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fixeria gerrit-no-reply at lists.osmocom.orgfixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-gsm-manuals/+/23688 ) Change subject: TRXD: clarify modulation specific length of Soft-/Hard-bits ...................................................................... TRXD: clarify modulation specific length of Soft-/Hard-bits Change-Id: Icd807810060372c8f27d81f8a825ea9a5f384c1c Related: SYS#4895, OS#4941, OS#4006 --- M common/chapters/trx_if.adoc 1 file changed, 19 insertions(+), 19 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-gsm-manuals refs/changes/88/23688/1 diff --git a/common/chapters/trx_if.adoc b/common/chapters/trx_if.adoc index f648da4..c6e92ac 100644 --- a/common/chapters/trx_if.adoc +++ b/common/chapters/trx_if.adoc @@ -476,7 +476,7 @@ training sequence is compared to the actual training sequence and the result expressed in centiBels. -Soft-bits: 148 bytes for GSM, 444 bytes for EDGE:: +Soft-bits: 148 x N bytes (variable length defined by modulation type):: Contains the uplink burst. Unlike the downlink bursts, the uplink bursts are designated using the soft-bits notation, so the receiver can indicate its assurance from 0 to -127 that a given bit is 1, and from 0 to +127 that a given @@ -524,23 +524,23 @@ .Modulation and TS set number ---- -+-----------------+---------------------------------------+ -| 7 6 5 4 3 2 1 0 | bit numbers (value range) | -+-----------------+---------------------------------------+ -| . 0 0 X X . . . | GMSK, 4 TS sets (0..3) | -+-----------------+---------------------------------------+ -| . 0 1 0 X . . . | 8-PSK, 2 TS sets (0..1) | -+-----------------+---------------------------------------+ -| . 0 1 1 0 . . . | GMSK, Access Burst (see note) | -+-----------------+---------------------------------------+ -| . 0 1 1 1 . . . | RFU (Reserved for Future Use) | -+-----------------+---------------------------------------+ -| . 1 0 0 X . . . | 16QAM, 2 TS sets (0..1) | -+-----------------+---------------------------------------+ -| . 1 0 1 X . . . | 32QAM, 2 TS sets (0..1) | -+-----------------+---------------------------------------+ -| . 1 1 X X . . . | AQPSK (Downlink), 4 TS sets (0..3) | -+-----------------+---------------------------------------+ ++-----------------+---------------------------------------+--------------+ +| 7 6 5 4 3 2 1 0 | Description | Burst length | ++-----------------+---------------------------------------+--------------+ +| . 0 0 X X . . . | GMSK, 4 TS sets (0..3) | 148 x 1 | ++-----------------+---------------------------------------+--------------+ +| . 0 1 0 X . . . | 8-PSK, 2 TS sets (0..1) | 148 x 3 | ++-----------------+---------------------------------------+--------------+ +| . 0 1 1 0 . . . | GMSK, Access Burst (see note) | 148 x 1 | ++-----------------+---------------------------------------+--------------+ +| . 0 1 1 1 . . . | RFU (Reserved for Future Use) | ------- | ++-----------------+---------------------------------------+--------------+ +| . 1 0 0 X . . . | 16QAM, 2 TS sets (0..1) | 148 x 4 | ++-----------------+---------------------------------------+--------------+ +| . 1 0 1 X . . . | 32QAM, 2 TS sets (0..1) | 148 x 5 | ++-----------------+---------------------------------------+--------------+ +| . 1 1 X X . . . | AQPSK (Downlink), 4 TS sets (0..3) | 148 x 2 | ++-----------------+---------------------------------------+--------------+ ---- NOTE: A radio block on PDCH is carried by the sequence of four Normal Bursts. @@ -589,6 +589,6 @@ in dB. The absolute value is set on the control interface, so the resulting power is calculated as follows: `full_scale - (absolute_red + relative_red)`. -Hard-bits: 148 bytes for GSM, 444 bytes for EDGE:: +Hard-bits: 148 x N bytes (variable length defined by modulation type):: Contains the downlink burst. Each hard-bit (1 or 0) of the burst is represented using one byte (0x01 or 0x00 respectively). -- To view, visit https://gerrit.osmocom.org/c/osmo-gsm-manuals/+/23688 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-gsm-manuals Gerrit-Branch: master Gerrit-Change-Id: Icd807810060372c8f27d81f8a825ea9a5f384c1c Gerrit-Change-Number: 23688 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy at sysmocom.de> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210409/6f1d9fb7/attachment.htm>