 enhanced CoMP while with especially WLAN interworking 3GPP is still searching the direction which to consider in terms of level of integration with WLAN, ranging between moderate enhancements for WLAN selection parameters up to radio-level aggregation with WLAN. The work on new UE categories continues with the beyond 1 Gbps categories in Release 13 are to be added in later versions of [13] during 2016. References [1] 3GPP Technical Report, TR 36.888, 'Study on Provision of Low-Cost Machine-Type Communications (MTC) User Equipments (UEs) Based on LTE', v.12.0.0, June 2013. [2] 3GPP Tdoc RP-141645, 'Further LTE Physical Layer Enhancements for MTC', September 2014. [3] 3GPP Tdoc RP-141180, 'Motivation for New WI: Further LTE Physical Layer Enhancements for MTC', September 2014. [4] 3GPP Tdoc RP-141660, 'New WI Proposal: Further LTE Physical Layer Enhancements for MTC', September 2014. [5] 3GPP Technical Report, TR 36.874, 'Study on CoMP for LTE with Non-Ideal Backhaul', v.12.0.0, December 2013. 3GPP Tdoc RP-141032, 'New Work Item on Enhanced Signalling for Inter-eNB CoMP', June 2014. [7] 3GPP Tdoc RP-131399, 'Updated WID: LTE TDD-FDD Joint Operation Including Carrier Aggregation', September 2013. [8] 3GPP TR 37.834, 'Study on WLAN/3GPP Radio Interworking', v.12.0.0, December 2013 [9] 3GPP Tdoc RP-122101, 'LTE/WLAN Interworking', RP-132101, 2013. [10] 3GPP Tdoc RP-141401, 'Motivation for E-UTRAN and WLAN Aggregation', September 2014. [11] 3GPP Tdoc RP-142311, 'Enhanced LTE D2D', December 2014. [12] 3GPP Tdoc RP-142205, 'Study on Support of Single-Cell Point-to-Multipoint Transmission in LTE', December 2014. [13] 3GPP Technical Specification, TS 36.306, 'User Equipment (UE) Radio Access Capabilities', v.12.3.0, December 2014. Small Cell Enhancements in Release 12/13 Antti Toskala, Timo Lunttila, Tero Henttonen and Jari Lindholm Introduction Small Cell and Dual Connectivity Principles Dual Connectivity Architecture Principle Dual Connectivity Protocol Impacts Dual Connectivity Physical Layer Impacts and Radio Link Mon