Telecommunications – Transmitter and receiver at separate stations – Single message via plural carrier wave transmission
Patent
1992-01-21
1994-01-18
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
Single message via plural carrier wave transmission
455 62, 455 63, 4556763, 379 61, H04B 1500
Patent
active
052806308
ABSTRACT:
A base station (21, 22, 23) in a radio communication system (20) comprises a channel allocator (62) for allocating communication channels in accordance with a fully distributed dynamic channel allocation method. The channel allocator accesses a Preferred Channel List (PCL) (64) to allocate the communication channels. The PCL ranks channels (116) in accordance with the occurrence of prior events on the channels (112), such as interrupted calls (122), blocked call setup requests (118), and calls successfully completed (106) and in regards to the mean quality margin (110) and the current channel quality (114). The channel allocator (62) allocates (140) the first available channel (128) in the PCL having a free timeslot (132) and with good current channel quality (136). Alternatively, the channel allocator (62) allocates communication channels in accordance with an optimal dynamic channel allocation method. A list of channels assigned to the base station is updated by removing channels (372) that are locally heavy loaded (366) and in poor quality (370) and by adding channels (390) if the channels are locally heavy loaded (384), and in good quality (394) for a period of time (392). Unassigned channels may be borrowed (388) if they are in good quality (382), are in a locally lightly loaded period (384), and have been idle for a predetermined period of time (386). The assigned channels of the base station (340) are allocated first (356, 360), with the borrowed channels being allocated (350) when no assigned channels are available (340).
REFERENCES:
patent: Re28577 (1975-10-01), Schmidt
patent: 5034993 (1991-07-01), Sasuta et al.
patent: 5044010 (1991-08-01), Frenkiel et al.
patent: 5093924 (1992-03-01), Toshiyuki et al.
patent: 5093927 (1992-03-01), Shanley
patent: 5148548 (1992-09-01), Meche et al.
Furuya and Akaiwa; Channel Segregation: A Distributed Adaptive Channel Allocation Scheme for Mobile Communication Systems; Oct., 1986; Second Nordic Seminar on Digital Land Mobile Radio Communications at Stockholm pp. 312-315.
Nettleton and Schloemer; A High Capacity Assignment Method for Cellular Mobile Telephone Systems; Jan., 1989; 1989 IEEE Vehicular Technology Conference; pp. 359-67.
Akaiwa; A Conceptual Design of Microcellular Radio Communication System; Apr. 1990; 1990 IEEE Vehicular Technology Conference; pp. 156-160.
Nettleton; Traffic Statistics in a Self-Organizing Cellular Telephone System; Apr., 1990; 1990 IEEE Vehicular Technology Conference; pp. 305-310.
Bernhardt; Time-Slot Management in Digital Portable Radio Systems; Feb., 1991; IEEE Transactions on Vehicular Technology; vol. 40, No. 1; pp. 261-271.
Chuang; Autonomous Adaptive Frequency Assignment for TDMA Portable Radio Systems; Aug., 1991; IEEE Transactions on Vehicular Technology; vol. 40, No. 3l pp. 627-635.
European Telecommunications Standards Institute; Radio Equipment and Systems Digital European Cordless Telecommunications Common Interface, Part 2: Medium Access Control Layer; Draft prETS 300 175-3; Aug., 1991; pp. 154-161.
Berry Thomas G.
Collopy Daniel R.
Eisenzopf Reinhard J.
Faile Andrew
Meles Pablo
LandOfFree
Method and apparatus for dynamic channel allocation 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 and apparatus for dynamic channel allocation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for dynamic channel allocation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1143034