公开(公告)号：US20240380808A1

公开(公告)日：2024-11-14

申请号：US18696430

申请日：2021-11-20

Applicant: QUALCOMM Incorporated

Inventor： Jian GAO ,  Bing LENG ,  Yong HOU ,  Sanjeev MITTAL ,  Yong XIE ,  Vikram SINGH

IPC: H04L65/80 ,  H04L65/75 ,  H04N19/115 ,  H04N19/164 ,  H04N19/184 ,  H04W28/02 ,  H04W28/04

Abstract: Wireless communications systems and methods related to video telephony are provided. A device may proactively reduce the bitrate at which video is encoded at the beginning of a video call based on one or more radio metrics. Radio metrics used may include received signal strength indicator (RSSI), received signal received quality (RSRQ), received signal received power (RSRP), signal to noise ratio (SNR), power headroom (PHR), and block error rate (BER). The proactive reduction in bitrate is done prior to transmitting or receiving video data. The device may also request that a second device which is transmitting video do so at a reduced bitrate.

公开(公告)号：US20220295543A1

公开(公告)日：2022-09-15

申请号：US17654363

申请日：2022-03-10

Applicant: QUALCOMM Incorporated

Inventor： Reza SHAHIDI ,  Qingxin CHEN ,  Lan LAN ,  Yong XIE ,  Carlos Marcelo Dias PAZOS ,  James BECKMAN ,  Cheol Hee PARK ,  Leena ZACHARIAS ,  Arnaud MEYLAN ,  Shanshan WANG

IPC: H04W74/00 ,  H04W8/20 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may initiate a first service associated with a first subscriber identity module (SIM) of the UE and a first priority. The UE may initiate a second service associated with a second SIM of the UE and a second priority. The UE may switch the first priority and the second priority during at least part of the first service or the second service. The UE may perform a communication in accordance with at least one of the first priority or the second priority. Numerous other aspects are described.

公开(公告)号：US20220248274A1

公开(公告)日：2022-08-04

申请号：US17457127

申请日：2021-12-01

Applicant: QUALCOMM Incorporated

Inventor： Vikram SINGH ,  Bhupesh Manoharlal UMATT ,  Carlos Marcelo Dias PAZOS ,  Cherng-Shung HSU ,  Qingxin CHEN ,  Yong XIE

IPC: H04W36/00 ,  H04W76/18 ,  H04W76/34

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, while the UE is in an active session using a first radio access technology (RAT) associated with a first subscription of the UE, a call request via the first RAT, wherein the call request is associated with a second subscription of the UE. The UE may determine that the call request is received from a serving cell that is associated with fallback from the first RAT to a second RAT for calls. The UE may reject the call request or transition the second subscription to a third RAT based at least in part on the determination that the call request is received via the serving cell that is associated with fallback from the first RAT to the second RAT for calls. Numerous other aspects are described.

公开(公告)号：US20210352551A1

公开(公告)日：2021-11-11

申请号：US16870686

申请日：2020-05-08

Applicant: QUALCOMM Incorporated

Inventor： Yong XIE ,  Arvind Vardarajan SANTHANAM ,  Carlos Marcelo Dias PAZOS ,  Vikram SINGH ,  Mouaffac AMBRISS ,  Sumit Kumar SINGH

IPC: H04W36/18 ,  H04W36/08 ,  H04W36/30 ,  H04B17/318 ,  H04W36/00

Abstract: A configuration is disclosed to enable a UE to preempt SRVCC by triggering a handover to a Wi-Fi network. The apparatus determines whether a Wi-Fi cell is viable as a first target cell, from a plurality of target cells, serving the UE to continue the active transmission on the Wi-Fi cell. The apparatus extends a TTT timer length based at least in part on the determination that the Wi-Fi cell is viable as the target cell serving the UE to continue the active transmission on the Wi-Fi cell. The apparatus initiates a handover to the Wi-Fi cell from the first network prior to the expiration of a TTT timer and prior to the first network initiating a handover to a second target cell, from the plurality of target cells, on a second network.

公开(公告)号：US20160014658A1

公开(公告)日：2016-01-14

申请号：US14759882

申请日：2013-05-21

Applicant: Huan XU ,  Xuepan GUAN ,  Tim Tynghuei LIOU ,  Shiau-He TSAI ,  Yong XIE ,  QUALCOMM INCORPORATED

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

IPC: H04W36/08 ,  H04W76/04 ,  H04W72/04

CPC classification number: H04W36/08 ,  H04W36/023 ,  H04W36/10 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/27

Abstract: A method and apparatus for avoiding call drops during Serving Radio Network Subsystem (SRNS) relocation procedure are described. In an aspect, the method may include receiving an SRNS RELOCATION message and initiating a handover procedure from a first radio network subsystem (RNS) to a second RNS based on the SRNS RELOCATION message. The method may include identifying a downlink (DL) message and identifying an uplink (UL) message. The method may include holding the DL message and the UL message at a radio resource control (RRC) layer until completion of the handover procedure. In another aspect, the SRNS RELOCATION message may include a new FRESH value. The method may include retaining an old FRESH value determined before the SRNS RELOCATION was received. The method may include applying both the old FRESH value and new FRESH value to the DL message to determine if the DL message is valid.

