November 2024 - gerrit-log - lists.osmocom.org

[M] Change in osmocom-bb[master]: trxcon/l1sched: replace old API with sched_tchh_ul_facch_map[]

by falconia

Attention is currently required from: fixeria. falconia has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/osmocom-bb/+/38725?usp=email ) Change subject: trxcon/l1sched: replace old API with sched_tchh_ul_facch_map[] ...................................................................... Patch Set 1: Code-Review+2 -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/38725?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I63ae94bc2edd528b1f9fd2c505b39a43ba1742fd Gerrit-Change-Number: 38725 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: falconia <falcon(a)freecalypso.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Fri, 08 Nov 2024 23:14:50 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

7 months, 2 weeks

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[S] Change in osmocom-bb[master]: trxcon/l1sched: fix decoding of DL FACCH/H for TCH/H4.8 and TCH/H2.4

by falconia

Attention is currently required from: fixeria. falconia has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/osmocom-bb/+/38724?usp=email ) Change subject: trxcon/l1sched: fix decoding of DL FACCH/H for TCH/H4.8 and TCH/H2.4 ...................................................................... Patch Set 1: Code-Review+2 -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/38724?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I17df806185dc620999c4c2b9ed83a18cc8b2e0bf Gerrit-Change-Number: 38724 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: falconia <falcon(a)freecalypso.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Fri, 08 Nov 2024 23:08:51 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

7 months, 2 weeks

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[S] Change in osmo-bts[master]: osmo-bts-trx: fix scheduling of DL FACCH/H for TCH/H4.8 and TCH/H2.4

by pespin

Attention is currently required from: fixeria. pespin has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/osmo-bts/+/38723?usp=email ) Change subject: osmo-bts-trx: fix scheduling of DL FACCH/H for TCH/H4.8 and TCH/H2.4 ...................................................................... Patch Set 1: Code-Review+2 -- To view, visit https://gerrit.osmocom.org/c/osmo-bts/+/38723?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmo-bts Gerrit-Branch: master Gerrit-Change-Id: Idb753fa5c87dc79e9ad19e550680de6f462eed69 Gerrit-Change-Number: 38723 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: falconia <falcon(a)freecalypso.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Fri, 08 Nov 2024 22:47:54 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

7 months, 2 weeks

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[M] Change in osmocom-bb[master]: trxcon/l1sched: replace old API with sched_tchh_ul_facch_map[]

by pespin

Attention is currently required from: falconia, fixeria. pespin has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/osmocom-bb/+/38725?usp=email ) Change subject: trxcon/l1sched: replace old API with sched_tchh_ul_facch_map[] ...................................................................... Patch Set 1: Code-Review+1 -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/38725?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I63ae94bc2edd528b1f9fd2c505b39a43ba1742fd Gerrit-Change-Number: 38725 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: falconia <falcon(a)freecalypso.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: falconia <falcon(a)freecalypso.org> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Fri, 08 Nov 2024 22:38:30 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

7 months, 2 weeks

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[S] Change in osmocom-bb[master]: trxcon/l1sched: fix decoding of DL FACCH/H for TCH/H4.8 and TCH/H2.4

by pespin

Attention is currently required from: falconia, fixeria. pespin has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/osmocom-bb/+/38724?usp=email ) Change subject: trxcon/l1sched: fix decoding of DL FACCH/H for TCH/H4.8 and TCH/H2.4 ...................................................................... Patch Set 1: Code-Review+1 -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/38724?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I17df806185dc620999c4c2b9ed83a18cc8b2e0bf Gerrit-Change-Number: 38724 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: falconia <falcon(a)freecalypso.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: falconia <falcon(a)freecalypso.org> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Fri, 08 Nov 2024 22:37:46 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

7 months, 2 weeks

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[M] Change in osmo-ttcn3-hacks[master]: bts: add TC_data_facch_*: test FACCH/[FH] on data channels

by pespin

Attention is currently required from: fixeria, osmith. pespin has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/38696?usp=email ) Change subject: bts: add TC_data_facch_*: test FACCH/[FH] on data channels ...................................................................... Patch Set 5: Code-Review+1 -- To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/38696?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmo-ttcn3-hacks Gerrit-Branch: master Gerrit-Change-Id: I2098ccd651fc2a81f62e70be64af386ab0ca6148 Gerrit-Change-Number: 38696 Gerrit-PatchSet: 5 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: osmith <osmith(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Fri, 08 Nov 2024 22:35:55 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

