公开(公告)号：US20250039856A1

公开(公告)日：2025-01-30

申请号：US18917837

申请日：2024-10-16

Applicant: QUALCOMM Incorporated

Inventor： Tom CHIN ,  Rajeev PAL ,  Kuo-Chun LEE ,  Arvind Vardarajan SANTHANAM ,  Wei-Jei SONG ,  Abhishek BHATNAGAR ,  Min WANG

IPC: H04W72/0453 ,  H04W36/00 ,  H04W84/04

Abstract: Aspects are provided which allow a UE including an application processor and a modem to disable measurements of reference signals from 5G base stations which are inapplicable to EN-DC. The UE may receive a reference signal from a base station. The UE may identify a frequency range. The UE may provide, using the application processor, an indication to the modem. The UE may determine whether to measure the reference signal using the modem based on the indication provided to the modem from the application processor and whether the reference signal is within the identified frequency range and further based on whether the base station is standalone or non-standalone. The UE may refrain from measuring the reference signal in response to the determination. As a result, inter-RAT handovers from LTE base stations to 5G base stations are prevented, UE power consumption is thereby saved, and support for EN-DC is maintained.

公开(公告)号：US20220369176A1

公开(公告)日：2022-11-17

申请号：US17662978

申请日：2022-05-11

Applicant: QUALCOMM Incorporated

Inventor： Dominique Francois BRESSANELLI ,  Osama LOTFALLAH ,  Cogol TINA ,  Abhishek BHATNAGAR ,  Vitaly DRAPKIN ,  Lenaig Genevieve CHAPONNIERE

IPC: H04W36/00

Abstract: Aspects disclosed herein facilitate security handling of 5GS to EPC reselection are disclosed herein. An example method at a UE includes transmitting a first TAU request, the first TAU request encoded using a first security context associated with a first RAT, the first TAU request being integrity protected using a first uplink count based on the first security context, and the first TAU request including a first set of information including an identifier mapped to a second RAT associated with the first network entity. The example method also includes transmitting a second TAU request, the second TAU request including the first set of information, the second TAU request being integrity protected using a second uplink count. The example method also includes communicating based on a mapped security context based on the first security context and at least one of the first uplink count or the second uplink count.

公开(公告)号：US20150282044A1

公开(公告)日：2015-10-01

申请号：US14666928

申请日：2015-03-24

Applicant: QUALCOMM Incorporated

Inventor： Srinivasan BALASUBRAMANIAN ,  Arvind Vardarajan SANTHANAM ,  Abhishek BHATNAGAR

IPC: H04W40/10 ,  H04W52/02 ,  H04W24/08

CPC classification number: H04W40/10 ,  H04W24/08 ,  H04W36/0094 ,  H04W36/14 ,  H04W48/16 ,  H04W52/0203 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22

Abstract: Methods, computer-readable medium, and apparatus are described for coordinating system selection among a set of nodes. The described aspects include determining that a node is part of a subset of nodes, wherein each node in the subset of nodes performs one or more system scans for a set of nodes that includes the subset of nodes, performing the one or more system scans by the node on one or more Radio Access Technologies (RATs) in response to determining that the node is part of the subset of nodes, obtaining one or more system scan results from the one or more system scans on the one or more RATs, and transmitting the one or more system scan results to the set of nodes.

Abstract translation: 描述了用于协调一组节点之间的系统选择的方法，计算机可读介质和装置。 所描述的方面包括确定节点是节点子集的一部分，其中节点子集中的每个节点对包括节点子集的一组节点执行一个或多个系统扫描，通过以下步骤执行一个或多个系统扫描： 响应于确定节点是节点子集的一部分，在一个或多个无线电接入技术（RAT）上的节点，从一个或多个RAT上的一个或多个系统扫描获得一个或多个系统扫描结果，并且发送 一个或多个系统扫描结果到该组节点。

公开(公告)号：US20140099952A1

公开(公告)日：2014-04-10

申请号：US14047673

申请日：2013-10-07

Applicant: QUALCOMM INCORPORATED

Inventor： Abhishek BHATNAGAR ,  Shyamal RAMACHANDRAN ,  Vitaly DRAPKIN ,  Vamsi Krishna DOKKU ,  Hariharan SUKUMAR ,  Zhong REN ,  Vidula Rajeev KURUNDKAR

IPC: H04W60/00

Abstract: Methods and apparatus are provided for avoiding attempts by a UE to attach to a RAT network when that RAT network is unavailable. According to certain aspects, the UE may detect scenarios when the RAT network is unavailable and take preemptive action to prevent the UE from attempting to acquire service on that RAT. For example, the UE may effectively remove that RAT from a list of supported RATs by sending a UE capability message indicating that RAT is not supported, which may prevent network-initiated transitions of the UE to that RAT. The UE may also remove the unavailable RAT from an internal list of supported RATs, which may prevent UE-initiated transitions to that RAT.

Abstract translation: 提供了方法和装置，以避免当该RAT网络不可用时，UE尝试附着到RAT网络。 根据某些方面，当RAT网络不可用时，UE可以检测情况，并且采取抢先行动来防止UE尝试在该RAT上获取服务。 例如，UE可以通过发送指示不支持RAT的UE能力消息来有效地从支持的RAT的列表中移除该RAT，这可能阻止UE发起到该RAT的网络发起的转换。 UE还可以从支持的RAT的内部列表中去除不可用的RAT，这可以防止UE发起到该RAT的转换。