5G NR PBCH PBCH PBCH SIGNAL ACCUMULATION METHOD AND PBCH DECODER FOR IMPROVING PERFORMANCE OF 5G NR RECEIVER

摘要

The present invention is a method of accumulating and decoding a PBCH signal received from a 5G NR receiver, comprising: generating an inversion vector to invalidate at least one bit of a System Frame Number (SFN) included in the received PBCH signal; Modulo addition of the generated inversion vector to the received PBCH signal to accumulate over at least one frame; Decoding the accumulated PBCH signal; And confirming the validity of the decoded PBCH and restoring the SFN. According to the present invention, by providing a method of generating an inverted vector that “invalidates” SFN information changed for each frame in a PBCH signal using the linearity characteristic of a polar code, and modulating the received PBCH signal to accumulate the time, thereby providing time Since the SFN information changed with respect to always has the same value, the PBCH signal can be accumulated over time. In addition, by providing a PBCH decoder that recovers invalid SFN information again after detection of a signal, the SNR of a signal received from a 5G NR receiver is improved by accumulating the PBCH signal, thereby improving the reception performance at the cell edge. .