WO2023098574A1 - 一种传输指示方法及通信装置 - Google Patents

一种传输指示方法及通信装置 Download PDF

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Publication number
WO2023098574A1
WO2023098574A1 PCT/CN2022/134214 CN2022134214W WO2023098574A1 WO 2023098574 A1 WO2023098574 A1 WO 2023098574A1 CN 2022134214 W CN2022134214 W CN 2022134214W WO 2023098574 A1 WO2023098574 A1 WO 2023098574A1
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Prior art keywords
time
time window
transmission
terminal device
channel
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PCT/CN2022/134214
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English (en)
French (fr)
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李胜钰
官磊
丁洋
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华为技术有限公司
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Publication of WO2023098574A1 publication Critical patent/WO2023098574A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/12—Flow control between communication endpoints using signalling between network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • 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]

Definitions

  • the present application relates to the field of communication technologies, and in particular to a transmission instruction method and a communication device.
  • the power consumption of network equipment is getting higher and higher.
  • network equipment such as base station
  • 4G fourth generation
  • 5G fifth generation
  • the spectrum used by network equipment is getting wider and wider, and the number of transmitting antennas configured is increasing.
  • Power consumption increases by 2 to 3 times.
  • the power consumption of network equipment may not be directly proportional to the business load.
  • the power consumption of network equipment on multiple transmission time intervals includes load-related dynamic power consumption and load-independent static power consumption. , at this time, the power consumption of the network equipment is not directly proportional to the service load.
  • the new radio (new radio, NR) protocol supports configuring dis-continuous reception (DRX) transmission for the terminal equipment, so that the terminal equipment only receives certain channels and reference signals during a specified period of time.
  • the DRX configured by the network device for the terminal device is periodic.
  • the network device may configure time window parameters of a long DRX cycle for the terminal device.
  • the time window parameters include the length P long of each time window (also known as DRX period), the start subframe offset S sf , the start slot offset value S slot of the onDuration state in the start subframe, and the onDuration state The duration T.
  • the terminal device enters the active state at the beginning of the initial time slot of the onDuration state in each time window, until the end of the onDuration state, the terminal device turns into the inactive state. Only in the active state will the terminal device monitor the downlink control channel (physical downlink control channel, PDCCH) of most of the scheduling data, so as to transmit and receive data according to the instruction of the PDCCH.
  • PDCCH physical downlink control channel
  • Embodiments of the present application provide a transmission indication method and a communication device, which can dynamically and flexibly configure DRX transmission, which is beneficial to reduce performance loss of terminal equipment and reduce power consumption of network equipment and terminal equipment at the same time.
  • the present application provides a transmission indication method, the method includes: a terminal device receives first indication information, the first indication information instructs the terminal device not to receive the first downlink transmission within a first time window, the first downlink transmission An indication information is carried in the first media access control-control element (medium access control-control element, MAC CE) or the first downlink control information (downlink control information, DCI); the terminal device based on the first indication information in the The first downlink transmission is not received within a time window. Based on the method described in the first aspect, the terminal device can dynamically determine whether to receive downlink transmission within the first time window through the first indication information in the MAC CE or DCI. It is beneficial to reduce the performance loss of the terminal equipment, and at the same time reduce the power consumption of the network equipment and the terminal equipment.
  • MAC CE medium access control-control element
  • DCI downlink control information
  • the first MAC CE or the first DCI is carried on a multicast or broadcast physical downlink channel. Since the physical downlink channel of multicast or broadcast is sent to a group of terminal devices, rather than user-specific (UE-specific), the first indication information is sent to the terminal device through the physical downlink channel of multicast or broadcast, avoiding network The problem of high signaling overhead caused by the device sending the first indication information separately for each terminal device reduces the signaling overhead of the network device.
  • the start time of the first time window is determined by the transmission time T1 of the first physical downlink channel, where the first physical downlink channel is a physical downlink channel that bears the first MAC CE or the first DCI.
  • the starting moment of the first time window is determined by the transmission time T1 and the first time length ⁇ T1 of the first physical downlink channel, which carries the first MAC CE or the first For the DCI physical downlink channel, the first time length ⁇ T1 is preset or indicated by the first indication information. After the terminal device receives the first physical downlink channel, it takes a certain amount of time to decode the first indication information.
  • Determining the start time of the first time window based on the transmission time T1 of the first physical downlink channel and the first time length ⁇ T1 can ensure that the start time of the first time window is after the time when the terminal device parses out the first indication information, This avoids the problem of abnormal communication caused by the fact that the terminal device is not sure whether to perform downlink reception before parsing the first indication information.
  • the starting time of the first time window is the starting time of the first time unit
  • the time unit may be a symbol, a sub-slot, a time slot, or a sub-frame. Based on this possible implementation, it is beneficial to ensure that the first time window starts from the beginning of a time unit, conforming to the characteristics that network devices and terminal devices transmit in units of time units, and can reduce implementation complexity.
  • the first time length ⁇ T1 is greater than or equal to a first threshold, where the first threshold is the shortest processing time for the first physical downlink channel supported by the terminal device. Based on this possible implementation, it is beneficial to ensure that the determined starting time of the first time window is located after the time when the terminal device parses the first indication information, so as to avoid that the terminal device is not sure whether to The case of downlink reception.
  • the first threshold may be predetermined by the protocol, that is, the shortest processing time supported by the terminal device for the first physical downlink channel is predetermined by the protocol.
  • the terminal device will be used below
  • the supported shortest processing duration for the first physical downlink channel is referred to as the shortest processing duration for short.
  • the first physical downlink channel is a first physical downlink shared channel (physical downlink shared channel, PDSCH), and the shortest processing time is from receiving the first PDSCH to sending the HAR corresponding to the first PDSCH.
  • the shortest processing duration T proc,1 of hybrid automatic repeat request-acknowledgment (HARQ-ACK); or, the shortest processing duration is the shortest processing duration required for the terminal device to receive the first PDSCH and complete the decoding of the first PDSCH
  • the first physical downlink channel is the first PDCCH
  • the shortest processing duration is the shortest period from when the terminal device receives the first PDCCH to sending the first PDCCH scheduled physical uplink shared channel (physical uplink shared channel, PUSCH).
  • Processing duration T proc,2 ; or, the shortest processing duration is the shortest processing duration required for the terminal device to receive the first PDCCH to complete the decoding of the first PDCCH
  • the protocol pre-specifies that the shortest processing duration includes the shortest processing duration in N different situations, where N is greater than 1, and the first threshold is the maximum value among the above-mentioned N shortest processing durations; or, the first gate
  • the limit value is the nth value among the aforementioned N shortest processing durations, where 1 ⁇ n ⁇ N, and n is pre-indicated by the network device.
  • the starting time of the first time window is the starting time of the second time unit, and the second time unit is the earliest unit of time. Based on this possible implementation, it is beneficial to ensure that the first time window starts from the beginning of a time unit, conforming to the characteristics that network devices and terminal devices transmit in units of time units, and can reduce implementation complexity.
  • the transmission time T1 of the first physical downlink channel is the transmission start time or the transmission end time of the first physical downlink channel.
  • the duration of the first time window is preset. Presetting the duration of the first time window helps to save the overhead of indicating the duration of the first time window.
  • the duration of the first time window is indicated by first indication information.
  • the duration of the first time window is indicated by the first indication information, the duration of the first time window can be changed dynamically, and the duration of the first time window can be more flexible.
  • the first downlink transmission includes any one or more of the following: PDCCH, dynamically scheduled PDSCH, semi-persistent scheduling downlink shared physical channel (semi-persistent scheduling PDSCH, SPS PDSCH), channel State information-reference signal (channel state information reference signal, CSI-RS) or synchronization signal-broadcast channel block (synchronization signal/PBCH, SSB).
  • PDCCH dynamically scheduled PDSCH
  • SPS PDSCH semi-persistent scheduling downlink shared physical channel
  • channel State information-reference signal channel state information reference signal
  • SSB synchronization signal/PBCH
  • the first downlink transmission includes PDCCH, dynamically scheduled PDSCH, SPS PDSCH, CSI-RS and SSB, which can save power consumption of network equipment and terminal equipment to a greater extent.
  • the first downlink transmission includes: PDCCH, dynamically configured PDSCH, SPS PDSCH and CSI-RS, and the first downlink transmission does not include SSB.
  • SSB transmission not only terminal devices in connected state need to receive, but also terminal devices in idle state or inactive state need to receive, but terminal devices in idle state or inactive state may not be able to successfully receive the first indication information. Therefore, reserving SSB transmission in the first time window helps to maintain SSB reception and measurement of idle or inactive terminal devices, and avoids measurement errors caused by network devices not sending SSB but idle or inactive terminal devices trying to detect SSB , to avoid operations such as unnecessary cell reselection.
  • the cycle of SSB transmission itself is relatively large, and the proportion of the time domain is relatively small. The transmission of SSB by the network device within the first time window will not bring a lot of power consumption to the network device.
  • the first downlink transmission does not include the PDCCH scrambled by the SSB and the paging radio network temporary identifier (paging radio network temporary identifier, P-RNTI).
  • the PDCCH scrambled by the P-RNTI is used to schedule the paging indication of the terminal equipment, and the position where each terminal equipment receives the corresponding PDCCH scrambled by the P-RNTI is pre-configured. For a certain terminal device, if the network device skips a PDCCH transmission opportunity scrambled by the P-RNTI, it needs to wait until the next preconfigured opportunity, and the waiting delay is relatively large. Therefore, reserving the PDCCH transmission scrambled by the P-RNTI within the first time window helps to maintain the paging reception of the terminal device.
  • the PDCCH when the first downlink transmission includes a PDCCH, includes one or more of the following: a PDCCH scrambled by a cell access RNTI (C-RNTI) scrambled; PDCCH scrambled by configured scheduling RNTI (CS-RNTI), PDCCH scrambled by slot format indication RNTI (SFI-RNTI), interrupted transmission indication RNTI , INT-RNTI) scrambled PDCCH, cancellation indication radio network temporary identifier (cancellation indication RNTI, CI-RNTI) scrambled PDCCH, physical uplink control channel transmission power control radio network temporary identifier (transmit power control-PUCCH-RNTI, TPC-PUCCH-RNTI) scrambled PDCCH, physical uplink shared channel transmission power control wireless network temporary identifier (transmit power control-PUSCH-RNTI, TPC-PUSCH-RNTI) scrambled PDCCH, sounding reference signal transmission power control wireless network Temporary identifier
  • the first indication information further instructs the terminal device not to send the first uplink transmission within the first time window.
  • the terminal device may also not send the first uplink transmission within the first time window based on the first indication information. Based on this possible implementation manner, the terminal device can dynamically turn off the receiving of the first downlink transmission and the sending of the first uplink transmission, which is beneficial to saving power consumption of the network device and at the same time saving power consumption of the terminal device.
  • the first uplink transmission may include any one or more of the following: a grant-based physical downlink shared channel (grant-based physical downlink shared channel, GB PUSCH), a configured authorized physical uplink shared channel ( configured grantphysical downlink shared channel, CG PUSCH), physical uplink control channel (physical uplink control channel, PUCCH), physical random access channel (physical random access channel, PRACH), uplink sounding reference signal (Sounding Reference Signal, SRS).
  • a grant-based physical downlink shared channel grant-based physical downlink shared channel, GB PUSCH
  • a configured authorized physical uplink shared channel configured grantphysical downlink shared channel, CG PUSCH
  • physical uplink control channel physical uplink control channel
  • PUCCH physical random access channel
  • PRACH physical random access channel
  • SRS Sounding Reference Signal
  • PUCCH when the first uplink transmission includes PUCCH, PUCCH may include one or more of the following: PUCCH bearing HARQ-ACK of dynamically scheduled PDSCH, PUCCH bearing HARQ-ACK of SPS PDSCH, PUCCH bearing CSI
  • PUCCH carrying a scheduling request (scheduling request, SR) or a beam failure recovery (beam failure recovery, BFR) PUCCH.
  • the first indication information indicates that the terminal device does not receive the first downlink transmission within the first time window by displaying an indication
  • the first state value of the first indication information indicates that the terminal device does not receive the first downlink transmission within the first time window.
  • the first downlink transmission is not received within the window; the second status value of the first indication information indicates that the terminal device receives the first downlink transmission within the first time window.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device confirms that the value of the first indication information is the second state value. Based on this possible implementation manner, it is beneficial for the terminal device not to miss receiving the downlink transmission.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device confirms that the value of the first indication information is the first state value. Based on this possible implementation manner, it is beneficial to save the power consumption of the terminal device.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device sends a radio resource control (radio resource control, RRC) signal based on the network device. It is determined that the value of the first indication information is the first state value or the second state value. Based on this possible implementation manner, the value of the first indication information can be flexibly determined.
  • RRC radio resource control
  • the first indication information implicitly indicates that the terminal device does not receive the first downlink transmission within the first time window, and the "existence" of the first indication information indicates that the terminal device does not receive the first downlink transmission at the first time window.
  • the first downlink transmission is not received within the window; "absence” of the first indication information indicates that the terminal device receives the first downlink transmission within the first time window.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device confirms that the first indication information does not exist. Based on this possible implementation manner, it is beneficial for the terminal equipment not to miss receiving downlink transmission, and to ensure communication quality.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device confirms that the first indication information exists. Based on this possible implementation manner, it is beneficial to save the power consumption of the terminal device.
  • the terminal device determines whether the first indication information exists based on the RRC signaling sent by the network device. Based on this possible implementation manner, it may be flexibly determined whether the first indication information exists.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device receives the first downlink transmission within the first time window. Based on this possible implementation manner, it is beneficial for the terminal device not to miss receiving the downlink transmission.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device does not receive the first downlink transmission within the first time window. Based on this possible implementation manner, it is beneficial to save the power consumption of the terminal device.
  • the terminal device determines based on the radio resource control RRC signaling sent by the network device to Whether to receive the first downlink transmission within the window. Based on this possible implementation, when the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, it can flexibly determine whether to receive the first downlink transmission within the first time window.
  • the first indication information is carried on the first MAC CE and the first MAC CE is carried on the SPS PDSCH: when the first indication information indicates that the first downlink transmission is not to be performed within the first time window, and the When the first time window contains the next transmission opportunity of the SPS PDSCH, the terminal device performs any of the following operations:
  • the SPS PDSCH is not received at the next transmission opportunity. This helps to save power consumption of the terminal device.
  • the terminal equipment receives the SPS PDSCH on the next transmission opportunity, and determines whether to receive the first downlink transmission in the next first time window according to the first indication information in the SPS PDSCH received on the next transmission opportunity. This facilitates maximum scheduling flexibility.
  • the terminal device determines whether to receive the SPS PDSCH at the next transmission opportunity according to the RRC signaling sent by the network device. In this way, it can be more flexibly determined whether to receive the SPS PDSCH within the first time window.
  • the first indication information is carried in the first DCI: when the first indication information indicates that the first downlink transmission is not received within the first time window, and the first time window contains the downlink transmission of the first DCI At a transmission opportunity, the terminal device performs any of the following operations:
  • the first DCI is not received at the next transmission opportunity. This helps to save power consumption of the terminal device.
  • the terminal device receives the first DCI at the next transmission opportunity, and determines whether to receive the first downlink in the next first time window according to the first indication information in the first DCI received at the next transmission opportunity transmission. This facilitates maximum scheduling flexibility.
  • the terminal device determines whether to receive the first DCI at the next transmission opportunity according to the RRC signaling sent by the network device, so that it can more flexibly determine whether to receive the first DCI within the first time window.
  • the present application provides a transmission instruction method, the method includes: the network device sends first instruction information to the terminal device, the first instruction information is used to instruct the terminal device not to receive the first transmission within the first time window Uplink transmission, the first indication information is carried in the first MAC CE signaling or the first DCI signaling; the network device does not send the first downlink transmission within the first time window.
  • the first MAC CE or the first DCI is carried on a multicast or broadcast physical downlink channel.
  • the first time length ⁇ T1 is greater than or equal to a first threshold, where the first threshold is the shortest processing time for the first physical downlink channel that the terminal device can support.
  • the first threshold may be predetermined by the protocol, that is, the shortest processing time supported by the terminal device for the first physical downlink channel is predetermined by the protocol.
  • the terminal device will be used below
  • the supported shortest processing duration for the first physical downlink channel is referred to as the shortest processing duration for short.
  • the first physical downlink channel is the first PDSCH
  • the shortest processing duration is the shortest processing duration T proc,1 from the terminal device receiving the first PDSCH to sending the HARQ-ACK corresponding to the first PDSCH; or,
  • the shortest processing duration is the shortest processing duration required by the terminal device to receive the first PDSCH and complete the decoding of the first PDSCH
  • the first physical downlink channel is the first PDCCH
  • the shortest processing duration is the shortest processing duration T proc,2 from the terminal device receiving the first PDCCH to sending the PUSCH scheduled by the first PDCCH; or, the shortest processing The duration is the shortest processing duration required for the terminal device to receive the first PDCCH and complete the decoding of the first PDCCH
  • the protocol pre-specifies that the shortest processing duration includes the shortest processing duration in N different situations, where N is greater than 1, and the first threshold is the maximum value among the above-mentioned N shortest processing durations; or, the first gate
  • the limit value is the nth value among the aforementioned N shortest processing durations, where 1 ⁇ n ⁇ N, and n is pre-indicated by the network device.
  • the starting time of the first time window is the starting time of the second time unit
  • the second time unit is the earliest unit of time
  • the transmission time T1 of the first physical downlink channel is the transmission start time or the transmission end time of the first physical downlink channel.
  • the duration of the first time window is preset; or, the first indication information further indicates the duration of the first time window.
  • the first downlink transmission includes any one or more of the following: PDCCH, dynamically scheduled PDSCH, SPS PDSCH, CSI-RS or SSB.
  • the first downlink transmission includes: PDCCH, dynamically scheduled PDSCH, SPS PDSCH and CSI-RS, and the first downlink transmission does not include SSB.
  • the first downlink transmission does not include the PDCCH scrambled by the SSB and the P-RNTI.
  • the PDCCH when the first downlink transmission includes a PDCCH, includes one or more of the following: PDCCH scrambled by C-RNTI, PDCCH scrambled by CS-RNTI, PDCCH scrambled by SFI-RNTI, INT-RNTI scrambled PDCCH, CI-RNTI scrambled PDCCH, TPC-PUCCH-RNTI scrambled PDCCH, TPC-PUSCH-RNTI scrambled PDCCH, TPC-SRS-RNTI scrambled PDCCH, AI-RNTI scrambled scrambled PDCCH, SI-RNTI scrambled PDCCH, RA-RNTI scrambled PDCCH, TC-RNTI scrambled PDCCH or P-RNTI scrambled PDCCH. That is, the terminal device does not perform blind detection on the PDCCHs scrambled by these RNTIs within the first time window.
  • the first indication information further instructs the terminal device not to send the first uplink transmission within the first time window.
  • the network device does not receive the first uplink transmission within the first time window.
  • the first uplink transmission may include any one or more of the following: GB PUSCH, CG PUSCH, PUCCH, PRACH, SRS.
  • the PUCCH may include one or more of the following: PUCCH bearing HARQ-ACK of dynamically scheduled PDSCH, PUCCH bearing HARQ-ACK of SPS PDSCH, PUCCH bearing CSI, bearing PUCCH of SR or BFR.
  • the first state value of the first indication information indicates that the terminal device does not receive the first downlink transmission within the first time window; the second state value of the first indication information indicates that the terminal device does not receive the first downlink transmission within the first time window; The first downlink transmission is received within the window.
  • the first indication information "exists” indicates that the terminal device does not receive the first downlink transmission within the first time window; the first indication information "absent” indicates that the terminal device does not receive the first downlink transmission within the first time window; A first downlink transmission is received.
  • the present application provides a transmission instruction method, the method includes: a terminal device receives second instruction information, the second instruction information instructs the network device not to send the first downlink transmission within the second time window, and the second The indication information is carried on the first MAC CE or the first DCI, and the end time of the second time window is no later than the transmission time T1 of the first physical downlink channel carrying the second MAC CE or the second DCI; the terminal device bases on the second The indication information determines that the network device has not sent the first downlink transmission within the second time window, that is, when the terminal device receives the first downlink transmission within the second time window, the first downlink transmission is invalid.
  • the terminal device can dynamically determine whether the network device sends the first downlink transmission within the second time window through the MAC CE and the second indication information in the DCI, which is beneficial to reduce the performance of the terminal device loss. Moreover, by making the end of the second time window no later than the transmission time T 1 of the first physical downlink channel carrying the second MAC CE or the second DCI, the network device does not need to predict the first downlink transmission at a subsequent time The transmission amount is used to determine whether to turn off the first downlink transmission, which is beneficial to save the power consumption of the network device.
  • the transmission time T1 of the first physical downlink channel may be the transmission start time of the first physical downlink channel or the transmission end time of the first physical downlink channel.
  • the second MAC CE or the second DCI is carried on a multicast or broadcast physical downlink channel. Since the physical downlink channel of multicast or broadcast is sent to a group of terminal devices, rather than user-specific (UE-specific), the second indication information is sent to the terminal device through the physical downlink channel of multicast or broadcast, avoiding network The problem of high signaling overhead caused by the device sending the second indication information separately for each terminal device reduces the signaling overhead of the network device.
  • the end moment of the second time window is determined by the transmission moment T1 of the first physical downlink channel.
  • the end moment of the second time window is specifically determined by the transmission moment T1 of the first physical downlink channel and the second time length ⁇ T2, and the second time length ⁇ T2 is preset or indicated by the second information indicated.
  • the second time length ⁇ T2 is greater than zero. Since the network device needs a certain processing delay to prepare to send the second indication information after the second time window, the end time of the second time window is determined based on the transmission time T1 of the first physical downlink channel and the second time length ⁇ T2, It is beneficial to make the end time of the second time window be before the transmission time T1 of the first physical downlink channel, so as to better match the sending processing overhead on the network device side.
  • the end time of the second time window is the end time of the third time unit
  • the time unit may be a symbol, a sub-slot, a time slot, or a sub-frame. Based on this possible implementation, it is beneficial to ensure that the second time window ends at the end of a time unit, which conforms to the feature that network devices and terminal devices transmit in units of time units, and can reduce implementation complexity.
  • the end time of the second time window is the end time of the fourth time unit
  • the fourth time unit is the latest time unit whose end time is no later than the transmission time T1 of the first physical downlink channel . Based on this possible implementation manner, it is beneficial to make the end time of the second time window be before the transmission time T1 of the first physical downlink channel, so as to better match the transmission processing overhead on the network device side.
  • the duration of the second time window is preset. Presetting the duration of the second time window is beneficial to saving the indication overhead of the duration of the second time window.
  • the duration of the second time window is indicated by second indication information.
  • the duration of the second time window is indicated by the second indication information, the duration of the second time window can be changed dynamically, and the duration of the second time window can be more flexible.
  • the first downlink transmission includes any one or more of the following: PDCCH, dynamically scheduled PDSCH, semi-persistently scheduled downlink shared physical channel SPS PDSCH, CSI-RS or SSB.
  • the first downlink transmission includes PDCCH, dynamically scheduled PDSCH, SPS PDSCH, CSI-RS and SSB, which can save power consumption of network equipment to a greater extent.
  • the first downlink transmission includes: PDCCH, dynamically scheduled PDSCH, SPS PDSCH and CSI-RS, and the first downlink transmission does not include SSB.
  • SSB transmission not only terminal devices in connected state need to receive, but also terminal devices in idle state or inactive state need to receive, but terminal devices in idle state or inactive state may not be able to successfully receive the second indication information. Therefore, reserving SSB transmission in the second time window helps to maintain SSB reception and measurement of idle or inactive terminal devices, and avoids measurement errors caused by network devices not sending SSB but idle or inactive terminal devices trying to detect SSB , to avoid operations such as unnecessary cell reselection.
  • the cycle of SSB transmission itself is relatively large, and the proportion of the time domain is relatively small, and the network device sending SSB within the second time window will not bring a lot of power consumption to the network device.
