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：US20200178143A1

公开(公告)日：2020-06-04

申请号：US16781983

申请日：2020-02-04

Applicant: QUALCOMM Incorporated

Inventor： Ling XIE ,  Shiau-He TSAI ,  Jie MAO ,  Yan ZHANG ,  Huichun CHEN ,  Shanshan WANG ,  Song TIAN ,  Yong XIE

IPC: H04W36/30 ,  H04W48/20

Abstract: A user equipment (UE) expedites cell reselection by reselecting a neighbor cell prior to call setup. In one instance, the UE measures a signal quality of a serving cell and a signal quality of the neighbor cell. The UE starts a reselection timer for reselecting the neighbor cell based on the measured signal quality of the serving cell and the measured signal quality of the neighbor cell. The UE reselects the neighbor cell prior to a scheduled expiration of the reselection timer.

公开(公告)号：US20180288667A1

公开(公告)日：2018-10-04

申请号：US15762439

申请日：2015-12-29

Applicant: Ling XIE ,  Shiau-He TSAI ,  Jie MAO ,  Yan ZHANG ,  Huichun CHEN ,  Shanshan WANG ,  Song TIAN ,  Yong XIE ,  QUALCOMM INCORPORATED

Inventor： Ling XIE ,  Shiau-He TSAI ,  Jie MAO ,  Yan ZHANG ,  Huichun CHEN ,  Shanshan WANG ,  Song TIAN ,  Yong XIE

IPC: H04W36/30

Abstract: A user equipment (UE) expedites cell reselection. In one instance, the UE starts a reselection timer for reselecting to a neighbor cell when a signal quality of a serving cell is determined to fall below a first threshold. The UE then expedites reselecting to the neighbor cell based on a difference between the signal quality of the serving cell and the signal quality of the neighbor cell when the signal quality of the serving cell falls below a second threshold.

公开(公告)号：US20200329485A1

公开(公告)日：2020-10-15

申请号：US16843654

申请日：2020-04-08

Applicant: QUALCOMM Incorporated

Inventor： Shiau-He TSAI ,  Raghu Narayan CHALLA

IPC: H04W72/12 ,  H04W72/04 ,  H04L25/02 ,  H04L5/00 ,  H04B7/0413 ,  H04L1/00

Abstract: Certain aspects of the present disclosure provide a method for wireless communication by a base station (BS). The method generally includes receiving an indication of current remaining available transmit power from a user equipment (UE). The method further includes communicating information indicating a data rate parameter and a communication configuration to the UE. The data rate parameter is for use by the UE on an uplink with the BS. The communication configuration affects uplink transmission duty cycle on the uplink based on whether the current remaining available transmit power and a current channel state between the BS and the UE satisfy a condition. The method further includes receiving signals based on the data rate parameter and the communication configuration from the UE on the uplink.

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：US20150319666A1

公开(公告)日：2015-11-05

申请号：US14648216

申请日：2013-09-18

Applicant: QUALCOMM Incorporated

Inventor： Insung KANG ,  Jie MAO ,  Aamod Dinkar KHANDEKAR ,  Hari SANKAR ,  Qiang SHEN ,  Chao JIN ,  Song TIAN ,  Shiau-He TSAI ,  Qingxin CHEN ,  Huichun CHEN

IPC: H04W36/30 ,  H04W36/00 ,  H04W72/04 ,  H04W24/10

CPC classification number: H04W36/30 ,  H04W24/10 ,  H04W36/0005 ,  H04W72/0406 ,  H04W88/02 ,  H04W88/08

Abstract: Methods and apparatus for wireless communication for improving handover between a network and a user equipment (UE) when a measurement report is received. Aspects of the methods and apparatus relate to determining the quality of a serving cell associated with a fast handover performance threshold. When the fast handover performance threshold is breached, the UE may transmit a measurement report requesting a handover to a target cell. Upon requesting a handover to a target cell when the fast handover performance threshold is breached, the UE receives a handover trigger allowing handover to a target cell.

Abstract translation: 当接收到测量报告时，用于改善网络与用户设备（UE）之间的切换的无线通信方法和装置。 方法和装置的方面涉及确定与快速切换性能阈值相关联的服务小区的质量。 当违反快速切换性能阈值时，UE可以向目标小区发送请求切换的测量报告。 当违反快速切换性能阈值时请求切换到目标小区，UE接收允许切换到目标小区的切换触发。

公开(公告)号：US20140342757A1

公开(公告)日：2014-11-20

申请号：US14451164

申请日：2014-08-04

Applicant: QUALCOMM Incorporated

Inventor： Insung KANG ,  Qingxin CHEN ,  Shiau-He TSAI

IPC: H04W4/02 ,  H04L5/00 ,  H04W52/02

CPC classification number: H04W4/025 ,  H04L5/0044 ,  H04W8/26 ,  H04W48/14 ,  H04W52/0209

Abstract: Methods for improving the time to acquire an identity of a base station by a mobile station, by relying on locally-unique attributes of the base stations instead of globally-unique attributes of the base stations, are presented. In some embodiments, data may be requested, the data may contain a globally unique attribute of a base station, a first locally unique attribute of the base station, and a second locally unique attribute of the base station. In some embodiments, data may be received in response to the request, the data may contain at least the first locally unique attribute and the second locally unique attribute. It may then be determined that the data did not contain the globally unique attribute, and an identity of the base station based at least in part on the first locally unique attribute and the second locally unique attribute may be acquired.