Abstract: Receiving Wireless Local Area Network (WLAN) packets from co-located access point radios and client device radios may be provided. First, a plurality of switchable gain devices corresponding to an auxiliary radio may be placed into a toggling state in response to the auxiliary radio being placed in a sniffer mode. Next, it may be determined that a primary radio is transmitting within a frequency range of a frequency band. Then, in response to determining that the primary radio is transmitting within the frequency range of the frequency band, a one of the plurality of switchable gain devices corresponding to the frequency band may be placed into a low gain state when the auxiliary radio is sniffing the frequency range of the frequency band.

Abstract: There is provided mechanisms for automatic gain control in a wireless communication network for power grid control. The wireless communication network employs time based scheduling of packets. A method is performed by a packet receiver in the wireless communication network. The method comprises receiving a packet from a packet transmitter. The packet comprises a preamble. The preamble is composed of a single OFDM symbol. The preamble is represented by a sequence of samples. The method comprises applying automatic gain control to the sequence of samples after variable gain amplitude control has been applied to the sequence of samples. The automatic gain control involves applying an LPF to the sequence of automatic gain controlled samples. The LPF is selected from a bank of LPSs. Which LPF to apply depends on, according to the time based scheduling, from which packet transmitter the packet is received.

Abstract: A quadrature detector subjects a received signal to quadrature detection and outputs a base band signal. A direct current component measurement circuit measures a magnitude of a direct current component included in the base band signal from the quadrature detector. A first HPF and a second HPF reduce the direct current component included in the base band signal from the quadrature detector. A demodulator demodulates the base band signal output from the first HPF and the second HPF. A controller exercises control to attenuate a level of the received signal input to the quadrature detector when the magnitude of the direct current component measured by the direct current component measurement circuit is equal to or larger than a threshold value.

Abstract: A detector circuit includes: a squaring circuit configured to receive an output of a power amplifier of a radio transmitter and to produce an output current, the output of the power amplifier including: a desired tone; a local oscillator leakage tone; and an image tone, and the output current of the squaring circuit including: a direct current (DC) component including a function of the desired tone and an alternating current (AC) component; and a DC current absorber electrically connected to an output terminal of the squaring circuit, the DC current absorber being configured to filter out the DC component of the output current of the squaring circuit to produce a filtered output of the squaring circuit, the filtered output including the AC component including functions of the local oscillator leakage tone and the image tone.

Abstract: The present invention relates to a method and a device 10 for processing mixed audio data, including decomposing in real-time with low latency, in which a continuous stream of mixed audio data is received from an audio source 14, a first chunk of the stream of mixed audio data is loaded into a buffer, the audio data contained in the buffer is decomposed to obtain first decomposed audio data representing audio signals of a predetermined timbre, and a first chunk of output data is obtained from the first decomposed audio data, preferably for direct playback via speaker 26.

Abstract: An apparatus includes an interface and a plurality of impedance branches. The interface may be configured to receive a data signal and a plurality of selection signals. The plurality of impedance branches may comprise a group of branches and a separated branch. The plurality of impedance branches may be configured to adjust an impedance value and a gain of a data path for the data signal in response to the selection signals. The group of branches may be controlled in response to the selection signals to select the impedance value and a first gain value in a first mode. The separated branch may replace one of the plurality of impedance branches in the group of branches in response to the selection signals to select a second gain value in a second mode.

Abstract: An apparatus for measuring radio frequency power is described that comprises at least one measurement path for small bandwidth and at least one measurement path for wide bandwidth. Further, the apparatus has an analysis and measurement unit connected with the at least two measurement paths. The analysis and measurement unit is configured to process the at least one small bandwidth signal and the at least one wide bandwidth signal. Further, a method of analyzing a radio frequency signal is described.

Abstract: A radar unit (400) for detecting an existence of interference is described that includes: a millimetre wave (mmW) transceiver (Tx/Rx) circuit configured support a normal data acquisition mode of operation that comprises transmitting a radar signal waveform and receiving an echo signal thereof; a mixed analog and baseband circuit operably coupled to the mmW Tx/Rx circuit; and a signal processor circuit (452) operably coupled to the mixed analog and baseband circuit. An interference detection unit (448) is operably coupled to the mmW Tx/Rx circuit. The radar unit is configured to operate a time-discontinuous mode of operation that includes a first time portion used as an interference monitoring period and a second time portion used by the radar unit in the normal data acquisition mode of operation, whereby the mixed analog and baseband circuit, signal processor circuit (452) and interference detection unit (448) are configured to detect interference signals during the monitoring period.

