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Two-stage C-RAN carrier migration scheduling method based on improved LR algorithm

A scheduling method and carrier migration technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as occupation, small migration bandwidth, and large amount of memory page data.

Active Publication Date: 2017-09-29
XIDIAN UNIV +1
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Problems solved by technology

The existing carrier migration scheduling strategy is to package all the load services to be migrated in the virtual base station as a whole and perform the pre-copy migration operation at the same time. During the migration process, the business is still running normally. The normal operation of each business needs to occupy a part of the bandwidth resources for the uplink and downlink transmission of business data. Therefore, the available migration bandwidth at this moment is very small, which leads to the existing carrier migration scheduling strategy. There is a problem that the migration process takes a lot of time, which will seriously affect the normal operation of the load business in the virtual base station

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  • Two-stage C-RAN carrier migration scheduling method based on improved LR algorithm
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  • Two-stage C-RAN carrier migration scheduling method based on improved LR algorithm

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[0066] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0067] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0068] like figure 1 As shown, the two-stage C-RAN carrier relocation scheduling method based on the improved LR algorithm provided by the embodiment of the present invention includes the following steps:

[0069] see figure 1 As shown, the embodiment of the present invention provides a two-stage C-RAN carrier migration scheduling method based on the improved LR algorithm (Lagrangian relaxation algorithm), including the following implementation steps:

[0070] S101: Obtain the ser...

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Abstract

The invention belongs to the technical field of the communication network, and discloses a two-stage C-RAN carrier migration scheduling method based on an improved LR algorithm. The method comprises the following steps: acquiring a business type feature of a load business in a to-be-migrated base station and a correlated variable of each specific load business in operation; according to the acquired business type feature and the correlated variable, establishing a migration scheduling mathematical optimization model based on the minimum system total service value loss by taking the situations that the business interruption time cannot exceed the maximum delay requirement and the time consuming for completing the whole migration process cannot exceed the maximum allowable migration time as the constraint condition; resolving the migration scheduling mathematical optimization model by using the two-stage migration scheduling model resolving method based on the improved LR algorithm to obtain the final migration scheduling method. By using the two-stage C-RAN carrier migration scheduling method disclosed by the invention, the defect that the existing C-RAN carrier migration scheduling method is long in migration time consuming and high in cost is effectively solved, the system total service value loss caused by completing the migration process is greatly lowered.

Description

technical field [0001] The invention belongs to the technical field of communication network architecture, and in particular relates to a two-stage C-RAN carrier migration scheduling method based on an improved LR algorithm. Background technique [0002] As people have higher and higher requirements for communication quality and communication forms, the traditional communication network architecture can no longer cope. In order to solve the shortcomings of the traditional communication network architecture, China Mobile proposed a new communication network architecture - C-RAN. This architecture constructs a baseband resource pool by centrally placing processing resources, and abstracts processing resources into virtual base stations through virtualization and software radio technology to provide services to communication users, thus greatly saving site construction Maintenance and expansion upgrade costs. The carrier migration mechanism in C-RAN is the key to realize resou...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W72/12
CPCH04W28/08H04W72/1263
Inventor 李兵兵陈文杰钱鑫高炜委
Owner XIDIAN UNIV
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