Apparatus and method for reporting quality of downlink...

Details Apparatus and method for reporting quality of downlink... Apparatus and method for reporting quality of downlink...

2007-06-26

2007-06-26

Ferguson, Keith (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S328000, C370S330000, C370S313000, C370S314000, C370S332000, C370S341000, C455S067110, C455S522000, C455S422100, C455S403000, C455S067130, C455S500000, C455S517000

Reexamination Certificate

active

10287241

ABSTRACT:
An apparatus for reporting downlink channel quality in a high-speed packet communication system. A channel analyzer measures downlink channel quality from a received reference channel signal. A controller determines whether a current TTI (Transmission Time Interval) is a TTI corresponding to a multiple of a first TTI or a TTI corresponding to a multiple of a second TTI. If the current TTI is a TTI corresponding to a multiple of the first TTI, the controller determines CQ (Channel Quality) refreshment information for a downlink channel received from the Node B based on the measured downlink channel quality, and if the current TTI is a TTI corresponding to a multiple of the second TTI, the controller determines CQ refinement information for the downlink channel based on the measured downlink channel quality. A CQ information transmitter generates CQ refreshment information or CQ refinement information under the control of the controller, and transmits the generated CQ refreshment information or CQ refinement information over an uplink.

REFERENCES:
patent: 5995496 (1999-11-01), Honkasalo et al.
patent: 6912228 (2005-06-01), Dahlman et al.
patent: 2005/0208961 (2005-09-01), Willenegger
patent: 2006/0135063 (2006-06-01), Katz

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