POWER CONTROL FOR WIRELESS LAN STATIONS
First Claim
1. A method for wireless communication, comprising:
- receiving a plurality of uplink (UL) signals;
determining power of the received plurality of UL signals;
determining adjustment information for a UL signal in the plurality of UL signals based on at least the power of the received UL signals and a target carrier-to-interference (C/I) ratio; and
transmitting the adjustment information.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.
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Citations
44 Claims
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1. A method for wireless communication, comprising:
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receiving a plurality of uplink (UL) signals; determining power of the received plurality of UL signals; determining adjustment information for a UL signal in the plurality of UL signals based on at least the power of the received UL signals and a target carrier-to-interference (C/I) ratio; and transmitting the adjustment information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for wireless communications, comprising:
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means for receiving a plurality of uplink (UL) signals; means for determining power of the received plurality of UL signals; means for determining adjustment information for a UL signal in the plurality of UL signals based on at least the power of the received UL signals and a target carrier-to-interference (C/I) ratio; and means for transmitting the adjustment information. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An access point (AP), comprising:
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a receiver configured to receive a plurality of uplink (UL) signals; logic for determining power of the received plurality of UL signals; logic for determining adjustment information for a UL signal in the plurality of UL signals based on at least the power of the received UL signals and a target carrier-to-interference (C/I) ratio; and a transmitter configured to transmit the adjustment information. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A computer-program product for wireless communications, comprising a computer-readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
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instructions for receiving a plurality of uplink (UL) signals; instructions for determining power of the received plurality of UL signals; instructions for determining adjustment information for a UL signal in the plurality of UL signals based on at least the power of the received UL signals and a target carrier-to-interference (C/I) ratio; and instructions for transmitting the adjustment information. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification