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A method for packet dispatching of variable parameter for real-time mixed service environment

A group scheduling and mixed service technology, applied in digital transmission systems, data switching networks, electrical components, etc., can solve problems such as waste of wireless resource shares in scheduling opportunities, decrease in wireless resource utilization efficiency and system capacity, and adjustment of scheduling strategies

Inactive Publication Date: 2007-05-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Since these packet scheduling methods cannot dynamically adjust the scheduling strategy according to the change of the composition of the service queue ratio, and realize the optimal allocation of scheduling opportunities, some scheduling opportunities and wireless resource shares are wasted, resulting in a decline in wireless resource utilization efficiency and system capacity.

Method used

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  • A method for packet dispatching of variable parameter for real-time mixed service environment
  • A method for packet dispatching of variable parameter for real-time mixed service environment
  • A method for packet dispatching of variable parameter for real-time mixed service environment

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with a real-time mixed service application example.

[0030] It is assumed that the services carried by the system include two types of real-time packet services, voice and video streaming, and its service QoS parameters are listed in Table I. In the application, the ratio of voice and video stream service packet queues is M:N=1:2. In order to provide reliable QoS guarantees and fair scheduling quotas for the two types of services in the above service application environment, so as to maximize the system capacity, the variable parameter λ j The optimal value of can be obtained by the following process.

[0031] Table I voice and video service QoS parameters

[0032] business type

Packet transmission delay bound T j (ms)

Packet loss rate bound δ j

Service transmission rate requirements r j (kbps)

voice

80

0.01

...

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Abstract

The grouping schedule method for varied parameters in real-time mixed business environment comprises: determining the schedule PRI for parameters, and deciding the optimal parameter value for exact business based on business QoS fair schedule criterion; then, calculating PRI of all grouping sequences; finally, grouping and scheduling according to PRI order. This invention can construct fairer schedule PRI function according to application requirement and type, and then improves system capacity.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a grouping scheduling method in a real-time service application environment. Background technique [0002] In recent years, wireless multimedia services have developed rapidly. Among them, some real-time wireless services, such as VoIP, video communication and interactive games, have increasing application requirements. Compared with wired communication, wireless applications are easily affected by unfavorable factors such as free space propagation loss, multipath fading, Doppler frequency shift and open interference source interference, making wireless resources relatively scarce. At the same time, for real-time packet services, they are more sensitive to transmission delay than non-real-time services, and have strict QoS requirements. Therefore, in a real-time service application environment, the management mechanism used to allocate wireless resources between di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q7/38H04Q7/36H04L12/24H04L47/6275
Inventor 徐斌阳李少谦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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