Abstract
A transmitter in a radiocommunications system such as a Wideband Code Division Multiple Access (WCDMA) communications system transmits one set of data on an in-phase (I-) channel and another set of data on a quadrature (Q-) channel. The transmitter generates a gain signal beta and multiplies the digital data associated with the Q-channel by the gain signal beta . Complexity of the multiplication operation is reduced by limiting the gain signal beta to a finite nubmer of values that are exactly representable by a predefined number of bits such as 4-bit values to the right of a binary radix point. Modulation inaccuracy associated with quantization of beta can be eliminated by utilizing the same quantized values of beta in all components within the radiocommunications system.
A transmitter in a radiocommunications system such as a Wideband Code Division Multiple Access (WCDMA) communications system transmits one set of data on an in-phase (I-) channel and another set of data on a quadrature (Q-) channel. The transmitter generates a gain signal ? and multiplies the digital data associated with the Q-channel by the gain signal ?. Complexity of the multiplication operation is reduced by limiting the gain signal ? to a finite nubmer of values that are exactly representable by a predefined number of bits such as 4-bit values to the right of a binary radix point. Modulation inaccuracy associated with quantization of ? can be eliminated by utilizing the same quantized values of ? in all components within the radiocommunications system.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
| Not Available | 24/05/2002 | ISLD-200205-001 | ERICSSON INC |
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| Not Available | 21/07/2014 | ISLD-201409-041 | OPTIS |
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Specification Information
Specification Information
Technologies
Family Information
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