Method for controlling pocket data transmission rate in mobile communication network and system thereof

A mobile communication network and packet data technology, applied in the field of packet data transmission rate control, can solve the problems of transmission layer congestion, low user service quality, transmission layer bandwidth utilization and application layer rate, etc. , Improve the utilization rate, control the effect of fine granularity

Inactive Publication Date: 2006-11-15
HUAWEI TECH CO LTD
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Problems solved by technology

[0013] In practical applications, the above scheme has the following problems: the bandwidth utilization rate of the transport layer and the rate of the application layer are low under congestion conditions, and the user's service quality is low.
[0014] The main reason for this situation is that if the system accesses too many users and causes congestion at the transport layer, the actual bandwidth of Iub transmission cannot meet the peak rate of all users
Practice has proved that if there is no flow control processing when there is a large amount of concurrent data in this case, the bandwidth utilization rate of Iub transmission is very low, only about 20% of the actual bandwidth, and the user service quality drops sharply

Method used

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  • Method for controlling pocket data transmission rate in mobile communication network and system thereof
  • Method for controlling pocket data transmission rate in mobile communication network and system thereof
  • Method for controlling pocket data transmission rate in mobile communication network and system thereof

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Embodiment Construction

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] The present invention adopts the packet switching (Packet Switching, "PS") data service carried by RLC in AM mode, and tracks the current link status by detecting the retransmission rate of RLC in AM mode in real time. Once the retransmission rate is found to be too high, It indicates that the link is congested, and the transmission format (Transport Format, referred to as "TF") with a higher rate is restricted during MACD scheduling, and the congestion of the link is alleviated by reducing the MACD throughput.

[0052] In addition, a method of combining TF adjustment and RLC sending window adjustment can also be used to ensure that the RLC retransmission rate of the AM mode is always controlled within a reasonable range. If the MACD currently has only one...

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Abstract

The invention discloses a grouped data transferring speed controlling method and the system in mobile communication network that could improve the transmission layer bandwidth utilization and application layer speed under congestion situation. The RLC identity could take testing for retransmission ratio of data block to trace the congestion situation. By the method of adjusting the size of sending window and the combination of restricting or restoring operation schedulable TF in MACD by RLC identity, the data transmission speed would be controlled.

Description

Technical field [0001] The present invention relates to mobile communication technology, in particular to the control of packet data transmission rate in a mobile communication network. Background technique [0002] Since the 1980s, cellular mobile communication has met the communication requirements of people in work and life in modern society with its convenient and flexible features, showing a momentum of rapid development. At present, one of the three main third generation mobile communication (The Third Generation, "3G") systems in the world is Wideband Code Division Multiple Access (WCDMA). [0003] The WCDMA system consists of three parts, namely the Core Net ("CN"), the Universal Mobile Communication System Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, "UTRAN") and the User Equipment (User Equipment, "CN"). UE”). [0004] Among them, CN is used to handle the switching and routing of voice calls and data connections in the WCDMA system with exter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/24
Inventor 黄凯涛李伽熊华
Owner HUAWEI TECH CO LTD
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