Spectrum spreading communication system using single spreading code

A communication method of in a spectrum spreading communication system, comprising the steps of:

• transmitting a radio signal on a same frequency band from each of a plurality of mobile stations, wherein said radio signal is generated from transmission data which is subjected to spectrum spreading using a same code between said plurality of mobile stations and which includes a data and an orthogonal pilot pattern different between said plurality of mobile stations;
• and
• receiving said radio signal by a radio base station to allow communication with said each mobile station based on said radio signal.

A mobile station in a spectrum spreading communication system includes a plurality of said mobile stations and a base station, said mobile station comprising:

• a spreading section which spreads transmission data using a spreading code, wherein said transmission data includes a orthogonal pilot pattern and data, said orthogonal pilot patterns are different between said plurality of mobile stations, and said spreading code is same to said plurality of mobile stations;
• and
• a transmitting section which transmits the spread transmission data on a frequency band to said radio base station as a radio signal, said frequency band is same to said plurality of mobile stations.

A communication method by a mobile station in a spectrum spreading communication system including a radio base station and a plurality of said mobile stations, comprising the steps of:

• spreading transmission data using a same spreading code to said plurality of mobile stations, wherein said transmission data includes a unique orthogonal pilot pattern and data;
• and
• transmitting the spectrum-spread transmission data on a same frequency band to said radio base station as a radio signal such that said mobile station is allowed to communicate with said radio base station based on said radio signal.

A mobile station in a spectrum spreading communication system includes a plurality of said mobile stations and a base station, said mobile station comprising:

• spreading means for spreading transmission data using a same spreading code, wherein said transmission data includes a unique pilot pattern and data;
• and
• transmitting means for transmitting the spread transmission data on a same frequency band to said radio base station as a radio signal.

The mobile station, wherein said mobile station codes a first data and a second data, which is predetermined and used to identify said mobile station, with a predetermined spreading code to produce coded data and transmits the coded data to a radio base station on a predetermined band.