BS11 » History » Version 4
laforge, 02/20/2016 08:51 PM
1 | 3 | laforge | The Siemens BS-11 is a relatively small [[GSM]] [[BTS]], sometimes known as Siemens microBTS. |
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2 | 1 | laforge | |
3 | 3 | laforge | Please note: *The BS-11 is not a GSM Base Station*. It is a *GSM Base _Transceiver_ Station* and only one element out of the |
4 | 2 | laforge | quite complex GSM network. The station itself can only send and receive data on the GSM frequencies. You need to emulate at least |
5 | 3 | laforge | the BSC, MSC and HLR/VLR to be able to use GSM phones with the BS-11. [[OpenBSC]] is a project trying to implement the minimal neccessary parts as Free Software |
6 | 2 | laforge | |
7 | BS-11 was originally developed and manufactured by OTE in Firenze, Italy. The entire product was then later sold to Siemens SBS. |
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8 | 1 | laforge | |
9 | The BS-11 is available in a variety of configurations. Variations include |
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11 | * power supply |
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12 | 3 | laforge | * AC power supply 110/220V |
13 | * 48V DC power supply |
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14 | * number of [[TRX]] |
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15 | * one TRX |
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16 | * two TRX |
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17 | 1 | laforge | * each of the TRX can be located in different bands |
18 | 3 | laforge | * GSM900 |
19 | * GSM1800 |
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20 | 1 | laforge | |
21 | The uplink of the BS-11, much like most BTS, is a E1 / PCM30 interface, with the [Abis] protocol on top. |
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23 | Original Documentation to the BS-11 is only available under NDA. |
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25 | 4 | laforge | More information is available in this wiki: |
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27 | {{child_pages}} |
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30 | 1 | laforge | External links: |
31 | * [http://laforge.gnumonks.org/photoalbum/devices/bs11-disassembly] photographs of disassembled BS-11 |