作者saap (saap)
看板comm_and_RF
標題[問題] 802.16 admitted QoS Parameter Set 看不懂解釋
時間Wed Jul 26 04:06:26 2006
老實說小弟的英文不是很溜,
但自覺還可以懂規格書上說的意思,
就算不完全正確也不會差太多,
前幾天meeting時老師指著規格書中的一段說:
"我覺的這和你說的感覺怪怪的",
頓時害我不知如何是好,
因此想煩請各位先進們幫我看看到底是怎樣,
在802.16-2004規格書第224頁中admitted service flows中提到:
A service flow that has resources assigned to its AdmittedQoSParamSet, but
whose resources are not yet completely activated, is in a transient state. It
is possible in some applications that a long-term reservation of resources is
necessary or desirable. For example, placing a telephone call on hold should
allow any resources in use for the call to be temporarily allocated to other
purposes, but these resources shall be available for resumption of the call
later. The AdmittedQoSParamSet is maintained as “soft state” in the BS;
this state shall be maintained without releasing the nonactivated resources.
Changes may be signaled with a DSC-REQ message.
我大概的解釋如下:
某些上層應用須要經由一段時間後才開使啟用,
舉例來說一通電話被暫停住時,
其資源可以被挪為它用,
但之後又開始要講電話時這些資源便須立即要回來,
因此AdmittedQoSParamSet就像一個BS的"軟狀態"(本人把它當成是邏輯狀態),
此狀態將維護非啟用但不釋放的資源,
若要更動須使用DSC-REQ訊息。
想請教各位先進,
不知小弟這樣翻有無問題?
還有文中提到其資源可以被挪為它用不知是何意思,
亦煩請指點,
感謝。
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