bsc: Allow to page a BTS that is excluded from the RF lock
The RF lock excluded BTS was not paged at all. Now forward the paging message to the handler and call a function that will check if this LAC can be paged right now. Introduce a new paging method that allows to page on a dedicated bts, refactor the code to use this method for paging.
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3d119f1de4
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@ -1,6 +1,6 @@
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/*
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/*
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* (C) 2010-2012 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010-2013 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010-2012 by On-Waves
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* (C) 2010-2013 by On-Waves
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* All Rights Reserved
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* All Rights Reserved
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* This program is free software; you can redistribute it and/or modify
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@ -23,6 +23,9 @@
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#include "gsm_data.h"
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#include "gsm_data.h"
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struct osmo_msc_data;
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int bsc_grace_allow_new_connection(struct gsm_network *net, struct gsm_bts *bts);
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int bsc_grace_allow_new_connection(struct gsm_network *net, struct gsm_bts *bts);
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int bsc_grace_paging_request(struct gsm_subscriber *sub, int type, struct osmo_msc_data *msc);
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#endif
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#endif
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@ -56,6 +56,8 @@ struct gsm_paging_request {
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/* schedule paging request */
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/* schedule paging request */
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int paging_request(struct gsm_network *network, struct gsm_subscriber *subscr,
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int paging_request(struct gsm_network *network, struct gsm_subscriber *subscr,
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int type, gsm_cbfn *cbfn, void *data);
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int type, gsm_cbfn *cbfn, void *data);
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int paging_request_bts(struct gsm_bts *bts, struct gsm_subscriber *subscr,
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int type, gsm_cbfn *cbfn, void *data);
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/* stop paging requests */
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/* stop paging requests */
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void paging_request_stop(struct gsm_bts *bts, struct gsm_subscriber *subscr,
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void paging_request_stop(struct gsm_bts *bts, struct gsm_subscriber *subscr,
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@ -1,5 +1,5 @@
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/* Paging helper and manager.... */
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/* Paging helper and manager.... */
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/* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
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/* (C) 2009,2013 by Holger Hans Peter Freyther <zecke@selfish.org>
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* All Rights Reserved
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* All Rights Reserved
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* This program is free software; you can redistribute it and/or modify
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@ -298,6 +298,26 @@ static int _paging_request(struct gsm_bts *bts, struct gsm_subscriber *subscr,
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return 0;
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return 0;
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}
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}
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int paging_request_bts(struct gsm_bts *bts, struct gsm_subscriber *subscr,
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int type, gsm_cbfn *cbfn, void *data)
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{
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int rc;
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/* skip all currently inactive TRX */
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if (!trx_is_usable(bts->c0))
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return 0;
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/* maybe it is the first time we use it */
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paging_init_if_needed(bts);
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/* Trigger paging, pass any error to the caller */
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rc = _paging_request(bts, subscr, type, cbfn, data);
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if (rc < 0)
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return rc;
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return 1;
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}
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int paging_request(struct gsm_network *network, struct gsm_subscriber *subscr,
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int paging_request(struct gsm_network *network, struct gsm_subscriber *subscr,
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int type, gsm_cbfn *cbfn, void *data)
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int type, gsm_cbfn *cbfn, void *data)
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{
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{
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@ -314,19 +334,10 @@ int paging_request(struct gsm_network *network, struct gsm_subscriber *subscr,
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if (!bts)
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if (!bts)
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break;
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break;
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/* skip all currently inactive TRX */
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rc = paging_request_bts(bts, subscr, type, cbfn, data);
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if (!trx_is_usable(bts->c0))
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continue;
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/* maybe it is the first time we use it */
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paging_init_if_needed(bts);
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num_pages++;
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/* Trigger paging, pass any error to caller */
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rc = _paging_request(bts, subscr, type, cbfn, data);
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if (rc < 0)
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if (rc < 0)
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return rc;
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return rc;
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num_pages += rc;
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} while (1);
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} while (1);
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if (num_pages == 0)
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if (num_pages == 0)
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@ -177,7 +177,7 @@ static int bssmap_handle_paging(struct osmo_msc_data *msc,
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subscr->tmsi = tmsi;
