| 摘要 |
PURPOSE: An additive data service providing apparatus of a wireless local loop(WLL) is provided to reduce a load to a system, improve the reliability and reduce power consumption by simultaneously broadcasting to every terminal rather than separately broadcasting one-to-one to each subscriber who desires to receive an additive data service. CONSTITUTION: In a WLL controller(20), a detector(21) searches an additive data service received from a service supply unit(10) which generates various types of additive data services and detects what kind of additive service it is among the various types of additive data services. A service ID number generator(24) receives the signal outputted after being detected by the detector(21) and generates an ID number of a corresponding additive data service. A code selector(25) selects a corresponding password transforming method among various password transformation methods according to the corresponding specific ID number by the additive data service types received from the service ID number generator 24. A coder(22) codes the additive data service received from the detector(21) by the data coding method received from the code selector(25). A packet data multiplexer(23) multiplexes the ID number corresponding to the kinds of the coded additive data service received from the coder(22) and the additive data service received from the service ID number generator(24) to data in a packet form. A controller(26) controls each functional part, and records and stores a required data. |