Abstract: Systems and methods for automatic level control (ALC) are provided.

Abstract: A circuit includes an AGC adaptation circuit configured to receive a first signal generated based on an AGC output signal from an AGC circuit. The AGC circuit applies an AGC gain to an AGC input signal to generate the AGC output signal. The AGC adaptation circuit determines an observed value of the first signal, and determines a AGC adaptation step size based on the observed value and a predetermined target value associated with the first signal. The AGC adaptation circuit provides a second signal to adjust the AGC gain of the AGC circuit using the AGC adaptation step size.

Abstract: In an example, a method for correcting time-of-flight measurements includes receiving a plurality of time-of-flight measurements and determining whether the time-of-flight measurements relate to a strong signal client, a weak signal client, or a preferred signal client. If the time-of-flight measurements relate to a strong signal client or a weak signal client, the method determines whether the time-of-flight measurements constitute two distinct distributions. If the time-of-flight measurements constitute two distinct distributions, a mean value for each distribution is determined. If the mean values differ by a predetermined time delay attributable to automatic gain control processing, the time-of-flight measurements corresponding to the distribution having the lower mean value are used. If the mean values differ by less than the predetermined time delay attributable to automatic gain control processing, the time-of-flight measurements corresponding to both distributions are used.

Abstract: Efficient codeword synchronization methods and systems for fiber channel protocol are disclosed. The method includes identifying a codeword boundary by detecting 100-bit known patterns in a bit codeword in a transmission.

Abstract: A wireless communication device includes an antenna to receive a signal, a low noise amplifier, and circuitry that determines the power level of the signal. The circuitry also determines whether the signal includes a packet, and causes the low noise amplifier to amplify the signal when the signal includes a packet and the power level of the signal is below a threshold. The circuitry also causes the low noise amplifier to be bypassed when the signal does not include a packet, or the power level of the signal is above the predetermined threshold and the signal includes a packet.

Abstract: A device includes a selection circuit that is configured to generate a bias level. The device also includes a combinational circuit coupled to the selection circuit. The combinational circuit is configured to generate a distortion correction factor used offset inter-symbol interference from a data stream on a distorted bit based on the bias level to generate a correction signal. The device additionally includes a latching element coupled to the combinational circuit and configured to receive the first correction signal.

Abstract: A base station includes a processor. The processor is configured to transmit, to each of terminal devices, a data signal and a reference signal used for demodulating the data signal while the data signal and the reference signal are spatially multiplexed, by forming a plurality of beams while using a plurality of antenna elements. The processor is configured to calculate an index value related to correlation among the terminal devices, on a basis of propagation path information between any of the terminal devices subject to the spatial multiplexing. The processor is configured to assign the reference signals to the terminal devices subject to the spatial multiplexing in accordance with the index values among the terminal devices.

Abstract: Wireless receivers and related methods with interferer immunity are disclosed. The receiver includes a receive (RX) front-end, a power level detector, and an automatic gain controller (AGC). The RX front-end includes circuit(s) having variable gains, and the power level detector outputs a power level indicator. The AGC receives the power level indicator and outputs the gain settings to the variable-gain circuits within the RX front-end. Further, the AGC is configured to adjust the gain settings within a first gain range when not receiving data frames and to adjust them within a second gain range when receiving data frames. The second gain range is a restricted version of the first gain range. Further, the AGC can be configured to detect and store gain settings within a sliding time window when data frames are not being received and to use these stored gain settings to determine the second gain range.

Abstract: [Object] To provide a mechanism capable of efficiently operating vast millimeter-wave band resources. [Solution] Provided is an apparatus that operates a small cell, the apparatus including: a processing unit configured to improve a downlink quality of a unit frequency band used in the small cell by limiting resources used for downlink transmission.

