Patent ID: 11910391

Abstract:
Techniques for implementing an uplink control channel in Non-Orthogonal Multiple Access (NOMA) asynchronous transmissions are disclosed. The techniques described herein provide an additional control channel in NOMA transmissions for a user equipment (UE) (102) to indicate certain information to a base station (106) to enable the base station (106) to detect and decode the data transmitted by the UE (102). For example, uplink control information (UCI) is transmitted (406) via an uplink control channel in connection with a group user equipment identifier (group UE-ID) to enable the base station (106) to detect and decode the UCI. After decoding (506) the UCI based on the group UE-ID, the base station (106) obtains information usable to distinguish (508) the UE (102), such as a UE-specific ID, as well as to detect (510) and decode (512) a data transmission from the UE (102) on an uplink data channel.