7 months, 2 weeks

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[S] Change in osmo-bts[master]: osmo-bts-trx: fix scheduling of DL FACCH/H for TCH/H4.8 and TCH/H2.4

by falconia

Attention is currently required from: fixeria. falconia has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/osmo-bts/+/38723?usp=email ) Change subject: osmo-bts-trx: fix scheduling of DL FACCH/H for TCH/H4.8 and TCH/H2.4 ...................................................................... Patch Set 1: Code-Review+1 -- To view, visit https://gerrit.osmocom.org/c/osmo-bts/+/38723?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmo-bts Gerrit-Branch: master Gerrit-Change-Id: Idb753fa5c87dc79e9ad19e550680de6f462eed69 Gerrit-Change-Number: 38723 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: falconia <falcon(a)freecalypso.org> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Fri, 08 Nov 2024 21:50:01 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

7 months, 2 weeks

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[M] Change in osmocom-bb[master]: trxcon/l1sched: replace old API with sched_tchh_ul_facch_map[]

by fixeria

fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmocom-bb/+/38725?usp=email ) Change subject: trxcon/l1sched: replace old API with sched_tchh_ul_facch_map[] ...................................................................... trxcon/l1sched: replace old API with sched_tchh_ul_facch_map[] The new UL FACCH/H mapping was the only missing bit that finally allows us to remove the old API which predates the lookup tables. Change-Id: I63ae94bc2edd528b1f9fd2c505b39a43ba1742fd --- M src/host/trxcon/include/osmocom/bb/l1sched/l1sched.h M src/host/trxcon/src/sched_lchan_tchh.c 2 files changed, 16 insertions(+), 119 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/25/38725/1 diff --git a/src/host/trxcon/include/osmocom/bb/l1sched/l1sched.h b/src/host/trxcon/include/osmocom/bb/l1sched/l1sched.h index 6c5a31e..39400cf 100644 --- a/src/host/trxcon/include/osmocom/bb/l1sched/l1sched.h +++ b/src/host/trxcon/include/osmocom/bb/l1sched/l1sched.h @@ -390,20 +390,6 @@ const char *l1sched_burst_mask2str(const uint32_t *mask, int bits); -/* Interleaved TCH/H block TDMA frame mapping */ -bool l1sched_tchh_block_map_fn(enum l1sched_lchan_type chan, - uint32_t fn, bool ul, bool facch, bool start); - -#define l1sched_tchh_traffic_start(chan, fn, ul) \ - l1sched_tchh_block_map_fn(chan, fn, ul, 0, 1) -#define l1sched_tchh_traffic_end(chan, fn, ul) \ - l1sched_tchh_block_map_fn(chan, fn, ul, 0, 0) - -#define l1sched_tchh_facch_start(chan, fn, ul) \ - l1sched_tchh_block_map_fn(chan, fn, ul, 1, 1) -#define l1sched_tchh_facch_end(chan, fn, ul) \ - l1sched_tchh_block_map_fn(chan, fn, ul, 1, 0) - /* Measurement history */ void l1sched_lchan_meas_push(struct l1sched_lchan_state *lchan, const struct l1sched_burst_ind *bi); diff --git a/src/host/trxcon/src/sched_lchan_tchh.c b/src/host/trxcon/src/sched_lchan_tchh.c index ecd9847..eff36fd 100644 --- a/src/host/trxcon/src/sched_lchan_tchh.c +++ b/src/host/trxcon/src/sched_lchan_tchh.c @@ -80,50 +80,8 @@ [18] = 1, /* TCH/H(1): a=18 */ }; -static const uint8_t tch_h0_traffic_block_map[3][4] = { - /* B0(0,2,4,6), B1(4,6,8,10), B2(8,10,0,2) */ - { 0, 2, 4, 6 }, - { 4, 6, 8, 10 }, - { 8, 10, 0, 2 }, -}; - -static const uint8_t tch_h1_traffic_block_map[3][4] = { - /* B0(1,3,5,7), B1(5,7,9,11), B2(9,11,1,3) */ - { 1, 3, 5, 7 }, - { 5, 7, 9, 11 }, - { 9, 11, 1, 3 }, -}; - -static const uint8_t tch_h0_dl_facch_block_map[3][6] = { - /* B0(4,6,8,10,13,15), B1(13,15,17,19,21,23), B2(21,23,0,2,4,6) */ - { 4, 6, 8, 10, 13, 15 }, - { 13, 15, 17, 19, 21, 23 }, - { 21, 23, 0, 2, 4, 6 }, -}; - -static const uint8_t tch_h0_ul_facch_block_map[3][6] = { - /* B0(0,2,4,6,8,10), B1(8,10,13,15,17,19), B2(17,19,21,23,0,2) */ - { 0, 2, 4, 6, 8, 10 }, - { 8, 10, 13, 15, 17, 19 }, - { 17, 19, 21, 23, 0, 2 }, -}; - -static const uint8_t tch_h1_dl_facch_block_map[3][6] = { - /* B0(5,7,9,11,14,16), B1(14,16,18,20,22,24), B2(22,24,1,3,5,7) */ - { 5, 7, 9, 11, 14, 16 }, - { 14, 16, 18, 20, 22, 24 }, - { 22, 24, 1, 3, 5, 7 }, -}; - -const uint8_t