  • the first downlink does not include the PDCCH scrambled by the SSB and the P-RNTI.
  • the PDCCH scrambled by the P-RNTI is used to schedule the paging indication of the user, and the position where each user receives the corresponding PDCCH scrambled by the P-RNTI is pre-configured. For a certain terminal device, if the network device skips a PDCCH transmission opportunity scrambled by the P-RNTI, it needs to wait until the next preconfigured opportunity, and the waiting delay is relatively large. Therefore, reserving the PDCCH transmission scrambled by the P-RNTI in the second time window helps to maintain the user's paging reception.
  • the PDCCH includes one or more of the following: PDCCH scrambled by C-RNTI, PDCCH scrambled by CS-RNTI, PDCCH scrambled by SFI-RNTI, PDCCH scrambled by INT-RNTI PDCCH scrambled by CI-RNTI, PDCCH scrambled by TPC-PUCCH-RNTI, PDCCH scrambled by TPC-PUSCH-RNTI, PDCCH scrambled by TPC-SRS-RNTI, PDCCH scrambled by AI-RNTI, SI-RNTI scrambled PDCCH, RA-RNTI scrambled PDCCH, TC-RNTI scrambled PDCCH, or P-RNTI scrambled PDCCH.
  • the second indication information further indicates that the network device does not receive the first uplink transmission within the second time window.
  • the terminal device may also determine based on the second indication information that the network device has not received the first uplink transmission within the second time window, that is, when the terminal device sends the first uplink transmission within the second time window, the first uplink transmission The transmission is invalid, and the terminal device considers that the first uplink transmission fails to be received by the network device side. Based on this possible implementation manner, the network device can dynamically turn off the first downlink transmission and the first uplink transmission, which is beneficial to save power consumption of the network device.
  • the first uplink transmission may include any one or more of the following: GB PUSCH, CG PUSCH, PUCCH, PRACH, SRS.
  • the terminal device if the first uplink transmission includes GB PUSCH, the terminal device does not consider it necessary to send GB PUSCH within the second time window, that is, the terminal device does not expect GB PUSCH to exist within the second time window.
  • PUCCH may include one or more of the following: PUCCH bearing HARQ-ACK of dynamically scheduled PDSCH, PUCCH bearing HARQ-ACK of SPS PDSCH, PUCCH bearing CSI, bearing PUCCH of SR or BFR.
  • the second indication information indicates that the network device does not send the first downlink transmission within the second time window by displaying an indication
  • the first status value of the second indication information indicates that the network device does not send the first downlink transmission within the second time window.
  • the first downlink transmission is not sent within the window; the second state value of the second indication information indicates that the network device sends the first downlink transmission within the second time window.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device confirms that the value of the second indication information is the second state value. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining valid transmissions within the second time window as invalid transmissions.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device confirms that the value of the second indication information is the first state value. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining invalid transmissions within the second time window as valid transmissions.
  • the terminal device determines the value of the second indication information based on the RRC signaling sent by the network device is the first state value or the second state value. Based on this possible implementation manner, the value of the second indication information can be flexibly determined.
  • the second indication information implicitly indicates that the network device does not send the first downlink transmission within the second time window, and the second indication information "exists" indicates that the network device does not send the first downlink transmission within the second time window.
  • the first downlink transmission is not sent within the time window, that is, the first downlink transmission is invalid; the second indication information "absent" instructs the network device to send the first downlink transmission within the second time window.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device confirms that the second indication information does not exist. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining valid transmissions within the second time window as invalid transmissions.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device confirms that the second indication information exists. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining invalid transmissions within the second time window as valid transmissions.
  • the terminal device determines whether the second indication information exists based on the RRC signaling sent by the network device. Based on this possible implementation manner, it may be flexibly determined whether the first downlink transmission received within the second time window is valid.
  • the terminal device determines that the network device sends the first downlink transmission within the second time window . Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining valid transmissions within the second time window as invalid transmissions.
  • the terminal device determines that the network device has not sent the first downlink channel within the second time window. transmission. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining invalid transmissions within the second time window as valid transmissions.
  • the terminal device determines that the network device sends the second MAC CE at the second time based on the RRC signaling sent by the network device. Whether to send the first downlink transmission within the window. Based on this possible implementation manner, it may be flexibly determined whether the first downlink transmission received within the second time window is valid.
  • the present application provides a transmission indication method, the method comprising: the network device does not send the first downlink transmission within the second time window; the network device sends second indication information to the terminal device, the second indication information Instructing the network device not to send the first downlink transmission within the second time window, that is, indicating that the first downlink transmission received by the terminal device within the second time window is invalid; the second indication information is carried in the first MAC CE signaling Or the first DCI signaling, the end time of the second time window is not later than the transmission time T 1 of the first physical downlink channel carrying the second MAC CE or the second DCI.
  • the transmission time T1 of the first physical downlink channel may be the transmission start time of the first physical downlink channel or the transmission end time of the first physical downlink channel.
  • the second MAC CE or the second DCI is carried on a multicast or broadcast physical downlink channel.
  • the time unit at which the end time of the second time window is located is the latest time unit whose end time is not later than time T1 .
  • the end time of the second time window is the end time of the third time unit
  • the end time of the second time window is the end time of the fourth time unit
  • the fourth time unit is the latest time unit whose end time is no later than the transmission time T1 of the first physical downlink channel .
  • the duration of the second time window is preset; or, the second indication information further indicates the duration of the second time window.
  • the first downlink transmission includes any one or more of the following: PDCCH, dynamically scheduled PDSCH, SPS PDSCH, CSI-RS or SSB.
  • the first downlink transmission includes: PDCCH, dynamically scheduled PDSCH, SPS PDSCH and CSI-RS, and the first downlink transmission does not include SSB.
  • the first downlink does not include the PDCCH scrambled by the SSB and the P-RNTI.
  • the PDCCH includes one or more of the following: PDCCH scrambled by C-RNTI, PDCCH scrambled by CS-RNTI, PDCCH scrambled by SFI-RNTI, PDCCH scrambled by INT-RNTI PDCCH scrambled by CI-RNTI, PDCCH scrambled by TPC-PUCCH-RNTI, PDCCH scrambled by TPC-PUSCH-RNTI, PDCCH scrambled by TPC-SRS-RNTI, PDCCH scrambled by AI-RNTI, SI-RNTI scrambled PDCCH, RA-RNTI scrambled PDCCH, TC-RNTI scrambled PDCCH, or P-RNTI scrambled PDCCH.
  • the second indication information further indicates that the network device does not receive the first uplink transmission within the second time window.
  • the network device does not receive the first uplink transmission within the second time window. Based on this possible implementation manner, the network device can dynamically turn off the first downlink transmission and the first uplink transmission, which is beneficial to save power consumption of the network device.
  • the first uplink transmission may include any one or more of the following: GB PUSCH, CG PUSCH, PUCCH, PRACH, SRS.
  • the PUCCH may include one or more of the following: PUCCH bearing HARQ-ACK of dynamically scheduled PDSCH, PUCCH bearing HARQ-ACK of SPS PDSCH, PUCCH bearing CSI, PUCCH carrying SR or BFR.
  • the second indication information indicates that the network device does not send the first downlink transmission within the second time window by displaying an indication
  • the first status value of the second indication information indicates that the network device does not send the first downlink transmission within the second time window.
  • the first downlink transmission is not sent within the window; the second state value of the second indication information indicates that the network device sends the first downlink transmission within the second time window.
  • the second indication information implicitly indicates that the network device does not send the first downlink transmission within the second time window, and the second indication information "exists" indicates that the network device does not send the first downlink transmission within the second time window.
  • the first downlink transmission is not sent within the window, that is, the first downlink transmission is invalid; the second indication information "absent" instructs the network device to send the first downlink transmission within the second time window.
  • the present application provides a communication device, and the communication device may be a terminal device, or a device in the terminal device, or a device that can be matched with the terminal device.
  • the communication device may also be a system on a chip.
  • the communication device may execute the method described in the first aspect or the third aspect.
  • the functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the unit or module can be software and/or hardware.
  • the present application provides a communication device.
  • the communication device may be a network device, or a device in the network device, or a device that can be matched with the network device. Wherein, the communication device may also be a system on a chip.
  • the communication device may execute the method described in the second aspect or the fourth aspect.
  • the functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the unit or module can be software and/or hardware.
  • the present application provides a communication device, the communication device includes a processor and an interface circuit, and the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or The signal from the processor is sent to other communication devices other than the communication device, and the processor implements the methods described in the first aspect to the fourth aspect through a logic circuit or executing code instructions.
  • the present application provides a computer-readable storage medium, where computer programs or instructions are stored in the storage medium, and when the computer programs or instructions are executed by a communication device, the first aspect to the fourth aspect are implemented. the method described.
  • the present application provides a computer program product including instructions.
  • the communication device reads and executes the instructions, the communication device executes the method according to any one of the first aspect to the fourth aspect.
  • the present application provides a communication system, including a communication device for performing the method described in the first aspect above, and a communication device for performing the method described in the second aspect above.
  • a communication device for performing the method described in the third aspect above includes a communication device for performing the method described in the fourth aspect above.
  • FIG. 1 is a schematic diagram of an existing DRX cycle
  • FIG. 2 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • Fig. 3 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a transmission indication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a first time window provided by an embodiment of the present application.
  • Fig. 6 is a schematic diagram of another first time window provided by the embodiment of the present application.
  • FIG. 7 is a schematic diagram of another first time window provided by the embodiment of the present application.
  • Fig. 8 is a schematic diagram of another first time window provided by the embodiment of the present application.
  • FIG. 9 is a schematic diagram of another first time window provided by the embodiment of the present application.
  • FIG. 10 is a schematic flowchart of another transmission indication method provided by the embodiment of the present application.
  • FIG. 11 is a schematic diagram of a second time window provided by an embodiment of the present application.
  • Fig. 12 is a schematic diagram of another second time window provided by the embodiment of the present application.
  • Fig. 13 is a schematic diagram of another second time window provided by the embodiment of the present application.
  • Fig. 14 is a schematic diagram of another second time window provided by the embodiment of the present application.
  • Fig. 15 is a schematic diagram of another second time window provided by the embodiment of the present application.
  • Fig. 16 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a communication system 2000 applied by an embodiment of the present application.
  • the communication system 2000 includes a radio access network 100 and a core network 200 .
  • the communication system 2000 may also include the Internet 300 .
  • the radio access network 100 may include at least one radio access network device (such as 110a and 110b in FIG. 2 ), and may also include at least one terminal device (such as 120a-120j in FIG. 2 ).
  • the terminal equipment is connected to the wireless access network equipment in a wireless manner, and the wireless access network equipment is connected to the core network in a wireless or wired manner.
  • the core network equipment and the wireless access network equipment can be independent and different physical equipment, or the functions of the core network equipment and the logical functions of the wireless access network equipment can be integrated on the same physical equipment, or it can be a physical equipment It integrates some functions of core network equipment and some functions of wireless access network equipment.
  • Terminal devices and terminal devices and wireless access network devices may be connected to each other in a wired or wireless manner.
  • FIG. 2 is only a schematic diagram.
  • the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 2 .
  • the radio access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), and the next generation in the fifth generation (5th generation, 5G) mobile communication system
  • Base station (next generation NodeB, gNB), the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also complete the base station part
  • a functional module or unit for example, can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and also completes the function of the service data adaptation protocol (SDAP); the DU completes the functions of the base station
  • the functions of the radio link control layer and the medium access control (medium access control, MAC) layer can also complete the functions of part or all of the physical layer.
  • the radio access network device may be a macro base station (such as 110a in Figure 2), a micro base station or an indoor station (such as 110b in Figure 2), or a relay node or a donor node.
  • the radio access network device may be referred to as network device for short.
  • the radio access network device is referred to as network device for description below.
  • a terminal device may also be called a terminal, a user equipment (user equipment, UE), a mobile station, a mobile terminal, and the like.
  • Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (internet of things, IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc.
  • Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.
  • Network equipment and terminal equipment can be fixed or mobile.
  • Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the air.
  • the embodiments of the present application do not limit the application scenarios of the network device and the terminal device.
  • the helicopter or drone 120i in FIG. 2 may be configured as a mobile network equipment.
  • the terminal device 120i is a network device; but for the network device 110a, 120i is a terminal device, that is, communication between 110a and 120i is performed through a wireless air interface protocol.
  • communication between 110a and 120i may also be performed through an interface protocol between network devices.
  • 120i is also a network device. Therefore, both network equipment and terminal equipment can be collectively referred to as communication devices, 110a and 110b in FIG. 2 can be referred to as communication devices with network device functions, and 120a-120j in FIG. 2 can be referred to as communication devices with terminal device functions .
  • Communication between network devices and terminal devices, between network devices and network devices, between terminal devices and terminal devices can be performed through licensed spectrum, or through license-free spectrum, or through licensed spectrum and license-free spectrum at the same time
  • Communication can be performed through a frequency spectrum below 6 gigahertz (GHz), or can be performed through a frequency spectrum above 6 GHz, and can also be performed using a frequency spectrum below 6 GHz and a frequency spectrum above 6 GHz at the same time.
  • GHz gigahertz
  • the embodiments of the present application do not limit the frequency spectrum resources used for wireless communication.
  • the functions of the network device may also be performed by modules (such as chips) in the network device, or may be performed by a control subsystem including the functions of the network device.
  • the control subsystem including network device functions may be the control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city.
  • the functions of the terminal equipment may also be performed by a module (such as a chip or a modem) in the terminal equipment, or may be performed by a device including the functions of the terminal equipment.
  • Physical downlink channels include PDSCH and PDCCH.
  • the PDCCH is used to bear the DCI, and the potential transmission position of the PDCCH (including the position in the time domain and the position in the frequency domain) is configured through RRC signaling.
  • PDSCH is used to bear the downlink data channel, and PDSCH is divided into dynamically scheduled PDSCH and SPS PDSCH.
  • each PDSCH transmission corresponds to a DCI, which is used to indicate the time-frequency resources and other parameters of the PDSCH transmission; for SPS PDSCH, the transmission of SPS PDSCH is repeated periodically, and the transmission cycle is determined by RRC
  • the signaling is configured, and the first transmission is activated by DCI, and the last transmission is also deactivated by DCI.
  • the DCI transmission opportunity is also referred to as the PDCCH transmission opportunity, which refers to a potential time domain position of PDCCH transmission. Alternatively, it refers to the time domain position where the start symbol of PDCCH transmission is located.
  • the transmission timing of SPS PDSCH refers to the time domain position of SPS PDSCH transmission. Specifically, the first transmission of SPS PDSCH is determined according to the time domain resource allocation field in the activated DCI, and the subsequent time domain positions of other transmissions are determined according to the first transmission position and the It is determined by the preset period of the SPS PDSCH mentioned above.
  • a multicast or broadcast physical downlink channel can be detected and decoded by multiple terminal devices.
  • a multicast or broadcast physical downlink channel includes a multicast or broadcast PDSCH and a multicast or broadcast PDCCH.
  • the broadcast PDSCH can be scheduled by one broadcast DCI.
  • the broadcast DCI is scrambled by a common RNTI of a cell, so that all terminal devices in the cell can use the RNTI to decode the broadcast DCI to receive the broadcast PDSCH.
  • Multicast PDSCH can be scheduled by one multicast DCI.
  • the multicast DCI is scrambled by a common RNTI of a user group, so that all terminal devices in the user group can use the RNTI to decode the multicast DCI to receive the multicast PDSCH.
  • the DCI carried by the multicast or broadcast PDCCH is referred to as broadcast DCI or multicast DCI for short, wherein the multicast DCI may also be called group common DCI.
  • the broadcast DCI is scrambled by a common RNTI of a cell, so that all terminal devices in the cell can use this RNTI to decode the broadcast DCI.
  • the multicast DCI is scrambled by a common RNTI of a user group, so that all terminal devices in the user group can use this RNTI to decode the multicast DCI.
  • a time unit is a time-domain unit for signal transmission, which may include a radio frame, a subframe, a slot, a mini-slot, or at least one OFDM (Orthogonal Frequency Division Multiplexing, OFDM) symbols and other time domain units. OFDM symbols may also be referred to as time-domain symbols for short.
  • FIG. 3 is a schematic diagram of a possible time unit relationship in the present application. Referring to FIG. 3 , the time domain length of a radio frame is 10 ms. A radio frame may include 10 radio subframes, and a time domain length of a radio subframe is 1 ms.
  • a radio subframe may include one or more time slots, and the specific number of time slots included in a subframe is related to the subcarrier space (Subcarrier Space, SCS).
  • SCS subcarrier Space
  • the time domain length of a time slot is 1ms.
  • One slot includes 14 symbols.
  • the communication device may be enabled not to send data transmission for a period of time, or the communication device may be enabled not to send all or part of the channels for a period of time.
  • This way of reducing power consumption of communication devices may be called a DTX mechanism.
  • the following description is made by taking the communication device as a network device as an example.
  • the network device can set a transmission pattern, and only perform data transmission in a part of the time period in a transmission cycle, and do not perform data transmission or data transmission and reception in other time periods.
  • the network device DTX mechanism can be used to reduce the power consumption of the network device.
  • the DTX mechanism of the network device can also be used to collect the data to be sent into the time period A In this way, the DTX state can be entered in the time period B, and the static energy saving of the network equipment can be realized.
  • the network device can choose whether to perform data transmission and reception or silence in each TTI, and notify the terminal device; or, the network device can also be triggered by the terminal device to determine whether to perform data transmission or silence.
  • Fig. 4 is a schematic flowchart of a transmission indication method provided by an embodiment of the present application.
  • the transmission instruction method includes the following steps 401 to 402 .
  • the execution subject of the method shown in FIG. 4 may be a terminal device and a network device.
  • the execution subject of the method shown in FIG. 4 may be a chip in the terminal device and a chip in the network device.
  • FIG. 4 uses a terminal device and a network device as execution subjects of the method as examples for illustration.
  • the network device sends first indication information to the terminal device.
  • the terminal device may receive the first indication information.
  • the first indication information is used to instruct the terminal device not to receive the first downlink transmission within the first time window, and the first indication information is carried in the first MAC CE or the first DCI.
  • the network device does not send the first downlink transmission within the first time window.
  • the terminal device does not receive the first downlink transmission within the first time window based on the first indication information.
  • the network device can implement DTX transmission, and the terminal equipment can implement DRX transmission.
  • the first MAC CE is carried on a multicast or broadcast PDSCH. Since the multicast or broadcast PDSCH is sent to a group of terminal equipment, rather than user-specific (UE-specific), the first indication information is sent to the terminal equipment through the multicast or broadcast PDSCH, avoiding network equipment for each The problem of high signaling overhead caused by the terminal equipment sending the first indication information respectively reduces the signaling overhead of the network equipment.
  • the first MAC CE may also be carried on a unicast PDSCH.
  • the PDSCH carried by the first MAC CE may be an SPS PDSCH.
  • the terminal device may receive the SPS PDSCH at a preset transmission occasion (occasion) of the SPS PDSCH, and decode the SPS PDSCH to obtain the first MAC CE. Since the SPS PDSCH timing occurs periodically, the relationship between the first time window and the SPS PDSCH transmission timing can satisfy one or more of the following relationships:
  • the period length of the SPS PDSCH can be predefined as the duration of the first time window, so that there is no need to additionally configure the duration of the first time window.
  • the end moment of the first time window can be predefined as the start moment of the next SPS PDSCH transmission opportunity, so that there is no need to additionally configure the end moment of the first time window.
  • the PDSCH carried by the first MAC CE may be a dynamically scheduled (dynamic) PDSCH.
  • the first DCI may be carried on a multicast or broadcast PDCCH. That is, the first DCI may be a multicast DCI or a broadcast DCI.
  • sending the first indication information through the multicast DCI or the broadcast DCI is beneficial to reduce the indication overhead compared to sending the corresponding first indication information to each terminal device.
  • the first DCI may also be carried on a unicast PDCCH.
  • the first DCI may also have one or more of the following designs:
  • the first DCI is obtained by adding a field in a DCI format of the existing protocol, where the added field is used to carry the first indication information.
  • the second way is to obtain the first DCI by designing a DCI format different from that in the existing protocol, that is, the first DCI is different from the DCI format in the existing protocol.
  • the first DCI is a A new DCI format.
  • the first DCI corresponds to a new RNTI, and the RNTI is used to scramble the first DCI.
  • the scrambled RNTI has the same value for multiple terminal devices, and multiple terminal devices can detect and decode the first DCI.
  • the terminal device may determine the position of the first time window based on two or three of the start time of the first time window, the duration of the first time window, and the end time of the first time window.
  • the starting moment of the first time window, the duration of the first time window and the end moment of the first time window are introduced respectively below:
  • the starting moment of the first time window is not earlier than the transmission moment T 1 of the first physical downlink channel carrying the first MAC CE or the first DCI.
  • the starting moment of the first time window may be equal to the transmission moment T 1 of the first physical downlink channel.
  • the starting moment of the first time window is after the transmission moment T1 of the first physical downlink channel.
  • the transmission time T1 of the first physical downlink channel may be the transmission start time of the first physical downlink channel or the transmission end time of the first physical downlink channel.
  • the transmission time T1 in this application is the transmission time understood by the alignment between the network device and the terminal device.
  • the transmission time T1 of the first physical downlink channel may be the first physical downlink channel sending time.
  • the transmission moment T1 of the first physical downlink channel may be the receiving moment of the first physical downlink channel.
  • Fig. 5 is an example in which the starting time of the first time window is after the transmission time T1 of the first physical downlink channel.
  • the network device sends the first indication information to the terminal device through the first physical downlink channel.
  • the network device does not send the first downlink transmission within a first time window after the transmission time T1 of the first physical downlink channel.
  • the terminal device does not receive the first downlink transmission within the first time window after the transmission time T1 of the first physical downlink channel based on the first indication information.
  • the start time of the first time window is determined by the transmission time T1 of the first physical downlink channel and the first time length ⁇ T1, and the first time length ⁇ T1 is preset or indicated by the first indication information.
  • the first time length ⁇ T1 is preset, which means that the first time length ⁇ T1 is predetermined by the protocol. Or, that the first time length ⁇ T1 is preset means that the first time length ⁇ T1 is configured by the network device through RRC signaling. After the terminal device receives the first physical downlink channel, it takes a certain amount of time to decode the first indication information.
  • Determining the start time of the first time window based on the transmission time T1 of the first physical downlink channel and the first time length ⁇ T1 is beneficial to ensure that the determined start time of the first time window is located before the terminal device parses the first indication information After the time of , the situation that the terminal device is not sure whether to receive the first downlink transmission before parsing the first indication information is avoided.
  • the starting time of the first time window is the starting time of the first time unit
  • the transmission time T 1 , the first time length ⁇ T1 and the time T 2 of the first physical downlink channel are shown in FIG. 6 .
  • the start instant of time unit 4 is equal to instant T 2 . Since time unit 4 is the earliest time unit whose start time is not earlier than time T2 , the first time unit is time unit 4.
  • the transmission time T 1 , the first time length ⁇ T1 and the time T 2 of the first physical downlink channel are shown in FIG. 7 .
  • the start time of time unit 4 is later than time T 2 . Since time unit 4 is the earliest time unit whose start time is not earlier than time T2 , the first time unit is time unit 4.
  • the first time length ⁇ T1 is greater than or equal to a first threshold, where the first threshold is the shortest processing time supported by the terminal device for the first physical downlink channel.
  • the first threshold is the shortest processing time supported by the terminal device for the first physical downlink channel.
  • the first threshold may be predetermined by the protocol, that is, the shortest processing time supported by the terminal device for the first physical downlink channel is predetermined by the protocol.
  • the shortest processing duration of the first physical downlink channel is simply referred to as the shortest processing duration.
  • the first physical downlink channel is the first PDSCH
  • the shortest processing duration is the shortest processing duration T proc,1 from the terminal device receiving the first PDSCH to sending the HARQ-ACK corresponding to the first PDSCH; or, the shortest processing duration is The minimum processing time required by the terminal device to receive the first PDSCH and complete the decoding of the first PDSCH
  • the parameters a and b are predefined by the protocol; the definition of the shortest processing duration T proc,1 can refer to the relevant description in Section 5.3 of 3GPP TS38.214, and will not be repeated here.
