Mobile communication system, radio controller, base station, and mobility control method
First Claim
1. A mobile communication system configured to control mobility of a mobile station from a predetermined cell to a neighboring cell of the predetermined cell on the basis of a path loss value based on a predetermined transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the predetermined cell and a reception power value of the radio signal in the mobile station, the system comprising:
- circuitry configured todetect a neighboring cell transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the neighboring cell; and
determine a power offset of the neighboring cell to be added to the predetermined transmission power value, based on a difference between the predetermined transmission power value and the neighboring cell transmission power value; and
a communication interface configured to notify the power offset to the mobile station, which calculates the path loss value by adding the power offset to the predetermined transmission power value.
1 Assignment
0 Petitions
Accused Products
Abstract
A radio controller 100 includes a transmission power acquisition unit 111 configured to acquire a neighboring cell transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the neighboring cell, an offset determination unit 115 configured to determine a power offset of the neighboring cell to be added to the predetermined transmission power value, based on a difference between the predetermined transmission power value and the neighboring cell transmission power value acquired by the transmission power acquisition unit, and an offset notification unit 117 configured to notify the power offset determined by the offset determination unit to the mobile station.
7 Citations
9 Claims
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1. A mobile communication system configured to control mobility of a mobile station from a predetermined cell to a neighboring cell of the predetermined cell on the basis of a path loss value based on a predetermined transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the predetermined cell and a reception power value of the radio signal in the mobile station, the system comprising:
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circuitry configured to detect a neighboring cell transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the neighboring cell; and determine a power offset of the neighboring cell to be added to the predetermined transmission power value, based on a difference between the predetermined transmission power value and the neighboring cell transmission power value; and a communication interface configured to notify the power offset to the mobile station, which calculates the path loss value by adding the power offset to the predetermined transmission power value. - View Dependent Claims (2, 3)
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4. A radio controller configured to control mobility of a mobile station from a predetermined cell to a neighboring cell of the predetermined cell on the basis of a path loss value based on a predetermined transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the predetermined cell and a reception power value of the radio signal in the mobile station, the radio controller comprising:
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circuitry configured to acquire a neighboring cell transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the neighboring cell; and determine a power offset of the neighboring cell to be added to the predetermined transmission power value, based on a difference between the predetermined transmission power value, based on a difference between the predetermined transmission power value and the neighboring cell transmission power value; and a communication interface configured to notify the power offset to the mobile station, which calculates the path loss value by adding the power offset to the predetermined transmission power value. - View Dependent Claims (5)
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6. A base station configured to control mobility of a mobile station from a predetermined cell to a neighboring cell of the predetermined cell on the basis of a path loss value based on a predetermined transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the predetermined cell and a reception power value of the radio signal in the mobile station, the base station comprising:
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circuitry configured to detect a neighboring cell transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the neighboring cell; and determine a power offset of the neighboring cell to be added to the predetermined transmission power value, based on a difference between the predetermined transmission power value and the neighboring cell transmission power value; and a communication interface configured to notify the power offset determined by the offset determination unit to the mobile station, which calculates the path loss value by adding the power offset to the predetermined transmission power value. - View Dependent Claims (7)
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8. A mobility control method for controlling mobility of a mobile station from a predetermined cell to a neighboring cell of the predetermined cell on the basis of a path loss value based on a predetermined transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the predetermined cell and a reception power value of the radio signal in the mobile station, the method comprising the steps of:
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detecting a neighboring cell transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the neighboring cell; determining a power offset of the neighboring cell to be added to the predetermined transmission power value, based on a difference between the predetermined transmission power value and the detected neighboring cell transmission power value; and notifying the determined power offset to the mobile station, which calculates the path loss value by adding the power offset to the predetermined transmission power value. - View Dependent Claims (9)
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Specification