Method of transmitting signaling messages in a mobile...

Details Method of transmitting signaling messages in a mobile... Method of transmitting signaling messages in a mobile...

2007-07-03

2007-07-03

Chung, Phung My (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S758000, C714S701000, C714S786000, C370S528000

Reexamination Certificate

active

09845823

ABSTRACT:
A method of transmitting inband signaling messages in a mobile telecommunications network using SACCH burst. In order to avoid puncturing a fixed amount of bits out of every SACCH burst for inband signaling, the 40-bit FIRE code of the SACCH is replaced with a shorter CRC code, thereby creating unused bits for carrying the messages. After the SACCH block is shortened, a plurality of dummy bits are inserted into the shortened block prior to applying a ½ convolutional code to obtain the coded block. The coded block is further interleaved, reordered and mapped into 4 SACCH bursts. The dummy bits in each SACCH block are then replaced by the inband signaling for transmission.

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3GPP TS 43.051 V5.1.0 (Apr. 2001) 3rdGeneration Partnership Project; Technical Specification Group GSM/EDGE Radio Access Network; Overall description—Stage 2; (Release 5).

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