Method and apparatus for path imbalance reduction in networks using high speed data packet access (HSDPA)
First Claim
1. A method for use in a wireless cellular network comprising:
- receiving at a base station in a cell in said network a first uplink signal from a user device via an uplink channel;
generating a noise signal as a function of a desired power of a downlink channel in said cell; and
applying said noise signal to said first uplink signal to create a second uplink signal.
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Accused Products
Abstract
A method and apparatus are disclosed whereby noise is introduced at one or more base stations in non-HSDPA cells into the uplink signal from one or more user devices. As a result, the apparent quality of the uplink channel in those cells will appear to be lower than the actual quality of that channel. The power control commands issued from the base station to the user device will, therefore, reflect this lower estimated channel quality and, as a result, the user device will follow power control commands from the base station in the HSDPA cell. Therefore, the transmit power of the user device will remain adequate to communicate with the base station in the HSDPA cell and, as a result, the UL and DL in the HSDPA cell will remain synchronized.
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Citations
30 Claims
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1. A method for use in a wireless cellular network comprising:
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receiving at a base station in a cell in said network a first uplink signal from a user device via an uplink channel; generating a noise signal as a function of a desired power of a downlink channel in said cell; and applying said noise signal to said first uplink signal to create a second uplink signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for use in a wireless cellular network comprising:
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means for receiving at a base station in a cell in said network a first uplink signal from a user device via an uplink channel; means for generating a noise signal as a function of a desired power of a downlink channel in said cell; and means for applying said noise signal to said first uplink signal to create a second uplink signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer readable medium comprising computer program instructions which, when executed by a processor, define the steps for providing service in a wireless cellular network, said steps comprising:
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receiving at a base station in a cell in said network a first uplink signal from a user device via an uplink channel; generating a noise signal as a function of a desired power of a downlink channel in said cell; and applying said noise signal to said first uplink signal to create a second uplink signal. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification