Predictive paging based on mobility history and movement patterns
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United States of America Patent
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Nov 24, 2015
Grant Date -
Nov 28, 2013
app pub date -
May 25, 2012
filing date -
May 25, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for efficient paging of user equipment (UE) in an LTE network is disclosed. In addition to storing the Last Seen eNodeB (LSeNB) for each UE attached to a mobility management entity (MME), the MME also maintains an LSeNB List of the eNodeBs seen immediately before the LSeNB for each UE. When a notification for a UE arrives at the MME, then MME can select from several paging methods, including paging only the LSeNB to locate the UE and sending a paging request LSeNB as well as to the list of eNodeBs seem immediately before the LSeNB. The MME can send a paging request to more than a single eNodeB but less than a full Tracking Area. Efficient paging is especially needed for voice over internet protocol (VoIP) calls where a call will go to voice mail if a page isn't answered quickly.
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