain channel attribute information by the terminal equipment is provided, so that the terminal equipment can support reporting of the time domain channel attribute.

Description

CSI reporting method and device
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a CSI reporting method and apparatus.
Background
The current NR R18 protocol supports the functions of obtaining time domain channel properties by measurement based on a tracking reference signal (TrackingReferenceSignal, TRS), and reporting the time domain channel properties (time-domain channel properties) by a terminal device. However, there is currently no specific solution for achieving this function.
Disclosure of Invention
The embodiment of the application provides a CSI reporting method and device and a technical scheme for reporting time domain channel attribute information by terminal equipment.
In a first aspect, an embodiment of the present application provides a CSI reporting method, applied to a terminal device, where the method includes:
receiving network configuration information, wherein the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, and the first information is used for indicating that a target CSI report reported by the terminal equipment comprises time domain channel attribute information;
and reporting the target CSI report based on the network configuration information.
In a second aspect, an embodiment of the present application provides a CSI reporting method, applied to a network device, where the method includes:
transmitting network configuration information, wherein the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, and the first information is used for indicating that a target CSI report reported by terminal equipment comprises time domain channel attribute information;
and receiving the target CSI report from the terminal equipment.
In a third aspect, an embodiment of the present application provides a CSI reporting device, which is applied to a terminal device, where the device includes:
a receiving unit, configured to receive network configuration information, where the network configuration information includes channel state information CSI report configuration information, where the CSI report configuration information includes first information, where the first information is used to indicate that a target CSI report reported by the terminal device includes time domain channel attribute information;
And the sending unit is used for reporting the target CSI report based on the network configuration information.
In a fourth aspect, an embodiment of the present application provides a CSI reporting device, applied to a network device, where the device includes:
a sending unit, configured to send network configuration information, where the network configuration information includes channel state information CSI report configuration information, where the CSI report configuration information includes first information, where the first information is used to indicate that a target CSI report reported by a terminal device includes time domain channel attribute information;
and the receiving unit is used for receiving the target CSI report from the terminal equipment.
In a fifth aspect, embodiments of the present application provide a chip including a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the methods of the first or second aspects described above.
In a sixth aspect, an embodiment of the present application provides a chip module, including a transceiver component and a chip, where the chip includes 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 instructions of the steps in the method described in the first aspect or the second aspect.
In a seventh aspect, embodiments of the present application provide an electronic device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing part or all of the steps described in the methods of the first or second aspects above.
In an eighth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program for electronic data exchange, where the computer program causes a computer to perform some or all of the steps described in the method of the first or second aspect above.
In a ninth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on an electronic device, cause the electronic device to perform the method of the first or second aspect described above.
According to the technical scheme, the terminal equipment receives network configuration information sent by the network equipment, the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, the first information is used for indicating that a target CSI report reported by the terminal equipment comprises time domain channel attribute information, and reporting the target CSI report based on the network configuration information, the technical scheme for reporting the time domain channel attribute information by the terminal equipment is provided, so that the terminal equipment can support reporting of the time domain channel attribute.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;
fig. 2 is a flow chart of a CSI reporting method provided in an embodiment of the present application;
fig. 3 is a functional unit composition block diagram of a CSI reporting apparatus provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application.
It should be understood that the technical solution provided in the embodiment of the present application may be applied to various communication systems, for example: a long term evolution (Long Term Evolution, LTE) system, a 5G communication system (e.g., new Radio, NR) including a non-independent Networking (NSA) 5G mobile communication system and/or an independent networking (SA) 5G mobile communication system. The technical solution provided in the present application may also be applied to a communication system in which multiple communication technologies are integrated (for example, a communication system in which LTE technology and NR technology are integrated), or be applicable to a new variety of communication systems in the future, for example, a 6G communication system, a 7G communication system, etc., which is not limited in the embodiments of the present application. The technical solutions of the embodiments of the present application are also applicable to different network architectures, including, but not limited to, a relay network architecture, a dual connectivity architecture, a Vehicle-to-anything communication (Vehicle-to-evaluation) architecture, and so on.
