WO2021003628A1 - Procédé et appareil de traitement pour temporisateur - Google Patents

Procédé et appareil de traitement pour temporisateur Download PDF

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Publication number
WO2021003628A1
WO2021003628A1 PCT/CN2019/094955 CN2019094955W WO2021003628A1 WO 2021003628 A1 WO2021003628 A1 WO 2021003628A1 CN 2019094955 W CN2019094955 W CN 2019094955W WO 2021003628 A1 WO2021003628 A1 WO 2021003628A1
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WO
WIPO (PCT)
Prior art keywords
duration
terminal
tbs
timer
drx
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PCT/CN2019/094955
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English (en)
Chinese (zh)
Inventor
王宏
毕文平
李军
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华为技术有限公司
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Priority to PCT/CN2019/094955 priority Critical patent/WO2021003628A1/fr
Publication of WO2021003628A1 publication Critical patent/WO2021003628A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communication technology, and in particular to a timer processing method and device.
  • a discontinuous reception (DRX) mechanism is introduced.
  • the DRX mechanism means that the terminal equipment shuts down the receiver for a period of time to reduce power consumption when there is no data transmission.
  • the base station configures a DRX cycle for the terminal.
  • the DRX cycle includes "on duration” and “opportunity for DRX". "on duration” is also called the activation period, and "opportunity for DRX” is also called the sleep period.
  • the terminal monitors the physical downlink control channel (PDCCH) during the on duration, and receives the physical downlink shared channel (PDSCH) according to the downlink control information (DCI) carried in the PDCCH to obtain
  • DCI downlink control information
  • TB or the physical uplink shared channel (PUSCH) carrying the uplink transmission block is sent according to the downlink control information carried in the PDCCH, and the terminal does not monitor the PDCCH during the sleep period.
  • PDCCH and TB are repeatedly sent, and each PDCCH can only call one TB.
  • the PDCCH needs to be repeatedly sent 256 times at most.
  • PDCCH needs to be repeatedly sent for each TB, and a large amount of resources are used to send PDCCH, resulting in low resource utilization efficiency.
  • one PDCCH In the method of scheduling multiple TBs with one PDCCH, one PDCCH repeatedly sends 256 times. 4 TBs can be scheduled at one time, which reduces the number of PDCCH transmissions and improves resource utilization efficiency.
  • the timers involved in the DRX mechanism are all designed based on one PDCCH for scheduling one TB, which cannot meet the above scenario of scheduling multiple TBs by one PDCCH, and may affect the continuity of service data transmission.
  • This application provides a timer processing method and device to improve resource utilization efficiency of TB transmission.
  • the first aspect of this application provides a timer processing method, including:
  • the terminal receives the physical downlink control channel PDCCH during the running time of the discontinuous reception DRX cycle.
  • the PDCCH includes scheduling information.
  • the scheduling information is used to indicate: the number of transmission blocks TB and the number of repetitions M of the TB, where L is greater than An integer of 1, and M is an integer greater than or equal to 1; the terminal determines the first duration of the DRX inactivation timer according to the L and the M; the terminal starts the DRX inactivation timer.
  • the first duration is greater than the duration of the terminal receiving or sending the L TBs, or the timeout time of the DRX inactivation timer is later than the sending or receiving completion time of the L TBs.
  • the method further includes: the terminal acquiring the second duration; the terminal determining the first duration of the DRX inactivation timer according to the L and the M, including: the terminal according to the second duration, The L and M determine the first duration.
  • the terminal acquiring the second duration includes: the terminal receives the second duration from a base station; or, the terminal acquires the second duration locally.
  • the terminal determines the first duration of the DRX inactivation timer according to the number of repetitions of the L and the TB, including : The terminal determines the first duration of the DRX inactivity timer according to the second duration, the L, the M, and the duration of the gap.
  • the terminal does not monitor the PDCCH in the gap between the adjacent TBs.
  • the method further includes:
  • the terminal receives gap indication information, where the gap indication information is used to indicate that the gap exists in the L TBs.
  • the terminal after the terminal monitors the PDCCH, in order to continuously receive or send TB during the dormant period of the DRX cycle, the terminal will start or restart a DRX-inactivity timer (DRX-inactivitytimer).
  • DRX-inactivitytimer a DRX-inactivity timer
  • the terminal device monitors the PDCCH to support the continuity of TB transmission.
  • the timing duration of the DRX inactive timer only matches the receiving or sending duration of a TB.
  • the traditional solution can continuously monitor the PDCCH after the terminal completes a TB to achieve continuous TB transmission. If a PDCCH is scheduled For multiple TBs, when multiple TBs have not been transmitted, the DRX inactivation timer has expired.
  • PDCCH causes discontinuous TB transmission.
  • the timing duration of the DRX inactive timer is adjusted by the number of repetitions of L and TB , The first duration of the adjusted DRX inactivation timer can be greater than the duration of the terminal receiving or sending L TBs.
  • the DRX inactivation timer of the terminal can support the terminal to receive or send After the multiple TBs are sent, the PDCCH can be continuously monitored to achieve transmission continuity. Therefore, the embodiment of the present application can support one PDCCH to schedule multiple TBs, thereby improving the resource utilization rate of TB transmission.
  • the second aspect of the present application provides a timer processing method, including:
  • the terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information includes: the number of TBs L and the number of repetitions M of the TB, where L is an integer greater than 1, M is an integer greater than or equal to 1; the terminal starts L hybrid automatic retransmission HARQ round trip timers corresponding to the L TBs at the first moment according to the L and the M.
  • the duration of the HARQ round trip timer is greater than the duration of sending the feedback information of the TB corresponding to the HARQ round trip timer.
  • the first moment is the moment or subframe when the terminal receives or transmits the last repeated block of the last TB among the L TBs.
  • the timing durations of the L HARQ round trip timers are different.
  • HARQ RTT Tt HARQ RTT T0 +(t-1) ⁇ N+(t-1) ⁇ G; among them, HARQ RTT T0 is the pre-configured timing duration of the HARQ round trip timer, N is the number of repeated transmissions of the PUCCH; G is the time length of the gap; t is an integer greater than 1 and less than or equal to the L.
  • the start of the HARQ round trip timer corresponding to each TB is delayed, thereby delaying the start of the retransmission timer, reducing unnecessary PDCCH monitoring of the terminal, and thereby reducing the power consumption of the terminal.
  • the third aspect of this application provides a timer processing method, including:
  • the terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle.
  • the PDCCH includes scheduling information of the transport block TB.
  • the scheduling information includes: the number of TBs L and the number of repetitions M of the TB, where L is greater than An integer of 1, and the M is an integer greater than or equal to 1; the terminal starts the DRX inactivation timer at the second moment according to the L and the M.
  • the sum of the time length between the time when the terminal starts receiving or sending the L TBs and the second time and the timing length of the DRX inactivation timer is greater than that of the terminal receiving or sending the L TBs.
  • the second time is later than the time when the terminal starts to receive or send the L TBs so that the DRX inactivation timer expires after the terminal sends or receives the L TBs.
  • the terminal starts the DRX inactivation timer at the last repeated block of the L-1 TB among the L TBs; or, the terminal starts the DRX inactivation timer in the L TB among the L TBs.
  • the first repeated block of the TB starts the DRX inactivation timer; or, the terminal starts the DRX inactivation timer in the last repeated block of the Lth TB in the L TBs.
  • the terminal does not monitor the PDCCH in the gap.
  • the terminal by delaying the start time of DRX-inactivitytimer, after the terminal completes receiving or sending L TBs, based on the DRX-inactivitytimer, the terminal can continue to monitor the PDCCH, so that it can continue to receive the next PDCCH scheduling. Realize the continuity of transmission business data.
  • the fourth aspect of the present application provides a timer processing method, including:
  • the terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle.
  • the PDCCH includes scheduling information of the transport block TB.
  • the scheduling information includes: the number of TBs L and the number of repetitions M of the TB, where L is greater than An integer of 1, the M is an integer greater than or equal to 1; the terminal receives the L TBs according to the L and the M; if the terminal has no TB to receive at the current moment, the duration timer is started.