  • the value of parameter a satisfies 0 ⁇ a ⁇ 1 or 0 ⁇ a ⁇ 0.5
  • the value of parameter b is 0, or the length of 1 or 2 transmission symbols.
  • the shortest processing duration may be the shortest processing duration T proc,2 from when the terminal device receives the first PDCCH to sending the PUSCH scheduled by the first PDCCH, or when the terminal device receives the first PDCCH
  • the shortest processing time required from one PDCCH to complete the decoding of the first PDCCH For example is wherein, the definition of the shortest processing duration T proc,2 can be found in Section 6.4 of 3GPP TS 38.214.
  • Parameters c and d are predefined by the protocol; optionally, the value of parameter c satisfies 0 ⁇ c ⁇ 1 or 0 ⁇ c ⁇ 0.5, the value of parameter d is 0, or the length of 1 or 2 transmission symbols .
  • the protocol pre-specifies that the shortest processing duration includes the shortest processing duration under N different situations, where N is greater than 1, and the first threshold value is the maximum value among the above-mentioned N shortest processing durations; or, the first threshold value is the above-mentioned The nth value among the N shortest processing durations, where 1 ⁇ n ⁇ N, where n is pre-indicated by the network device.
  • the starting time of the first time window is determined by the transmission time T1 of the first physical downlink channel.
  • the starting time of the first time window is the starting time of the second time unit
  • the second time unit is the earliest time unit whose starting time is not earlier than the transmission time T1 of the first physical downlink channel.
  • the transmission time T1 of the first physical downlink channel is as shown in FIG. 8 .
  • the starting moment of time unit 4 is equal to the transmission moment T 1 of the first physical downlink channel. Since time unit 4 is the earliest time unit whose start time is not earlier than the transmission time T1 of the first physical downlink channel, the second time unit is time unit 4 .
  • the transmission time T1 of the first physical downlink channel is as shown in FIG. 9 .
  • the start time of time unit 4 is later than the transmission time T 1 of the first physical downlink channel. Since time unit 4 is the earliest time unit whose start time is not earlier than the transmission time T1 of the first physical downlink channel, the second time unit is time unit 4 .
  • the first indication information can be used to directly indicate the start time of the first time window, which is beneficial to reduce the calculation amount of the terminal device and reduce the power consumption of the terminal device.
  • the duration of the first time window is preset or indicated by the first indication information.
  • the duration of the first time window being preset means that the duration of the first time window is predetermined by the protocol.
  • the duration of the first time window being preset means that the duration of the first time window is configured by the network device through RRC signaling.
  • Presetting the duration of the first time window helps to save the overhead of indicating the duration of the first time window.
  • the duration of the first time window is indicated by the first indication information, the duration of the first time window can be changed dynamically, and the duration of the first time window can be more flexible.
  • the end time of the first time window is preset or indicated by the first indication information.
  • the fact that the end time of the first time window is preset means that the end time of the first time window is predetermined by the protocol.
  • the fact that the end time of the first time window is preset means that the end time of the first time window is configured by the network device through RRC signaling.
  • the network device can be configured through RRC signaling: when the first indication information is carried on the first MAC CE and the first MAC CE is carried on the SPS PDSCH, the end time of the first time window is the next SPS carrying the first MAC CE The start time of the detection opportunity of the PDSCH, or, when the first indication information is carried in the first DCI, the end time of the first time window is the start time of the next detection opportunity of the first DCI carrying the first indication information.
  • presetting the end time of the first time window it is beneficial to save the indication overhead of the end time of the first time window. Indicating the end time of the first time window by using the first indication information is also beneficial to reducing the calculation amount of the terminal device and reducing the power consumption of the terminal device.
  • the first downlink transmission includes any one or more of the following: PDCCH, dynamically scheduled PDSCH, SPS PDSCH, CSI-RS or SSB.
  • the first downlink transmission includes PDCCH, dynamically scheduled PDSCH, SPS PDSCH, CSI-RS and SSB.
  • the fact that the terminal device does not receive the PDCCH within the first time window means that the terminal device does not perform blind detection on the PDCCH at the transmission opportunity of the PDCCH within the first time window.
  • the terminal device does not receive the dynamically scheduled PDSCH within the first time window means: the terminal device does not receive the dynamically scheduled PDSCH within the first time window, the terminal device considers that there is no dynamically scheduled PDSCH transmission, and will not generate a dynamically scheduled PDSCH corresponding feedback information.
  • the terminal device does not receive SPS PDSCH in the first time window means: the terminal device does not receive SPS PDSCH at the transmission timing of SPS PDSCH in the first time window, the terminal device thinks that there is no SPS PDSCH transmission, and will not generate SPS PDSCH corresponding feedback information.
  • the fact that the terminal device does not receive CSI-RS within the first time window means that the terminal device does not measure CSI-RS within the first time window, and the terminal device considers that there is no CSI-RS transmission, and will not generate a measurement result for CSI-RS .
  • the first downlink transmission includes: PDCCH, dynamically scheduled PDSCH, SPS PDSCH and CSI-RS, and the first downlink transmission does not include SSB.
  • SSB transmission not only terminal devices in connected state need to receive, but also terminal devices in idle state or inactive state need to receive, but terminal devices in idle state or inactive state may not be able to successfully receive the first indication information. Therefore, reserving SSB transmission in the first time window helps to maintain SSB reception and measurement of idle or inactive terminal devices, and avoids measurement errors caused by network devices not sending SSB but idle or inactive terminal devices trying to detect SSB , to avoid operations such as unnecessary cell reselection.
  • the cycle of SSB transmission itself is relatively large, and the proportion of the time domain is relatively small.
  • Network equipment sending SSB within the first time window will not bring a lot of power consumption to the network equipment.
  • Receiving the SSB does not bring significant power consumption to the terminal equipment.
  • the first downlink transmission does not include the PDCCH scrambled by the SSB and the P-RNTI.
  • the PDCCH scrambled by the P-RNTI is used to schedule the paging indication of the terminal equipment, and the position where each terminal equipment receives the corresponding PDCCH scrambled by the P-RNTI is pre-configured. For a certain terminal device, if the network device skips the PDCCH transmission opportunity scrambled by the P-RNTI this time, it needs to wait until the next preconfigured opportunity, and the waiting delay is relatively large. Therefore, reserving the PDCCH transmission scrambled by the P-RNTI within the first time window helps to maintain the paging reception of the terminal device.
  • the PDCCH includes one or more of the following: PDCCH scrambled by C-RNTI, PDCCH scrambled by CS-RNTI, PDCCH scrambled by SFI-RNTI, PDCCH scrambled by INT-RNTI PDCCH scrambled by CI-RNTI, PDCCH scrambled by TPC-PUCCH-RNTI, PDCCH scrambled by TPC-PUSCH-RNTI, PDCCH scrambled by TPC-SRS-RNTI, PDCCH scrambled by AI-RNTI, SI-RNTI scrambled PDCCH, RA-RNTI scrambled PDCCH, TC-RNTI scrambled PDCCH, or P-RNTI scrambled PDCCH. That is, the terminal device does not perform blind detection on the PDCCHs scrambled by these RNTIs within the first time window.
  • the first indication information further instructs the terminal device not to send the first uplink transmission within the first time window.
  • the terminal device may also not send the first uplink transmission within the first time window based on the first indication information, and the network device may not receive the first uplink transmission within the first time window.
  • the network device can not only turn off the sending of the first downlink transmission, but also turn off the receiving of the first uplink transmission and the signal processing corresponding to the first uplink transmission, so as to further reduce the power consumption of the network device.
  • the terminal device may dynamically turn off the receiving of the first downlink transmission and the sending of the first uplink transmission, which is beneficial to save power consumption of the terminal device.
  • the first uplink transmission may include any one or more of the following: GB PUSCH, CG PUSCH, PUCCH, PRACH, SRS.
  • GB PUSCH refers to the PUSCH determined based on a UL DCI, or in other words, the PUSCH is scheduled by a UL DCI.
  • the terminal device if the first uplink transmission includes GB PUSCH, the terminal device does not consider it necessary to send GB PUSCH within the first time window, that is, the terminal device does not expect GB PUSCH to exist within the first time window.
  • the PUCCH may include one or more of the following: a PUCCH carrying a HARQ-ACK of a dynamically scheduled PDSCH, a PUCCH carrying a HARQ-ACK of an SPS PDSCH, and a PUCCH carrying channel state information CSI PUCCH, PUCCH carrying SR or BFR.
  • the first indication information may indicate that the terminal device does not receive the first downlink transmission within the first time window in an explicit indication manner or an implicit indication manner.
  • the first indication information is an information bit, and different state values of the information bit are used to indicate different information.
  • the first state value of the first indication information indicates that the terminal device does not receive the first downlink transmission within the first time window; the second state value of the first indication information indicates that the terminal device receives the first downlink transmission within the first time window .
  • the first indication information is a 1-bit information bit.
  • the first indication information indicates that the terminal device does not receive the first downlink transmission within the first time window.
  • the 1-bit state value When the value is 0, the first indication information indicates that the terminal device receives the first downlink transmission within the first time window.
  • the 1-bit status value when the 1-bit status value is 0, the first indication information indicates that the terminal equipment does not receive the first downlink transmission within the first time window; when the 1-bit status value is 1, the first indication information indicates that the terminal equipment A first downlink transmission is received within a first time window.
  • the first indication information is a 2-bit information bit.
  • the 2-bit status value When the 2-bit status value is 11, it indicates that the terminal device does not receive the first downlink transmission within the first time window; when the 2-bit status value is 00, it indicates that the terminal device receives the first downlink transmission within the first time window. Line transmission.
  • the 2-bit status value when the 2-bit status value is 00, it indicates that the terminal equipment does not receive the first downlink transmission within the first time window; when the 2-bit status value is 11, it indicates that the terminal equipment receives the first downlink transmission within the first time window. downlink transmission.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device confirms that the value of the first indication information is the second state value. Based on this possible implementation manner, it is beneficial for the terminal device not to miss receiving the downlink transmission.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device confirms that the value of the first indication information is the first state value. Based on this possible implementation manner, it is beneficial to save the power consumption of the terminal device.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device sends a radio resource control (radio resource control, RRC) signal based on the network device. It is determined that the value of the first indication information is the first state value or the second state value. Based on this possible implementation manner, the value of the first indication information can be flexibly determined.
  • RRC radio resource control
  • the terminal device determines whether to receive the first downlink transmission within the first time window by detecting whether the first indication information exists in the first MAC CE or the first DCI.
  • the first indication information "exists” indicates that the terminal device does not receive the first downlink transmission within the first time window; the first indication information "absent” indicates that the terminal device receives the first downlink transmission within the first time window; First downlink transmission.
  • the first indication information "absence” indicates that the terminal device does not receive the first downlink transmission within the first time window; the first indication information "exists” indicates that the terminal device receives the first downlink transmission within the first time window.
  • the terminal device receives the SPS PDSCH at the preset time-frequency position and decodes it, and queries the data after decoding Whether the first MAC CE contained in the block. If the first MAC CE is included, that is, the first indication information "exists", the terminal device does not receive the first downlink transmission within the first time window. When the data block does not contain the first MAC CE, that is, the first indication information "does not exist", the terminal device receives the first downlink transmission within the first time window.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device confirms that the first indication information does not exist. Based on this possible implementation manner, it is beneficial for the terminal equipment not to miss receiving downlink transmission, and to ensure communication quality.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device confirms that the first indication information exists. Based on this possible implementation manner, it is beneficial to save the power consumption of the terminal device.
  • the terminal device determines whether the first indication information exists based on the RRC signaling sent by the network device. Based on this possible implementation manner, it may be flexibly determined whether the first indication information exists.
  • the network device does not send the first downlink transmission within the first time window, which may also be understood as being in an inactive state within the first time window.
  • the fact that the network device sends the first downlink transmission within the first time window may also be understood as that the network device is in an active state within the first time window.
  • the terminal device does not receive the first downlink transmission within the first time window, which may be understood as the terminal device is in an inactive state within the first time window.
  • the fact that the terminal device receives the first downlink transmission within the first time window may be understood as that the terminal device is in an activated state within the first time window.
  • the first indication information indicating that the terminal device does not receive the first downlink transmission within the first time window may also be understood as: the first indication information indicates that the terminal device is in an inactive state within the first time window.
  • the first indication information indicating that the terminal device receives the first downlink transmission within the first time window may also be understood as: the first indication information indicates that the terminal device is in an active state within the first time window.
  • the network device does not send the first downlink transmission within the first time window, and the terminal device does not receive the first downlink transmission within the first time window, there is a transmission demand within the first time window
  • the network device can resend the first downlink transmission and/or receive the first uplink transmission on the available time-frequency resources after the end of the first time window; the terminal device can resend the first downlink transmission on the available time-frequency resources after the end of the first time window Re-receive the first downlink transmission and/or send the first uplink transmission.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device receives the first downlink transmission within the first time window. That is, when the terminal device cannot obtain the first indication information, the terminal device receives the first downlink transmission within the first time window, or it is understood that when the terminal device cannot obtain the first indication information, the terminal device considers that the first indication information The information indicates that the terminal device receives the downlink transmission within the first time window. Based on this possible implementation manner, it is beneficial for the terminal device not to miss receiving the downlink transmission.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device does not receive the first downlink transmission within the first time window. That is, when the terminal device cannot obtain the first indication information, the terminal device does not receive downlink transmission within the first time window, or it is understood that when the terminal device cannot obtain the first indication information, the terminal device considers that the first indication information indicates The terminal device does not receive downlink transmission within the first time window. Based on this possible implementation manner, it is beneficial to save the power consumption of the terminal device.
  • the terminal device determines whether the A first downlink transmission is received. Based on this possible implementation, when the terminal device fails to decode the first physical downlink channel carrying the first MAC CE or the first DCI, the terminal device can flexibly determine whether to receive the first MAC CE or the first DCI within the first time window according to the RRC signaling. First downlink transmission.
  • the first indication information is carried on the first MAC CE and the first MAC CE is carried on the SPS PDSCH: when the first indication information indicates that the first downlink transmission is not received within the first time window, and the first When the next transmission opportunity of the SPS PDSCH carrying the first MAC CE is included in a time window, the terminal device performs any of the following operations:
  • the SPS PDSCH is not received at the next transmission opportunity. This helps to save power consumption of the terminal device.
  • the network device will not send the SPS PDSCH at the next transmission opportunity, thereby reducing the power consumption of the network device.
  • the terminal device performs SPS PDSCH reception on the next transmission opportunity, and determines whether to receive the first downlink transmission in the next first time window according to the first indication information in the SPS PDSCH received on the next transmission opportunity .
  • the network device sends the SPS PDSCH at the next transmission opportunity.
  • the terminal device determines that the first downlink transmission needs to be performed in the next first time window according to the first indication information in the SPS PDSCH received at the next transmission opportunity.
  • the terminal device behavior in the next first time window will overwrite the terminal device behavior in the previous first time window, that is, the terminal device will perform the first time window in the overlapping part. downlink transmission.
  • network devices can continuously adjust decision-making behaviors to obtain maximum scheduling flexibility.
  • the terminal device determines whether to receive the SPS PDSCH at the next transmission opportunity according to the RRC signaling sent by the network device. In this way, it can be more flexibly determined whether to receive the SPS PDSCH within the first time window.
  • the first indication information is carried in the first DCI: when the first indication information indicates that the first downlink transmission is not received within the first time window, and the first time window contains the downlink transmission of the first DCI At a transmission opportunity, the terminal device performs any of the following operations:
  • the first DCI is not received at the next transmission opportunity.
  • the network device will not send the first DCI at the next transmission opportunity, so that the power consumption of the network device can be reduced.
  • the terminal device receives the first DCI at the next transmission opportunity, and determines whether to receive the first downlink in the next first time window according to the first indication information in the first DCI received at the next transmission opportunity transmission.
  • the network device sends the first DCI at the next transmission opportunity.
  • the terminal device determines, according to the first indication information in the first DCI received at the next transmission opportunity, that the first downlink transmission needs to be performed in the next first time window.
  • the behavior of the terminal device in the next first time window will cover the behavior of the terminal device in the previous first time window, that is, the terminal device will perform the first time window in the overlapping part. downlink transmission.
  • network devices can continuously adjust decision-making behaviors to obtain maximum scheduling flexibility.
  • the terminal device determines whether to receive the first DCI at the first DCI transmission opportunity according to the RRC signaling sent by the network device. In this way, it can be determined more flexibly whether to receive the first DCI within the first time window.
  • the network device can instruct the terminal device not to receive the first downlink transmission within the first time window through MAC CE and DCI, and can dynamically and flexibly configure DRX for the terminal device, which is beneficial to Reduce the performance loss of terminal equipment, while reducing the power consumption of network equipment and terminal equipment.
  • Fig. 10 is a schematic flowchart of another transmission indication method provided by the embodiment of the present application.
  • the transmission instruction method includes the following steps 1001 to 1003 .
  • the execution body of the method shown in FIG. 10 may be a terminal device and a network device.
  • the execution subject of the method shown in FIG. 10 may be a chip in the terminal device and a chip in the network device.
  • FIG. 10 uses a terminal device and a network device as examples for execution of the method.
  • the network device does not send the first downlink transmission within the second time window.
  • network equipment can implement DTX transmission.
  • the network device sends second indication information to the terminal device.
  • the terminal device may receive the second indication information.
  • the second indication information indicates that the network device does not send the first downlink transmission within the second time window, and the second indication information is carried in the second MAC CE or the second DCI. Alternatively, it can also be understood that the second indication information indicates that the terminal device does not need to receive the first downlink transmission within the second time window.
  • the second MAC CE is carried on a multicast or broadcast PDSCH. Since the multicast or broadcast PDSCH is sent to a group of terminal equipment, rather than user-specific (UE-specific), the second indication information is sent to the terminal equipment through the multicast or broadcast PDSCH, which avoids network equipment for each The problem of high signaling overhead caused by the terminal equipment sending the second indication information respectively reduces the signaling overhead of the network equipment.
  • the second MAC CE may also be carried on the unicast PDSCH.
  • the PDSCH carried by the second MAC CE may be an SPS PDSCH.
  • the terminal device can receive the SPS PDSCH at the preset transmission timing of the SPS PDSCH, and decode the SPS PDSCH to obtain the second MAC CE. Since the SPS PDSCH timing occurs periodically, the relationship between the second time window and the SPS PDSCH transmission timing can satisfy one or more of the following relationships:
  • the period length of the SPS PDSCH can be predefined as the duration of the second time window, so that there is no need to additionally configure the duration of the second time window.
  • the start moment of the second time window can be predefined as the start moment or end moment of the last SPS PDSCH opportunity, so that the start moment of the second time window does not need to be additionally configured.
  • the PDSCH carried by the second MAC CE may be a dynamically scheduled PDSCH.
  • the second DCI may be carried on a multicast or broadcast PDCCH. That is, the second DCI may be a multicast DCI or a broadcast DCI.
  • sending the second indication information through the multicast DCI or the broadcast DCI is beneficial to reduce the indication overhead compared to sending the corresponding second indication information to each terminal device.
  • the second DCI may also be carried on a unicast PDCCH.
  • the second DCI may also have one or more of the following designs:
  • the second DCI is obtained by adding a field in a DCI format of the existing protocol, where the added field is used to carry the second indication information.
  • the second method is to obtain the first DCI by designing a DCI format different from that in the existing protocol, that is, the second DCI is different from the DCI format in the existing protocol. Compared with the DCI format in the existing protocol, the second DCI is A new DCI format.
  • the second DCI corresponds to a new RNTI, and the RNTI is used to scramble the second DCI.
  • the scrambled RNTI has the same value for multiple terminal devices, and multiple terminal devices can detect and decode the second DCI.
  • the terminal device may determine the position of the second time window based on two or three of the end time of the second time window, the duration of the second time window, and the start time of the second time window.
  • the end time of the second time window, the duration of the second time window and the start time of the second time window are introduced respectively below:
  • the ending moment of the second time window is not later than the transmission moment T 1 of the first physical downlink channel carrying the second MAC CE or the second DCI.
  • the end moment of the second time window may be equal to the transmission moment T 1 of the first physical downlink channel.
  • the end moment of the second time window is before the transmission moment T1 of the first physical downlink channel.
  • the transmission time T1 of the first physical downlink channel may be the transmission start time of the first physical downlink channel or the transmission end time of the first physical downlink channel.
  • the transmission time T1 in this application is the transmission time understood by the alignment between the network device and the terminal device.
  • the transmission time T1 of the first physical downlink channel may be the first physical downlink channel sending time.
  • the transmission moment T1 of the first physical downlink channel may be the receiving moment of the first physical downlink channel.
  • the network device finds that there is less data to be transmitted within the second time window, which can be postponed until later to send together with the later data, so it decides not to send the first downlink transmission.
  • the network device sends second indication information to the terminal device, telling the terminal device that the network device did not send the first downlink transmission within the second time window before the transmission time T1 of the first physical downlink channel .
  • the terminal device determines that the first downlink transmission received within the second time window before the transmission time T1 of the first physical downlink channel is invalid.
  • the end time of the second time window is determined by the transmission time T1 of the first physical downlink channel and the second time length ⁇ T2, and the second time length ⁇ T2 is preset or indicated by the second indication information.
  • the second time length ⁇ T2 is greater than zero.
  • the fact that the second time length ⁇ T2 is preset means that the second time length ⁇ T2 is predetermined by the protocol.
  • the second time length ⁇ T2 being preset means that the second time length ⁇ T2 is configured by the network device through RRC signaling.
  • the end time of the second time window is determined based on the transmission time T1 of the first physical downlink channel and the second time length ⁇ T2, It is beneficial to make the end time of the second time window be before the transmission time T1 of the first physical downlink channel, so as to better match the sending processing overhead on the network device side.
  • the end time of the second time window is the end time of the third time unit
  • the transmission time T 1 , the second time length ⁇ T2 and the time T 3 of the first physical downlink channel are shown in FIG. 12 .
  • the end instant of time unit 4 is equal to instant T 3 . Since time unit 4 is the latest time unit whose end time is not later than time T3 , the third time unit is time unit 4.
  • the transmission time T 1 , the second time length ⁇ T2 and the time T 3 of the first physical downlink channel are shown in FIG. 13 .
  • the start time of time unit 4 is earlier than time T 3 . Since time unit 4 is the latest time unit whose end time is not later than time T3 , the third time unit is time unit 4.
  • the end time of the second time window is determined by the transmission time T1 of the first physical downlink channel.
  • the end time of the second time window is the end time of the fourth time unit
  • the fourth time unit is the latest time unit whose end time is not later than time T1 . Based on this possible implementation, it is beneficial to ensure that the second time window ends at the end of a time unit, which conforms to the feature that network devices and terminal devices transmit in units of time units, and can reduce implementation complexity.
  • the transmission time T1 of the first physical downlink channel is shown in FIG. 14 .
  • the end time of time unit 4 is equal to the transmission time T 1 of the first physical downlink channel. Since time unit 4 is the latest time unit whose end time is not later than the transmission time T1 of the first physical downlink channel, the fourth time unit is time unit 4 .
  • the transmission time T1 of the first physical downlink channel is as shown in FIG. 15 .
  • the start time of time unit 4 is earlier than the transmission time T 1 of the first physical downlink channel. Since time unit 4 is the latest time unit whose end time is not later than the transmission time T1 of the first physical downlink channel, the fourth time unit is time unit 4 .
  • the second indication information may also be used to directly indicate the end time of the second time window, which is beneficial to reduce the calculation amount of the terminal device and reduce the power consumption of the terminal device.
  • the duration of the second time window is preset or indicated by the second indication information.
  • the duration of the second time window being preset means that the duration of the second time window is predetermined by the protocol. Or, that the duration of the second time window is preset means that the duration of the second time window is configured by the network device through RRC signaling.