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subscr->tmsi = tmsi;
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LOGP(DMSC, LOGL_INFO, "Paging request from MSC IMSI: '%s' TMSI: '0x%x/%u' LAC: 0x%x\n", mi_string, tmsi, tmsi, lac);
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LOGP(DMSC, LOGL_INFO, "Paging request from MSC IMSI: '%s' TMSI: '0x%x/%u' LAC: 0x%x\n", mi_string, tmsi, tmsi, lac);
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paging_request(msc->network, subscr, chan_needed, NULL, msc);
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bsc_grace_paging_request(subscr, chan_needed, msc);
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return 0;
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return 0;
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}
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}
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@ -413,7 +413,6 @@ static int bssmap_rcvmsg_udt(struct osmo_msc_data *msc,
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ret = bssmap_handle_reset_ack(msc, msg, length);
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ret = bssmap_handle_reset_ack(msc, msg, length);
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break;
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break;
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case BSS_MAP_MSG_PAGING:
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case BSS_MAP_MSG_PAGING:
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if (bsc_grace_allow_new_connection(msc->network, NULL))
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ret = bssmap_handle_paging(msc, msg, length);
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ret = bssmap_handle_paging(msc, msg, length);
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break;
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break;
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}
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}
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@ -1,6 +1,6 @@
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/*
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/*
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* (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010-2013 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010 by On-Waves
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* (C) 2010-2013 by On-Waves
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* All Rights Reserved
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* All Rights Reserved
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* This program is free software; you can redistribute it and/or modify
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@ -22,17 +22,59 @@
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#include <openbsc/osmo_bsc_rf.h>
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#include <openbsc/osmo_bsc_rf.h>
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#include <openbsc/osmo_msc_data.h>
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#include <openbsc/osmo_msc_data.h>
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#include <openbsc/gsm_04_80.h>
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#include <openbsc/gsm_04_80.h>
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#include <openbsc/gsm_subscriber.h>
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#include <openbsc/paging.h>
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#include <openbsc/signal.h>
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#include <openbsc/signal.h>
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int bsc_grace_allow_new_connection(struct gsm_network *network, struct gsm_bts *bts)
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int bsc_grace_allow_new_connection(struct gsm_network *network, struct gsm_bts *bts)
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{
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{
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if (!network->bsc_data->rf_ctrl)
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if (!network->bsc_data->rf_ctrl)
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return 1;
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return 1;
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if (bts && bts->excl_from_rf_lock)
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if (bts->excl_from_rf_lock)
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return 1;
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return 1;
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return network->bsc_data->rf_ctrl->policy == S_RF_ON;
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return network->bsc_data->rf_ctrl->policy == S_RF_ON;
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}
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}
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/**
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* Try to not page if everything the cell is not on.
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*/
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int bsc_grace_paging_request(struct gsm_subscriber *subscr, int chan_needed,
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struct osmo_msc_data *msc)
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{
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struct gsm_bts *bts = NULL;
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if (!subscr->net->bsc_data->rf_ctrl)
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goto page;
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if (subscr->net->bsc_data->rf_ctrl->policy == S_RF_ON)
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goto page;
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/*
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* Check if there is any BTS that is on for the given lac. Start
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* with NULL and iterate through all bts.
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*/
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do {
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bts = gsm_bts_by_lac(subscr->net, subscr->lac, bts);
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if (!bts)
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break;
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/*
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* continue if the BTS is not excluded from the lock
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*/
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if (!bts->excl_from_rf_lock)
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continue;
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/*
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* now page on this bts
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*/
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paging_request_bts(bts, subscr, chan_needed, NULL, msc);
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} while (1);
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/* All bts are either off or in the grace period */
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return 0;
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page:
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return paging_request(subscr->net, subscr, chan_needed, NULL, msc);
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}
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static int handle_sub(struct gsm_lchan *lchan, const char *text)
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static int handle_sub(struct gsm_lchan *lchan, const char *text)
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{
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{
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struct gsm_subscriber_connection *conn;
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struct gsm_subscriber_connection *conn;
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