WO2022041840A1 - 一种上报、接收csi的方法及对应装置 - Google Patents

一种上报、接收csi的方法及对应装置 Download PDF

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Publication number
WO2022041840A1
WO2022041840A1 PCT/CN2021/092991 CN2021092991W WO2022041840A1 WO 2022041840 A1 WO2022041840 A1 WO 2022041840A1 CN 2021092991 W CN2021092991 W CN 2021092991W WO 2022041840 A1 WO2022041840 A1 WO 2022041840A1
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Prior art keywords
csi
message
preset
reporting
terminal device
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PCT/CN2021/092991
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English (en)
French (fr)
Inventor
张永平
周英楠
余政
李铁
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华为技术有限公司
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Priority to EP21859685.6A priority Critical patent/EP4195789A4/en
Priority to JP2023513514A priority patent/JP2023538698A/ja
Publication of WO2022041840A1 publication Critical patent/WO2022041840A1/zh
Priority to US18/172,501 priority patent/US20230198595A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0866—Checking the configuration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and a corresponding device for reporting and receiving channel state information (Channel State Information, CSI).
  • CSI Channel State Information
  • the network device performs CSI reporting configuration or reconfiguration, or serving cell activation, or bandwidth part (Band Width Part, BWP) switching, or semi-persistent CSI reporting (Semi-Persistent CSI reporting, SP-CSI) activation and other processes to the terminal device, It generally includes the following steps: the first step, the network device issues configuration or activation signaling; the second step, the terminal device correctly receives the signaling; The activation command works fine. In the above three-step process, the time of the third step is ambiguous for network devices, because each terminal device has different processing capabilities, and the time required to complete the corresponding configuration is also different, even for the same terminal device in different states, The time required to complete the corresponding configuration will also vary.
  • the network device Due to the existence of the fuzzy period, the network device often misunderstands the CSI reporting status of the terminal device. For example, after the network device issues configuration or activation signaling for a period of time, the network device assumes that the terminal device has completed the corresponding configuration or activation, so it reports CSI in the Uplink Control Information (UCI), but the actual terminal device does not The corresponding configuration is not completed, and the CSI is not reported in the UCI; or, after the network device sends the configuration or activation signaling for a period of time, the network device assumes that the terminal device has not completed the corresponding configuration or activation, so the CSI is not reported in the UCI. However, the actual terminal device has completed the corresponding configuration or activation, and reported the CSI in the UCI.
  • UCI Uplink Control Information
  • UCI may also contain other uplink data, such as Hybrid Automatic Repeat request (HARQ) feedback, which will cause the other uplink data to be discarded, which will affect the link performance. cause great impact.
  • HARQ Hybrid Automatic Repeat request
  • Embodiments of the present application provide a method and a corresponding apparatus for reporting and receiving CSI, which can improve the transmission performance of the uplink.
  • a method for reporting CSI is provided, and the method can be applied to a terminal device, or can also be applied to a chip inside the terminal device. Taking the method applicable to a terminal device as an example, in this method, the terminal device determines the CSI state; when the CSI state is invalid, the preset CSI is sent.
  • the CSI status of the terminal device in the configuration ambiguity period is invalid, so the terminal device sends the preset CSI when the CSI status is invalid, so that the terminal device and the network device can decide whether to discard the CSI during the configuration ambiguity period. (i.e., do not discard CSI, and terminal equipment reports preset CSI), thereby avoiding other important uplink information (such as HARQ feedback due to inconsistent understanding between network equipment and terminal equipment on whether to discard CSI during the configuration ambiguity period in the prior art). ) loss problem, which can improve the performance of uplink transmission.
  • the determining the CSI state specifically includes determining the CSI state when the CSI reading opportunity arrives.
  • the terminal device determines the CSI status when the CSI reading timing arrives. On the one hand, it can avoid the problem of prematurely determining the CSI status leading to misjudgment of the CSI status, and on the other hand, it can avoid the failure to report the CSI in time due to the late determination of the CSI status. problems, thereby improving the reliability of the program.
  • the read timing is associated with the CSI reporting timing and arrives before the CSI reporting timing
  • the sending preset CSI is sending preset CSI when the CSI reporting timing arrives .
  • the reading timing is associated with the CSI reporting timing, which can ensure the accuracy of the CSI content reported by the terminal device at each CSI reporting timing, and further improve the reliability of the solution.
  • the CSI state is set to be invalid.
  • This embodiment clarifies the moment when the terminal device sets the CSI state to be invalid, that is, sets the CSI state to be invalid for the received preset message, which can further improve the reliability of the solution.
  • the preset message is one of the following messages: a CSI reporting configuration message; a CSI reconfiguration message; a serving cell activation message; a bandwidth part switching message; a semi-persistent CSI reporting activation message.
  • the CSI state is set to be valid.
  • the terminal device calculates the CSI, indicating that the configuration ambiguity period has ended (that is, the configuration has been completed), and the terminal device can complete the CSI measurement and generate valid CSI information.
  • the CSI status is set to valid in time. , so that the terminal equipment starts to report valid CSI, which can further improve the performance of uplink transmission.
  • the preset CSI is default CSI.
  • a method for reporting CSI is provided, and the method can be applied to a terminal device, or can also be applied to a chip inside the terminal device.
  • the terminal device receives a preset message; when the preset message causes it to fail to obtain valid CSI before the CSI reporting opportunity arrives, when the CSI reporting opportunity arrives, the terminal device sends a preset message. Set CSI.
  • the terminal device in the embodiment of the present application when the terminal device in the embodiment of the present application receives a preset message from the network device, and the preset message causes it to fail to obtain valid CSI before the CSI reporting opportunity arrives, when the CSI reporting opportunity arrives , sending the preset CSI, so that the network device and the terminal device can reach an agreement on whether to discard the CSI during the configuration ambiguity period (that is, not discard the CSI, and report the preset CSI), thereby avoiding the network device and the terminal device in the prior art.
  • the problem of loss of other important uplink information (such as HARQ feedback) caused by inconsistent understanding of whether to discard CSI during the configuration ambiguity period can improve the performance of uplink transmission.
  • the preset message is one of the following messages: a CSI reporting configuration message; a CSI reconfiguration message; a serving cell activation message; a bandwidth part switching message; a semi-persistent CSI reporting activation message.
  • the preset CSI is default CSI.
  • a method for receiving CSI is provided, and the method can be applied to a network device, or can also be applied to a chip inside the network device. Taking the method that the method can be applied to a network device as an example, in this method, the network device sends a preset message; and receives the preset CSI at the CSI reporting opportunity.
  • the preset message is one of the following messages: a CSI reporting configuration message; a CSI reconfiguration message; a serving cell activation message; a bandwidth part switching message; a semi-persistent CSI reporting activation message.
  • the preset CSI is default CSI.
  • a communication apparatus which may be, for example, a terminal device or a chip device disposed inside the terminal device. module.
  • the apparatus may include: a processing unit, configured to determine the CSI state; and a sending unit, configured to send the preset CSI when the CSI state is invalid.
  • the processing unit is specifically configured to: determine the CSI state when the CSI reading opportunity arrives.
  • the read timing is associated with the CSI reporting timing and arrives before the CSI reporting timing
  • the processing unit is specifically configured to: when the CSI reporting timing arrives, send a preset CSI.
  • the apparatus further includes a receiving unit, configured to: receive a preset message; the processing unit is further configured to: set the CSI status to invalid for the received preset message.
  • the preset message is one of the following messages: a CSI reporting configuration message; a CSI reconfiguration message; a serving cell activation message; a bandwidth part switching message; a semi-persistent CSI reporting activation message.
  • the processing unit is further configured to: when the CSI is obtained by calculation, set the CSI state to be valid.
  • the preset CSI is default CSI.
  • a communication apparatus which may be, for example, a terminal device or a chip device provided inside the terminal device. module.
  • the apparatus may include: a receiving unit, configured to receive a preset message; and a sending unit, configured to send a message when the preset message fails to obtain valid CSI before the CSI reporting opportunity arrives, when the CSI reporting opportunity arrives.
  • a receiving unit configured to receive a preset message
  • a sending unit configured to send a message when the preset message fails to obtain valid CSI before the CSI reporting opportunity arrives, when the CSI reporting opportunity arrives.
  • Default CSI CSI.
  • the preset message is one of the following messages: a CSI reporting configuration message; a CSI reconfiguration message; a serving cell activation message; a bandwidth part switching message; and a persistent CSI reporting activation message.
  • the preset CSI is default CSI.
  • a communication apparatus which may be, for example, a network device or a chip device disposed inside the network device. module.
  • the apparatus may include: a sending unit, configured to send a preset message; and a receiving unit, configured to receive the preset CSI at a CSI reporting opportunity.
  • the preset message is one of the following messages: a CSI reporting configuration message; a CSI reconfiguration message; a serving cell activation message; a bandwidth part switching message; a semi-persistent CSI reporting activation message.
  • the preset CSI is default CSI.
  • a communication device comprising: at least one processor; and a communication interface communicatively connected to the at least one processor; the at least one processor executes instructions stored in a memory so that the device passes the The communication interface executes the method described in the first aspect or any possible implementation manner of the first aspect.
  • the memory is located outside the device.
  • the apparatus includes the memory connected to the at least one processor, the memory storing instructions executable by the at least one processor.
  • a communication device comprising: at least one processor; and a communication interface communicatively connected to the at least one processor; the at least one processor executes instructions stored in a memory, so that the device passes the The communication interface executes the method described in the second aspect or any possible implementation manner of the second aspect.
  • the memory is located outside the device.
  • the apparatus includes the memory connected to the at least one processor, the memory storing instructions executable by the at least one processor.
  • a communication apparatus comprising: at least one processor; and a communication interface communicatively connected to the at least one processor; The communication interface executes the method described in the third aspect or any possible implementation manner of the third aspect.
  • the memory is located outside the device.
  • the apparatus includes the memory connected to the at least one processor, the memory storing instructions executable by the at least one processor.
  • a tenth aspect provides a computer-readable storage medium, comprising a program or an instruction, when the program or instruction is run on a computer, the method described in the first aspect or any possible implementation manner of the first aspect is made be executed.
  • a computer-readable storage medium comprising a program or an instruction, which, when the program or instruction is run on a computer, makes the second aspect or any possible implementation manner of the second aspect described in the second aspect method is executed.
  • a twelfth aspect provides a computer-readable storage medium, comprising a program or an instruction, which, when the program or instruction is run on a computer, makes the third aspect or any possible implementation of the third aspect described in the third aspect method is executed.
  • a thirteenth aspect provides a chip, which is coupled to a memory and configured to read and execute program instructions stored in the memory, so that the first aspect or any possible implementation manner of the first aspect is described in the first aspect. method is executed.
  • a fourteenth aspect provides a chip, which is coupled to a memory and configured to read and execute program instructions stored in the memory, so that the second aspect or any possible implementation manner of the second aspect is described in the second aspect. method is executed.
  • a fifteenth aspect provides a chip, which is coupled to a memory and configured to read and execute program instructions stored in the memory, so that the third aspect or any possible implementation manner of the third aspect is described in the third aspect. method is executed.
  • a sixteenth aspect provides a computer program product comprising instructions, when executed on a computer, to cause the method described in the first aspect or any of the possible implementations of the first aspect to be performed.
  • a seventeenth aspect provides a computer program product comprising instructions which, when run on a computer, cause the method described in the second aspect or any of the possible implementations of the second aspect to be performed.
  • An eighteenth aspect provides a computer program product comprising instructions, which when run on a computer, cause the method described in the third aspect or any of the possible implementations of the third aspect to be performed.
  • 1 is a schematic structural diagram of a possible closed-loop MIMO system
  • FIG. 2 is a schematic diagram of two scenarios of CSI reporting reconfiguration
  • FIG. 3 is a network architecture diagram of a communication system to which an embodiment of the application is applicable;
  • FIG. 4 is a flowchart of a CSI reporting method provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of another CSI reporting method provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application.
  • the 5th generation (5th generation, 5G) wireless access system standard New Radio (NR) is based on multiple input multiple output (MIMO) technology.
  • MIMO multiple input multiple output
  • network equipment The performance of the link to the terminal equipment can adopt the closed-loop MIMO working mode.
  • FIG. 1 is a schematic structural diagram of a possible closed-loop MIMO system.
  • the network device can determine the parameters used when transmitting data according to the channel state information (Channel State Information, CSI) reported by the terminal device, thereby improving spectral efficiency.
  • CSI Channel State Information
  • CSI reporting can be periodic, semi-persistent, or aperiodic.
  • Periodic CSI reporting Periodic CSI reporting
  • the network device configures the terminal device to perform periodic CSI reporting through high-level signaling (such as Radio Resource Control (RRC) signaling).
  • CSI-RS resources perform channel measurement and interference measurement, and report CSI feedback on the Physical Uplink Control Channel (PUCCH) at fixed time intervals.
  • RRC Radio Resource Control
  • CSI-RS resources perform channel measurement and interference measurement, and report CSI feedback on the Physical Uplink Control Channel (PUCCH) at fixed time intervals.
  • RRC Radio Resource Control
  • CMR Channel Measurement Resource
  • IMR Interference Measurement Resource
  • SP-CSI Semi-Persistent CSI reporting
  • the terminal device When the terminal device is configured to perform semi-persistent CSI reporting, the terminal device does not start to perform until it receives the first downlink signaling sent by the network device. For CSI reporting, the CSI reporting is terminated after receiving the second downlink signaling. Between the two downlink signaling delivery times, the terminal device performs periodic CSI measurement and reporting.
  • the CMR and IMR used for semi-persistent CSI reporting can be either periodic or semi-persistent.
  • Semi-persistent CSI can be reported on PUCCH resources, and network devices can activate and deactivate through downlink high-level signaling (such as Control Element (CE) signaling in the Media Access Control (MAC) layer) Semi-persistent CSI reporting; Semi-persistent CSI can also be reported on the Physical Uplink Shared Channel (PUSCH) resource (ie SP CSI on PUCCH), and the network device can use the physical layer downlink control signaling (Downlink Control Information, DCI) to activate and deactivate semi-persistent CSI reporting (ie SP CSI on PUSCH). Whether it is SP CSI on PUCCH or SP CSI on PUSCH, the network equipment configures the measurement parameters such as the measurement amount and measurement bandwidth required by the terminal equipment to the terminal equipment through RRC signaling.
