Wireless Device, an Access Point and Respective Methods Performed Thereby for Communicating with the Other

A method performed by a wireless device for communicating with an Access Point (AP) in a Wireless Local Area Network (WLAN) employing contention-based access to a channel, the method comprising:

• determining one or more Clear Channel Assessment Thresholds (CCATs) for data to be transmitted to the AP, wherein each CCAT is associated with a particular Quality of Service (QoS) category of the data;
• determining whether the channel is busy or free based on the determined one or more CCATs and based on signals or energy detected on the channel;
• and
• based on determining that the channel is free, transmitting the data to the AP.

An Access Point (AP) arranged to communicate with a wireless device in a Wireless Local Area Network (WLAN) employing contention-based access for radio resources, the AP comprising:

• at least one processor;
• and
• at least one memory storing computer-executable instructions that, when executed by the at least one processor, configure the AP to:
• determine one or more Clear Channel Assessment Thresholds (CCATs) for data to be transmitted to the wireless device, wherein each CCAT is associated with a particular Quality of Service (QoS) category of the data;
• determine whether the channel is busy or free based on the determined one or more CCATs and based on signals or energy detected on the channel;
• and
• based on determining that the channel is free, transmit the data to the wireless device.