Abstract translation: 描述了在服务无线电网络子系统（SRNS）重定位过程期间避免呼叫丢弃的方法和装置。 一方面，该方法可以包括基于SRNS RELOCATION消息来接收SRNS RELOCATION消息并且从第一无线电网络子系统（RNS）发起到第二RNS的切换过程。 该方法可以包括识别下行链路（DL）消息和识别上行链路（UL）消息。 该方法可以包括将DL消息和UL消息保持在无线电资源控制（RRC）层，直到完成切换过程。 在另一方面，SRNS RELOCATION消息可以包括新的FRESH值。 该方法可以包括保留在接收到SRNS RELOCATION之前确定的旧FRESH值。 该方法可以包括将旧FRESH值和新FRESH值应用于DL消息以确定DL消息是否有效。

公开(公告)号：US20230354133A1

公开(公告)日：2023-11-02

申请号：US17661138

申请日：2022-04-28

Applicant: QUALCOMM Incorporated

Inventor： Xinning SHEN ,  Qin Xue FRANTTI ,  Osama LOTFALLAH ,  Yong XIE ,  Sony AKKARAKARAN ,  Arvind Vardarajan SANTHANAM ,  Reza SHAHIDI

IPC: H04W36/14 ,  H04W48/16

CPC classification number: H04W36/14 ,  H04W48/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect, while operating in an out-of-service (OOS) mode associated with a first network, that a second network satisfies one or more switching criteria. The UE may increase a time duration associated with a periodic network acquisition scan associated with the first network based at least in part on detecting that the second network satisfies the one or more switching criteria. The UE may switch, while operating in the OOS mode, from using the first network for connectivity to using the second network for connectivity based at least in part on detecting that the second network satisfies the one or more switching criteria. Numerous other aspects are described.

公开(公告)号：US20220417886A1

公开(公告)日：2022-12-29

申请号：US17808047

申请日：2022-06-21

Applicant: QUALCOMM Incorporated

Inventor： Reza SHAHIDI ,  Bhupesh Manoharlal UMATT ,  Vikram SINGH ,  Suli ZHAO ,  Carlos Marcelo Dias PAZOS ,  Yong XIE ,  Sankalp SRIVASTAVA ,  Ramananda Arkalgud SHELVANANDA

IPC: H04W60/00 ,  H04W48/18 ,  H04W4/60 ,  H04L65/1016 ,  H04W76/15

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may establish, via a first subscriber service, at least one protocol data unit (PDU) session. The UE may receive a first internet protocol (IP) address associated with the first subscriber service. The UE may register the first subscriber service with an IP multimedia subsystem (IMS) network using the first IP address. The UE may register a second subscriber service with the IMS network using a second IP address, wherein the second subscriber service uses the at least one PDU session of the first subscriber service. Numerous other aspects are described.

公开(公告)号：US20220286994A1

公开(公告)日：2022-09-08

申请号：US17653412

申请日：2022-03-03

Applicant: QUALCOMM Incorporated

Inventor： Vikram SINGH ,  Mutaz Zuhier Afif SHUKAIR ,  Yong XIE ,  Qingxin CHEN ,  Carlos Marcelo Dias PAZOS ,  Suli ZHAO ,  Can ZHAO ,  Rishav REJ ,  Bhupesh Manoharlal UMATT

IPC: H04W60/00 ,  H04W76/16 ,  H04W8/18 ,  H04W76/12 ,  H04W24/04

Abstract: In some aspects, a user equipment (UE) may communicate using a first radio access technology (RAT) for a first subscription of the UE, wherein the first RAT is selected from a group that includes a first cellular RAT associated with the first subscription, a second cellular RAT associated with a second subscription of the UE, and a wireless local area network (WLAN) RAT. The UE may communicate using a second RAT for the second subscription of the UE, wherein the second RAT is selected from the group that includes the first cellular RAT associated with the first subscription, the second cellular RAT associated with the second subscription of the UE, and the WLAN RAT. The UE may transition, based at least in part on a condition, a communication link carrying a protocol data unit (PDU) session from the second subscription to the first subscription. Numerous other aspects are described.

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：US20240284267A1

公开(公告)日：2024-08-22

申请号：US18651772

申请日：2024-05-01

Applicant: QUALCOMM Incorporated

Inventor： Vikram SINGH ,  Yong XIE ,  Carlos Marcelo Dias PAZOS

IPC: H04W36/00 ,  H04W36/30

CPC classification number: H04W36/0022 ,  H04W36/30

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, during an active call on a first radio access technology (RAT), a signal strength associated with the first RAT is within a particular range above a handover threshold. The UE may determine, based at least in part on a signal strength of a second RAT, that the active call would be moved from the second RAT to a third RAT after a handover from the first RAT to the second RAT, and, may trigger mobility from the second RAT to the third RAT based at least in part on the determination that the signal strength associated with the first RAT is within the particular range and the determination that the active call would be moved from the second RAT to the third RAT. Numerous other aspects are provided.