BI DIRECTIONAL DECODE AND FORWARD RELAY
    1.
    发明申请
    BI DIRECTIONAL DECODE AND FORWARD RELAY 审中-公开
    BI方向解码和前向继电器

    公开(公告)号:US20100278169A1

    公开(公告)日:2010-11-04

    申请号:US12742721

    申请日:2008-11-11

    IPC分类号: H04J3/00

    摘要: Methods, apparatus and computer program product provide a bi-directional decode and forward relay having at least 2N antennas configured to perform transmit and receive operations in a wireless communications network; radio apparatus configured to perform relay operations through the at least 2N antennas with at least two other communications devices operative in the wireless communications network, each of the at least two other communications devices having N antennas; and a controller configured to operate the radio apparatus to receive data from the at least two communications devices at a time slot K; to jointly encode the data received from the at least two communications devices using at least one of an XOR or a sum operation; and at a time slot (K+1) to operate the radio apparatus to transmit via one antenna the jointly encoded data to the at least two communications devices.

    摘要翻译: 方法,装置和计算机程序产品提供具有至少2N个天线的双向解码和转发中继,被配置为在无线通信网络中执行发射和接收操作; 无线电装置,被配置为通过至少2N个天线与在无线通信网络中操作的至少两个其他通信设备执行中继操作,所述至少两个其他通信设备中的每一个具有N个天线; 以及控制器,被配置为操作所述无线电设备以在时隙K从所述至少两个通信设备接收数据; 使用XOR或和操作中的至少一个来共同编码从所述至少两个通信设备接收的数据; 并且在时隙(K + 1)处操作无线电设备以经由一个天线发送共同编码的数据到至少两个通信设备。

    Method and Apparatus for Facilitating Multicast Service
    4.
    发明申请
    Method and Apparatus for Facilitating Multicast Service 有权
    促进组播服务的方法和装置

    公开(公告)号:US20140105096A1

    公开(公告)日:2014-04-17

    申请号:US14124305

    申请日:2011-06-09

    IPC分类号: H04W4/08 H04W72/00 H04W4/06

    摘要: A method is provided for facilitating multicast service. The method may include receiving data multicast to members of a multicast group. The method may further include determining, based at least in part on an indication received during multicast of the data, that a late joining device has joined the multicast group subsequent to initiation of the multicast. The method may additionally include marking, based at least in part on the received indication, a point at which the late joining device began to participate in the multicast. A corresponding apparatus and computer program product are also provided.

    摘要翻译: 提供了一种方便多播服务的方法。 该方法可以包括接收多播给多播组的成员的数据。 该方法还可以包括至少部分地基于在数据的多播期间接收到的指示来确定后期加入设备在组播开始之后已经加入了多播组。 该方法可以另外包括至少部分地基于所接收的指示来标记晚加入设备开始参与多播的点。 还提供了相应的装置和计算机程序产品。

    System and method for relay coding
    5.
    发明授权
    System and method for relay coding 有权
    中继编码系统和方法

    公开(公告)号:US08281211B2

    公开(公告)日:2012-10-02

    申请号:US12121631

    申请日:2008-05-15

    IPC分类号: H03M13/00

    摘要: Systems and methods for providing relay in communications systems are disclosed. The relay may receive signals from user equipments (UEs) transmitting coded signals. The relay may receive turbo coded signals from the UEs. The relay station may encode a network channel for transmission to the base station using a recursive systematic convolutional (“RSC”) code. The use of RSC for the network code enables the base station to form as well a distributed turbo code as one can with the UE coded signals. In this manner the base station may recover the signal estimates for the UE signals with lower error probability when estimates at the relay station include errors due to imperfect reception. The use of the relay station and the RSC network code enables the base station to receive UE signals with lower error probability even when the transmission path from the UE is imperfect.

    摘要翻译: 公开了在通信系统中提供中继的系统和方法。 中继器可以从发送编码信号的用户设备(UE)接收信号。 中继器可以从UE接收turbo编码信号。 中继站可以使用递归系统卷积码(RSC)编码用于传输到基站的网络信道。 使用RSC作为网络代码使得基站能够形成与UE编码信号一样的分布式turbo码。 以这种方式,当中继站的估计包括由于不完美的接收而引起的错误时,基站可以以较低的错误概率来恢复UE信号的信号估计。 使用中继站和RSC网络代码,即使当来自UE的传输路径不完美时,基站能够接收具有较低错误概率的UE信号。

    Protocols for Multi-Hop Relay System with Centralized Scheduling
    6.
    发明申请
    Protocols for Multi-Hop Relay System with Centralized Scheduling 有权
    具有集中调度的多跳中继系统协议

    公开(公告)号:US20110022917A1

    公开(公告)日:2011-01-27

    申请号:US12920658

    申请日:2009-02-24

    IPC分类号: H04L1/18 H04L12/26

    摘要: Various example embodiments are disclosed herein. In an example embodiment, a method of transmitting data via a wireless transmission path that may include a user equipment as a first end point, a base station as second end point, and at least one relay station as an intermediate point(s). The method may include receiving a data transmission from a prior point in the transmission path. Substantially simultaneously: forwarding the received data to the next point in the transmission path, and determining if the received data is corrupt. Transmitting a transmission message to the next point in the transmission path indicating whether or not the received data was corrupt. And, if the data is not corrupt, transmitting a receipt message to the prior point indicating that the data was uncorrupt when received.

