Code division multiple access systems using a queue for each...

Details Code division multiple access systems using a queue for each... Code division multiple access systems using a queue for each...

2007-07-31

2007-07-31

Kizou, Hassan (Department: 2616)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C370S350000

Reexamination Certificate

active

10178750

ABSTRACT:
A CDMA system includes first and second correlators, a delay buffer, a transmission-line correcting section, and a transmission-line estimating section. The delay buffer is supplied with the data for each symbol extracted from the first correlator to adjust a difference in timing at which the data is output from the first correlator, the difference being caused by a difference in spreading coefficient. The transmission-line correcting section is supplied with an output signal of the delay buffer. The estimating section is supplied with the data for each symbol extracted from the second correlator to obtain a transmission-line response from pilot information and supply transmission-line estimated value information to the transmission-line correcting section using the transmission-line response as an estimated value. The transmission-line correcting section makes a transmission-line correction to the information of the information channel based on the transmission-line estimated value information obtained by the transmission-line estimating section.

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