Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1995-10-18
1999-06-08
Nguyen, Chau
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370349, 370468, 370522, H04J 317
Patent
active
059109491
ABSTRACT:
A method is disclosed for improving the efficiency of the packet data channel by providing means for interrupting tranmsissions so as to allow a communication system to send a short message to a different mobile station. The packet channel feedback information includes several flags: Busy-Reserved/Idle (BRI); Received/Not Received (R/N); Partial Echo (PE); and Partial Echo Qualifier (PEQ). The PEQ allows the communication system to interrupt the transmission to one mobile station to send a short message to another mobile station. By setting the PEQ to various values, a mobile station can determine whether subchannel ownership has been temporarily interrupted and reassigned to another station.
REFERENCES:
patent: 4887265 (1989-12-01), Felix
patent: 4916691 (1990-04-01), Goodman
patent: 5175867 (1992-12-01), Wejke et al.
patent: 5353332 (1994-10-01), Raith et al.
patent: 5404355 (1995-04-01), Raith
"Idle-Signal Casting Multiple Access with Partial Echo (ICMA-PE) For Mobile Packet Communications", N. Umeda et al., Electronics & Communications in Japan, Part I--Communications, vol. 77, No. 4, Apr. 1, 1994, New York, pp. 92-102.
"Aggressive Packet Reservation Multiple Access Using Signatures", Q. Guo et al., International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC' 94, vol. 4, Sep. 18, 1994, Amsterdam (NL), pp. 1247-1253.
"Cellular System Dual-Mode Mobile Station--Base Station Compatibility Standard", EIA/TIA Interim Standard, IS-54-B, pertinent pages only, Apr. 1992.
K. Felix, "Packet Switching in Digital Cellular Systems", Proc. 38th IEEE Vehicular Technology Conf, pp. 414-418, Jun. 1988.
P. Decker et al., "A General Packet Radio Proposed for GSM", GSM in a Future Competitive Environment, Helsinki, Finland, pp. 1-20, Oct. 13, 1993.
P. Decker, "Packet Radio in GSM", European Telecommunications Standards Institute (ETSI), T Doc SMG 4 58/93, pp. 1-13 (odd pages only), Feb. 12, 1993.
J. Hamalainen et al., "Packet Data Over GSM Network", T Doc SMG 1 238/93, ETSI, pp. 1-8, Sep. 28, 1993.
Bilstrom Lars
Diachina John
Nguyen Chau
Telefonaktiebolaget LM Ericsson
LandOfFree
Packet channel feedback does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Packet channel feedback, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Packet channel feedback will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1686823