Data transmission method and device, storage medium, and electronic device

A data transmission method, comprising:

• generating M symbols [d0,d1, . . . dM−1];
• transforming the M symbols [d0,d1, . . . dM−1] to generate M symbols [e0,e1, . . . eM−1];
• and
• transmitting [d0,d1, . . . dM−i] and [e0,e1, . . . eM−1], wherein M is more than or equal to 1;
• wherein transforming the M symbols [d0,d1, . . . dM−1] to generate the M symbols [e0,e1, . . . eM−1] comprises one of:
• conjugating and permuting or transposing the M symbols [d0,d1, . . . dM−1] to obtain the M symbols [e0,e1, . . . eM−1];
• conjugating and permuting the M symbols [d0,d1, . . . dM−1] to a negative sequence to obtain the M symbols [e0,e1, . . . eM−1] here e0=d0*, ek=dM−k* and 1≤k≤M−1;
• and
• conjugating and permuting the M symbols [d0,d1, . . . dM−1] to an opposite sequence to obtain the M symbols [e0,e1, . . . eM−1], where e0=d0*, ek=dW−k* and 0≤k≤M−1;
• wherein transmitting [d0,d1, . . . dM−1] and [e0,e1, . . . eM−1] comprises one of:
• multiplying [d0,d1, . . . dM−1] and/or [e0,e1, . . . eM−1] by a specified value, then performing spreading processing by use of a spreading sequence respectively, and then transmitting a processing result;
• performing spreading processing on [d0,d1, . . . dM−1] and [e0,e1, . . . eM−1] by use of a spreading sequence respectively, and then transmitting a processing result;
• and
• performing spreading processing on [d0,d1, . . . dM−1] and [e0,e1, . . . eM−1] by use of a spreading sequence respectively, multiplying symbols obtained after spreading of [d0,d1, . . . dM−1] and/or symbols obtained after spreading of [e0,e1, . . . eM−1] by a specified value, and then transmitting a multiplication result.

A data transmission method, comprising:

• receiving M conjugate symbol pairs, wherein M is more than or equal to 1;
• and
• performing channel estimation by use of the symbol pairs,
• wherein performing the channel estimation by use of the symbol pairs comprises:
• acquiring a first symbol and a second symbol corresponding to two symbols of the symbol pair;
• multiplying the first symbol by the second symbol to obtain a square of a channel estimation value, and executing a root extraction operation on the square of the channel estimation value to obtain the channel estimation value and a negative value of the channel estimation value;
• after channel equalization is performed on the first symbol and the second symbol by use of the channel estimation value respectively, merging two obtained equalization results as a first equalization result;
• after channel equalization is performed on the first symbol and the second symbol by use of the negative value of the channel estimation value respectively, merging two obtained equalization results as a second equalization result;
• and
• performing Cyclic Redundancy Check (CRC) on results obtained by demodulating and decoding the first equalization result and the second equalization result to determine whether the results are correctly decoded or not.