Embodiments of this application disclose example data processing methods and example apparatuses. One example method includes determining, by a first terminal device based on a parameter group, a first sequence including N elements, where the parameter group includes a first parameter, a second parameter, and a cyclic shift value, the first sequence is obtained by performing cyclic shift on a second sequence based on the cyclic shift value, and the second sequence is determined based on the first parameter and the second parameter. The first terminal device can then send a signal to a network device based on the first sequence.