Virtual machine dispatching mechanism for JT-CoMP (Joint Transmission-Coordinated Multiple Points) in C-RAN (Centralized-Radio Access Network) framework

Abstract

The invention discloses a virtual machine dispatching mechanism for JT-CoMP (Joint Transmission-Coordinated Multiple Points) in a C-RAN (Centralized-Radio Access Network) framework. The virtual machine dispatching mechanism specifically comprises: (1) centralizing calculation tasks of cell edge users into a virtual baseband pool; (2) classifying protocol function modules of all users by a module classifier with a range method; (3) configuring three VMs (virtual machines) for a system, wherein each VM has a very large request queue; (4) dispatching the modules to the corresponding VMs for execution by a module dispatcher according to module classification information; (5) calculating resource information and time information by a local manager according to a dispatching scheme and feeding back the information to a global manager; and (6) adjusting a mapping scheme by the global manager according to different heuristic algorithms until an optimal scheme is obtained. The VM dispatching mechanism is suitable for solving the VM dispatching problem of a JT-CoMP scene in the C-RAN framework, and can effectively realize synchronization between cooperative RRUs (Radio Remote Units) and ensure task execution fairness among the users.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a JT-CoMP virtual machine scheduling mechanism under the C-RAN framework. Background technique [0002] In recent years, the data traffic of the mobile network has shown explosive growth, and the expenditure for building and upgrading the radio access network (Radio Access Network, RAN) has continued to increase, while the revenue has increased slowly or even decreased, which seriously affects mobile operations. business profitability. In the traditional wireless access network, operating a huge number of base stations means high capital expenditure (construction investment, site lease, etc.) and operation and maintenance expenditure (manual maintenance, energy consumption, etc.). The processing power cannot be shared between them, so the actual utilization rate of the base station is very low, and it is difficult to improve the spectrum efficiency. I...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a JT-CoMP virtual machine scheduling mechanism under the C-RAN architecture, aiming to solve the problem of Coordinated Multiple Points (CoordinatedMultiplePoints, CoMP) downlink joint transmission (JointTransmission, JT) scenario under the C-RAN architecture. VM scheduling problem

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