Apparatus and method for adding and removing a base station from a cellular communications system
First Claim
1. An apparatus for adding a new base station to a network of existing base stations, said network of existing base stations including a plurality of adjacent base stations adjacent to said new base station, said new base station having an artificial noise receive power level and a new transmit power level, said new base station defining a forward link coverage area and a reverse link coverage area and said plurality of adjacent base stations each defining an effective forward link coverage area and an effective reverse link coverage area, said apparatus comprising:
- a controller for controlling attenuation levels;
a first attenuator having a first attenuation level for setting said artificial noise receive power level to a power setting in response to said controller setting said first attenuation level to a first attenuation setting, and for decreasing said artificial noise receive power level from said power setting in response to said controller decreasing said first attenuation level to a second attenuation setting, thereby expanding said reverse link coverage area of said new base station; and
a second attenuator for controlling said new transmit power level and for increasing said new transmit power level, thereby expanding said forward link coverage area of said new base station to match said expanded reverse link coverage area.
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Accused Products
Abstract
An apparatus and method for adding and removing a target base station from a network of base stations, which includes base stations adjacent the target base station. The apparatus is comprised of two attenuators: a first for setting an artificial receive noise power level and a second for setting a transmit level. The transmit level determines the forward link coverage area of the base station. The artificial noise level sets the reverse link coverage area of the base station. When a base station is added, initially the transmit power is low and the artificial receive noise power is high such that the forward and reverse link coverage areas are collocated in close proximity to the base station. As the base station blossoms into full operation, the artificial receive noise power is decreased and the transmit level is increased such that the two coverage areas of the base station remain balanced as the coverage areas expand. When a base station is to be removed from a system, the same attenuators are used to wilt the two coverage areas in unison as the power level transmitted from the base station decreases.
94 Citations
24 Claims
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1. An apparatus for adding a new base station to a network of existing base stations, said network of existing base stations including a plurality of adjacent base stations adjacent to said new base station, said new base station having an artificial noise receive power level and a new transmit power level, said new base station defining a forward link coverage area and a reverse link coverage area and said plurality of adjacent base stations each defining an effective forward link coverage area and an effective reverse link coverage area, said apparatus comprising:
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a controller for controlling attenuation levels; a first attenuator having a first attenuation level for setting said artificial noise receive power level to a power setting in response to said controller setting said first attenuation level to a first attenuation setting, and for decreasing said artificial noise receive power level from said power setting in response to said controller decreasing said first attenuation level to a second attenuation setting, thereby expanding said reverse link coverage area of said new base station; and a second attenuator for controlling said new transmit power level and for increasing said new transmit power level, thereby expanding said forward link coverage area of said new base station to match said expanded reverse link coverage area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for removing an operating base station from a network of existing base stations, said network of existing base stations including a plurality of adjacent base stations adjacent said operating base station, said operating base station having an artificial noise receive power level and an operating transmit power level, said operating base station defining a forward link coverage area and a reverse link coverage area and said plurality of adjacent base stations each defining an effective forward link coverage area and an effective reverse link coverage area, said apparatus comprising:
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a controller for controlling attenuation levels; a first attenuator having a first attenuation level for increasing said artificial noise receive power level in response to said controller increasing said first attenuation level, thereby contracting said reverse link coverage area of said operating base station; and a second attenuator for decreasing said operating transmit power level, thereby contracting said forward link coverage area of said operating base station. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for adding a new base station to a network of existing base stations, said network of existing base stations including a plurality of adjacent base stations adjacent said new base station, said new base station having an artificial noise receive power level and a new transmit power level, said new base station defining a forward link coverage area and a reverse link coverage area and said plurality of adjacent base stations each defining an effective forward link coverage area and an effective reverse link coverage area, said method comprising:
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first setting a first attenuation level to a first attenuation setting; second setting said artificial noise receive power level to a power setting in response to setting said first attenuation level to said first attenuation setting; first decreasing said first attenuation level from said first attenuation setting and increasing said new transmit power level, thereby expanding said forward link coverage area of said new base station; and second decreasing said artificial noise receive power level from said power setting in response to decreasing said first attenuation level, thereby expanding said reverse link coverage area of said new base station. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification