WO2022028551A1 - 一种通信方法、装置及计算机可读存储介质 - Google Patents

一种通信方法、装置及计算机可读存储介质 Download PDF

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Publication number
WO2022028551A1
WO2022028551A1 PCT/CN2021/111007 CN2021111007W WO2022028551A1 WO 2022028551 A1 WO2022028551 A1 WO 2022028551A1 CN 2021111007 W CN2021111007 W CN 2021111007W WO 2022028551 A1 WO2022028551 A1 WO 2022028551A1
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WIPO (PCT)
Prior art keywords
terminal device
csi
timer
indication information
time
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PCT/CN2021/111007
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English (en)
French (fr)
Inventor
黄海宁
黎超
张莉莉
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华为技术有限公司
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Publication of WO2022028551A1 publication Critical patent/WO2022028551A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method, an apparatus, and a computer-readable storage medium.
  • the terminal equipment generally uses a power supply device with limited power such as a battery. Therefore, when the power consumption of the terminal equipment is large, the use time of the terminal equipment is short. For example, when the terminal device is always in the receiving state, the power consumption of the terminal device is relatively large.
  • discontinuous reception has been introduced in the industry.
  • DRX includes an active period and a dormant period. When the terminal device is in the active period, it monitors the physical downlink control channel (PDCCH). When the terminal device is in the dormant period, it does not monitor the PDCCH, thereby reducing the power consumption of the terminal device. .
  • the sidelink (sidelink, SL) can determine the transmission resource through perception, for example, determine the resource for transmitting the CSI report.
  • SL sidelink
  • the terminal equipment cannot receive information when it is in the dormant period of DRX, the terminal equipment cannot determine the transmission resources through sensing, or the sensing time is shortened, which increases the probability of collision of the determined transmission resources and reduces the reliability of CSI report transmission.
  • the embodiments of the present application disclose a communication method, an apparatus, and a computer-readable storage medium, which are used to ensure the reliability of CSI report transmission.
  • a first aspect discloses a communication method.
  • the communication method can be applied to a second terminal device, and can also be applied to a module (eg, a chip) in the second terminal device.
  • the second terminal device is used as an example for description below.
  • the communication method may include: sending first indication information to a first terminal device, activating a first timer, and monitoring a physical sidelink control channel (PSCCH) or a sidelink control channel (PSCCH) within an activation time of the first timer.
  • Downlink control information sidelink control information, SCI
  • the first indication information is used to trigger the reporting of channel state information (channel state information, CSI).
  • the second terminal device may send indication information for triggering CSI reporting to the first terminal device, and activate a timer, and within the activation time of the timer, the PSCCH or SCI may be monitored, so that the second terminal The device can receive information from other terminal devices, network devices and other devices within the activation time of this timer.
  • a timer can be activated, which can solve the problem that the terminal device is in DRX due to the introduction of DRX in SL.
  • the technical problem is that the CSI report fed back by the first terminal device cannot be received due to the dormancy period.
  • a timer can be activated, and the second terminal device can keep the monitoring state within the activation time of the timer, which can ensure that the second terminal device The device will not miss the CSI report fed back by the first terminal device within the activation time of the timer, so that the reliability of the CSI report transmission can be guaranteed.
  • monitoring the PSCCH or the SCI is used to receive the CSI report from the first terminal device.
  • the second terminal device monitors the PSCCH or the SCI within the activation time of the timer in order to receive the CSI report from the first terminal device. Since the second terminal device is in the dormant period of DRX and cannot receive the CSI report fed back by the first terminal device, therefore, when the second terminal device is in DRX, the reliability of CSI report transmission can be guaranteed.
  • the first indication information is carried on a first physical sidelink shared channel (physical sidelink shared channel, PSSCH).
  • PSSCH physical sidelink shared channel
  • the first PSSCH may further include a CSI-reference signal (reference signal, RS).
  • RS reference signal
  • the second terminal device in addition to sending the indication information for triggering CSI reporting to the first terminal device, the second terminal device also sends the CSI-RS to the first terminal device, so that when the first terminal device needs the CSI-RS
  • the CSI report can be directly generated according to the received CSI-RS without the need to obtain the CSI-RS specially, which can ensure the reliability of CSI transmission and reduce the power consumption of the first terminal device.
  • the activation of the first timer by the second terminal device may include: at the Mth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, activating the first timer, M is an integer greater than or equal to 1.
  • the second terminal device activates the first timer in the symbol after the first PSSCH, the first indication information, or the end symbol of the CSI-RS, instead of activating the timer when the first PSSCH starts to be sent , since the first terminal device needs time to generate the CSI report after receiving the CSI trigger, the CSI report will not be fed back immediately when the second terminal device starts to send the first PSSCH. Therefore, starting the timer later can reduce the monitoring time of the second terminal device and reduce unnecessary activation time. Therefore, the power consumption of the terminal device can be reduced under the condition of ensuring the transmission reliability of the CSI report.
  • activating the first timer by the second terminal device may include: activating the first timer in the Mth timeslot after the timeslot where the first PSSCH, the first indication information or the CSI-RS is located , M is an integer greater than or equal to 1.
  • the second terminal device activates the first timer in the first time slot after the time slot where the first PSSCH, the first indication information, or the CSI-RS is located, instead of The timer is activated at the first symbol after the end symbol of the first PSSCH. Since the first terminal device needs time to generate a CSI report after receiving the CSI trigger, the CSI report will not be fed back immediately after the second terminal device sends the first PSSCH. And the candidate position of PSCCH is in a fixed symbol position of a time slot (2 PSCCH symbols are the second symbol and the third symbol; PSCCH symbols are 3, the second symbol, the third symbol and the fourth symbol. symbols). Therefore, starting the timer later can reduce the monitoring time of the second terminal device and reduce unnecessary activation time. Therefore, the power consumption of the terminal device can be reduced under the condition of ensuring the transmission reliability of the CSI report.
  • the activation time of the first timer is determined according to the upper limit of the CSI reporting delay.
  • the CSI report since the channel state information changes with time, the CSI report reflects the channel state and is time-sensitive. Therefore, when the time interval between the indication information for triggering CSI reporting and the feedback CSI report is long, the reported CSI report may not reflect the channel state when CSI reporting is triggered, so that the CSI report loses timeliness.
  • the upper limit of the CSI report delay is the maximum time limit for ensuring the timeliness of the CSI report. Therefore, in order to ensure the timeliness of the CSI report, the activation time of the timer should consider the upper limit of the CSI report delay.
  • the activation time of the first timer is less than or equal to a CSI report latency bound (report latency bound).
  • the CSI report since the channel state information changes with time, the CSI report reflects the channel state and is time-sensitive. Therefore, when the time interval between the indication information for triggering CSI reporting and the feedback CSI report is long, the reported CSI report may not reflect the channel state when CSI reporting is triggered, so that the CSI report loses timeliness.
  • the upper limit of the CSI report delay is the maximum time limit for ensuring the timeliness of the CSI report. Therefore, in order to ensure the timeliness of the CSI report, the activation time of the timer may be less than or equal to the upper limit of the CSI report delay.
  • the activation of the first timer by the second terminal device includes: at the Nth symbol after the end symbol of the first PSSCH, the first indication information or the CSI-RS, activating the first timer, where N is An integer greater than the computation time of the CSI.
  • the second terminal device activates the first timer after the calculation time of CSI after the first PSSCH, the first indication information, or the end symbol of the CSI-RS, rather than when the first PSSCH starts to be sent.
  • the activation of the timer is also not to activate the timer immediately or immediately after the first PSSCH, the first indication information or the CSI-RS are sent. Since it takes a period of time between the first terminal equipment receiving the indication information for triggering the CSI reporting and the generation of the CSI report, this period of time is the calculation time of CSI, and the first terminal equipment will not send the CSI report within this period of time, Correspondingly, the second terminal equipment will not receive the CSI report sent by the first terminal equipment within this period of time.
  • the second terminal equipment may not monitor the control signaling or activate the timer within this period of time.
  • the time for the second terminal device to monitor the control signaling is further reduced, so that the power consumption of the terminal device can be reduced as much as possible under the condition of ensuring the transmission reliability of the CSI report.
  • the activation time of the first timer is determined according to the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the CSI report since the channel state information changes with time, the CSI report reflects the channel state and is time-sensitive. Therefore, when the time interval between the indication information for triggering CSI reporting and the feedback CSI report is long, the reported CSI report may not be the channel state report when CSI reporting is triggered, so that the CSI report loses timeliness.
  • the upper limit of the CSI report delay is the maximum time limit to ensure the timeliness of the CSI report. Therefore, the activation time of the first timer needs to consider the upper limit of the CSI reporting delay.
  • the activation time of the first timer since the first timer is activated after the calculation time of CSI after the end symbol of the first PSSCH, the first indication information or CSI-RS, the activation time of the first timer also needs to consider the calculation time of CSI .
  • the activation time of the first timer is less than or equal to the difference between the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the CSI report since the channel state information changes with time, the CSI report reflects the channel state and is time-sensitive. Therefore, when the time interval between the indication information for triggering CSI reporting and the feedback CSI report is long, the reported CSI report may not be the channel state report when CSI reporting is triggered, so that the CSI report loses timeliness.
  • the upper limit of the CSI report delay is the maximum time limit to ensure the timeliness of the CSI report. Because the first timer is activated after the calculation time of the CSI after the first PSSCH, the first indication information or the end symbol of the CSI-RS. Therefore, in order to ensure the timeliness of the CSI report, the activation time of the timer may be less than or equal to the difference between the upper limit of the CSI report delay and the calculation time of the CSI.
  • the communication method may further include: in the first symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, activating the second timer, and in the second timer PSCCH or SCI is not monitored during the activation time.
  • the second terminal device may be in the active period of DRX during this period, and the second terminal device needs to monitor when it is in the active period of DRX. Therefore, the second terminal device monitors and cannot receive the feedback CSI report during this period of time.
  • the second terminal device uses another timer, so that the second terminal device does not listen to receive the feedback CSI report within the activation time of the other timer, so that the power consumption of the terminal device can be further reduced.
  • the first indication information may include a second-level SCI
  • the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the communication method may further include: when a CSI report from the first terminal device is received or the first timer times out, determining that the first timer expires.
  • the second terminal device when the second terminal device receives the CSI report from the first terminal device, it indicates that the function of the timer has been completed, and the first timer expires, so that the second terminal device will not receive the CSI report from the first terminal device.
  • the CSI report of the terminal device continues to monitor, so that the power consumption of the terminal device can be reduced.
  • the timer expires, it indicates that the probability of the first terminal device feeding back the CSI report is small, or even if the CSI report fed back by the first terminal device can be received later, because the CSI report loses its timeliness, there is not much chance of receiving the CSI report. significance. Therefore, there is no need to monitor the control signaling, and the first timer is invalid, so that the second terminal device does not continue to monitor for receiving the CSI report from the first terminal device, so that the power consumption of the terminal device can be reduced.
  • a second aspect discloses a communication method.
  • the communication method can be applied to a first terminal device, and can also be applied to a module (eg, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: receiving the first indication information from the second terminal device, activating a third timer, and sending a CSI report to the second terminal device within the activation time of the third timer.
  • the first indication information is used to trigger CSI reporting.
  • the first terminal device may receive the indication information for triggering CSI reporting from the second terminal device, activate a timer, and send the CSI report to the second terminal device within the activation time of the timer.
  • a timer can be activated, so as to solve the problem that the terminal device is in a situation where DRX is introduced into NR SL.
  • the first terminal device Since the first terminal device receives the information that triggers the CSI report from the second terminal device, it can obtain transmission resources within the activation time of a timer and send the CSI report to the second terminal device. Therefore, it is possible to ensure that the CSI report is transmitted without delay. reliability.
  • sending the CSI report to the second terminal device by the first terminal device within the activation time of the third timer may include: monitoring the PSCCH or SCI, monitoring the PSCCH or SCI, and monitoring the PSCCH or SCI within the activation time of the third timer. for determining the second PSSCH; sending the second PSSCH to the second terminal device, where the second PSSCH includes the CSI report.
  • the first terminal device can monitor the PSCCH or the SCI within the activation time of the third timer, so that when the first terminal device uses mode 2 to determine the SL transmission resource, the first terminal device can monitor the SL transmission resource by sensing or Partial sensing is used to determine the resources used for sending CSI reports, which can ensure that the resources used for sending CSI are idle resources, available resources, or resources with less interference, which can reduce the interference to the transmission of CSI reports, so that the Ensure the reliability of CSI report transmission.
  • the first indication information is carried on the first PSSCH.
  • the first PSSCH may further include CSI-RS.
  • the first terminal device in addition to receiving the indication information for triggering CSI reporting from the second terminal device, may also receive CSI-RS from the second terminal device together, and when a CSI report needs to be generated In this case, the received CSI-RS can be directly used without the need to obtain information for generating the CSI report, which can reduce the processing process of the first terminal device, thereby ensuring the timeliness of the CSI report and better performing link automation.
  • the adaptive transmission reduces the power consumption of the first terminal device.
  • activating the third timer by the first terminal device may include: at the Mth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, activating the third timer, M is an integer greater than or equal to 1.
  • the first terminal device activates the third timer in the symbol after the first PSSCH, the first indication information, or the end symbol of the CSI-RS, instead of activating the timer when it starts to receive the first PSSCH. Since the first terminal device has not yet generated the CSI report when it starts to receive the first PSSCH, the CSI report will not be sent. It can be seen that the symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS activates the third timer, which can reduce the time for the first terminal device to monitor the control signaling, thereby ensuring the transmission reliability of the CSI report. reduce the power consumption of the terminal equipment.
  • activating the third timer by the first terminal device may include: activating the third timer in the Mth time slot after the time slot where the first PSSCH, the first indication information or the CSI-RS is located , M is an integer greater than or equal to 1.
  • the first terminal device activates the third timer in the first time slot after the time slot where the first PSSCH, the first indication information, or the CSI-RS is located, instead of receiving The timer is activated at the first symbol after the end symbol of the first PSSCH. Since the first terminal device needs processing time to generate the CSI report after receiving the first PSSCH, the CSI report cannot be sent immediately. Therefore, within the time interval between the end symbol of the first PSSCH and the start symbol of the next time slot of the time slot where the first PSSCH is located, the first terminal device may be in an inactive state.
  • the third timer is activated in the first time slot after the time slot where the RS is located, which can reduce the time for the first terminal device to monitor the control signaling, thereby reducing the power consumption of the terminal device while ensuring the transmission reliability of the CSI report .
  • the activation time of the third timer is determined according to the upper limit of the CSI reporting delay.
  • the CSI report since the channel state information changes with time, when the time interval between the indication information for triggering the CSI report and the time for sending the CSI report is long, the CSI report may lose its time limit. sex.
  • the upper limit of the CSI report delay is the maximum time limit for ensuring the timeliness of the CSI report.
  • the sent CSI report is meaningless due to the loss of timeliness. Therefore, in order to ensure the reliability of CSI report transmission, in order to ensure the timeliness of the sent CSI report, and in order to reduce the power consumption of the first terminal device, the activation time of the timer should take into account the upper limit of the CSI report delay.
  • the activation time of the third timer is less than or equal to the upper limit of the CSI reporting delay.
  • the CSI report since the channel state information changes with time, when the time interval between the indication information for triggering the CSI report and the time for sending the CSI report is long, the CSI report may lose its time limit. sex.
  • the upper limit of the CSI report delay is the maximum time limit for ensuring the timeliness of the CSI report.
  • the sent CSI report is meaningless due to the loss of timeliness. Therefore, in order to ensure the reliability of the CSI report transmission, to ensure the timeliness of the sent CSI report, and to reduce the power consumption of the first terminal device, the activation time of the timer may be less than or equal to the upper limit of the CSI report delay.
  • activating the third timer by the first terminal device may include: at the Nth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, activating the third timer, N is an integer greater than the computation time of the CSI.
  • the first terminal device activates the third timer after the calculation time of the CSI after the first PSSCH, the first indication information or the end symbol of the CSI-RS, instead of activating the timer when it starts to receive the first PSSCH , and the timer is not activated immediately after receiving the first PSSCH, the first indication information or the CSI-RS. Since it takes a period of time between the first terminal device receiving the indication information triggering the CSI report and the generation of the CSI report, the period of time is the calculation time of the CSI, and the first terminal device will not send the CSI report within this period of time.
  • reactivating the timer after this period of time can prevent the first terminal device from monitoring the control signaling during this period, which can further reduce the time for the first terminal device to monitor the control signaling, thereby ensuring the CSI
  • the power consumption of the terminal equipment is reduced as much as possible under the condition of reporting transmission reliability.
  • the activation time of the third timer is determined according to the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation time of the timer needs to consider the upper limit of the CSI reporting delay. Since the timer activates the first timer after the calculation time of CSI after the first PSSCH, the first indication information or the end symbol of the CSI-RS, the activation time of the timer also needs to consider the calculation time of CSI.
  • the activation time of the third timer is less than or equal to the difference between the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the sent CSI report may lose its time limit. sex. Since the timer is activated after the calculation time of CSI after the first PSSCH, the first indication information or the end symbol of the CSI-RS, in order to ensure the reliability of CSI report transmission, in order to ensure the transmission of the CSI report and in order to reduce the power consumption of the first terminal device, the activation time of the timer may be less than or equal to the difference between the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the communication method may further include: in the first symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, activating a fourth timer, and at the end of the fourth timer PSCCH or SCI is not monitored during the activation time.
  • the first terminal device takes a period of time between when the first terminal device receives the indication information that triggers the CSI report and when the CSI report is generated, and the first terminal device does not send the CSI report during this time.
  • the first terminal equipment needs to monitor during this period. Therefore, another timer can be used during this period so that the first terminal equipment can monitor The control signaling may not be monitored during the activation time of the other timer, thereby further reducing the power consumption of the terminal device.
  • the first indication information may include a second-level SCI
  • the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the communication method may further include: when the sending of the CSI report is completed, determining that the third timer expires.
  • the third timer is invalid, so that the first terminal device will not Unnecessary monitoring is performed for the CSI report, so that the power consumption of the terminal device can be reduced.
  • the communication method may further include: generating a CSI report according to the CSI-RS.
  • the first terminal device can directly use the received CSI-RS to generate a CSI report without the need to specifically acquire information for generating a CSI report, which can reduce the processing process, thereby ensuring the timeliness of the CSI report, and better
  • the link adaptive transmission can reduce the power consumption of the terminal equipment.
  • a third aspect discloses a communication method.
  • the communication method can be applied to a first terminal device, and can also be applied to a module (eg, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: receiving second indication information from the second terminal equipment, where the second indication information is used to trigger CSI reporting; when the first terminal equipment is in DRX, sending the second terminal equipment to the second terminal equipment within the upper limit of the CSI reporting delay
  • the third PSSCH, the third PSSCH includes the CSI report; when there is an intersection between the upper limit of the CSI report delay and the activation time of DRX, the time domain resources of the third PSSCH belong to the intersection between the upper limit of the CSI report delay and the activation time of DRX .
  • the first terminal device may send the CSI report to the second terminal device within the upper limit of the CSI report delay, which can ensure the timeliness of the CSI report.
  • the first terminal device when the first terminal device is in DRX, when there is an intersection between the upper limit of the CSI report delay and the activation time of DRX, the first terminal device sends the CSI report in the intersection of the upper limit of the CSI report delay and the activation time of DRX, and When the DRX of the first terminal device and the second terminal device are aligned, it is convenient for the second terminal device to receive the CSI report. Successful transmission of CSI reports and link adaptation can be guaranteed.
  • the resources of the third PSSCH are resources determined by random selection.
  • the first terminal device when there is no intersection between the upper limit of the CSI reporting delay and the activation time of DRX, it indicates that the first terminal device is in the dormant period of DRX within the upper limit of the CSI reporting delay, and the first terminal device cannot use the sensing or partial sensing to determine the transmission resources. Since the sensing result cannot be obtained, the reliability and interference situation of the determined transmission resources cannot be guaranteed. Therefore, the first terminal device can randomly select the resources for sending the CSI report, so as to When the first terminal device is in the dormant period of DRX, normal transmission of the CSI report can be guaranteed. At this time, the random selection method may not be in the same resource pool as the sensing or partial sensing method, so as to avoid the unfair problem caused by different interference caused by the terminal equipment transmitting data.
  • the resources of the third PSSCH are resources determined through sensing or partial sensing.
  • the first terminal device when there is an intersection between the upper limit of the CSI reporting delay and the activation time of DRX, the first terminal device can determine the transmission resources through sensing or partial sensing, and can ensure that the resources used for sending CSI are idle resources, Available resources or resources with less interference can reduce interference to CSI report transmission, thereby ensuring reliability of CSI report transmission.
  • the resources of the third PSSCH are determined by sensing or partial sensing, and the third PSSCH resource is determined by sensing or partial sensing.
  • the second ratio is the ratio of the activation time of DRX and the overlapping time of the sensing window to the sensing window.
  • the resource can be determined using a perceptual approach.
  • the resources of the third PSSCH are determined by random selection, and the resources of the third PSSCH are determined by random selection.
  • the second ratio is the ratio of the activation time of DRX and the overlapping time of the sensing window to the sensing window.
  • the second indication information is carried on the fourth PSSCH.
  • the second indication information is transmitted through the physical sideline shared channel.
  • the fourth PSSCH may further include CSI-RS.
  • the first terminal device in addition to receiving the indication information for triggering CSI reporting from the second terminal device, the first terminal device also receives the CSI-RS from the second terminal device.
  • the received CSI-RS can be directly used without the need to acquire information for generating a CSI report, the information acquisition process can be reduced, and the timeliness of the CSI report can be ensured, so that the CSI report can be better
  • the link adaptive transmission can reduce the power consumption of the terminal equipment.
  • the communication method may further include: generating a CSI report according to the CSI-RS.
  • the first terminal device can directly use the received CSI-RS to generate a CSI report, and does not need to specifically acquire information for generating a CSI report, which can reduce the information acquisition process, thereby ensuring the timeliness of the CSI report, and more efficient Good link-adaptive transmission can reduce the power consumption of terminal equipment.
  • the second indication information may include a second-level SCI
  • the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • a fourth aspect discloses a communication method, which can be applied to a second terminal device or a module (eg, a chip) in the second terminal device.
  • the second terminal device is used as an example for description below.
  • the communication method may include: sending a CSI report delay upper limit to the first terminal device, where the CSI report delay upper limit is greater than the sum of the sleep time of the DRX and the calculation time of the CSI.
  • the CSI report since the channel state information changes with time, the CSI report reflects the channel state and is time-sensitive. Therefore, the time interval between the first terminal device receiving the information triggering the CSI reporting and reporting the CSI report cannot be too long, otherwise the CSI report may lose the timeliness.
  • the upper limit of the CSI report delay is the maximum time that can ensure the timeliness of the CSI report.
  • the second terminal device may configure the upper limit of the CSI report delay to the first terminal device. Since the first terminal device needs CSI calculation time to generate the CSI report, the first terminal device cannot report to the DRX sleep time and the process of generating the CSI report. The second terminal device sends the CSI report.
  • the upper limit of the CSI report delay configured by the second terminal device to the first terminal device may be greater than the sum of the sleep time of DRX and the calculation time of CSI, so as to prevent the first terminal device from being unable to pass the sensing
  • the CSI report is sent from the resource determined by the method of partial sensing, it can be ensured that the first terminal device has enough time and better transmission resources to send the CSI report, thereby improving the reliability of the CSI report transmission.
  • a fifth aspect discloses a communication method.
  • the communication method can be applied to a first terminal device, and can also be applied to a module (eg, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: receiving a CSI report delay upper limit from the second terminal device, where the CSI report delay upper limit is greater than the sum of the sleep time of the DRX and the calculation time of the CSI.
  • the CSI report since the channel state information changes with time, the CSI report reflects the channel state and is time-sensitive. Therefore, the time interval between the first terminal device receiving the information triggering the CSI report and sending the CSI report cannot be too long, otherwise the CSI report may lose the timeliness.
  • the upper limit of the CSI report delay is the maximum time that can ensure the timeliness of the CSI report.
  • the first terminal device can receive the upper limit of the CSI reporting delay configured by the second terminal device. If the first terminal device receives the indication information that triggers CSI reporting, it is in the active period of DRX, and the time between this time and the dormant period of DRX is The interval is less than or equal to the calculation time of the CSI.
  • the first terminal device Since the time for the first terminal device to generate the CSI report requires the calculation time of the CSI, the first terminal device cannot generate the CSI report during the activation period of this DRX cycle.
  • the first terminal device When the CSI report can be sent, the first terminal device is already in the dormant period of DRX, and the first terminal device cannot determine the transmission resource through sensing or partial sensing, and needs to wait until the activation period of the next DRX cycle.
  • the CSI reporting loses its timeliness and the reporting will be meaningless.
  • the configured upper limit of the CSI report delay can be greater than the sum of the sleep time of DRX and the calculation time of CSI, so as to avoid the situation that the first terminal device cannot send the CSI report through the resource determined by perception or partial perception, and it can ensure that the first terminal device The device has enough time and better transmission resources to send the CSI report, so that the reliability of the CSI report transmission can be improved.
  • a sixth aspect discloses a communication method, which can be applied to a second terminal device or a module (eg, a chip) in the second terminal device.
  • the second terminal device is used as an example for description below.
  • the communication method may include: sending a first duration to the first terminal device, the first duration is greater than or equal to the upper limit of CSI reporting delay or the calculation time of CSI, and the first duration is the duration of the inactive timer.
  • the second terminal device may configure the first terminal device with the duration of the inactive timer, and the duration may be greater than or equal to the upper limit of the CSI reporting delay or the calculation time of the CSI, so that the second terminal device can notify the first terminal device of the duration of the inactive timer.
  • the first terminal device can determine the resources for reporting the CSI report by sensing or partially sensing within the activation time of the inactive timer, and the first terminal device has enough resources. Time can generate CSI reports, so that the reliability of CSI report transmission can be guaranteed.
  • the sending of the first duration by the second terminal device to the first terminal device may include: when the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is less than the calculation time of the CSI , and send the first duration to the first terminal device.
  • the first terminal device when the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is less than the calculation time of the CSI, after receiving the information for triggering the CSI reporting, the first terminal device prepares the When the CSI report is generated, the first terminal device may be in the dormant period of DRX, so that the first terminal device cannot determine the transmission resource according to the sensing or partial sensing method, or the determined transmission resource collides due to the shortening of the sensing time. The probability increases, so that the CSI report cannot be reported, or the reliability of the CSI report transmission cannot be guaranteed.
  • the second terminal device may configure the first terminal device with the duration of the inactivity timer, which is greater than or equal to the upper limit of the CSI reporting delay or the calculation time of CSI, so that after the first terminal device receives the indication information used to trigger CSI reporting from the second terminal device, it can detect or partially
  • the resource for reporting the CSI report is determined in a perceptual manner, and the first terminal device has enough time to generate the CSI report, so that the reliability of the transmission of the CSI report can be guaranteed.
  • a seventh aspect discloses a communication method.
  • the communication method can be applied to a first terminal device or a module (eg, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: receiving a first duration from the second terminal device, the first duration is greater than or equal to a CSI reporting delay upper limit or a CSI calculation time, and the first duration is the duration of the inactive timer.
  • the first terminal device after the first terminal device receives the information that triggers the CSI report during the activation period of the DRX, if the CSI report cannot be prepared (ie, generated) or is just ready during the activation period of the DRX cycle, the first terminal device will When the terminal device is ready to send the CSI report, the first terminal device is in the dormant period of DRX, so that the first terminal device cannot determine the transmission resource according to the sensing or partial sensing method, or the determined transmission resource conflicts due to the shortened sensing time The probability of the CSI report is increased, so that the CSI report cannot be reported, or the reliability of the CSI report transmission cannot be guaranteed.
  • the first terminal device may receive the duration of the inactive timer configured by the second terminal device, and the duration may be greater than or equal to the upper limit of the CSI reporting delay or the calculation time of the CSI.
  • the first terminal device After receiving the indication information that triggers the CSI report, the first terminal device can activate the inactive timer, and within the activation time of the inactive timer, the first terminal device can determine the resource for transmitting the CSI report by sensing or partially sensing, and sending the CSI report to the second terminal device through the determined resource.
  • the duration may be greater than or equal to the upper limit of the CSI reporting delay or the calculation time of the CSI. It can be seen that the reliability of CSI report transmission can be improved.
  • the first terminal device receiving the first duration from the second terminal device may include: when the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX cycle of the first terminal device is less than the CSI When calculating the time, the first duration is received from the second terminal device.
  • the first terminal device when the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is less than the calculation time of the CSI, after receiving the information for triggering the CSI reporting, the first terminal device prepares the When the CSI report is good, the first terminal device will be in the dormant period of DRX, so that the first terminal device cannot determine the transmission resource according to the perception or partial perception, or the probability of the determined transmission resource conflict increases due to the shortening of the perception time, Therefore, the CSI report cannot be reported, or the reliability of the transmission of the CSI report cannot be guaranteed, which reduces the timeliness of the CSI report.
  • the first terminal device can receive the duration of the inactive timer configured by the second terminal device.
  • the duration is greater than or equal to the upper limit of the CSI reporting delay or the calculation time of CSI, so that after the first terminal device receives the indication information from the second terminal device for triggering CSI reporting, it can pass the sensor during the activation time of the inactive timer.
  • the resource for reporting the CSI report is determined in a partially perceptual manner, and the first terminal device has enough time to generate the CSI report, so that the reliability of the CSI report transmission can be ensured.
  • An eighth aspect discloses a communication method, which can be applied to a first terminal device or a module (eg, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: receiving third indication information from the second terminal equipment, where the third indication information is used to trigger CSI reporting; when the overlap length between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal equipment is greater than or equal to the first time, sending a CSI report to the second terminal device.
  • the first terminal device may first determine whether the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is greater than or equal to (or greater than) the first time, when it is determined that the overlap time between the upper limit of the CSI reporting delay and the activation time of the first terminal equipment DRX is greater than or equal to (or greater than) the first time, indicating that the first terminal equipment
  • the CSI report can be generated during the active period of this DRX cycle, and the resource used for transmitting the CSI report can be determined in a perceptual or partial perceptual manner, and the CSI report can be sent to the second terminal device, which can improve the reliability of the transmission of the CSI report.
  • the first time may be the calculation time of the CSI, the first threshold, or the first proportion of the upper limit of the CSI reporting delay.
  • the calculation time of the CSI is considered, and it can be ensured that the first terminal device has enough time to generate the CSI report.
  • the first threshold and the first ratio may be configured by the network device, may be pre-configured, may be adaptively determined by the first terminal device, or may be configured by the second terminal device.
  • the first ratio between the first threshold and the upper limit of the CSI report delay should be greater than or equal to the calculation time of the CSI.
  • the communication method may further include: when the overlap length between the upper limit of the CSI reporting delay and the activation time of the DRX is less than the first time, determining not to report the CSI report, or switching the period of the DRX, switching The overlapping length between the activation time of the later DRX and the upper limit of the CSI reporting delay is greater than or equal to the first time.
  • the CSI report when it is determined that the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is less than the first time, it indicates that the first terminal device cannot generate CSI during the activation period of the DRX cycle report, the CSI report may not be sent to the second terminal device, unnecessary processing may be reduced, and power consumption of the terminal device may be reduced.
  • the period of DRX can also be adjusted so that the overlap length between the activation time of the adjusted DRX and the upper limit of the CSI reporting delay is greater than or equal to the first time, so that the first terminal device can generate
  • the CSI report and the resource used for transmitting the CSI report can be determined in a perceptual or partially perceptual manner, and the CSI report can be sent to the second terminal device, so that the reliability of the transmission of the CSI report can be improved.
  • the first terminal device receiving the third indication information from the second terminal device may include: receiving the third indication information and the priority value of the third indication information from the second terminal device; the first The period for the terminal device to switch the DRX may include: when the value of the priority is less than the second threshold, switching the period for the DRX.
  • the first terminal device when the first terminal device receives the indication information for triggering CSI reporting, it can also receive the value of the priority of the indication information.
  • the overlapping time between the activation times of the DRX is less than the first time, it may be judged first whether the value of the priority of the indication information is less than the second threshold.
  • the value of the priority of the indication information is less than the second threshold, it indicates that the CSI report is more important.
  • the period of the DRX can be adjusted to ensure the reliability of the transmission of the important CSI report. sex. The smaller the priority value is, the higher the priority level is.
  • the third indication information is carried on the fifth PSSCH.
  • the fifth PSSCH may further include CSI-RS.
  • the first terminal device in addition to receiving the indication information for triggering CSI reporting from the second terminal device, the first terminal device also receives the CSI-RS from the second terminal device, so that the first terminal device can When necessary, the CSI report can be generated according to the CSI-RS, without the need to obtain the information for generating the CSI report, which can reduce the processing process, thereby ensuring the timeliness of the CSI report and better performing link adaptation. transmission, which can reduce the power consumption of the terminal device.
  • the communication method may further include: generating a CSI report according to the CSI-RS.
  • the first terminal device can directly generate the CSI report according to the received CSI-RS, and does not need to obtain the information for generating the CSI report specially, which can reduce the processing process, thereby ensuring the timeliness of the CSI report, and better
  • the link adaptive transmission can reduce the power consumption of the terminal equipment.
  • the third indication information may include a second-level SCI
  • the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • a ninth aspect discloses a communication method.
  • the communication method can be applied to a first terminal device, and can also be applied to a module (eg, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: receiving fourth indication information from the second terminal equipment, where the fourth indication information is used to trigger CSI reporting; when the overlap length between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal equipment When it is time, the period of the DRX is switched, and the overlapping length between the activation time of the switched DRX and the upper limit of the CSI reporting delay is greater than or equal to the first time.
  • the first terminal device may first determine whether the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is less than (or less than or equal to) the first time, and when it is determined that the overlap time between the upper limit of the CSI report delay and the activation time of the first terminal equipment DRX is less than (or less than or equal to) the first time, it indicates that the first terminal equipment
  • the CSI report cannot be generated during the activation period of this DRX cycle, and the DRX cycle can be adjusted so that the overlap length between the adjusted DRX activation time and the CSI report delay upper limit is greater than or equal to the first time, so that the first terminal device
  • a CSI report can be generated and the resource for transmitting the CSI report can be determined in a perceptual or partially perceptual manner, and the CSI report can be sent to the second terminal
  • the first time is the calculation time of the CSI, the first threshold, or the first ratio of the upper limit of the CSI reporting delay.
  • the calculation time of the CSI is considered, and it can be ensured that the first terminal device has enough time to generate the CSI report.
  • the first threshold and the first ratio may be configured by the network device, may be pre-configured, may be adaptively determined by the first terminal device, or may be configured by the second terminal device.
  • the first ratio between the first threshold and the upper limit of the CSI report delay should be greater than or equal to the calculation time of the CSI.
  • the first terminal device receiving the fourth indication information from the second terminal device may include: receiving the fourth indication information from the second terminal device and the value of the priority of the fourth indication information; the first The period for the terminal device to switch the DRX may include: when the value of the priority is less than the third threshold, switching the period for the DRX.
  • the first terminal device when the first terminal device receives the indication information for triggering CSI reporting, it can also receive the value of the priority of the indication information.
  • the overlapping time between the activation times of the DRX is less than the first time, it may be first determined whether the value of the priority of the indication information is less than the third threshold.
  • the value of the priority of the indication information is less than the third threshold, it indicates that the CSI report is more important.
  • the period of the DRX can be adjusted to ensure the reliability of the transmission of the important CSI report. sex. The smaller the priority value is, the higher the priority level is.
  • a tenth aspect discloses a communication method.
  • the communication method can be applied to a first terminal device or a module (for example, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: receiving the data packet from the second terminal device and the value of the priority of the data packet; and disabling the DRX when the value of the priority is less than a fourth threshold.
  • the first terminal device may first determine whether the value of the priority is less than the fourth threshold. When it is determined that the value of the priority is less than the fourth threshold, it indicates that the service corresponding to the data packet is more important, and DRX can be disabled. When the service is important, the first terminal device is in DRX, and there is a risk that the first terminal device cannot receive data. Therefore, DRX can be disabled, so as to ensure the reliability of important service transmission. The smaller the priority value is, the higher the priority level is.
  • An eleventh aspect discloses a communication method.
  • the communication method can be applied to a first terminal device, and can also be applied to a module (eg, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: receiving a data packet from the second terminal device and a value of the priority of the data packet; and adjusting the period of the DRX according to the value of the priority.
  • the first terminal device may adjust the period of the DRX according to the value of the priority. For example, when the priority value of the data packet is low, the DRX cycle or the activation time of the DRX cycle can be increased, so that the reliability of the service transmission corresponding to the data packet can be guaranteed. For another example, in the case where the value of the priority of the data packet is high, the DRX cycle or the activation time of the DRX cycle can be reduced, so that the time during which the first terminal device is in the active period can be reduced, thereby reducing the function of the terminal device. consumption. The smaller the priority value is, the higher the priority level is.
  • a twelfth aspect discloses a communication method, which can be applied to a first terminal device or a module (eg, a chip) in the first terminal device.
  • the first terminal device is used as an example for description below.
  • the communication method may include: when the first terminal device is in DRX, determining a resource selection mode according to a first ratio, where the first ratio is the ratio of the DRX activation time and the overlapping time of the sensing window to the sensing window; when the first ratio is greater than the first ratio
  • the threshold is five
  • the resource selection method is the perceptual method
  • the resource selection method is the random selection method.
  • the first terminal device when the first terminal device is in DRX, when the first terminal device wants to send data, it will be triggered to perform resource selection. Since the first terminal device is in DRX and cannot be in the receiving state all the time, when the ratio of the activation time of DRX and the overlapping time of the sensing window to the sensing window is less than 1, the first terminal device has less sensing results in the sensing window. For the terminal equipment that does not enter the DRX, the resource determined according to the sensing result has a high probability of resource conflict and a high probability of interference to other terminal equipment. When the ratio of the DRX activation time and the overlapping time of the sensing window to the sensing window is greater than the fifth threshold, it indicates that the sensing result can be trusted.
  • the sensing method can be used to determine the resource.
  • the ratio of the DRX activation time and the overlapping time of the sensing window to the sensing window is less than or equal to the fifth threshold, it means that the results determined by the sensing method are too few to guarantee the reliability of the resources determined by the sensing method, and the random selection method can be used to determine resource.
  • the sensing mode is sensing or partial sensing.
  • the sensing manner may be sensing or partial sensing.
  • a perception window is a continuous period of time.
  • the partial sensing window can be a continuous period of time or a set of discontinuous time slots.
  • the first resource pool is used for the selection method at any time, and the second resource pool is used for the perception method, and the first resource pool is different from the second resource pool.
  • the anytime selection mode has a dedicated resource pool, and does not share the resource pool with the sensing mode.
  • the fifth threshold is configured by the network device.
  • the fifth threshold may be configured by a network device.
  • the first terminal device can determine the resource selection mode according to the fifth threshold, and when the network device is not configured with the fifth threshold, the first terminal device determines the transmission resource by using the sensing mode.
  • a thirteenth aspect discloses a communication apparatus.
  • the communication apparatus may be a second terminal device or a module (eg, a chip) in the second terminal device.
  • the communication apparatus may include:
  • a sending unit configured to send first indication information to the first terminal device, where the first indication information is used to trigger CSI reporting;
  • a monitoring unit configured to monitor the PSCCH or the SCI within the activation time of the first timer.
  • the monitoring of the PSCCH or the SCI is used to receive a CSI report from the first terminal device.
  • the first indication information is carried on the first PSSCH.
  • the first PSSCH further includes CSI-RS.
  • the activation unit is specifically configured to activate the first timer at the Mth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS , the M is an integer greater than or equal to 1.
  • the activation unit is specifically configured to activate the first PSSCH, the first indication information, or the Mth time slot after the time slot where the CSI-RS is located, to activate the first A timer, where M is an integer greater than or equal to 1.
  • the activation time of the first timer is determined according to the upper limit of the CSI reporting delay.
  • the activation time of the first timer is less than or equal to the upper limit of the CSI reporting delay.
  • the activation unit is specifically configured to activate the first timer at the Nth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS , where N is an integer greater than the computation time of the CSI.
  • the activation time of the first timer is determined according to the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation time of the first timer is less than or equal to the difference between the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation unit is further configured to activate a second timer in the first symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS , the PSCCH or the SCI is not monitored during the activation time of the second timer.
  • the first indication information includes a second-level SCI
  • the second-level SCI includes a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the communication device may further include:
  • a determining unit configured to determine that the first timer expires when the CSI report from the first terminal device is received or the first timer expires.
  • a fourteenth aspect discloses a communication device, which can be a first terminal device, or a module (for example, a chip) in the first terminal device, and the communication device can include:
  • a receiving unit configured to receive first indication information from the second terminal device, where the first indication information is used to trigger CSI reporting;
  • a sending unit configured to send a CSI report to the second terminal equipment within the activation time of the third timer.
  • the sending unit is specifically used for:
  • monitoring the PSCCH or the SCI where the monitoring of the PSCCH or the SCI is used to determine the second PSSCH;
  • the second PSSCH including a CSI report.
  • the first indication information is carried on the first PSSCH.
  • the first PSSCH further includes CSI-RS.
  • the activation unit is specifically configured to activate a third timer at the Mth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS , the M is an integer greater than or equal to 1.
  • the activation unit is specifically configured to activate the third time slot after the first PSSCH, the first indication information, or the Mth time slot after the time slot where the CSI-RS is located.
  • the activation time of the third timer is determined according to the upper limit of the CSI reporting delay.
  • the activation time of the third timer is less than or equal to the upper limit of the CSI reporting delay.
  • the activation unit is specifically configured to activate a third timer at the Nth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS , where N is an integer greater than the computation time of the CSI.
  • the activation time of the third timer is determined according to the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation time of the third timer is less than or equal to the difference between the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation unit is further configured to activate a fourth timer in the first symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS , the PSCCH or the SCI is not monitored during the activation time of the fourth timer.
  • the first indication information includes a second-level SCI
  • the second-level SCI includes a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the communication device may further include:
  • a determining unit configured to determine that the third timer expires when the CSI report is sent.
  • the communication device may further include:
  • a generating unit configured to generate a CSI report according to the CSI-RS.
  • a fifteenth aspect discloses a communication apparatus.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device, and the communication apparatus may include:
  • a receiving unit configured to receive second indication information from a second terminal device, where the second indication information is used to trigger CSI reporting;
  • a sending unit configured to send a third PSSCH to the second terminal device within the CSI reporting delay upper limit when the first terminal device is in DRX, where the third PSSCH includes a CSI report;
  • the time domain resource of the third PSSCH belongs to the intersection between the upper limit of the CSI reporting delay and the activation time of the DRX.
  • the resources of the third PSSCH are resources determined by random selection.
  • the resources of the third PSSCH are resources determined through sensing or partial sensing.
  • the resources of the third PSSCH are perceptual or partial The determined resource is sensed, and the second ratio is the ratio of the activation time of the DRX and the overlapping time of the sensing window to the sensing window.
  • the resources of the third PSSCH are random The determined resource is selected, and the second ratio is the ratio of the activation time of the DRX and the overlapping time of the sensing window to the sensing window.
  • the second indication information is carried on the fourth PSSCH.
  • the fourth PSSCH further includes CSI-RS.
  • the communication device may further include:
  • a generating unit configured to generate a CSI report according to the CSI-RS.
  • the second indication information includes a second-level SCI
  • the second-level SCI includes a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • a sixteenth aspect discloses a communication apparatus.
  • the communication apparatus may be a second terminal device or a module (eg, a chip) in the second terminal device.
  • the communication apparatus may include:
  • a sending unit configured to send a CSI report delay upper limit to the first terminal device, where the CSI report delay upper limit is greater than the sum of the sleep time of the DRX of the first terminal device and the calculation time of the CSI.
  • a seventeenth aspect discloses a communication apparatus.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the communication apparatus may include:
  • a receiving unit configured to receive a CSI report delay upper limit from the second terminal device, where the CSI report delay upper limit is greater than the sum of the sleep time of the first terminal device DRX and the CSI calculation time.
  • the communication apparatus may be a second terminal device, or may be a module (eg, a chip) in the second terminal device.
  • the communication apparatus may include:
  • a sending unit configured to send a first duration to the first terminal device, where the first duration is greater than or equal to the upper limit of the CSI reporting delay or the calculation time of the CSI, and the first duration is the duration of the inactive timer.
  • the sending unit is specifically configured to, when the overlap time between the upper limit of the CSI report delay and the activation time of the first terminal device DRX is less than the calculation time of the CSI, send a message to the first terminal device.
  • the terminal device sends the first duration.
  • a nineteenth aspect discloses a communication apparatus.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device, and the communication apparatus may include:
  • a receiving unit configured to receive a first duration from the second terminal device, where the first duration is greater than or equal to an upper limit of CSI reporting delay or a CSI calculation time, and the first duration is the duration of the inactive timer.
  • the receiving unit is specifically configured to, when the overlap time between the upper limit of the CSI reporting delay and the activation time of the period of the DRX of the first terminal device is less than the calculation time of the CSI, receive the data from the second terminal.
  • the first duration of the device is specifically configured to, when the overlap time between the upper limit of the CSI reporting delay and the activation time of the period of the DRX of the first terminal device is less than the calculation time of the CSI.
  • a twentieth aspect discloses a communication apparatus.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device, and the communication apparatus may include:
  • a receiving unit configured to receive third indication information from the second terminal device, where the third indication information is used to trigger CSI reporting;
  • a sending unit configured to send a CSI report to the second terminal device when the overlap length between the upper limit of the CSI report delay and the activation time of the DRX of the first terminal device is greater than or equal to the first time.
  • the first time is CSI calculation time, a first threshold, or a first ratio of the upper limit of the CSI reporting delay.
  • the communication device may further include:
  • a processing unit configured to determine not to report the CSI report when the overlapping length between the upper limit of the CSI reporting delay and the activation time is less than the first time, or switch the period of the DRX, and the switched DRX The overlapping length between the activation time and the upper limit of the CSI reporting delay is greater than or equal to the first time.
  • the receiving unit is specifically configured to receive the third indication information from the second terminal device and the value of the priority of the third indication information
  • the period in which the processing unit switches the DRX includes:
  • the period of the DRX is switched.
  • the third indication information is carried on the fifth PSSCH.
  • the fifth PSSCH further includes CSI-RS.
  • the communication device may further include:
  • a generating unit configured to generate the CSI report according to the CSI-RS.
  • the third indication information includes a second-level SCI
  • the second-level SCI includes a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • a twenty-first aspect discloses a communication apparatus.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the communication apparatus may include:
  • a receiving unit configured to receive fourth indication information from the second terminal device, where the fourth indication information is used to trigger CSI reporting;
  • a switching unit configured to switch the period of the DRX when the overlapping length of the upper limit of the CSI report delay and the activation time of the DRX of the first terminal device is less than the first time, and the activation time of the switched DRX and the CSI report delay
  • the overlapping length between the upper limits is greater than or equal to the first time.
  • the first time is CSI calculation time, a first threshold, or a first ratio of the upper limit of the CSI reporting delay.
  • the receiving unit is specifically configured to receive fourth indication information and a priority value of the fourth indication information from the second terminal device;
  • the switching unit is specifically configured to switch the period of the DRX when the value of the priority is less than a third threshold.
  • a twenty-second aspect discloses a communication apparatus.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device, and the communication apparatus may include:
  • a receiving unit configured to receive the first data packet from the second terminal device and the value of the priority of the first data packet
  • a disabling unit configured to disable DRX when the value of the priority is less than the fourth threshold.
  • a twenty-third aspect discloses a communication apparatus.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the communication apparatus may include:
  • a receiving unit configured to receive the second data packet from the second terminal device and the value of the priority of the second data packet
  • An adjustment unit configured to adjust the period of the DRX according to the value of the priority.
  • a twenty-fourth aspect discloses a communication apparatus.
  • the communication apparatus may be a first terminal device, or may be a module (eg, a chip) in the first terminal device.
  • the communication apparatus may include: a determining unit for when the first terminal When a terminal device is in DRX, the resource selection mode is determined according to a first ratio, where the first ratio is the ratio of the activation time of the DRX and the overlapping time of the sensing window to the sensing window; when the first ratio is greater than the fifth threshold , the resource selection mode is a perceptual mode, and when the first ratio is less than or equal to the fifth threshold, the resource selection mode is a random selection mode.
  • the sensing manner is sensing or partial sensing.
  • the selection method at any time uses a first resource pool
  • the sensing method uses a second resource pool
  • the first resource pool is different from the second resource pool.
  • the fifth threshold is configured by a network device.
  • a twenty-fifth aspect discloses a communication apparatus, where the communication apparatus may be a second terminal device or a module (eg, a chip) in the second terminal device.
  • the communication device may include a processor, a memory, an input interface for receiving information from other communication devices other than the communication device, and an output interface for sending information outside the communication device.
  • the other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor causes the processor to execute the communication method disclosed in the first aspect or any embodiment of the first aspect.
  • a twenty-sixth aspect discloses a communication apparatus, where the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the communication device may include a processor, a memory, an input interface for receiving information from other communication devices other than the communication device, and an output interface for sending information outside the communication device.
  • the other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor causes the processor to execute the communication method disclosed in the second aspect or any embodiment of the second aspect.
  • a twenty-seventh aspect discloses a communication apparatus, where the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the communication device may include a processor, a memory, an input interface for receiving information from other communication devices other than the communication device, and an output interface for sending information outside the communication device.
  • the other communication device outputs information, when the processor executes the computer program stored in the memory, the processor is caused to execute the communication method disclosed in the third aspect or any embodiment of the third aspect, or the processing
  • the processor executes the communication method disclosed in the eighth aspect or any embodiment of the eighth aspect, or causes the processor to execute the communication method disclosed in the ninth aspect or any embodiment of the ninth aspect, or causes the processor to execute The communication method disclosed in the tenth aspect or any embodiment of the tenth aspect, or cause the processor to execute the communication method disclosed in the eleventh aspect or any embodiment of the eleventh aspect, or cause the processor to execute The communication method disclosed in the twelfth aspect or any embodiment of the twel
  • a twenty-eighth aspect discloses a communication apparatus, where the communication apparatus may be a second terminal device or a module (eg, a chip) in the second terminal device.
  • the communication device may include a processor, a memory, an input interface for receiving information from other communication devices other than the communication device, and an output interface for sending information outside the communication device.
  • the other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor causes the processor to execute the communication method disclosed in the fourth aspect or any one of the implementation manners of the fourth aspect.
  • a twenty-ninth aspect discloses a communication apparatus, where the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the communication device may include a processor, a memory, an input interface for receiving information from other communication devices other than the communication device, and an output interface for sending information outside the communication device.
  • the other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor causes the processor to execute the communication method disclosed in the fifth aspect or any one of the implementation manners of the fifth aspect.
  • a thirtieth aspect discloses a communication apparatus, where the communication apparatus may be a second terminal device or a module (eg, a chip) in the second terminal device.
  • the communication device may include a processor, a memory, an input interface for receiving information from other communication devices other than the communication device, and an output interface for sending information outside the communication device.
  • the other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor causes the processor to execute the communication method disclosed in the sixth aspect or any embodiment of the sixth aspect.
  • a thirty-first aspect discloses a communication apparatus, where the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the communication device may include a processor, a memory, an input interface for receiving information from other communication devices other than the communication device, and an output interface for sending information outside the communication device.
  • the other communication device outputs information, and when the processor executes the computer program stored in the memory, the processor causes the processor to execute the communication method disclosed in the seventh aspect or any embodiment of the seventh aspect.
  • a thirty-second aspect discloses a communication system including the communication device of the twenty-fifth aspect and the communication device of the twenty-sixth aspect.
  • a thirty-third aspect discloses a communication system including the communication device of the twenty-eighth aspect and the communication device of the twenty-ninth aspect.
  • a thirty-fourth aspect discloses a communication system including the communication device of the thirty-eighth aspect and the communication device of the thirty-first aspect.
  • a thirty-fifth aspect discloses a computer-readable storage medium, where computer programs or computer instructions are stored thereon, and when the computer program or computer instructions are executed, the communication methods disclosed in the above aspects are implemented.
  • a thirty-sixth aspect discloses a chip including a processor for executing a program stored in a memory, and when the program is executed, the chip executes the above method.
  • the memory is located off-chip.
  • FIG. 1 is a schematic diagram of a network architecture of a 5G NR Uu port disclosed in an embodiment of the present application
  • FIG. 2 is a schematic diagram of a DRX cycle disclosed in an embodiment of the present application.
  • FIG. 3 is a schematic diagram of communication between a terminal device and a terminal device disclosed in an embodiment of the present application;
  • FIG. 4 is a schematic diagram of reporting a CSI report within the upper limit of the CSI report delay when a terminal device in a SL disclosed in the present application is in DRX;
  • FIG. 5 is a schematic diagram of a network architecture disclosed in an embodiment of the present application.
  • FIG. 6 is a network architecture diagram of a V2X disclosed in an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a communication method disclosed in an embodiment of the present application.
  • FIG. 8 is a schematic diagram of activation of a first timer disclosed in an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another first timer activation disclosed in an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a first timer and a second timer disclosed in an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a third timer and a fourth timer disclosed in an embodiment of the present application.
  • FIG. 13 is a schematic diagram of an intersection between an upper limit of CSI reporting delay and an activation time of DRX disclosed by an embodiment of the present application;
  • FIG. 14 is a schematic diagram showing that there is no intersection between an upper limit of CSI reporting delay and an activation time of DRX disclosed by an embodiment of the present application;
  • FIG. 15 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • 16 is a schematic diagram of an upper limit of CSI reporting delay, the sleep time of the first terminal device DRX, and the calculation time of CSI disclosed in an embodiment of the present application;
  • FIG. 17 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • FIG. 18 is a schematic diagram of a CSI reporting delay upper limit and a CSI calculation time disclosed in an embodiment of the present application;
  • FIG. 19 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • FIG. 20 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • FIG. 21 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • 22 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • FIG. 23 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • FIG. 24 is a schematic structural diagram of a communication device disclosed in an embodiment of the present application.
  • FIG. 25 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 26 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 27 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 28 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 29 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 30 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 31 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 32 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 33 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 34 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 35 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 36 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • FIG. 37 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • 38 is a schematic diagram of a sensing window in the dormant period of DRX disclosed by an embodiment of the present application.
  • 39 is a schematic diagram of a sensing window disclosed in an embodiment of the present application in the activation period of DRX;
  • FIG. 40 is a schematic diagram of an overlap of a sensing window and an activation period of DRX disclosed in an embodiment of the present application;
  • FIG. 41 is a schematic diagram of another type of sensing window disclosed in an embodiment of the present application overlapping with the activation period of DRX.
  • the embodiments of the present application disclose a communication method, an apparatus, and a computer-readable storage medium, which are used to ensure the reliability of CSI report transmission. Each of them will be described in detail below.
  • FIG. 1 is a schematic diagram of a network architecture of a 5G new wireless (radio new, NR) Uu interface disclosed in an embodiment of the present application.
  • the network architecture may include an access network device 101 and a terminal device 102 .
  • the communication between the access network device 101 and the terminal device 102 includes downlink communication and uplink communication. Uplink communication is communication performed by uplink, and downlink communication is communication performed by downlink.
  • the access network device 101 sends downlink control signaling to the terminal device 102 through the PDCCH, and sends downlink data and paging to the terminal device 102 through a physical downlink shared channel (PDSCH).
  • the terminal device 102 receives downlink control signaling from the network device 101 through the PDCCH, and receives downlink data and paging from the network device 101 through the PDSCH.
  • the downlink control signaling may include downlink control information (downlink control information, DCI).
  • DCI downlink control information
  • the DCI may include parameters required for demodulation and decoding of the corresponding PDSCH.
  • FIG. 2 is a schematic diagram of a DRX cycle (cycle) disclosed in an embodiment of the present application.
  • the DRX cycle may include an active period and a dormant period.
  • the length of the activation period may be referred to as the activation time, and may also be referred to as the on duration time.
  • the length of the sleep period may be referred to as the sleep time.
  • the access network device can configure the DRX function for the terminal device, and the terminal device can monitor the PDCCH according to the DRX function.
  • the terminal device is in the radio resource control (RRC) connection state, if the DRX function is configured, the terminal device can perform discontinuous monitoring of all activated serving cells according to DRX rules; if the DRX function is not configured , the terminal device monitors the PDCCH according to the rules for monitoring the PDCCH.
  • RRC radio resource control
  • the access network device controls the DRX of the terminal device by configuring the following parameters:
  • the DRX duration (drx-onDurationTimer) is a period of time starting in one DRX cycle, that is, the activation time corresponding to the activation period in FIG. 2 .
  • the DRX duration may be a multiple of 1/32ms (subMilliSeconds).
  • the DRX duration may also be ms (milliSecond). For example, ms1 means 1ms, ms2 means 2ms, and so on.
  • the DRX slot offset (drx-SlotOffset) is the delay before drx-onDurationTimer is enabled.
  • the value of the DRX slot offset is in units of 1/32ms, 0 means 0ms, 1 means 1/32ms, 2 means 2/32ms, and so on.
  • the DRX inactivity time (drx-InactivityTimer) is the duration of monitoring the PDCCH after a new uplink (uplink, UL) or downlink (downlink, DL) is detected.
  • the DRX inactive time is an integer multiple of 1ms.
  • ms0 means 0ms
  • ms1 means 1ms
  • ms2 means 2ms, and so on.
  • DRX Retransmission DL is the maximum duration for each DL hybrid automatic repeat request (HARQ) process until a DL retransmission is received.
  • the value of the DRX retransmission DL is the number of time slots of the bandwidth part (BWP) of the received transport block (transport block, TB). Among them, sl0 corresponds to 0 time slot, sl1 corresponds to 1 time slot, and so on.
  • DRX Retransmission UL (drx-RetransmissionUL) is the maximum duration for each UL HARQ process until a UL retransmission is received.
  • the value of the DRX retransmission UL is the number of time slots of the BWP in which the TB is transmitted. Among them, sl0 corresponds to 0 time slot, sl1 corresponds to 1 time slot, and so on.
  • the DRX long cycle start time slot (drx-LongCycleStartOffset) represents the long DRX cycle (long DRX cycle) and the DRX start time slot (drx-StartOffset).
  • the DRX start slot is the start subframe of the DRX cycle.
  • the long DRX cycle is in ms, and the DRX start time slot is an integer multiple of 1ms.
  • the value of the DRX short cycle (drx-ShortCycle) is ms level. ms1 means 1ms, ms2 means 2ms, and so on.
  • the value of DRX long period should be a multiple of DRX short period. DRX short cycle is optional.
  • the DRX short cycle time (drx-ShortCycleTimer) is the duration for which the terminal device follows the DRX short cycle.
  • the value of the DRX short cycle time is a multiple of the DRX short cycle.
  • the DRX short cycle time value of 1 corresponds to drx-ShortCycle
  • the DRX short cycle time value of 2 corresponds to 2*drx-ShortCycle, and so on.
  • DRX short cycle time is optional.
  • the DRX HARQ round trip time (RTT) time DL (drx-HARQ-RTT-TimerDL) is the minimum duration before the DL scheduling that the terminal device expects a HARQ retransmission for each DL HAEQ process.
  • the DRX HARQRTT time DL is valued by the number of symbols in the BWP where the TB is received.
  • the DRX HARQ RTT Time UL (drx-HARQ-RTT-TimerUL) is the minimum duration before scheduling that the terminal device expects a UL HARQ retransmission for each UL HAEQ process. Takes the value by the number of symbols of the BWP in which the TB is transmitted.
  • the activation time may include drx-onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimerDL or drx-RetransmissionTimerUL.
  • the terminal device After the terminal device is configured with the DRX function, if a media access control (MAC) protocol data unit (PDU) is received in a configured downlink scheduling, the terminal device is carrying DL HARQ feedback.
  • the first symbol after the end of the corresponding transmission starts the drx-HARQ-RTT-TimerDL of the corresponding HARQ process and stops the drx-RetransmissionTimerDL of the corresponding HARQ process.
  • a MAC PDU is sent in a configured uplink schedule, the terminal device starts the corresponding HARQ process in the first symbol after the first repetition of the corresponding physical uplink share channel (PUSCH) transmission ends.
  • PUSCH physical uplink share channel
  • the terminal device stops the drx-RetransmissionTimerUL of the corresponding HARQ process. If a drx-HARQ-RTT-TimerDL fails and the data of the corresponding HARQ process is not successfully decoded, the terminal device starts the drx-RetransmissionTimerDL of the corresponding HARQ process at the first symbol after the failure of the drx-HARQ-RTT-TimerDL. If a drx-HARQ-RTT-TimerUL fails, the terminal device starts the drx-RetransmissionTimerUL of the corresponding HARQ process in the first symbol after the drx-HARQ-RTT-TimerUL fails.
  • the terminal device stops drx-onDurationTimer, and stops drx-InactivityTimer.
  • the terminal device stops drx-onDurationTimer, and stops drx-InactivityTimer.
  • the terminal device will be the first symbol after the DRX command MAC CE is received or the first symbol after the drx-InactivityTimer has expired. Symbol starts or restarts the drx-ShortCycleTimer, using the short DRX cycle, otherwise using the long DRX cycle.
  • the terminal device uses the long DRX cycle. If a long DRX command MAC CE is received, the terminal device stops the drx-ShortCycleTimer and uses the long DRX cycle.
  • the terminal device starts drx-onDurationTimer after the start of drx-SlotOffset of a subframe. If the terminal device is in the active period of DRX, the terminal device monitors the PDCCH.
  • the terminal device If the terminal device is in the active period of DRX, and the PDDCH indicates a DL transmission, the terminal device starts the drx-HARQ-RTT-TimerDL of the corresponding HARQ process in the first symbol after the end of the corresponding transmission carrying the DL HARQ feedback, and stops the corresponding HARQ process.
  • drx-RetransmissionTimerDL for the HARQ process If the terminal device is in the active period of DRX and the PDCCH indicates a UL transmission, the terminal device starts the drx-HARQ-RTT-TimerUL of the corresponding HARQ process in the first symbol after the first repetition of the corresponding PUSCH transmission ends, and stops the corresponding HARQ process.
  • the terminal device If the terminal device is in the active period of DRX and the PDCCH indicates a new transmission (DL or UL), the terminal device starts or restarts the drx-InactivityTimer in the first symbol after PDCCH reception.
  • the access network device can activate/deactivate DRX in the terminal device through parameter configuration of the RRC layer.
  • FIG. 3 is a schematic diagram of communication between a terminal device and a terminal device disclosed in an embodiment of the present application.
  • communication between terminal devices can be performed through SL.
  • Communication between terminal devices is carried out through PSSCH and PSCCH.
  • the PSCCH can carry control information such as the first-level SCI
  • the PSSCH can carry the second-level SCI, reference signals, data, and the like.
  • Mode 1 The access network device schedules the SL transmission resources to be used by the terminal device, that is, when the terminal device needs to send data, the terminal device needs to request resources from the access network device, and the access network device responds to the request of the terminal device. Allocate resources to it.
  • Mode 2 The terminal device determines the SL transmission resource in the SL resource pool configured by the network device or the pre-configured SL resource pool, that is, the terminal device can determine the SL transmission resource by sensing, that is, the terminal device can decode other terminals by decoding the SL transmission resources.
  • the SCI of the device or the SL measurement is performed to obtain information on the resource occupation of other terminal devices, and the SL transmission resources are determined based on the resources in the resource pool, the resources occupied by other terminal devices, and the SL measurement result.
  • the SL measurement is based on the value of the reference signal receiving power (RSRP) of the corresponding SL demodulation reference signal (DMRS) when decoding the SCI.
  • RSRP reference signal receiving power
  • DMRS SL demodulation reference signal
  • a resource pool is a collection of time-frequency resources.
  • the terminal device works in a resource pool, that is, in the mode 2, the terminal device can select a resource to send data and/or receive data in the resource pool in a perceptual manner.
  • FIG. 4 is a schematic diagram of reporting a CSI report within the upper limit of the CSI reporting delay when a terminal device in an SL disclosed in the present application is in DRX.
  • the terminal device receives the information used to trigger CSI reporting at time T1. It can be seen that a part of the CSI reporting delay upper limit is in the active period of DRX, and the other part of the CSI reporting delay upper limit is in the dormant period of DRX.
  • the first terminal device cannot determine the resource used for reporting CSI in a perceptual manner during the dormant period of DRX. It can be seen that after DRX is introduced in SL, the terminal device cannot use the existing CSI report reporting rules for reporting.
  • FIG. 5 is a schematic diagram of a network architecture disclosed in an embodiment of the present application.
  • the network architecture may include terminal device 1 and terminal device 2 .
  • the terminal device 1 and the terminal device 2 can communicate through SL.
  • the terminal device 1 and/or the terminal device 2 can act as a transmitter to send information, and can also act as a receiver to receive information.
  • Terminal device 1 and/or terminal device 2 may be in DRX.
  • V2X is a network architecture diagram of a vehicle to everything (V2X) disclosed in an embodiment of the present application.
  • V2X can include vehicle-to-vehicle (V2V) communication, vehicle-to-pedestrian (V2P) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-infrastructure (V2I) communication, Communication with the vehicle to network (V2N).
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-pedestrian
  • V2I vehicle-to-infrastructure
  • V2I vehicle-to-infrastructure
  • V2N Communication with the vehicle to network
  • terminal device 1 and the terminal device 2 may be the same device or different devices.
  • FIG. 6 is only an exemplary illustration of the network device shown in FIG. 5 , and does not constitute a limitation thereto.
  • FIG. 6 is only an exemplary illustration, and does not constitute a limitation.
  • Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • the terminal device can be a handheld terminal, a notebook computer, a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, a tablet computer , wireless modem (modem), handheld device (handheld), laptop computer (laptop computer), cordless phone (cordless phone) or wireless local loop (wireless local loop, WLL) station, machine type communication (machine type communication, MTC) terminals, wearable devices (such as smart watches, smart bracelets, pedometers, etc.), in-vehicle devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (virtual reality, VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control (industrial control), smart home equipment (for example, refrigerators, TVs, air conditioners,
  • industrial control for example, refrigerators, TVs, air conditioners
  • FIG. 7 is a schematic flowchart of a communication method disclosed in an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the second terminal device sends first indication information to the first terminal device.
  • the first terminal device receives the first indication information from the second terminal device.
  • the second terminal device may send the first indication information to the first terminal device.
  • the first indication information is used to trigger CSI reporting, and it can be understood that the first indication information has a function of triggering the first terminal device to report the CSI report to the second terminal device.
  • the first indication information may be carried on the first PSSCH, and it can be understood that the first indication information may be transmitted through the physical sideline shared channel.
  • the first indication information may include a second-level SCI, and the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the value of the CSI request field may be 1 or 0, which is not limited here.
  • the first PSSCH may include a second-level SCI
  • the second-level SCI may include a CSI request field
  • the first indication information may be a CSI request field.
  • the first indication information may be an indicator in the first PSSCH.
  • the first indication information may be a reference signal in the first PSSCH, and the reference signal may be CSI-RS or the like.
  • the first indication information may be one bit in the first PSSCH. For example, when this bit is 0 or 1, it is used to trigger the reporting of CSI. It should be understood that the above limitation on the first indication information is only an exemplary description, and does not constitute a limitation on the first indication information, and the first indication information can be any form of information, fields, bits, signaling, news etc.
  • the first PSSCH may further include CSI-RS.
  • the first indication information may also be carried on the PSCCH.
  • the second terminal device may also send the PSSCH carrying the CSI-RS to the first terminal device.
  • the second terminal device activates the first timer.
  • the second terminal device monitors the PSCCH or the SCI within the activation time of the first timer.
  • the first timer When the second terminal device is in DRX, after the second terminal device sends the first indication information to the first terminal device, the first timer may be activated.
  • the first timer may be a fixed timer, and the time of the timer may be fixed. Therefore, activating the first timer may be understood as starting the first timer, or may be understood as starting the first timer to count.
  • the first timer can be a fixed timer, but the time of this timer can be set as required. Therefore, when the time of the first timer is not the required time, activating the first timer can be understood as setting the first timer the activation time of the device and start the first timer.
  • the first timer may also be a variable timer.
  • activating the first timer may be understood as determining the first timer and starting the first timer.
  • the activation time of the first timer may be set first, and then the first timer is started.
  • the first timer needs to be created first.
  • the time when the first timer is started may be 0, or may be the activation time.
  • the timing of the first timer can be understood as the time of the timer increases continuously with the change of time until the timer expires.
  • the timing of the first timer may be understood as the time of the timer decreases continuously with the change of time until the timer expires. It should be understood that the above description of the first timer is only exemplary, and does not constitute a limitation on the first timer.
  • the activation time of the timer can be understood as the longest time that the timer can count and work. For example, for a 5s timer, 5s is the activation time of the timer. When the timer starts from 0 and the timer reaches 5s, the timer will stop timing, that is, the timer will stop. To make the timer count again, you need to restart the timer, or enable the timer.
  • the terminal device When the terminal device is in DRX, it can be understood that the terminal device is configured with the DRX function, it can also be understood that the terminal device is enabled with DRX, and it can also be understood that the terminal device has the DRX function, which is not limited here.
  • the second terminal device may activate the first timer at the Mth symbol after the end symbol of the first indication information, which can be understood as activating the first timer at the Mth symbol after the first indication information is sent A timer can also be understood as activating the first timer at the Mth symbol after the last symbol of the first indication information is sent. M is an integer greater than or equal to 1. It can be seen that the second terminal device can activate the first timer at the first symbol after the end symbol of the first indication information, or activate the first timer at the second symbol after the end symbol of the first indication information, and further The first timer may be activated at the third symbol after the end symbol of the first indication information.
  • the second terminal device can activate the first timer at the first symbol after the end symbol of the first indication information. Since the first indication information is used to trigger CSI reporting, the second terminal device is sending the The first timer is activated after the indication information of the CSI report is triggered, so as to receive the CSI report. The probability of receiving the CSI report is improved, the normal operation of the link adaptation is ensured, and the system performance and the system communication efficiency are improved.
  • FIG. 8 is a schematic diagram of activating a first timer disclosed in an embodiment of the present application. As shown in FIG. 8 , the time when the first timer is activated is T1, the time when the first timer is invalid is T2, and the second terminal device keeps monitoring during the working time of the first timer.
  • the second terminal device may also activate the first timer at the Mth time slot after the time slot where the first indication information is located, which may be understood as activating the first timer at the Mth time slot after the first indication information, or It can be understood that the first timer is activated in the Mth time slot after the first indication information is sent, and it can also be understood that the first timer is activated in the Mth time slot after the last symbol of the first indication information is sent, It can also be understood that the first timer is activated in the Mth time slot after the end symbol of the first indication information. When M is equal to 1, the second terminal device can activate the first timer in the first time slot after the time slot where the first indication information is located.
  • the second terminal device Since the first indication information is used to trigger CSI reporting, the second terminal device is in The first time slot after sending the first indication information activates the first timer, so as to receive the CSI report, from the end symbol of the first indication information to the start of the first time slot after the time slot where the first indication information is located Within the time interval of the symbol, the second terminal device can process the inactive time.
  • the system performance and system communication efficiency are improved, which is more conducive to the power saving of the second terminal device, avoids unnecessary power consumption, and the terminal device is simpler to implement.
  • the second terminal device may also activate the first timer at the Mth symbol after the end symbol of the first PSSCH, which can be understood as the first timer after the first PSSCH is sent.
  • M symbols activate the first timer, which can also be understood as activating the first timer at the Mth symbol after the last symbol of the first PSSCH is sent.
  • M is equal to 1
  • the second terminal device can activate the first timer at the first symbol after the end symbol of the first PSSCH. Since the PSSCH carries the indication information for triggering CSI reporting, the second terminal device is sending The first timer is activated after the indication information for triggering the CSI report, so as to receive the CSI report.
  • the probability of receiving the CSI report is improved, the normal operation of the link adaptation is ensured, and the system performance and the system communication efficiency are improved.
  • the second terminal device activates the first timer at the Mth symbol after the end symbol of the first PSSCH.
  • the second terminal device may also activate the first timer at the Mth time slot after the time slot where the first PSSCH is located, which can be understood as the first timer after the first PSSCH.
  • M timeslots activate the first timer, which can also be understood as activating the first timer in the Mth timeslot after the first PSSCH is sent, and can also be understood as the Mth time slot after the last symbol of the first PSSCH is sent.
  • the time slot activates the first timer, which can also be understood as activating the first timer at the Mth time slot after the end symbol of the first indication information.
  • the second terminal device activates the first timer in the Mth time slot after the time slot where the first PSSCH is located.
  • the second terminal device may also activate the first timer at the Mth symbol after the end symbol of the CSI-RS, which can be understood as the Mth symbol after the CSI-RS is sent Activating the first timer can also be understood as activating the first timer at the Mth symbol after the last symbol of the CSI-RS is sent.
  • the second terminal device can activate the first timer at the 1st symbol after the end symbol of the CSI-RS, since the CSI-RS can be used to generate a CSI report, and the transmission of the CSI-RS is accompanied by The sending of the indication information for triggering the CSI report is triggered, and the second terminal device activates the first timer after sending the indication information for triggering the CSI report, so as to receive the CSI report.
  • the probability of receiving the CSI report is improved, the normal operation of the link adaptation is ensured, and the system performance and the system communication efficiency are improved.
  • the second terminal device activates the first timer at the Mth symbol after the end symbol of the CSI-RS
  • the description of the device will not be repeated here.
  • the second terminal device may also activate the first timer at the Mth time slot after the time slot where the CSI-RS is located, which can be understood as the Mth time after the CSI-RS Slot activation of the first timer can also be understood as the activation of the first timer in the Mth time slot after the CSI-RS is sent, and it can also be understood as activation in the Mth time slot after the last symbol of the CSI-RS is sent.
  • the first timer can also be understood as activating the first timer in the Mth time slot after the end symbol of the CSI-RS is sent.
  • the second terminal device activates the first timer in the Mth time slot after the time slot where the CSI-RS is located (ie, the end time slot).
  • the end time slot you can refer to the above description of the second terminal device after the time slot where the first indication information is located.
  • the description of activating the first timer in the Mth time slot of will not be repeated here.
  • the second terminal device may monitor the PSCCH or the SCI within the activation time of the first timer, and the purpose of monitoring the PSCCH or the SCI is to receive a CSI report from the first terminal device.
  • the second terminal device may also receive other information from the first terminal device, and may also receive information from other terminal devices, which is not limited herein. It can be seen that the second terminal device monitors the PSCCH or SCI within the activation time of the first timer so as not to miss the CSI report returned by the first terminal device, and can perform link adaptation, thereby improving link quality and transmission reliability .
  • Monitoring can be understood as receiving, also can be understood as detection, can also be understood as blind detection.
  • Monitoring the SCI can be understood as monitoring the first-level SCI, it can also be understood as monitoring the first-level SCI and the second-level SCI, and it can also be understood as monitoring the first-level SCI and receiving the corresponding second-level SCI.
  • the upper limit of the CSI report delay is the maximum time limit for ensuring the timeliness of the CSI report. After exceeding this time limit, it indicates that the information delay is relatively large, the CSI report will lose the timeliness, and the first terminal device may not return CSI. Therefore, in order to reduce the listening time of the second terminal device so as to reduce the power consumption of the second terminal device, the activation time of the first timer cannot be too long.
  • the activation time of the first timer can be determined according to the upper limit of the CSI report delay, which can be understood as the determination of the activation time of the first timer needs to consider the upper limit of the CSI report delay.
  • the activation time of the first timer may be less than or equal to the upper limit of the CSI reporting delay.
  • the smaller the difference between the activation time of the first timer and the upper limit of the CSI report delay the better, but the smaller the difference, the greater the power consumption.
  • the second terminal device since the first terminal device needs to generate the CSI report after receiving the first indication information that triggers the CSI report, and it takes a period of time to generate the CSI report, the second terminal device will not receive information from the first terminal during this time. CSI report for the device. Therefore, in order not to miss the CSI report returned by the first terminal device, the activation time of the first timer cannot be too short. It can be seen that the determination of the activation time of the first timer may also consider the calculation time of the CSI. For example, the activation time of the first timer may be greater than or equal to the calculation time of the CSI.
  • the activation time of the first timer is preferably greater than or equal to the calculation time of the CSI, and less than or equal to the upper limit of the CSI reporting delay.
  • the upper limit of CSI reporting delay may be configured through PC5RRC.
  • the calculation time of the CSI may be reported by the first terminal device.
  • the calculation time of the CSI may be determined by the first terminal device according to the capability of the first terminal device. For example, there may be multiple CSI calculation times, and the first terminal device may select a corresponding CSI calculation time from the multiple CSI calculation times according to its own capability information.
  • the foregoing manner of determining the calculation time of the CSI is only an exemplary description, and does not constitute a limitation, and may also be determined in other manners, which are not limited herein.
  • the second terminal device may activate the first timer at the Nth symbol after the end symbol of the first indication information, which can be understood as the Nth symbol after the first indication information is sent Activating the first timer can also be understood as activating the first timer at the Nth symbol after the last symbol of the first indication information is sent.
  • N is an integer greater than the computation time of CSI.
