US Patent No. 10,893,573

D2D COMMUNICATION METHOD, REMOTE USER EQUIPMENT, AND RELAY USER EQUIPMENT


Patent No. 10,893,573
Issue Date January 12, 2021
Title D2d Communication Method, Remote User Equipment, And Relay User Equipment
Inventorship Ning Yang, Guangdong (CN)
Assignee GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)

Claim of US Patent No. 10,893,573

1. A method for D2D communication, comprising:receiving, by a remote user equipment, a D2D discovery message sent by a relay user equipment, and acquiring a discontinuous reception parameter of the relay user equipment; and
sending a communication request message to the relay user equipment based on the discontinuous reception parameter of the relay user equipment,
wherein the receiving, by the remote user equipment, the D2D discovery message sent by the relay user equipment, and acquiring the discontinuous reception parameter of the relay user equipment, comprises one of:
acquiring, by the remote user equipment, a layer 2 user identification of the relay user equipment contained in the D2D discovery message, and determining the discontinuous reception parameter of the relay user equipment through the layer 2 user identification of the relay user equipment;
determining the discontinuous reception parameter of the relay user equipment through a preset field value contained in the D2D discovery message; or
determining the discontinuous reception parameter of the relay user equipment through information of discontinuous reception explicitly broadcast in the D2D discovery message,
wherein the determining the discontinuous reception parameter of the relay user equipment through the layer 2 user identification of the relay user equipment, comprises:
determining a discontinuous transmission start offset value based on any of the following manners:
the discontinuous transmission start offset value is equal to the layer 2 user identification of the relay user equipment; or
the discontinuous transmission start offset value is acquired by modulo of the layer 2 user identification of the relay user equipment with a preset value.