The network device according to the embodiments of the present application may be a Base Station (BS), which may also be referred to as a Base Station device, and is a device deployed in a radio access network to provide a wireless communication function. The apparatus for providing a base station function in the 2G network includes, for example, a base Radio transceiver station (Base Transceiver Station, BTS) and a base station controller (Base Station Controller, BSC), the apparatus for providing a base station function in the 3G network includes a node B (NodeB) and a Radio network controller (Radio Network Controller, RNC), the apparatus for providing a base station function in the 4G network includes an evolved node B (eNB), the apparatus for providing a base station function in the wireless local area network (Wireless Local Area Networks, WLAN) is an Access Point (AP), the apparatus for providing a base station function in the 5G New Radio (NR) includes a continuously evolved node B (gNB), and the apparatus for providing a base station function in the future New communication system, and the like.
The embodiment of the application relates to a device with a wireless communication function, wherein the terminal device can be a mobile phone (mobile phone), a tablet personal 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 in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in smart home (smart home), and the like. The terminal device may also be a handheld device, a vehicle mounted device, a wearable device, a computer device or other processing device connected to a wireless modem, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, abbreviated PLMN), etc. Terminal devices in different networks may be called different names, for example: a user equipment, access terminal, subscriber unit, subscriber Station, mobile Station (MS), remote Station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user equipment, cellular telephone, cordless telephone, session initiation protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL) Station, personal digital assistant (Personal Digital Assistant, PDA), terminal equipment in a 5G network or future evolution network, and the like, as embodiments of the present application are not limited in this respect.
Referring to fig. 1, fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application. As shown in fig. 1, the wireless communication system may include a network device and a terminal device. The network device may communicate with the terminal device via wireless communication. In the process of the network device communicating with the terminal device, the network device may configure appropriate Signal state information Reference Signal (Channel State Information-Reference Signal, CSI-RS) resources or synchronization signals and PBCH blocks (Synchronization Signal and PBCH block, SSB) for the terminal device, then the terminal device measures the CSI-RS or SSB and calculates required Signal state information (Channel State Information, CSI), and reports the CSI, and the network device may perform scheduling adjustment and beam management related work according to the reported content.
It will be understood that the form and number of network devices and terminal devices shown in fig. 1 are for example only and are not limiting of the embodiments of the present application.
One CSI reporting configuration may currently associate one CSI resource set or 2 CSI resource sets. When the CSI resource set is configured as an aperiodic TRS resource set, a reporting quality (reporting quality) included in the CSI reporting configuration is set to 'none'; for periodic TRS resource sets, the current protocol does not support configuration association with one CSI reporting configuration. And currently support reporting of time domain channel properties via TRS-based measurements and terminal devices in the NR R18 protocol. However, there is currently no specific solution for achieving this function.
In order to solve the above problems, the present application proposes a CSI reporting method, where a network device sends network configuration information to a terminal device, where the network configuration information indicates the terminal device to report a CSI report carrying time domain channel attribute information, and the terminal device reports the CSI report including the time domain channel attribute information after receiving the network configuration information, so that the terminal device can support reporting of time domain channel attribute.
In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 2, fig. 2 is a flow chart of a CSI reporting method according to an embodiment of the present application, which is applied to the wireless communication system shown in fig. 1. As shown in fig. 2, the method includes the following steps.
S210, the network equipment sends network configuration information to the terminal equipment, wherein the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, and the first information is used for indicating that a target CSI report reported by the terminal equipment comprises time domain channel attribute information.
Before the terminal device performs CSI measurement and CSI reporting, the network device may send network configuration information to the terminal device, and the terminal device may perform CSI measurement and CSI reporting according to the network configuration information.