  • the unit of the CSI calculation time may be a symbol, or the unit of absolute time milliseconds, seconds, etc., or it may be determined by other means of measuring time, which is not limited herein.
  • the second terminal device can activate the first timer at the first symbol after the end symbol of the first indication information after the calculation time of CSI, or after the end symbol of the first indication information and after the calculation time of CSI
  • the first timer is activated at the second symbol of the first indicator, and the first timer may also be activated at the third symbol after the CSI calculation time has elapsed after the end symbol of the first indication information.
  • the calculation time of the CSI is 4 symbols
  • the first timer is activated at the second symbol after the end symbol of the first indication information and after the calculation time of the CSI, which can be understood as the time after the end symbol of the first indication information.
  • the sixth symbol activates the first timer.
  • the first terminal device may have generated a CSI report after the CSI-th calculation time symbol after the first indication information end symbol
  • the first terminal device may have generated the CSI report at the first indication information end symbol after the CSI-th calculation time
  • the symbol can return a CSI report to the second terminal device. Therefore, in order not to miss the CSI report returned by the first terminal device, the second terminal device passes the CSI calculation time of 1 after the end symbol of the first indication information. Activating the first timer with a symbol works best. Since the first terminal device needs time to generate the CSI report after receiving the indication information for triggering the CSI report, the CSI calculation time is the shortest time for generating the CSI report after receiving the signaling information for triggering the CSI report.
  • FIG. 9 is a schematic diagram of another first timer activation disclosed in an embodiment of the present application. As shown in FIG. 9 , T3 is the time when the second terminal device triggers CSI reporting, T4 is the time when the first timer is activated, and T5 is the time when the first timer expires. It can be seen that the first timer is activated after the calculation time of CSI after CSI reporting is triggered.
  • the second terminal device may also activate the first timer in the Lth time slot after the first symbol.
  • L is an integer greater than or equal to 1.
  • the first symbol may be the Kth symbol after the last symbol of the first indication information is sent, which may be understood as the Kth symbol after the end symbol of the first indication information.
  • K is the number of symbols used to calculate CSI, that is, the number of symbols used to calculate CSI. For example, assuming that L is 1, when the symbol used for calculating the CSI is the number of symbols included in a time slot, the first timer is activated in the Lth time slot after the time slot where the first symbol is located, which can be understood as the first indication information
  • the second time slot after the end symbol of activates the first timer.
  • the first terminal device Since the first terminal device has generated the CSI report in K symbols after the first indication information end symbol, the first terminal device can return the CSI report to the second terminal device in the first time slot after the first symbol. Therefore, In order not to miss the CSI report returned by the first terminal device, the second terminal device can activate the first timer in the first time slot after the first symbol, which can reduce the listening time of the second terminal device, thereby reducing the time of the second terminal device. The power consumption of the device.
  • the second terminal device may also activate the first timer at the Nth symbol after the end symbol of the first PSSCH, which can be understood as the first timer after the first PSSCH is sent.
  • N symbols activate the first timer, which can also be understood as activating the first timer at the Nth symbol after the last symbol of the first PSSCH is sent.
  • the first symbol When the first indication information is carried on the first PSSCH, the first symbol may be the K th symbol after the last symbol of the first PSSCH is sent, that is, the K th symbol after the end symbol of the first PSSCH.
  • the first symbol is the Kth symbol after the last symbol of the first indication information is sent, and details are not repeated here.
  • the second terminal device may also activate the first timer at the Nth symbol after the end symbol of the CSI-RS, which can be understood as the Nth symbol after the CSI-RS is sent Activating the first timer can also be understood as activating the first timer at the Nth symbol after the last symbol of the CSI-RS is sent.
  • the second terminal device activates the first timer at the Nth symbol after the end symbol of the CSI-RS, you can refer to the above description that the second terminal device activates the first timer at the Nth symbol after the end symbol of the first indication information The description of the device will not be repeated here.
  • the first symbol may be the K th symbol after the last symbol of the CSI-RS is transmitted, that is, the K th symbol after the CSI-RS end symbol.
  • the first symbol is the Kth symbol after the last symbol of the first indication information is sent, and details are not repeated here.
  • the first terminal device Since the first terminal device needs to generate the CSI report after receiving the first indication information triggering the CSI report, and it takes a period of time to generate the CSI report, the first terminal device will not send the CSI report during this time. Correspondingly, the second terminal device will not receive the CSI report either.
  • the first timer since the first timer may be activated at the Nth symbol after the first indication information, the first PSSCH or the CSI-RS end symbol, and N is an integer greater than the calculation time of CSI, the calculation time of CSI is considered .
  • the first timer may also be activated in the Lth time slot after the first symbol, and the first symbol takes into account the calculation time of CSI.
  • the activation time of the first timer may be determined according to the upper limit of CSI reporting delay and the calculation time of CSI.
  • the activation time of the first timer may be less than or equal to the difference between the upper limit of CSI reporting delay and the calculation time of CSI value, so that it can be ensured that the monitoring is performed within the upper limit of the CSI reporting delay, unnecessary monitoring can be reduced, and the power consumption of the second terminal device can be reduced.
  • the second terminal device when the second terminal device activates the first timer at the Nth symbol after the first indication information, the end symbol of the first PSSCH or CSI-RS, or at the Lth time slot after the first symbol During the first timer, there is a period of time between when the second terminal device sends the first indication information and activates the first timer. During this period, if the second terminal device is in the active period of DRX, the second terminal device also needs to monitor the PSCCH or the SCI.
  • the second terminal device The second timer is activated for every symbol, or the second timer may be activated in the Lth time slot after the first symbol, and the PSCCH or the SCI is not monitored during the activation time of the second timer.
  • the activation time of the second timer may be greater than or equal to the calculation time of the CSI.
  • the time when the second timer expires may be the time at which the first timer is activated, or may be earlier than the time at which the first timer is activated.
  • the second timer expires when the second timer expires. Please refer to FIG. 10. FIG.
  • T6 is the time when the second timer is activated
  • T7 is the time when the first timer is activated and the time when the second timer is invalid
  • T8 is the time when the first timer is invalid.
  • the time when the second timer expires is the time when the first timer is activated.
  • the activation time of the above-mentioned first timer may be pre-configured, may also be configured by a network device, or may be determined in other ways, which are not limited herein.
  • the first terminal device activates a third timer.
  • the first terminal device sends a CSI report to the second terminal device within the activation time of the third timer.
  • the first terminal device may activate a third timer, and send a CSI report to the second terminal device within the activation time of the third timer.
  • the second terminal device receives the CSI report from the first terminal device.
  • the first terminal device sends a CSI report to the second terminal device within the activation time of the third timer, which can be understood as the first terminal device monitoring the PSCCH or SCI within the activation time of the third timer, so that the first terminal device can detect
  • the transmission resource that is, the transmission resource of the second PSSCH
  • the first terminal device can determine the transmission resource through sensing; when the activation time of the third timer is less than the sensing window, the first terminal device can determine the transmission resource through partial sensing transfer resources.
  • Monitoring the SCI can be understood as monitoring the first-level SCI, it can also be understood as monitoring the first-level SCI and the second-level SCI, and it can also be understood as monitoring the first-level SCI and receiving the corresponding second-level SCI.
  • the first terminal device may immediately trigger CSI reporting according to the first indication information.
  • the first terminal device may activate the third timer at the Mth symbol after the end symbol of the first indication information, which can be understood as activating the third timer at the Mth symbol after the first indication information is received, It can also be understood that the third timer is activated at the Mth symbol after the last symbol of the first indication information is received.
  • the description that the first terminal device activates the third timer at the Mth symbol after the end symbol of the first indication information can refer to the above description that the second terminal device activates the first timer at the Mth symbol after the end symbol of the first indication information. The description of the timer will not be repeated here.
  • the first terminal device may also activate the third timer in the Mth time slot after the time slot where the first indication information is located, which can be understood as activating the third timer in the Mth time slot after the first indication information, It can also be understood that the third timer is activated in the Mth time slot after the first indication information is received, and it can also be understood that the third timer is activated in the Mth time slot after the last symbol of the first indication information is received, It can also be understood that the third timer is activated in the Mth time slot after receiving the end symbol of the first indication information.
  • the first terminal device activates the third timer at the Mth time slot after the time slot where the first indication information is located
  • the description of the slot activation first timer will not be repeated here.
  • the first terminal device may also trigger CSI reporting according to the first indication information after receiving the first PSSCH carrying the first indication information.
  • the first terminal device can also activate the third timer at the Mth symbol after the end symbol of the first PSSCH, which can be understood as activating the third timer at the Mth symbol after the first PSSCH is received, and also It can be understood that the third timer is activated at the Mth symbol after the last symbol of the first PSSCH is received.
  • the first terminal device activates the third timer at the Mth symbol after the end symbol of the first PSSCH
  • the description of the device will not be repeated here.
  • the first terminal device may also activate the third timer at the Mth time slot after the time slot where the first PSSCH is located, which can be understood as activating the third timer at the Mth time slot after the first PSSCH, which can also be understood
  • the third timer is activated in the Mth time slot after receiving the last symbol of the first PSSCH, which can also be understood as The third timer is activated in the Mth time slot after receiving the end symbol of the first indication information.
  • the first terminal device activates the third timer in the Mth time slot after the time slot where the first PSSCH is located.
  • the first terminal device may receive the first indication information first, and then receive the CSI-RS.
  • the first terminal device may also trigger CSI reporting according to the first indication information after receiving the CSI-RS.
  • the first terminal device may also activate the third timer at the Mth symbol after the end symbol of the CSI-RS, which can be understood as activating the third timer at the Mth symbol after the CSI-RS is received, and also It can be understood that the third timer is activated at the Mth symbol after the last symbol of the CSI-RS is received.
  • the first terminal device activates the third timer at the Mth symbol after the end symbol of the CSI-RS
  • the first terminal device may also activate the third timer at the Mth time slot after the time slot where the CSI-RS is located, which can be understood as activating the third timer at the Mth time slot after the CSI-RS, which can also be understood
  • To activate the third timer in the Mth time slot after receiving the CSI-RS it can also be understood as activating the third timer in the Mth time slot after receiving the last symbol of the CSI-RS, which can also be understood as The third timer is activated in the Mth slot after the end symbol of the CSI-RS is received.
  • the first terminal device activates the third timer in the Mth time slot after the time slot where the CSI-RS is located, you can refer to the Mth time slot after the time slot where the first indication information is located by the second terminal device above. The description of activating the first timer will not be repeated here.
  • the activation time of the third timer may be determined according to the upper limit of the CSI reporting delay.
  • the activation time of the third timer may be less than or equal to the upper limit of the CSI reporting delay.
  • the description of the activation time of the third timer reference may be made to the description of the activation time of the first timer in an implementation manner below in step 703, and details are not repeated here. It can be understood that the above example of determining the activation time of the third timer according to the upper limit of the CSI reporting delay is only an exemplary illustration, and does not constitute a limitation.
  • the first terminal device since the first terminal device needs to generate the CSI report after receiving the first indication information, and it takes a period of time to generate the CSI report, the first terminal device will not send the CSI report during this time. Therefore, when the first terminal device can generate a CSI report according to the first indication information after receiving the first indication information, the first terminal device can activate the third timer at the Nth symbol after the end symbol of the first indication information , it can be understood that the third timer is activated at the Nth symbol after the first indication information is received, and it can also be understood that the third timer is activated at the Nth symbol after the last symbol of the first indication information is received.
  • the first terminal device activates the third timer at the Nth symbol after the end symbol of the first indication information
  • the description of the timer will not be repeated here.
  • the first terminal device may also activate the third timer in the Lth time slot after the first symbol.
  • the first symbol may be the K th symbol after the last symbol of the first indication information is sent, that is, the K th symbol after the end symbol of the first indication information.
  • the first terminal device activates the third timer in the Lth time slot after the first symbol. You can refer to the description that the first terminal device activates the first timer in the Lth time slot after the first symbol. Add elaboration.
  • the first terminal device may generate a CSI report according to the first indication information after receiving the first PSSCH carrying the first indication information. Considering the time required for CSI report generation, that is, the calculation time of CSI.
  • the first terminal device may also activate the third timer at the Nth symbol after the end symbol of the first PSSCH, which can be understood as activating the third timer at the Nth symbol after the first PSSCH is received, which can also be understood as The third timer is activated at the Nth symbol after the reception of the last symbol of the first PSSCH.
  • the first terminal device activates the third timer at the Nth symbol after the end symbol of the first PSSCH
  • the description of the device will not be repeated here.
  • the first symbol may be the Kth symbol after the last symbol of the first PSSCH is sent, that is, the Kth symbol after the end symbol of the first PSSCH.
  • the first symbol is the Kth symbol after the last symbol of the first indication information is sent, and details are not repeated here.
  • the first terminal device receives the first indication information first, and then receives the CSI-RS.
  • the first terminal device may generate a CSI report according to the first indication information only after receiving the CSI-RS. Considering the time required for CSI report generation, that is, the calculation time of CSI.
  • the first terminal device may also activate the third timer at the Nth symbol after the end symbol of the CSI-RS, which can be understood as activating the third timer at the Nth symbol after the CSI-RS is received, which can also be understood as The third timer is activated at the Nth symbol after the last symbol of the CSI-RS is received.
  • the first terminal device activates the third timer at the Nth symbol after the end symbol of the CSI-RS
  • the first symbol may be the K th symbol after the last symbol of the CSI-RS is transmitted, that is, the K th symbol after the CSI-RS end symbol.
  • the first symbol is the Kth symbol after the last symbol of the first indication information is sent, and details are not repeated here.
  • the activation time of the third timer may be determined according to the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation time of the third timer may be less than or equal to the difference between the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the description of the activation time of the third timer reference may be made to the description of the activation time of the first timer under another implementation manner below in step 703, and details are not repeated here. It can be understood that the above example of determining the activation time of the third timer according to the upper limit of the CSI reporting delay and the calculation time of the CSI is only an exemplary illustration, and does not constitute a limitation.
  • the first terminal device when the first terminal device activates the third timer at the Nth symbol after the first indication information, the end symbol of the first PSSCH or CSI-RS, or at the Lth time slot after the first symbol During the third timer, there is a period of time between when the first terminal device receives the first indication information and activates the third timer. During this period, if the first terminal device is in the active period of DRX, the first terminal device also needs to monitor the PSCCH or the SCI.
  • the first terminal device may not monitor the control signaling during this period to reduce the power consumption of the first terminal device, and the first terminal device
  • the first symbol activates the fourth timer, or activates the fourth timer in the Lth time slot after the first symbol, and does not monitor the PSCCH or the SCI within the activation time of the fourth timer.
  • the activation time of the fourth timer may be greater than or equal to the calculation time of the CSI.
  • the time when the fourth timer expires may be the time when the third timer is activated, or may be earlier than the time when the third timer is activated. When the fourth timer times out, the fourth timer is invalid. Please refer to FIG. 11 .
  • FIG. 11 Please refer to FIG. 11 .
  • FIG. 11 is a schematic diagram of a third timer and a fourth timer disclosed in an embodiment of the present application. As shown in FIG. 11 , T9 is the time when the fourth timer is activated, T10 is the time when the third timer is activated and the time when the fourth timer is invalid, and T11 is the time when the third timer is invalid. The time when the fourth timer is invalid in FIG. 11 is the time when the third timer is activated.
  • the first terminal device determines that the third timer expires. It can be understood that when the CSI transmission is completed, regardless of whether the time interval between the current time and the time when the third timer is activated exceeds the activation time of the third timer, the third timer is invalid. Therefore, when the time interval between the time when the third timer expires and the time when the third timer is activated is smaller than the time when the third timer is activated, the first terminal device only needs to monitor that the third timer is invalid, It is not necessary to monitor until the third timer expires. Therefore, the first terminal device can end the monitoring in advance, which can reduce the monitoring time of the first terminal device, thereby reducing the power consumption of the first terminal device.
  • the activation time of the above-mentioned third timer may be pre-configured, may also be configured by a network device, or may be determined in other ways, which are not limited herein.
  • the first terminal device After receiving the first indication information, the first terminal device needs to generate a CSI report.
  • a CSI report When generating CSI reports, previously received or stored CSI-RSs may be used.
  • the first terminal device when receiving the CSI-RS while receiving the first indication information, the first terminal device may also generate a CSI report according to the CSI-RS received this time.
  • the second terminal device determines that the first timer expires. It can be understood that when the second terminal device receives the CSI report from the first terminal device, regardless of whether the time interval between the current time and the time at which the first timer is activated exceeds the activation time of the first timer, the first timer all fail. Therefore, when the time interval between the expiration time of the first timer and the time when the first timer is activated is smaller than the activation time of the first timer, the second terminal device only needs to monitor the expiration of the first timer. It is not necessary to monitor until the first timer expires.
  • the second terminal device can end the monitoring in advance, which can reduce the monitoring time of the second terminal device, thereby reducing the power consumption of the second terminal device.
  • the first timer expires, it is determined that the first timer is invalid, which can be understood as that when the first timer expires, the first timer is invalid regardless of whether the second terminal device receives the CSI report from the first terminal device.
  • the second terminal device may send the CSI reporting delay upper limit to the first terminal device.
  • the first terminal device may receive the upper limit of the CSI reporting delay from the second terminal device.
  • the upper limit of the CSI reporting delay may be greater than the sum of the sleep time of the first terminal device DRX and the calculation time of the CSI.
  • the detailed description may refer to the description corresponding to FIG. 15 .
  • steps 701 to 705 may refer to each other, and are not limited to corresponding steps.
  • FIG. 12 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the second terminal device sends second indication information to the first terminal device.
  • the first terminal device receives the second indication information from the second terminal device.
  • the second terminal device may send the second indication information to the first terminal device.
  • the second indication information is used to trigger CSI reporting, and it can be understood that the second indication information has the function of triggering the first terminal device to report the CSI report to the second terminal device.
  • the second indication information may be carried on the fourth PSSCH, and it can be understood that the second indication information may be transmitted through the physical sideline shared channel.
  • the second indication information may include a second-level SCI, and the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the value of the CSI request field may be 1 or 0, which is not limited here.
  • the fourth PSSCH may include a second-level SCI
  • the second-level SCI may include a CSI request field
  • the second indication information may be a CSI request field.
  • the second indication information may be an indicator in the fourth PSSCH.
  • the second indication information may be a reference signal in the fourth PSSCH, and the reference signal may be various reference signals such as CSI-RS.
  • the second indication information may be one bit in the fourth PSSCH. For example, when this bit is 0 or 1, it is used to trigger the reporting of CSI. It should be understood that the above limitation on the second indication information is only an exemplary description, and does not constitute a limitation on the second indication information, and the second indication information can be any form of information, fields, bits, signaling, news etc.
  • the fourth PSSCH may further include CSI-RS.
  • the second indication information may also be carried on the PSCCH.
  • the second terminal device may also send the PSSCH carrying the CSI-RS to the first terminal device.
  • the first terminal device When the first terminal device is in DRX, the first terminal device sends a third PSSCH to the second terminal device within the upper limit of the CSI reporting delay.
  • the first terminal device After the first terminal device receives the second indication information from the second terminal device, when the first terminal device is in DRX, in order to ensure the timeliness of the CSI report, the first terminal device may report to the second terminal within the upper limit of the CSI report delay.
  • the device sends the third PSSCH.
  • the third PSSCH may include CSI reports.
  • the first terminal device After receiving the second indication information, the first terminal device may first generate a CSI report according to the second indication information, and then may send the CSI report to the second terminal device through the third PSSCH.
  • the first terminal device may first determine whether there is an intersection between the upper limit of the CSI reporting delay and the activation time of the DRX. When it is determined that there is an intersection between the CSI reporting delay upper limit and the DRX activation time, the first terminal device may determine the third PSSCH within the intersection between the CSI reporting delay upper limit and the DRX activation time, that is, the third PSSCH The time domain resource belongs to the intersection between the upper limit of the CSI report delay and the activation time of DRX, and the first terminal device can send the CSI report to the second terminal device through the determined third PSSCH.
  • the first terminal device may send a CSI report to the second terminal device at the intersection between the CSI report delay upper limit and the activation time of DRX, because the second terminal device It is also in the active period of DRX, so the second terminal device can receive the CSI report from the first terminal device.
  • the reliability of the transmission of the CSI report can be guaranteed, and the second terminal device can perform link adaptation, which improves the reliability of the system transmission of the second terminal device.
  • the first terminal device may determine the resources of the third PSSCH in a perceptual or partial perceptual manner within the intersection between the upper limit of the CSI reporting delay and the activation time of the DRX, that is, the time domain resources of the third PSSCH belong to the CSI reporting delay.
  • the intersection between the time limit and the activation time of DRX the first terminal device may send a CSI report to the second terminal device through the determined third PSSCH.
  • the first terminal device When it is determined that there is no intersection between the upper limit of the CSI reporting delay and the activation time of DRX, since the first terminal device is in the time interval between the time when the CSI report is triggered and the time when the CSI report is sent, the first terminal device is always in the The dormancy period of the DRX, so that the first terminal device cannot determine the transmission resource of the third PSSCH in a perceptual or partial perceptual manner. Or the first terminal device determines the transmission resource of the third PSSCH through the historical perception result, which will lead to an increase in the probability of collision of the transmission resource and increase the interference to other terminal devices. Therefore, in order to ensure that the CSI report can be sent normally, the first terminal device may determine the resources of the third PSSCH by random selection.
  • the resources of the third PSSCH may be resources determined through sensing or partial sensing.
  • the resources of the third PSSCH may be resources determined by random selection.
  • the resources of the third PSSCH are resources determined through sensing or partial sensing.
  • the resources of the third PSSCH are resources determined by random selection.
  • the second ratio is the ratio of the activation time of DRX and the overlapping time of the sensing window to the sensing window.
  • the second ratio is the ratio of the activation time of DRX and the overlapping time of the sensing window to the sensing window.
  • the resources of the third PSSCH may be determined through resource selection in mode 1 resource. That is, a terminal device within the coverage of the network can obtain resources of the third PSSCH by requesting resources from the network device.
  • the seventh threshold and the fifth threshold may be the same or different, which are not limited herein.
  • the randomly selected resource pool and the perceived or partially perceived resource pool may be the same resource pool, or may be different resource pools.
  • the first terminal device is configured with two resource pools, and the resources in one resource pool are used by the terminal device in a perceptual or partial perceptual manner. The resources in the other resource pool are used by the terminal device through random selection.
  • the first terminal device is configured with a resource pool, and the resource pool supports a resource selection manner of perception, partial perception or random selection. That is, any resource that is perceived, partially perceived or randomly selected can be selected from this resource pool.
  • FIG. 13 is a schematic diagram of an intersection between a CSI reporting delay upper limit disclosed by an embodiment of the present application and the activation time of DRX.
  • FIG. 13 illustrates three cases where there is an intersection between the upper limit of CSI reporting delay and the activation time of DRX.
  • FIG. 13 is only an exemplary illustration of the intersection between the upper limit of CSI reporting delay and the activation time of DRX, and does not constitute a limitation, and may also be other methods, which are not limited here.
  • FIG. 14 is a schematic diagram showing that there is no intersection between a CSI reporting delay upper limit disclosed by an embodiment of the present application and the activation time of DRX.
  • FIG. 14 illustrates four cases where there is an intersection between the upper limit of CSI reporting delay and the activation time of DRX. It can be understood that FIG. 14 is only an exemplary illustration that there is no intersection between the upper limit of CSI reporting delay and the activation time of DRX, and does not constitute a limitation, and may also be other methods, which are not limited here.
  • the first terminal device After receiving the second indication information, the first terminal device needs to generate a CSI report.
  • the previously received or stored CSI-RS may be used, or other information may be used.
  • the first terminal device may also generate a CSI report according to the CSI-RS received this time.
  • FIG. 15 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the second terminal device sends a CSI report delay upper limit to the first terminal device.
  • the first terminal device receives the CSI report delay upper limit from the second terminal device.
  • FIG. 16 is a schematic diagram of an upper limit of CSI reporting delay, the sleep time of the DRX of the first terminal device, and the calculation time of CSI according to an embodiment of the present application.
  • the time interval between the time when the first terminal device is triggered to report CSI and the time when the first terminal device enters the sleep period is equal to the calculation time of CSI
  • the first terminal device generates a CSI report that is, the first terminal device generates a CSI report.
  • the terminal device prepares the CSI report, the first terminal device just enters the sleep period of DRX.
  • the first terminal device determines the transmission resource through perception or partial perception, the first terminal device cannot determine the transmission resource during the sleep period, so that the first terminal device cannot send a CSI report to the second terminal device during the sleep period.
  • the upper limit of the CSI reporting delay is smaller than the sleep time of the first terminal device DRX and the calculation time of CSI, when the upper limit of the CSI reporting delay is reached, the first terminal device is still in the sleep period, so that the first terminal device cannot respond to this trigger. Return CSI report.
  • the second terminal device can configure a CSI report delay upper limit for the first terminal device, and the CSI report delay upper limit can be greater than the sleep state of the first terminal device DRX The sum of the time and the computation time of the CSI.
  • FIG. 17 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the second terminal device sends the first duration to the first terminal device.
  • the first terminal device receives the first duration from the second terminal device.
  • the first duration is the duration of the inactivity timer.
  • the first duration may be greater than or equal to the upper limit of the CSI reporting delay or the calculation time of the CSI.
  • FIG. 18 is a schematic diagram of a CSI reporting delay upper limit and CSI calculation time disclosed in an embodiment of the present application.
  • FIG. 18 illustrates a situation in which four types of terminal equipment are in DRX, and the terminal equipment cannot report the CSI report because the terminal equipment cannot determine the transmission resource by means of sensing or partial sensing.
  • FIG. 18 is only an exemplary illustration, and does not constitute a limitation, and other situations may also be used, which are not limited herein.
  • the second terminal device can configure or reconfigure the duration of the inactive timer for the first terminal device, and the duration of the inactive timer can be greater than or equal to CSI calculation time, so as to ensure that the first terminal device can determine the transmission resource through sensing or partial sensing, or can learn more sensing results to improve the reliability of the transmission resource, so that the CSI report can be reported through the determined transmission resource.
  • the duration of the inactive timer is equal to the calculation time of the CSI, which can also ensure that the first terminal device can report the CSI report.
  • the terminal equipment reports the CSI report within the upper limit of the CSI report delay. Therefore, in order to ensure that the terminal device can determine the transmission resource through perception or partial perception within the upper limit of the CSI report delay, so as to report the CSI report through the determined reliable transmission resource, when the first terminal device is in DRX, the second terminal device is in DRX.
  • the device may configure or reconfigure the duration of the inactive timer for the first terminal device, and the duration of the inactive timer may be greater than or equal to the upper limit of the CSI reporting delay.
  • the second terminal device may first determine whether the overlap time between the upper limit of the CSI reporting delay and the period of activation time of the first terminal device DRX is less than the calculation time of the CSI, and when it is determined that the upper limit of the CSI reporting delay and the DRX of the first terminal device overlap When the overlapping time between the periodic activation times is less than (or less than or equal to) the calculation time of CSI, it indicates that the first terminal device may not be able to report the CSI report through the transmission resources determined in a perceptual or partial perceptual manner, or the first terminal device may only report the CSI report. Knowing a small part of the sensing results within the sensing window cannot guarantee the reliability of the transmission resources determined according to the sensing results.
  • the second terminal device may configure or reconfigure the duration of the inactivity timer for the first terminal device.
  • the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX cycle of the first terminal device is greater than or equal to (or greater than) the calculation time of CSI, it indicates that the first terminal device can perceive or partially perceive
  • the determined transmission resource reports the CSI report and the second terminal device may not configure or reconfigure the duration of the inactive timer for the first terminal device, thereby reducing the transmission and processing of unnecessary information, thereby saving transmission resources and reducing terminal costs.
  • the power consumption of the device is determined that the overlap time between the upper limit of the CSI reporting delay and the activation time of the DRX cycle of the first terminal device is greater than or equal to (or greater than) the calculation time of CSI.
  • the second terminal device may select a duration that meets the requirements from the multiple durations to configure or reconfigure Configured to the first terminal device.
  • the second terminal device may configure or reconfigure the duration of the next inactivity timer for the first terminal device. Because the value or type of the priority of the data sent by the first terminal device may have a high similarity in a short period of time, if it is too late to adjust the duration of the inactive timer currently, you can adjust the value of the inactive timer to be started next time. duration. Wherein, the larger the value of the priority is, the higher or lower the corresponding priority level may be, which is not limited herein.
  • the duration of the inactive timer in the first terminal device is not configured by the second terminal device, but determined adaptively in the first terminal device.
  • the first terminal device may be configured, preconfigured or pre-defined with multiple different durations of the inactive timer, and the first terminal device may select a duration that meets the requirements from the multiple durations for use.
  • FIG. 19 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the second terminal device sends third indication information to the first terminal device.
  • the first terminal device receives the third indication information from the second terminal device.
  • the second terminal device may send third indication information to the first terminal device.
  • the third indication information is used to trigger the reporting of CSI, and it can be understood that the third indication information has the function of triggering the first terminal device to report the CSI report to the second terminal device.
  • the third indication information may be carried on the fifth PSSCH, and it can be understood that the third indication information may be transmitted through the physical sideline shared channel.
  • the third indication information may include a second-level SCI, and the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the value of the CSI request field may be 1 or 0, which is not limited here.
  • the fifth PSSCH may include a second-level SCI
  • the second-level SCI may include a CSI request field
  • the third indication information may be a CSI request field.
  • the third indication information may be an indicator in the fifth PSSCH.
  • the third indication information may be a reference signal in the fifth PSSCH, and the reference signal may be various reference signals such as CSI-RS.
  • the third indication information may be one bit in the fifth PSSCH. For example, when this bit is 0 or 1, it is used to trigger the reporting of CSI. It should be understood that the above limitation on the third indication information is only an exemplary description, and does not constitute a limitation on the third indication information, and the third indication information can be any form of information, fields, bits, signaling, news etc.
  • the fifth PSSCH may further include CSI-RS.
  • the third indication information may also be carried on the PSCCH.
  • the second terminal device may also send the PSSCH carrying the CSI-RS to the first terminal device.
  • the first terminal device sends a CSI report to the second terminal device.
  • the first terminal device After the first terminal device receives the third indication information from the second terminal device, it may first determine whether the overlap length between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is greater than or equal to (or greater than) the first terminal device. time. When it is judged that the overlap length between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is greater than or equal to (or greater than) the first time, it indicates that the first terminal device can determine the transmission by means of perception or partial perception.
  • the resource reports the CSI report, the first terminal device may determine the transmission resource by means of perception or partial perception, and send the CSI report to the second terminal device by using the determined transmission resource.
  • the first terminal device When it is judged that the overlap length between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is less than (or less than or equal to) the first time, it indicates that the first terminal device cannot transmit the transmission determined by sensing or partial sensing.
  • the resource reports the CSI report, and the first terminal device may not report the CSI report.
  • the first terminal device may also switch the period of the DRX, so that the overlapping length between the activation time of the DRX of the first terminal device after switching and the upper limit of the CSI report delay is greater than or equal to (or greater than) the first time, and then the first terminal device
  • the transmission resource may be determined in a perceptual or partially perceptual manner, and the CSI report may be sent to the second terminal device through the determined transmission resource.
  • the first time may be the calculation time of the CSI, or may be the first threshold, or may be the first ratio of the upper limit of the CSI reporting delay.
  • the first threshold and the first ratio may be pre-configured, may be configured by the second terminal device, may be configured by a network device, may also be configured by PC5RRC, or may be configured by other methods, here Unlimited.
  • the second terminal device may send the third indication information and the value of the priority of the third indication information to the first terminal device.
  • the first terminal device may receive the third indication information and the value of the priority of the third indication information from the second terminal device.
  • the first terminal device may first determine whether the value of the priority of the third indication information is less than (or less than or equal to) the second threshold.
  • the value of the priority of the third indication information is less than (or less than or equal to) the second threshold, it indicates that the service is an important service, the normal transmission of the service can be guaranteed, and the cycle of the first terminal device DRX can be switched.
  • the value of the priority of the third indication information is greater than or equal to (or greater than) the second threshold, it indicates that the service is not important, and the cycle of the DRX of the first terminal device may not be switched.
  • the smaller the value of the above-mentioned priority is, the higher the level of the corresponding priority is.
  • the first terminal device may first determine whether the value of the priority of the third indication information is greater than (or greater than or equal to) the second threshold. When it is determined that the priority value of the third indication information is greater than (or greater than or equal to) the second threshold, it indicates that the service is an important service, normal transmission of the service can be guaranteed, and the cycle of the first terminal device DRX can be switched. When it is determined that the value of the priority of the third indication information is less than or equal to (or less than) the second threshold, it indicates that the service is not important, and the cycle of the first terminal device DRX may not be switched.
  • the second threshold may be configured by the network device, or may be configured in other manners, such as pre-configuration, default configuration, etc., or may be predefined. In one case, when the second threshold is not configured, the first terminal device may not switch the period of the DRX of the first terminal device by default.
  • the first terminal device After receiving the third indication information, the first terminal device needs to generate a CSI report.
  • the previously received or stored CSI-RS may be used, or other information may be used.
  • the first terminal device may also use the CSI-RS received this time to generate a CSI report.
  • FIG. 20 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the second terminal device sends fourth indication information to the first terminal device.
  • the first terminal device receives the fourth indication information from the second terminal device.
  • the second terminal device may send fourth indication information to the first terminal device.
  • the fourth indication information is used to trigger CSI reporting, and it can be understood that the fourth indication information has the function of triggering the first terminal device to report the CSI report to the second terminal device.
  • the fourth indication information may be carried on the sixth PSSCH, and it can be understood that the fourth indication information may be transmitted through the physical sideline shared channel.
  • the fourth indication information may include a second-level SCI, and the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the value of the CSI request field may be 1 or 0, which is not limited here.
  • the sixth PSSCH may include a second-level SCI, the second-level SCI may include a CSI request field, and the fourth indication information may be a CSI request field.
  • the fourth indication information may be an indicator in the sixth PSSCH.
  • the fourth indication information may be a reference signal in the sixth PSSCH, and the reference signal may be various reference signals such as CSI-RS.
  • the fourth indication information may be one bit in the sixth PSSCH. For example, when this bit is 0 or 1, it is used to trigger the reporting of CSI. It should be understood that the above limitation on the fourth indication information is only an exemplary description, and does not constitute a limitation on the fourth indication information.
  • the fourth indication information can be any form of information, fields, bits, signaling, news etc.
  • the sixth PSSCH may further include CSI-RS.
  • the fourth indication information may also be carried on the PSCCH.
  • the second terminal device may also send the PSSCH carrying the CSI-RS to the first terminal device.
  • the first terminal device switches the period of the DRX of the first terminal device.
  • the first terminal device After the first terminal device receives the fourth indication information from the second terminal device, it may first determine whether the overlapping length between the upper limit of the CSI report delay and the activation time of the DRX of the first terminal device is less than (or less than or equal to) the first terminal device. time. When it is judged that the overlap length between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is less than (or less than or equal to) the first time, it indicates that the first terminal device cannot transmit the transmission determined by sensing or partial sensing.
  • the resource reports the CSI report
  • the first terminal device can switch the period of the DRX of the first terminal device, so that the overlapping length between the activation time of the DRX of the first terminal device after switching and the upper limit of the CSI report delay is greater than or equal to (or greater than) the first a time.
  • the first terminal device may determine the transmission resource by means of perception or partial perception, and send the CSI report to the second terminal device by using the determined transmission resource.
  • the first time may be the calculation time of the CSI, or may be the first threshold, or may be the first ratio of the upper limit of the CSI reporting delay.
  • the first threshold and the first ratio may be pre-configured, may be configured by the second terminal device, may be configured by a network device, may also be configured by PC5RRC, or may be configured by other methods, here Unlimited.
  • the second terminal device may send the fourth indication information and the value of the priority of the fourth indication information to the first terminal device.
  • the first terminal device may receive the fourth indication information and the value of the priority of the fourth indication information from the second terminal device.
  • the first terminal device may first determine whether the value of the priority of the fourth indication information is less than or equal to (or less than) the third threshold. When it is judged that the value of the priority of the fourth indication information is less than or equal to (or less than) the third threshold, it indicates that the service is an important service.
  • the cycle of the first terminal device DRX can be switched.
  • the priority value of the fourth indication information is greater than (or greater than or equal to) the third threshold, it indicates that the service is not important, and the first terminal device may not switch the cycle of the first terminal device DRX.
  • the third threshold may be configured by the network device, or configured in other ways, pre-configured, or pre-defined. When the third threshold is not configured, the first terminal device does not switch the period of the DRX of the first terminal device by default.
  • the first terminal device may first determine whether the value of the priority of the fourth indication information is greater than (or greater than or equal to) the third threshold.
  • the priority value of the fourth indication information is greater than (or greater than or equal to) the third threshold, it indicates that the service is an important service, normal transmission of the service can be ensured, and the cycle of the first terminal device DRX can be switched.
  • the value of the priority of the fourth indication information is less than or equal to (or less than) the third threshold, it indicates that the service is not important, and the cycle of the DRX of the first terminal device may not be switched.
  • the third threshold may be configured by the network device, or may be configured in other ways, such as pre-configuration, default configuration, etc., or may be predefined. In one case, when the third threshold is not configured, the first terminal device may not switch the period of the DRX of the first terminal device by default.
  • the first terminal device After receiving the third indication information, the first terminal device needs to generate a CSI report.
  • the previously received or stored CSI-RS may be used, or other information may be used.
  • the first terminal device may also use the CSI-RS received this time to generate a CSI report.
  • FIG. 21 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the second terminal device sends the first data packet and the value of the priority of the first data packet to the first terminal device.
  • the first terminal device receives the first data packet and the value of the priority of the first data packet from the second terminal device.
  • the first terminal device disables DRX.
  • the first terminal device After the first terminal device receives the first data packet from the second terminal device and the value of the priority of the first data packet, it can first determine whether the value of the priority of the first data packet is less than (or less than or equal to) the fourth threshold. When it is determined that the value of the priority of the first data packet is less than (or less than or equal to) the fourth threshold, it indicates that the service corresponding to the first data packet is an important service. For normal data transmission, the first terminal device may disable DRX. When it is determined that the value of the priority of the first data packet is greater than or equal to (or greater than) the sixth threshold, it indicates that the service corresponding to the first data packet is not an important service.
  • the first terminal device can enable DRX.
  • the fourth threshold and the sixth threshold may be the same or different.
  • the value of the priority corresponding to the sixth threshold is greater than the value of the priority corresponding to the fourth threshold.
  • the first terminal device when the value of the priority of the data packet is greater than or equal to 1 and less than or equal to 4, it indicates that the corresponding service is important, and when the first terminal device is in DRX, the first terminal device can disable DRX.
