Associated task scheduling mechanism based on CoMP synchronization constraint in C-RAN framework

Abstract

The invention discloses an associated task scheduling mechanism based on CoMP synchronization constraint in a C-RAN framework. The associated task scheduling mechanism specially comprises the following steps: (1) selecting an appropriate cooperative RRU set according to a present network condition through a cell edge user; (2) predicting the system load of a next moment according to the load change situation of the system at a present moment and a previous moment through a load prediction module; (3) classifying user tasks according to QoS attribute through a task management module; (4) implementing cluster division and differentiation arrangement on virtual resources of a virtue base band pool according to the task amount and the task classification information through a VM management module; (5) reasonably scheduling associated tasks of parallel signals of the user according to the task classification information and the virtual resource allocation information through a task scheduling module. The associated task scheduling mechanism is applicable to synchronization constraint of parallel signals based on cooperative multi-point transmission (CoMP) in the C-RAN framework, and associated task scheduling with different quality of service (QoS) requirements.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a scheduling mechanism for associated tasks in a baseband pool of a novel wireless access network C-RAN (Centralized-Radio Access Network). The present invention is suitable for solving the associated task scheduling problem based on parallel signal synchronization constraints in Coordinated Multiple Points (CoMP) and different Quality of Service (QoS) requirements under the C-RAN architecture. Background technique [0002] In recent years, the increase in network traffic and the rapid growth of mobile service data traffic have brought increasingly fierce competitive pressure to operators. Operators must invest more costs in the construction and upgrading of wireless access networks. In a traditional RAN (Residential Access Network, RAN), a large number of base stations will generate expensive construction and maintenance costs as well as high site matching and lea...

AI Technical Summary

Problems solved by technology

Due to distance differences and multipath delays, the multi-channel parallel signals generated by the cooperative RRUs have problems such as delay differences and frequency offsets after they reach the baseband pool. These parallel signals need to be processed before data merging, resulting in delays and waiting overhead

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