公开(公告)号：US20240224339A1

公开(公告)日：2024-07-04

申请号：US18558343

申请日：2021-07-16

Applicant: QUALCOMM Incorporated

Inventor： Yiqing Cao ,  Jing Lei ,  Peter Gaal ,  Alberto Rico Alvarino ,  Kazuki Takeda ,  Juan Montojo ,  Wanshi Chen ,  Bin Han ,  Ting Wang ,  Yan Li ,  Zhimin Du ,  Kefeng Zhang

IPC: H04W74/0833 ,  H04W48/12

CPC classification number: H04W74/0833 ,  H04W48/12

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support configuring associations between system information of at least one downlink (DL) anchor carrier and at least one random access channel (RACH) occasion (RO) of an uplink (UL) anchor carrier for initial access in flexible multicarrier operations. System information may be transmitted by a base station to a UE over the DL anchor carrier. In aspects, the at least one DL anchor carrier may be mapped to an UL anchor carrier, or to one or more candidate UL anchor carriers from which the UE may configurably select the UL anchor carrier, for initial access operations. In aspects, the UL anchor carrier and/or the one or more candidate UL anchor carriers may be respectively associated with one or more ROs. The UE may perform initial access operations over the UL anchor carrier using the associated one or more ROs.

公开(公告)号：US11984995B2

公开(公告)日：2024-05-14

申请号：US17758238

申请日：2020-01-10

Applicant: QUALCOMM Incorporated

Inventor： Yiqing Cao ,  Yan Li ,  Bin Han

IPC: H04L1/1867 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L1/1887 ,  H04L5/0055 ,  H04L2001/0093

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a negative acknowledgment (NACK) feedback message for a broadcast/multicast communication is to be transmitted. The UE may transmit the NACK feedback message, via a radio access network (RAN), to a broadcast/multicast control plane function device of a core network based at least in part on determining that the NACK feedback message is to be transmitted. The UE may receive a retransmission of the broadcast/multicast communication based at least in part on transmitting the NACK feedback message.