  • the value of the priority of the data packet is greater than or equal to 5 and less than or equal to 8, it indicates that the corresponding service is not important, and when the first terminal device is not in DRX, the first terminal device can enable DRX.
  • a threshold may be configured or pre-configured for each resource pool, such as 4.
  • the first terminal device When the value of the priority of the data packet is less than or equal to (or less than) 4, it indicates that the corresponding service is important.
  • the first terminal device When the first terminal device is in DRX , the first terminal device can disable DRX.
  • the value of the priority of the data packet is greater than (or greater than or equal to) 4, it indicates that the corresponding service is not important, and when the first terminal device is not in DRX, the first terminal device may enable DRX.
  • the threshold when the threshold is not configured, the first terminal device may enable DRX by default.
  • the first terminal device can first determine whether the value of the priority of the first data packet is greater than (or greater than or equal to) ) fourth threshold.
  • the fourth threshold it indicates that the service corresponding to the first data packet is an important service.
  • the first terminal device may disable DRX. In this way, the terminal device can avoid not receiving important data due to being in DRX dormancy.
  • the first terminal device When it is judged that the value of the priority of the first data packet is less than or equal to (or less than) the sixth threshold, it indicates that the service corresponding to the first data packet is not an important service.
  • the first terminal device When the first terminal device is not in DRX, in order to reduce the first The power consumption of the terminal device, the first terminal device can enable DRX.
  • the fourth threshold and the sixth threshold may be the same or different. When the fourth threshold is different from the sixth threshold, the value of the priority corresponding to the sixth threshold is lower than the value of the priority corresponding to the fourth threshold.
  • the fourth threshold and/or the sixth threshold may be configured by the network device, or may be configured in other manners, such as pre-configuration, default configuration, etc., or may be predefined. In one case, when the fourth threshold and/or the sixth threshold are not configured, the first terminal device may enable DRX by default.
  • FIG. 22 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the second terminal device sends the second data packet and the value of the priority of the second data packet to the first terminal device.
  • the first terminal device receives the second data packet and the value of the priority of the second data packet from the second terminal device.
  • the first terminal device adjusts the period of the DRX of the first terminal device according to the value of the priority of the second data packet.
  • the first terminal device After receiving the first data packet and the priority value of the first data packet from the second terminal device, the first terminal device can adjust the period of the DRX of the first terminal device according to the priority value of the second data packet. For example, when the priority value of the second data packet is low, it indicates that the service corresponding to the second data packet is an important service. When the value of the priority of the packet is high, it indicates that the service corresponding to the second data packet is not an important service. In order to reduce the power consumption of the first terminal device, the period of the DRX of the first terminal device can be reduced.
  • reducing the cycle of the first terminal device DRX can be understood as reducing the cycle length of the first terminal device DRX, or reducing the proportion of the activation time in the cycle of the first terminal device DRX.
  • a threshold can be configured or preconfigured for each resource pool. When the value of the priority of the data packet is less than or equal to (or less than) this threshold, it indicates that the service corresponding to the data packet is an important service, and the first terminal device can adjust the DRX cycle to be a long cycle; when the value of the priority of the data packet is greater than (or greater than or equal to) this threshold, it indicates that the service corresponding to the data packet is not important, and the first terminal device can adjust the DRX cycle to be a short cycle.
  • adjusting the DRX cycle may be understood as adjusting the length of the DRX cycle or adjusting the proportion occupied by the activation time in the DRX cycle.
  • adjusting the DRX cycle to a short cycle may be understood as adjusting the length of the DRX cycle to a short cycle length, or adjusting the proportion occupied by the activation time in the DRX cycle to a smaller proportion.
  • one table may be configured or preconfigured per resource pool.
  • the table shows the correspondence between the value intervals of different priorities and the values of different DRX cycles.
  • the correspondence can be as shown in Table 1:
  • the length of A is greater than the length of B, and the length of B is greater than the length of C.
  • the first terminal device adjusts the DRX cycle of the first terminal device according to the priority value of the second data packet. It can be understood that the first terminal device adjusts the next DRX cycle according to the priority value of the second data packet. Because the DRX cycle of the first terminal device is repeated, adjusting the current DRX cycle according to the value of the received data packet and the priority of the data packet may be too flexible and lead to a tight processing time of the terminal device. Since the data scheduling in a short time is similar, the next DRX cycle can be adjusted.
  • the smaller the value of the priority corresponds to the lower the level of the priority.
  • the priority value of the second data packet when the priority value of the second data packet is high, it indicates that the service corresponding to the second data packet is an important service.
  • the period of the DRX of the first terminal device can be increased;
  • the value of the priority of the packet is low, it indicates that the service corresponding to the second data packet is not an important service.
  • the period of the DRX of the first terminal device can be reduced.
  • FIG. 23 is a schematic flowchart of another communication method disclosed by an embodiment of the present application.
  • the communication method may include the following steps.
  • the functions performed by the terminal device in the following steps may also be performed by a module (for example, a chip) in the terminal device.
  • the first terminal device determines a resource selection mode according to a first ratio.
  • the terminal device generally determines the transmission resource in a perceptual manner during the resource selection process in Mode 2.
  • the cycle of DRX since the cycle of DRX includes an active period and a dormant period, the terminal device cannot receive information during the dormant period of DRX. Therefore, the sensing window and the active period of DRX may not intersect, or may partially intersect. There may be complete overlap. Therefore, when the sensing window and the activation period of DRX do not intersect or have a partial intersection, the terminal device cannot obtain or can only obtain partial sensing results.
  • the terminal device when the terminal device is in DRX, the terminal device may not necessarily be able to determine the transmission resource using the sensing method, or cannot guarantee that the transmission resource determined using the sensing method is available or trustworthy.
  • acquiring the perception result can be understood as acquiring the resource occupation information in the SCI or PSCCH after receiving the SCI or PSCCH, and comparing the RSRP measurement value and the threshold to determine whether the resource indicated in the SCI or PSCCH is available.
  • FIG. 38 is a schematic diagram of a sensing window in the dormant period of DRX according to an embodiment of the present application. As shown in FIG. 38 , when all the sensing windows are in the dormant period of DRX, since the terminal device cannot receive information during the dormant period, the terminal device cannot determine the transmission resource through the sensing method.
  • FIG. 39 is a schematic diagram of a sensing window disclosed in an embodiment of the present application in the activation period of DRX. As shown in FIG. 39 , when all the sensing windows are in the active period of DRX, since the terminal device can receive information during the active period, the terminal device can determine the transmission resource through the sensing method.
  • FIG. 40 is a schematic diagram showing that a sensing window disclosed by an embodiment of the present application overlaps with the activation period of DRX.
  • the terminal device can receive and obtain the sensing result.
  • the terminal device cannot receive and thus cannot obtain sensing results.
  • the terminal device subsequently needs to determine the transmission resource according to the sensing result, the terminal device can only use the sensing result in the first half of the sensing window. Since the sensing result in the second half is missing, the probability of resource conflict is high.
  • Terminal equipment has a high probability of causing interference. That is to say, a terminal device that performs DRX will generate more interference than a terminal device that does not perform DRX.
  • FIG. 41 is a schematic diagram of another sensing window disclosed in an embodiment of the present application overlapping with the activation period of DRX.
  • the terminal device when the first half of the sensing window is in the dormant period of DRX, the terminal device cannot receive it, and thus cannot obtain the sensing result.
  • the terminal device can receive it, and then obtain the sensing result.
  • the terminal device can only use the sensing result in the second half of the sensing window. Since the sensing result may be small, the probability of resource conflict is high. The probability of equipment interference is high.
  • the sensing window in FIGS. 38-41 may be a continuous period of fixed length.
  • the sensing window can also be a continuous period of time determined according to parameters. For example, when resource selection is triggered at time slot n, the sensing window is Among them, T 0 is configured by high-level parameters, can be determined according to Table 2.
  • the unit can be time slot.
  • FIGS. 38 to 41 are exemplary illustrations of the relationship between the sensing window and the activation period and sleep period of DRX, and do not constitute a limitation.
  • the sensing window and the activation period and/or sleep period of DRX can also be overlapped in other ways. , which is not limited here.
  • the first terminal device may determine the resource selection manner according to the first ratio.
  • the first ratio is the ratio of the activation time of DRX and the overlapping time of the sensing window to the sensing window.
  • the resource selection method can be a perceptual method or a random selection method.
  • the way of perception can be perception or partial perception.
  • the perception window of perception is a continuous period of time.
  • the sensing window for partial sensing may be a continuous period of time, or a set of discontinuous time slots.
  • the first terminal device may first determine or calculate the first ratio, and then may determine whether the first ratio is greater than (or greater than or equal to) the fifth threshold, and when it is determined that the first proportion is greater than (or greater than or equal to) the fifth threshold, It shows that the perception result can be obtained for a long time through the perception method, and the perception result can be trusted. Since the interference caused by the reduction of the perception result is limited, the resource selection method can be the perception method, and the transmission resources can be determined by the perception method.
  • the resource selection mode may be a random selection mode, and the transmission resources may be determined by a random selection mode subsequently.
  • the sequence of calculating the first ratio by the first end device and judging the magnitude relationship between the first ratio and the fifth threshold is not limited.
  • the first terminal device may determine or calculate the first ratio while determining whether the first ratio is greater than the fifth threshold.
  • the selection method at any time may use the first resource pool, the sensing method may use the second resource pool, and the first resource pool is different from the second resource pool. That is, the resource pool in the random selection mode and the resource pool in the sensing mode are different resource pools.
  • the first terminal device is configured with two resource pools, resources in one resource pool are used by the terminal device in a perceptual manner, and resources in the other resource pool are used by the terminal device in a random selection manner. It can be seen that the selection mode can have a dedicated resource pool at any time, and the resource pool is not shared with the perception mode.
  • the terminal devices all determine the resources through the random selection method, and the mutual interference levels are similar, which is more fair to the terminal equipment.
  • the unfair problem caused by the random selection method and the perception method being configured together in a resource pool is reduced.
  • the resource pool of the random selection mode and the resource pool of the perception mode are the same resource pool.
  • the first terminal device is configured with a resource pool, and the resource pool supports resource selection in a perception mode and a random selection mode. That is, any resource that is perceived, partially perceived or randomly selected can be selected from this resource pool.
  • the problem of resource waste caused by fewer terminal devices using the random selection method in the resource pool that is only configured with random selection is avoided, and the spectrum utilization rate is improved.
  • the resource pool of the random selection method and the resource pool of the perception method can be the same resource pool or different resource pools, in order to reduce the probability or possibility of resource conflict, the random selection method and the perception method can preferably be different. resource pool.
  • the network device may configure a fifth threshold for the first terminal device, so that the first terminal device may determine a resource selection manner according to the fifth threshold. Therefore, when the network device is configured with the fifth threshold, it indicates that the first terminal device can use multiple resource selection methods, and the first terminal device can determine the resource selection method according to the fifth threshold. If the network device does not configure the fifth threshold In the case of , it indicates that the first terminal device can only use the sensing mode, and the first terminal device can use the sensing mode to determine the transmission resource.
  • the fifth threshold may also be configured by default, or may be configured in other manners, which are not limited herein.
  • the unit of the activation time of the timer in the above several method embodiments may be a unit such as ms, a symbol, and a time slot, or may be other units, which are not limited herein.
  • the unit of the activation time of the timer may be a specific unit or a relatively broad unit, which is not limited.
  • FIG. 24 is a schematic structural diagram of a communication device disclosed in an embodiment of the present application.
  • the communication device may include:
  • a sending unit 2401 configured to send first indication information to a first terminal device, where the first indication information is used to trigger CSI reporting;
  • the monitoring unit 2403 is configured to monitor the PSCCH or the SCI within the activation time of the first timer.
  • listening to the PSCCH or SCI is used to receive a CSI report from the first terminal device.
  • the first indication information is carried on the first PSSCH.
  • the first PSSCH further includes CSI-RS.
  • the activation unit 2402 is specifically configured to activate the first timer at the Mth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, where M is an integer greater than or equal to 1 .
  • the activation time of the first timer is determined according to the upper limit of the CSI reporting delay.
  • the activation time of the first timer is less than or equal to the upper limit of the CSI reporting delay.
  • the activation unit 2402 is specifically configured to activate the first timer at the Nth symbol after the first PSSCH, the first indication information, or the end symbol of the CSI-RS, where N is greater than the calculation time of the CSI. Integer.
  • the activation time of the first timer is determined according to the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation time of the first timer is less than or equal to the difference between the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation unit 2402 is further configured to activate the second timer at the first symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, and at the activation time of the second timer It does not monitor PSCCH or SCI.
  • the first indication information may include a second-level SCI
  • the second-level SCI may include a CSI request field, where the CSI request field is used to trigger CSI reporting.
  • the communication device may further include:
  • the determining unit 2404 is configured to determine that the first timer expires when the CSI report from the first terminal device is received or the first timer expires.
  • FIG. 25 is a schematic structural diagram of another communication apparatus disclosed in an embodiment of the present application.
  • the communication device may include:
  • a receiving unit 2501 configured to receive first indication information from a second terminal device, where the first indication information is used to trigger CSI reporting;
  • the sending unit 2503 is configured to send the CSI report to the second terminal device within the activation time of the third timer.
  • the sending unit 2503 is specifically configured to:
  • a second PSSCH is sent to the second terminal device, the second PSSCH includes a CSI report.
  • the first indication information is carried on the first PSSCH.
  • the first PSSCH further includes CSI-RS.
  • the activation unit 2502 is specifically configured to activate the third timer at the Mth symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, where M is an integer greater than or equal to 1 .
  • the activation time of the third timer is determined according to the upper limit of the CSI reporting delay.
  • the activation time of the third timer is less than or equal to the upper limit of the CSI reporting delay.
  • the activation unit 2502 is specifically configured to activate the third timer at the Nth symbol after the first PSSCH, the first indication information, or the end symbol of the CSI-RS, where N is greater than the calculation time of the CSI Integer.
  • the activation time of the third timer is determined according to the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation time of the third timer is less than or equal to the difference between the upper limit of the CSI reporting delay and the calculation time of the CSI.
  • the activation unit 2502 is further configured to activate the fourth timer at the first symbol after the first PSSCH, the first indication information or the end symbol of the CSI-RS, and at the activation time of the fourth timer Does not monitor PSCCH or SCI.
  • the first indication information includes a second-level SCI
  • the second-level SCI includes a CSI request field
  • the CSI request field is used to trigger the reporting of CSI.
  • the communication device may further include:
  • the determining unit 2504 is configured to determine that the third timer expires when the sending of the CSI report is completed.
  • the communication device may further include:
  • a generating unit 2505, configured to generate a CSI report according to the CSI-RS.
  • receiving unit 2501, activating unit 2502, sending unit 2503, determining unit 2504 and generating unit 2505 can be obtained directly by referring to the relevant description of the first terminal device in the method embodiment shown in FIG. Add elaboration.
  • FIG. 26 is a schematic structural diagram of another communication apparatus disclosed in an embodiment of the present application.
  • the communication device may include:
  • a receiving unit 2601 configured to receive second indication information from a second terminal device, where the second indication information is used to trigger CSI reporting;
  • a sending unit 2602 configured to send a third PSSCH to the second terminal device within the upper limit of the CSI report delay when the first terminal device is in DRX, where the third PSSCH includes the CSI report;
  • the time domain resources of the third PSSCH belong to the intersection between the upper limit of CSI reporting delay and the activation time of DRX.
  • the resources of the third PSSCH are determined by random selection.
  • the resources of the third PSSCH are resources determined through sensing or partial sensing.
  • the resources of the third PSSCH are resources determined through sensing or partial sensing, and the second ratio is the ratio of the activation time of DRX and the overlapping time of the sensing window to the sensing window.
  • the resources of the third PSSCH are determined by random selection, and the second ratio is the ratio of the activation time of DRX and the overlapping time of the sensing window to the sensing window.
  • the second indication information is carried on the fourth PSSCH.
  • the fourth PSSCH further includes CSI-RS.
  • the communication device may further include:
  • a generating unit 2603 configured to generate a CSI report according to the CSI-RS.
  • the second indication information includes a second-level SCI
  • the second-level SCI includes a CSI request field
  • the CSI request field is used to trigger the reporting of CSI.
  • receiving unit 2601 sending unit 2602 and generating unit 2603 can be obtained directly by referring to the relevant description of the first terminal device in the method embodiment shown in FIG. 12 , which will not be repeated here.
  • FIG. 27 is a schematic structural diagram of another communication apparatus disclosed in an embodiment of the present application.
  • the communication device may include:
  • the sending unit 2701 is configured to send a CSI report delay upper limit to the first terminal device, where the CSI report delay upper limit is greater than the sum of the sleep time of the first terminal device DRX and the CSI calculation time.
  • FIG. 28 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • the communication device may include:
  • the receiving unit 2801 is configured to receive a CSI report delay upper limit from the second terminal device, where the CSI report delay upper limit is greater than the sum of the sleep time of the first terminal device DRX and the CSI calculation time.
  • a more detailed description of the above receiving unit 2801 can be obtained directly by referring to the relevant description of the first terminal device in the method embodiment shown in FIG. 15 , and details are not repeated here.
  • FIG. 29 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application. As shown in Figure 29, the communication device may include:
  • the sending unit 2901 is configured to send a first duration to the first terminal device, where the first duration is greater than or equal to the upper limit of the CSI reporting delay or the calculation time of the CSI, and the first duration is the duration of the inactive timer.
  • the sending unit 2901 is specifically configured to send the first duration to the first terminal device when the overlapping time between the upper limit of the CSI reporting delay and the activation time of the DRX of the first terminal device is less than the calculation time of the CSI.
  • FIG. 30 is a schematic structural diagram of another communication apparatus disclosed in an embodiment of the present application.
  • the communication device may include:
  • the receiving unit 3001 is configured to receive a first duration from the second terminal device, where the first duration is greater than or equal to the upper limit of the CSI reporting delay or the calculation time of the CSI, and the first duration is the duration of the inactive timer.
  • the receiving unit 3001 is specifically configured to, when the overlapping time between the upper limit of the CSI reporting delay and the activation time of the period of the DRX of the first terminal equipment is less than the calculation time of the CSI, receive the first information from the second terminal equipment. a long time.
  • a more detailed description of the above receiving unit 3001 can be obtained directly by referring to the relevant description of the first terminal device in the method embodiment shown in FIG. 17 , and details are not repeated here.
  • FIG. 31 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • the communication device may include:
  • a receiving unit 3101 configured to receive third indication information from the second terminal device, where the third indication information is used to trigger CSI reporting;
  • the sending unit 3102 is configured to send the CSI report to the second terminal device when the overlap length between the upper limit of the CSI report delay and the activation time of the DRX of the first terminal device is greater than or equal to the first time.
  • the first time is the calculation time of the CSI, the first threshold or the first proportion of the upper limit of the CSI reporting delay.
  • the communication device may further include:
  • the processing unit 3103 is used to determine not to report the CSI report when the overlap length between the upper limit of the CSI report delay and the activation time of the DRX is less than the first time, or to switch the period of the DRX, the activation time of the DRX after the switch and the CSI report
  • the overlapping length between the delay upper limits is greater than or equal to the first time.
  • the receiving unit 3101 is specifically configured to receive the third indication information and the priority value of the third indication information from the second terminal device;
  • the period in which the processing unit 3103 switches the DRX includes:
  • the third indication information is carried on the fifth PSSCH.
  • the fifth PSSCH further includes CSI-RS.
  • the communication device may further include:
  • a generating unit 3104 configured to generate the CSI report according to the CSI-RS.
  • the third indication information includes a second-level SCI
  • the second-level SCI includes a CSI request field
  • the CSI request field is used to trigger the reporting of CSI.
  • receiving unit 3101, sending unit 3102, processing unit 3103 and generating unit 3104 can be obtained directly by referring to the relevant description of the first terminal device in the method embodiment shown in FIG. 19, and will not be repeated here.
  • FIG. 32 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • the communication device may include:
  • a receiving unit 3201 configured to receive fourth indication information from the second terminal device, where the fourth indication information is used to trigger CSI reporting;
  • the switching unit 3202 is configured to switch the period of the DRX when the overlapping length of the upper limit of the CSI report delay and the activation time of the first terminal equipment DRX is less than the first time, between the activation time of the switched DRX and the upper limit of the CSI report delay
  • the overlap length is greater than or equal to the first time.
  • the first time is the calculation time of the CSI, the first threshold or the first proportion of the upper limit of the CSI reporting delay.
  • the receiving unit 3201 is specifically configured to receive the fourth indication information and the priority value of the fourth indication information from the second terminal device;
  • the switching unit 3202 is specifically configured to switch the period of the DRX when the value of the priority is less than the third threshold.
  • FIG. 33 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • the communication device may include:
  • a receiving unit 3301 configured to receive the first data packet from the second terminal device and the value of the priority of the first data packet
  • the disabling unit 3302 is configured to disable the DRX when the value of the priority is less than the fourth threshold.
  • FIG. 34 is a schematic structural diagram of another communication apparatus disclosed in an embodiment of the present application.
  • the communication device may include:
  • a receiving unit 3401 configured to receive the second data packet from the second terminal device and the value of the priority of the second data packet
  • the adjustment unit 3402 is configured to adjust the period of the DRX according to the value of the priority.
  • FIG. 35 is a schematic structural diagram of another communication apparatus disclosed in an embodiment of the present application.
  • the communication device may include:
  • a determination unit 3501 configured to determine a resource selection mode according to a first ratio when the first terminal device is in DRX, where the first ratio is the ratio of the activation time of the DRX and the overlapping time of the sensing window to the sensing window;
  • the resource selection mode When the first ratio is greater than the fifth threshold, the resource selection mode is a perceptual mode, and when the first ratio is less than or equal to the fifth threshold, the resource selection mode is a random selection mode.
  • the sensing mode is sensing or partial sensing.
  • the selection mode uses the first resource pool at any time, and the sensing mode uses the second resource pool, and the first resource pool is different from the second resource pool.
  • the fifth threshold is configured by the network device.
  • a more detailed description of the foregoing determining unit 3501 can be obtained directly by referring to the relevant description of the first terminal device in the method embodiment shown in FIG. 23 , which will not be repeated here.
  • FIG. 36 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • the communication device may include a processor 3601 , a memory 3602 , an input interface 3603 , an output interface 3604 and a bus 3605 .
  • the memory 3602 can exist independently, and can be connected to the processor 3601 through the bus 3605 .
  • the memory 3602 may also be integrated with the processor 3601. Among them, the bus 3605 is used to realize the connection between these components.
  • the communication device may be a second terminal device or a module (eg, a chip) in the second terminal device, and when the computer program instructions stored in the memory 3602 are executed, the processor 3601 is used to control the sending unit 2401 performs the operations performed in the above-mentioned embodiments, the processor 3601 is further configured to perform the operations performed by the activation unit 2402, the monitoring unit 2403 and the determining unit 2404 in the above-mentioned embodiments, and the input interface 3603 is used for receiving external data from the communication device.
  • the output interface 3604 is used to perform the operations performed by the sending unit 2401 in the above-mentioned embodiment.
  • the foregoing second terminal device or a module in the second terminal device may also be used to execute various methods performed by the second terminal device in the foregoing method embodiment of FIG. 7 , and details are not described herein again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the processor 3601 is used to control the receiving unit 2501 and the sending unit 2503 perform the operations performed in the above embodiments, the processor 3601 is further configured to perform the operations performed by the activation unit 2502, the determining unit 2504 and the generating unit 2505 in the above embodiments, and the input interface 3603 is used to perform the above embodiments
  • the operation performed by the receiving unit 2501 in the above-mentioned embodiment, and the output interface 3604 is used to perform the operation performed by the sending unit 2503 in the above-mentioned embodiment.
  • the foregoing first terminal device or a module in the first terminal device may also be used to execute various methods performed by the first terminal device in the foregoing method embodiment of FIG. 7 , and details are not described again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the processor 3601 is used to control the receiving unit 2601 and the sending unit 2602 perform the operations performed in the above-mentioned embodiments
  • the processor 3601 is further configured to perform the operations performed by the generating unit 2603 in the above-mentioned embodiments
  • the input interface 3603 is used to perform the operations performed by the receiving unit 2601 in the above-mentioned embodiments
  • the output interface 3604 is used to perform the operations performed by the sending unit 2602 in the above embodiment.
  • the foregoing first terminal device or a module in the first terminal device may also be used to execute various methods performed by the first terminal device in the foregoing method embodiment of FIG. 12 , which will not be repeated here.
  • the communication device may be a second terminal device or a module (eg, a chip) in the second terminal device, and when the computer program instructions stored in the memory 3602 are executed, the processor 3601 is used to control the sending unit 2701 performs the operations performed in the above embodiments, the input interface 3603 is used to receive information from other communication devices other than the communication device, and the output interface 3604 is used to perform the operations performed by the sending unit 2701 in the above embodiments.
  • the foregoing second terminal device or a module in the second terminal device may also be used to execute various methods performed by the second terminal device in the foregoing method embodiment of FIG. 15 , which will not be described again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the processor 3601 is used to control the receiving unit 2801 performs the operations performed in the above-mentioned embodiments
  • the input interface 3603 is used for performing the operations performed by the receiving unit 2801 in the above-mentioned embodiments
  • the output interface 3604 is used for sending information to other communication devices other than the communication device.
  • the foregoing first terminal device or a module in the first terminal device may also be used to execute various methods performed by the first terminal device in the foregoing method embodiment of FIG. 15 , which will not be described again.
  • the communication device may be a second terminal device or a module (eg, a chip) in the second terminal device, and when the computer program instructions stored in the memory 3602 are executed, the processor 3601 is used to control the sending unit 2901 performs the operations performed in the above embodiments, the input interface 3603 is used to receive information from other communication devices other than the communication device, and the output interface 3604 is used to perform the operations performed by the sending unit 2901 in the above embodiments.
  • the foregoing second terminal device or a module in the second terminal device may also be used to execute various methods performed by the second terminal device in the foregoing method embodiment of FIG. 17 , which will not be described again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the processor 3601 is used to control the receiving unit 3001 performs the operations performed in the above-mentioned embodiments
  • the input interface 3603 is used for performing the operations performed by the receiving unit 3001 in the above-mentioned embodiments
  • the output interface 3604 is used for sending information to other communication devices other than the communication device.
  • the foregoing first terminal device or a module in the first terminal device may also be used to execute various methods performed by the first terminal device in the foregoing method embodiment of FIG. 17 , which will not be described again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the processor 3601 is used to control the receiving unit 3101 and the sending unit 3102 perform the operations performed in the above embodiments
  • the processor 3601 is further configured to perform the operations performed by the processing unit 3103 and the generating unit 3104 in the above embodiments
  • the input interface 3603 is used to perform the receiving unit 3101 in the above embodiments.
  • the operation performed, the output interface 3604 is used to perform the operation performed by the sending unit 3102 in the above-mentioned embodiment.
  • the foregoing first terminal device or a module in the first terminal device may also be used to execute various methods performed by the first terminal device in the foregoing method embodiment of FIG. 19 , which will not be described again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the processor 3601 is used to control the receiving unit 3201 performs the operations performed in the above-mentioned embodiments, the processor 3601 is also used to perform the operations performed by the switching unit 3202 in the above-mentioned embodiments, the input interface 3603 is used to perform the operations performed by the receiving unit 3201 in the above-mentioned embodiments, and the output interface 3604 is used for for sending information to other communication devices other than the communication device.
  • the above-mentioned first terminal device or a module in the first terminal device can also be used to execute various methods performed by the first terminal device in the above-mentioned method embodiment of FIG. 20 , and details are not described again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the processor 3601 is used to control the receiving unit 3301 performs the operations performed in the above-mentioned embodiments, the processor 3601 is also used to perform the operations performed by the disabling unit 3302 in the above-mentioned embodiments, the input interface 3603 is used to perform the operations performed by the receiving unit 3301 in the above-mentioned embodiments, and the output interface 3604 is used to send information to other communication devices other than the communication device.
  • the foregoing first terminal device or a module in the first terminal device may also be used to execute various methods performed by the first terminal device in the foregoing method embodiment of FIG. 21 , which will not be described again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device.
  • the processor 3601 is used to control the receiving unit 3401 performs the operations performed in the above-mentioned embodiments, the processor 3601 is also used to perform the operations performed by the adjustment unit 3402 in the above-mentioned embodiments, the input interface 3603 is used to perform the operations performed by the receiving unit 3401 in the above-mentioned embodiments, and the output interface 3604 is used for for sending information to other communication devices other than the communication device.
  • the foregoing first terminal device or a module in the first terminal device may also be used to execute various methods performed by the first terminal device in the foregoing method embodiment of FIG. 22 , which will not be described again.
  • the communication apparatus may be a first terminal device or a module (eg, a chip) in the first terminal device, and when the computer program instructions stored in the memory 3602 are executed, the processor 3601 is configured to execute the determining unit 3501
  • the input interface 3603 is used to receive information from other communication devices other than the communication device
  • the output interface 3604 is used to send information to other communication devices other than the communication device.
  • the foregoing first terminal device or a module in the first terminal device may also be used to execute various methods performed by the first terminal device in the foregoing method embodiment of FIG. 23 , which will not be described again.
  • FIG. 37 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.
  • the communication device may include an input interface 3701 , a logic circuit 3702 and an output interface 3703 .
  • the input interface 3701 and the output interface 3703 are connected through the logic circuit 3702 .
  • the input interface 3701 is used for receiving information from other communication devices, and the output interface 3703 is used for outputting, scheduling or sending information to other communication devices.
  • the logic circuit 3702 is configured to perform operations other than the operations of the input interface 3701 and the output interface 3703, for example, to implement the functions implemented by the processor 3601 in the above-mentioned embodiment.
  • the communication device may be a network device or a module of the network device, a first terminal device or a module of the first terminal device, or a second terminal device or a module of the second terminal device.
  • the more detailed description about the input interface 3701 , the logic circuit 3702 and the output interface 3703 can be obtained directly by referring to the relevant description of the first terminal device or the second terminal device in the above method embodiments, which will not be repeated here.
  • the embodiments of the present application further disclose a computer-readable storage medium, on which instructions are stored, and when the instructions are executed, the methods in the foregoing method embodiments are executed.
  • the embodiment of the present application further discloses a computer program product including an instruction, when the instruction is executed, the method in the foregoing method embodiment is executed.
  • An embodiment of the present application further discloses a communication system, the communication system includes a first terminal device and a second terminal device.
  • the communication system includes a first terminal device and a second terminal device.

