US Patent No. 10,117,284

METHOD AND APPARATUS FOR TRANSMITTING MEDIA ACCESS CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM SUPPORTING DEVICE TO DEVICE COMMUNICATION


Patent No. 10,117,284
Issue Date October 30, 2018
Title Method And Apparatus For Transmitting Media Access Control Information In Wireless Communication System Supporting Device To Device Communication
Inventorship Ki Bum Kwon, Seongnam (KR)
Assignee Innovative Technology Lab Co., Ltd., Seoul (KR)

Claim of US Patent No. 10,117,284

1. A first user equipment (UE) to perform a device-to-device communication with a second UE, the first UE comprising:a receiver to receive a first message transmitted from the second UE for a device-to-device communication between the first UE and the second UE, wherein the first message comprises a medium access control (MAC) header and a MAC payload, wherein the MAC header comprises a first source identification field, a first target identification field, and one or more MAC sub-headers for the device-to-device communication, wherein the first source identification field and the first target identification field are followed by the one or more MAC sub-headers; and
a processor to determine the second UE as a source of the first message by identifying the first source identification field associated with a source layer-2 identification of the second UE, to determine whether the first message is transmitted for the first UE by identifying the first target identification field associated with a target layer-2 identification of the first UE, and to retrieve a MAC control element from the MAC payload, the MAC control element corresponding to a MAC control element sub-header included in the one or more MAC sub-headers,
wherein at least one of the target layer-2 identification of the first UE and the source layer-2 identification of the second UE is determined from a proximity-based services identification configured for the second UE by a higher layer signaling for a device-to-device communication,
wherein the first target identification field has a length of 16 bits,
wherein the first target identification field has a value of zero when a transmission type used for a MAC Packet Data Unit (PDU) is broadcasting, and
wherein the first target identification field has a non-zero 16-bit value when a transmission type used for a MAC PDU is multicasting or unicasting.