Abstract: Within a regeneration device, regenerate a first input signal having a first timestamp and an inadequate signal-to-noise ratio and bypass a second input signal having a second timestamp and having an adequate signal-to-noise ratio. With a central processing server coupled to the device, obtain, from a delay tracking database, a first delay associated with a first signal path for the first input signal and a second delay associated with a second signal path for the second input signal. With the server, cause to be sent downstream the regenerated first input signal together with the first timestamp and the first delay, and the non-regenerated second input signal together with the second timestamp and the second delay.

Abstract: Systems and methods enable session sharing for session-based remote direct memory access (RDMA). Multiple queue pairs (QPs) can be added to a single session and/or session group where each of the QPs has a common remote. Systems and methods may query a session ID for an existing session group and then use the session ID with an add QP request to join additional QPs to an existing session. Newly added QPs may share one or more features with existing QPs of the session group, such as encryption parameters. Additionally, newly added QPs may be configured with different performance or quality of service requirements, thereby isolating performance, and permitting true scaling for high performance computing applications.

Abstract: A functional module (200) for an electrical connection enclosure comprises one or more monitoring-and-control units (138), a protection unit (140) common to all the monitoring-and-control units (138), supplying electrical power to all the monitoring-and-control units and electrically protecting all the monitoring-and-control units, a segment of computer bus (204) connecting all of the monitoring-and-control units to an industrial computer, just as many external connection modules (208) and input-output modules (206) as monitoring-and-control units, and a support structure. The height of the monitoring-and-control units can be equal to 1U, 2U, 3U, 4U, 5U or 6U, “U” designating a unit height corresponding to a base height of a monitoring-and-control units, and the functional module has a main height (H4) equal to 6U and can accommodate any technically permissible combination of monitoring-and-control units, depending on the height of these control units.

Abstract: The disclosure relates to post-4th generation (4G) communication systems, such as 5th generation (5G) or 6th generation (6G), which support a higher data rate than the long term evolution (LTE) or 4G communication systems. A method and an apparatus for transmitting and receiving signals in a frequency-asynchronous non-orthogonal multiple access (FA-NOMA) communication system are provided. The method for transmitting a signal by a base station in an FA-NOMA system includes determining a frequency offset to be applied to a first signal transmitted to a first user equipment (UE) based on a second signal transmitted to a second UE, determining information for interference caused by the frequency offset, determining at least one pre-processing factor for the first UE based on the information for the interference, and transmitting a third signal including at least one first pilot to the first UE using the at least one pre-processing factor. The second signal includes at least one second pilot.

Abstract: The present invention relates generally to providing a system and method for monitoring devices relative to a user defined geographic area using an enablement platform for building web sites and web applications using data storage, management and publication capabilities of hosted web services. The system and method for monitoring M2M devices relative to a user defined geographic area (geofence) are built on existing AerCloud concepts by allowing user to define location attributes and by using the user defined location attributes to configure and evaluate geofence parameters and issue alerts if the devices are performing outside the geofence parameters.

Abstract: In one embodiment, a method in a wireless device (110) for adaptive HARQ retransmissions comprises receiving, from a network node (100), a request to initiate an adaptive hybrid automatic repeat request (HARQ) retransmission. The method comprises identifying a HARQ process associated with the HARQ retransmission request and determining whether a HARQ buffer of the HARQ process is empty. In response to determining that the HARQ buffer is empty, the method comprises not delivering the HARQ information to the HARQ process and not triggering an adaptive HARQ retransmission.

Abstract: Systems, device, and methods related to estimating a Signal to Noise Ratio (SNR) of a signal are disclosed. A method of estimating an SNR includes setting a threshold of a comparator of a physical layer device to a first value, applying a signal to the comparator, and determining a first bit error number of an output of the comparator with the threshold set at the first value. The method also includes setting the threshold of the comparator to a second value that is different from the first value, applying the signal to the comparator, and determining a second bit error number of the output of the comparator with the threshold set at the second value. The method further includes determining an SNR of the signal based on the first bit error number and the second bit error number.