  • the judgment logic is set in the terminal.
  • the terminal When the next DRX cycle arrives, if the terminal does not complete the reception or transmission of L transmission blocks, the terminal continues to receive or send the L transmission blocks; only when the terminal completes When receiving or sending L transport blocks and the next DRX cycle arrives, the terminal will start the onduration timer, so as to ensure that the terminal completes the reception or transmission of L transport blocks and avoid the start of onduration timer Cause the transmission service to fail.
  • the fifth aspect of the present application provides a timer processing method, including:
  • the terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle.
  • the PDCCH includes scheduling information of the transport block TB.
  • the scheduling information includes: the number of TBs L and the number of repetitions M of the TB, where L is greater than An integer of 1, and the M is an integer greater than or equal to 1, and the terminal updates the period duration of the DRX cycle according to the L and the M.
  • the updated cycle duration of the DRX cycle is greater than the duration of the terminal receiving L TBs.
  • the cycle length of the DRX cycle can be flexibly set according to the number L of TBs and the number of repetitions M of TBs, so that the cycle length of the DRX cycle can match the actual transmission situation of L TBs, thereby avoiding Multi-TB transmission service failure caused by onduration timer startup.
  • a sixth aspect of the present application provides a timer processing device, including:
  • the receiving module is used to receive the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB, Where L is an integer greater than 1, and M is an integer greater than or equal to 1; the determining module is used to determine the first duration of the DRX inactive timer according to the L and the M; the starting module is used to determine the first duration of the DRX inactive timer according to the L and the M M, determine the first duration of the DRX inactive timer; the terminal starts the DRX inactive timer.
  • the first duration is greater than the duration of the terminal receiving or sending the L TBs, or the timeout time of the DRX inactivation timer is later than the sending or receiving completion time of the L TBs.
  • the device further includes: a second duration acquisition module, configured to acquire a second duration; the determination module is further configured to determine the first duration according to the second duration, the L and M.
  • the second duration obtaining module is further configured to: receive the second duration from the base station; or, obtain the second duration locally.
  • the determining module is further configured to, according to the second duration, the L, the M, and the duration of the gap, Determine the first duration of the DRX inactive timer.
  • the terminal does not monitor the PDCCH in the gap between the adjacent TBs.
  • the device further includes: a gap indication information receiving module, configured to receive gap indication information, where the gap indication information is used to indicate that the gap exists in the L TBs.
  • the timing duration of the DRX inactive timer is adjusted by the number of repetitions of L and TB ,
  • the first duration of the adjusted DRX inactivation timer can be greater than the duration of the terminal receiving or sending L TBs.
  • a seventh aspect of the present application provides a timer processing device, including:
  • the receiving module is used to receive the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, the scheduling information includes: the number of TBs L and the number of repetitions of the TB M, where L is greater than An integer of 1, and M is an integer greater than or equal to 1.
  • the start module is used to start L hybrid automatic retransmission HARQ round trip timers corresponding to the L TBs at the first moment according to the L and the M.
  • the duration of the HARQ round trip timer is greater than the duration of sending the feedback information of the TB corresponding to the HARQ round trip timer.
  • the first moment is the moment or subframe when the terminal receives or transmits the last repeated block of the last TB among the L TBs.
  • the timing durations of the L HARQ round trip timers are different.
  • HARQ RTT Tt HARQ RTT T0 +(t-1) ⁇ N+(t-1) ⁇ G; among them, HARQ RTT T0 is the pre-configured timing duration of the HARQ round trip timer, N is the number of repeated transmissions of the PUCCH; G is the time length of the gap; t is an integer greater than 1 and less than or equal to the L.
  • the start of the HARQ round trip timer corresponding to each TB is delayed, thereby delaying the start of the retransmission timer, reducing unnecessary PDCCH monitoring of the terminal, and thereby reducing the power consumption of the terminal.
  • An eighth aspect of the present application provides a timer processing device, including:
  • the determining module is used to receive the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information of the transmission block TB, the scheduling information includes: the number of TBs L and the number of repetitions M of the TB, Where L is an integer greater than 1, and the M is an integer greater than or equal to 1.
  • the start module is used to start the DRX inactivation timer at the second moment according to the L and the M.
  • the sum of the time length between the time when the terminal starts receiving or sending the L TBs and the second time and the timing length of the DRX inactivation timer is greater than that of the terminal receiving or sending the L TBs.
  • the second time is later than the time when the terminal starts to receive or send the L TBs so that the DRX inactivation timer expires after the terminal sends or receives the L TBs.
  • the terminal starts the DRX inactivation timer at the last repeated block of the L-1 TB among the L TBs; or, the terminal starts the DRX inactivation timer in the L TB among the L TBs.
  • the first repeated block of the TB starts the DRX inactivation timer; or, the terminal starts the DRX inactivation timer in the last repeated block of the Lth TB in the L TBs.
  • the terminal does not monitor the PDCCH in the gap.
  • the terminal by delaying the start time of DRX-inactivitytimer, after the terminal completes receiving or sending L TBs, based on the DRX-inactivitytimer, the terminal can continue to monitor the PDCCH, so that it can continue to receive the next PDCCH scheduling. Realize the continuity of transmission business data.
  • a ninth aspect of the present application provides a timer processing device, including:
  • the determining module is used for the terminal to receive the physical downlink control channel PDCCH during the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information of the transmission block TB, the scheduling information includes: the number of TBs L and the number of repetitions of the TB M , Where L is an integer greater than 1, and M is an integer greater than or equal to 1; and according to the L and the M, the L TBs are received; the module is turned on, used to enable the persistence if the terminal does not need to receive TB at the current moment Timer.
  • the judgment logic is set in the terminal.
  • the terminal When the next DRX cycle arrives, if the terminal does not complete the reception or transmission of L transmission blocks, the terminal continues to receive or send the L transmission blocks; only when the terminal completes When receiving or sending L transport blocks and the next DRX cycle arrives, the terminal will start the onduration timer, so as to ensure that the terminal completes the reception or transmission of L transport blocks and avoid the start of onduration timer Cause the transmission service to fail.
  • a tenth aspect of the present application provides a timer processing device, including:
  • the determining module is used to receive the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information of the transmission block TB, the scheduling information includes: the number of TBs L and the number of repetitions M of the TB, Wherein L is an integer greater than 1, and the M is an integer greater than or equal to 1.
  • the update module is used to update the period duration of the DRX cycle according to the L and the M.
  • the updated cycle duration of the DRX cycle is greater than the duration of the terminal receiving L TBs.
  • the cycle length of the DRX cycle can be flexibly set according to the number L of TBs and the number of repetitions M of TBs, so that the cycle length of the DRX cycle can match the actual transmission situation of L TBs, thereby avoiding Multi-TB transmission service failure caused by onduration timer startup.
  • the eleventh aspect of the present application provides a timer processing device, including:
  • the processing device executes the method according to any one of the first aspect of the present application.
  • a twelfth aspect of the present application provides a timer processing device, including:
  • the processing device executes the method according to any one of the second aspect of the present application.
  • a thirteenth aspect of the present application provides a timer processing device, including:
  • the processing device executes the method according to any one of the third aspect of the present application.
  • a fourteenth aspect of the present application provides a timer processing device, including:
  • the processing device executes the method according to any one of the fourth aspect of the present application.
  • a fifteenth aspect of the present application provides a timer processing device, including:
  • the processing device executes the method according to any one of the fifth aspect of the present application.
  • the sixteenth aspect of the present application provides a computer storage medium, including computer program instructions, which when run on a computer, cause the computer to execute the method provided by any of the foregoing implementations.
  • the seventeenth aspect of the present application provides a computer program product, the computer program product contains computer-readable instructions, and when the computer-readable instructions are executed by a processor, the method provided by any of the foregoing implementations is implemented.
  • An eighteenth aspect of the present application provides a communication system including a terminal and a base station, and the terminal and the base station are used to implement the method provided by any of the foregoing implementation manners.
