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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has uploaded this change for review. ( https://gerrit.osmocom.org/14155 Change subject: RSL: Fix logic about fixed/dynamic MS power control in MS POWER COMMAND ...................................................................... RSL: Fix logic about fixed/dynamic MS power control in MS POWER COMMAND The spec is quite clear: If the MS Power Parameters IE is present, then the BTS shall perform autonomous MS power control. If it's absent, then the MS power shall be fied. Let's adjust our code accordingly. Change-Id: Ie43a1fc9cc658677c8c945ae82d03b7bffbe52d5 Related: OS#1622 --- M src/common/rsl.c 1 file changed, 21 insertions(+), 6 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/55/14155/1 diff --git a/src/common/rsl.c b/src/common/rsl.c index e6fbe6f..e6fd8b9 100644 --- a/src/common/rsl.c +++ b/src/common/rsl.c @@ -1554,19 +1554,34 @@ /* 8.4.15 MS POWER CONTROL */ static int rsl_rx_ms_pwr_ctrl(struct msgb *msg) { + struct abis_rsl_dchan_hdr *dch = msgb_l2(msg); struct gsm_lchan *lchan = msg->lchan; struct tlv_parsed tp; + uint8_t pwr; rsl_tlv_parse(&tp, msgb_l3(msg), msgb_l3len(msg)); - if (TLVP_PRES_LEN(&tp, RSL_IE_MS_POWER, 1)) { - uint8_t pwr = *TLVP_VAL(&tp, RSL_IE_MS_POWER) & 0x1F; - lchan->ms_power_ctrl.fixed = 1; - lchan->ms_power_ctrl.current = pwr; - LOGPLCHAN(lchan, DRSL, LOGL_NOTICE, "forcing power to %d\n", lchan->ms_power_ctrl.current); - bts_model_adjst_ms_pwr(lchan); + /* 9.3.13 MS Power (M) */ + if (!TLVP_PRES_LEN(&tp, RSL_IE_MS_POWER, 1)) + return rsl_tx_error_report(msg->trx, RSL_ERR_MAND_IE_ERROR, &dch->chan_nr, NULL, msg); + + pwr = *TLVP_VAL(&tp, RSL_IE_MS_POWER) & 0x1F; + lchan->ms_power_ctrl.current = pwr; + + LOGPLCHAN(lchan, DRSL, LOGL_NOTICE, "forcing power to %d\n", lchan->ms_power_ctrl.current); + + /* 9.3.31 MS Power Parameters (O) */ + if (TLVP_PRESENT(&tp, RSL_IE_MS_POWER_PARAM)) + lchan->ms_power_ctrl.fixed = 0; + else { + /* Spec explicitly states BTS should only perform + * autonomous MS power control loop in BTS if 'MS Power + * Parameters' IE is present! */ + lchan->ms_power_ctrl.fixed = 1; } + bts_model_adjst_ms_pwr(lchan); + return 0; } -- To view, visit https://gerrit.osmocom.org/14155 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bts Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Ie43a1fc9cc658677c8c945ae82d03b7bffbe52d5 Gerrit-Change-Number: 14155 Gerrit-PatchSet: 1 Gerrit-Owner: Harald Welte <laforge at gnumonks.org> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20190524/2b3d5269/attachment.htm>