Wireless communication system, base station, radio resource management method, and control program of base station
First Claim
1. A wireless communication system comprising a first base station that performs wireless communication with a mobile station,wherein the first base station receives an incoming radio signal, estimates a penetration loss of the radio signal caused by a structure located between a radio signal transmission source of the radio signal and the first base station, and performs radio resource management based on the estimated penetration loss of the radio signal, wherein the estimated penetration loss is a loss factor corresponding to a part of a total path loss between the radio signal transmission source and the first base station;
- wherein the radio signal transmission source is an apparatus of one of a plurality of artificial satellites constituting a positioning system; and
wherein the radio signal is a positioning signal transmitted from the one of the plurality of artificial satellites.
1 Assignment
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Accused Products
Abstract
To provide appropriate communication quality inside a building regardless of the building penetration loss of the building in which a femto base station is installed while suppressing the interference caused by radio waves leaked outside the building, a femto base station 4 receives a radio signal that passes through a structure and arrives at the installation place of the femto base station 4 (e.g., radio signal transmitted from a Global Positioning System) and estimates the penetration loss L of the structure based on the receiving state of the radio signal. Further, the femto base station 4 performs radio resource management based on an estimation result of the penetration loss L, and communicates with a mobile station 7-2.
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Citations
30 Claims
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1. A wireless communication system comprising a first base station that performs wireless communication with a mobile station,
wherein the first base station receives an incoming radio signal, estimates a penetration loss of the radio signal caused by a structure located between a radio signal transmission source of the radio signal and the first base station, and performs radio resource management based on the estimated penetration loss of the radio signal, wherein the estimated penetration loss is a loss factor corresponding to a part of a total path loss between the radio signal transmission source and the first base station; -
wherein the radio signal transmission source is an apparatus of one of a plurality of artificial satellites constituting a positioning system; and wherein the radio signal is a positioning signal transmitted from the one of the plurality of artificial satellites. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A base station that is used in a wireless communication system and performs wireless communication with a mobile station, comprising:
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a reception unit being configured to receive an incoming radio signal comprising a positioning signal transmitted by a radio signal transmission source which is an apparatus of one of a plurality of artificial satellites constituting a positioning system; a radio network control unit being configured to estimate a penetration loss of the radio signal, received by the reception unit, caused by a structure located between the radio signal transmission source of the radio signal and the base station and to perform radio resource management based on the estimated penetration loss of the radio signal received by the reception unit, wherein the estimated penetration loss is a loss factor corresponding to a part of a total path loss between the radio signal transmission source and the base station; and a wireless transmission reception unit being configured to communicate with the mobile station according to control by the radio network control unit. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A radio resource management method used in a wireless communication system and performed by a base station that performs wireless communication with a mobile station, the method comprising:
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receiving a radio signal arriving at an installation place of the base station, the radio signal comprising a positioning signal transmitted by a radio signal transmission source which is an apparatus of one of a plurality of artificial satellites constituting a positioning system; estimating a penetration loss of the radio signal caused by a structure located between the radio signal transmission source of the radio signal and the base station, wherein the estimated penetration loss is a loss factor corresponding to a part of a total path loss between the radio signal transmission source and the base station; performing radio resource management based on the estimated penetration loss of the radio signal; and communicating with the mobile station based on a wireless parameter determined by the radio resource management. - View Dependent Claims (23, 24, 25, 26)
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27. A non-transitory computer readable media storing a base station control program that causes a computer to execute control processing for a base station used in a wireless communication system, the base station comprising a wireless transmission reception unit that performs wireless communication with a mobile station, and a reception unit that receives a radio signal arriving at an installation place of the base station, the control processing comprising:
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a process of causing the reception unit to receive the radio signal; a process of estimating a penetration loss of the radio signal caused by a structure located between a radio signal transmission source of the radio signal and the base station, wherein the estimated penetration loss is a loss factor corresponding to a part of a total loss between the radio signal transmission source and the base station; a process of performing radio resource management based on the estimated penetration loss of the radio signal received by the reception unit; and a process of causing the wireless transmission reception unit to execute communication with the mobile station based on a wireless parameter determined by the radio resource management; wherein the radio signal transmission source is an apparatus of one of a plurality of artificial satellites constituting a positioning system; and wherein the radio signal is a positioning signal transmitted from the one of the plurality of artificial satellites.
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28. A wireless communication system comprising a first base station that performs wireless communication with a mobile station, wherein
the first base station receives a radio signal that passes through a structure and arrives at an installation place of the first base station, estimates a penetration loss of the radio signal caused by the structure located between a radio signal transmission source of the radio signal and the first base station, performs radio resource management based on the estimated penetration loss of the radio signal so that a leak power that is leaked from at least one of the first base station and the mobile station to an opposite side to the installation place through the structure becomes substantially invariant, and communicates with the mobile station, wherein the estimated penetration loss is a loss factor corresponding to a past of a total path loss between the radio signal transmission source and the first base station; -
wherein the radio signal transmission source is an apparatus of one of a plurality of artificial satellites constituting a positioning system; and wherein the radio signal is a positioning signal transmitted from the one of the plurality of artificial satellites.
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29. A base station that is used in a wireless communication system and performs wireless communication with a mobile station, comprising:
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a reception unit which is configured to receive an incoming radio signal that passes through a structure and arrives at an installation place of the base station; a radio network control unit which is configured to estimate a penetration loss of the radio signal caused by the structure located between a radio signal transmission source of the radio signal and the base station and to perform radio resource management based on the estimated penetration loss of the radio signal so that a leak power that is leaked from at least one of the base station and the mobile station to an opposite side to the installation place through the structure becomes substantially invariant, wherein the estimated penetration loss is a loss factor corresponding to a part of a total path loss between the radio signal transmission source and the base station; and a wireless transmission reception unit which is configured to communicate with the mobile station according to control by the radio network control unit; wherein the radio signal transmission source is an apparatus of one of a plurality of artificial satellites constituting a positioning system; and wherein the radio signal is a positioning signal transmitted from the one of the plurality of artificial satellites.
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30. A radio resource management method used in a wireless communication system and performed by a base station that performs wireless communication with a mobile station, the method comprising:
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receiving a radio signal arriving at an installation place of the base station; estimating a penetration loss of the radio signal caused by the structure located between a radio signal transmission source of the radio signal and the base station, wherein the estimated penetration loss is a loss factor corresponding to a part of a total path loss between the radio signal transmission source and the base station; performing radio resource management based on the estimated penetration loss of the radio signal so that a leak power that is leaked from at least one of the base station and the mobile station to an opposite side to the installation place through the structure becomes substantially invariant; and performing communication with the mobile station based on a wireless parameter determined by the radio resource management; wherein the radio signal transmission source is an apparatus of one of a plurality of artificial satellites constituting a positioning system; and wherein the radio signal is a positioning signal transmitted from the one of the plurality of artificial satellites.
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Specification