37results about How to "Large data-rate" patented technology

Methods, systems, and computer program products adaptively apply a target noise margin to a DSL loop to establish a DSL data rate on the DSL loop. A method involves receiving performance data associated with a quantity of errors detected over a period of time on the DSL loop and adjusting the target noise margin for the DSL loop based on the performance data. The target noise margin is inversely associated with the DSL data rate that can be established and is adjusted in order to maximize the DSL data rate while minimizing the quantity of errors detected over the period of time. Thus, embodiments of the present invention allow a maximum data rate that can be sustained on a DSL loop without an excessive quantity of errors.

A method of controlling a communication device that is operable to transmit digital data over a plurality of frequency channels. The method includes selecting an initial transmission power and a corresponding data rate for each channel. The method also includes identifying in a first channel a first ratio of a first decrement in transmission power to a first data rate decrement that is greater than a second ratio of a second decrement in transmission power to a second data rate decrement. Then, the initial transmission power allocation of the first channel is reduced by the first decrement. The method also includes reallocating the decremented initial transmission power of the first channel to one or more other channels.

Systems and methods for generating a CDMA signal s(t) comprising N components involves assigning to each of the N components one unique spreading sequence a_n selected from a set of M spreading sequences with M≧N, modulating the symbols d_n of each component on the assigned unique spreading sequence a_n, and combining the N symbols d_n each being spread with its own unique spreading sequence a_n to a CDMA signal s(t). The assigned spreading sequences a_n are selected such that all selected pairs within the set of N spreading sequences are orthogonal or very close to be orthogonal so that cross-correlation components between all spreading sequences a_n are close to zero or zero.

A communications device for communicating data, the communications device including a receiver for receiving signals representing downlink data from a network element of a wireless telecommunications system via a wireless access interface having a logical baseband frame structure, a transmitter for transmitting signals representing uplink data to the network element via the wireless access interface, the logical baseband frame structure being formed from one or more minimum frequency units and one or more time units to form communications resources for allocation by the network element to the communications device, and a controller for controlling the transmitter and the receiver to transmit and to receive signals representing the data to and from the network element using the wireless access interface. The controller is configured in combination with the transmitter and the receiver to receive an indication of frequency resources within a host frequency band.

A radio frequency identification (RFID) interrogator for determining a bandwidth of a backscattering signal to be backscattered by an RFID tag and a method of operating the same are provided. The RFID interrogator senses a predetermined frequency band to determine whether the predetermined frequency band has been occupied and determines a sensing result. The RFID interrogator further controls the bandwidth of the backscattering signal in response to the sensing result.

A system for communicating over a power cable has a power line connected to a power source at one end, a switch mode transformer connected to the power line at the other end for transforming voltage received from the power source through the power line, modulation of the switch mode transformer, and a receiver situated at the power source end and adapted to detect and process ripple signals from the switch mode transformer propagated on the power line.

A communications device includes a receiver, a transmitter, a controller. The receiver is configured to receive signals representing downlink data from an infrastructure equipment of a wireless communications network via a wireless access interface having a logical baseband frame structure. The transmitter is configured to transmit signals representing uplink data to the infrastructure equipment via the wireless access interface, the logical baseband frame structure being formed from one or more minimum frequency units and one or more time units to form communications resources for allocation by the infrastructure equipment to the communications device. The controller is configured to receive a signal providing an indication of one or more frequency resources available within a host frequency band, to combine the one or more frequency resources within the host frequency band in time and/or frequency to form the one or more of the minimum frequency units of the logical baseband frame structure.

A receiver for receiving complex symbols in a radio communication system, in which a symbol arranger collects signals from at least three transmitter antennas through at least one receiver antenna over four time intervals; a channel estimator estimates at least three channel gains from the three transmitter antennas to the receiver antenna; first and second decoders each compute metrics for all possible pairs of symbols using the received signals and channel gains, and detect two symbols having a minimum metric; And a P/S (Parallel to Serial) converter arranges the detected symbols in the right order. Each decoder linearly operates the received signals and channel gains, pre-detects two symbols using threshold detection, and outputs the pre-detected symbols as final symbols if the product of the product of the pre-detected symbols and a constant determined by the channel gains is a minimum.

The disclosure relates to a participant station for a bus system and to a method for increasing the data rate of a bus system. The participant station comprises a device for receiving a message from at least one other participant station of the bus system via the bus system. In the bus system, an exclusive collision-free access of a participant station to a bus line of the bus system is ensured at least temporarily. The participant station also comprises a testing device for testing whether or not the received message is specified for the participant station and an error processing device for processing errors of the received message only when the test carried out by the testing device indicates that the received message is specified for the participant station.

To transmit data packets between a transmitter and a receiver, the data packets are transmitted in coded from as coding units. The received data packets are stored in coded or uncoded form in the receiver inside a memory. The receiver notifies the transmitter of the capacity utilization of the memory.