Reference Guide

Table Of Contents

Apex Lifestyle Small Cell features

Reference Guide

1-13

RLC AM mode

RLC (Radio link Control) AM (Acknowledge Mode) is needed for successful

inter-layer handover. It also allows minimizing the packet losses related with the IMS

signaling.

Traffic Prioritization

The Apex Lifestyle Small Cell supports traffic prioritization to guarantee low latency

for VoLTE and IMS packets.

Frequency Hopping

The scheduler can use Frequency Hopping for minimizing the block error probability,

trying to avoid instantaneous channel fading over one specific region of the spectrum.

The Apex Lifestyle Small Cell supports by default this function.

Location Services

• User plane: A-GPS trough SUPL protocol supported over GTP (transparent to the

Apex Lifestyle Small Cell)

• Control plane: LPPa E-CID procedures

QoS and Traffic Prioritization at scheduler level

Support of traffic prioritization is crucial for ensuring the Quality of Service for voice

calls in medium or highly loaded systems. Because LTE does not have circuits with

guaranteed capacity, it is needed to guarantee some latency and capacity to VoLTE

and IMS packets. Explicitly supporting traffic prioritization, QCI based QoS, GBR

and MBR, as well as latency control is a must. The Apex Lifestyle Small Cell supports

these functions for providing rich VoLTE services.

Single Radio Voice Call Continuity (SRVCC)

Support of handover is critical for voice quality to avoid loss of service with degraded

voice quality. The Apex Lifestyle Small Cell supports intra-frequency,

inter-frequency LTE handovers, as well as IRAT handovers to enable available best

service to a user.