发明名称 |
TFU IN CDMA MOBILE SYSTEM |
摘要 |
The present invention relates to a timing frequency unit (TFU) which provides standard timing to a base station of CDMA mobile communications system on receipt of time information and clocks from a global positioning system, and initializes a sector interface card (SIC) and monitors its state. This unit includes a timing generating part with an offset controller producing a given clock; a control part with a processor and its peripheral circuit and adding or subtracting a counter value for clock synchronization of the timing generating part a duplexing control part determining an operating mode of the TFU in response to the operating state of its unit and the operating state of the other side's unit; an input/output part for initialization of the SIC and hardware control; and a selecting part for outputting timing and control information from one unit.
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申请公布号 |
KR0123395(B1) |
申请公布日期 |
1997.11.19 |
申请号 |
KR19940036325 |
申请日期 |
1994.12.23 |
申请人 |
KOREA ELECTRONICS & TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KANG, BYUNG-SIK |
分类号 |
H04B7/26;(IPC1-7):H04B7/26 |
主分类号 |
H04B7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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