  • DCI Downlink Control Information
  • Aperiodic CSI reporting (Aperiodic CSI reporting, AP-CSI): The network device first semi-statically configures multiple CSI reporting configuration parameters for the terminal device through downlink RRC signaling, and triggers one or more of the CSI through DCI reporting, the terminal device performs CSI measurement according to the configuration parameters of CSI reporting, and uses PUSCH to report the CSI measurement result. It should be noted that although aperiodic CSI measurement and reporting and semi-persistent CSI measurement and reporting require network device triggering, aperiodic CSI measurement and reporting do not need to be deactivated after DCI triggering, and only one measurement is performed. and reporting. The CMR and IMR used for aperiodic CSI reporting may be sent periodically or semi-persistently or aperiodically.
  • the configuration parameters required in the CSI reporting process such as reporting amount (Rank Indicator (RI), Channel Quality Indicator (CQI), precoding matrix indicator (precoding matrix indicator) , PMI)), reporting bandwidth and other configuration parameters are all configured by the network device to the terminal device through RRC signaling.
  • reporting amount Rank Indicator (RI), Channel Quality Indicator (CQI), precoding matrix indicator (precoding matrix indicator) , PMI)
  • reporting bandwidth is all configured by the network device to the terminal device through RRC signaling.
  • NR Since it takes a certain amount of time for a terminal device to perform CSI measurement and prepare to report CSI, in order to ensure that the terminal device has enough time to calculate CSI and prepare to report CSI information, NR also defines a CSI reference resource.
  • the time domain position of the CSI reference resource is within the first several slots of the time slot (slot) where the CSI reporting is located. Specifically, the location of the uplink resource used by a CSI reporting is n' uplink slot, then the time domain location of the reference resource of this CSI reporting is: n-nCSI_ref;
  • n-nCSI_ref is related to the CSI reporting type. For example, for periodic or semi-persistent CSI reporting, if the number of CSI-RS resources for channel measurement bundled with CSI reporting is 1, then nCSI_ref is greater than or equal to The minimum integer of , so that the slot whose time domain position is n-nCSI_ref is a valid downlink slot; and for periodic or semi-persistent CSI reporting, if the number of CSI-RS resources for channel measurement bound by CSI reporting is greater than 1, then nCSI_ref is greater than or equal to The smallest integer of , so that n-nCSI_ref is a valid downlink slot.
  • NR supports Carrier Aggregation (CA) technology.
  • Network equipment and terminal equipment can be configured with multiple carriers. Among these carriers, one carrier is defined as the primary carrier.
  • the network equipment can use MAC CE signaling Activate or deactivate any carrier other than the primary carrier.
  • NR also defines multiple bandwidth parts (Band Width Part, BWP) on each carrier. There is only one active BWP on each carrier.
  • the network device can convert the activated BWP through downlink control information (Downlink Control Information, DCI).
  • DCI Downlink Control Information
  • the BWP can also be switched through RRC signaling.
  • For CSI reporting it is configured according to the carrier, that is, which carrier the CSI reporting belongs to is indicated in the CSI reporting configuration information; and for CSI-RS/CSI-IM resources, it is configured according to the BWP.
  • the 3rd Generation Partnership Project (3GPP) stipulates in the NR protocol that: after CSI reporting configuration or reconfiguration, or serving cell activation, or BWP change, or SP CSI activation, if no later than The location of the CSI reference resource, the terminal device can receive at least one CMR transmission and one IMR transmission, then the terminal device reports the CSI report, otherwise the terminal device discards the CSI report (After the CSI report(re)configuration, serving cell activation ,BWP change,or activation of SP-CSI,the UE reports a CSI report only after receiving at least one CSI-RS transmission occasion for channel measurement and CSI-RS and/or CSI-IM occasion for interference measurement no later than CSI reference resource and drops the report otherwise).
  • 3GPP stipulates in the NR protocol that: after CSI reporting configuration or reconfiguration, or serving cell activation, or BWP change, or SP CSI activation, if no later than The location of the CSI reference resource, the terminal device can receive at least one CMR transmission and one IMR
  • the process of CSI reporting configuration or reconfiguration, or serving cell activation, or BWP change, or SP CSI activation, etc. includes the following steps: in the first step, the network device issues configuration or activation signaling; in the second step, The terminal device receives the signaling correctly; in the third step, the terminal device completes the corresponding configuration according to the signaling, and can work normally according to the new configuration or activation command.
  • the time of the third step is ambiguous for network devices, because each terminal device has different processing capabilities, and the time required to complete the corresponding configuration is also different, even for the same terminal device in different states, The time required to complete the corresponding configuration will also vary.
  • CSI reporting reconfiguration is completed through RRC signaling
  • RRC is carried by the Physical Downlink Shared Channel (PDSCH)
  • the network device delivers the PDSCH carrying RRC to the terminal Device (ie, the first step), the terminal device correctly receives the PDSCH, and feeds back ACK to the network device (ie, the second step).
  • the time of the above two steps, whether it is the network device or the terminal device, is clear and can be synchronized.
  • the terminal device parses the RRC signaling carried by the PDSCH, and performs CSI reporting reconfiguration according to the RRC signaling.
  • this process is ambiguous, and the protocol stipulates that the above-mentioned ambiguous period is 5 to 10 milliseconds. This fuzzy period may cause the network device to fail to correctly receive the Uplink Control Information (UCI) reported by the terminal device.
  • UCI Uplink Control Information
  • scenario (a) two scenarios of CSI reporting reconfiguration are shown, namely scenario (a) and scenario (b).
  • the network device sends a CMR. and IMR, and CMR and IMR are no later than the location of the CSI reference resource.
  • the difference is: in scenario (a), the terminal device completes the CSI reporting reconfiguration faster and can receive the CMR and IMR sent by the network device; while in scenario (b), the terminal device does not complete the CSI reporting reconfiguration in time. , the CMR and IMR sent by the network device cannot be received.
  • the network device If the network device assumes the terminal device according to the situation of (a), the actual terminal device does not complete the CSI reporting and reconfiguration in time, that is, the terminal device works according to (b), and the terminal device will discard the CSI in the UCI according to the protocol. Since UCI is not sent based on scheduling, the network device receives UCI through blind detection. When the network device performs blind detection, the number of information bits is an important blind detection parameter.
  • the process of blind detection of UCI by a network device is as follows: When a terminal device sends UCI, it will generate a check digit based on the valid information bits according to preset rules, add the check digit to the UCI, and send it to the network device together. After receiving UCI, the received valid information bits will generate check digit according to the same preset rules, and compare it with the received check digit. When the check digit is consistent, it is considered that UCI has been received correctly, otherwise Discard the received UCI.
  • the network device assumes the terminal device according to the situation (a), and the terminal device actually works according to (b), then the network device will discard the received UCI and cannot receive other UCIs sent by the terminal device. If the information also contains very important HARQ feedback, it will have a great impact on the link performance.
  • the embodiments of the present application provide a method and a corresponding device for reporting and receiving CSI.
  • the device needs to discard the reception of other important uplink information (such as HARQ feedback) caused by inconsistent understanding of CSI. For example, after CSI reporting configuration or reconfiguration, or serving cell activation, or BWP change, or SP CSI activation, regardless of whether the terminal device can receive at least one CMR transmission and one CMR transmission at a location no later than the CSI reference resource
  • terminal devices report CSI in UCI
  • network devices all receive CSI in UCI. The specific scheme will be introduced in detail later.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, for example, the fourth generation (4th generation, 4G) communication system, the fifth generation (5th generation, 5G) communication system, the sixth generation (6th generation, 6G) communication system A communication system or other future evolution systems, or other various wireless communication systems using wireless access technologies, etc., as long as there is a positioning requirement in the communication system, the technical solutions of the embodiments of the present application can be adopted.
  • FIG. 3 shows a network architecture diagram of a communication system to which an embodiment of the present application is applied, where the communication system includes a network device and a terminal device.
  • Signals can be transmitted between network equipment and terminal equipment. Signals can be transmitted through radio waves or through transmission media such as visible light, lasers, infrared, and optical fibers.
  • the terminal device also referred to as a terminal, includes a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal equipment may communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • RAN radio access network
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, V2X terminal equipment, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station) , remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device), etc.
  • IoT Internet of things
  • these may include mobile telephones (or "cellular" telephones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, computer-embedded mobile devices, and the like.
  • mobile telephones or "cellular" telephones
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • constrained devices such as devices with lower power consumption, or devices with limited storage capacity, or devices with limited computing power, etc.
  • it includes information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), and laser scanners.
  • RFID radio frequency identification
  • GPS global positioning system
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. Wait.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as on-board terminal equipment.
  • the on-board terminal equipment is also called on-board unit (OBU). ).
  • network equipment for example, includes access network (access network, AN) equipment, radio access network (radio access network, RAN) equipment, access network equipment such as a base station (for example, an access point), may refer to an access network A device in a network that communicates with wireless terminal devices over the air interface through one or more cells.
  • the base station may be used to convert received air frames to and from Internet Protocol (IP) packets and act as a router between the terminal device and the rest of the access network, which may include the IP network.
  • IP Internet Protocol
  • the network device can also coordinate the attribute management of the air interface.
  • the network equipment may include a long term evolution (long term evolution, LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolved Node B) in long term evolution-advanced (LTE-A), Alternatively, it may also include the next generation node B (gNB) or the next generation evolved base station (next generation evolved base station) in the new radio (new radio, NR) system of the fifth generation mobile communication technology (the 5th generation, 5G).
  • LTE long term evolution
  • NodeB or eNB or e-NodeB, evolved Node B evolved Node B
  • LTE-A long term evolution-advanced
  • gNB next generation node B
  • next generation evolved base station next generation evolved base station
  • new radio new radio
  • Enhanced next-generation base station can also include a centralized unit (centralized unit in a cloud radio access network, Cloud RAN) system unit, CU) and distributed unit (distributed unit, DU), or may also include a relay device, which is not limited in this embodiment of the present application.
  • system and “network” in the embodiments of the present application may be used interchangeably.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or”, which describes the relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, it can indicate that A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/" generally indicates that the associated objects are an "or” relationship.
  • At least one of the following items refers to any combination of these items, including any combination of single item(s) or plural items(s), such as at least one of a, b or c (a), can mean: a, or b, or c, or a and b, or b and c, or a and c, or a and b and c.
  • the ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, sequence, priority or priority of multiple objects. Importance.
  • the first priority criterion and the second priority criterion are only for distinguishing different criteria, and do not indicate the difference in content, priority, or importance of the two criteria.
  • FIG. 4 it is a flowchart of a method for reporting CSI provided by an embodiment of the present application, and the method can be applied to the communication system shown in FIG. 3 .
  • Methods include:
  • the terminal device determines the CSI status.
  • the CSI status includes the following two types: 1) valid; 2) invalid. Wherein, at the same moment, the CSI status of the terminal equipment is unique, that is, the CSI status is valid or invalid. If the CSI status of the terminal device is not configured, it is regarded as invalid.
  • the terminal device can read the CSI from the storage unit.
  • the terminal device can read the CSI from the storage unit.
  • the CSI status is invalid, there is no CSI in the storage unit, and the terminal device cannot read the CSI from the storage unit.
  • the specific implementation of the storage unit may be a register inside the terminal device (for example, it may be a small storage area in a central processing unit (Central Processing Unit, CPU) specially used to store CSI), or a special storage area in the terminal device for storing CSI.
  • the storage unit inside the modulation and demodulation chip for wireless signal processing, and the specific implementation form of the storage unit is not limited in this application.
  • the terminal device performs CSI measurement when the CSI measurement opportunity arrives.
  • the position marked by the white rectangle in FIG. 2 represents the CSI measurement opportunity; after the terminal device completes the CSI measurement, it stores the obtained CSI from the measurement. In the storage unit of the terminal device; after waiting for the CSI reporting opportunity, the terminal device reads the CSI from the storage unit for CSI reporting.
  • the position marked by the black rectangle in FIG. 2 represents the CSI reporting opportunity.
  • determining the CSI state by the terminal device specifically includes: when the terminal device reaches the CSI reading opportunity, determining the CSI state.
  • the CSI measurement timing is associated with the CSI reporting timing, and the CSI measurement timing arrives before its associated CSI reporting timing.
  • both CSI measurement occasions and CSI reporting occasions exist periodically, and a pair of associated CSI measurement occasions and CSI reporting occasions exist in each period.
  • the difference is that in semi-persistent CSI reporting, the terminal device starts CSI reporting after receiving the first downlink signaling sent by the network device, and ends the CSI reporting after receiving the second downlink signaling. Between the downlink signaling delivery time, the terminal device performs periodic CSI measurement and reporting; while in periodic CSI reporting, these two downlink signaling are not required to trigger or stop the terminal device from performing periodic CSI measurement and reporting.
  • CSI measurement and CSI reporting need to be triggered by the network device, but there is only a pair of associated CSI measurement timing and CSI reporting timing after each triggering, that is, the terminal device only performs measurement and reporting once.
  • the terminal device can update the state of the CSI in the storage unit to be invalid, and at the next CSI measurement opportunity, After a new CSI measurement result is obtained, the CSI measurement result is updated and the CSI status is updated to be valid.
  • the above-mentioned CSI state process may also be updated according to the type of CSI. For example, for periodic CSI and semi-persistent CSI, if the terminal device reads the CSI in the storage unit at a certain CSI reporting opportunity and reports the CSI, the CSI status is still valid. For aperiodic CSI, if After the terminal device reads the CSI in the storage unit at a certain CSI reporting opportunity and reports the CSI, the terminal device can update the state of the CSI in the storage unit to invalid, and obtain a new CSI at the next CSI measurement opportunity. After the CSI measurement results are obtained, the CSI measurement results are updated and the CSI status is updated to be valid.
  • the terminal device may set the CSI state to be invalid at any moment when the CSI cannot be obtained by calculation, and then set the CSI state to be valid when the CSI is obtained by calculation.
