Abstract: A method and apparatus for tracking and mitigating phase noise in a communication receiver are disclosed. The phase noise tracking and mitigation apparatus operates in a recursive manner and includes a quantizer for determining data symbols from noise-compensated input values, a phase noise estimator for determining raw phase noise values from the data symbols and a first sequence of uncompensated input values, an error concealment module for removing unreliable samples from the raw phase noise values, a filter operable to filter the raw phase noise values to produce filtered phase noise values, and a phase-noise compensator for determining noise-compensated output values dependent upon the filtered phase noise values and the first sequence of uncompensated input values. Filter coefficients, and initial noise-compensated input values are determined from one or more second sequences of uncompensated input values corresponding to known symbols corrupted by phase noise.

Abstract: A user equipment and a wireless radio frequency assistant in a communication system that supports multiple input multiple output. The wireless radio frequency assistant and the user equipment operate together as a single system. The user equipment controls and activates the wireless radio frequency assistant to transform a first frequency of a radio frequency signal transmitted to the system of user equipment and the wireless radio frequency assistant to a second frequency. The wireless radio frequency assistant transmits the second frequency to the user equipment.

Abstract: A method and apparatus for tracking and mitigating phase noise in a communication receiver are disclosed. The phase noise tracking and mitigation apparatus operates in a recursive manner and includes a quantizer for determining data symbols from noise-compensated input values, a phase noise estimator for determining raw phase noise values from the data symbols and a first sequence of uncompensated input values, an error concealment module for removing unreliable samples from the raw phase noise values, a filter operable to filter the raw phase noise values to produce filtered phase noise values, and a phase-noise compensator for determining noise-compensated output values dependent upon the filtered phase noise values and the first sequence of uncompensated input values. Filter coefficients, and initial noise-compensated input values are determined from one or more second sequences of uncompensated input values corresponding to known symbols corrupted by phase noise.

Abstract: A radio frequency front end of a receiver including a tunable filter receiving a signal; a controller for tuning the tunable filter; and an interference detection circuit configured to detect interference and provide an input to a controller, wherein the controller tunes the tunable filter based on the input from the interference detection circuit. Also a method for removing interference at a radio frequency front end of a receiver, the method detecting interference at an interference detection circuit; and tuning at least one tunable filter to at least one frequency of the detected interference.

Abstract: Embodiments are disclosed of a switchplexer for performing test operations on a radio device. The switchplexer comprises a plurality of test ports corresponding to a plurality of radio device ports and a plurality of switches for routing test signals between the individual test ports. Processing logic is disclosed for controlling actuation of the switches to route test signals between individual test ports. The switchplexer disclosed herein may be incorporated into a mobile test device for self-test operations or may be used in a manufacturing or maintenance facility for testing and calibration operations.

Abstract: Devices and methods are provided for automating client node access of a wireless network access node. A client node comprises a database containing identification data and access procedure data associated with a plurality of wireless network access nodes and credentials data associated with the client node. The client node receives identification data associated with a wireless network access node. The client node then processes the identification data to locate access procedure data in the database corresponding to the wireless network access node. Once identified, the client node then uses the access procedure data to provide its credential data to the wireless network access node. In response, the wireless network access node processes the credential data for approval, and once it is approved, grants the client node access.

Abstract: A user equipment and a wireless radio frequency assistant in a communication system that supports multiple input multiple output. The wireless radio frequency assistant and the user equipment operate together as a single system. The user equipment controls and activates the wireless radio frequency assistant to transform a first frequency of a radio frequency signal transmitted to the system of user equipment and the wireless radio frequency assistant to a second frequency. The wireless radio frequency assistant transmits the second frequency to the user equipment.

Abstract: In some implementations, a method for wireless data communication includes detecting a short-range proximity of a device. In response to at least the detected short-range proximity, a connection to a mechanical assembly is emulated. A communication link including a wireless link is established with the device by transmitting a request according to a wired standard. Signals formatted in accordance with the wired standard are communicated with the device through the wireless link.

Abstract: Methods and wireless devices are provided that implement both multi-carrier reception and diversity processing.