Nokia of America Corporation BBTRX-06 Benutzerhandbuch
Common Public Radio Interface Configuration
The Common Public Radio Interface (CPRI) of the RRHs can be connected in two
different ways to the Base Band Unit:
• Star configuration
• Daisy chain configuration
different ways to the Base Band Unit:
• Star configuration
• Daisy chain configuration
Star configuration
The star configuration is used when the RRHs are being mounted far from each other, but
nearly equally spaced from the Base Band Unit.
nearly equally spaced from the Base Band Unit.
Daisy chain configuration
The daisy chain configuration is used when the RRHs are being mounted close together
but far from the Base Band Unit
but far from the Base Band Unit
From an installation perspective these main configurations can be distinguished:
RRH
RRH
RRH
Fiber In
CPRI SLAVE
CCM
Alpha Sector
Beta Sector
Gamma Sector
BBU
*
*
*
*
Customer supplied optional Fiber Splice/Management enclosure
*
CPRI SLAVE
CPRI SLAVE
Site configurations
Common Public Radio Interface Configuration
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FDD RRH 700L
3MN-00075-0002-RJZZA
Issue 0
FDD RRH 700L
3MN-00075-0002-RJZZA
Issue 0
September 2012
Alcatel-Lucent – Proprietary
Use pursuant to applicable agreements
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