Skip to content
TechSpec
  • Foreword
  • 1 Scope
  • 2 References
  • 3 Definitions, symbols and abbreviations
  • 4 Mapping to physical channels
  • 5 General procedures
  • 5.1 CRC calculation
  • 5.2 Code block segmentation and code block CRC attachment
  • 5.3 Channel coding
    • 5.3 Channel coding
    • 5.3.1 Polar coding
    • 5.3.2 Low density parity check coding
    • 5.3.3 Channel coding of small block lengths
  • 5.4 Rate matching
  • 5.5 Code block concatenation
  • 6 Uplink transport channels and control information
    • 6.1 Random access channel
    • 6.2.1 Transport block CRC attachment
    • 6.2.2 LDPC base graph selection
    • 6.2.3 Code block segmentation and code block CRC attachment
    • 6.2.4 Channel coding of UL-SCH
    • 6.2.5 Rate matching
    • 6.2.6 Code block concatenation
    • 6.2.7 Data and control multiplexing
    • 6.3.1 Uplink control information on PUCCH
    • 6.3.2 Uplink control information on PUSCH
    • 6.2 Uplink shared channel
      • 6.3 Uplink control information
      • 7 Downlink transport channels and control information
        • 7.1 Broadcast channel
        • 7.2 Downlink shared channel and paging channel
        • 7.3 Downlink control information
          • 7.3 Downlink control information
          • 7.3.1 DCI formats
          • 7.3.2 CRC attachment
          • 7.3.3 Channel coding
          • 7.3.4 Rate matching
      • 8 Sidelink transport channels and control information
      • 5 General procedures

        6.1 Random access channel

        38.2123GPPMultiplexing and channel codingNRRelease 17TS

        Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

        The sequence index for the random access channel is received from higher layers and is processed according to [4, TS 38.211].