公开(公告)号：US20220078617A1

公开(公告)日：2022-03-10

申请号：US17468331

申请日：2021-09-07

Applicant: QUALCOMM Incorporated

Inventor： Xuepan GUAN ,  Osama LOTFALLAH ,  Vitaly DRAPKIN ,  Cogol TINA ,  Swathi SESHADRI

IPC: H04W12/08 ,  H04W76/10 ,  H04L29/06

Abstract: Techniques and apparatus for optimizing an initial access stratum security mode command procedure are described. One example technique includes sending a first service request to establish a connection with a network. A second service request is sent to the network, upon determining that one or more criteria is satisfied. Another example technique includes sending a first service request to establish a connection with a network and sending a second service request after sending the first service request. The first service request is associated with a first security parameter and the second service request is associated with a second security parameter. A security mode command procedure is participated in with a base station, based on the first security parameter and the second security parameter.

公开(公告)号：US20240334264A1

公开(公告)日：2024-10-03

申请号：US18292182

申请日：2021-10-01

Applicant: QUALCOMM Incorporated

Inventor： Rishika TINDOLA ,  Muralidharan MURUGAN ,  Nitin PANT ,  Shyamal RAMACHANDRAN ,  Jun DENG ,  Hewu GU ,  Xuepan GUAN

IPC: H04W36/00 ,  H04W36/08 ,  H04W48/10

CPC classification number: H04W36/0069 ,  H04W36/08 ,  H04W48/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a multi-radio access technology (multi-RAT) dual connectivity (DC) (MR-DC) capable cell. The UE may assign a priority to the MR-DC capable cell based at least in part on whether information indicating whether dual connectivity is supported for the UE in a tracking area (TA) is available, the information indicating whether dual connectivity is supported for the UE in the TA, whether system information block (SIB) information indicating frequency bands supported by a network for MR-DC operation cell is available, or MR-DC connectivity information indicating whether at least one frequency band is available to support MR-DC operation. The UE may perform a cell selection procedure or a cell reselection procedure based at least in part on the priority assigned to the MR-DC capable cell. Numerous other aspects are described.

公开(公告)号：US20220312280A1

公开(公告)日：2022-09-29

申请号：US17597224

申请日：2020-07-28

Applicant: QUALCOMM Incorporated

Inventor： Ling XIE ,  Qingxin CHEN ,  Reza SHAHIDI ,  Jiming GUO ,  Xuqiang ZHANG ,  Kiran PATIL ,  Subashini KRISHNAMURTHY ,  Peng HU ,  Xuepan GUAN ,  Daowei LIN ,  Shaolin PENG ,  Vishwanath CHUKKALA ,  Pavan Kumar V. JIGAJINNI ,  Bhupesh Manoharlal UMATT ,  Rishika TINDOLA ,  Xiaochen CHEN ,  Tom CHIN ,  Xiaoyu LI

IPC: H04W36/00 ,  H04W8/18 ,  H04W68/00 ,  H04W36/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a first subscription of the UE and a second subscription of the UE are associated with a same cell and are being used for a same radio access technology (RAT). The UE may activate a proxy subscription mode for the first subscription based at least in part on the determination that the first subscription of the UE and the second subscription of the UE are associated with the same cell and are being used for the same RAT, wherein the proxy subscription mode enables the UE to use the first subscription to perform one or more idle mode operations for the second subscription while the second subscription is in an idle mode. Numerous other aspects are provided.

公开(公告)号：US20230328556A1

公开(公告)日：2023-10-12

申请号：US17658188

申请日：2022-04-06

Applicant: QUALCOMM Incorporated

Inventor： Kuo-Chun LEE ,  Arvind Vardarajan SANTHANAM ,  Brian Clarke BANISTER ,  Bhupesh Manoharlal UMATT ,  Xuepan GUAN ,  Jyotica YADAV ,  Ehren J D VAN MELLE ,  Gautham JAYARAM ,  Sumit Kumar SINGH ,  Touseef KHAN ,  Arjun SURI ,  Sushant VIKRAM ,  Longjun CHEN ,  Sasikanth Reddy ADAPALA

