A communication system includes a transmitter configured to transmit a modulated signal, a transmission line configured to carry the modulated signal, and a receiver coupled to the transmitter by the transmission line, and configured to receive the modulated signal. The transmitter includes a modulator configured to generate the modulated signal responsive to a data signal and a carrier signal. The receiver includes a demodulator configured to demodulate the modulated signal responsive to a first carrier signal. The demodulator includes a filter and a gain adjusting circuit configured to adjust a gain of the filter, and to generate the set of control signals based on a voltage of the filtered first signal and a voltage of the first signal. The gain adjusting circuit includes a first peak detector coupled to the filter, and configured to detect a peak value of the voltage of the filtered first signal.

Various embodiments relate to a method for transmitting a Wi-Fi signal using a channel of 80 MHz or wider, wherein each 80 MHz segment has a tone plan, including: determining that a physical 20 MHz sub-channel overlaps the 80 MHz segment or OFDMA transmission is used for the 80 MHz segment; selecting an alternative 80 MHz tone plan; and transmitting data on the 80 MHz segment using the selected alternative 80 MHz tone plan.

A multiband digital data network infrastructure comprises a network of access points (APs). Each AP includes a differential segmented aperture (DSA) comprising a two-dimensional array of electrically conductive tapered projections disposed on a support board, modular analog front ends (MAFE's) configuring the DSA for different respective wireless services, an in phase/quadrature (IQ) board, and one or more network cards. The network of APs support two or more different wireless communication protocols operating in different RF bands. In some embodiments, each AP of the network supports both a cellular service and a WiFi service using the same DSA. In some embodiments, the network of APs form a network of cell towers of a cellular service. In some embodiments, the network of APs form a network of APs of an indoor wireless network.

Systems and methods for integrating injection-locked oscillators into transceiver arrays are disclosed. In one aspect, there is provided an injection-locked oscillator (ILO) distribution system including a master clock generator configured to generate a master clock signal. The ILO distribution system also includes an ILO distribution circuit including an ILO and configured to receive the master clock signal. The ILO is configured to generate a reference clock signal based on the master clock signal. The ILO distribution circuit is further configured to generate an output signal indicative of an operating frequency of the ILO. The ILO distribution system further includes an injection-locked detector (ILD) configured to receive the master clock signal and the output signal. The ILD is further configured to determine whether the ILO is in a locked state or in an unlocked state based on the master clock signal and the output signal.

An electronic device may include wireless circuitry with a baseband processor, a transceiver, and an antenna. The transceiver may include a mixer that outputs signals to a transimpedance amplifier. The mixer has an output impedance that varies depending on the frequency of operation. An adjustable resistance can be coupled to the input of the transimpedance amplifier. A control circuit can tune the adjustable resistance to compensate for changes in the output impedance of the mixer as the transceiver operates across a wide range of frequencies.

The method executed in a wireless local area network (WLAN) system, according to various embodiments, may comprise: a step in which a reception station (STA), which supports a multilink comprising a first link and a second link, receives a target wake time (TWT) element via the first link, wherein the TWT element is received via a beacon and includes information for TWT period configuration for the second link; a step in which the reception STA configures a TWT period for the second link on the basis of the TWT element; and a step in which the reception STA communicates with a transmission STA via the second link within the TWT period.

Certain aspects of the present disclosure generally relate to techniques and apparatus for operating a wireless receiver of the apparatus in a high linearity mode. An example method includes operating the apparatus in a first mode with transmission of a plurality of transmit signals. The method also includes attenuating a received signal via an attenuator while operating the apparatus in the first mode. The method further includes amplifying the attenuated signal with an amplifier while operating the apparatus in the first mode. For certain aspects, the method further involves operating the apparatus in a second mode, bypassing the attenuator while operating the apparatus in the second mode, and amplifying the received signal with the amplifier while operating the apparatus in the second mode.

A hybrid telemetry system includes a plurality of telemetry networks configured to communicate a modulated signal representing digital data along adjoining sections of a pipe string. The plurality of telemetry networks may each be optimized or particularly suitable for the configuration of the pipe string, the well, and/or the environment of the well occurring in each of the adjoining sections. Some of the plurality of telemetry networks may overlap to provide redundancy of the communication of the digital data.

The method executed in a wireless local area network (WLAN) system, according to various embodiments, may comprise: a step in which a reception station (STA), which supports a multilink comprising a first link and a second link, receives a target wake time (TWT) element via the first link, wherein the TWT element is received via a beacon and includes information for TWT period configuration for the second link; a step in which the reception STA configures a TWT period for the second link on the basis of the TWT element; and a step in which the reception STA communicates with a transmission STA via the second link within the TWT period.

An electronic device according to various embodiments of the present invention can comprise: a foldable housing, which comprises a hinge structure, a first housing structure connected to the hinge structure and including a first surface facing a first direction, a second surface facing a second direction that is opposite to the first direction, and a first side member that encompasses at least a portion of the space between the first and second surfaces and includes at least one first conductive part, and a second housing structure connected to the hinge structure, including a third surface facing a third direction, a fourth surface facing a fourth direction that is opposite to the third direction, and a second side member that encompasses at least a portion of the space between the third and fourth surfaces and includes at least one second conductive part, and which comes into contact with the first housing structure with the hinge structure as the center thereof, wherein the first surface faces the third surface in a folded state and the third direction is the same as the first direction in an unfolded state; a flexible display extending from the first surface to the third surface; a first communication processor arranged inside the first housing structure; a first wireless communication circuit arranged inside the first housing structure, electrically connected to the first conductive part and the first communication processor, and configured to transmit and/or receive a first signal having a first frequency; and a second wireless communication circuit arranged inside the second housing structure, electrically connected to the second conductive part and the first communication processor, and configured to transmit and/or receive a second signal having a second frequency. Other various embodiments are possible.