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Abstract

本申请实施例公开一种通信方法、装置及计算机可读存储介质，包括：向第一终端设备发送第一指示信息，第一指示信息用于触发CSI的上报；激活第一定时器；在第一定时器的激活时间内，监听PSCCH或者SCI。本申请实施例，在向第一终端设备发送用于触发CSI上报的指示信息的情况下，激活一个定时器，在这个定时器的激活时间内进行监听，可以保证CSI报告传输的可靠性。

Description

一种通信方法、装置及计算机可读存储介质
本申请要求于2020年08月07日提交中国专利局、申请号为202010791696.X、申请名称为“一种通信方法、装置及计算机可读存储介质”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
本申请实施例涉及通信技术领域，尤其涉及一种通信方法、装置及计算机可读存储介质。
背景技术
终端设备一般使用的是电池等电量有限的供电装置，因此，当终端设备的功耗较大时，终端设备的使用时长较短。例如，当终端设备一直处于接收状态时，终端设备的功耗较大。为了解决上述问题，业界引入了非连续接收(discontinuous reception，DRX)。DRX包括激活期和休眠期，终端设备处于激活期时，监听物理下行链路控制信道(physical downlink control channel，PDCCH)，终端设备处于休眠期时，不监听PDCCH，从而可以降低终端设备的功耗。
目前，侧行链路(sidelink，SL)可以通过感知确定传输资源，例如，确定用于传输CSI报告的资源。然而，在SL中引入DRX之后，由于终端设备处于DRX的休眠期时无法接收信息，以致终端设备无法通过感知确定传输资源，或者感知的时间变短导致确定的传输资源发生冲突的概率增加，降低了CSI报告传输的可靠性。
发明内容
本申请实施例公开了一种通信方法、装置及计算机可读存储介质，用于保证CSI报告传输的可靠性。
第一方面公开一种通信方法，该通信方法可以应用于第二终端设备，也可以应用于第二终端设备中的模块(例如，芯片)，以下以第二终端设备为例进行说明。该通信方法可以包括：向第一终端设备发送第一指示信息，激活第一定时器，在第一定时器的激活时间内监听物理侧行链路控制信道(physical sidelink control channel，PSCCH)或者侧行链路控制信息(sidelink control information，SCI)。第一指示信息用于触发信道状态信息(channel state information，CSI)的上报。
本申请实施例中，第二终端设备可以向第一终端设备发送用于触发CSI上报的指示信息，以及激活一个定时器，在这个定时器的激活时间内可以监听PSCCH或者SCI，以便第二终端设备在这个定时器的激活时间内可以接收到来自其它终端设备、网络设备等设备的信息。可见，在SL中引入DRX之后，第二终端设备向第一终端设备发送用于触发CSI上报的指示信息的情况下，可以激活一个定时器，从而可以解决由于SL引入DRX，以致终端设备处于DRX的休眠期而无法接收到第一终端设备反馈的CSI报告的技术问题。由于第二终端设备向第一终端设备发送用于触发CSI上报的信息的情况下，可以激活一个定时器，在这个定时器的激活时间内第二终端设备可以保持监听状态，可以保证第二终端设备在这个定时器的激活时间内不会错过第一终端设备反馈的CSI报告，从而可以保证CSI报告传输的可靠性。
作为一种可能的实施方式，监听PSCCH或者SCI用于接收来自第一终端设备的CSI报告。
本申请实施例中，第二终端设备在定时器的激活时间内监听PSCCH或者SCI是为了接收来自第一终端设备的CSI报告，可以避免第二终端设备发送用于触发CSI上报的指示信息之后，由于第二终端设备处于DRX的休眠期而无法接收到第一终端设备反馈的CSI报告的问题，因此，当第二终端设备处于DRX时，可以保证CSI报告传输的可靠性。
作为一种可能的实施方式，第一指示信息承载在第一物理侧行链路共享信道(physical sidelink sharedchannel，PSSCH)上。
作为一种可能的实施方式，第一PSSCH还可以包括CSI-参考信号(reference signal，RS)。
本申请实施例中，第二终端设备除了向第一终端设备发送用于触发CSI上报的指示信息之外，还一起向第一终端设备发送了CSI-RS，以便当第一终端设备需要CSI-RS生成CSI报告时，可以直接根据接收的CSI-RS生成CSI报告，而不需要专门获取CSI-RS，可以保证CSI传输的可靠性，减少第一终端设备的功耗。
作为一种可能的实施方式，第二终端设备激活第一定时器可以包括：在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第M个符号，激活第一定时器，M为大于或等于1的整数。
本申请实施例中，第二终端设备是在第一PSSCH、第一指示信息或CSI-RS的结束符号后的符号激活第一定时器的，而不是在开始发送第一PSSCH时就激活定时器，由于第一终端设备接收CSI触发后需要时间生成CSI报告，不会在第二终端设备开始发送第一PSSCH时马上反馈CSI报告。因此，晚点启动定时器可以减少第二终端设备监听的时间，减少不必要的激活时间。从而可以在保证CSI报告传输可靠性的情况下降低终端设备的功耗。
作为一种可能的实施方式，第二终端设备激活第一定时器可以包括：在第一PSSCH、第一指示信息或CSI-RS的所在时隙后的第M个时隙，激活第一定时器，M为大于或等于1的整数。
本申请实施例中，以M为1举例，第二终端设备是在第一PSSCH、第一指示信息或CSI-RS的所在时隙后的第一个时隙激活第一定时器的，而不是在第一PSSCH的结束符号后的第一个符号就激活定时器，由于第一终端设备接收CSI触发后需要时间生成CSI报告，不会在第二终端设备发送第一PSSCH后马上反馈CSI报告。并且PSCCH的候选位置在一个时隙的固定符号位置(PSCCH符号有2个则为第二个符号和第三个符号；PSCCH符号有3个则为第二个符号、第三个符号和第四个符号)。因此，晚点启动定时器可以减少第二终端设备监听的时间，减少不必要的激活时间。从而可以在保证CSI报告传输可靠性的情况下降低终端设备的功耗。
作为一种可能的实施方式，第一定时器的激活时间根据CSI报告延时上限确定。
本申请实施例中，由于信道状态信息是随着时间的变化而变化，CSI报告体现了信道状态，具有时效性。因此，当触发CSI上报的指示信息与反馈的CSI报告之间的时间间隔较长时，上报的CSI报告可能不能体现触发CSI上报时的信道状态，以致CSI报告丧失了时效性。CSI报告延时上限是保证CSI报告时效性的最大时限。因此，为了保证CSI报告的时效性，定时器的激活时间要考虑CSI报告延时上限。
作为一种可能的实施方式，第一定时器的激活时间小于或等于CSI报告延时上限(report latency bound)。
本申请实施例中，由于信道状态信息是随着时间的变化而变化，CSI报告体现了信道状态，具有时效性。因此，当触发CSI上报的指示信息与反馈的CSI报告之间的时间间隔较长时，上报的CSI报告可能不能体现触发CSI上报时的信道状态，以致CSI报告丧失了时效性。CSI报告延时上限是保证CSI报告时效性的最大时限。因此，为了保证CSI报告的时效性，定时器的激活时间可以小于或等于CSI报告延时上限。
作为一种可能的实施方式，第二终端设备激活第一定时器包括：在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第N个符号，激活第一定时器，N为大于CSI的计算时间的整数。
本申请实施例中，第二终端设备是在第一PSSCH、第一指示信息或CSI-RS的结束符号之后CSI的计算时间后激活第一定时器的，而不是在开始发送第一PSSCH时就激活定时器，也不是在发送完第一PSSCH、第一指示信息或CSI-RS后立即或马上激活定时器。由于第一终端设备在接收到用于触发CSI上报的指示信息到生成CSI报告之间需要一段时间，这段时间为CSI的计算时间，第一终端设备在这段时间内不会发送CSI报告，相应地，第二终端设备在这段时间内不会接收到第一终端设备发送的CSI报告，因此，第二终端设备在这段时间内可以不监听控制信令，或不激活定时器，可以进一步减少第二终端设备监听控制信令的时间，从而可以在保证CSI报告传输可靠性的情况下尽可能的降低终端设备的功耗。
作为一种可能的实施方式，第一定时器的激活时间根据CSI报告延时上限和CSI的计算时间确定。
本申请实施例中，由于信道状态信息是随着时间的变化而变化，CSI报告体现了信道状态，具有时效性。因此，当触发CSI上报的指示信息与反馈的CSI报告之间的时间间隔较长时，上报的CSI报告可能不是触发CSI上报时的信道状态报告，以致CSI报告丧失时效性。而CSI报告延时上限是保证CSI报告时效性的最大时限。因此，第一定时器的激活时间需要考虑CSI报告延时上限。此外，由于第一定时器是在第一PSSCH、第一指示信息或CSI-RS的结束符号之后CSI的计算时间后被激活的，因此，第一定时器的激活时间也需要考虑CSI的计算时间。
作为一种可能的实施方式，第一定时器的激活时间小于或等于CSI报告延时上限与CSI的计算时间的差值。
本申请实施例中，由于信道状态信息是随着时间的变化而变化，CSI报告体现了信道状态，具有时效性。因此，当触发CSI上报的指示信息与反馈的CSI报告之间的时间间隔较长时，上报的CSI报告可能不是触发CSI上报时的信道状态报告，以致CSI报告丧失时效性。而CSI报告延时上限是保证CSI报告时效性的最大时限。由于第一定时器是在第一PSSCH、第一指示信息或CSI-RS的结束符号之后CSI的计算时间后被激活的。因此，为了保证CSI报告的时效性，定时器的激活时间可以小于或等于CSI报告延时上限与CSI的计算时间的差值。
作为一种可能的实施方式，该通信方法还可以包括：在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第一个符号，激活第二定时器，在第二定时器的激活时间内不监听PSCCH或SCI。
本申请实施例中，第一终端设备在接收到用于触发CSI上报的指示信息到生成CSI报告之间需要一段时间，而在这段时间内第一终端设备不会反馈CSI报告。但第二终端设备在这段时间内可能处于DRX的激活期，第二终端设备处于DRX的激活期时需要进行监听。因此，第二终端设备在这段时间内进行监听无法接收到反馈的CSI报告。为了避免上述问题，第二终端设备使用另一个定时器，使第二终端设备在另一个定时器的激活时间内不进行监听来接收反馈的CSI报告，从而可以进一步降低终端设备的功耗。
作为一种可能的实施方式，第一指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。
作为一种可能的实施方式，该通信方法还可以包括：当接收到来自第一终端设备的CSI报告，或者第一定时器超时时，确定第一定时器失效。
本申请实施例中，当第二终端设备接收到来自第一终端设备的CSI报告时，表明这个定时 器的作用已经完成，第一定时器失效，以便第二终端设备不会为了接收来自第一终端设备的CSI报告而继续监听，从而可以降低终端设备的功耗。当定时器超时时，表明第一终端设备反馈CSI报告的几率较小，或者即使后面能够接收到第一终端设备反馈的CSI报告，但由于CSI报告丧失了时效性，接收CSI报告也没有多大的意义。因此，没有监听控制信令的必要，第一定时器失效，以便第二终端设备不会为了接收来自第一终端设备的CSI报告而继续监听，从而可以降低终端设备的功耗。
第二方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：接收来自第二终端设备的第一指示信息，激活第三定时器，在第三定时器的激活时间内向第二终端设备发送CSI报告。第一指示信息用于触发CSI的上报。
本申请实施例中，第一终端设备可以接收来自第二终端设备的用于触发CSI上报的指示信息，激活一个定时器，在这个定时器的激活时间内可以向第二终端设备发送CSI报告。可见，在SL中引入DRX之后，第一终端设备接收来自第二终端设备用于触发CSI上报的指示信息的情况下，可以激活一个定时器，从而可以解决由于NR SL引入DRX，以致终端设备处于DRX的休眠期而无法向第二终端设备发送CSI报告的技术问题。由于第一终端设备接收来自第二终端设备的触发CSI上报的信息的情况下，可以在一个定时器的激活时间内获取传输资源向第二终端设备发送CSI报告，因此，可以保证CSI报告传输的可靠性。
作为一种可能的实施方式，第一终端设备在第三定时器的激活时间内向第二终端设备发送CSI报告可以包括：在第三定时器的激活时间内，监听PSCCH或SCI，监听PSCCH或SCI用于确定第二PSSCH；向第二终端设备发送第二PSSCH，第二PSSCH包括CSI报告。
本申请实施例中，第一终端设备在第三定时器的激活时间内，可以监听PSCCH或SCI，以便在第一终端设备使用模式2确定SL传输资源的情况下，可以通过感知(sensing)或部分感知(partial sensing)的方式来确定用于发送CSI报告的资源，可以保证用于发送CSI的资源为空闲资源、可用资源或干扰较小的资源，可以降低对CSI报告传输的干扰，从而可以保证CSI报告传输的可靠性。
作为一种可能的实施方式，第一指示信息承载在第一PSSCH上。
作为一种可能的实施方式，第一PSSCH还可以包括CSI-RS。
本申请实施例中，第一终端设备除了接收到来自第二终端设备的用于触发CSI上报的指示信息之外，还可以一起接收到来自第二终端设备的CSI-RS，当需要生成CSI报告时，可以直接使用接收的CSI-RS，而不需要专门获取用于生成CSI报告的信息，可以减少第一终端设备的处理过程，从而可以保证CSI报告的时效性，更好的进行链路自适应的传输，降低第一终端设备的功耗。
作为一种可能的实施方式，第一终端设备激活第三定时器可以包括：在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第M个符号，激活第三定时器，M为大于或等于1的整数。
本申请实施例中，第一终端设备在第一PSSCH、第一指示信息或CSI-RS的结束符号后的符号激活第三定时器，而不是在开始接收第一PSSCH时就激活定时器。由于第一终端设备在开始接收第一PSSCH的时候还没有生成CSI报告，因此，不会发送CSI报告。可见，在第一PSSCH、第一指示信息或CSI-RS的结束符号后的符号激活第三定时器，可以减少第一终端设备监听控制信令的时间，从而可以在保证CSI报告传输可靠性的情况下降低终端设备的功耗。
作为一种可能的实施方式，第一终端设备激活第三定时器可以包括：在第一PSSCH、第 一指示信息或CSI-RS的所在时隙后的第M个时隙，激活第三定时器，M为大于或等于1的整数。
本申请实施例中，以M为1举例，第一终端设备在第一PSSCH、第一指示信息或CSI-RS的所在时隙后的第一个时隙激活第三定时器，而不是在接收第一PSSCH的结束符号后的第一个符号就激活定时器。由于第一终端设备在接收第一PSSCH后需要处理时间来生成CSI报告，因此，不能立刻发送CSI报告。因此，第一PSSCH的结束符号和第一PSSCH所在时隙的下一个时隙的起始符号的时间间隔内，第一终端设备可以处于非激活状态，在第一PSSCH、第一指示信息或CSI-RS的所在时隙后的第一个时隙激活第三定时器，可以减少第一终端设备监听控制信令的时间，从而可以在保证CSI报告传输可靠性的情况下降低终端设备的功耗。
作为一种可能的实施方式，第三定时器的激活时间根据CSI报告延时上限确定。
本申请实施例中，由于信道状态信息随着时间的变化而变化，因此，在触发CSI上报的指示信息与CSI报告的发送时间之间的时间间隔较长的情况下，CSI报告可能会丧失时效性。CSI报告延时上限是保证CSI报告时效性的最大时限，当发送CSI报告的时间超过CSI报告延时上限时，发送的CSI报告由于丧失时效性而没有意义。因此，为了保证CSI报告传输的可靠性，为了保证发送的CSI报告有时效性，且为了降低第一终端设备的功耗，定时器的激活时间要考虑到CSI报告延时上限。
作为一种可能的实施方式，第三定时器的激活时间小于或等于CSI报告延时上限。
本申请实施例中，由于信道状态信息随着时间的变化而变化，因此，在触发CSI上报的指示信息与CSI报告的发送时间之间的时间间隔较长的情况下，CSI报告可能会丧失时效性。CSI报告延时上限是保证CSI报告时效性的最大时限，当发送CSI报告的时间超过CSI报告延时上限时，发送的CSI报告由于丧失时效性而没有意义。因此，为了保证CSI报告传输的可靠性，为了保证发送的CSI报告有时效性，且为了降低第一终端设备的功耗，定时器的激活时间可以小于或等于CSI报告延时上限。
作为一种可能的实施方式，第一终端设备激活第三定时器可以包括：在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第N个符号，激活第三定时器，N为大于CSI的计算时间的整数。
本申请实施例中，第一终端设备在第一PSSCH、第一指示信息或CSI-RS的结束符号之后CSI的计算时间后激活第三定时器，而不是在开始接收第一PSSCH时激活定时器，也不是在接收完第一PSSCH、第一指示信息或CSI-RS后马上激活定时器。由于第一终端设备从接收到触发CSI上报的指示信息到生成CSI报告之间需要一段时间，这段时间为CSI的计算时间，第一终端设备在这段时间内不会发送CSI报告。因此，在过了这段时间之后再激活定时器，可以使第一终端设备在这段时间内不监听控制信令，可以进一步减少第一终端设备监听控制信令的时间，从而可以在保证CSI报告传输可靠性的情况下尽可能的降低终端设备的功耗。
作为一种可能的实施方式，第三定时器的激活时间根据CSI报告延时上限和CSI的计算时间确定。
本申请实施例中，由于信道状态信息随着时间的变化而变化，因此，在触发CSI上报的指示信息与发送CSI报告之间的时间间隔较长的情况下，发送的CSI报告可能会丧失时效性。因此，定时器的激活时间需要考虑CSI报告延时上限。由于定时器是在第一PSSCH、第一指示信息或CSI-RS的结束符号之后CSI的计算时间后激活第一定时器的，因此，定时器的激活时间也需要考虑CSI的计算时间。
作为一种可能的实施方式，第三定时器的激活时间小于或等于CSI报告延时上限与CSI的计算时间的差值。
本申请实施例中，由于信道状态信息随着时间的变化而变化，因此，在触发CSI上报的指示信息与发送CSI报告之间的时间间隔较长的情况下，发送的CSI报告可能会丧失时效性。由于定时器是在第一PSSCH、第一指示信息或CSI-RS的结束符号之后CSI的计算时间后激活第一定时器的，因此，为了保证CSI报告传输的可靠性，为了保证发送的CSI报告的时效性，且为了降低第一终端设备的功耗，定时器的激活时间可以小于或等于CSI报告延时上限与CSI的计算时间的差值。
作为一种可能的实施方式，该通信方法还可以包括：在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第一个符号，激活第四定时器，在第四定时器的激活时间内不监听PSCCH或SCI。
本申请实施例中，第一终端设备在接收到触发CSI上报的指示信息到生成CSI报告之间需要一段时间，第一终端设备在这段时间内不会发送CSI报告。但当第一终端设备在这段时间内处于DRX的激活期时，第一终端设备在这段时间内需要进行监听，因此，可以在这段时间内使用另一个定时器，以便第一终端设备在这另一个定时器的激活时间内可以不监听控制信令，从而可以进一步降低终端设备的功耗。
作为一种可能的实施方式，第一指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。
作为一种可能的实施方式，该通信方法还可以包括：当CSI报告发送完成时，确定第三定时器失效。
本申请实施例中，当第一终端设备发送完CSI报告时，表明这个定时器的作用已经完成，针对CSI上报的监听已经没有意义，因此，第三定时器失效，以便第一终端设备不会针对该CSI上报进行不必要的监听，从而可以降低终端设备的功耗。
作为一种可能的实施方式，该通信方法还可以包括：根据CSI-RS生成CSI报告。
本申请实施例中，第一终端设备可以直接使用接收的CSI-RS生成CSI报告，而不需要专门获取用于生成CSI报告的信息，可以减少处理过程，从而保证CSI报告的时效性，更好的进行链路自适应的传输，可以降低终端设备的功耗。
第三方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：接收来自第二终端设备的第二指示信息，第二指示信息用于触发CSI的上报；当第一终端设备处于DRX时，在CSI报告延时上限内向第二终端设备发送第三PSSCH，第三PSSCH包括CSI报告；当CSI报告延时上限与DRX的激活时间之间存在交集时，第三PSSCH的时域资源属于CSI报告延时上限与DRX的激活时间之间的交集。
本申请实施例中，第一终端设备在CSI报告延时上限内可以向第二终端设备发送CSI报告，可以保证CSI报告的时效性。此外，第一终端设备处于DRX时，当CSI报告延时上限与DRX的激活时间之间存在交集时，第一终端设备在CSI报告延时上限与DRX的激活时间的交集中发送CSI报告，在第一终端设备和第二终端设备的DRX对齐的时候，以便于第二终端设备接收CSI报告。可以保证CSI报告的成功传输以及链路自适应。
作为一种可能的实施方式，当CSI报告延时上限与DRX的激活时间之间不存在交集时，第三PSSCH的资源为通过随机选择确定的资源。
本申请实施例中，当CSI报告延时上限与DRX的激活时间之间不存在交集时，表明第一终端设备在CSI报告延时上限内均处于DRX的休眠期，第一终端设备无法使用感知或部分感 知的方式确定传输资源，由于无法获取感知结果则无法保证确定的传输资源的可靠性和干扰情况，因此，第一终端设备可以通过随机选择的方式确定用于发送CSI报告的资源，以便在第一终端设备处于DRX的休眠期的情况下，可以保证CSI报告的正常传输。此时随机选择的方式可以和感知或部分感知的方式不在一个资源池，避免终端设备传输数据的造成的干扰不同带来的不公平问题。
作为一种可能的实施方式，当CSI报告延时上限与DRX的激活时间之间存在交集时，第三PSSCH的资源为通过感知或部分感知确定的资源。
本申请实施例中，当CSI报告延时上限与DRX的激活时间之间存在交集时，第一终端设备可以通过感知或部分感知来确定传输资源，可以保证用于发送CSI的资源为空闲资源、可用资源或干扰较小的资源，可以减少对CSI报告传输的干扰，从而可以保证CSI报告传输的可靠性。
作为一种可能的实施方式，当CSI报告延时上限与DRX的激活时间之间存在交集，且第二比例大于第七阈值时，第三PSSCH的资源为通过感知或部分感知确定的资源，第二比例为DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。
本申请实施例中，当CSI报告延时上限与DRX的激活时间之间存在交集，且第一比例大于第七阈值时，表示感知结果可以信任，由于感知结果变少带来的干扰是有限的，可以使用感知方式确定资源。
作为一种可能的实施方式，当CSI报告延时上限与DRX的激活时间之间存在交集，且第二比例小于或等于第七阈值时，第三PSSCH的资源为通过随机选择确定的资源，第二比例为DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。
本申请实施例中，当CSI报告延时上限与DRX的激活时间之间存在交集，且第一比例小于或等于第七阈值时，表示通过感知方式确定的结果过少以致无法保证通过感知确定的资源的可靠性，可以使用随机选择方式确定资源。
作为一种可能的实施方式，第二指示信息承载在第四PSSCH。
本申请实施例中，第二指示信息是通过物理侧行共享信道进行传输的。
作为一种可能的实施方式，第四PSSCH还可以包括CSI-RS。
本申请实施例中，第一终端设备除了接收到来自第二终端设备的用于触发CSI上报的指示信息之外，还一起接收到来自第二终端设备的CSI-RS。在需要生成CSI报告的情况下，可以直接使用接收的CSI-RS，而不需要专门获取用于生成CSI报告的信息，可以减少信息获取过程，从而可以保证CSI报告的时效性，以便可以更好的进行链路自适应的传输，可以降低终端设备的功耗。
作为一种可能的实施方式，该通信方法还可以包括：根据CSI-RS生成CSI报告。
本申请实施例中，第一终端设备可以直接使用接收的CSI-RS生成CSI报告，而不需要专门获取用于生成CSI报告的信息，可以减少信息获取过程，从而保证CSI报告的时效性，更好的进行链路自适应的传输，可以降低终端设备的功耗。
作为一种可能的实施方式，第二指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。
第四方面公开一种通信方法，该通信方法可以应用于第二终端设备，也可以应用于第二终端设备中的模块(例如，芯片)，以下以第二终端设备为例进行说明。该通信方法可以包括：向第一终端设备发送CSI报告延时上限，CSI报告延时上限大于DRX的休眠时间与CSI的 计算时间之和。
本申请实施例中，由于信道状态信息随着时间的变化而变化，CSI报告体现了信道状态，具有时效性。因此，第一终端设备接收到触发CSI上报的信息与上报CSI报告之间的时间间隔不能太长，太长的话CSI报告可能会丧失时效性。CSI报告延时上限为能够保证CSI报告时效性的最大时间。第二终端设备可以向第一终端设备配置CSI报告延时上限，由于第一终端设备生成CSI报告需要CSI的计算时间，而第一终端设备在DRX的休眠时间和生成CSI报告的过程中无法向第二终端设备发送CSI报告，因此，第二终端设备向第一终端设备配置的CSI报告延时上限可以大于DRX的休眠时间与CSI的计算时间之和，以便可以避免第一终端设备无法通过感知或部分感知的方式确定的资源发送CSI报告的情况，可以保证第一终端设备有足够的时间以及较好的传输资源发送CSI报告，从而可以提高CSI报告传输的可靠性。
第五方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：接收来自第二终端设备的CSI报告延时上限，CSI报告延时上限大于DRX的休眠时间与CSI的计算时间之和。
本申请实施例中，由于信道状态信息会随着时间的变化而变化，CSI报告体现了信道状态，具有时效性。因此，第一终端设备接收到触发CSI上报的信息与发送CSI报告之间的时间间隔不能太长，太长的话CSI报告可能会丧失时效性。CSI报告延时上限为能够保证CSI报告时效性的最大时间。第一终端设备可以接收第二终端设备配置的CSI报告延时上限，如果第一终端设备接收到触发CSI上报的指示信息时处于DRX的激活期，而此时距离DRX的休眠期之间的时间间隔小于或等于CSI的计算时间，由于第一终端设备生成CSI报告的时间需要CSI的计算时间，因此，第一终端设备在这个DRX周期的激活期内而无法生成CSI报告，当生成或准备好CSI报告可以发送时第一终端设备已经处于DRX的休眠期，第一终端设备无法通过感知或部分感知的方式确定传输资源，需要等到下一个DRX周期的激活期。当等到下一个DRX的激活期时，如果距离接收到触发CSI上报的指示信息的时间已经大于或等于CSI报告延时上限，则CSI报告丧失了时效性，上报将没有意义。因此，配置的CSI报告延时上限可以大于DRX的休眠时间与CSI的计算时间之和，以便可以避免第一终端设备无法通过感知或部分感知确定的资源发送CSI报告的情况，可以保证第一终端设备有足够的时间以及较好的传输资源发送CSI报告，从而可以提高CSI报告传输的可靠性。
第六方面公开一种通信方法，该通信方法可以应用于第二终端设备，也可以应用于第二终端设备中的模块(例如，芯片)，以下以第二终端设备为例进行说明。该通信方法可以包括：向第一终端设备发送第一时长，第一时长大于或等于CSI报告延时上限或CSI的计算时间，第一时长为非激活定时器的时长。
本申请实施例中，第二终端设备可以向第一终端设备配置非激活定时器的时长，这个时长可以大于或等于CSI报告延时上限或CSI的计算时间，以便第二终端设备向第一终端设备发送一个用于触发CSI上报的指示信息之后，第一终端设备能够在非激活定时器的激活时间内可以通过感知或部分感知的方式确定上报CSI报告的资源，以及第一终端设备有足够的时间可以生成CSI报告，从而可以保证CSI报告传输的可靠性。
作为一种可能的实施方式，第二终端设备向第一终端设备发送第一时长可以包括：当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于CSI的计算时间时，向第 一终端设备发送第一时长。
本申请实施例中，当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于CSI的计算时间时，第一终端设备接收到用于触发CSI上报的信息之后，当准备好或生成CSI报告时，第一终端设备可能处于DRX的休眠期，以致第一终端设备无法根据感知或部分感知的方式确定传输资源，或者由于感知的时间变短以致确定的传输资源发生冲突的概率增加，从而无法上报CSI报告，或者无法保证CSI报告传输的可靠性。因此，当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于CSI的计算时间时，第二终端设备可以为第一终端设备配置非激活定时器的时长，这个时长大于或等于CSI报告延时上限或CSI的计算时间，以便第一终端设备接收到来自第二终端设备用于触发CSI上报的指示信息之后，能够在非激活定时器的激活时间内可以通过感知或部分感知的方式确定上报CSI报告的资源，以及第一终端设备有足够的时间生成CSI报告，从而可以保证CSI报告传输的可靠性。
第七方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：接收来自第二终端设备的第一时长，第一时长大于或等于CSI报告延时上限或CSI的计算时间，第一时长为非激活定时器的时长。
本申请实施例中，第一终端设备在DRX的激活期接收到触发CSI上报的信息之后，如果这个DRX周期的激活期内无法准备好(即生成)或刚好准备好CSI报告，则在第一终端设备准备好CSI报告准备发送时，第一终端设备处于DRX的休眠期，以致第一终端设备无法根据感知或部分感知的方式确定传输资源，或者由于感知的时间变短以致确定的传输资源冲突的概率增加，从而无法上报CSI报告，或者无法保证CSI报告传输的可靠性，需要等到下一个DRX周期的激活期再发送CSI报告，而这样不仅延时较大，而且如果等待到下一个DRX周期的激活期时距离接收到触发CSI上报的指示信息的时间等于或大于CSI报告延时上限，则CSI报告由于丧失时效性而没有必要进行上报。因此，第一终端设备可以接收第二终端设备配置的非激活定时器的时长，这个时长可以大于或等于CSI报告延时上限或CSI的计算时间。第一终端设备接收到触发CSI上报的指示信息之后可以激活非激活定时器，在非激活定时器的激活时间内第一终端设备可以通过感知或部分感知的方式确定用于传输CSI报告的资源，以及通过确定的资源向第二终端设备发送CSI报告。此外，为了保证第一终端设备有足够的时间，这个时长可以大于或等于CSI报告延时上限或CSI的计算时间。可见，可以提高CSI报告传输的可靠性。
作为一种可能的实施方式，第一终端设备接收来自第二终端设备的第一时长可以包括：当CSI报告延时上限与第一终端设备DRX的周期的激活时间之间的重叠时间小于CSI的计算时间时，接收来自第二终端设备的第一时长。
本申请实施例中，当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于CSI的计算时间时，第一终端设备接收到用于触发CSI上报的信息之后，当准备好CSI报告时，第一终端设备将处于DRX的休眠期，以致第一终端设备无法根据感知或部分感知的方式确定传输资源，或者由于感知的时间变短以致确定的传输资源冲突的概率增加，从而无法上报CSI报告，或者无法保证CSI报告传输的可靠性，降低了CSI报告的时效性。因此，当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于CSI的计算时间时，第一终端设备可以接收到第二终端设备配置的非激活定时器的时长，这个时长大于或等于CSI报告延时上限或CSI的计算时间，以便第一终端设备接收到来自第二终端设备用于触发CSI上报的指示信息之后，能够在非激活定时器的激活时间内可以通过感知或部分感知的方式确定上报 CSI报告的资源，以及第一终端设备有足够的时间生成CSI报告，从而可以保证CSI报告传输的可靠性。
第八方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：接收来自第二终端设备的第三指示信息，第三指示信息用于触发CSI的上报；当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度大于或等于第一时间时，向第二终端设备发送CSI报告。
本申请实施例中，第一终端设备接收到来自第二终端设备的用于触发CSI上报的信息之后，可以先判断CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间是否大于或等于(或者大于)第一时间，当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间大于或等于(或者大于)第一时间时，表明第一终端设备可以在这个DRX周期的激活期内生成CSI报告以及通过感知或部分感知的方式确定用于传输CSI报告的资源，可以向第二终端设备发送CSI报告，可以提高CSI报告传输的可靠性。
作为一种可能的实施方式，第一时间可以为CSI的计算时间、第一阈值或CSI报告延时上限的第一比例。
本申请实施例中，考虑了CSI的计算时间，可以保证第一终端设备有足够的时间生成CSI报告。第一阈值和第一比例可以是网络设备配置的，也可以是预配置的，也可以是第一终端设备自适应确定的，也可以是第二终端设备配置的。但为了保证第一终端设备有足够的时间生成CSI报告，第一阈值和CSI报告延时上限的第一比例要大于或等于CSI的计算时间。
作为一种可能的实施方式，该通信方法还可以包括：当CSI报告延时上限与DRX的激活时间之间的重叠长度小于第一时间时，确定不上报CSI报告，或者切换DRX的周期，切换后的DRX的激活时间与CSI报告延时上限之间的重叠长度大于或等于第一时间。
本申请实施例中，当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于第一时间时，表明第一终端设备在这个DRX周期的激活期内无法生成CSI报告，可以不向第二终端设备发送CSI报告，可以减少不必要的处理，从而可以降低终端设备的功耗。也可以调整DRX的周期，使调整后的DRX的激活时间与CSI报告延时上限之间的重叠长度大于或等于第一时间，以便第一终端设备在调整后的DRX周期的激活期内可以生成CSI报告以及可以通过感知或部分感知的方式确定用于传输CSI报告的资源，可以向第二终端设备发送CSI报告，从而可以提高CSI报告传输的可靠性。
作为一种可能的实施方式，第一终端设备接收来自第二终端设备的第三指示信息可以包括：接收来自第二终端设备的第三指示信息和第三指示信息的优先级的值；第一终端设备切换DRX的周期可以包括：当该优先级的值小于第二阈值时，切换DRX的周期。
本申请实施例中，第一终端设备接收到用于触发CSI上报的指示信息的同时，还可以一起接收到这个指示信息的优先级的值，当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于第一时间时，可以先判断这个指示信息的优先级的值是否小于第二阈值。在判断出这个指示信息的优先级的值小于第二阈值的情况下，表明这个CSI报告比较重要，为了保证这个CSI报告的正常传输，可以调整DRX的周期，从而可以保证重要CSI报告传输的可靠性。其中，优先级的值越小对应的优先级的级别越高。
作为一种可能的实施方式，第三指示信息承载在第五PSSCH。
作为一种可能的实施方式，第五PSSCH还可以包括CSI-RS。
本申请实施例中，第一终端设备除了接收到来自第二终端设备的用于触发CSI上报的指示信息之外，还一起接收到来自第二终端设备的CSI-RS，以便在第一终端设备有需要的情况下，可以根据CSI-RS生成CSI报告，而不需要专门获取用于生成CSI报告的信息，可以减少处理过程，从而保证CSI报告的时效性，更好的进行链路自适应的传输，可以降低终端设备的功耗。
作为一种可能的实施方式，该通信方法还可以包括：根据CSI-RS生成CSI报告。
本申请实施例中，第一终端设备可以直接根据接收的CSI-RS生成CSI报告，而不需要专门获取用于生成CSI报告的信息，可以减少处理过程，从而保证CSI报告的时效性，更好的进行链路自适应的传输，可以降低终端设备的功耗。
作为一种可能的实施方式，第三指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。
第九方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：接收来自第二终端设备的第四指示信息，第四指示信息用于触发CSI的上报；当CSI报告延时上限与第一终端设备DRX的激活时间的重叠长度小于第一时间时，切换DRX的周期，切换后的DRX的激活时间与CSI报告延时上限之间的重叠长度大于或等于第一时间。
本申请实施例中，第一终端设备接收到来自第二终端设备的用于触发CSI上报的信息之后，可以先判断CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间是否小于(或者小于或等于)第一时间，当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于(或者小于或等于)第一时间时，表明第一终端设备在这个DRX周期的激活期内无法生成CSI报告，可以调整DRX的周期，使调整后的DRX的激活时间与CSI报告延时上限之间的重叠长度大于或等于第一时间，以便第一终端设备在调整后的DRX周期的激活期内可以生成CSI报告以及可以通过感知或部分感知的方式确定用于传输CSI报告的资源，可以向第二终端设备发送CSI报告，从而可以提高CSI报告传输的可靠性。
作为一种可能的实施方式，第一时间为CSI的计算时间、第一阈值或所述CSI报告延时上限的第一比例。
本申请实施例中，考虑了CSI的计算时间，可以保证第一终端设备有足够的时间生成CSI报告。第一阈值和第一比例可以是网络设备配置的，也可以是预配置的，也可以是第一终端设备自适应确定的，也可以是第二终端设备配置的。但为了保证第一终端设备有足够的时间生成CSI报告，第一阈值和CSI报告延时上限的第一比例要大于或等于CSI的计算时间。
作为一种可能的实施方式，第一终端设备接收来自第二终端设备的第四指示信息可以包括：接收来自第二终端设备的第四指示信息和第四指示信息的优先级的值；第一终端设备切换DRX的周期可以包括：当该优先级的值小于第三阈值时，切换DRX的周期。
本申请实施例中，第一终端设备接收到用于触发CSI上报的指示信息的同时，还可以一起接收到这个指示信息的优先级的值，当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于第一时间时，可以先判断这个指示信息的优先级的值是否小于第三阈值。在判断出这个指示信息的优先级的值小于第三阈值的情况下，表明这个CSI报告比较重要，为了保证这个CSI报告的正常传输，可以调整DRX的周期，从而可以保证重要CSI报告传输的可靠性。其中，优先级的值越小对应的优先级的级别越高。
第十方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一 终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：接收来自第二终端设备的数据包和数据包的优先级的值；当优先级的值小于第四阈值时，去使能DRX。
本申请实施例中，第一终端设备接收到来自第二终端设备的数据包和数据包的优先级的值之后，可以先判断这个优先级的值是否小于第四阈值。在判断出这个优先级的值小于第四阈值时，表明该数据包对应的业务比较重要，可以去使能DRX。由于在业务重要的情况下，第一终端设备处于DRX会存在无法接收数据的风险，因此，可以去使能DRX，以便可以保证重要业务传输的可靠性。其中，优先级的值越小对应的优先级的级别越高。
第十一方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：接收来自第二终端设备的数据包和数据包的优先级的值；根据优先级的值调整DRX的周期。
本申请实施例中，第一终端设备接收到来自第二终端设备的数据包和数据包的优先级之后，可以根据优先级的值调整DRX的周期。例如，在数据包的优先级的值较低的情况下，可以增加DRX的周期或DRX的周期的激活时间，以便可以保证数据包对应业务传输的可靠性。再例如，在数据包的优先级的值较高的情况下，可以减少DRX的周期或DRX的周期的激活时间，以便可以减少第一终端设备处于激活期的时间，从而可以降低终端设备的功耗。其中，优先级的值越小对应的优先级的级别越高。
第十二方面公开一种通信方法，该通信方法可以应用于第一终端设备，也可以应用于第一终端设备中的模块(例如，芯片)，以下以第一终端设备为例进行说明。该通信方法可以包括：当第一终端设备处于DRX时，根据第一比例确定资源选择方式，第一比例为DRX的激活时间和感知窗口的重叠时间与感知窗口的比例；当第一比例大于第五阈值时，资源选择方式为感知方式，当第一比例小于或等于第五阈值，资源选择方式为随机选择方式。
本申请实施例中，当第一终端设备处于DRX时，第一终端设备要发送数据时，会被触发进行资源选择。由于第一终端设备处于DRX，并不能时刻处于接收状态，因此，当DRX的激活时间和感知窗口的重叠时间与感知窗口的比例小于1时，第一终端设备在感知窗口的感知的结果要少于没有进入DRX的终端设备，以致根据该感知结果确定的资源发生资源冲突的概率较大，对其他终端设备产生干扰的概率较大。当DRX激活时间和感知窗口的重叠时间与感知窗口的比例大于第五阈值时，表示感知结果可以信任，由于感知结果变少带来的干扰是有限的，可以使用感知方式确定资源。当DRX激活时间和感知窗口的重叠时间与感知窗口的比例小于或等于第五阈值时，表示通过感知方式确定的结果过少以致无法保证通过感知确定的资源的可靠性，可以使用随机选择方式确定资源。
作为一种可能的实现方式，感知方式为感知或部分感知。
本申请实施例中，感知方式可以为感知，也可以为部分感知。感知窗口是连续的一段时间。部分感知窗口可以是连续的一段时间，也可以是非连续的一些时隙的集合。第一终端设备处于DRX，会导致感知或部分感知的感知结果减少，因此，根据该感知结果确定的资源发生资源冲突的概率增加，对其他终端设备产生干扰的概率增加。
作为一种可能的实现方式，随时选择方式使用第一资源池，感知方式使用第二资源池，第一资源池与第二资源池不同。
本申请实施例中，随时选择方式有专有的资源池，不与进行感知方式共享资源池。
作为一种可能的实现方式，第五阈值由网络设备配置。
本申请实施例中，第五阈值可以网络设备配置的。在网络设备配置了第五阈值的情况下，第一终端设备可以根据第五阈值来确定资源选择方式，在网络设备没有配置第五阈值的情况下，第一终端设备使用感知方式确定传输资源。
第十三方面公开一种通信装置，该通信装置可以为第二终端设备，也可以为第二终端设备中的模块(例如，芯片)，该通信装置可以包括：
发送单元，用于向第一终端设备发送第一指示信息，所述第一指示信息用于触发CSI的上报；
激活单元，用于激活第一定时器；
监听单元，用于在所述第一定时器的激活时间内，监听PSCCH或者SCI。
作为一种可能的实施方式，所述监听PSCCH或者SCI用于接收来自所述第一终端设备的CSI报告。
作为一种可能的实施方式，所述第一指示信息承载在第一PSSCH上。
作为一种可能的实施方式，所述第一PSSCH还包括CSI-RS。
作为一种可能的实施方式，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第M个符号，激活第一定时器，所述M为大于或等于1的整数。
作为一种可能的实施方式，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的所在时隙后的第M个时隙，激活第一定时器，所述M为大于或等于1的整数。
