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Decoding of uplink control information encoded with placeholders in long term evolution |
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| Authors: | WANG Dan LIAO Yong FAN Tong-liang |
| Affiliation: | College of Communication Engineering, Chongqing University, Chongqing 400044, P.R. China;Center of Communication and Tracking Telemetering Command, Chongqing University, Chongqing 400044, P.R. China;College of Communication Engineering, Chongqing University, Chongqing 400044, P.R. China |
| Abstract: | In 3GPP (the 3rd Generation Partnership Project) LTE (Long Term Evolution) systems, the physical uplink shared channel (PUSCH) conveys uplink control information (UCI) back to eNodeB with or without UL-SCH (uplink shared channel) data. Placeholders are inserted into the UCI to scramble in a way that maximizes the Euclidean distance of modulation symbols. Considering the attribution of encoding with placeholders, a simple and efficient decoding scheme is proposed in this paper. As shown in our simulation results, improved performance is achieved. |
| Keywords: | decoding placeholder constellation acknowledge/non-acknowledge (ACK/NACK) rank indication (RI) long term evolution (LTE) physical uplink shared channel (PUSCH) |
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