diff options
| author | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2016-01-19 10:44:42 +0100 |
|---|---|---|
| committer | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2016-02-08 00:45:35 +0100 |
| commit | 9b3d7e015968bdb0a9f1a3642c1047d875d7049f (patch) | |
| tree | a1aee174f4ab78a335b42c3477f4b08825ae1cf1 /src/tbf.cpp | |
| parent | f9940ca8d7d93e143da375c0775e852bd20e4c52 (diff) | |
edge: Disable GPRS/EGPRS mixed mode
Currently the plain 'egprs' command enables EGPRS but doesn't prevent
phones from being served in GPRS mode if they do not support EGPRS.
This involves complex frame allocation implementations in dynamic
mode, especially if 8PSK is being used. This is due to the inability
of non-EGPRS phone to decode 8PSK USF and ES/P altogether. Since
polling has a higher priority than USF, collisions will have to be
prevented by the PCU by never using an GPRS USF if it refers to a FN
that is already being used for polling.
This commit just disables mixed usage by ignoring GPRS-only request
if EGPRS is enabled.
The following VTY command (config-pcu node) is changed:
egprs -> egprs only
Sponsored-by: On-Waves ehf
Diffstat (limited to 'src/tbf.cpp')
| -rw-r--r-- | src/tbf.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/tbf.cpp b/src/tbf.cpp index 1f0576af..db63a08d 100644 --- a/src/tbf.cpp +++ b/src/tbf.cpp @@ -609,6 +609,13 @@ struct gprs_rlcmac_ul_tbf *tbf_alloc_ul_tbf(struct gprs_rlcmac_bts *bts, struct gprs_rlcmac_ul_tbf *tbf; int rc; + if (egprs_ms_class == 0 && bts->egprs_enabled) { + LOGP(DRLCMAC, LOGL_NOTICE, + "Not accepting non-EGPRS phone in EGPRS-only mode\n"); + bts->bts->tbf_failed_egprs_only(); + return NULL; + } + LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF starts here **********\n"); LOGP(DRLCMAC, LOGL_INFO, "Allocating %s TBF: MS_CLASS=%d/%d\n", "UL", ms_class, egprs_ms_class); @@ -679,6 +686,13 @@ struct gprs_rlcmac_dl_tbf *tbf_alloc_dl_tbf(struct gprs_rlcmac_bts *bts, struct gprs_rlcmac_dl_tbf *tbf; int rc; + if (egprs_ms_class == 0 && bts->egprs_enabled) { + LOGP(DRLCMAC, LOGL_NOTICE, + "Not accepting non-EGPRS phone in EGPRS-only mode\n"); + bts->bts->tbf_failed_egprs_only(); + return NULL; + } + LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF starts here **********\n"); LOGP(DRLCMAC, LOGL_INFO, "Allocating %s TBF: MS_CLASS=%d/%d\n", "DL", ms_class, egprs_ms_class); |