FAJ 121 2530: Shared RAN (MOCN) Multiple PLMN Support

This feature introduces the additional functionality required for

MOCN-supporting UE. The basis for the new functionality is the list of multiple PLMN-IDs broadcast in system information in the coverage area of the RAN. The list contains the PLMN-IDs of the RAN sharing operators. The MOCN-supporting UE selects one PLMN-ID from the broadcast list and includes this PLMN-ID in the request to set up a signaling connection toward the CN. The RNC matches the received PLMN-ID with the configured sharing operators and establishes a signaling connection toward the matching operator. This feature requires feature FAJ 121 974: Shared RAN (MOCN), to be activated and requires support in the MSC and the SGSN.

For more information, refer to Shared RAN (MOCN) multiple PLMN support.

2.2.46 FAJ 121 2551: ANR Mobility

Automatic Neighbor Relations (ANR) Mobility is a Self-Organizing Network (SON) feature implemented in the Serving Radio Network Controller (SRNC). The feature decreases the load of the operator by automatically detecting, identifying, and configuring intra-frequency neighbor relations in Neighbor Cell Lists (NCLs). The feature contributes to better Active Set (AS), which improves retainability (dropped calls ratio).

For more information, refer to ANR Mobility.

2.2.47 FAJ 121 2857: SRVCC for Voice and Data

Single Radio Voice Call Continuity (SRVCC) enables VoIP call continuity for the UE in LTE when the LTE coverage is lost and UTRAN does not support VoIP. For SRVCC CS and PS, this feature enables the handover of the voice component together with any PS RABs. The Mobility Management Entity (MME) involves both SGSN and MSC. Coordination mechanisms in both the MME and the RNC are required.

The SRVCC for Voice and Data feature can be activated in the RNC in Pool configuration, where messages sent from the CN can be randomly received by one of the cluster members.

For more information, refer to SRVCC for Voice and Data.

2.2.48 FAJ 121 2883: Smartphone Retainability for Heterogeneous

Networks

In heterogeneous networks or under imbalance conditions, the DPCCH quality is not guaranteed at the serving cell. This is also true of the High-Speed Dedicated Physical Control Channel (HS-DPCCH) quality, as transmitted with a fixed power offset relative to the DPCCH. The HS-DPCCH quality can be poor

and cause an unnecessary Hybrid Automatic Repeat Request (HARQ) and RLC retransmissions. The Smartphone Retainability for the Heterogeneous Networks feature provides the solution by increasing the Signal-to-Interference Ratio (SIR) target in Outer Loop Power Control (OLPC) that has to be triggered by the serving cell.

For more information, refer to Smartphone Retainability for Heterogeneous Networks.

2.2.49 FAJ 121 3249: Combined Cell

The Combined Cell feature allows for combining up to three cells (cell carriers) served by multiple radio units or remote radio units to one cell, called a combined cell. The cell carriers can either be located indoors or outdoors. However, all the cell carriers present in the same combined cell are considered as one logical cell with the same Physical Cell Identity (PCI).

For more information, refer to Combined Cell.

2.2.50 FAJ 121 3427: IRAT Offload from LTE

This feature introduces improved handling of incoming CS and PS HO requests from LTE, triggered by high load in LTE. It enables the implementation of load sharing between LTE and WCDMA cells, and traffic offload from highly loaded LTE cells to less loaded WCDMA cells.

For more information, refer to Inter-Radio Access Technologyand IRAT Offload from LTE.

2.2.51 FAJ 121 3520: Cell Reselection to LTE in CELL-FACH

This feature provides the UE support to perform the cell reselection from WCDMA to LTE in the CELL_FACH state. This capability is supported by an LTE-capable UE from 3GPP Release 8 (optional) and 3GPP Release 11 (mandatory). An indicator ‘‘CELL_FACH Absolute Priority Measurement Indicator’’ is added to SIB19 from 3GPP Release 11. It serves as an indication to UE during Radio Access Technology (RAT) measurements selection when the absolute priority-based cell reselection is enabled.

For more information, refer to Cell Reselection to LTE in CELL-FACH.

2.2.52 FAJ 121 3588: LTE Cell Reselection Dedicated Priorities

This feature enables control of how individual UE units perform cell reselection to LTE by sending dedicated priorities that override the absolute priorities received by the UE on the Broadcast Channel (BCH). These dedicated priorities are used to lower the priority of LTE frequency in the UE.

Three different parts are included in the feature LTE Cell reselection dedicated priorities. They can be used either separately or together. The functionality provided by those parts requires the feature to work together with the following prerequisite features:

• FAJ 121 3637: Subscriber Based Mobility Using SPID

Based on Subscriber Profile ID (SPID) values sent from CN, the LTE cell reselection can be controlled for each UE.

• FAJ 121 974: Shared RAN (MOCN).

