Method and device for achieving dynamic migration of virtual base stations in BBU pool

Abstract

The invention aims at providing a method, a device and a system for achieving dynamic migration of virtual base stations in a BBU pool. A second virtual base station for accepting migration of a first virtual base station is determined by utilizing a migration management device according to a migration request of the first virtual base station; the first virtual base station sends a corresponding migration relevant parameter to the second virtual base station; the second virtual base station configures a corresponding communication tunnel according to the migration relevant parameter; the first virtual base station switches a corresponding data path and an interface to the second virtual base station according to the communication tunnel. Compared with the prior art, the method, the device and the system achieve non-destructive virtual base station migration, millisecond-magnitude-order service interruption time and packet loss freeing, ensure the service quality and enable users not to feel the migration process.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a technology for realizing dynamic migration of virtual base stations in a BBU pool. Background technique [0002] Virtualization Technology (Virtualization Technology) is a commonly used means to support multiple independent base stations in a multi-core hardware unit. It allocates sufficient computer resources for each virtual base station according to the requirements of the corresponding air interface standards. , to ensure that each virtual base station is independent of each other at the operating system level. [0003] According to the statistics, it can be seen that the load of the mobile network in the radio access network fluctuates greatly. For example, the load of each base station in the second half of the night is usually much lower than the load during working hours during the day. However, in the prior art, even if the virtual base station needs to process ...

AI Technical Summary

Problems solved by technology

[0005] However, the existing virtual machine migration scheme cannot be applied to the dynamic migration of virtual base stations because, unlike traditional IT applications, virtual base stations perform real-time signal processing. Experiments show that similar memory pre-copy technology is used for LTE PUSCH stack Migration will make the virtual machine environment (such as VMware or KVM platforms) unavailable for nearly a few seconds. For each virtual base station that needs to provide real-time services, it is unacceptable to be unable to provide services for such a long time

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