Beam shaping method for access to signal channel

The present invention discloses a method of beam shaping for a forward access channel, which increases information on angle of arrival in data frames of a random access channel RACH at an Iub interface in advance and adds shaping parameters in data frames of a forward access channel at the Iub interface and includes procedures below: A. A radio network controllers obtains information on terminal angle of arrival through data frames of an uplink RACH; B. The RNC confirms shaping parameters of data frames of a downlink FACH to a base station Node B according to the information on angle of arrival; C. The Node B shapes a secondary common control physical channel S-CCPCH, which carries the FACH, according to shaping parameters received by the RNC from data frames of the FACH. The present invention realizes beam shaping for the forward access channel, effectively restricts interference of the S-CCPCH of the FACH on other common channels.