Dynamic coverage adjustment in a multi-carrier communication system
First Claim
1. A method for wireless communication comprising:
- communicating on a first carrier in a sector at a first transmit power level;
communicating on a second carrier in the sector at a second transmit power level equal to or lower than the first transmit power level; and
varying, by lowering the second transmit power level for the secondcarrier based on load of the sector and independent of the first transmit power level of the first carrier.
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Accused Products
Abstract
Techniques for dynamically varying coverage in a multi-carrier communication system are described. A sector may operate on multiple carriers. The sector may vary coverage on a given carrier k based on its load, so that less interference may be caused to other sectors when the sector load is light. In one design, the sector may communicate on a first carrier at a first transmit power level and on a second carrier at a second transmit power level equal to or lower than the first transmit power level. The sector may vary the second transmit power level based on its load to vary the coverage of the second carrier. The sector may reduce the second transmit power level to zero or a low level if the sector load is light. The sector may also vary the second transmit power level based on a function of sector load or a switching pattern.
43 Citations
34 Claims
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1. A method for wireless communication comprising:
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communicating on a first carrier in a sector at a first transmit power level; communicating on a second carrier in the sector at a second transmit power level equal to or lower than the first transmit power level; and varying, by lowering the second transmit power level for the second carrier based on load of the sector and independent of the first transmit power level of the first carrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for wireless communication, comprising:
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means for communicating on a first carrier in a sector at a first transmit power level; means for communicating on a second carrier in the sector at a second transmit power level equal to or lower than the first transmit power level; and means for varying, by lowering the second transmit power level for the second carrier based on load of the sector and independent of the first transmit power level of the first carrier. - View Dependent Claims (15, 16, 17, 18)
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19. An apparatus for wireless communication, comprising:
at least one processor configured to communicate on a first carrier in a sector at a first transmit power level, to communicate on a second carrier in the sector at a second transmit power level equal to or lower than the first transmit power level, and to vary, by lowering the second transmit power level for the second carrier based on load of the sector and independent of the first transmit power level of the first carrier. - View Dependent Claims (20, 21, 22, 23)
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24. A computer program product, comprising:
a non-transitory computer-readable medium comprising; code for causing at least one computer to communicate on a first carrier in a sector at a first transmit power level, code for causing the at least one computer to communicate on a second carrier in the sector at a second transmit power level equal to or lower than the first transmit power level, and code for causing the at least one computer to vary, by lowering the second transmit power level for the second carrier based on load of the sector and independent of the first transmit power level of the first carrier.
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25. A method for wireless communication, comprising:
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obtaining a first signal-to-noise-and-interference ratio (SINR) for a first sector on a first carrier; obtaining a second SINR for the first sector on a second carrier in the first sector, the second SINR being different from the first SINR due to the first sector varying, by lowering transmit power on the second carrier based on load of the first sector and independent of a transmit power level of the first carrier; selecting at least one carrier for the communication based on the first and second SINRs; and
communicating with the first sector on the at least one selected carrier. - View Dependent Claims (26, 27, 28, 29, 30)
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31. An apparatus for wireless communication, comprising:
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means for obtaining a first signal-to-noise-and-interference ratio (SINR) for a first sector on a first carrier; means for obtaining a second SINR for the first sector on a second carrier in the first sector, the second SINR being different from the first SINR due to the first sector varying, by lowering transmit power on the second carrier based on load of the first sector and independent of a transmit power level of the first carrier; means for selecting at least one carrier for the communication based on the first and second SINRs; and means for communicating with the first sector on the at least one selected carrier. - View Dependent Claims (32, 33, 34)
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Specification