Mobile communication system using CDMA site diversity system

Details Mobile communication system using CDMA site diversity system Mobile communication system using CDMA site diversity system

1997-04-16

1999-08-10

Hofsass, Jeffery A.

Multiplex communications

Fault recovery

370335, 370342, 370332, 371 3702, 371 51, 375200, 455562, 455101, G01R 3108

Patent

active

059369370

ABSTRACT:
A mobile communication system comprises a mobile station for transmitting packet data. A number of base stations receive the packet data and produce received packet data, respectively. A mobile exchange simultaneously receives a number of received packet data from the base stations and comprises a data quality decision unit for deciding quality of each received packet data to produce a decision result. The data quality decision unit produces an error detection signal when all the received packet data have the frame error. A data selecting unit selects one received packet data having the best quality of these received packet data according to the decision result and produces it as selected packet data. A packet data reproducing unit carries out a predetermined data reproduction operation to reproduce packet data out of a number of the received packet data and supplies it to the data selecting unit as reproduced packet data. A frame error detecting unit detects whether there is a frame error in the reproduced packet data and supplies, upon detection of the frame error, to the data processing unit a frame error detection signal indicating that there is the frame error in the reproduced packet data. The data selecting unit produces the reproduced packet data as the selected packet data in response to the error detection signal.

REFERENCES:
patent: 5754586 (1998-05-01), Carsello
patent: 5777307 (1998-07-01), Yamazaki
patent: 5778010 (1998-07-01), Hatta
patent: 5812541 (1998-09-01), Fuentes et al.
patent: 5815507 (1998-09-01), Vinggaard et al.

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