R2 band (Scs30or120). The ssb-SubcarrierOffset parameter designates the offset between the first subcarrier of the SSB block and the common block resource. This shift comes from the search for cells by frequency hopping (see Chapter 4 - frequency raster). The dmrs-TypeA-Position parameter indicates the position in the time domain of the first DM-RS reference signal associated with the PDSCH channel (pos2 or pos3, see Chapter 4) The pdcch-ConfigSIBI parameter will allow the mobile to know the position of the PDCCH physical control channel and the area of the common search space. The common search space allows the gNB (gNode B) entity to transmit common information to all the mobiles in the cell. The search space is located inside the CORESET control area. NG-RAN and 5G-NR The pdcch-ConfigSIBI parameter is an 8-bit encoded value: - the first 4 bits (most significant bits) determine the index of the initial CORESET#0 control area. The index allows us to know the size of CORESET#0 in the frequency domain and the number of symbols in the time domain. CORESET#0 carries the Type0-PDCCH common search space; - the last 4 bits (least significant bits) determine the index of search zone 0, allowing the mobile to know the times when it must scan the PDCCH channel (PDCCH monitoring occasion). When selecting the cell, the mobile searches for the presence of the Type0-PDCCH common search space in CORESET#0. The index of the initial CORESET#0 control area corresponds to the row of a table allowing the following information to be stored by the mobile: - the number NR RB CORESET of RB; CORESET - the number of symbols - the offset in number of RBs between the start of the grid and the position in the frequency domain of the search zone. Index MSB Number of RBs Number of symbols Offset (RB) Table 7.1. Extract from Table 13.4 TS 38.213 5G-NR Radio Interface - Bandwidth Part The possible configurations of CORESET#0 for the initial BWP defined from the decoding of the pdcch-ConfigSIBI parameter are described in Tables 13-1 to 13-10 of 