Migration method and device for virtual base station in baseband pool

The invention discloses a migration method and a migration device for virtual base stations in a baseband pool. A plurality of baseband units are arranged in the baseband pool. The migration method comprises the steps executed by a first virtual base station of: measuring available bandwidth between the first virtual base station and a second virtual base station, wherein the first virtual base station and the second virtual base station belong to different baseband units in the baseband pool; estimating a service interruption interval of the first virtual base station; and selecting a migration mechanism of the first virtual base station according to the estimated service interruption interval. The migration mechanism involves configuring a public measurement interval for user equipment of the first virtual base station, or configuring a random access time slot for the user equipment of the first virtual base station, or configuring a discontinuous receiving cycle for the user equipment of the first virtual base station. By adopting the scheme provided by the invention, the user equipment in connection status is not affected by migration during the service interruption period, and lossless migration among the virtual base stations is achieved.