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Multi-site block acknowledgement method for IEEE802.11ax network

A multi-site, block confirmation technology, applied in the direction of using the return channel for error prevention/detection, digital transmission system, electrical components, etc., can solve the problems of unfairness, without considering the transmission delay of a single device, etc., to reduce the delay cost effect

Active Publication Date: 2016-06-22
XIDIAN UNIV
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Problems solved by technology

Although this method reduces the collective delay of multiple devices, it still has the disadvantage that it does not consider the transmission delay of a single device, which leads to unfairness.
This method adopts downlink multi-user multiple-input multiple-output MIMO technology. Although it can effectively improve the downlink transmission rate, it still has the disadvantage that only access points that support downlink multiple-user multiple-input multiple-output MIMO technology can enable this method. model

Method used

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  • Multi-site block acknowledgement method for IEEE802.11ax network
  • Multi-site block acknowledgement method for IEEE802.11ax network
  • Multi-site block acknowledgement method for IEEE802.11ax network

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] Refer to attached figure 1 , the concrete steps of the present invention are as follows.

[0038] Step 1: Trigger uplink data transmission.

[0039] The LAN access point in the IEEE802.11ax network transmits a trigger frame to each station to trigger uplink data transmission.

[0040] For the format of the trigger frame, refer to the attached figure 2 , the format is that in the trigger frame, the frame control bit and the duration occupy two bits, respectively indicating the frame type of the trigger frame and the duration of the frame, and address 1 indicates the address of the LAN access point, and the occupied bits are based on the LAN The number of stations in the setting, the address 2 represents the transmission address, which occupies 6 bits, the information of each station represents the address of each station, and the occ...

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Abstract

The invention discloses a multi-site block acknowledgement method for an IEEE802.11ax network. The concrete steps include that a local area network access point triggers all sites for uplink single user transmission; the access point sets the number of sites receiving frame acknowledgement after all sites send data; the access point sends multi-site block acknowledgement reply to the sites receiving frame acknowledgement and then re-sets the number of the sites receiving frame acknowledgement and sends multi-site block acknowledgement reply until all the sites receives the multi-site block acknowledgement. According to the invention, the whole time delay caused by multi-site data and block acknowledgement transmission is reduced, and multi-site collective sending time delay and the sum of single sending time delay of the single sites are also balanced. Fairness is ensured.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a multi-site block confirmation method of an IEEE802.11ax network in the technical field of wireless communication. The invention can be used in fields such as video picture transmission under the IEEE802.11ax communication protocol to confirm the data transmission of a single user uplink, and realize the trade-off between the collective transmission delay of multiple sites and the sum of individual transmission delays of a single site. Background technique [0002] In the IEEE802.11n communication protocol, a method of using BA (BlockAcknowledgment, BA) block confirmation method to confirm data transmission is proposed. This method uses one confirmation frame to complete the response to multiple data, and there are fewer inter-frame intervals. , less media access contention reduces the delay cost between data transmission and receipt acknowledgment. However, when th...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/00
CPCH04L1/1614H04L1/1671H04L2001/0093
Inventor 陈晨赵虹惠任智源赵力强李红艳侯蓉晖杨鲲
Owner XIDIAN UNIV
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