In the embodiment of the application, in order for the terminal device to support reporting of the time domain channel attribute, the network device may send network configuration information to the terminal device, where the network configuration information may be information configured by a radio resource control (radio resource control, RRC) higher layer. Specifically, the network configuration information may include CSI report configuration (CSI-ReportConfig) information, where the CSI report configuration information includes relevant configuration parameters and/or first information reported by CSI, and the first information may indicate that the terminal device carries time domain channel attribute information in the CSI report reported at this time, so that the network device may improve matching degree between CSI applied by the network device and a channel at a current time according to the time domain channel attribute information, and further improve data transmission performance. For example, the CSI report configuration information includes first information, according to which the terminal device may know that the reported target CSI report needs to carry time domain attribute information.
The first information may indicate, in a display or implicit manner, that the terminal device reports the time domain channel attribute information. For example, the first information may use 1 bit to display an indication, and of course, may also use other bit numbers, for example, the network device configures the terminal device to need to report the time domain channel attribute information, where the first information may take a value of 1; the network device does not configure the terminal device to report the attribute information of the time domain channel, and the first information can take a value of 0.
For example, the first information may be reporting quality (report number), and the terminal device implicitly knows whether to report the time domain channel attribute information according to the specific content of the reporting quality. For example, if the reportquality is not configured as "none" and the CSI resource associated with the CSI report is TRS, the terminal device needs to report the time domain channel attribute information; if the reportquality is configured as "none", the terminal device may not need to report the time domain channel attribute information.
Optionally, the time domain channel attribute information includes at least one of: doppler shift, doppler spread, delay spread, mean delay, doppler shift difference, doppler spread difference, delay spread difference, mean delay difference, doppler shift change rate, doppler spread change rate, delay spread change rate, mean delay change rate.
Specifically, the channel expansion is an important characteristic of the wireless channel, and the doppler shift, the doppler expansion, the delay expansion and the average delay are related parameter indexes in the channel expansion, which affect the wireless communication quality between the network device and the terminal device. Therefore, the time domain channel attribute information is reported to the network equipment, so that the network equipment can select better proper wave beams, and the system performance is improved.
In the embodiment of the application, the network equipment indicates the terminal equipment to report the time domain channel attribute information, so that the network equipment can acquire the current channel condition more comprehensively according to the reported time domain channel attribute information, the matching degree of the CSI applied by the network equipment and the channel at the current moment is improved, and the data transmission performance is further improved.
Optionally, the CSI report configuration information further includes a reportquality, which is not configured as a none.
In the embodiment of the present application, since the network device needs the terminal device to report the time domain channel attribute information, the network device may not configure the reporting quality in the CSI report configuration as none, and indicates that the terminal needs to report the measurement content. For example, the measurement content that needs to be reported by the terminal device may further include auxiliary information (such as (channel quality Indication (Channel Quality Indicator, CQI), precoding Indication (Precoding Matrix Indicator, PMI), rank Indication (RI), etc.) for providing scheduling aspect to the network device, and may also include information (such as CSI reference signal received power (CSI-Reference Signal Receiving Power, cri-RSRP), SSB-Index-RSRP, etc.) for providing beam (beam) management to the network device, which is not limited in this embodiment of the present application.
In one possible example, the network configuration information further includes CSI resource configuration information including a periodic set of tracking reference signal TRS resources or an aperiodic set of TRS resources.
Wherein, the network device configures a CSI report configuration, and configures one or more CSI measurement resource sets corresponding to the CSI report configuration, each CSI measurement resource set may include one or more CSI measurement resources, and each CSI measurement resource set may include a channel measurement resource set and/or an interference measurement resource set. For example, the CSI resource configuration information further includes one or more CSI resource sets.
Wherein the TRS may be used for time-frequency tracking and/or doppler spread estimation by the terminal device, etc. The terminal device in the application supports reporting time domain channel attribute information and also supports measurement based on TRS. Therefore, the network equipment configures the CSI report configuration, and can configure a TRS resource set associated with the CSI report configuration for the terminal equipment to perform TRS measurement and CSI reporting, namely, the CSI-RS resource configured by the network equipment needs to be the TRS resource. The TRS resource set can be a periodic TRS resource set, so that the terminal equipment can periodically track time offset, frequency offset, doppler expansion and the like; the TRS resource set may also be an aperiodic TRS resource set, which allows the network device to decide whether to send a TRS as needed, and inform the terminal device of the existence and configuration of the TRS.
