公开(公告)号：US20240172295A1

公开(公告)日：2024-05-23

申请号：US18548869

申请日：2021-05-29

Applicant: QUALCOMM Incorporated

Inventor： Yuyu YAN ,  Liang HONG ,  Jie MAO ,  Levent AYDIN ,  Erman KOKEN ,  yongle WU ,  Rebecca Wen-Ling YUAN ,  Ziad AHMAD ,  Brian Clarke BANISTER ,  Ashok MANTRAVADI ,  Nanrun WU ,  Xinyu WANG ,  Jie ZHU

IPC: H04W74/0833 ,  H04B17/318 ,  H04W74/08

CPC classification number: H04W74/0833 ,  H04B17/328 ,  H04W74/0866

Abstract: Aspects are provided which allow a UE to apply CFO compensation to resolve mismatched RAPIDs caused by uplink Doppler shifts in HST deployments. The UE obtains one or more RARs each including a RAPID, where each of the RARs is responsive to a random access message including a preamble. The UE determines, in each of a threshold number of the one or more RARs, that the RAPID of a corresponding RAR is different than the preamble of a corresponding random access message. The UE then offsets a carrier frequency for each of one or more subsequent random access messages in response to the determination. As a result, mismatched RAPIDs due to uplink Doppler shifts may be avoided and RACH success rates may thereby be improved.

公开(公告)号：US20250133387A1

公开(公告)日：2025-04-24

申请号：US18685746

申请日：2022-10-12

Applicant: QUALCOMM Incorporated

Inventor： Chunxia LI ,  Matthew Heng ZHANG ,  Yuyu YAN ,  Hua XU ,  Liang ZHU ,  Feng CHEN

IPC: H04W8/18 ,  H04W4/40 ,  H04W88/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first device may detect that a vehicle-to-everything (V2X) system information block (SIB) or reconfiguration information is unavailable based at least in part on a first subscription of the first device satisfying a condition. The first device may determine the V2X SIB or reconfiguration information associated with the first subscription based at least in part on V2X SIB or reconfiguration information associated with a second subscription of the first device. The first device may perform, to one or more of a network node or a second device and using the first subscription, a V2X transmission using the V2X SIB or reconfiguration information associated with the second subscription. Numerous other aspects are described.