The mmMAGIC project will develop and design new concepts for mobile radio access technology (RAT) for deployment in the 6-100 GHz range, including novel waveform, frame structure and numerology, novel adaptive and cooperative beam-forming and tracking techniques to address the specific challenges of millimetre wave mobile propagation. This new RAT is envisaged as a key component in the overall 5G multi-RAT ecosystem.
Seamless and flexible integration with other 5G and LTE radio interfaces are foreseen in the design of mmMAGIC’s radio network architecture and this will be realized through improved and entirely novel inter-networking functionalities that will be developed in the project. Self-backhauling and front hauling capabilities are also foreseen, thereby creating a holistic, scalable and economically viable integrated 5G solution to meet future needs of operators, enabling, for example, ultra-high definition TV and video streaming, virtual reality, immersive experience, and ultra-responsive cloud services in 5G for mobile users.
The project will undertake extensive radio channel measurements in the 6-100 GHz range at multiple locations in Europe, and will develop advanced channel models that will be used for rigorous validation and feasibility analysis of the proposed concepts and system, as well as for usage in regulatory and standards fora. The ambition of the project is to pave the way for a European head start in 5G standards and to be a focal point for European and global consensus building on the architecture, key components and spectrum for 5G systems operating above 6 GHz.
To address the project objectives, mmMAGIC will be organized using a flat project structure with parallel activities taking place in different six work packages; five of technical nature, and one for project management and dissemination. The research and technology development work in the technical work packages consists of defining user needs and implications of regulatory constraints (WP1 led by Intel Mobile Communications GmbH), channel measurements and modelling (WP2 led by Fraunhofer Heinrich-Hertz-Institut), research on system and radio interface concepts and solutions (WP3 – WP5, led by Nokia Solutions and Networks, Huawei Technologies Dusseldorf GmbH and Samsung Electronics (UK) Ltd., respectively), and dissemination and visualization of results (WP6 and WP1).
WP1: Technology ecosystem enablers and visualization
WP1 is a horizontal workpackage that supports all the other workpackages. It is subdivided in 4 main tasks that cover, functionally and temporally, the complete development of the project: from the early definition to the final feasibility analysis of use cases and KPIs, passing through the spectrum identification and assessment and the visualization of the radio interface concepts.
Leveraging the ongoing analysis, one goal of mmMAGIC is to define the most compelling use cases and KPIs for future 5G systems operating in the 6-100 GHz range. The objective is to enable ultra-dense deployment (e.g. stadiums or shopping malls) and ultra-high capacity services for mobile devices (e.g., real-time 4k video streaming/upload/download).
In this respect is of key importance to identify suitable frequency ranges in the mm-wave spectrum.
The use cases will be mapped onto an appropriate simulation and demonstration setup that will allow the visualization of the radio interface concepts and algorithms studied in the technical workpackages. Selected configuration parameters and performance metrics (e.g., throughput, beamforming/MIMO etc.) will be visualized in the software.
Finally, to have a concrete evaluation of the developed technology, system-level analysis of requirements for selected deployment scenarios based on input from other tasks and work packages will be performed. The main result will be a first assessment of the viability, from a techno-economic viewpoint, of the technological solutions proposed for the scenarios and use cases identified.
The main achievements that WP1 will achieve can be summarized as follows:
- Define and specify use cases and KPIs for future 5G systems operating in mm-wave bands for ultra-high capacity services
- Identify and evaluate contiguous suitable frequency ranges in the spectrum range 6 to 100 GHz
- Visualize the selected candidate radio interface concepts.
- Evaluate from the techno-economic viewpoint the proposed technology
WP2: Channel measurements and modelling
The availability of suitable channel models is a crucial aspect for the development and deployment of ultra-high capacity 5G mm-wave networks. Substantial work has been carried out during the last decade to undertake channel measurement campaigns and to elaborate on reference channel models for cellular communications in the frequency bands below 6 GHz.
Since mm-wave channel characterization for mobile scenarios has been identified as an important research topic, an increasing amount of measurement data and preliminary modelling results are becoming available from different research groups. They provide a highly valuable basis, but the level of knowledge is still far from being sufficient to derive 5G reference channel models for all relevant frequency bands and scenarios.
A key ambition of mmMAGIC is to close this gap and develop validated advanced channel models, based on statistically significant measurement data, which are acquired in different scenarios and in multiple frequency bands within the entire range from 6 – 100 GHz.
- Utilizing of advanced multi-band measurement equipment enabling unprecedented investigations on the mm-wave radio channel.
- Performance of extensive measurement campaigns in relevant 5G scenarios under different propagation conditions.
- Development and validation of accompanying map-based simulation techniques.
- Extraction and interpolation of frequency dependent fundamental channel parameters.
- Development of a unified channel model allowing for link and system level evaluations of 5G mm-wave networks.
