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    METHOD AND APPARATUS FOR INTER-SYSTEM HANDOVER
    1.
    发明申请
    METHOD AND APPARATUS FOR INTER-SYSTEM HANDOVER 审中-公开
    用于系统间切换的方法和装置

    公开(公告)号：US20090023448A1

    公开(公告)日：2009-01-22

    申请号：US12033689

    申请日：2008-02-19

    申请人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Casaccia ,  Nathan Edward Tenny ,  Oronzo Flore

    发明人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Casaccia ,  Nathan Edward Tenny ,  Oronzo Flore

    IPC分类号： H04W36/00

    CPC分类号： H04W36/0061 ,  H04W36/38

    摘要： An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover. In addition, handover requests can be bundled with other-system measurement information, if necessary, for additional efficiencies.

    摘要翻译： 用于无线通信系统的系统间切换系统支持用户设备（UE）向包括同步和异步系统的不同无线电接入技术的切换和交换。 当UE接收（RX）能力在目标的接收范围内部或外部时，接入节点（节点B）广播关于相邻系统（目标）的信息的延迟和切换连接故障被减少。 单个RX链是足够的，尽管在无线广域网（WWAN）到无线局域网（WLAN）之间的转换可以有利地受益于在两个Rx链上的同时操作。 相邻RAT系统（目标）的优化列表从网络广播，包括测量参数和报告指令。 因此，UE驱动的报告使延迟最小化。 只有在切换需要时，UE才会将其他系统搜索报告给网络。 此外，如果需要，可以将切换请求与其他系统的测量信息捆绑在一起以用于附加的效率。

    Method and apparatus for inter-system handover
    2.
    发明授权
    Method and apparatus for inter-system handover 有权
    系统间切换的方法和装置

    公开(公告)号：US08208925B2

    公开(公告)日：2012-06-26

    申请号：US13100802

    申请日：2011-05-04

    申请人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Casaccia ,  Nathan Edward Tenny ,  Oronzo Flore

    发明人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Casaccia ,  Nathan Edward Tenny ,  Oronzo Flore

    IPC分类号： H04W36/00

    CPC分类号： H04W36/0061 ,  H04W36/38

    摘要： An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover. In addition, handover requests can be bundled with other-system measurement information, if necessary, for additional efficiencies.

    摘要翻译： 用于无线通信系统的系统间切换系统支持用户设备（UE）向包括同步和异步系统的不同无线电接入技术的切换和交换。 当UE接收（RX）能力在目标的接收范围内部或外部时，接入节点（节点B）广播关于相邻系统（目标）的信息的延迟和切换连接故障被减少。 单个RX链是足够的，尽管在无线广域网（WWAN）到无线局域网（WLAN）之间的转换可以有利地受益于在两个Rx链上的同时操作。 相邻RAT系统（目标）的优化列表从网络广播，包括测量参数和报告指令。 因此，UE驱动的报告使延迟最小化。 只有在切换需要时，UE才会将其他系统搜索报告给网络。 此外，如果需要，可以将切换请求与其他系统的测量信息捆绑在一起以用于附加的效率。

    METHOD AND APPARATUS FOR INTER-SYSTEM HANDOVER
    3.
    发明申请
    METHOD AND APPARATUS FOR INTER-SYSTEM HANDOVER 有权
    用于系统间切换的方法和装置

    公开(公告)号：US20110206009A1

    公开(公告)日：2011-08-25

    申请号：US13100802

    申请日：2011-05-04

    申请人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Cascaccia ,  Nathan Edward Tenny ,  Oronzo Flore

    发明人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Cascaccia ,  Nathan Edward Tenny ,  Oronzo Flore

    IPC分类号： H04W36/00

    CPC分类号： H04W36/0061 ,  H04W36/38

    摘要： An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover. In addition, handover requests can be bundled with other-system measurement information, if necessary, for additional efficiencies.

    摘要翻译： 用于无线通信系统的系统间切换系统支持用户设备（UE）向包括同步和异步系统的不同无线电接入技术的切换和交换。 当UE接收（RX）能力在目标的接收范围内部或外部时，接入节点（节点B）广播关于相邻系统（目标）的信息的延迟和切换连接故障被减少。 单个RX链是足够的，尽管在无线广域网（WWAN）到无线局域网（WLAN）之间的转换可以有利地受益于在两个Rx链上的同时操作。 相邻RAT系统（目标）的优化列表从网络广播，包括测量参数和报告指令。 因此，UE驱动的报告使延迟最小化。 只有在切换需要时，UE才会将其他系统搜索报告给网络。 此外，如果需要，可以将切换请求与其他系统的测量信息捆绑在一起以用于附加的效率。

