| 摘要 |
PURPOSE: A channel card with a multi-sector processing type is provided to mount 3 CSMs(Cell Site Modems) on the channel card, separately operate the mounted 3 CSMs, and perform the conversion of a single sector about 3FAs(Frequency Assignments) and a single sector about 1FA. CONSTITUTION: A central control module(100) controls a sector-classified set FA and the process of traffic data. A cell bus interface unit(120) transmits and receives call processing information for controlling the process of calls and assigning call resources of a BTS(Base station Transceiver Subsystem) through a cell bus. 3 CSMs(132,134,136) independently set different FAs according to the traffic process of the central control module(100). A multiplexer(170) receives inputted reverse traffic data, assigns the received data to be suitable for a predetermined FA and sector, and provides the assigned data to the 3 CSMs(132,134,136). A clock control unit(160) receives a signal for the same sector and the set FA from the multiplexer(170), and supplies a clock signal to the 3 CSMs(132,134,136). |
