Patent ID: 8259674

Claim:
A mobile communication method of allowing a mobile station and a base station to communicate based on an HSDPA communication mode, comprising: when said mobile station moves from one base station into an area of other base station, transmitting a dummy signal for notifying base station switching from said other base station as a moving destination to said mobile station prior to transmission of actual information; in response to reception of said dummy signal, decoding an HS-SCCH signal up to part 2 information by said mobile station; examining CRC included in said part 2 information; and when said CRC is normal, switching said base station, wherein said dummy signal is included in part 1 information of said HS-SCCH signal, and wherein said dummy signal functions as a signal for instructing on switching by the inclusion, in said part 1 information of said HS-SCCH signal, any of eight bit strings which are 7-bit bit strings indicative of a channelisation code set, ┌1110000┘, ┌1110001┘, ┌1110010┘, ┌1110011┘, ┌1110100┘, ┌1110101┘, ┌1110110┘, and ┌1110111┘.