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An associated task scheduling mechanism based on comp synchronization constraints under c-ran architecture

A task scheduling and synchronization constraint technology, applied in electrical components, wireless communications, etc., can solve the problems of frequency offset, delay waiting overhead, delay difference, etc., to improve utilization, improve utilization efficiency, and narrow the search range. Effect

Active Publication Date: 2018-03-27
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

Method used

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  • An associated task scheduling mechanism based on comp synchronization constraints under c-ran architecture
  • An associated task scheduling mechanism based on comp synchronization constraints under c-ran architecture
  • An associated task scheduling mechanism based on comp synchronization constraints under c-ran architecture

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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 constraints under the C-RAN architecture, which specifically includes: (1) cell edge users select a suitable cooperative RRU set according to the current network conditions; (3) The task management module classifies user tasks according to the QoS attributes; (4) The VM management module classifies the virtual tasks according to the task volume and task classification information The virtual resources of the baseband pool are divided into clusters and differentiated configurations; (5) The task scheduling module reasonably schedules the associated tasks of the user's parallel signals according to the task classification information and virtual resource configuration information. The present invention is suitable for solving the associated task scheduling problem based on parallel signal synchronization constraints in Coordinated Multipoint Transmission (CoMP) under the C-RAN framework and having 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 Patents(China)
IPC IPC(8): H04W72/12
CPCH04W72/52
Inventor 杨清海赵宇荣
Owner XIDIAN UNIV
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