公开(公告)号：WO2012125967A1

公开(公告)日：2012-09-20

申请号：PCT/US2012/029527

申请日：2012-03-16

Applicant: QUALCOMM Incorporated ,  RAMACHANDRAN, Shyamal ,  KLINGENBRUNN, Thomas

Inventor： RAMACHANDRAN, Shyamal ,  KLINGENBRUNN, Thomas

IPC: H04W76/02

CPC classification number: H04W76/027 ,  H04W36/02 ,  H04W76/18 ,  H04W76/25 ,  H04W88/06

Abstract: A method is provided for facilitating preservation of session context information during an inter-radio access technology service retry. A user equipment (UE) may initiate a data transmission for a first service over a wireless communication session with a first network. Upon ascertaining that the first service has failed over the first network, a failover procedure is initiated by sending a service request for a second service to the first network. The second service may be distinct from the first service and has the effect of suspending the wireless communication session with the first network. The UE then resends the data transmission for the first service over a second network. The UE then resumes use of the wireless communication session over the first network after resending the data transmission over the second network. This resumption is done by using context information for the wireless communication session preserved prior to the suspension.

Abstract translation: 提供了一种在无线电接入技术服务重试期间便于保持会话上下文信息的方法。 用户设备（UE）可以通过与第一网络的无线通信会话来发起第一服务的数据传输。 在确定第一服务在第一网络上发生故障之后，通过向第一网络发送用于第二服务的服务请求来启动故障切换过程。 第二服务可以不同于第一服务，并且具有暂停与第一网络的无线通信会话的效果。 然后，UE通过第二网络重新发送用于第一服务的数据传输。 然后，在重新发送通过第二网络的数据传输之后，UE在第一网络上恢复使用无线通信会话。 该恢复通过使用在暂停之前保存的无线通信会话的上下文信息来完成。

公开(公告)号：WO2012078976A1

公开(公告)日：2012-06-14

申请号：PCT/US2011/064137

申请日：2011-12-09

Applicant: QUALCOMM INCORPORATED ,  CHHATRIWALA, Murtuza, T. ,  ERAVELLI, Srinivasa, R. ,  CAI, Hailiang ,  GOVINDAPPA, Sumanth ,  ZHANG, Liang ,  PALAKODETY, Sivaram, S.

Inventor： CHHATRIWALA, Murtuza, T. ,  ERAVELLI, Srinivasa, R. ,  CAI, Hailiang ,  GOVINDAPPA, Sumanth ,  ZHANG, Liang ,  PALAKODETY, Sivaram, S.

IPC: H04L1/18 ,  H04W28/06 ,  H04W80/02

CPC classification number: H04W28/065 ,  H04L1/1841 ,  H04L2001/0092 ,  H04W36/02 ,  H04W36/06 ,  H04W80/02

Abstract: A method, apparatus, and computer program product can provide for procedures at an access terminal (510) for handling the delivery of packets from the MAC entity (800) to the RLC entity (312), with an aim to reduce the occurrence of RLC resets that might otherwise be caused by out-of-order processing of control packets following a serving cell change. In one example, a MAC entity (800) may insert an identifier into a packet delivered up to the RLC entity (312), to indicate whether the packet arrived from the current primary serving cell. In another example, a serving cell change procedure may include steps to flush a queue at the MAC entity (800) and kill any running reordering release timers (616). In these ways potential problems caused by out-of-order control packets can be reduced or avoided.

Abstract translation: 方法，装置和计算机程序产品可以提供在接入终端（510）处理从MAC实体（800）到RLC实体（312）的分组传送的过程，目的是减少RLC的发生 可能由于服务小区更改后控制数据包的无序处理而导致的复位。 在一个示例中，MAC实体（800）可以将标识符插入到传送到RLC实体（312）的分组中，以指示分组是否从当前主服务小区到达。 在另一示例中，服务小区改变过程可以包括在MAC实体（800）处刷新队列并杀死任何正在运行的重新排序释放定时器（616）的步骤。 在这些方面，可以减少或避免由无序控制分组引起的潜在问题。

公开(公告)号：WO2012023886A1

公开(公告)日：2012-02-23

申请号：PCT/SE2010/050890

申请日：2010-08-17

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  SCHLIWA-BERTLING, Paul ,  EKMAN, Per-Ove

Inventor： SCHLIWA-BERTLING, Paul ,  EKMAN, Per-Ove

IPC: H04W36/00 ,  H04L29/06 ,  H04W92/04

CPC classification number: H04W36/0011 ,  H04L29/12311 ,  H04L47/122 ,  H04L47/14 ,  H04L61/2084 ,  H04L65/1026 ,  H04L65/1036 ,  H04L65/608 ,  H04W36/02 ,  H04W92/045

Abstract: A first node (110, 115, 135, 200) for an IP connection with a second node over an A interface between a Access Network (101) and a Circuit Switched Core Network (122), said IP connection comprising an RTP and an RTCP connection. The first node has an RTP address comprising an IP address and a UDP port in the RTP connection and can change its RTP address and signal said change by a message to the second node (200, 135, 110, 115) over the RTCP connection and receive an ACK message. The first node is arranged to, following said change of RTP address, receive user plane data over the RTP connection from the second node at its changed and unchanged RTP address and to initiate an Internal handover with Mobile Switching Centre support if said ACK message from the second node is not received within a time limit.