  • preset the duration of the second time window is beneficial to save the indication overhead of the duration of the second time window.
  • the duration of the second time window is indicated by the second indication information, the duration of the second time window can be changed dynamically, and the duration of the second time window can be more flexible.
  • the starting moment of the second time window is preset or indicated by the second indication information.
  • the fact that the start time of the second time window is preset means that the start time of the second time window is predetermined by the protocol.
  • the fact that the start time of the second time window is preset means that the start time of the second time window is configured by the network device through RRC signaling.
  • the starting moment of the second time window is the start of the detection opportunity of the last SPS PDSCH carrying the second MAC CE Time or end time
  • the start time of the second time window is the start time or end time of the last detection opportunity carrying the first indication and the new second DCI.
  • presetting the start time of the second time window it is beneficial to save the indication overhead of the end time of the second time window. Indicating the start time of the second time window by using the second indication information is also beneficial to reducing the calculation amount of the terminal device and reducing the power consumption of the terminal device.
  • the terminal device determines based on the second indication information that the network device has not sent the first downlink transmission within the second time window.
  • the terminal determines the second time window
  • the first downlink transmission is not received within the second time window
  • no processing is performed. If the first downlink transmission is received, the first downlink transmission is considered invalid, and the first downlink transmission reception information and measurement results are ignored.
  • the terminal device determines that the blind detection of the PDCCH within the second time window is invalid.
  • the terminal device may ignore the downlink transmission and uplink transmission scheduled by the DCI on the PDCCH within the second time window. The measurement and reporting indicated by the DCI on the PDCCH are ignored.
  • the terminal device flushes out the buffered dynamically scheduled PDSCH or SPS PDSCH received within the second time window, and does not need to feed back the PDSCH received in the second time window.
  • the terminal device deletes the measurement information on the CSI-RS within the second time window.
  • the first downlink transmission includes any one or more of the following: PDCCH, dynamically scheduled PDSCH, SPS PDSCH, CSI-RS or SSB.
  • the first downlink transmission includes PDCCH, dynamically configured PDSCH, SPS PDSCH, CSI-RS and SSB.
  • the network device can dynamically shut down many downlink transmissions, which is beneficial to save the power consumption of the network device.
  • the first downlink transmission includes: PDCCH, dynamically scheduled PDSCH, SPS PDSCH and CSI-RS, and the first downlink transmission does not include SSB.
  • SSB transmission not only terminal devices in connected state need to receive, but also terminal devices in idle state or inactive state need to receive, but terminal devices in idle state or inactive state may not be able to successfully receive the second indication information. Therefore, reserving SSB transmission in the second time window helps to maintain SSB reception and measurement of idle or inactive terminal devices, and avoids measurement errors caused by network devices not sending SSB but idle or inactive terminal devices trying to detect SSB , resulting in unnecessary operations such as cell reselection.
  • the cycle of SSB transmission itself is relatively large, and the proportion of the time domain is relatively small, and the network device sending SSB within the second time window will not bring a lot of power consumption to the network device.
  • the first downlink does not include the PDCCH scrambled by the SSB and the P-RNTI.
  • the PDCCH scrambled by the P-RNTI is used to schedule the user's paging indication, and where each user receives the corresponding PDCCH scrambled by the P-RNTI is pre-configured. For a certain UE, if the base station skips the PDCCH transmission opportunity scrambled by the P-RNTI this time, it needs to wait until a pre-configured opportunity, and the waiting delay is relatively large. Therefore, reserving the PDCCH transmission scrambled by the P-RNTI in the second time window helps to maintain the user's paging reception.
  • the PDCCH includes one or more of the following: PDCCH scrambled by C-RNTI, PDCCH scrambled by CS-RNTI, PDCCH scrambled by SFI-RNTI, PDCCH scrambled by INT-RNTI PDCCH scrambled by CI-RNTI, PDCCH scrambled by TPC-PUCCH-RNTI, PDCCH scrambled by TPC-PUSCH-RNTI, PDCCH scrambled by TPC-SRS-RNTI, PDCCH scrambled by AI-RNTI, SI-RNTI scrambled PDCCH, RA-RNTI scrambled PDCCH, TC-RNTI scrambled PDCCH, or P-RNTI scrambled PDCCH.
  • the network device may not receive the first uplink transmission within the second time window.
  • the second indication information also indicates that the network device does not receive the first uplink transmission within the second time window.
  • the terminal device may also determine that the first uplink transmission sent within the second time window is invalid based on the second indication information, that is, the terminal device considers that the first uplink transmission fails to be received at the network device side. Based on this possible implementation, the network device can not only turn off the sending of the first downlink transmission, but also turn off the receiving of the first uplink transmission and the signal processing corresponding to the first uplink transmission, so as to further reduce the power consumption of the network device.
  • the first uplink transmission may include any one or more of the following: GB PUSCH, CG PUSCH, PUCCH, PRACH, SRS.
  • the terminal device if the first uplink transmission includes GB PUSCH, the terminal device does not consider it necessary to send GB PUSCH within the second time window, that is, the terminal device does not expect GB PUSCH to exist within the second time window.
  • the PUCCH may include one or more of the following: PUCCH bearing HARQ-ACK of dynamically scheduled PDSCH, PUCCH bearing HARQ-ACK of SPS PDSCH, PUCCH bearing CSI, bearing PUCCH of SR or BFR.
  • the second indication information may indicate that the network device does not send the first downlink transmission within the second time window in an explicit indication manner or an implicit indication manner.
  • the second indication information is an information bit, and different state values of the information bit are used to indicate different information.
  • the first state value of the second indication information indicates that the network device has not sent the first downlink transmission within the second time window; the second state value of the second indication information indicates that the network device sends the first downlink transmission within the second time window .
  • the second indication information is a 1-bit information bit.
  • the 1-bit status value is 1, it indicates that the network device has not sent the first downlink transmission within the second time window; when the 1-bit status value is 0 , instructing the network device to send the first downlink transmission within the second time window.
  • the 1-bit status value is 0, it indicates that the network device has not sent the first downlink transmission within the second time window; when the 1-bit status value is 1, it indicates that the network device sends the first downlink transmission within the second time window. downlink transmission.
  • the second indication information is a 2-bit information bit.
  • the 2-bit status value is 11, it indicates that the network device has not sent the first downlink transmission within the second time window; when the 2-bit status value is 00, it indicates that the network device sends the first downlink transmission within the second time window. Line transmission.
  • the 2-bit status value is 00, it indicates that the network device has not sent the first downlink transmission within the second time window; when the 2-bit status value is 11, it indicates that the network device sends the first downlink transmission within the second time window. downlink transmission.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device confirms that the value of the second indication information is the second state value. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining valid transmissions within the second time window as invalid transmissions.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device confirms that the value of the second indication information is the first state value. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining valid transmissions within the second time window as invalid transmissions.
  • the terminal device determines the value of the second indication information based on the RRC signaling sent by the network device is the first state value or the second state value. Based on this possible implementation manner, the value of the second indication information can be flexibly determined.
  • the terminal device determines whether the network device sends the first downlink transmission within the second time window by detecting whether the second indication information exists in the second MAC CE or the second DCI.
  • the second indication information "exists" indicates that the network device has not sent the first downlink transmission within the second time window, that is, the first downlink transmission is invalid;
  • the second indication information "absence” indicates that the network device The device sends the first downlink transmission within the second time window.
  • the second indication information "absence” indicates that the network device has not sent the first downlink transmission within the second time window, that is, the first downlink transmission is invalid; Send the first downlink transmission within.
  • the terminal device receives and decodes the SPS PDSCH at the preset time-frequency position, and queries the data after decoding MAC CE included in the block. If the second MAC CE is included, that is, the second indication information "exists", the terminal device does not need to receive the first downlink transmission within the second time window, that is, the first downlink transmission is invalid. When the data block does not contain the second MAC CE, that is, the second indication information "does not exist", the terminal device needs to receive the first downlink transmission within the second time window.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device confirms that the second indication information does not exist. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining valid transmissions within the second time window as invalid transmissions.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device confirms that the second indication information exists. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining valid transmissions within the second time window as invalid transmissions.
  • the terminal device determines whether the second indication information exists based on the RRC signaling sent by the network device. Based on this possible implementation manner, it may be flexibly determined whether the second indication information exists.
  • the network device does not send the first downlink transmission within the second time window, which may also be understood as being in an inactive state within the second time window.
  • the fact that the network device sends the first downlink transmission within the second time window may also be understood as being in an active state within the second time window.
  • the second indication information indicating that the network device does not send the first downlink transmission within the second time window may also be understood as: the second indication information indicates that the network device is in an inactive state within the second time window.
  • the second indication information indicating that the network device sends the first downlink transmission within the second time window may also be understood as: the second indication information indicates that the network device is in the active state within the second time window.
  • the network device may send the first downlink transmission and/or receive the first uplink transmission on the available time-frequency resource after the end of the second time window; the terminal device may send the first downlink transmission on the available time-frequency resource after the end of the second time window Re-receive the first downlink transmission and/or send the first uplink transmission. Based on this possible implementation manner, energy saving of network equipment can be realized without sacrificing data transmission.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device determines that the network device has sent the first downlink channel within the second time window. transmission, that is, the terminal device determines that the first downlink transmission received within the second time window is valid. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining valid transmissions within the second time window as invalid transmissions.
  • the terminal device if the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, the terminal device determines that the network device has not sent the first downlink channel within the second time window. transmission, that is, the terminal device determines that the first downlink transmission received within the second time window is invalid. Based on this possible implementation manner, it is beneficial to prevent the terminal device from determining invalid transmissions within the second time window as valid transmissions.