Abstract: Provided are a wireless communication apparatus and a channel estimation methods of the wireless communication apparatus. The channel estimation methods includes receiving a first sub-frame and a second sub-frame, the first sub-frame including a plurality of first reference signals pre-coded based on a first pre-coding matrix and the second sub-frame including a plurality of second reference signals pre-coded based on a second pre-coding matrix; determining whether the first pre-coding matrix and the second pre-coding matrix are the same, based on a channel variation in the time domain; and performing, in response to determining that the first pre-coding matrix and the second pre-coding matrix are the same, channel estimation with respect to a resource element included in the second sub-frame based on at least of the plurality of first reference signals and at least one of the plurality of second reference signals.

Abstract: An apparatus includes an interface and a plurality of impedance branches. The interface may be configured to receive a data signal and a plurality of selection signals. The plurality of impedance branches may comprise a group of branches and a separated branch. The plurality of impedance branches may be configured to adjust an impedance value and a gain of a data path for the data signal in response to the selection signals. The group of branches may be controlled in response to the selection signals to select the impedance value and a first gain value in a first mode. The separated branch may replace one of the plurality of impedance branches in the group of branches in response to the selection signals to select a second gain value in a second mode.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A base station operation method in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: determining, on the basis of channel information received from each of a plurality of terminals, power to be used by each of the plurality of terminals with respect to resources allocated to be overlaid and used by the plurality of terminals; and transmitting resource information, which comprises information about the determined power, to each of the plurality of terminals.

Abstract: A receiver of signals likely to be disturbed by an interfering signal, the receiver includes an interference rejection filter comprising a multiplying gain applied respectively to an in-phase channel and an in-quadrature channel of a signal received by the receiver, the value of the multiplying gain being determined by a nonlinear function Ki(?) of the modulus ? of the received signal, the function Ki(?) being determined so as to maximize the signal-to-noise ratio after application of the multiplying gain and demodulation of the received signal.

Abstract: Disclosed herein is a method for automatic gain control based on signal spectrum sensing. Spectral sensing techniques may be employed to detect the presence or absence of interference and also determine a frequency location of the interference and power level estimates of a desired signal. The method includes running an algorithm to measure the energy periodically to track the changes as blockers that were not prominent while experiencing deep fade and those that will affect performance when it is out of the deep fade. The method enables predicting a level of degradation for various front-end settings and enables selection of an optimum setting. In an embodiment, the spectral sensing may be performed either in analog domain using narrowband tunable filters. In an embodiment, the spectral sensing may be performed digitally using Fast fourier transform (FFT), Goertzel algorithm, or power detection techniques.

Abstract: A receiver frontend having a high-frequency AC-coupled path in parallel to a low-frequency feed-forward path for baseline correction. The low-frequency path blocks the DC common-mode voltage of the input differential signal pair, but passes low-frequency differential signal components (e.g., long strings of a single value, or disparities in the number of 1's and 0's over a long period of time.) The low-frequency path can include a passive network for level shifting and extending the range of acceptable common-mode input voltages. The low-frequency path can also include a differential (e.g., transconductance) amplifier to isolate the common-mode input voltage from the output of the baseline wander correction circuit.

Abstract: A gain level control circuit in a wireless distribution system (WDS) is provided. The digital level control circuit receives a number of first digital communications signals having a number of first digital amplitudes and generates a number of second digital communications signals having a number of second digital amplitudes. When a selected second digital amplitude approaches a full-scale digital amplitude represented by a predefined number of binary bits, the gain level control circuit determines a selected first digital communications signal having a selected first digital amplitude causing the selected second digital amplitude to exceed the full-scale digital amplitude and adjusts the selected first digital amplitude to reduce the selected second digital amplitude to lower than or equal to the full-scale digital amplitude.

Abstract: Disclosed is an electronic device that includes first and second radio modules using the same radio frequency band. The electronic device includes a first and second programmable radio attenuator and is arranged for: (1) determining a value of attenuation associated with each radio module according to a maximum power acceptable to the radio module, a transmission power of the other radio module and isolation between the first and second radio interfaces, (2) determining, for each radio module, a value of a quality indicator of a communication established with said radio module, and, when, for a radio module, the value of the quality indicator is higher than a predetermined threshold value that's dependent on the value of the attenuation associated with the radio module and a minimum power acceptable to the radio module, and (3) programming the radio attenuator corresponding to the value of the attenuation associated with the radio module.