  • FIG. 1 is a schematic diagram of a network architecture to which an embodiment of this application is applicable;
  • Figure 2 is a schematic diagram of a TB transmission process provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of DRX-inactivitytimer setting of a scenario provided by an embodiment of the application
  • FIG. 4 is a schematic diagram of DRX-inactivity timer setting in another scenario provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of the pre-configured timing duration of HARQ RTT timer in an enhanced machine type communication (eMTC) provided by an embodiment of the application;
  • eMTC enhanced machine type communication
  • FIG. 6 is a schematic diagram of the pre-configured timing duration of HARQ RTT timer in another eMTC provided by an embodiment of the application;
  • FIG. 7 is a schematic diagram of the pre-configured timing duration of HARQ RTT timer in the narrowband Internet of Things (NB-IoT) provided by an embodiment of the application;
  • NB-IoT narrowband Internet of Things
  • FIG. 8 is a schematic diagram of a PUCCH feedback manner provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of another PUCCH feedback manner provided by an embodiment of the application.
  • FIG. 10 is a schematic flowchart of a timer processing method provided in Embodiment 1 of this application.
  • FIG. 11 is a schematic flowchart of a method for processing DRX-inactivity timer according to Embodiment 1 of this application;
  • FIG. 12 is a schematic flowchart of another DRX-inactivitytimer processing method provided by Embodiment 1 of the application;
  • FIG. 13 is a schematic flowchart of another timer processing method provided in Embodiment 2 of this application.
  • FIG. 14 is a schematic diagram of turning on DRX-inactivity timer at the second moment according to the second embodiment of this application;
  • FIG. 16 is a schematic diagram of restarting DRX-inactivity timer provided by Embodiment 3 of the application.
  • FIG. 17 is a schematic flowchart of a method for processing a timer provided in the fourth embodiment of this application.
  • FIG. 18 is a schematic diagram of setting the HARQ RTT timer provided in the fourth embodiment of the application.
  • FIG. 19 is a schematic flowchart of a method for processing a timer according to Embodiment 5 of this application.
  • FIG. 20 is a schematic flowchart of a method for processing a timer according to Embodiment 6 of this application;
  • FIG. 21 is a schematic flowchart of a method for processing a timer according to Embodiment 7 of the present application.
  • FIG. 22 is a schematic diagram of the functional structure of a timer processing device provided in Embodiment 11 of this application;
  • FIG. 23 is a schematic diagram of the functional structure of a timer processing device provided in the twelfth embodiment of this application.
  • FIG. 24 is a schematic diagram of the functional structure of a timer processing device provided in Embodiment 13 of this application.
  • FIG. 25 is a schematic diagram of the functional structure of a timer processing device provided in Embodiment 14 of this application.
  • FIG. 26 is a schematic diagram of the functional structure of a timer processing device provided in Embodiment 15 of this application.
  • FIG. 27 is a schematic structural diagram of another timer processing apparatus provided by an embodiment of this application.
  • FIG. 1 is a schematic diagram of a network architecture to which the embodiment of the application is applicable.
  • the network architecture includes a base station and at least one terminal.
  • the base station mentioned in the embodiment of this application may be a base transceiver station (BTS) of a global system of mobile communication (GSM) system or a code division multiple access (CDMA) system.
  • BTS base transceiver station
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • NodeB can be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved NodeB, eNB) in a long term evolution (LTE) system , Access point (AP) or relay station, it can also be a base station (such as gNB or transmission point (TRP)) in the fifth generation mobile communication (5Generation, 5G) system, or cloud wireless Wireless controllers and wearable devices or vehicle-mounted devices in the cloud radio access network (CRAN) scenario. It is not limited here.
  • the 5G system is also called a new wireless communication system, a new radio (NR) or a next-generation mobile communication system.
  • the terminal mentioned in the embodiments of this application may be user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile equipment, UE terminal, terminal, Wireless terminal, UE agent, UE device, etc. It can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in the future 5G network or terminals in the future evolved public land mobile network (PLMN), etc.
  • UE user equipment
  • PLMN personal digital assistant
  • FIG. 2 shows a schematic diagram of the TB transmission process of the base station and the terminal in eMTC and NB-IoT.
  • the terminal monitors the PDCCH during the onduration timer (that is, the active period).
  • the base station will repeatedly transmit the PDCCH for k (k is a natural number) times.
  • the PDCCH can be used to invoke m (m is a natural number) PDSCH).
  • the terminal monitors the PDCCH during the onduration timer operation, the terminal repeatedly transmits the PDCCH on the PDCCH.
  • a DRX inactivity timer (DRX-inactivitytimer) is started in the last subframe. During the operation of the DRX-inactivitytimer, the terminal monitors the PDCCH.
  • starting a timer in a subframe can be understood as starting the timer at any time within a subframe, for example, starting the timer at the beginning of the subframe, or starting the timer at the beginning of the subframe.
  • the timer is started at the middle time of the frame, or the timer is started at the end time of the subframe, which is not limited in this application.
  • the base station For downlink, after the terminal obtains the TB from the PDSCH according to the PDCCH, the base station does not immediately schedule the process corresponding to the TB. For example, after the terminal obtains the TB, the terminal needs to process the TB (for example, decode the TB), and then the terminal sends to the base station n (n is a natural number) physical uplink control channel that carries feedback information, PUCCH) or physical uplink shared channel (PUSCH), the feedback information is used to indicate whether the TB is successfully decoded. Because the terminal is processing the TB and sending feedback information during the period, the base station will not schedule the terminal for the process corresponding to the TB. Therefore, the terminal does not need to monitor the PDCCH during this period.
  • n is a natural number
  • the terminal starts a hybrid automatic retransmit request round trip timer (hybrid auto retransmit request round trip time timer, HARQ RTT timer) in the subframe of the last repeated transmission of the TB.
  • HARQ RTT timer hybrid automatic retransmit request round trip timer
  • the terminal does not respond to this The process corresponding to HARQ RTT timer monitors PDCCH. If the HARQ RTT timer expires and the terminal has not successfully decoded the TB, it will start the DRX-retransmission timer (DRX-retransmissiontimer) to monitor the retransmission schedule of the TB.
  • DRX-retransmissiontimer DRX-retransmissiontimer
  • the terminal If the terminal does not receive the PDCCH any more until the DRX-inactivitytimer, on-duration timer, and DRX-retransmissiontimer all time out, the terminal enters the dormant state until the next onduration timer starts.
  • the uplink (UL) HARQ RTT timer and DRX-UL retransmission timer control whether the UE monitors the PDCCH.
  • the maximum value of DRX-inactivitytimer is 2560 psf, and the TB transmission duration corresponding to the maximum number of repetitions of PDSCH is 2048 psf.
  • psf is the PDCCH subframe, that is, the PDCCH subframe.
  • the timing duration of DRX-inactivitytimer is greater than the maximum transmission duration of one TB, so that even if the number of repetitions of PDSCH reaches the maximum, the timing duration of DRX-inactivitytimer can still guarantee the terminal
  • the DRX-inactivitytimer is still running, and the terminal can continuously monitor the PDCCH, which can achieve the purpose of scheduling the next TB and ensure the continuous transmission of service data without waiting until the next onduration timer starts.
  • the maximum transmission duration of L TBs is L ⁇ 2048 psf, where L is greater than 1.
  • the timing duration of DRX-inactivitytimer is less than the maximum transmission duration of L TBs. In this way, the following situation may occur, that is, the terminal has not completed the reception or transmission of L TBs, and the DRX-inactivitytimer has timed out. After receiving or sending a TB, if it is in the dormant period of the DRX cycle, the terminal no longer monitors the PDCCH. If the base station needs to continue to schedule the UE, it can only wait for the onduration timer of the next DRX cycle to start, resulting in discontinuous transmission of service data .
  • the first embodiment of the present application, the second embodiment of the present application, and the third embodiment of the present application can ensure the continuity of transmission service data by adjusting the DRX-inactivitytimer.
  • the HARQ RTT timer is started in the last repetition block (or called repetition) of the TB.
  • the HARQ RTT timer is started in the last repetition block (or called repetition) of the TB.
  • the HARQ RTT timer is started in the last repetition block (or called repetition) of the TB.
  • the TB transmitted for the first time can be defined as the initial block
  • the TB transmitted for the second to fourth transmissions can be defined as repeated blocks.
  • FDD frequency division duplexing
  • TDD time division duplexing
  • the terminal In a scenario where one PDCCH schedules one TB, the terminal only receives or transmits one TB at a time. After the terminal completes the reception or transmission of the one TB, it starts the HARQ RTT timer. During the operation of the HARQ RTT timer, for the receiving TB, the terminal The PUCCH can be sent to the base station. If the HARQ RTT timer expires and the terminal has not successfully received the TB, the DRX-retransmission timer is started to monitor the retransmission scheduling of the TB.
  • the setting of the HARQ RTT timer usually affects the UE's monitoring of the PDCCH.
  • a PUCCH feedback method is shown in Figure 8. Each TB corresponds to a piece of feedback information. After the terminal has received all the multiple TBs, the terminal sends to the base station in sequence from the first TB to the last TB.
  • the feedback information corresponding to the first TB to the feedback information corresponding to the last TB, as shown in FIG. 8 is the feedback information corresponding to transmission block 1, the feedback information corresponding to transmission block 2, and the feedback information L corresponding to transmission block L.
  • Another PUCCH feedback method is shown in FIG. 9, the feedback information of multiple TBs is merged into one unified feedback information. After the terminal completes all reception of the multiple TBs, the terminal sends the unified feedback information to the base station.
  • the foregoing feedback method is that the UE sends feedback information to the base station through PUCCH.
  • the UE may also send the feedback information to the base station through PUSCH, which is not limited in the embodiment of the present application.
  • the terminal starts the first round trip timer HARQ RTT timer1 corresponding to the first TB in the last repeated transmission subframe of the first TB.
  • RTT timer1 times out, if the terminal has not successfully received the first TB, it will start the first retransmission timer DRX-retransmissiontimer1 corresponding to the first TB; the terminal will start the first retransmission timer in the last retransmission subframe of the second TB.
  • the second round-trip timer HARQ RTT timer2 corresponding to the two TBs.
  • the second retransmission timer DRX-retransmissiontimer2 is started, and so on, until the end One terabyte.
  • the terminal can only receive or transmit one TB. Therefore, when the terminal receives or transmits the second TB, the base station generally does not schedule the terminal to retransmit the first TB. According to the above settings, it may be As a result, when the terminal receives or transmits the second TB, the DRX-retransmission timer1 is turned on, so that the UE performs unnecessary PDCCH monitoring, which will cause additional power consumption.
  • the fourth embodiment of the application and the fifth embodiment of the application adjust the HARQ RTT timer mechanism to reduce the power consumption of the terminal.
  • SC-PTM single-cell point-to-multipoint
  • SCPTM-SchedulingCycle SC-PTM service scheduling cycle
  • NPDCCH narrowband physical downlink control channel
  • the maximum number of PDSCH repetitions is 2048.
  • the terminal may need to start the onduration timer to monitor the NPDCCH before receiving the multiple TBs.
  • the terminal For the NB-IoT terminal, if the onduration timer is activated, the terminal will monitor the NPDCCH and no longer receive the PDSCH. The terminal fails to receive multiple TBs.
  • the sixth embodiment of the present application and the seventh embodiment of the present application adjust the onduration timer to avoid the failure of the multi-TB transmission service caused by the activation of the onduration timer.
  • the PDCCH mentioned in the embodiment of the application may be a machine type communication physical downlink control channel (machine type communication physical downlink control channel) MPDCCH or NPDCCH.
  • a TB can also be understood as a PDSCH transmission (a PDSCH transmission/reception), or a PUSCH transmission a PUSCH transmission/reception, or an uplink transmission (a UL transmission/reception), or a downlink transmission ( a DL transmission/reception).
  • the first TB can be understood as the first PDSCH transmission (first PDSCH transmission/reception), or the first PUSCH transmission (first PUSCH transmission/reception), or the first uplink transmission (first UL transmission/reception), Or the first downlink transmission (first DL transmission/reception). This concept is different from the last repeated transmission of a TB.
  • the last repeated transmission of a TB refers to a TB that needs to be repeated multiple times, and the last repeated transmission of a TB refers to the last of the multiple times.
  • any one of transmission block 1, transmission block 2 to transmission block L can be called a TB.
  • the number of repetitions for each TB is 4, then for transmission block 1, the transmission block 1 performs four repeated transmissions, and the last repeated transmission of transmission block 1 is the fourth transmission. It can be understood that if the number of repetitions of each TB is n times, the last repetitive transmission of the TB is the nth transmission.
  • FIG. 10 is a schematic flowchart of a timer processing method provided in Embodiment 1 of this application. As shown in FIG. 10, the method provided in this embodiment of the present application includes the following steps:
  • Step S101 The terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB, where L is an integer greater than 1, and M is an integer greater than or equal to 1.
  • the PDCCH is used to carry the downlink control information (DCI) sent by the base station to the terminal, that is, scheduling information.
  • DCI can indicate the number of TBs L and the repetition of each TB of the L TBs frequency.
  • the specific value of L and the specific number of repetitions of TB can be determined according to actual application scenarios, which are not specifically limited in the embodiment of the present application.
  • the active time of the discontinuous reception DRX cycle may be: the onduration timer of the DRX cycle or the running time of DRX-inactivitytimer or DRX-retransmissiontimer or DRX-ULRetransmissionTimer, During the running time of the DRX cycle, the terminal can monitor the PDCCH and receive the PDCCH.
  • Step S102 The terminal determines the first duration of the DRX inactivation timer according to the L and the M.
  • the duration for the terminal to receive or send the L TBs can be determined according to the specific values of the repetition times of L and TB.
  • the first duration of DRX-inactivitytimer can be adjusted to be greater than The terminal receives or sends L TB duration.
  • the specific value of the first duration of the DRX inactive timer and the specific manner for determining the first duration of the DRX inactive timer can be determined according to actual application scenarios, which are not specifically limited in the embodiment of the present application.
  • Step S103 The terminal starts the DRX inactivation timer.
  • the terminal may start the DRX inactivation timer in the last subframe of repeated PDCCH transmission.
  • the terminal may also start the DRX inactive timer at other times according to actual needs, and the embodiment of the present application does not specifically limit the specific time when the DRX inactive timer is started.
  • the first duration of DRX-inactivitytimer is greater than the duration of the terminal receiving or sending L TBs. Therefore, after the terminal completes receiving or sending L TBs, the terminal can continue based on the DRX-inactivitytimer Monitor the PDCCH, so that you can continue to receive the next PDCCH scheduling, and achieve the continuity of transmission service data.
  • the embodiment of the present application further includes: the terminal obtains the second duration.
  • the second duration is sent by the base station to the terminal through DCI, and the terminal may receive the second duration from the base station.
  • the second duration is stipulated by the protocol, and the terminal can obtain the second duration locally.
  • the second duration may be a constant identifying the duration of time, which is not specifically limited in the embodiment of the present invention.
  • step S102 the terminal determines the first duration according to the second duration, L and M.
  • the base station may send the second duration to the terminal through radio resource control (RRC) signaling.
  • RRC radio resource control
  • the second duration may be the duration of the DRX inactive timer configured on the network side.
  • the second duration can be used in the scenario of PDCCH scheduling 1 TB, that is, when the DCI in the PDCCH indicates to schedule 1 TB, the terminal starts the DRX inactive timer for the second duration. duration.
  • the specific value of the second duration may be determined according to actual application scenarios, which is not specifically limited in the embodiment of the present application.
  • the terminal when the DCI in the PDCCH indicates to schedule L TBs, the terminal starts the DRX inactive timer for the first duration.
  • the first duration is determined on the basis of the second duration and further based on the number of repetitions of L and TB.
  • the terminal starts the first duration of drx T0 + (L-1) ⁇ M.
  • the terminal starts the first duration of drx T0 + (L-i) ⁇ M.
