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Bluetooth and WiFi coexistence method and device for terminal device

A terminal device, Bluetooth technology, applied in the field of Internet data communication, can solve the problems of coexistence performance degradation, WiFi performance degradation, AP data transmission speed slowdown, etc., to achieve the effect of improving coexistence performance

Active Publication Date: 2017-06-16
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for WiFi data reception, the AP does not know that the terminal device is time-division multiplexing the channel. When the terminal device allocates the channel to BT, the AP will still send data to WiFi, but at this time WiFi cannot receive the data sent by the AP. Eventually, the speed of data sent by the AP will slow down, which in turn will cause the performance of WiFi to decline or the function to be unavailable, resulting in a decline in the coexistence performance of WiFi and BT.

Method used

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  • Bluetooth and WiFi coexistence method and device for terminal device
  • Bluetooth and WiFi coexistence method and device for terminal device
  • Bluetooth and WiFi coexistence method and device for terminal device

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Embodiment Construction

[0047] As mentioned in the background technology, for WiFi data reception, the AP does not know that the terminal device is time-division multiplexing the channel. When the terminal device allocates the channel to BT, the AP will still send data to WiFi, but at this time WiFi cannot receive The data sent by the AP will eventually cause the speed of the data sent by the AP to slow down, which in turn will cause the performance of WiFi to decline or the function to be unavailable, resulting in a decline in the coexistence performance of WiFi and BT.

[0048]In order to avoid the situation where the WiFi function is unavailable, WiFi is usually used to send a special protection frame to the AP. By sending a Null Data frame with a doze flag (Doze Flag), the AP knows that the WiFi is still online, and the Null Data frame It can also be called a protection frame; the AP can also know the change of the Received Signal Strength Indication (RSSI) of the WiFi; the 802.11 protocol stipula...

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Abstract

The invention provides a bluetooth and WiFi coexistence method and device for a terminal device. The method comprises: channels are distributed to WiFi and bluetooth in a time-division multiplexing manner and thus the channels include WiFi time slices, monitoring time slices and bluetooth time slices, wherein the monitoring time slices are behind the WiFi time slices and the WiFi time slices and the monitoring time slices are distributed to the WiFi and the bluetooth time slices are distributed to the bluetooth; and within the monitoring time slices, only a protection frame is sent to a wireless access point coupled to a terminal device by the WiFi and missing packet data sent by the wireless access point are received. Therefore, receiving of the missing packet data sent by the wireless access point can be realized after completion of the working hours of the WiFi, so that the influence on the WiFi working performance by the missing packet data can be eliminated and thus the coexistence performance of the bluetooth and WiFi can be improved.

Description

technical field [0001] The present invention relates to the field of Internet data communication, in particular to a Bluetooth and WiFi coexistence method and device for terminal equipment. Background technique [0002] With the development of communication technologies, most terminal devices support a WiFi function and a Bluetooth (BlueTooth, BT) function at present. BT is a wireless technology standard that enables short-distance data exchange between fixed equipment, mobile equipment, and personal area networks. WiFi is a high-frequency radio signal that can connect terminal devices, such as personal computers, pads, mobile phones, etc., to each other in a wireless manner to realize data transmission and exchange. [0003] In the prior art, in many scenarios of terminal equipment, WiFi and BT are required to work simultaneously. When WiFi and BT work at the same time, because both WiFi and BT work in the 2.4G frequency band, the working channels are almost completely ov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/22H04W72/12
Inventor 李艳涛
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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