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A network enhancement node for wireless network

A wireless network and wireless local area network technology, applied in the field of network enhancement nodes, can solve problems such as delays during data transmission, and achieve the effects of avoiding delays, improving service quality, and improving flexibility

Active Publication Date: 2017-10-03
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Maintaining thousands of access nodes in this system is very challenging
[0004] 2. Dealing with the complexity of access nodes is also a challenging issue
Since all delay-sensitive functions (e.g., ACK frames) are implemented at the access controller, this will cause a delay during data transmission

Method used

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  • A network enhancement node for wireless network
  • A network enhancement node for wireless network
  • A network enhancement node for wireless network

Examples

Experimental program
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Embodiment Construction

[0027] The present invention is mainly based on following recognition:

[0028] 1. A centralized controller in the access network provides a virtual access point (VAP) for WiFi devices in the form of a cloud, which can operate like a conventional access node for WiFi devices, e.g. For the generation and decryption of MAC frames.

[0029] 2. A wireless termination point (WTP) is a lightweight access node with a WLAN card that only sends and receives MAC frames, and generates ACK frames.

[0030] 3. Implement a software-defined network (Software Defined Network, SDN)-based switch between WTP and VAP, which has a switching table that specifies the direct correspondence between VAP and WTP, such as which frame is to / from which WTP / WAP . The switching table in the SDN switch is configured by the SDN controller.

[0031] 4. When performing seamless access node switching, it is only necessary to change the corresponding relationship between the VAP and the WTP in the SDN switch, and...

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PUM

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Abstract

The invention provides a network enhancing node for a wireless network. According to an embodiment of the present invention, the network enhancement node for a wireless network includes: at least one wireless termination point, at least one virtual access node, and an SDN switching module, and the wireless termination point communicates with one or A plurality of said virtual access nodes are associated.

Description

technical field [0001] The invention relates to communication technology, in particular to a network enhancement node for wireless network. Background technique [0002] WiFi has become a very common access technology in homes, businesses, universities and hotspots. However, the ever-increasing large-scale deployment of WLANs poses some technical challenges. One of them is the complexity of managing a large number of access nodes, where this complexity is further increased due to different designs of the access nodes. [0003] 1. Some WLANs are large in size. For example, a WLAN run by a large enterprise or university may include hundreds or even thousands of access nodes. Maintaining thousands of access nodes in this system is very challenging. [0004] 2. Dealing with the complexity of access nodes is also a challenging issue. For example, some recent requirements or technologies have caused access nodes to have increasing complexity, such as network virtualization, r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/801H04W36/08H04W36/18H04W88/16
Inventor 杨水根宾梵翔温海波
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD