Abstract: A receiver circuit etc. which can receive a high-speed signal is provided without providing a PLL circuit etc. A first receiver circuit for capturing an input signal at a plurality of capture timings determined based on a capture clock signal, includes a delay circuit configured to delay the input signal by a set delay time, and output the delayed input signal, a data latch circuit configured to capture the input signal delayed by the delay circuit at each capture timing, a data test circuit configured to test a latch signal captured by the data latch circuit, and a data test result register configured so that a test result value is set therein. The data test circuit compares the latch signal captured by the latch circuit at each capture timing with an expected value, and outputs the result of the comparison.

Abstract: A system for generating a local clock, configurable to utilize a forwarded clock and a data stream, or a data stream only, as frequency and phase references. In one embodiment, the system includes a phase locked loop that may be referenced to a forwarded clock, or to a phase reference formed from received data, utilizing a sampler, a crossing sampler, and a bang-bang phase detector. The system includes a local phase recovery loop which may utilize the bang-bang phase detector as part of a phase detector for controlling a phase interpolator, the output of the phase interpolator serving as the local clock for clocking received data.

Abstract: In one embodiment, a device receives connected phase data from a neighboring device indicative of one or more electrical phases to which the neighboring device is connected. A determination is made, based on the connected phase data for the neighboring device, whether to transmit the message to the neighboring device over a single electrical phase at a higher output power or over a plurality of electrical phases at a lower output power. The message is then transmitted to the neighboring device over the determined one or more electrical phases.

Abstract: During the booting process of a mobile device inserted with a smartcard, it is determined whether a link indicated by an index administration phone book elementary file is correct according to data validity of the index administration phone book elementary file and an abbreviated dialing number elementary file. When a valid pointer indicated by index administration phone book elementary file corresponds to invalid data of the index administration phone book elementary file, the index administration phone book elementary file is updated to indicate an invalid pointer, thereby preventing the mobile device from displaying blank contact information.

Abstract: In a method for beamforming in a multiple input multiple output (MIMO) communication system, a data unit is received from a communication device via a MIMO communication channel, and it is determined whether the data unit satisfies one or more selection criteria. Further, when it is determined that the data unit satisfies the one or more selection criteria, the data unit is selected to be used in developing a steering matrix for transmitting data units to the communication device.

Abstract: A mobile communication device. The device comprises a memory and a processor. The device further comprises an application stored in the memory that, when executed by the processor at initial set-up of the mobile communication device, responsive to no existing dynamic portion of the animation for the network brand identity, downloads the dynamic portion of the animation from a server through an internet protocol (IP) address link stored in the memory, wherein the dynamic portion is in the form of scalable vector graphics (SVG) and comprises vector transformation information of changing portions of the animation from frame to frame, wherein the dynamic portion of the animation comprises network brand specific objects of the animation and configuration parameters to change the background of the static portion based on the network brand identity of the mobile communication device.

Abstract: An interference suppression method, base station and controlling node of the base station are disclosed. In the method, the controlling node informs via a first control signal the base station which is broadcasting a first synchronization signal containing a first cell identity (ID) and a first reference signal, of broadcasting a second synchronization signal containing a second cell ID and a second reference signal. The controlling node then informs via a second control signal the base station of adjusting signal powers of the first reference signal and the second reference signal to trigger a handover from the first cell ID to the second cell ID.

Abstract: A communication system having a receiver with a linear path and a nonlinear path. As the receiver receives a data signal, it adaptively equalizes the received signal, and amplitude-limits the equalized signal in the nonlinear path using a saturable amplifier limiter or the like. A slicer extracts data from the limited equalized received signal. In the linear path, a clock recovery circuit generates a clock signal from the equalized received signal. A delay circuit in the linear path at least partially compensates for propagation delay in the limiter. Having the clock recovery occur in other than the nonlinear path, a low jitter clock is generated. The limiter enhances the vertical opening of the data eye by increasing the rise and fall times of the limited signal, providing more noise margin for the slicer to operate with and a greater timing margin in which to sample the sliced data.

Abstract: A network node for a telecommunication network is provided. The network node includes a receiving unit adapted to receive a monitoring control message. The monitoring control message includes an identifier relating to a subscriber whose communication is to be monitored. A processing unit is adapted to determine one or more filter parameters for filtering communication relating to the subscriber based on the received monitoring control message. The network node also includes a sending unit adapted to send a filter parameter message indicative of the determined one or more filter parameters to a monitoring node separate from the network node for filtering of the communication relating to the subscriber in accordance with the one or more filter parameters.

Abstract: Tower systems suitable for use at cellular base stations include a tower, an antenna mounted on the tower, a remote radio head mounted on the tower and a power supply. A power cable having a power supply conductor and a return conductor is connected between the power supply and the remote radio head. A shunt capacitance unit that is separate from the remote radio head that is electrically coupled between the power supply conductor and the return conductor of the power cable.

