Abstract: A calibration apparatus for calibrating a transceiver includes a loop back circuit, an estimation circuit, and a calibration circuit. The loop back circuit is coupled between a mixer output port of a transmitter (Tx) of the transceiver and a mixer input port of a receiver (Rx) of the transceiver, and applies a sequence of different loop gains. The estimation circuit receives a loop back receiving signal that is output from the Rx under the sequence of different loop gains, and generates at least one estimated value of impairment of the transceiver by performing channel estimation according to at least the loop back receiving signal. The calibration circuit performs calibration upon the transceiver according to the at least one estimated value.

Abstract: Techniques pertaining to methods to reduce channel accessing delay for Bluetooth system using listen before talk (LBT) in wireless communications are described. An apparatus performs LBT on a channel and, based on a result of the LBT, the apparatus transmits on the channel responsive to the channel being deemed unoccupied. In performing the LBT, the apparatus performs the LBT with at least one of: (a) dynamic transmit (Tx) power control (TPC) with an adaptive energy detection (ED) threshold; (b) an extended clear channel assessment (CCA) time; and (c) the extended CCA time with a multi-block format of transmission.

Abstract: A channel allocation method for a communication device to perform in a wireless personal area network (WPAN) following IEEE 802.15 or SIG protocol, and the communication device is able to operate across a plurality of frequency bands. The channel allocation method includes the following steps. A working frequency band within the plurality of frequency bands is determined, the working frequency band includes at least one clean channel and other channels. One of the at least one clean channel is selected to operate in the WPAN, by the communication device. The at least one clean channel is not used by another communication device in a wireless local area network (WLAN) following IEEE 802.11 protocol.

Abstract: A multi-link operation (MLO) band arrangement method for Bluetooth and Wi-Fi coexistence includes linking a Wi-Fi access point (AP) to a Wi-Fi station which is integrated with a Bluetooth system, the Wi-Fi station informing the Wi-Fi access point about at least one adaptive frequency hopping band in Bluetooth connection of the Wi-Fi station, and the Wi-Fi access point communicating with the Wi-Fi station using at least one frequency band selected according to the at least one adaptive frequency hopping band.

Abstract: A Bluetooth (BT) communication method includes: setting a BT frequency hopping configuration in a frequency band that is higher than a 2.4 GHz band; and performing a BT communication operation that is compliant with the BT frequency hopping configuration in the frequency band. In addition, the BT communication method is employed by a BT communication device having a control circuit and a wireless communication circuit.

Abstract: A wireless communication includes a control circuit and a receiver (RX) circuit. The control circuit obtains indicator information from another wireless communication system, identifies a transmitter (TX) and receiver (RX) packet delivery scenario as one of a packet overlapping scenario and a packet non-overlapping scenario according to the indicator information, and generates RX gain control information in response to the TX and RX packet delivery scenario. The RX circuit refers to the RX gain control information to set an RX gain used for receiving data.

Abstract: Techniques pertaining to dynamic band selection in multi-link operation (MLO) with time averaged specific absorption rate (TA-SAR) information in wireless communications are described. An apparatus determines a resource allocation regarding one or more multi-link operation (MLO) bands. The apparatus then allocates at least one of a transmit (TX) power, a TX duty cycle and a modulation and coding scheme (MCS) rate in wirelessly transmitting in the one or more MLO bands to result in a TA-SAR that is no greater than a predefined limit.

Abstract: The present invention provides a control method of an electronic device is disclosed, wherein the electronic device includes a first antenna and a second antenna. The control method includes the steps of: setting one of the first antenna and the second antenna as a default antenna; receiving a plurality of packets within an interval; for each of the plurality of packets, comparing a signal strength corresponding to the first antenna and a signal strength of the second antenna to generate a first comparison result; updating a first value or a second value according to the first comparison result; wcomparing the first value and the second value to generate a second comparison result when running out the interval; and selecting one of the first antenna and the second antenna to be the default antenna according to the second comparison result.

Abstract: A device is provided, which includes radio-frequency circuitry and an encoder. The encoder is configured to modulate input data to generate a long-range packet, and to transmit the long-range packet to a receiver through the radio-frequency circuitry. The long-range packet includes a long-range signal field (LR-SIG) and a long-range data field (LR-DATA). Each modulated bit in the long-range signal field and the long-range data field is spread into a plurality of spread modulated bits that are distributed into a plurality of symbols in a frequency domain.

Abstract: An apparatus is provided, which includes a first device, a second device, and a control circuit. The first device is configured to establish a wireless link with a wireless communication device in a first communication channel. The second device is configured to perform a first scan on a second communication channel to detect whether there are any radar signals on the second communication channel for a predetermined period of time. In response to the first scan satisfying a predetermined condition, the control circuit controls the first device to move the wireless link from the first communication channel to the second communication channel.

