[paging] Only page if we have some free channels right now
Only page if we have a load that is acceptable for paging. This
option is off by default, and can be enabled per bts. The idea
is that when we have no resources right now we will not page as
it will only create more RACHs and increase the load.
By default we are keeping the old behavior to always page and
only by changing a setting one is using the new behavior.
diff --git a/openbsc/src/bsc_vty.c b/openbsc/src/bsc_vty.c
index 3eb91d8..99b050b 100644
--- a/openbsc/src/bsc_vty.c
+++ b/openbsc/src/bsc_vty.c
@@ -449,6 +449,11 @@
config_write_e1_link(vty, &bts->oml_e1_link, " oml ");
vty_out(vty, " oml e1 tei %u%s", bts->oml_tei, VTY_NEWLINE);
}
+
+ /* if we have a limit, write it */
+ if (bts->paging.free_chans_need >= 0)
+ vty_out(vty, " paging free %d%s", bts->paging.free_chans_need, VTY_NEWLINE);
+
config_write_bts_gprs(vty, bts);
llist_for_each_entry(trx, &bts->trx_list, list)
@@ -1773,6 +1778,16 @@
return CMD_SUCCESS;
}
+DEFUN(cfg_bts_pag_free, cfg_bts_pag_free_cmd,
+ "paging free FREE_NR",
+ "Only page when having a certain amount of free slots. -1 to disable")
+{
+ struct gsm_bts *bts = vty->index;
+
+ bts->paging.free_chans_need = atoi(argv[0]);
+ return CMD_SUCCESS;
+}
+
DEFUN(cfg_bts_gprs_ns_timer, cfg_bts_gprs_ns_timer_cmd,
"gprs ns timer " NS_TIMERS " <0-255>",
GPRS_TEXT "Network Service\n"
@@ -2352,6 +2367,7 @@
install_element(BTS_NODE, &cfg_bts_gprs_nsvc_lport_cmd);
install_element(BTS_NODE, &cfg_bts_gprs_nsvc_rport_cmd);
install_element(BTS_NODE, &cfg_bts_gprs_nsvc_rip_cmd);
+ install_element(BTS_NODE, &cfg_bts_pag_free_cmd);
install_element(BTS_NODE, &cfg_bts_si_mode_cmd);
install_element(BTS_NODE, &cfg_bts_si_static_cmd);