SHARING S elf-organized H eterogeneous A dvanced R ad I o N etworks G eneration Orange led Project (Spring Call 2012-1) 1
SHARING Outline • Context and drivers • Challenges • The Celtic+ project SHARING • Background and position with respect to 3GPP • SHARING vision beyond LTE-A • SHARING solutions • Project structure 2
SHARING Context and drivers Traffic demand and services • ICT industry is recognized as one major driver for economic recovery and sustainability • BUT … wireless & mobile systems are increasingly challenged • Increase in global traffic demand • Customer behavior changes linked to social networks and multimedia services • resulting in “always-on” services/applications • Increase in variety of services/ Monthly traffic per Device (Western Europe) applications with diverse QoS Representative Western European Country requirements 16000 • Rise of the Machine-to-Machine 14000 12000 (M2M) services/applications relying Low end phones 10000 MB per month Mid-range smartphones on Device-To-Device (D2D) High-end smartphones 8000 Dongles communications Connected devices 6000 M2M 4000 • paving the way to a pervasive 2000 Internet of Things 0 2010 2015 2020 3 Source: IDATE
SHARING Context and drivers Power and cost efficiency • High power consumption • ICT industry has its share in reducing the power consumption and developing a sustainable and green industry (energy costs can account for 20-35 % of OPEX!) • Proposed solutions such as network densification, new hardware (e.g. power amplifiers) should be carefully designed with a power-efficient perspective • High deployment and operational costs (CAPEX and OPEX) • substantial loss of profit due to the decoupling of traffic and revenues • flat prices • need to upgrade the network to meet the increased traffic demand) • competitive advantage in every bit of OPEX and CAPEX reduction Traffic – Revenue decoupling in Mobile Broadband Market 4
SHARING Challenges Significant capacity increase • need more capacity in urban areas (driven by video applications) • HetNet solutions → interference management Customer satisfaction through high QoS for all services/applications with diverse requirements • QoS in multi-layer and multi-RAT environments (including Wi-Fi) Increase spectrum efficiency Increase energy efficiency • Radio Frequency (RF) front ends, Power Amplifiers (PAs) for macro cells • ON-OFF / sleep modes for small cells Efficient solutions to fragmented spectrum • Manage multiple frequency bands (licensed, unlicensed) • SDL (Supplementary Downlink) and Carrier Aggregation (CA) schemes Decrease costs (CAPEX/OPEX) • Decreasing revenues vs. increasing needs for additional sites and bandwidth 5
SHARING Celtic+ project SHARING S elf-organized H eterogeneous A dvanced R ad I o N etworks G eneration 2 Network Operators § Project lead: Orange 3 Manufacturers § 15 partners from 4 countries § Effort ~ 95 person-years 6 SMEs § Duration 39 months (Dec 2012 -Feb 2016) 2 Universities § Cost ~ 13 M € 2 Research Institutes 6
SHARING Background and positioning with respect to 3GPP • Builds upon previous FP7 projects that ran in parallel with 3GPP LTE-A Rel-10 and Rel-11 • ARTIST4G: Advanced Radio Interface Technologies for 4G Systems • BeFemto: Broadband Evolved Femto Networks • SHARING innovations are based on 3GPP Rel-12 • Target contributions to 3GPP Rel-13 (and beyond) to LTE-Advanced evolutions through pre-standardization consensus building ARTIST4G - BeFemto SHARING 3GPP Rel-12 3GPP Rel-13 and beyond … 3GPP Rel-10 3GPP Rel-11 Operators need to achieve a Our conviction is that there is satisfactory return on investment still an important room for before post-LTE systems will be improvements for LTE-A systems deployed 7
SHARING SHARING vision beyond LTE-A HetNets → capacity increase • Densification through different cell sizes (macro, micro, pico, femto, WiFi APs) • Different access technologies • cellular (2G, 3G, 4G) → intra-RAT offloading • WiFi → inter-RAT offloading 8
SHARING SHARING vision beyond LTE-A 9
SHARING SHARING vision beyond LTE-A HetNets → capacity increase • Densification through different cell sizes (macro, micro, pico, femto, WiFi APs) • Different access technologies • cellular (2G, 3G, 4G) → intra-RAT offloading • WiFi → inter-RAT offloading Device-to-Device communications → coverage and capacity enhancement Relays → coverage and capacity enhancement 10