作为一种可能的实施方式，所述第一定时器的激活时间根据CSI报告延时上限确定。
作为一种可能的实施方式，所述第一定时器的激活时间小于或等于CSI报告延时上限。
作为一种可能的实施方式，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第N个符号，激活第一定时器，所述N为大于CSI的计算时间的整数。
作为一种可能的实施方式，所述第一定时器的激活时间根据CSI报告延时上限和所述CSI的计算时间确定。
作为一种可能的实施方式，所述第一定时器的激活时间小于或等于CSI报告延时上限与所述CSI的计算时间的差值。
作为一种可能的实施方式，所述激活单元，还用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第一个符号，激活第二定时器，在所述第二定时器的激活时间内不监听PSCCH或者SCI。
作为一种可能的实施方式，所述第一指示信息包括第二级SCI，所述第二级SCI包括CSI请求字段，所述CSI请求字段用于触发CSI的上报。
作为一种可能的实施方式，该通信装置还可以包括：
确定单元，用于当接收到来自所述第一终端设备的CSI报告，或者所述第一定时器超时时，确定所述第一定时器失效。
第十四方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设 备中的模块(例如，芯片)，该通信装置可以包括：
接收单元，用于接收来自第二终端设备的第一指示信息，所述第一指示信息用于触发CSI的上报；
激活单元，用于激活第三定时器；
发送单元，用于在所述第三定时器的激活时间内向所述第二终端设备发送CSI报告。
作为一种可能的实施方式，所述发送单元具体用于：
在所述第三定时器的激活时间内，监听PSCCH或SCI，所述监听PSCCH或SCI用于确定第二PSSCH；
向所述第二终端设备发送所述第二PSSCH，所述第二PSSCH包括CSI报告。
作为一种可能的实施方式，所述第一指示信息承载在第一PSSCH上。
作为一种可能的实施方式，所述第一PSSCH还包括CSI-RS。
作为一种可能的实施方式，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第M个符号，激活第三定时器，所述M为大于或等于1的整数。
作为一种可能的实施方式，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的所在时隙后的第M个时隙，激活第三定时器，所述M为大于或等于1的整数。
作为一种可能的实施方式，所述第三定时器的激活时间根据CSI报告延时上限确定。
作为一种可能的实施方式，所述第三定时器的激活时间小于或等于CSI报告延时上限。
作为一种可能的实施方式，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第N个符号，激活第三定时器，所述N为大于CSI的计算时间的整数。
作为一种可能的实施方式，所述第三定时器的激活时间根据CSI报告延时上限和所述CSI的计算时间确定。
作为一种可能的实施方式，所述第三定时器的激活时间小于或等于CSI报告延时上限与所述CSI的计算时间的差值。
作为一种可能的实施方式，所述激活单元，还用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第一个符号，激活第四定时器，在所述第四定时器的激活时间内不监听PSCCH或SCI。
作为一种可能的实施方式，所述第一指示信息包括第二级SCI，所述第二级SCI包括CSI请求字段，所述CSI请求字段用于触发CSI的上报。
作为一种可能的实施方式，该通信装置还可以包括：
确定单元，用于当所述CSI报告发送完成时，确定所述第三定时器失效。
作为一种可能的实施方式，该通信装置还可以包括：
生成单元，用于根据所述CSI-RS生成CSI报告。
第十五方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设备中的模块(例如，芯片)，该通信装置可以包括：
接收单元，用于接收来自第二终端设备的第二指示信息，所述第二指示信息用于触发CSI的上报；
发送单元，用于当第一终端设备处于DRX时，在CSI报告延时上限内向所述第二终端设 备发送第三PSSCH，所述第三PSSCH包括CSI报告；
当所述CSI报告延时上限与所述DRX的激活时间之间存在交集时，所述第三PSSCH的时域资源属于所述CSI报告延时上限与所述DRX的激活时间之间的交集。
作为一种可能的实施方式，当所述CSI报告延时上限与所述DRX的激活时间之间不存在交集时，所述第三PSSCH的资源为通过随机选择确定的资源。
作为一种可能的实施方式，当所述CSI报告延时上限与所述DRX的激活时间之间存在交集时，所述第三PSSCH的资源为通过感知或部分感知确定的资源。
作为一种可能的实施方式，当所述CSI报告延时上限与所述DRX的激活时间之间存在交集，且第二比例大于第七阈值时，所述第三PSSCH的资源为通过感知或部分感知确定的资源，所述第二比例为所述DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。
作为一种可能的实施方式，当所述CSI报告延时上限与所述DRX的激活时间之间存在交集，且第二比例小于或等于第七阈值时，所述第三PSSCH的资源为通过随机选择确定的资源，所述第二比例为所述DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。
作为一种可能的实施方式，所述第二指示信息承载在第四PSSCH。
作为一种可能的实施方式，所述第四PSSCH还包括CSI-RS。
作为一种可能的实施方式，该通信装置还可以包括：
生成单元，用于根据所述CSI-RS生成CSI报告。
作为一种可能的实施方式，所述第二指示信息包括第二级SCI，所述第二级SCI包括CSI请求字段，所述CSI请求字段用于触发CSI的上报。
第十六方面公开一种通信装置，该通信装置可以为第二终端设备，也可以为第二终端设备中的模块(例如，芯片)，该通信装置可以包括：
发送单元，用于向第一终端设备发送CSI报告延时上限，所述CSI报告延时上限大于第一终端设备DRX的休眠时间与CSI的计算时间之和。
第十七方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设备中的模块(例如，芯片)，该通信装置可以包括：
接收单元，用于接收来自第二终端设备的CSI报告延时上限，所述CSI报告延时上限大于第一终端设备DRX的休眠时间与CSI的计算时间之和。
第十八方面公开一种通信装置，该通信装置可以为第二终端设备，也可以为第二终端设备中的模块(例如，芯片)，该通信装置可以包括：
发送单元，用于向第一终端设备发送第一时长，所述第一时长大于或等于CSI报告延时上限或CSI的计算时间，所述第一时长为非激活定时器的时长。
作为一种可能的实施方式，所述发送单元，具体用于当所述CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于CSI的计算时间时，向所述第一终端设备发送第一时长。
第十九方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设备中的模块(例如，芯片)，该通信装置可以包括：
接收单元，用于接收来自第二终端设备的第一时长，所述第一时长大于或等于CSI报告延时上限或CSI的计算时间，所述第一时长为所述非激活定时器的时长。
作为一种可能的实施方式，所述接收单元，具体用于当CSI报告延时上限与第一终端设备DRX的周期的激活时间之间的重叠时间小于CSI的计算时间时，接收来自第二终端设备的第一时长。
第二十方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设备中的模块(例如，芯片)，该通信装置可以包括：
接收单元，用于接收来自第二终端设备的第三指示信息，所述第三指示信息用于触发CSI的上报；
发送单元，用于当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度大于或等于第一时间时，向所述第二终端设备发送CSI报告。
作为一种可能的实施方式，所述第一时间为CSI的计算时间、第一阈值或所述CSI报告延时上限的第一比例。
作为一种可能的实施方式，该通信装置还可以包括：
处理单元，用于当所述CSI报告延时上限与所述激活时间之间的重叠长度小于所述第一时间时，确定不上报CSI报告，或者切换所述DRX的周期，切换后的DRX的激活时间与所述CSI报告延时上限之间的重叠长度大于或等于所述第一时间。
作为一种可能的实施方式，所述接收单元，具体用于接收来自第二终端设备的第三指示信息和所述第三指示信息的优先级的值；
所述处理单元切换所述DRX的周期包括：
当所述优先级的值小于第二阈值时，切换所述DRX的周期。
作为一种可能的实施方式，第三指示信息承载在第五PSSCH。
作为一种可能的实施方式，所述第五PSSCH还包括CSI-RS。
作为一种可能的实施方式，该通信装置还可以包括：
生成单元，用于根据所述CSI-RS生成所述CSI报告。
作为一种可能的实施方式，所述第三指示信息包括第二级SCI，所述第二级SCI包括CSI请求字段，所述CSI请求字段用于触发CSI的上报。
第二十一方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设备中的模块(例如，芯片)，该通信装置可以包括：
接收单元，用于接收来自第二终端设备的第四指示信息，所述第四指示信息用于触发CSI的上报；
切换单元，用于当CSI报告延时上限与第一终端设备DRX的激活时间的重叠长度小于第一时间时，切换所述DRX的周期，切换后的DRX的激活时间与所述CSI报告延时上限之间的重叠长度大于或等于所述第一时间。
作为一种可能的实施方式，所述第一时间为CSI的计算时间、第一阈值或所述CSI报告延时上限的第一比例。
作为一种可能的实施方式，所述接收单元，具体用于接收来自第二终端设备的第四指示信息和所述第四指示信息的优先级的值；
所述切换单元，具体用于当所述优先级的值小于第三阈值时，切换所述DRX的周期。
第二十二方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设备中的模块(例如，芯片)，该通信装置可以包括：
接收单元，用于接收来自第二终端设备的第一数据包和所述第一数据包的优先级的值；
去使能单元，用于当所述优先级的值小于第四阈值时，去使能DRX。
第二十三方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设备中的模块(例如，芯片)，该通信装置可以包括：
接收单元，用于接收来自第二终端设备的第二数据包和所述第二数据包的优先级的值；
调整单元，用于根据所述优先级的值调整DRX的周期。
第二十四方面公开一种通信装置，该通信装置可以为第一终端设备，也可以为第一终端设备中的模块(例如，芯片)，该通信装置可以包括：确定单元，用于当第一终端设备处于DRX时，根据第一比例确定资源选择方式，所述第一比例为所述DRX的激活时间和感知窗口的重叠时间与感知窗口的比例；当所述第一比例大于第五阈值时，所述资源选择方式为感知方式，当所述第一比例小于或等于所述第五阈值，所述资源选择方式为随机选择方式。
作为一种可能的实施方式，所述感知方式为感知或部分感知。
作为一种可能的实施方式，所述随时选择方式使用第一资源池，所述感知方式使用第二资源池，所述第一资源池与所述第二资源池不同。
作为一种可能的实施方式，所述第五阈值由网络设备配置。
第二十五方面公开一种通信装置，该通信装置可以为第二终端设备或者第二终端设备内的模块(例如，芯片)。该通信装置可以包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，当所述处理器执行所述存储器存储的计算机程序时，使得所述处理器执行第一方面或第一方面的任一实施方式公开的通信方法。
第二十六方面公开一种通信装置，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)。该通信装置可以包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，当所述处理器执行所述存储器存储的计算机程序时，使得所述处理器执行第二方面或第二方面的任一实施方式公开的通信方法。
第二十七方面公开一种通信装置，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)。该通信装置可以包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，当所述处理器执行所述存储器存储的计算机程序时，使得所述处理器执行第三方面或第三方面的任一实施方式公开的通信方法，或者使得所述处理器执行第八方面或第八方面的任一实施方式公开的通信方法，或者使得所述处理器执行第九方面或第九方面的任一实施方式公开的通信方法，或者使得所述处理器执行第十方面或第十方面的任一实施方式公开的通信方法，或者使得所述处理器执行第十一方面或第十一方面的任一实施方式公开的通信方法，或者使得所述处理器执行第十二方面或第十二方面的任一实施方式公开的通信方法。
第二十八方面公开一种通信装置，该通信装置可以为第二终端设备或者第二终端设备内的模块(例如，芯片)。该通信装置可以包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，当所述处理器执行所述存储器存储的计算机程序时， 使得所述处理器执行第四方面或第四方面的任一实施方式公开的通信方法。
第二十九方面公开一种通信装置，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)。该通信装置可以包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，当所述处理器执行所述存储器存储的计算机程序时，使得所述处理器执行第五方面或第五方面的任一实施方式公开的通信方法。
第三十方面公开一种通信装置，该通信装置可以为第二终端设备或者第二终端设备内的模块(例如，芯片)。该通信装置可以包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，当所述处理器执行所述存储器存储的计算机程序时，使得所述处理器执行第六方面或第六方面的任一实施方式公开的通信方法。
第三十一方面公开一种通信装置，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)。该通信装置可以包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，当所述处理器执行所述存储器存储的计算机程序时，使得所述处理器执行第七方面或第七方面的任一实施方式公开的通信方法。
第三十二方面公开一种通信***，该通信***包括第二十五方面的通信装置和第二十六方面的通信装置。
第三十三方面公开一种通信***，该通信***包括第二十八方面的通信装置和第二十九方面的通信装置。
第三十四方面公开一种通信***，该通信***包括第三十八方面的通信装置和第三十一方面的通信装置。
第三十五方面公开一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序或计算机指令，当该计算机程序或计算机指令运行时，实现如上述各方面公开的通信方法。
第三十六方面公开一种芯片，包括处理器，用于执行存储器中存储的程序，当程序被执行时，使得芯片执行上面的方法。
作为一种可能的实施方式，存储器位于芯片之外。
附图说明
图1是本申请实施例公开的一种5G NR Uu口的网络架构示意图；
图2是本申请实施例公开的一种DRX周期的示意图；
图3是本申请实施例公开的一种终端设备与终端设备之间进行通信的示意图；
图4是本申请公开的一种SL中的终端设备处于DRX时在CSI报告延时上限内上报CSI报告的示意图；
图5是本申请实施例公开的一种网络架构示意图；
图6是本申请实施例公开的一种V2X的网络架构图；
图7是本申请实施例公开的一种通信方法的流程示意图；
图8是本申请实施例公开的一种第一定时器激活的示意图；
图9是本申请实施例公开的另一种第一定时器激活的示意图；
图10是本申请实施例公开的一种第一定时器和第二定时器的示意图；
图11是本申请实施例公开的一种第三定时器和第四定时器的示意图；
图12是本申请实施例公开的另一种通信方法的流程示意图；
图13是本申请实施例公开的一种CSI报告延时上限与DRX的激活时间之间存在交集的示意图；
图14是本申请实施例公开的一种CSI报告延时上限与DRX的激活时间之间不存在交集的示意图；
图15是本申请实施例公开的又一种通信方法的流程示意图；
图16是本申请实施例公开的一种CSI报告延时上限、第一终端设备DRX的休眠时间和CSI的计算时间的示意图；
图17是本申请实施例公开的又一种通信方法的流程示意图；
图18是本申请实施例公开的一种CSI报告延时上限和CSI的计算时间的示意图；
图19是本申请实施例公开的又一种通信方法的流程示意图；
图20是本申请实施例公开的又一种通信方法的流程示意图；
图21是本申请实施例公开的又一种通信方法的流程示意图；
图22是本申请实施例公开的又一种通信方法的流程示意图；
图23是本申请实施例公开的又一种通信方法的流程示意图；
图24是本申请实施例公开的一种通信装置的结构示意图；
图25是本申请实施例公开的另一种通信装置的结构示意图；
图26是本申请实施例公开的又一种通信装置的结构示意图；
图27是本申请实施例公开的又一种通信装置的结构示意图；
图28是本申请实施例公开的又一种通信装置的结构示意图；
图29是本申请实施例公开的又一种通信装置的结构示意图；
图30是本申请实施例公开的又一种通信装置的结构示意图；
图31是本申请实施例公开的又一种通信装置的结构示意图；
图32是本申请实施例公开的又一种通信装置的结构示意图；
图33是本申请实施例公开的又一种通信装置的结构示意图；
图34是本申请实施例公开的又一种通信装置的结构示意图；
图35是本申请实施例公开的又一种通信装置的结构示意图；
图36是本申请实施例公开的又一种通信装置的结构示意图；
图37是本申请实施例公开的又一种通信装置的结构示意图；
图38是本申请实施例公开的一种感知窗口处于DRX的休眠期的示意图；
图39是本申请实施例公开的一种感知窗口处于DRX的激活期的示意图；
图40是本申请实施例公开的一种感知窗口与DRX的激活期有重叠的示意图；
图41是本申请实施例公开的另一种感知窗口与DRX的激活期有重叠的示意图。
具体实施方式
本申请实施例公开了一种通信方法、装置及计算机可读存储介质，用于保证CSI报告传输的可靠性。以下分别进行详细说明。
为了更好地理解本申请实施例，下面先对本申请实施例的应用场景进行描述。请参阅图1， 图1是本申请实施例公开的一种5G新无线(radio new，NR)Uu口的网络架构示意图。如图1所示，该网络架构可以包括接入网设备101和终端设备102。接入网设备101与终端设备102之间的通信包括下行通信和上行通信。上行通信即通过上行链路进行的通信，下行通信通过下行链路进行的通信。在下行通信中，接入网设备101通过PDCCH向终端设备102发送下行控制信令，以及通过物理下行共享信道(physical downlink shared channel，PDSCH)向终端设备102发送下行数据和寻呼。终端设备102通过PDCCH接收来自网络设备101的下行控制信令，以及通过PDSCH接收来自网络设备101的下行数据和寻呼。下行控制信令可以包括下行链路控制信息(downlink control information，DCI)。DCI可以包括解调译码相应PDSCH所需要的参数。
由于终端设备处于接收状态所需功耗较大，因此，5G NR中，为了降低终端设备的功耗，引入了DRX。请参阅图2，图2是本申请实施例公开的一种DRX周期(cycle)的示意图。如图2所示，DRX周期可以包括激活期和休眠期。激活期的时长可以称为激活时间，也可以称为持续(on duration)时间。休眠期的时长可以称为休眠时间。终端设备处于DRX的激活期时，终端设备可以监听PDCCH接收信息。终端设备处于DRX的休眠期时，终端设备不监听PDCCH。
接入网设备可以为终端设备配置DRX功能，终端设备可以根据该DRX功能监听PDCCH。在终端设备处于无线资源控制(radio resource control，RRC)连接态时，如果被配置了DRX功能，则终端设备对全部激活的服务小区可以根据DRX的规则进行非连续监听；如果未被配置DRX功能，则终端设备按照监听PDCCH的规则监听PDCCH。
接入网设备通过配置下述参数来控制终端设备的DRX：
DRX持续时间(drx-onDurationTimer)为一个DRX周期内开始的一段时间，即图2中激活期对应的激活时间。DRX持续时间可以为1/32ms(子毫秒(subMilliSeconds))的倍数。DRX持续时间也可以为ms(毫秒(milliSecond))。例如，ms1表示1ms，ms2表示2ms，以此类推。
DRX时隙偏移(drx-SlotOffset)为开启drx-onDurationTimer前的时延。DRX时隙偏移的取值以1/32ms为单位，0表示0ms，1表示1/32ms，2表示2/32ms，以此类推。
DRX非激活时间(drx-InactivityTimer)为检测到一个新上行链路(uplink，UL)或下行链路(downlink，DL)后，监听(monitor)PDCCH的持续时间。DRX非激活时间为1ms的整数倍。在RRC配置的参数中，ms0表示0ms，ms1表示1ms，ms2表示2ms，以此类推。
DRX重传DL(drx-RetransmissionDL)为对于每个DL混合自动重传请求(hybrid automatic repeat request，HARQ)进程，直到接收到一个DL重传的最大持续时间。DRX重传DL的取值为传输块(transport block，TB)被接收的部分带宽(bandwidth part，BWP)的时隙个数。其中，sl0对应0时隙，sl1对应1个时隙，以此类推。
DRX重传UL(drx-RetransmissionUL)为对于每个UL HARQ进程，直到接收到一个UL重传的最大持续时间。DRX重传UL的取值为TB被传输的BWP的时隙个数。其中，sl0对应0时隙，sl1对应1个时隙，以此类推。
DRX长周期起始时隙(drx-LongCycleStartOffset)表示长DRX周期(long DRX cycle)和DRX开始时隙(drx-StartOffset)。DRX开始时隙即DRX周期的开始子帧。长DRX周期以ms为单位，DRX开始时隙是1ms的整数倍。
DRX短周期(drx-ShortCycle)的取值为ms级。ms1表示1ms，ms2表示2ms，以此类推。DRX长周期的值应为DRX短周期的倍数。DRX短周期为可选地。
DRX短周期时间(drx-ShortCycleTimer)为终端设备遵循DRX短周期的持续时间。DRX 短周期时间的取值为DRX短周期的倍数。其中，DRX短周期时间取值为1对应drx-ShortCycle，DRX短周期时间取值为2对应2*drx-ShortCycle，以此类推。DRX短周期时间为可选地。
DRX HARQ往返时间(round trip time，RTT)时间DL(drx-HARQ-RTT-TimerDL)为针对每个DL HAEQ进程，终端设备期待一个HARQ重传的DL调度之前的最小持续时间。DRX HARQRTT时间DL用TB接收所在BWP的符号的数量来取值。
DRX HARQ RTT时间UL(drx-HARQ-RTT-TimerUL)为针对每个UL HAEQ进程，终端设备期待一个UL HARQ重传的调度之前的最小持续时间。用TB传输所在BWP的符号的数量来取值。
当一个DRX被配置时，激活时间可以包括drx-onDurationTimer、drx-InactivityTimer、drx-RetransmissionTimerDL或drx-RetransmissionTimerUL。
终端设备被配置DRX功能之后，如果在一个被配置的下行调度中一个媒体介入控制(media access control，MAC)协议数据单元(protocol data unit，PDU)被接收，则终端设备在携带DL HARQ反馈的相应传输结束后的第一个符号开始相应HARQ进程的drx-HARQ-RTT-TimerDL，停止相应HARQ进程的drx-RetransmissionTimerDL。如果在一个被配置的上行调度中一个MAC PDU被发送，则终端设备在相应物理上行共享信道(physical uplink share channel，PUSCH)传输的第一个重复结束后的第一个符号开始相应HARQ进程的drx-HARQ-RTT-TimerUL，停止相应HARQ进程的drx-RetransmissionTimerUL。如果一个drx-HARQ-RTT-TimerDL失效，且相应HARQ进程的数据未被成功译码，则终端设备在drx-HARQ-RTT-TimerDL失效后的第一个符号开始相应HARQ进程的drx-RetransmissionTimerDL。如果一个drx-HARQ-RTT-TimerUL失效，则终端设备在drx-HARQ-RTT-TimerUL失效后的第一个符号开始相应HARQ进程的drx-RetransmissionTimerUL。如果一个DRX命令MAC控制元素(control element，CE)或一个长DRX命令MAC CE被接收，则终端设备停止drx-onDurationTimer，以及停止drx-InactivityTimer。在drx-InactivityTimer失效或者一个DRX命令MAC CE被接收的情况下，如果短DRX周期被配置，则终端设备在DRX命令MAC CE接收后的第一个符号或者在drx-InactivityTimer失效后的第一个符号开启或重启drx-ShortCycleTimer，使用短DRX周期，否则使用长DRX周期。如果drx-ShortCycleTimer失效，则终端设备使用长DRX周期。如果一个长DRX命令MAC CE被接收，则终端设备停止drx-ShortCycleTimer，使用长DRX周期。如果短DRX周期被使用，且[(子帧数(subframe number，SFN)×10)+SFN]mod(drx-ShortCycle)＝(drx-StartOffset)mod(drx-ShortCycle)，或者如果使用长DRX周期，且[(SFN×10)+SFN]mod(drx-LongCycle)＝drx-StartOffset，则终端设备在一个子帧的开始drx-SlotOffset之后开启drx-onDurationTimer。如果终端设备处于DRX的激活期，则终端设备监听PDCCH。如果终端设备处于DRX的激活期，且PDDCH指示了一个DL传输，则终端设备在携带DL HARQ反馈的相应传输结束后的第一个符号开始相应HARQ进程的drx-HARQ-RTT-TimerDL，停止相应HARQ进程的drx-RetransmissionTimerDL。如果终端设备处于DRX的激活期，且PDCCH指示一个UL传输，则终端设备在相应PUSCH传输的第一个重复结束后的第一个符号开始相应HARQ进程的drx-HARQ-RTT-TimerUL，停止相应HARQ进程的drx-RetransmissionTimerUL。如果终端设备处于DRX的激活期，且PDCCH指示一个新的传输(DL或UL)，则终端设备在PDCCH接收后的第一个符号开启或重启drx-InactivityTimer。
接入网设备可以通过RRC层的参数配置来激活/去激活终端设备中的DRX。
请参阅图3，图3是本申请实施例公开的一种终端设备与终端设备之间进行通信的示意图。如图3所示，终端设备之间可以通过SL进行通信。终端设备之间通过PSSCH和PSCCH进行通信。PSCCH可以承载第一级SCI等控制信息，PSSCH可以承载第二级SCI、参考信号和数据等。
在NR车联网(vehicle to everything，V2X)中定义了两种资源分配模式。模式1：由接入网设备调度终端设备要使用的SL传输资源，即终端设备有发送数据的需求的情况下，终端设备需要向接入网设备请求资源，接入网设备根据终端设备的请求为其分配资源。模式2：终端设备在网络设备配置的SL资源池或者预配置的SL资源池中确定SL传输资源，即终端设备可以通过感知(sensing)方式确定SL传输资源，也即终端设备通过译码其他终端设备的SCI或者进行SL测量来获取其他终端设备资源占用的信息，基于资源池中的资源和其他终端设备占用的资源以及SL测量结果确定SL传输资源。其中，SL测量即基于译码SCI时相应SL解调参考信号(demodulation reference signal，DMRS)的参考信号接收功率(reference signal receiving power，RSRP)的值。资源池是时频资源的集合。终端设备在一个资源池中进行工作，即模式2下终端设备可以通过感知的方式去选择资源发送数据，和/或在该资源池中接收数据。
通过上述分析可知，NR Uu口中已引入DRX，但SL中并没有引入DRX。然而，由于Uu口为终端设备与接入网设备之间的通信，接入网设备不需要处于DRX，终端设备可以处于DRX。而SL中，发送终端设备与接收终端设备均可以处于DRX。此外，在NR Uu口中，终端设备处于DRX时，终端设备用于传输CSI报告的资源由接入网设备调度。而SL中，当终端设备处于DRX时，用于传输CSI报告的资源如何确定已成为一个亟待解决的技术问题。请参阅图4，图4是本申请公开的一种SL中的终端设备处于DRX时在CSI报告延时上限内上报CSI报告的示意图。如图4所示，终端设备在T1时刻接收到用于触发CSI上报的信息，可见，CSI报告延时上限的一部分处于DRX的激活期，CSI报告延时上限的另一部分处于DRX的休眠期，而第一终端设备在DRX的休眠期无法通过感知的方式确定用于上报CSI的资源。可见，在SL中引入DRX之后，终端设备无法使用现有的CSI报告上报的规则进行上报，因此，终端设备处于DRX时，如何进行CSI报告的上报已成为一个亟待解决的技术问题。由于终端设备处于DRX，在触发CSI上报后，可能会由于处于休眠状态而无法接收上报的CSI报告。如何接收CSI报告的上报也称为一个亟待解决的技术问题。
为了更好地理解本申请实施例公开的一种通信方法、装置及计算机可读存储介质，下面先对本申请实施例使用的网络架构进行描述。请参阅图5，图5是本申请实施例公开的一种网络架构示意图。如图5所示，该网络架构可以包括终端设备1和终端设备2。终端设备1与终端设备2之间可以通过SL进行通信。终端设备1和/或终端设备2可以作为发送端发送信息，也可以作为接收端接收信息。终端设备1和/或终端设备2可以处于DRX。
例如，请参阅图6，图6是本申请实施例公开的一种车联网(vehicle to everything，V2X)的网络架构图。如图6所示，V2X可以包括车与车(vehicle to vehicle，V2V)的通信、车与行人(vehicle to pedestrian，V2P)的通信、车与基础设施(vehicle to infrastructure，V2I)的通信、车与网络(vehicle to network，V2N)的通信。
应理解，终端设备1与终端设备2可以是同样的设备，也可以是不同的设备。
应理解，图6所示的网络架构只是对图5所示的网络设备的示例性说明，并不对其构成限定。
应理解，图6所示的网络架构只是示例性说明，并不对其构成限定。
终端设备，又可以称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、 移动终端(mobile terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备。终端设备可以为手持终端、笔记本电脑、用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handheld)、膝上型电脑(laptop computer)、无绳电话(cordless phone)或者无线本地环路(wireless local loop，WLL)台、机器类型通信(machine type communication，MTC)终端、可穿戴设备(例如智能手表、智能手环、计步器等)、车载设备(例如，汽车、自行车、电动车、飞机、船舶、火车、高铁等)、虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、智能家居设备(例如，冰箱、电视、空调、电表等)、智能机器人、车间设备、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端，或智慧家庭(smart home)中的无线终端、飞行设备(例如，智能机器人、热气球、无人机、飞机)或其他可以进行通信的设备。
基于上述网络架构，请参阅图7，图7是本申请实施例公开的一种通信方法的流程示意图。如图7所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
701、第二终端设备向第一终端设备发送第一指示信息。
相应地，第一终端设备接收来自第二终端设备的第一指示信息。
在第二终端设备有业务需求的情况下，第二终端设备可以向第一终端设备发送第一指示信息。第一指示信息用于触发CSI的上报，可以理解第一指示信息具有触发第一终端设备向第二终端设备上报CSI报告的功能。
在一种实现方式中，第一指示信息可以承载在第一PSSCH上，可以理解第一指示信息可以通过物理侧行共享信道进行传输。在一种情况下，第一指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。CSI请求字段的值可以为1，也可以为0，在此不加限定。在另一种情况下，第一PSSCH可以包括第二级SCI，第二级SCI可以包括CSI请求字段，第一指示信息可以为CSI请求字段。在又一种情况下，第一指示信息可以为第一PSSCH中的一个指示符。在又一种情况下，第一指示信息可以为第一PSSCH中的参考信号，参考信号可以为CSI-RS等。在又一种情况下，第一指示信息可以为第一PSSCH中的一个比特。例如，当这个比特为0或1时，用于触发CSI的上报。应理解，上述对第一指示信息的限定只是示例性的说明，并不对第一指示信息构成限定，第一指示信息可以为具有触发CSI上报功能的任何形式的信息、字段、比特、信令、消息等。
可选地，当第一指示信息承载在第一PSSCH上时，第一PSSCH还可以包括CSI-RS。
在另一种实现方式中，第一指示信息也可以承载在PSCCH上。
可选地，当第一指示信息承载在PSCCH上时，第二终端设备还可以向第一终端设备发送承载有CSI-RS的PSSCH。
702、第二终端设备激活第一定时器。
703、第二终端设备在第一定时器的激活时间内，监听PSCCH或SCI。
当第二终端设备处于DRX时，第二终端设备向第一终端设备发送第一指示信息之后，可以激活第一定时器。第一定时器可以是一个固定的定时器，这个定时器的时间可以是固定的，因此，激活第一定时器可以理解为启动第一定时器，也可以理解为让第一定时器开始计时。 第一定时器可以是一个固定的定时器，但这个定时器的时间可以根据需要设置，因此，当第一定时器的时间不是所需时间时，激活第一定时器可以理解为设置第一定时器的激活时间，以及启动第一定时器。第一定时器也可以是一个变动的定时器，因此，激活第一定时器可以理解为确定第一定时器，以及启动第一定时器。在确定的第一定时器的时间不是所需时间的情况下，可以先设置第一定时器的激活时间，之后再启动第一定时器。此外，当不存在定时器时，还需要先创建第一定时器。第一定时器启动时的时间可以为0，也可以为激活时间。当第一定时器启动时的时间为0时，第一定时器计时可以理解为随着时间的变化定时器的时间不断增加，直到定时器失效。当第一定时器启动时的时间为激活时间时，第一定时器计时可以理解为随着时间的变化定时器的时间不断减少，直到定时器失效。应理解，上述对第一定时器的说明只是示例性的，并不对第一定时器构成限定。定时器的激活时间可以理解为定时器能够计时、工作的最长时间。例如，一个5s的定时器，5s为这个定时器的激活时间，当这个定时器从0开始计时时，这个计时器计时到5s时，这个计时器将停止计时，也即这个计时器停止。要让这个计时器再次进行计时，需要重启这个计时器，或者使能这个定时器。
终端设备处于DRX，可以理解为终端设备被配置了DRX功能，也可以理解为终端设备使能了DRX，还可以理解为终端设备具有DRX功能，在此不加限定。
在一种实现方式中，第二终端设备可以在第一指示信息的结束符号后的第M个符号激活第一定时器，可以理解为在第一指示信息发送完后的第M个符号激活第一定时器，也可以理解为在发送第一指示信息最后一个符号后的第M个符号激活第一定时器。M为大于或等于1的整数。可见，第二终端设备可以在第一指示信息的结束符号后的第一个符号激活第一定时器，也可以在第一指示信息的结束符号后的第二个符号激活第一定时器，还可以在第一指示信息的结束符号后的第三个符号激活第一定时器。当M等于1时，第二终端设备可以在第一指示信息的结束符号后的第1个符号激活第一定时器，由于第一指示信息用于触发CSI的上报，第二终端设备在发送用于触发CSI上报的指示信息后即激活第一定时器，以便于接收CSI报告。提高了接收CSI报告的概率，保证链路自适应的正常工作，提高了***性能和***通信效率。请参阅图8，图8是本申请实施例公开的一种第一定时器激活的示意图。如图8所示，激活第一定时器的时间为T1，第一定时器失效的时间为T2，第二终端设备在第一定时器的工作时间内一直进行监听。
第二终端设备也可以在第一指示信息的所在时隙后的第M个时隙激活第一定时器，可以理解为在第一指示信息后的第M个时隙激活第一定时器，也可以理解为在第一指示信息发送完后的第M个时隙激活第一定时器，还可以理解为在发送第一指示信息的最后一个符号后的第M个时隙激活第一定时器，还可以理解为在第一指示信息的结束符号后的第M个时隙激活第一定时器。当M等于1时，第二终端设备可以在第一指示信息的所在时隙后的第1个时隙激活第一定时器，由于第一指示信息用于触发CSI的上报，第二终端设备在发送第一指示信息后的第一个时隙激活第一定时器，以便于接收CSI报告，在第一指示信息的结束符号到第一指示信息所在时隙后的第一个时隙的起始符号的时间间隔内，第二终端设备可以处理非激活时间。提高了***性能和***通信效率，更有利于第二终端设备的节电，避免不必要的功耗，终端设备实现更简单。
当第一指示信息承载在第一PSSCH上时，第二终端设备也可以在第一PSSCH的结束符号后的第M个符号激活第一定时器，可以理解为在第一PSSCH发送完后的第M个符号激活第一定时器，也可以理解为在发送第一PSSCH最后一个符号后的第M个符号激活第一定时器。当M等于1时，第二终端设备可以在第一PSSCH的结束符号后的第1个符号激活第一定时器，由 于PSSCH承载了用于触发CSI的上报的指示信息，第二终端设备在发送用于触发CSI上报的指示信息后即激活第一定时器，以便于接收CSI报告。提高了接收CSI报告的概率，保证链路自适应的正常工作，提高了***性能和***通信效率。第二终端设备在第一PSSCH的结束符号后的第M个符号激活第一定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第M个符号激活第一定时器的描述，在此不加赘述。
当第一指示信息承载在第一PSSCH上时，第二终端设备也可以在第一PSSCH的所在时隙后的第M个时隙激活第一定时器，可以理解为在第一PSSCH后的第M个时隙激活第一定时器，也可以理解为在第一PSSCH发送完后的第M个时隙激活第一定时器，还可以理解为在发送第一PSSCH最后一个符号后的第M个时隙激活第一定时器，还可以理解为在第一指示信息的结束符号后的第M个时隙激活第一定时器。第二终端设备在第一PSSCH的所在时隙后的第M个时隙激活第一定时器的描述，可以参考上面第二终端设备在第一指示信息的所在时隙后的第M个时隙激活第一定时器的描述，在此不加赘述。
当第一PSSCH包括CSI-RS时，第二终端设备也可以在CSI-RS的结束符号后的第M个符号激活第一定时器，可以理解为在CSI-RS发送完后的第M个符号激活第一定时器，也可以理解为在发送CSI-RS最后一个符号后的第M个符号激活第一定时器。当M等于1时，第二终端设备可以在CSI-RS的结束符号后的第1个符号激活第一定时器，由于CSI-RS可以用于生成CSI报告，并且CSI-RS的发送伴随着用于触发CSI上报的指示信息的发送，第二终端设备在发送用于触发CSI上报的指示信息后激活第一定时器，以便于接收CSI报告。提高了接收CSI报告的概率，保证链路自适应的正常工作，提高了***性能和***通信效率。第二终端设备在CSI-RS的结束符号后的第M个符号激活第一定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第M个符号激活第一定时器的描述，在此不加赘述。
当第一PSSCH包括CSI-RS时，第二终端设备也可以在CSI-RS的所在时隙后的第M个时隙激活第一定时器，可以理解为在CSI-RS后的第M个时隙激活第一定时器，也可以理解为在CSI-RS发送完后的第M个时隙激活第一定时器，还可以理解为在发送CSI-RS最后一个符号后的第M个时隙激活第一定时器，还可以理解为在发送CSI-RS的结束符号后的第M个时隙激活第一定时器。第二终端设备在CSI-RS的所在时隙(即结束时隙)后的第M个时隙激活第一定时器的描述，可以参考上面第二终端设备在第一指示信息的所在时隙后的第M个时隙激活第一定时器的描述，在此不加赘述。
之后第二终端设备可以在第一定时器的激活时间内监听PSCCH或SCI，监听PSCCH或SCI的目的是为了接收来自第一终端设备的CSI报告。第二终端设备在第一定时器的激活时间内，也可以接收来自第一终端设备的其它信息，还可以接收来自其它终端设备的信息，在此不加限定。可见，第二终端设备在第一定时器的激活时间内监听PSCCH或SCI是为了不会错过第一终端设备返回的CSI报告，可以进行链路自适应，从而可以提高链路质量和传输可靠性。监听可以理解为接收，也可以理解为检测，也可以理解为盲检。监听SCI可以理解为监听第一级SCI，也可以理解为监听第一级SCI和第二级SCI，也可以理解为监听第一级SCI和接收相应的第二级SCI。
由于信道状态信息会随着时间的变化而变化，因此，触发CSI上报与接收到CSI报告之间的时间间隔不能太长，太长的话CSI报告会丧失时效性。CSI报告延时上限是保证CSI报告时效性的最大时限。由于超过这个时限之后，表明信息延时较大，CSI报告将丧失时效性，第一终端设备可能不会返回CSI。因此，为了减少第二终端设备的监听时间，以便降低第二终端设备的功耗，第一定时器的激活时间不能太长。可见，第一定时器的激活时间可以根据CSI报告 延时上限确定，可以理解为第一定时器的激活时间的确定需要考虑CSI报告延时上限。例如，第一定时器的激活时间可以小于或等于CSI报告延时上限。为了不会错过第一终端设备返回的CSI报告，第一定时器的激活时间与CSI报告延时上限之间的差值越小越好，但差值越小的话功耗也越大。此外，由于第一终端设备接收到触发CSI上报的第一指示信息之后，先需要生成CSI报告，而生成CSI报告需要一段时间，在这段时间内第二终端设备不会接收到来自第一终端设备的CSI报告。因此，第二终端设备为了不错过第一终端设备返回的CSI报告，第一定时器的激活时间也不能太短。可见，第一定时器的激活时间的确定也可以考虑CSI的计算时间，例如，第一定时器的激活时间可以大于或等于CSI的计算时间。因此，第一定时器的激活时间最好大于或等于CSI的计算时间，且小于或等于CSI报告延时上限。CSI报告延时上限可以是通过PC5RRC配置的。CSI的计算时间可以是第一终端设备上报的。CSI的计算时间可以是第一终端设备根据第一终端设备的能力确定的。例如，可以有多个CSI的计算时间，第一终端设备可以根据自身的能力信息从这多个CSI的计算时间中选择一个与之对应的CSI的计算时间。上述对CSI的计算时间的确定方式只是示例性的说明，并不构成限定，也可以通过其它方式进行确定，在此不加限定。
可以理解，上述对根据CSI报告延时上限确定第一定时器的激活时间的举例只是示例性说明，并不对其构成限定。
