Device-to-Device D2D Communication Method and D2D Terminal Device
AssigneeHuawei Technologies Co., Ltd.
InventorsYu Cai, Yongbo Zeng, Bin Liu, Jian Wang, Nathan Edward Tenny
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Abstract
A device-to-device (D2D) communication method and a D2D terminal device, where the method includes determining, by a first device, a time that the first device is out of coverage of a synchronization source after leaving the coverage of the synchronization source determining, by the first device, target timing based on the time, and performing, by the first device, D2D communication based on the target timing. Hence, the target timing can be selected more accurately for the first device.
Claims22
A device-to-device (D2D) communication method, comprising:
- determining, by a first device, a time that the first device is out of coverage of a synchronization source after leaving the coverage of the synchronization source;
- determining, by the first device, target timing based on the time;
- and
- performing, by the first device, D2D communication based on the target timing.
-10. (canceled)
A device-to-device (D2D) communication method, comprising:
- searching, by a first device, synchronization information of a second device, the synchronization information of the second device comprising indication information indicating a time that the second device is out of coverage of a synchronization source after leaving the coverage of the synchronization source;
- selecting, by the first device, a synchronization reference source based on the indication information;
- and
- performing, by the first device D2D communication based on timing of the synchronization reference source.
A device-to-device (D2D) terminal device, comprising:
- a processor configured to:
- determine a time that the D2D terminal device is out of coverage of a synchronization source after leaving the coverage of the synchronization source;
- and
- determine target timing based on the time;
- and
- a communications device coupled to the processor and configured to perform D2D communication based on the target timing.
-28. (canceled)
Dependencies are inferred from the claim text.