Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for regulating maximum message size

A technology of maximum message length and message, applied in network traffic/resource management, digital transmission system, electrical components, etc., can solve the problems that the system throughput cannot reach the maximum, waste of system software and hardware resources, and retransmission of MPDU is too much , to save software and hardware resources, improve system throughput, and save channel resources

Inactive Publication Date: 2012-01-11
NEW H3C TECH CO LTD
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The disadvantages of the prior art are: due to the existence of channel interference, the length of the A-MPDU message sent each time is not the optimal result, resulting in that the system throughput cannot reach the maximum; Many MPDUs are retransmitted after being interfered, resulting in wasted channel resources, and because each aggregation and retransmission consumes system resources, system software and hardware resources are wasted

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for regulating maximum message size
  • Method and device for regulating maximum message size
  • Method and device for regulating maximum message size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] figure 2 The flow chart of the method for adjusting the maximum message length of A-MPDU provided by the embodiment of the present invention, such as figure 2 As shown, the specific steps are as follows:

[0059] Step 200: Preset error packet rate tolerance upper limit PER up And error packet rate tolerance lower limit PER down .

[0060] Among them, PER up down . PER up 、PER down The value of can be determined empirically, for example: PER up Can be 10%, PER down Can be 15%.

[0061] Step 201: The sending and receiving parties negotiate to determine the maximum message length L of the A-MPDU max .

[0062] Step 202: The sender initializes L 1 = L max , initialize the packet error rate PER 0 =0.

[0063] Among them, L 1 Indicates the maximum packet length used by the sender when assembling the first A-MPDU pa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and a device for regulating a maximum message size. The method comprises the following steps that: the tolerance upper limit and the tolerance lower limit of a wrong packet rate are preset, wherein the tolerance upper limit of the wrong packet rate is smaller than the tolerance lower limit of the wrong packet rate, a sender aggregates medium access control protocol data units (MPDUs) in a send buffer according to the maximum message size of a current aggregate medium access control protocol data unit (A-MPDU) to obtain an A-MPDU message; the sender transmits the A-MPDU message, after transmission, the wrong packet rate of the message is counted, and when the wrong packet rate is smaller than the tolerance upper limit of the wrong packet rate, the maximum message size of the current A-MPDU is enlarged; when the wrong packet rate is greater than the tolerance upper limit of the wrong package rate, the maximum message size of the current A-MPDU is shortened; and otherwise the maximum message size of the current A-MPDU is kept. By the method, the throughput of a transceiver is increased.

Description

technical field [0001] The present invention relates to the technical field of message aggregation, in particular to a method and a device for adjusting the maximum message length of an aggregated medium access control protocol data unit (A-MPDU, Aggregate MAC Protocol Data Unit). Background technique [0002] In order to improve the throughput, the Institute of Electrical and Electronics Engineers (IEEE, Institute of Electrical and Electronics Engineers) 802.11n has made a series of improvements to the Medium Access Control (MAC, Medium Access Control) layer of 802.11, converging the MAC protocol data unit ( A-MPDU, Aggregate MAC Protocol Data Unit) transceiver is one of them. [0003] The A-MPDU technology aggregates multiple MPDU messages into one A-MPDU message for transmission. figure 1 It is a schematic diagram of the structure of the A-MPDU message, such as figure 1 As shown, the A-MPDU message only uses one physical layer (PHY) header, and the channel only needs to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/56H04L1/00H04W28/06H04L47/36
Inventor 李韬王维兴
Owner NEW H3C TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com