Abstract: A wireless communication method includes: obtaining operational information of a first wireless communication system; in response to the operational information of the first wireless communication system, adjusting a wireless communication configuration of a second wireless communication system to set an adjusted wireless communication configuration for the second wireless communication system; and performing, by the second wireless communication system, wireless communication under the adjusted wireless communication configuration. The first wireless communication system and the second wireless communication system co-exist in a same electronic device.

Abstract: The present invention provides a wireless communication circuitry including a processor, a communication path and a channel detection path. The communication path is configured to wirelessly communicate with an electronic device by using a first channel. The channel detection path is configured to detect at least one channel different from the first channel to generate a detection result while the communication path is wirelessly communicating with the electronic device by using the first channel. The processor determines a second channel based on the detection result, and the processor controls the communication path to switch to the second channel from the first channel to communicate with the electronic device.

Abstract: A wireless communication method includes: obtaining operational information of a first wireless communication system; in response to the operational information of the first wireless communication system, adjusting a wireless communication configuration of a second wireless communication system to set an adjusted wireless communication configuration for the second wireless communication system; and performing, by the second wireless communication system, wireless communication under the adjusted wireless communication configuration. The first wireless communication system and the second wireless communication system co-exist in a same electronic device.

Abstract: The present invention provides a wireless communication circuitry including a processor, a communication path and a channel detection path. The communication path is configured to wirelessly communicate with an electronic device by using a first channel. The channel detection path is configured to detect at least one channel different from the first channel to generate a detection result while the communication path is wirelessly communicating with the electronic device by using the first channel. The processor determines a second channel based on the detection result, and the processor controls the communication path to switch to the second channel from the first channel to communicate with the electronic device.

Abstract: A wireless communication includes a control circuit and a receiver (RX) circuit. The control circuit obtains indicator information from another wireless communication system, identifies a transmitter (TX) and receiver (RX) packet delivery scenario as one of a packet overlapping scenario and a packet non-overlapping scenario according to the indicator information, and generates RX gain control information in response to the TX and RX packet delivery scenario. The RX circuit refers to the RX gain control information to set an RX gain used for receiving data.

Abstract: A communication apparatus is provided. An RF module receives an RF signal. An analog down converter down converts the RF signal in response to a band select signal to generate a first converted signal in a specific frequency band. An analog-to-digital converter converts the first converted signal into a digital signal. A digital down converter down converts the digital signal in response to a channel select signal to generate a second converted signal. The channel select signal controls the digital down converter to sweep a plurality of scan trains during a scan frame. Each of the scan trains includes a plurality of channels. The total channel number of the plurality of scan trains is N. A detector determines whether the RF signal includes an ID packet according to the second converted signal corresponding to the channels of the plurality of scan trains.

Abstract: A communication apparatus is provided. The communication apparatus includes an RF module for receiving an RF signal, and a down converter, coupled to the RF module, for down converting the RF signal in response to a channel select signal to generate a converted signal. The channel select signal controls the down converter to sweep a plurality of scan trains during a scan frame, and each of the scan trains comprises a plurality of channels, wherein a total channel number of the plurality of scan trains is N, where 32?N?78. The communication apparatus also includes a detector, coupled to the down converter, for determining whether the RF signal comprises an ID packet according to the converted signal corresponding to the channels of the plurality of scan trains.

Abstract: A communications apparatus is provided. A signal processing device receives an RF signal comprising a wanted signal complying with a first wireless communications protocol from an air interface and processes the RF signal according to one or more signal processing parameter(s) to obtain the wanted signal. An interference detector analyzes one or more characteristic(s) of an interference signal of the wanted signal. The interference signal complies with a second wireless communications protocol different from the first wireless communication protocol. A coexistence optimization controller is coupled to the signal processing device and the interference detector, obtains information regarding the characteristic(s) of the interference signal from the interference detector and dynamically adjusts the signal processing parameter(s) according to the characteristic(s) of the interference signal.

Abstract: A communication apparatus is provided. The communication apparatus includes an RF module for receiving an RF signal, and a down converter, coupled to the RF module, for down converting the RF signal in response to a channel select signal to generate a converted signal. The channel select signal controls the down converter to sweep a plurality of scan trains during a scan frame, and each of the scan trains comprises a plurality of channels, wherein a total channel number of the plurality of scan trains is N, where 32?N?78. The communication apparatus also includes a detector, coupled to the down converter, for determining whether the RF signal comprises an ID packet according to the converted signal corresponding to the channels of the plurality of scan trains.

Abstract: A communication apparatus is provided. The communication apparatus includes an RF module, a down converter coupled to the RF module and a detector coupled to the down converter. The RF module receives an RF signal. The down converter down converts the RF signal in response to a channel select signal to generate a converted signal, wherein the channel select signal controls the down converter to alternately sweep a plurality of scan trains during a scan frame, and each of the scan trains comprises a plurality of channels. The power detector determines whether the RF signal comprises an ID packet according to the converted signal corresponding to the channels of the plurality of scan trains.