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measurement.c: Fix sdcch4_meas_rep_fn102 / sdcch8_meas_rep_fn102 

Since Change-Id: I23fba50f48415314da40cf5bf86fce2ed3e66af6 we were not
reporting measurements for SDCCH channel types due to the wrong
encoding of the sdcch{4,8}_meas_rep_fn102 table.

Let's fix the table by encoding the needed information:

 "What is the modulo-102 remainder of the first burst of the last block
  before fn%102 reaches 37?" (SDCCH/4)

 "What is the modulo-102 remainder of the first burst of the last block
  before fn%102 reaches 12?" (SDCCH/8)

The TS 45.002 Clause 7 tables have to be consulted carefully to
determine this information.

Change-Id: Icf02354872670126ab3297b787b216981ca6c309
Related: OS#2965
This commit is contained in:
Harald Welte 2018-02-24 00:20:19 +01:00
parent 989f779cfc
commit de3b4a248e
1 changed files with 14 additions and 15 deletions
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29
src/common/measurement.c
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@ -64,25 +64,24 @@ static const uint8_t tchh1_meas_rep_fn104[] = {
* SDCCH/4 37 to 36
*/
/* Added interleave offset to Meas period end Fn which
* would reduce the Meas Res msg load at Abis */
/* FN of the first burst whose block completes before reaching fn%102=11 */
static const uint8_t sdcch8_meas_rep_fn102[] = {
[0] = 11 + 7,
[1] = 11 + 11,
[2] = 11 + 15,
[3] = 11 + 19,
[4] = 11 + 23,
[5] = 11 + 27,
[6] = 11 + 31,
[7] = 11 + 35
[0] = 66, /* 15(SDCCH), 47(SACCH), 66(SDCCH) */
[1] = 70, /* 19(SDCCH), 51(SACCH), 70(SDCCH) */
[2] = 74, /* 23(SDCCH), 55(SACCH), 74(SDCCH) */
[3] = 78, /* 27(SDCCH), 59(SACCH), 78(SDCCH) */
[4] = 98, /* 31(SDCCH), 98(SACCH), 82(SDCCH) */
[5] = 0, /* 35(SDCCH), 0(SACCH), 86(SDCCH) */
[6] = 4, /* 39(SDCCH), 4(SACCH), 90(SDCCH) */
[7] = 8, /* 43(SDCCH), 8(SACCH), 94(SDCCH) */
};
/* FN of the first burst whose block completes before reaching fn%102=37 */
static const uint8_t sdcch4_meas_rep_fn102[] = {
[0] = 36 + 4,
[1] = 36 + 8,
[2] = 36 + 14,
[3] = 36 + 18
[0] = 88, /* 37(SDCCH), 57(SACCH), 88(SDCCH) */
[1] = 92, /* 41(SDCCH), 61(SACCH), 92(SDCCH) */
[2] = 6, /* 6(SACCH), 47(SDCCH), 98(SDCCH) */
[3] = 10 /* 10(SACCH), 0(SDCCH), 51(SDCCH) */
};
/* Note: The reporting of the measurement results is done via the SACCH channel.