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bhargava_abhyankar gerrit-no-reply at lists.osmocom.org
Review at https://gerrit.osmocom.org/436
Modify SI 13 field to support 11 bit RACH
System Information 13 field EGPRS PACKET CHANNEL REQUEST is
modified to support 11 bit RACH. Further VTY configuration is added
to enable/disable 11 bit RACH support in EGPRS. By default 11 bit
RACH support is disabled.
Change-Id: I51357bec936c28a26ab9ff5d59e0e30ca3363297
---
M openbsc/include/openbsc/gsm_data_shared.h
M openbsc/include/openbsc/rest_octets.h
M openbsc/src/libbsc/bsc_vty.c
M openbsc/src/libbsc/rest_octets.c
M openbsc/src/libbsc/system_information.c
5 files changed, 57 insertions(+), 1 deletion(-)
git pull ssh://gerrit.osmocom.org:29418/openbsc refs/changes/36/436/1
diff --git a/openbsc/include/openbsc/gsm_data_shared.h b/openbsc/include/openbsc/gsm_data_shared.h
index d3a61af..9ee16ee 100644
--- a/openbsc/include/openbsc/gsm_data_shared.h
+++ b/openbsc/include/openbsc/gsm_data_shared.h
@@ -690,6 +690,7 @@
/* Not entirely sure how ip.access specific this is */
struct {
+ uint8_t is_11bit_rach;
enum bts_gprs_mode mode;
struct {
struct gsm_abis_mo mo;
diff --git a/openbsc/include/openbsc/rest_octets.h b/openbsc/include/openbsc/rest_octets.h
index 91413b5..31b2f06 100644
--- a/openbsc/include/openbsc/rest_octets.h
+++ b/openbsc/include/openbsc/rest_octets.h
@@ -88,6 +88,7 @@
uint32_t t3192; /* in milliseconds */
uint32_t drx_timer_max;/* in seconds */
uint32_t bs_cv_max;
+ uint8_t is_11bit_rach;
uint8_t ext_info_present;
struct {
diff --git a/openbsc/src/libbsc/bsc_vty.c b/openbsc/src/libbsc/bsc_vty.c
index 04f2cc6..037c69a 100644
--- a/openbsc/src/libbsc/bsc_vty.c
+++ b/openbsc/src/libbsc/bsc_vty.c
@@ -444,6 +444,15 @@
if (bts->gprs.mode == BTS_GPRS_NONE)
return;
+ if (bts->gprs.is_11bit_rach) {
+ vty_out(vty, " eleven_bit_rach_support%s",
+ VTY_NEWLINE);
+ } else {
+ vty_out(vty, " no eleven_bit_rach_support%s",
+ VTY_NEWLINE);
+
+ }
+
vty_out(vty, " gprs routing area %u%s", bts->gprs.rac,
VTY_NEWLINE);
vty_out(vty, " gprs network-control-order nc%u%s",
@@ -2720,6 +2729,40 @@
return CMD_SUCCESS;
}
+#define eleven_bit_RACH_STR "11 bit RACH configuration\n"
+
+DEFUN(cfg_bts_eleven_bit_rach, cfg_bts_eleven_bit_rach_cmd,
+ "eleven_bit_rach_support",
+ eleven_bit_RACH_STR "Enable 11 bit RACH for EGPRS\n")
+{
+ struct gsm_bts *bts = vty->index;
+
+ bts->gprs.is_11bit_rach = 1;
+
+ if (bts->gprs.is_11bit_rach > 1) {
+ vty_out(vty, "Error in RACH type%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_bts_no_eleven_bit_rach, cfg_bts_no_eleven_bit_rach_cmd,
+ "no eleven_bit_rach_support",
+ NO_STR eleven_bit_RACH_STR)
+{
+ struct gsm_bts *bts = vty->index;
+
+ bts->gprs.is_11bit_rach = 0;
+
+ if (bts->gprs.is_11bit_rach > 1) {
+ vty_out(vty, "Error in RACH type%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ return CMD_SUCCESS;
+}
+
#define SI_TEXT "System Information Messages\n"
#define SI_TYPE_TEXT "(1|2|3|4|5|6|7|8|9|10|13|16|17|18|19|20|2bis|2ter|2quater|5bis|5ter)"
#define SI_TYPE_HELP "System Information Type 1\n" \
@@ -4081,6 +4124,8 @@
install_element(BTS_NODE, &cfg_bts_penalty_time_rsvd_cmd);
install_element(BTS_NODE, &cfg_bts_radio_link_timeout_cmd);
install_element(BTS_NODE, &cfg_bts_gprs_mode_cmd);
+ install_element(BTS_NODE, &cfg_bts_eleven_bit_rach_cmd);
+ install_element(BTS_NODE, &cfg_bts_no_eleven_bit_rach_cmd);
install_element(BTS_NODE, &cfg_bts_gprs_ns_timer_cmd);
install_element(BTS_NODE, &cfg_bts_gprs_rac_cmd);
install_element(BTS_NODE, &cfg_bts_gprs_net_ctrl_ord_cmd);
diff --git a/openbsc/src/libbsc/rest_octets.c b/openbsc/src/libbsc/rest_octets.c
index 065fb7b..06ac532 100644
--- a/openbsc/src/libbsc/rest_octets.c
+++ b/openbsc/src/libbsc/rest_octets.c
@@ -649,8 +649,15 @@
bitvec_set_uint(bv, (1 + 5 + 3)-1, 6);
/* EGPRS supported in the cell */
bitvec_set_bit(bv, 1);
+
/* 1bit EGPRS PACKET CHANNEL REQUEST */
- bitvec_set_bit(bv, gco->ext_info.use_egprs_p_ch_req);
+ if (gco->is_11bit_rach == 0) {
+ bitvec_set_bit(bv,
+ gco->ext_info.use_egprs_p_ch_req);
+ } else {
+ bitvec_set_bit(bv, 0);
+ }
+
/* 4bit BEP PERIOD */
bitvec_set_uint(bv, gco->ext_info.bep_period, 4);
}
diff --git a/openbsc/src/libbsc/system_information.c b/openbsc/src/libbsc/system_information.c
index fd228e3..2eea851 100644
--- a/openbsc/src/libbsc/system_information.c
+++ b/openbsc/src/libbsc/system_information.c
@@ -957,6 +957,7 @@
.drx_timer_max = 3,
.bs_cv_max = 15,
.ext_info_present = 0,
+ .is_11bit_rach = 0,
.ext_info = {
/* The values below are just guesses ! */
.egprs_supported = 0,
@@ -1004,6 +1005,7 @@
/* Information about the other SIs */
si13_default.bcch_change_mark = bts->bcch_change_mark;
+ si13_default.cell_opts.is_11bit_rach = bts->gprs.is_11bit_rach;
ret = rest_octets_si13(si13->rest_octets, &si13_default);
if (ret < 0)
--
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I51357bec936c28a26ab9ff5d59e0e30ca3363297
Gerrit-PatchSet: 1
Gerrit-Project: openbsc
Gerrit-Branch: master
Gerrit-Owner: bhargava_abhyankar <Bhargava.Abhyankar at radisys.com>