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In which condition we embedded Handover Selector Function (HOSF) and what it does?

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In which condition we embedded Handover Selector Function (HOSF) and what it does?
posted May 13, 2014 by Pushpak Chauhan

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VoLGA Function Entity HOSF:
*HOSF = Handover Selection Function*

  • In case of handover, the HOSF decides if the HO request from the MME is for VoLGA or for IMS/SRVCC and routes the request accordingly (i.e. either to the serving VANC or to the MSC Server enhanced for SRVCC).
  • HOSF shall support the VANC-UE binding creation and deletion procedures so that it can make these decisions based on the stored record of the serving VANC for the UE.
  • HOSF is a logical functional entity, which can be deployed according to operator's requirements (e.g. separate entity, embedded in MME or VANC).
answer May 14, 2014 by Puneet Batra
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