Method for reducing the handover frequency by a femto gateway in femtocell networks

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

13/407,735

專利證號

US 8,768,361 B2

專利獲證名稱

Method for reducing the handover frequency by a femto gateway in femtocell networks

專利所屬機關 (申請機關)

國立清華大學

獲證日期

2014/07/01

技術說明

一種在毫微微蜂窩式網路中利用毫微微蜂窩式閘道器減少換手次數之方法，其步驟包含：由一原始毫微微蜂窩式基地台接收一通訊裝置之測量報告；若原始毫微微蜂窩式基地台之訊號強度小於一門檻值，則由原始毫微微蜂窩式基地台傳送一需要換手訊息至一毫微微蜂窩式閘道器；在毫微微蜂窩式閘道器接收需要換手訊息後，暫緩換手程序並啟動一計時器；由毫微微蜂窩式閘道器在計時器時效內，檢查所接收到的通話重建請求訊息內所包含之基地台辨識碼是否屬於毫微微蜂窩式基地台；若是，則將通話重建至該基地台辨識碼所對應之毫微微蜂窩式基地台。 A method for reducing the handover frequency by a femto gateway in femtocell networks includes the steps: receiving a measurement report from a communication device by an initial femtocell; transmitting a relocation required message to a femto gateway by the initial femtocell if the signal strength thereof is below a threshold; ignoring the relocation required message and enabling the timer by the femto gateway after receiving the relocation required message; determining whether the cell ID included in the call reestablishment request message is classified as “femtocell” or not by the femto gateway before the timer expires; if so, rebuilding the link to the femtocell in response to the cell ID by the femto gateway.

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