ETSI TR 125 912 V13.0.0

Nicholas_chen

Feasibility study for evolved Universal Terrestrial Radio Access (UTRA) and Universal Terrestrial Radio Access Network (UTRAN)
Radio interface protocol architecture for evolved UTRA ................................................................................ 11
6.1 User plane ........................................................................................................................................................ 13
6.2 Control plane ................................................................................................................................................... 13
7 Physical layer for evolved UTRA .......................................................................................................... 14
7.1 Downlink transmission scheme ........................................................................................................................ 14
7.1.1 Basic transmission scheme based on OFDMA ........................................................................................... 14
7.1.1.1 Basic parameters .................................................................................................................................. 14
7.1.1.1.1 Modulation scheme ......................................................................................................................... 15
7.1.1.2 Multiplexing including reference-signal structure ................................................................................ 15
7.1.1.2.1 Downlink data multiplexing ............................................................................................................ 15
7.1.1.2.2 Downlink reference-signal structure ................................................................................................ 15
7.1.1.2.3 Downlink L1/L2 Control Signaling ................................................................................................. 15
7.1.1.3 MIMO and transmit diversity ................................................................................................................ 16
7.1.1.4 MBMS .................................................................................................................................................. 16
7.1.2 Physical layer procedure ............................................................................................................................. 16
7.1.2.1 Scheduling ............................................................................................................................................ 16
7.1.2.2 Link adaptation .................................................................................................................................... 17
7.1.2.3 HARQ .................................................................................................................................................. 17
7.1.2.4 Cell search ............................................................................................................................................ 17
7.1.2.5 Inter-cell interference mitigation ........................................................................................................... 18
7.1.3 Physical layer measurements ...................................................................................................................... 18
7.1.3.1 UE measurements ................................................................................................................................ 18
7.1.3.1.1 Measurements for Scheduling ......................................................................................................... 18
7.1.3.1.1.1 Channel Quality Measurements ................................................................................................. 18
7.1.3.1.1.2 Measurements for Interference Coordination/Management ....................................................... 19
7.1.3.1.2 Measurements for Mobility ............................................................................................................. 19
7.1.3.1.2.1 Intra-frequency neighbour measurements .................................................................................. 19
7.1.3.1.2.2 Inter-frequency neighbour measurements .................................................................................. 19
7.1.3.1.2.3 Inter RAT measurements ........................................................................................................... 19
7.1.3.1.2.4 Measurement gap control ........................................................................................................... 19

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