Congestion control method in No.3 generation mobile communication system

A mobile communication system and congestion control technology, applied in the direction of access restriction, wireless communication, network traffic/resource management, etc., can solve the problems of reducing the call-through rate, affecting customer satisfaction, etc., achieving simple ideas and solving the call-through rate. Reduced, obvious effect

Active Publication Date: 2006-10-25
ZTE CORP
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Problems solved by technology

If the system does not deal with this congestion situation, such call requests may be re

Method used

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  • Congestion control method in No.3 generation mobile communication system
  • Congestion control method in No.3 generation mobile communication system

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Embodiment Construction

[0017] In the 3G system, there are services such as real-time voice and video telephony, and non-real-time packet data services. For example, in a WCDMA system, services are divided into four categories: conversational, streaming, interactive, and background. Among them, conversational and streaming services generally have higher requirements for real-time performance and require a fixed time during the call process. bandwidth. The interactive and background services are packet data services, which are not sensitive to delay and do not require a fixed bandwidth all the time. Their rates can be dynamically adjusted according to the system load and the actual traffic of the services. Therefore, when the system is congested, the rate of the packet data service can be reduced, the system load can be reduced, and part of the system capacity can be relinquished in order to access low-priority real-time services. Among them, the reduction of the packet data service rate is realized ...

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Abstract

Basic ideas of the method are as following: when there is a new call request, based on QoS attribute of request service, and current load condition of system, the system carries out judgment of admittance; if system load does not allow access of a new requested call, as well as the new call requested service does not have capability of forced releasing other services and queuing is lot allowed, then refusing the call request, and putting the call request into virtual call queue; receiving update for system load periodically, the system checks virtual call queue; if the virtual call queue is not empty, then executing an operation of speed down for calls established in order to reduce system load. The invention solves lowered rate of successful call rate under system congestion effectively so as to raise the rate and system capacity. Advantages are: simple train of thoughts, easy of implementation.

Description

technical field [0001] The present invention relates to a congestion control method in a mobile communication system, in particular to a congestion control method in a third generation mobile communication (The 3rd Generation) (hereinafter referred to as 3G) system. Background technique [0002] In the 3G system, a code division multiple access (Code Division Multiple Access) (hereinafter referred to as CDMA) access technology is generally used. A characteristic of the CDMA system is that the system capacity is a kind of soft capacity, which is limited by interference in the uplink direction and limited by the transmit power of the base station in the downlink direction. In the CDMA system, there is generally an admission control mechanism. When a new call request is received, it is decided whether to access it according to the quality of service (Quality of service) (hereinafter referred to as Qos) attribute of the new call request service and the current load status of the...

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Application Information

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IPC IPC(8): H04W28/14H04Q3/64H04W48/06
Inventor 黄明窦建武
Owner ZTE CORP
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