METHOD FOR TRANSMITTING PILOT CHANNELS, AND A CELLULAR RADIO SYSTEM

摘要

The invention relates to a cellular radio system and a method for transmitting pilot channels in a cellular radio network, which comprises in each cell at least one base station (550) communicating with mobile stations (552, 554) located within its area, which base stations transmit a data signal in the downlink direction by using transmission directions changing in time and which transmit information about the system to the mobile stations on control channels. In order to enable as efficient use of the pilot channels as possible, the base stations transmit at least one first pilot channel with a predetermined radiation pattern (560), which determines the cell coverage area, and second pilot channels on transmission directions (556, 558) changing in time.