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題 名 | The Study of Power Control Mechanism in the IS-95 CDMA System=IS-95 CDMA系統功率控制機制研究 |
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作 者 | 許恆圓; 賴永仁; 林世銓; | 書刊名 | 電信研究 |
卷 期 | 30:2 2000.04[民89.04] |
頁 次 | 頁205-234 |
分類號 | 448.84 |
關鍵詞 | 功率控制; 分碼多重進接; 上鏈; 下鏈; 多路徑衰落; Power control; Code division multiple access; CDMA; Uplink; Downlink; Multipath fading; |
語 文 | 英文(English) |
中文摘要 | 本文旨在研究IS-95 CDMA系統中的功率控制機制。在IS-95 CDMA系統中,毫無疑問地,如何控制基地臺和行動臺的功率大小是個重要的議題。功率控制可以使得從行動臺送出的功率維持在所須的最小值之上,並且確保基地臺收到來自不同行動臺的功率大小相同;同時,也確保行動臺收到來自不同基地臺的功率大小相同。而這些特性,亦確保了此系統高容量的優點。 |
英文摘要 | The purpose of this paper is to study the power control mechanism of the IS-95 CDMA System. In the IS-95 CDMA System, how to control the mobile and cell-site transmitted power level accordingly is undoubtedly an important topic. It makes that the transmitted signal power from each mobile unit is a accordingly controlled to maintain at a minimum value, and the power received at the cell-site from all the mobile units are assured to be the same. Also the power received at the cell-site from all the mobile units are assured to be the same. Without these characteristics, the high capacity advantage would be lost. |
本系統中英文摘要資訊取自各篇刊載內容。