Invention Grant
- Patent Title: Methods and apparatus for expeditiously releasing network resources for a mobile station based on low battery and lost signal conditions
- Patent Title (中): 基于低电量和丢失信号条件,为移动台迅速释放网络资源的方法和装置
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Application No.: US10845876Application Date: 2004-05-14
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Publication No.: US07130667B2Publication Date: 2006-10-31
- Inventor: Xin Jin , Muhammad Khaledul Islam , Wen Zhao
- Applicant: Xin Jin , Muhammad Khaledul Islam , Wen Zhao
- Applicant Address: CA Waterloo
- Assignee: Research In Motion Limited
- Current Assignee: Research In Motion Limited
- Current Assignee Address: CA Waterloo
- Agent John J. Oskorep, Esq.
- Main IPC: H04M1/38
- IPC: H04M1/38 ; H04M1/16

Abstract:
Methods and apparatus for expeditiously releasing network resources for a mobile station based on low battery and lost signal conditions are disclosed. The wireless network (104) receives a power down warning message from the mobile station (102) indicative of a low battery condition. The wireless network (104) then identifies whether a lost signal condition exists with the mobile station (102). In response to receiving the power down warning message and subsequently identifying the lost signal condition, the wireless network (104) causes network resources for the mobile station to be released. The wireless network (104) infers that the mobile station (102) has powered down due to low battery without enough time to send a power down registration to the wireless network (104).
Public/Granted literature
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