    KEY IDENTIFIER IN PACKET DATA CONVERGENCE PROTOCOL HEADER
    4.
    发明申请
    KEY IDENTIFIER IN PACKET DATA CONVERGENCE PROTOCOL HEADER 失效
    分组数据汇总协议头的主要标识符

    公开(公告)号：US20090041247A1

    公开(公告)日：2009-02-12

    申请号：US12186430

    申请日：2008-08-05

    申请人： Peter Anthony Barany ,  Arnaud Meylan ,  Sai Yiu Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Rashid Ahmed Akbar Attar

    发明人： Peter Anthony Barany ,  Arnaud Meylan ,  Sai Yiu Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Rashid Ahmed Akbar Attar

    IPC分类号： H04K1/00

    CPC分类号： H04L63/06 ,  H04W12/04 ,  H04W12/10

    摘要： Systems and methodologies are described that facilitate identifying a plurality of keysets utilized in a communications network. The keysets can include ciphering keys that provide data encryption and decryption and integrity keys that provide data integrity protection. A key identifier can be included in a packet data convergence protocol header that indicates a keyset employed in connection with data in a protocol data unit. In addition, a route indicator can be provided in a radio link control header that distinguishes a source cell and a target cell in networks configured without RLC reset.

    摘要翻译： 描述了便于识别在通信网络中使用的多个键组的系统和方法。 密钥组可以包括提供数据加密和解密的加密密钥以及提供数据完整性保护的完整性密钥。 密钥标识符可以被包括在指示与协议数据单元中的数据相关联地使用的密钥集的分组数据会聚协议报头中。 此外，可以在无RLC链路控制头中提供路由指示符，该无线链路控制头在区分不配置RLC复位的网络中的源小区和目标小区。

    Key identifier in packet data convergence protocol header
    5.
    发明授权
    Key identifier in packet data convergence protocol header 失效
    分组数据汇聚协议头中的密钥标识符

    公开(公告)号：US08320561B2

    公开(公告)日：2012-11-27

    申请号：US12186430

    申请日：2008-08-05

    申请人： Peter Anthony Barany ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Rashid Ahmed Akbar Attar

    发明人： Peter Anthony Barany ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Rashid Ahmed Akbar Attar

    IPC分类号： H04L9/00

    CPC分类号： H04L63/06 ,  H04W12/04 ,  H04W12/10

    摘要： Systems and methodologies are described that facilitate identifying a plurality of keysets utilized in a communications network. The keysets can include ciphering keys that provide data encryption and decryption and integrity keys that provide data integrity protection. A key identifier can be included in a packet data convergence protocol header that indicates a keyset employed in connection with data in a protocol data unit. In addition, a route indicator can be provided in a radio link control header that distinguishes a source cell and a target cell in networks configured without RLC reset.

    摘要翻译： 描述了便于识别在通信网络中使用的多个键组的系统和方法。 密钥组可以包括提供数据加密和解密的加密密钥以及提供数据完整性保护的完整性密钥。 密钥标识符可以被包括在指示与协议数据单元中的数据相关联地使用的密钥集的分组数据会聚协议报头中。 此外，可以在无RLC链路控制头中提供路由指示符，该无线链路控制头在区分不配置RLC复位的网络中的源小区和目标小区。

    Layer 2 tunneling of data during handover in a wireless communication system
    7.
    发明授权
    Layer 2 tunneling of data during handover in a wireless communication system 失效
    在无线通信系统中的切换期间的数据的二层隧道化

    公开(公告)号：US08437306B2

    公开(公告)日：2013-05-07

    申请号：US12187539

    申请日：2008-08-07

    申请人： Rashid Ahmed Akbar Attar ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Peter Anthony Barany

    发明人： Rashid Ahmed Akbar Attar ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Peter Anthony Barany

    IPC分类号： H04W4/00

    CPC分类号： H04W36/02 ,  H04L47/10 ,  H04L47/14 ,  H04L47/34 ,  H04W36/08 ,  H04W92/20

    摘要： Techniques for sending data during handover with Layer 2 tunneling are described. In one design, a user equipment (UE) sends first Layer 2 packets to a source base station prior to handover to a target base station. The UE sends at least one second Layer 2 packet to the target base station, which identifies the second Layer 2 packet(s) as being intended for the source base station and thus forwards the second Layer 2 packet(s) to the source base station via a Layer 2 tunnel. The UE sends third Layer 2 packets to the target base station after the handover. The target base station processes the third Layer 2 packets to obtain IP packets and sends the IP packets to a serving gateway after a trigger condition, which may be defined to achieve in-order delivery of IP packets from the source and target base stations to the serving gateway.