Abstract translation: 用于通过接入网络（101）和电路交换核心网络（122）之间的A接口与第二节点进行IP连接的第一节点（110,115,135,200），所述IP连接包括RTP和RTCP 连接。 第一节点具有包括RTP连接中的IP地址和UDP端口的RTP地址，并且可以通过RTCP连接改变其RTP地址并将所述消息通过消息发送到第二节点（200,135,110,115），并且 接收ACK消息。 第一节点被布置为，在所述RTP地址的改变之后，通过RTP连接从其改变和不变的RTP地址的第二节点接收用户平面数据，并且如果来自所述RTP地址的所述ACK消息，则启动具有移动交换中心支持的内部切换 第二个节点在一段时间内没有收到。

公开(公告)号：WO2011133934A1

公开(公告)日：2011-10-27

申请号：PCT/US2011/033670

申请日：2011-04-22

Applicant: QUALCOMM Incorporated ,  MAHESHWARI, Shailesh

Inventor： MAHESHWARI, Shailesh

IPC: H04W12/04 ,  H04L29/06

CPC classification number: H04L63/068 ,  H04W12/04 ,  H04W36/02

Abstract: A counter synchronization process is described that is event driven rather than conducted on a periodic basis. A receiving device, which may be a user equipment (UE) or a base station, monitors received data packets to detect a rollover of a packet data sequence number in successive data packets. When the sequence number rollover is detected, the receiving device increments the variable data portion of the deciphering key stored in memory. Also in response to this detected rollover event, the receiving device transmits a synchronization message to the source device.

Abstract translation: 描述了事件驱动而不是周期性地进行的计数器同步过程。 可以是用户设备（UE）或基站的接收设备监视接收到的数据分组以检测连续数据分组中分组数据序列号的翻转。 当检测到序列号翻转时，接收装置增加存储在存储器中的解密密钥的可变数据部分。 响应于该检测到的翻转事件，接收设备也向源设备发送同步消息。

公开(公告)号：WO2011085043A3

公开(公告)日：2011-09-29

申请号：PCT/US2011020275

申请日：2011-01-05

Applicant: QUALCOMM INC ,  LEE KUO-CHUN ,  BALASUBRAMANIAN SRINIVASAN ,  WANG JUN ,  CHERIAN GEORGE

Inventor： LEE KUO-CHUN ,  BALASUBRAMANIAN SRINIVASAN ,  WANG JUN ,  CHERIAN GEORGE

IPC: H04W36/00

CPC classification number: H04W36/02 ,  H04W36/0011

Abstract: Methods and apparatuses are provided that pausing transmission control protocol (TCP) transmissions during or following handover to prevent unwarranted duplicated acknowledgement transmission, which can cause decrease in TCP window size. During handover, transmission on-hold commands can be sent to a TCP layer that indicate to prepare to pause TCP transmissions, immediately pause TCP transmissions, and/or the like (1004). Transmission resume commands can be sent to the TCP layer following handover. In addition, TCP transmissions can be paused following handover to allow data forwarding data to be provisioned to a device from a target base station without duplicated acknowledgement transmission (1304).

Abstract translation: 提供了在切换期间或之后暂停传输控制协议（TCP）传输以防止不合理的重复确认传输的方法和装置，这可能导致TCP窗口大小的降低。 在切换期间，传输保持命令可以被发送到指示准备暂停TCP传输，立即暂停TCP传输等的TCP层（1004）。 传输恢复命令可以在切换后发送到TCP层。 此外，可以在切换之后暂停TCP传输，以允许将数据转发数据从目标基站提供给设备而无需重复的确认传输（1304）。

公开(公告)号：WO2011091861A1

公开(公告)日：2011-08-04

申请号：PCT/EP2010/051200

申请日：2010-02-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ) ,  WESTBERG, Lars ,  DAMOLA, Ayodele ,  HELLKVIST, Stefan

Inventor： WESTBERG, Lars ,  DAMOLA, Ayodele ,  HELLKVIST, Stefan

IPC: H04L29/08 ,  H04L29/06 ,  H04W36/00 ,  H04W8/18

CPC classification number: H04W36/0011 ,  H04L65/1016 ,  H04L65/104 ,  H04L65/1069 ,  H04L65/4076 ,  H04W36/02

Abstract: There is described a method and apparatus for handing over a terminal connection from a source base station to a target base station in a packet data network when the source base station is acting as a caching server and sending content data towards the terminal. A handover request is sent from the source base station to the target base station. A first control message is also sent from the source base station to a control server, the first control message including a session identifier for identifying the session, and current parameters for the session. If the target base station is associated with a cache storage unit containing the content data, a second control message is sent from the control server to the target base station, the second control message including a content identifier, the session identifier and the current parameters. At the target base station, the content data packets are retrieved from the cache storage unit, and a header of each retrieved content data packet is populated with parameters calculated using the received current parameters and session identifier. The content data packets are then sent from the base station towards the terminal.

