A radio receiver has a front end having a shared amplification path for both radio frequency signals and intermediate frequency signals. In one example, the shared amplification path can include a low noise amplifier and an attenuator. By amplifying both radio frequency (RF) signals and intermediate frequency (IF) signals with the same shared amplification path, gains in power efficiency, and reductions in cost and circuit size can be achieved.

A receiver device includes an I-Q mixer circuit configured to provide an I-phase signal and a Q-phase signal. The receiver device also includes a first analog-to-digital converter (ADC) circuit configured to digitize the I-phase signal. The receiver device also includes a second ADC circuit configured to digitize the Q-phase signal. The receiver device also includes a 25% duty cycle clock generator configured to provide 25% duty cycle clock signals to the I-Q mixer. The 25% duty cycle clock generator includes a divider circuit with an inverter ring arrangement.

Aspects of the subject disclosure may include, a system for receiving second signals from a switch responsive to the switch receiving first signals a first waveguide system, wherein the first waveguide system facilitates generating the first signals responsive to receiving first electromagnetic waves that propagate along a transmission medium. The system further facilitates selecting a communication device according to the second signals, and transmitting a first wireless signal directed to the communication device, wherein the first wireless signal conveys first data supplied by the second signals. Other embodiments are disclosed.

Aspects of the present disclosure provide a method for wireless communication by a wireless communications device in a wireless network, for example, for enabling carrier aggregation (CA) and dual connectivity (DC) under different subframe structures in a 5G system. In certain cases, enabling CA and DC in a 5G system may involve configuring and grouping component carriers based on a numerology criteria associated with each component carrier. The grouped component carriers may then be used to communicate in the wireless network.

A receiver device includes an I-Q mixer circuit configured to provide an I-phase signal and a Q-phase signal. The receiver device also includes a first analog-to-digital converter (ADC) circuit configured to digitize the I-phase signal. The receiver device also includes a second ADC circuit configured to digitize the Q-phase signal. The receiver device also includes a 25% duty cycle clock generator configured to provide 25% duty cycle clock signals to the I-Q mixer. The 25% duty cycle clock generator includes a divider circuit with an inverter ring arrangement.

A distributed radio frequency communication system facilitates communication between a wireless terminal and a core network. The system includes a remote radio unit (RRU) coupled to at least one antenna to communicate with the wireless terminal. The RRU includes electronic circuitry to perform at least a first portion of a first-level protocol of a radio access network (RAN) for communicating between the wireless terminal and the core network. The system also includes a baseband unit (BBU) coupled to the core network, and configured to perform at least a second-level protocol of the RAN. A fronthaul link is coupled to the BBU and the RRU. The fronthaul link utilizes an adaptive fronthaul protocol for communication between the BBU and the RRU. The adaptive fronthaul protocol has provisions for adapting to conditions of the fronthaul link and radio network by changing the way data is communicated over the fronthaul link.

Aspects of the subject disclosure may include, a system for receiving first electromagnetic waves that propagate along a transmission medium, where the first electromagnetic waves convey first data, generating first signals by frequency-shifting the first electromagnetic waves without demodulating the first electromagnetic waves, and providing the first signals to one or more modems that facilitate demodulation of the first signals to second signals, and distribution of a first portion of data conveyed by the second signals to an access point, a second portion of the data to a second waveguide system, or combinations thereof. Other embodiments are disclosed.

Systems and methods for combining signals from multiple active wireless receivers are discussed herein. An exemplary system comprises a first downconverter, a phase comparator, a phase adjuster, and a second downconverter. The first downconverter may be configured to downconvert a received signal from a first antenna to an intermediate frequency to create an intermediate frequency signal. The phase comparator may be configured to mix the received signal and a downconverted signal to create a mixed signal, compare a phase of the mixed signal to a predetermined phase, and generate a phase control signal based on the comparison, the downconverted signal being associated with the received signal from the first antenna. The phase adjuster may be configured to alter the phase of the intermediate frequency signal based on the phase control signal. The second downconverter may be configured to downconvert the phase-shifted intermediate frequency signal to create an output signal.

Aspects of the subject disclosure may include, for example, a network termination includes a downstream channel modulator modulates downstream data into downstream channel signals to convey the downstream data via a guided electromagnetic wave that is bound to a transmission medium of a guided wave communication system. A host interface sends the downstream channel signals to the guided wave communication system and receives upstream channel signals corresponding to upstream frequency channels from the guided wave communication system. An upstream channel demodulator demodulates upstream channel signals into upstream data. Other embodiments are disclosed.

A system, method, and/or apparatus may track an intermediary device within a communications system. For example, a first signal may be transmitted from a first device in a communications system to the intermediary device in the communications system. The first signal from the first device may be modified (e.g., by a passive component of the intermediary device) to create a modified signal. The modified signal may be passed by the intermediary device to a second device in the communications system. The second device may be upstream or downstream from the first device and the intermediary device in the communications system. A type for the intermediary device may be determined based on the modification to the first signal. The second device may be configured to determine an identify of the first device associated with the intermediary device.