S220, the terminal equipment receives the network configuration information and reports the target CSI report based on the network configuration information.
After the network device obtains the CSI report configuration information and the corresponding CSI resource configuration information, the CSI report configuration information may be sent to the terminal device through a higher layer signaling or a physical layer signaling. At this time, the terminal device may acquire CSI report configuration information and CSI resource configuration information from the network device. And generating a target CSI report according to the CSI report configuration information and the TRS resource set.
Further, in the process of generating the target CSI report by the terminal device, one or more TRS measurement resources may be selected from the TRS resource set according to the indication of the network device, and the target CSI report may be generated according to the selected one or more TRS measurement resources, where CSI information in the target CSI report includes time domain channel attribute information.
For example, if the network device indicates that the terminal device needs to report other measurement contents, in the process of generating the target CSI report by the terminal device, N CSI measurement resources may be selected from one or more CSI resource sets, and the target CSI report may be generated according to the selected N CSI measurement resources, where CSI information in the target CSI report may include time domain channel attribute information, CSI related information, and L1-RSRP related information. Wherein N is an integer greater than 0 and less than or equal to M, and M is the number of CSI measurement resources in the CSI resource set.
In the current protocol, for CSI reporting, the protocol specifies its priority determination mode. The CSI reporting is associated with a priority value thereof, and the terminal device can respectively calculate the priority value of each CSI report to be reported according to a priority calculation formula, and further sequentially process the reporting of the CSI according to the magnitude of the priority value.
Optionally, the CSI reporting coefficient of the target CSI report is the same as the CSI reporting coefficient of the first CSI report, where the CSI reporting coefficient is a coefficient used to characterize whether the CSI report carries layer one reference signal received power L1-RSRP or layer one signal to interference plus noise ratio L1-SINR in a priority calculation formula of the CSI report, and the first CSI report carries CSI acquisition information.
When the resources are limited, the terminal device can determine the reporting sequence of the CSI report according to the priority value of the CSI report, and the higher the priority represented by the priority value, the more preferentially the terminal device can process. Namely, the time-frequency resource of transmission is limited, and the terminal equipment can give up the reporting of the CSI with lower (drop) priority; the terminal device may not update the CSI with low priority, i.e. not perform the computation of the CSI with low priority, when the computation resource CPU is limited.
In the embodiment of the present application, the terminal device may calculate the priority value of the CSI report according to the measurement content included in the CSI report, and report the priority value of the CSI. Wherein the terminal device can determine the priority value of the target CSI report according to a preset priority formula, and the priority value Pri of the target CSI report iCSI (y, k, c, s) can be expressed specifically as:
Pri iCSI (y,k,c,s)=2*N cells *M s *y+N cells *M s *k+M s *c+s。
specifically, y=0 may be used for aperiodic CSI reporting carried on a physical uplink shared channel PUSCH, y=1 may be used for semi-persistent CSI reporting carried on a PUSCH, y=2 may be used for semi-persistent CSI reporting carried on a physical uplink control channel PUCCH, and y=3 may be used for periodic CSI reporting carried on a PUCCH. The N is cells Specifically, the value of the higher layer parameter maxNrofServingCells, the value of the reportConfigID, the value of the M s Specifically, the value of the higher layer parameter maxnrofcsirinoteconfiguration may be set. k=0 may be used for CSI reports carrying L1-RSRP or L1-SINR, and k=1 may be used for CSI reports carrying non-L1-RSRP or L1-SINR. If a CSI reportPri associated with A iCSI (y, k, c, s) has a value less than the Pri associated with one CSI report B iCSI And (y, k, c, s) is higher than the priority of the CSI report A is higher than that of the CSI report B.
Wherein L1-RSRP represents the reference signal received power (Reference Signal Receiving Power, RSRP) of the physical layer; L1-SINR represents the signal-to-interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR) of the physical layer.
In the current protocol, CSI reports either carry L1-RSRP or L1-SINR, or carry CSI acquisition information, such as RI, and/or PMI, and/or CQI, etc., so in the current protocol, there are simply two main categories: CSI reports carrying L1-RSRP or L1-SINR, CSI reports not carrying L1-RSRP or L1-SINR. In the embodiment of the present application, since the target CSI report includes time domain channel attribute information, which is different from L1-RSRP, L1-SINR, and CSI acquisition information, the terminal device may set the value of the CSI reporting coefficient k of the target CSI report to be the same as or different from the CSI reporting coefficient k of the CSI report carrying CSI acquisition information or carrying L1-RSRP or L1-SINR. And then, according to the type of the CSI, the priority of the target CSI report is calculated by the cell index and the CSI-reporConfigId. Specifically, the target CSI report includes time domain channel attribute information, so the terminal device may set the value of the CSI reporting coefficient k of the target CSI report to k=0, may set k=1, may set k=2, may set k=1.5, may set k=0.5, may set k= -0.5, and may set k= -1.
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 in the same meaning are equally applicable to the present application, that is, the present application does not limit the names of these parameters.
It should be noted that, regarding a specific manner in which the terminal device interacts with the network device using the priority level of the CSI report, reference may be made to the prior art, which is not limited in this embodiment of the present invention.
Optionally, the number of CSI processing units CPUs occupied by the target CSI report is any one of the following: 1. 4, 0.
Wherein, the terminal equipment needs to occupy resources in the process of carrying out the CSI measurement, and the CSI processing unit (CSI processing unit, CPU) represents the capability of the terminal equipment for processing the CSI. The different numbers of CPUs occupied by the CSI report indicate different processing capacities of the terminal equipment on the CSI report, and the more the number of the occupied CPUs is, the more processing capacity is consumed for obtaining the CSI report. The terminal device may indicate its processing power in advance and/or its number of CSI N that it can calculate simultaneously CPU . If a terminal device can calculate N simultaneously CPU A plurality of CSI, indicating that the terminal equipment has N CPU The CPUs process the CSI reports. The number of CPUs occupied per CSI report is specified in the current protocol, as well as the time taken to occupy the CPU.
In the embodiment of the present application, in the process of performing CSI measurement and generating the target CSI report by the terminal device, 1 CPU, 4 CPUs, or 0 CPUs may be occupied, which is not limited in the embodiment of the present application. For example, the terminal device may calculate the CSI number N simultaneously based on the CSI number N CPU And/or the number of currently unoccupied CPUs to select the number of CPUs occupied by the target CSI report. For example, the terminal device may also randomly select the number of CPUs occupied by the target CSI report from 1, 4, and 0.
Optionally, the CSI processing time requirement of the target CSI report is the same as the CSI processing time requirement of a second CSI report, where the second CSI report carries L1-RSRP or L1-SINR.
In the embodiment of the present application, when CSI information reported to a network device by a terminal device is time domain channel attribute information, the CSI processing time of a target CSI report may be set to be the same as the CSI processing time of a CSI report carrying L1-RSRP or L1-SINR.
And S230, the network equipment receives the target CSI report.
After receiving the target CSI report sent by the terminal device, the network device can obtain the current channel condition more comprehensively according to the time domain channel attribute information carried by the target CSI report, so that the matching degree of the CSI applied by the network device and the current time channel is improved, and further, the data transmission performance is improved.
It can be seen that the present application proposes a CSI reporting method, where a terminal device receives network configuration information sent by a network device, where the network configuration information includes channel state information CSI report configuration information, where the CSI report configuration information includes first information, where the first information is used to indicate that a target CSI report reported by the terminal device includes time domain channel attribute information, and based on the network configuration information, report the target CSI report, and proposes a technical solution for reporting time domain channel attribute information by the terminal device, so that the terminal device can support reporting of time domain channel attribute.
