초록 ▼

A CDMA mobile communication scheme capable of increasing a number of sectors while not increasing a number of perch channel spread codes and not jamming the control channel traffic, so as to obtain the capacity increase effect by the use of the sector configuration effectively. At the base station,

A CDMA mobile communication scheme capable of increasing a number of sectors while not increasing a number of perch channel spread codes and not jamming the control channel traffic, so as to obtain the capacity increase effect by the use of the sector configuration effectively. At the base station, a perch channel spread by an identical perch channel spread code assigned to the base station is transmitted from each one of at least two sectors of the base station. Then, upward signals from each mobile station are received at more than one reception sectors, the upward signals received at more than one reception sectors are despread by using an identical uplink spread code, and a maximal ratio combining of despread upward signals is carried out, in a case of carrying out a simultaneous reception at more than one reception sectors. Also, downward signals are spread by using an identical downlink spread code, and spread downward signals are transmitted from more than one transmission sectors to each mobile station, in a case of carrying out a simultaneous transmission from more than one transmission sectors.

대표청구항 ▼

[ What is claimed is:] [1.] A method of mobile communication in a CDMA mobile communication system including base stations connected to a communication network and mobile stations for carrying out communications in a CDMA scheme with the base stations, each base station having a plurality of sectors

[ What is claimed is:] [1.] A method of mobile communication in a CDMA mobile communication system including base stations connected to a communication network and mobile stations for carrying out communications in a CDMA scheme with the base stations, each base station having a plurality of sectors dividing a cell of each base station, the method comprising the steps of:transmitting a perch channel spread by a single perch channel spread code assigned to each base station, from each one of at least two sectors of each base station, such that each mobile station determines its connection target base station according to perch channels received from different base stations;receiving upward signals at more than one reception sectors of each base station from those mobile stations which determined each base station as their connection target base station according to the perch channel transmitted by the transmitting step, despreading the upward signals received at said more than one reception sectors by using an identical uplink spread code, and carrying out a maximal ratio combining of despread upward signals at each base station, in a case of carrying out a simultaneous reception at said more than one reception sectors; andspreading downward signals by using an identical downlink spread code at each base station, and transmitting spread downward signals from more than one transmission sectors of each base station to those mobile stations which determined each base station as their connection target base station according to the perch channel transmitted by the transmitting step, in a case of carrying out a simultaneous transmission from said more than one transmission sectors.