diff --git a/doc/FEATURE_SET.md b/doc/FEATURE_SET.md index d660a875a7a1ae532922a229e13ee4e0b7840552..38eaeac4330e402afb9481504d0efa0b471e7f1a 100644 --- a/doc/FEATURE_SET.md +++ b/doc/FEATURE_SET.md @@ -256,10 +256,10 @@ The following features are valid for the gNB and the 5G-NR UE. * Static TDD, * FDD * Normal CP -* 30 kHz subcarrier spacing +* Subcarrier spacings: 15 and 30kHz (FR1), 120kHz (FR2) * Bandwidths: 10, 20, 40, 80, 100MHz (273 Physical Resource Blocks) * Intermediate downlink and uplink frequencies to interface with IF equipment -* Single antenna port (single beam) +* Procedures for 2-layer DL MIMO * Slot format: 14 OFDM symbols in UL or DL * Highly efficient 3GPP compliant LDPC encoder and decoder (BG1 and BG2 supported) * Highly efficient 3GPP compliant polar encoder and decoder @@ -269,7 +269,7 @@ The following features are valid for the gNB and the 5G-NR UE. ## gNB PHY Layer ## -* 30KHz SCS for FR1 and 120 KHz SCS for FR2 +* 15kHz and 30kHz SCS for FR1 and 120kHz SCS for FR2 * Generation of NR-PSS/NR-SSS * NR-PBCH supports multiple SSBs and flexible periodicity * Generation of NR-PDCCH (including generation of DCI, polar encoding, scrambling, modulation, RB mapping, etc) @@ -289,7 +289,7 @@ The following features are valid for the gNB and the 5G-NR UE. - DMRS configuration type 1 and 2 - Single and multiple DMRS symbols - PTRS support - - Support for 1 RX antenna + - Support for 2 RX antenna - Support for 1 layer * NR-PUCCH - Format 0 (2 bits, for ACK/NACK and SR) @@ -429,11 +429,13 @@ The following features are valid for the gNB and the 5G-NR UE. ## NR UE PHY Layer ## * Initial synchronization + - the UE needs to know the position in frequency of the SSBs (via command line parameter in SA) * Time tracking based on PBCH DMRS -* Frequency offset estimation -* 30KHz SCS for FR1 and 120 KHz SCS for FR2 +* Frequency offset estimation based on PSS and SSS +* 15kHz and 30kHz SCS for FR1 and 120 kHz SCS for FR2 * Reception of NR-PSS/NR-SSS * NR-PBCH supports multiple SSBs and flexible periodicity + - RSRP measurement for the strongest SSB * Reception of NR-PDCCH (including reception of DCI, polar decoding, de-scrambling, de-modulation, RB de-mapping, etc) - common search space configured by MIB - user-specific search space configured by RRC @@ -446,32 +448,31 @@ The following features are valid for the gNB and the 5G-NR UE. - Support for 1, 2 and 4 RX antennas - Support for up to 2 layers (currently limited to DMRS configuration type 2) * Measurements based on NR-CSIRS - - RI, PMI and CQI computation - - Support for 1 and 2 RX antennas - - Support for up to 2 layers + - RSRP measurements + - RI, PMI and CQI computation + - Support for up to 4 RX antennas + - Support for up to 2 layers * NR-PUSCH (including Segmentation, LDPC encoding, rate matching, scrambling, modulation, RB mapping, etc). - PUSCH mapping type A and B - DMRS configuration type 1 and 2 - Single and multiple DMRS symbols - PTRS support - - Support for 1 TX antenna + - Support for 2 TX antenna - Support for 1 layer * NR-PUCCH - Format 0 (2 bits for ACK/NACK and SR) - - Format 2 (up to 64 bits, mainly for CSI feedback) - - Format 1, 3 and 4 present but old code never dested (need restructuring before verification) + - Format 2 (up to 11 bits, mainly for CSI feedback) + - Format 1, 3 and 4 present but old code never tested (need restructuring before verification) * NR-SRS - - Generation of sequence at PHY - - SRS signal transmission + - Generation of sequence at PHY + - SRS signal transmission * NR-PRS - - PRS based Channel estimation with T tracer dumps - - Time of arrival(ToA) estimation based on channel impulse response(CIR) - - Finer ToA estimation by 16x oversampled IDFT for CIR - - Support for multiple gNB reception with gNBs synced via GPSDO + - PRS based Channel estimation with T tracer dumps + - Time of arrival(ToA) estimation based on channel impulse response(CIR) + - Finer ToA estimation by 16x oversampled IDFT for CIR + - Support for multiple gNB reception with gNBs synced via GPSDO * NR-PRACH - Formats 0,1,2,3, A1-A3, B1-B3 -* SS-RSRP - - RSRP measured on synchronization SSB (ok only for single SSB) * Highly efficient 3GPP compliant LDPC encoder and decoder (BG1 and BG2 are supported) * Highly efficient 3GPP compliant polar encoder and decoder * Encoder and decoder for short block @@ -546,6 +547,7 @@ The following features are valid for the gNB and the 5G-NR UE. - RRC Uplink/Downlink Information transfer carrying NAS messages transparently - RRC Reconfiguration/Reconfiguration complete - Support for master cell group configuration + - Reception of UECapabilityEnquiry, encoding and transmission of UECapability * Interface with PDCP: configuration, DCCH and CCCH message handling * Interface with RLC and MAC for configuration