RADIO COMMUNICATION SYSTEM, SELF-OPTIMIZING SYSTEM, RADIO BASE STATION, AND RADIO PARAMETER SETTING METHOD
First Claim
1. A radio communication system comprising:
- a radio base station that manages a cell, mobile terminals that are connected to the cell and measures radio channel quality of the cell and radio channel quality of specific neighbor cells of neighbor cells that are in the vicinity of the cell, and a parameter setting unit that sets a radio parameter on said radio base station, whereinsaid parameter setting unit comprises;
an update value calculation section that calculates an update value of a determining factor of the radio parameter based on communication traffic statistics information of the cell and the neighbor cells and on radio channel quality information that indicates radio channel quality measured by said mobile terminals;
a reliability evaluation section that evaluates the reliability of the update value of the factor calculated by said update value calculation section;
an update determination section that determines whether or not to apply the update value of the factor to said radio base station, based on the evaluation result by said reliability evaluation section; and
a radio parameter updating section that sets the radio parameter determined by the update value of the factor in said radio base station when a determination is made that the update value of the factor is to be applied to said radio base station.
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Accused Products
Abstract
The present invention provides a self-optimizing system for setting a radio parameter on a radio base station that manages a cell, including an update value calculation section that calculates an update value of a determining factor of the radio parameter based on traffic statistics information and on radio channel quality information that indicates radio channel quality of the cell and of a specific neighbor cell of the neighbor cells, a reliability evaluation section that evaluates reliability of the calculated update value of the determining factor, an update determination section that determines whether or not to apply the update value of the factor to the radio base station, and a radio parameter updating section that sets the radio parameter determined by the update value of the factor on the radio base station when the update value of the factor is determined to be applied to the radio base station.
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Citations
24 Claims
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1. A radio communication system comprising:
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a radio base station that manages a cell, mobile terminals that are connected to the cell and measures radio channel quality of the cell and radio channel quality of specific neighbor cells of neighbor cells that are in the vicinity of the cell, and a parameter setting unit that sets a radio parameter on said radio base station, wherein said parameter setting unit comprises; an update value calculation section that calculates an update value of a determining factor of the radio parameter based on communication traffic statistics information of the cell and the neighbor cells and on radio channel quality information that indicates radio channel quality measured by said mobile terminals; a reliability evaluation section that evaluates the reliability of the update value of the factor calculated by said update value calculation section; an update determination section that determines whether or not to apply the update value of the factor to said radio base station, based on the evaluation result by said reliability evaluation section; and a radio parameter updating section that sets the radio parameter determined by the update value of the factor in said radio base station when a determination is made that the update value of the factor is to be applied to said radio base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. (canceled)
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22. A parameter setting apparatus for setting a radio parameter on a radio base station that manages a cell, comprising:
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an update value calculation section that calculates an update value of a determining factor of the radio parameter based on traffic statistics information of the cell and neighbor cells that are in the vicinity of the cell and on radio channel quality information that indicates radio channel quality of the cell and radio channel quality of specific neighbor cell of the neighbor cells, where the radio channel quality is measured by mobile terminals connected to the cell; a reliability evaluation section that evaluates reliability of the update value of the factor calculated by said update value calculation section; an update determination section that determines whether or not to apply the update value of the factor to said radio base station, based on an evaluation result by said reliability evaluation section; and a radio parameter updating section that sets the radio parameter determined by the update value of the factor in said radio base station when a determination is made that the update value of the factor is to be applied to said radio base station.
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23. A radio base station for managing a cell and setting a radio parameter of the radio base station, comprising:
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an update value calculation section that calculates an update value of a determining factor of the radio parameter based on traffic statistics information of the cell and neighbor cells that are in the vicinity of the cell and on radio channel quality information that indicates radio channel quality of the cell and radio channel quality of specific neighbor cell of the neighbor cells, where the radio channel quality is measured by mobile terminals connected to the cell; a reliability evaluation section that evaluates reliability of the update value of the factor calculated by said update value calculation section; an update determination section that determines whether or not to apply the update value of the factor to the radio base station, based on an evaluation result by said reliability evaluation section; and a radio parameter updating section that sets the radio parameter determined by the update value of the factor in the radio base station when a determination is made that the update value of the factor is to be applied to said radio base station.
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24. A radio parameter setting method that is applied to a parameter setting apparatus for setting a radio parameter on a radio base station that manages a cell, the radio parameter setting method comprising:
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calculating an update value of a determining factor of the radio parameter based on traffic statistics information of the cell and neighbor cells that are in the vicinity of the cell and on radio channel quality information that indicates radio channel quality of the cell and radio channel quality of specific neighbor cell of the neighbor cells, where the radio channel quality is measured by mobile terminals connected to the cell; evaluating reliability of the calculated update value of the determining factor; determining whether or not to apply the update value of the factor to said radio base station, based on an evaluation result; and setting the radio parameter determined by the update value of the factor on said radio base station when a determination is made that the update value of the factor is to be applied to said radio base station.
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Specification