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    Quality of service control in multiple hop wireless communication environments
    21.
    发明授权
    Quality of service control in multiple hop wireless communication environments 有权
    多跳无线通信环境中的服务质量控制

    公开(公告)号：US08305897B2

    公开(公告)日：2012-11-06

    申请号：US12172899

    申请日：2008-07-14

    申请人： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David G. Steer

    发明人： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David G. Steer

    IPC分类号： G01R31/08 ,  H04W4/00 ,  H04L12/28

    CPC分类号： H04W40/12 ,  H04B7/2606 ,  H04L12/4633 ,  H04L47/24 ,  H04L47/28 ,  H04L69/22 ,  H04W16/26 ,  H04W28/18 ,  H04W28/24 ,  H04W40/22 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/12 ,  H04W84/047 ,  H04W84/12

    摘要： One or more relay stations may be employed along a wireless communication access path between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add scheduling information to the PDUs before they are delivered to the downstream intermediate relay stations or egress stations. The scheduling information is used by the downstream stations to schedule the PDUs for further delivery. The scheduling information may also be used by the egress station to schedule the PDUs for delivery. The scheduling information added to the PDU by the ingress station bears on a QoS class associated with the PDU, a deadline for the egress station to deliver the PDU, or a combination thereof.

    摘要翻译： 可以沿入站和出站之间的无线通信接入路径采用一个或多个中继站。 通过任意数量的中间中继站在进入和出站之间建立逻辑通信隧道，以处理PDU的会话流。 当PDU到达时，进入站可以在PDU递送到下游中间中继站或出站之前确定并将调度信息添加到PDU。 下游站使用调度信息来调度PDU以进一步传送。 调度信息也可以由出站使用，以调度用于传送的PDU。 由入站站添加到PDU的调度信息承载在与PDU相关联的QoS类别，出站台递送PDU的最后期限或其组合。

    System and method for wireless relay frame structure, protocol, and operation
    23.
    发明授权
    System and method for wireless relay frame structure, protocol, and operation 有权
    无线中继帧结构，协议和操作的系统和方法

    公开(公告)号：US08576753B2

    公开(公告)日：2013-11-05

    申请号：US12937476

    申请日：2009-04-21

    申请人： Nimal Gamini Senarath ,  Israfil Bahceci ,  Mo-Han Fong ,  Peiying Zhu ,  Derek Yu ,  Hang Zhang ,  Wen Tong ,  Sheng Sun

    发明人： Nimal Gamini Senarath ,  Israfil Bahceci ,  Mo-Han Fong ,  Peiying Zhu ,  Derek Yu ,  Hang Zhang ,  Wen Tong ,  Sheng Sun

    IPC分类号： H04B7/14

    CPC分类号： H04B7/155 ,  H04W16/26 ,  H04W24/04 ,  H04W36/00 ,  H04W80/02 ,  H04W84/047

    摘要： A relay station is provided for use in a wireless communication system. The wireless communication system includes a plurality of base stations communicatively coupled to a backhaul network and at least one mobile station. The relay station is shared by at least a first base station and a second base station. The relay station includes a transceiver, a controller and relay circuitry. The transceiver transmits signals to and receives signals both base stations and a mobile station. Signals transmitted to the base stations include a single preamble, MAP and FCH. The controller is electrically connected to the transceiver and is operable to measure a signal quality of the mobile station while connected to the first base station. The relay circuitry is electrically connected to the controller and is operable to conduct a phased handoff from the first base station to the second base station based on the signal quality.

    摘要翻译： 提供了一种在无线通信系统中使用的中继站。 无线通信系统包括通信地耦合到回程网络和至少一个移动站的多个基站。 中继站由至少第一基站和第二基站共享。 中继站包括收发器，控制器和继电器电路。 收发器向基站和移动台发送信号并接收信号。 发送到基站的信号包括单个前导码，MAP和FCH。 控制器电连接到收发器，并且可操作以在连接到第一基站时测量移动台的信号质量。 继电器电路电连接到控制器，并且可操作以基于信号质量从第一基站到第二基站进行定相切换。

    Dynamic zoning changes in multi-hop relaying systems
    24.
    发明授权
    Dynamic zoning changes in multi-hop relaying systems 有权
    多跳中继系统中的动态分区更改

    公开(公告)号：US08514765B1

    公开(公告)日：2013-08-20

    申请号：US12463529

    申请日：2009-05-11

    申请人： Nimal Gamini Senarath ,  Israfil Bahceci ,  Hang Zhang ,  Derek Yu ,  Peiying Zhu ,  Wen Tong

    发明人： Nimal Gamini Senarath ,  Israfil Bahceci ,  Hang Zhang ,  Derek Yu ,  Peiying Zhu ,  Wen Tong

    IPC分类号： H04B7/14

    CPC分类号： H04L27/2656 ,  H04B7/15507 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0087

    摘要： A method dynamically changes a relay zone offset in a wireless communication system. The wireless communication system includes a base station, at least one relay station, and at least one mobile station. Each relay station is located a hop distance from the base station. A notification of a change in relay zone offset is transmitted to a relay station. Implementation of the change in relay zone offset is delayed for a predetermined amount of frames. Relay zone information is transmitted using the changed relay zone offset.

