发明名称 |
SERVING GATEWAY EXTENSIONS FOR INTER-SYSTEM MOBILITY |
摘要 |
Methods, devices, and systems related to serving gateway extensions for inter-system mobility in integrated small Cell and WiFi networks. An SGW may be extended into a common intermediate gateway for both LTE and WiFi access. A GTP-based "SI a" interface between a TWAN and an SGW is introduced. The STa interface between TWAN and 3 GPP AAA server/proxy is extended to enable selection of an SGW for establishment of the disclosed Sla interface. The extended SGW and protocols may be used to optimize inter-system mobility between LTE small cells and trusted WiFi. SGW and PDN Gateway (PGW) functionality is disclosed to support GTP-based IP flow mobility via multi-access (LTE and WiFi) connectivity to the same packet data network (PDN). Non-access stratum (NAS), EAP, and GTP-C protocols may also be extended to include a "multi-connection" indication in addition to existing "handover" indication. |
申请公布号 |
WO2015126999(A1) |
申请公布日期 |
2015.08.27 |
申请号 |
WO2015US16481 |
申请日期 |
2015.02.19 |
申请人 |
CONVIDA WIRELESS, LLC |
发明人 |
TOMICI, JOHN, L.;STARSINIC, MICHAEL, F.;LI, QING |
分类号 |
H04W36/14;H04W12/06;H04W36/22;H04W48/18;H04W84/12;H04W88/06 |
主分类号 |
H04W36/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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