Transmission control method and apparatus, device, and storage medium

1. A method for transmission control, being applicable to a terminal device and comprising:

receiving indication information from a network device, the indication information indicating that a satellite in communication with the terminal device performs feeder link switch between a first non-terrestrial network (NTN) gateway and a second NTN gateway, and the first NTN gateway and the second NTN gateway being connected to a same cell corresponding to the network device; and

suspending uplink (UL) transmission and/or downlink (DL) transmission with the network device according to the indication information during the feeder link switch.

2. The method of claim 1 , wherein suspending the UL transmission and/or the DL transmission with the network device comprises:

pausing a first timer related to a media access control (MAC) entity of the terminal device, wherein the first timer is used to control the MAC entity to perform UL transmission and/or DL transmission.

3. The method of claim 2 , wherein after pausing the first timer related to the MAC entity of the terminal device, the method further comprises:

resuming the first timer after the feeder link switch is completed.

4. The method of claim 3 , wherein the indication information comprises first time information and second time information, the first time information indicates a start moment t1 of the feeder link switch, and the second time information indicates a completion moment t2 of the feeder link switch;

pausing the first timer related to the MAC entity of the terminal device comprises:

pausing the first timer at the start moment t1; and

resuming the first timer after the feeder link switch is completed comprises:

resuming the first timer at the completion moment t2.

5. The method of claim 3 , wherein the indication information comprises second time information, and the second time information indicates a completion moment t2 of the feeder link switch;

pausing the first timer related to the MAC entity of the terminal device comprises:

pausing the first timer upon receiving the indication information; and

resuming the first timer after the feeder link switch is completed comprises:

resuming the first timer at the completion moment t2.

6. The method of claim 3 , wherein the indication information comprises first time information and duration information, the first time information indicates a start moment t1 of the feeder link switch, and the duration information indicates a duration Δt of the feeder link switch;

pausing the first timer related to the MAC entity of the terminal device comprises:

pausing the first timer at the start moment t1; and

resuming the first timer after the feeder link switch is completed comprises:

resuming the first timer at a completion moment t1+Δt of the feeder link switch.

7. The method of claim 2 , wherein the first timer comprises at least one of:

a configured grant (CG) timer (configuredGrantTimer) corresponding to each UL hybrid automatic repeat request (HARQ) process reserved for CG;

a scheduling request (SR) prohibit timer (sr-ProhibitTimer) corresponding to each SR configuration;

a buffer status report (BSR) retransmission timer (retxBSR-Timer);

a BSR periodic timer (periodicBSR-Timer);

a discontinuous reception (DRX) inactivity timer (drx-InactivityTimer);

a DRX DL retransmission timer (drx-RetransmissionTimerDL) corresponding to each DL HARQ process;

a DRX UL retransmission timer (drx-RetransmissionTimerUL) corresponding to each UL HARQ process;

a DRX short cycle timer (drx-ShortCycleTimer);

a secondary cell (SCell) deactivation timer (sCellDeactivation Timer) corresponding to each SCell;

a bandwidth part (BWP) inactivity timer (bwp-InactivityTimer);

a data inactivity timer (dataInactivityTimer);

a beam failure detection timer (beamFailureDetectionTimer) for beam failure detection;

a beam failure recovery timer (beamFailureRecoveryTimer) for beam failure recovery; and

a time alignment timer (timeAlignmentTimer) corresponding to a timing advance group (TAG).

8. The method of claim 1 , wherein receiving the indication information from the network device comprises:

receiving a system message from the network device, wherein the system message comprises the indication information;

receiving a radio resource control (RRC) signaling from the network device, wherein the RRC signaling comprises the indication information; or

receiving a MAC control element (CE) signaling from the network device, wherein the MAC CE signaling comprises the indication information.

9. A method for transmission control, being applicable to a network device and comprising:

transmitting indication information to a terminal device, the indication information indicating that a satellite in communication with the terminal device performs feeder link switch between a first non-terrestrial network (NTN) gateway and a second NTN gateway, and the first NTN gateway and the second NTN gateway being connected to a same cell corresponding to the network device; and

suspending uplink (UL) transmission and/or downlink (DL) transmission with the terminal device during the feeder link switch.

10. The method of claim 9 , wherein the indication information comprises at least one of:

first time information indicating a start moment of the feeder link switch;

second time information indicating a completion moment of the feeder link switch; and

duration information indicating a duration of the feeder link switch.