  • the terminal device determines based on the radio resource control RRC signaling sent by the network device that the network device is in Whether the first downlink transmission is sent within the second time window. Based on this possible implementation, when the terminal device fails to decode the first physical downlink channel carrying the second MAC CE or the second DCI, it can be flexibly determined that the network device has not sent the first downlink channel within the second time window. transmission.
  • the network device can dynamically indicate whether the network device itself sends the first downlink transmission within the second time window through MAC CE and DCI, and the network device side can more flexibly turn off the downlink transmission , which is beneficial to reduce the performance loss of the terminal equipment. Moreover, by turning off the first downlink transmission first, and then indicating to the terminal device that the network device has turned off the first downlink transmission, the network device does not need to predict the transmission volume of the first downlink transmission at a subsequent time to determine whether to turn off the first downlink transmission. The downlink transmission is beneficial to save the power consumption of the network device, and improves the flexibility of the network device to send downlink transmission or silent downlink transmission.
  • the network device and the terminal device include hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and method steps of the examples described in the embodiments disclosed in the present application. Whether a certain function is executed by hardware or computer software drives the hardware depends on the specific application scenario and design constraints of the technical solution.
  • FIG. 16 and FIG. 17 are schematic structural diagrams of possible communication devices provided by the embodiments of the present application. These communication apparatuses may be used to realize the functions of the terminal device or the network device in the foregoing method embodiments, and thus also realize the beneficial effects of the foregoing method embodiments.
  • the communication device may be one of the terminal devices 120a-120j shown in FIG. 2, or the network device 110a or 110b shown in FIG. Or a module (such as a chip) of a network device.
  • a communication device 1600 includes a processing unit 1610 and a transceiver unit 1620 .
  • the communication apparatus 1600 is configured to implement functions of the terminal device or the network device in the method embodiment shown in FIG. 4 above.
  • the first indication information is carried in the first MAC CE or the first DCI; the processing unit 1610 is configured not to receive the first downlink transmission within the first time window based on the first indication information.
  • the transceiver unit 1620 is used to send the first indication information to the terminal device, and the first indication information is used to indicate that the terminal device is in the first time window
  • the first downlink transmission is not received, and the first indication information is carried in the first MAC CE signaling or the first DCI signaling.
  • processing unit 1610 and the transceiver unit 1620 can be directly obtained by referring to related descriptions in the method embodiment shown in FIG. 4 , and details are not repeated here.
  • the communication apparatus 1600 is configured to implement functions of the terminal device or the network device in the method embodiment shown in FIG. 10 above.
  • the transceiver unit 1620 is used to receive the second indication information, the second indication information indicates that the network device has not sent the second time window within the second time window.
  • the second indication information is carried on the first MAC CE or the first DCI, and the end time of the second time window is no later than the transmission time of the first physical downlink channel carrying the second MAC CE or the second DCI T 1 ;
  • the processing unit 1610 is configured to determine, based on the second indication information, that the first downlink transmission received within the second time window is invalid.
  • the processing unit 1610 is used to not send the first downlink transmission within the second time window; the transceiver unit 1620 is used to send the first downlink transmission to the terminal device
  • the second indication information indicates that the network device has not sent the first downlink transmission within the second time window, the second indication information is carried in the first MAC CE signaling or the first DCI signaling, and the second time window
  • the end time of is not later than the transmission time T 1 of the first physical downlink channel carrying the second MAC CE or the second DCI.
  • processing unit 1610 and the transceiver unit 1620 can be directly obtained by referring to the relevant descriptions in the method embodiment shown in FIG. 10 , and details are not repeated here.
  • a communication device 1700 includes a processor 1710 and an interface circuit 1720 .
  • the processor 1710 and the interface circuit 1720 are coupled to each other.
  • the interface circuit 1720 may be a transceiver or an input-output interface.
  • the communication device 1700 may further include a memory 1730 for storing instructions executed by the processor 1710 or storing input data required by the processor 1710 to execute the instructions or storing data generated by the processor 1710 after executing the instructions.
  • the processor 1710 is used to implement the functions of the processing unit 1610
  • the interface circuit 1720 is used to implement the functions of the transceiver unit 1620 .
  • the terminal device chip implements the functions of the terminal device in the above method embodiment.
  • the terminal device chip receives information from other modules in the terminal device (such as radio frequency modules or antennas), and the information is sent to the terminal device by the network device; or, the terminal device chip sends information to other modules in the terminal device (such as radio frequency modules or antenna) to send information, which is sent by the terminal device to the network device.
  • the network equipment module implements the functions of the network equipment in the above method embodiments.
  • the network equipment module receives information from other modules in the network equipment (such as radio frequency modules or antennas), and the information is sent to the network equipment by the terminal equipment; or, the network equipment module sends information to other modules in the network equipment (such as radio frequency modules or antenna) to send information, which is sent by the network device to the terminal device.
  • the network device module here may be a baseband chip of the network device, or a DU or other modules, and the DU here may be a DU under an open radio access network (O-RAN) architecture.
  • OF-RAN open radio access network
  • the processor in the embodiments of the present application can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a general-purpose processor can be a microprocessor, or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only Memory, registers, hard disk, removable hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC can be located in a network device or a terminal device. Certainly, the processor and the storage medium may also exist in the network device or the terminal device as discrete components.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer program or instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be downloaded from a website, computer, A server or data center transmits to another website site, computer, server or data center by wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrating one or more available media.
  • the available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; or it may be a semiconductor medium, such as a solid state disk.
  • the computer readable storage medium may be a volatile or a nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

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Abstract

本申请提供了一种传输指示方法及通信装置，该方法包括：终端设备接收媒体接入控制-控制元素MAC CE或下行控制信息DCI，终端设备基于MAC CE或DCI中的指示信息在一个时间窗内不接收部分或全部下行传输。基于本申请提供的方案，能够动态地、灵活地为终端设备配置非连续接收DRX传输，有利于降低终端设备的性能损失。

Description

一种传输指示方法及通信装置
本申请要求于2021年12月02日提交中国专利局、申请号为202111460771.5、申请名称为“一种传输指示方法及通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种传输指示方法及通信装置。
背景技术
随着蜂窝通信技术的发展，网络设备(如基站)功率消耗越来越高。例如，从第四代(4th Generation，4G)通信技术发展到第五代(5th Generation，5G)统计数，网络设备使用的频谱越来越宽，配置的发送天线数目越来越多，网络设备(如基站)功率消耗增加了2～3倍。此外，网络设备的功率消耗与业务负载的可能不成正比，例如，多个传输时间间隔(transmission time interval，TTI)上网络设备功耗包括与负载相关的动态功耗以及与负载无关的静态功耗，此时，网络设备的功率消耗与业务负载的不成正比。
新空口(new radio，NR)协议支持给终端设备配置非连续接收(dis-continuous reception，DRX)传输，使终端设备只在规定时间段接收某些信道及参考信号。网络设备为终端设备配置的DRX为周期性的。例如，如图1所示，网络设备可以为终端设备配置长DRX周期的时间窗参数。该时间窗参数包括每个时间窗的长度P long(又称为DRX period)、起始子帧偏移S sf、起始子帧内onDuration状态的起始时隙偏移值S slot、onDuration状态的持续时间T。终端设备在每个时间窗中onDuration状态的起始时隙开始时刻进入激活态，一直到onDuration状态结束，终端设备转入非激活态。终端设备只有在激活态下才会去监测绝大多数调度数据的下行控制信道(physical downlink control channel,PDCCH)，从而根据PDCCH的指示进行数据收发。对于给终端设备配置DRX传输，由于DRX的周期一般比较长，进行DRX配置和重配置的时延也较大，这种终端设备的DRX传输方案比较适用于较大时间粒度上、半静态地进行数据传输，往往会引起较大的性能损失，如终端设备体验速率损失。
因此，如何保证通信性能，同时降低网络设备和终端设备的功耗，是亟待解决的问题。
发明内容
本申请实施例提供了一种传输指示方法及通信装置，能够动态地、灵活地配置DRX传输，有利于降低终端设备的性能损失，同时降低网络设备和终端设备的功耗。
第一方面，本申请提供了一种传输指示方法，该方法包括：终端设备接收第一指示信息，该第一指示信息指示终端设备在第一时间窗内不接收第一下行传输，该第一指示信息承载于第一媒体接入控制-控制元素(medium access control-control element，MAC CE)或第一下行控制信息(downlink control information，DCI)中；终端设备基于第一指示信息在第一时间窗内不接收第一下行传输。基于第一方面所描述的方法，终端设备通过MAC CE或DCI中的第一指示信息，能够动态的确定是否在第一时间窗内接收下行传输。有利于降低终端设备的性能损失，同时降低网络设备和终端设备的功耗。
在一种可能的实现中，第一MAC CE或第一DCI承载于组播或广播的物理下行信道。由 于组播或广播的物理下行信道是发给一组终端设备的，而不是用户特定的(UE-specific)，第一指示信息通过组播或广播的物理下行信道发送给终端设备，避免了网络设备为每个终端设备分别发送第一指示信息造成的信令开销大的问题，降低了网络设备的信令开销。
在一种可能的实现中，第一时间窗的起始时刻由第一物理下行信道的传输时刻T 1确定，该第一物理下行信道为承载第一MAC CE或第一DCI的物理下行信道。
在一种可能的实现中，第一时间窗的起始时刻由第一物理下行信道的传输时刻T 1和第一时间长度ΔT1确定，该第一物理下行信道为承载第一MAC CE或第一DCI的物理下行信道，第一时间长度ΔT1是预设的或者是由第一指示信息指示的。由于终端设备接收第一物理下行信道之后，需要一定时间才能译码出第一指示信息。基于第一物理下行信道的传输时刻T 1和第一时间长度ΔT1确定第一时间窗的起始时刻，能够保证第一时间窗的起始时刻位于终端设备解析出第一指示信息的时刻之后，避免出现终端设备在解析第一指示信息之前，不确定是否需要进行下行接收的情况而造成的通信异常的问题。
在一种可能的实现中，第一时间窗的起始时刻为第一时间单元的起始时刻，该第一时间单元为起始时刻不早于时刻T 2的最早时间单元，时刻T 2＝T 1+ΔT1。可选的，时间单元可以是符号、子时隙、时隙或子帧等。基于该可能的实现方式，有利于保证第一时间窗从一个时间单元的起始时刻开始，符合网络设备和终端设备以时间单元为单位进行传输的特征，可以降低实现复杂度。
在一种可能的实现中，第一时间长度ΔT1大于或等于第一门限，该第一门限为终端设备支持的、对第一物理下行信道的最短处理时长。基于该可能的实现方式，有利于保证确定出的第一时间窗的起始时刻位于终端设备解析出第一指示信息的时刻之后，避免出现终端设备在解析第一指示信息之前，不确定是否需要进行下行接收的情况。
在一种可能的实现中，第一门限可以是协议预先规定的，也即终端设备支持的、对第一物理下行信道的最短处理时长为协议预先规定的，为方便描述，以下用将终端设备支持的、对第一物理下行信道的最短处理时长简称为最短处理时长。
在一种可能的实现中，第一物理下行信道为第一物理下行共享信道(physical downlink shared channel，PDSCH)，最短处理时长为终端设备接收第一PDSCH到发送该第一PDSCH对应的混合自动重传请求确认(hybrid automatic repeat request-acknowledgment，HARQ-ACK)的最短处理时长T proc,1；或者，最短处理时长为终端设备接收第一PDSCH到完成该第一PDSCH译码需要的最短处理时长
Figure PCTCN2022134214-appb-000001
在一种可能的实现中，第一物理下行信道为第一PDCCH，最短处理时长为终端设备接收第一PDCCH到发送该第一PDCCH调度的物理上行共享信道(physical uplink shared channel,PUSCH)的最短处理时长T proc,2；或者，最短处理时长为终端设备接收第一PDCCH到完成该第一PDCCH译码需要的最短处理时长
Figure PCTCN2022134214-appb-000002
在一种可能的实现中，协议预先规定最短处理时长包含N个不同情况下的最短处理时长，N大于1，第一门限值为上述N个最短处理时长中最大值；或者，第一门限值为上述N个最短处理时长中第n个值，其中1≤n≤N，n是网络设备预先指示的。
在一种可能的实现中，第一时间窗的起始时刻为第二时间单元的起始时刻，该第二时间单元为起始时刻不早于第一物理下行信道的传输时刻T 1的最早时间单元。基于该可能的实现方式，有利于保证第一时间窗从一个时间单元的起始时刻开始，符合网络设备和终端设备以时间单元为单位进行传输的特征，可以降低实现复杂度。
在一种可能的实现中，第一物理下行信道的传输时刻T 1为第一物理下行信道的传输起始时刻或传输结束时刻。
在一种可能的实现中，第一时间窗的持续时长是预设的。通过预设第一时间窗的持续时长有利于节省第一时间窗的持续时长的指示开销。
在一种可能的实现中，第一时间窗的持续时长由第一指示信息指示的。通过第一指示信息来指示第一时间窗的持续时长，第一时间窗的持续时长可以动态改变，第一时间窗的持续时长能够更加灵活。
在一种可能的实现中，第一下行传输包括以下的任意一种或几种：PDCCH、动态调度的PDSCH、半静态调度的下行共享物理信道(semi-persistent scheduling PDSCH，SPS PDSCH)、信道状态信息-参考信号(channel state information reference signal，CSI-RS)或同步信号-广播信道块(synchronization signal/PBCH，SSB)。例如，第一下行传输包括PDCCH、动态调度的PDSCH、SPS PDSCH、CSI-RS和SSB，这样能够更大程度地节省网络设备和终端设备的功耗。
在另一种可能的实现中，第一下行传输包括：PDCCH、动态配置的PDSCH、SPS PDSCH和CSI-RS，且第一下行传输不包括SSB。对于SSB传输，不仅仅连接态终端设备需要接收，空闲态或非激活态终端设备也需要接收，而空闲态或非激活态终端设备未必可以成功接收第一指示信息。因此在第一时间窗内保留SSB传输有助于维持空闲态或非激活态终端设备的SSB接收和测量，避免网络设备不发送SSB但是空闲态或非激活态终端设备尝试检测SSB造成的测量错误，避免由此造成不必要的小区重选等操作。另一方面，SSB发送本身周期较大，时域占比较小，网络设备在第一时间窗内发送一下SSB不会给网络设备带来很大的功耗。
在又一种可能的实现中，第一下行传输不包括SSB和寻呼无线网络临时标识(paging radio network temporary identifier，P-RNTI)加扰的PDCCH。P-RNTI加扰的PDCCH用于调度终端设备的寻呼指示，而每个终端设备接收对应的P-RNTI加扰的PDCCH的位置是预配置的。对于某个终端设备，如果网络设备跳过一个P-RNTI加扰的PDCCH传输时机，需要等到下一个预配置时机，等待时延较大。因此，在第一时间窗内保留P-RNTI加扰的PDCCH传输有助于维持终端设备的寻呼接收。
在一种可能的实现中，第一下行传输包括PDCCH时，PDCCH包括以下一项或多项：小区无线网络临时标识(cell access RNTI，C-RNTI)加扰的PDCCH、配置调度无线网络临时标识(configured scheduling RNTI，CS-RNTI)加扰的PDCCH、时隙格式指示无线网络临时标识(slot format indication RNTI，SFI-RNTI)加扰的PDCCH、中断传输指示无线网络临时标识(interrupted transmission indication RNTI，INT-RNTI)加扰的PDCCH、取消指示无线网络临时标识(cancellation indication RNTI，CI-RNTI)加扰的PDCCH、物理上行控制信道传输功率控制无线网络临时标识(transmit power control-PUCCH-RNTI，TPC-PUCCH-RNTI)加扰的PDCCH、物理上行共享信道传输功率控制无线网络临时标识(transmit power control-PUSCH-RNTI，TPC-PUSCH-RNTI)加扰的PDCCH、探测参考信号传输功率控制无线网络临时标识(transmit power control-SRS-RNTI，TPC-SRS-RNTI)加扰的PDCCH、可用性指示无线网络临时标识(availability indicator RNTI，AI-RNTI)加扰的PDCCH、系统信息无线网络临时标识(system information RNTI，SI-RNTI)加扰的PDCCH、随机接入无线网络临时标识(random access RNTI，RA-RNTI)加扰的PDCCH、临时小区无线网络临时标识(temporary cell access RNTI，TC-RNTI)加扰的PDCCH或寻呼无线网络临时标识(paging RNTI，P-RNTI)加扰的PDCCH。即终端设备在第一时间窗内不对这些RNTI加扰的PDCCH进行盲检。
在一种可能的实现中，第一指示信息还指示终端设备在第一时间窗内不发送第一上行传 输。相应地，终端设备还可基于第一指示信息在第一时间窗内不发送第一上行传输。基于该可能的实现方式，终端设备可以动态关断第一下行传输的接收和第一上行传输的发送，有利于节省网络设备功耗的同时，节省终端设备的功耗。
在一种可能的实现中，第一上行传输可以包括以下的任意一种或几种：基于授权的物理上行共享信道(grant-basedphysical downlink shared channel，GB PUSCH)、配置授权的物理上行共享信道(configured grantphysical downlink shared channel，CG PUSCH)、物理上行控制信道(physical uplink control channel，PUCCH)、物理随机接入信道(physical random access channel，PRACH)、上行探测参考信号(Sounding Reference Signal，SRS)。