IPC: H04W24/08 ,  H04W16/18 ,  H04W48/08

CPC classification number: H04W24/08 ,  H04W16/18 ,  H04W48/08

Abstract: This disclosure provides systems, methods and apparatuses for measurement of cells and determination of a non-standalone (NSA) coverage status using an NSA coverage database. The NSA coverage database may indicate candidate frequencies of New Radio (NR) cells that provide NSA coverage corresponding to a given Long Term Evolution (LTE) serving cell. The NSA coverage database may also indicate whether a system information block 1 (SIB1) has been previously received on a candidate frequency. The user equipment (UE) may perform measurement of candidate frequencies using the NSA coverage database, and may identify cases where a cell not providing NSA coverage has a same candidate frequency as a cell providing NSA coverage using the indication of whether SIB1 has been previously received on a candidate frequency.

公开(公告)号：US20220248256A1

公开(公告)日：2022-08-04

申请号：US17454639

申请日：2021-11-12

Applicant: QUALCOMM Incorporated

Inventor： Kuo-Chun LEE ,  Brian Clarke BANISTER ,  Arvind Vardarajan SANTHANAM ,  Reza SHAHIDI ,  Bhupesh Manoharlal UMATT ,  Daniel AMERGA ,  Zhang ZHOU ,  Qin Xue FRANTTI ,  Xuepan GUAN ,  Tom CHIN

IPC: H04W28/02 ,  H04W28/08 ,  H04W72/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may establish, in a communication mode, a communication connection with a first radio access technology (RAT) or a second RAT. The UE may receive or identify an indication to deprioritize the first RAT. The UE may perform, based at least in part on the indication to deprioritize the first RAT, an action to deprioritize the first RAT, where the action is based at least in part in the communication mode. Numerous other aspects are described.

公开(公告)号：US20160234722A1

公开(公告)日：2016-08-11

申请号：US15022200

申请日：2013-10-25

Applicant: QUALCOMM INCORPORATED

Inventor： Huan XU ,  Tim Tynghuei LIOU ,  Xuepan GUAN

IPC: H04W36/00

CPC classification number: H04W36/0011 ,  H04W36/0055 ,  H04W36/12

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The method comprises: receiving a message at a user equipment (UE) from a source base station connected to a first radio network controller to relocate to a target base station connected to a second network controller different from the first network controller; detecting an unrecoverable Radio Link Control (RLC) error at the UE; and ignoring the RLC unrecoverable error when it occurs after receiving the message to relocate while the UE is still connected to the source base station, before relocation is completed, and proceeding to relocate to the target base station. Various alterations and embodiments are disclosed.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该方法包括：从连接到第一无线电网络控制器的源基站在用户设备（UE）处接收消息，以重定位到连接到不同于第一网络控制器的第二网络控制器的目标基站; 检测UE处的不可恢复的无线链路控制（RLC）错误; 并且在重新定位完成之前，在UE仍然连接到源基站并且继续重定位到目标基站之后，在接收到重新定位的消息之后发生RLC不可恢复的错误。 公开了各种改变和实施例。

公开(公告)号：US20210168615A1

公开(公告)日：2021-06-03

申请号：US16699075

申请日：2019-11-28

Applicant: QUALCOMM Incorporated

Inventor： Xuepan GUAN ,  Subrato Kumar DE ,  Nitin PANT ,  Mattias Kaulard HUBER ,  Krishna Ram BUDHATHOKI ,  Ankur BHATTACHARJEE

IPC: H04W12/12 ,  H04W12/00 ,  H04W12/06 ,  H04W60/00 ,  H04W8/26

Abstract: Various embodiments include methods, components and wireless devices configured to identify illegitimate base station. The processor of the wireless device may determine that a device in communication with the wireless device is a suspect base station. The processor may send a fabricated message to the device, and may receive one or more response messages from the device. The processor may determine whether one or more of the response messages received from the device is an appropriate response or an inappropriate response to the fabricated message. In response to determining that a response message is an inappropriate response, the processor may determine that the device is an illegitimate base station. In response to determining that the device is an illegitimate base station, the wireless device may perform a protective action.

