Apparatus and its method for deciding user code according to number of connecting user and, apparatus and its method for generating user code using the same in quasi-synchronous cdma system

1. Technical Field of the invention defined in the claims The present invention, quasi-synchronous code division multiple access system according to the user at will sign determination apparatus and method, and generates a user code using the same based on scrambling / spreading apparatus and method according to the connected user. 2. The invention attempts to solve the technical challenges The present invention, quasi-synchronous code division multiple users sign on the base station side of the multi-access system after dividing the code group of (2), to determine the specific code group according to present access users and transmits to the terminal, the terminal side, the the number of users connected at the quasi-synchronous CDMA system, for generating a user code and to minimize the interference component between the user code in the synchronization error range by using a scrambling code pattern which minimizes a correlation characteristic between a user code according to the determined code group to provide the user sign determination apparatus and method, and generates a user code using the same based on scrambling / spreading apparatus and method that is the object of the. 3. Resolution of the subject matter of the invention, The present invention, quasi-synchronous code division multiple access according to a user code determining device according to the access number of the user from the system, transmitted from the terminal connected to the current counter number of users according to the user access / termination request signal, the user can counting means; According to the user access request signal is received from the terminal of the connected user can check the value of counting the number of stages and the corresponding decision to the user code group, the access user counting means based on the user access termination request signal is received from the terminal in value and the termination request check the user's code group to determine selection / conversion code groups for determining the user to switch the code group of the currently connected user device; And including a code group selection / conversion signal transmitting means for transmitting the code group selection / conversion signal according to the control of the code group selection / conversion determination means to the terminal. 4. An important use of the invention, The invention yiyongdoem such quasi-synchronous CDMA system. Quasi-synchronous CDMA system, the user code generation, code group selection, orthogonality, and scrambling