在另一种实现方式中，第二终端设备可以在第一指示信息的结束符号后的第N个符号，激活第一定时器，可以理解为在第一指示信息发送完后的第N个符号激活第一定时器，也可以理解为在发送第一指示信息最后一个符号后的第N个符号激活第一定时器。N为大于CSI的计算时间的整数。CSI的计算时间的单位可以为符号，也可以以绝对时间毫秒、秒等为单位，也可以通过其它衡量时间的方式确定，在此不加限定。可见，第二终端设备可以在第一指示信息的结束符号后经过CSI的计算时间后的第1个符号激活第一定时器，也可以在第一指示信息的结束符号后经过CSI的计算时间后的第2个符号激活第一定时器，还可以在第一指示信息的结束符号后经过CSI的计算时间后的第3个符号激活第一定时器。例如，CSI的计算时间为4个符号，在第一指示信息的结束符号后经过CSI的计算时间后的第2个符号激活第一定时器，可以理解为在第一指示信息的结束符号后的第6个符号激活第一定时器。由于第一终端设备在第一指示信息结束符号后的第CSI的计算时间个符号可能已经生成了CSI报告，第一终端设备在第一指示信息结束符号经过第CSI的计算时间后的第1个符号可以向第二终端设备返回CSI报告，因此，第二终端设备为了不错过第一终端设备返回的CSI报告，第二终端设备在第一指示信息的结束符号后经过CSI的计算时间后的1个符号激活第一定时器的效果最好。由于在接收到用于触发CSI上报的指示信息后，第一终端设备需要时间来生成CSI报告，CSI计算时间为接收到触发CSI上报的信令信息后用于生成CSI报告的最短时间，因为在这段时间内第二终端不会接收到CSI报告，为此处于激活状态是没有意义并且不利于节能的。请参阅图9，图9是本申请实施例公开的另一种第一定时器激活的示意图。如图9所示，T3为第二终端设备触发CSI上报的时间，T4为激活第一定时器的时间，T5为第一定时器失效的时间。可见，第一定时器是在触发CSI上报后的CSI的计算时间后激活的。
第二终端设备也可以在第一符号后的第L个时隙激活第一定时器。L为大于或等于1的整数。第一符号可以为发送第一指示信息最后一个符号后的第K个符号，可以理解为第一指示信息结束符号后的第K个符号。K为计算CSI所用符号数，即用于计算CSI的符号数。例如，假设L为1，在计算CSI所用符号为一个时隙包括的符号数时，在第一符号所在时隙后的第L个时隙激活第一定时器，可以理解为在第一指示信息的结束符号后的第2个时隙激活第一定时器。 由于第一终端设备在第一指示信息结束符号后的K个符号已经生成了CSI报告，第一终端设备可以在第一符号后的第1个时隙向第二终端设备返回CSI报告，因此，第二终端设备为了不错过第一终端设备返回的CSI报告，可以在第一符号后的第1个时隙激活第一定时器，可以减少第二终端设备的监听时间，从而可以降低第二终端设备的功耗。
当第一指示信息承载在第一PSSCH上时，第二终端设备也可以在第一PSSCH的结束符号后的第N个符号激活第一定时器，可以理解为在第一PSSCH发送完后的第N个符号激活第一定时器，也可以理解为在发送第一PSSCH最后一个符号后的第N个符号激活第一定时器。第二终端设备在第一PSSCH的结束符号后的第N个符号激活第一定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第N个符号激活第一定时器的描述，在此不加赘述。
当第一指示信息承载在第一PSSCH上时，第一符号可以为发送第一PSSCH最后一个符号后的第K个符号，即第一PSSCH结束符号后的第K个符号。详细描述可以参考第一符号为发送第一指示信息最后一个符号后的第K个符号对应的相关描述，在此不加赘述。
当第一PSSCH包括CSI-RS时，第二终端设备也可以在CSI-RS的结束符号后的第N个符号激活第一定时器，可以理解为在CSI-RS发送完后的第N个符号激活第一定时器，也可以理解为在发送CSI-RS最后一个符号后的第N个符号激活第一定时器。第二终端设备在CSI-RS的结束符号后的第N个符号激活第一定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第N个符号激活第一定时器的描述，在此不加赘述。
当第一PSSCH包括CSI-RS时，第一符号可以为发送CSI-RS最后一个符号后的第K个符号，即CSI-RS结束符号后的第K个符号。详细描述可以参考第一符号为发送第一指示信息最后一个符号后的第K个符号对应的相关描述，在此不加赘述。
由于第一终端设备接收到触发CSI上报的第一指示信息之后，先需要生成CSI报告，而生成CSI报告需要一段时间，在这段时间内第一终端设备不会发送CSI报告。相应地，第二终端设备也不会接收到CSI报告。此外，由于第一定时器可以是在第一指示信息、第一PSSCH或CSI-RS结束符号后的第N个符号激活的，而N为大于CSI的计算时间的整数，考虑了CSI的计算时间。第一定时器也可以是在第一符号后的第L个时隙激活的，第一符号考虑了CSI的计算时间。因此，第一定时器的激活时间可以根据CSI报告延时上限和CSI的计算时间确定，例如，第一定时器的激活时间可以小于或等于CSI报告延时上限与CSI的计算时间之间的差值，以便可以保证监听是在CSI报告延时上限内进行的，可以减少不必要的监听，从而可以降低第二终端设备的功耗。
可以理解，上述对根据CSI报告延时上限和CSI的计算时间确定第一定时器的激活时间的举例只是示例性说明，并不对其构成限定。
可选地，当第二终端设备在第一指示信息、第一PSSCH或CSI-RS的结束符号后的第N个符号激活第一定时器，或者在第一符号后的第L个时隙激活第一定时器时，从第二终端设备发送第一指示信息到激活第一定时器之间有一段时间。在这段时间内，如果第二终端设备处于DRX的激活期，第二终端设备也需要监听PSCCH或者SCI。因此，为了第二终端设备在这段时间内不进行监听以降低第二终端设备的功耗，第二终端设备可以在第一PSSCH、第二级SCI或CSI-RS的结束符号后的第一个符号激活第二定时器，或者可以在第一符号后的第L个时隙激活第二定时器，在第二定时器的激活时间内不监听PSCCH或者SCI。第二定时器的激活时间可以大于或等于CSI的计算时间。第二定时器失效的时间可以为激活第一定时器的时间，也可以早于激活第一定时器的时间。第二定时器超时时第二定时器失效。请参阅图10，图10是 本申请实施例公开的一种第一定时器和第二定时器的示意图。如图10所示，T6为激活第二定时器的时间，T7为激活第一定时器的时间以及第二定时器失效的时间，T8为第一定时器失效的时间。图10中第二定时器失效的时间为激活第一定时器的时间。
其中，上述第一定时器的激活时间可以是预配置的，也可以是网络设备配置的，还可以是通过其它方式确定的，在此不加限定。
704、第一终端设备激活第三定时器。
705、第一终端设备在第三定时器的激活时间内向第二终端设备发送CSI报告。
第一终端设备接收到来自第二终端设备的第一指示信息之后，可以激活第三定时器，在第三定时器的激活时间内向第二终端设备发送CSI报告。
相应地，第二终端设备接收来自第一终端设备的CSI报告。
第一终端设备在第三定时器的激活时间内向第二终端设备发送CSI报告，可以理解为第一终端设备在第三定时器的激活时间内监听PSCCH或SCI，以便第一终端设备可以通过感知或部分感知的方式确定传输资源，即第二PSSCH的传输资源，向第二终端设备发送CSI报告。当第三定时器的激活时间大于或等于感知窗口时，第一终端设备可以通过感知方式确定传输资源；当第三定时器的激活时间小于感知窗口时，第一终端设备可以通过部分感知方式确定传输资源。监听SCI可以理解为监听第一级SCI，也可以理解为监听第一级SCI和第二级SCI，也可以理解为监听第一级SCI和接收相应的第二级SCI。
在一种实现方式中，第一终端设备接收到第一指示信息之后，可以立即根据第一指示信息触发CSI上报。相应地，第一终端设备可以在第一指示信息的结束符号后的第M个符号激活第三定时器，可以理解为在第一指示信息接收完后的第M个符号激活第三定时器，也可以理解为在接收第一指示信息最后一个符号后的第M个符号激活第三定时器。第一终端设备在第一指示信息的结束符号后的第M个符号激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第M个符号激活第一定时器的描述，在此不加赘述。
第一终端设备也可以在第一指示信息的所在时隙后的第M个时隙激活激活第三定时器，可以理解为在第一指示信息后的第M个时隙激活第三定时器，也可以理解为在第一指示信息接收完后的第M个时隙激活第三定时器，还可以理解为在接收第一指示信息最后一个符号后的第M个时隙激活第三定时器，还可以理解为在接收第一指示信息的结束符号后的第M个时隙激活第三定时器。第一终端设备在第一指示信息的所在时隙后的第M个时隙激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的所在时隙后的第M个时隙激活第一定时器的描述，在此不加赘述。
当第一指示信息承载在第一PSSCH上时，第一终端设备也可以在接收完承载第一指示信息的第一PSSCH之后，才根据第一指示信息触发CSI上报。相应地，第一终端设备也可以在第一PSSCH的结束符号后的第M个符号激活第三定时器，可以理解为在第一PSSCH接收完后的第M个符号激活第三定时器，也可以理解为在接收第一PSSCH最后一个符号后的第M个符号激活第三定时器。第一终端设备在第一PSSCH的结束符号后的第M个符号激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第M个符号激活第一定时器的描述，在此不加赘述。
第一终端设备也可以在第一PSSCH的所在时隙后的第M个时隙激活第三定时器，可以理解为在第一PSSCH后的第M个时隙激活第三定时器，也可以理解为在第一PSSCH接收完后的第M个时隙激活第三定时器，还可以理解为在接收第一PSSCH最后一个符号后的第M个时隙激活第三定时器，还可以理解为在接收第一指示信息的结束符号后的第M个时隙激活第三定 时器。第一终端设备在第一PSSCH的所在时隙后的第M个时隙激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的所在时隙后的第M个时隙激活第一定时器的描述，在此不加赘述。
当第一PSSCH包括CSI-RS时，第一终端设备可以先接收第一指示信息，之后才接收CSI-RS。第一终端设备也可以在接收完CSI-RS之后，才根据第一指示信息触发CSI上报。相应地，第一终端设备也可以在CSI-RS的结束符号后的第M个符号激活第三定时器，可以理解为在CSI-RS接收完后的第M个符号激活第三定时器，也可以理解为在接收CSI-RS最后一个符号后的第M个符号激活第三定时器。第一终端设备在CSI-RS的结束符号后的第M个符号激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第M个符号激活第一定时器的描述，在此不加赘述。
第一终端设备也可以在CSI-RS的所在时隙后的第M个时隙激活第三定时器，可以理解为在CSI-RS后的第M个时隙激活第三定时器，也可以理解为在CSI-RS接收完后的第M个时隙激活第三定时器，还可以理解为在接收CSI-RS最后一个符号后的第M个时隙激活第三定时器，还可以理解为在接收CSI-RS的结束符号后的第M个时隙激活第三定时器。第一终端设备在CSI-RS的所在时隙后的第M个时隙激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的所在时隙后的第M个时隙激活第一定时器的描述，在此不加赘述。
其中，上述第三定时器的激活时间可以根据CSI报告延时上限确定。例如，第三定时器的激活时间可以小于或等于CSI报告延时上限。对第三定时器的激活时间的描述可以参考步骤703下面在一种实现方式中对第一定时器的激活时间的描述，在此不加赘述。可以理解，上述对根据CSI报告延时上限确定第三定时器的激活时间的举例只是示例性说明，并不对其构成限定。
在另一种实现方式中，由于第一终端设备接收到第一指示信息之后，先需要生成CSI报告，而生成CSI报告需要一段时间，在这段时间内第一终端设备不会发送CSI报告。因此，当第一终端设备接收到第一指示信息之后可以根据第一指示信息生成CSI报告时，第一终端设备可以在第一指示信息的结束符号后的第N个符号，激活第三定时器，可以理解为在第一指示信息接收完后的第N个符号激活第三定时器，也可以理解为在接收第一指示信息最后一个符号后的第N个符号激活第三定时器。第一终端设备在第一指示信息的结束符号后的第N个符号激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第N个符号激活第一定时器的描述，在此不加赘述。
第一终端设备也可以在第一符号后的第L个时隙激活第三定时器。第一符号可以为发送第一指示信息最后一个符号后的第K个符号，即第一指示信息结束符号后的第K个符号。第一终端设备在第一符号后的第L个时隙激活第三定时器，可以参考上面第一终端设备在第一符号后的第L个时隙激活第一定时器的描述，在此不加赘述。
当第一指示信息承载在第一PSSCH上时，第一终端设备可以在接收完承载第一指示信息的第一PSSCH之后，才根据第一指示信息生成CSI报告。由于考虑到CSI报告生成所需的时间，即CSI的计算时间。第一终端设备也可以在第一PSSCH的结束符号后的第N个符号激活第三定时器，可以理解为在第一PSSCH接收完后的第N个符号激活第三定时器，也可以理解为在接收第一PSSCH最后一个符号后的第N个符号激活第三定时器。第一终端设备在第一PSSCH的结束符号后的第N个符号激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第N个符号激活第一定时器的描述，在此不加赘述。
当第一指示信息承载在第一PSSCH上时，第一符号可以为发送第一PSSCH最后一个符号 后的第K个符号，即第一PSSCH结束符号后的第K个符号。详细描述可以参考第一符号为发送第一指示信息最后一个符号后的第K个符号对应的相关描述，在此不加赘述。
当第一PSSCH包括CSI-RS时，第一终端设备先接收第一指示信息，之后才接收CSI-RS。第一终端设备可以在接收完CSI-RS之后，才根据第一指示信息生成CSI报告。由于考虑到CSI报告生成所需的时间，即CSI的计算时间。第一终端设备也可以在CSI-RS的结束符号后的第N个符号激活第三定时器，可以理解为在CSI-RS接收完后的第N个符号激活第三定时器，也可以理解为在接收CSI-RS最后一个符号后的第N个符号激活第三定时器。第一终端设备在CSI-RS的结束符号后的第N个符号激活第三定时器的描述，可以参考上面第二终端设备在第一指示信息的结束符号后的第N个符号激活第一定时器的描述，在此不加赘述。
当第一PSSCH包括CSI-RS时，第一符号可以为发送CSI-RS最后一个符号后的第K个符号，即CSI-RS结束符号后的第K个符号。详细描述可以参考第一符号为发送第一指示信息最后一个符号后的第K个符号对应的相关描述，在此不加赘述。
其中，在另一种实现方式中，第三定时器的激活时间可以根据CSI报告延时上限和CSI的计算时间确定。例如，第三定时器的激活时间可以小于或等于CSI报告延时上限与CSI的计算时间的差值。对第三定时器的激活时间的描述可以参考步骤703下面在另一种实现方式下面对第一定时器的激活时间的描述，在此不加赘述。可以理解，上述对根据CSI报告延时上限和CSI的计算时间确定第三定时器的激活时间的举例只是示例性说明，并不对其构成限定。
可选地，当第一终端设备在第一指示信息、第一PSSCH或CSI-RS的结束符号后的第N个符号激活第三定时器，或者在第一符号后的第L个时隙激活第三定时器时，第一终端设备从接收到第一指示信息到激活第三定时器之间有一段时间。在这段时间内，如果第一终端设备处于DRX的激活期，第一终端设备也需要监听PSCCH或者SCI。因此，第一终端设备在这段时间内可以不监听控制信令以降低第一终端设备的功耗，第一终端设备可以在第一PSSCH、第二级SCI或CSI-RS的结束符号后的第一个符号激活第四定时器，或者在第一符号后的第L个时隙激活第四定时器，在第四定时器的激活时间内不监听PSCCH或者SCI。第四定时器的激活时间可以大于或等于CSI的计算时间。第四定时器失效的时间可以为激活第三定时器的时间，也可以早于激活第三定时器的时间。第四定时器超时时第四定时器失效。请参阅图11，图11是本申请实施例公开的一种第三定时器和第四定时器的示意图。如图11所示，T9为激活第四定时器的时间，T10为激活第三定时器的时间以及第四定时器失效的时间，T11为第三定时器失效的时间。图11中第四定时器失效的时间为激活第三定时器的时间。
当CSI发送完成时，第一终端设备确定第三定时器失效。可以理解为当CSI发送完成时，不论当前时间与激活第三定时器的时间之间的时间间隔是否超过第三定时器的激活时间，第三定时器均失效。因此，当第三定时器失效的时间与激活第三定时器的时间之间的时间间隔小于第三定时器的激活时间时，第一终端设备只需要监听到第三定时器失效就可以了，不需要一直监听到第三定时器超时，因此，第一终端设备可以提前结束监听，可以减少第一终端设备监听的时间，从而可以降低第一终端设备的功耗。
其中，上述第三定时器的激活时间可以是预配置的，也可以是网络设备配置的，还可以是通过其它方式确定的，在此不加限定。
第一终端设备接收到第一指示信息之后，需要生成CSI报告。生成CSI报告的时候，可以使用以前接收或存储的CSI-RS。可选地，当接收第一指示信息的同时接收了CSI-RS时，第一终端设备也可以根据本次接收的CSI-RS生成CSI报告。
当第二终端设备接收到来自第一终端设备的CSI报告时，第二终端设备确定第一定时器失 效。可以理解为当第二终端设备接收到来自第一终端设备的CSI报告时，不论当前时间与激活第一定时器的时间之间的时间间隔是否超过第一定时器的激活时间，第一定时器均失效。因此，当第一定时器的失效时间与激活第一定时器的时间之间的时间间隔小于第一定时器的激活时间时，第二终端设备只需要监听到第一定时器失效就可以了，不需要一直监听到第一定时器超时，因此，第二终端设备可以提前结束监听，可以减少第二终端设备监听的时间，从而可以降低第二终端设备的功耗。当第一定时器超时时，确定第一定时器失效，可以理解为当第一定时器超时时，不论第二终端设备是否接收到来自第一终端设备的CSI报告，第一定时器均失效。
可选地，第二终端设备可以向第一终端设备发送CSI报告延时上限。相应地，第一终端设备可以接收来自第二终端设备的CSI报告延时上限。CSI报告延时上限可以大于第一终端设备DRX的休眠时间与CSI的计算时间之和。其中，详细描述可以参考图15对应的描述。
其中，步骤701-步骤705中相关的内容可以相互参考，并不局限于对应的步骤。
基于上述网络架构，请参阅图12，图12是本申请实施例公开的另一种通信方法的流程示意图。如图12所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
1201、第二终端设备向第一终端设备发送第二指示信息。
相应地，第一终端设备接收来自第二终端设备的第二指示信息。
在第二终端设备有业务需求的情况下，第二终端设备可以向第一终端设备发送第二指示信息。第二指示信息用于触发CSI的上报，可以理解第二指示信息具有触发第一终端设备向第二终端设备上报CSI报告的功能。
在一种实现方式中，第二指示信息可以承载在第四PSSCH上，可以理解第二指示信息可以通过物理侧行共享信道，进行传输。在一种情况下，第二指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。CSI请求字段的值可以为1，也可以为0，在此不加限定。在另一种情况下，第四PSSCH可以包括第二级SCI，第二级SCI可以包括CSI请求字段，第二指示信息可以为CSI请求字段。在又一种情况下，第二指示信息可以为第四PSSCH中的一个指示符。在又一种情况下，第二指示信息可以为第四PSSCH中的参考信号，该参考信号可以为CSI-RS等各种参考信号。在又一种情况下，第二指示信息可以为第四PSSCH中的一个比特。例如，当这个比特为0或1时，用于触发CSI的上报。应理解，上述对第二指示信息的限定只是示例性的说明，并不对第二指示信息构成限定，第二指示信息可以为具有触发CSI上报功能的任何形式的信息、字段、比特、信令、消息等。
可选地，当第二指示信息承载在第四PSSCH上时，第四PSSCH还可以包括CSI-RS。
在另一种实现方式中，第二指示信息也可以承载在PSCCH上。
可选地，当第二指示信息承载在PSCCH上时，第二终端设备还可以向第一终端设备发送承载有CSI-RS的PSSCH。
1202、当第一终端设备处于DRX时，第一终端设备在CSI报告延时上限内向第二终端设备发送第三PSSCH。
第一终端设备接收到来自第二终端设备的第二指示信息之后，当第一终端设备处于DRX时，为了保证CSI报告的时效性，第一终端设备可以在CSI报告延时上限内向第二终端设备发送第三PSSCH。第三PSSCH可以包括CSI报告。第一终端设备接收到第二指示信息之后，可以先根据第二指示信息生成CSI报告，之后可以通过第三PSSCH向第二终端设备发送CSI报 告。
第一终端设备接收到来自第二终端设备的第二指示信息之后，可以先判断CSI报告延时上限与DRX的激活时间之间是否存在交集。当判断出CSI报告延时上限与DRX的激活时间之间存在交集时，第一终端设备可以在CSI报告延时上限与DRX的激活时间之间的交集内确定第三PSSCH，即第三PSSCH的时域资源属于CSI报告延时上限与DRX的激活时间之间的交集，第一终端设备可以通过确定的第三PSSCH向第二终端设备发送CSI报告。在第一终端设备和第二终端的DRX周期相同时，第一终端设备可以在CSI报告延时上限与DRX的激活时间之间的交集中向第二终端设备发送CSI报告，由于第二终端设备也处于DRX的激活期，因此，第二终端设备可以接收到来自第一终端设备的CSI报告。可以保证CSI报告传输的可靠性，第二终端设备可以进行链路自适应，提高了第二终端设备***传输的可靠性。进一步地，第一终端设备可以在CSI报告延时上限与DRX的激活时间之间的交集内通过感知或部分感知的方式确定第三PSSCH的资源，即第三PSSCH的时域资源属于CSI报告延时上限与DRX的激活时间之间的交集，第一终端设备可以通过确定的第三PSSCH向第二终端设备发送CSI报告。当判断出CSI报告延时上限与DRX的激活时间之间不存在交集时，由于第一终端设备在触发CSI上报的时间与发送CSI报告的时间之间的时间间隔内，第一终端设备一直处于DRX的休眠期，以致第一终端设备无法通过感知或部分感知的方式确定第三PSSCH的传输资源。或者第一终端设备通过历史感知结果确定第三PSSCH的传输资源会导致该传输资源的冲突概率增加，增加了对其他终端设备的干扰。因此，为了能够保证CSI报告能够正常发送，第一终端设备可以通过随机选择的方式确定第三PSSCH的资源。
当CSI报告延时上限与DRX的激活时间之间存在交集，且第二比例大于(或者大于或等于)第七阈值时，第三PSSCH的资源可以为通过感知或部分感知确定的资源。当CSI报告延时上限与DRX的激活时间之间存在交集，且第二比例小于或等于第七阈值时，第三PSSCH的资源可以为通过随机选择确定的资源。例如，当判断出CSI报告延时上限与DRX的激活时间之间存在交集时，可以继续判断第二比例是否大于(或者大于或等于)第七阈值，当判断出第二比例大于(或者大于或等于)第七阈值时，第三PSSCH的资源为通过感知或部分感知确定的资源。当判断出第二比例小于或等于(或者小于)第七阈值时，第三PSSCH的资源为通过随机选择确定的资源。第二比例为DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。第二比例为DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。在一种实现方式中，当CSI报告延时上限与DRX的激活时间之间存在交集，且第二比例小于或等于第七阈值时，第三PSSCH的资源可以为通过模式1的资源选择确定的资源。即网络覆盖范围内的终端设备可以通过向网络设备请求资源来获取第三PSSCH的资源。
详细描述可以参考图23对应的相关描述，在此不再详细赘述。其中，第七阈值与第五阈值可以相同，也可以不同，在此不加限定。第七阈值的相关描述可以参考图23对应的第五阈值的描述，在此不再详细赘述。
随机选择的资源池与感知或部分感知的资源池可以为同一个资源池，也可以为不同的资源池。例如，第一终端设备被配置了两个资源池，一个资源池中的资源用于终端设备通过感知或部分感知的方式使用。另一个资源池中的资源用于终端设备通过随机选择的方式使用。再例如，第一终端设备被配置了一个资源池，该资源池支持感知、部分感知或随机选择的资源选择方式。即不论是感知、部分感知或随机选择的资源，均可以从这个资源池中选择的。
可以理解，上述对随机选择的资源池与感知或部分感知的资源池的说明是示例性的，并不构成限定。请查阅图13，图13是本申请实施例公开的一种CSI报告延时上限与DRX的激活 时间之间存在交集的示意图。图13示意出了三种CSI报告延时上限与DRX的激活时间之间存在交集的情况。一种为CSI报告延时上限与当前DRX周期的激活期以及下一个DRX的周期的激活期均存在交集，另一种为CSI报告延时上限可以与下一个DRX的周期的激活期存在交集，又一种为CSI报告延时上限可以与当前DRX周期的激活期存在交集。可以理解，图13只是对CSI报告延时上限与DRX的激活时间之间存在交集的示例性说明，并不构成限定，还可以为其它方式，在此不加限定。
请查阅图14，图14是本申请实施例公开的一种CSI报告延时上限与DRX的激活时间之间不存在交集的示意图。图14示意出了四种CSI报告延时上限与DRX的激活时间之间存在交集的情况。可以理解，图14只是对CSI报告延时上限与DRX的激活时间之间不存在交集的示例性说明，并不构成限定，还可以为其它方式，在此不加限定。
第一终端设备接收到第二指示信息之后，需要生成CSI报告。生成CSI报告的时候，可以使用以前接收或存储的CSI-RS，也可以使用其他信息。可选地，当第一终端设备在接收第二指示信息的同时接收了CSI-RS时，第一终端设备也可以根据本次接收的CSI-RS生成CSI报告。
基于上述网络架构，请参阅图15，图15是本申请实施例公开的又一种通信方法的流程示意图。如图15所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
1501、第二终端设备向第一终端设备发送CSI报告延时上限。
相应地，第一终端设备接收来自第二终端设备的CSI报告延时上限。
请参阅图16，图16是本申请实施例公开的一种CSI报告延时上限、第一终端设备DRX的休眠时间和CSI的计算时间的示意图。如图16所示，当触发第一终端设备上报CSI的时间与第一终端设备进入休眠期的时间之间的时间间隔等于CSI的计算时间时，第一终端设备生成CSI报告时，即第一终端设备准备好CSI报告时，第一终端设备刚好进入DRX的休眠期。如果第一终端设备通过感知或部分感知的方式确定传输资源，则第一终端设备在休眠期无法确定传输资源，以致第一终端设备在休眠期无法向第二终端设备发送CSI报告。当CSI报告延时上限小于第一终端设备DRX的休眠时间与CSI的计算时间时，在CSI报告时延上限到达时，第一终端设备还处于休眠期，以致第一终端设备针对这次触发无法返回CSI报告。当CSI报告延时上限等于第一终端设备DRX的休眠时间与CSI的计算时间时，在CSI报告时延上限到达时，第一终端设备正由休眠期切换到激活期，第一终端设备可能无法发送CSI报告，以致第一终端设备针对这次触发无法返回CSI报告。因此，为了避免上述问题的发生，当第一终端设备处于DRX时，第二终端设备可以为第一终端设备配置CSI报告延时上限，且CSI报告延时上限可以大于第一终端设备DRX的休眠时间与CSI的计算时间之和。
基于上述网络架构，请参阅图17，图17是本申请实施例公开的又一种通信方法的流程示意图。如图17所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
1701、第二终端设备向第一终端设备发送第一时长。
相应地，第一终端设备接收来自第二终端设备的第一时长。
第一时长为非激活(inactivity)定时器的时长。第一时长可以大于或等于CSI报告延时上限或CSI的计算时间。终端设备接收到一个SL传输之后，非激活定时器可以使终端设备在这个非激活定时器的激活时间内持续监听。
请参阅图18，图18是本申请实施例公开的一种CSI报告延时上限和CSI的计算时间的示意图。图18示意出了四种终端设备处于DRX时，由于终端设备无法通过感知或部分感知的方式确定传输资源，以致无法上报CSI报告的情况。图18只是示例性的说明，并不构成限定，也可以为其它情况，在此不加限定。因此，为了避免上述情况的发生，当第一终端设备处于DRX时，第二终端设备可以为第一终端设备配置或重新配置非激活定时器的时长，且非激活定时器的时长可以大于或等于CSI的计算时间，以便可以保证第一终端设备可以通过感知或部分感知的方式确定传输资源，或者可以获知更多的感知结果提高传输资源的可靠性，从而可以通过确定的传输资源上报CSI报告。当定时器的时长的单位为符号、时隙等时，非激活定时器的时长等于CSI的计算时间也可以保证第一终端设备能够上报CSI报告。
现有技术中，终端设备都是在CSI报告延时上限内上报CSI报告的。因此，为了保证终端设备在CSI报告延时上限内都可以通过感知或部分感知的方式确定传输资源，以便通过确定的可靠的传输资源上报CSI报告，当第一终端设备处于DRX时，第二终端设备可以为第一终端设备配置或重新配置非激活定时器的时长，且非激活定时器的时长可以大于或等于CSI报告延时上限。
第二终端设备可以先判断CSI报告延时上限与第一终端设备DRX的周期的激活时间之间的重叠时间是否小于CSI的计算时间，当判断出CSI报告延时上限与第一终端设备DRX的周期的激活时间之间的重叠时间小于(或者小于或等于)CSI的计算时间时，表明第一终端设备可能无法通过感知或部分感知的方式确定的传输资源上报CSI报告，或者第一终端设备只能获知感知窗口内的少部分感知结果无法保证根据该感知结果确定的传输资源的可靠性。因此，第二终端设备可以为第一终端设备配置或重新配置非激活定时器的时长。当判断出CSI报告延时上限与第一终端设备DRX的周期的激活时间之间的重叠时间大于或等于(或者大于)CSI的计算时间时，表明第一终端设备可以通过感知或部分感知的方式确定的传输资源上报CSI报告，第二终端设备可以不为第一终端设备配置或重新配置非激活定时器的时长，从而可以减少不必要的信息的传输和处理，从而可以节约传输资源和降低终端设备的功耗。
在一种实现方式中，第二终端设备中可能存在多个不同的非激活定时器的时长，在有需要时，第二终端设备可以从这多个时长中选取一个满足要求的时长配置或重新配置给第一终端设备。
在一种实现方式中，第二终端设备可以为第一终端设备配置或重新配置下一次的非激活定时器的时长。因为第一终端设备发送的数据的优先级的值或类型在短时间可能会有较高的相似度，如果当前调整非激活定时器的时长来不及，则可以调整下一次开启的非激活定时器的时长。其中，优先级的值越大，对应的优先级的级别可以越高，也可以越低，在此不加限定。
在一种实现方式中，第一终端设备中的非激活定时器的时长不是第二终端设备配置的，而是第一终端设备中自适应的确定的。第一终端设备可能被配置或预配置或预定义多个不同的非激活定时器的时长，第一终端设备可以根据需要从这多个时长中选取一个满足要求的时长进行使用。
基于上述网络架构，请参阅图19，图19是本申请实施例公开的又一种通信方法的流程示意图。如图19所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
1901、第二终端设备向第一终端设备发送第三指示信息。
相应地，第一终端设备接收来自第二终端设备的第三指示信息。
在第二终端设备有业务需求的情况下，第二终端设备可以向第一终端设备发送第三指示信息。第三指示信息用于触发CSI的上报，可以理解第三指示信息具有触发第一终端设备向第二终端设备上报CSI报告的功能。
在一种实现方式中，第三指示信息可以承载在第五PSSCH上，可以理解第三指示信息可以通过物理侧行共享信道进行传输。在一种情况下，第三指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。CSI请求字段的值可以为1，也可以为0，在此不加限定。在另一种情况下，第五PSSCH可以包括第二级SCI，第二级SCI可以包括CSI请求字段，第三指示信息可以为CSI请求字段。在又一种情况下，第三指示信息可以为第五PSSCH中的一个指示符。在又一种情况下，第三指示信息可以为第五PSSCH中的参考信号，该参考信号可以为CSI-RS等各种参考信号。在又一种情况下，第三指示信息可以为第五PSSCH中的一个比特。例如，当这个比特为0或1时，用于触发CSI的上报。应理解，上述对第三指示信息的限定只是示例性的说明，并不对第三指示信息构成限定，第三指示信息可以为具有触发CSI上报功能的任何形式的信息、字段、比特、信令、消息等。
可选地，当第三指示信息承载在第五PSSCH上时，第五PSSCH还可以包括CSI-RS。
在另一种实现方式中，第三指示信息也可以承载在PSCCH上。
可选地，当第三指示信息承载在PSCCH上时，第二终端设备还可以向第一终端设备发送承载有CSI-RS的PSSCH。
1902、当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度大于或等于第一时间时，第一终端设备向第二终端设备发送CSI报告。
第一终端设备接收到来自第二终端设备的第三指示信息之后，可以先判断CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度是否大于或等于(或者大于)第一时间。当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度大于或等于(或者大于)第一时间时，表明第一终端设备可以通过感知或部分感知的方式确定的传输资源上报CSI报告，第一终端设备可以通过感知或部分感知的方式确定传输资源，通过确定的传输资源向第二终端设备发送CSI报告。
当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度小于(或者小于或等于)第一时间时，表明第一终端设备无法通过感知或部分感知的方式确定的传输资源上报CSI报告，第一终端设备可以不上报CSI报告。第一终端设备也可以切换DRX的周期，使切换后的第一终端设备DRX的激活时间与CSI报告延时上限之间的重叠长度大于或等于(或者大于)第一时间，之后第一终端设备可以通过感知或部分感知的方式确定传输资源，以及通过确定的传输资源向第二终端设备发送CSI报告。
第一时间可以为CSI的计算时间，也可以为第一阈值，还可以为CSI报告延时上限的第一比例。第一阈值和第一比例可以是预先配置的，也可以是第二终端设备配置的，还可以是网络设备配置的，还可以是通过PC5RRC配置的，还可以是通过其他方式配置的，在此不加限定。
可选地，第二终端设备可以向第一终端设备发送第三指示信息和第三指示信息的优先级的值。相应地，第一终端设备可以接收来自第二终端设备的第三指示信息和第三指示信息的优先级的值。当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度小于第一时间时，第一终端设备可以先判断第三指示信息的优先级的值是否小于(或者小于或等于)第二阈值时。当判断出第三指示信息的优先级的值小于(或者小于或等于)第二阈值 时，表明该业务为重要业务，可以保证该业务的正常传输，可以切换第一终端设备DRX的周期。当判断出第三指示信息的优先级的值大于或等于(或者大于)第二阈值时，表明该业务不重要，可以不切换第一终端设备DRX的周期。其中，上述优先级的值越小对应的优先级的级别越高。
上述方法也可以应用于优先级的值越小对应的优先级的级别越低的情况。相应地，第一终端设备可以先判断第三指示信息的优先级的值是否大于(或者大于或等于)第二阈值时。当判断出第三指示信息的优先级的值大于(或者大于或等于)第二阈值时，表明该业务为重要业务，可以保证该业务的正常传输，可以切换第一终端设备DRX的周期。当判断出第三指示信息的优先级的值小于或等于(或者小于)第二阈值时，表明该业务不重要，可以不切换第一终端设备DRX的周期。其中，第二阈值可以是网络设备配置的，也可以是其他方式配置，如预配置、默认配置等，也可以是预定义的。在一种情况下，当第二阈值没有被配置时，第一终端设备可以默认不切换第一终端设备DRX的周期。
第一终端设备接收到第三指示信息之后，需要生成CSI报告。生成CSI报告的时候，可以使用以前接收或存储的CSI-RS，也可以使用其他信息。可选地，当接收第三指示信息的同时接收了CSI-RS时，第一终端设备也可以使用本次接收的CSI-RS生成CSI报告。
基于上述网络架构，请参阅图20，图20是本申请实施例公开的又一种通信方法的流程示意图。如图20所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
2001、第二终端设备向第一终端设备发送第四指示信息。
相应地，第一终端设备接收来自第二终端设备的第四指示信息。
在第二终端设备有业务需求的情况下，第二终端设备可以向第一终端设备发送第四指示信息。第四指示信息用于触发CSI的上报，可以理解第四指示信息具有触发第一终端设备向第二终端设备上报CSI报告的功能。
在一种实现方式中，第四指示信息可以承载在第六PSSCH上，可以理解第四指示信息可以通过物理侧行共享信道进行传输。在一种情况下，第四指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。CSI请求字段的值可以为1，也可以为0，在此不加限定。在另一种情况下，第六PSSCH可以包括第二级SCI，第二级SCI可以包括CSI请求字段，第四指示信息可以为CSI请求字段。在又一种情况下，第四指示信息可以为第六PSSCH中的一个指示符。在又一种情况下，第四指示信息可以为第六PSSCH中的参考信号，该参考信号可以为CSI-RS等各种参考信号。在又一种情况下，第四指示信息可以为第六PSSCH中的一个比特。例如，当这个比特为0或1时，用于触发CSI的上报。应理解，上述对第四指示信息的限定只是示例性的说明，并不对第四指示信息构成限定，第四指示信息可以为具有触发CSI上报功能的任何形式的信息、字段、比特、信令、消息等。
可选地，当第四指示信息承载在第六PSSCH上时，第六PSSCH还可以包括CSI-RS。
在另一种实现方式中，第四指示信息也可以承载在PSCCH上。
可选地，当第四指示信息承载在PSCCH上时，第二终端设备还可以向第一终端设备发送承载有CSI-RS的PSSCH。
2002、当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度小于第一时间时，第一终端设备切换第一终端设备DRX的周期。
第一终端设备接收到来自第二终端设备的第四指示信息之后，可以先判断CSI报告延时上 限与第一终端设备DRX的激活时间之间的重叠长度是否小于(或者小于或等于)第一时间。当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度小于(或者小于或等于)第一时间时，表明第一终端设备无法通过感知或部分感知的方式确定的传输资源上报CSI报告，第一终端设备可以切换第一终端设备DRX的周期，使切换后的第一终端设备DRX的激活时间与CSI报告延时上限之间的重叠长度大于或等于(或者大于)第一时间。之后第一终端设备可以通过感知或部分感知的方式确定传输资源，以及通过确定的传输资源向第二终端设备发送CSI报告。
第一时间可以为CSI的计算时间，也可以为第一阈值，还可以为CSI报告延时上限的第一比例。第一阈值和第一比例可以是预先配置的，也可以是第二终端设备配置的，还可以是网络设备配置的，还可以是通过PC5RRC配置的，还可以是通过其他方式配置的，在此不加限定。
可选地，第二终端设备可以向第一终端设备发送第四指示信息和第四指示信息的优先级的值。相应地，第一终端设备可以接收来自第二终端设备的第四指示信息和第四指示信息的优先级的值。当判断出CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度小于第一时间时，第一终端设备可以先判断第四指示信息的优先级的值是否小于或等于(或者小于)第三阈值时。当判断出第四指示信息的优先级的值小于或等于(或者小于)第三阈值时，表明该业务为重要业务，为了保证该业务的正常传输，可以切换第一终端设备DRX的周期。当判断出第四指示信息的优先级的值大于(或者大于或等于)第三阈值时，表明该业务不重要，第一终端设备可以不切换第一终端设备DRX的周期。其中，上述优先级的值越小对应的优先级的级别越高。其中，第三阈值可以是网络设备配置的，或者是其他方式配置，预配置，或预定义的。当第三阈值没有被配置时，第一终端设备默认不切换第一终端设备DRX的周期。
上述方法也可以应用于优先级的值越小对应的优先级的级别越低的情况。相应地，第一终端设备可以先判断第四指示信息的优先级的值是否大于(或者大于或等于)第三阈值时。当判断出第四指示信息的优先级的值大于(或者大于或等于)第三阈值时，表明该业务为重要业务，可以保证该业务的正常传输，可以切换第一终端设备DRX的周期。当判断出第四指示信息的优先级的值小于或等于(或者小于)第三阈值时，表明该业务不重要，可以不切换第一终端设备DRX的周期。其中，第三阈值可以是网络设备配置的，也可以是其他方式配置，如预配置、默认配置等，也可以是预定义的。在一种情况下，当第三阈值没有被配置时，第一终端设备可以默认不切换第一终端设备DRX的周期。
第一终端设备接收到第三指示信息之后，需要生成CSI报告。生成CSI报告的时候，可以使用以前接收或存储的CSI-RS，也可以使用其他信息。可选地，当接收第三指示信息的同时接收了CSI-RS时，第一终端设备也可以使用本次接收的CSI-RS生成CSI报告。
基于上述网络架构，请参阅图21，图21是本申请实施例公开的又一种通信方法的流程示意图。如图21所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
2101、第二终端设备向第一终端设备发送第一数据包和第一数据包的优先级的值。
相应地，第一终端设备接收来自第二终端设备的第一数据包和第一数据包的优先级的值。
2102、当第一数据包的优先级的值小于第四阈值时，第一终端设备去使能DRX。
第一终端设备接收到来自第二终端设备的第一数据包和第一数据包的优先级的值之后， 可以先判断第一数据包的优先级的值是否小于(或者小于或等于)第四阈值。当判断出第一数据包的优先级的值小于(或者小于或等于)第四阈值时，表明第一数据包对应的业务为重要业务，当第一终端设备处于DRX时，为了保证该业务的数据的正常传输，第一终端设备可以去使能DRX。当判断出第一数据包的优先级的值大于或等于(或者大于)第六阈值时，表明第一数据包对应的业务不是重要业务，当第一终端设备未处于DRX时，为了降低第一终端设备的功耗，第一终端设备可以使能DRX。第四阈值与第六阈值可以相同，也可以不同。当第四阈值与第六阈值不同时，第六阈值对应的优先级的值要大于第四阈值对应的优先级的值。
其中，上述优先级的值越小对应的优先级的级别越高。
例如，当数据包的优先级的值大于或等于1且小于或等于4时，表明对应的业务重要，当第一终端设备处于DRX时，第一终端设备可以去使能DRX。当数据包的优先级的值大于或等于5小于或等于8时，表明对应的业务不重要，当第一终端设备未处于DRX时，第一终端设备可以使能DRX。
再例如，可以为每个资源池配置或预配置一个阈值，如4，当数据包的优先级的值小于或等于(或者小于)4时，表明对应的业务重要，当第一终端设备处于DRX时，第一终端设备可以去使能DRX。当数据包的优先级的值大于(或者大于或等于)4时，表明对应的业务不重要，当第一终端设备未处于DRX时，第一终端设备可以使能DRX。其中，当这个阈值没有被配置时，第一终端设备可以默认使能DRX。
上面对优先级的举例只是示例性的说明，并不对优先级构成限定。
