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：US20230319920A1

公开(公告)日：2023-10-05

申请号：US18004121

申请日：2020-08-28

Applicant: QUALCOMM Incorporated

Inventor： Ling XIE ,  Bhupesh Manoharlal UMATT ,  Reza SHAHIDI ,  Qingxin CHEN ,  Shan QING ,  Mutaz Zuhier Afif SHUKAIR ,  Tom CHIN ,  Hemanth Kumar RAYAPATI ,  Tongxin WANG ,  Daniel AMERGA ,  Peng HU ,  Xuqiang ZHANG ,  Xiaoyu LI ,  Liang HONG ,  Zhongsheng LI

IPC: H04W76/15 ,  H04W8/18

CPC classification number: H04W76/15 ,  H04W8/183 ,  H04W88/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured with two subscriptions. The first subscription may support dual connectivity with one or more cell groups, such as a master cell group (MCG) and a secondary cell group (SCG), while a second subscription may not support dual connectivity. Each subscription may support communications with one or more radio access technologies (RAT). The UE may use the protocol stack for a RAT in the first subscription to receive idle-mode signaling, such as one or more paging messages, from the second subscription using the same RAT.

公开(公告)号：US20240098694A1

公开(公告)日：2024-03-21

申请号：US18264401

申请日：2021-03-08

Applicant: QUALCOMM Incorporated

Inventor： Ling XIE ,  Liang HONG ,  Cheol Hee PARK ,  Qingxin CHEN ,  Jun HU ,  Rishav REJ ,  Reza SHAHIDI ,  Zhenyu LIU ,  Xiaoyu LI

IPC: H04W68/02 ,  H04W8/20 ,  H04W56/00 ,  H04W60/04

CPC classification number: H04W68/02 ,  H04W8/20 ,  H04W56/0015 ,  H04W60/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish one or more wireless connections for different subscriptions with a base station. The UE may receive an indication of a temporary mobile subscription identifier (TMSI) from the base station during a registration procedure. The UE may calculate a paging occasion (PO) based on the TMSI and may determine the PO fails to satisfy a threshold timing value. The UE may transmit one or more registration request to trigger additional registration procedures in which base station may transmit a new TMSI. The UE may calculate an updated PO based on the new TMSI. The UE may periodically receive one or more paging messages from the base station in a set of POs based on calculating the updated PO.