公开(公告)号：US20170078177A1

公开(公告)日：2017-03-16

申请号：US15122748

申请日：2014-06-30

Applicant: QUALCOMM Incorporated

Inventor： Huan XU ,  Xiaojian LONG ,  Tim Tynghuei LIOU ,  Yong XIE ,  Xuepan GUAN ,  Jie MAO ,  Shiau-He TSAI

IPC: H04L12/26 ,  H04W24/08 ,  H04W24/02

CPC classification number: H04L43/0852 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/16 ,  H04W24/02 ,  H04W24/08 ,  H04W80/02

Abstract: A method and apparatus for reducing call drop rate by validating reconfiguration messages based on service data unit (SDU) lifetime are described. A receiving device, such as a user equipment, may determine a receiving delay between receiving a first protocol data unit (PDU) and receiving a last PDU of a reconfiguration message SDU. The receiving delay may be compared with an SDU lifetime. The reconfiguration message SDU may be validated based on the comparison of the receiving delay with the SDU lifetime. A receiving delay that is greater than the SDU lifetime may indicate that the SDU is stale and, therefore, invalid. A receiving delay that is less than the SDU lifetime may indicate that the timing of the SDU is valid and the reconfiguration message SDU is to be processed. An activation time of the reconfiguration message SDU may also be honored or disregarded based on the receiving delay.

Abstract translation: 描述了通过基于服务数据单元（SDU）寿命验证重新配置消息来减少呼叫丢弃率的方法和装置。 诸如用户设备的接收设备可以确定在接收第一协议数据单元（PDU）和接收重新配置消息SDU的最后PDU之间的接收延迟。 可以将接收延迟与SDU寿命进行比较。 可以基于接收延迟与SDU寿命的比较来验证重新配置消息SDU。 大于SDU寿命的接收延迟可能表示SDU过时，因此无效。 小于SDU寿命的接收延迟可以指示SDU的定时有效并且重新配置消息SDU将被处理。 基于接收延迟，重新配置消息SDU的激活时间也可以被兑现或忽略。

公开(公告)号：US20160135114A1

公开(公告)日：2016-05-12

申请号：US14705611

申请日：2015-05-06

Applicant: QUALCOMM Incorporated

Inventor： Liangchi HSU ,  Thawatt GOPAL ,  Huan XU ,  Ansah Ahmed SHEIK ,  Satish Pavan Kumar NICHANAMETLA ,  Vagish GUPTA ,  Sathish KRISHNAMOORTHY ,  Sitaramanjaneyulu KANAMARLAPUDI ,  Qingxin CHEN ,  Xuepan GUAN ,  Xiaojian LONG

IPC: H04W48/06 ,  H04W24/08

CPC classification number: H04W48/06 ,  H04W24/08 ,  H04W60/005 ,  H04W76/16 ,  H04W76/18 ,  H04W76/20

Abstract: Aspects described herein relate to throttling packet-switched (PS) call establishment in wireless communications. A circuit-switched (CS) call can be conducted by using a first radio access technology (RAT). A cell update (CU) procedure for a PS call using a second RAT can be detected as due to one or more conditions. A cause for the one or more conditions can be determined based on one or more parameters related to a transmitter or receiver. PS call establishment attempts can accordingly be throttled based at least in part on determining the cause for the one or more conditions

Abstract translation: 本文描述的方面涉及在无线通信中限制分组交换（PS）呼叫建立。 可以通过使用第一无线接入技术（RAT）来进行电路交换（CS）呼叫。 由于一个或多个条件，可以检测使用第二RAT的PS呼叫的小区更新（CU）过程。 可以基于与发射机或接收机相关的一个或多个参数来确定一个或多个条件的原因。 至少部分地基于确定一个或多个条件的原因，可以相应地调节PS呼叫建立尝试

公开(公告)号：US20240015603A1

公开(公告)日：2024-01-11

申请号：US18260541

申请日：2021-03-24

Applicant: QUALCOMM Incorporated

Inventor： Kuo-Chun LEE ,  Arvind Vardarajan SANTHANAM ,  Shanshan WANG ,  Hewu GU ,  Xianwei ZHU ,  Jun DENG ,  Xuepan GUAN

IPC: H04W36/00 ,  H04W36/08

CPC classification number: H04W36/0022 ,  H04W36/08

Abstract: Got Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may switch between a first radio access technology (RAT) and a second RAT based at least in part on a condition. The UE may modify, based at least in part on the switching, a second RAT threshold value in a system information block (SIB), to obtain a modified second RAT threshold value, wherein the modified second RAT threshold value is a value to switch from the first RAT to the second RAT. Numerous other aspects are described.