Data transmission method and communication apparatus

A data transmission method, comprising:

• receiving an aggregated physical layer protocol data unit (A-PPDU), wherein the A-PPDU comprises at least two PPDUs belonging to different protocols, the A-PPDU comprises a first sequence, the first sequence comprises N segments of subsequences, any of the N segments of subsequences is obtained by performing phase rotation on a high efficiency-long training field (HE LTF) sequence and/or an extreme high throughput-long training field (EHT LTF) sequence based on a phase rotation parameter corresponding to the HE LTF sequence and/or a phase rotation parameter corresponding to the EHT LTF sequence, N phase rotation parameters corresponding to the N segments of subsequences comprise at least one phase rotation parameter whose value is −1, and N is a positive integer greater than or equal to 2.

A communication apparatus, comprising:

• a non-transitory memory storage comprising instructions that, when executed by
• one or more processors in communication with the memory, cause the communication apparatus to:
• receive an aggregated physical layer protocol data unit (A-PPDU), wherein the A-PPDU comprises at least two physical layer protocol data units (PPDUs) belonging to different protocols, the A-PPDU comprises a first sequence including N segments of subsequences, any of the N segments of subsequences is obtained by performing phase rotation on a high efficiency-long training field (HE LTF) sequence and/or an extreme high throughput-long training field (EHT LTF) sequence based on a phase rotation parameter corresponding to the HE LTF sequence and/or a phase rotation parameter corresponding to the EHT LTF sequence, N phase rotation parameters corresponding to the N segments of subsequences comprise at least one phase rotation parameter whose value is −1, and N is a positive integer greater than or equal to 2.