User face data inverse-transmitting method for realizing the switching across base station
A technology for user plane data and cross-base stations, applied in digital transmission systems, data exchange networks, transmission systems, etc., can solve the problems of long data processing paths, increased handover processing delays, and increased handover delays to reduce processing time latency, shortened latency, reduced protocol processing, and the effects of data replication between layers
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[0030] In the present invention, the user plane receives data, stores the PDU of the message in the upper layer, and informs the lower layer to perform protocol processing on the message; after the message is sent successfully, the upper layer deletes the PDU of the corresponding message according to the trigger of the lower layer; when switching, the source The upper layer of the side base station sends the stored PDU of the message that needs to be back-transmitted to the target side base station.
[0031] figure 1 It is the flow chart of the user plane data reverse transmission in the cross-base station handover in the present invention, such as figure 1 As shown, the implementation process of user plane data back-transmission for cross-base station handover includes the following steps:
[0032] Step 101: When the user plane receives data, a mapping relationship between the GTPU layer, the PDCP layer, and the RLC layer is established layer by layer. Base stations produced by di...
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