| Presentation | 2009-12-18 Proposal on Generation method of Reference Signal in LTE-Advanced Uplink Takamichi Inoue, Yoshikazu Kakura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In LTE-Advanced UL, the discontinuous resource block(RB) allocation within a component carrier (CC) (clustered(CL) DFT-Spread(S)-OFDM) was agreed. By applying CL DFT-S-OFDM, higher average cell throughput compared to SC-FDMA can be achieved. For CL DFT-S-OFDM, demodulation reference signal should be transmitted in the same band of data transmission. Hence, discontinuous RB allocation within a CC is also necessary for RS transmission. On the other hand, as required peak rate for LTE-Advanced uplink is 500Mbps which is higher than that for LTE, it is required to transmit with wider bandwidth than that for LTE. In LTE-Advanced, carrier aggregation is applied to extend transmission bandwidth and N x DFT-S-OFDM is agreed for uplink access scheme. The CM with N x DFT-S-OFDM increases when the same RS sequence is used in multiple CCs. In this paper, we propose the generation of RS for CL DFT-S-OFDM. In terms of cubic metric (CM) and channel estimation accuracy, we show that it is suitable to map one RS sequence to DM RS resource of multiple clusters in CC. Furthermore, we propose the generation of RS for N x DFT-S-OFDM. Considering the effect of CM reduction, we show that it is suitable to utilize different sequence group(SG) or different cyclic shift(CS) sequence for each CC. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LTE-Advanced / clustered DFT-S-OFDM / N x DFT-S-OFDM / Reference signal / Cubic Metric |
| Paper # | RCS2009-188 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2009/12/10(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal on Generation method of Reference Signal in LTE-Advanced Uplink |
| Sub Title (in English) | |
| Keyword(1) | LTE-Advanced |
| Keyword(2) | clustered DFT-S-OFDM |
| Keyword(3) | N x DFT-S-OFDM |
| Keyword(4) | Reference signal |
| Keyword(5) | Cubic Metric |
| 1st Author's Name | Takamichi Inoue |
| 1st Author's Affiliation | System Platforms Research Laboratories, NEC Corporation() |
| 2nd Author's Name | Yoshikazu Kakura |
| 2nd Author's Affiliation | System Platforms Research Laboratories, NEC Corporation |
| Date | 2009-12-18 |
| Paper # | RCS2009-188 |
| Volume (vol) | vol.109 |
| Number (no) | 341 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |