Method of scaling soft symbols of an uplink enhanced...

Details Method of scaling soft symbols of an uplink enhanced... Method of scaling soft symbols of an uplink enhanced...

2011-04-19

2011-04-19

Hu, Jinsong (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C370S329000, C370S335000, C375S262000, C375S341000, C455S069000

Reexamination Certificate

active

07929510

ABSTRACT:
A method of scaling soft symbols of an uplink E-DCH is provided, where the E-DCH is received from a user in a network for processing in a base station receiver in the network employing a log-MAP turbo decoding algorithm to process the E-DCH. The E-DCH includes an E-DPDCH from which the soft symbols are generated at the base station receiver, and an E-DPCCH used to transmit control information associated with the E-DPDCH, which along with configuration information from a radio network controller (RNC) of the network enables the base station receiver to determine a reference amplitude ratio linked to the actual power offset of the E-DPDCH from the legacy DPCCH. In the method, an estimated E-DPDCH to DPCCH amplitude ratio that represents a scaling factor for the soft symbols is determined, and the soft symbols are scaled by the scaling factor to enable the soft symbols to be processed by the log-MAP turbo decoding algorithm in the base station receiver.

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