Abstract: Systems and methods directed towards reducing noise introduced into a signal when processing the signal are discussed herein. In embodiments a signal may initially be split by a multiplexer into two or more frequency bands. Each of the frequency bands can then be forwarded through an assigned channel. One or more channels may include an amplifier to independently boost the signal band assigned to that channel prior to a noise source within the assigned channel. This results in boosting the signal band relative to noise introduced by the noise source. In some embodiments, a filter may also be implemented in one or more of the channels to remove noise from the channel that is outside the bandwidth of the signal band assigned to that channel. Additional embodiments may be described and/or claimed herein.

Abstract: A communication device includes a sampler configured to sample an input signal, wherein the sampler is configured to generate a sampled value for each sampling time of a sequence of sampling times, a sequence value generator configured to generate an output value for each sampling time of the sequence of sampling times based on the sampled values, wherein the sequence value generator is configured to set the output value for a sampling time based on the sampled value for the sampling time and based on a limitation of the difference between the output value for the sampling time and the output value for the preceding sampling time in the sequence of sampling times, and an edge detector configured to detect an edge in the input signal based on the output values.

Abstract: The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. The method by which a transmission terminal transmits a reference signal for interference measurement in a wireless communication system supporting FDR, according to one embodiment of the present invention, comprises the steps of: a transmission terminal configuring a measurement subframe for measuring inter-device interference; mapping a preamble to the measurement subframe; and transmitting, to a reception terminal, a reference signal through the measurement subframe to which the preamble has been mapped.

Abstract: The technology described herein enhances the operation of a wireless Radio Frequency (RF) system to dynamically modify Automatic Gain Control (AGC) based on RF characteristics of a received data signal. In one implementation, a method of operating a wireless RF system includes receiving a data signal and applying AGC based on AGC thresholds. The method further includes determining an RF characteristic of the data signal, determining signal inflections and signal magnitudes of the RF characteristic during a time window, and comparing the signal inflections and signal magnitudes to an AGC signal inflection threshold and AGC signal magnitude threshold, respectively. The method further provides widening the AGC thresholds if the signal inflections and signal magnitudes exceed the AGC inflection and magnitude thresholds, respectively.

Abstract: A semiconductor device includes one or more internal circuits; a nonvolatile memory circuit including a first region suitable for storing first data for the nonvolatile memory circuit and a second region suitable for storing second data for the internal circuits; a first register suitable for temporarily storing the first data; one or more second registers suitable for temporarily storing the second data; and a control circuit suitable for controlling the nonvolatile memory circuit to transmit the first data and the second data to the first register and to the second registers, respectively, when a boot-up operation is performed.

Abstract: A receiver for digital signals includes a radiofrequency stage. A feedback loop controls a variable attenuation resistance applied to a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of an amplitude of the modulated radiofrequency signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The value of the variable resistance is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation.

Abstract: Methods and systems for digitization of broadband analog signals may comprise in a radio frequency (RF) transceiver comprising a diplexer, first and second automatic gain and slope control (ASCS) modules, and a combiner): receiving an input RF signal comprising at least two signals, splitting the input RF signal in the frequency domain into first and second signals of different frequency utilizing the diplexer, configuring a frequency-dependent gain level for each of the first and second signals utilizing the first and second ASCS modules, and combining output signals from the first and second ASCS modules utilizing the combiner. The frequency dependent gain levels of the first and second signals may be configured to enable an ADC receiving the combined signal to operate with an effective number of bits (ENOB) of approximately 10.

Abstract: The present invention provides a wireless video signal transmitter, a receiver, a transmission system and a display system, which relates to the technical field of WiGig wireless transmission. According to an embodiment of the present invention, the wireless video signal transmitter comprises a frequency multiplication unit and a wireless transmitting unit. The frequency multiplication unit is operable to implement the frequency multiplication of a video signal, so as to obtain a first signal and transmit the first signal to the wireless transmitting unit. The wireless transmitting unit is operable to process the first signal to obtain a second signal suitable for wireless transmission, and to transmit the signal wirelessly. The display system of the present invention may receive and process the ultra high-definition video signal processed and transmitted by the wireless video signal transmission system.

