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：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：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。