Relation between "DL Rate Matched Bits Sum" and Reference Signal

Following rules applied to subframes that are not subframe0 and subframe5 (subframe9 without paging)

For normal cyclic shift (7 OFDM symbols in a slot)
antenna port 0 and antenna port 1 occupied REs in 1 PRB for 1 codeword excluding PDCCH and PCFICH is 12 REs
antenna port 2 and antenna port 3 occupied REs in 1 PRB for 1 codeword excluding PDCCH and PCFICH is 8 REs
antenna port 5 occupied REs in 1 PRB for 1 codeword is 12 REs
antenna port 15 and antenna port 16 occupied REs in 1 PRB is 2 REs
antenna port 7 and antenna port 8 occupied REs in 1 PRB is 12 REs

For TM3 2x2 10MHz CFI=1
Number of available REs is 7200
1 codeword with 64QAM modulation, bits rate is 7200 * 6 = 43200 bits/msec
2 codeword with 64QAM modulation, bits rate is 7200 * 6 * 2 = 86400 bits/msec

For TM4 4x2 (4x4) 10MHz CFI=1
Number of available REs is 7200 - 400 = 6800
1 codeword with 64QAM modulation, bits rate is 6800 * 6 = 40800 bits/msec
2 codeword with 64QAM modulation, bits rate is 6800 * 6 * 2 = 81600 bits/msec

For TM9 2x2 10MHz CFI=1
For non-CSI-RS subframes
Number of available REs is 7200 - 600 = 6600
1 codeword with 64QAM modulation, bits rate is 6600 * 6 = 39600 bits/msec
2 codeword with 64QAM modulation, bits rate is 6600 * 6 * 2 = 79200 bits/msec

For CSI-RS subframes
Number of available REs is 7200 - 600 - 100 = 6500
1 codeword with 64QAM modulation, bits rate is 6500 * 6 = 39000 bits/msec
2 codeword with 64QAM modulation, bits rate is 6500 * 6 * 2 = 78000 bits/msec

For TM9 4x2 (4x4) 10MHz CFI=1
For non-CSI-RS subframes
Number of available REs is 7200 - 600 - 400 = 6200
1 codeword with 64QAM moudulation, bits rate is 6200 * 6 = 37200 bits/msec
2 codeword with 64QAM modulation, bits rate is 6200 * 6 * 2 = 74400 bits/msec

For CSI-RS subframes
Number of available REs is 7200 - 800 - 400 - 100 = 6100
1 codeword with 64QAM moudulation, bits rate is 6100 * 6 = 36600 bits/msec
2 codeword with 64QAM modulation, bits rate is 6100 * 6 * 2 = 73200 bits/msec


For subframe0 and subframe5, PBCH, PSS and SSS would take away some REs.

PBCH would occupy extra 72 * 4 - (4 * 6) - (4 * 6)= 240REs
PSS and SSS would occupy extra 72 * 2 = 144REs

Note: for subframe0, TM3 2x2 total available REs for PDSCH is equal to 7200 - 240 - 144 -24 = 6792REs