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osmo-msc
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bsc_init: Allow DTXu and enable DTXd on RSL (experimental) 

Allow the MS to use uplink discontinous transmission by
setting the right bit in the SystemInformation and set
DTXd/DTXu on the RSL channel commands.

This is configurable via dtx-used (0|1) on the network
level and still considered as experimental.
This commit is contained in:
Holger Hans Peter Freyther 2010-09-06 09:25:48 +08:00
parent 457c2a879c
commit 5a3a61d88f
4 changed files with 28 additions and 3 deletions
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4
openbsc/include/openbsc/gsm_data.h
View File

@ -709,6 +709,10 @@ struct gsm_network {
struct {
enum rrlp_mode mode;
} rrlp;
/* enable the DTXu and DTXd for this network */
int dtx_enabled;
int msc_prio;
};

5
openbsc/src/abis_rsl.c
View File

@ -330,7 +330,10 @@ static int channel_mode_from_lchan(struct rsl_ie_chan_mode *cm,
memset(cm, 0, sizeof(cm));
/* FIXME: what to do with data calls ? */
cm->dtx_dtu = 0x00;
if (lchan->ts->trx->bts->network->dtx_enabled)
cm->dtx_dtu = 0x03;
else
cm->dtx_dtu = 0x00;
/* set TCH Speech/Data */
cm->spd_ind = lchan->rsl_cmode;

10
openbsc/src/bsc_init.c
View File

@ -1153,8 +1153,14 @@ static int bootstrap_bts(struct gsm_bts *bts)
}
/* some defaults for our system information */
bts->si_common.cell_options.radio_link_timeout = 2; /* 12 */
bts->si_common.cell_options.dtx = 2; /* MS shall not use upplink DTX */
bts->si_common.cell_options.radio_link_timeout = 7; /* 12 */
/* allow/disallow DTXu */
if (bts->network->dtx_enabled)
bts->si_common.cell_options.dtx = 0;
else
bts->si_common.cell_options.dtx = 2;
bts->si_common.cell_options.pwrc = 0; /* PWRC not set */
bts->si_common.cell_sel_par.acs = 0;

12
openbsc/src/bsc_vty.c
View File

@ -505,6 +505,7 @@ static int config_write_net(struct vty *vty)
vty_out(vty, " timer t3117 %u%s", gsmnet->T3117, VTY_NEWLINE);
vty_out(vty, " timer t3119 %u%s", gsmnet->T3119, VTY_NEWLINE);
vty_out(vty, " timer t3141 %u%s", gsmnet->T3141, VTY_NEWLINE);
vty_out(vty, " use-dtx %u%s", gsmnet->dtx_enabled, VTY_NEWLINE);
return CMD_SUCCESS;
}
@ -1277,6 +1278,16 @@ DECLARE_TIMER(3117, "Currently not used.")
DECLARE_TIMER(3119, "Currently not used.")
DECLARE_TIMER(3141, "Currently not used.")
DEFUN(cfg_net_dtx,
cfg_net_dtx_cmd,
"dtx-used (0|1)",
"Enable the usage of DTX.\n"
"DTX is enabled/disabled")
{
struct gsm_network *gsmnet = gsmnet_from_vty(vty);
gsmnet->dtx_enabled = atoi(argv[0]);
return CMD_SUCCESS;
}
/* per-BTS configuration */
DEFUN(cfg_bts,
@ -2285,6 +2296,7 @@ int bsc_vty_init(void)
install_element(GSMNET_NODE, &cfg_net_T3117_cmd);
install_element(GSMNET_NODE, &cfg_net_T3119_cmd);
install_element(GSMNET_NODE, &cfg_net_T3141_cmd);
install_element(GSMNET_NODE, &cfg_net_dtx_cmd);
install_element(GSMNET_NODE, &cfg_bts_cmd);
install_node(&bts_node, config_write_bts);