  • the terminal device when the terminal device performs BWP switching configuration, since the network device switches the BWP for the terminal device through downlink information (the downlink information can be RRC signaling or DCI), the terminal device needs to receive and decode the content of the downlink information, and according to The information content is configured accordingly. There is a configuration delay in this process. Until the BWP handover is completed, the terminal device cannot perform CSI measurement. Therefore, in this scenario, even if the terminal device can determine that there is a CSI measurement opportunity, if the measurement opportunity Just within the configured time delay, the terminal device cannot complete the CSI measurement, and naturally cannot generate valid CSI information. In addition, when the terminal device performs BWP handover, there is also a switch delay time.
  • the terminal device performs BWP handover, there is also a switch delay time.
  • the radio frequency transceiver function of the terminal device will be interrupted, and any data transmission and reception operations cannot be performed. Therefore, in this scenario , even if the terminal device can determine that there is a CSI measurement opportunity, but if the CSI measurement opportunity happens to be within the handover delay time corresponding to the terminal device performing BWP handover (that is, the terminal device is in the process of BWP handover), then the terminal device has no ability to receive The CMR and IMR sent from the network equipment cannot complete the CSI measurement, and the terminal equipment cannot complete the CSI measurement, and naturally cannot generate valid CSI information. Therefore, the terminal device may set the CSI state to be invalid when receiving the BWP handover message or after receiving the BWP handover message.
  • the terminal device when a terminal device configures CSI reporting, since the network device configures CSI reporting parameters for the terminal device through RRC signaling, the terminal device needs to receive and decode the content of the RRC signaling, and perform corresponding configuration according to the signaling content. There is a configuration delay in the process. Before the configuration is completed, the terminal equipment cannot perform CSI measurement. Therefore, in this scenario, even if the terminal equipment can determine that there is a CSI measurement timing, if the measurement timing is within the configuration delay, then the terminal equipment The CSI measurement cannot be completed, and valid CSI information cannot be generated naturally, so the terminal device does not have valid CSI when the CSI reporting opportunity arrives. Therefore, the terminal device may set the CSI status to invalid when receiving the CSI reporting configuration message or after receiving the CSI reporting configuration message.
  • the terminal device when the terminal device performs CSI reporting reconfiguration, since the network device reconfigures the CSI reporting parameters for the terminal device through RRC signaling, the terminal device needs to receive and decode the RRC signaling content, and perform corresponding configuration according to the signaling content , there is a configuration delay in this process. Before the configuration is completed, the terminal device cannot perform CSI measurement. Therefore, in this scenario, even if the terminal device can determine that there is a CSI measurement opportunity, if the measurement opportunity is within the configuration delay, then The terminal device also cannot complete the CSI measurement, and naturally cannot generate valid CSI information, so the terminal device does not have valid CSI when the CSI reporting opportunity arrives. Therefore, the terminal device may set the CSI status to invalid while receiving the CSI reporting reconfiguration message or after receiving the CSI reporting reconfiguration message.
  • the terminal device when the terminal device activates the serving cell, since the network device activates the serving cell for the terminal device through downlink control signaling, the terminal device needs to perform corresponding configuration according to the signaling content. There is a configuration delay in this process. Before the configuration is completed , the terminal equipment cannot perform CSI measurement, so in this scenario, even if the terminal equipment can determine that there is a CSI measurement opportunity, but if the measurement timing happens to be within the configured delay, the terminal equipment cannot complete the CSI measurement, and naturally cannot generate a valid CSI measurement. CSI information, so the terminal device has no valid CSI when the CSI reporting opportunity arrives. Therefore, the terminal device may set the CSI status to be invalid when receiving the serving cell activation message or after receiving the serving cell activation message.
  • the terminal device when a terminal device is activating SP CSI, since the network device activates SP CSI reporting for the terminal device through downlink control signaling, the terminal device needs to perform corresponding configuration according to the signaling content. There is a configuration delay in this process. Previously, the terminal equipment could not perform CSI measurement, so in this scenario, even if the terminal equipment can determine that there is a CSI measurement opportunity, but if the measurement timing happens to be within the configured delay, the terminal equipment cannot complete the CSI measurement, and naturally cannot generate Valid CSI information, so the terminal device does not have valid CSI when the CSI reporting opportunity arrives. Therefore, the terminal device may set the CSI status to invalid when receiving the SP CSI activation message or after receiving the SP CSI activation message.
  • the terminal device sets the CSI status to invalid.
  • the preset message sent by the network device can trigger the terminal device to set the CSI status to invalid.
  • the preset message may be a message that causes any of the above scenarios to occur, such as a CSI reporting configuration message, a CSI reconfiguration message, a serving cell activation message, a BWP handover message, or a semi-persistent CSI reporting activation message, and the like.
  • the terminal device sets the CSI status to invalid when receiving the preset message.
  • the terminal device sets the CSI state to be invalid at a certain time t after receiving the preset message.
  • t is between the time t1 when the terminal device receives the preset message and the time t2 when the terminal device reads the CSI report.
  • the time t when the terminal device configures the CSI state to be invalid should be between t1 and t1.
  • t3 not after t3 and t3.
  • the terminal device can measure valid CSI before CSI reading, it needs to ensure that the setting occurs before the terminal device can measure valid CSI reporting. If the terminal device does not measure valid CSI before CSI reading, then Just make sure that the setup happens before the end device reads the CSI timing.
  • the situations in which the terminal equipment cannot obtain the CSI by calculation include the following:
  • the terminal equipment Before the CSI reporting opportunity arrives, there are opportunities for the terminal equipment to receive CSI-RS for channel measurement and the timing for the terminal equipment to receive CSI-RS and/or CSI-IM for interference measurement, but the terminal equipment receives the CSI-RS and/or CSI-IM for interference measurement.
  • the timing of the CSI-RS measured on the channel is later than the timing of the CSI reference resource;
  • the terminal equipment Before the CSI reporting opportunity arrives, there are opportunities for the terminal equipment to receive CSI-RS for channel measurement and the timing for the terminal equipment to receive CSI-RS and or CSI-IM for interference measurement, but the terminal equipment receives The timing of CSI-RS and/or CSI-IM for interference measurement is later than the timing of CSI reference resources;
  • the terminal equipment Before the CSI reporting opportunity arrives, there are opportunities for the terminal equipment to receive CSI-RS for channel measurement and the timing for the terminal equipment to receive CSI-RS and or CSI-IM for interference measurement, but the terminal equipment receives CSI-RS for interference measurement.
  • the timing of the CSI-RS for channel measurement and the timing for the terminal device to receive the CSI-RS and/or CSI-IM for interference measurement are both later than the timing of the CSI reference resources.
  • any one of the above six situations belongs to the situation that the terminal equipment cannot receive at least one CMR transmission and at least one IMR transmission at a position no later than the CSI reference resource.
  • the terminal device can keep the CSI status as invalid, or set the CSI status as invalid;
  • the terminal device has received at least one CMR transmission and one IMR transmission (that is, the CSI can be calculated), and before receiving the CMR and IMR, the terminal device has completed the corresponding configuration (such as BWP) handover or CSI reporting configuration or CSI reporting reconfiguration or serving cell activation or SP CSI activation, etc.), and the terminal device can obtain valid CSI reporting, then the terminal device changes the CSI status to valid after obtaining valid CSI information, and changes the CSI status to valid.
  • the measured CSI report is put into the storage unit.
  • the terminal device sends the preset CSI.
  • the terminal device when the CSI state is invalid, the terminal device sends the preset CSI when the CSI reporting opportunity arrives.
  • the terminal device After CSI reporting configuration or reconfiguration, or serving cell activation, or BWP change, or SP CSI activation, if it is not later than the CSI reference resource, the terminal device cannot receive at least one CMR transmission and at least one CMR transmission. After one IMR transmission, the terminal device reports the preset CSI.
  • the preset CSI may have various design manners.
  • the preset CSI may be a default (default) CSI.
  • the default refers to the default meaning.
  • the preset CSI may be a sequence of default values, such as a bit sequence of all 1s, or a bit sequence of all 0s.
  • the preset CSI may be a bit sequence in which the bits of the CQI are all 0, and the values of other bits are not limited.
  • the preset CSI is carried in the UCI.
  • the UCI in addition to the CSI reporting bits, other uplink data may also be included, such as uplink HARQ feedback.
  • other information bits in the UCI except the CSI reporting bits are not changed, so as to ensure the reliability of other uplink data transmission.
  • the length of the bits of the preset CSI is the same as the length of the bits required by the CSI configuration information.
  • Example 1 for the terminal device after receiving the CSI reporting configuration message, although the configuration of the CSI configuration parameters will be involved in the process of performing the CSI reporting configuration, the terminal device may not complete it when the first N CSI reporting opportunities arrive. CSI reporting parameter configuration, so the CSI configuration parameters corresponding to this CSI configuration cannot be determined. In this case, when the first N CSI reporting opportunities arrive, the terminal device may determine the length of the CSI reporting bits by using the preset CSI configuration parameters.
  • the preset CSI configuration parameters include the following configuration parameters: periodic CSI reporting, cri-RI-PMI-CQI, wideband CQI, and wideband PMI.
  • Each configuration parameter has a certain bit length, and the bit length of the CSI report is the sum of the bit lengths of all configuration parameters.
  • N here is preset and may be any positive integer, and the specific value is not limited in this application.
  • Example 2 for the terminal device after receiving the CSI reporting reconfiguration message, although the configuration of the CSI configuration parameters will be involved in the process of performing the CSI reporting reconfiguration, the terminal device may not The CSI reporting parameter configuration has not been completed, so the CSI configuration parameters corresponding to this CSI reconfiguration cannot be determined. In this case, when the first N CSI reporting opportunities arrive, the terminal device also determines the length of the CSI reporting bits through the preset CSI configuration parameters, or uses the original (ie before this CSI reconfiguration) CSI. The configuration parameter determines the length of the CSI report bits, such as the CSI configuration parameter of the last CSI configuration or CSI reconfiguration.
  • Example 3 for the terminal device, after receiving the Activating Serving Cell message, or the BWP switching message, or the SP CSI activation message, in the process of activating the serving cell, or switching the BWP, or activating the SP CSI, the CSI configuration parameters are not involved. Therefore, the terminal device can determine the length of the CSI reporting bits according to the configured CSI configuration parameters.
  • the configured CSI configuration parameters here refer to the CSI configuration parameters configured by the terminal device before activating the serving cell, switching the BWP, or activating the SP CSI, such as the CSI configuration parameters of the latest CSI configuration or CSI reconfiguration.
  • the network device receives the preset CSI.
  • the behavior of the network device corresponds to the behavior of the terminal device.
  • the network device may specifically receive the preset CSI when the CSI reporting opportunity arrives.
  • the network device may receive the UCI, and receive the preset CSI in the UCI.
  • the manner in which the network device determines the length of the CSI reporting bits when receiving the CSI is consistent with the manner in which the terminal device determines the length of the CSI reporting bits when reporting the CSI.
  • the network device after each CSI reporting opportunity arrives, the network device will receive the CSI. If the CSI is the CSI reported by the terminal device when the CSI status is invalid, the CSI is the preset CSI, and the network device can discard the CSI. The CSI; if the CSI is the CSI reported by the terminal device when the CSI state is valid, the CSI is valid CSI, and the network device will not discard the CSI.
  • the network device does not know whether the CSI reported each time CSI is valid CSI or preset CSI, and the network device only considers that the terminal device reports the CSI every time the CSI is reported.
  • a network device every time a network device receives a UCI, it will assume that there are CSI reporting bits in the UCI, and then generate check bits according to preset rules, and compare them with the check bits received in the UCI. When the check bits are consistent , it is considered that the UCI has been received correctly, and the CSI reporting bit in the UCI is further read, and it is found that the CSI reporting bit in the UCI is a bit sequence of all 1s or a bit sequence of all 0s, and then it is determined that the CSI is the CSI of the terminal equipment. The preset CSI reported when the status is invalid, so the CSI can be discarded.
  • the terminal device in the embodiment of the present application sets the CSI state to be invalid when the configuration ambiguity period arrives, and reports the preset CSI when the CSI state is invalid, and the network device receives the preset CSI.
  • CSI so that the network device and the terminal device can reach an agreement on whether to discard the CSI during the configuration ambiguity period (that is, the CSI is not discarded, and the terminal device reports the preset CSI), which can avoid the configuration ambiguity between the network device and the terminal device in the prior art.
  • the problem of whether other important uplink information (such as HARQ feedback) is lost due to inconsistent understanding of whether to discard CSI can be improved, and the performance of uplink transmission can be improved.
  • the terminal device determines the CSI status based on whether the CSI can be read from the storage unit, and then determines that the CSI reporting opportunity is the reporting preset when the CSI reporting opportunity arrives. CSI is still valid CSI.
  • the embodiments of the present application may also be described from the perspective of external implementation.
  • FIG. 5 it is a flowchart of another CSI reporting method provided by an embodiment of the present application, and the method can be applied to the communication system shown in FIG. 3 .
  • Methods include:
  • the network device sends a preset message, and the terminal device receives the preset message.
  • the preset message is one of the following messages: a CSI reporting configuration message; a CSI reconfiguration message; a serving cell activation message; a BWP handover message; and a persistent CSI reporting activation message.
  • a CSI reporting configuration message is one of the following messages: a CSI reporting configuration message; a CSI reconfiguration message; a serving cell activation message; a BWP handover message; and a persistent CSI reporting activation message.
  • the terminal device sends the preset CSI when the CSI reporting opportunity arrives.
  • the fact that the terminal device cannot obtain valid CSI before the CSI reporting time due to the preset message means that, from the time the terminal device receives the preset message, until the terminal completes the configuration or activation corresponding to the preset message, the terminal device cannot perform Therefore, valid CSI information cannot be generated before the CSI reporting opportunity arrives.
  • the specific implementation of the preset CSI, etc. reference may be made to the relevant description in the embodiment shown in FIG. 4 , and details are not repeated here.
  • the network device receives the preset CSI.
  • the terminal device in this embodiment of the present application receives a preset message from the network device, and when the preset message fails to obtain valid CSI before the CSI reporting opportunity arrives, when the CSI reporting opportunity arrives, the terminal device sends the preset message.