在一种可能的实现中，第一上行传输包括PUCCH时，PUCCH可包括以下一项或多项：承载动态调度的PDSCH的HARQ-ACK的PUCCH、承载SPS PDSCH的HARQ-ACK的PUCCH、承载CSI的PUCCH，承载调度请求(scheduling request，SR)或波束故障恢复(beam failure recovery，BFR)的PUCCH。
在一种可能的实现中，第一指示信息通过显示指示的方式指示终端设备在第一时间窗内不接收第一下行传输，第一指示信息的第一状态值指示终端设备在第一时间窗内不接收第一下行传输；第一指示信息的第二状态值指示终端设备在第一时间窗内接收第一下行传输。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备确认第一指示信息的取值为第二状态值。基于该可能的实现方式，有利于终端设备不漏收下行传输。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备确认第一指示信息的取值为第一状态值。基于该可能的实现方式，有利于节省终端设备的功耗。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的无线资源控制(radio resource control，RRC)信令确定第一指示信息的取值为第一状态值或第二状态值。基于该可能的实现方式，可以灵活地确定第一指示信息的取值。
在一种可能的实现中，第一指示信息通过隐式指示的方式指示终端设备在第一时间窗内不接收第一下行传输，第一指示信息的“存在”指示终端设备在第一时间窗内不接收第一下行传输；第一指示信息的“不存在”指示终端设备在第一时间窗内接收第一下行传输。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备确认第一指示信息不存在。基于该可能的实现方式，有利于终端设备不漏收下行传输，保证通信质量。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备确认第一指示信息存在。基于该可能的实现方式，有利于节省终端设备的功耗。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的RRC信令确定第一指示信息是否存在。基于该可能的实现方式，可以灵活地确定第一指示信息是否存在。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备在第一时间窗内接收第一下行传输。基于该可能的实现方式，有利于终端设备不漏收下行传输。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道 译码不成功，终端设备在第一时间窗内不接收第一下行传输。基于该可能的实现方式，有利于节省终端设备的功耗。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的无线资源控制RRC信令确定在第一时间窗内是否接收第一下行传输。基于该可能的实现方式，在终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功时，可以灵活地确定在第一时间窗内是否接收第一下行传输。
在一种可能的实现中，第一指示信息承载于第一MAC CE且第一MAC CE承载于SPS PDSCH：当第一指示信息指示在第一时间窗内不进行第一下行传输，且该第一时间窗内包含该SPS PDSCH的下一个传输时机时，终端设备执行以下任意一种操作：
(1)在该下一个传输时机上不接收SPS PDSCH。这样有利于节省终端设备的功耗。
(2)终端设备在该下一个传输时机上接收SPS PDSCH，并根据该下一个传输时机上接收的SPS PDSCH中的第一指示信息确定下一个第一时间窗内是否接收第一下行传输。这样有利于获取最大的调度灵活性。
(3)终端设备根据网络设备发送的RRC信令，确定在该下一个传输时机上是否接收SPS PDSCH。这样可以更加灵活地确定在第一时间窗内是否接收SPS PDSCH。
在一种可能的实现中，第一指示信息承载于第一DCI：当第一指示信息指示在第一时间窗内不接收第一下行传输，且第一时间窗内包含第一DCI的下一个传输时机时，终端设备执行以下任意一种操作：
(1)在该下一个传输时机上不接收第一DCI。这样有利于节省终端设备的功耗。
(2)终端设备在该下一个传输时机上接收第一DCI，并根据该下一个传输时机上接收的第一DCI中的第一指示信息确定下一个第一时间窗内是否接收第一下行传输。这样有利于获取最大的调度灵活性。
(3)终端设备根据网络设备发送的RRC信令，确定在该下一个传输时机上是否接收第一DCI，这样可以更加灵活地确定在第一时间窗内是否接收第一DCI。
第二方面，本申请提供了一种传输指示方法，该方法包括：网络设备向终端设备发送第一指示信息，该第一指示信息用于指示终端设备在第一时间窗内不接收第一下行传输，该第一指示信息承载于第一MAC CE信令或第一DCI信令；网络设备在第一时间窗内不发送第一下行传输。
在一种可能的实现中，第一MAC CE或第一DCI承载于组播或广播的物理下行信道。
在一种可能的实现中，第一时间窗的起始时刻为第一时间单元的起始时刻，该第一时间单元为起始时刻不早于时刻T 2的最早时间单元，时刻T 2＝T 1+ΔT1；其中，T 1为第一物理下行信道的传输时刻，ΔT1为第一时间长度，第一物理下行信道为承载第一MAC CE或第一DCI的物理下行信道，第一时间长度ΔT1为预设的，或者，第一指示信息还指示第一时间长度ΔT1。
在一种可能的实现中，第一时间长度ΔT1大于或等于第一门限，该第一门限为终端设备可支持的、对第一物理下行信道的最短处理时长。
在一种可能的实现中，第一门限可以是协议预先规定的，也即终端设备支持的、对第一物理下行信道的最短处理时长为协议预先规定的，为方便描述，以下用将终端设备支持的、对第一物理下行信道的最短处理时长简称为最短处理时长。
在一种可能的实现中，第一物理下行信道为第一PDSCH，最短处理时长为终端设备接收第一PDSCH到发送该第一PDSCH对应的HARQ-ACK的最短处理时长T proc,1；或者，最短处理时长为终端设备接收第一PDSCH到完成该第一PDSCH译码需要的最短处理时长
Figure PCTCN2022134214-appb-000003
在一种可能的实现中，第一物理下行信道为第一PDCCH，最短处理时长为终端设备接收第一PDCCH到发送该第一PDCCH调度的PUSCH的最短处理时长T proc,2；或者，最短处理时长为终端设备接收第一PDCCH到完成该第一PDCCH译码需要的最短处理时长
Figure PCTCN2022134214-appb-000004
在一种可能的实现中，协议预先规定最短处理时长包含N个不同情况下的最短处理时长，N大于1，第一门限值为上述N个最短处理时长中最大值；或者，第一门限值为上述N个最短处理时长中第n个值，其中1≤n≤N，n是网络设备预先指示的。
在一种可能的实现中，第一时间窗的起始时刻为第二时间单元的起始时刻，该第二时间单元为起始时刻不早于第一物理下行信道的传输时刻T 1的最早时间单元。
在一种可能的实现中，第一物理下行信道的传输时刻T 1为第一物理下行信道的传输起始时刻或传输结束时刻。
在一种可能的实现中，第一时间窗的持续时长是预设的；或者，第一指示信息还指示第一时间窗的持续时长。
在一种可能的实现中，第一下行传输包括以下的任意一种或几种：PDCCH、动态调度的PDSCH、SPS PDSCH、CSI-RS或SSB。
在另一种可能的实现中，第一下行传输包括：PDCCH、动态调度的PDSCH、SPS PDSCH和CSI-RS，且第一下行传输不包括SSB。
在又一种可能的实现中，第一下行传输不包括SSB和P-RNTI加扰的PDCCH。
在一种可能的实现中，第一下行传输包括PDCCH时，PDCCH包括以下一项或多项：C-RNTI加扰的PDCCH、CS-RNTI加扰的PDCCH、SFI-RNTI加扰的PDCCH、INT-RNTI加扰的PDCCH、CI-RNTI加扰的PDCCH、TPC-PUCCH-RNTI加扰的PDCCH、TPC-PUSCH-RNTI加扰的PDCCH、TPC-SRS-RNTI加扰的PDCCH、AI-RNTI加扰的PDCCH、SI-RNTI加扰的PDCCH、RA-RNTI加扰的PDCCH、TC-RNTI加扰的PDCCH或P-RNTI加扰的PDCCH。即终端设备在第一时间窗内不对这些RNTI加扰的PDCCH进行盲检。
在一种可能的实现中，第一指示信息还指示终端设备在第一时间窗内不发送第一上行传输。相应地，网络设备在第一时间窗内不接收第一上行传输。
在一种可能的实现中，第一上行传输可以包括以下的任意一种或几种：GB PUSCH、CG PUSCH、PUCCH、PRACH、SRS。
可选的，第一上行传输包括PUCCH时，PUCCH可包括以下一项或多项：承载动态调度的PDSCH的HARQ-ACK的PUCCH、承载SPS PDSCH的HARQ-ACK的PUCCH、承载CSI的PUCCH，承载SR或BFR的PUCCH。
在一种可能的实现中，第一指示信息的第一状态值指示终端设备在第一时间窗内不接收第一下行传输；第一指示信息的第二状态值指示终端设备在第一时间窗内接收第一下行传输。
在另一种可能的实现中，第一指示信息“存在”指示终端设备在第一时间窗内不接收第一下行传输；第一指示信息“不存在”指示终端设备在第一时间窗内接收第一下行传输。
第二方面的有益效果可参见第一方面对应的有益效果，在此不赘述。
第三方面，本申请提供了一种传输指示方法，该方法包括：终端设备接收第二指示信息，该第二指示信息指示网络设备在第二时间窗内不发送第一下行传输，第二指示信息承载于第一MAC CE或第一DCI，该第二时间窗的结束时刻不晚于承载第二MAC CE或第二DCI的第一物理下行信道的传输时刻T 1；终端设备基于第二指示信息确定网络设备在第二时间窗内没有发送第一下行传输，即当终端设备在第二时间窗内接收了第一下行传输，该第一下行传输无效。
基于第三方面所描述的方法，终端设备通过MAC CE和DCI中的第二指示信息，能够动态的确定网络设备在第二时间窗内是否发送第一下行传输，有利于降低终端设备的性能损失。并且，通过使第二时间窗的结束时刻不晚于承载第二MAC CE或第二DCI的第一物理下行信道的传输时刻T 1，这样网络设备就不需要预测后续时间的第一下行传输的传输量来确定是否关断第一下行传输，有利于节省网络设备的功耗。
其中，第一物理下行信道的传输时刻T 1可以是第一物理下行信道的传输起始时刻或第一物理下行信道的传输结束时刻。
在一种可能的实现中，第二MAC CE或第二DCI承载于组播或广播的物理下行信道。由于组播或广播的物理下行信道是发给一组终端设备的，而不是用户特定的(UE-specific)，第二指示信息通过组播或广播的物理下行信道发送给终端设备，避免了网络设备为每个终端设备分别发送第二指示信息造成的信令开销大的问题，降低了网络设备的信令开销。
在一种可能的实现中，第二时间窗的结束时刻由第一物理下行信道的传输时刻T 1确定。
在一种可能的实现中，第二时间窗的结束时刻具体由第一物理下行信道的传输时刻T 1和第二时间长度ΔT2确定，第二时间长度ΔT2是预设的或者是由第二指示信息指示的。第二时间长度ΔT2大于0。由于网络设备在经历第二时间窗后，准备发送第二指示信息需要一定的处理时延，基于第一物理下行信道的传输时刻T 1和第二时间长度ΔT2确定第二时间窗的结束时刻，有利于使第二时间窗的结束时刻位于第一物理下行信道的传输时刻T 1之前，更加匹配网络设备侧的发送处理开销。
在一种可能的实现中，第二时间窗的结束时刻为第三时间单元的结束时刻，该第三时间单元为结束时刻不晚于时刻T 3的最晚时间单元，时刻T 3＝T 1-ΔT2。可选的，时间单元可以是符号、子时隙、时隙或子帧等。基于该可能的实现方式，有利于保证第二时间窗在一个时间单元的结束时刻结束，符合网络设备和终端设备以时间单元为单位进行传输的特征，可以降低实现复杂度。
在一种可能的实现中，第二时间窗的结束时刻为第四时间单元的结束时刻，该第四时间单元为结束时刻不晚于第一物理下行信道的传输时刻T 1的最晚时间单元。基于该可能的实现方式，有利于使第二时间窗的结束时刻位于第一物理下行信道的传输时刻T 1之前，更加匹配网络设备侧的发送处理开销。
在一种可能的实现中，第二时间窗的持续时长是预设的。通过预设第二时间窗的持续时长有利于节省第二时间窗的持续时长的指示开销。
在一种可能的实现中，第二时间窗的持续时长由第二指示信息指示的。通过第二指示信息来指示第二时间窗的持续时长，第二时间窗的持续时长可以动态改变，第二时间窗的持续时长能够更加灵活。
在一种可能的实现中，第一下行传输包括以下的任意一种或几种：PDCCH、动态调度的PDSCH、半静态调度的下行共享物理信道SPS PDSCH、CSI-RS或SSB。例如，第一下行传输包括PDCCH、动态调度的PDSCH、SPS PDSCH、CSI-RS和SSB，这样能够更大程度地节省网络设备的功耗。
在另一种可能的实现中，第一下行传输包括：PDCCH、动态调度的PDSCH、SPS PDSCH和CSI-RS，且第一下行传输不包括SSB。对于SSB传输，不仅仅连接态终端设备需要接收，空闲态或非激活态终端设备也需要接收，而空闲态或非激活态终端设备未必可以成功接收第二指示信息。因此在第二时间窗内保留SSB传输有助于维持空闲态或非激活态终端设备的SSB接收和测量，避免网络设备不发送SSB但是空闲态或非激活态终端设备尝试检测SSB造 成的测量错误，避免由此造成不必要的小区重选等操作。另一方面，SSB发送本身周期较大，时域占比较小，网络设备在第二时间窗内发送一下SSB不会给网络设备带来很大的功耗。
在又一种可能的实现中，第一下行不包括SSB和P-RNTI加扰的PDCCH。P-RNTI加扰的PDCCH用于调度用户的寻呼指示，而每个用户在什么位置接收对应的P-RNTI加扰的PDCCH的位置是预配置好的。对于某个终端设备，如果网络设备跳过一个P-RNTI加扰的PDCCH传输时机，需要等到下一个预配置时机，等待时延较大。因此，在第二时间窗内保留P-RNTI加扰的PDCCH传输有助于维持用户的寻呼接收。
可选的，第一下行传输包括PDCCH时，PDCCH包括以下一项或多项：C-RNTI加扰的PDCCH、CS-RNTI加扰的PDCCH、SFI-RNTI加扰的PDCCH、INT-RNTI加扰的PDCCH、CI-RNTI加扰的PDCCH、TPC-PUCCH-RNTI加扰的PDCCH、TPC-PUSCH-RNTI加扰的PDCCH、TPC-SRS-RNTI加扰的PDCCH、AI-RNTI加扰的PDCCH、SI-RNTI加扰的PDCCH、RA-RNTI加扰的PDCCH、TC-RNTI加扰的PDCCH或P-RNTI加扰的PDCCH。
在一种可能的实现中，第二指示信息还指示网络设备在第二时间窗内不接收第一上行传输。相应地，终端设备还可基于第二指示信息确定网络设备在第二时间窗内没有接收第一上行传输，即当终端设备在第二时间窗内发送了第一上行传输时，该第一上行传输无效，终端设备认为第一上行传输在网络设备侧接收失败。基于该可能的实现方式，网络设备可以动态关断第一下行传输和第一上行传输，有利于节省网络设备的功耗。
在一种可能的实现中，第一上行传输可以包括以下的任意一种或几种：GB PUSCH、CG PUSCH、PUCCH、PRACH、SRS。
在一种可能的实现中，如果第一上行传输包括GB PUSCH，终端设备不认为在第二时间窗内有需要发送GB PUSCH，即终端设备不期望第二时间窗内存在GB PUSCH。
可选的，如果第一上行传输包括PUCCH，PUCCH可包括以下一项或多项：承载动态调度的PDSCH的HARQ-ACK的PUCCH、承载SPS PDSCH的HARQ-ACK的PUCCH、承载CSI的PUCCH，承载SR或BFR的PUCCH。
在一种可能的实现中，第二指示信息通过显示指示的方式指示网络设备在第二时间窗内未发送第一下行传输，第二指示信息的第一状态值指示网络设备在第二时间窗内未发送第一下行传输；第二指示信息的第二状态值指示网络设备在第二时间窗内发送第一下行传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备确认第二指示信息的取值为第二状态值。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的有效传输确定为无效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备确认第二指示信息的取值为第一状态值。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的无效传输确定为有效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的RRC信令确定第二指示信息的取值为第一状态值或第二状态值。基于该可能的实现方式，可以灵活地确定第二指示信息的取值。
在一种可能的实现中，第二指示信息通过隐式指示的方式指示网络设备在第二时间窗内未发送第一下行传输，第二指示信息“存在”指示网络设备在第二时间窗内未发送第一下行传输，即第一下行传输失效；第二指示信息“不存在”指示网络设备在第二时间窗内发送第一下行传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道 译码不成功，终端设备确认第二指示信息不存在。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的有效传输确定为无效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备确认第二指示信息存在。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的无效传输确定为有效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的RRC信令确定第二指示信息是否存在。基于该可能的实现方式，可以灵活地确定在第二时间窗内接收的第一下行传输是否有效。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，则终端设备确定网络设备在第二时间窗内发送第一下行传输。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的有效传输确定为无效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，则终端设备确定网络设备在第二时间窗内没有发送第一下行传输。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的无效传输确定为有效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，则终端设备基于网络设备发送的RRC信令确定网络设备在第二时间窗内是否发送第一下行传输。基于该可能的实现方式，可以灵活地确定在第二时间窗内接收的第一下行传输是否有效。
第四方面，本申请提供了一种传输指示方法，该方法包括：网络设备在第二时间窗内不发送第一下行传输；网络设备向终端设备发送第二指示信息，该第二指示信息指示网络设备在第二时间窗内未发送第一下行传输，即指示终端设备在第二时间窗内接收的第一下行传输是无效的；第二指示信息承载于第一MAC CE信令或第一DCI信令，该第二时间窗的结束时刻不晚于承载第二MAC CE或第二DCI的第一物理下行信道的传输时刻T 1。
其中，第一物理下行信道的传输时刻T 1可以是第一物理下行信道的传输起始时刻或第一物理下行信道的传输结束时刻。
在一种可能的实现中，第二MAC CE或第二DCI承载于组播或广播的物理下行信道。
在一种可能的实现中，第二时间窗的结束时刻位于的时间单元为结束时刻不晚于时刻T 1的最晚时间单元。
在另一种可能的实现中，第二时间窗的结束时刻为第三时间单元的结束时刻，该第三时间单元为结束时刻不晚于时刻T 3的最晚时间单元，时刻T 3＝T 1-ΔT2；其中，T 1为第一物理下行信道的传输时刻，ΔT2为第二时间长度，第二时间长度ΔT2为预设的，或者，第二指示信息还指示第二时间长度ΔT2。
在一种可能的实现中，第二时间窗的结束时刻为第四时间单元的结束时刻，该第四时间单元为结束时刻不晚于第一物理下行信道的传输时刻T 1的最晚时间单元。
在一种可能的实现中，第二时间窗的持续时长是预设的；或者，第二指示信息还指示第二时间窗的持续时长。
在一种可能的实现中，第一下行传输包括以下的任意一种或几种：PDCCH、动态调度的PDSCH、SPS PDSCH、CSI-RS或SSB。
在另一种可能的实现中，第一下行传输包括：PDCCH、动态调度的PDSCH、SPS PDSCH和CSI-RS，且第一下行传输不包括SSB。
在又一种可能的实现中，第一下行不包括SSB和P-RNTI加扰的PDCCH。
可选的，第一下行传输包括PDCCH时，PDCCH包括以下一项或多项：C-RNTI加扰的PDCCH、CS-RNTI加扰的PDCCH、SFI-RNTI加扰的PDCCH、INT-RNTI加扰的PDCCH、CI-RNTI加扰的PDCCH、TPC-PUCCH-RNTI加扰的PDCCH、TPC-PUSCH-RNTI加扰的PDCCH、TPC-SRS-RNTI加扰的PDCCH、AI-RNTI加扰的PDCCH、SI-RNTI加扰的PDCCH、RA-RNTI加扰的PDCCH、TC-RNTI加扰的PDCCH或P-RNTI加扰的PDCCH。
在一种可能的实现中，第二指示信息还指示网络设备在第二时间窗内不接收第一上行传输。相应地，网络设备在第二时间窗内不接收第一上行传输。基于该可能的实现方式，网络设备可以动态关断第一下行传输和第一上行传输，有利于节省网络设备的功耗。
在一种可能的实现中，第一上行传输可以包括以下的任意一种或几种：GB PUSCH、CG PUSCH、PUCCH、PRACH、SRS。
可选的，第一下行传输包括PUCCH时，PUCCH可包括以下一项或多项：承载动态调度的PDSCH的HARQ-ACK的PUCCH、承载SPS PDSCH的HARQ-ACK的PUCCH、承载CSI的PUCCH，承载SR或BFR的PUCCH。
在一种可能的实现中，第二指示信息通过显示指示的方式指示网络设备在第二时间窗内未发送第一下行传输，第二指示信息的第一状态值指示网络设备在第二时间窗内未发送第一下行传输；第二指示信息的第二状态值指示网络设备在第二时间窗内发送第一下行传输。
在另一种可能的实现中，第二指示信息通过隐式指示的方式指示网络设备在第二时间窗内未发送第一下行传输，第二指示信息“存在”指示网络设备在第二时间窗内未发送第一下行传输，即第一下行传输失效；第二指示信息“不存在”指示网络设备在第二时间窗内发送第一下行传输。
第四方面的有益效果可参见第三方面对应的有益效果，在此不赘述。
第五方面，本申请提供了一种通信装置，该通信装置可以是终端设备，也可以是终端设备中的装置，或者是能够和终端设备匹配使用的装置。其中，该通信装置还可以为芯片系统。该通信装置可执行第一方面或第三方面所述的方法。该通信装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。该单元或模块可以是软件和/或硬件。该通信装置执行的操作及有益效果可以参见上述第一方面或第三方面所述的方法以及有益效果。
第六方面，本申请提供了一种通信装置，该通信装置可以是网络设备，也可以是网络设备中的装置，或者是能够和网络设备匹配使用的装置。其中，该通信装置还可以为芯片系统。该通信装置可执行第二方面或第四方面所述的方法。该通信装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。该单元或模块可以是软件和/或硬件。该通信装置执行的操作及有益效果可以参见上述第二方面或第四方面所述的方法以及有益效果。
第七方面，本申请提供了一种通信装置，通信装置包括处理器和接口电路，所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置，所述处理器通过逻辑电路或执行代码指令用于实现如第一方面～第四方面所述的方法。
第八方面，本申请提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如第一方面～第四方面所述的方法。
第九方面，本申请提供一种包括指令的计算机程序产品，当通信装置读取并执行该指令时，使得通信装置执行如第一方面～第四方面中任意一项的方法。
第十方面，本申请提供了一种通信系统，包括用于执行上述第一方面所述的方法的通信装置，以及用于执行上述第二方面所述方法的通信装置。或者，包括用于执行上述第三方面所述的方法的通信装置，以及用于执行上述第四方面所述方法的通信装置。
附图说明
图1是一种现有的一种DRX周期的示意图；
图2是本申请实施例提供的一种通信系统的示意图；
图3是本申请实施例提供的一种时间单元的示意图；
图4是本申请实施例提供的一种传输指示方法的流程示意图；
图5是本申请实施例提供的一种第一时间窗的示意图；
图6是本申请实施例提供的另一种第一时间窗的示意图；
图7是本申请实施例提供的又一种第一时间窗的示意图；
图8是本申请实施例提供的又一种第一时间窗的示意图；
图9是本申请实施例提供的又一种第一时间窗的示意图；
图10是本申请实施例提供的另一种传输指示方法的流程示意图；
图11是本申请实施例提供的一种第二时间窗的示意图；
图12是本申请实施例提供的另一种第二时间窗的示意图；
图13是本申请实施例提供的又一种第二时间窗的示意图；
图14是本申请实施例提供的又一种第二时间窗的示意图；
图15是本申请实施例提供的又一种第二时间窗的示意图；
图16是本申请实施例提供的一种通信装置的结构示意图；
图17是本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
为了能够更好地理解本申请，下面对本申请实施例提供的通信系统进行介绍：
图2是本申请的实施例应用的通信系统2000的示意图。如图2所示，该通信系统2000包括无线接入网100和核心网200，可选的，通信系统2000还可以包括互联网300。其中，无线接入网100可以包括至少一个无线接入网设备(如图2中的110a和110b)，还可以包括至少一个终端设备(如图2中的120a-120j)。终端设备通过无线的方式与无线接入网设备相连，无线接入网设备通过无线或有线方式与核心网连接。核心网设备与无线接入网设备可以是独立的不同的物理设备，也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端设备和终端设备之间以及无线接入网设备和无线接入网设备之间可以通过有线或无线的方式相互连接。图2只是示意图，该通信系统中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图2中未画出。
无线接入网设备可以是基站(base station)、演进型基站(evolved NodeB，eNodeB)、发送接收点(transmission reception point，TRP)、第五代(5th generation，5G)移动通信系统中的下一代基站(next generation NodeB，gNB)、第六代(6th generation，6G)移动通信系统中的下一代基站、未来移动通信系统中的基站或WiFi系统中的接入节点等；也可以是完成基站部分功能的模块或单元，例如，可以是集中式单元(central unit，CU)，也可以是分布式单元(distributed unit，DU)。这里的CU完成基站的无线资源控制协议和分组数据汇聚层协议(packet data convergence protocol，PDCP)的功能，还可以完成业务数据适配协议(service data adaptation protocol，SDAP)的功能；DU完成基站的无线链路控制层和媒体接入控制(medium access control，MAC)层的功能，还可以完成部分物理层或全部物理层的功能，有关上述各个协议层的具体描述，可以参考第三代合作伙伴计划(3rd generation partnership project，3GPP)的相关技术规范。无线接入网设备可以是宏基站(如图2中的110a)，也可以是微基站或室内站(如图2中的110b)，还可以是中继节点或施主节点等。本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。在本申请的实施例中，无线接入网设备可以简称为网络设备，为了便于描述，下文将无线接入网设备简称为网络设备进行描述。
终端设备也可以称为终端、用户设备(user equipment，UE)、移动台、移动终端等。终端设备可以广泛应用于各种场景，例如，设备到设备(device-to-device，D2D)、车物(vehicle to everything，V2X)通信、机器类通信(machine-type communication，MTC)、物联网(internet of things，IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端可以是手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、无人机、直升机、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
网络设备和终端设备可以是固定位置的，也可以是可移动的。网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对网络设备和终端设备的应用场景不做限定。
网络设备和终端设备的角色可以是相对的，例如，图2中的直升机或无人机120i可以被配置成移动网络设备，对于那些通过120i接入到无线接入网100的终端设备120j来说，终端设备120i是网络设备；但对于网络设备110a来说，120i是终端设备，即110a与120i之间是通过无线空口协议进行通信的。当然，110a与120i之间也可以是通过网络设备与网络设备之间的接口协议进行通信的，此时，相对于110a来说，120i也是网络设备。因此，网络设备和终端设备都可以统一称为通信装置，图2中的110a和110b可以称为具有网络设备功能的通信装置，图2中的120a-120j可以称为具有终端设备功能的通信装置。
网络设备和终端设备之间、网络设备和网络设备之间、终端设备和终端设备之间可以通过授权频谱进行通信，也可以通过免授权频谱进行通信，也可以同时通过授权频谱和免授权频谱进行通信；可以通过6千兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过6GHz以上的频谱进行通信，还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对无线通信所使用的频谱资源不做限定。
在本申请的实施例中，网络设备的功能也可以由网络设备中的模块(如芯片)来执行，也可以由包含有网络设备功能的控制子系统来执行。这里的包含有网络设备功能的控制子系统可以是智能电网、工业控制、智能交通、智慧城市等上述应用场景中的控制中心。终端设备的功能也可以由终端设备中的模块(如芯片或调制解调器)来执行，也可以由包含有终端设备功能的装置来执行。
下面对出本申请实施例所使用的一些名词或术语进行解释说明。
(1)物理下行信道
物理下行信道包括PDSCH和PDCCH。PDCCH用于承载DCI，PDCCH潜在的传输位置(包括时域位置和频域位置)是通过RRC信令配置的。PDSCH用于承载下行数据信道，PDSCH又分为动态调度的PDSCH和SPS PDSCH。对于动态调度的PDSCH，每次PDSCH传输都对应一个DCI，该DCI用于指示该PDSCH传输的时频资源和其他参数；对于SPS PDSCH，SPS PDSCH的传输是周期性重复的，传输周期是由RRC信令配置的，且首次传输由DCI激活，最后的传输也由DCI去激活。
(2)DCI的传输时机
DCI传输时机又称为PDCCH传输时机，指的是PDCCH传输的潜在时域位置。或者，指的是PDCCH传输的起始符号所在时域位置。
(3)SPS PDSCH的传输时机
SPS PDSCH的传输时机指的是SPS PDSCH传输的时域位置，具体地，SPS PDSCH的首次传输是根据激活DCI中时域资源分配字段确定的，后续其他传输时域位置是根据首次传输位置和所述SPS PDSCH的预设周期确定的。
(4)组播或广播的物理下行信道
一个组播或广播的物理下行信道可以由多个终端设备检测并译码。组播或广播的物理下行信道包括组播或广播的PDSCH和组播或广播的PDCCH。
本申请中，广播PDSCH可以由一个广播DCI调度。例如，该广播DCI由一个小区公共的RNTI加扰，这样小区内所有终端设备都可以用这个RNTI去解码该广播DCI从而去接收广播的PDSCH。组播PDSCH可以由一个组播DCI调度。例如，该组播DCI由一个用户组公共的RNTI加扰，这样这一个用户组内所有终端设备都可以用这个RNTI去解码组播DCI从而去接收组播的PDSCH。