Abstract translation: 描述了当源基站充当高速缓存服务器并向终端发送内容数据时，在分组数据网络中将终端连接从源基站切换到目标基站的方法和装置。 切换请求从源基站发送到目标基站。 第一控制消息也从源基站发送到控制服务器，第一控制消息包括用于识别会话的会话标识符和会话的当前参数。 如果目标基站与包含内容数据的高速缓存存储单元相关联，则从控制服务器向目标基站发送第二控制消息，第二控制消息包括内容标识符，会话标识符和当前参数。 在目标基站，从高速缓存存储单元检索内容数据分组，并且使用所接收的当前参数和会话标识符计算的参数填充每个检索到的内容数据分组的报头。 然后，内容数据包从基站发送到终端。

公开(公告)号：WO2011070308A1

公开(公告)日：2011-06-16

申请号：PCT/GB2009/002868

申请日：2009-12-10

Applicant: FUJITSU LIMITED ,  BUCKNELL, Paul ,  LI, Zhaojun ,  WILSON, Mick

Inventor： BUCKNELL, Paul ,  LI, Zhaojun ,  WILSON, Mick

IPC: H04W36/02

CPC classification number: H04W36/02

Abstract: A method is provided in handover of a user equipment in a communications system from communicating with a donor node via a relay node, to communicating with a target node, the donor node being operable to transmit downlink data to the relay node in a series of donor packets, the donor packets being sequentially marked, the relay node being operable to then transmit the downlink data to the user equipment in a series of relay packets, the relay packets also being sequentially marked. The method comprises receiving a handover request at the donor node and, upon receipt, beginning buffering of the donor packets in a temporary buffer at the donor node, transmitting a status message from the relay node to the donor node indicating a first of the relay packets not considered to have been received by the user equipment, transmitting an update message from the donor node to the relay node indicating the first donor packet buffered in the temporary buffer.

Abstract translation: 在通信系统中的用户设备的切换中，提供了一种在通信系统中的用户设备从经由中继节点与施主节点通信到与目标节点通信的方法，所述施主节点可操作以在一系列供体中向中继节点发送下行链路数据 分组，供应商分组被顺序地标记，中继节点可操作以随后在一系列中继分组中将下行链路数据发送给用户设备，中继分组也被顺序地标记。 该方法包括在施主节点处接收切换请求，并且在接收到在施主节点处的临时缓冲器中开始缓存施主分组时，从中继节点向施主节点发送指示第一中继分组的状态消息 不被认为已经被用户设备接收，从施主节点向中继节点发送指示缓冲在临时缓冲器中的第一施主分组的更新消息。

公开(公告)号：WO2011059284A2

公开(公告)日：2011-05-19

申请号：PCT/KR2010/008053

申请日：2010-11-15

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  WI, Mi-ae ,  KIM, Kyung-jin ,  KIM, Bong-joo ,  OH, Jun-hwan ,  KIM, Gyou-hwan

Inventor： WI, Mi-ae ,  KIM, Kyung-jin ,  KIM, Bong-joo ,  OH, Jun-hwan ,  KIM, Gyou-hwan

CPC classification number: H04W36/0077 ,  H04W36/02

Abstract: A method of performing an uncontrolled handover data integrity of a target Base Station(BS), includes: receiving an initial access request message from a Mobile Station(MS) by the target BS; performing a negotiation for establishing a handover data integrity path with a serving BS through a serving Access Service Network-Gateway (ASN-GW) by the target BS; and generating a main data path and a first handover data integrity path with the serving ASN-GW according to a result of the negotiation by the target BS.

Abstract translation: 执行目标基站（BS）的不受控制的切换数据完整性的方法包括：由目标BS从移动站（MS）接收初始接入请求消息; 通过目标BS通过服务接入服务网络网关（ASN-GW）执行与服务BS建立切换数据完整性路径的协商; 以及根据目标BS协商的结果，与服务ASN-GW生成主数据路径和第一越区切换数据完整性路径。

公开(公告)号：WO2010139088A1

公开(公告)日：2010-12-09

申请号：PCT/CN2009/000611

申请日：2009-06-01

Applicant: 上海贝尔股份有限公司 ,  阿尔卡特朗讯 ,  晁华

Inventor： 晁华

IPC: H04W36/00

CPC classification number: H04W36/02

公开(公告)号：WO2010105411A1

公开(公告)日：2010-09-23

申请号：PCT/CN2009/070844

申请日：2009-03-17

Applicant: 华为技术有限公司 ,  王燕 ,  蔺波 ,  刘宇红

Inventor： 王燕 ,  蔺波 ,  刘宇红

IPC: H04W36/02

CPC classification number: H04W36/18 ,  H04W36/02 ,  H04W52/54