Uplink burst equalizing method in broad wide access system

Details Uplink burst equalizing method in broad wide access system Uplink burst equalizing method in broad wide access system

2003-12-26

2010-02-16

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Equalizers

Automatic

C375S233000, C375S346000, C375S232000, C375S260000, C375S350000, C329S316000

Reexamination Certificate

active

07664171

ABSTRACT:
A method for uplink burst equalization in broad wide access system, using the form of combining pre-training and burst equalization, that is, before transmitting user data, training the equalizer, then starting transmitting user data, in which, the equalizer uses decision user data as reference to track the changed wireless channel; if the change of channel exceeds the tracking region of equalizer, for example, the error rate exceeds threshold1but doesn't exceed threshold2, the burst equalization will be performed; if the channel change exceeds the equalization region of equalizer, for example, the error rate exceeds threshold2, the training will be performed again. By using the form of combining pre-training and burst equalization, setting different thresholds for handoff, the present invention greatly prolongs the intervals of subsequent pre-training process, thereby reducing the times of pre-training and increasing the effective bandwidth; By introducing burst equalization process, the present invention also decreases the requirement of system on operation occasion (for example, the static channel or the interval of bursts should be short), thereby increasing the application occasions of product.

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