Realtek Semiconductor Inc.

Chuan-hu Lin

Chung-yao Chang

Hao-Han Hsu

A wireless access point apparatus includes a mixer, an analog low-pass filter (ALPF), an analog-to-digital converter (ADC), a radar detector and a controller. The mixer is configured to mix a wireless signal and a carrier signal for performing frequency conversion on the wireless signal. The ALPF with a passband is configured to perform filtering on the wireless signal, so as to filter out a signal component of the wireless signal out of the passband. The ADC is configured to convert the wireless signal from an analog form to a digital form. The radar detector is configured to detector whether the wireless signal includes any radar signal. The controller is configured to adjust a carrier frequency of the carrier signal depending on a determination result of the radar detector for switching between a dynamic frequency selection (DFS) channel, a non-DFS channel and a composite channel.

Wireless access point apparatus and channel switching method thereof

The present invention discloses a signal receiving apparatus having phase compensation mechanism. A first and a second receiving path of a receiving circuit perform frequency down-conversion and analog-to-digital conversion on an input signal to generate a first and a second receiving signals. The first and the second receiving paths uses a RF training signal generated by a RF training signal generation circuit as the input signal when a phase compensation is performed, and use a data signal from an antenna circuit as the input signal when a beamforming signal receiving is performed. A phase difference calculation circuit of the receiving circuit performs cross-correlation operation on the first and the second receiving signals to generate a compensation signal according to a phase difference between the first and the second receiving paths. A phase compensation circuit of the receiving circuit performs compensation on the first receiving signal or the second receiving signal such that the first receiving signal and the second receiving signal have substantially identical phases after compensation.

Signal receiving apparatus and operation method thereof having phase compensation mechanism

A method of switching an operation mode of a first multi-link device includes the first multi-link device establishing a plurality of links to a second multi-link device, and the first multi-link device determining according to a channel condition whether to receive a plurality of streams via the plurality of links or via one of the plurality of links.

Multi-link device and method of switching operation mode of multi-link device

A wireless device includes a time-sensitive queue, an access category queue, a controller, and a transmitter. The access category queue is associated with an access category and a link. The controller is coupled to the access category queue, and is used to acquire a transmission opportunity according to a set of contention parameters of the access category. The transmitter is coupled to the controller and the time-sensitive queue, and is used to when a transmission opportunity is acquired, if the time-sensitive queue contains data, generate a data frame according to the data in the time-sensitive queue, and transmit the data to another wireless device via a link.

Growing community of inventors

Hsinchu, Taiwan

Chuan-hu Lin