FAJ 121 990: Enhanced Uplink Interactive RAB

This feature provides an interactive RAB for EUL. The RAB has support for both 10 ms and 2 ms TTI. For the 10 ms TTI up to two codes are supported with spreading factor 2xSF4, and for the 2 ms TTI up to four codes with spreading factor 2xSF2 + 2xSF4. The EUL is only used together with HSDPA in the DL. This feature requires the following optional RAN features:

• FAJ 121 1023: Enhanced Uplink Introduction Package • FAJ 121 905: HSDPA Interactive 384/HS RAB

• FAJ 121 1317: EUL 2 ms TTI, if the 2 ms TTI alternative is supported For more information, refer to Connection Handling.

2.4.2 FAJ 121 1054: Enhanced UpLink TN Optimization

A flow control mechanism between the radio node and RNC adapts each individual user data flow to fit the allocated Iub AAL2 path capacity for EUL traffic. When several users are connected, they all get a fair share of the allocated AAL2 bandwidth within their user service category.

2.4.3 FAJ 121 1112: EUL Scheduler Support for 6 Cell Carriers

The Enhanced Uplink scheduler in the radio node is extended to support up to six cell carriers improving the CE efficiency.

This feature requires the optional RAN feature FAJ 121 1023: Enhanced Uplink Introduction Package.

2.4.4 FAJ 121 1157: Channel Element Ladder for E-DCH with RAX R2

The improved CE ladder for the EUL users on low bit rates enables the operator to use the HW more efficiently.

This feature requires the optional RAN feature FAJ 121 1023: Enhanced Uplink Introduction Package.

For more information, refer to Configuring HSDPA and EUL.

2.4.5 FAJ 121 1317: Enhanced Uplink, 2 ms TTI

The Enhanced Uplink functionality is extended to support 2 ms TTI RB as a complement to 10 ms TTI RBs, enabling higher UL bit rates and lower latency.

This feature requires the optional RAN feature FAJ 121 1023: Enhanced Uplink Introduction Package.

This feature requires R6 terminals with 2 ms TTI capability and a radio node configuration with RAX R2e HW.

For more information, refer to EUL User Plane.

2.4.6 FAJ 121 1334: Improved CE Ladder for E-DCH on RAX R2e

This feature provides double CE efficiency for EUL users through a software capacity license. The improvement is valid for both low rate, and high rate, EUL users on 2 ms TTI and 10 ms TTI.

This feature requires the optional RAN feature FAJ 121 1023: Enhanced Uplink Introduction Package.

This feature requires a radio node configuration with RAX R2e HW or later, and with all DU variants.

For more information, refer to Configuring HSDPA and EUL.

2.4.7 FAJ 121 1491: EUL Multi-Carrier

The feature introduces support for the UE to use EUL on two adjacent carriers. Simultaneous UL Enhanced Dedicated Channel (E-DCH) transmission on two adjacent carriers is supported from a given UE unit. This is the UL equivalent to the HSDPA Multicarrier support in DL.

This feature requires the following RAN features to be active: • FAJ 121 1516: Improved Layer 2

• FAJ 121 1441: Multi-Carrier

• FAJ 121 1320: SRB on HSDPA or FAJ 121 1481: F-DPCH • FAJ 121 1317: Enhanced Uplink, 2 ms TTI

The feature EUL Multi-Carrier is only partly supported together with feature FAJ 121 2709: HSDPA MC Inter DU Joint Scheduling, Refer to Configuring HSDPA and EUL for more details.

For more information, refer to EUL Multi-Carrier.

2.4.8 FAJ 121 1503: EUL TD Scheduling

This feature increases the cell throughput in a multi-user case, through the introduction of time orthogonal transmissions by assigning different HARQ processes to the 2 ms TTI users. The EUL Time Division (TD) Scheduling

feature requires that the UL transmissions are almost synchronized between the TD users. Otherwise, the overlap causes too high UL Uu load and HW allocation problems. The timing scheduling algorithm is modified to achieve proper time alignment of the DL DPCH/F-DPCH.

For more information, refer to Enhanced UL Scheduler.

For information about activation and deactivation, refer to EUL Migration and Activation.

2.4.9 FAJ 121 1516: Improved Layer 2

This feature introduces a flexible RLC block size, MAC-i/is, and Iu FP type 2 introduced in 3GPP Rel-8.

This feature requires the optional RAN feature FAJ 121 990: Enhanced Uplink Interactive RAB.

For more information, refer to EUL User Plane, EUL Migration and Activation, and Transport Network Functionality.

2.4.10 FAJ 121 1518: EUL for Large RBS Configurations

This feature enables the use of EUL in two BBPs. It improves the EUL capability in large radio node configurations and increases the radio node UL capacity. In addition, it provides low latency and high throughput for more users.

This feature requires the optional RAN feature FAJ 121 1023: Enhanced Uplink Introduction Package.

For more information, refer to EUL User Plane.

Note: If the feature FAJ 121 3928: Increased Support for Cell Carrier Support on DUW is active, EUL for large RBS Configurations can handle up to three BBPs.

For more information, including activation and deactivation, refer to EUL Migration and Activation.

2.4.11 FAJ 121 1652: Enhanced Uplink for FACH

This feature enables the use of EUL in Idle Mode, URA_PCH, and CELL_FACH states. When the feature is activated in a cell, UE units that support this feature and are in Idle Mode, URA_PCH, or CELL_FACH states, transmit their data on the E-DCH instead of on the RACH. This feature supports only EUL with 10 ms TTI.

This feature requires the following optional RAN features: • FAJ 121 1537: High Speed Downlink for FACH • FAJ 121 1516: Improved Layer 2

The Device Optimized HS-FACH/EUL-FACH allows the operator to configure the network to prevent certain types of UE from entering CELL_FACH and URA_PCH states. It also allows the RNC to multicast the RRC Connection Setup and RRC Connection Reject messages to both R99 FACH and HS-FACH.

This mechanism can prevent KPI degradation caused by non-3GPP-compliant UE when Enhanced Uplink for FACH is enabled.

The feature introduces the support for the Extended Acquisition Indicator (E-AI). With the E-AI, up to 32 common E-DCH resources can be configured in a cell. A radio node can allocate any of these resources to the UE, irrespective of the preamble signature selected by the UE. The number of EUL-FACH preamble signatures and associated common E-DCH resources are no longer related. Therefore, with the E-AI introduced, the accessibility for EUL-FACH-capable UE is improved.

For more information, refer to Enhanced Uplink for FACH.

2.4.12 FAJ 121 1714: Interference Suppression

The Interference Suppression feature improves EUL either in terms of increased throughput or reducing the received power necessary to reach a certain throughput, that is reduced Rise over Thermal (RoT), noise rise. For more information, refer to Interference Suppression.

2.4.13 FAJ 121 1883: Channel Element Capacity for EUL Smartphones

This feature decreases the CE cost for 2 ms E-DCH RL to 2 CE, at initial setup and when the user is granted a single HARQ process.

This feature requires the following optional RAN features: • FAJ 121 1023: Enhanced Uplink Introduction Package • FAJ 121 1317: Enhanced Uplink, 2 ms TTI

• FAJ 121 1443: EUL single HARQ Process Scheduling

• FAJ 121 1334: Improved Channel Element Ladder for E-DCH

For more information, refer to EUL Migration and Activation and Capacity Management.