Mobile communication system using two channel assigning schemes

Details Mobile communication system using two channel assigning schemes Mobile communication system using two channel assigning schemes

1997-02-21

1999-03-23

Urban, Edward F.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455512, 455 63, H04Q 720

Patent

active

058872639

ABSTRACT:
A mobile communication system includes base stations, mobile stations, first and second channel assigning section, and a channel ratio changing section. The base stations are installed in correspondence with cells constituting a service area. Each mobile station performs communication with the base station through one channel selected from the channels classified into first and second groups. The first channel assigning section uses a channel segregation scheme of controlling the priority of a channel set in each of the base stations on the basis of carrier to interference ratios of a channel belonging to the first group, measured at both the mobile station and the base station, and selects/assigns one idle channel in the first group on the basis of the controlled priority. The second channel assigning section uses an ARP scheme of selecting/assigning one idle channel in the second group according to a priority common to all the cells on the basis of carrier to interference ratios of a channel belonging to the second group, measured at both the mobile station and the base station. The channel ratio changing section changes the ratio of the number of channels belonging to the first group to that of channels belonging to the second group on the basis of channel assignment results.

REFERENCES:
"Mobile Cellular Telecommunications Systems", McGraw-Hill Book, pp. 259 -261, 1989.
"Autonomous Reuse Partitioning in Cellular Systems", Conference Record of 42nd IEEE VTC, Feb. 1992, pp. 782 -785.
"Channel Segregation, a Distributed Adaptive Channel Allocation Scheme for Mobile Communication Systems", IEICE Transactions, vol. E 74, No. 6, Jun. 1991, pp. 1531 -1537.

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