Fast handover method for IEEE 802.11 wireless lan networks

A technology for fast switching and switching preparation, applied in the direction of data exchange, electrical components, transmission system, etc. through path configuration

Active Publication Date: 2005-11-23
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
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  • Fast handover method for IEEE 802.11 wireless lan networks
  • Fast handover method for IEEE 802.11 wireless lan networks
  • Fast handover method for IEEE 802.11 wireless lan networks

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Embodiment Construction

[0047] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments are described below to explain the present invention by referring to the figures.

[0048] figure 1 It is a block diagram of a mobile terminal for a fast handover method optimized for an Institute of Electrical and Electronics Engineers (IEEE) 802.11 network according to an embodiment of the present invention. exist figure 1 Among them, the mobile terminal 100 includes: a first transceiver 10, a second receiver 20, a first signal processor 30, a second signal processor 35, a comparator 40, a timer part 50, a neighbor access point (AP) list A manager 60 , a memory 70 , and a controller 80 . It is to be understood that the mobile terminal 100 may include other components than those mentioned above.

[0049] The first transceiver 10 receives data from an A...

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Abstract

A fast handover method optimized for IEEE 802.11 networks. In a wireless local area system including a mobile terminal and at least two wireless access points (APs) that communicate with the mobile terminal over a unique radio channel, the fast handover method includes receiving a beacon frame signal from the serving AP and the neighbor APs of the mobile terminal; generating a first signal to determine a state of each of the neighbor APs based on the beacon frame signal received from each of the neighbor APs; comparing the first signal with predefined thresholds, classifying the neighbor APs into a detected AP, a candidate AP, and a target AP according to a result of the comparison, and storing the classification result in a neighbor AP list; and selecting an AP for the handover based on the classification result in the neighbor AP list.

Description

technical field [0001] The present invention generally relates to a fast handover method. More particularly, the present invention relates to an Institute of Electrical and Electronics Engineers (IEEE) 802.11 network optimized fast handover method for supporting fast handover of a node through pre-operation for fast handover. Background technique [0002] Recently, with rapid growth of Internet applications, development of wireless communication technology, and improvement in performance of mobile terminals such as portable computers and personal digital assistants (PDAs), a large number of users use wireless Internet. In a wireless Internet environment, a mobile terminal changes its network point of attachment from time to time due to location movement. [0003] In order for a mobile terminal to perform wireless Internet communication, even when the mobile terminal moves from its home network to a foreign network, high-quality Internet service similar to its home network s...

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Application Information

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IPC IPC(8): H04L12/28
CPCH04W36/00H04W36/0083H04W36/30
Inventor 韩延熙张僖真李忠勋
Owner SAMSUNG ELECTRONICS CO LTD
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