OBTAINING CHANNEL FEEDBACK FROM USERS IN A WIRELESS COMMUNICATION SYSTEM
First Claim
1. A method of obtaining subchannel feedback from a plurality of mobile devices in a communication system, in which a channel is divided into a plurality of available subchannels, the method comprising:
- requesting channel information from the plurality of mobile devices;
receiving channel information from the plurality of mobile devices;
based on the received channel information, selecting a subset of the mobile devices;
requesting subchannel information relating to a subset of the available subchannels, from the selected subset of the mobile devices; and
receiving said subchannel information in the form of information identifying said subset of the available subchannels, without indicating a quality of said subset of the available subchannels.
1 Assignment
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Accused Products
Abstract
Subchannel feedback is provided from a plurality of mobile devices to a base station in a communication system, in which a channel is divided into available subchannels. The base station first requests channel information from the mobile devices, and then receives the channel information, for example in the form of an average Effective Signal to Noise Ratio for the channel. Based on the received channel information, the base station selects a subset of the mobile devices, i.e. the best mobile devices. The base station then requests subchannel information relating to a subset of the available subchannels, from the selected subset of the mobile devices, and receives the subchannel information in the form of information identifying said subset of the available subchannels, without indicting a quality of said subset of the available subchannels.
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Citations
20 Claims
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1. A method of obtaining subchannel feedback from a plurality of mobile devices in a communication system, in which a channel is divided into a plurality of available subchannels, the method comprising:
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requesting channel information from the plurality of mobile devices; receiving channel information from the plurality of mobile devices; based on the received channel information, selecting a subset of the mobile devices; requesting subchannel information relating to a subset of the available subchannels, from the selected subset of the mobile devices; and receiving said subchannel information in the form of information identifying said subset of the available subchannels, without indicating a quality of said subset of the available subchannels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A base station, for use in a communication system, in which a channel is divided into a plurality of available subchannels, the base station being adapted to obtain subchannel feedback from a plurality of mobile devices by:
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requesting channel information from the plurality of mobile devices; receiving channel information from the plurality of mobile devices; based on the received channel information, selecting a subset of the mobile devices; requesting subchannel information relating to a subset of the available subchannels, from the selected subset of the mobile devices; and receiving said subchannel information in the form of information identifying said subset of the available subchannels, without indicating a quality of said subset of the available subchannels. - View Dependent Claims (14)
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15. A method of providing subchannel feedback, for use in a mobile device in a communication system, in which a channel is divided into a plurality of available subchannels, the method comprising:
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receiving a request for subchannel information; identifying a preferred subset of the available subchannels; and transmitting to a base station indices identifying the preferred subset of the available subchannels, without also transmitting subchannel quality information relating to the preferred subset of the available subchannels. - View Dependent Claims (16, 17)
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18. A wireless communications device, for use in a in a communication system in which a channel is divided into a plurality of available subchannels, the wireless communications device being adapted to provide subchannel feedback to a base station by:
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receiving a request for subchannel information; identifying a preferred subset of the available subchannels; and transmitting to the base station indices identifying the preferred subset of the available subchannels, without also transmitting subchannel quality information relating to the preferred subset of the available subchannels. - View Dependent Claims (19, 20)
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Specification