Communication method and apparatus

A communication apparatus, wherein the communication apparatus comprises at least one processor, the at least one processor is configured to perform:

• receiving first information from a first cell, wherein the first information comprises non-terrestrial network (NTN) assistance information of a first satellite and NTN assistance information of a second satellite, the first satellite corresponds to the first cell, and a cell identity corresponding to the second satellite is the same as a cell identity of the first cell;
• re-synchronizing with the first cell;
• and
• starting a timer in accordance with epoch time of the NTN assistance information of the second satellite, with duration of the timer set to validity duration of the NTN assistance information of the second satellite, wherein
• the timer is started upon any one of the following:
• time at which the first satellite stops serving the first cell;
• time after time at which the first satellite stops serving the first cell, at an interval of preset time;
• or
• time at which the second satellite starts to serve the first cell.

A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions;

• and when the computer instructions are executed, the computer is enabled to perform:
• receiving first information from a first cell, wherein the first information comprises non-terrestrial network NTN assistance information of a first satellite and NTN assistance information of a second satellite, the first satellite corresponds to the first cell, and a cell identity corresponding to the second satellite is the same as a cell identity of the first cell;
• re-synchronizing with the first cell;
• and
• starting a timer in accordance with epoch time of the NTN assistance information of the second satellite, with duration of the timer set to validity duration of the NTN assistance information of the second satellite, wherein
• the timer is started upon any one of the following:
• time at which the first satellite stops serving the first cell;
• time after time at which the first satellite stops serving the first cell, at an interval of preset time;
• or
• time at which the second satellite starts to serve the first cell.