Appeal No. 2003-0469
Application No. 09/317,480
set up in such a manner that the cell is broken up into sectors of coverage. The
cells/base stations and each of their sectors are assigned a group of radio
frequencies through which they communicate with users (i.e., cell phones). The
same frequency groups may be used by many cells in the communications
system, however frequencies are assigned to base stations such that adjacent
cells do not use the same frequency group. The invention allows for dynamically
allocating frequencies to the sectors in the cell based upon the utilization of the
cell.
Claim 1 is representative of the invention.
1. A method for allocating channels in a cell of a cellular communication
system having a plurality of cells comprising:
a. dividing the cell into a plurality of sectors;
b. subdividing channels allocated to the cell into frequency subgroups;
c. assigning the frequency subgroups to respective sectors in the cell;
d. allocating channels within each sector to users in the corresponding
sector;
e. when the number of channels allocated in a first sector of the cell
reaches a predetermined threshold, reassigning an unused channel
from a second sector in the cell to the first sector.
2
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