Method and apparatus for reuse of adaptive partial frequency in a cellular mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsDong-Hee Kim, Jae-Chon Yu
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Abstract
Disclosed is an adaptive partial frequency reuse method and system in a cellular mobile communication system. The adaptive partial frequency method includes the steps of: receiving interference feedback information transmitted from at least one terminal; determining if there is a terminal located in a cell boundary, based on the received interference feedback information; when there is the terminal located in the cell boundary, dividing the frequency band into multiple frequency sub-bands, and allocating different power to the respective multiple frequency sub-bands for each of the at least one base station; and providing data service to the terminal by using the power allocated the respective frequency sub-bands.
Claims8
An adaptive partial frequency reuse method in a mobile communication system including at least one base station using the same frequency band and a central controller for coordinately controlling the at least one base station, the adaptive partial frequency reuse method comprising the steps of:
- receiving interference feedback information transmitted from at least one terminal;
- determining if there is a terminal located in a cell boundary, based on the received interference feedback information;
- dividing, when there is the terminal located in the cell boundary, the frequency band into multiple frequency sub-bands, and allocating different power to the respective multiple frequency sub-bands for each of the at least one base station;
- allocating, when there is no terminal located in the cell boundary, a same power to the multiple frequency sub-bands;
- and
- providing data service to the terminal by using the power allocated to the respective frequency sub-bands.
An adaptive partial frequency reuse system in a mobile communication system, the adaptive partial frequency reuse system comprising:
- at least one terminal for measuring interference from a serving cell and neighbor cells, and transmitting interference feedback information to a corresponding base station of at least one base station;
- the at least one base station for collecting the interference feedback information transmitted from terminals located in a corresponding cell, and transmitting the collected interference feedback information to a central controller, the at least one base station using the same frequency band;
- and
- the central controller for determining if there is a terminal located in a cell boundary, based on the received interference feedback information, and controlling each of the at least one base station to divide the frequency band into multiple frequency sub-bands, allocate different power to the respective multiple frequency sub-bands thereof when there is the terminal located in the cell boundary, and allocate a same power to the multiple frequency sub-bands when there is no terminal located in the cell boundary.
Dependencies are inferred from the claim text.