Abstract: Methods and apparatuses for improve clocking scheme to reduce power consumption are presented. The apparatus includes a host configured to communicate with a memory via a link. The host is further configured to receive a first clock from the memory; to receive, based on the first clock, data from the memory, in a first mode of a read operation; to generate a second clock, the second clock being generated independent of the first clock; and to receive, based on the second clock, data from the memory, in a second mode of the read operation.

Abstract: Disclosed is an adaptive stylus receiver to adaptively determine presence of narrowband interference. The receiver comprises an analog-to-digital converter to digitize an incoming digitally modulated (DM) signal at a predetermined sampling frequency, a digital band pass filter configured to receive digitized DM signal and to generate a first set of frequencies from the digitized DM signal, and a frequency detection logic to adaptively determine presence of narrowband interference in a first set of frequencies, the frequency detection logic configured to estimate frequency components from the first set of frequencies, provide a first set of coefficients to a narrowband notch filter, binning of coefficients for frequencies below a threshold value, adaptively estimate narrowband notch filter coefficients by binning and provide estimated narrowband notch filter coefficients to the narrowband notch filter to suppress the narrow band interference from the first set of frequencies.

Abstract: A transmitter device includes a transmitter including a first oscillator circuitry, a signal processing circuitry, and a calibration circuitry, and a second oscillator circuitry. The first oscillator circuitry is configured to output a first oscillating signal. The signal processing circuitry is configured to mix calibration signals according to the first oscillating signal, in order to emit a first output signal. The calibration circuitry is configured to detect a power of the first output signal to generate coefficients, and generate the calibration signals according to the coefficients, an in-phase data signal, and a quadrature data signal. The second oscillator circuitry is disposed adjacent to the transmitter, and is configured to output a second oscillating signal. The calibration signals are configured to reduce a pulling generated by both of the first output signal and the second oscillating signal to the first oscillator circuitry.

Abstract: A frequency delta sigma modulation signal output circuit includes a phase modulation circuit that outputs a phase modulation signal based on a delay signal obtained by delaying a signal to be measured, in synchronization with the signal to be measured, and a frequency ratio digital conversion circuit that generates a frequency delta sigma modulation signal using a reference signal and the phase modulation signal.

Abstract: In one embodiment, a method in a wireless device for adaptive HARQ retransmissions comprises receiving, from a network node, a request to initiate an adaptive hybrid automatic repeat request (HARQ) retransmission. The method comprises identifying a HARQ process associated with the HARQ retransmission request and determining whether a HARQ buffer of the HARQ process is empty. In response to determining that the HARQ buffer is empty, the method comprises not delivering the HARQ information to the HARQ process and not triggering an adaptive HARQ retransmission.

Abstract: A system to create periodic pulse sequences with defined absolute phase comprises a phase coherent analyzer and a pulse generator. The phase coherent analyzer and the pulse generator are connected with each other. The pulse generator has a clock input connected to the analyzer for receiving a clock signal from the analyzer. The system comprises a trigger line via which a marker signal is provided to at least one of the analyzer and the pulse generator. The marker signal temporally aligns an output signal of the pulse generator with a measurement process of the analyzer. Further, a method of creating periodic pulse sequences with defined absolute phase is described.

Abstract: The present invention relates generally to providing a system and method for monitoring devices relative to a user defined geographic area using an enablement platform for building web sites and web applications using data storage, management and publication capabilities of hosted web services. The system and method for monitoring M2M devices relative to a user defined geographic area (geofence) are built on existing AerCloud concepts by allowing user to define location attributes and by using the user defined location attributes to configure and evaluate geofence parameters and issue alerts if the devices are performing outside the geofence parameters.