  • Set the CSI and the network device receives the preset CSI, so that the network device and the terminal device reach an agreement on whether to discard the CSI during the configuration ambiguity period (that is, do not discard the CSI, and report the preset CSI), which can avoid the prior art.
  • the problem of loss of other important uplink information (such as HARQ feedback) caused by inconsistent understanding of whether the CSI needs to be discarded between the network device and the terminal device during the configuration ambiguity period can improve the performance of uplink transmission.
  • the terminal device when the terminal device is in an invalid CSI state (or when the terminal device receives a preset message and the preset message makes it impossible to obtain valid CSI before the CSI reporting opportunity arrives), as long as When the CSI reporting time arrives, the preset CSI can be reported, which can well ensure that other uplink information other than the CSI can be accurately received by the network device.
  • the preset CSI may also be sent along the channel.
  • the CSI status of the terminal device is invalid (or when the terminal device receives a preset message and the preset message makes it impossible to obtain valid CSI before the CSI reporting opportunity arrives)
  • the CSI reporting opportunity arrives, only the The preset CSI is reported only when other uplink data needs to be reported at the CSI reporting occasion, and the preset CSI is carried on the channel where the other uplink data is located; on the contrary, if there is no other uplink data at the CSI reporting occasion If there is a reporting requirement, the preset CSI may not be reported.
  • Example 1 The terminal device sends preset CSI along the channel when sending HARQ feedback.
  • the HARQ feedback is sent by the terminal device to the network device through the PUCCH to notify the network device whether the PDSCH sent by the network device is correctly received.
  • the CSI report can be placed in the same UCI as the HARQ feedback and sent by the terminal device to the network on the PUCCH. equipment.
  • the preset CSI is carried in the UCI used to carry the HARQ feedback.
  • Example 2 when the terminal device sends the uplink service data, the preset CSI is sent along the channel.
  • NR specifies that when both PUCCH and PUSCH exist in the same time slot, PUCCH can be loaded on PUSCH for transmission. Since the CSI is sent on the PUCCH (UCI in the middle), when the PUCCH is loaded on the PUSCH for sending, the CSI report will also be loaded on the PUSCH resource and sent to the network device together with other uplink data.
  • the preset CSI is carried in the PUSCH used to carry the uplink service data.
  • Example 3 The terminal device sends the preset CSI along the channel when reporting other CSI.
  • network equipment can communicate with terminal equipment through multiple carrier components (CCs), but not every CC has an uplink.
  • the network device configures 2 CCs for the terminal device.
  • CC1 is the main CC, which is configured with both the uplink frequency band and the downlink frequency band, while CC2 is the secondary CC, and only the downlink frequency band is configured above.
  • the CSI corresponding to CC2 The feedback needs to be sent to the network device through the PUCCH in the uplink frequency band of CC1.
  • CC1 When CC1 is normal, and CC2 has CSI reporting configuration or reconfiguration, or serving cell activation, or BWP change, or SP CSI activation, the CSI reporting corresponding to CC1 is normal, and there is no communication between the network device and the terminal device.
  • CC2 When CC1 is normal, and CC2 has CSI reporting configuration or reconfiguration, or serving cell activation, or BWP change, or SP CSI activation, the CSI reporting corresponding to CC1 is normal, and there is no communication between the network device and the terminal device.
  • There is a problem of ambiguity and there is a problem of ambiguity only when the terminal equipment reports the CSI corresponding to CC2. Therefore, it may occur that the terminal equipment reports multiple CSI reports in the same UCI, but only some CSI reports have ambiguity problems, and other CSI reports do not exist.
  • an embodiment of the present application provides a communication apparatus 600, which may be, for example, a terminal device or a chip device disposed inside the terminal device.
  • the apparatus 600 has the functions of implementing the terminal device in the embodiment shown in FIG. 4, such as , the apparatus 600 includes modules or units or means (means) corresponding to the steps performed by the terminal device in the embodiment shown in FIG. 4.
  • the functions or units or means may be implemented by software, or by hardware, or The corresponding software implementation can be performed by hardware.
  • the apparatus 600 may include:
  • a processing unit 601 configured to determine a CSI state
  • the sending unit 602 is configured to send the preset CSI when the CSI state is invalid.
  • processing unit 601 is specifically configured to:
  • the CSI status is determined.
  • the read timing is associated with the CSI reporting timing and arrives before the CSI reporting timing
  • the processing unit 601 is specifically configured to:
  • the preset CSI is sent.
  • the apparatus further includes a receiving unit 603, configured to: receive a preset message
  • the processing unit 601 is further configured to set the CSI status to invalid for the received preset message.
  • FIG. 6 shows with dashed lines that the receiving unit 603 is optional to the apparatus 600 .
  • the preset message is one of the following messages:
  • the processing unit 601 is further configured to: when the CSI is obtained by calculation, set the CSI state to be valid.
  • the preset CSI is default CSI.
  • an embodiment of the present application provides a communication apparatus 700, which may be, for example, a terminal device or a chip device disposed inside the terminal device.
  • the apparatus 700 has the functions of implementing the terminal device in the embodiment shown in FIG. 5, such as , the apparatus 700 includes modules or units or means (means) corresponding to the steps performed by the terminal device in the embodiment shown in FIG. 5.
  • the functions or units or means may be implemented by software, or by hardware, or The corresponding software implementation can be performed by hardware.
  • the apparatus 700 may include:
  • a receiving unit 701 configured to receive a preset message
  • the sending unit 702 is configured to send the preset CSI when the CSI reporting opportunity arrives when the preset message causes that valid CSI cannot be obtained before the CSI reporting opportunity arrives.
  • the preset message is one of the following messages:
  • the version continues CSI reporting activation message.
  • the preset CSI is default CSI.
  • an embodiment of the present application provides a communication device 800, which may be, for example, a network device or a chip device disposed inside the network device.
  • the apparatus 800 includes modules or units or means (means) corresponding to the steps performed by the network device in the embodiment shown in FIG. 4 or FIG. 5 , and the functions or units or means can be implemented by software, Alternatively, it can be implemented by hardware, or it can be implemented by executing corresponding software by hardware.
  • the apparatus 800 may include:
  • a sending unit 801 configured to send a preset message
  • the receiving unit 802 is configured to receive preset CSI at the CSI reporting occasion.
  • the preset message is one of the following messages:
  • the preset CSI is default CSI.
  • an embodiment of the present application further provides a communication apparatus 900, including:
  • the at least one processor 901 executes the instructions stored in the memory 902 by executing the instructions in the device through the communication interface 903 to execute FIG. 4 Or the method steps performed by the terminal device in the embodiment shown in FIG. 5 .
  • the memory 902 is located outside the apparatus 900 .
  • the apparatus 900 includes the memory 902 , the memory 902 is connected to the at least one processor 901 , and the memory 902 stores instructions executable by the at least one processor 901 .
  • the memory 902 is located outside the apparatus 900 .
  • the apparatus 900 includes the memory 902 , the memory 902 is connected to the at least one processor 901 , and the memory 902 stores instructions executable by the at least one processor 901 .
  • Figure 9 shows with dashed lines that memory 902 is optional to apparatus 900.
  • processor 901 and the memory 902 may be coupled through an interface circuit, or may be integrated together, which is not limited here.
  • the specific connection medium between the processor 901 , the memory 902 , and the communication interface 903 is not limited in the embodiments of the present application.
  • the processor 901, the memory 902, and the communication interface 903 are connected through a bus 904 in FIG. 9.
  • the bus is represented by a thick line in FIG. 9.
  • the connection between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.
  • an embodiment of the present application further provides a communication apparatus 1000, including:
  • the at least one processor 1001 executes the instructions stored in the memory 1002 by executing the at least one processor 1002, so that the apparatus executes FIG. 4 through the communication interface 1003 Or the method steps performed by the network device in the embodiment shown in FIG. 5 .
  • the memory 1002 is located outside the apparatus 1000 .
  • the apparatus 1000 includes the memory 1002 , the memory 1002 is connected to the at least one processor 1001 , and the memory 1002 stores instructions executable by the at least one processor 1001 .
  • the memory 1002 is located outside the apparatus 1000 .
  • the apparatus 1000 includes the memory 1002 , the memory 1002 is connected to the at least one processor 1001 , and the memory 1002 stores instructions executable by the at least one processor 1001 .
  • Figure 10 shows with dashed lines that memory 1002 is optional to apparatus 1000.
  • the processor 1001 and the memory 1002 may be coupled through an interface circuit, or may be integrated together, which is not limited here.
  • the specific connection medium between the processor 1001 , the memory 1002 , and the communication interface 1003 is not limited in the embodiments of the present application.
  • the processor 1001, the memory 1002, and the communication interface 1003 are connected through a bus 1004 in FIG. 10.
  • the bus is represented by a thick line in FIG. 10, and the connection between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 10, but it does not mean that there is only one bus or one type of bus.
  • the processor mentioned in the embodiments of the present application may be implemented by hardware or software.
  • the processor When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like.
  • the processor When implemented in software, the processor may be a general-purpose processor implemented by reading software codes stored in memory.
  • the processor may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC) , Off-the-shelf Programmable Gate Array (Field Programmable Gate Array, FPGA) 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.
  • the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Eate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components
  • the memory storage module
  • memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.
  • an embodiment of the present application also provides a computer-readable storage medium, including a program or an instruction, when the program or instruction is run on a computer, the network device in the embodiment shown in FIG. 4 or FIG. 5 can be made to The executed method is executed.
  • an embodiment of the present application also provides a computer-readable storage medium, including a program or an instruction, when the program or instruction is run on a computer, the terminal device in the embodiment shown in FIG. 4 or FIG. The executed method is executed.
  • an embodiment of the present application further provides a chip, which is coupled to a memory and used to read and execute program instructions stored in the memory, so that the network in the embodiment shown in FIG. 4 or FIG. 5 The method executed by the device is executed.
  • an embodiment of the present application further provides a chip, which is coupled to a memory and used to read and execute program instructions stored in the memory, so that the terminal in the embodiment shown in FIG. 4 or FIG. 5 The method executed by the device is executed.
  • an embodiment of the present application also provides a computer program product, including instructions, which, when executed on a computer, cause the method performed by the network device in the embodiment shown in FIG. 4 or FIG. 5 to be executed.
  • the embodiments of the present application also provide a computer program product, including instructions, which, when run on a computer, cause the method performed by the terminal device in the embodiment shown in FIG. 4 or FIG. 5 to be executed.
  • an embodiment of the present application further provides a communication system, including the terminal device and the network device involved in the foregoing embodiments.
  • the communication device 600, the communication device 700, the communication device 800, the communication device 900, and the communication device 1000 provided in the embodiments of the present application can be used to execute the method provided by the corresponding embodiment in the embodiment shown in FIG. 4 or FIG. 5, Therefore, the technical effects that can be obtained can be referred to the above method embodiments, which will not be repeated here.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, from a website site, computer, server, or data center via Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • the available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, digital versatile discs (DVDs)), or semiconductor media (eg, solid state disks (SSDs) ))Wait.
  • magnetic media eg, floppy disks, hard disks, magnetic tapes
  • optical media eg, digital versatile discs (DVDs)
  • semiconductor media eg, solid state disks (SSDs)

Abstract

本申请实施例涉及一种上报、接收CSI的方法及对应装置。终端设备在配置模糊期到来时将CSI状态设置为无效，终端设备在确定CSI状态无效时上报预设CSI，而网络设备接收该预设CSI，这样可使得网络设备和终端设备在配置模糊期对是否需要丢弃CSI的理解达成一致，避免网络设备和终端设备在配置模糊期对是否需要丢弃CSI理解不一致所导致其他重要上行信息(例如HARQ反馈)丢失的问题，从而提高上行链路传输的性能。

Description

一种上报、接收CSI的方法及对应装置
相关申请的交叉引用
本申请要求在2020年08月26日提交中国专利局、申请号为202010872738.2、申请名称为“一种上报、接收CSI的方法及对应装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种上报、接收信道状态信息(Channel State Information，CSI)的方法及对应装置。
背景技术
网络设备对终端设备进行CSI上报配置或者重配置、或者服务小区激活、或者带宽部分(Band Width Part，BWP)切换、或者半持续CSI上报(Semi-Persistent CSI reporting，SP-CSI)激活等过程，一般包括如下步骤：第一步，网络设备下发配置或激活信令；第二步，终端设备正确接收信令；第三步，终端设备根据信令完成相应的配置，能够根据新的配置或激活命令正常工作。在上述三步过程中，第三步的时间对于网络设备是模糊的，因为各个终端设备处理能力不同，完成相应配置所需的时间也各不相同，甚至对于同一个终端设备在不同状态下，完成相应配置所需的时间也会不同。
由于该模糊期的存在，网络设备常常对终端设备的CSI上报状态造成误解。例如，网络设备在下发配置或激活信令一段时间后，网络设备假设终端设备已经完成了相应的配置或激活，所以在上行控制信息(Uplink Control Information，UCI)中上报CSI，但实际终端设备并未完成相应的配置，并未在UCI中上报CSI；或者，网络设备在下发配置或激活信令一段时间后，网络设备假设终端设备未完成相应的配置或激活，所以未在UCI中上报CSI，但实际终端设备已经完成了相应的配置或激活，在UCI中上报了CSI。
无论以上哪一种情况，均会导致网络设备认为的UCI的信息比特位数与实际的UCI的信息比特位数不一致，进而导致网络设备对UCI盲检出错，丢弃UCI。但实际情况中，UCI中除了CSI，还可能包含其它上行数据时，比如混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)反馈，这将导致该其它上行数据也被丢弃，进而对链路性能造成极大的影响。
发明内容
本申请实施例提供一种上报、接收CSI的方法及对应装置，可以提高上行链路的传输性能。
第一方面，提供一种上报CSI的方法，该方法可以应用于终端设备，或者也可以应用于终端设备内部的芯片。以该方法可以应用于终端设备为例，在该方法中，终端设备确定CSI状态；在CSI状态为无效时，发送预设CSI。
在本申请实施例中，终端设备在配置模糊期的CSI状态是无效的，因而终端设备在CSI 状态为无效时发送预设CSI，可以使得终端设备和网络设备在配置模糊期对是否需要丢弃CSI的理解达成一致(即不丢弃CSI，终端设备上报预设CSI)，进而避免现有技术中网络设备和终端设备在配置模糊期对是否需要丢弃CSI理解不一致所导致其他重要上行信息(例如HARQ反馈)丢失的问题，可以提高上行链路传输的性能。
一种可能的实施方式中，所述确定CSI状态具体包括，在到达CSI读取时机时，确定CSI状态。
该实施方式中，终端设备在到达CSI读取时机时确定CSI状态，一方面可以避免过早确定CSI状态导致CSI状态误判的问题，另一方面可以避免太晚确定CSI状态导致无法及时上报CSI的问题，从而提高方案的可靠性。
一种可能的实施方式中，所述读取时机与CSI上报时机相关联，且在所述CSI上报时机之前到达，所述发送预设CSI为在所述CSI上报时机到达时，发送预设CSI。
该实施方式中，将读取时机与CSI上报时机相关联，可以保证终端设备在每次CSI上报时机上报的CSI内容的准确性，进一步提高方案的可靠性。
一种可能的实施方式中，对于收到的预设消息，将CSI状态设置为无效。
该实施方式明确了终端设备将CSI状态设置为无效的时刻，即对于收到的预设消息将CSI状态设置为无效，可进一步提高方案的可靠性。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：CSI上报配置消息；CSI重配置消息；服务小区激活消息；带宽部分切换消息；半持续CSI上报激活消息。
应理解，上述五种消息仅为举例，本申请实施例对预设消息的具体类型不做限定。
一种可能的实施方式中，在计算得到CSI时，将CSI状态设置为有效。
该实施方式中，终端设备计算得到CSI，说明配置模糊期已经结束(即配置已经完成)，终端设备能够完成CSI测量并生成有效的CSI信息，在这种情况下及时地将CSI状态设置为有效，使得终端设备开始上报有效的CSI，可以进一步提高上行链路传输的性能。
一种可能的实施方式中，所述预设CSI为缺省CSI。
第二方面，提供一种上报CSI的方法，该方法可以应用于终端设备，或者也可以应用于终端设备内部的芯片。以该方法可以应用于终端设备为例，在该方法中，终端设备接收预设消息；在该预设消息导致无法在CSI上报时机到达之前获得有效CSI时，在CSI上报时机到达时，发送预设CSI。
在本申请实施例中，本申请实施例中的终端设备在收到网络设备的预设消息，且在该预设消息导致无法在CSI上报时机到达之前获得有效CSI时，在CSI上报时机到达时，发送预设CSI，可以使得网络设备和终端设备在配置模糊期对是否需要丢弃CSI的理解达成一致(即不丢弃CSI，且上报预设CSI)，进而避免现有技术中网络设备和终端设备在配置模糊期对是否需要丢弃CSI理解不一致所导致其他重要上行信息(例如HARQ反馈)丢失的问题，可以提高上行链路传输的性能。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：CSI上报配置消息；CSI重配置消息；服务小区激活消息；带宽部分切换消息；半持续CSI上报激活消息。
应理解，上述五种消息仅为举例，本申请实施例对预设消息的具体类型不做限定。
一种可能的实施方式中，所述预设CSI为缺省CSI。
第三方面，提供一种接收CSI的方法，该方法可以应用于网络设备，或者也可以应用于网络设备内部的芯片。以该方法可以应用于网络设备为例，在该方法中，网络设备发送 预设消息；在CSI上报时机接收预设CSI。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：CSI上报配置消息；CSI重配置消息；服务小区激活消息；带宽部分切换消息；半持续CSI上报激活消息。
一种可能的实施方式中，所述预设CSI为缺省CSI。
第四方面，提供一种通信装置，可以例如为终端设备或者设置在终端设备内部的芯片设备，该装置包括用于执行上述第一方面或第一方面任一种可能的实现方式所述方法的模块。
示例性的，该装置可以包括：处理单元，用于确定CSI状态；发送单元，用于在CSI状态为无效时，发送预设CSI。
一种可能的实施方式中，所述处理单元具体用于：在到达CSI读取时机时，确定CSI状态。
一种可能的实施方式中，所述读取时机与CSI上报时机相关联，且在所述CSI上报时机之前到达，所述处理单元具体用于：在所述CSI上报时机到达时，发送预设CSI。
一种可能的实施方式中，所述装置还包括接收单元，用于：接收预设消息；所述处理单元还用于：对于收到的预设消息，将CSI状态设置为无效。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：CSI上报配置消息；CSI重配置消息；服务小区激活消息；带宽部分切换消息；半持续CSI上报激活消息。
一种可能的实施方式中，所述处理单元还用于：在计算得到CSI时，将CSI状态设置为有效。
一种可能的实施方式中，所述预设CSI为缺省CSI。
第五方面，提供一种通信装置，可以例如为终端设备或者设置在终端设备内部的芯片设备，该装置包括用于执行上述第二方面或第二方面任一种可能的实现方式所述方法的模块。
示例性的，该装置可以包括：接收单元，用于接收预设消息；发送单元，用于在该预设消息导致无法在CSI上报时机到达之前获得有效CSI时，在CSI上报时机到达时，发送预设CSI。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：CSI上报配置消息；CSI重配置消息；服务小区激活消息；带宽部分切换消息；版持续CSI上报激活消息。
一种可能的实施方式中，所述预设CSI为缺省CSI。
第六方面，提供一种通信装置，可以例如为网络设备或者设置在网络设备内部的芯片设备，该装置包括用于执行上述第三方面或第三方面任一种可能的实现方式所述方法的模块。
示例性的，该装置可以包括：发送单元，用于发送预设消息；接收单元，用于在CSI上报时机接收预设CSI。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：CSI上报配置消息；CSI重配置消息；服务小区激活消息；带宽部分切换消息；半持续CSI上报激活消息。
一种可能的实施方式中，所述预设CSI为缺省CSI。
第七方面，提供一种通信装置，包括：至少一个处理器；以及与所述至少一个处理器通信连接的通信接口；所述至少一个处理器通过执行存储器存储的指令，使得所述装置通过所述通信接口执行如第一方面或第一方面任一种可能的实现方式中所述方法。
可选的，所述存储器位于所述装置之外。
可选的，所述装置包括所述存储器，所述存储器与所述至少一个处理器相连，所述存储器存储有可被所述至少一个处理器执行的指令。
第八方面，提供一种通信装置，包括：至少一个处理器；以及与所述至少一个处理器通信连接的通信接口；所述至少一个处理器通过执行存储器存储的指令，使得所述装置通过所述通信接口执行如第二方面或第二方面任一种可能的实现方式中所述方法。
可选的，所述存储器位于所述装置之外。
可选的，所述装置包括所述存储器，所述存储器与所述至少一个处理器相连，所述存储器存储有可被所述至少一个处理器执行的指令。
第九方面，提供一种通信装置，包括：至少一个处理器；以及与所述至少一个处理器通信连接的通信接口；所述至少一个处理器通过执行存储器存储的指令，使得所述装置通过所述通信接口执行如第三方面或第三方面任一种可能的实现方式中所述方法。
可选的，所述存储器位于所述装置之外。
可选的，所述装置包括所述存储器，所述存储器与所述至少一个处理器相连，所述存储器存储有可被所述至少一个处理器执行的指令。
第十方面，提供一种计算机可读存储介质，包括程序或指令，当所述程序或指令在计算机上运行时，使得如第一方面或第一方面任一种可能的实现方式中所述方法被执行。
第十一方面，提供一种计算机可读存储介质，包括程序或指令，当所述程序或指令在计算机上运行时，使得如第二方面或第二方面任一种可能的实现方式中所述方法被执行。
第十二方面，提供一种计算机可读存储介质，包括程序或指令，当所述程序或指令在计算机上运行时，使得如第三方面或第三方面任一种可能的实现方式中所述方法被执行。
第十三方面，提供一种芯片，所述芯片与存储器耦合，用于读取并执行所述存储器中存储的程序指令，使得第一方面或第一方面任一种可能的实现方式中所述方法被执行。
第十四方面，提供一种芯片，所述芯片与存储器耦合，用于读取并执行所述存储器中存储的程序指令，使得第二方面或第二方面任一种可能的实现方式中所述方法被执行。
第十五方面，提供一种芯片，所述芯片与存储器耦合，用于读取并执行所述存储器中存储的程序指令，使得第三方面或第三方面任一种可能的实现方式中所述方法被执行。
第十六方面，提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得上述第一方面或第一方面任一种可能的实现方式中所述方法被执行。
第十七方面，提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得上述第二方面或第二方面任一种可能的实现方式中所述方法被执行。
第十八方面，提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得上述第三方面或第三方面任一种可能的实现方式中所述方法被执行。
附图说明
图1为一种可能的闭环MIMO系统的结构示意图；
图2为两种CSI上报重配置的场景示意图；
图3为本申请实施例适用的一种通信系统的网络架构图；
图4为本申请实施例提供的一种CSI上报方法的流程图；
图5为本申请实施例提供的另一种CSI上报方法的流程图；
图6为本申请实施例提供的一种通信装置的结构示意图；
图7为本申请实施例提供的另一种通信装置的结构示意图；
图8为本申请实施例提供的另一种通信装置的结构示意图；
图9为本申请实施例提供的另一种通信装置的结构示意图；
图10为本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
第五代(5th generation，5G)无线接入系统标准新空口(New Radio，NR)是基于多入多出(multiple input multiple output，MIMO)技术的，为了提高下行链路性能，即由网络设备到终端设备的链路性能，可以采用闭环MIMO工作方式。
图1为一种可能的闭环MIMO系统的结构示意图。如图1所示，网络设备可以根据终端设备上报的信道状态信息(Channel State Information，CSI)，确定发射数据时所使用的参数，从而能够提高频谱效率。
CSI上报(CSI reporting)可以是周期性的，也可以半持续的，也可以非周期的。
1)、周期CSI上报(Periodic CSI reporting，P-CSI)：网络设备通过高层信令(如无线资源控制(Radio Resource Control，RRC)信令)配置终端设备进行周期的CSI上报，终端设备基于周期CSI-RS资源，进行信道测量和干扰测量，并按照固定的时间间隔，在物理上行控制信道(Physical Uplink Control Channel，PUCCH)上上报CSI反馈。在周期CSI上报中，终端设备测量所使用的信道测量资源(Channel Measurement Resource，CMR)和干扰测量资源(Interference Measurement Resource，IMR)都为网络设备周期发送的，周期和资源映射等相关参数都是由RRC信令配置的，CSI上报的周期以及上报所使用的PUCCH资源等参数也是由RRC信令配置的。
2)、半持续CSI上报(Semi-Persistent CSI reporting，SP-CSI)：终端设备被配置进行半持续的CSI上报时，终端设备在收到网络设备发送的第一下行信令后才开始进行CSI上报，在收到第二下行信令后结束CSI上报，在这两个下行信令下发时刻之间，终端设备进行周期性的CSI测量与上报。半持续CSI上报所使用的CMR和IMR，可以是周期的，也可以是半持续发送的。半持续CSI可以在PUCCH资源上进行上报，网络设备可以通过下行高层信令(如媒体接入控制层(Media Acess Control，MAC)的控制单元(Control Element，CE)信令)来激活和去激活半持续CSI上报；半持续CSI还可以在物理上行共享信道(Physical Uplink Shared Channel，PUSCH)资源上进行上报(即SP CSI on PUCCH)，网络设备可以通过物理层下行控制信令(Downlink Control Information，DCI)来激活和去激活半持续CSI上报(即SP CSI on PUSCH)。无论是SP CSI on PUCCH还是SP CSI on PUSCH，对于终端设备所需的测量量、测量带宽等测量参数，网络设备都是通过RRC信令配置给终端设备的。
