发明名称 |
CODE DIVISION MULTIPLEX ACCESS MOBILE COMMUNICATION SYSTEM |
摘要 |
A mobile communication system for communication by a code division multiplex access (CDMA) method between a base station and a plurality of mobile stations, is provided with a transmitter whereby the base station diffuses a plurality of information series (S1 to Sn) by multipliers (11 to 1n) by use of the common diffusion codes from a diffusion code generating circuit (10), and these diffused codes are combined by a synthesizer (30) through transmission timing adjusting circuits (21 to 2n) to effect the transmission timing offset multiplexing and to transmit synthesized signals to a plurality of mobile stations at different transmitting timings. Each mobile station is provided with a receiver which receives signals transmitted from the transmitter of the base station, and inversely diffuses the received signal by use of the same diffusion code as the one used by the transmitter to reproduce the original information series. |
申请公布号 |
WO9410766(A1) |
申请公布日期 |
1994.05.11 |
申请号 |
WO1993JP01592 |
申请日期 |
1993.11.04 |
申请人 |
NTT MOBILE COMMUNICATIONS NETWORK INC.;UMEDA, NARUMI;MATSUMOTO, TADASHI;DOUZONO, YOUICHI |
发明人 |
UMEDA, NARUMI;MATSUMOTO, TADASHI;DOUZONO, YOUICHI |
分类号 |
H04B7/26;H04J13/00;H04J13/16;(IPC1-7):H04B7/26 |
主分类号 |
H04B7/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|