  • the first duration can be flexibly set according to the number L of TBs and the number of repetitions M of TBs, so that the first duration can match the actual transmission conditions of the L TBs, and ensure the continuity of transmission service data. On this basis, the power consumption of additional monitoring of the PDCCH caused by the excessively long first duration can also be reduced.
  • step S102 includes: the terminal according to the second duration received from the base station, L, The number of repetitions of TB and the time length of the gap determine the first time length.
  • the length of the gap is also taken into consideration. It can be understood that the time length of the gap can be determined according to actual application scenarios, and the embodiment of the present application does not specifically limit it.
  • the first duration that the terminal starts is based on the second duration, the repetition of L and TB The number of times and the length of the gap are determined.
  • the terminal After receiving or sending, based on the DRX-inactivitytimer, the terminal can continue to monitor the PDCCH, so that it can continue to receive the next PDCCH scheduling to achieve the continuity of transmission service data.
  • the first duration of the terminal startup is drx T0 +(L-1) ⁇ M+( L–1) ⁇ G.
  • M is the number of repetitions of TB and G is the gap
  • the length of time, i and j are non-negative integers less than or equal to L.
  • the first duration of the terminal startup is drx T0 + (L-i) ⁇ M + ( L–j) ⁇ G.
  • the first duration can be flexibly set according to the number L of TBs, the number of repetitions M of TBs, and the time length G of the gap, so that the first duration can match the actual transmission situation of L TBs with gaps. , On the basis of ensuring the continuity of the transmission service data, it can also reduce the power consumption caused by the extra monitoring of the PDCCH caused by the excessively long first duration.
  • the terminal in the case that there is a gap between two adjacent TBs in the L TBs, the terminal does not monitor the PDCCH in the gap between the adjacent TBs.
  • the base station considering that the duration of the gap is generally short, the base station usually does not send the PDCCH during the gap. If the terminal continues to monitor the PDCCH during the gap, additional power consumption will be caused. Therefore, in this embodiment of the application, , Do not monitor PDCCH in the gap between adjacent TBs, which can reduce the power consumption of the terminal.
  • the base station may indicate in the DCI whether there is a gap between L TBs, and the terminal may receive gap indication information, which is used to indicate L transmission blocks There is a gap in.
  • the terminal by adjusting the duration of DRX-inactivitytimer, after the terminal completes the reception or transmission of L TBs, based on the DRX-inactivitytimer, the terminal can continue to monitor the PDCCH, so that it can continue to receive the next time PDCCH scheduling realizes the continuity of transmission service data.
  • FIG. 13 is a schematic flowchart of a timer processing method provided in Embodiment 2 of this application. As shown in FIG. 13, the method provided in this embodiment of the present application includes the following steps:
  • Step S201 The terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB, where L is an integer greater than 1, and M is an integer greater than or equal to 1.
  • Step S202 The terminal starts the DRX inactive timer at the second moment according to the L and the M.
  • the terminal may receive L TBs in PDSCH or transmit L TB blocks in PUSCH according to the instructions of the scheduling information.
  • the DRX-inactivitytimer is delayed in the embodiment of the application. Specifically, the timer is started at the second time. To ensure the continuity of service data transmission, DRX can be started at the second time.
  • the sum of the time between the time when the terminal starts receiving or sending L TBs and the second time and the timing duration of the DRX inactive timer is greater than the length of receiving or sending L TBs, or the second time It is later than the time when the terminal starts to receive or send the L TBs so that the DRX inactivation timer expires after the terminal finishes sending or receiving the L TBs.
  • time described in the embodiment of the present application is not limited to a certain time point, and may also be a small time range, for example, the time may be a subframe.
  • FIG. 14 shows the method of starting DRX-inactivitytimer at the second moment in the embodiment of the present application. It can be understood that the second moment may start from the terminal receiving or sending the first TB to the terminal. Any time between the end of receiving or sending the last TB.
  • the terminal by delaying the start time of DRX-inactivitytimer, after the terminal completes receiving or sending L TBs, based on the DRX-inactivitytimer, the terminal can continue to monitor the PDCCH, so that it can continue to receive the next PDCCH scheduling. Realize the continuity of transmission business data.
  • the way for the terminal to enable DRX-inactivitytimer may be: the terminal starts at the last repeat block (or repeat subframe) of the L-qth TB among the L TBs DRX inactivation timer, where q is a non-negative integer less than or equal to L; or, the terminal starts the DRX inactivation timer at the first repeated block of the L-qth TB among the L TBs; where q is less than Or a non-negative integer equal to L.
  • the terminal starts the DRX inactivation timer in the last repeated block of the Lth TB in the L TBs.
  • the start time of DRX-inactivitytimer may be the last repeat block of the L-1th TB, or it may be the first repeat block of the Lth TB Block, or it can be the first repeated block of the Lth TB.
  • the three opening moments are all near the moment of receiving or sending the last TB, and usually the timing of DRX-inactivitytimer is longer than the receiving or sending of one TB Therefore, enabling the DRX-inactivitytimer through these three methods can ensure that the DRX-inactivitytimer has not timed out at the end of the L-th TB transmission, thereby ensuring the continuity of the transmission service data.
  • the start time of the DRX-inactivitytimer may be p+Offset, where p may be the first repeated subframe of the Lqth TB, or p may be the last of the Lqth TB Repeat subframe; Offset is the offset, and its value is an integer (including positive integer, negative integer and zero).
  • the length of the gap can be considered as a factor, that is, the terminal needs to start receiving or sending L TBs
  • the sum of the duration between time and the second time, the timing duration of the DRX inactive timer, and the duration of (L-1) gaps is greater than the duration of receiving or sending L TBs and the duration of (L-1) intervals The sum.
  • the base station usually does not send the PDCCH during the gap. If the terminal continues to monitor the PDCCH during the gap, it will cause extra work. Therefore, in the embodiment of the present application, the PDCCH is not monitored in the gap between adjacent TBs, which can reduce the power consumption of the terminal.
  • the terminal by delaying the on time of DRX-inactivitytimer, after the terminal completes receiving or sending L TBs, based on the DRX-inactivitytimer, the terminal can continue to monitor the PDCCH, so that it can continue to receive One PDCCH scheduling realizes the continuity of transmission service data.
  • FIG. 15 is a schematic flowchart of a timer processing method provided in Embodiment 3 of this application. As shown in FIG. 15, the method provided in this embodiment of the present application includes the following steps:
  • Step S301 The terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB, where L is an integer greater than 1, and M is an integer greater than or equal to 1.
  • Step S302 The terminal receives or sends L TBs according to the L and the M, and when the DRX inactivation timer expires, if the terminal has not completed receiving or sending L transport blocks, the terminal restarts the DRX inactivation timer.
  • the judgment logic is set in the terminal.
  • the DRX inactivation timer expires, if the terminal does not complete the reception or transmission of L transport blocks, and the terminal restarts the DRX inactivation timer, it can ensure that the terminal completes L
  • the terminal can continuously monitor the PDCCH, so that it can continue to receive the next PDCCH scheduling to achieve the continuity of transmission service data.
  • the DRX-inactivitytimer start time may be the DRX-inactivitytimer start time in the prior art. That is, if the terminal receives a PDCCH, and the PDCCH indicates a new transmission, the terminal starts DRX-inactivitytimer.
  • the turn-on time of the DRX-inactivitytimer may also be other turn-on time determined according to actual application scenarios, which is not specifically limited in the embodiment of the present application. If the PDCCH indicates the transmission of L TBs, when the DRX-inactivitytimer times out and the L TBs have not completed transmission, the terminal restarts the DRX-inactivitytimer.
  • the base station usually does not send the PDCCH during the gap. If the terminal continues to monitor the PDCCH during the gap, additional power consumption will be caused. Therefore, in this embodiment of the application, if There are gaps between adjacent TBs, and the PDCCH is not monitored in the gaps between adjacent TBs, which can reduce the power consumption of the terminal.
  • the terminal by setting the judgment logic in the terminal, when the DRX inactivation timer expires, if the terminal has not completed receiving or sending L transport blocks, the terminal restarts the DRX inactivation timer, then It can be ensured that after the terminal completes the reception or transmission of L TBs, based on the DRX-inactivitytimer, the terminal can continuously monitor the PDCCH, so that it can continue to receive the next PDCCH scheduling, and achieve the continuity of transmission service data.
