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How does a SGW come to know whether CS Request message is received as part of Attach procedure or Handover Procedure ?

+3 votes
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In case of SGW relocation, MME sends CSRequest to new SGW, now question how does a SGW come to know that CS Request is received as part of attach procedure or handover procedure ?

posted Sep 7, 2015 by Harshita

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1 Answer

+1 vote

In case of Handover SGW will receive a Modify Bearer Request. (SGW relocation). However if Handover happens between 3GPP and Non-3GPP Access type and SGW receives a CSRequest message then the Handover Indication Flag in Indication Flags IE will be set.

Regards,
Peeyush Sharma

answer Sep 14, 2015 by Peeyush Sharma
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