    摘要翻译： 描述用于在第二层隧道切换期间发送数据的技术。 在一种设计中，用户设备（UE）在切换到目标基站之前将第一层2分组发送到源基站。 UE向目标基站发送至少一个第二层2分组，目标基站将第二层分组标识为源基站，从而将第二层分组转发到源基站 通过二层隧道。 移交后，UE向目标基站发送第三层报文。 目标基站处理第三层数据包以获得IP数据包，并在触发条件之后将IP数据包发送到服务网关，触发条件可以被定义为实现从源和目标基站到IP地址的IP分组的按顺序传送 服务网关。

    LAYER 2 TUNNELING OF DATA DURING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM
    8.
    发明申请
    LAYER 2 TUNNELING OF DATA DURING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM 失效
    无线通信系统中切换数据的层2隧道

    公开(公告)号：US20090124259A1

    公开(公告)日：2009-05-14

    申请号：US12187539

    申请日：2008-08-07

    申请人： Rashid Ahmed Akbar Attar ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Peter Anthony Barany

    发明人： Rashid Ahmed Akbar Attar ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Peter Anthony Barany

    IPC分类号： H04W36/00

    CPC分类号： H04W36/02 ,  H04L47/10 ,  H04L47/14 ,  H04L47/34 ,  H04W36/08 ,  H04W92/20

    摘要： Techniques for sending data during handover with Layer 2 tunneling are described. In one design, a user equipment (UE) sends first Layer 2 packets to a source base station prior to handover to a target base station. The UE sends at least one second Layer 2 packet to the target base station, which identifies the second Layer 2 packet(s) as being intended for the source base station and thus forwards the second Layer 2 packet(s) to the source base station via a Layer 2 tunnel. The UE sends third Layer 2 packets to the target base station after the handover. The target base station processes the third Layer 2 packets to obtain IP packets and sends the IP packets to a serving gateway after a trigger condition, which may be defined to achieve in-order delivery of IP packets from the source and target base stations to the serving gateway.

    摘要翻译： 描述了在切换第二层隧道期间发送数据的技术。 在一种设计中，用户设备（UE）在切换到目标基站之前将第一层2分组发送到源基站。 UE向目标基站发送至少一个第二层2分组，目标基站将第二层分组标识为源基站，从而将第二层分组转发到源基站 通过二层隧道。 移交后，UE向目标基站发送第三层报文。 目标基站处理第三层数据包以获得IP数据包，并在触发条件之后将IP数据包发送到服务网关，触发条件可以被定义为实现从源和目标基站到IP地址的IP分组的按顺序传送 服务网关。

    Method and apparatus for packet communications in wireless systems
    10.
    发明授权
    Method and apparatus for packet communications in wireless systems 有权
    无线系统中分组通信的方法和装置

    公开(公告)号：US08098635B2

    公开(公告)日：2012-01-17

    申请号：US12903136

    申请日：2010-10-12

    申请人： Juan Montojo ,  Durga Prasad Malladi ,  Nathan Edward Tenny ,  Francesco Grilli ,  Aziz Gholmieh

    发明人： Juan Montojo ,  Durga Prasad Malladi ,  Nathan Edward Tenny ,  Francesco Grilli ,  Aziz Gholmieh

    IPC分类号： H04B7/216

    CPC分类号： H04W52/0216 ,  H04W72/1205 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25

    摘要： Techniques for transmitting and receiving data in an efficient manner to potentially improve capacity for a wireless network and achieve power savings for a wireless device are described. The techniques utilize a Continuous Packet Connectivity (CPC) mode comprised of multiple (e.g., two) discontinuous transmission (DTX) modes and at least one (e.g., one) discontinuous reception (DRX) mode. Each DTX mode is associated with different enabled uplink subframes usable for transmission from the wireless device to the network. Each DRX mode is associated with different enabled downlink subframes usable by the network for transmission to the wireless device. The wireless device may send signaling and/or data on the enabled uplink subframes and may receive signaling and/or data on the enabled downlink subframes. The wireless device may power down during non-enabled subframes to conserve battery power. Mechanisms to quickly transition between the DTX and DRX modes are described.

    摘要翻译： 描述了以有效的方式发送和接收数据以潜在地提高无线网络的容量并实现无线设备的功率节省的技术。 该技术利用由多个（例如两个）不连续传输（DTX）模式和至少一个（例如一个）不连续接收（DRX）模式组成的连续分组连接（CPC）模式。 每个DTX模式与可用于从无线设备传输到网络的不同启用的上行链路子帧相关联。 每个DRX模式与由网络可用于传输到无线设备的不同启用的下行链路子帧相关联。 无线设备可以在启用的上行链路子帧上发送信令和/或数据，并且可以在启用的下行链路子帧上接收信令和/或数据。 无线设备可能在未启用的子帧中掉电以节省电池电量。 描述了在DTX和DRX模式之间快速转换的机制。