Telecommunications – Transmitter and receiver at separate stations
Patent
1993-02-05
1995-07-25
Urban, Edward F.
Telecommunications
Transmitter and receiver at separate stations
455 341, 455 561, 379 59, H04B 726, H04Q 736
Patent
active
054370540
ABSTRACT:
A method of assigning and sharing channels in a cellular communications system having a plurality of cells forming a plurality of cell clusters of size N. Each cell has at least one base station capable of sending and receiving signals and each cell has a plurality of adjacent cells. A plurality of distinct channels are allotted for use by the system and divided into N groups which are assigned among the N cells of each cell cluster so that each cell cluster has a substantially similar assignment of distinct channel groups. Each group of distinct channels is divided into a plurality of channel subgroups wherein each subgroup of channels of a cell substantially corresponds to an adjacent cell. The subgroups of channels are respectively designated for borrowing by cells adjacent to a corresponding cell. When all of the channels assigned to a cell are utilized, a channel can be borrowed at limited transmitted power, from a corresponding subgroup of channels of an adjacent cellular gateway. The borrowed channel is used with limited transmitted power so that co-channel interference caused by the channel borrowing is essentially the same as that without channel borrowing.
REFERENCES:
patent: 3898390 (1975-08-01), Wells et al.
patent: 4025853 (1977-05-01), Addeo
patent: 4128740 (1978-12-01), Graziano
patent: 4144411 (1979-03-01), Frenkiel
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4249181 (1981-02-01), Lee
patent: 4310722 (1982-01-01), Schaible
patent: 4355411 (1982-10-01), Reudink et al.
patent: 4384362 (1983-05-01), Leland
patent: 4613990 (1986-09-01), Halpern
patent: 4696027 (1987-09-01), Bonta
patent: 4759051 (1988-07-01), Han
patent: 4866788 (1989-09-01), Mouly et al.
patent: 4914651 (1990-04-01), Lusignan
patent: 5014342 (1991-05-01), Pudsey
patent: 5038399 (1991-08-01), Bruckert
patent: 5050234 (1991-09-01), Ohteru
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5067147 (1991-11-01), Lee
patent: 5073971 (1991-12-01), Schaeffer
patent: 5111534 (1992-05-01), Benner
patent: 5282222 (1994-01-01), Fattouche et al.
Yum, Tak-Shing and Wing Shing Wong, "Hot-Spot Traffic Relief in Cellular Systems", IEEE Transactions, pp. 1703-1709 (1992).
Zhang, Ming and Tak-Shing P. Yum, "Comparisons of Channel-Assignment Strategies in Cellular Mobile Telephone Systems", IEEE Transactions on Vehicular Technology, vol. 38, No. 4, pp. 211-215 (Nov. 1989).
Jiang Hua
Rappaport Stephen S.
The Research Foundation of State University of New York
Urban Edward F.
Wisler Mark D.
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