Abstract: Methods and apparatus for providing quasi-licensed spectrum access within a prescribed area or venue, including to users or subscribers of one or more Mobile Network Operators (MNOs). In one embodiment, the quasi-licensed spectrum utilizes 3.5 GHz CBRS (Citizens Broadband Radio Service) spectrum allocated by a Federal or commercial SAS (Spectrum Access System) to a managed content delivery network that includes one or more wireless access nodes (e.g., CBSDs) in data communication with a controller, and the core(s) of the MNO network(s). In one variant, the controller dynamically allocates (i) spectrum within the area or venue within CBRS bands, and (ii) MNO “roaming” users or subscribers to CBRS bands (e.g., via extant LTE-TD technology). In one particular implementation, the managed network comprises a Multiple Systems Operator (MSO) network such as a cable or satellite network, and the MSO and MNO coordinate to implement user-specific and/or data-specific policies for the roaming MNO subscribers.

Abstract: This application provides a data transmission method and apparatus, and a system.

Abstract: A switch-less transceiver has parallel LC resonances that act as OFF switches and series LC resonances act as ON switches when resonating at the transmit (TX) or receive (RX) frequency. When the transmitter is disabled, no current flows through series LC filters. Instead, series impedances to ground provide an RF ground to the transmitter output node. A TX inductor between the transmitter output node and the antenna is in parallel with a TX blocking capacitor to ground, which together form a parallel resonance to ground that has a high impedance when resonating at the receiver frequency. This high impedance acts as an OFF switch to block antenna signals from entering the transmitter. The two paths are in parallel, presenting a high impedance to the antenna and forming an OFF switch when the receiver is disabled.

Abstract: A signal acquiring unit (3) performs signal detection and initial synchronization on an output from a RF frontend (2) by performing circular convolution operation using a first code replica corresponding to a case where a ranging code does not change in polarity and a second code replica corresponding to a case where a ranging code changes in polarity. A signal tracking unit (4) performs synchronization tracking using a result of signal acquisition output from the signal acquiring unit (3) as an initial value.

Abstract: A phase interpolator of a physical layer (PHY) device comprise a phase interpolator to generate a set of asynchronous sampler clocks. A sampler of the PHY device samples a calibration data pattern using a first sampler clock from the set of asynchronous sampler clocks. A calibration control component of the PHY device detects a misalignment of a phase relationship among the set of asynchronous sampler clocks based on the sampled data. In response to detecting the misalignment, the calibration control component calibrates the first sampler clock using a second sampler clock and a third sampler clock.

Abstract: A system is disclosed, comprising: a wireless fronthaul access point coupled to a radio mast and in communication with a remote baseband unit, the wireless fronthaul access point further comprising a first millimeter wave wireless interface; and an antenna-integrated radio for providing access to user equipments (UEs), mounted within line of sight on the radio mast with the wireless fronthaul access point, the antenna-integrated radio further comprising: a second millimeter wave wireless interface configured to receive the digital I and Q signaling information from the remote baseband unit wirelessly via the wireless fronthaul access point, wherein the wireless fronthaul access point thereby wirelessly couples the remote baseband unit and the antenna-integrated radio.

Abstract: An electronic device is disclosed and may comprise: an amplifier for amplifying a signal; a filter circuit for filtering the amplified signal; a coupler for delivering a feedback signal with respect to the filtered signal; an antenna for radiating the filtered signal to the outside; and a communication circuit for generating the signal, wherein communication circuit: generates a signal, using designated information; delivers the generated signal to the amplifier; acquires, from the coupler, a first feedback signal and a second feedback signal with respect to signals amplified by the amplifier; and determines whether there is an error in a signal transmitted to an external apparatus, on the basis of the designated information, magnitude information of the first feedback signal, and frequency information of the second feedback signal. In addition, various embodiments recognized through the specification are possible.

Abstract: A first access point (AP), which is associated with one or more first client stations, generates an announcement frame that announces a coordinated multi-user (MU) transmission involving multiple APs including the first AP and one or more second APs. Each of the second APs is associated with a respective one or more second client stations. The announcement frame is generated to indicate respective one or more frequency resource units (RUs) allocated to the one or more second APs for the coordinated MU transmission. The first AP transmits the announcement frame to the one or more second APs to initiate the coordinated MU transmission, and participates in the coordinated MU transmission while the one or more second APs also participate in the coordinated MU transmission.

Abstract: Embodiments are disclosed for a lookup table-based coding mechanism for communication systems. An example method includes receiving a signal to be transmitted, converting the signal into a converted analog signal using a digital to analog converter, receiving channel state information for a channel, calibrating the lookup table based on the channel state information, utilizing the calibrated lookup table to generate a coded analog signal based on the converted signal, and transmitting the coded analog signal, wherein the coded signal compensates for channel distortion of the channel.