    摘要翻译： 一种方法动态地改变无线通信系统中的中继区偏移。 无线通信系统包括基站，至少一个中继站和至少一个移动站。 每个中继站位于与基站的跳跃距离。 将中继区域偏移改变的通知发送到中继站。 中继区偏移的变化的实现被延迟预定量的帧。 使用改变的中继区偏移发送中继区信息。

    Wireless access point security for multi-hop networks
    25.
    发明授权
    Wireless access point security for multi-hop networks 有权
    多跳网络的无线接入点安全

    公开(公告)号：US08468338B2

    公开(公告)日：2013-06-18

    申请号：US12307695

    申请日：2007-07-06

    申请人： Hang Zhang ,  Peiying Zhu ,  Mo-Han Fong ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David Steer

    发明人： Hang Zhang ,  Peiying Zhu ,  Mo-Han Fong ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David Steer

    IPC分类号： H04L29/06

    CPC分类号： H04W12/02 ,  H04B7/155 ,  H04L63/0428 ,  H04L63/0464 ,  H04L63/0478 ,  H04W28/16 ,  H04W84/18 ,  H04W88/04 ,  H04W88/08

    摘要： Security in wireless communication networks that employ relay stations to facilitate communications between base stations and mobile stations is enhanced. In one embodiment, resource information provided to one or more relay stations from a base station or another relay station is encrypted prior to being delivered to the one or more relay stations. Only authorized relay stations are allocated an appropriate key necessary to decrypt the resource information. As such, only appropriate relay stations are able to access and use the resource information to effect communications directly or indirectly between the base stations and the mobile stations. In certain embodiments, the resource information is delivered between the various base and relay stations using either unicast or multicast delivery techniques.

    摘要翻译： 增强了使用中继站以促进基站和移动台之间的通信的无线通信网络中的安全性。 在一个实施例中，在被传送到一个或多个中继站之前，将从基站或另一中继站提供给一个或多个中继站的资源信息进行加密。 只有授权的中继站才能分配解密资源信息所需的适当的密钥。 因此，只有适当的中继站能够访问和使用资源信息来直接或间接地在基站和移动台之间进行通信。 在某些实施例中，使用单播或多播递送技术在各种基站和中继站之间传送资源信息。

    Path selection for a wireless system with relays
    26.
    发明授权
    Path selection for a wireless system with relays 有权
    带有继电器的无线系统的路径选择

    公开(公告)号：US08144597B2

    公开(公告)日：2012-03-27

    申请号：US12347002

    申请日：2008-12-31

    申请人： Nimal Gamini Senarath ,  Derek Yu ,  Hang Zhang ,  Israfil Bahceci ,  Peiying Zhu ,  Wen Tong

    发明人： Nimal Gamini Senarath ,  Derek Yu ,  Hang Zhang ,  Israfil Bahceci ,  Peiying Zhu ,  Wen Tong

    IPC分类号： G01R31/08

    CPC分类号： H04W40/22 ,  H04B7/155 ,  H04L41/5003 ,  H04L41/5087 ,  H04L45/122 ,  H04L45/22 ,  H04W40/02 ,  Y02D70/1222 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/30 ,  Y02D70/39 ,  Y02D70/446

    摘要： A method selects a path for forwarding a data packet in a wireless communication system. A system capacity versus delay impact curve is calculated for a direct path to mobile station. The direct path has a capacity cost based on communication quality of a direct link between a base station and the mobile station. This curve is shifted by a predetermined time corresponding to an additional delay over a relay path to produce a projected capacity curve for the relay path having a second capacity cost determined according to a combined measure of signal quality of multiple links in the relay path. The second capacity cost is multiplied by a capacity cost ratio to produce a relay capacity curve. The direct path or the relay path is selected based on a comparison of the system capacity versus delay impact curve and the relay capacity curve according to a QoS requirement.

    摘要翻译： 一种方法选择用于在无线通信系统中转发数据分组的路径。 针对移动台的直接路径计算系统容量对延迟影响曲线。 直接路径具有基于基站和移动站之间的直接链路的通信质量的容量成本。 该曲线偏移了与继电器路径上的附加延迟相对应的预定时间，以产生具有根据中继路径中的多个链路的信号质量的组合测量确定的第二容量成本的中继路径的投影容量曲线。 第二容量成本乘以容量成本比来产生继电器容量曲线。 根据QoS要求，基于系统容量与延迟冲击曲线和中继容量曲线的比较来选择直接路径或中继路径。

    Quality of service control in multiple hop wireless communication environments
    27.
    发明授权
    Quality of service control in multiple hop wireless communication environments 有权
    多跳无线通信环境中的服务质量控制