WP3: RAN functions, architecture, and network integration
In this workpackage we work on architectural enablers for inter-RAT integration, edgeless user experience. These aspects are studied in scenarios (a) and (b) depicted below. Moreover mm-wave technology is studied as enabler for other technology operation and dynamic deployments providing technologies and solutions for wireless backhaul and fronthaul – scenario (c).
mmMAGIC scenarios for mm-wave technology integration into the overall 5G technology ecosystem
In more details, objectives of this work package are:
- Investigate system-level performance of a mm-wave radio access technology in standalone operation. Characterize its key performance indicators for various deployment schemes. Identify main challenges for securing the edgeless quality of experience with special focus on mobility factors.
- Develop the mm-wave technology as an enabler for other technologies advanced operation, e.g., in form of wireless backhaul, fronthaul or interaccess node coordination interfaces.
- Develop technologies and procedures enabling dynamic network deployments. This should include such aspects as flexible network topologies based on wireless backhaul and fronthaul, self-configuration and optimization, dynamic resource management, etc.
- Develop architectural enablers for integration of the millimetre-wave technology with other 5G and legacy technologies.
- Develop architectural enablers for features integrating millimetre-wave access and backhaul/fronthaul links and enabling dynamic network deployment and operation.
- Define recommendations on 5G deployment aspects for standalone millimetre-wave and multitechnology scenarios.
WP4: Radio interface definitions and functions
To exploit mm-wave frequency resources, the radio interface (including PHY and MAC layer) needs to be properly designed taking into account the specific characteristics of the underlying propagation channels and the specific challenges when using such frequencies for access and backhaul. mmMAGIC envisions a new radio interface design that mainly comprises five aspects: waveform, channel code and retransmission schemes, frame structure and numerology, access and duplex schemes, and dynamic spectrum usage schemes. Hardware-in-the-loop (HIL) based trials will be conducted to evaluate the corresponding advanced technologies under real hardware and channel conditions.
The objectives of this work package are:
- Design waveforms for mm-wave access and backhaul taking into account the specific challenges and characteristics of mm-wave communication.
- Develop channel coding and decoding schemes and retransmission schemes that support high throughput and low latency.
- Design frame structure and numerology to optimize the transmission in different mm-wave bands and support efficient initial access, beamforming/tracking and low energy consumption.
- Analysis and design of multiple access and duplexing schemes taking into account the extensive use of antenna arrays.
- Develop efficient initial access scheme(s) to support efficient and robust access.
WP5: Multi-node and multi-antenna transceiver architectures and schemes
Beamforming at both transmitter and receiver ends, to mitigate the severe path loss effects will be a key feature of future mm-wave 5G systems. In this work package, the utilization of a very large number of multi-antenna elements will be studied and effective solutions to suit a multitude of scenarios will be developed. The work will start with the derivation of transceiver architectural requirements and functional analysis of multi-antenna systems. Building on this architectural framework, the multi-antenna transceiver schemes for access, relay, front-haul and backhaul will be developed. Taking this work further forward, advanced multi-node co-ordination and co-operation schemes, with special emphasis on channel and interference sounding methods will be developed. WP5 will bring in extensive expertise on RF transceiver design, especially with regard to analogue, digital and hybrid beamforming. It will also utilize signal processing expertise in optimizing the efficiencies in multi-antenna operations. WP5 will work with close collaboration and tight integration with all other work packages, in particular with WP4 and WP3.
Key WP5 Objectives:
- To study and develop transceiver technologies that enable utilizing very large antenna arrays in a flexible and efficient way.
- To enable flexible support in developed multi-antenna solutions for a multitude of use cases, number of users/beams and different connectivity distances for radio access, relay, fronthaul and backhaul scenarios.
- To enable edgeless user experience by effectively mitigating effects of severe signal blockage and coverage holes through energy and cost efficient solutions.
WP6: Project management and dissemination
The main objectives of this work package are the management of the project, the planning and coordination of dissemination activities and exploitation of project results and the coordination of the final system concept work. Consequently, this work package is broken down into three tasks. T6.1 is dedicated to handling day-to-day management of the project. T6.2 is responsible for dissemination and exploitation, while T6.3 will integrate the developed radio interface and system concept components into a final system concept. The management task is led by the Coordinator (SRUK) which is assisted in this task by the Technical Manager (EAB).
T6.1 Project Management
The objectives of T6.1 are to lead the project, coordinating also day-to-day management of the project, including planning and organization of projects meetings and workshops. The task will also ensure that the project maintains its scientific and technological objectives as agreed in description of work (DoW), as well as its relevance to the strategic objectives of the Framework Programme in general and the 5G PPP research programme in particular. Furthermore, this task is also responsible for the maintenance of the overall project plan, assurance of quality of the results of the project, coordination of the preparation and distribution of the deliverables.
Task 6.2 Dissemination and exploitation
This task is in charge of developing and executing a well-coordinated and highly targeted dissemination plan in order to archive a very high level of visibility of results and impact towards standards and regulatory bodies, as well as the scientific community and the wider user groups that would benefit from the 5G technologies developed in the project. To this end, T6.2 will develop a project dissemination and communication plan including active tracking and monitoring of standards and regulatory timelines in order to ensure that mmMAGIC research results are circulated in the timeliest, synchronised and impactful manner.
Task 6.3 Overall system concept
This task will integrate the developed radio interface and system concept components into a final system concept.