Abstract: A method and an apparatus for transmitting a reception acknowledgement for hybrid automatic repeat request (HARQ) of a user equipment (UE). The reception acknowledgement may be an ACK signal or a NACK signal for physical downlink shared channels (PDSCHs). The reception acknowledgement is transmitted on a physical uplink control channel (PUCCH), and the UE selects a resource of the PUCCH based on a number of the received physical downlink control channels. That is, the UE selects a first PUCCH resource for a number of the received PDCCHs being less than a pre-defined number, and the UE selects a second PUCCH resource for a number of the received PDCCHs being equal to or greater than the pre-defined number.

Abstract: An optical fiber sensor includes: a transmitting unit configured to output two lights into an optical fiber, wavelengths of the two lights being different from each other at a specific time, and at least one of the wavelengths of the two lights varying with time; and a measuring unit configured to receive back-scattered light output from the optical fiber and detect a temporal variation of an optical phase at an arbitrary interval in a longitudinal direction of the optical fiber by measuring measure an interference state of the two lights.

Abstract: A computer-implemented method and system for providing a geo-fence are disclosed. The method for providing a geo-fence includes collecting and storing route information for one or more mobile devices; analyzing the route information for the one or more mobile devices to determine optimum route; and creating the geo-fence around a route to be monitored based on the route information for the optimum route. The system for providing a geo-fence includes one or more mobile devices, a user interface and a data processing system. The data processing system includes a learning database, wherein the learning database collects and stores route information for the one or more mobile device; and an analytics engine, wherein the analytics engine analyzes the route information to determine optimum route, and create the geo-fence around a route to be monitored based on the route information for the optimum route.

Abstract: A method for authorizing the use of a motor vehicle, having a first and second antenna spatially remote from one another, includes emitting, from the first vehicle antenna, a first signal that is received by an identification transmitter antenna of a portable identification transmitter. The method includes establishing at least one spatial component of a first electromagnetic field of the received first signal using an angle-resolving magnetic field sensor, emitting, by the second vehicle antenna, a second signal that is received by the portable identification transmitter antenna, and establishing at least one spatial component of the second electromagnetic field of the received second signal using the angle-resolving magnetic field sensor.

Abstract: A method for authorizing the use of a motor vehicle having a first and second antenna spatially remote from one another, includes emitting, from the first vehicle antenna, a first signal that is received by an identification transmitter antenna of a portable identification transmitter. The method also includes establishing at least one spatial component of a first electromagnetic field of the received first signal using an angle-resolving magnetic field sensor, emitting, by the second vehicle antenna, a second signal that is received by the portable identification transmitter antenna, and establishing at least one spatial component of the second electromagnetic field of the received second signal using the angle-resolving magnetic field sensor.

Abstract: An electronic device includes: a microphone; a speaker; a touchscreen display; a communication circuit; at least one processor; and a memory storing instructions that, when executed, cause the at least one processor to: receive a first user input; identify a service provider and a detailed service; select a first menu corresponding to the detailed service from menu information; attempt to connect a call to the service provider; when the call to the service provider is connected, transmit one or more responses until reaching a step corresponding to the first menu; in response to reaching the first menu, determine whether an attendant is connected; in response to completion of connection to the attendant, output a notification indicating that the connection to the attendant has been completed; and in response to reception of a second user input for the output notification, display a screen for a call with the service provider.

Abstract: A method of generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system supporting carrier aggregation, the method including receiving, by the UE from a base station (BS), a plurality of codewords through a plurality of downlink frequency bands corresponding to a plurality of downlink carriers, wherein each of the plurality of downlink frequency bands operates in a 1-codeword mode or a 2-codeword mode, and a number of supported codewords according to the 1-codeword mode or the 2-codeword mode is independently configured for each of the downlink frequency bands, determining, by the UE, a total number of ACK/NACK bits, wherein the total number of ACK/NACK bits is determined based on a total number of the plurality of downlink carriers and the number of supported codewords according to the 1-codeword mode or the 2-codeword mode and generating, by the UE, a sequence of the ACK/NACK bits according to the total number of the ACK/NACK bits.

