diff options
| author | Vadim Yanitskiy <vyanitskiy@sysmocom.de> | 2021-01-11 02:33:25 +0100 |
|---|---|---|
| committer | Vadim Yanitskiy <vyanitskiy@sysmocom.de> | 2021-02-12 00:07:48 +0100 |
| commit | ede6098381ed8d2130defe76d829a1230d3297e8 (patch) | |
| tree | 920dca88c0f81788391a88cbe4daeaa1746c4874 | |
| parent | f14fb4b949860d81c732cbc6d3e1f60dbb2ecb45 (diff) | |
TRXD: reserve a combination for Access Bursts on PACCH
| -rw-r--r-- | common/chapters/trx_if.adoc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/common/chapters/trx_if.adoc b/common/chapters/trx_if.adoc index b223151..ce90948 100644 --- a/common/chapters/trx_if.adoc +++ b/common/chapters/trx_if.adoc @@ -482,7 +482,9 @@ also have several synchronization sequences. +-----------------+---------------------------------------+ | . 0 1 0 X . . . | 8-PSK, 2 TS sets (0..1) | +-----------------+---------------------------------------+ -| . 0 1 1 X . . . | RFU (Reserved for Future Use) | +| . 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) | +-----------------+---------------------------------------+ @@ -492,6 +494,11 @@ also have several synchronization sequences. +-----------------+---------------------------------------+ ---- +NOTE: A radio block on PDCH is carried by the sequence of four Normal Bursts. +The one exception is a special radio block occasionally used on the Uplink +consisting of a sequence of four Access Bursts (see 3GPP TS 44.060). The +transceiver shall use `0110` as the modulation type to indicate that. + Training Sequence Code:: The Training Sequence Code used to decode an Access or a Synchronization burst. This field hence doesn't apply for Normal bursts. |