Virtualization carrier wave migration method based on L3 and L2 layers protocol

Abstract

The invention discloses a virtualization carrier wave migration method based on L3 and L2 layers protocol, and the method mainly solves a problem of low scheduling efficiency of C-RAN base-band pool resource in prior art. The scheme comprises: a source end transmits a migration request to a carrier wave migration and control module; the carrier wave migration and control module transmits migration environment preparation message to a target end; the carrier wave migration and control module receives a message that the migration environment preparation of the target end is finished, and a migration command is transmitted; the last round of data migration copy is performed on L3 and L2 layers protocol carrier wave virtual machines by the source end, and a L1 layer protocol virtual machine caches the processed data; the carrier wave migration and control module receives a message that the data copy and migration is finished, and the module transmits the above message to the target end; the target end starts the L3 and L2 layers protocol carrier wave virtual machines generated because of migration and clears the cache data, and source end business data is transmitted to the target end through an exchange network. The method realizes the efficient utilization of resources and can be applied in C-RAN base-band pool resource scheduling.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a virtualized carrier migration method, which can be used for protocols based on L3 and L2 layers. Background technique [0002] The distributed base station structure separates the baseband processing unit BBU and the radio frequency processing unit RRU in the traditional macro base station, and connects the two through optical fibers. During network deployment, the baseband processing unit, core network, and wireless network control equipment are concentrated in the computer room, and connected to the remote radio unit deployed on the planned site through optical fiber to complete network coverage, thereby reducing construction and maintenance costs and improving efficiency. The characteristic of the current RRH+BBU distributed base station is that the RRH is fixedly connected to the processing board of a certain BBU. The RRH can only transmit the baseband signal data a...

AI Technical Summary

Problems solved by technology

However, the migration interruption time of this carrier migration solution is mostly between tens to hundreds of milliseconds, and the memory change speed of the virtual machine is faster than the memory copy speed of the migration process, resulting in the failure of the memory copy process of the virtual machine migration operation to converge.

Images