11. The method of claim 9 , wherein transmitting the indication information to the terminal device comprises:

transmitting a system message to the terminal device, wherein the system message comprises the indication information;

transmitting a radio resource control (RRC) signaling to the terminal device, wherein the RRC signaling comprises the indication information; or

transmitting a media access control (MAC) control element (CE) signaling to the terminal device, wherein the MAC CE signaling comprises the indication information.

12. The method of claim 9 , further comprising:

resuming the UL transmission and/or the DL transmission with the terminal device after the feeder link switch is completed.

13. A terminal device, comprising:

a transceiver;

a memory configured to store computer programs; and

a processor configured to invoke and execute the computer programs stored in the memory to cause the transceiver to:

receive indication information from a network device, the indication information indicating that a satellite in communication with the terminal device performs feeder link switch between a first non-terrestrial network (NTN) gateway and a second NTN gateway, and the first NTN gateway and the second NTN gateway being connected to a same cell corresponding to the network device; and

suspend uplink (UL) transmission and/or downlink (DL) transmission with the network device according to the indication information during the feeder link switch.

14. The terminal device of claim 13 , wherein the processor configured to suspend the UL transmission and/or the DL transmission with the network device is configured to:

pause a first timer related to a media access control (MAC) entity of the terminal device, wherein the first timer is used to control the MAC entity to perform UL transmission and/or DL transmission.

15. The terminal device of claim 14 , wherein after pausing the first timer related to the MAC entity of the terminal device, the processor is_further configured to:

resume the first timer after the feeder link switch is completed.

16. The terminal device of claim 15 , wherein the indication information comprises first time information and second time information, the first time information indicates a start moment t1 of the feeder link switch, and the second time information indicates a completion moment t2 of the feeder link switch;

the processor configured to pause the first timer related to the MAC entity of the terminal device is configured to:

pause the first timer at the start moment t1; and

the processor configured to resume the first timer after the feeder link switch is completed is configured to:

resume the first timer at the completion moment t2.

17. The terminal device of claim 15 , wherein the indication information comprises second time information, and the second time information indicates a completion moment t2 of the feeder link switch;

the processor configured to pause the first timer related to the MAC entity of the terminal device is configured to:

pause the first timer upon receiving the indication information; and

the processor configured to resume the first timer after the feeder link switch is completed is configured to:

resume the first timer at the completion moment t2.

18. The terminal device of claim 15 , wherein the indication information comprises first time information and duration information, the first time information indicates a start moment t1 of the feeder link switch, and the duration information indicates a duration Δt of the feeder link switch;

the processor configured to pause the first timer related to the MAC entity of the terminal device the transmission suspending module is configured to:

pause the first timer at the start moment t1; and

the processor configured to resume the first timer after the feeder link switch is completed the transmission resuming module is configured to:

resume the first timer at a completion moment t1+Δt of the feeder link switch.

19. The terminal device of claim 14 , wherein the first timer comprises at least one of:

a configured grant (CG) timer (configuredGrantTimer) corresponding to each UL hybrid automatic repeat request (HARQ) process reserved for CG;

a scheduling request (SR) prohibit timer (sr-ProhibitTimer) corresponding to each SR configuration;

a buffer status report (BSR) retransmission timer (retxBSR-Timer);

a BSR periodic timer (periodicBSR-Timer);

a discontinuous reception (DRX) inactivity timer (drx-InactivityTimer);

a DRX DL retransmission timer (drx-RetransmissionTimerDL) corresponding to each DL HARQ process;

a DRX UL retransmission timer (drx-RetransmissionTimerUL) corresponding to each UL HARQ process;

a DRX short cycle timer (drx-ShortCycleTimer);

a secondary cell (SCell) deactivation timer (sCellDeactivation Timer) corresponding to each SCell;

a bandwidth part (BWP) inactivity timer (bwp-InactivityTimer);

a data inactivity timer (dataInactivityTimer);

a beam failure detection timer (beamFailureDetectionTimer) for beam failure detection;

a beam failure recovery timer (beamFailureRecoveryTimer) for beam failure recovery; and

a time alignment timer (timeAlignmentTimer) corresponding to a timing advance group (TAG).

20. The terminal device of claim 13 , wherein the processor configured to cause the transceiver to receive the indication information from the network device is configured to cause the transceiver to:

receive a system message from the network device, wherein the system message comprises the indication information;

receive a radio resource control (RRC) signaling from the network device, wherein the RRC signaling comprises the indication information; or

receive a MAC control element (CE) signaling from the network device, wherein the MAC CE signaling comprises the indication information.