  • FIG. 17 is a schematic flowchart of a timer processing method provided in Embodiment 4 of this application. As shown in FIG. 17, the method provided in this embodiment of the present application includes the following steps:
  • Step S401 The terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB, where L is an integer greater than 1, and M is an integer greater than or equal to 1.
  • Step S402 The terminal starts L hybrid automatic retransmission HARQ round trip timers corresponding to L TBs at the first moment according to L and M.
  • the duration of the HARQ round trip timer corresponding to each TB is greater than the duration of the terminal sending the feedback information corresponding to the TB to the base station.
  • the feedback information may be carried on the physical uplink control channel PUCCH.
  • the timeout moment of the HARQ round trip timer corresponding to each TB is the end moment when the UE sends the feedback information corresponding to the TB to the base station.
  • the terminal starts L hybrid automatic retransmission HARQ round-trip timers at the first moment. It may be that the terminal starts at the first moment for each TB or the process corresponding to each TB. A HARQ round trip timer.
  • the terminal starts L HARQ round trip timers at the first moment.
  • the HARQ RTT timers corresponding to L TBs are uniformly started at the first moment, so that when multiple TBs are scheduled by one PDCCH, the HARQ round trip timer is prevented from being triggered by the TB received in advance, and the start is triggered.
  • Retransmission timer, and the base station will not schedule the retransmission of the TB before receiving the feedback information of the TB. If the retransmission timer is triggered to start, the UE may monitor the PDCCH and cause the UE power consumption to increase.
  • the HARQ round trip timer corresponding to each TB is delayed to start, which further delays the start of the retransmission timer and reduces unnecessary PDCCH monitoring by the terminal.
  • the HARQ round trip timer corresponding to each TB is longer than the duration of the terminal sending feedback information to the base station, so for each TB, the HARQ RTT timer controls the terminal during the period when the terminal sends feedback information to the base station. The PDCCH is not monitored, so that the power consumption of the terminal can be reduced.
  • the HARQ round trip timer corresponding to a TB can also be understood as a timer corresponding to a HARQ process.
  • the HARQ round trip timer corresponding to a TB can also be understood as a HARQ round trip timer corresponding to a HARQ process.
  • the first moment may be the moment when the terminal receives or transmits the last repeated block of the last TB among the L TBs or the last repeated subframe.
  • the terminal after the terminal receives or sends the last repeated block of the last TB in the L TBs, the terminal will uniformly send feedback information to the base station, so the terminal receives or sends the last TB of the L TBs
  • the HARQ round trip timer is started at the time of the last repeated block, so that the terminal does not monitor the PDCCH when sending feedback information to the base station, thereby reducing the power consumption of the terminal.
  • the timing durations of the L HARQ round-trip timers are different.
  • the terminal when the terminal sends feedback information to the base station, the terminal sends the feedback information corresponding to the first TB to the feedback information corresponding to the last TB to the base station in the order from the first TB to the last TB. information. Therefore, for L TBs, the time from the end of receiving or sending L TBs to when the terminal completes the sending of feedback information corresponding to L TBs is different. Therefore, according to the sending duration of feedback information corresponding to L TBs, To set the duration of L HARQ round trip timers to adapt to the sending of feedback information corresponding to L TBs.
  • the HARQ round-trip timer duration HARQ RTT Tt corresponding to the t-th TB satisfies the following relationship:
  • HARQ RTT Tt HARQ RTT T0 + (t-1) ⁇ N, where HARQ RTT T0 is the first duration, the first duration is pre-configured or received from the base station, and N is the transmission duration of the feedback information, or N Is the number of repeated transmissions of PUCCH; t is an integer greater than 1 and less than or equal to L.
  • the pre-configured value of HARQ RTT T0 may be different, and the specific pre-configured value of HARQ RTT T0 is not limited in the embodiment of the present application.
  • HARQ RTT timer T0 7+N.
  • HARQ RTT T1 7+N.
  • HARQ RTT T2 7+N+N.
  • HARQ RTT T3 7+N+N+N.
  • HARQ RTT Tp 7+p ⁇ N; p is less than or equal to a positive integer of L.
  • the HARQ RTT timer can be flexibly set according to the number of TBs L and the number of repetitions N of PUCCH, so that the HARQ RTT timer can match the length of the feedback information corresponding to the L TBs.
  • the start time of the DRX-retransmision timer corresponding to each TB can be made just after the feedback information of the TB is sent, avoiding starting the DRX-retransmision timer in advance, thereby reducing the power consumption of the terminal.
  • the L HARQ round trip timer duration HARQ RTT Tt corresponding to the t th TB in the round trip timer satisfies the following relationship:
  • HARQ RTT Tt HARQ RTT T0 +(t-1) ⁇ N+(t-1) ⁇ G
  • HARQ RTT T0 is the timing duration of the pre-configured HARQ round trip timer
  • N is the number of repeated PUCCH transmissions
  • G is the time length of the gap between two adjacent feedback information transmissions
  • t is greater than 1 and less than or equal to L The integer.
  • the terminal is in the L TB
  • the HARQ RTT timer is started for each TB or for each process, and the duration of the t-th HARQ RTT timer is HARQ RTT T0 +(t-1) ⁇ N+(t-1) ⁇ G.
  • the terminal starts the HARQ RTT timer for the process corresponding to the TB during the last repeated transmission of the last TB; this implementation manner may also include the HARQ RTT The timer runs until the feedback information corresponding to the last TB is sent.
  • the length of the gap is also taken into consideration. It can be understood that the time length of the gap can be determined according to actual application scenarios, and the embodiment of the present application does not specifically limit it.
  • the base station usually does not send the PDCCH during the gap. If the terminal continues to monitor the PDCCH during the gap, additional power consumption will be caused. Therefore, in the embodiment of the present application, The PDCCH is not monitored in the gap between adjacent TBs, which can reduce the power consumption of the terminal.
  • the timing duration of the L HARQ round-trip timers is the same.
  • the duration of each HARQ round trip timer can be 7+L ⁇ N.
  • the PDCCH indicates to schedule L TBs
  • the feedback information of the L TBs are sent independently (that is, not multiplexed together)
  • the last repeat transmission of the last TB among the L TBs The subframe starts HARQ RTT timer for each process corresponding to L TBs, and the duration is 7+L ⁇ N.
  • the last repeated transmission subframe of the last TB in the L TBs corresponds to the L TBs
  • Each process starts HARQ RTT timer, and the duration is 7+N.
  • the indication information indicating the scheduling of L TBs and/or the indication information indicating whether the feedback information is multiplexed together and/or the indication information indicating whether there is a gap between the TBs and/or the indication information indicating whether there is a gap between the feedback information may be carried in the PDCCH, or may also be carried in the RRC signaling.
  • the terminal after the terminal receives or sends the last repeated block of the last TB among the L TBs, the terminal will uniformly send feedback information to the base station. Therefore, in the terminal receiving or sending the L TBs
  • the HARQ RTT timer is started at the time of the last repeat block of the last TB, which enables the terminal to not monitor the PDCCH when sending feedback information to the base station, and delays the start of the retransmission timer, thereby reducing the power consumption of the terminal.
  • Embodiment 5 of the present application provides another timer processing method to reduce power consumption during data transmission.
  • FIG. 19 is a schematic flowchart of the timer processing method provided in Embodiment 5 of this application, as shown in FIG. 19, The method provided in the embodiment of the application includes the following steps:
  • Step S501 The terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB, where L is an integer greater than 1, and M is an integer greater than or equal to 1.
  • Step S502 The terminal receives or sends L TBs according to the L and the M, and the terminal starts a hybrid automatic retransmission HARQ round trip timer in the last repeated subframe of each of the L TBs; where each TB corresponds to a HARQ round trip timer.
  • the terminal starts the i-th HARQ round-trip timer in the last repeated subframe of the i-th TB among the L TBs, and the duration of the i-th HARQ round-trip timer is (Li) ⁇ M +7+i ⁇ N, where N is the duration of sending the feedback information corresponding to each TB or the number of sent subframes.