Regarding MOCN: LTE frequencies used for cell reselection can be allowed or filtered out, based on which CN the UE has a signaling connection to. • FAJ 121 3427: IRAT Offload from LTE

Regarding LTE offload: UE offloaded from LTE because of high load in LTE, can be prevented to perform cell reselection back to LTE during a specific time.

For more information, refer to Idle Mode and Common Channel Behavior.

2.2.53 FAJ 121 3637: Subscriber Based Mobility Using SPID

This feature enables the RNC to have influence on how individual UE units perform mobility activities, like cell reselection to LTE. The feature also allows prevention of the RWR to LTE for selected UE units (for example without the LTE subscription). By defining specific SPID values for specific subscribers, modification of parameters shared by many UE units on a dedicated basis is possible. For example, absolute reselection priorities shared by every UE unit in a cell can be overridden by sending dedicated reselection priorities to selected UE units only.

This feature is used to enhance the functionality of two other features:

• FAJ 121 3588: LTE Cell Reselection Dedicated Priorities, based on SPID values sent from CN, the LTE cell reselection can be controlled for each UE unit.

• FAJ 121 2174: Release with redirect to LTE, based on the SPID values received from CN, the RWR to LTE can be prevented for each UE unit. For more information, refer to Subscriber Based Mobility Using SPID.

2.2.54 FAJ 121 3658: UE Throughput-Based Mobility to Wi-Fi in WCDMA

The feature controls mobility between Wi-Fi and WCDMA, based on end-user throughput. The user is steered to the network, Wi-Fi, or WCDMA, that currently offers the best throughput. The throughput evaluation is performed in real time for the individual user.

For more information, refer to UE Throughput-Based Mobility to Wi-Fi in WCDMA.

2.2.55 FAJ 121 3908: Narrowband Interference Rejection

The Narrowband Interference Rejection (NBIR) feature enables the radio node to use a suppression method for (frequency-wise) static or slowly moving narrowband radio interferers in the spectrum dedicated to a WCDMA carrier. The suppression function uses filters in the radio unit. Once configured as active for a Radio Frequency (RF) branch, NBIR is applied to interference suppression on a WCDMA carrier that is set up on that RF-branch of the radio unit. Interference can be caused by a range of external RF equipment (TV antenna amplifiers and push-to-talk systems, for example) that do not follow regulatory requirements for the band.

The feature improves performance for the WCDMA UL. It can reduce interference in the WCDMA carrier spectrum and, therefore, improve the received UL signal. This improvement helps to maintain coverage and cell throughput.

The result of the NBIR feature can be improved if the function is used together with the WCDMA feature FAJ 121 1714: Interference Suppression.

For more information, refer to Narrowband Interference Rejection.

2.2.56 FAJ 121 3946: Automatically Triggered Access Class Barring on

Cell Level

The feature Automatically Triggered Access Class Barring on Cell Level is an extension to the legacy feature FAJ 121 1616: Manual-triggered Cyclic Access Class Barring on Cell Level, where the main difference is that this new feature automatically triggers access class barring, whereas the legacy feature requires manual triggering of access class barring.

For more information, refer to Automatically Triggered Access Class Barring on Cell Level.

2.2.57 FAJ 121 3960: Release with Redirect to LTE Based on Coverage

Check

The feature Release with Redirect to LTE Based on Coverage Check introduces a check of the LTE coverage before attempting the RWR to LTE, so that the RWR to LTE attempts are avoided when no or insufficient LTE coverage is found. The feature is useful in WCDMA and LTE cell co-sited cases, when LTE is deployed on a higher frequency band than WCDMA, and the LTE cell coverage is lower than for the co-sited WCDMA cell. The coverage check threshold is configurable and is set by the operator to correspond to the coverage of co-sited LTE cells.

The feature FAJ 121 2174: Release with redirect to LTE is a prerequisite to this feature.

For more information, refer to Release with Redirect to LTE Based on Coverage Check.

2.2.58 FAJ 121 3963: LTE Cell Reselection for Advanced LTE Deployments

This feature provides the broadcast support of multiple E-UTRA frequency bands to LTE-capable UE units. The LTE-capable UE has therefore more options and opportunities to measure the supported LTE frequency band. High throughput-capable LTE UE can perform the LTE cell reselection to benefit from the LTE network.

This feature provides the operator with the flexibility to select the desired measurement bandwidth for the UE to perform the measurements. The LTE frequency bands deployed by the operator can overlap, so the UE must use a larger measurement bandwidth to gather accurate measurement statistics over the whole carrier bandwidth used. By specifying a certain larger bandwidth the UE needs to measure, the measurement can be well-controlled by the operator and be more reliable and accurate.

For more information, LTE Cell Reselection for Advanced LTE Deployments.

