Method and apparatus for determining handover configuration, and communication device

1 . A method for determining handover configuration, performed by user equipment (UE), comprising:

determining handover configuration for a cell handover based on handover configuration information of a target service satellite associated with the cell handover,

wherein the UE performs cellular mobile data communication via a satellite signal, and the handover configuration information comprises at least one of:

satellite identification information used to indicate the target service satellite for the cell handover;

beam information used to indicate a target beam for the cell handover;

cell identification information used to indicate a target cell for the cell handover;

ephemeris information of the target service satellite; or

resource configuration information used to indicate a transmission resource of the target service satellite for the cell handover, wherein the transmission resource of the target service satellite comprises at least one of: a working frequency point of the target service satellite; a working bandwidth of the target service satellite; or a random access preamble sequence of the target service satellite, and

wherein determining the handover configuration for the cell handover based on the handover configuration information of the target service satellite associated with the cell handover comprises: determining the target service satellite for the cell handover based on the ephemeris information of the target service satellite,

and the method further comprises:

sending, in response to determining the target service satellite for the cell handover, indication information associated with the cell handover to a base station;

wherein sending the indication information associated with the cell handover to the base station comprises:

sending, in response to a duration to an end of service time of a current service satellite being greater than or equal to a duration threshold, the indication information associated with the cell handover to the base station.

2 . The method according to claim 1 , further comprising:

receiving the handover configuration information of the target service satellite sent by the base station.

3 . The method according to claim 2 , further comprising:

performing a wireless signal measurement based on the handover configuration, and

performing the cell handover based on a measurement result obtained from the wireless signal measurement.

4 . The method according to claim 3 , further comprising:

receiving first time indication information indicating handover time;

wherein performing the wireless signal measurement based on the handover configuration, and performing the cell handover based on the measurement result obtained from the wireless signal measurement comprises:

performing, in response to the handover time being reached, the wireless signal measurement based on the handover configuration, and performing the cell handover based on the measurement result obtained from the wireless signal measurement.

5 . The method according to claim 3 , further comprising:

receiving trigger instruction information that triggers the cell handover;

wherein performing the wireless signal measurement based on the handover configuration, and performing the cell handover based on the measurement result obtained from the wireless signal measurement comprises:

performing, in response to receiving the trigger instruction information, the wireless signal measurement based on the handover configuration, and performing the cell handover based on the measurement result obtained from the wireless signal measurement.

6 . The method according to claim 5 , wherein receiving the trigger instruction information that triggers the cell handover comprises:

receiving a control instruction carrying the trigger instruction information.

7 . The method according to claim 1 , further comprising:

determining, when more than one target service satellite is determined based on the handover configuration information, one target service satellite for the cell handover from the more than one target service satellite, based on a selection instruction from the base station or a satellite determination rule.

8 . The method according to claim 1 , further comprising:

performing, in response to determining the target service satellite for the cell handover, a wireless signal measurement on the target service satellite, and performing the cell handover based on a measurement result obtained from the wireless signal measurement.

9 . The method according to claim 1 , further comprising:

receiving second time indication information indicating cell handover time, the second time indication being sent by the base station in response to the indication information; and

performing, in response to the cell handover time being reached, a wireless signal measurement on the target service satellite, and performing the cell handover based on a measurement result obtained from the wireless signal measurement.

10 . A communication device, comprising a processor, a memory, and executable instructions stored on the memory and capable of running on the processor, wherein when the executable instructions run on the processor, steps of the method for determining handover configuration according to claim 1 is caused to be executed.

11 . A non-transitory computer-readable storage medium having executable instructions stored thereon, which when executed by a processor, cause the method for determining handover configuration according to claim 1 to be implemented.

12 . A method for transmitting information, performed by a base station, comprising:

sending, in response to performing of cellular mobile data communication by user equipment (UE) via a satellite signal, handover configuration information of a target service satellite,

wherein the handover configuration information is used for the UE to determine handover configuration for a cell handover, and the handover configuration information comprises at least one of:

satellite identification information used to indicate the target service satellite for the cell handover;

beam information used to indicate a target beam for the cell handover;

cell identification information used to indicate a target cell for the cell handover;

ephemeris information of the target service satellite; or

resource configuration information used to indicate a transmission resource of the target service satellite for the cell handover, wherein the transmission resource of the target service satellite comprises at least one of: a working frequency point of the target service satellite; a working bandwidth of the target service satellite; or a random access preamble sequence of the target service satellite; and

receiving indication information associated with the cell handover, wherein the indication information associated with the cell handover is sent by the UE, in response to determination of the target service satellite for the cell handover based on the ephemeris information of the target service satellite and in response to a duration to an end of service time of a current service satellite being greater than or equal to a duration threshold.

13 . The method according to claim 12 , further comprising:

sending first time indication information indicating handover time for the UE to perform the cell handover; or

sending trigger instruction information that instructs the UE to perform the cell handover.

14 . The method according to claim 13 , wherein sending the trigger instruction information that instructs the UE to perform the cell handover comprises:

sending a control instruction carrying the trigger instruction information.

15 . The method according to claim 12 , further comprising at least one of:

stopping, in response to receiving the indication information, scheduling of data transmission between the UE and a UE's current service satellite; or

stopping, in response to receiving the indication information, scheduling of a wireless signal measurement on the UE's current service satellite performed by the UE.

16 . The method according to claim 12 , further comprising:

sending second time indication information indicating cell handover time for the UE to perform the cell handover.

17 . A communication device, comprising a processor, a memory, and executable instructions stored on the memory and capable of running on the processor, wherein when the executable instructions run on the processor, steps of the method for transmitting information according to claim 12 is caused to be executed.

18 . A non-transitory computer-readable storage medium having executable instructions stored thereon, which when executed by a processor, cause the method for transmitting information according to claim 12 to be implemented.

19 . The method according to claim 12 , further comprising:

sending a selection instruction, wherein the selection instruction is used for the UE to determine one target service satellite for the cell handover from more than one target service satellite determined based on the handover configuration information.