Multiplex communications – Wide area network – Packet switching
Patent
1993-09-15
1995-08-15
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
455 333, H04J 316
Patent
active
054426359
ABSTRACT:
A method for dividing a frame structure for a mobile telephone system which operates in half-duplex, i.e. in which the transmission and reception of signals in a mobile takes place within mutually separate time-slots (TS0 and TM0 respectively). Each frame includes three time-slots, each intended for transmission and reception. According to the method, the frame structure is divided so that transmission (TX) first takes place in a transmission time-slot (TS0). Reception (RX) then takes places in a reception time-slot (TM0) which is separate from the transmission time-slot (TS0). Subsequent to reception (RX), the frame structure includes an idle time (t.sub.1) which remains until further transmission (TX) takes place in the next-following frame. The method enables the frequency synthesizer (FM) of the mobile in the reception direction to be set to a channel (f.sub.x) different to the reception channel (f.sub.m) and then to be reset accurately to the reception channel (f.sub.m).
REFERENCES:
patent: 2199179 (1990-04-01), Koch
patent: 3443228 (1969-05-01), Brenner et al.
patent: 3532988 (1970-10-01), Magnuski
patent: 3619788 (1971-11-01), Giles, Jr.
patent: 3983492 (1976-09-01), Fisher et al.
patent: 4069455 (1978-01-01), Sherman, Jr.
patent: 4123715 (1978-10-01), Fathauer
patent: 4190803 (1980-02-01), Imamura
patent: 4430753 (1984-02-01), Shiratani
patent: 4470140 (1984-09-01), Coffey
patent: 4476582 (1984-10-01), Strauss et al.
patent: 4513412 (1985-04-01), Cox
patent: 4641304 (1987-02-01), Raychaudhuri
patent: 4688213 (1987-08-01), Raychaudhuri
patent: 4736371 (1988-04-01), Tejima et al.
patent: 4815073 (1989-03-01), Grauel et al.
patent: 4817089 (1989-03-01), Pameth et al.
patent: 4851820 (1989-07-01), Fernandez
patent: 4910791 (1990-03-01), Dickinson et al.
patent: 4914649 (1990-04-01), Schoandeman et al.
patent: 4949335 (1990-08-01), Moore
patent: 4949395 (1990-08-01), Rydbeck
patent: 4972506 (1990-11-01), Uddenfeldt
patent: 5070536 (1991-12-01), Mahany et al.
patent: 5128959 (1992-07-01), Bruckert
TIA Technical Report, "Digital Voice Channel Structure Assuming No Duplex Filter," TIA Technical Subcommittee, TR-45.3 Digital Cellular Standards, Jul. 25-27, 1989, Calgary, pp. 1-3.
Dornstetter et al., "Cellular Efficiency With Slow Frequency Hopping: Analysis of the Digital SFH900 Mobile System," IEEE J. on Selected Areas Of Communication, vol. SAC-5, No. 5, Jun. 1987, pp. 835-848.
"Multiplexing and Muliple Access on the Radio Path," CEPT/CCH GSM Recommendation: 05.02/1, Version 3.2.0, Oct. 12, 1988, pp. 1-33.
Safourek Benedict V.
Telefonaktiebolaget LM Ericsson
Ton Dang
LandOfFree
Method for dividing a frame structure in a mobile station does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for dividing a frame structure in a mobile station, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for dividing a frame structure in a mobile station will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2188517