Method and device for allocating mobile-node network address identifiers
A network address, mobile node technology, applied in the direction of network interconnection, network connection, data exchange network, etc., can solve the problem that the MN-NAI allocation method is not clearly pointed out, and achieve the effect of complete functions
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[0038] When the UE attaches to the EPS system, the MME (Mobility Management Entity, mobile management entity) will select the Serving GW. If the Serving GW supports both the PMIP protocol and the GTP protocol, the MME needs to notify the Serving GW which S5 / S8 interface to use protocol.
[0039] There are two situations:
[0040] Case 1. If the S5 / S8 interface adopts the GTP protocol, the process when the UE attaches to the EPS system is as follows: figure 2 As shown, it specifically includes the following steps:
[0041] Step S11, the UE sends an Attach Request to the eNodeB.
[0042] Step S12, the eNodeB forwards the Attach Request to the new MME.
[0043] Step S13a, the new MME sends an Identification Request to the old MME / SGSN (Serving GPRS Support Node, serving general packet data service support node).
[0044] Step S13b, the old MME / SGSN feeds back an Identification Response.
[0045] Step S14a, the new MME sends an Identification Request to the UE.
[0046] In ...
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