Patent · US Expired

Transporting user data over A-Bis and A-interfaces within a mobile telecommunications network

US5892802A · kind A · utility

17Cited by

6References

26Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Stefan Jung · Hersbruck, DE
Peter Galyas · Bissenkamp, SE

Key dates

Filing date	Nov 14, 1996
Grant date	Apr 6, 1999
Priority date	—
Expiry date	Nov 14, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH04W88/181
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A synchronization frame is first formatted and transmitted in accordance with the Global System for Mobile (GSM) 08.60 specification. After an initial synchronization procedure is accomplished between a transcoder/rate adaptor unit (TRAU) and a particular base transceiver station (BTS) serving a mobile station, a modified GSM 08.60 frame is thereafter used to transport greater user data payload across the established communications link. The modified frame replaces the synchronization bits included in the GSM 08.60 formatted data frame with user data to increase data payload from the conventional 13.5 Kbit/s to a more desirable 14.4 Kbit/s without altering the standardized 16 Kbit/s transmission rate supported by the IWF and the BTS.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.