INTER-BOARD COMMUNICATION METHOD IN BASE STATION OF NEXT GENERATION MOBILE COMMUNICATION SYSTEM

摘要

PURPOSE: An inter-board communication method in a base station of next generation mobile communication system is provided to make a smooth multi-communication between a master and a slave by allowing the master to manage interrupts coming in from each slave. CONSTITUTION: An interrupt table(I2TT) and a table(T2RT) are initialized and every value is cleared(201). It is checked whether an interrupt signal has been received from a slave(202). If no interrupt signal has been received, it is checked whether a data has been received from the slave(203). If no data has been received from the slave, it is checked whether every slave flag of the T2RT has been cleared(204). If every slave flag of the T2RT has been cleared, a slave with the longest time is searched from the I2TT(205). A token is transmitted to the slave with the longest time and a flag set time of the slave is increased in the T2RT(206). If not every slave flag of the T2RT has been cleared, a slave with the longest time is searched from the T2RT(210) and it is checked whether a re-transmission counter of the slave is less than 3(211). If the re-transmission counter is less than 3, it is checked whether 3 seconds has passed(212). If 3 seconds has passed, a token is re-transmitted to the slave(213).