Data communication method and device

Abstract

The embodiment of the invention discloses a data communication method and device. The data communication method comprises the following steps: a station STA receives a wake-up frame sent by an accesspoint AP, the wake-up frame comprise basic service set BSS parameter indication information, the BBS parameter indication information comprises BSS parameter change indication information or a targetparameter of a main BSS to which a main transceiver of the STA belongs at present, and the BSS parameter change indication information is used for indicating whether a key parameter of the main BSS ischanged when the main transceiver of the STA is in a dormancy state; and the main transceiver of the STA communicates with the AP according to the BSS parameter indication information. By adopting the data communication method disclosed by the embodiment of the invention, the successful communication of the main transceiver of the STA and the AP can be effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of wireless networks, in particular to a data communication method and device. Background technique [0002] In a Wireless Fidelity (WiFi) network, a considerable part of the energy of the device is wasted in idle listening when there is no received signal. The current traditional 802.11 protocol (802.11b / a / g / n / ac, etc.) The solution focuses on optimizing the device sleep strategy. In addition to optimizing the sleep strategy, another technical approach to reduce energy waste in idle listening of devices is to use a low power wake up receiver (Low Power Wake Up Receiver, LP-WUR) (herein referred to as WUR). The core idea is that in addition to the traditional 802.11 transceiver (802.11main radio, 802.11 main transceiver module, and WiFi main transceiver module), the receiver device (such as STA) adds a low-power wake-up receiver (WUR) part, such as image 3 As shown, when the 802.11 main transceiver module ...

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Problems solved by technology

[0004] However, the main transceiver of a STA equipped with a wake-up receiver usually has a lower duty cycle, that is to say, the main transceiver of the STA sleeps for a long time, usually several days or even months, during the sleep time , the parameters of the main BSS where the STA's main transceiver is located have changed. For example, the transmission channel between the AP and the STA's main transceiver is changed to another channel, so that when the STA's main transceiver is awakened, the original channel is still used. Communicating with the AP, this will cause communication failure

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