tch_h1_ul_facch_block_map[3][6] = { - /* B0(1,3,5,7,9,11), B1(9,11,14,16,18,20), B2(18,20,22,24,1,3) */ - { 1, 3, 5, 7, 9, 11 }, - { 9, 11, 14, 16, 18, 20 }, - { 18, 20, 22, 24, 1, 3 }, -}; - -/* FACCH/H channel mapping for Downlink (see 3GPP TS 45.002, table 1). - * This mapping is valid for both FACCH/H(0) and FACCH/H(1). +/* FACCH/H channel mappings for DL and UL (see 3GPP TS 45.002, table 1). + * These mappings are valid for both FACCH/H(0) and FACCH/H(1). * TDMA frame number of burst 'f' is used as the table index. */ static const uint8_t sched_tchh_dl_facch_map[26] = { [15] = 1, /* FACCH/H(0): B0(4,6,8,10,13,15) */ @@ -134,6 +92,16 @@ [7] = 1, /* FACCH/H(1): B2(22,24,1,3,5,7) */ }; +/* TDMA frame number of burst 'a' is used as the table index. */ +static const uint8_t sched_tchh_ul_facch_map[26] = { + [0] = 1, /* FACCH/H(0): B0(0,2,4,6,8,10) */ + [1] = 1, /* FACCH/H(1): B0(1,3,5,7,9,11) */ + [8] = 1, /* FACCH/H(0): B1(8,10,13,15,17,19) */ + [9] = 1, /* FACCH/H(1): B1(9,11,14,16,18,20) */ + [17] = 1, /* FACCH/H(0): B2(17,19,21,23,0,2) */ + [18] = 1, /* FACCH/H(1): B2(18,20,22,24,1,3) */ +}; + /* 3GPP TS 45.002, table 2 in clause 7: Mapping tables for TCH/H2.4 and TCH/H4.8. * * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ @@ -169,63 +137,6 @@ [11] = 1, /* TCH/H(1): B2(18 ... 11) */ }; -/** - * Can a TCH/H block transmission be initiated / finished - * on a given frame number and a given channel type? - * - * See GSM 05.02, clause 7, table 1 - * - * @param chan channel type (L1SCHED_TCHH_0 or L1SCHED_TCHH_1) - * @param fn the current frame number - * @param ul Uplink or Downlink? - * @param facch FACCH/H or traffic? - * @param start init or end of transmission? - * @return true (yes) or false (no) - */ -bool l1sched_tchh_block_map_fn(enum l1sched_lchan_type chan, - uint32_t fn, bool ul, bool facch, bool start) -{ - uint8_t fn_mf; - int i = 0; - - /* Just to be sure */ - OSMO_ASSERT(chan == L1SCHED_TCHH_0 || chan == L1SCHED_TCHH_1); - - /* Calculate a modulo */ - fn_mf = facch ? (fn % 26) : (fn % 13); - -#define MAP_GET_POS(map) \ - (start ? 0 : ARRAY_SIZE(map[i]) - 1) - -#define BLOCK_MAP_FN(map) \ - do { \ - if (map[i][MAP_GET_POS(map)] == fn_mf) \ - return true; \ - } while (++i < ARRAY_SIZE(map)) - - /* Choose a proper block map */ - if (facch) { - if (ul) { - if (chan == L1SCHED_TCHH_0) - BLOCK_MAP_FN(tch_h0_ul_facch_block_map); - else - BLOCK_MAP_FN(tch_h1_ul_facch_block_map); - } else { - if (chan == L1SCHED_TCHH_0) - BLOCK_MAP_FN(tch_h0_dl_facch_block_map); - else - BLOCK_MAP_FN(tch_h1_dl_facch_block_map); - } - } else { - if (chan == L1SCHED_TCHH_0) - BLOCK_MAP_FN(tch_h0_traffic_block_map); - else - BLOCK_MAP_FN(tch_h1_traffic_block_map); - } - - return false; -} - static int decode_hr_facch(struct l1sched_lchan_state *lchan) { uint8_t data[GSM_MACBLOCK_LEN]; @@ -278,7 +189,7 @@ /* Align reception of the first FACCH/H frame */ if (lchan->tch_mode == GSM48_CMODE_SIGN) { - if (!l1sched_tchh_facch_start(lchan->type, bi->fn, 0)) + if (!sched_tchh_dl_facch_map[bi->fn % 26]) return 0; } } @@ -451,7 +362,7 @@ /* Align transmission of the first frame */ switch (lchan->tch_mode) { case GSM48_CMODE_SIGN: - if (!l1sched_tchh_facch_start(lchan->type, br->fn, 1)) + if (!sched_tchh_ul_facch_map[br->fn % 26]) return 0; break; case GSM48_CMODE_DATA_6k0: @@ -485,7 +396,7 @@ /* dequeue a pair of TCH and FACCH frames */ msg_tch = l1sched_lchan_prim_dequeue_tch(lchan, false); - if (l1sched_tchh_facch_start(lchan->type, br->fn, true)) + if (sched_tchh_ul_facch_map[br->fn % 26]) msg_facch = l1sched_lchan_prim_dequeue_tch(lchan, true); else msg_facch = NULL; @@ -495,7 +406,7 @@ /* populate the buffer with bursts */ switch (lchan->tch_mode) { case GSM48_CMODE_SIGN: - if (!l1sched_tchh_facch_start(lchan->type, br->fn, 1)) + if (!sched_tchh_ul_facch_map[br->fn % 26]) goto send_burst; /* XXX: should not happen */ if (msg == NULL) msg = l1sched_lchan_prim_dummy_lapdm(lchan); -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/38725?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I63ae94bc2edd528b1f9fd2c505b39a43ba1742fd Gerrit-Change-Number: 38725 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de>

