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    Method and apparatus for multiple access between transceivers in wireless communication using OFDM spread spectrum
    21.
    发明公开
    Method and apparatus for multiple access between transceivers in wireless communication using OFDM spread spectrum 失效
    用于使用OFDM扩频的无线通信中的无线传感器之间的多址接入的方法和装置。

    公开(公告)号：EP0562868A3

    公开(公告)日：1994-07-06

    申请号：EP93302325.1

    申请日：1993-03-25

    申请人： WI-LAN Inc

    发明人： Fattouche, Michael ,  Zagloul, Hatim

    IPC分类号： H04Q7/04

    CPC分类号： H04L27/2649 ,  H04B1/707 ,  H04L5/026 ,  H04L25/03343 ,  H04L27/2602 ,  H04L27/2627 ,  H04L2025/03414

    摘要： A method for allowing a number of wireless transceivers to exchange information (data, voice or video) with each other. A first frame of information is multiplexed over a number of wideband frequency bands at a first transceiver, and the information transmitted to a second transceiver. The information is received and processed at the second transceiver. The information is differentially encoded using phase shift keying. In addition, after a pre-selected time interval, the first transceiver may transmit again. During the preselected time interval, the second transceiver may exchange information with another transceiver in a time duplex fashion. The processing of the signal at the second transceiver may include estimating the phase differential of the transmitted signal and pre-distorting the transmitted signal. A transceiver includes an encoder for encoding information, a wideband frequency division multiplexer for multiplexing the information onto wideband frequency voice channels, and a local oscillator for upconverting the multiplexed information. The apparatus may include a processor for applying a Fourier transform to the multiplexed information to bring the information into the time domain for transmission.
    Use/advantage: Time and frequency multiplexing,
    Multiple access in wideband transmission

    摘要翻译： 一种允许多个无线收发器彼此交换信息（数据，语音或视频）的方法。 信息的第一帧在第一收发器处在多个宽带频带上复用，并且将信息发送到第二收发器。 该信息在第二收发器处被接收和处理。 信息使用相移键控进行差分编码。 此外，在预先选择的时间间隔之后，第一收发器可以再次发送。 在预选的时间间隔期间，第二收发器可以以时间双工方式与另一收发器交换信息。 在第二收发器处的信号的处理可以包括估计所发射的信号的相位差并且对发射的信号进行预失真。 收发器包括用于对信息进行编码的编码器，用于将信息复用到宽带频率语音信道上的宽带分频多路复用器，以及用于上变频多路复用信息的本地振荡器。 该装置可以包括用于对多路复用信息进行傅里叶变换以使信息进入时域以进行传输的处理器。

    PRE-ALLOCATION OF ACCESS CODES IN MULTIPLE-ACCESS SYSTEMS
    24.
    发明授权
    PRE-ALLOCATION OF ACCESS CODES IN MULTIPLE-ACCESS SYSTEMS 有权
    EOREM MEHRFACHZUGRIFFSSYSTEM中的VORHERBESTIMMTE ZUORDNUNG VON ZUGRIFFSKODEN

    公开(公告)号：EP2312900B8

    公开(公告)日：2017-03-22

    申请号：EP10189288.3

    申请日：2007-08-03

    申请人： Wi-LAN Inc.

    发明人： Bourlas, Yair ,  Newham, Adam ,  Wang, Lei ,  Gummadi, Srikanth

    IPC分类号： H04W74/08 ,  H04W36/00

    CPC分类号： H04L27/2601 ,  H04B7/2668 ,  H04J11/0073 ,  H04L5/0051 ,  H04W36/0016 ,  H04W36/08 ,  H04W64/006 ,  H04W72/048 ,  H04W72/14 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0833 ,  H04W74/085 ,  H04W74/0875 ,  H04W74/0891 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08

    摘要： Systems and methods of pre-allocating identifiers to wireless devices for use in requesting resources over a random access channel are described. A wireless communication system includes a random access channel over which wireless devices can anonymously send requests for resources. The base stations receiving and processing the anonymous requests reduces the probability of random access channel collisions and conserves the resources needed to support the anonymous requests by pre-allocating one or more codes to select wireless devices. The wireless devices having the pre-allocated codes can transmit a particular code over the random access channel as a request for resources that uniquely identifies the requestor.

