Multi-Carrier Communications With Group-Based Subcarrier Allocation
First Claim
Patent Images
1. A method for wireless communication, said method comprising:
- allocating a first set of one or more subcarriers to a subscriber to over a wireless link with said subscriber;
receiving information indicative of quality of said allocated subcarriers;
changing said allocation from said first set to a second set; and
transmitting said second set of one or more subcarriers to said subscriber;
wherein said second set is different than said first set.
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Abstract
A method and apparatus for subcarrier selection for systems is described. In one embodiment, the system employs orthogonal frequency division multiple access (OFDMA). In one embodiment, a method for subcarrier selection comprises a subscriber measuring channel and interference information for subcarriers based on pilot symbols received from a base station, the subscriber selecting a set of candidate subcarriers, providing feedback information on the set of candidate subcarriers to the base station, and receiving an indication of subcarriers of the set of subcarriers selected by the base station for use by the subscriber.
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Citations
62 Claims
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1. A method for wireless communication, said method comprising:
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allocating a first set of one or more subcarriers to a subscriber to over a wireless link with said subscriber; receiving information indicative of quality of said allocated subcarriers; changing said allocation from said first set to a second set; and transmitting said second set of one or more subcarriers to said subscriber; wherein said second set is different than said first set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for wireless communication, said method comprising:
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receiving, from one or more subscriber stations, information indicative of quality of one or more subcarriers allocated to said one or more subscriber stations; prioritizing one or more subcarriers for communication with said one or subscribers based on said received information; transmitting one or more subcarriers to said one or more subscribers according to said priority; and updating, from time to time, said priority based on additional received information indicative of quality of said one or more subcarriers. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A method for wireless communication, said method comprising:
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sending, from a base station, an instruction to a subscriber station to measure channel condition information for one or more subcarriers, said subcarriers available for communication between said base station and said subscriber station; receiving, at said base station, information indicative of measured channel condition information of said one or more subcarriers; and allocating one or more subcarriers to said subscriber station. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for wireless communication, said method comprising:
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receiving a first allocation of one or more subcarriers from a base station to establish a wireless communication link with said base station; transmitting, after receiving said first allocation, information indicative of quality of said one or more subcarriers to said base station; and receiving a second allocation of one or more subcarriers from said base station; wherein said second allocation is different than said first allocation. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A method for wireless communication, said method comprising:
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receiving, at a subscriber station, an instruction from a base station to measure channel condition information for one or more subcarriers, said subcarriers available for communication between said base station and said subscriber station; measuring channel condition information for one or more subcarriers in accordance with said instruction; transmitting information indicative of measured channel condition information of said one or more subcarriers to said base station; and receiving an allocation of one or more subcarriers from said base station. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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Specification