Device for emitting-receiving signals in two symmetrical frequency bands in relation to a first frequency F.sub.CA and such that each one of the bands comprises symmetrical channels in relation to second frequencies F.sub.CLA, F.sub.CUA, comprising: a first circuitry generating a signal of frequency F.sub.A, a signal of frequency F.sub.B=F.sub.A/N1, a signal of frequency F.sub.1=|F.sub.CA−F.sub.CLA| and a periodic signal of frequency F.sub.2 equal to the difference between a central frequency of one of the channels and the associated second frequency, and wherein F.sub.A=N1.Math.(F.sub.CLA+F.sub.1)/(N1+1); a second circuitry able to carry out non-linear operations between the signals of frequencies F.sub.A and F.sub.1 and those of frequencies F.sub.B and F.sub.2, generating multitone signals comprising the frequencies F.sub.A−F.sub.1, F.sub.A+F.sub.1, F.sub.B−F.sub.2 and F.sub.B+F.sub.2.

Device for emitting-receiving signals in two symmetrical frequency bands in relation to a first frequency F.sub.CA and such that each one of the bands comprises symmetrical channels in relation to second frequencies F.sub.CLA, F.sub.CUA, comprising: a first circuitry generating a signal of frequency F.sub.A, a signal of frequency F.sub.B=F.sub.A/N1, a signal of frequency F.sub.1=|F.sub.CA−F.sub.CLA| and a periodic signal of frequency F.sub.2 equal to the difference between a central frequency of one of the channels and the associated second frequency, and wherein F.sub.A=N1.Math.(F.sub.CLA+F.sub.1)/(N1+1); a second circuitry able to carry out non-linear operations between the signals of frequencies F.sub.A and F.sub.1 and those of frequencies F.sub.B and F.sub.2, generating multitone signals comprising the frequencies F.sub.A−F.sub.1, F.sub.A+F.sub.1, F.sub.B−F.sub.2 and F.sub.B+F.sub.2.

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.

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.

Embodiments of the present disclosure utilizes the natural properties of RFI noise on a wireline link. Since differential RFI noise in the system has some correlation with the common mode noise on the cable, a replica of RFI noise can be regenerated by an adaptive filter based on information about the common mode noise. The replica RFI is subtracted from the equalizer output prior to the data decision circuitry or slicer. In this method, the system does not require expensive cable, nor does the equalizer suffer additional loss due to an RFI notch filter. Since RFI can be detected and mitigated, this information can also be coupled to safety systems to increase functional safety under high EMI conditions.

Disclosed an apparatus and a method for simultaneously providing a voice service and a data service in an electronic device. The electronic device includes: an antenna for transmitting or receiving one or more signals of a first signal corresponding to a first communication network and a second signal corresponding to a second communication network; a first communication control module for processing the first signal; a second communication control module for processing the second signal; and a divider for distributing the one or more signals received through the antenna to the first communication control module and the second communication control module.

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.

Embodiments disclosed herein relate to transition of a radio frequency module between a first operating state and a second operating state. The first and second states may be passive/slow (e.g., non-active) states or active/fast states. A passive state may include a sleep state, an idle state, an off state, or a low power state. An active state may include a receiving state or a transmitting state, for receiving and transmitting signals, respectively. If the first operating state is an active state and the second operating state is a passive state, the transition from the first operating state may be delayed such that the radio frequency module transitions directly from the first operating state to a third operating state. This enables the radio frequency module to avoid entering a passive second state with a slow settling time which can interfere with communications and operation of the radio frequency module.

A RF downconverter-tuner system is provided. A RF downconverter-tuner system to convert one or more input signals into a lower range of frequency bands, comprising one or more RF input ports for receiving the one or more input signals, one or more RF output ports for transmitting the output signal and a plurality of dual-mode switches coupled to two or more of the one or more RF input ports, the one or more RF output ports and one or more receive chain comprising one or more mixers for converting the one or more input signals into the lower range of frequency bands, a plurality of filters, a bypass mode, a back-end receiver coupled to the one or more RF output ports, an oscillator implemented with a frequency synthesis circuit, a plurality of amplifier stages, one or more signal detection circuits and a plurality of controller ports.

Within many applications impulse radio based ultra-wideband (IR-UWB) transmission offers significant benefits for very short range high data rate communications when compared with existing standards and protocols. In many of these applications the main design goals are very low power consumption and very low complexity design for easy integration and cost reduction. Digitally programmable IR-UWB transmitters using an on-off keying modulation scheme on a 0.13 microns CMOS process operating on 1.2V supply and yielding power consumption as low as 0.9 mW at a 10 Mbps data rate with dynamic power control are enabled. The IR-UWB transmitters support new frequency hopping techniques providing more efficient spectrum usage and dynamic allocation of the spectrum when transmitting in highly congested frequency bands. Biphasic scrambling is also introduced for spectral line reduction. Additionally, an energy detection receiver for IR-UWB is presented to similarly meet these design goals whilst being adaptable to address IR-UWB transmitter specificity.