Method of measuring transmit quality in a closed loop...

Details Method of measuring transmit quality in a closed loop... Method of measuring transmit quality in a closed loop...

2006-07-26

2011-11-08

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S252000, C370S252000, C370S319000, C455S279100

Reexamination Certificate

active

08054905

ABSTRACT:
In a method for determining channel quality information in a high speed packet access communication system with closed loop transmit diversity, power and variance related to a common pilot channel (CPICH) are determined for a rake receiver to obtain a closed loop transmit gain adjustment and to determine the CPICH signal-to-noise ratio. Thereafter, a high speed downlink shared channel (HS-DSCH) signal-to-noise ratio is determined from the CPICH signal-to-noise ratio and is mapped to derive channel quality information.

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3GPP, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Physical Layer Procedure”, Jun. 2005, 3rd Generation Partnership Project, Release 6.
3GPP TS 25.214, v6.6.0 (Jun. 2005); Technical Specification Group Radio Access Network; Physical layer procedures (FDD) (Release 6).

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