Title :
Narrow-band FM transmission in land mobile radio
Author :
Hiroike, Akira ; Fujii, Teruya ; Horikawa, Izumi
Author_Institution :
Div. of Mobile Commun., NTT, Kanagawa, Japan
Abstract :
The authors describe the narrow-band mobile radio transmission technologies used in NTT´s High-Capacity Land Mobile Communications System. These include 12.5 kHz-band analog FM transmission for voice; 2400 b/s data transmission for access and paging control; 100 b/s data transmission for channel associated control; and enhanced cellular technologies such as diversity reception, adaptive transmitter power control, interference evasive intrazone handoff, excess level detection/interzone handoff, and error control schemes in common control channels. Field trial data on power control and handoff are also presented
Keywords :
cellular radio; data communication systems; digital radio systems; diversity reception; frequency modulation; mobile radio systems; 100 bit/s; 12.5 kHz; 2400 bit/s; NTT´s High-Capacity Land Mobile Communications System; adaptive transmitter power control; analog FM transmission; channel associated control; common control channels; data transmission; diversity reception; enhanced cellular technologies; error control schemes; excess level detection/interzone handoff; interference evasive intrazone handoff; land mobile radio; narrowband FM transmission; paging control; Adaptive control; Communication system control; Data communication; Diversity reception; Land mobile radio; Mobile communication; Narrowband; Power control; Programmable control; Radio transmitters;
Conference_Titel :
Vehicular Technology Conference, 1989, IEEE 39th
Conference_Location :
San Francisco, CA
DOI :
10.1109/VETEC.1989.40098
