US2007098098A1

5G,4G

Title

METHOD AND APPARATUS FOR PROVIDING CHANNEL QUALITY FEEDBACK IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM

Application Number:

US20060552716

Publication Date:

03-05-2007

Current Assignee:

GOOGLE INC

Family ID:

37996270

Application Date:

25-10-2006

Publication Country:

US

View on Espacenet

Priority Date:

31-10-2005

Declaring Company:

GOOGLE INC , MOTOROLA INC

Abstract  Abstract

In an Orthogonal Frequency Division Multiplexing communication system a user equipment reports channel quality information that is sufficient to construct a fading profile of a frequency bandwidth and that does not consuming the overhead resulting from the reporting of CQI for every sub-band of the frequency bandwidth. In the communication system the frequency bandwidth may be represented by multiple sub-band levels wherein each sub-band level comprises a division of the frequency bandwidth into a number of sub-bands different from the number of sub-bands of the other sub-band levels. The user equipment measures a channel quality associated with each sub-band of a sub-band level of the multiple sub-band levels selects a sub-band of the sub-band level based on the measured channel qualities and reports channel quality information associated with the selected sub-band to a radio access network.

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