Joint error correcting method and device

[0023] figure 1 It is a flow chart of a joint error correction method provided by Embodiment 1 of the present invention. This embodiment is applicable to the case where the receiving end corrects the received signal containing an error detection code. This method can be implemented by the joint error correction method provided by the embodiment of the present invention error correction device, which can be implemented in software and / or hardware, and generally can be integrated in a terminal device (such as a mobile phone or tablet, etc.). Such as figure 1 As shown, the method of this embodiment specifically includes:

[0024] S110. Acquire a soft demodulated output signal sequence corresponding to the received signal, and determine at least one position of a signal to be error corrected in the soft demodulated output signal sequence according to the amplitude of the soft demodulated output signal, wherein the received signal Add the error detection code in advance at the s...

[0041] figure 2 It is a flowchart of a joint error correction method provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above embodiments. In this embodiment, the error detection code that matches the error detection code type will be combined technology and the position of the signal to be error corrected, perform joint error correction on the decision signal sequence, specifically optimized as follows: use the decision signal sequence as the current check sequence; use an error check that matches the type of the error detection code The technology performs error detection on the current check sequence; if the error detection result is that the current check sequence contains a code error, then select at least one target error correction position in the at least one signal position to be error corrected; In the current check sequence, correct the signal corresponding to the target error correction position, and use the error c...

[0061] Figure 3a It is a flow chart of a joint error correction method provided by Embodiment 3 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments. In this embodiment, the error detection code pre-added to the received signal at the sending end is specifically optimized as: CRC code; the current check sequence will be performed using an error checking technology that matches the type of the error detection code Error detection, the specific optimization is: combined use of CRC register and CRC error detection mechanism to implement CRC error detection on the current check sequence;

[0062] And, while using the error checking technique matching the type of the error detection code to detect the error of the current check sequence, it also preferably includes: recording the signal at the position of the at least one signal to be error corrected into the Before the CRC register, the historical iteration state of the CRC register, a...