US Patent No. 11,032,821

METHOD AND APPARATUS FOR TRANSMITTING BUFFER STATUS REPORT IN WIRELESS COMMUNICATION SYSTEM SUPPORTING DEVICE TO DEVICE COMMUNICATION


Patent No. 11,032,821
Issue Date June 08, 2021
Title Method And Apparatus For Transmitting Buffer Status Report In Wireless Communication System Supporting Device To Device Communication
Inventorship Ki Bum Kwon, Seoul (KR)
Assignee Innovative Technology Lab Co., Ltd., Seoul (KR)

Claim of US Patent No. 11,032,821

1. A method comprising:receiving, by a first wireless user device from a base station, configuration information associated with direct data transmission between the first wireless user device and one or more wireless user devices, wherein the configuration information comprises information of a resource selection mode for direct data transmission, and wherein the information of a resource selection mode indicates a resource pool from which the first wireless user device selects a resource for direct data transmission to one or more wireless user devices;
mapping a first target identity to a first group identity, and mapping a second target identity to a second group identity, wherein the first target identity is associated with at least one target wireless user device of a first group of target wireless user devices, and wherein the second target identity is associated with at least one target wireless user device of a second group of target wireless user devices;
transmitting, to the base station, a radio resource control (RRC) message comprising information of the first target identity and information of the second target identity; and
transmitting, to the base station, a signal associated with a MAC-layer message, wherein the MAC-layer message comprises:
a first field that indicates the first target identity and indicates the first group identity; and
a second field that indicates the second target identity and indicates the second group identity.