    公开(公告)号：US08000243B2

    公开(公告)日：2011-08-16

    申请号：US12172890

    申请日：2008-07-14

    申请人： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David G. Steer

    发明人： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David G. Steer

    IPC分类号： G01R31/08 ,  H04L12/28 ,  H04W4/00

    CPC分类号： H04W40/12 ,  H04B7/2606 ,  H04L12/4633 ,  H04L47/24 ,  H04L47/28 ,  H04L69/22 ,  H04W16/26 ,  H04W28/18 ,  H04W28/24 ,  H04W40/22 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/12 ,  H04W84/047 ,  H04W84/12

    摘要： One or more relay stations may be employed along a wireless communication access path between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add scheduling information to the PDUs before they are delivered to the downstream intermediate relay stations or egress stations. The scheduling information is used by the downstream stations to schedule the PDUs for further delivery. The scheduling information may also be used by the egress station to schedule the PDUs for delivery. The scheduling information added to the PDU by the ingress station bears on a QoS class associated with the PDU, a deadline for the egress station to deliver the PDU, or a combination thereof.

    摘要翻译： 可以沿入站和出站之间的无线通信接入路径采用一个或多个中继站。 通过任意数量的中间中继站在进入和出站之间建立逻辑通信隧道，以处理PDU的会话流。 当PDU到达时，进入站可以在PDU递送到下游中间中继站或出站之前确定并将调度信息添加到PDU。 下游站使用调度信息来调度PDU以进一步传送。 调度信息也可以由出站使用，以调度用于传送的PDU。 由入站站添加到PDU的调度信息承载在与PDU相关联的QoS类别，出站台递送PDU的最后期限或其组合。

    FREQUENCY DIVISION DUPLEXING AND HALF DUPLEX FREQUENCY DIVISION DUPLEXING IN MULTIHOP RELAY NETWORKS
    28.
    发明申请
    FREQUENCY DIVISION DUPLEXING AND HALF DUPLEX FREQUENCY DIVISION DUPLEXING IN MULTIHOP RELAY NETWORKS 有权
    多功能继电器网络中频分复用和双工双工频分双工

    公开(公告)号：US20110188443A1

    公开(公告)日：2011-08-04

    申请号：US12875516

    申请日：2010-09-03

    申请人： Israfil Bahceci ,  Nimal Senerath ,  Hang Zhang ,  Peiying Zhu ,  Derek Yu ,  Wen Tong

    发明人： Israfil Bahceci ,  Nimal Senerath ,  Hang Zhang ,  Peiying Zhu ,  Derek Yu ,  Wen Tong

    IPC分类号： H04J3/08

    CPC分类号： H04J3/08

    摘要： In a method of operating a relay station in a multihop wireless relay network, the relay station in communication with a superordinate station and a subordinate station: a downlink transmission from the superordinate station is received at a first carrier frequency; an uplink transmission from the subordinate station is received at a second carrier frequency; a downlink transmission to the subordinate station is transmitted at the first carrier frequency; and an uplink transmission to the superordinate station is transmitted at the second carrier frequency. The communication between the relay station and the superordinate station may be scheduled using frames, where each frame comprises: a downlink portion at the first carrier frequency, the downlink portion comprising a first downlink subframe for communication between the superordinate station and a first plurality of stations, and a second downlink subframe for communication between the superordinate station and a second plurality of stations; and an uplink portion at the second carrier frequency, the uplink portion comprising a first uplink subframe for communication between the superordinate station and the first plurality of stations, and a second uplink subframe for communication between the superordinate station and the second plurality of stations. The first downlink subframe may correspond with a first time interval, and the first uplink subframe may correspond with a second time interval, where the first time interval and the second time interval do not overlap. The relay station may be one of the first plurality of stations, whereby the receiving the downlink transmission occurs in the first downlink subframe, and the transmitting the uplink transmission occurs in the first uplink subframe.

    摘要翻译： 在多跳无线中继网络中操作中继站的方法中，与上级站和下位站通信的中继站：以上述第一载波频率接收来自上级站的下行传输; 在第二载波频率处接收来自下属站的上行链路传输; 以第一载波频率发送到下属站的下行链路传输; 并且以第二载波频率发送到上级站的上行链路传输。 可以使用帧来调度中继站和上级站之间的通信，其中每个帧包括：第一载波频率的下行链路部分，下行链路部分包括用于上级站和第一多个站之间的通信的第一下行链路子帧 以及用于上级站和第二多个站之间的通信的第二下行链路子帧; 以及在所述第二载波频率的上行链路部分，所述上行链路部分包括用于所述上级站和所述第一多个站之间的通信的第一上行链路子帧，以及用于所述上级站与所述第二多个站之间的通信的第二上行链路子帧。 第一下行链路子帧可以对应于第一时间间隔，并且第一上行链路子帧可以对应于第一时间间隔和第二时间间隔不重叠的第二时间间隔。 中继站可以是第一多个站中的一个，由此在第一下行链路子帧中发生接收下行链路传输，并且在第一上行链路子帧中发生上行链路传输。