    摘要翻译： 描述了将标识符预分配给无线设备以用于在随机接入信道上请求资源的系统和方法。 无线通信系统包括随机接入信道，无线设备可通过该随机接入信道匿名地发送资源请求。 接收和处理匿名请求的基站减少了随机接入信道冲突的概率，并且通过预分配一个或多个代码来选择无线设备来节省支持匿名请求所需的资源。 具有预先分配的代码的无线设备可以通过随机接入信道发送特定的代码，作为唯一地标识请求者的资源的请求。

    BASE STATION SYNCHRONIZATION FOR A SINGLE FREQUENCY NETWORK
    29.
    发明公开
    BASE STATION SYNCHRONIZATION FOR A SINGLE FREQUENCY NETWORK 有权
    基本信息

    公开(公告)号：EP2140580A4

    公开(公告)日：2013-12-25

    申请号：EP08746013

    申请日：2008-04-16

    申请人： WI LAN INC

    发明人： CONNORS DENNIS P ,  JU HUEI-JIUN ,  GOVIND KEERTHI S ,  ZAHEDI SINA

    IPC分类号： H04B7/26 ,  H04L7/00 ,  H04W36/02 ,  H04W36/18

    CPC分类号： H04W36/02 ,  H04W36/18

    摘要： Methods, apparatus and systems for generating and synchronizing a macro-diversity region transmitted by base stations in a network includes a receiving module configured to receive a plurality of packets of content data. A controller module coupled to the receiving module and configured to generate a macro-diversity region data that includes at least one packet of the plurality of packets of content data, and to generate a time reference and frame offset information to indicate an offset from the time reference and to further identify a second base station transmission frame that will include the second macro-diversity region data. A communication module to communicate a macro-diversity region message that includes the macro-diversity region data and the macro-diversity region control information to a plurality of base stations, configured to synchronize the transmission of the macro-diversity region data at the plurality of base stations.

    摘要翻译： 用于生成和同步由网络中的基站发送的宏分集区域的方法，装置和系统包括被配置为接收多个内容数据分组的接收模块。 控制器模块，其耦合到所述接收模块并且被配置为生成包括所述多个内容数据分组中的至少一个分组的宏分集区域数据，并且生成时间参考和帧偏移信息以指示从所述时间 并且进一步识别将包括第二宏分集区域数据的第二基站传输帧。 一种通信模块，用于将包含宏分集区域数据和宏分集区域控制信息的宏分集区域消息传送到多个基站，该多个基站被配置为使多个基站中的宏分集区域数据的传输同步 基站

    RADIO FREQUENCY FRONT END AND SPECTRUM SENSOR
    30.
    发明公开
    RADIO FREQUENCY FRONT END AND SPECTRUM SENSOR 审中-公开
    射频前端和距离传感器

    公开(公告)号：EP2484108A1

    公开(公告)日：2012-08-08

    申请号：EP10819763.3

    申请日：2010-09-29

    申请人： WI-LAN, Inc.

    发明人： BIRKETT, Neil ,  WU, Shiquan

    IPC分类号： H04N5/44 ,  H04N5/50

    CPC分类号： H04H40/18 ,  H04B1/0064 ,  H04H2201/60 ,  H04L25/0278 ,  H04N21/4263 ,  H04N21/6112

    摘要： A radio frequency front end for a television band receiver and spectrum sensor includes a first plurality of adaptive matching networks connected to a signal summer that combines signals received by the first plurality of antennas respectively connected to the first plurality of adaptive matching networks and outputs a combined signal to each of a second plurality of downconverter/tuners. The downconverter/tuners are respectively or collectively connected to an analog to digital converter that converts output of the second plurality of downconverter/tuners into at least one digital signal that is output to the television band receiver and spectrum sensor.