Base station switchover method
A base station switching, source base station technology, applied in wireless communication, using return channel for error prevention/detection, electrical components, etc., can solve problems such as long delay, occupation, reducing system capacity, etc., and achieve the effect of reducing processing load
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[0025] In the embodiment of the present invention, first place the ARQ entity and the ARQ first-level cache in the MAC (Medium Access Control) layer in the base station, and place the ARQ entity and the ARQ primary buffer in the PDCP (Packet Data Convergence Protocol) in the access gateway. layer) to set the ARQ secondary cache. The content of the ARQ secondary cache is the IP packet after header compression, i.e. the PDCP PDU. The content in the ARQ primary cache is MAC PDU, and the MAC PDU has two data composition methods: 1), The original PDCP service data unit SDU appends or does not append MAC header information. In this case, the MAC PDU and PDCP PDU have a 1-to-1 relationship; 2), the PDCP SDU is concatenated / segmented according to a fixed length, and then the MAC header is appended or not appended In this case, the relationship between the MAC PDU and the PDCP PDU is 1-to-many, many-to-1 or many-to-many. The capacity of the ARQ L2 cache is equal to or slightly larger t...
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