Method for encoding data symbols with implicitly embedded pilot symbols in resource blocks for wireless networks
AssigneeMitsubishi Electric Research Laboratories, Inc.
InventorsRamesh Annavajjala, Philip V. Orlik
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Abstract
A set of data symbols is selected from a set of modulation constellation, and a sample-mean of the set of data symbols is determined. Each data symbol is first shifted by the sample-mean to obtain a shifted data symbol, and then the shifted symbol is multiplied by a first constant to obtain a scaled data symbol. A second constant is added to the scaled data symbol to obtain a mapped data symbol. The sample-mean is multiplied by a third constant to obtain a sample-mean mapped symbol. The set of mapped data symbols and the sample-mean mapped symbol are then transmitted as a resource block.
Claims13
A method for encoding data symbols in a transmitter of a wireless network, comprising the steps of:
- providing a set of data symbols to a transmitter to be transmitted, wherein each data symbols is selected from a set of modulation constellations;
- determining a sample-mean of the set of data symbols;
- shifting each data symbol by the sample-mean to obtain a shifted data symbol;
- multiplying the shifted data symbol by a first constant to obtain a scaled data symbol, wherein the first constant depends on a first function of the energy of the set of data symbols;
- adding a second constant to the scaled data symbol to obtain a mapped data symbol, wherein the second constant depends on a second function of the energy of the set of symbols;
- multiplying the sample-mean by a third constant to obtain a sample-mean mapped symbol;
- transmitting, over a channel, the set of mapped data symbols and the sample-mean mapped symbol as a resource block, wherein the steps are performed in the transmitter.
Dependencies are inferred from the claim text.