7 months, 2 weeks

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[S] Change in osmocom-bb[master]: trxcon/l1sched: fix decoding of DL FACCH/H for TCH/H4.8 and TCH/H2.4

by fixeria

fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmocom-bb/+/38724?usp=email ) Change subject: trxcon/l1sched: fix decoding of DL FACCH/H for TCH/H4.8 and TCH/H2.4 ...................................................................... trxcon/l1sched: fix decoding of DL FACCH/H for TCH/H4.8 and TCH/H2.4 The mapping sched_tchh_dl_csd_map[] is valid for DL TCH/H4.8 and TCH/H2.4, but not for DL FACCH/H. We need to use a separate lookup table sched_tchh_dl_facch_map[] for DL FACCH/H. Change-Id: I17df806185dc620999c4c2b9ed83a18cc8b2e0bf Fixes: a93785bf4 ("trxcon/l1sched: implement CSD scheduling support") Related: OS#4396, OS#6618 --- M src/host/trxcon/src/sched_lchan_tchh.c 1 file changed, 8 insertions(+), 4 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/24/38724/1 diff --git a/src/host/trxcon/src/sched_lchan_tchh.c b/src/host/trxcon/src/sched_lchan_tchh.c index d684976..ecd9847 100644 --- a/src/host/trxcon/src/sched_lchan_tchh.c +++ b/src/host/trxcon/src/sched_lchan_tchh.c @@ -310,8 +310,6 @@ /* Data (CSD) is interleaved over 22 bursts */ if ((*mask & 0x3fffff) != 0x3fffff) return 0; - if (!sched_tchh_dl_csd_map[bi->fn % 26]) - return 0; /* CSD: skip decoding attempt, need 2 more bursts */ break; default: /* Speech is interleaved over 4 bursts */ @@ -372,14 +370,20 @@ /* CSD (TCH/H4.8): 6.0 kbit/s radio interface rate */ case GSM48_CMODE_DATA_6k0: /* FACCH/H does not steal TCH/H4.8 frames, but only disturbs some bits */ - decode_hr_facch(lchan); + if (sched_tchh_dl_facch_map[bi->fn % 26]) + decode_hr_facch(lchan); + if (!sched_tchh_dl_csd_map[bi->fn % 26]) + return 0; rc = gsm0503_tch_hr48_decode(&tch_data[0], BUFPOS(bursts_p, 0), &n_errors, &n_bits_total); break; /* CSD (TCH/H2.4): 3.6 kbit/s radio interface rate */ case GSM48_CMODE_DATA_3k6: /* FACCH/H does not steal TCH/H2.4 frames, but only disturbs some bits */ - decode_hr_facch(lchan); + if (sched_tchh_dl_facch_map[bi->fn % 26]) + decode_hr_facch(lchan); + if (!sched_tchh_dl_csd_map[bi->fn % 26]) + return 0; rc = gsm0503_tch_hr24_decode(&tch_data[0], BUFPOS(bursts_p, 0), &n_errors, &n_bits_total); break; -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/38724?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I17df806185dc620999c4c2b9ed83a18cc8b2e0bf Gerrit-Change-Number: 38724 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de>

