发明名称 |
SYNCHRONIZING CLOCK SIGNALS IN WIRELESS NETWORKS |
摘要 |
A communications system extends over a cellular region formed of a plurality of wireless cells where each cell covers a portion of the cellular region. Each cell has a base station clock unit that facilitates reliable and accurate synchronization with other clocks units in other cells using a master clock signal from a global positioning system (GPS) or other accurate frequency source. The clock unit in each cell includes a local clock providing a local clock signal for clocking the cell. A master clock source provides one or more master clock signals and a clock synchronizer receives the master clock signals and forms a synchronizing master clock signal for synchronizing the local clock signal. In one or more of the wireless cells of the communication system, the clock unit is a master clock unit which includes a clock distributor for distributing a distributed master clock signal to one or more other wireless cells having slave clock units.
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申请公布号 |
WO0069102(A1) |
申请公布日期 |
2000.11.16 |
申请号 |
WO2000US13072 |
申请日期 |
2000.05.11 |
申请人 |
CISCO TECHNOLOGY, INC. |
发明人 |
SAYERS, IAN, LESLIE;LONG, PAUL, JAN;CRIPPS, PETER, KENDALL |
分类号 |
H04B7/26;H04J3/06;(IPC1-7):H04J3/06 |
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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