Data communication system using spectral overlay
    71.
    发明授权
    Data communication system using spectral overlay 失效
    数据通信系统采用频谱叠加

    公开(公告)号:US5548805A

    公开(公告)日:1996-08-20

    申请号:US294489

    申请日:1994-08-23

    CPC classification number: H04W48/10 H04W16/10 H04W16/32

    Abstract: A data communication system is provided for use with a cellular system containing an array of cells and a cellular transmitter/receiver located within each cell of the array. Each cellular transmitter/receiver is adapted for transmitting and receiving voice and/or data communication over predetermined channelized frequencies associated with the particular cell in which the cellular transmitter/receiver is located. In accordance with the invention a base data transmission station is located in each cell and is adapted for transmitting a single data stream across a plurality of channels, each of which channels is adapted to carry a single stream of information. Each base data transmitting station does not transmit on the predetermined channels that are assigned to the particular cell in which the base data transmitting station is located (i.e., those channels are "notched"). In one embodiment used channels that are carrying streams of information in adjacent cells are detected and the base data transmission station does not transmit over the frequencies of the used channels (i.e., the used channels are "notched"). In this manner, the single data stream transmitted by the base data transmitting station is transmitted over all of the channels of the cellular array except for the channels that are notched. The base data transmitting station also transmits a notching pattern, which is continuously updated, to mobile transmitters within the cell. The notching pattern comprises information concerning the channels in the cell that are notched and information concerning used channels of adjacent cells that are notched. The mobile transmitters in the cell will transmit a single data stream over all of the plurality of channels of the cellular array except for the notched channels.

    Abstract translation: 提供了一种数据通信系统,用于与包含阵列阵列的蜂窝系统和位于阵列的每个小区内的蜂窝发射机/接收机一起使用。 每个蜂窝发射机/接收机适于在与蜂窝发射机/接收机所在的特定小区相关联的预定信道化频率上发送和接收语音和/或数据通信。 根据本发明,基数据传输站位于每个小区中,并且适于在多个信道上发送单个数据流,每个信道中的每个信道适于承载单个信息流。 每个基本数据发送站不在分配给基本数据发送站所在的特定小区(即,这些信道被“切换”)的预定信道上进行发送。 在一个实施例中,使用正在携带相邻小区中的信息流的信道被检测,并且基站数据传输站不会在所使用的信道的频率(即,所使用的信道被“缺口”)上传送。 以这种方式,由基本数据发送站发送的单个数据流在除了缺口的信道之外的蜂窝阵列的所有信道上发送。 基站数据发射站还将连续更新的陷波模式发送到小区内的移动发射机。 陷波模式包括关于小区中被缺口的信道的信息和关于被切割的相邻小区的已使用信道的信息。 小区中的移动发射机将在除了缺口信道之外的蜂窝阵列的所有多个信道的所有通道上传送单个数据流。

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