Method and apparatus for a dedicated physical channel in a wireless communication system
AssigneeQUALCOMM Incorporated
InventorSerge Willenegger
Life of this patent
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Abstract
Method and apparatus for determining a transmission configuration for a dedicated channel in a wireless communication system. In one embodiment, an optimum configuration is determined based on minimizing Peak-to-Average Ratio (PAR) of the channel. The configuration is defined as a transmission pair of transmission branch and spreading code. The transmission branch may be the In-Phase (I) branch or the Quadrature (Q) branch. PAR analysis may be performed off-line to determine the optimum configuration. In operation, if the spreading code of the optimum configuration is used by another channel, the next best optimum code is used.
Claims6
In a wireless communication system, a method comprising:
- determining a transmission configuration for a first channel as a function of Peak-to-Average Ratio (PAR) on the first channel, the transmission configuration including a spreading code and a modulation path;
- if the spreading code if used by another channel in the wireless communication system, updating the transmission configuration as a function of PAR;
- and
- applying the transmission configuration to the first channel.
A wireless communication apparatus, comprising:
- means for determining a transmission configuration for a first channel as a function of Peak-to-Average Ratio (PAR) on the first channel, the transmission configuration including a spreading code and a modulation path;
- means for updating the transmission configuration as a function of PAR if the spreading code if used by another channel in the wireless communication system;
- and
- means for applying the transmission configuration to the first channel.
A wireless apparatus, comprising:
- modulation pair selection unit for determining a modulation pair based on Peak-to-Average Ratio (PAR);
- and
- selector coupled to the modulation pair selection unit, that selects a modulation path based on the modulation pair.
Dependencies are inferred from the claim text.