CHANNEL CODING METHOD AND APPARATUS

    公开(公告)号:US20250150097A1

    公开(公告)日:2025-05-08

    申请号:US19017023

    申请日:2025-01-10

    Abstract: This application provides a channel coding method and apparatus, including: A terminal device generates a first bit sequence, and determines a second bit sequence based on the first bit sequence, where the second bit sequence includes M bits, any bit in the last N bits in the second bit sequence has a same value as a bit that is in the first N bits in the first bit sequence and that is in one-to-one correspondence with the bit, M and N are positive integers, and M is greater than N; performs convolutional coding on the second bit sequence based on a convolutional encoder, to obtain a third bit sequence, where an initial value of a shift register of the convolutional encoder is equal to values of the last N bits in the second bit sequence, and the convolutional encoder includes N shift registers; and sends the third bit sequence.

    SIGNAL TRANSMISSION METHOD AND APPARATUS
    3.
    发明公开

    公开(公告)号:US20240223428A1

    公开(公告)日:2024-07-04

    申请号:US18604700

    申请日:2024-03-14

    CPC classification number: H04L27/26362 H04L27/2605 H04L27/36

    Abstract: This application provides a signal transmission method and an apparatus, to reduce an envelope ripple of a transmission signal. The method includes: A base station obtains a first bit sequence and maps the first bit sequence to a first modulation symbol sequence, where a value of each modulation symbol in the first modulation symbol sequence belongs to a first constellation point set, the first constellation point set includes K modulation symbols, and each of the K modulation symbols has a different amplitude. The base station sequentially performs a DFT, weighting, and an IFFT on each modulation symbol in the first modulation symbol sequence to obtain a first signal. Based on the foregoing solution, an envelope ripple of the signal generated by the base station in time domain is small. This facilitates demodulation of the transmission signal by a terminal.

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