    摘要翻译: 本文公开了各种示例性实施例。 在一个示例实施例中,一种经由无线传输路径发送数据的方法,该无线传输路径可以包括作为第一终点的用户设备,作为第二终点的基站和作为中间点的至少一个中继站。 该方法可以包括从传输路径中的先前点接收数据传输。 基本同时:将接收的数据转发到传输路径中的下一个点,并确定接收的数据是否已损坏。 将传输消息发送到传输路径中的下一个点,指示接收到的数据是否已损坏。 而且,如果数据没有被破坏,则将接收消息发送到先前点,表示数据在接收时未被破坏。

    SYSTEM AND METHOD FOR RELAY CODING
    7.
    发明申请
    SYSTEM AND METHOD FOR RELAY CODING 有权
    用于继电器编码的系统和方法

    公开(公告)号:US20090287979A1

    公开(公告)日:2009-11-19

    申请号:US12121631

    申请日:2008-05-15

    IPC分类号: H03M13/05 G06F11/08

    摘要: Systems and methods for providing relay in communications systems are disclosed. The relay may receive signals from user equipments (UEs) transmitting coded signals. The relay may receive turbo coded signals from the UEs. The relay station may encode a network channel for transmission to the base station using a recursive systematic convolutional (“RSC”) code. The use of RSC for the network code enables the base station to form as well a distributed turbo code as one can with the UE coded signals. In this manner the base station may recover the signal estimates for the UE signals with lower error probability when estimates at the relay station include errors due to imperfect reception. The use of the relay station and the RSC network code enables the base station to receive UE signals with lower error probability even when the transmission path from the UE is imperfect.

    摘要翻译: 公开了在通信系统中提供中继的系统和方法。 中继器可以从发送编码信号的用户设备(UE)接收信号。 中继器可以从UE接收turbo编码信号。 中继站可以使用递归系统卷积码(“RSC”)码对网络信道进行编码以传输到基站。 使用RSC作为网络代码使得基站能够形成与UE编码信号一样的分布式turbo码。 以这种方式,当中继站的估计包括由于不完美的接收而引起的错误时,基站可以以较低的错误概率来恢复UE信号的信号估计。 使用中继站和RSC网络代码,即使当来自UE的传输路径不完美时,基站能够接收具有较低错误概率的UE信号。

    Cluster head assisted method for converting user terminal from D2D communication to cellular communication
    10.
    发明授权
    Cluster head assisted method for converting user terminal from D2D communication to cellular communication 有权
    将用户终端从D2D通信转换为蜂窝通信的簇头辅助方法

    公开(公告)号:US08948770B2

    公开(公告)日:2015-02-03

    申请号:US14234873

    申请日:2012-01-12

    IPC分类号: H04W72/00 H04W74/08

    摘要: The present invention discloses a cluster head assisted method for converting a user terminal from device-to-device (D2D) communication to cellular communication. When quality of a D2D link between a user terminal and a cluster head is lower than a predetermined threshold, if the user terminal has to leave the cluster but still expects to continue an original the service, the user terminal performs cell search and random access, and establishes a radio resource control (RRC) connection with a target base station of a cellular network. Switching from D2D communication to cellular communication is implemented with the assistance of the cluster head, and a communication manner after the switching is provided. The present invention implements mobile switching from D2D communication in distributed cluster communication to cellular communication, which can reduce route search delay and save wireless resources.

    摘要翻译: 本发明公开了一种用于将用户终端从设备到设备(D2D)通信转换为蜂窝通信的簇头辅助方法。 当用户终端和集群头之间的D2D链路的质量低于预定阈值时,如果用户终端必须离开集群但仍然期望继续原始服务,则用户终端执行小区搜索和随机接入, 并建立与蜂窝网络的目标基站的无线资源控制(RRC)连接。 在D2D通信到蜂窝通信的切换的同时,在簇头的协助下进行切换,提供切换后的通信方式。 本发明实现从分布式集群通信中的D2D通信到蜂窝通信的移动交换,可以减少路由搜索延迟并节省无线资源。