2.2.59 FAJ 121 4017: Multiple PLMN ID per Core Network Node

This feature introduces the additional functionality required to support the One PLMN-ID per Frequency feature for multiple CN operators using the same CN Node. This feature supports the configuration of more than one CN Operator for each Iu Link in the RNC. This feature requires another optional feature FAJ 121 1301: One PLMN-ID per Frequency to be activated.

For more information, refer to Multiple PLMN ID per Core Network Node.

2.2.60 FAJ 121 4036: Downlink Code Power Based Compressed Mode

This feature introduces a new measurement quantity named Downlink Transmitted Code Power to trigger the Compressed Mode (CPM) optimally, avoiding unnecessary CPM for a better performance regarding call drop rate. For more information, refer to Downlink Code Power Based Compressed Mode.

2.2.61 FAJ 121 4125: Radio Dot System in WCDMA

The feature Radio Dot System in WCDMA supports the new high capacity indoor small-cell solution Radio Dot System (RDS), as evolution of the main-remote concept optimized for low-power indoor deployments.

The feature uses a configuration with new Indoor Radio Units (IRUs) and Radio Dots (RDs) combined with existing DUs. The feature uses a capacity license for each RD.

The RDS is easily deployed since Category 7 or 6 (CAT 7/6) cables (new or existing) are used between the IRU and RDs. This reduces the cabling cost to a large extent compared with the Distributed Antenna System (DAS), where coax cables are required. The RD is powered from IRU over CAT cabling. The enhancement with basic O&M support allows operators to manage individual RDs on Cabinet Viewer and Element Manager, such as auto expanding, restarting, locking, unlocking, uninstalling, configuring and locating. The fault localization and report are also improved. Therefore, the enhancement improves the maintainability and manageability of the RDS. The feature is scalable to meet current and future service and device needs. The pooled baseband resource for optimal capacity distribution facilitates adding frequencies, capacity, and technologies, that is, the architecture enables pay-as-you-grow.

The indoor solution is fully coordinated with the outdoor network, since the legacy features are supported in the new HW.

The feature supports both Single-standard Single Mode (SSSM) and

Multistandard Mixed Mode (MSMM) for LTE Frequency Division Duplex (FDD) and WCDMA.

RBS 6202 can be equipped with up to 12 IRUs by IRU cascading, and up to 12 sectors are supported. With the distributed IRU configuration introduced, a WCDMA node can be configured as the primary node in a single-standard configuration to control the support system in all cabinets. In RDS, DU or Baseband, and IRUs are placed in the same cabinet. With the enhancement, RBS 6601 with one or two IRUs does not have to be placed together with the main cabinet with DU or Baseband.

This feature requires the following features to be active if the RDS feature runs in MSMM mode:

• FAJ 121 4162: Radio Dot System in LTE • FAJ 121 1553: Mixed Mode Radio WCDMA

The following features cannot be active together with the RDS feature: • FAJ 121 436: RTT Positioning

• FAJ 121 1679: PsiCoverage

• FAJ 121 1030: Extended Range up to 80 km • FAJ 121 1036: Extended Range up to 200 km • FAJ 121 1351: 4-Way Receiver Diversity

• FAJ 121 3908: Narrowband Interference Rejection For more information, refer to Radio Dot System.

2.2.62 FAJ 121 4159: Traffic Aware Power Save

The feature conserves energy by soft-locking cells during periods with measured low traffic. The locking of resources is done with minimal traffic impact by soft-locking the cells.

For more information, refer to Traffic Aware Power Save.

2.2.63 FAJ 121 4160: Multi-Sector per Radio

The feature introduces two new Radio Building Blocks (RBBs) and allows one RRUS 32 to be shared between two sectors with 2TX/2RX in each sector. More information about this feature can be found in Multi-Sector per Radio.

2.2.64 FAJ 121 4187: Uplink Coordinated Multi-Point Reception

Uplink Coordinated Multi-Point (CoMP) Reception is a function in the WCDMA radio node that enables better reception of uplink signals. It is achieved by expanding the use of softer handover in the radio node.

For more information, refer to Uplink Coordinated Multi-Point Reception.

2.2.65 FAJ 121 4244: RACH Overload Protection

This feature makes it easier for the UE in different states to share common channels resources to avoid RACH congestion. The feature utilizes Capacity Management functionality to perform admission evaluation, if the UE is upswitching from URA_PCH to CELL_FACH because of the PS data request. For more information, refer to RACH Overload Protection.

2.2.66 FAJ 121 4249: RAN Grand Master

With this feature, a radio node can act as Precision Time Protocol (PTP) Grand Master towards other RAN nodes. Global Navigation Satellite System (GNSS) is used as a synchronization source, that is the primary reference clock, for the RAN Grand Master. Radio nodes can provide each other with synchronization and therefore having a GNSS receiver on each site is no longer needed. GNSS can be put on sites providing the best environment for installation of GNSS antennas.