Vertical switching method and vertical switching device

A technology of vertical switching and switching probability, applied in the field of Internet of Vehicles, can solve the problems of unable to meet the switching needs of users, and difficult to guarantee the network connection time and status

Active Publication Date: 2014-02-19
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a heterogeneous wireless network environment, high-speed mobile end users need to access the network anytime and anywhere. However, during the vertical handover process, due to the different preferences of end users for network selection and the difficulty in guaranteeing the network connection time and status after handover, it is impossible to Meet the switching needs of users

Method used

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  • Vertical switching method and vertical switching device
  • Vertical switching method and vertical switching device
  • Vertical switching method and vertical switching device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] When the priority mode selected by the user is the network continuous priority mode, the switching probability P under the movement trend of the moving carrier h1 As the switching probability P of the mobile terminal switching to the access network in the network persistent priority mode th ;

[0047] Specifically, the movement trend of the moving carrier refers to a state that the mobile terminal on the moving carrier is far away from or close to the network access point. The movement trend of the mobile carrier is an important parameter for triggering vertical handover, because it can affect the time for maintaining the network after network access, the number of handovers, and the like. The movement trend of the moving carrier is forward, and it can be considered that the moving track of the moving carrier is close to a straight line in a relatively short period of time. figure 2 It is a schematic diagram of the motion model between the motion carrier and the netw...

Embodiment 2

[0074] When the priority mode selected by the user is the network continuous priority mode, the switching probability P of the mobile terminal switching to each of the access networks th is: event h occurs simultaneously on the mobile terminal 3 、h 4 、h 5 and h 1 The probability P(h 3 h 4 h 5 h 1 );

[0075] When the priority mode selected by the user is the network bandwidth priority mode, the switching probability P of the mobile terminal switching to each of the access networks bh is: event h occurs simultaneously on the mobile terminal 3 、h 4 、h 5 and h 2 The probability P(h 3 h 4 h 5 h 2 );

[0076] When the priority mode selected by the user is the network fee priority mode, the switching probability P of the mobile terminal switching to each of the access networks ch is: event h occurs simultaneously on the mobile terminal 3 、h 4 and h 5 The probability P(h 3 h 4 h 5 ) and multiplied by the normalized value α of the network fee;

[0077] When the...

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Abstract

The invention discloses a vertical switching method. Information of each access network and a priority mode selected by a user which can be accessed at present by a mobile terminal on a motion carrier are acquired; under the priority mode selected by the user, switching probabilities of the mobile terminal are determined when the mobile terminal is switched to each of the access networks, and the mobile terminal is switched to the other access networks when the switching probability of the present access network is smaller than switching probabilities of other access networks. The invention further discloses a vertical switching device. Through the technical scheme, not only can preference of the user be met, but also switching quality can further be guaranteed, and unnecessary switching is reduced.

Description

technical field [0001] The invention relates to a vertical switching technology in the field of Internet of Vehicles, in particular to a vertical switching method and device. Background technique [0002] The Internet of Vehicles is the Internet of Vehicles, which is a hot spot in the research of Internet of Things technology and its application demonstration. With the development of the Internet of Vehicles, the various networks involved in the Internet of Vehicles tend to converge. Through the integration of heterogeneous networks, each network can give full play to its own advantages to meet the needs of users for the network. [0003] At present, the wireless access technologies involved in the Internet of Vehicles mainly include: 1) Wireless Access in the Vehicular Environment (WAVE), WAVE is mainly used for vehicle wireless Communications, DSRC) or the basis for in-vehicle communication, it can support more advanced hotspot switching, mobile environment, security and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/14H04W36/26
Inventor 王尚广范存群杨放春孙其博邹华
Owner BEIJING UNIV OF POSTS & TELECOMM
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