3)、非周期CSI上报(Aperiodic CSI reporting，AP-CSI)：网络设备首先通过下行RRC信令半静态地为终端设备配置多个CSI reporting的配置参数，通过DCI触发其中的一个或多个CSI reporting，终端设备根据CSI reporting的配置参数进行CSI测量，并使用PUSCH上报CSI测量结果。需要注意的是：虽然非周期CSI测量与上报与半持续的CSI测量与上报一样，都需要网络设备触发，但是非周期的CSI测量与上报在DCI触发后不需要去激活，并且只进行一次测量与上报。非周期CSI上报所使用的CMR和IMR，可以是周期的或者 半持续的或者非周期发送的。
在上述三类CSI上报中，CSI上报过程中所需的配置参数，例如上报量(等级指示(Rank Indicator，RI)、信道质量指示(Channel Quality Indicator，CQI)、预编码矩阵指示(precoding matrix indicator，PMI))、上报带宽等配置参数都是网络设备通过RRC信令配置给终端设备的。
由于终端设备进行CSI测量和准备上报CSI需要一定时间，为了保证终端设备有足够的时间来计算CSI和准备上报CSI信息，NR还定义了CSI参考资源(CSI reference resource)。
CSI参考资源的时域位置是处于CSI reporting所在时隙(slot)的前若干个slot内。具体来说，一个CSI reporting使用的上行资源位置为n’上行slot，那么这个CSI reporting的参考资源的时域位置为：n-nCSI_ref；
其中，
Figure PCTCN2021092991-appb-000001
μ DL和μ UL分别表示上下行子载波间隔配置参数，例如下行子载波间隔为15kHz的话，那么μ DL＝0；若为30kHz，那么μ DL＝1；若为60kHz，那么μ DL＝2；若为120kHz，那么μ DL＝3。
n-nCSI_ref与CSI reporting类型有关。例如，对于周期或者半持续CSI reporting，若CSI reporting绑定的用于信道测量的CSI-RS资源数为1时，那么nCSI_ref为大于或等于
Figure PCTCN2021092991-appb-000002
的最小整数，使得时域位置为n-nCSI_ref的slot为有效的下行slot；而对于周期或者半持续CSI reporting，若CSI reporting绑定的用于信道测量的CSI-RS资源数大于1时，那么nCSI_ref为大于或等于
Figure PCTCN2021092991-appb-000003
的最小整数，使得n-nCSI_ref为有效的下行slot。
在频谱使用方面，NR支持载波聚合(Carrier Aggregation，CA)技术，网络设备与终端设备可以配置多个载波，在这些载波中，有一个载波被定义为主载波，网络设备可以通过MAC CE信令激活或者去激活除主载波以外的任意载波。NR还在每个载波上定义了多个带宽部分(Band Width Part，BWP)，每个载波上只有一个激活的BWP，网络设备可以通过下行控制信息(Downlink Control Information，DCI)变换激活的BWP，还可以通过RRC信令来切换BWP。对于CSI reporting，是按照载波来配置，即在CSI reporting配置信息中会指示该CSI reporting属于哪一个载波；而对于CSI-RS/CSI-IM资源则是按照BWP配置的。
第三代合作伙伴计划组织(3rd Generation Partnership Project，3GPP)在NR协议中规定了：在CSI上报配置或者重配置、或者服务小区激活、或者BWP改变、或者SP CSI激活后，若是在不晚于CSI参考资源的位置，终端设备至少能够接收到1次CMR传输和1次IMR传输，那么终端设备上报CSI上报，否则终端设备丢弃这次CSI上报(After the CSI report(re)configuration,serving cell activation,BWP change,or activation of SP-CSI,the UE reports a CSI report only after receiving at least one CSI-RS transmission occasion for channel measurement and CSI-RS and/or CSI-IM occasion for interference measurement no later than CSI reference resource and drops the report otherwise)。
在实际实施时，CSI上报配置或者重配置、或者服务小区激活、或者BWP改变、或者SP CSI激活等过程，包括如下步骤：第一步，网络设备下发配置或激活信令；第二步，终端设备正确接收信令；第三步，终端设备根据信令完成相应的配置，能够根据新的配置或激活命令正常工作。
在上述三步过程中，第三步的时间对于网络设备是模糊的，因为各个终端设备处理能力不同，完成相应配置所需的时间也各不相同，甚至对于同一个终端设备在不同状态下，完成相应配置所需的时间也会不同。
例如，以CSI上报重配置为例，CSI上报重配置是通过RRC信令完成的，RRC是由物理下行共享信道(Physical Downlink Shared Channel，PDSCH)承载的，网络设备下发承载RRC的PDSCH给终端设备(即第一步)，终端设备正确接收PDSCH，并反馈ACK给网络设备(即第二步)，上述两个步骤的时间，无论是网络设备还是终端设备，都是明确的，可以同步的。而终端设备将PDSCH承载的RRC信令解析出来，并且根据RRC信令进行CSI上报重配置，在3GPP的协议中，这个过程却是模糊的，协议规定上述模糊期为5到10毫秒。这个模糊期会造成网络设备可能无法正确接收终端设备上报的上行控制信息(Uplink Control Information，UCI)。
如图2所示，示出了两种CSI上报重配置的场景，即场景(a)和场景(b)。
在场景(a)和场景(b)中，在终端设备完成承载CSI上报重配置的RRC信令的PDSCH接收后，到网络设备配置的用于CSI上报的上行资源之前，网络设备都发送了CMR和IMR，并且CMR和IMR是不晚于CSI参考资源的位置。不同的是：场景(a)中，终端设备更快的完成了CSI上报重配置，能够接收网络设备发送的CMR和IMR；而在场景(b)中，终端设备没有及时的完成CSI上报重配置，无法接收网络设备发送的CMR和IMR。
然而场景(a)和场景(b)这两种情况，在终端设备完成CSI上报重配置之前，对于网络设备和终端设备都是未知的。
若网络设备按照(a)的情况来假设终端设备，实际终端设备并没有及时的完成CSI上报重配置，即终端设备是按照(b)工作的，终端设备将根据协议，在UCI中丢弃了CSI上报，而由于UCI的发送并不是基于调度的，因此网络设备是通过盲检来接收UCI，网络设备盲检时，信息比特位数是重要的盲检参数。
网络设备盲检UCI的过程如下：终端设备在发送UCI时，会根据预设规则，根据有效信息比特生成校验位，并将校验位附加在UCI中，一起发送给网络设备，而网络设备在接收到UCI后，会将接收到的有效信息比特按照相同的预设规则生成校验位，与接收到的校验位进行比较，当校验位一致时，则认为正确接收到了UCI，否则丢弃接收到的UCI。
按照上述情况，若网络设备按照(a)的情况来假设终端设备，而终端设备实际是按照(b)工作的，那么网络设备将丢弃接收到的UCI，进而无法接收终端设备发送的UCI中其他信息，如果这些信息还包含非常重要的HARQ反馈，将对链路性能造成极大的影响。
同样的问题也会出现在网络设备按照(b)来假设终端设备，而终端设备实际是按照(a)工作的情况，这种情况下，UCI中会多出来网络设备预计会丢弃的CSI上报比特，同样会使得网络设备无法正确接收UCI，对链路性能造成极大的影响。
鉴于此，本申请实施例提供一种上报、接收CSI的方法及对应装置，通过对网络设备和终端设备在配置模糊期的行为同时进行约束，可以避免由于配置模糊期而引起的网络设备与终端设备对是否需要丢弃CSI理解不一致而造成的其他重要上行信息(例如HARQ反馈)的接收的问题。例如，在CSI上报配置或者重配置、或者服务小区激活、或者BWP改变、或者SP CSI激活后，无论终端设备是否能够在不晚于CSI参考资源的位置，接收到至少1次CMR传输和1次IMR传输，终端设备都在UCI中上报CSI，网络设备都在UCI中接收CSI。具体方案将在后文详细介绍。
本申请实施例的技术方案可以应用于各种通信系统，例如：第四代(4th generation，4G)通信系统、第五代(5th generation，5G)通信系统、第六代(6th generation，6G)通信系统或未来的其他演进系统、或其他各种采用无线接入技术的无线通信系统等，只要该通信系统中存在定位需求，则均可以采用本申请实施例的技术方案。
图3示出了本申请实施例适用的一种通信系统的网络架构图，该通信系统包括网络设备和终端设备。网络设备和终端设备之间可以相互传输信号，信号可以通过无线电波来传输，也可以通过可见光、激光、红外、光纤等传输媒介来传输。
其中，终端设备，又可称为终端，包括向用户提供语音和/或数据连通性的设备，例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、V2X终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
而如上介绍的各种终端设备，如果位于车辆上(例如放置在车辆内或安装在车辆内)，都可以认为是车载终端设备，车载终端设备例如也称为车载单元(on-board unit，OBU)。
其中，网络设备，例如包括接入网(access network，AN)设备，无线接入网(radio access network，RAN)设备，接入网设备例如基站(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备。基站可用于将收到的空中帧与网际协议(IP)分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。网络设备还可协调对空口的属性管理。例如，网络设备可以包括长期演进(long term evolution，LTE)系统或高级长期演进(long term evolution-advanced， LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolved Node B)，或者也可以包括第五代移动通信技术(the 5th generation，5G)新空口(new radio，NR)系统中的下一代节点B(next generation node B，gNB)或者下一代演进型基站(next generation evolved nodeB，ng-eNB)、en-gNB(enhanced next generation node B，gNB)：增强的下一代基站；也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，或者还可以包括中继设备，本申请实施例并不限定。
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例的技术方案作进一步地详细描述。
本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合，例如a、b或c中的至少一项(个)，可以表示：a，或b，或c，或a和b，或b和c，或a和c，或a和b和c。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。例如，第一优先级准则和第二优先级准则，只是为了区分不同的准则，而并不是表示这两种准则的内容、优先级或者重要程度等的不同。
此外，本申请实施例和权利要求书及附图中的术语“包括”和“具有”不是排他的。例如，包括了一系列步骤或模块的过程、方法、系统、产品或设备，不限定于已列出的步骤或模块，还可以包括没有列出的步骤或模块。
如图4所示，为本申请实施例提供的一种CSI上报方法的流程图，该方法可以应用于图3所示的通信系统。方法包括：
S401、终端设备确定CSI状态。
在本申请实施例中，对于终端设备来说，CSI状态包括以下两种：1)有效；2)无效。其中，在同一时刻，终端设备的CSI状态是唯一的，即CSI状态是有效或无效。若终端设备的CSI状态未配置，则视同无效。
当CSI状态为有效时，终端设备能够从存储单元中读取到CSI。当CSI状态为无效时，存储单元中没有CSI，终端设备无法从存储单元中读取到CSI。
其中，存储单元的具体实现可以是终端设备内部的一个寄存器(例如可以是中央处理器(Central Processing Unit，CPU)中专门用来存放CSI的小型存储区域)，或者是终端设备内的专门用于无线信号处理的调制解调芯片内部的存储单元，本申请对存储单元的具体实现形式不做限制。
可选的，在本申请实施例中，终端设备在CSI测量时机到来时进行CSI测量，例如图2中白色矩形所标识的位置表示CSI测量时机；终端设备完成CSI测量后，将测量获得CSI存储在终端设备的存储单元中；等待CSI上报时机到来后，终端设备从存储单元读取CSI进行CSI上报，例如图2中黑色矩形所标识的位置表示CSI上报时机。
相应的，终端设备确定CSI状态具体包括：终端设备在到达CSI读取时机时，确定CSI状态。
进一步的，在本申请实施例中，CSI测量时机和CSI上报时机相关联，且CSI测量时机在其关联的CSI上报时机之前到达。
对于半持续CSI上报和周期CSI上报，CSI测量时机和CSI上报时机都是周期性存在的，且每个周期内存在一对关联的CSI测量时机和CSI上报时机。不同之处在于，半持续CSI上报中，终端设备在收到网络设备发送的第一下行信令后才开始进行CSI上报，在收到第二下行信令后结束CSI上报，在这两个下行信令下发时刻之间，终端设备进行周期性的CSI测量与上报；而周期CSI上报中，不需要这两个下行信令来触发或停止终端设备进行周期性的CSI测量与上报。
对于非周期CSI上报，CSI测量和CSI上报需要网络设备触发，但每次触发之后仅存在一对关联的CSI测量时机和CSI上报时机，即终端设备只进行一次测量与上报。
应理解，如果终端设备在某个CSI上报时机读取到了存储单元里的CSI并将该CSI进行了上报，则终端设备可以将存储单元中的CSI的状态更新为无效，在下一个CSI测量时机，获得新的CSI测量结果后，更新CSI测量结果并将CSI的状态更新为有效。
上述CSI状态过程也可以是根据CSI的类型进行更新。例如，对于周期CSI和半持续CSI，如果终端设备在某个CSI上报时机读取到了存储单元里的CSI并将该CSI进行了上报后，仍然保持CSI的状态为有效，对于非周期CSI，如果终端设备在某个CSI上报时机读取到了存储单元里的CSI并将该CSI进行了上报后，则终端设备可以将存储单元中的CSI的状态更新为无效，在下一个CSI测量时机，获得新的CSI测量结果后，更新CSI测量结果并将CSI的状态更新为有效。
进一步可选的，在本申请实施例中，终端设备可以在任何无法计算得到CSI的时刻，将CSI状态设置为无效，在计算得到CSI时，再将CSI状态设置为有效。
在本申请实施例中，导致终端设备无法计算得到CSI的场景有多种。
例如，终端设备在进行BWP切换配置时，由于网络设备是通过下行信息(该下行信息可以是RRC信令或者DCI)为终端设备切换BWP，所以终端设备需要将下行信息内容接收解码出来，并根据信息内容进行相应的配置，这个过程存在配置时延，直到BWP切换完成之前，终端设备都无法进行CSI测量，所以在这种场景下，即使终端设备可以确定存在CSI测量时机，但是如果该测量时机正好在配置时延内，那么终端设备也无法完成CSI测量，自然无法生成有效的CSI信息。另外，终端设备在进行BWP切换时，还存在一个切换延迟(switch delay)时间，在切换延迟时间内，终端设备的射频收发功能会被中断，无法执行任何数据收发操作，所以在这种场景下，即便终端设备可以确定存在CSI测量时机，但如果该CSI测量时机刚好位于终端设备执行BWP切换对应的切换延迟时间内(即终端设备正处于BWP切换过程中)，那么终端设备也没有能力去接收来自网络设备发送的CMR、IMR，因而无法完成CSI测量，终端设备无法完成CSI测量，自然无法生成有效的CSI信息。所以，终端设备可以在收到BWP切换消息的同时或者在收到BWP切换消息后，将CSI状态设置为无效。
例如，终端设备在进行CSI上报配置时，由于网络设备是通过RRC信令为终端设备配置CSI上报参数，终端设备需要将RRC信令内容接收解码出来，并根据信令内容进行相应的配置，这个过程存在配置时延，在配置完成之前，终端设备无法进行CSI测量，所 以在这种场景下，即使终端设备可以确定存在CSI测量时机，但是如果该测量时机正好在配置时延内，那么终端设备也无法完成CSI测量，自然无法生成有效的CSI信息，所以终端设备在CSI上报时机到来时没有有效的CSI。所以，终端设备可以在收到CSI上报配置消息的同时或者在收到CSI上报配置消息之后，将CSI状态设置为无效。
例如，终端设备在进行CSI上报重配置时，由于网络设备是通过RRC信令为终端设备重配置CSI上报参数，终端设备需要将RRC信令内容接收解码出来，并根据信令内容进行相应的配置，这个过程存在配置时延，在配置完成之前，终端设备无法进行CSI测量，所以在这种场景下，即使终端设备可以确定存在CSI测量时机，但是如果该测量时机正好在配置时延内，那么终端设备也无法完成CSI测量，自然无法生成有效的CSI信息，所以终端设备在CSI上报时机到来时没有有效的CSI。所以，终端设备可以在收到CSI上报重配置消息的同时或者在收到CSI上报重配置消息之后，将CSI状态设置为无效。
例如，终端设备在进行服务小区激活时，由于网络设备是通过下行控制信令为终端设备激活服务小区，终端设备需要根据信令内容进行相应的配置，这个过程存在配置时延，在配置完成之前，终端设备无法进行CSI测量，所以在这种场景下，即使终端设备可以确定存在CSI测量时机，但是如果该测量时机正好在配置时延内，那么终端设备也无法完成CSI测量，自然无法生成有效的CSI信息，所以终端设备在CSI上报时机到来时没有有效的CSI。所以，终端设备可以在收到服务小区激活消息的同时或者在收到服务小区激活消息之后，将CSI状态设置为无效。
例如，终端设备在进行SP CSI激活时，由于网络设备是通过下行控制信令为终端设备激活SP CSI上报，终端设备需要根据信令内容进行相应的配置，这个过程存在配置时延，在配置完成之前，终端设备无法进行CSI测量，所以在这种场景下，即使终端设备可以确定存在CSI测量时机，但是如果该测量时机正好在配置时延内，那么终端设备也无法完成CSI测量，自然无法生成有效的CSI信息，所以终端设备在CSI上报时机到来时没有有效的CSI。所以，终端设备可以在收到SP CSI激活消息的同时或者在收到SP CSI激活消息之后，将CSI状态设置为无效。
当然，以上几种触发终端设备无法计算得到CSI的场景仅为举例而非限制，在实际应用中，还可能存在其它场景导致终端设备无法计算得到CSI，这里不排除其他可能性。
一种可能的设计中，对于收到的预设消息，终端设备将CSI状态设置为无效。换而言之，网络设备下发的预设消息可以触发终端设备将CSI状态设置为无效。预设消息可以是导致上述任意一种场景发生的消息，比如CSI上报配置消息、CSI重配置消息、服务小区激活消息、BWP切换消息或半持续CSI上报激活消息等。
一种具体的实现方式中，终端设备在收到预设消息的同时将CSI状态设置为无效。
另一种具体的实现方式中，终端设备在收到预设消息之后的某个时刻t将CSI状态设置为无效。但是至少保证t是在终端设备收到预设消息的时刻t1与终端设备读取CSI上报的时刻t2之间。进一步的，当收到预设消息的时刻t1与终端设备读取CSI上报的时刻t2之间存在终端设备测量得到有效CSI的时刻t3，则终端设备配置CSI状态为无效的时刻t应该在t1和t3之间，不能在t3以及t3之后。换而言之，如果终端设备在CSI读取之前能够测量到有效CSI，则需要保证设置发生在终端设备能够测量到有效CSI上报之前，如果终端设备在CSI读取之前没有测量到有效CSI，则只需保证设置发生在终端设备读取CSI时机之前。
当然，以上两种实现方式仅仅是对“对于收到的预设消息，将CSI状态设置为无效”的举例而非限定，实际还可以包括其他情形。
进一步的，终端设备无法计算得到CSI的情形包括以下几种：
1)、在CSI上报时机到达之前，不存在终端设备接收用于信道测量的CSI-RS的时机；
2)、在CSI上报时机到达之前，不存在终端设备接收用于干扰测量的CSI-RS和/或CSI-IM的时机；
3)、在CSI上报时机到达之前，既不存在终端设备接收用于信道测量的CSI-RS的时机也不存在终端设备接收用于干扰测量的CSI-RS和/或CSI-IM的时机；
4)、在CSI上报时机到达之前，存在终端设备接收用于信道测量的CSI-RS的时机和终端设备接收用于干扰测量的CSI-RS和/或CSI-IM的时机，但终端设备接收用于信道测量的CSI-RS的时机晚于CSI参考资源的时机；
5)、在CSI上报时机到达之前，存在终端设备接收用于信道测量的CSI-RS的时机和终端设备接收用于干扰测量的CSI-RS和或CSI-IM的时机，但终端设备接收用于干扰测量的CSI-RS和/或CSI-IM的时机晚于CSI参考资源的时机；
6)、在CSI上报时机到达之前，存在终端设备接收用于信道测量的CSI-RS的时机和终端设备接收用于干扰测量的CSI-RS和或CSI-IM的时机，但终端设备接收用于信道测量的CSI-RS的时机以及终端设备接收用于干扰测量的CSI-RS和/或CSI-IM的时机都晚于CSI参考资源的时机。
应理解，以上6种情形的任意一种，都属于终端设备在不晚于CSI参考资源的位置，无法接收到至少1次CMR传输和至少1次IMR传输的情形。
进一步的，若是在不晚于CSI参考资源的位置，终端设备一直无法至少接收到1次CMR传输和1次IMR传输，则可以保持CSI状态为无效不变，或者将CSI状态设置为无效；若是在不晚于CSI参考资源的位置，终端设备至少接收到1次CMR传输和1次IMR传输(即能够计算得到CSI)，并且在接收CMR和IMR之前，终端设备完成了相应的配置(如BWP切换或者CSI上报配置或者CSI上报重配置或者服务小区激活或者SP CSI激活等)，终端设备能够获得有效的CSI上报，则终端设备在获得有效的CSI信息后，将CSI状态变更为有效，并将测量得到的CSI上报放入存储单元中。
S402、终端设备在CSI状态为无效时，发送预设CSI。
具体的，终端设备在CSI状态为无效时，在CSI上报时机到达时发送预设CSI。示例性的，在CSI上报配置或者重配置、或者服务小区激活、或者BWP改变、或者SP CSI激活后，若是在不晚于CSI参考资源的位置，终端设备无法接收到至少1次CMR传输以及至少1次IMR传输，那么终端设备上报预设CSI。
在本申请实施例中，预设CSI可以有多种设计方式。
一种可能的设计中，该预设CSI可以为缺省(default)CSI。其中，缺省是指默认的意思。例如，预设CSI可以是默认值的序列，例如全1的比特序列，或者全0的比特序列。
另一种可能的设计中，预设CSI可以是CQI的比特位为全0，而其他比特位取值不做限定的比特序列。
当然，以上两种设计仅为示例而非限定，在实际实施时，不排除有其它设计的可能性。
可选的，该预设CSI承载在UCI中。
需要注意的是，在本申请实施例中，在UCI中，除了CSI上报比特还可能包含其它上 行数据，例如上行HARQ反馈。本申请实施例在实现时，不改变UCI中除CSI上报比特以外的其他信息位，以保证其它上行数据传输的可靠性。
可选的，预设CSI的比特位的长度与CSI配置信息所要求的比特位的长度相同。
其中预设CSI的比特位的长度的确定方式可以有多种，这里不做具体限制。
示例1，对于终端设备在接收到CSI上报配置消息后，在执行CSI上报配置的过程中，虽然会涉及CSI配置参数的配置，但是终端设备在前N次CSI上报时机到达时，可能并未完成CSI上报参数配置，所以无法确定本次CSI配置对应的CSI配置参数。在这种情况下，终端设备在前N次CSI上报时机到达时，可以通过预设的CSI配置参数确定CSI上报比特位的长度。
例如，预设的CSI配置参数包括如下配置参数：周期CSI上报、cri-RI-PMI-CQI、宽带CQI、宽带PMI。其中每个配置参数有确定的比特位长度，CSI上报比特位的长度则为所有配置参数的比特位长度之和。
应理解，这里的N是预设的，可以是任意一个正整数，具体取值本申请不做限制。
示例2，对于终端设备在接收到CSI上报重配置消息后，在执行CSI上报重配置的过程中，虽然会涉及CSI配置参数的配置，但是终端设备在前N次CSI上报时机到达时，可能并未完成CSI上报参数配置，所以无法确定本次CSI重配置对应的CSI配置参数。在这种情况下，终端设备在前N次CSI上报时机到达时，也通过预设的CSI配置参数确定CSI上报比特位的长度，或者通过原有的(即本次CSI重配置之前的)CSI配置参数确定CSI上报比特位的长度，例如上一次CSI配置或CSI重配置的CSI配置参数。
示例3，对于终端设备在接收到激活服务小区消息、或者切换BWP消息、或者激活SP CSI消息后，在执行激活服务小区、或者切换BWP、或者激活SP CSI的过程中，并不涉及CSI配置参数配置，所以，终端设备可以根据已配置的CSI配置参数来确定CSI上报比特位的长度。
这里的已配置的CSI配置参数，是指在激活服务小区、或者切换BWP、或者激活SP CSI之前，终端设备已配置的CSI配置参数，例如最近一次CSI配置或CSI重配置的CSI配置参数。
当然，以上几种确定CSI上报比特位的长度的方式仅为举例而非限制，在实际应用中，还可能存在其它确定CSI上报比特位的长度的方式，这里不排除其他可能性。
S403、网络设备接收预设CSI。
在本申请实施例中，网络设备的行为与终端设备的行为对应。例如，网络设备具体可以是在CSI上报时机达到时，接收该预设CSI。
进一步的，网络设备可以接收UCI，并在UCI中接收该预设CSI。
进一步的，网络设备在接收CSI时确定CSI上报比特位的长度的方式和终端设备在上报CSI时确定CSI上报比特位的长度的方式保持一致。
在本申请实施例中，在每一次CSI上报时机到来后，网络设备都会接收CSI，如果该CSI是终端设备是在CSI状态无效时上报的CSI，则该CSI是预设CSI，网络设备可以丢弃该CSI；如果该CSI是终端设备是在CSI状态有效时上报的CSI，则该CSI是有效CSI，网络设备不会丢弃该CSI。
应理解，对于网络设备来说，并不知道每一次CSI上报的CSI是有效CSI还是预设CSI，网络设备只是认为每一次CSI上报时机终端设备都上报了CSI。
例如，网络设备每一次在接收到UCI后，都会假设该UCI中存在CSI上报比特，然后按照预设规则生成校验位，与UCI中接收到的校验位进行比较，当校验位一致时，则认为正确接收到了UCI，进一步读取该UCI中的CSI上报比特，发现该UCI中CSI上报比特上是全1的比特序列，或者全0的比特序列，进而确定该CSI是终端设备在CSI状态为无效时上报的预设CSI，因此可以丢弃该CSI。
通过上述可知，本申请实施例中的终端设备通过对CSI状态进行设置，在配置模糊期到来时将CSI状态设置为无效，且在CSI状态无效时上报预设CSI，而网络设备接收该预设CSI，使得网络设备和终端设备在配置模糊期对是否需要丢弃CSI的理解达成一致(即不丢弃CSI，且终端设备上报预设CSI)，可以避免现有技术中网络设备和终端设备在配置模糊期对是否需要丢弃CSI理解不一致所导致其他重要上行信息(例如HARQ反馈)丢失的问题，可以提高上行链路传输的性能。
以上图4所描述的实施例是从终端设备内部实现的角度来描述的，即终端设备基于是否能够从存储单元读取到CSI来确定CSI状态，进而确定在CSI上报时机到达时是上报预设CSI还是有效CSI。另外，本申请实施例还可以外部实现的角度来描述。
参见图5，为本申请实施例提供的另一种CSI上报方法的流程图，该方法可以应用于图3所示的通信系统。方法包括：
S501、网络设备发送预设消息，终端设备接收预设消息。
可选的，预设消息为下列消息之中的一种：CSI上报配置消息；CSI重配置消息；服务小区激活消息；BWP切换消息；版持续CSI上报激活消息。关于上述各种消息的具体实现，可以参考图4所示实施例中的相关描述，这里不再赘述。
S502、终端设备在该预设消息导致无法在CSI上报时机到达之前获得有效CSI时，在CSI上报时机到达时，发送预设CSI。
具体的，终端设备在该预设消息导致无法在CSI上报时机到达之前获得有效CSI是指，从终端设备收到预设消息开始，到终端完成预设消息对应配置或激活之前，终端设备无法进行CSI测量，因而无法在CSI上报时机到达之前生成有效的CSI信息。关于预设消息对应配置或激活场景、预设CSI的具体实现等，可以参考图4所示实施例中的相关描述，这里不再赘述。
S503、网络设备接收该预设CSI。
关于网络设备接收预设CSI的具体实现，可以参考图4所示实施例中的相关描述，这里不再赘述。
通过上述可知，本申请实施例中的终端设备在收到网络设备的预设消息，且在该预设消息导致无法在CSI上报时机到达之前获得有效CSI时，在CSI上报时机到达时，发送预设CSI，而网络设备接收该预设CSI，使得网络设备和终端设备在配置模糊期对是否需要丢弃CSI的理解达成一致(即不丢弃CSI，且上报预设CSI)，可以避免现有技术中网络设备和终端设备在配置模糊期对是否需要丢弃CSI理解不一致所导致其他重要上行信息(例如HARQ反馈)丢失的问题，可以提高上行链路传输的性能。
在以上图4和图5所示实施例中，终端设备在CSI状态无效时(或者说终端设备接收到预设消息且该预设消息导致无法在CSI上报时机到达之前获得有效CSI时)，只要CSI上报时机到来，就可以上报预设CSI，这样可以很好地保证除了CSI以外的其他上行信息能够准确的被网络设备接收。
可替换的，在本申请实施例中，预设CSI也可以是随路发送的。换而言之，终端设备在CSI状态无效时(或者说终端设备接收到预设消息且该预设消息导致无法在CSI上报时机到达之前获得有效CSI时)，在CSI上报时机到来时，只有在该CSI上报时机存在其它上行数据需要上报时，才上报预设CSI，且该预设CSI是承载在该其它上行数据所在的信道上发送；相反，如果在该CSI上报时机不存在其它上行数据的上报需求，则可以不上报预设CSI。
其中，预设CSI随路的方式可以有多种，以下例举其中几种可能的实现方式。
示例1，终端设备在发送HARQ反馈时随路发送预设CSI。
具体的，HARQ反馈是终端设备通过PUCCH发送给网络设备，用于通知网络设备是否正确接收网络设备发送的PDSCH，CSI上报可以与HARQ反馈放在同一个UCI中在PUCCH上由终端设备发送给网络设备。
所以，终端设备在CSI状态无效时(或者说终端设备接收到预设消息且该预设消息导致无法在CSI上报时机到达之前获得有效CSI时)，当CSI上报时机到来时，如果存在HARQ反馈需求，则在用于承载HARQ反馈的UCI中携带预设CSI。
示例2，终端设备在发送上行业务数据时随路发送预设CSI。
NR规定当在同一个时隙内同时存在PUCCH和PUSCH时，PUCCH可以被装载到PUSCH上发送。由于CSI是在PUCCH(中的UCI)上发送，所以当PUCCH被装载到PUSCH上发送时，CSI上报也会随之装载到PUSCH的资源上与其他上行数据一起发送给网络设备。
所以，终端设备在CSI状态无效时(或者说终端设备接收到预设消息且该预设消息导致无法在CSI上报时机到达之前获得有效CSI时)，当CSI上报时机到来时，如果存在发送上行业务数据的需求，则在用于承载上行业务数据的PUSCH中携带预设CSI。
示例3，终端设备在上报其他CSI时随路发送预设CSI。
在CA下，网络设备可以通过多个载波成分(Carrier Component，CC)与终端设备通信，但并不是每个CC上都有上行链路的。例如，网络设备给终端设备配置了2个CC，CC1是主CC，上面既配置上行频带，也配置了下行频带，而CC2是辅CC，上面只配置了下行频带，这时候，CC2对应的CSI反馈需要在CC1的上行频段通过PUCCH发送给网络设备。当CC1是正常的，而CC2出现了CSI上报配置或者重配置、或者服务小区激活、或者BWP改变、或者SP CSI激活，这时候CC1对应的CSI上报是正常的，网络设备和终端设备之间不存在模糊性的问题，而只有终端设备在上报CC2对应的CSI上报存在模糊性的问题。所以可能会出现，终端设备在同一个UCI中上报的多个CSI上报，而只有某些CSI上报存在模糊性问题，其他CSI上报不存在。
