FIELD: mobile telecommunication systems with multistation access with code separation. SUBSTANCE: invention specifically refers to interface in group spectrum for direct transmission and paging channels. Modulus 16 circuit of interface divides index by number 16, index being chosen from collection of series indices 0-383 corresponding to input data with provision of remainder of division of this index. Bit inverter carries out inversion of bits across output of modulus 16 circuit and determines position of column to record data with conducted interfacing. Circuit of quotient by modulus 16 generates quotient obtained when index is divided by number 16. Code converter has table of lines by which quotient is correspondingly matched with position of line to record it with conducted interfacing to work out position of line corresponding to quotient. Base 24 computer calculates reading clocks and provides value calculated by base 24 and corresponding to chosen line of output data for reading. Base 16 computer provides value calculated by base 24 corresponding to chosen column of output data for reading. Storage has table of interfacing that includes 32 lines and 16 columns. Input data are recorded in chosen position of table in accordance with output of bit inverter and output of code converter and output data are data read from position corresponding to output of base 16 computer and output of base 24 computer. EFFECT: design of updated interface of group spectrum for direct transmission and paging channels with diminished interfacing storage and simplified design. 13 dwg
