Communication method of a wireless network card
A technology of a wireless network card and a communication method, which is applied in the field of communication, and can solve problems such as the decrease of transmission efficiency and the increase of transmission time, and achieve the effect of ensuring fast communication
Active Publication Date: 2016-06-22
GUANGDONG UNIV OF TECH
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Problems solved by technology
When more and more network cards work on one channel and the network load increases, the sending time increases and the sending efficiency drops sharply
Method used
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[0022] Such as figure 1 As shown, the working frequency band of the wireless network card is divided into a control channel and several service signals, figure 1 Middle channel 4 is a control channel, and the rest are service channels. The choice of the control channel is to try to avoid channels that are often interfered with, such as radar, GPS and other interference. All wireless network cards used in the present invention must be compatible with each other, and can be 802.11a or 802.11b / g at the same time. The service channel network card is optional. When there is no service channel network card, the system has only one network card working on the control channel to transmit urgent and important data. This scenario does not belong to the main scenario of the present invention, but it is not allowed to exist. If there is no special explanation in this description, the service channel network card in the system is taken as an example.
[0023] Service channels can be pr...
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The invention discloses a wireless local area network card based communication method. The method includes: when a system detects presence of a wireless local area network card, loading a relevant wireless local area network card drive and reporting insertion of the local area network card to a user daemon process, and after the user daemon process receives the notification, loading a drive gluing layer module and establishing a virtual network card; dividing a wireless frequency channel into a control channel and multiple service channels; when presence of one wireless local area network card is detected, setting the wireless local area network card as a control channel local area network card which is operated on the control channel; when presence of two wireless local area network cards is detected, setting one of the two wireless local area network cards as the control channel local area network card which is operated on the control channel, and setting the other wireless local area network card as a service channel local area network card which is operated on the service channel; and using the control channel local area network card for broadcasting channel coordination information of the service channel local area network card according to needs. The method is capable of guaranteeing rapid transmission of urgent important data and guaranteeing transmission of common service data. Besides, the channels for common service data transmission can be coordinated according to needs.
Description
technical field [0001] The invention belongs to the field of communication, in particular to a communication method of a wireless network card. Background technique [0002] In the vehicle network composed of vehicles and roadside base stations in the traffic environment, 802.11 wireless communication is usually used to exchange data. In the traffic environment, data has different importance and urgency, which can be divided into urgent important data and general service data. Emergency important data include channel control information and important traffic information, such as service channels already in use, car accidents, vehicle deceleration in front, etc. These data should be transmitted as soon as possible and completely to notify adjacent vehicles and traffic management agencies; ordinary service data Including ordinary entertainment and business information, such as emails, news, broadcasts, etc. Compared with urgent and important data, the transmission time is all...
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IPC IPC(8): H04L5/00H04L1/22
Inventor 余荣谢胜利陈钦波谢鹏
Owner GUANGDONG UNIV OF TECH