Fractional frequency reuse deployment method for wireless system

摘要

A wireless communications system is described, which comprises a plurality of base stations and a plurality of subscriber devices. Each of the base stations comprises at least one antenna for communicating with respective subscriber devices currently located within a geographical area of a wireless cell served by a respective base station, and wherein: the geographical area of the wireless cell comprises a geographical central area and a geographical edge area; more than a third of all transmission resources available to the serving base station are available for communicating with the subscriber devices located within the geographical edge area of the wireless cell; and at least one of the transmission resources available for communicating with each of the subscriber devices currently located within the geographical edge area of the wireless cell is other than any of the transmission resources available for communicating with subscriber devices currently located within geographical edge areas of wireless cells each having a geographical edge area that is geographically adjacent to the geographical edge area of the wireless cell at which the subscriber device is located.

主权项

1. A wireless communications system comprising:
a plurality of base stations including a serving base station; and a plurality of subscriber devices, wherein each of the plurality of said base stations comprises at least one antenna for communicating with respective subscriber devices currently located within a geographical area of a wireless cell served by a respective base station; the serving base station having more than a third of all transmission resources available to it allocated for communicating with the subscriber devices located within a geographical edge area of the wireless cell; and the serving base station having at least one of the transmission resources available for communicating with the subscriber devices currently located within said geographical edge area of the wireless cell being common with any of the transmission resources allocated for communicating with subscriber devices located within geographical edge areas of an adjacent wireless cell; whereby the common transmission resource used in the adjacent cell is selected to minimize interference at the edge of all wireless cells adjacent with the wireless cell of the serving base station; and wherein when one of the subscriber devices is about to move from the wireless cell to an adjacent wireless cell, the serving base station informs another base station serving said adjacent wireless cell or said another base station and the wireless device of at least one particular transmission resource to be used for conducting a handover procedure to a base station serving the adjacent wireless cell.