A cellular communication device is configured to use Non-Standalone Architecture (NSA) for communicating with a cellular communication network using 4.sup.th-Generation (4G) Long-Term Evolution (LTE) and 5.sup.th-Generation (5G) New Radio (NR) radio access technologies. In NSA mode, the device may receive separate transmit power control commands for LTE and NR transmissions, respectively. In some situations, the cellular communication device may be commanded to use LTE and NR transmit powers that when combined would exceed regulatory limits or performance limits. In these situations, LTE and NR uplink transmissions are scheduled to implement time-division multiplexing, so that the LTE and NR uplink transmissions occur during different time intervals rather than concurrently.

An example system comprises a first antenna and a modem. The first antenna is configured to receive a signal from a transmitting radio frequency unit. The signal includes data and a known sequence. The modem is configured to retrieve the known sequence from the signal, transform the known sequence and the data into a frequency domain, calculate averages of groups of neighboring frequency points in the frequency domain to reduce the effect of nonlinear noise in the signal, the neighboring frequency points corresponding to the preamble in the frequency domain, compare the calculated averages to an expected frequency response in the frequency domain, determine a correction filter to apply to the data based on the comparison, apply the correction filter on the data in the frequency domain to create corrected data, transform the corrected data from the frequency domain to the time domain, and provide the data.

Techniques discussed herein can facilitate handling of DL (Downlink) control and data channels having different numerologies in NR (New Radio). One example embodiment comprises an apparatus employable by a UE (User Equipment) configured to generate a report comprising capability information associated with the UE, wherein the capability information indicates whether the UE supports multiplexing of multiple numerologies within a common symbol in a FDM (Frequency Division Multiplexing)-based manner; process first higher layer signaling that configures one or more control resource sets of a NR (New Radio) PDCCH (Physical Downlink Control Channel), wherein the one or more control resource sets are associated with one or more numerologies in accordance with the UE capability information; and demodulate a NR PDSCH (Physical Downlink Shared Channel) from a resource distinct from resources of the NR PDCCH.

Techniques discussed herein can facilitate handling of DL (Downlink) control and data channels having different numerologies in NR (New Radio). One example embodiment comprises an apparatus employable by a UE (User Equipment) configured to generate a report comprising capability information associated with the UE, wherein the capability information indicates whether the UE supports multiplexing of multiple numerologies within a common symbol in a FDM (Frequency Division Multiplexing)-based manner; process first higher layer signaling that configures one or more control resource sets of a NR (New Radio) PDCCH (Physical Downlink Control Channel), wherein the one or more control resource sets are associated with one or more numerologies in accordance with the UE capability information; and demodulate a NR PDSCH (Physical Downlink Shared Channel) from a resource distinct from resources of the NR PDCCH.

A terminal communicating with a base station by using an FDD cell and a TDD cell includes a reception unit that performs reception over a PDCCH transmitted using a DCI format. In a case where the TDD cell is configured as a primary cell for the terminal, a first uplink reference UL-DL configuration used for determining an interval between reception of the PDCCH indicating transmission of a PUSCH and the transmission of the PUSCH is configured for the TDD cell, and a second uplink reference UL-DL configuration used for determining whether or not to use DAI included in the DCI format of the PDCCH indicating the transmission of the PUSCH is configured for the FDD cell.

A host device uses an intermediate frequency determined based on frequencies of a second-order nonlinear intermodulation distortion component and a harmonic component which are generated in an analog optical link connected to the host device, for example, an analog optical link of a distributed antenna system (DAS), and precompensates for the second-order nonlinear intermodulation distortion component and the harmonic component generated in the analog optical link.

A terminal communicating with a base station by using an FDD cell and a TDD cell includes a reception unit that performs reception over a PDCCH transmitted using a DCI format. In a case where the TDD cell is configured as a primary cell for the terminal, a first uplink reference UL-DL configuration used for determining an interval between reception of the PDCCH indicating transmission of a PUSCH and the transmission of the PUSCH is configured for the TDD cell, and a second uplink reference UL-DL configuration used for determining whether or not to use DAI included in the DCI format of the PDCCH indicating the transmission of the PUSCH is configured for the FDD cell.

The invention relates to an all-optical regeneration system for regeneration of optical wavelength division multiplexed WDM data signals in an optical WDM communication system. The system comprises a WDM-to-Optical time domain multiplexing OTDM, WDM-to-OTDM, converter, capable of converting an input WDM data signal comprising multiple wavelength channels into an input OTDM data signal comprising multiple time multiplexed time channels. The system further comprises an all-optical regenerator unit being configured for regenerating the input OTDM data signal into an output OTDM data signal. The system additionally comprises an OTDM-to-WDM converter for converting the output OTDM data signal to an output WDM data signal. An input of the all-optical regenerator unit is in optical communication with an output of the WDM-to-OTDM converter, and an output of the all-optical regenerator unit is in optical communication with an input of the OTDM-to-WDM converter. The invention further relates to a method for all-optical regeneration of WDM data signals.

A carrier aggregation diversity antenna module with integrated low noise amplifier banks is disclosed. In an exemplary embodiment, an apparatus includes at least one switch configured to establish a transmit signal path to transmit an uplink signal from at least one diversity antenna and to establish a receive signal path to receive downlink diversity signals from the at least one diversity antenna. The apparatus also includes band selection filters configured to filter the downlink diversity signals to generate at least three diversity band signals. The apparatus also includes a multiplexing amplifier configured to amplify the diversity band signals to generate at least three amplified diversity band signals that are output to a transceiver.

A communication terminal for communicating with a base device by frequency and/or time division multiplexing is described. The communication terminal may be configured to transmit and/or receive signals to and/or from the base device using any of a plurality of numerology types. Furthermore, the communication terminal may be configured to communicate with the base device using a default one of the numerology types and receive a configuration word from the base device. The communication device may further be configured to determine in dependence on the default one of the numerology types and the configuration word a secondary numerology type. The communication device may additionally be configured to communicate with the base device using the secondary numerology type when the secondary numerology type is activated.