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author | Vadim Yanitskiy <vyanitskiy@sysmocom.de> | 2021-01-11 02:33:25 +0100 |
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committer | Vadim Yanitskiy <vyanitskiy@sysmocom.de> | 2021-01-19 17:47:09 +0100 |
commit | 114bf0a8afcaae3c7f76e98aeb84d7ef7da67680 (patch) | |
tree | 74c0ddf1e316cfef6623544cafb3ac0e64dcad10 | |
parent | 1c55e0ffed4fcf4b9af3c49c3e6aae479e1c472d (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 8bc510e..26e1168 100644 --- a/common/chapters/trx_if.adoc +++ b/common/chapters/trx_if.adoc @@ -470,7 +470,9 @@ 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) | +-----------------+---------------------------------------+ @@ -480,6 +482,11 @@ 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. |