发明名称 |
METHOD AND APPARATUS FOR SUPPORTING HANDOFF IN AN LTE GTP BASED WIRELESS COMMUNICATION SYSTEM |
摘要 |
A single general packet radio service (GPRS) tunneling protocol (GTP) tunnel is established between an evolved Node B (ENB) and an access gateway (AGW) in a long term evolution (LTE) based wireless communication system. When ENB relocation is required, a new mobility management entity (MME)/user plane entity (UPE) sends a relocation request message to a target ENB indicating a tunnel endpoint identity (TEID) of the AGW, the identification number of a wireless transmit/receive unit (WTRU) and the packet data protocol (PDP) address of the WTRU. The new MME/UPE sends an update PDP context request message to the AGW indicating the target ENB TEID. The AGW updates a binding of the target ENB TEID with the WTRU PDP address and the identification number. A new tunnel is established between the target ENB and the AGW, and an old tunnel between the source ENB and the AGW is released. Both inter-location area (LA) and intra-LA handover scenarios are addressed. |
申请公布号 |
WO2007103369(A2) |
申请公布日期 |
2007.09.13 |
申请号 |
WO2007US05689 |
申请日期 |
2007.03.05 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION;SHAHEEN, KAMEL, M. |
发明人 |
SHAHEEN, KAMEL, M. |
分类号 |
H04W36/10;H04W36/12;H04W92/04;H04W92/14 |
主分类号 |
H04W36/10 |
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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