METHOD AND SYSTEM FOR REDUCING UPLINK NOISE IN WIRELESS COMMUNICATION SYSTEMS
First Claim
1. A method for reducing uplink noise in a wireless communication system, comprising the steps of:
- determining if an uplink communication path in the wireless communication system is inactive;
if the uplink communication path is inactive, decreasing a gain level of an uplink antenna unit associated with the uplink communication path to a first predetermined value;
determining if the uplink communication path in the wireless communication system is active; and
if the uplink communication path is active, increasing the gain level of the uplink antenna unit associated with the uplink communication path to a second predetermined value.
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Accused Products
Abstract
A method and system for reducing the overall noise floor in a wireless communication system, subsystem or network are disclosed, which reduces the output gain levels of specific uplink antenna transmitters during non-signal time periods (e.g., rest mode) when no communication signals are being conveyed between the mobile unit(s) and base station involved. The output gain level of each such uplink antenna'"'"'s transmitter is decreased by a predetermined amount, which reduces the noise contribution of that uplink antenna, but also maintains the gain at a high enough level so that a signal can still pass from a mobile unit to the base station via that link, for example, during a call initiation attempt.
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Citations
20 Claims
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1. A method for reducing uplink noise in a wireless communication system, comprising the steps of:
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determining if an uplink communication path in the wireless communication system is inactive; if the uplink communication path is inactive, decreasing a gain level of an uplink antenna unit associated with the uplink communication path to a first predetermined value; determining if the uplink communication path in the wireless communication system is active; and if the uplink communication path is active, increasing the gain level of the uplink antenna unit associated with the uplink communication path to a second predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for reducing uplink noise in a cellular communications network, comprising the steps of:
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determining whether or not a remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit; if the remote antenna unit in the cellular communications network is not receiving at least one communication signal from a mobile unit, decreasing a transmit antenna gain of the remote antenna unit to a first predetermined value; re-determining whether or not the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit; and if the remote antenna unit in the cellular communications network is receiving at least one communication signal from a mobile unit, increasing the transmit antenna gain of the remote antenna unit to a second predetermined value. - View Dependent Claims (12, 13, 14)
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15. A system for reducing uplink noise in a wireless communications network, comprising:
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a plurality of mobile units; a base station; and a plurality of uplink antenna units located between the plurality of mobile units and the base station, wherein a control unit associated with at least one of the base station and an uplink antenna unit of the plurality of uplink antenna units is configured to; determine if a communication link associated with the uplink antenna unit is active or inactive; if the communication link is inactive, decrease a gain level of the uplink antenna unit to a first predetermined value; re-determine if the communication link is active or inactive; and if the communication link is active, increase the gain level of the uplink antenna unit to a second predetermined value. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification