5GNR Resource Grid的开发目前基于3GPP Rel-15（2018-03）规范文本。主要参考的标准文本有：38.104， 38.211/212/213/214，38.321，38.331。
5-25号完成以下需求分析：
（1）NR operating band和BW配置（refer to 38.104）
**FR1和FR2的定义，FR1为<6GHz，FR2为>6GHz
**FR1 and FR2 with its duplex mode(FDD/TDD/SUL/SDL)
**N_RB for FR1 and FR2 w.r.t. SCS (240KHz is not supported for PUSCH/PDSCH)
**N_RB per operating band per SCS
Table 5.3.5-1: BS channel bandwidths and SCS per operating band in FR1 <omitted>
**Channel spacing and channel raster shall have no impact
**Synchronization raster and GSCN shall have no impact
**SSB pattern w.r.t. SSB SCS(60KHz is not supported for SSB):
NR n38/n41 corresponding to LTE b38/b41
NR n50 1.5G?
NR n77/n78 3.5G, n79 4.5G
At least we need following parameters:
l nrOpBand: NR operating band excluding SUL and SDL
l nrScs: NR subcarrier spacing for PUSCH/PDSCH (240K not supported)
l TODO: for FDD, nrScs can be different between UL and DL?
l nrSsbScs: NR subcarrier spacing for SSB (60K not supported)
l nrBw: NR bandwidth