TY  - JOUR
T1  - Improving Performance of 5G NR PBCH by the Altering Rate Matching Scheme
AU  - Back, Sungyeol 
AU  - Park, Chansoo 
AU  - Oh, Wangrok 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2024
DA  - 2024/1/1
DO  - 10.7840/kics.2024.49.9.1229
KW  - 5G NR
KW  - PBCH
KW  - Rate-Matching
KW  - Frequency Diversity
AB  - In 5G new radio (NR) system, base stations transmit MIB (master information block) which contains important information for user equipments (UEs) including subcarrier spacing and locations of DMRS symbols with physical broadcast channel (PBCH). The MIB which is crucial for UE’s initial access is encoded with polar code and then rate-matched before being mapped onto subcarriers for PBCH. In this paper, we propose simple modification on rate-matching which could improve receiving performance of PBCH by increasing frequency diversity. The proposed scheme improves block error rate performance of PBCH reception without any additional complexity.