公开(公告)号：US20010015999A1

公开(公告)日：2001-08-23

申请号：US09773413

申请日：2001-02-01

Applicant: U.S. PHILIPS CORPORATION

Inventor： Sueng-Il Nam

IPC: H04K001/00 ,  H04B015/00 ,  H04L027/30

CPC classification number: H04B7/084 ,  H04B1/707 ,  H04B7/0613 ,  H04B7/0848

Abstract: A communication system comprises a wireless local area network (LAN) formed by a plurality of spacially separated transceivers (TR, TRnull). Each of the transceivers has a transmitting section (10) for transmitting data by a combination of dual code spread spectrum techniques and a receiving section (12) for recovering the data. The receiving comprises a plurality of diversity antennas (ANT 1 to ANTn), an adaptive forward equal gain combiner (60) having a plurality of branches (62 to 74 and 62null to 74null), each branch being coupled to a respective one of said diversity antennas, an in-phase splitter (92) for splitting an output from the combiner into two output channels, means (94 to 98) for demodulating the signals in the output channels, means (104 to 108) for correlating the signals in each of the output channels with respective ones of the dual spreading codes and means (110) for recovering data from the correlated signals.

Abstract translation: 通信系统包括由多个空间分离的收发器（TR，TR'）形成的无线局域网（LAN）。 每个收发机具有用于通过双码扩频技术的组合和用于恢复数据的接收部分（12）发送数据的发送部分（10）。 接收包括多个分集天线（ANT1至ANTn），具有多个分支（62至74和62'至74'）的自适应前向等效增益组合器（60），每个分支耦合到 所述分集天线，用于将组合器的输出分为两个输出通道的同相分离器（92），用于解调输出通道中的信号的装置（94至98），用于将输出信号中的信号相互关联的装置（104至108） 每个输出通道具有相应的双重扩展码和用于从相关信号中恢复数据的装置（110）。