Patent ID: 7035644

Claim:
A radio channel assignment method for assigning radio channels for carrying out communications between a base station and a plurality of radio terminals in a radio zone of the base station, comprising the steps of: assigning at least one radio channel to a first radio terminal in said radio zone; determining the amount of communication data to be sent from said first radio terminal to said base station; when the amount of communication data is determined to be above a predetermined threshold representing acceptable data transmission capacity for the number of presently assigned radio channels, requesting of said base station an increase in the number of radio channels assigned to said first radio terminal; when the amount of communication data is determined to be below a predetermined threshold representing acceptable data transmission capacity for the number of presently assigned radio channels, requesting of said base station a decrease in the number of radio channels assigned to said first radio terminal; in response to a request for an increase in the number of radio channels assigned to said first radio terminal, determining whether a predetermined number of radio channels in said radio zone adjacent to the radio channel assigned to said first radio terminal are unassigned, and if so assigning said predetermined number of adjacent radio channels to said first radio terminal; if a predetermined number of radio channels in said radio zone adjacent to the radio channel assigned to said first radio terminal are not unassigned, reassigning adjacent radio channels presently assigned to other radio terminals of said plurality of radio terminals to said first radio terminal, and assigning said other radio terminals to other unassigned radio channels in said radio zone.