diff options
| author | Vadim Yanitskiy <axilirator@gmail.com> | 2020-05-09 17:18:40 +0700 |
|---|---|---|
| committer | laforge <laforge@osmocom.org> | 2020-05-11 20:06:39 +0000 |
| commit | f094b46d1c058c5f77035cb0f8983c57894d3d63 (patch) | |
| tree | a3747c31f77891c02f54d6f21eba3847deb27552 /src/bts.cpp | |
| parent | db9ea55c6e0ccd7fd55be9fed692f20876f5f2a9 (diff) | |
fix egprs_mslot_class_from_ra(): multislot class may not be present
For more details, see 3GPP TS 44.060, table 11.2.5a.2.
Change-Id: Iba0466b29afd26cff317ed4fb6749f8a3079f16a
Signed-off-by: Vadim Yanitskiy <axilirator@gmail.com>
Related: OS#1548
Diffstat (limited to 'src/bts.cpp')
| -rw-r--r-- | src/bts.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/bts.cpp b/src/bts.cpp index 6578e06f..1d073aa8 100644 --- a/src/bts.cpp +++ b/src/bts.cpp @@ -675,7 +675,8 @@ uint32_t BTS::rfn_to_fn(int32_t rfn) */ static inline uint8_t egprs_mslot_class_from_ra(uint16_t ra, bool is_11bit) { - if (is_11bit) + /* EGPRS multislot class is only present in One Phase Access Request */ + if (is_11bit && (ra >> 10) == 0x00) /* .0xx xxx. .... */ return ((ra & 0x3e0) >> 5) + 1; /* set EGPRS multislot class to 0 for 8-bit RACH, since we don't know it yet */ |