Methods and apparatus for CDMA rate detection

Details Methods and apparatus for CDMA rate detection Methods and apparatus for CDMA rate detection

1998-01-30

2000-10-17

Chin, Stephen

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

375225, 375262, 370342, 370479, H03D 100, H04L 2706, H04B 346, H04B 1700, H04Q 120

Patent

active

061342785

ABSTRACT:
Techniques for more accurately detecting the data rate of a frame of data in a cellular telephone system are described. Data is preferably received at one of four rates: full, half, quarter and eighth. A correlation is performed between the incoming soft data and the data generated by re-encoding and re-repeating the data. Variations on the approach make it readily possible to accurately perform rateset 1 or rateset 2 rate detection.

REFERENCES:
patent: 5396516 (1995-03-01), Padovani et al.
patent: 5619524 (1997-04-01), Ling et al.
patent: 5671255 (1997-09-01), Wang et al.
patent: 5757850 (1998-05-01), Takaki
patent: 5771226 (1998-06-01), Kaku
patent: 5796757 (1998-08-01), Czaja
patent: 5878098 (1999-03-01), Wang et al.
patent: 5883923 (1999-03-01), Shimazaki
patent: 5978414 (1999-11-01), Nara

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