1. June 2015: LTE Release 13 and road to 5G - Presented by Dino Flore, Chairman of 3GPP RAN, (Qualcomm Technologies Inc.)
2. Sep 2015: Executive Summary - Inside 3GPP Release 13 by 4G Americas
3. June 2015: Mobile Broadband Evolution Towards 5G: 3GPP Rel-12 & Rel-13 and Beyond by 4G Americas
4. April 2015: LTE release 13 – expanding the Networked Society by Ericsson
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The 4G Americas whitepaper contains the following LTE-Advanced topics:
* Active Antenna Systems (AAS), including elevation beamforming enhancements and Self-Organizing Network (SON) aspects for AAS
* Enhanced signaling to support inter-site Coordinated Multi-Point Transmission and Reception (CoMP)
* Carrier Aggregation (CA) enhancements to support up to 32 component carriers
* Dual Connectivity (DC) enhancements to better support multi-vendor deployments with improved traffic steering
* Improvements in Radio Access Network (RAN) sharing
* Enhancements to Machine Type Communication (MTC)
* Enhancements to Proximity Services (ProSe)
* Licensed Assisted Access for LTE (LAA-LTE), in which LTE can be deployed in unlicensed spectrum
* LTE Wireless Local Area Network (WLAN) Aggregation (LWA) where the data bearer can be served by the LTE radio link and/or Wi-Fi through LTE-WLAN aggregation
* Downlink Multi-User Superposition Transmission (MUST) for transmission of more than one data layer to multiple users without time, frequency or spatial separation
HSPA+: enhancements are also addressed further in Rel-13, including:
* Support for dual band Uplink (UL) Carrier Aggregation
* Enhancements for reducing control channel overhead
Other network-related services are also summarized in the paper, including:
* Introduction of Wi-Fi integration enhancements to support Network-Based IP Flow Mobility (NBIFOM) and harmonize the support of voice and video services over Wi-Fi
* Enhancements to support Mission Critical Push-to-Talk (MCPTT) over LTE, Multimedia Broadcast Multicast Services (MBMS) enhancements and group based enhancements (GROUPE) for public safety
* Optimizing performance for MTC services by defining a Dedicated Core (DECOR) and Monitoring Enhancement (MONTE)
* User Plane Congestion Management (UPCON) features which enable the identification of cells and users in congested situations so that policy decisions can be used to mitigate congestion
* Application Specific Congestion Control for Data Communication (ACDC) to manage access attempts on a per application basis
* Architecture Enhancements for Service Capability Exposure (AESE) to expose valuable information to third party application providers
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