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Packet dispatching and channel distributing method for HSDPA system

A technology of channel allocation and group scheduling, applied in transmission systems, digital transmission systems, and communication between multiple stations, etc., can solve the problems of low system resource utilization efficiency and unreasonable scheduling.

Inactive Publication Date: 2009-02-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0006] In order to solve the problem that the existing packet scheduling method in the HSDPA system cannot be reasonably scheduled according to the real-time QoS status of the service in a multi-service application environment, and the system resource utilization efficiency is low, the present invention proposes a method applied in the multimedia service environment of the HSDPA system Group scheduling and channel allocation methods based on QoS service monitoring, while using multi-user diversity to improve system resource utilization efficiency

Method used

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  • Packet dispatching and channel distributing method for HSDPA system
  • Packet dispatching and channel distributing method for HSDPA system
  • Packet dispatching and channel distributing method for HSDPA system

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Embodiment Construction

[0035] The parameter setting in the algorithm application will be illustrated below in conjunction with the typical voice, video stream and interactive WWW mixed service application examples of the 3G system.

[0036] Table 1 has listed the packet transmission time delay boundary and service expected throughput QoS parameters of the above service types. By substituting these parameters into the scheduling priority function given in the first step of the algorithm description, the packet queue priority calculation criteria for these three different services can be obtained respectively. Since voice and video streaming services are real-time packet services, while WWW services are non-real-time services, in order to better guarantee packet transmission delay for real-time services, the delay priority weighting coefficient of voice and video streaming services can be α j Set to 0.8, and the WWW business delay priority weighting coefficient α j Set to 0.5. average packet transfe...

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Abstract

This invention relates to group and signal channel distribution method of HSDPA system, which belongs to wireless communication field group and materials distribution technique. The system is composed of circle group dispatching process and signal distribution process, wherein, dispatching process designs dispatch priority function according to business QoS demands and business current QoS level for grouping; re-dividing signal channel in distribution process and then adopting transmission to distribute remaining signal channel by use of signal channel and rules.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to group scheduling and channel resource allocation technology for multimedia service applications. Background technique [0002] In order to improve the packet data transmission capability of the UMTS / WCDMA system, 3GPP has added the support of the high-speed downlink shared transport channel (HS-DSCH) to the packet service in its Release 5 protocol specifications, and made favorable changes to the original network architecture. Adjustment of high-speed packet data transmission: transfer the radio resource management function from RNC (Radio Network Controller) to Node B closer to the air interface, and propose the 3.5G system concept of high-speed downlink packet access (HSDPA). Compared with the downlink packet data transmission mode in the earlier version Release 99, HSDPA adopts multiple wireless transmission enhancement technologies such as fast channel adaptation of the ph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04Q7/38H04B7/26H04Q7/36H04L1/00H04L12/861
Inventor 徐斌阳李少谦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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