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
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@ -675,7 +675,8 @@ uint32_t BTS::rfn_to_fn(int32_t rfn)
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*/
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static inline uint8_t egprs_mslot_class_from_ra(uint16_t ra, bool is_11bit)
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{
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if (is_11bit)
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/* EGPRS multislot class is only present in One Phase Access Request */
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if (is_11bit && (ra >> 10) == 0x00) /* .0xx xxx. .... */
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return ((ra & 0x3e0) >> 5) + 1;
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/* set EGPRS multislot class to 0 for 8-bit RACH, since we don't know it yet */
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