Abstract: Systems, devices, and techniques for performing peak detection are described. A described receiver includes a first amplifier to amplify an input signal to generate a first amplified signal; a mixer to downconvert the first amplified signal to generate a downconverted signal; a second amplifier to amplify the downconverted signal to generate a second amplified signal; a filter, being selectably engageable by the receiver, a peak detector configured to perform voltage measurements of the second amplified signal; and switch circuitry. The switch circuitry is configured to selectably disengage the filter during a first measurement phase during which a first voltage measurement performed by the peak detector is indicative of an output voltage swing of the first amplifier, and to selectably engage the filter during a second measurement phase during which a second voltage measurement performed by the peak detector is indicative of an output voltage swing of the second amplifier.

Abstract: An RF tuner is described for handling RF signals in a broad frequency range and a broad power range while maintaining high linearity and tolerating high power blockers. A continuous feedback loop comprising a substantially linear LNA and an RF RSSI can adjust the power of the RF signal on the RF side. A substantially linear, variable gain transconductor may convert and amplify the voltage of the RF signal to a current signal. The converted signal may be down converted and filtered to an IF or baseband signal. An IF or baseband RSSI may measure the power of the down converted and filtered signal. The measured power may be compared against a preferred value to adjust the amplification of the transconductor.

Abstract: A gain level control circuit in a wireless distribution system (WDS) is provided. The digital level control circuit receives a number of first digital communications signals having a number of first digital amplitudes and generates a number of second digital communications signals having a number of second digital amplitudes. When a selected second digital amplitude approaches a full-scale digital amplitude represented by a predefined number of binary bits, the gain level control circuit determines a selected first digital communications signal having a selected first digital amplitude causing the selected second digital amplitude to exceed the full-scale digital amplitude and adjusts the selected first digital amplitude to reduce the selected second digital amplitude to lower than or equal to the full-scale digital amplitude.

Abstract: A method is disclosed for performing LDPC soft decoding of data stored in a flash storage device. Upon occurrence of a hard read failure, one or more retries with soft decoding after each retry are performed until soft decoding is successful or a maximum iteration count is reached. For each retry thresholds for sensing a level of a cell are adjusted according to a specific sequence. Likewise, the LLR table for each retry is selected from pre-determined LLR tables each corresponding to a retry attempt and the thresholds used for the retry attempt. The LLR table is not adjusted between retries or based on outcomes of any retries. A step size by which thresholds adjusted may be tuned to improve performance.

Abstract: A packet-based radio receiver (10) comprises an automatic gain control system (17) and a signal-level detector (18, 19, 20) for monitoring an analog signal derived from radio signals received by the radio receiver. The signal-level detector (18, 19, 20) comprises a binary memory cell (22, 24) and a monitoring system. The monitoring system comprises a comparator (21, 23) arranged to receive a reference voltage at a first input and the analog signal at a second input. The monitoring system is arranged to (i) continuously monitor the voltage of the analog signal, (ii) detect when the monitored signal exceeds the reference voltage, and (iii) store a predetermined binary value in the memory cell (22, 24) in response to such a detection. The automatic gain control system (17) is arranged to control the gain of a variable-gain component (12, 13, 14) of the radio receiver in dependence on the contents of the binary memory cell (22, 24).

Abstract: An apparatus is provided which comprises: a first clock line to provide a first clock; a second clock line to provide a second clock; a delay line having a plurality of delay cells, wherein the delay line is coupled to the first and second clock lines, wherein the first clock is to sample the second clock; and circuitry coupled to the delay line, wherein the circuitry is to determine first or latest edge transitions from the outputs of the plurality of delay cells.

Abstract: The present disclosure relates to systems, methods, and non-transitory computer-readable media for offloading data packets from a first radio access network to a second radio access network. The method comprises monitoring first values of first performance parameters of the first radio access network at different instants of time prior to a predetermined transmission time interval. Then the second values of the one or more first performance parameters are predicted based on the first values. Further, the second values are compared against corresponding predetermined threshold values of the one or more first performance parameters and based on the comparison offloading of the data packets are triggered.

Abstract: Embodiments herein relate to a method performed by a first network node for enabling at least one second network node to perform a transmission in a wireless communications network. The first network node and the at least one second network node performs transmissions using contention-based transmission resources of the same frequency. The first network node determines an indication of a maximum transmit power for the transmission by the at least one second network node to be used by the at least one second network node when the contention-based transmission resources of the same frequency is available for transmissions by the first network node in the wireless communications network. Then, the network node transmits the determined indication of a maximum transmit power to the at least one second network node. Embodiments of the first network node are also described.