Abstract: A consumer transmits a set of system updates corresponding to an initial set of events retrieved from an event stream. The consumer determines that acknowledgement of the transmission of the initial set of events has not been received. The consumer executes another retrieval operation to retrieve events from the event stream which results in retrieving an updated set of events. The updated set of events includes the initial set of events and one or more additional events. The consumer trims the updated set of events to remove the one or more additional events and obtains the initial set of events. The consumer re-determines and re-transmits the system updates corresponding to the initial set of events that were obtained by trimming the updated set of events.

Abstract: A distributed antenna system is provided that frequency shifts the output of one or more microcells to a 60 GHz or higher frequency range for transmission to a set of distributed antennas. The cellular band outputs of these microcell base station devices are used to modulate a 60 GHz (or higher) carrier wave, yielding a group of subcarriers on the 60 GHz carrier wave. This group will then be transmitted in the air via analog microwave RF unit, after which it can be repeated or radiated to the surrounding area. The repeaters amplify the signal and resend it on the air again toward the next repeater. In places where a microcell is required, the 60 GHz signal is shifted in frequency back to its original frequency (e.g., the 1.9 GHz cellular band) and radiated locally to nearby mobile devices.

Abstract: The present invention relates generally to providing a system and method for monitoring devices relative to a user defined geographic area using an enablement platform for building web sites and web applications using data storage, management and publication capabilities of hosted web services. The system and method for monitoring M2M devices relative to a user defined geographic area (geofence) are built on existing AerCloud concepts by allowing user to define location attributes and by using the user defined location attributes to configure and evaluate geofence parameters and issue alerts if the devices are performing outside the geofence parameters.

Abstract: A voltage controlled optical directional coupler (VCODC) having a coupling ratio that can be adjusted to any desired value through voltage tuning is disclosed. The VCODC may include a first optical hybrid coupler and a second optical hybrid coupler, which may be coupled with each other via one or more voltage controlled optical elements having a variable transparency depending on a voltage applied to the one or more voltage controlled optical elements. The VCODC may be configured to divert a portion of optical power received to a trunk input of the VCODC to a tap output of the VCODC based on the variable coupling ratio of the VCODC, which may be dependent on the variable transparency of the one or more voltage controlled optical elements.

Abstract: A method for generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information at a user equipment in a wireless communication system. The method according to one embodiment includes receiving a plurality of transport blocks through a plurality of downlink carriers from a base station. Each of the plurality of downlink carriers carries two or more transport blocks. The method according to the embodiment further includes generating the ACK/NACK information by concatenating ACK/NACK bits corresponding to the plurality of transport blocks. The ACK/NACK bits are concatenated using an index order of the downlink carriers and an index order of the two or more transport blocks associated with each of the downlink carriers. The index order of the downlink carriers is used firstly.

Abstract: An example method of facilitating communication between a mobile device positioned within an internal network and a target peer includes intercepting, at a proxy executing on a mobile device, a communication to initiate a real-time communication connection with a target peer. The mobile device is coupled to a cellular network, and the internal network is separated from one or more external networks by network address translation (NAT). The example method also includes determining whether the target peer is reachable via the cellular network. The example method further includes when it is determined that the target peer is reachable via the cellular network, sending over the cellular network to the target peer a request to communicate in a first protocol.

Abstract: A method and apparatus are described for a User Equipment (UE) to transmit in a control channel ACKnowledgement signals associated with a Hybrid Automatic Repeat reQuest process (HARQ-ACK signals) in response to receiving Transport Blocks (TBs) transmitted from a base station. The UE conveys the HARQ-ACK information by selecting one resource from multiple resources in the control channel and by selecting a constellation point of the modulation scheme for the HARQ-ACK signal. Transmission diversity is supported using different control channel resources that are already available to the UE without configuring additional resources. Design principles are described to optimally map the HARQ-ACK information to control channel resources and modulation constellation points for a Time Division Duplex (TDD) system and for a Frequency Division Duplex (FDD) system.

