T2 card: LDPC encoder/decoder TB processing

• offload of the LDPC decoding/encoding on the gNB side tested with 1 and multiple UEs (Quectel modules), results similar to develop
• offload of the LDPC encoding on the UE side tested in rfsim

RAN-gNB-N300-Timing-Phytest-LDPC results

• develop and current T2 implementation reports -> https://jenkins-oai.eurecom.fr/job/RAN-gNB-N300-Timing-Phytest-LDPC/4537/artifact/test_results-RAN-gNB-N300-Timing-Phytest-LDPC.html
• new T2 implementation reports -> https://jenkins-oai.eurecom.fr/job/RAN-gNB-N300-Timing-Phytest-LDPC/4587/artifact/test_results-RAN-gNB-N300-Timing-Phytest-LDPC.html
• LDPC decoder, processing time based on nr_ulsim

testcase	develop (10 cores)	current T2 implementation	new T2 implementation
SNR = 30, MCS = 5, 106 PRBs, 1 layer	235 us	49 us	44 us
SNR = 30, MCS = 15, 106 PRBs, 1 layer	266 us	138 us	77 us
SNR = 30, MCS = 25, 106 PRBs, 1 layer	218 us	221 us	109 us
SNR = 30, MCS = 5, 273 PRBs, 1 layer	242 us	117 us	81 us
SNR = 30, MCS = 15, 273 PRBs, 1 layer	347 us	272 us	161 us
SNR = 30, MCS = 25, 273 PRBs, 1 layer	367 us	496 us	241 us
SNR = 30, MCS = 5, 273 PRBs, 2 layers	252 us	223 us	145 us
SNR = 30, MCS = 15, 273 PRBs, 2 layers	499 us	552 us	301 us
SNR = 30, MCS = 25, 273 PRBs, 2 layers	566 us	987 us	468 us

• LDPC encoder, processing time based on nr_dlsim

testcase	develop (8 cores)	current T2 implementation	new T2 implementation
SNR = 30, MCS = 5, 106 PRBs, 1 layer	177 us	42 us	38 us
SNR = 30, MCS = 15, 106 PRBs, 1 layer	233 us	88 us	62 us
SNR = 30, MCS = 25, 106 PRBs, 1 layer	310 us	139 us	86 us
SNR = 30, MCS = 5, 273 PRBs, 1 layer	235 us	94 us	69 us
SNR = 30, MCS = 15, 273 PRBs, 1 layer	371 us	218 us	133 us
SNR = 30, MCS = 25, 273 PRBs, 1 layer	469 us	369 us	201 us
SNR = 30, MCS = 5, 273 PRBs, 2 layers	315 us	178 us	126 us
SNR = 30, MCS = 15, 273 PRBs, 2 layers	513 us	418 us	244 us
SNR = 30, MCS = 25, 273 PRBs, 2 layers	713 us	691 us	368 us