Coexisting method for Zigbee and WiFi (Wireless Fidelity)

A host and slave technology, applied in the field of coexistence of Zigbee and WiFi to avoid mutual interference

Active Publication Date: 2015-09-09
XIAMEN INTRETECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since both of them mainly work in the 2.4 GHz ISM frequency band, they will inevitably interfere with e...

Method used

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  • Coexisting method for Zigbee and WiFi (Wireless Fidelity)

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Embodiment Construction

[0015] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0016] As a specific example, refer to figure 1 As shown, a Zigbee and WiFi coexistence method of the present invention is applied to anti-interference communication between the host and the slave, the host includes a WiFi module and a Zigbee module, and the slave includes a WiFi slave and a Zigbee slave, including:

[0017] After the host is turned on, the WiFi module of the host scans the WiFi signals around the host, and notifies the Zigbee module of the host of the surrounding WiFi channels and the WiFi channel occupancy information of the WiFi module itself,

[0018] The Zigbee module scans the occupancy of wireless signals in the ISM frequency band around itself, and combined with the WiFi channel occupancy information, selects other idle channels for transmission, and sorts the priority according to the channel idle value, generates an initial...

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Abstract

The invention relates to the technical field of wireless communication, and provides a coexisting method for a Zigbee and a WiFi (Wireless Fidelity). The method comprises the following steps that the signal strength of the peripheral WiFi is scanned, and the occupancy status of channels of the WiFi in a space around the Zigbee is informed according to a scanning result; and the Zigbee judges channels that should be used by the Zigbee through the channel occupancy status scanned by the Zigbee and combination with the channel occupancy information of the WiFi, so that the mutual interference caused by overlapping the channels of the WiFi and the Zigbee is avoided.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a Zigbee and WiFi coexistence method. Background technique [0002] WiFi based on the IEEE802.11 standard is the mainstream technology of wireless LAN today. Its signals cover a wide variety of spaces. [0003] With the rise of the Internet of Things technology, Zigbee, as a low-complexity, low-power short-distance connection technology, is widely used in the Internet of Things technology. There are more and more cases where Zigbee and Wi-Fi coexist and work simultaneously. However, since both of them mainly work in the 2.4 GHz ISM frequency band, they will inevitably interfere with each other. This patent provides a solution to reduce the probability of mutual interference and thus better coexistence. Contents of the invention [0004] To solve the above technical problems, the present invention provides a Zigbee and WiFi coexistence method, by first scanning...

Claims

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Application Information

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IPC IPC(8): H04W48/16
CPCH04W48/16
Inventor 杨连池张国忠林松华韩崇山
Owner XIAMEN INTRETECH
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