  • the terminal starts the i-th HARQ round-trip timer in the last repeated subframe of the i-th TB in the L TBs .
  • the duration of the i-th HARQ round-trip timer is (Li) ⁇ (M+G0)+7+i ⁇ N, where N is the duration of sending feedback information corresponding to each TB or the number of sent subframes.
  • the terminal starts in the last repeated subframe of the i-th TB among the L TBs
  • the i-th HARQ round-trip timer the duration of the i-th HARQ round-trip timer is (Li) ⁇ M+7+i ⁇ N+(i-1) ⁇ G1, where N is the duration of sending feedback information corresponding to each TB Or the number of subframes sent.
  • the terminal is in L
  • the i-th HARQ round-trip timer is started in the last repeated subframe of the i-th TB in each TB, and the duration of the i-th HARQ round-trip timer is (Li) ⁇ (M+G0)+7+i ⁇ N+(i -1) ⁇ G1, where N is the duration of sending feedback information corresponding to each TB or the number of sent subframes.
  • the terminal starts a hybrid automatic repeat HARQ round trip timer in the last repeated subframe of each of the L TBs, so that the terminal does not monitor the PDCCH when sending feedback information to the base station. And delay the start of the retransmission timer, so that the power consumption of the terminal can be reduced.
  • FIG. 20 is a schematic flowchart of a timer processing method provided in Embodiment 6 of this application. As shown in FIG. 20, the method provided in this embodiment of the present application includes the following steps:
  • Step S601 The terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB, where L is an integer greater than 1, and M is an integer greater than or equal to 1.
  • Step S602 The terminal receives L TBs according to L and M.
  • Step S603 If there is no transmission block to be received by the terminal at the current moment, start the on duration timer.
  • the judgment logic is set in the terminal.
  • the terminal When the next DRX cycle arrives, if the terminal does not complete the reception or transmission of L transmission blocks, the terminal continues to receive or send the L transmission blocks; only when the terminal completes When receiving or sending L transport blocks and the next DRX cycle arrives, the terminal will start the onduration timer, so as to ensure that the terminal completes the reception or transmission of L transport blocks and avoid the start of onduration timer Cause the transmission service to fail.
  • FIG. 21 is a schematic flowchart of a timer processing method provided in Embodiment 7 of this application. As shown in FIG. 21, the method provided in this embodiment of this application includes the following steps:
  • Step S701 The terminal receives the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB, where L is an integer greater than 1, and M is an integer greater than or equal to 1.
  • Step S702 The terminal updates the duration of the DRX cycle according to L and M.
  • the duration of the updated DRX cycle can be made longer than the duration of the terminal receiving L TBs, so that it can be ensured that when the next continuous timer starts, The terminal has completed the reception of L TBs, so that the failure of the multi-TB transmission service caused by the onduration timer can be avoided.
  • function (L) is a function of L
  • the specific function (L) can be L or L/s, and s is a positive integer less than or equal to L, which is not specifically limited in the embodiment of the present application.
  • the cycle length of the DRX cycle can be flexibly set according to the number L of TBs and the number of repetitions M of TBs, so that the cycle length of the DRX cycle can match the actual transmission situation of L TBs, thereby avoiding Multi-TB transmission service failure caused by onduration timer startup.
  • the embodiment of the application also provides a timer processing method.
  • SC-PTM if the terminal is an NB-IoT terminal, and if the PDCCH indicates a downlink transmission, the PDCCH of the terminal after the last subframe repeatedly received in the last TB
  • the DRX-inactivitytimerSCPTM is started in the first subframe of the occasion (occasion).
  • any of the embodiments can be independently applied to multi-TB transmission, so as to solve some technical problems in multi-TB transmission.
  • any of the embodiments can also be combined with each other according to actual application scenarios and applied to multi-TB transmission to solve technical problems in multi-TB transmission. The combination between the various embodiments will not be repeated here.
  • the eighth embodiment of this application provides another timer processing method, which is different from the way the terminal determines the first duration in the first embodiment of this application.
  • the base station determines the first duration according to the repetition times of L and TB , And send the first duration to the terminal.
  • the terminal receives the first duration sent by the base station, and starts the DRX inactive timer according to the first duration, and executes TB reception or transmission.
  • the record of one will not be repeated here.
  • the ninth embodiment of this application provides another timer processing method, which is different from the way the terminal determines the timing duration of HARQ RTT timer in the third embodiment of this application.
  • the base station determines according to the repetition times of L and TB The timing duration of HARQ RTT timer, and the timing duration of HARQ RTT timer is sent to the terminal. Accordingly, the terminal receives the timing duration of the HARQ RTT timer sent by the base station, and starts HARQ RTT timer according to the timing duration of HARQ RTT timer. Refer to the record in the third embodiment of the present application, which will not be repeated here.
  • the tenth embodiment of this application provides another timer processing method, which is different from the way the terminal determines the period length of the DRX cycle in the seventh embodiment of this application.
  • the base station determines the DRX according to the repetition times of L and TB.
  • the period length of the cycle, and the period length of the DRX cycle is sent to the terminal.
  • the terminal receives the period length of the DRX cycle sent by the base station, and performs TB transmission according to the period length of the DRX cycle.
  • Embodiment 7 of this application I won’t repeat it here.
  • FIG. 22 is a schematic diagram of the functional structure of a timer processing device provided in Embodiment 11 of this application. As shown in FIG. 22, the device provided in this embodiment of the application includes:
  • the receiving module 11 is configured to receive the physical downlink control channel PDCCH during the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information is used to indicate: the number L of transmission blocks TB and the number of repetitions M of the TB , Where L is an integer greater than 1, and M is an integer greater than or equal to 1; the determining module 12 is used to determine the first duration of the DRX inactive timer according to the L and the M; the starting module 13 is used to L and the M determine the first duration of the DRX inactive timer; the terminal starts the DRX inactive timer.
  • the first duration is greater than the duration of the terminal receiving or sending the L TBs, or the timeout time of the DRX inactivation timer is later than the sending or receiving completion time of the L TBs.
  • the device further includes: a second duration acquisition module, configured to acquire a second duration; the determination module is further configured to determine the first duration according to the second duration, the L and M.
  • the second duration obtaining module is further configured to: receive the second duration from the base station; or, obtain the second duration locally.
  • the determining module is further configured to, according to the second duration, the L, the M, and the duration of the gap, Determine the first duration of the DRX inactive timer.
  • the terminal does not monitor the PDCCH in the gap between the adjacent TBs.
  • the device further includes: a gap indication information receiving module, configured to receive gap indication information, where the gap indication information is used to indicate that the gap exists in the L TBs.
  • the timing duration of the DRX inactive timer is adjusted by the number of repetitions of L and TB ,
  • the adjusted first duration can be greater than the duration of the terminal receiving or sending L TBs.
  • the terminal's DRX inactivation timer can support the terminal to receive or send the multiple TBs. Later, the PDCCH can be continuously monitored to achieve transmission continuity. Therefore, the embodiment of the present application can support one PDCCH to schedule multiple TBs, thereby improving the resource utilization rate of TB transmission.
  • FIG. 23 is a schematic diagram of the functional structure of a timer processing device provided in the twelfth embodiment of this application. As shown in FIG. 23, the device provided in this embodiment of the application includes:
  • the receiving module 21 is configured to receive the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information, and the scheduling information includes: the number of TBs L and the number of repetitions M of the TB, where L is An integer greater than 1, and M is an integer greater than or equal to 1.
  • the start module 22 is configured to start L hybrid automatic retransmission HARQ round trip timers corresponding to the L TBs at the first moment according to the L and the M.
  • the duration of the HARQ round trip timer is greater than the duration of sending the feedback information of the TB corresponding to the HARQ round trip timer.
  • the first moment is the moment or subframe when the terminal receives or transmits the last repeated block of the last TB among the L TBs.
  • the timing durations of the L HARQ round trip timers are different.
