diff options
| author | Ivan Kluchnikov <kluchnikovi@gmail.com> | 2012-02-20 15:04:25 +0400 |
|---|---|---|
| committer | Ivan Kluchnikov <kluchnikovi@gmail.com> | 2012-02-20 15:04:25 +0400 |
| commit | 92ac6379aa0196cbb204c4b193deef2af6e77e53 (patch) | |
| tree | b9468d67baad3a9d98c5a87ab950eb9c14b3c5bb /gsm_rlcmac.cpp | |
| parent | 5c2f9fbfa3e4391ab05279d9e710b1bcd46af3a8 (diff) | |
Added encoder for RLC/MAC downlink data control block.
Diffstat (limited to 'gsm_rlcmac.cpp')
| -rw-r--r-- | gsm_rlcmac.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gsm_rlcmac.cpp b/gsm_rlcmac.cpp index f22ac325..32694fe3 100644 --- a/gsm_rlcmac.cpp +++ b/gsm_rlcmac.cpp @@ -5369,3 +5369,55 @@ void decode_gsm_rlcmac_uplink_data(BitVector * vector, RlcMacUplinkDataBlock_t * return; } } + +void encode_gsm_rlcmac_downlink_data(BitVector * vector, RlcMacDownlinkDataBlock_t * data) +{ + size_t writeIndex = 0; + + if (data->PAYLOAD_TYPE == PAYLOAD_TYPE_DATA) + { + // MAC header + vector->writeField(writeIndex, data->PAYLOAD_TYPE, 2); + vector->writeField(writeIndex, data->RRBP, 2); + vector->writeField(writeIndex, data->SP, 1); + vector->writeField(writeIndex, data->USF, 3); + LOG(INFO) << " PAYLOAD_TYPE = " << (unsigned)(data->PAYLOAD_TYPE); + LOG(INFO) << " RRBP = " << (unsigned)(data->RRBP); + LOG(INFO) << " SP = " << (unsigned)(data->SP); + LOG(INFO) << " USF = " << (unsigned)(data->USF); + // Octet 1 + vector->writeField(writeIndex, data->PR, 2); + vector->writeField(writeIndex, data->TFI, 5); + vector->writeField(writeIndex, data->FBI, 1); + LOG(INFO) << " PR = " << (unsigned)(data->PR); + LOG(INFO) << " TFI = " << (unsigned)(data->TFI); + LOG(INFO) << " FBI = " << (unsigned)(data->FBI); + // Octet 2 + vector->writeField(writeIndex, data->BSN, 7); + vector->writeField(writeIndex, data->E_1, 1); + LOG(INFO) << " BSN = " << (unsigned)(data->BSN); + LOG(INFO) << " E_1 = " << (unsigned)(data->E_1); + // Octet 3 (optional) + if(data->E_1 == 0) + { + unsigned i = 0; + do + { + vector->writeField(writeIndex, data->LENGTH_INDICATOR[i], 6); + vector->writeField(writeIndex, data->M[i], 1); + vector->writeField(writeIndex, data->E[i], 1); + LOG(INFO) << " LENGTH_INDICATOR[" << i << "] = " << (unsigned)(data->LENGTH_INDICATOR[i]); + LOG(INFO) << " M[" << i << "] = " << (unsigned)(data->M[i]); + LOG(INFO) << " E[" << i << "] = " << (unsigned)(data->E[i]); + i++; + } + while ((data->M[i-1] == 1) && (data->E[i-1] == 0)); + } + unsigned dataNumOctets = 23 - writeIndex/8; + for (unsigned i = 0; i < dataNumOctets; i++) + { + vector->writeField(writeIndex, data->RLC_DATA[i], 8); + LOG(INFO) << " DATA[" << i << "] = " << (unsigned)(data->RLC_DATA[i]); + } + } +} |