本申请中，将承载于组播或广播的PDCCH的DCI简称为广播DCI或组播DCI，其中，组播DCI也可以称为组公共DCI。广播DCI由一个小区公共的RNTI加扰，这样小区内所有终端设备都可以用这个RNTI去解码该广播DCI。组播DCI由一个用户组公共的RNTI加扰，这样这一个用户组内所有终端设备都可以用这个RNTI去解码组播DCI。
(5)时间单元
时间单元为用于信号传输的时域单元，可包括无线帧(radio frame)、子帧(subframe)、时隙(slot)、微时隙(mini-slot)或至少一个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号等时域单位。OFDM符号也可以简称为时域符号。图3所示为本申请中一种可能的时间单元关系的示意图。参考图3，一个无线帧的时域长度为10ms。一个无线帧可以包括10个无线子帧，一个无线子帧的时域长度为1ms。一个无线子帧可以包括一个或多个时隙，具体一个子帧包括多少个时隙与子载波间隔(Subcarrier Space，SCS)相关。对于SCS为15kHz的情况，一个时隙的时域长度为1ms。一个时隙包括14个符号。
(6)非连续发送(dis-continuous transmit，DTX)机制
为了降低通信设备的功率消耗，可以使能通信设备在一段时间内不发送数据传输，或者，可以使能通信设备在一段时间内不发送全部信道或者部分信道。这种降低通信设备功率消耗的方式可以称为DTX机制。以下以通信设备是网络设备为例进行描述。
例如，网络设备可以设置一个传输图样，在一个传输周期内只在部分时间段上进行数据传输，在其他时间段都不进行数据发送或数据收发。
当没有业务负载的时候，可以采用网络设备DTX机制，从而降低网络设备的功耗。
当业务负载很轻的时候，很多传输时间间隔上虽然有数据传输，但传输时间间隔的资源利用率很低，此时也可以采用网络设备DTX机制，通过将待发送的数据汇集到时间段A发送，从而可以在时间段B进入DTX状态，实现网络设备的静态节能。
需要说明的是，对于网络设备DTX机制，网络设备在每个TTI可以选择是进行数据收发还是静默，并通知终端设备；或者，网络设备也可以通过终端设备触发，确定进行数据收发还是静默。
下面进一步对本申请实施例提供的传输指示方法及通信装置进行详细描述。
图4是本申请实施例提供的一种传输指示方法的流程示意图。如图4所示，该传输指示方法包括如下步骤401～步骤402。图4所示的方法执行主体可以为终端设备和网络设备。或者，图4所示的方法执行主体可以为终端设备中的芯片和网络设备中的芯片。图4以终端设备和网络设备为方法的执行主体为例进行说明。
401、网络设备向终端设备发送第一指示信息。对应的，终端设备可以接收该第一指示信息。
其中，该第一指示信息用于指示终端设备在第一时间窗内不接收第一下行传输，该第一指示信息承载于第一MAC CE或第一DCI。
402、网络设备在第一时间窗内不发送第一下行传输。对应的，终端设备基于第一指示信息不在第一时间窗内不接收第一下行传输。
也就是说，网络设备可以实现DTX传输，终端设备可以实现DRX传输。
下面对承载第一指示信息的第一MAC CE的相关内容进行详细介绍：
在一种可能的实现中，第一MAC CE承载于组播或广播的PDSCH。由于组播或广播的PDSCH是发给一组终端设备的，而不是用户特定的(UE-specific)，第一指示信息通过组播或广播的PDSCH发送给终端设备，避免了网络设备为每个终端设备分别发送第一指示信息造成的信令开销大的问题，降低了网络设备的信令开销。
在一种可能的实现中，第一MAC CE也可承载于单播的PDSCH。
在一种可能的实现中，第一MAC CE承载的PDSCH可以为SPS PDSCH。终端设备可在预设的SPS PDSCH的传输时机(occasion)上接收SPS PDSCH，并对该SPS PDSCH进行译码，以获取第一MAC CE。由于SPS PDSCH时机是周期性出现的，第一时间窗和SPS PDSCH的传输时机之间的关系可以满足以下一项或者多项关系：
(1)可以预定义SPS PDSCH的周期长度作为第一时间窗的持续时长，这样就不用另外配置第一时间窗的持续时间。
(2)可以预定义第一时间窗的结束时刻为下一个SPS PDSCH的传输时机的起始时刻，这样就不用另外配置第一时间窗的结束时刻。
通过使第一MAC CE承载于SPS PDSCH中，有并且预定义SPS PDSCH的传输时机和第一时间窗之间的关系，利于节省指示开销。
在一种可能的实现中，第一MAC CE承载的PDSCH可以为动态调度(dynamic)的PDSCH。
下面对承载第一指示信息的第一DCI的相关内容进行详细介绍：
在一种可能的实现中，第一DCI可承载于组播或广播的PDCCH。也即，第一DCI可以为组播DCI或者广播DCI。对于网络设备而言，通过组播DCI或者广播DCI发送第一指示信息，相比较对每个终端设备分别发送对应的第一指示信息，有利于降低指示开销。
在一种可能的实现中，第一DCI也可承载于单播的PDCCH。
基于第一DCI承载于组播或广播的PDCCH，或者承载于单播的PDCCH，第一DCI还可以有以下设计中的一种或者多种：
方式一，通过在现有协议的一种DCI格式中增加一个字段，得到第一DCI，其中，该增加的一个字段用于携带第一指示信息。
方式二，通过设计不同于现有协议中的DCI格式，得到第一DCI，也即第一DCI不同于现有协议中的DCI格式，相比较现有协议中的DCI格式，第一DCI是一种新的DCI格式。
方式三，第一DCI对应一个新的RNTI，该RNTI用于对第一DCI进行加扰。例如，该加扰RNTI对于多个终端设备都取值相同，多个终端设备都可以检测并译码该第一DCI。
本申请实施例中，终端设备可基于第一时间窗的起始时刻、第一时间窗的持续时间和第一时间窗的结束时刻中的两种或者三种来确定第一时间窗的位置。
下面对第一时间窗的起始时刻、第一时间窗的持续时间和第一时间窗的结束时刻分别进行介绍：
(1)第一时间窗的起始时刻
第一时间窗的起始时刻不早于承载第一MAC CE或第一DCI的第一物理下行信道的传输时刻T 1。例如，第一时间窗的起始时刻可以等于第一物理下行信道的传输时刻T 1。或者，第一时间窗的起始时刻在第一物理下行信道的传输时刻T 1之后。第一物理下行信道的传输时刻T 1可以是第一物理下行信道的传输起始时刻或第一物理下行信道的传输结束时刻。
需要说明的是，本申请中的传输时刻T 1为网络设备和终端设备对齐理解的传输时刻，例如，对于网络设备来说，第一物理下行信道的传输时刻T 1可以是第一物理下行信道的发送时刻。对于终端设备来说，第一物理下行信道的传输时刻T 1可以是第一物理下行信道的接收时刻。
图5为第一时间窗的起始时刻位于第一物理下行信道的传输时刻T 1之后的一种示例。如图5所示，网络设备通过第一物理下行信道向终端设备发送第一指示信息。网络设备发送第一指示信息之后，网络设备在第一物理下行信道的传输时刻T 1之后的第一时间窗内不发送第一下行传输。相应地，终端设备接收第一指示信息之后，终端设备基于第一指示信息在第一物理下行信道的传输时刻T 1之后的第一时间窗内不接收第一下行传输。
由于第一时间窗的起始时刻不早于承载第一MAC CE或第一DCI的第一物理下行信道的传输时刻T 1，关于第一时间窗的起始时刻如何确定，以下提出几种可选的方式：
方式A：第一时间窗的起始时刻由第一物理下行信道的传输时刻T 1和第一时间长度ΔT1确定，第一时间长度ΔT1是预设的或者是由第一指示信息指示的。第一时间长度ΔT1是预设的，是指第一时间长度ΔT1是协议预先规定的。或者，第一时间长度ΔT1是预设的是指第一时间长度ΔT1是网络设备通过RRC信令配置的。由于终端设备接收第一物理下行信道之后，需要一定时间才能译码出第一指示信息。基于第一物理下行信道的传输时刻T 1和第一时间长度ΔT1确定第一时间窗的起始时刻，有利于保证确定出的第一时间窗的起始时刻位于终端设备解析出第一指示信息的时刻之后，避免出现终端设备在解析第一指示信息之前，不确定是否需要接收第一下行传输的情况。
可选的，第一时间窗的起始时刻为第一时间单元的起始时刻，该第一时间单元为起始时刻不早于时刻T 2的最早时间单元，时刻T 2＝T 1+ΔT1。基于该可能的实现方式，有利于保证第一时间窗从一个时间单元的起始时刻开始，符合网络设备和终端设备以时间单元为单位进行传输的特征，可以降低实现复杂度。
例如，第一物理下行信道的传输时刻T 1、第一时间长度ΔT1和时刻T 2如图6所示。时间单元4的起始时刻等于时刻T 2。由于时间单元4为起始时刻不早于时刻T 2的最早时间单元，因此第一时间单元为时间单元4。
再如，第一物理下行信道的传输时刻T 1、第一时间长度ΔT1和时刻T 2如图7所示。时间单元4的起始时刻晚于时刻T 2。由于时间单元4为起始时刻不早于时刻T 2的最早时间单元，因此第一时间单元为时间单元4。
可选的，第一时间长度ΔT1大于或等于第一门限，该第一门限为终端设备支持的、对第一物理下行信道的最短处理时长。这样有利于保证确定出的第一时间窗的起始时刻位于终端设备解析出第一指示信息的时刻之后，避免出现终端设备在解析第一指示信息之前，不确定是否需要接收第一下行传输的情况而造成的通信异常的问题。
可选的，第一门限可以是协议预先规定的，也即终端设备支持的、对第一物理下行信道的最短处理时长为协议预先规定的，为方便描述，以下用将终端设备支持的、对第一物理下行信道的最短处理时长简称为最短处理时长。
可选的，第一物理下行信道为第一PDSCH，最短处理时长为终端设备接收第一PDSCH到发送该第一PDSCH对应的HARQ-ACK的最短处理时长T proc,1；或者，最短处理时长为终端设备接收第一PDSCH到完成该第一PDSCH译码需要的最短处理时长
Figure PCTCN2022134214-appb-000005
例如，
Figure PCTCN2022134214-appb-000006
参数a和b是协议预定义的；最短处理时长T proc,1的定义可参见3GPP TS38.214中5.3节相关描述，在此不赘述。可选地，参数a的取值满足0<a≤1或0<a≤0.5，参数b的取值为0，或者1个或2个传输符号的长度。
可选的，如果第一物理下行信道为第一PDCCH，最短处理时长可以是终端设备接收第一PDCCH到发送该第一PDCCH调度的PUSCH的最短处理时长T proc,2，或者是终端设备接收第一PDCCH到完成该第一PDCCH译码需要的最短处理时长
Figure PCTCN2022134214-appb-000007
例如是
Figure PCTCN2022134214-appb-000008
Figure PCTCN2022134214-appb-000009
其中，最短处理时长T proc,2的定义可见3GPP TS 38.214中6.4节相关描述。参数c和d是协议预定义的；可选地，参数c的取值满足0<c≤1或0<c≤0.5，参数d的取值为0，或者1个或2个传输符号的长度。
可选的，协议预先规定最短处理时长包含N个不同情况下的最短处理时长，N大于1，第一门限值为上述N个最短处理时长中最大值；或者，第一门限值为上述N个最短处理时长中第n个值，其中1≤n≤N，n是网络设备预先指示的。例如，协议定义两种终端设备处理能力，对应N＝2个最短处理时长，为了保证小区内所有终端设备都可以及时成功译码第一指示信息并在第一时间窗内进行，所述第一门限为上述2个最短处理时长中的最大值。
方式B：第一时间窗的起始时刻由第一物理下行信道的传输时刻T 1确定。例如，第一时间窗的起始时刻为第二时间单元的起始时刻，第二时间单元为起始时刻不早于第一物理下行信道的传输时刻T 1的最早时间单元。
例如，第一物理下行信道的传输时刻T 1如图8所示。时间单元4的起始时刻等于第一物理下行信道的传输时刻T 1。由于时间单元4为起始时刻不早于第一物理下行信道的传输时刻T 1的最早时间单元，因此第二时间单元为时间单元4。
再如，第一物理下行信道的传输时刻T 1如图9所示。时间单元4的起始时刻晚于第一物理下行信道的传输时刻T 1。由于时间单元4为起始时刻不早于第一物理下行信道的传输时刻T 1的最早时间单元，因此第二时间单元为时间单元4。
方式C：可通过第一指示信息直接指示第一时间窗的起始时刻，这样有利于减小终端设备的计算量，降低终端设备的功耗。
(2)第一时间窗的持续时间
第一时间窗的持续时长是预设的或者由第一指示信息指示的。第一时间窗的持续时长是预设的是指第一时间窗的持续时长是协议预先规定的。或者，第一时间窗的持续时长是预设的是指第一时间窗的持续时长是网络设备通过RRC信令配置的。
通过预设第一时间窗的持续时长有利于节省第一时间窗的持续时长的指示开销。通过第一指示信息来指示第一时间窗的持续时长，第一时间窗的持续时长可以动态改变，第一时间窗的持续时长能够更加灵活。
(3)第一时间窗的结束时刻
第一时间窗的结束时刻是预设的或者由第一指示信息指示的。第一时间窗的结束时刻是预设的是指第一时间窗的结束时刻是协议预先规定的。或者，第一时间窗的结束时刻是预设的是指第一时间窗的结束时刻是网络设备通过RRC信令配置的。例如，网络设备通过RRC信令可以配置：当第一指示信息承载于第一MAC CE且第一MAC CE承载于SPS PDSCH时，第一时间窗的结束时刻为下一个承载第一MAC CE的SPS PDSCH的检测时机的起始时刻，或者，当第一指示信息承载于第一DCI，第一时间窗的结束时刻为下一个承载第一指示信息的第一DCI的检测时机的起始时刻。
通过预设第一时间窗的结束时刻，有利于节省第一时间窗的结束时刻的指示开销。通过第一指示信息来指示第一时间窗的结束时刻，样有利于减小终端设备的计算量，降低终端设备的功耗。
下面对第一下行传输的相关内容进行详细介绍：
在一种可能的实现中，第一下行传输包括以下的任意一种或几种：PDCCH、动态调度的PDSCH、SPS PDSCH、CSI-RS或SSB。例如，第一下行传输包括PDCCH、动态调度的PDSCH、SPS PDSCH、CSI-RS和SSB。这样网络设备和终端设备可以动态关断众多的下行传输，有利于节省网络设备和终端设备的功耗。
终端设备在第一时间窗内不接收PDCCH是指：终端设备在第一时间窗内在PDCCH的传输时机上不对PDCCH进行盲检。
终端设备在第一时间窗内不接收动态调度的PDSCH是指：终端设备在第一时间窗内不接收动态调度的PDSCH，终端设备认为没有动态调度的PDSCH传输，也不会生成动态调度的PDSCH对应的反馈信息。
终端设备在第一时间窗内不接收SPS PDSCH是指：终端设备在第一时间窗内在SPS PDSCH的传输时机不接收SPS PDSCH，终端设备认为没有SPS PDSCH传输，也不会生成SPS PDSCH对应的反馈信息。
终端设备在第一时间窗内不接收CSI-RS是指：终端设备在第一时间窗内不测量CSI-RS，终端设备认为没有CSI-RS传输，也不会生成对CSI-RS的测量结果。
在一种可能的实现中，第一下行传输包括：PDCCH、动态调度的PDSCH、SPS PDSCH和CSI-RS，且第一下行传输不包括SSB。对于SSB传输，不仅连接态终端设备需要接收，空闲态或非激活态终端设备也需要接收，而空闲态或非激活态终端设备未必可以成功接收第一指示信息。因此在第一时间窗内保留SSB传输有助于维持空闲态或非激活态终端设备的SSB接收和测量，避免网络设备不发送SSB但是空闲态或非激活态终端设备尝试检测SSB造成的测量错误，避免由此造成不必要的小区重选等操作。另一方面，SSB发送本身周期较大，时域占比较小，网络设备在第一时间窗内发送SSB不会给网络设备带来很大的功耗，同理，终端设备在第一时间窗接收SSB不会给终端设备带来很大的功耗。
在一种可能的实现中，第一下行传输不包括SSB和P-RNTI加扰的PDCCH。P-RNTI加 扰的PDCCH用于调度终端设备的寻呼指示，而每个终端设备接收对应的P-RNTI加扰的PDCCH的位置是预配置的。对于某个终端设备，如果网络设备跳过这次P-RNTI加扰的PDCCH传输时机，需要等到下一个预配置时机，等待时延较大。因此，在第一时间窗内保留P-RNTI加扰的PDCCH传输有助于维持终端设备的寻呼接收。
可选的，第一下行传输包括PDCCH时，PDCCH包括以下一项或多项：C-RNTI加扰的PDCCH、CS-RNTI加扰的PDCCH、SFI-RNTI加扰的PDCCH、INT-RNTI加扰的PDCCH、CI-RNTI加扰的PDCCH、TPC-PUCCH-RNTI加扰的PDCCH、TPC-PUSCH-RNTI加扰的PDCCH、TPC-SRS-RNTI加扰的PDCCH、AI-RNTI加扰的PDCCH、SI-RNTI加扰的PDCCH、RA-RNTI加扰的PDCCH、TC-RNTI加扰的PDCCH或P-RNTI加扰的PDCCH。即终端设备在第一时间窗内不对这些RNTI加扰的PDCCH进行盲检。
在一种可能的实现中，第一指示信息还指示终端设备在第一时间窗内不发送第一上行传输。相应地，终端设备还可基于第一指示信息在第一时间窗内不发送第一上行传输，网络设备在第一时间窗内不接收第一上行传输。基于该可能的实现方式，网络设备不仅仅可以关断第一下行传输的发送，还可以关断第一上行传输的接收和第一上行传输对应的信号处理，进一步降低网络设备功耗。对应地，终端设备可以动态关断第一下行传输的接收和第一上行传输的发送，有利于节省终端设备的功耗。
在一种可能的实现中，第一上行传输可以包括以下的任意一种或几种：GB PUSCH、CG PUSCH、PUCCH、PRACH、SRS。
本申请全文中，GB PUSCH，即基于一个UL DCI确定的PUSCH，或者说，这个PUSCH是由一个UL DCI调度的。
在一种可能的实现中，如果第一上行传输包括GB PUSCH，终端设备不认为在第一时间窗内有需要发送GB PUSCH，即终端设备不期望第一时间窗内存在GB PUSCH。
可选的，第一上行传输包括PUCCH时，PUCCH可包括以下一项或多项：承载动态调度的PDSCH的HARQ-ACK的PUCCH、承载SPS PDSCH的HARQ-ACK的PUCCH、承载信道状态信息CSI的PUCCH，承载SR或BFR的PUCCH。
第一指示信息可以通过显示的指示方式或者隐式的指示方式指示终端设备在第一时间窗内不接收第一下行传输。
(1)显示的指示方式
在一种可能的实现中，第一指示信息为一个信息比特，该信息比特的不同状态值用于指示不同的信息。第一指示信息的第一状态值指示终端设备在第一时间窗内不接收第一下行传输；第一指示信息的第二状态值指示终端设备在第一时间窗内接收第一下行传输。
例如，第一指示信息为一个1比特的信息比特，当该1比特状态值为1时，第一指示信息指示终端设备在第一时间窗内不接收第一下行传输，当该1比特状态值为0时，第一指示信息指示终端设备在第一时间窗内接收第一下行传输。或者，当该1比特状态值为0时，第一指示信息指示终端设备在第一时间窗内不接收第一下行传输，当该1比特状态值为1时，第一指示信息指示终端设备在第一时间窗内接收第一下行传输。
又如，第一指示信息为一个2比特的信息比特。当该2比特状态值为11时，指示终端设备在第一时间窗内不接收第一下行传输；当该2比特状态值为00时，指示终端设备在第一时间窗内接收第一下行传输。或者，当该2比特状态值为00时，指示终端设备在第一时间窗内不接收第一下行传输；当该2比特状态值为11时，指示终端设备在第一时间窗内接收第一下行传输。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备确认第一指示信息的取值为第二状态值。基于该可能的实现方式，有利于终端设备不漏收下行传输。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备确认第一指示信息的取值为第一状态值。基于该可能的实现方式，有利于节省终端设备的功耗。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的无线资源控制(radio resource control，RRC)信令确定第一指示信息的取值为第一状态值或第二状态值。基于该可能的实现方式，可以灵活地确定第一指示信息的取值。
(2)隐式的指示方式
终端设备通过检测第一MAC CE或者第一DCI中是否存在第一指示信息，确定是否在第一时间窗内接收第一下行传输。在一种可能的实现中，第一指示信息“存在”指示终端设备在第一时间窗内不接收第一下行传输；第一指示信息“不存在”指示终端设备在第一时间窗内接收第一下行传输。或者，第一指示信息“不存在”指示终端设备在第一时间窗内不接收第一下行传输；第一指示信息“存在”指示终端设备在第一时间窗内接收第一下行传输。
以第一指示信息承载于第一MAC CE为例，当该第一MAC CE承载于SPS PDSCH时，终端设备在预设的时频位置接收SPS PDSCH并进行译码，译码后去查询该数据块中是否包含的第一MAC CE。如果包含第一MAC CE，即该第一指示信息“存在”，终端设备在第一时间窗内不接收第一下行传输。当所述数据块不包含第一MAC CE，即该第一指示信息“不存在”，终端设备在第一时间窗内接收第一下行传输。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备确认第一指示信息不存在。基于该可能的实现方式，有利于终端设备不漏收下行传输，保证通信质量。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备确认第一指示信息存在。基于该可能的实现方式，有利于节省终端设备的功耗。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的RRC信令确定第一指示信息是否存在。基于该可能的实现方式，可以灵活地确定第一指示信息是否存在。
在一种可能的实现中，网络设备在第一时间窗内不发送第一下行传输，也可以理解为网络设备在第一时间窗内处于非激活状态。网络设备在第一时间窗内发送第一下行传输，也可以理解为网络设备在第一时间窗内处于激活状态。对应的，终端设备在第一时间窗内不接收第一下行传输，可以理解为终端设备在第一时间窗内处于非激活状态。终端设备在第一时间窗内接收第一下行传输，可以理解为终端设备在第一时间窗内处于激活状态。第一指示信息指示终端设备在第一时间窗内不接收第一下行传输也可以理解为：第一指示信息指示终端设备在第一时间窗内处于非激活状态。第一指示信息指示终端设备在第一时间窗内接收第一下行传输也可以理解为：第一指示信息指示终端设备在第一时间窗内处于激活状态。
在一种可能的实现中，由于网络设备在第一时间窗内不发送第一下行传输，终端设备在第一时间窗内不接收第一下行传输，对于第一时间窗内有传输需求的情况，网络设备可以在第一时间窗结束之后的可用时频资源上重新发送第一下行传输和/或接收第一上行传输；终端 设备可以在第一时间窗结束之后的可用时频资源上重新接收第一下行传输和/或发送第一上行传输。基于该可能的实现方式，能够在不牺牲数据传输的情况下，实现网络设备和终端设备的节能。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备在第一时间窗内接收第一下行传输。也即，当终端设备无法获知第一指示信息时，终端设备在第一时间窗内接收第一下行传输，或者理解为，终端设备在无法获知第一指示信息时，终端设备认为第一指示信息指示终端设备在第一时间窗内接收下行传输。基于该可能的实现方式，有利于终端设备不漏收下行传输。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备在第一时间窗内不接收第一下行传输。也即，当终端设备无法获知第一指示信息时，终端设备在第一时间窗内不接收下行传输，或者理解为，终端设备在无法获知第一指示信息时，终端设备认为第一指示信息指示终端设备在第一时间窗内不接收下行传输。基于该可能的实现方式，有利于节省终端设备的功耗。
在一种可能的实现中，若终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的RRC信令确定在第一时间窗内是否接收第一下行传输。基于该可能的实现方式，在终端设备对承载第一MAC CE或第一DCI的第一物理下行信道译码不成功时，终端设备可以根据RRC信令灵活地确定在第一时间窗内是否接收第一下行传输。
在一种可能的实现中，第一指示信息承载于第一MAC CE且第一MAC CE承载于SPS PDSCH：当第一指示信息指示在第一时间窗内不接收第一下行传输，且第一时间窗内包含承载第一MAC CE的SPS PDSCH的下一个传输时机时，终端设备执行以下任意一种操作：
(1)在该下一个传输时机上不接收SPS PDSCH。这样有利于节省终端设备的功耗。对应的，网络设备在该下一个传输时机上不会发送SPS PDSCH，从而可以降低网络设备的功耗。
(2)终端设备在该下一个传输时机上进行SPS PDSCH接收，并根据该下一个传输时机上接收的SPS PDSCH中的第一指示信息确定下一个第一时间窗内是否接收第一下行传输。对应的，网络设备在该下一个传输时机上发送SPS PDSCH。
例如，终端设备根据该下一个传输时机上接收的SPS PDSCH中的第一指示信息确定下一个第一时间窗内需要进行第一下行传输。当下一个第一时间窗和之前的第一时间窗部分重叠时，下一个第一时间窗内的终端设备行为会覆盖之前第一时间窗内的终端设备行为，即终端设备会在重叠部分进行第一下行传输。这样，网络设备可以不断调整决策行为，获取最大的调度灵活性。
(3)终端设备根据网络设备发送的RRC信令，确定在该下一个传输时机上是否接收SPS PDSCH。这样可以更加灵活地确定在第一时间窗内是否接收SPS PDSCH。
在一种可能的实现中，第一指示信息承载于第一DCI：当第一指示信息指示在第一时间窗内不接收第一下行传输，且第一时间窗内包含第一DCI的下一个传输时机时，终端设备执行以下任意一种操作：
(1)在该下一个传输时机上不接收第一DCI。对应的，网络设备在该下一个传输时机上不会发送第一DCI，从而可以降低网络设备的功耗。
(2)终端设备在该下一个传输时机上接收第一DCI，并根据该下一个传输时机上接收的第一DCI中的第一指示信息确定下一个第一时间窗内是否接收第一下行传输。对应的，网络设备在该下一个传输时机上发送第一DCI。
例如，终端设备根据该下一个传输时机上接收的第一DCI中的第一指示信息确定下一个第一时间窗内需要进行第一下行传输。当下一个时间时机窗和之前的第一时间窗部分重叠时，下一个第一时间窗内的终端设备行为会覆盖之前第一时间窗内的终端设备行为，即终端设备会在重叠部分进行第一下行传输。这样，网络设备可以不断调整决策行为，获取最大的调度灵活性。
(3)终端设备根据网络设备发送的RRC信令，确定在该第一DCI传输时机上是否接收第一DCI。这样可以更加灵活地确定在第一时间窗内是否接收第一DCI。
可见，通过实施图4所描述的方法，网络设备能够通过MAC CE和DCI指示终端设备在第一时间窗内不接收第一下行传输，能够动态地、灵活地为终端设备配置DRX，有利于降低终端设备的性能损失，同时降低网络设备和终端设备的功耗。
下面对本申请实施例提供的另一种传输指示方法进行介绍：
图10是本申请实施例提供的另一种传输指示方法的流程示意图。如图10所示，该传输指示方法包括如下步骤1001～步骤1003。图10所示的方法执行主体可以为终端设备和网络设备。或者，图10所示的方法执行主体可以为终端设备中的芯片和网络设备中的芯片。图10以终端设备和网络设备为方法的执行主体为例进行说明。
1001、网络设备在第二时间窗内不发送第一下行传输。
也就是说，网络设备可以实现DTX传输。
1002、网络设备向终端设备发送第二指示信息。相应地，终端设备可以接收该第二指示信息。
其中，该第二指示信息指示网络设备在第二时间窗内未发送第一下行传输，该第二指示信息承载于第二MAC CE或第二DCI。或者，也可以理解为该第二指示信息指示终端设备在第二时间窗内不需要接收第一下行传输。
下面对承载第二指示信息的第二MAC CE的相关内容进行详细介绍：
在一种可能的实现中，第二MAC CE承载于组播或广播的PDSCH。由于组播或广播的PDSCH是发给一组终端设备的，而不是用户特定的(UE-specific)，第二指示信息通过组播或广播的PDSCH发送给终端设备，避免了网络设备为每个终端设备分别发送第二指示信息造成的信令开销大的问题，降低了网络设备的信令开销。
在一种可能的实现中，第二MAC CE也可承载于单播的PDSCH。
在一种可能的实现中，第二MAC CE承载的PDSCH可以为SPS PDSCH。终端设备可在预设的SPS PDSCH的传输时机上接收SPS PDSCH，并对该SPS PDSCH进行译码，以获取第二MAC CE。由于SPS PDSCH时机是周期性出现的，第二时间窗和SPS PDSCH的传输时机之间的关系可以满足以下一项或者多项关系：
(1)可以预定义SPS PDSCH的周期长度作为第二时间窗的持续时长，这样就不用另外配置第二时间窗的持续时间。
(2)可以预定义第二时间窗的起始时刻为上一个SPS PDSCH时机的起始时刻或结束时刻，这样就不用另外配置第二时间窗的起始时刻。
通过使第二MAC CE承载于SPS PDSCH中，有并且预定义SPS PDSCH的传输时机和第二时间窗之间的关系，利于节省指示开销。
在一种可能的实现中，第二MAC CE承载的PDSCH可以为动态调度的PDSCH中。
下面对承载第二指示信息的第二DCI的相关内容进行详细介绍：
在一种可能的实现中，第二DCI可承载于组播或广播的PDCCH。也即，第二DCI可以为组播DCI或者广播DCI。对于网络设备而言，通过组播DCI或者广播DCI发送第二指示信息，相比较对每个终端设备分别发送对应的第二指示信息，有利于降低指示开销。
在一种可能的实现中，第二DCI也可承载于单播的PDCCH。
基于第二DCI承载于组播或广播的PDCCH，或者承载于单播的PDCCH，第二DCI还可以有以下设计中的一种或者多种：
方式一，通过在现有协议的一种DCI格式中增加一个字段，得到第二DCI，其中，该增加的一个字段用于携带第二指示信息。
方式二，通过设计不同于现有协议中的DCI格式，得到第一点DCI，也即第二DCI不同于现有协议中的DCI格式，相比较现有协议中的DCI格式，第二DCI是一种新的DCI格式。
方式三，第二DCI对应一个新的RNTI，该RNTI用于对第二DCI进行加扰。例如，该加扰RNTI对于多个终端设备都取值相同，多个终端设备都可以检测并译码该第二DCI。
本申请实施例中，终端设备可基于第二时间窗的结束时刻、第二时间窗的持续时间和第二时间窗的起始时刻中的两种或者三种来确定第二时间窗的位置。
下面对第二时间窗的结束时刻、第二时间窗的持续时间和第二时间窗的起始时刻分别进行介绍：
(1)第二时间窗的结束时刻
第二时间窗的结束时刻不晚于承载第二MAC CE或第二DCI的第一物理下行信道的传输时刻T 1。例如，第二时间窗的结束时刻可以等于第一物理下行信道的传输时刻T 1。或者，第二时间窗的结束时刻在第一物理下行信道的传输时刻T 1之前。第一物理下行信道的传输时刻T 1可以是第一物理下行信道的传输起始时刻或第一物理下行信道的传输结束时刻。
需要说明的是，本申请中的传输时刻T 1为网络设备和终端设备对齐理解的传输时刻，例如，对于网络设备来说，第一物理下行信道的传输时刻T 1可以是第一物理下行信道的发送时刻。对于终端设备来说，第一物理下行信道的传输时刻T 1可以是第一物理下行信道的接收时刻。
例如，图11以第二时间窗的结束时刻位于第一物理下行信道的传输时刻T 1之前为例。如图11所示，网络设备在第二时间窗内发现需要传输的数据较少，可以推迟到后面与后面的数据一起发送，因此决定不发送第一下行传输。在第二时间窗结束之后，网络设备向终端设备发送第二指示信息，告诉终端设备在第一物理下行信道的传输时刻T 1之前的第二时间窗内，网络设备没有发送第一下行传输。相应地，终端设备接收第二指示信息之后，确定在第一物理下行信道的传输时刻T 1之前的第二时间窗内接收的第一下行传输无效。
由于第二时间窗的结束时刻不早于承载第二MAC CE或第二DCI的第一物理下行信道的传输时刻T 1，关于第二时间窗的起始时刻如何确定，以下提出几种可选的方式：
方式A：第二时间窗的结束时刻由第一物理下行信道的传输时刻T 1和第二时间长度ΔT2确定，第二时间长度ΔT2是预设的或者是由第二指示信息指示的。第二时间长度ΔT2大于0。第二时间长度ΔT2是预设的是指第二时间长度ΔT2是协议预先规定的。或者，第二时间长度ΔT2是预设的是指第二时间长度ΔT2是网络设备通过RRC信令配置的。由于网络设备在经历第二时间窗后，准备发送第二指示信息需要一定的处理时延，基于第一物理下行信道的传输时刻T 1和第二时间长度ΔT2确定第二时间窗的结束时刻，有利于使第二时间窗的结束时刻位于第一物理下行信道的传输时刻T 1之前，更加匹配网络设备侧的发送处理开销。