Abstract: An AGC circuit for a radio receiver includes a detector converting a high frequency signal into a baseband signal. To reduce generation of a DC offset, the AGC circuit includes: a variable gain amplifier having an amplifier circuit and a high-pass filter, the amplifier circuit amplifying the baseband signal with a variable gain and the high-pass filter coupled to the amplifier circuit and having a cut-off frequency which is variable; a controller supplying a gain control signal; and a blocker temporarily blocking the high frequency signal. Using the block control signal, the controller causes the blocker to start blocking the high frequency signal, before the cut-off frequency of the high-pass filter is switched from high to low.

Abstract: Representative implementations of devices and techniques provide communication between networked nodes operating on a communication network medium. In an implementation, a node generates a broadcast frame that includes at least a preamble and a payload. The preamble of the broadcast frame may include supplemental information. The supplemental information may be associated with one or more symbols of the preamble. The supplemental information may contain predetermined header information for use by nodes operating on the communication network medium.

Abstract: This automatic gain control circuit is provided with a variable gain amplifier for amplifying a received signal, has a small circuit size, and makes it possible to reduce the effect of superimposed external noise input within the frequency bandwidth of a received signal. The automatic gain control circuit supplies the output of the variable gain amplifier to an analog/digital converter and comprises: a frequency selection circuit that is connected to the output of the analog/digital converter and that selects a signal within the frequency bandwidth of a received signal, said signal having a narrower bandwidth than the frequency bandwidth; and a control signal generation circuit that generates a control signal for the variable gain amplifier on the basis of the strength of the signal selected by the frequency selection circuit.

Abstract: Disclosed is a system for mitigating co-channel interference (CCI) caused due to narrow multiband signal in white space (WS) modems. The system includes a base-station that includes a base-station transmitter and a base-station receiver. The base-station receiver receives an orthogonal frequency division multiplexing signal (OFDM) from one or more customer premises equipment (CPE) transmitters. An interference detection module detects a presence of co-channel interference in carriers of the OFDM signal and determines co-channel interference affected carriers. A dynamic notch filter module receives the central interference carriers from interference detection module and mitigates the co-channel interference of co-channel interference affected carriers without affecting frame detection capability of the system.

Abstract: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.

Abstract: Embodiments include systems and methods for baseline wander correction gain adaptation in receiver circuits. Some embodiments operate in context of an alternating current coupled transceiver communicating data signals over a high-speed transmission channel, such that the receiver system includes an AC-coupled data input and a feedback loop with a data slicer and an error slicer. A baseline wander correction (BWC) circuit can be part of the feedback loop and can generate a feedback signal corresponding to low-pass-filtered bits data from the data slicer output and having a gain generated according to pattern-filtered error data from the error slicer output. For example, gain adaptation is performed according to error information corresponding to a detected relatively high-frequency data pattern following a long low-frequency pattern.

Abstract: A communication device receives a trigger frame from an access point, the trigger frame configured to prompt the communication device to simultaneously transmit with one or more other communication devices as part of a multi-user uplink transmission. The communication device determines carrier frequency offset (CFO) information based on the trigger frame, and transmits the CFO information to the access point in response to the trigger frame so that the access point can use the CFO to process the multi-user uplink transmission.

Abstract: Embodiments of a method and a system for generating a received signal strength indicator (RSSI) value that corresponds to a radio frequency (RF) signal are disclosed. In an embodiment, a method for generating an RSSI value that corresponds to an RF signal involves obtaining an attenuation factor code in response to applying an automatic gain control (AGC) operation to the RF signal, obtaining an analog-to-digital converter (ADC) code in response to applying an ADC operation to a signal that results from the AGC operation, and combining the attenuation factor code and the ADC code to generate an RSSI value. Other embodiments are also described.

Abstract: A receiver for digital signals includes a radiofrequency stage. A feedback loop controls an amplitude of a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of a baseband signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The amplitude of the modulated radiofrequency signal is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation. A switching circuit operates to selectively short circuit a resistive component of the RC network during receiver start-up.