Back to results
US 2016/0112158 A1Published application
Method for Concurrent Transmission of Information Symbols in Wireless Communication Systems
AssigneeHuawei Technologies Co., Ltd.
InventorsBranislav Popovic, Anahid Robert Safavi
Life of this patent
Estimating the term…
Abstract
The present invention relates to methods for concurrent transmission and reception of information symbols over time-frequency resource elements in a wireless communication system. According to the present invention coded bits interleaving is combined with symbol spreading using LDS signatures. Thereby, the performance of coded LDS transmissions can be substantially improved in wireless communication systems. Furthermore, the invention also relates to corresponding transmit device, receiver device, computer program, and computer program product.
Claims12
A method, comprising:
- receiving, by a receiver, information bits for transmission;
- grouping the information bits into blocks of bits;
- encoding each block of bits using an error correction code to obtain a corresponding code word;
- interleaving the code word by permuting the information bits of the code word using a Low-Density Spreading (LDS) bit interleaver;
- dividing the permuted information bits into a plurality of segments of bits;
- mapping each segment of bits onto n number of modulation symbols;
- multiplying the n number of modulation symbols with LDS signatures, each signature having m number of chips, so as to obtain n number of spread modulation symbols;
- mapping the m number of chips onto time-frequency resource elements;
- and
- transmitting, by a transmitter, the n spread modulation symbols over m time-frequency resource elements in a wireless communication system.
7 more elements
A method, comprising:
- receiving, by a receiver, information bits for transmission;
- grouping the information bits into blocks of bits;
- encoding each block of bits using an error correction code so as to obtain a corresponding code word;
- dividing the bits of the code word into a plurality of segments of bits;
- mapping each segment of bits onto n number of modulation symbols;
- interleaving the n modulation symbols by permuting the n modulation symbols using a Low-Density Spreading (LDS) symbol interleaver;
- multiplying the n number of modulation symbols with LDS signatures, each signature having m number of chips, so as to obtain n number of spread modulation symbols;
- mapping the m chips onto time-frequency resource elements;
- and
- transmitting, by a transmitter, the n number of spread modulation symbols over m time-frequency resource elements.
7 more elements
Dependencies are inferred from the claim text.