有效呼叫數 的英文怎麼說
中文拼音 [yǒuxiàohūjiàoshǔ]
有效呼叫數
英文
number of effective call-
In data communications, the action performed by the calling party, or the operations necessary in making a call, or the effective use made of a connection between two stations
在數據通訊中指呼叫用戶的動作,或在產生呼叫時所需的操作,或由兩個通訊站連接起來實現的有效使用。To solve the former problem, hiarachical cellular system ( hcs ) could be applied, where macrocells cover low - teletraffic areas and serve slow calls, while microcells overlay high - teletraffic areas and serve fast calls. by this means, better spectrum efficiency can be achieved and the number of handoffs can be decreased
對於前者,採用多層蜂窩系統( hcs ) ,使得宏蜂窩覆蓋低話務量地區並為快速呼叫提供服務,而微蜂窩覆蓋高話務量地區並為慢速呼叫提供服務,這樣既保證較高的頻譜利用效率,又能有效地降低呼叫的切換次數。
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