The foregoing description of the embodiments of the present application has been presented primarily in terms of a method-side implementation. It will be appreciated that the 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 elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied as hardware or a combination 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. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
Referring to fig. 3, fig. 3 is a block diagram illustrating functional units of a CSI reporting apparatus 300 according to an embodiment of the present application, where the apparatus 300 may be applied to a terminal device, and the apparatus may also be applied to a network device, and the apparatus 300 includes: a receiving unit 310 and a transmitting unit 320.
In a possible implementation manner, the apparatus 300 is configured to execute each flow and step corresponding to the terminal device in the above indication method.
The receiving unit 310 is configured to receive network configuration information, where the network configuration information includes channel state information CSI report configuration information, where the CSI report configuration information includes first information, where the first information is used to indicate that a target CSI report reported by the terminal device includes time domain channel attribute information;
the sending unit 320 is configured to report the target CSI report based on the network configuration information.
Optionally, the time domain channel attribute information includes at least one of: doppler shift, doppler spread, delay spread, mean delay, doppler shift difference, doppler spread difference, delay spread difference, mean delay difference, doppler shift change rate, doppler spread change rate, delay spread change rate, mean delay change rate.
Optionally, the CSI report configuration information further includes a reportquality, which is not configured as a none.
Optionally, the network configuration information further includes CSI resource configuration information, where the CSI resource configuration information includes a periodic tracking reference signal TRS resource set or an aperiodic TRS resource set.
Optionally, the CSI reporting coefficient of the target CSI report is the same as the CSI reporting coefficient of the first CSI report, where the CSI reporting coefficient is a coefficient used to characterize whether the CSI report carries layer one reference signal received power L1-RSRP or layer one signal to interference plus noise ratio L1-SINR in a priority calculation formula of the CSI report, and the first CSI report carries CSI acquisition information.
Optionally, the number of CSI processing units CPUs occupied by the target CSI report is any one of the following: 1. 4, 0.
Optionally, the CSI processing time requirement of the target CSI report is the same as the CSI processing time requirement of a second CSI report, where the second CSI report carries L1-RSRP or L1-SINR.
In another possible implementation manner, the apparatus 300 is configured to execute each flow and step corresponding to the network device in the above indication method.
The sending unit 320 is configured to send network configuration information, where the network configuration information includes channel state information CSI report configuration information, where the CSI report configuration information includes first information, where the first information is used to indicate that a target CSI report reported by a terminal device includes time domain channel attribute information;
The receiving unit 310 is configured to receive the target CSI report from the terminal device.
Optionally, the time domain channel attribute information includes at least one of: doppler shift, doppler spread, delay spread, mean delay, doppler shift difference, doppler spread difference, delay spread difference, mean delay difference, doppler shift change rate, doppler spread change rate, delay spread change rate, mean delay change rate.
Optionally, the CSI report configuration information further includes a reportquality, which is not configured as a none.
Optionally, the network configuration information further includes CSI resource configuration information, where the CSI resource configuration information includes a periodic tracking reference signal TRS resource set or an aperiodic TRS resource set.
Optionally, the CSI reporting coefficient of the target CSI report is the same as the CSI reporting coefficient of the first CSI report, where the CSI reporting coefficient is a coefficient used to characterize whether the CSI report carries layer one reference signal received power L1-RSRP or layer one signal to interference plus noise ratio L1-SINR in a priority calculation formula of the CSI report, and the first CSI report carries CSI acquisition information.
Optionally, the number of CSI processing units CPUs occupied by the target CSI report is any one of the following: 1. 4, 0.
Optionally, the CSI processing time requirement of the target CSI report is the same as the CSI processing time requirement of a second CSI report, where the second CSI report carries L1-RSRP or L1-SINR.
It should be appreciated that the apparatus 300 herein is embodied in the form of functional units. The term "unit" herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 300 may be specifically a terminal device or a network device in the foregoing embodiment, and the apparatus 300 may be configured to perform each flow and/or step corresponding to the terminal device or the network device in the foregoing method embodiment, which is not repeated herein.
