Abstract: A method of canceling sinusoidal interference from a received signal includes identifying a block of signal-free data containing sinusoidal interference. A model of the significant interference in the selected data block is constructed, scaled to subsequent data blocks and used to remove sinusoidal interference signals from the overall received signal.

Abstract: A method for generating a codebook and a method and an apparatus for data transmission are provided. The method includes: receiving a label of a codeword sent by a User Equipment (UE); selecting the codeword identified by the label from the codebook for eight-antenna; and coding data to be sent by using the codeword. The codebook for eight-antenna includes at least one rank-8 codeword for eight-antenna. The rank-8 codeword for eight-antenna is generated by multiplying an inverse matrix of a rotation matrix for eight-antenna with an eight-dimensional matrix formed by rank-4 codewords for four-antenna; or generated by extending rank-4 codewords for eight-antenna, where the rank-4 codeword for eight-antenna is generated according to codewords for four-antenna. Therefore, the codeword in the codebook for eight-antenna is applicable to scenarios including dual-polarization strong correlation, dual-polarization weak correlation, single-polarization strong correlation, and single-polarization weak correlation, etc.

Abstract: Methods and communication systems are presented, in which impulse noise is monitored on a communication channel, and an interleaver depth is adjusted according to the monitored impulse noise without interrupting communication service.

Abstract: A communications device for generating a Zadoff-Chu sequence includes a storage unit storing real and imaginary part values of exp{?j·(2?/N)·(m/2)} for the Zadoff-Chu sequence of the sequence length N, wherein m is an integer (0?m<(N+1)/2); a parameter acquisition unit acquiring a sequence number u, data number k, cyclic shift amount ? and cyclic shift number Ncs; a phase position detecting unit detecting a phase position of the Zadoff-Chu sequence with acquired parameters; and a sequence determination unit determining m to read a real and an imaginary part value in the storage unit based on the phase position and determining a plus/minus sign of each of the real and the imaginary part value. The device further includes a sequence acquisition unit acquiring the Zadoff-Chu sequence by using the real and the imaginary part values according to m determined by the sequence determination unit and the signs thereof determined.