Abstract: Provided is a method for transmitting an acknowledgment through a base station in a multi-carrier system. The method for transmitting the acknowledgment through the base station in the multi-carrier system comprises the steps of receiving a plurality of uplink transmission blocks through at least one uplink carrier; determining a downlink channel for transmitting a plurality of ACK/NACK signals corresponding to the transmission blocks on the basis of the at least one uplink carrier; and transmitting the ACK/NACK signals on the determined downlink channel.

Abstract: A method and apparatus for improved downlink data transport with hybrid automatic repeat request (HARQ) feedback and a measurement gap are provided. A user equipment (UE) receives from a network a transmission grant for downlink data on a first control channel. The UE receives the data from the network via a transport channel. In response to the received data, the UE determines whether transmission of an acknowledgement message falls in a measurement gap. Upon determining that the transmission of the acknowledgement message by the UE falls in the measurement gap, and prior to receiving from the network a retransmission grant for the data on the first control channel, the UE sends the acknowledgement message on a second control channel in a sub-frame following the measurement gap. The first control channel is associated with the second control channel.

Abstract: Methods and systems for detecting a preamble of a data packet in wireless communication systems is provided. To determine a preamble from a received signal, which may include a noise-altered preamble bit sequence, linear feedback shift registers (LFSRs) can be used to generate a count of the received preamble, and the count is compared to pre-generated scores to identify a match. Example methods include for each of a number of different preamble orientations of a preamble, generating a count value based on a comparison of bits of the preamble with a random bit sequence to produce a sequence of count values, and comparing the sequence of count values with m sequences of count values. A sequence of count values is identified that includes a maximum number of matching elements, and the received preamble is determined to be one of the m preambles corresponding to the identified sequence.

Abstract: An embodiment of the present invention discloses a spectrum division method, including: obtaining service distribution in a first area and service distribution in a second area of each base station among all base stations covered by a pre-specified network within a preset period; formulating i spectrum division schemes for the first area and second area of the network and h second area spectrum allocation schemes under each spectrum division scheme according to the obtained total service distribution in the first area of the network and total service distribution in the second area of the network; selecting an optimal spectrum division scheme and an optimal second area spectrum allocation scheme of the optimal spectrum division scheme, and sending the optimal spectrum division scheme and the optimal second area spectrum allocation scheme to the base station.

Abstract: Systems and methods for upgrading QoS levels of older transactions based on the presence of higher level QoS transactions in a given queue. A counter may be maintained to track the number of transactions in a queue that are assigned a corresponding QoS level. Each separate QoS level can have a corresponding counter. When a transaction is received by the queue, the counter corresponding to the QoS level of the transaction is incremented. When a transaction leaves the queue, the transaction is upgraded to the highest QoS level with a non-zero counter. Also, when the transaction leaves the queue, the counter corresponding to the original QoS level of the transaction is decremented.

Abstract: A transmission system for transmitting data over a channel in the form of a digital signal comprising bits of data, the system comprising an encoder for encoding the data prior to transmission, the encoder producing coding in the form of an overhead, and a decoder for decoding the data after transmission, characterised in that a first portion only of the data is encoded, the second portion remaining uncoded, the system further comprising a partitioner for partitioning the overhead from the uncoded data portion of the signal, after the first portion data has been encoded.

Abstract: A new coded continuous phase modulation (CPM) scheme is proposed to enhance physical layer performance of the current DVB-RCS standard for a satellite communication system. The proposed CPM scheme uses a phase pulse design and combination of modulation parameters to shape the power spectrum of CPM signal in order to improve resilience to adjacent channel interference (ACI). Additionally, it uses a low complexity binary convolutional codes and S-random bit interleaving. Phase response using the proposed CPM scheme is a weighted average of the conventional rectangular and raised-cosine responses and provides optimum response to minimize frame error rate for a given data rate.

