A mobility management method of the automatic retransfer request
A technology of automatic retransmission request and management method, applied in the direction of using return channel for error prevention/detection, etc., can solve problems such as reducing system capacity and occupying additional target cell resources, etc., achieving low system overhead, shortening handover time, and reducing time delayed effect
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[0019] FIG. 1 is a schematic diagram of a system structure according to the present invention, including a user plane protocol stack structure of a source base station, a target base station, and an access gateway. Wherein, the words "AGW user plane", "source E-Node B user plane" and "target E-Node B user plane" in the figure are the titles of each part in the figure, rather than components. The figure respectively illustrates the user plane protocol stack structure and connection relationship of the three nodes. It is not ruled out that the protocol stack also includes other protocol layers, and only the protocol layers related to the present invention are drawn in this figure.
[0020] As shown in Fig. 1, a source base station, a target base station and an access gateway (AGW) are interconnected with each other. The source base station E-Node B (Node B) user plane protocol stack 120 includes a MAC layer 121 and a physical layer 128, wherein, the MAC layer 121 is provided wi...
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