上述方法也可以应用于优先级的值越小对应的优先级的级别越低的情况。相应地，第一终端设备接收到来自第二终端设备的第一数据包和第一数据包的优先级的值之后，可以先判断第一数据包的优先级的值是否大于(或者大于或等于)第四阈值。当判断出第一数据包的优先级的值大于(或者大于或等于)第四阈值时，表明第一数据包对应的业务为重要业务，当第一终端设备处于DRX时，为了保证该业务的数据的正常传输，第一终端设备可以去使能DRX。这样终端设备可以避免由于处于DRX休眠而没有接收重要数据。当判断出第一数据包的优先级的值小于或等于(或者小于)第六阈值时，表明第一数据包对应的业务不是重要业务，当第一终端设备未处于DRX时，为了降低第一终端设备的功耗，第一终端设备可以使能DRX。第四阈值与第六阈值可以相同，也可以不同。当第四阈值与第六阈值不同时，第六阈值对应的优先级的值要低于第四阈值对应的优先级的值。
其中，第四阈值和/或第六阈值，可以是网络设备配置的，也可以是其他方式配置，如预配置、默认配置等，也可以是预定义的。在一种情况下，当第四阈值和/或第六阈值没有被配置时，第一终端设备可以默认使能DRX。
基于上述网络架构，请参阅图22，图22是本申请实施例公开的又一种通信方法的流程示意图。如图22所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
2201、第二终端设备向第一终端设备发送第二数据包和第二数据包的优先级的值。
相应地，第一终端设备接收来自第二终端设备的第二数据包和第二数据包的优先级的值。
2202、第一终端设备根据第二数据包的优先级的值调整第一终端设备DRX的周期。
第一终端设备接收到来自第二终端设备的第一数据包和第一数据包的优先级的值之后，可以根据第二数据包的优先级的值调整第一终端设备DRX的周期。例如，当第二数据包的优先级的值较低时，表明第二数据包对应的业务为重要业务，为了保证重要业务的正常传输， 可以增加第一终端设备DRX的周期；当第二数据包的优先级的值较高时，表明第二数据包对应的业务不是重要业务，为了降低第一终端设备的功耗，可以减少第一终端设备DRX的周期。这里减少第一终端设备DRX的周期可以理解为，减少第一终端设备DRX的周期长度，或者减少第一终端设备DRX的周期内激活时间所占用的比例。
例如，可以为每个资源池的配置或预配置一个阈值。当数据包的优先级的值小于或等于(或者小于)这个阈值时，表明数据包对应的业务为重要业务，第一终端设备可以调整DRX周期为长周期；当数据包的优先级的值大于(或者大于或等于)这个阈值时，表明数据包对应的业务不重要，第一终端设备可以调整DRX周期为短周期。这里，调整DRX周期可以理解为，调整DRX周期的长度或者调整DRX周期内激活时间所占用的比例。例如，调整DRX周期为短周期，可以理解为调整DRX周期的长度为短周期长度，或者调整DRX周期内激活时间所占用的比例为较小比例。
再例如，可以每个资源池配置或预配置一个表格。表格中给出了不同优先级的值的区间与不同DRX周期的值之间的对应关系。例如，该对应关系可以如表1所示：
表1优先级的值的区间与DRX周期的值之间的对应关系
优先级的值的区间 DRX周期的值
1-3 A
4-6 B
7-8 C
其中，A的长度大于B的长度，B的长度大于C的长度。
第一终端设备根据第二数据包的优先级的值调整第一终端设备DRX的周期，可以理解为，第一终端设备根据第二数据包的优先级的值调整下一个DRX周期。因为第一终端设备的DRX周期是重复的，根据接收的数据包和数据包的优先级的值调整当前的DRX周期，可能会过于灵活导致终端设备的处理时间紧张。由于短时间内的数据调度具有相似性，则可以调整下一个DRX周期。
上面对优先级的值的举例只是示例性的说明，并不对优先级构成限定。
可以理解，上述是针对优先级的值越小对应的优先级的级别越高的情况下进行说明的。
针对优先级的值越小对应的优先级的级别越低的情况也适用。例如，在第二数据包的优先级的值较高时，表明第二数据包对应的业务为重要业务，为了保证重要业务的正常传输，可以增加第一终端设备DRX的周期；在第二数据包的优先级的值较低时，表明第二数据包对应的业务不是重要业务，为了降低第一终端设备的功耗，可以减少第一终端设备DRX的周期。
基于上述网络架构，请参阅图23，图23是本申请实施例公开的又一种通信方法的流程示意图。如图23所示，该通信方法可以包括以下步骤。其中，下面步骤中由终端设备执行的功能，也可以由终端设备中的模块(例如，芯片)来执行。
2301、当第一终端设备处于DRX时，第一终端设备根据第一比例确定资源选择方式。
目前，在SL中终端设备在模式2的资源选择过程中一般通过感知方式确定传输资源。而在SL中引入DRX之后，由于DRX的周期包括激活期和休眠期，终端设备在DRX的休眠期无法接收信息，因此，感知窗口和DRX的激活期可能没有交集，也可能有部分交集，还可能完全有交集。因此，当感知窗口和DRX的激活期没有交集或者有部分交集时终端设备无法获得或 者只能获得部分感知结果。例如，感知窗口和DRX的激活期没有交集，则终端设备在感知窗口内处于休眠期，在感知窗口内没有接收，进而无法获取感知结果。因此，当终端设备处于DRX时，终端设备并不一定能够使用感知方式确定传输资源，或者无法保证使用感知方式确定的传输资源是可用的或者可信任的。这里，获取感知结果可以理解为接收SCI或PSCCH后，获取了SCI或PSCCH中的资源占用信息，并且根据RSRP测量值和阈值进行比较确定的SCI或PSCCH中指示的资源是否可用的信息。
例如，请参阅图38，图38是本申请实施例公开的一种感知窗口处于DRX的休眠期的示意图。如图38所示，当感知窗口全部处于DRX的休眠期时，由于终端设备在休眠期无法接收信息，因此，终端设备无法通过感知方式确定传输资源。
再例如，请参阅图39，图39是本申请实施例公开的一种感知窗口处于DRX的激活期的示意图。如图39所示，当感知窗口全部处于DRX的激活期时，由于终端设备在激活期可以接收信息，因此，终端设备可以通过感知方式确定传输资源。
再例如，请参阅图40，图40是本申请实施例公开的一种感知窗口与DRX的激活期有重叠的示意图。如图40所示，当感知窗口的前半部分处于DRX的激活期内时，终端设备可以接收进而获取感知结果。当感知窗口的后半部分处于DRX的休眠期时，终端设备无法接收，进而无法获取感知结果。当终端设备后续要根据感知结果确定传输资源时，终端设备只能使用在感知窗口的前半部分感知的结果，由于缺失了后半部分的感知结果，因此，发生资源冲突的概率较大，对其他终端设备产生干扰的概率较大。也就是说进行DRX的终端设备相较于没有进行DRX的终端设备会产生更多的干扰。
再例如，请参阅图41，图41是本申请实施例公开的另一种感知窗口与DRX的激活期有重叠的示意图。如图41所示，当感知窗口的前半部分处于DRX的休眠期时，终端设备无法接收，进而无法获取感知结果。当感知窗口的后半部分处于DRX的激活期内时，终端设备可以接收，进而获取感知结果。当终端设备后续要根据感知结果确定传输资源时，终端设备只能使用在感知窗口的后半部分感知的结果，由于这个感知结果可能较少，因此，发生资源冲突的概率较大，对其他终端设备产生干扰的概率较大。
可以理解，图38-图41中的感知窗口可以是固定长度的一段连续时间。感知窗口也可以是根据参数确定的一段连续时间。例如，在时隙n被触发资源选择，感知窗口为
Figure PCTCN2021111007-appb-000001
其中，T 0由高层参数配置，
Figure PCTCN2021111007-appb-000002
可以根据表2确定。
表2
Figure PCTCN2021111007-appb-000003
取决于子载波间隔
Figure PCTCN2021111007-appb-000004
其中，μ SL表示子载波间隔，
Figure PCTCN2021111007-appb-000005
的单位可以为时隙。
可以理解，图38-图41是对感知窗口与DRX的激活期和休眠期的关系的示例性说明，并不构成限定，感知窗口与DRX的激活期和/或休眠期还可以是其它重叠方式，在此不加限定。
因此，当第一终端设备处于DRX时，第一终端设备可以根据第一比例确定资源选择方式。第一比例为DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。资源选择方式可以为 感知方式，也可以为随机选择方式。感知方式可以为感知，也可以为部分感知。感知的感知窗口是连续的一段时间。部分感知的感知窗口可以是连续的一段时间，也可以是非连续的一些时隙的集合。
第一终端设备可以先确定或计算第一比例，之后可以判断第一比例是否大于(或者大于或等于)第五阈值时，当判断出第一比例大于(或者大于或等于)第五阈值时，表明通过感知方式可以获取感知结果的时间较长，感知结果可以信任，由于感知结果变少带来的干扰是有限的，因此，资源选择方式可以为感知方式，可以通过感知方式确定传输资源。当判断出第一比例小于或等于(或者小于)第五阈值时，表明通过感知方式可以获取感知结果的时间较短，通过感知方式在感知窗口内获取的感知结果过少以致无法保证通过感知方式确定的资源的可靠性，因此，资源选择方式可以为随机选择方式，后续可以通过随机选择方式确定传输资源。此处对于第一终设备计算第一比例和判断第一比例和第五阈值的大小关系的先后顺序不做限定。例如，第一终端设备可以确定或计算第一比例的同时判断第一比例是否大于第五阈值。
在一种实现方式中，随时选择方式可以使用第一资源池，感知方式可以使用第二资源池，第一资源池与第二资源池不同。即随机选择方式的资源池与感知方式的资源池为不同的资源池。例如，第一终端设备被配置了两个资源池，一个资源池中的资源用于终端设备通过感知方式使用，另一个资源池中的资源用于终端设备通过随机选择方式使用。可见，随时选择方式可以有专有的资源池，不与感知方式共享资源池。此时，被配置随机选择方式的资源池中，终端设备均通过随机选择方式确定资源，相互的干扰程度是相似的，这样对于终端设备更公平。同时减少了随机选择方式和感知方式共同配置在一个资源池中带来的不公平问题。
在另一种实现方式中，随机选择方式的资源池与感知方式的资源池为同一个资源池。例如，第一终端设备被配置了一个资源池，该资源池支持感知方式和随机选择方式的资源选择。即不论是感知、部分感知或随机选择的资源，均可以从这个资源池中选择的。此时，避免了只配置了随机选择的资源池中，使用随机选择方式的终端设备较少带来的资源浪费问题，提高了频谱利用率。
虽然，随机选择方式的资源池与感知方式的资源池可以为同一个资源池，也可以为不同的资源池，但为了降低资源冲突的概率或可能，随机选择方式与感知方式最好可以使用不同的资源池。
网络设备可以为第一终端设备配置第五阈值，以便第一终端设备可以根据第五阈值确定资源选择方式。因此，在网络设备配置了第五阈值的情况下，表明第一终端设备可以使用多种资源选择方式，第一终端设备可以根据第五阈值来确定资源选择方式，在网络设备没有配置第五阈值的情况下，表明第一终端设备只能使用感知方式，第一终端设备可以使用感知方式确定传输资源。
可以理解，第五阈值也可以是默认配置的，还可以是通过其它方式配置的，在此不加限定。
可以理解，上面几个方法实施例中定时器的激活时间的单位可以为ms、符号、时隙等单位，也可以为其它单位，在此不加限定。定时器的激活时间的单位可以为具体的单位，也可以为比较宽泛的单位，并不进行限定。
可以理解，上述几个方法实施例中相关内容可以相互参考。
可以理解，上述不同实施例之间可以相互组合使用。
基于上述网络架构，请参阅图24，图24是本申请实施例公开的一种通信装置的结构示意图。如图24所示，该通信装置可以包括：
发送单元2401，用于向第一终端设备发送第一指示信息，第一指示信息用于触发CSI的上报；
激活单元2402，用于激活第一定时器；
监听单元2403，用于在第一定时器的激活时间内，监听PSCCH或者SCI。
在一个实施例中，监听PSCCH或者SCI用于接收来自第一终端设备的CSI报告。
在一个实施例中，第一指示信息承载在第一PSSCH上。
在一个实施例中，第一PSSCH还包括CSI-RS。
在一个实施例中，激活单元2402，具体用于在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第M个符号，激活第一定时器，M为大于或等于1的整数。
在一个实施例中，第一定时器的激活时间根据CSI报告延时上限确定。
在一个实施例中，第一定时器的激活时间小于或等于CSI报告延时上限。
在一个实施例中，激活单元2402，具体用于在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第N个符号，激活第一定时器，N为大于CSI的计算时间的整数。
在一个实施例中，第一定时器的激活时间根据CSI报告延时上限和CSI的计算时间确定。
在一个实施例中，第一定时器的激活时间小于或等于CSI报告延时上限与CSI的计算时间的差值。
在一个实施例中，激活单元2402，还用于在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第一个符号，激活第二定时器，在第二定时器的激活时间内不监听PSCCH或者SCI。
在一个实施例中，第一指示信息可以包括第二级SCI，第二级SCI可以包括CSI请求字段，CSI请求字段用于触发CSI的上报。
在一个实施例中，该通信装置还可以包括：
确定单元2404，用于当接收到来自第一终端设备的CSI报告，或者第一定时器超时时，确定第一定时器失效。
有关上述发送单元2401、激活单元2402、监听单元2403和确定单元2404更详细的描述可以直接参考上述图7所示的方法实施例中第二终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图25，图25是本申请实施例公开的另一种通信装置的结构示意图。如图25所示，该通信装置可以包括：
接收单元2501，用于接收来自第二终端设备的第一指示信息，第一指示信息用于触发CSI的上报；
激活单元2502，用于激活第三定时器；
发送单元2503，用于在第三定时器的激活时间内向第二终端设备发送CSI报告。
在一个实施例中，发送单元2503具体用于：
在第三定时器的激活时间内，监听PSCCH或SCI，监听PSCCH或SCI用于确定第二PSSCH；
向第二终端设备发送第二PSSCH，第二PSSCH包括CSI报告。
在一个实施例中，第一指示信息承载在第一PSSCH上。
在一个实施例中，第一PSSCH还包括CSI-RS。
在一个实施例中，激活单元2502，具体用于在第一PSSCH、第一指示信息或CSI-RS的结 束符号后的第M个符号，激活第三定时器，M为大于或等于1的整数。
在一个实施例中，第三定时器的激活时间根据CSI报告延时上限确定。
在一个实施例中，第三定时器的激活时间小于或等于CSI报告延时上限。
在一个实施例中，激活单元2502，具体用于在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第N个符号，激活第三定时器，N为大于CSI的计算时间的整数。
在一个实施例中，第三定时器的激活时间根据CSI报告延时上限和CSI的计算时间确定。
在一个实施例中，第三定时器的激活时间小于或等于CSI报告延时上限与CSI的计算时间的差值。
在一个实施例中，激活单元2502，还用于在第一PSSCH、第一指示信息或CSI-RS的结束符号后的第一个符号，激活第四定时器，在第四定时器的激活时间内不监听PSCCH或SCI。
作为一种可能的实施方式，第一指示信息包括第二级SCI，第二级SCI包括CSI请求字段，CSI请求字段用于触发CSI的上报。
在一个实施例中，该通信装置还可以包括：
确定单元2504，用于当CSI报告发送完成时，确定第三定时器失效。
在一个实施例中，该通信装置还可以包括：
生成单元2505，用于根据所述CSI-RS生成CSI报告。
有关上述接收单元2501、激活单元2502、发送单元2503、确定单元2504和生成单元2505更详细的描述可以直接参考上述图7所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图26，图26是本申请实施例公开的又一种通信装置的结构示意图。如图26所示，该通信装置可以包括：
接收单元2601，用于接收来自第二终端设备的第二指示信息，第二指示信息用于触发CSI的上报；
发送单元2602，用于当第一终端设备处于DRX时，在CSI报告延时上限内向第二终端设备发送第三PSSCH，第三PSSCH包括CSI报告；
当CSI报告延时上限与DRX的激活时间之间存在交集时，第三PSSCH的时域资源属于CSI报告延时上限与DRX的激活时间之间的交集。
在一个实施例中，当CSI报告延时上限与DRX的激活时间之间不存在交集时，第三PSSCH的资源为通过随机选择确定的资源。
在一个实施例中，当CSI报告延时上限与DRX的激活时间之间存在交集时，第三PSSCH的资源为通过感知或部分感知确定的资源。
在一个实施例中，当CSI报告延时上限与DRX的激活时间之间存在交集，且第二比例大于第七阈值时，第三PSSCH的资源为通过感知或部分感知确定的资源，第二比例为DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。
在一个实施例中，当CSI报告延时上限与DRX的激活时间之间存在交集，且第二比例小于或等于第七阈值时，第三PSSCH的资源为通过随机选择确定的资源，第二比例为DRX的激活时间和感知窗口的重叠时间与感知窗口的比例。
在一个实施例中，第二指示信息承载在第四PSSCH。
在一个实施例中，第四PSSCH还包括CSI-RS。
在一个实施例中，该通信装置还可以包括：
生成单元2603，用于根据CSI-RS生成CSI报告。
在一个实施例中，第二指示信息包括第二级SCI，第二级SCI包括CSI请求字段，CSI请求字段用于触发CSI的上报。
有关上述接收单元2601、发送单元2602和生成单元2603更详细的描述可以直接参考上述图12所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图27，图27是本申请实施例公开的又一种通信装置的结构示意图。如图27所示，该通信装置可以包括：
发送单元2701，用于向第一终端设备发送CSI报告延时上限，CSI报告延时上限大于第一终端设备DRX的休眠时间与CSI的计算时间之和。
有关上述发送单元2701更详细的描述可以直接参考上述图15所示的方法实施例中第二终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图28，图28是本申请实施例公开的又一种通信装置的结构示意图。如图28所示，该通信装置可以包括：
接收单元2801，用于接收来自第二终端设备的CSI报告延时上限，CSI报告延时上限大于第一终端设备DRX的休眠时间与CSI的计算时间之和。
有关上述接收单元2801更详细的描述可以直接参考上述图15所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图29，图29是本申请实施例公开的又一种通信装置的结构示意图。如图29所示，该通信装置可以包括：
发送单元2901，用于向第一终端设备发送第一时长，第一时长大于或等于CSI报告延时上限或CSI的计算时间，第一时长为非激活定时器的时长。
在一个实施例中，发送单元2901，具体用于当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠时间小于CSI的计算时间时，向第一终端设备发送第一时长。
有关上述发送单元2901更详细的描述可以直接参考上述图17所示的方法实施例中第二终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图30，图30是本申请实施例公开的又一种通信装置的结构示意图。如图30所示，该通信装置可以包括：
接收单元3001，用于接收来自第二终端设备的第一时长，第一时长大于或等于CSI报告延时上限或CSI的计算时间，第一时长为非激活定时器的时长。
在一个实施例中，接收单元3001，具体用于当CSI报告延时上限与第一终端设备DRX的周期的激活时间之间的重叠时间小于CSI的计算时间时，接收来自第二终端设备的第一时长。
有关上述接收单元3001更详细的描述可以直接参考上述图17所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图31，图31是本申请实施例公开的又一种通信装置的结构示意图。如图31所示，该通信装置可以包括：
接收单元3101，用于接收来自第二终端设备的第三指示信息，第三指示信息用于触发CSI 的上报；
发送单元3102，用于当CSI报告延时上限与第一终端设备DRX的激活时间之间的重叠长度大于或等于第一时间时，向第二终端设备发送CSI报告。
在一个实施例中，第一时间为CSI的计算时间、第一阈值或CSI报告延时上限的第一比例。
在一个实施例中，该通信装置还可以包括：
处理单元3103，用于当CSI报告延时上限与DRX的激活时间之间的重叠长度小于第一时间时，确定不上报CSI报告，或者切换DRX的周期，切换后的DRX的激活时间与CSI报告延时上限之间的重叠长度大于或等于第一时间。
在一个实施例中，接收单元3101，具体用于接收来自第二终端设备的第三指示信息和第三指示信息的优先级的值；
处理单元3103切换DRX的周期包括：
当该优先级的值小于第二阈值时，切换DRX的周期。
在一个实施例中，第三指示信息承载在第五PSSCH。
在一个实施例中，第五PSSCH还包括CSI-RS。
在一个实施例中，该通信装置还可以包括：
生成单元3104，用于根据CSI-RS生成所述CSI报告。
在一个实施例中，第三指示信息包括第二级SCI，第二级SCI包括CSI请求字段，CSI请求字段用于触发CSI的上报。
有关上述接收单元3101、发送单元3102、处理单元3103和生成单元3104更详细的描述可以直接参考上述图19所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图32，图32是本申请实施例公开的又一种通信装置的结构示意图。如图32所示，该通信装置可以包括：
接收单元3201，用于接收来自第二终端设备的第四指示信息，第四指示信息用于触发CSI的上报；
切换单元3202，用于当CSI报告延时上限与第一终端设备DRX的激活时间的重叠长度小于第一时间时，切换DRX的周期，切换后的DRX的激活时间与CSI报告延时上限之间的重叠长度大于或等于第一时间。
在一个实施例中，第一时间为CSI的计算时间、第一阈值或CSI报告延时上限的第一比例。
在一个实施例中，接收单元3201，具体用于接收来自第二终端设备的第四指示信息和第四指示信息的优先级的值；
切换单元3202，具体用于当该优先级的值小于第三阈值时，切换DRX的周期。
有关上述接收单元3201和切换单元3202更详细的描述可以直接参考上述图20所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图33，图33是本申请实施例公开的又一种通信装置的结构示意图。如图33所示，该通信装置可以包括：
接收单元3301，用于接收来自第二终端设备的第一数据包和第一数据包的优先级的值；
去使能单元3302，用于当该优先级的值小于第四阈值时，去使能DRX。
有关上述接收单元3301和去使能单元3302更详细的描述可以直接参考上述图21所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图34，图34是本申请实施例公开的又一种通信装置的结构示意图。如图34所示，该通信装置可以包括：
接收单元3401，用于接收来自第二终端设备的第二数据包和第二数据包的优先级的值；
调整单元3402，用于根据该优先级的值调整DRX的周期。
有关上述接收单元3401和切换单元调整单元3402更详细的描述可以直接参考上述图22所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图35，图35是本申请实施例公开的又一种通信装置的结构示意图。如图35所示，该通信装置可以包括：
确定单元3501，用于当第一终端设备处于DRX时，根据第一比例确定资源选择方式，第一比例为该DRX的激活时间和感知窗口的重叠时间与感知窗口的比例；
当第一比例大于第五阈值时，资源选择方式为感知方式，当第一比例小于或等于第五阈值，资源选择方式为随机选择方式。
在一个实施例中，感知方式为感知或部分感知。
在一个实施例中，随时选择方式使用第一资源池，感知方式使用第二资源池，第一资源池与第二资源池不同。
在一个实施例中，第五阈值由网络设备配置。
有关上述确定单元3501更详细的描述可以直接参考上述图23所示的方法实施例中第一终端设备的相关描述直接得到，这里不加赘述。
基于上述网络架构，请参阅图36，图36是本申请实施例公开的又一种通信装置的结构示意图。如图36所示，该通信装置可以包括处理器3601、存储器3602、输入接口3603、输出接口3604和总线3605。存储器3602可以是独立存在的，可以通过总线3605与处理器3601相连接。存储器3602也可以和处理器3601集成在一起。其中，总线3605用于实现这些组件之间的连接。
在一个实施例中，该通信装置可以为第二终端设备或者第二终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制发送单元2401执行上述实施例中执行的操作，该处理器3601还用于执行激活单元2402、监听单元2403和确定单元2404上述实施例中执行的操作，输入接口3603用于接收来自该通信装置之外的其它通信装置的信息，输出接口3604用于执行上述实施例中发送单元2401执行的操作。上述第二终端设备或者第二终端设备内的模块还可以用于执行上述图7方法实施例中第二终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制接收单元2501和发送单元2503执行上述实施例中执行的操作，该处理器3601还用于执行激活单元2502、确定单元2504和生成单元2505上述实施例中执行的操作，输入接口3603用于执行上述实施例中接收单元2501执行的操作，输出接口3604用于执行上述实施例中发送单元2503执行的操作。上述第一终端设备或者第一终端设备内的模块还可以用于执行上述图7方法实施例中第一终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制接收单元2601 和发送单元2602执行上述实施例中执行的操作，该处理器3601还用于执行生成单元2603上述实施例中执行的操作，输入接口3603用于执行上述实施例中接收单元2601执行的操作，输出接口3604用于执行上述实施例中发送单元2602执行的操作。上述第一终端设备或者第一终端设备内的模块还可以用于执行上述图12方法实施例中第一终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第二终端设备或者第二终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制发送单元2701执行上述实施例中执行的操作，输入接口3603用于接收来自该通信装置之外的其它通信装置的信息，输出接口3604用于执行上述实施例中发送单元2701执行的操作。上述第二终端设备或者第二终端设备内的模块还可以用于执行上述图15方法实施例中第二终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制接收单元2801执行上述实施例中执行的操作，输入接口3603用于执行上述实施例中接收单元2801执行的操作，输出接口3604用于向该通信装置之外的其它通信装置发送信息。上述第一终端设备或者第一终端设备内的模块还可以用于执行上述图15方法实施例中第一终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第二终端设备或者第二终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制发送单元2901执行上述实施例中执行的操作，输入接口3603用于接收来自该通信装置之外的其它通信装置的信息，输出接口3604用于执行上述实施例中发送单元2901执行的操作。上述第二终端设备或者第二终端设备内的模块还可以用于执行上述图17方法实施例中第二终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制接收单元3001执行上述实施例中执行的操作，输入接口3603用于执行上述实施例中接收单元3001执行的操作，输出接口3604用于向该通信装置之外的其它通信装置发送信息。上述第一终端设备或者第一终端设备内的模块还可以用于执行上述图17方法实施例中第一终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制接收单元3101和发送单元3102执行上述实施例中执行的操作，该处理器3601还用于执行处理单元3103和生成单元3104上述实施例中执行的操作，输入接口3603用于执行上述实施例中接收单元3101执行的操作，输出接口3604用于执行上述实施例中发送单元3102执行的操作。上述第一终端设备或者第一终端设备内的模块还可以用于执行上述图19方法实施例中第一终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制接收单元3201执行上述实施例中执行的操作，该处理器3601还用于执行切换单元3202上述实施例中执行的操作，输入接口3603用于执行上述实施例中接收单元3201执行的操作，输出接口3604用于向该通信装置之外的其它通信装置发送信息。上述第一终端设备或者第一终端设备内的模块还 可以用于执行上述图20方法实施例中第一终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制接收单元3301执行上述实施例中执行的操作，该处理器3601还用于执行去使能单元3302上述实施例中执行的操作，输入接口3603用于执行上述实施例中接收单元3301执行的操作，输出接口3604用于向该通信装置之外的其它通信装置发送信息。上述第一终端设备或者第一终端设备内的模块还可以用于执行上述图21方法实施例中第一终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于控制接收单元3401执行上述实施例中执行的操作，该处理器3601还用于执行调整单元3402上述实施例中执行的操作，输入接口3603用于执行上述实施例中接收单元3401执行的操作，输出接口3604用于向该通信装置之外的其它通信装置发送信息。上述第一终端设备或者第一终端设备内的模块还可以用于执行上述图22方法实施例中第一终端设备执行的各种方法，不再赘述。
在一个实施例中，该通信装置可以为第一终端设备或者第一终端设备内的模块(例如，芯片)，存储器3602中存储的计算机程序指令被执行时，该处理器3601用于执行确定单元3501上述实施例中执行的操作，输入接口3603用于接收来自该通信装置之外的其它通信装置的信息，输出接口3604用于向该通信装置之外的其它通信装置发送信息。上述第一终端设备或者第一终端设备内的模块还可以用于执行上述图23方法实施例中第一终端设备执行的各种方法，不再赘述。
基于上述网络架构，请参阅图37，图37是本申请实施例公开的又一种通信装置的结构示意图。如图37所示，该通信装置可以包括输入接口3701、逻辑电路3702和输出接口3703。输入接口3701与输出接口3703通过逻辑电路3702相连接。其中，输入接口3701用于接收来自其它通信装置的信息，输出接口3703用于向其它通信装置输出、调度或者发送信息。逻辑电路3702用于执行除输入接口3701与输出接口3703的操作之外的操作，例如实现上述实施例中处理器3601实现的功能。其中，该通信装置可以为网络设备或者网络设备的模块，也可以为第一终端设备或者第一终端设备的模块，还可以为第二终端设备或者第二终端设备的模块。其中，有关输入接口3701、逻辑电路3702和输出接口3703更详细的描述可以直接参考上述方法实施例中第一终端设备或第二终端设备的相关描述直接得到，这里不加赘述。
本申请实施例还公开一种计算机可读存储介质，其上存储有指令，该指令被执行时执行上述方法实施例中的方法。
本申请实施例还公开一种包括指令的计算机程序产品，该指令被执行时执行上述方法实施例中的方法。
本申请实施例还公开一种通信***，该通信***包括第一终端设备和第二终端设备，具体描述可以参考图7、图12、图15、图17、图19-图23所示的通信方法。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。

Claims (54)

  1. 一种通信方法，其特征在于，包括：
    向第一终端设备发送第一指示信息，所述第一指示信息用于触发信道状态信息CSI的上报；
    激活第一定时器；
    在所述第一定时器的激活时间内，监听物理侧行链路控制信道PSCCH或者侧行链路控制信息SCI。
  2. 根据权利要求1所述的方法，其特征在于，所述监听PSCCH或者SCI用于接收来自所述第一终端设备的CSI报告。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一指示信息承载在第一物理侧行链路共享信道PSSCH上。
  4. 根据权利要求3所述的方法，其特征在于，所述第一PSSCH还包括CSI-参考信号RS。
  5. 根据权利要求4所述的方法，其特征在于，所述激活第一定时器包括：
    在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第M个符号，激活第一定时器，所述M为大于或等于1的整数。
  6. 根据权利要求4所述的方法，其特征在于，所述激活第一定时器包括：
    在所述第一PSSCH、所述第一指示信息或所述CSI-RS的所在时隙后的第M个时隙，激活第一定时器，所述M为大于或等于1的整数。
  7. 根据权利要求5或6所述的方法，其特征在于，所述第一定时器的激活时间小于或等于CSI报告延时上限。
  8. 根据权利要求4所述的方法，其特征在于，所述激活第一定时器包括：
    在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第N个符号，激活第一定时器，所述N为大于CSI的计算时间的整数。
  9. 根据权利要求8所述的方法，其特征在于，所述第一定时器的激活时间小于或等于CSI报告延时上限与所述CSI的计算时间的差值。
  10. 根据权利要求8或9所述的方法，其特征在于，所述方法还包括：
    在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第一个符号，激活第二定时器，在所述第二定时器的激活时间内不监听PSCCH或者SCI。
  11. 根据权利要求3-10任一项所述的方法，其特征在于，所述第一指示信息包括第二级SCI，所述第二级SCI包括CSI请求字段，所述CSI请求字段用于触发CSI的上报。
  12. 根据权利要求1-11任一项所述的方法，其特征在于，所述方法还包括：
    当接收到来自所述第一终端设备的CSI报告，或者所述第一定时器超时时，确定所述第一定时器失效。
  13. 一种通信方法，其特征在于，包括：
    接收来自第二终端设备的第一指示信息，所述第一指示信息用于触发信道状态信息CSI的上报；
    激活第三定时器；
    在所述第三定时器的激活时间内向所述第二终端设备发送CSI报告。
  14. 根据权利要求13所述的方法，其特征在于，所述在所述第三定时器的激活时间内向所述第二终端设备发送CSI报告包括：
    在所述第三定时器的激活时间内，监听物理侧行链路控制信道PSCCH或者侧行链路控制信息SCI，所述监听PSCCH或者SCI用于确定第二物理侧行链路共享信道PSSCH；
    向所述第二终端设备发送所述第二PSSCH，所述第二PSSCH包括CSI报告。
  15. 根据权利要求13或14所述的方法，其特征在于，所述第一指示信息承载在第一PSSCH上。
  16. 根据权利要求15所述的方法，其特征在于，所述第一PSSCH还包括CSI-参考信号RS。
  17. 根据权利要求16所述的方法，其特征在于，所述激活第三定时器包括：
    在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第M个符号，激活第三定时器，所述M为大于或等于1的整数。
  18. 根据权利要求16所述的方法，其特征在于，所述激活第三定时器包括：
    在所述第一PSSCH、所述第一指示信息或所述CSI-RS的所在时隙后的第M个时隙，激活第三定时器，所述M为大于或等于1的整数。
  19. 根据权利要求17或18所述的方法，其特征在于，所述第三定时器的激活时间小于或等于CSI报告延时上限。
  20. 根据权利要求16所述的方法，其特征在于，所述激活第三定时器包括：
    在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第N个符号，激活第三定时器，所述N为大于CSI的计算时间的整数。
  21. 根据权利要求20所述的方法，其特征在于，所述第三定时器的激活时间小于或等于CSI报告延时上限与所述CSI的计算时间的差值。
  22. 根据权利要求20或21所述的方法，其特征在于，所述方法还包括：
    在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第一个符号，激活第四定时器，在所述第四定时器的激活时间内不监听PSCCH或者SCI。
  23. 根据权利要求15-22任一项所述的方法，其特征在于，所述第一指示信息包括第二级SCI，所述第二级SCI包括CSI请求字段，所述CSI请求字段用于触发CSI的上报。
  24. 根据权利要求13-23任一项所述的方法，其特征在于，所述方法还包括：
    当所述CSI报告发送完成时，确定所述第三定时器失效。
  25. 一种通信装置，其特征在于，包括：
    发送单元，用于向第一终端设备发送第一指示信息，所述第一指示信息用于触发信道状态信息CSI的上报；
    激活单元，用于激活第一定时器；
    监听单元，用于在所述第一定时器的激活时间内，监听物理侧行链路控制信道PSCCH或者侧行链路控制信息SCI。
  26. 根据权利要求25所述的装置，其特征在于，所述监听PSCCH或者SCI用于接收来自所述第一终端设备的CSI报告。
  27. 根据权利要求25或26所述的装置，其特征在于，所述第一指示信息承载在第一物理侧行链路共享信道PSSCH上。
  28. 根据权利要求27所述的装置，其特征在于，所述第一PSSCH还包括CSI-参考信号RS。
  29. 根据权利要求28所述的装置，其特征在于，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第M个符号，激活第一定时器，所述M为大于或等于1的整数。
  30. 根据权利要求28所述的装置，其特征在于，所述激活单元，具体用于在所述第一 PSSCH、所述第一指示信息或所述CSI-RS的所在时隙后的第M个时隙，激活第一定时器，所述M为大于或等于1的整数。
  31. 根据权利要求29或30所述的装置，其特征在于，所述第一定时器的激活时间小于或等于CSI报告延时上限。
  32. 根据权利要求28所述的装置，其特征在于，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第N个符号，激活第一定时器，所述N为大于CSI的计算时间的整数。
  33. 根据权利要求32所述的装置，其特征在于，所述第一定时器的激活时间小于或等于CSI报告延时上限与所述CSI的计算时间的差值。
  34. 根据权利要求32或33所述的装置，其特征在于，所述激活单元，还用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第一个符号，激活第二定时器，在所述第二定时器的激活时间内不监听PSCCH或者SCI。
  35. 根据权利要求27-34任一项所述的装置，其特征在于，所述第一指示信息包括第二级SCI，所述第二级SCI包括CSI请求字段，所述CSI请求字段用于触发CSI的上报。
  36. 根据权利要求25-35任一项所述的装置，其特征在于，所述装置还包括：
    确定单元，用于当接收到来自所述第一终端设备的CSI报告，或者所述第一定时器超时时，确定所述第一定时器失效。
  37. 一种通信装置，其特征在于，包括：
    接收单元，用于接收来自第二终端设备的第一指示信息，所述第一指示信息用于触发信道状态信息CSI的上报；
    激活单元，用于激活第三定时器；
    发送单元，用于在所述第三定时器的激活时间内向所述第二终端设备发送CSI报告。
  38. 根据权利要求37所述的装置，其特征在于，所述发送单元具体用于：
    在所述第三定时器的激活时间内，监听物理侧行链路控制信道PSCCH或者侧行链路控制信息SCI，所述监听PSCCH或者SCI用于确定第二物理侧行链路共享信道PSSCH；
    向所述第二终端设备发送所述第二PSSCH，所述第二PSSCH包括CSI报告。
  39. 根据权利要求37或38所述的装置，其特征在于，所述第一指示信息承载在第一PSSCH上。
  40. 根据权利要求39所述的装置，其特征在于，所述第一PSSCH还包括CSI-参考信号RS。
  41. 根据权利要求40所述的装置，其特征在于，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第M个符号，激活第三定时器，所述M为大于或等于1的整数。
  42. 根据权利要求40所述的装置，其特征在于，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的所在时隙后的第M个时隙，激活第三定时器，所述M为大于或等于1的整数。
  43. 根据权利要求41或42所述的装置，其特征在于，所述第三定时器的激活时间小于或等于CSI报告延时上限。
  44. 根据权利要求40所述的装置，其特征在于，所述激活单元，具体用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第N个符号，激活第三定时器，所述N为大于CSI的计算时间的整数。
  45. 根据权利要求44所述的装置，其特征在于，所述第三定时器的激活时间小于或等于CSI报告延时上限与所述CSI的计算时间的差值。
  46. 根据权利要求44或45所述的装置，其特征在于，所述激活单元，还用于在所述第一PSSCH、所述第一指示信息或所述CSI-RS的结束符号后的第一个符号，激活第四定时器，在所述第四定时器的激活时间内不监听PSCCH或者SCI。
  47. 根据权利要求39-46任一项所述的装置，其特征在于，所述第一指示信息包括第二级SCI，所述第二级SCI包括CSI请求字段，所述CSI请求字段用于触发CSI的上报。
  48. 根据权利要求37-47任一项所述的装置，其特征在于，所述装置还包括：
    确定单元，用于当所述CSI报告发送完成时，确定所述第三定时器失效。
  49. 一种通信装置，其特征在于，包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，所述处理器调用所述存储器中存储的计算机程序实现如权利要求1-12任一项所述的方法。
  50. 一种通信装置，其特征在于，包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，所述处理器调用所述存储器中存储的计算机程序实现如权利要求13-24任一项所述的方法。
  51. 一种通信***，其特征在于，包括如权利要求49所述的装置以及如权利要求50所述的装置。
  52. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序或计算机指令，当所述计算机程序或计算机指令被运行时，实现如权利要求1-24任一项所述的方法。
  53. 一种芯片，其特征在于，包括处理器，用于执行存储器中存储的程序，当所述程序被执行时，使得所述芯片执行如权利要求1-24任一项所述的方法。
  54. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码被运行时，实现如权利要求1-24任一项所述的方法。
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