63results about How to "Improve reception accuracy" patented technology

A signal processing method and device. The method comprises: when there is data to be sent, determining, by a user equipment, a generation manner of a pseudo-random sequence according to a type of the data to be sent; when the data to be sent is device-to-device communication data, conducting, by the user equipment, assignment on an initial value of the generated pseudo-random sequence according to a pre-defined rule, and generating the pseudo-random sequence according to the initial value; generating one or more of a scrambling sequence, a cyclic shift sequence or a pilot sequence according to the pseudo-random sequence; and processing the data to be sent using one or more of the scrambling sequence, the cyclic shift sequence or the pilot sequence. The embodiments of the present invention enable a UE to generate a pseudo-random sequence by using a pre-defined initial value type as an initialization parameter, to conduct scrambling, cyclic shift, pilot insertion and other processing on a signal to be transmitted, thereby playing roles of randomizing signal interference, enhancing the anti-interference capability, and improving the signal receiving accuracy rate and the resource utilization rate.

The RSSI circuit of the present invention includes: an IF amplifier section, which includes multiple stages of serially connected differential amplifiers for amplifying, with use of a current source IA provided as a power source for amplification, an IF signal corresponding to a received signal; an RSSI amplifier section for converting into current a voltage amplitude of an absolute value signal outputted from the differential amplifiers of the IF amplifier section, using a current source IB provided as a power source for conversion, and adding and outputting the converted current; and a current voltage conversion circuit for converting into voltage the output current from the RSSI amplifier section, and outputting the converted voltage as a measurement voltage value. The RSSI amplifier section is set so that a current value of the RSSI amplifier section is inversely proportional to absolute temperature. With the configuration, it is possible to realize an RSSI circuit, a received signal strength detection circuit and a wireless receiver, which are able to stabilize a strength measurement of a received signal relative to a change in temperature and to increase communication characteristics.

A method for receiving an optical orthogonal frequency-division multiplexing (OFDM) signal and a receiver thereof are applicable to an optical OFDM system. The receiving method includes the following steps. An optical signal is converted into a digital signal. A symbol boundary of the digital signal is estimated. A guard interval of the digital signal is removed according to the symbol boundary, so as to generate an electrical signal. The electrical signal is converted into a plurality of frequency domain sub-carriers in a fast Fourier transform (FFT) manner. A timing offset is estimated with pilot carriers and frequency domain sub-carriers corresponding to the same symbol period. The estimated symbol boundary is compensated with the timing offset. Each frequency domain sub-carrier includes a plurality of pilot carrier signals. Through the receiving method, the timing offset arisen from chromatic dispersion of an optical fiber is effectively estimated and adopted for compensation.

To improve accuracy for verifying reception in the data transmission utilizing the common channel. A radio communication apparatus for transmitting the data to the transmitting destination apparatus selected from a plurality of transmitting destination apparatuses using the shared channel, comprises a control unit for controlling data transmission and a path search unit for identifying the transmitting destination apparatus as the object of the path search in accordance with control of data transmission.

The invention relates to a method and device for transferring signal data from a sender to one or more receivers. The invention includes receiving a quantity as a function of time, arranging the quantity into a first polynomial to obtain values for polynomial coefficients of a first continuous signal, and transferring the values of the polynomial coefficients of the first continuous signal via a first data transfer link to one or more receivers.

Provided are an information determination method, a signal receiving method and apparatus, the method comprising: determining quasi co-located reference signal information of an aperiodic measurement reference signal resource according to first information, the first information comprising at least one of the following: a relationship between a first threshold and a time interval, whether an intersection is null, and whether the intersection is null; the time unit offset is a preset rule; the time interval is a time interval between the control information for scheduling the aperiodic measurement reference signal resource and the aperiodic measurement reference signal resource; the intersection is an intersection between a time domain symbol set where the aperiodic measurement reference signal resource is located and a time domain symbol set where the target channel or the target signal is located; the time unit offset is the time unit offset associated with a non-periodic measurement reference signal resource set where the non-periodic measurement reference signal resources are located.

The invention relates to a combiner, a combing device and a signal combing system, wherein the combiner comprises a first duplexer, a second duplexer and a bridge. The first duplexer is provided with an output terminal connected with two base stations respectively, and is used for receiving primary upstream signals and outputting the primary upstream signals into the two base stations respectively; the second duplexer is provided with an output terminal connected with two base stations respectively, and is used for receiving branch upstream signals and outputting the branch upstream signals into the two base stations respectively; the bridge is provided with an input terminal connected with the two base stations respectively, and an output terminal connected with an antenna, and is used for receiving downstream signals from the two base stations and transmitting to the antenna. Compared with the prior art, a classification receiving manner is adopted for upstream signals, that is, two paths of upstream signals are amplified at the same time, then uploaded to the base stations, and analyzed by the base stations, so that the receiving accuracy is improved.