# US 12,010,636 B2 · Wireless communication method, terminal device, and network device

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- Number: US 12,010,636 B2
- Document ID: US12010636B2
- Status: Granted
- Kind: B2
- Application number: 17/563,007
- Filed: 2021-12-27
- Published: 2022-04-21
- Granted: 2024-06-11
- Earliest claimed: 2019-08-05
- Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Inventors: Ning Yang
- Web page: https://patentgrep.com/patent/US12010636B2

## CPC

- H04W 56/00: Synchronisation arrangements
- H04W 56/0045: {compensating for timing error by altering transmission time}
- H04B 7/1851: {Systems using a satellite or space-based relay (H04B7/18508, H04B7/18521 take precedence; providing specific services H04B7/18523 - H04B7/18576)}
- H04B 7/18563: {Arrangements for interconnecting multiple systems (data switching networks H04L12/00)}
- H04W 74/0833: Random access procedures, e.g. with 4-step access
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

A wireless communication method, a terminal device, and a network device are provided in implementations of the present disclosure. The wireless communication method includes the following. The terminal device receives first information transmitted by the network device, where the first information is used for the TA adjustment.

## Claims

### Claim 1

A wireless communication method, comprising:
receiving, by a terminal device, 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
performing, by the terminal device, 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.

### Claim 2 (depends on 1)

The method of claim 1, wherein the TA adjustment trigger condition comprises at least one of:
a difference between two measured positions of the terminal device being greater than a threshold, a difference between two measured reference signal receiving powers (RSRP) of the terminal device being greater than a threshold, and a speed of the terminal device being greater than a threshold.

### Claim 3 (depends on 1)

The method of claim 1, wherein the first information comprises:
at least one TA adjustment information group, at least one order of use, and at least one group identifier, wherein the at least one order of use each indicates an order of use of one of the at least one TA adjustment information group, and the TA adjustment information group comprises the TA adjustment step size, the TA adjustment time point, and at least one of:
the TA adjustment time interval, the TA adjustment trigger condition, and the indication information for enabling an auxiliary uplink TA adjustment function.

### Claim 4 (depends on 3)

The method of claim 3, further comprising:
determining, by the terminal device, a first order of use among the at least one order of use according to group information or a group identifier corresponding to the terminal device.

### Claim 5 (depends on 1)

The method of claim 1, wherein the first information comprises:
at least one TA adjustment information group and a TA adjustment order, wherein the TA adjustment order indicates an order of use of the at least one TA adjustment information group, and the TA adjustment information group comprises the TA adjustment step size, the TA adjustment time point, and at least one of:
the TA adjustment time interval, the TA adjustment trigger condition, and the indication information for enabling an auxiliary uplink TA adjustment function.

### Claim 6 (depends on 5)

The method of claim 5, further comprising:
performing, by the terminal device, the TA adjustment according to the at least one TA adjustment information group, the TA adjustment order, and the first TA.

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
performing, by the terminal device, the TA adjustment according to the first information and the first TA within a duration of a first timer.

### Claim 8 (depends on 1)

The method of claim 1, further comprising:
transmitting, by the terminal device, first indication information to the network device, wherein the first indication information indicates that the terminal device has a TA adjustment capability.

### Claim 9 (depends on 1)

The method of claim 1, further comprising:
ignoring or skipping, by the terminal device, the first information if the terminal device does not have a TA adjustment capability.

### Claim 10

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.

### Claim 11 (depends on 10)

The method of claim 10, wherein the first information comprises:
at least one TA adjustment information group, at least one order of use, and at least one group identifier, wherein the at least one order of use each indicates an order of use of one of the at least one TA adjustment information group, and the TA adjustment information group comprises the TA adjustment step size, the TA adjustment time point, and at least one of:
the TA adjustment time interval, the TA adjustment trigger condition, and the indication information for enabling an auxiliary uplink TA adjustment function.

### Claim 12

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.

### Claim 13 (depends on 12)

The terminal device of claim 12, wherein the first information comprises:
at least one TA adjustment information group, at least one order of use, and at least one group identifier, wherein the at least one order of use each indicates an order of use of one of the at least one TA adjustment information group, and the TA adjustment information group comprises the TA adjustment step size, the TA adjustment time point, and at least one of:
the TA adjustment time interval, the TA adjustment trigger condition, and the indication information for enabling an auxiliary uplink TA adjustment function.

### Claim 14 (depends on 13)

The terminal device of claim 13, the processor is further configured to:
determine a first order of use among the at least one order of use according to group information or a group identifier corresponding to the terminal device.

### Claim 15 (depends on 12)

The terminal device of claim 12, wherein the first information comprises:
at least one TA adjustment information group and a TA adjustment order, wherein the TA adjustment order indicates an order of use of the at least one TA adjustment information group, and the TA adjustment information group comprises the TA adjustment step size, the TA adjustment time point, and at least one of:
the TA adjustment time interval, the TA adjustment trigger condition, and the indication information for enabling an auxiliary uplink TA adjustment function.

### Claim 16 (depends on 15)

The terminal device of claim 15, the processor is further configured to:
perform the TA adjustment according to the at least one TA adjustment information group, the TA adjustment order, and the first TA.

### Claim 17 (depends on 12)

The terminal device of claim 12, wherein the TA adjustment trigger condition comprises at least one of:
a difference between two measured positions of the terminal device being greater than a threshold, a difference between two measured reference signal receiving powers (RSRP) of the terminal device being greater than a threshold, and a speed of the terminal device being greater than a threshold.

### Claim 18 (depends on 12)

The terminal device of claim 12, the processor is further configured to:
perform the TA adjustment according to the first information and the first TA within a duration of a first timer.

### Claim 19

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.

### Claim 20 (depends on 19)

The network device of claim 19, wherein the first information comprises:
at least one TA adjustment information group, at least one order of use, and at least one group identifier, wherein the at least one order of use each indicates an order of use of one of the at least one TA adjustment information group, and the TA adjustment information group comprises the TA adjustment step size, the TA adjustment time point, and at least one of:
the TA adjustment time interval, the TA adjustment trigger condition, and the indication information for enabling an auxiliary uplink TA adjustment function.
