Communication receiver using soft decision TCH/FACCH channel dis

Details Communication receiver using soft decision TCH/FACCH channel dis Communication receiver using soft decision TCH/FACCH channel dis

1997-02-06

1998-05-26

Chin, Wellington

Pulse or digital communications

Equalizers

375316, 34082503, H03D 100

Patent

active

057578516

ABSTRACT:
In a digital cellular communication system, a cell-site station transmits a frame containing a fixed number of burst signals each having stealing flag bits indicating that the frame is a traffic channel (TCH) or a fast associated control channel (FACCH). A mobile station receives delay-dispersed burst signals and equalizes their delay-dispersal effects to produce soft information so that each of the transmitted stealing flag bit is represented by a multibit value. A channel discriminator provides a total sum of all the multibit values of the received burst signals and compares the sum to a threshold value to identify the received frame as a FACCH if the sum is equal to or greater than the threshold value, or identify it as a TCH if the sum is smaller than the threshold value.

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Sampei, "Development of Japanese . . . Land Mobile Communications" IEICE Transactions vol. E74 No. 6 Jun. 1991.
European Digital Cellular Telecommunications System (phase 1); Channel coding (GSM 05.03), European Telecommunications Standards Institute., Mar. 1991.

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