| Presentation | 2012-12-13 Investigation on CQI Definition for CoMP in LTE-Advanced Downlink Jing Wang, Xiang Yun, Satoshi Nagata, Lan Chen, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to support dynamic switching among different coordinated multi-point (CoMP) schemes, the eNodeB needs to have channel quality indicator (CQI) information for different schemes to perform scheduling. The full feedback scheme can provide accurate CQI for different CoMP schemes but it comes at the cost of a large feedback overhead. A new CQI definition of relative interference was proposed to reduce the feedback overhead while enabling the eNodeB to obtain various types of CQI for different CoMP schemes through CQI updates. In this paper, we compare the proposed scheme with other possible CQI definitions, and clarify their performance impact under different traffic loads. Evaluation results show that the proposed CQI definition of relative interference works effectively under different traffic loads for different CoMP schemes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LTE-Advanced / coordinated multi-point transmission / channel quality indicator |
| Paper # | RCS2012-186 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/12/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Investigation on CQI Definition for CoMP in LTE-Advanced Downlink |
| Sub Title (in English) | |
| Keyword(1) | LTE-Advanced |
| Keyword(2) | coordinated multi-point transmission |
| Keyword(3) | channel quality indicator |
| 1st Author's Name | Jing Wang |
| 1st Author's Affiliation | DoCoMo Beijing Communications Laboratories() |
| 2nd Author's Name | Xiang Yun |
| 2nd Author's Affiliation | DoCoMo Beijing Communications Laboratories |
| 3rd Author's Name | Satoshi Nagata |
| 3rd Author's Affiliation | Radio Access Network Development Department, NTT DOCOMO, INC. |
| 4th Author's Name | Lan Chen |
| 4th Author's Affiliation | DoCoMo Beijing Communications Laboratories |
| Date | 2012-12-13 |
| Paper # | RCS2012-186 |
| Volume (vol) | vol.112 |
| Number (no) | 351 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |