New USF codes for RT-EGPRS systems

Author

Wu, Jian Jun ; Demetrescu, C. ; Foster, G.

Author_Institution

GSD Appl. Res., Motorola, Swindon, UK

Volume

3

fYear

2001

fDate

2001

Firstpage

2239

Abstract

In standard GPRS/EGPRS, an RLC/MAC block is interleaved over four TDMA bursts over four consecutive time frames, and the uplink state flag (USF) field is consequently interleaved over four TDMA bursts. This leads to a 20ms USF field decoding delay due to the fact that the USF cannot be decoded until all four TDMA bursts have been received. To reduce this USF decoding delay, a method to transmit the USF with a short interleaving depth over an EDGE system using a new set of USF codes is proposed. These new USF codes compensate for the loss introduced by a reduced interleaving depth for the USF

Keywords

cellular radio; channel coding; decoding; delays; digital radio; interleaved codes; packet radio networks; time division multiple access; EDGE system; Enhanced Data rate for GSM Evolution; RT-EGPRS systems; TDMA bursts; USF codes; decoding delay; interleaving; interleaving depth; uplink state flag; 3G mobile communication; Decoding; Delay; GSM; Ground penetrating radar; Interleaved codes; Licenses; Mobile communication; Proposals; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.945094

Filename

945094