  • HARQ RTT Tt HARQ RTT T0 +(t-1) ⁇ N+(t-1) ⁇ G; among them, HARQ RTT T0 is the pre-configured timing duration of the HARQ round trip timer, N is the number of repeated transmissions of the PUCCH; G is the time length of the gap; t is an integer greater than 1 and less than or equal to the L.
  • the start of the HARQ round trip timer corresponding to each TB is delayed, thereby delaying the start of the retransmission timer, reducing unnecessary PDCCH monitoring of the terminal, and thereby reducing the power consumption of the terminal.
  • FIG. 24 is a schematic diagram of the functional structure of a timer processing apparatus provided in Embodiment 13 of this application. As shown in FIG. 24, the apparatus provided in this embodiment of the present application includes:
  • the determining module 31 is configured to receive the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information of the transmission block TB, and the scheduling information includes: the number of TBs L and the number of repetitions of the TB M , Where L is an integer greater than 1, and the M is an integer greater than or equal to 1.
  • the start module 32 is configured to start the DRX inactivation timer at the second moment according to the L and the M.
  • the sum of the time length between the time when the terminal starts receiving or sending the L TBs and the second time and the timing length of the DRX inactivation timer is greater than that of the terminal receiving or sending the L TBs.
  • the second time is later than the time when the terminal starts to receive or send the L TBs so that the DRX inactivation timer expires after the terminal sends or receives the L TBs.
  • the terminal starts the DRX inactivation timer at the last repeated block of the L-1 TB among the L TBs; or, the terminal starts the DRX inactivation timer in the L TB among the L TBs.
  • the first repeated block of the TB starts the DRX inactivation timer; or, the terminal starts the DRX inactivation timer in the last repeated block of the Lth TB in the L TBs.
  • the terminal does not monitor the PDCCH in the gap.
  • the terminal by delaying the start time of DRX-inactivitytimer, after the terminal completes receiving or sending L TBs, based on the DRX-inactivitytimer, the terminal can continue to monitor the PDCCH, so that it can continue to receive the next PDCCH scheduling. Realize the continuity of transmission business data.
  • FIG. 25 is a schematic diagram of the functional structure of a timer processing apparatus provided in Embodiment 14 of this application. As shown in FIG. 25, the apparatus provided in this embodiment of the present application includes:
  • the determining module 41 is used for the terminal to receive the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information of the transmission block TB, the scheduling information includes: the number of TBs L and the number of repetitions of the TB M, where L is an integer greater than 1, the M is an integer greater than or equal to 1; and according to the L and the M, the L TBs are received; the turn-on module 42 is used to turn on the terminal if there is no TB to receive at the current moment The duration timer.
  • the judgment logic is set in the terminal.
  • the terminal When the next DRX cycle arrives, if the terminal does not complete the reception or transmission of L transmission blocks, the terminal continues to receive or send the L transmission blocks; only when the terminal completes When receiving or sending L transport blocks and the next DRX cycle arrives, the terminal will start the onduration timer, so as to ensure that the terminal completes the reception or transmission of L transport blocks and avoid the start of onduration timer Cause the transmission service to fail.
  • FIG. 26 is a schematic diagram of the functional structure of a timer processing apparatus provided in Embodiment 15 of this application. As shown in FIG. 26, the apparatus provided in this embodiment of the present application includes:
  • the determining module 51 is configured to receive the physical downlink control channel PDCCH within the running time of the discontinuous reception DRX cycle, the PDCCH includes scheduling information of the transmission block TB, the scheduling information includes: the number of TBs L and the number of repetitions of the TB M , Where L is an integer greater than 1, and the M is an integer greater than or equal to 1.
  • the update module 52 is configured to update the period duration of the DRX cycle according to the L and the M.
  • the updated cycle duration of the DRX cycle is greater than the duration of the terminal receiving L TBs.
  • the cycle length of the DRX cycle can be flexibly set according to the number L of TBs and the number of repetitions M of TBs, so that the cycle length of the DRX cycle can match the actual transmission situation of L TBs, thereby avoiding Multi-TB transmission service failure caused by onduration timer startup.
  • the timer processing device in this embodiment can be used to execute a corresponding method for timer processing.
  • the specific implementation manner and technical effect are similar, and details are not repeated here.
  • FIG. 27 is a schematic structural diagram of another timer processing device provided by an embodiment of the application.
  • the timer processing device includes a processor 61, a memory 62, and a transceiver 63.
  • the memory 62 uses To store a computer program, the transceiver 63 is used to communicate with other devices, and the processor 61 is used to execute the computer program stored in the memory 62, so that the timer processing device executes any of the above-mentioned embodiments The processing method of the timer.
  • the embodiments of the present application also provide a computer storage medium, in which computer-readable instructions are stored, and when the computer-readable instructions are executed by a processor, the method provided by any of the foregoing implementation manners is implemented.
  • the embodiments of the present application also provide a computer program product, which contains computer-readable instructions, and when the computer-readable instructions are executed by a processor, the method provided by any of the foregoing implementations is implemented.
  • the embodiments of the present application also provide a system on a chip or a system chip, which can be applied to a network device, and the system on a chip or a system chip includes: at least one communication interface, at least one processor, and at least A memory, the communication interface, the memory, and the processor are interconnected by a bus, and the processor executes the instructions stored in the memory so that the terminal can execute the terminal-side method.
  • the embodiments of the present application also provide a system on a chip or a system chip, the system on a chip or a system chip may be applied to a terminal device, and the system on a chip or a system chip includes: at least one communication interface, at least one processor, and at least A memory, the communication interface, the memory, and the processor are interconnected by a bus, and the processor executes the instructions stored in the memory so that the base station can execute the method on the base station side.
  • the embodiment of the present application also provides a communication system, which includes a terminal and a base station, and the terminal and the base station are used to implement the method provided by any of the foregoing implementation manners.
  • the processor in each of the above embodiments may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), and a field programmable gate array (FPGA) Or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in random access memory (RAM), flash memory, read-only memory (read-only memory, ROM), programmable read-only memory, or electrically erasable programmable memory, registers, etc. mature in the field Storage medium.
  • RAM random access memory
  • flash memory read-only memory
  • read-only memory read-only memory
  • ROM programmable read-only memory
  • electrically erasable programmable memory registers, etc. mature in the field Storage medium.
  • the storage medium is located in the memory, and the processor reads the instructions in the memory and completes the steps of the above method in combination with its hardware.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil de traitement pour un temporisateur. Après qu'un PDCCH comprenant des informations de planification de L blocs de transmission (TB) soit reçu au sein d'un temps de fonctionnement d'un cycle de réception discontinue (DRX), une durée de temporisation d'une temporisateur d'inactivité DRX est ajustée au moyen de L et du nombre d'instances de répétition des TB, ce qui peut rendre une première durée ajustée supérieure à la durée pendant laquelle un terminal reçoit ou envoie les L TB. Dans ce cas, lorsqu'une station de base planifie une pluralité de TB au moyen d'un PDCCH, le temporisateur d'inactivité DRX du terminal peut prendre en charge la surveillance continue du PDCCH par le terminal après que le terminal achève la réception ou l'envoi de la pluralité de TB, réalisant ainsi la continuité de la transmission. Par conséquent, les modes de réalisation de la présente invention peuvent prendre en charge la planification d'une pluralité de TB au moyen d'un PDCCH, ce qui permet d'augmenter le taux d'utilisation de ressources de la transmission TB.
PCT/CN2019/094955 2019-07-05 2019-07-05 Procédé et appareil de traitement pour temporisateur WO2021003628A1 (fr)

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CN102421148A (zh) * 2010-09-28 2012-04-18 华为技术有限公司 一种控制多种通信系统实现通信的方法和用户设备
US20170318566A1 (en) * 2016-04-28 2017-11-02 Samsung Electronics Co., Ltd Methods and systems for configuring timers in lte networks
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CN102421148A (zh) * 2010-09-28 2012-04-18 华为技术有限公司 一种控制多种通信系统实现通信的方法和用户设备
US20170318566A1 (en) * 2016-04-28 2017-11-02 Samsung Electronics Co., Ltd Methods and systems for configuring timers in lte networks
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