通过这样的随路设计，在CSI上报配置或者重配置、或者服务小区激活、或者BWP改变、或者SP CSI激活后，如果存在除了CSI以外的其他信息上报需求，则可以保证除了CSI以外的其他上行信息能够准确的被网络设备接收，如果没有其他上行信息时，则又能够降低终端设备和网络设备的复杂度，节省系统开销。
应理解，本文中的各实施例可以相互结合以实现不同的技术效果。
以上结合图4～图5介绍了本申请实施例提供的方法，以下结合图6～图10介绍本申请实施例提供的装置。
基于同一技术构思，本申请实施例提供一种通信装置600，可以例如为终端设备或者 设置在终端设备内部的芯片设备，该装置600具备实现上述图4所示实施例中终端设备的功能，比如，该装置600包括执行上述图4所示实施例中终端设备所执行的步骤所对应的模块或单元或手段(means)，所述功能或单元或手段可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
示例性的，参见图6，该装置600可以包括：
处理单元601，用于确定CSI状态；
发送单元602，用于在CSI状态为无效时，发送预设CSI。
一种可能的实施方式中，所述处理单元601具体用于：
在到达CSI读取时机时，确定CSI状态。
一种可能的实施方式中，所述读取时机与CSI上报时机相关联，且在所述CSI上报时机之前到达，所述处理单元601具体用于：
在所述CSI上报时机到达时，发送预设CSI。
一种可能的实施方式中，所述装置还包括接收单元603，用于：接收预设消息；
所述处理单元601还用于：对于收到的预设消息，将CSI状态设置为无效。
图6用虚线表示接收单元603对于装置600是可选的。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：
CSI上报配置消息；
CSI重配置消息；
服务小区激活消息；
带宽部分切换消息；
半持续CSI上报激活消息。
一种可能的实施方式中，所述处理单元601还用于：在计算得到CSI时，将CSI状态设置为有效。
一种可能的实施方式中，所述预设CSI为缺省CSI。
应理解，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
基于同一技术构思，本申请实施例提供一种通信装置700，可以例如为终端设备或者设置在终端设备内部的芯片设备，该装置700具备实现上述图5所示实施例中终端设备的功能，比如，该装置700包括执行上述图5所示实施例中终端设备所执行的步骤所对应的模块或单元或手段(means)，所述功能或单元或手段可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
示例性的，参见图7，该装置700可以包括：
接收单元701，用于接收预设消息；
发送单元702，用于在该预设消息导致无法在CSI上报时机到达之前获得有效CSI时，在CSI上报时机到达时，发送预设CSI。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：
CSI上报配置消息；
CSI重配置消息；
服务小区激活消息；
带宽部分切换消息；
版持续CSI上报激活消息。
一种可能的实施方式中，所述预设CSI为缺省CSI。
应理解，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
基于同一技术构思，本申请实施例提供一种通信装置800，可以例如为网络设备或者设置在网络设备内部的芯片设备，该装置800具备实现上述图4或图5所示实施例中网络设备的功能，比如，该装置800包括执行上述图4或图5所示实施例中网络设备所执行的步骤所对应的模块或单元或手段(means)，所述功能或单元或手段可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
示例性的，参见图8，该装置800可以包括：
发送单元801，用于发送预设消息；
接收单元802，用于在CSI上报时机接收预设CSI。
一种可能的实施方式中，所述预设消息为下列消息之中的一种：
CSI上报配置消息；
CSI重配置消息；
服务小区激活消息；
带宽部分切换消息；
半持续CSI上报激活消息。
一种可能的实施方式中，所述预设CSI为缺省CSI。
应理解，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
基于同一技术构思，参见图9，本申请实施例还提供一种通信装置900，包括：
至少一个处理器901；以及与所述至少一个处理器901通信连接的通信接口903；所述至少一个处理器901通过执行存储器902存储的指令，使得所述装置通过所述通信接口903执行图4或图5所示实施例中终端设备所执行的方法步骤。
可选的，所述存储器902位于所述装置900之外。
可选的，所述装置900包括所述存储器902，所述存储器902与所述至少一个处理器901相连，所述存储器902存储有可被所述至少一个处理器901执行的指令。
可选的，所述存储器902位于所述装置900之外。
可选的，所述装置900包括所述存储器902，所述存储器902与所述至少一个处理器901相连，所述存储器902存储有可被所述至少一个处理器901执行的指令。附图9用虚线表示存储器902对于装置900是可选的。
其中，所述处理器901和所述存储器902可以通过接口电路耦合，也可以集成在一起，这里不做限制。
本申请实施例中不限定上述处理器901、存储器902以及通信接口903之间的具体连接介质。本申请实施例在图9中以处理器901、存储器902以及通信接口903之间通过总线904连接，总线在图9中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图9中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
基于同一技术构思，参见图10，本申请实施例还提供一种通信装置1000，包括：
至少一个处理器1001；以及与所述至少一个处理器1001通信连接的通信接口1003；所述至少一个处理器1001通过执行存储器1002存储的指令，使得所述装置通过所述通信接口1003执行图4或图5所示实施例中网络设备所执行的方法步骤。
可选的，所述存储器1002位于所述装置1000之外。
可选的，所述装置1000包括所述存储器1002，所述存储器1002与所述至少一个处理器1001相连，所述存储器1002存储有可被所述至少一个处理器1001执行的指令。
可选的，所述存储器1002位于所述装置1000之外。
可选的，所述装置1000包括所述存储器1002，所述存储器1002与所述至少一个处理器1001相连，所述存储器1002存储有可被所述至少一个处理器1001执行的指令。附图10用虚线表示存储器1002对于装置1000是可选的。
其中，所述处理器1001和所述存储器1002可以通过接口电路耦合，也可以集成在一起，这里不做限制。
本申请实施例中不限定上述处理器1001、存储器1002以及通信接口1003之间的具体连接介质。本申请实施例在图10中以处理器1001、存储器1002以及通信接口1003之间通过总线1004连接，总线在图10中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图10中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
应理解，本申请实施例中提及的处理器可以通过硬件实现也可以通过软件实现。当通过硬件实现时，该处理器可以是逻辑电路、集成电路等。当通过软件实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现。
示例性的，处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
应理解，本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Eate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)可以集成在处理器中。
应注意，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
基于同一技术构思，本申请实施例还提供一种计算机可读存储介质，包括程序或指令，当所述程序或指令在计算机上运行时，使得如图4或图5所示实施例中网络设备所执行的方法被执行。
基于同一技术构思，本申请实施例还提供一种计算机可读存储介质，包括程序或指令，当所述程序或指令在计算机上运行时，使得如图4或图5所示实施例中终端设备所执行的方法被执行。
基于同一技术构思，本申请实施例还提供一种芯片，所述芯片与存储器耦合，用于读取并执行所述存储器中存储的程序指令，使得如图4或图5所示实施例中网络设备所执行的方法被执行。
基于同一技术构思，本申请实施例还提供一种芯片，所述芯片与存储器耦合，用于读取并执行所述存储器中存储的程序指令，使得如图4或图5所示实施例中终端设备所执行的方法被执行。
基于同一技术构思，本申请实施例还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得如图4或图5所示实施例中网络设备所执行的方法被执行。
基于同一技术构思，本申请实施例还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得如图4或图5所示实施例中终端设备所执行的方法被执行。
基于同一技术构思，本申请实施例还提供一种通信系统，包括上述实施例中所涉及的终端设备和网络设备。
由于本申请实施例提供的通信装置600、通信装置700、通信装置800、通信装置900、通信装置1000、可用于执行图4或图5所示的实施例中相应的实施例所提供的方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字通用光盘(digital versatile disc，DVD))、或者半导体介质(例如，固态硬盘(solid state  disk，SSD))等。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (30)

  1. 一种上报信道状态信息CSI的方法，其特征在于，包括：
    确定CSI状态；
    在CSI状态为无效时，发送预设CSI。
  2. 如权利要求1所述的方法，其特征在于，所述确定CSI状态具体包括，在到达CSI读取时机时，确定CSI状态。
  3. 如权利要求2所述的方法，其特征在于，所述读取时机与CSI上报时机相关联，且在所述CSI上报时机之前到达，所述发送预设CSI为在所述CSI上报时机到达时，发送预设CSI。
  4. 如权利要求1至3中任一项所述的方法，其特征在于，对于收到的预设消息，将CSI状态设置为无效。
  5. 如权利要求3所述的方法，其特征在于，所述预设消息为下列消息之中的一种：
    CSI上报配置消息；
    CSI重配置消息；
    服务小区激活消息；
    带宽部分切换消息；
    半持续CSI上报激活消息。
  6. 如权利要求1至5中任一项所述的方法，其特征在于，在计算得到CSI时，将CSI状态设置为有效。
  7. 如权利要求1至6中任一项所述的方法，其特征在于，所述预设CSI为缺省CSI。
  8. 一种上报信道状态信息CSI的方法，其特征在于，包括：
    接收预设消息；
    在该预设消息导致无法在CSI上报时机到达之前获得有效CSI时，在CSI上报时机到达时，发送预设CSI。
  9. 如权利要求8所述的方法，其特征在于，所述预设消息为下列消息之中的一种：
    CSI上报配置消息；
    CSI重配置消息；
    服务小区激活消息；
    带宽部分切换消息；
    半持续CSI上报激活消息。
  10. 如权利要求8或9所述的方法，其特征在于，所述预设CSI为缺省CSI。
  11. 一种接收信道状态信息CSI的方法，其特征在于，包括：
    发送预设消息；
    在CSI上报时机接收预设CSI。
  12. 如权利要求11所述的方法，其特征在于，所述预设消息为下列消息之中的一种：
    CSI上报配置消息；
    CSI重配置消息；
    服务小区激活消息；
    带宽部分切换消息；
    半持续CSI上报激活消息。
  13. 如权利要求11或12所述的方法，其特征在于，所述预设CSI为缺省CSI。
  14. 一种通信装置，其特征在于，包括：
    处理单元，用于确定CSI状态；
    发送单元，用于在CSI状态为无效时，发送预设CSI。
  15. 如权利要求14所述的装置，其特征在于，所述处理单元具体用于：在到达CSI读取时机时，确定CSI状态。
  16. 如权利要求15所述的装置，其特征在于，所述读取时机与CSI上报时机相关联，且在所述CSI上报时机之前到达，所述处理单元具体用于：在所述CSI上报时机到达时，发送预设CSI。
  17. 如权利要求14至16中任一项所述的装置，其特征在于，所述装置还包括接收单元，用于：接收预设消息；
    所述处理单元还用于：对于收到的预设消息，将CSI状态设置为无效。
  18. 如权利要求17所述的装置，其特征在于，所述预设消息为下列消息之中的一种：
    CSI上报配置消息；
    CSI重配置消息；
    服务小区激活消息；
    带宽部分切换消息；
    半持续CSI上报激活消息。
  19. 如权利要求14至18中任一项所述的装置，其特征在于，所述处理单元还用于：在计算得到CSI时，将CSI状态设置为有效。
  20. 如权利要求14至19中任一项所述的装置，其特征在于，所述预设CSI为缺省CSI。
  21. 一种通信装置，其特征在于，包括：
    接收单元，用于接收预设消息；
    发送单元，用于在该预设消息导致无法在CSI上报时机到达之前获得有效CSI时，在CSI上报时机到达时，发送预设CSI。
  22. 如权利要求21所述的装置，其特征在于，所述预设消息为下列消息之中的一种：
    CSI上报配置消息；
    CSI重配置消息；
    服务小区激活消息；
    带宽部分切换消息；
    版持续CSI上报激活消息。
  23. 如权利要求21或22所述的装置，其特征在于，所述预设CSI为缺省CSI。
  24. 一种通信装置，其特征在于，包括：
    发送单元，用于发送预设消息；
    接收单元，用于在CSI上报时机接收预设CSI。
  25. 如权利要求24所述的装置，其特征在于，所述预设消息为下列消息之中的一种：
    CSI上报配置消息；
    CSI重配置消息；
    服务小区激活消息；
    带宽部分切换消息；
    半持续CSI上报激活消息。
  26. 如权利要求24或25所述的装置，其特征在于，所述预设CSI为缺省CSI。
  27. 一种通信装置，其特征在于，包括：
    至少一个处理器；以及与所述至少一个处理器通信连接的存储器、通信接口；
    其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述至少一个处理器通过执行所述存储器存储的指令，使得所述装置通过所述通信接口执行如权利要求1-7或8-10中任一项所述的方法。
  28. 一种通信装置，其特征在于，包括：
    至少一个处理器；以及与所述至少一个处理器通信连接的存储器、通信接口；
    其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述至少一个处理器通过执行所述存储器存储的指令，使得所述装置通过所述通信接口执行如权利要求11-13中任一项所述的方法。
  29. 一种计算机可读存储介质，其特征在于，包括程序或指令，当所述程序或指令在计算机上运行时，使得如权利要求1-7或8-10中任一项所述的方法被执行。
  30. 一种计算机可读存储介质，其特征在于，包括程序或指令，当所述程序或指令在计算机上运行时，使得如权利要求11-13中任一项所述的方法被执行。
PCT/CN2021/092991 2020-08-26 2021-05-11 一种上报、接收csi的方法及对应装置 WO2022041840A1 (zh)

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