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Method, system and equipment for alarming and processing congestion

A technology of equipment and congestion state, applied in the field of wireless communication, it can solve problems such as damage to service quality of service, link rate oscillation, data congestion, etc.

Active Publication Date: 2011-10-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different performance of nodes on the network, coupled with the complexity of the wireless access bearer network, bursts and various services are in the process of changing, improper static parameter configuration will damage the service quality of services and increase the packet loss rate of burst data. cause link rate oscillation
Therefore, the existing technology cannot solve the problem of data congestion well

Method used

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  • Method, system and equipment for alarming and processing congestion
  • Method, system and equipment for alarming and processing congestion
  • Method, system and equipment for alarming and processing congestion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0141] The data receiving end monitors the congestion status of the system, judges that it is congested, constructs an OAMPDU message, and notifies the data sending end to process it. Such as Figure 3B As shown, the alarm sending process of the data receiving end is as follows:

[0142] P1: Device power-on initialization, configure QOS parameters such as queue and DSCP according to static parameters, configure 802.3ah alarm messages according to static parameters, configure congestion threshold, burst congestion threshold and timers T1, T2, and T3 according to static parameters.

[0143] P2: Start the scan timer T1, start to periodically scan the fullness of the receiving buffer, and cache the latest two scan results. Compare the latest scanning result with the congestion threshold. If the scanning result is not greater than the congestion threshold, continue to perform periodic scanning. If the scanning result is greater than the set congestion threshold, enter the next pro...

Embodiment 2

[0148] The data sending end receives the OAMPDU message sent by the peer end, parses the message structure, and selects multiple queues from the local end queue for parameter adjustment. Such as Figure 3C As shown, the data sender queue selection process is as follows:

[0149] P1: The device is powered on and initialized, and QOS parameters such as queue and DSCP are configured according to static parameters, and 802.3ah alarm messages are configured according to static parameters.

[0150] P2: The queue selection module receives the Event Notification OAMPDU alarm message, parses the content of the OAMPDU message Link Event TLV#2 Congestion Info 1 and Link Event TLV#3 Congestion Info2, and obtains the peer information: the most congested queue RSqs, the largest real-time bandwidth queue RSqt , and determine the alarm message type according to the Flag flag: Critical Event or Dying Gasp.

[0151] P3: Match the RSqt queue parameters with all the queue parameters of the loca...

Embodiment 3

[0161] The congestion type in the alarm message received by the data sender is Dying Gasp. A large number of bursts cause the link to be in a critical congestion state. Through the rapid response mechanism of the data sender system, the congestion recovery is quickly completed, and the parameters of the local end are adjusted after the congestion is restored. It is better compatible with the peer system. Such as Figure 3D As shown, the processing flow is as follows:

[0162] P1: The congestion dynamic processing module at the data sending end receives the message requesting to adjust queue parameters, judges that the congestion type belongs to Dying Gasp (congestion caused by the burst of a large number of packets received at the receiving end), obtains the queue information to be adjusted, and enters the fast congestion recovery processing flow .

[0163] P2: Determine whether the RED mechanism is enabled for the queue to be adjusted, and perform different processing accor...

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Abstract

The embodiment of the invention discloses a method, a system and equipment for alarming and processing congestion, and relates to the technical field of wireless communication. The method, the system and the equipment are used for relieving the congestion state at a data receiving terminal. In the invention, the data receiving terminal in a data congestion state transmits an alarming message that the data receiving terminal is in the congestion state to a data transmitting terminal; and the data transmitting terminal adjusts lost packet control parameters of a sent message buffer queue in the data transmitting terminal according to the alarming message, so that the lost packet probability of the selected queue is increased, and the selected queue is subjected to lost packet control according to the adjusted lost packet control parameters. In the invention, the lost packet control parameters of the sent message buffer queue are adjusted at the data transmitting terminal to ensure that the lost packet probability of the data transmitting terminal is increased, so that the data packets transmitted to the data transmitting terminal are reduced; therefore, the congestion state at the data receiving terminal is effectively relieved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a congestion warning and processing method, system and equipment. Background technique [0002] With the rapid development of wireless communication technology, the services provided by wireless network communication have gradually evolved from traditional voice services to diversified data services and multimedia services, and the scale of 3G wireless access network applications has expanded to 4G long-term evolution (LTE) core network As commercial use is about to take place, the bandwidth requirements of the transmission network will also increase exponentially. The mobile access and bearer network needs to face the transition from the transmission mode based on circuit switching to the IP bearer network characterized by packet switching, and evolve to an all-IP bearer network. In order to improve the utilization efficiency of transmission resources and meet the increasin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/08H04L12/56
Inventor 刘满朝张晓奎杨勇张卫国
Owner DATANG MOBILE COMM EQUIP CO LTD
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