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    IMPROVED RETRANSMISSIONS IN A WIRELESS COMMUNICATIONS SYSTEM
    1.
    发明公开
    IMPROVED RETRANSMISSIONS IN A WIRELESS COMMUNICATIONS SYSTEM 有权
    EEREM DRAHTLOSEN KOMMUNIKATIONSSYSTEM中的VERBESSERTERÜCKÜBERTRAGUNGEN

    公开(公告)号：EP2119086A4

    公开(公告)日：2014-08-06

    申请号：EP08724113

    申请日：2008-03-06

    Applicant: ERICSSON TELEFON AB L M

    Inventor： LARSSON PETER

    IPC: H04L1/18 ,  H04B7/15 ,  H04L1/16

    CPC classification number: H04L1/1825 ,  H04B7/15 ,  H04L1/0026 ,  H04L1/0076 ,  H04L1/1607 ,  H04L1/1819 ,  H04L1/1838 ,  H04L1/1845 ,  H04L1/1848 ,  H04L1/20 ,  H04L1/22 ,  H04L2001/0097

    Abstract: A sender for a communications system transmits data as packets to a receiver. The receiver transmits quality values to the sender representing the reception quality of packets received with errors. The receiver stores information regarding a number of received data packets, and there is a relay transceiver between the sender and the receiver. Both the relay transceiver and the sender can encode data packets into composite packets, and to transmit composite packets to the receiver. The stored information in the receiver comprises the data in correctly received packets and information regarding the reception quality of packets received with errors and the data of those packets, and the stored information is used by the receiver to decode composite packets, thereby extracting the data in the packets of the composite packets.

    Abstract translation: 通信系统的发送者将数据作为数据包发送到接收机。 接收方向发送者发送质量值，表示接收错误的接收质量。 接收器存储关于多个接收数据分组的信息，并且在发送器和接收器之间存在中继收发器。 中继收发器和发送器都可以将数据包编码为复合数据包，并将复合数据包传输到接收器。 接收机中存储的信息包括正确接收的数据包中的数据和有关错误接收到的数据包的接收质​​量以及这些数据包的数据的信息，接收机使用存储的信息对复合数据包进行解码，从而提取数据 复合报文的报文。

    SCHEDULING IN A WIRELESS MULTI-HOP RELAY NETWORK
    4.
    发明公开
    SCHEDULING IN A WIRELESS MULTI-HOP RELAY NETWORK 有权
    调度IN A WIRELESS更多的权力中继网络

    公开(公告)号：EP1958345A4

    公开(公告)日：2014-04-30

    申请号：EP05813490

    申请日：2005-11-29

    Applicant: ERICSSON TELEFON AB L M

    Inventor： LARSSON PETER

    IPC: H04B7/02 ,  H04B7/15 ,  H04L27/26

    CPC classification number: H04L5/0048 ,  H04B7/15592 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0057 ,  H04L2001/0097 ,  H04W40/28 ,  H04W52/40

    Abstract: A wireless relaying network having a number of network nodes including a designated originating node, at least one relaying node, and at least two receiving nodes. The designated originating node transmits a pilot signal, and the relaying node(s) receives and forwards the pilot signal to the receiving nodes, each of which measures channel quality based on the received pilot signal. At least part of the receiving nodes feed information on the measured channel quality all the way back to the designated originating node, and the originating node then schedules data for transmission to at least one selected node of the receiving nodes based on the received channel quality information. Subsequently, the designated originating node transmits data to the selected receiving node(s) via the same relaying node(s) that forwarded the pilot signal. In this way, multi-user diversity scheduling is introduced to relaying networks that provides significant data rate enhancements.

    METHOD AND ARRANGEMENT FOR LINK COST DETERMINATION FOR ROUTING IN WIRELESS NETWORKS
    9.
    发明公开
    METHOD AND ARRANGEMENT FOR LINK COST DETERMINATION FOR ROUTING IN WIRELESS NETWORKS 有权
    关于路由的方法和系统CHARGES计提无线网络的ROUTES

    公开(公告)号：EP1935146A4

    公开(公告)日：2010-06-23

    申请号：EP05794573

    申请日：2005-10-12

    Applicant: ERICSSON TELEFON AB L M

    Inventor： LARSSON PETER

    IPC: H04L12/56

    CPC classification number: H04W40/16 ,  H04L45/123 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/34

    Abstract: The invention relates to determination of a link cost employable in route determination and data forwarding in a multihop communication network (1). This link cost is adapted to the particular characteristics of wireless contention-based networks (1), in which both network nodes (10, 20) involved in node-to-node data forwarding block neighbor nodes (30, 40, 50) that have to defer medium access during the data forwarding. The link cost is determined based on the estimated total number of nodes (30, 40, 50) that are blocked if data is forwarded on a wireless link (12) from a node (10) to another node (20). The link cost may also be based on a per bit normalized expected transmit duration for the data forwarding in combination with said estimated number of nodes. Usage of the link cost in route determination minimizes the number of truly blocked nodes in the network (1) and increased the network capacity.

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