Realtek Semiconductor Inc.

Chien-Wei Hsin

Chung-Yao Chang

Wei-Hsuan Chang

Shen-Chung Lee

Tsung-Hsuan Lee

A wireless communication method applied to a beamformer includes: receiving a plurality of reference information corresponding to a plurality of stations, respectively; calculating an evaluation value for each of the stations according to at least one reference information of the plurality of reference information; and comparing a plurality of evaluation values respectively corresponding to the plurality of stations, to select specific stations from the plurality of stations for performing beamforming.

Beamformer and wireless communication method thereof for improving communication quality

An antenna diversity and beamforming coexistence method applied to a wireless communication device which supports both a transmitter/receiver (TX/RX) antenna diversity mechanism and a beamformer/beamformee mechanism includes the following steps: determining whether a plurality of wireless link partners linked to the wireless communication device respectively support the beamformer/beamformee mechanism and generating a determination result accordingly; and determining whether to enable/disable the TX/RX antenna diversity mechanism of the wireless communication device and to enable/disable the beamformer/beamformee mechanism of the wireless communication device according to the determination result; wherein when the beamformee mechanism is determined to be disabled, controlling the wireless communication device to transmit a default value in response to a received beamforming protocol packet.

Antenna diversity and beamforming coexistence method and machine readable media

The present invention discloses a wireless transmission rate adjustment method for adjusting the wireless transmission rate of a wireless transmission device. The method comprises: having the wireless transmission device enter a try state from a normal state; under the try state, transmitting a plurality of test packets according to a first modulation and coding scheme (MCS) and determining whether the transmission is successful in accordance with a predetermined condition; if the transmission is successful with the first MCS, returning to the normal state and transmitting data with the first MCS; if the transmission is unsuccessful with the first MCS, staying in the try state and transmitting a plurality of test packets according to a second MCS, and then determining whether the transmission is successful in accordance with the predetermined condition; if the transmission is successful with the second MCS, returning to the normal state and transmitting data with the second MCS; and if the transmission is failed with the second MCS, returning to the normal state and transmitting data at an original transmission rate or with the first MCS.

Wireless transmission rate adjustment method

A wireless communication receiver includes a circuit, an analog-to-digital converter (ADC) and a processing circuit. The circuit receives a wireless signal and outputs an analog signal according to a gain index. The ADC converts the analog signal to a digital signal. The processing circuit adjusts the gain index according to a clipping number of the ADC.

Wireless communication receiver and method thereof

A wireless LAN communication device includes an amplifying circuit, an interference detection circuit, a false alarm counting circuit, and a control circuit. The amplifying circuit is configured to operably provide a gain to wireless signals. The interference detection circuit is configured to operably detect adjacent channel interference signals to generate a detection result. The false alarm counting circuit is configured to operably calculate a number of false alarms incurred by the adjacent channel interference signals. The control circuit is configured to operably configure the gain of the amplifying circuit according to the detection result and the number of false alarms.

Wireless LAN communication device, relevant signal processing circuit, and method thereof

A wireless apparatus and an interference determination method thereof are provided. The wireless apparatus determines that the wireless apparatus operates in a first bandwidth mode, and counts a first clear channel assessment (CCA) number associated with a primary channel, a second CCA number associated with a secondary channel, an entire CCA number associated with either the primary channel or the secondary channel, and the false alarm number according to at least one received radio frequency (RF) signal. Afterwards, the wireless apparatus determines that the second CCA number exceeds the summation of the first CCA number and bias number to determine that it is in an interference state, and determines that the interference state belongs to either the first interference type or second interference type according to the radio of the entire CCA number to the FA number.

Growing community of inventors

Kaohsiung, Taiwan

Chien-Wei Hsin