Working method and apparatus for communications device and communications device

A communications device comprising a processor, a memory, and a program or instructions stored in the memory and capable of running on the processor, wherein the program or instructions are executed by the processor to perform:

• transitioning from non-sleep state to sleep state in a case that at least one of the following is satisfied:
• a sleep state transition command from a second communications device has been received;
• and
• it has been determined that the first communications device meets a preset sleep state transition condition;
• wherein the sleep state transition condition comprises at least one of the following:
• received signal quality of the first communications device is higher than a first threshold, or received signal quality of the first communications device is lower than a second threshold;
• the first communications device undergoes no cell re-selection within a first preset time period;
• fluctuation range of received signal quality of the first communications device within a second preset time period is less than a third threshold;
• the first communications device receives no paging message or system message within a third preset time period;
• and
• continuous camping time of the first communications device in at least one other state than sleep state is longer than a first preset duration;
• wherein before the transitioning from non-sleep state to sleep state, the program or instructions are executed by the processor to perform:
• transmitting first indication information to the second communications device to indicate that the first communications device enters sleep state;
• wherein the first indication information is carried on any one of the following:
• a random access channel (RACH);
• a sounding reference signal (SRS);
• a reference signal (SR);
• a physical uplink shared channel (PUSCH);
• a predefined physical channel;
• or a predefined physical signal.

A readable storage medium, wherein the readable storage medium stores a program or instructions, and the program or instructions are executed by a processor to perform:

• transitioning from non-sleep state to sleep state in a case that at least one of the following is satisfied:
• a sleep state transition command from a second communications device has been received;
• and
• it has been determined that the first communications device meets a preset sleep state transition condition;
• wherein the sleep state transition condition comprises at least one of the following:
• received signal quality of the first communications device is higher than a first threshold, or received signal quality of the first communications device is lower than a second threshold;
• the first communications device undergoes no cell re-selection within a first preset time period;
• fluctuation range of received signal quality of the first communications device within a second preset time period is less than a third threshold;
• the first communications device receives no paging message or system message within a third preset time period;
• and
• continuous camping time of the first communications device in at least one other state than sleep state is longer than a first preset duration;
• wherein before the transitioning from non-sleep state to sleep state, the program or instructions are executed by the processor to perform:
• transmitting first indication information to the second communications device to indicate that the first communications device enters sleep state;
• wherein the first indication information is carried on any one of the following:
• a random access channel (RACH);
• a sounding reference signal (SRS);
• a reference signal (SR);
• a physical uplink shared channel (PUSCH);
• a predefined physical channel;
• or a predefined physical signal.