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

A technology for task scheduling and synchronization constraints, applied in electrical components, wireless communication, etc., can solve problems such as frequency offset, delay waiting overhead, delay difference, etc.

Active Publication Date: 2015-04-22
XIDIAN UNIV
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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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  • Associated task scheduling mechanism based on CoMP synchronization constraint in C-RAN framework
  • Associated task scheduling mechanism based on CoMP synchronization constraint in C-RAN framework
  • Associated task scheduling mechanism based on CoMP synchronization constraint in C-RAN framework

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Embodiment Construction

[0053] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that this embodiment is based on this technical solution, and provides detailed implementation and specific operation process, but the protection scope of the present invention is not limited to the present invention. Example.

[0054] Such as figure 1 As shown, the present invention is an associated task scheduling mechanism based on CoMP synchronization constraints under the C-RAN architecture, and the system includes:

[0055] Cooperative RRU: selected by each cell edge user according to the current network conditions, that is, multiple RRUs geographically separated cooperate to participate in the data transmission and reception of a user.

[0056] CoMP parallel associated tasks: Combined with the characteristics of CoMP technology, users have multiple parallel signals in the virtual baseband pool. In the signal processing operation, each step need...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
CPCH04W72/52
Inventor 杨清海赵宇荣
Owner XIDIAN UNIV
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