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Ericsson Minilink » History » Version 1

admin, 02/19/2016 10:52 PM
add page about mini-link

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= Ericsson Mini-Link =
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Ericsson Mini-Link is a series of commercially very successful microwave links.
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They are used world-wide for back-hauling GSM BTS and UMTS Node-B, i.e. for the
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A-bis and IuB-links.
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Every microwave link is a point-to-point link.
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Each side of the link has an IDU (In Door Unit) and ODU (Out Door Unit).
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=== IDU ===
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The IDU is responsible for transmitting and receiving at the respective microwave frequency (normally 7...38GHz).
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In the Mini-Link system they are most commonly they are called MMU.
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There are different types of MMUs, representing the different link speeds of the microwave link, e.g.
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 * MMU 34+2 (1 E3 link at 34 Mbps plus 1 E1 link for mgmt)
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 * MMU 4x2 (4 E1 links at each 2 Mbps)
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The MMU has connections for the data links (E1, E3, STM-1, etc.) as well as a coaxial wire connecting it with the
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ODU.
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=== ODU ===
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The ODU is contains the actual modem that modulates the E1, E3 or STM-1 link onto the IF (Intermediate Frequency)
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which is put on the coaxial link towards the ODU.
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Conversely, on a different IF, there is the down-link from the ODU towards the demodulator/decoder in the IDU.
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In the Mini-Link system, the ODU is commonly called RAU (Radio Access Unit).
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== Mini-Link Equipment that we have ==
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=== RAU ===
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==== 15 GHz ====
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||1||RAU 15/13||LaForge||
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||1||RAU 15/16||LaForge||
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==== 26 GHz ====
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||1||RAU 26/24||LaForge||
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||1||RAU 26/29||LaForge||
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==== 23 GHz ====
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||1||RAU2 M 23/77||LaForge||
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||1||RAU2 M 23/79||LaForge||
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=== MMU ===
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||3||MMU 34+2||LaForge||
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=== SMU ===
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||2||SMU 16x2||LaForge||
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