Abstract: Systems and methods for selecting modulation and encoding schemes for transmitting control information on a wireless channel. For example, a base station or access terminal may select a modulation and coding scheme for transmitting radio link or media access control messages on a radio frequency channel based on a link quality of the radio frequency channel. The radio frequency channel may be an enhanced general packet radio service control channel. Other aspects, embodiments, and features are also claimed and described.

Abstract: A method for allocating downlink transmission power of coordinated transmission devices in coordinated multi-point transmission system includes the coordinated transmission devices receiving feedback of channel state information of sub-channels occupied by a terminal from the terminal. The channel state information includes channel phase information and channel amplitude information. Each of the coordinated transmission devices adjusts phases of their sending signals over its sub-channels respectively so as to make phase difference of the sending signals, which are received by the terminal from the coordinated transmission devices via a same sub-channel, to be minimal. Each of the coordinated transmission devices determines its power allocation proportions for the sub-channels on the basis of feedback of channel amplitude information from the terminal and the adjusted phases of the sending signals.

Abstract: A receiver is provided that is configured to estimate the symbol constellation of a signal modulated using a quaternary symbol constellation where data is transmitted to two mobile stations multiplexed on a shared channel comprising two branches, where the branches correspond to the real and imaginary parts of one complex-valued baseband signal. The receiver is configured to demodulate the modulated signal using the training sequences from both sub-channels.

Abstract: Methods and systems for detecting a preamble of a data packet in wireless communication systems is provided. To determine a preamble from a received signal, which may include a noise-altered preamble bit sequence, linear feedback shift registers (LFSRs) can be used to generate a count of the received preamble, and the count is compared to pre-generated scores to identify a match. Example methods include for each of a number of different preamble orientations of a preamble, generating a count value based on a comparison of bits of the preamble with a random bit sequence to produce a sequence of count values, and comparing the sequence of count values with m sequences of count values. A sequence of count values is identified that includes a maximum number of matching elements, and the received preamble is determined to be one of the m preambles corresponding to the identified sequence.

Abstract: The present invention relates to a source antenna switching scheme for a non-orthogonal protocol; and more particularly, to a source antenna switching scheme for a non-orthogonal protocol, which transmits a signal of a source node to a destination node through a relay node. The present invention provides a source antenna switching scheme for a non-orthogonal decode-and-forward protocol that can acquire a greater diversity than the conventional NDF protocol. In other words, the present invention provides a source antenna switching scheme for a non-orthogonal decode-and-forward protocol that can increase a diversity order by adding a reasonable priced antenna instead of expensive hardware such as an RF chain when there are a plurality of antenna in the RF chain.

Abstract: A pilot signal is transmitted with a predetermined frequency band and a data signal is transmitted with a partial band of the frequency band, and the pilot signal and the data signal to be transmitted with at least the partial band, are controlled its waveform to have the same waveforms in a frequency domain. Thus, in the case of controlling waveforms of the pilot signal and the data signal which have different occupied bands, it is possible to, in a portion of the occupied band for the data signal, avoid the mapping of a low-quality pilot signal or the like, enhance the data signal demodulation capability and improve the data signal reception characteristic while suppressing PAPR.

Abstract: The invention provides a transmitter comprising two (or more) phase locked loops controlling respective oscillators, and implementing different phase modulation. Multiple phases are derived from the respective oscillators, and an edge rotator forms an output signal from a combination of the phases. The oscillators can operate at different frequencies, neither of which is an integer multiple of the other, whereas the output signals of the multiplexers of the first and second phase locked loops are closer in frequency and can be the same. This reduces the problem of pulling, with a circuit that can be implemented with low power and area and with the versatility of being digitally intensive.