SHARING SHARING vision beyond LTE-A 11
SHARING SHARING vision beyond LTE-A HetNets → capacity increase • Densification through different cell sizes (macro, micro, pico, femto, WiFi APs) • Different access technologies • cellular (2G, 3G, 4G) → intra-RAT offloading • WiFi → inter-RAT offloading Device-to-Device communications → coverage and capacity enhancement Relays → coverage and capacity enhancement Flexible interference management → increase spectral efficiency • Multi-node, multi-antenna cooperation schemes (CoMP, MU-MIMO) and the accompanying architectural evolution • Enhanced interference mitigation (interference alignment, MUD) • Advanced receivers (iterative demodulation-decoding, SIC) • Carrier aggregation → solution to fragmented spectrum 12
SHARING SHARING vision beyond LTE-A CoMP ¡ Advanced ¡ receivers ¡ ¡ ¡ Op(cal ¡network ¡ for ¡BBU-‑RRH ¡and ¡ BBU ¡hosteling ¡ 13
SHARING SHARING vision beyond LTE-A HetNets → capacity increase • Densification through different cell sizes (macro, micro, pico, femto, WiFi APs) • Different access technologies • cellular (2G, 3G, 4G) → intra-RAT offloading • WiFi → inter-RAT offloading Device-to-Device communications → coverage and capacity enhancement Relays → coverage and capacity enhancement Flexible interference management → increase spectral efficiency • Multi-node, multi-antenna cooperation schemes (CoMP, MU-MIMO) and the accompanying architectural evolution • Enhanced interference mitigation (interference alignment, MUD) • Advanced receivers (iterative demodulation-decoding, SIC) • Carrier aggregation → solution to fragmented spectrum Self-optimization → decrease costs (OPEX/CAPEX) • automated inter- and intra-RAT traffic steering (offloading) • dynamic spectrum allocation • energy efficiency 14
SHARING SHARING vision beyond LTE-A SON ¡ CoMP ¡ Advanced ¡ receivers ¡ ¡ ¡ Op(cal ¡network ¡ for ¡BBU-‑RRH ¡and ¡ BBU ¡hosteling ¡ 15
SHARING SHARING solutions Inter-‑ technology ¡ offloading ¡ Intra-‑ Flexible ¡ technology ¡ interference ¡ offloading ¡ management ¡ SON ¡and ¡ Relaying ¡and ¡ SHARING ¡ advanced ¡ D2D ¡ objec(ves ¡ coopera(on ¡ 16
SHARING Project structure 17
SHARING Many thanks to A. Ortega (project coordinator), F. Pujol (WP2 leader), Y. Fernandez (WP3 leader), K. Hiltunen (WP4 leader), M. Bennis and M. Khanfouci (task leaders) for their 18 contributions
SHARING Technical insight 19
SHARING WP2 Technical orientations, dissemination and standardization Technical orientations, dissemination and standardization WP2 Scenarios, KPIs and Standardization Global project and Market study evaluation results methodology dissemination Task 2.1 Task 2.2 Task 2.3 Task 2.4 § Main objectives § Anticipate new usage scenarios and extract the requirements on radio-access technologies and deployment strategies § Define the evaluation methodology, the set of deployment scenarios, ensure a common understanding of metrics and KPIs (Key Performance Indicators) and the alignment of the evaluation of the different technical solutions so that they can be compared § Quantify the project objectives in relation to the specified metrics § Foster results, clearly demonstrating the project achievements with respect to the objectives § Monitor activities in relation with standardization and coordinate standardization contributions for an efficient impact on standardization 20
SHARING WP3 Flexible air interface Flexible air interface WP3 Interference cancellation at the Multi-point cooperation Flexible interference RF and antenna management concept design receiver and advanced at the transmitter transceivers Task 3.1 Task 3.3 Task 3.4 Task 3.2 § Main objectives § Improve performance and capacity gains in near-future wireless networks. § Increase spectral efficiency. § Multi-band exploitation through carrier aggregation. § Proposed technical solutions § Transmitter-side cooperative solutions (CoMP, advanced MIMO schemes). § Interference mitigation mechanisms at the receiver. § Enhanced spatial modulation schemes. § Different interference management techniques (IA, ICIC, etc). § A realistic simulation framework using ray-based propagation modeling. § Reconfigurable RF front-end and antenna to implement carrier aggregation. 21
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