Frame Synchronization method

Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

370504, 370510, 455502, 375356, H04J 306

Patent

active

057870780

ABSTRACT:
The problem of pulse frame synchronization occurs for example in a telecommunications system with cordless terminals operating according to the DECT standard. To establish a radio connection between base station and a cordless terminal, the base station scans its radio cell in sequence with the available ten high-frequency carriers in the DECT frame rhythm. In a multiple cell environment, the synchronization of all base stations belonging to a cordless telecommunications installation is necessary, to enable all base stations to scan the same frequency at the same time. This is achieved by blanking the DECT multi-frame synchronization pulses. The pulse gap is evaluated by error detection circuits which are present anyway, and used for the PSCN Primary receiver Scan Number-synchronization.

REFERENCES:
patent: 4638478 (1987-01-01), Hatabe
patent: 5175734 (1992-12-01), Sarkoezi
patent: 5177740 (1993-01-01), Toy et al
patent: 5243653 (1993-09-01), Malek et al.
patent: 5274628 (1993-12-01), Thaller et al.
patent: 5375254 (1994-12-01), Owen
patent: 5418838 (1995-05-01), Havermans et al.
patent: 5448570 (1995-09-01), Toda et al.
Mulder, R.J.: DECT, a universal cordless access system, In: Philips Telecommunication Review, vol. 49, No. 3. Sep. 1991, pp. 68-73.
Forer, Josef: Kleindl, Gunther: Schnurlose Telefone und ihre Evolution zum personlichen Kommunikationssystem In: ntz, Bd. 43, 1990, H.r, pp.214-217.
Tuttlebee, Walter, H.W.: Cordless Personal Communications, In: IEEE Communications Magazine, Dec. 1992, pp. 42-53.
Neuner, Hermann: u.a. : Synchronisation einer Mobilstation im GMS-System DMCS 900 In: Frequenz 47, 1993, pp. 66-72.
Pilger, Ulrich: Sturktur der DECT-standards. In: Nachrich-tentech., Elektron, Berlin 42, 1992, 1, pp.23-29.
Patent Abstracts of Japan, vol. 013 No. 109 (E-727), 15 Mar. 1989 & JP-A-63 278436 (NEC Corp) 16 Nov. 1988.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Frame Synchronization method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frame Synchronization method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frame Synchronization method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-28683

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.