Method for dividing traffic in a cellular radio network
AssigneeNokia Networks Oy
InventorsPetteri Hakalin, Jari Hulkkonen
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Abstract
The invention relates to a method for dividing traffic between cells and a cellular radio system comprising at least a base station (300) of a particular cell (304), at least one subscriber terminal (322, 324) communicating with the base station (300), and cells (306) surrounding the particular cell (304), and subscriber terminals (332, 334) communicating therewith, the cellular radio system being arranged to measure the amount of traffic and interference in the system, and to calculate a weighting value for each cell based on the network measurements. In the method of the invention the base station (300) of the particular cell is arranged to adjust the size of its coverage area on the basis of the weighting value of the cell (304).
Claims10
A method for dividing traffic between cells in a cellular radio network, the method comprising:
- calculating for each cell a weighting value based on network measurements, the interference caused by each cell to the surrounding cells and the amount of traffic of each cell;
- adjusting the size of each cell based on the weighting value calculated for the cell dynamically by changing the handover margin of the cell in relation to the surrounding cells,
- wherein the handover margin of the cell has a particular basic value, and the margin is changed with a correction factor depending on the amount of interference.
A cellular radio system comprising at least a base station of a particular cell, at least one subscriber terminal communicating with the base station, and cells surrounding the particular cell, and subscriber terminals communicating therewith, wherein
- the cellular radio system is arranged to measure the amount of traffic and interference in the system, and to calculate a weighting value for each cell based on the network measurements and depending on the interference caused by each cell to the neighboring cells,
- the base station of the particular cell is arranged to adjust the size of its coverage area based on the weighting value of the cell by dynamically changing the handover margin in relation to the surrounding cells, and
- the handover margin of the base station of the particular cell has a certain basic value and that the base station is arranged to adjust the margin with a correction factor depending on the amount of interference.
Dependencies are inferred from the claim text.