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Transmission method and transmission device for aggregate media protocol data unit (A-mpdu) messages

A message and device technology, applied in the field of communication, can solve the problem of low system throughput, achieve the effect of improving throughput and ensuring reliability

Active Publication Date: 2012-08-01
NEW H3C TECH CO LTD
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  • Claims
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Problems solved by technology

[0010] In the above implementation, A-mpdu packets need to be aggregated according to the maximum number of bytes of A-mpdu packets that can be aggregated at the fourth rate, and the maximum bytes of A-mpdu messages that can be aggregated at the fourth rate The number will be less than the maximum number of bytes of A-mpdu packets that can be aggregated in other gears (such as the first gear rate); therefore, when there is a large amount of traffic that needs to be transmitted, if the A -The maximum number of bytes of the mpdu message to aggregate the A-mpdu message, the throughput of the system is not high

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  • Transmission method and transmission device for aggregate media protocol data unit (A-mpdu) messages
  • Transmission method and transmission device for aggregate media protocol data unit (A-mpdu) messages
  • Transmission method and transmission device for aggregate media protocol data unit (A-mpdu) messages

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Embodiment Construction

[0046] The present invention proposes a kind of transmission method of A-mpdu message, improves the throughput of the system by dynamically selecting the number of speed files, and guarantees the reliability of the system; and this method is used in wireless network (such as wireless local area network) to A-mpdu packets are transmitted, such as figure 2 As shown, the method may include the following steps:

[0047] Step 201, using packet loss rate information to select a first gear rate. For example, calculate the throughput of each rate based on the packet loss rate, and select a rate with the highest throughput as the first rate.

[0048] Step 202, sequentially obtain the i-th gear speed lower than the first gear speed, 2<=i<=preset value; wherein, the preset value is the maximum speed gear number; for example, because the fourth gear speed is usually used in practical applications , so the default value can be 4.

[0049] In the process of sequentially obtaining the i-...

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Abstract

The invention discloses a transmission method and a transmission device for aggregate media protocol data unit (A-mpdu) messages. The method includes: selecting a first gear rate by packet loss rate information; sequentially obtaining an i gear rate which is lower than the first gear rate, and calculating the number of maximum bytes of the A-mpdu massages aggregated by the i gear rate; when the maximum bytes is less than a threshold of designated aggregated number of bytes, aggregating the A-mpdu messages by the maximum byte number of A-mpdu massages which can be aggregated by the i gear rate to the first gear rate, and sending the aggregated A-mpdu messages. According to the transmission method and the transmission device for A-mpdu messages, the throughput of a system can be improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and equipment for transmitting A-mpdu messages. Background technique [0002] Under the acceleration mechanism of the MAC (Media Access Control, Media Access Control) layer, multiple MPDUs (MAC Protocol Data Unit, MAC layer protocol data unit) are assembled into a message chain, and this message chain is called A-mpdu (Aggregation -mpdu, aggregated mpdu) message; in the sending process of the A-mpdu message, a PLCP (Physical Layer Convergence Procedure, physical layer convergence process) header is used, and the channel is only preempted once, thereby reducing PLCP transmission and preempting Waiting time and other ways to improve channel utilization and bandwidth utilization, and increase system throughput. [0003] Since it is currently stipulated that a QoS (Quality of Service, quality of service) AP (Access Point, access point) can obtain a maximum TXOP (Trans...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/70
Inventor 张巍巍
Owner NEW H3C TECH CO LTD
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