Abstract: Power efficiency is an important design requirement of power amplifiers. To improve power efficiency, a solution proposed in this present disclosure includes an all-digital zero-voltage switching apparatus for directly driving a switching power amplifier through a desired current pulse shape. The apparatus includes a digital engine and a digital-to-analog converter (DAC). The digital engine processes baseband data and generates a digital output. The digital output of the digital engine drives the DAC to generate a digitally controlled current output having that desired current pulse shape. The digitally controlled current output is used to directly drive the switch power amplifier to improve power efficiency. The digitally controlled current output comprising digitally generated current pulses is controlled accurately by the digital engine and the DAC, and thus allows the switching power amplifier to operate optimally with higher power efficiency than conventional power amplifiers.

Abstract: Digital pre-distortion (DPD) systems are often used to improve the linearity of a power amplifier in transmitters. These DPD systems are typically implemented in baseband (prior to modulation). However, ever increasing signal bandwidth requirements limits the practicality of DPD systems implemented in baseband. A DPD system in the radio frequency (RF) domain (as opposed to in baseband) can solve this problem and further improve a DPD system's ability to correct for distortions. The RF domain DPD system is upstream from a digital-to-analog converter, and performs DPD after a baseband signal is up-sampled into the RF domain (after the modulation process). When compared against a baseband DPD system, the RF domain DPD system can handle significantly wider bandwidth, and has an improved ability to linearize a wide variety of distortions present in the spectrum.

Abstract: There is provided switching of an uplink transmission mode. The switching includes manipulating an uplink transmission method and precoding of a demodulation reference signal. The switching may also include utilizing control signaling in indicating to a user terminal that the mode of uplink transmission is to be switched, for example.

Abstract: A method includes: a) assigning, at a MME, after initiation of a user session of an UE, a correlation ID to the user session; b) defining, at the MME, in response to an initiation of a first trace session of the UE during the user session, a first mapping correlation which maps a first trace ID reflecting the first trace session, to the correlation ID, and sending the first mapping correlation to a TCE; and c) defining, at the MME, in response to an initiation of a second trace session of the UE during the user session, a second mapping correlation which maps a second trace ID reflecting the second trace session, to the correlation ID, and sending the second mapping correlation to the TCE. The first and second mapping correlation enable the TCE to assign trace session information to the user session.

Abstract: A method and apparatus used to transmit and receive weighted data transmissions over a plurality of antennas using a plurality of different pilot signals. Different pilot signals are produced and a different pilot signal of the plurality of pilot signals is transmitted on each of a plurality of antennas. Each of the pilot signals is derived from a pseudo noise (PN) sequence and a bit sequence of the PN sequence for each of the pilot signals is different. A plurality of data streams are produced in which each of the data streams has data bits combined with bits of a PN sequence. The data streams are weighted in response to weight information received from a receiving device and the plurality of weighted data streams are transmitted using the plurality of antennas.

Abstract: Filtered signal values are extracted from an input signal. A periodic time segment sequence having a plurality of ordered time segments is defined. Multiple sets of signal values are acquired from the input signal. Each signal value of a set is acquired during a same ordered time segment. Each set is acquired over multiple repetitions of the periodic time segment sequence. Each set is acquired during a different ordered time segment than each other set. For each set of at least two sets, signal values from the set are combined to obtain a separate filtered signal value for each set.

Abstract: In an exemplary system, a first sampling circuit is coupled to a clock module to receive values therefrom. A second sampling circuit is coupled to the clock module to receive the values therefrom. The first sampling circuit includes a first converter, a first phase interpolator, and a first sampler. The first converter is coupled to replace the values with first replacement values for input to the first phase interpolator. The second sampling circuit includes a second converter, a second phase interpolator, and a second sampler. The second converter is coupled to replace the values with second replacement values for input to the second phase interpolator.

Abstract: A digital amplitude modulation apparatus is provided with a measuring section, a fast surge protection section, a slow vector protection section, and a controller. The measuring section detects a voltage and a current from an RF signal. The fast surge protection section calculates an SWR from a detection signal of the measuring section, and obtains a first upper limit of the number of power amplifiers which can be put into an ON state based on the SWR and generates a first control signal. The slow vector protection section obtains a reflection coefficient from the output detection signal of the measuring section, and obtains a second upper limit of the number of the power amplifiers which can be put into an ON state based on the reflection coefficient and generates a second control signal. The controller controls the power amplifiers to be ON/OFF.

Abstract: For each base station of K base stations of a cellular communications network a maximum number of wanted data streams per carrier is decided that is to be scheduled to a terminal accessing the cellular communications network. The terminal has NR receive antennas and K is an integer equal to or greater than two. Information regarding the decision is signaled to at least one of the K base stations.

Abstract: An output signal is developed. A periodic time segment sequence having a multiple ordered time segments is defined. The periodic time segment sequence is repeated. A plurality of sets of signal values are provided to an output, thereby generating the output signal. Each set of signal values is provided during a different ordered time segment than each other set. Each signal value of a set is provided during a different repetition of the periodic time segment sequence. Each set of signal values, in sequence, has statistical dependence with at least one other set of signal values, in sequence.