Telecommunications – Transmitter and receiver at separate stations
Patent
1995-07-25
1998-02-24
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
455 341, 455 561, 379 58, H04Q 700, H04Q 900
Patent
active
057220433
ABSTRACT:
A method of assigning and sharing carriers 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 carriers 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 carrier groups. Each group of distinct carriers is divided into a plurality of carrier subgroups wherein each subgroup of carriers of a cell substantially corresponds to an adjacent cell. The subgroups of carriers are respectively designated for borrowing by cells adjacent to a corresponding cell. When all of the carriers assigned to a cell are utilized, a carrier can be borrowed at limited transmitted power, from a corresponding subgroup of carriers of an adjacent cellular gateway. The borrowed carrier is used with limited transmitted power so that co-channel interference caused by the carrier borrowing is essentially the same as that without carrier borrowing. A method is also provided for assigning and sharing carriers and prioritizing the order of return of the carriers from a borrowing cell to a lending cell.
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: 5134709 (1992-07-01), Bi et al.
patent: 5168575 (1992-12-01), Cizek et al.
patent: 5233643 (1993-08-01), Naeini et al.
patent: 5239676 (1993-08-01), Strawczynski et al.
patent: 5247699 (1993-09-01), Hartman
patent: 5280630 (1994-01-01), Wang
patent: 5282222 (1994-01-01), Fattouche et al.
patent: 5353332 (1994-10-01), Raith et al.
patent: 5437054 (1995-07-01), Rappaport et al.
patent: 5448754 (1995-09-01), Ho et al.
patent: 5513379 (1996-04-01), Benveniste et al.
IEEE Transactions on Vehicular Technology, vol. 38, No. 4, "Comparisons of Channel-Assignment Strategies in Cellular Mobile Telephone Systems", Nov. 1989, pp. 211-215.
IEEE, "Hot-Spot Traffic Relief in Cellular Systems", pp. 1703-1709 (1992).
IEEE, "An Agressive Dynamic Channel Assignment Strategy for a Microcellular Environment", pp. 1027-1038 (1994).
Jiang Hua
Rappaport Stephen S.
Armstrong Darnell R.
Eisenzopf Reinhard J.
The Research Foundation of State University of New York
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