Abstract: An apparatus to estimate a frequency offset in wireless networks is provided. The apparatus comprises: radio frequency (RF) circuitry to down-convert a signal from a base station to generate in-phase and quadrature (IQ) components, wherein the signal includes one or more repeated bursts; and a frequency offset estimator operatively coupled to the RF circuitry, the frequency offset estimator to estimate a frequency offset based on the IQ components and an iterative calculation of phase differences between different sets of bursts of the one or more repeated bursts.

Abstract: A receiving device, user equipment, communication system and a method for processing synchronization information are provided. The receiving device comprises a synchronization information processing apparatus configured to combine synchronization information of a plurality of frequency channels based on time and frequency.

Abstract: An apparatus to estimate a frequency offset in wireless networks is provided. The apparatus comprises: radio frequency (RF) circuitry to down-convert a signal from a base station to generate in-phase and quadrature (IQ) components, wherein the signal includes one or more repeated bursts; and a frequency offset estimator operatively coupled to the RF circuitry, the frequency offset estimator to estimate a frequency offset based on the IQ components and an iterative calculation of phase differences between different sets of bursts of the one or more repeated bursts.

Abstract: An automatic frequency control device, a method for automatic frequency control, a receiver, a mobile station and a non-transitory computer-readable digital storage medium are provided. The automatic frequency control device may include a quality calculation unit to calculate quality of a received signal, a state machine controller to generate a control signal based on the calculated quality of the received signal, and a filter to filter an estimated frequency offset of the received signal based on the control signal.

Abstract: A network-capable computer includes an internet jack, a detecting module, a storage module, and a network attribute setting module. The detecting module detects a connected network cable enables the computer to connect successfully to a network. The storage module stores IP addresses of a plurality of network cables. As stored data, the IP addresses includes an external static IP address and an IP address of a local area network. The network attribute setting module sets the static IP address or a dynamically accessed IP address within the local area network as a network attribute until the IP address of the computer connects successfully. A network attribute setting method is also provided.

Abstract: A device and method for estimating a frequency offset of a received signal is provided. The device comprises: a plurality of phase estimation units, each of the plurality of phase estimation units adapted for receiving one of a plurality of data parts of the received signal and estimating a phase caused by the frequency offset from the received data part, wherein the plurality of data parts comprises payload data and known symbols in the received signal. A method for estimating the frequency offset is also provided; and a frequency offset estimation unit for estimating the frequency offset from a plurality of phases estimated by the plurality of phase estimation units.

Abstract: A receiving device, user equipment, communication system and a method for processing synchronization information are provided. The receiving device comprises a synchronization information processing apparatus configured to combine synchronization information of a plurality of frequency channels based on time and frequency.

Abstract: An automatic frequency control device, a method for automatic frequency control, a receiver, a mobile station and a non-transitory computer-readable digital storage medium are provided. The automatic frequency control device may include a quality calculation unit to calculate quality of a received signal, a state machine controller to generate a control signal based on the calculated quality of the received signal, and a filter to filter an estimated frequency offset of the received signal based on the control signal.

Abstract: A device and method for estimating a frequency offset of a received signal is provided. The device comprises: a plurality of phase estimation units, each of the plurality of phase estimation units adapted for receiving one of a plurality of data parts of the received signal and estimating a phase caused by the frequency offset from the received data part, wherein the plurality of data parts comprises payload data and known symbols in the received signal. A method for estimating the frequency offset is also provided; and a frequency offset estimation unit for estimating the frequency offset from a plurality of phases estimated by the plurality of phase estimation units.

Abstract: A frequency offset estimation and correction method in an orthogonal frequency division multiplexing (OFDM) system is disclosed in present invention, including: obtaining a pilot frequency domain channel estimation value of a target user, and smoothing the channel estimation value in frequency domain; obtaining the link quality state of a receiver; adopting a history smoothing algorithm or a multi-branch attempt algorithm to perform frequency offset estimation and frequency offset compensation, performing frequency domain demodulation for the data for which frequency offset compensation has been performed, and outputting a link quality state parameter; and updating the link quality state of the receiver according to the link quality state parameter, determining the output value of this frequency offset estimation and outputting a history frequency offset value required by next frequency offset estimation according to the determined output value of this frequency offset estimation.

Abstract: A frequency offset estimation and correction method in an orthogonal frequency division multiplexing (OFDM) system is disclosed in present invention, including: obtaining a pilot frequency domain channel estimation value of a target user, and smoothing the channel estimation value in frequency domain; obtaining the link quality state of a receiver; adopting a history smoothing algorithm or a multi-branch attempt algorithm to perform frequency offset estimation and frequency offset compensation, performing frequency domain demodulation for the data for which frequency offset compensation has been performed, and outputting a link quality state parameter; and updating the link quality state of the receiver according to the link quality state parameter, determining the output value of this frequency offset estimation and outputting a history frequency offset value required by next frequency offset estimation according to the determined output value of this frequency offset estimation.