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  1. 13 Feb, 2024 2 commits
    • Kirill Smelkov's avatar
      software/ors-amarisoft: enb: Start to generalize the code to handle multiple Radio Units · 0a285a34
      Kirill Smelkov authored
      Add code to organize a registry of Radio Units and handle that registry generally everywhere.
      
      RU registry is still populated from cell_list and in practice there still can
      be radio units only of the same type, but besides slaplte.load_ru_and_cell
      which is aware of that, the rest of the code tries to do everything as if
      RUs of different type could be present simultaneously.
      
      Now it is not only lopcomm who can do multiCELL, but also sunwave and SDR as well.
      
      gNB also starts to gain support for cell_list, because cell_list loading is
      uniformly applied to both eNB and gNB. However, since enb.cfg is not yet
      prepared to handle multiple NR cells yet, there is an assert that in case of NR
      there is only one RU/cell present there. We will remove this limitation in a
      follow-up patch.
      
      Later we will also change the loading to load RU descriptions from shared instances
      and they won't be constrained to be Radio Units of the same type. But we need
      to prepare a lot to be able to do that.
      
      One more step forward towards MultiRU.
      
      Tests will be added later as full tests for generic MultiRU.
      
      Backward compatibility: no change for ORS and practically no breaking change for everything else.
      
      --------
      
      Appendix. Diff for rendered enb.cfg and gnb.cfg before and after this patch:
      
      ```
      $ ./pythonwitheggs slapos-render-config.py && git diff -w --no-index config/{old,out}
      ```
      
      ```diff
      diff --git a/config/old/enb.cfg b/config/out/enb.cfg
      index 884483b0a..cafdf42be 100644
      --- a/config/old/enb.cfg
      +++ b/config/out/enb.cfg
      @@ -1,24 +1,22 @@
      
      -
       {
         log_options: "all.level=error,all.max_size=0,nas.level=debug,nas.max_size=1,s1ap.level=debug,s1ap.max_size=1,x2ap.level=debug,x2ap.max_size=1,rrc.level=debug,rrc.max_size=1,ngap.level=debug,ngap.max_size=1,xnap.level=debug,xnap.max_size=1,phy.level=info,file.rotate=1G,file.path=/dev/null",
         log_filename: "log/enb.log",
      
      -
      +  // Radio Units
         rf_driver: {
      +      // default-RU 2T2R  (ors)
             name: "sdr",
             args: "dev0=/dev/sdr0",
      -
             rx_antenna:"tx_rx",
             tdd_tx_mod: 1,
         },
      -  tx_gain: 62,
      -  rx_gain: 43,
      -
      +  tx_gain: [62, 62],
      +  rx_gain: [43, 43],
         com_addr: "127.0.1.2:9001",
         // LTE core network
         mme_list: [
      @@ -36,6 +34,8 @@
      
         // LTE cells
         cell_list: [
      +
      +    // default  (default-RU)
           {
             rf_port:      0,
             n_antenna_dl: 2,
      diff --git a/config/old/gnb.cfg b/config/out/gnb.cfg
      index fd57ca3dc..7818b4ea8 100644
      --- a/config/old/gnb.cfg
      +++ b/config/out/gnb.cfg
      @@ -1,24 +1,22 @@
      
      -
       {
         log_options: "all.level=error,all.max_size=0,nas.level=debug,nas.max_size=1,s1ap.level=debug,s1ap.max_size=1,x2ap.level=debug,x2ap.max_size=1,rrc.level=debug,rrc.max_size=1,ngap.level=debug,ngap.max_size=1,xnap.level=debug,xnap.max_size=1,phy.level=info,file.rotate=1G,file.path=/dev/null",
         log_filename: "log/enb.log",
      
      -
      +  // Radio Units
         rf_driver: {
      +      // default-RU 2T2R  (ors)
             name: "sdr",
             args: "dev0=/dev/sdr0",
      -
             rx_antenna:"tx_rx",
             tdd_tx_mod: 1,
         },
      -  tx_gain: 62,
      -  rx_gain: 43,
      -
      +  tx_gain: [62, 62],
      +  rx_gain: [43, 43],
         com_addr: "127.0.1.2:9001",
         // NR core network
         amf_list: [
      ```
      0a285a34
    • Kirill Smelkov's avatar
      software/ors-amarisoft: ue: Make default K and IMSI to be common for LTE and NR · af96697d
      Kirill Smelkov authored
      K and IMSI are orthogonal to RAT and, similarly to how we keep default
      n_antenna_dl/ul independent of RAT we can do so with this default UE parameters.
      af96697d
  2. 30 Jan, 2024 1 commit
    • Kirill Smelkov's avatar
      software/ors-amarisoft: Start to introduce ORS mode · f3f1cb46
      Kirill Smelkov authored
      In MultiRU we are going to have generic software with flexible configuration
      and many features + ORS software, which wraps the generic part, adds ORS
      specific features, and translates simple ORS schema to generic ones.
      
      Let's first move ORS-specific bits to dedicated place as a preparatory step for that:
      
      - add software-ors.cfg . In the future software-ors.cfg will be the entry point
        for ORS mode, but for now it is only a place from where software-ors-* extend from.
      
      - add instance-ors.cfg . We move ORS-specific code from instance.cfg here and
        set it to use instance-ors-enb.jinja2.cfg when instantiating enb/gnb.
      
      - add instance-ors-enb.jinja2.cfg . This pulls ORS-specific code from
        instance-enb.jinja2.cfg + instance-gnb.jinja2.cfg and wraps them with ORS
        context built by instance-ors.cfg
      
      - in the templates the way to see whether it is ORS or not, and if yes, to access
        ORS parameters is changed: now it is always via checking `ors` object, which
        can be either False for non-ORS mode, or dict for ORS mode, and if it is dict
        the keys inside that dict are ORS specific properties, e.g. ors['one-watt'].
      
        This adjustment is handy to organize ORS mode extension from generic with
        generic setting `json ors false` in the context, and ORS mode undoing that and
        setting ORS context properly. I think the code also reads more clear this way, i.e. with
      
       	{%- if one_watt == "True" %}
      
        changed to
      
      	{%- if ors['one-watt'] %}
      
        because in the second variant it is clear that one-watt is a property of ORS.
      
      The rendered configs for enb.cfg and gnb.cfg stay unchanged.
      
      /cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus
      /proposed-for-review-on nexedi/slapos!1522
      /reviewed-by TrustMe
      f3f1cb46
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