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頁籤選單縮合
題名 | 巨細胞及微細胞交遞機制研究=Handover Criterion for Macro and Microcellular Systems |
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作者姓名(中文) | 林翰章; | 書刊名 | 電信研究 |
卷期 | 32:2 2002.04[民91.04] |
頁次 | 頁245-261 |
分類號 | 448.84 |
關鍵詞 | 巨細胞; 微細胞; 多層次細胞網路架構交遞; Macrocell; Microcell; Handover; |
語文 | 中文(Chinese) |
中文摘要 | 為提昇網路服務品質以及整體話務容量,在有限頻譜資源的考量下,具備不同大小涵 蓋區、不同天線高度的網路架構於焉產生。在此種網路結構下,大部皆的話務將由下層細胞承 載,只有少部分的行動臺是由上層細胞服務。本文主要針對在此種網部架構下巨細胞及微細胞 間的各種交遞機制作研究,根據不同的環境條件及系統資源提出相關建議。 |
英文摘要 | A hierarchical overlaid scheme suitable for high-capacity microcellular communication systems is considered as a strategy to achieve high system performance and broad coverage. Hot spot, that is high-traffic areas are covered by micorocells while overlaying macrocells cover low-traffic layers. In order to realize fast handover in both microcells and macrocells, the relationship between averaging, and comparison method of received signal level, and handover detection delay was analyzed. Mobile users are grouped into two classes, "slow" and "fast" users, based on the evaluation of the amount of time a mobile station resides in a microcell. A channel assignment strategy, which tries to allocate "slow" users to the low tier (microcells) and "fast" users to the high tier (macrocells), proposed. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。