Wireless communication method, terminal device, and network device

A wireless communication method, comprising:

• transmitting, by a network device, first information to a terminal device, wherein the first information is used for a timing advance (TA) adjustment, the first information comprises a TA adjustment step size and a TA adjustment time point, and the first information and a first TA are used for the terminal device to perform the TA adjustment, wherein
• the first information further comprises at least one of:
• a TA adjustment time interval, a TA adjustment trigger condition, and indication information for enabling an auxiliary uplink TA adjustment function, and
• if the first TA is a TA indicated in a timing advance command (TAC) media access control-control element (MAC CE) or a TA indicated in a random access response (RAR), and the TA adjustment is a first TA adjustment, an adjusted TA is equal to a sum of the first TA and the TA adjustment step size;
• if the first TA is the TA indicated in the TAC MAC CE or the TA indicated in the RAR, and the TA adjustment is an i-th TA adjustment, the adjusted TA is equal to a sum of the first TA and i TA adjustment values, i being a positive integer and i>1;
• or
• if the first TA is a TA obtained through an (i−1)-th adjustment, and the TA adjustment is the i-th TA adjustment, the adjusted TA is equal to a sum of the first TA and the TA adjustment step size, i being a positive integer and i>2.

A terminal device, comprising:

• a processor;
• a transceiver;
• and
• a memory configured to store computer programs;
• wherein the processor is configured to execute the computer programs stored in the memory to:
• cause the transceiver to receive first information transmitted by a network device, wherein the first information is used for a timing advance (TA) adjustment, and the first information comprises a TA adjustment step size and a TA adjustment time point;
• and
• perform the TA adjustment according to the first information and a first TA, wherein
• the first information further comprises at least one of:
• a TA adjustment time interval, a TA adjustment trigger condition, and indication information for enabling an auxiliary uplink TA adjustment function, and
• if the first TA is a TA indicated in a timing advance command (TAC) media access control-control element (MAC CE) or a TA indicated in a random access response (RAR), and the TA adjustment is a first TA adjustment, an adjusted TA is equal to a sum of the first TA and the TA adjustment step size;
• if the first TA is the TA indicated in the TAC MAC CE or the TA indicated in the RAR, and the TA adjustment is an i-th TA adjustment, the adjusted TA is equal to a sum of the first TA and i TA adjustment values, i being a positive integer and i>1;
• or
• if the first TA is a TA obtained through an (i−1)-th adjustment, and the TA adjustment is the i-th TA adjustment, the adjusted TA is equal to a sum of the first TA and the TA adjustment step size, i being a positive integer and i>2.

A network device, comprising:

• a processor;
• a transceiver;
• and
• a memory configured to store computer programs;
• wherein the processor is configured to execute the computer programs stored in the memory to cause the transceiver to:
• transmit first information to a terminal device, wherein the first information is used for a timing advance (TA) adjustment, the first information comprises a TA adjustment step size and a TA adjustment time point, and the first information and a first TA are used for the terminal device to perform the TA adjustment, wherein
• the first information further comprises at least one of:
• a TA adjustment time interval, a TA adjustment trigger condition, and indication information for enabling an auxiliary uplink TA adjustment function, and
• if the first TA is a TA indicated in a timing advance command (TAC) media access control-control element (MAC CE) or a TA indicated in a random access response (RAR), and the TA adjustment is a first TA adjustment, an adjusted TA is equal to a sum of the first TA and the TA adjustment step size;
• if the first TA is the TA indicated in the TAC MAC CE or the TA indicated in the RAR, and the TA adjustment is an i-th TA adjustment, the adjusted TA is equal to a sum of the first TA and i TA adjustment values, i being a positive integer and i>1;
• or
• if the first TA is a TA obtained through an (i−1)-th adjustment, and the TA adjustment is the i-th TA adjustment, the adjusted TA is equal to a sum of the first TA and the TA adjustment step size, i being a positive integer and i>2.