[M] Change in osmo-bsc[master]: doc: running: Describe how to configure a co-located PCU

dexter has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bsc/+/32030 ) Change subject: doc: running: Describe how to configure a co-located PCU ...................................................................... doc: running: Describe how to configure a co-located PCU The manual does not yet mention the possibility to configure a BSC co-located PCU. Lets add a short description to the chapter Running OsmoBSC, Configure primary Links that enables users to get an idea where exactly the BSC co-located PCU has its place in the RAN infrastructure and which links it is connected with. Also give a short example how to setup the unix domain socket path. A more detailed description, especially about the timeslot configuration will be added with a follow up patch for bts.adoc Related: OS#5198 Change-Id: I3af3cd8ef7099bb94f4cb25513e9dfdc5fcc1b5a --- M doc/manuals/chapters/bts.adoc M doc/manuals/chapters/running.adoc 2 files changed, 65 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/30/32030/1 diff --git a/doc/manuals/chapters/bts.adoc b/doc/manuals/chapters/bts.adoc index 2b66c9c..33f203e 100644 --- a/doc/manuals/chapters/bts.adoc +++ b/doc/manuals/chapters/bts.adoc @@ -181,6 +181,7 @@ means of `si5 neighbor-list (add|del) arfcn <0-1023>` for SACCH (SI5). +[[config_gprs_pcu_pars]] === Configuring GPRS PCU parameters of a BTS In the case of BTS models using Abis/IP (IPA), the GPRS PCU is located diff --git a/doc/manuals/chapters/running.adoc b/doc/manuals/chapters/running.adoc index 70f9d28..6d690ce 100644 --- a/doc/manuals/chapters/running.adoc +++ b/doc/manuals/chapters/running.adoc @@ -218,3 +218,47 @@ ---- More detailed configuration is described in <<smlc-config>>. + + +==== Configure BSC co-located PCU + +While small IP based BTSs usually come with a built in PCU (BTS co-located +PCU), this does not have to be the case with any BTS. Especially larger E1 BTS +usually make use of a BSC co-located PCU. + +In the case of OsmoBSC this means that an instance of OsmoPCU is running next +to OsmoBSC. Both processes share a unix domain socket to exchange signaling +traffic and configuration parameters. + +.OsmoBSC with co-located OsmoPCU' +[graphviz] +---- +digraph G { + rankdir=LR; + BTS [label="BTS"]; + + subgraph cluster_ran { + label="RAN"; + PCU [label="OsmoPCU"]; + BSC [label="OsmoBSC"]; + MGW [label="OsmoMGW"]; + { rank=same BSC MGW PCU } + } + + BTS->PCU [label="GPRS/TRAU", style=dotted]; + BTS->BSC [label="Abis"]; + BTS->MGW [label="SPEECH/TRAU", style=dotted]; + BSC->MGW [label="MGCP"]; + BSC->PCU [label="PCU_SOCK"]; +} +---- + +Apart from the configuration of the PCU socket path the configuration is not +much different from those where the PCU is integrated inside the BTS. See also +see also <<config_gprs_pcu_pars>> for a detailed description. + +.Configure socket path to co-located PCU +---- +network + pcu-socket /tmp/pcu_bts +---- -- To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/32030 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-Change-Id: I3af3cd8ef7099bb94f4cb25513e9dfdc5fcc1b5a Gerrit-Change-Number: 32030 Gerrit-PatchSet: 1 Gerrit-Owner: dexter &lt;pmaier(a)sysmocom.de&gt; Gerrit-MessageType: newchange