The apparatus 300 of each of the above embodiments has a function of implementing the corresponding steps executed by the terminal device or the network device in the above method; the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the transmitting unit 320 may be replaced by a transmitter, and the receiving unit 310 may be replaced by a receiver, to perform the transceiving operations and the associated processing operations in the respective method embodiments, respectively.
In the embodiments of the present application, the apparatus 300 may also be a chip or a chip system, for example: system on chip (SoC). Correspondingly, the detection unit may be a detection circuit of the chip, which is not limited herein.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application, where the electronic device includes: a processor, a memory, a communication interface, and one or more programs; the one or more programs are stored in the memory and configured to be executed by the one or more processors.
In a possible implementation manner, the electronic device is a terminal device, and the program includes instructions for performing the following steps:
receiving network configuration information, wherein the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, and the first information is used for indicating that a target CSI report reported by the terminal equipment comprises time domain channel attribute information;
and reporting the target CSI report based on the network configuration information.
In another possible implementation manner, the electronic device is a network device, and the program includes instructions for performing the following steps:
Transmitting network configuration information, wherein the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, and the first information is used for indicating that a target CSI report reported by terminal equipment comprises time domain channel attribute information;
and receiving the target CSI report from the terminal equipment.
All relevant contents of each scenario related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.
It should be appreciated that the memory described above may include read only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store information of the device type.
In an embodiment of the present application, the processor of the above apparatus may be a central processing unit (Central Processing Unit, CPU), which may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It should be understood that references to "at least one" in embodiments of the present application mean one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
And, unless specified to the contrary, the embodiments of the present application refer to the ordinal terms "first," "second," etc., as used to distinguish between multiple objects, and are not to be construed as limiting the order, timing, priority, or importance of the multiple objects. For example, the first information and the second information are only for distinguishing different information, and are not indicative of the difference in content, priority, transmission order, importance, or the like of the two information.
In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software elements in the processor for execution. The software elements may be located in a random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor executes instructions in the memory to perform the steps of the method described above in conjunction with its hardware. To avoid repetition, a detailed description is not provided herein.
The present application also provides a chip comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps of any of the methods described in the method embodiments above.
The embodiment of the application also provides a chip module, which comprises a transceiver component 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 instructions of the steps in any one of the methods described in the method embodiments.
The present application also provides a computer storage medium storing a computer program for electronic data exchange, the computer program causing a computer to execute some or all of the steps of any one of the methods described in the method embodiments above.
Embodiments of the present application also provide a computer program product comprising instructions which, when run on an electronic device, cause the electronic device to perform part or all of the steps of any of the methods described in the method embodiments above.
It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and the division of elements, such as those described above, is merely a logical function division, and may be implemented in other manners, such as multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, or may be in electrical or other forms.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purposes of the embodiments of the present application.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution contributing to the prior art or in the form of a software product stored in a memory, comprising several instructions for causing a computer device (which may be a personal computer, a server or TRP, etc.) to perform all or part of the steps of the methods of the various embodiments of the present application. And the aforementioned memory includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs associated hardware, and the program may be stored in a computer readable memory, which may include: flash disk, ROM, RAM, magnetic or optical disk, etc.
The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, the above examples being provided solely to assist in the understanding of the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims (20)

1. A CSI reporting method, applied to a terminal device, the method comprising:
receiving network configuration information, wherein the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, and the first information is used for indicating that a target CSI report reported by the terminal equipment comprises time domain channel attribute information;
and reporting the target CSI report based on the network configuration information.
2. The method of claim 1, wherein the time domain channel attribute information comprises at least one of:
doppler shift, doppler spread, delay spread, mean delay, doppler shift difference, doppler spread difference, delay spread difference, mean delay difference, doppler shift change rate, doppler spread change rate, delay spread change rate, mean delay change rate.
3. The method of claim 1 or 2, wherein the CSI reporting configuration information further comprises a reportquality, the reportquality not configured as none.
4. The method of any of claims 1-3, wherein the network configuration information further comprises CSI resource configuration information comprising a periodic set of tracking reference signal, TRS, resources or a non-periodic set of TRS resources.