7 months, 2 weeks

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[S] Change in osmo-bts[master]: osmo-bts-trx: fix scheduling of DL FACCH/H for TCH/H4.8 and TCH/H2.4

by fixeria

fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bts/+/38723?usp=email ) Change subject: osmo-bts-trx: fix scheduling of DL FACCH/H for TCH/H4.8 and TCH/H2.4 ...................................................................... osmo-bts-trx: fix scheduling of DL FACCH/H for TCH/H4.8 and TCH/H2.4 The mapping sched_tchh_dl_csd_map[] is valid for DL TCH/H4.8 and TCH/H2.4, but not for DL FACCH/H. We already use a separate lookup table sched_tchh_dl_facch_map[] when sending RTS.ind for DL FACCH/H, so no additional checks are added in this commit. Change-Id: Idb753fa5c87dc79e9ad19e550680de6f462eed69 Fixes: 95407f3f6 ("osmo-bts-trx: implement CSD scheduling support") Related: OS#1572, OS#6618 --- M src/osmo-bts-trx/sched_lchan_tchh.c 1 file changed, 14 insertions(+), 12 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/23/38723/1 diff --git a/src/osmo-bts-trx/sched_lchan_tchh.c b/src/osmo-bts-trx/sched_lchan_tchh.c index 6027072..01ac155 100644 --- a/src/osmo-bts-trx/sched_lchan_tchh.c +++ b/src/osmo-bts-trx/sched_lchan_tchh.c @@ -420,12 +420,6 @@ memmove(BUFPOS(bursts_p, 0), BUFPOS(bursts_p, 2), 20 * BPLEN); memset(BUFPOS(bursts_p, 20), 0, 2 * BPLEN); - /* for half-rate CSD we dequeue every 4th burst */ - if (chan_state->rsl_cmode == RSL_CMOD_SPD_DATA) { - if (!sched_tchh_dl_csd_map[br->fn % 26]) - goto send_burst; - } - /* dequeue a TCH and/or a FACCH message to be transmitted */ tch_dl_dequeue(l1ts, br, &msg_tch, &msg_facch); @@ -529,17 +523,25 @@ break; /* CSD (TCH/H4.8): 6.0 kbit/s radio interface rate */ case GSM48_CMODE_DATA_6k0: - if (msg_tch == NULL) - msg_tch = tch_dummy_msgb(4 * 60, 0x01); - gsm0503_tch_hr48_encode(BUFPOS(bursts_p, 0), msgb_l2(msg_tch)); + /* for half-rate CSD we run the encoder every 4th burst (like for TCH/F) + * because the interleaving is done as specified for the TCH/F9.6 */ + if (sched_tchh_dl_csd_map[br->fn % 26]) { + if (msg_tch == NULL) + msg_tch = tch_dummy_msgb(4 * 60, 0x01); + gsm0503_tch_hr48_encode(BUFPOS(bursts_p, 0), msgb_l2(msg_tch)); + } if (msg_facch != NULL) gsm0503_tch_hr_facch_encode(BUFPOS(bursts_p, 0), msgb_l2(msg_facch)); break; /* CSD (TCH/H2.4): 3.6 kbit/s radio interface rate */ case GSM48_CMODE_DATA_3k6: - if (msg_tch == NULL) - msg_tch = tch_dummy_msgb(4 * 36, 0x01); - gsm0503_tch_hr24_encode(BUFPOS(bursts_p, 0), msgb_l2(msg_tch)); + /* for half-rate CSD we run the encoder every 4th burst (like for TCH/F) + * because the interleaving is done as specified for the TCH/F9.6 */ + if (sched_tchh_dl_csd_map[br->fn % 26]) { + if (msg_tch == NULL) + msg_tch = tch_dummy_msgb(4 * 36, 0x01); + gsm0503_tch_hr24_encode(BUFPOS(bursts_p, 0), msgb_l2(msg_tch)); + } if (msg_facch != NULL) gsm0503_tch_hr_facch_encode(BUFPOS(bursts_p, 0), msgb_l2(msg_facch)); break; -- To view, visit https://gerrit.osmocom.org/c/osmo-bts/+/38723?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: osmo-bts Gerrit-Branch: master Gerrit-Change-Id: Idb753fa5c87dc79e9ad19e550680de6f462eed69 Gerrit-Change-Number: 38723 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de>

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gerrit-log November 2024