公开(公告)号：WO1995022859A1

公开(公告)日：1995-08-24

申请号：PCT/US1995001421

申请日：1995-02-03

Applicant: MICRILOR, INC.

Inventor： MICRILOR, INC. ,  CAFARELLA, John, H. ,  FISCHER, Jeffrey, H.

IPC: H04B01/707

CPC classification number: H04B1/711 ,  H04B1/707 ,  H04B2201/709709 ,  H04J13/0048 ,  H04J13/102 ,  H04W84/12

Abstract: An apparatus and method for communicating data between at least two data devices, suitable for use as a wireless local-area network, that provides robust data communication via a radio communication channel corrupted by multipath interference, particularly at high data rates. A preferred embodiment of the invention represents data as a sequence of Walsh-function waveforms (66) encoded by pseudo-noise direct-sequence spread-spectrum modulation (70). Walsh function encoding of the data provides a long symbol duration, thereby allowing the spread spectrum modulation to provide processing gain sufficient to substantially overcome multipath interference, while providing a high data rate.

Abstract translation: 一种用于在至少两个适合用作无线局域网的数据设备之间传送数据的装置和方法，该数据设备经由由多路径干扰（特别是在高数据速率）损坏的无线电通信信道提供鲁棒的数据通信。 本发明的优选实施例将数据表示为由伪噪声直接序列扩频调制（70）编码的沃尔什函数波形序列（66）。 数据的沃尔什函数编码提供长的符号持续时间，从而允许扩展频谱调制提供足以实质上克服多径干扰的处理增益，同时提供高数据速率。