5. The method according to any one of claims 1-4, wherein the CSI reporting coefficient of the target CSI report is the same as the CSI reporting coefficient of a first CSI report, the CSI reporting coefficient being a coefficient used for characterizing whether the CSI report carries layer one reference signal received power L1-RSRP or layer one signal to interference plus noise ratio L1-SINR in a priority calculation formula of the CSI report, the first CSI report carrying CSI acquisition information.
6. The method according to any of claims 1-5, wherein the number of CSI processing unit CPUs occupied by the target CSI report is any of: 1. 4, 0.
7. The method of any of claims 1-6, wherein a CSI processing time requirement of the target CSI report is the same as a CSI processing time requirement of a second CSI report, the second CSI report carrying either L1-RSRP or L1-SINR.
8. A CSI reporting method, applied to a network device, the method comprising:
transmitting network configuration information, wherein the network configuration information comprises Channel State Information (CSI) report configuration information, the CSI report configuration information comprises first information, and the first information is used for indicating that a target CSI report reported by terminal equipment comprises time domain channel attribute information;
and receiving the target CSI report from the terminal equipment.
9. The method of claim 8, wherein the time domain channel attribute information comprises at least one of:
doppler shift, doppler spread, delay spread, mean delay, doppler shift difference, doppler spread difference, delay spread difference, mean delay difference, doppler shift change rate, doppler spread change rate, delay spread change rate, mean delay change rate.
10. The method of claim 8 or 9, wherein the CSI reporting configuration information further comprises a reportquality, the reportquality not configured as none.
11. The method of any of claims 8-10, wherein the network configuration information further comprises CSI resource configuration information comprising a periodic set of tracking reference signal, TRS, resources or a non-periodic set of TRS resources.
12. The method according to any one of claims 8-11, wherein the CSI reporting coefficient of the target CSI report is the same as the CSI reporting coefficient of a first CSI report, the CSI reporting coefficient being a coefficient used for characterizing whether the CSI report carries layer one reference signal received power L1-RSRP or layer one signal to interference plus noise ratio L1-SINR in a priority calculation formula of the CSI report, the first CSI report carrying CSI acquisition information.
13. The method according to any of claims 8-12, wherein the number of CSI processing unit CPUs occupied by the target CSI report is any of: 1. 4, 0.
14. The method according to any of claims 8-13, wherein the CSI processing time requirement of the target CSI report is the same as the CSI processing time requirement of a second CSI report carrying L1-RSRP or L1-SINR.
15. A CSI reporting apparatus, applied to a terminal device, the apparatus comprising:
a receiving unit, configured to receive network configuration information, where the network configuration information includes channel state information CSI report configuration information, where the CSI report configuration information includes first information, where the first information is used to indicate that a target CSI report reported by the terminal device includes time domain channel attribute information;
And the sending unit is used for reporting the target CSI report based on the network configuration information.
16. A CSI reporting apparatus, applied to a network device, the apparatus comprising:
a sending unit, configured to send network configuration information, where the network configuration information includes channel state information CSI report configuration information, where the CSI report configuration information includes first information, where the first information is used to indicate that a target CSI report reported by a terminal device includes time domain channel attribute information;
and the receiving unit is used for receiving the target CSI report from the terminal equipment.
17. A chip comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-7 or 8-14.
18. A chip module comprising a transceiver component and a chip, the chip comprising a processor, a memory and a computer program or instructions stored on the memory, the processor executing the computer program or instructions to implement the instructions of the steps of the method of any one of claims 1-7 or 8-14.
19. An electronic device, characterized in that the terminal device comprises a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps of the method of any of claims 1-7 or 8-14.
20. A computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the steps of the method according to any one of claims 1-7 or claims 8-14.
CN202210051847.7A 2022-01-17 2022-01-17 CSI reporting method and device Pending CN116489695A (en)

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WO2018143721A1 (en) * 2017-02-02 2018-08-09 엘지전자(주) Method for reporting channel state information in wireless communication system and apparatus for same
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