FIELD: communications engineering. SUBSTANCE: data transmission is proposed to be conducted at varying speed in same frame in which data are contained and information about data transmission speed in bits is conveyed. When using extension with aid of Walsh codes, compression process may be divided into two separate compression operations including buffering between these two operations, Buffering is executed with intermediate characters between compression stages and can be made at maximal user data transmission speed instead of much higher repetition rate of code elements. In this way buffer size can be noticeably reduced in receiver. Proposed advanced method and system enable transfer of speed information in explicit way in frame it describes. EFFECT: minimized amount of data to be buffered in receiver. 20 cl, 5 dwg
