Granted Patent B2

US 12,689,998 · App. 18/605,225 · Granted Jul 21, 2026

Inventors: Chenchen Zhang (Shenzhen, CN); Fangyu Cui (Shenzhen, CN); Nan Zhang (Shenzhen, CN); Wei Cao (Shenzhen, CN)

Assignee: ZTE Corporation

H04W56/0015H04W56/0045H04W56/006

Abstract

Claims (43)

1 . A method of wireless communication, comprising:

transmitting, by a wireless device to a network device, a first message indicating at least one property of a validity timer associated with synchronization information determined by the wireless device;

wherein the validity timer indicates a validity time of positioning data of the wireless device;

wherein the property of the validity timer comprises one or more of: a starting time of the validity timer, an ending time of the validity timer, or a time window after expiry of the validity timer during which the network device is not to schedule a transmission from the wireless device;

wherein the synchronization information comprises one or more of: a rest time of the validity timer, a waiting time after expiry of the validity timer, or an indication of acquiring assistance information from the network device; and

wherein the first message includes a time value that indicates the rest time of the validity timer.

2 . The method of claim 1 , wherein the first message is transmitted after the wireless device determines the synchronization information.

3 . The method of claim 1 , wherein the synchronization information is determined by the wireless device by positioning data of the wireless device.

4 . The method of claim 1 ,

wherein the synchronization information is determined by the wireless device based on a second message comprising assistance information, and

wherein the second message, transmitted by the network device, comprises the assistance information including global navigation satellite system, GNSS, positioning information of the wireless device, ephemeris information of the network device, or a common timing advance parameter from the network device.

5 . The method of claim 1 , wherein the first message comprises indicating a timestamp at which the wireless device acquires assistance information for synchronization with the network device.

6 . A method of wireless communication, comprising:

receiving, by a network device from a wireless device, a first message indicating at least one property of a validity timer associated with synchronization information determined by the wireless device;

wherein the validity timer indicates a validity time of positioning data of the wireless device;

wherein the property of the validity timer comprises one or more of: a starting time of the validity timer, an ending time of the validity timer, or a time window after expiry of the validity timer during which the network device is not to schedule a transmission from the wireless device;

wherein the synchronization information comprises one or more of: a rest time of the validity timer, a waiting time after expiry of the validity timer, or an indication of the network device providing assistance information to the wireless device; and

wherein the first message includes a time value that indicates the rest time of the validity timer; and

determining, by the network device, the property of the validity timer according to the first message.

7 . The method of claim 6 , wherein the first message is transmitted by the wireless device after the wireless device determines the synchronization information.

8 . The method of claim 6 , wherein the synchronization information is determined by the wireless device by positioning data of the wireless device.

9 . The method of claim 6 , further including:

transmitting, by the network device to the wireless device, a second message;

wherein the second message includes assistance information usable by the wireless device to determine the synchronization information, and

wherein the assistance information includes global navigation satellite system, GNSS, positioning information of the wireless device, ephemeris information of the network device, or a common timing advance parameter from the network device.

10 . The method of claim 6 , wherein the first message comprises a timestamp at which the wireless device acquires assistance information for synchronization with the network device.

11 . An apparatus for wireless communication comprising a processor that is configured to perform a method, the processor configured to:

transmit, by a wireless device to a network device, a first message indicating at least one property of a validity timer associated with synchronization information determined by the wireless device;

wherein the validity timer indicates a validity time of positioning data of the wireless device;

wherein the property of the validity timer comprises one or more of: a starting time of the validity timer, an ending time of the validity timer, or a time window after expiry of the validity timer during which the network device is not to schedule a transmission from the wireless device;

wherein the synchronization information comprises one or more of: a rest time of the validity timer, a waiting time after expiry of the validity timer, or an indication of acquiring assistance information from the network device; and

wherein the first message includes a time value that indicates the rest time of the validity timer.

12 . The apparatus of claim 11 , wherein the first message is transmitted after the wireless device determines the synchronization information.

13 . The apparatus of claim 11 , wherein the synchronization information is determined by the wireless device by positioning data of the wireless device.

14 . An apparatus for wireless communication comprising a processor that is configured to perform a method, the processor configured to:

receive, by a network device from a wireless device, a first message indicating at least one property of a validity timer associated with synchronization information determined by the wireless device;

wherein the validity timer indicates a validity time of positioning data of the wireless device;

wherein the property of the validity timer comprises one or more of: a starting time of the validity timer, an ending time of the validity timer, or a time window after expiry of the validity timer during which the network device is not to schedule a transmission from the wireless device;

wherein the synchronization information comprises one or more of: a rest time of the validity timer, a waiting time after expiry of the validity timer, or an indication of the network device providing assistance information to the wireless device; and

wherein the first message includes a time value that indicates the rest time of the validity timer; and

determine, by the network device, the property of the validity timer according to the first message.

15 . The apparatus of claim 14 , wherein the first message is transmitted by the wireless device after the wireless device determines the synchronization information.

16 . The apparatus of claim 14 , wherein the synchronization information is determined by the wireless device by positioning data of the wireless device.

Assignments (1)

Continuity (2)

References Cited (39)