Granted Patent B2

US 12,621,726 · App. 18/147,349 · Granted May 5, 2026

Inventor: Qianxi Lu (Dongguan, CN)

Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

H04W36/0061H04W36/03H04W88/04

Abstract

Claims (38)

1 . A communication method, comprising:

determining, by a first terminal device, according to first information, to transmit second information to a second terminal device, wherein the first information is received from a first network device, and the first information indicates that the first terminal device is to hand over to the second network device;

transmitting, by the first terminal device, the second information to the second terminal device, the second information indicating that the second terminal device is to hand over to a second network device, and the first terminal device providing relay service to the second terminal device; and

transmitting, by the first terminal device, third information to the second terminal device, wherein the third information indicates that a communication connection between the first terminal device and the second terminal device is to be disconnected.

2 . The method of claim 1 , further comprising:

receiving, by the first terminal device, the second information from a first network device.

3 . The method of claim 1 , wherein the first information further indicates that the first terminal device disconnects the communication connection with the second terminal device.

4 . The method of claim 1 , further comprising:

transmitting, by the first terminal device, information to the second terminal device, wherein the information indicates to the second network device handover complete of the first terminal device.

5 . The method of claim 1 , further comprising:

receiving, by the first terminal device, a handover complete message from the second terminal device, wherein the handover complete message is used to confirm that handover of the second terminal device to the second network device is completed; and

transmitting, by the first terminal device, the handover complete message to the second network device.

6 . A communication method, comprising:

receiving, by a second terminal device, second information from a first terminal device, the second information indicating that the second terminal device to hand over to a second network device, and the first terminal device providing relay service to the second terminal device, wherein the second information is determined to be transmitted to the second terminal device by the first terminal device according to first information, wherein the first information is received from a first network device by the first terminal device, and the first information indicates that the first terminal device is to hand over to the second network device; and

receiving, by the second terminal device, third information from the first terminal device, wherein the third information indicates that a communication connection between the first terminal device and the second terminal device is to be disconnected.

7 . The method of claim 6 , further comprising:

transmitting, by the second terminal device, fourth information to the first terminal device, wherein the fourth information indicates that a communication connection between the first terminal device and the second terminal device is to be disconnected.

8 . The method of claim 7 , wherein the second information further indicates that the second terminal device disconnects the communication connection between the first terminal device and the second terminal device.

9 . The method of claim 6 , further comprising:

starting, by the second terminal device, a first timer after the second information is received, wherein a timing duration of the first timer is a first time-interval.

10 . The method of claim 9 , further comprising:

determining, by the second terminal device, that handover of the second terminal device to the second network device fails, when the first timer expires.

11 . A terminal device configured to perform the method of claim 6 .

12 . A terminal device, comprising:

a transceiver;

a processor; and

a memory storing computer programs which, when executed by the processor, are operable with the processor to:

determine, according to first information received by the transceiver, to transmit second information to a second terminal device, wherein the first information is received from a first network device, and the first information indicates that the first terminal device is to hand over to the second network device;

cause the transceiver to transmit second information to a second terminal device, the second information indicating that the second terminal device is to hand over to a second network device, and the first terminal device providing relay service to the second terminal device;

cause the transceiver to transmit third information to the second terminal device, wherein the third information indicates that a communication connection between the first terminal device and the second terminal device is to be disconnected.

13 . The terminal device of claim 12 , wherein the transceiver is further configured to:

receive the second information from a first network device.

14 . The terminal device of claim 12 , wherein the first information further indicates that the first terminal device disconnects the communication connection with the second terminal device.

15 . The terminal device of claim 12 , wherein the transceiver is further configured to:

transmit information to the second terminal device, wherein the information indicates to the second network device handover complete of the first terminal device.

16 . The terminal device of claim 12 , wherein the transceiver is further configured to:

receive a handover complete message from the second terminal device, wherein the handover complete message is used to confirm that handover of the second terminal device to the second network device is completed; and

transmit the handover complete message to the second network device.

Assignments (1)

Continuity (2)

References Cited (30)