Abstract: A method and apparatus for providing adaptive bearer configuration for MBMS delivery is disclosed. A first aspect of the present disclosure is a method of operating a wireless infrastructure entity (103) wherein a common radio resource (303) is allocated for receiving a response from at least one mobile station (109). A request message, similar to a request for counting, is broadcast to all mobile stations (109) within a coverage area (105). If at least one mobile station (109) responds to the request, PTM transmission mode will be used for MBMS delivery within the given coverage area (105). If more than one mobile station (109) within the coverage area (105) responds to the request, then all the responses will be over the common radio resource (303). The total number of responses to the request message may be limited by providing a probability factor within the request message.

Abstract: A transmission apparatus couples a first phase modulation signal for first input data and a second phase modulation signal for second input data according to a first coupling method and transmits the coupled signal, and a reception apparatus receives the coupled signal. The reception apparatus derives a signal in which a first phase modulation signal and a second phase modulation signal are coupled according to a second coupling method from a received signal and separates the first phase modulation signal and the second phase modulation signal from the received signal based on the received signal and the derived signal. Furthermore, the reception apparatus obtains the first input data by demodulating the first phase modulation signal and obtains the second input data by demodulating the second phase modulation signal.

Abstract: A system and method of uplink acknowledgement transmission. The wireless network implements carrier aggregation wherein a subscriber station may be allocated downlink resource blocks distributed over multiple downlink carriers. The subscriber station receives control channel elements from at least one base station on at least two downlink carriers. The subscriber station derives uplink acknowledgement signal cyclic shift resource indices for respective carriers from functions of the index of the control channel elements that have carried a downlink grant the respective downlink carrier. The subscriber station transmits N number of ACK/NACK symbols in at least one physical uplink channel resource.

Abstract: Techniques are disclosed for managing a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards, switch modules and a management controller. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards and the switch modules may be operatively connected to the midplane. The switch modules may be configured to switch network traffic for the one or more server cards. The management controller may be configured to manage the switch modules via the fabric interconnect.

Abstract: A wall control interface for power management includes a transmitting circuit that generates a switching signal to control a switch and achieve a phase modulation to a power line signal in response to a transmitting-data. A receiving circuit is coupled to detect the phase of the power line signal for generating a data signal and a receiving-data in response to the phase of the power line signal. The receiving circuit further generates a control signal to control power of a load in accordance with the data signal or the receiving-data. The phase modulation is achieved by controlling a turn-on angle of the power line signal. The switch remains in a turn-on state during the normal condition, which achieves good power and low current harmonic. The phase modulation is only performed during the communication of the power management.

Abstract: A transmitting apparatus includes an OFDM modulator that generates a first modulation symbol by modulating a first information signal using a first modulation scheme, a signal point of the first modulated information signal being at a first position in an in-phase quadrature-phase plane. A second modulation symbol by modulating a second information signal using the first modulation scheme, and by changing a second position at which a signal point of the modulated second information signal is arranged to a third position in the in-phase quadrature-phase plane, and an OFDM modulation signal including the first modulation symbol and the second modulation symbol, wherein the OFDM modulation signal comprises a plurality of subcarriers.

Abstract: Phase of an output signal is based on comparison of an oscillating signal with an adjustable threshold. Here, adjustment of the threshold results in a corresponding adjustment of the phase of the output signal. For example, the adjustable threshold may comprise an adjustable bias signal for a transistor circuit whereby the oscillating signal is provided as an input to the transistor circuit and the output of the transistor circuit provides the output signal. In some aspects these phase adjustment techniques may be employed to provide one or more tunable multiphase clocks.

Abstract: Multiple applications sharing common resources are arbitrated such that failures resulting from unavailable resources can be avoided. Whenever an application (e.g., a data application) desires to perform an operation (e.g., PPP resynchronization) that requires the use of a shared resource (e.g., an RF receiver), a determination is made as to whether that resource is available. The operation may be delayed while the resource is unavailable. The application may be assigned the resource if it is available or becomes available and may then start the operation. The resource is locked while the operation is pending to avoid assignment to another application. The resource arbitration allows applications to complete their operations without encountering failures due to other applications taking over the resources.