可选的，第二时间窗的结束时刻为第三时间单元的结束时刻，该第三时间单元为结束时 刻不晚于时刻T 3的最晚时间单元，时刻T 3＝T 1-ΔT2。基于该可能的实现方式，有利于保证第二时间窗在一个时间单元的结束时刻结束，符合网络设备和终端设备以时间单元为单位进行传输的特征，可以降低实现复杂度。
例如，第一物理下行信道的传输时刻T 1、第二时间长度ΔT2和时刻T 3如图12所示。时间单元4的结束时刻等于时刻T 3。由于时间单元4为结束时刻不晚于时刻T 3的最晚时间单元，因此第三时间单元为时间单元4。
再如，第一物理下行信道的传输时刻T 1、第二时间长度ΔT2和时刻T 3如图13所示。时间单元4的起始时刻早于时刻T 3。由于时间单元4为结束时刻不晚于时刻T 3的最晚时间单元，因此第三时间单元为时间单元4。
方式B：第二时间窗的结束时刻由第一物理下行信道的传输时刻T 1确定。例如，第二时间窗的结束时刻为第四时间单元的结束时刻，第四时间单元为结束时刻不晚于时刻T 1的最晚时间单元。基于该可能的实现方式，有利于保证第二时间窗在一个时间单元的结束时刻结束，符合网络设备和终端设备以时间单元为单位进行传输的特征，可以降低实现复杂度。
例如，第一物理下行信道的传输时刻T 1如图14所示。时间单元4的结束时刻等于第一物理下行信道的传输时刻T 1。由于时间单元4为结束时刻不晚于第一物理下行信道的传输时刻T 1的最晚时间单元，因此第四时间单元为时间单元4。
再如，第一物理下行信道的传输时刻T 1如图15所示。时间单元4的起始时刻早于第一物理下行信道的传输时刻T 1。由于时间单元4为结束时刻不晚于第一物理下行信道的传输时刻T 1的最晚时间单元，因此第四时间单元为时间单元4。
方式C：也可以通过第二指示信息直接指示第二时间窗的结束时刻，这样有利于减小终端设备的计算量，降低终端设备的功耗。
(2)第二时间窗的持续时间
第二时间窗的持续时长是预设的或者由第二指示信息指示的。第二时间窗的持续时长是预设的是指第二时间窗的持续时长是协议预先规定的。或者，第二时间窗的持续时长是预设的是指第二时间窗的持续时长是网络设备通过RRC信令配置的。
其中，通过预设第二时间窗的持续时长有利于节省第二时间窗的持续时长的指示开销。通过第二指示信息来指示第二时间窗的持续时长，第二时间窗的持续时长可以动态改变，第二时间窗的持续时长能够更加灵活。
(3)第二时间窗的起始时刻
第二时间窗的起始时刻是预设的或者由第二指示信息指示的。第二时间窗的起始时刻是预设的是指第二时间窗的起始时刻是协议预先规定的。或者，第二时间窗的起始时刻是预设的是指第二时间窗的起始时刻是网络设备通过RRC信令配置的。例如，当第二指示信息承载于第二MAC CE且第二MAC CE承载于SPS PDSCH时，第二时间窗的起始时刻为上一个承载第二MAC CE承载的SPS PDSCH的检测时机的起始时刻或结束时刻，或者，当第二指示信息承载于第二DCI，第二时间窗的起始时刻为上一个承载第一指示新的第二DCI的检测时机的起始时刻或结束时刻。
通过预设第二时间窗的起始时刻，有利于节省第二时间窗的结束时刻的指示开销。通过第二指示信息来指示第二时间窗的起始时刻，样有利于减小终端设备的计算量，降低终端设备的功耗。
1003、终端设备基于第二指示信息确定网络设备在第二时间窗内未发送第一下行传输。
本申请实施例中，终端确定第二时间窗后，如果在第二时间窗内没有接收第一下行传输， 则不进行处理。如果接收了第一下行传输，则认为第一下行传输无效，忽略第一下行传输接收信息和测量结果。
例如，如果第一下行传输包括PDCCH，则终端设备确定在第二时间窗内对PDCCH的盲检无效。终端设备可忽略第二时间窗内PDCCH上的DCI调度的下行传输和上行传输。忽略PDCCH上的DCI指示的测量和上报。
再如，如果第一下行传输包括动态调度的PDSCH或SPS PDSCH，则终端设备冲掉缓存的在第二时间窗内接收的动态调度的PDSCH或SPS PDSCH，并且不需要反馈在第二时间窗内接收的动态调度的PDSCH或SPS PDSCH的HARQ-ACK。
再如，如果第一下行传输包括CSI-RS，则终端设备删除第二时间窗内对CSI-RS的测量信息。
下面对第一下行传输的相关内容进行详细介绍：
在一种可能的实现中，第一下行传输包括以下的任意一种或几种：PDCCH、动态调度的PDSCH、SPS PDSCH、CSI-RS或SSB。例如，第一下行传输包括PDCCH、动态配置的PDSCH、SPS PDSCH、CSI-RS和SSB。这样网络设备可以动态关断众多的下行传输，有利于节省网络设备的功耗。
在一种可能的实现中，第一下行传输包括：PDCCH、动态调度的PDSCH、SPS PDSCH和CSI-RS，且第一下行传输不包括SSB。对于SSB传输，不仅仅连接态终端设备需要接收，空闲态或非激活态终端设备也需要接收，而空闲态或非激活态终端设备未必可以成功接收第二指示信息。因此在第二时间窗内保留SSB传输有助于维持空闲态或非激活态终端设备的SSB接收和测量，避免网络设备不发送SSB但是空闲态或非激活态终端设备尝试检测SSB造成的测量错误，造成不必要的小区重选等操作。另一方面，SSB发送本身周期较大，时域占比较小，网络设备在第二时间窗内发送一下SSB不会给网络设备带来很大的功耗。
在一种可能的实现中，第一下行不包括SSB和P-RNTI加扰的PDCCH。P-RNTI加扰的PDCCH用于调度用户的寻呼指示，而每个用户在什么位置接收对应的P-RNTI加扰的PDCCH是预配置好的。对于某个UE，如果基站跳过这次P-RNTI加扰的PDCCH传输时机，需要等到一个预配置时机，等待时延较大。因此，在第二时间窗内保留P-RNTI加扰的PDCCH传输有助于维持用户的寻呼接收。
可选的，第一下行传输包括PDCCH时，PDCCH包括以下一项或多项：C-RNTI加扰的PDCCH、CS-RNTI加扰的PDCCH、SFI-RNTI加扰的PDCCH、INT-RNTI加扰的PDCCH、CI-RNTI加扰的PDCCH、TPC-PUCCH-RNTI加扰的PDCCH、TPC-PUSCH-RNTI加扰的PDCCH、TPC-SRS-RNTI加扰的PDCCH、AI-RNTI加扰的PDCCH、SI-RNTI加扰的PDCCH、RA-RNTI加扰的PDCCH、TC-RNTI加扰的PDCCH或P-RNTI加扰的PDCCH。
在一种可能的实现中，网络设备还可在第二时间窗内不接收第一上行传输。第二指示信息还指示网络设备在第二时间窗内未接收第一上行传输。相应地，终端设备还可基于第二指示信息确定在第二时间窗内发送的第一上行传输无效，即终端设备认为第一上行传输在网络设备侧接收失败。基于该可能的实现方式，网络设备不仅仅可以关断第一下行传输的发送，还可以关断第一上行传输的接收和第一上行传输对应的信号处理，进一步降低网络设备功耗。
在一种可能的实现中，第一上行传输可以包括以下的任意一种或几种：GB PUSCH、CG PUSCH、PUCCH、PRACH、SRS。
在一种可能的实现中，如果第一上行传输包括GB PUSCH，终端设备不认为在第二时间窗内有需要发送GB PUSCH，即终端设备不期望第二时间窗内存在GB PUSCH。
可选的，第一上行传输包括PUCCH时，PUCCH可包括以下一项或多项：承载动态调度的PDSCH的HARQ-ACK的PUCCH、承载SPS PDSCH的HARQ-ACK的PUCCH、承载CSI的PUCCH，承载SR或BFR的PUCCH。
第二指示信息可以通过显示的指示方式或者隐式的指示方式指示网络设备在第二时间窗内未发送第一下行传输。
(1)显示的指示方式
在一种可能的实现中，第二指示信息为一个信息比特，该信息比特的不同状态值用于指示不同的信息。第二指示信息的第一状态值指示网络设备在第二时间窗内未发送第一下行传输；第二指示信息的第二状态值指示网络设备在第二时间窗内发送第一下行传输。
例如，第二指示信息为一个1比特的信息比特，当该1比特状态值为1时，指示网络设备在第二时间窗内未发送第一下行传输；当该1比特状态值为0时，指示网络设备在第二时间窗内发送第一下行传输。或者，当该1比特状态值为0时，指示网络设备在第二时间窗内未发送第一下行传输；当该1比特状态值为1时，指示网络设备在第二时间窗内发送第一下行传输。
再如，第二指示信息为一个2比特的信息比特。当该2比特状态值为11时，指示网络设备在第二时间窗内未发送第一下行传输；当该2比特状态值为00时，指示网络设备在第二时间窗内发送第一下行传输。或者，当该2比特状态值为00时，指示网络设备在第二时间窗内未发送第一下行传输；当该2比特状态值为11时，指示网络设备在第二时间窗内发送第一下行传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备确认第二指示信息的取值为第二状态值。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的有效传输确定为无效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备确认第二指示信息的取值为第一状态值。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的有效传输确定为无效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的RRC信令确定第二指示信息的取值为第一状态值或第二状态值。基于该可能的实现方式，可以灵活地确定第二指示信息的取值。
(2)隐式的指示方式
终端设备通过检测第二MAC CE或者第二DCI中是否存在第二指示信息，确定网络设备在第二时间窗内是否发送第一下行传输。在一种可能的实现中，第二指示信息“存在”指示网络设备在第二时间窗内未发送第一下行传输，即第一下行传输失效；第二指示信息“不存在”指示网络设备在第二时间窗内发送第一下行传输。或者，第二指示信息“不存在”指示网络设备在第二时间窗内未发送第一下行传输，即第一下行传输失效；第二指示信息“存在”指示网络设备在第二时间窗内发送第一下行传输。
以第二指示信息承载于第二MAC CE为例，当该第二MAC CE承载于SPS PDSCH时，终端设备在预设的时频位置接收SPS PDSCH并进行译码，译码后去查询该数据块中包含的MAC CE。如果包含第二MAC CE，即该第二指示信息“存在”，终端设备在第二时间窗内不需要接收第一下行传输，即第一下行传输失效。当所述数据块不包含第二MAC CE，即该第二指示信息“不存在”，终端设备在第二时间窗内需要接收第一下行传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道 译码不成功，终端设备确认第二指示信息不存在。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的有效传输确定为无效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备确认第二指示信息存在。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的有效传输确定为无效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，终端设备基于网络设备发送的RRC信令确定第二指示信息是否存在。基于该可能的实现方式，可以灵活地确定第二指示信息是否存在。
在一种可能的实现中，网络设备在第二时间窗内不发送第一下行传输，也可以理解为网络设备在第二时间窗内处于非激活状态。网络设备在第二时间窗内发送第一下行传输，也可以理解为网络设备在第二时间窗内处于激活状态。第二指示信息指示网络设备在第二时间窗内未发送第一下行传输也可以理解为：第二指示信息指示网络设备在第二时间窗内处于非激活状态。第二指示信息指示网络设备在第二时间窗内发送第一下行传输也可以理解为：第二指示信息指示网络设备在第二时间窗内处于激活状态。
可选的，网络设备可以在第二时间窗结束之后的可用时频资源上发送第一下行传输和/或接收第一上行传输；终端设备可以在第二时间窗结束之后的可用时频资源上重新接收第一下行传输和/或发送第一上行传输。基于该可能的实现方式，能够在不牺牲数据传输的情况下，实现网络设备的节能。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，则终端设备确定网络设备在第二时间窗内发送了第一下行传输，即终端设备确定在第二时间窗内接收的第一下行传输有效。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的有效传输确定为无效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，则终端设备确定网络设备在第二时间窗内未发送第一下行传输，即终端设备确定在第二时间窗内接收的第一下行传输无效。基于该可能的实现方式，有利于避免终端设备将第二时间窗内的无效传输确定为有效传输。
在一种可能的实现中，若终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功，则终端设备基于网络设备发送的无线资源控制RRC信令确定网络设备在第二时间窗内是否发送了第一下行传输。基于该可能的实现方式，在终端设备对承载第二MAC CE或第二DCI的第一物理下行信道译码不成功时，可以灵活地确定网络设备在第二时间窗内未发送第一下行传输。
可见，通过实施图10所描述的方法，网络设备能够通过MAC CE和DCI动态地指示网络设备自己在第二时间窗内是否发送第一下行传输，网络设备侧能够更加灵活地关断下行传输，有利于降低终端设备的性能损失。并且，通过先关断第一下行传输，再向终端设备指示网络设备关断了第一下行传输，网络设备不需要预测后续时间的第一下行传输的传输量来确定是否关断第一下行传输，有利于节省网络设备的功耗，提高了网络设备发送下行传输或者静默下行传输的灵活性。
可以理解的是，为了实现上述实施例中功能，网络设备和终端设备包括了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本申请中所公开的实施例描述的各示例的单元及方法步骤，本申请能够以硬件或硬件和计算机软件相结合的形 式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用场景和设计约束条件。
图16和图17为本申请的实施例提供的可能的通信装置的结构示意图。这些通信装置可以用于实现上述方法实施例中终端设备或网络设备的功能，因此也能实现上述方法实施例所具备的有益效果。在本申请的实施例中，该通信装置可以是如图2所示的终端设备120a-120j中的一个，也可以是如图2所示的网络设备110a或110b，还可以是应用于终端设备或网络设备的模块(如芯片)。
如图16所示，通信装置1600包括处理单元1610和收发单元1620。
在一种可能的实现中，通信装置1600用于实现上述图4中所示的方法实施例中终端设备或网络设备的功能。
当通信装置1600用于实现图4所示的方法实施例中终端设备的功能时：收发单元1620用于接收第一指示信息，第一指示信息指示终端设备在第一时间窗内不接收第一下行传输，第一指示信息承载于第一MAC CE或第一DCI中；处理单元1610用于基于第一指示信息在第一时间窗内不接收第一下行传输。
当通信装置1600用于实现图4所示的方法实施例中网络设备的功能时：收发单元1620用于向终端设备发送第一指示信息，第一指示信息用于指示终端设备在第一时间窗内不接收第一下行传输，第一指示信息承载于第一MAC CE信令或第一DCI信令。
有关上述处理单元1610和收发单元1620更详细的描述可以直接参考图4所示的方法实施例中相关描述直接得到，这里不加赘述。
在另一种可能的实现中，通信装置1600用于实现上述图10中所示的方法实施例中终端设备或网络设备的功能。
当通信装置1600用于实现图10所示的方法实施例中终端设备的功能时：收发单元1620用于接收第二指示信息，该第二指示信息指示网络设备在第二时间窗内未发送第一下行传输，该第二指示信息承载于第一MAC CE或第一DCI，该第二时间窗的结束时刻不晚于承载第二MAC CE或第二DCI的第一物理下行信道的传输时刻T 1；处理单元1610用于基于第二指示信息确定第二时间窗内接收的第一下行传输无效。
当通信装置1600用于实现图10所示的方法实施例中网络设备的功能时：处理单元1610用于在第二时间窗内不发送第一下行传输；收发单元1620用于向终端设备发送第二指示信息，第二指示信息指示网络设备在第二时间窗内未发送第一下行传输，第二指示信息承载于第一MAC CE信令或第一DCI信令，该第二时间窗的结束时刻不晚于承载第二MAC CE或第二DCI的第一物理下行信道的传输时刻T 1。
有关上述处理单元1610和收发单元1620更详细的描述可以直接参考图10所示的方法实施例中相关描述直接得到，这里不加赘述。
如图17所示，通信装置1700包括处理器1710和接口电路1720。处理器1710和接口电路1720之间相互耦合。可以理解的是，接口电路1720可以为收发器或输入输出接口。可选的，通信装置1700还可以包括存储器1730，用于存储处理器1710执行的指令或存储处理器1710运行指令所需要的输入数据或存储处理器1710运行指令后产生的数据。
当通信装置1700用于实现图4或图10所示的方法时，处理器1710用于实现上述处理单元1610的功能，接口电路1720用于实现上述收发单元1620的功能。
当上述通信装置为应用于终端设备的芯片时，该终端设备芯片实现上述方法实施例中终 端设备的功能。该终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收信息，该信息是网络设备发送给终端设备的；或者，该终端设备芯片向终端设备中的其它模块(如射频模块或天线)发送信息，该信息是终端设备发送给网络设备的。
当上述通信装置为应用于网络设备的模块时，该网络设备模块实现上述方法实施例中网络设备的功能。该网络设备模块从网络设备中的其它模块(如射频模块或天线)接收信息，该信息是终端设备发送给网络设备的；或者，该网络设备模块向网络设备中的其它模块(如射频模块或天线)发送信息，该信息是网络设备发送给终端设备的。这里的网络设备模块可以是网络设备的基带芯片，也可以是DU或其他模块，这里的DU可以是开放式无线接入网(open radio access network，O-RAN)架构下的DU。
可以理解的是，本申请的实施例中的处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其它通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其它可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。通用处理器可以是微处理器，也可以是任何常规的处理器。
本申请的实施例中的方法步骤可以通过硬件的方式来实现，也可以由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器、闪存、只读存储器、可编程只读存储器、可擦除可编程只读存储器、电可擦除可编程只读存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于网络设备或终端设备中。当然，处理器和存储介质也可以作为分立组件存在于网络设备或终端设备中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行所述计算机程序或指令时，全部或部分地执行本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其它可编程装置。所述计算机程序或指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序或指令可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，例如，软盘、硬盘、磁带；也可以是光介质，例如，数字视频光盘；还可以是半导体介质，例如，固态硬盘。该计算机可读存储介质可以是易失性或非易失性存储介质，或可包括易失性和非易失性两种类型的存储介质。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。

Claims (41)

  1. 一种传输指示方法，其特征在于，所述方法包括：
    终端设备接收第一指示信息，所述第一指示信息指示所述终端设备在第一时间窗内不接收第一下行传输，所述第一指示信息承载于第一媒体接入控制-控制元素MAC CE或第一下行控制信息DCI中；
    所述终端设备基于所述第一指示信息在所述第一时间窗内不接收所述第一下行传输。
  2. 根据权利要求1所述的方法，其特征在于，所述第一MAC CE或所述第一DCI承载于组播或广播的物理下行信道。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一时间窗的起始时刻由第一物理下行信道的传输时刻T 1和第一时间长度ΔT1确定，所述第一物理下行信道为承载所述第一MAC CE或所述第一DCI的物理下行信道，所述第一时间长度ΔT1是预设的或者是由所述第一指示信息指示的。
  4. 根据权利要求3所述的方法，其特征在于，所述第一时间窗的起始时刻为第一时间单元的起始时刻，所述第一时间单元为起始时刻不早于时刻T 2的最早时间单元，所述时刻T 2＝T 1+ΔT1。
  5. 根据权利要求3或4所述的方法，其特征在于，所述第一时间长度ΔT1大于或等于第一门限，所述第一门限为所述终端设备支持的、对所述第一物理下行信道的最短处理时长。
  6. 根据权利要求1～5中任意一项所述的方法，其特征在于，所述第一时间窗的持续时长是预设的或者由所述第一指示信息指示的。
  7. 根据权利要求1～6中任意一项所述的方法，其特征在于，所述第一下行传输包括以下的任意一种或几种：物理下行控制信道PDCCH、动态调度的物理下行共享信道PDSCH、半静态调度的下行共享物理信道SPS PDSCH、信道状态信息-参考信号CSI-RS或同步信号-广播信道块SSB。
  8. 根据权利要求1～6中任意一项所述的方法，其特征在于，所述第一下行传输包括：物理下行控制信道PDCCH、动态调度的物理下行共享信道PDSCH、半静态调度的下行共享物理信道SPS PDSCH和信道状态信息-参考信号CSI-RS，且所述第一下行传输不包括同步信号-广播信道块SSB。
  9. 根据权利要求1～8中任意一项所述的方法，其特征在于，
    所述第一指示信息的第一状态值指示所述终端设备在所述第一时间窗内不接收所述第一下行传输；
    所述第一指示信息的第二状态值指示所述终端设备在所述第一时间窗内接收所述第一下行传输。
  10. 根据权利要求1～9中任意一项所述的方法，其特征在于，所述方法还包括：
    若所述终端设备对承载所述第一MAC CE或所述第一DCI的第一物理下行信道译码不成功，所述终端设备在所述第一时间窗内接收所述第一下行传输；或者，
    若所述终端设备对承载所述第一MAC CE或所述第一DCI的第一物理下行信道译码不成功，所述终端设备在所述第一时间窗内不接收所述第一下行传输；或者，
    若所述终端设备对承载所述第一MAC CE或所述第一DCI的第一物理下行信道译码不成功，所述终端设备基于所述网络设备发送的无线资源控制RRC信令确定在所述第一时间窗内是否接收所述第一下行传输。
  11. 一种传输指示方法，其特征在于，所述方法包括：
    网络设备向终端设备发送第一指示信息，所述第一指示信息用于指示所述终端设备在第一时间窗内不接收第一下行传输，所述第一指示信息承载于第一媒体接入控制-控制元素MAC CE信令或第一下行控制信息DCI信令；
    所述网络设备在所述第一时间窗内不发送第一下行传输。
  12. 根据权利要求11所述的方法，其特征在于，所述第一MAC CE或所述第一DCI承载于组播或广播的物理下行信道。
  13. 根据权利要求11或12所述的方法，其特征在于，所述第一时间窗的起始时刻为第一时间单元的起始时刻，所述第一时间单元为起始时刻不早于时刻T 2的最早时间单元，所述时刻T 2＝T 1+ΔT1；
    其中，所述T 1为第一物理下行信道的传输时刻，所述ΔT1为第一时间长度，所述第一物理下行信道为承载所述第一MAC CE或所述第一DCI的物理下行信道，所述第一时间长度ΔT1为预设的，或者，所述第一指示信息还指示所述第一时间长度ΔT1。
  14. 根据权利要求13所述的方法，其特征在于，所述第一时间长度ΔT1大于或等于第一门限，所述第一门限为所述终端设备可支持的、对所述第一物理下行信道的最短处理时长。
  15. 根据权利要求11～14中任意一项所述的方法，其特征在于，所述第一时间窗的持续时长是预设的；或者，所述第一指示信息还指示所述第一时间窗的持续时长。
  16. 根据权利要求11～15中任意一项所述的方法，其特征在于，所述第一下行传输包括以下的任意一种或几种：物理下行控制信道PDCCH、动态调度的物理下行共享信道PDSCH、半静态调度的下行共享物理信道SPS PDSCH、信道状态信息-参考信号CSI-RS或同步信号-广播信道块SSB。
  17. 根据权利要求11～15中任意一项所述的方法，其特征在于，所述第一下行传输包括：物理下行控制信道PDCCH、动态调度的物理下行共享信道PDSCH、半静态调度的下行共享物理信道SPS PDSCH和信道状态信息-参考信号CSI-RS，且所述第一下行传输不包括同步信号-广播信道块SSB。
  18. 根据权利要求11～17中任意一项所述的方法，其特征在于，
    所述第一指示信息的第一状态值指示所述终端设备在所述第一时间窗内不接收所述第一下行传输；
    所述第一指示信息的第二状态值指示所述终端设备在所述第一时间窗内接收所述第一下行传输。
  19. 一种通信装置，其特征在于，所述通信装置包括：
    收发单元，用于接收第一指示信息，所述第一指示信息指示所述通信装置在第一时间窗内不接收第一下行传输，所述第一指示信息承载于第一媒体接入控制-控制元素MAC CE或第一下行控制信息DCI中；
    处理单元，用于基于所述第一指示信息在所述第一时间窗内不接收所述第一下行传输。
  20. 根据权利要求19所述的通信装置，其特征在于，所述第一MAC CE或所述第一DCI承载于组播或广播的物理下行信道。
  21. 根据权利要求19或20所述的通信装置，其特征在于，所述第一时间窗的起始时刻由第一物理下行信道的传输时刻T 1和第一时间长度ΔT1确定，所述第一物理下行信道为承载所述第一MAC CE或所述第一DCI的物理下行信道，所述第一时间长度ΔT1是预设的或者是由所述第一指示信息指示的。
  22. 根据权利要求21所述的通信装置，其特征在于，所述第一时间窗的起始时刻为第一时间单元的起始时刻，所述第一时间单元为起始时刻不早于时刻T 2的最早时间单元，所述时刻T 2＝T 1+ΔT1。
  23. 根据权利要求21或22所述的通信装置，其特征在于，所述第一时间长度ΔT1大于或等于第一门限，所述第一门限为所述通信装置支持的、对所述第一物理下行信道的最短处理时长。
  24. 根据权利要求19～23中任意一项所述的通信装置，其特征在于，所述第一时间窗的持续时长是预设的或者由所述第一指示信息指示的。
  25. 根据权利要求19～24中任意一项所述的通信装置，其特征在于，所述第一下行传输包括以下的任意一种或几种：物理下行控制信道PDCCH、动态调度的物理下行共享信道PDSCH、半静态调度的下行共享物理信道SPS PDSCH、信道状态信息-参考信号CSI-RS或同步信号-广播信道块SSB。
  26. 根据权利要求19～24中任意一项所述的通信装置，其特征在于，所述第一下行传输包括：物理下行控制信道PDCCH、动态调度的物理下行共享信道PDSCH、半静态调度的下行共享物理信道SPS PDSCH和信道状态信息-参考信号CSI-RS，且所述第一下行传输不包括同步信号-广播信道块SSB。
  27. 根据权利要求19～26中任意一项所述的通信装置，其特征在于，
    所述第一指示信息的第一状态值指示所述通信装置在所述第一时间窗内不接收所述第一下行传输；
    所述第一指示信息的第二状态值指示所述通信装置在所述第一时间窗内接收所述第一下行传输。
  28. 根据权利要求19～27中任意一项所述的通信装置，其特征在于，
    所述收发单元，还用于若对承载所述第一MAC CE或所述第一DCI的第一物理下行信道译码不成功，则在所述第一时间窗内接收所述第一下行传输；或者，
    所述收发单元，还用于若对承载所述第一MAC CE或所述第一DCI的第一物理下行信道译码不成功，则在所述第一时间窗内不接收所述第一下行传输；或者，
    所述收发单元，还用于若对承载所述第一MAC CE或所述第一DCI的第一物理下行信道译码不成功，则基于所述网络设备发送的无线资源控制RRC信令确定在所述第一时间窗内是否接收所述第一下行传输。
  29. 一种通信装置，其特征在于，所述通信装置包括：
    收发单元，用于向终端设备发送第一指示信息，所述第一指示信息用于指示所述终端设备在第一时间窗内不接收第一下行传输，所述第一指示信息承载于第一媒体接入控制-控制元素MAC CE信令或第一下行控制信息DCI信令；
    所述收发单元，还用于在所述第一时间窗内不发送第一下行传输。
  30. 根据权利要求29所述的通信装置，其特征在于，所述第一MAC CE或所述第一DCI承载于组播或广播的物理下行信道。
  31. 根据权利要求29或30所述的通信装置，其特征在于，所述第一时间窗的起始时刻为第一时间单元的起始时刻，所述第一时间单元为起始时刻不早于时刻T 2的最早时间单元，所述时刻T 2＝T 1+ΔT1；
    其中，所述T 1为第一物理下行信道的传输时刻，所述ΔT1为第一时间长度，所述第一物理下行信道为承载所述第一MAC CE或所述第一DCI的物理下行信道，所述第一时间长度ΔT1为预设的，或者，所述第一指示信息还指示所述第一时间长度ΔT1。
  32. 根据权利要求31所述的通信装置，其特征在于，所述第一时间长度ΔT1大于或等于第一门限，所述第一门限为所述终端设备可支持的、对所述第一物理下行信道的最短处理时长。
  33. 根据权利要求29～32中任意一项所述的通信装置，其特征在于，所述第一时间窗的持续时长是预设的；或者，所述第一指示信息还指示所述第一时间窗的持续时长。
  34. 根据权利要求29～33中任意一项所述的通信装置，其特征在于，所述第一下行传输包括以下的任意一种或几种：物理下行控制信道PDCCH、动态调度的物理下行共享信道PDSCH、半静态调度的下行共享物理信道SPS PDSCH、信道状态信息-参考信号CSI-RS或同步信号- 广播信道块SSB。
  35. 根据权利要求29～33中任意一项所述的通信装置，其特征在于，所述第一下行传输包括：物理下行控制信道PDCCH、动态调度的物理下行共享信道PDSCH、半静态调度的下行共享物理信道SPS PDSCH和信道状态信息-参考信号CSI-RS，且所述第一下行传输不包括同步信号-广播信道块SSB。
  36. 根据权利要求29～35中任意一项所述的通信装置，其特征在于，
    所述第一指示信息的第一状态值指示所述终端设备在所述第一时间窗内不接收所述第一下行传输；
    所述第一指示信息的第二状态值指示所述终端设备在所述第一时间窗内接收所述第一下行传输。
  37. 一种通信装置，其特征在于，包括处理器和接口电路，所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至10中任一项所述的方法，或者，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求11至18中任一项所述的方法。
  38. 一种芯片系统，其特征在于，所述芯片系统包括处理器和接口，所述处理器和所述接口耦合；所述接口用于接收或输出信号，所述处理器用于执行代码指令，以使权利要求1～10中任一项所述的方法被执行，或者使权利要求11～18中任一项所述的方法被执行。
  39. 一种通信系统，其特征在于，所述通信系统包括终端设备和网络设备，所述终端设备用于执行根据权利要求1～10中任一项所述的方法，所述网络设备用于执行根据权利要求11～18中任一项所述的方法。
  40. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如权利要求1至10中任一项所述的方法，或实现如权利要求11至18中任一项所述的方法。
  41. 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指令，当所述指令被执行时，使得如权利要求1～10中任意一项所述的方法被实现，或者，使得如权利要求11～18中任意一项所述的方法被实现。
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