Abstract: A method for providing nonlinear self-interference cancellation of a wireless communication device includes: receiving digital samples of an interfering signal having a first sampling rate and a corrupted victim signal having a second sampling rate; generating a kernel vector based on the interfering signal, wherein the kernel vector has terms of nonlinear self-interference; estimating the nonlinear self-interference of the corrupted victim signal using the terms of the nonlinear self-interference; and providing an estimation of a desired signal by cancelling the nonlinear self-interference from the corrupted victim signal.

Abstract: A radio receiver includes a downconverter for downconverting dual sideband signals such as Binary Offset Carrier (BOC) signals from multiple sources to produce an upper and a lower sideband signal, and chip-matched filters for filtering each of the sideband signals. The output of each filter is provided to a series of separate channels, one for each source, where there are at least Early, Prompt and Late gates. Each gate has a nearest-neighbour sampler and a multiplier for multiplying with an appropriate part of a spreading code, a mixer for removing Doppler or other frequency offsets and an integrator. The invention provides a means for demodulating signals such as BOC modulated satellite navigation signals in an efficient manner by using a single downconverter for the received signals of interest from the multiple sources.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling. The disclosure also pertains to related devices and methods.

Abstract: A circuit for signal classification in a digital pre-distortion (DPD) system is provided. The circuit includes a first frequency path with a positive frequency translation to generate a first power level corresponding to a signal output of the first frequency path, a second frequency path with a negative frequency translation to generate a second power level corresponding to a signal output of the second frequency path, and a third frequency path configured to filter the input signal via a high pass filter (HPF) and to generate a third power level corresponding to a signal output of the third frequency path. The circuit further includes a processing unit configured to compute frequency content metrics corresponding to the input signal based on the first power level, the second power level and the third power level for selecting a set of DPD coefficients for the DPD circuit.

Abstract: A method for implementing an efficient clock recovery for multilane high-speed Serializer/Deserializer (SerDes) system having M interleaved lanes, has a non-recursive architecture.

Abstract: A transmitter includes a processor configured to convert a primary sequence of modulation symbols into a primary signal using a universal pulse shape. The processor is further configured to convert an auxiliary sequence of modulation symbols, created from the primary sequence, to an auxiliary signal using an altered version of the universal pulse shape. In addition, the processor is configured to combine the primary signal and the auxiliary signal to create a joint output signal.

Abstract: An integrated circuit for generating an equalized signal, according to a channel, from serial data includes a shift register that extracts a symbol sequence from the serial data. A data storage stores values of an equalized digital signal corresponding to potential symbol sequences corresponding to a filter coefficient sequence. A lookup table outputs the equalized digital signal of a value corresponding to the extracted symbol sequence. A digital-to-analog converter (DAC) converts the equalized digital signal into the equalized signal. A controller refreshes the lookup table, based on at least one of values stored in the data storage and values included in the lookup table, in response to a control signal.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE determines whether a beam associated with a reference signal of a cell has an In-Device Coexistence (IDC) problem. The UE determines whether to include information associated with the reference signal in a report based on whether the beam associated with the reference signal has the IDC problem. The UE transmits the report to a network node.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling. The disclosure also pertains to related devices and methods.

Abstract: A system and method are described which enable planned evolution and obsolescence of multiuser wireless spectrum. One embodiment of such a system includes one or multiple centralized processors and one or multiple distributed nodes that communicate via wireline or wireless connections. The distributed nodes may share their identification number and other reconfigurable system parameters with the centralized processor. The information about all distributed nodes may be stored in a database that is shared by all centralized processors. The reconfigurable system parameters may comprise power emission, frequency band, modulation/coding scheme. The distributed nodes may be software defined radios such as FPGA, DSP, GPU and/or GPCPU that run algorithms for baseband signal processing and may be reconfigured remotely by the centralized processor. A cloud wireless system may be used wherein the distributed nodes are reconfigured periodically or instantly to adjust to the evolving wireless architecture.

Abstract: Provided are M signal processors that respectively generate modulated signals for M reception apparatuses (where M is an integer equal to 2 or greater), a multiplexing signal processor, and N antenna sections (where N is an integer equal to 1 or greater). When transmitting multiple streams, each of the M signal processors generates two mapped signals, generates first and second precoded signals by precoding the two mapped signals, periodically changes the phase of signal points in the IQ plane with respect to the second precoded signal, outputs the phase-changed signal, and outputs the first precoded signal and the phase-changed second precoded signal as two modulated signals. When transmitting a single stream, each of the M signal processor outputs a single modulated signal. The multiplexing signal processor multiplexes the modulated signals output from the M signal processors, and generates N multiplexed signals. The N antenna sections respectively transmit the N multiplexed signals.