Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-10-10
1999-08-31
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455452, 455 63, 455427, H04Q 736, H04B 7185
Patent
active
059466251
ABSTRACT:
A fractional loading scheme is used to improve the spectral efficiency of a cellular system, and therefore increase the number of users that the system can support. The fractional loading scheme allows only a fraction of the total number of available communication channels within each cell to be used simultaneously. Thus, each cell is deliberately underloaded to operate at less than its full capacity. The underloading of the individual cells reduces the spectral efficiency within each cell. However, the underloading of each cell means that there will be fewer interfering users at any given time so that the co-channel interference is reduced. This reduction in co-channel interference allows the reuse distance between co-channel cells to be reduced thereby increasing the reuse of frequencies throughout the system resulting in an increase in spectral efficiency in the system as a whole.
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"CIR Based Dynamic Channel Allocation Schemes and Handover Prioritisation for Mobile Satellite Systems," Branko Bjelajac, IEEE, May 1996, pp. 948-952.
"Usage of Adaptive Arrays to Solve Resource Planning Problems," M. Frullone et al., IEEE May 1996, pp. 527-530.
Hassan Amer
Ramesh Rajaram
Reinhold Stanley L.
Eisenzopf Reinhard J.
Ericsson Inc.
Kincaid Lester G.
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