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    • 2. 发明申请
    • SEAMLESS HANDOFF BETWEEN ACCESS NETWORKS WITH SAVED SESSION INFORMATION
    • 访问网络之间的无缝切换与保存的会话信息
    • WO2007106604A2
    • 2007-09-20
    • PCT/US2007060187
    • 2007-01-05
    • QUALCOMM INCPAYYAPPILLY AJITH TKURUNDKAR RAJEEV SNOOKALA SRIRAM NAGESHSALI VIPIN A
    • PAYYAPPILLY AJITH TKURUNDKAR RAJEEV SNOOKALA SRIRAM NAGESHSALI VIPIN A
    • H04W36/14H04W36/26
    • H04W76/041H04W36/0011H04W36/26
    • More seamless handoff between access networks is achieved by saving session information for each access network upon being handed off from the access network and invoking the saved session information upon being handed back to the access network. An access terminal establishes a first session with a first access network, which may entail performing QoS negotiation with the first access network and setting up packet filters at a packet data gateway. The access terminal exchanges data with the first access network in accordance with the configuration of the first session. The access terminal saves the first session configuration after being handed off to a second access network, establishes a second session with the second access network, and exchanges data with the second access network in accordance with the configuration of the second session. The access terminal uses the saved first session configuration upon being handed back to the first access network.
    • 通过在从接入网络切换时保存每个接入网络的会话信息并且在被递送到接入网络时调用保存的会话信息来实现接入网络之间的更无缝切换。 接入终端与第一接入网建立第一会话,可能需要与第一接入网进行QoS协商,并在分组数据网关建立分组过滤。 接入终端根据第一会话的配置与第一接入网络交换数据。 接入终端在切换到第二接入网络之后保存第一会话配置,与第二接入网建立第二会话,并根据第二会话的配置与第二接入网交换数据。 接入终端在被切回到第一接入网络时使用保存的第一会话配置。