Method and apparatus for bandwidth request/grant protocols in a wireless communication system
    21.
    发明授权
    Method and apparatus for bandwidth request/grant protocols in a wireless communication system 有权
    无线通信系统中带宽请求/授权协议的方法和装置

    公开(公告)号:US09591639B2

    公开(公告)日:2017-03-07

    申请号:US13901185

    申请日:2013-05-23

    申请人: Wi-LAN, Inc.

    摘要: A method and apparatus for allocating bandwidth in a broadband wireless communication system is disclosed. One embodiment uses a self-correcting bandwidth request/grant protocol. The self-correcting bandwidth request/grant protocol utilizes a combination of incremental and aggregate bandwidth requests. CPEs primarily transmit incremental bandwidth requests to their associated base stations, followed by periodic transmissions of aggregate bandwidth requests. The use of periodic aggregate bandwidth requests (that express the current state of their respective connection queues) allows the bandwidth allocation method and apparatus to be “self-correcting”. Another embodiment utilizes an abridged bandwidth request/grant protocol to allocate bandwidth. The abridged bandwidth request/grant protocol system utilizes padding packets to request a reduction in bandwidth allocation to a CPE. A base station modem alerts a base station CPU when the BS modem receives a padding packet from a CPE. After alerting the BS CPU the method can reduce the associated CPE's bandwidth allocation.

    摘要翻译: 公开了一种用于在宽带无线通信系统中分配带宽的方法和装置。 一个实施例使用自校正带宽请求/授权协议。 自校正带宽请求/授权协议使用增量和聚合带宽请求的组合。 CPE主要向其相关联的基站发送增量带宽请求,随后是聚合带宽请求的周期性传输。 使用周期性聚合带宽请求(表示其相应连接队列的当前状态)允许带宽分配方法和装置“自校正”。 另一个实施例利用了一个节省带宽的请求/授权协议来分配带宽。 精简带宽请求/授权协议系统利用填充分组来请求减少对CPE的带宽分配。 当BS调制解调器从CPE接收填充分组时,基站调制解调器提醒基站CPU。 在提醒BS CPU之后,该方法可以减少相关CPE的带宽分配。

    METHODS AND SYSTEMS FOR TRANSMISSION OF MULTIPLE MODULATED SIGNALS OVER WIRELESS NETWORKS

    公开(公告)号:US20170230936A1

    公开(公告)日:2017-08-10

    申请号:US15499235

    申请日:2017-04-27

    申请人: Wi-LAN, Inc.

    IPC分类号: H04W72/00 H04W76/02 H04W60/00

    摘要: A method and apparatus for requesting and allocating bandwidth in a broadband wireless communication system. The method and apparatus includes a combination of techniques that allow a plurality of CPEs to communicate their bandwidth request messages to respective base stations. One technique includes a “polling” method whereby a base station polls CPEs individually or in groups and allocates bandwidth specifically for the purpose of allowing the CPEs to respond with bandwidth requests. The polling of the CPEs by the base station may be in response to a CPE setting a “poll-me bit” or, alternatively, it may be periodic. Another technique comprises “piggybacking” bandwidth requests on bandwidth already allocated to a CPE. Currently active CPEs request bandwidth using unused portions of uplink bandwidth that is already allocated to the CPE. The CPE is responsible for distributing the allocated uplink bandwidth in a manner that accommodates the services provided by the CPE.

    Framing for an adaptive modulation communication system

    公开(公告)号:US09713137B2

    公开(公告)日:2017-07-18

    申请号:US14835471

    申请日:2015-08-25

    申请人: Wi-LAN, Inc.

    摘要: A system and method for mapping a combined frequency division duplexing (FDD) Time Division Multiplexing (TDM)/Time Division Multiple Access (TDMA) downlink subframe for use with half-duplex and full-duplex terminals in a communication system. Embodiments of the downlink subframe vary Forward Error Correction (FEC) types for a given modulation scheme as well as support the implementation of a smart antenna at a base station in the communication system. Embodiments of the system are also used in a TDD communication system to support the implementation of smart antennae. A scheduling algorithm allows TDM and TDMA portions of a downlink to efficiently co-exist in the same downlink subframe and simultaneously support full and half-duplex terminals.

    FRAMING FOR AN ADAPTIVE MODULATION COMMUNICATION SYSTEM
    30.
    发明申请
    FRAMING FOR AN ADAPTIVE MODULATION COMMUNICATION SYSTEM 审中-公开
    自适应调制通信系统的框架

    公开(公告)号:US20150365927A1

    公开(公告)日:2015-12-17

    申请号:US14835471

    申请日:2015-08-25

    申请人: Wi-LAN, Inc.

    摘要: A system and method for mapping a combined frequency division duplexing (FDD) Time Division Multiplexing (TDM)/Time Division Multiple Access (TDMA) downlink subframe for use with half-duplex and full-duplex terminals in a communication system. Embodiments of the downlink subframe vary Forward Error Correction (FEC) types for a given modulation scheme as well as support the implementation of a smart antenna at a base station in the communication system. Embodiments of the system are also used in a TDD communication system to support the implementation of smart antennae. A scheduling algorithm allows TDM and TDMA portions of a downlink to efficiently co-exist in the same downlink subframe and simultaneously support full and half-duplex terminals.

    摘要翻译: 用于映射在通信系统中与半双工和全双工终端一起使用的组合频分双工(FDD)时分复用(TDM)/时分多址(TDMA))下行链路子帧的系统和方法。 下行链路子帧的实施例对于给定的调制方案改变前向纠错(FEC)类型,并且支持在通信系统中的基站处的智能天线的实现。 该系统的实施例也用于TDD通信系统以支持智能天线的实现。 调度算法允许下行链路的TDM和TDMA部分在相同的下行链路子帧中有效共存,同时支持全双工和半双工终端。