H04B1/406

SYSTEMS AND METHODS FOR DETECTING LOCAL OSCILLATOR LEAKAGE AND IMAGE TONE IN I/Q MIXER BASED TRANSCEIVERS
20220052644 · 2022-02-17 ·

According to one embodiment, a transceiver includes: a radio transmitter including a power amplifier; a detector circuit including: a squaring circuit configured to receive an output of the power amplifier of the radio transmitter and configured to produce an output current; and a DC current absorber electrically connected to an output terminal of the squaring circuit.

MULTI-MODE TRANSCEIVER ARRANGEMENT
20170250737 · 2017-08-31 ·

A multi-mode transceiver arrangement configured to provide for transmission and reception of signalling of a plurality of wireless sensor network protocols, the transceiver comprising; a single transmission path and a plurality of parallel receive paths; said transmission path including a modulator element configured to modulate, at any one time, a signal for transmission in accordance with a particular one of the plurality of wireless standards and a frequency reference element configured to provide a reference frequency to generate signalling for the antenna at a predetermined frequency; said receive paths each configured to receive signalling over a different, predetermined frequency band and including a demodulator to provide a demodulated signal for processing by a controller configured to provide signals to the transmission path and receive signals from the demodulators for symbol recognition thereby enabling the multi-mode transceiver to communicate with a plurality of wireless sensor networks simultaneously.

Communication hardware virtualization

A communication system comprising: input buffers adapted for buffering incoming data streams of samples from one or more channels; a receiver adapted for sequentially processing data from the input buffers; a processing rate of the receiver is higher than or equal to an incoming data rate of the incoming data; context memory adapted for saving an internal status of the receiver after processing the data corresponding with an input buffer before switching to a next input buffer and for restoring the internal status, wherein the receiver is adapted for processing the incoming data in a frame detection phase, and in a frame demodulation phase in which frames and/or subframes are demodulated into bits and wherein the internal status of the receiver related to an input buffer is only saved and restored in the frame detection phase or before and after demodulating subframes.

RADIO MODULE, METHOD TO OPERATE A RADIO MODULE, RADIO TERMINAL, METHOD TO OPERATE A RADIO TERMINAL

A radio module (RM) for a radio terminal (T) is provided, wherein the radio module (RM) comprises: a transmitter (Tx) configured to transmit within a time period data either on a first radio channel (RCH1) of a first radio communications network according to a first operating mode or on a second radio channel (RCH2) of a second radio communications network according to a second operating mode; and a controller (CTRL) being configured to schedule a selection of one of the operating modes of the transmitter (Tx), wherein the selection comprises switching of at least one parameter of the transmitter (Tx) according to the selected operating mode.

Leakage cancellation in a radar receiver

A transceiver includes a transmitter, a frequency synthesizer coupled to the transmitter, a receiver coupled to the frequency synthesizer and a voltage sensor; and a digital controller coupled to the voltage sensor, the receiver, and the transmitter, wherein based on a DC voltage measurement of an IF signal made by the voltage sensor, a relative phase adjustment occurs of a relative phase associated with a local oscillator (LO) port and a radio frequency (RF) port of the receiver.

Apparatus and method for controlling in-device coexistence interference in wireless communication system

Method and apparatus for controlling in-device coexistence (IDC) interference in a wireless communication system are described in the present invention. The present invention includes transmitting UE capability information whether the UE has a capability to measure IDC, to a base station (BS); receiving measurement configuration information whether the UE is allowed to send IDC indication, from the BS; and transmitting the IDC indication and at least one of measurements which are a measurement in consideration of IDC and a measurement without consideration of IDC to the BS. It is possible to control reducing occurrence of in-device coexistence interference.

Ultra low power sensing platform with multimodal radios

An apparatus comprises a system on a chip (SoC). In some embodiments, the SoC includes a power supply circuit, a power management circuit operatively coupled to the power supply circuit, a first wireless communications circuit and a second wireless communications circuit. The first wireless communications circuit is configured to receive an RF signal and is operatively coupled to the power supply circuit and the power management circuit. The first wireless communications circuit has a net radio frequency (RF) power gain no more than unity before at least one of downconversion of the RF signal or detection of the RF signal. The second wireless communications circuit is operatively coupled to the power supply circuit and the power management circuit.

Method and apparatus for implementing service distribution for dual-network dual-standby terminal
09769872 · 2017-09-19 · ·

A method and apparatus used for a dual-network dual-standby terminal implementing service distribution are disclosed in the present document. The dual-network dual-standby terminal includes an application module, a first communication module and a second communication module. When a user of the dual-network dual-standby terminal initiates a Circuit Switched (CS) service, the application module selects the first communication module, and the first communication module performs communication through a 2G network; when a user of the dual-network dual-standby terminal initiates a Packet Switched (PS) service, the application module selects the second communication module, and the second communication module performs communication through a 3G network or a 2G network.

Method and apparatus for handling in-device co-existence interference in a user equipment

A method and apparatus for handling in-device co-existence interference in a user equipment are provided. In an exemplary method, a Long Term Evolution (LTE) activity scheduled to be performed during an inactive time period of an LTE module in a user equipment is determined. It is determined whether the LTE module is to be allowed to perform the LTE activity during the inactive time period. If the LTE activity is to be allowed, then the LTE module is allowed to perform the LTE activity during the inactive time period. Otherwise, the LTE module is not allowed to perform the LTE activity during the inactive time period to provide interference free time for an Industrial, Scientific and Medical (ISM) module in the user equipment. Moreover, the disallowed LTE activity is scheduled to be performed during an active time period following the inactive time period.

TECHNIQUES FOR DETECTING A CANDIDATE INFORMATION SIGNAL OF UNKNOWN SIGNAL STRENGTH USING RECEIVERS SET TO DIFFERENT FIXED GAIN STATES
20170264356 · 2017-09-14 ·

A method for wireless communication includes monitoring a channel of a radio frequency spectrum band using at least a first receiver and a second receiver in parallel; determining, during the monitoring, at least a first received signal strength of a first receiver output of the first receiver, and a second received signal strength of a second receiver output of the second receiver; and selecting, based on the first received signal strength and the second received signal strength, one or both of the first receiver output or the second receiver output for use in decoding a candidate information signal of unknown signal strength. The first and second receivers are set to first and second fixed gain state providing the first and second receivers with first and second dynamic ranges. The second dynamic range partially overlaps the first dynamic range to provide the wireless device an extended dynamic range.