Radio Interface

Project Leader

Georg WANNEMACHER (Lead), Deutsche Telekom


Contact: Klaus MOSCHNER, NGMN Office (office(at)


ETSI ISG ORI (Open Radio equipment Interface)
Chairman: Tim FROST, Vodafone




The objective of this project was to develop the implementation recommendations for open internal interface of radio base stations between BaseBandUnit (BBU) and the RadioRemoteHead (RRH).
By connecting with RRH via optical fibers, operators can reduce the cost of RF cabling.
This project has reached TG2 (Closure).


In 2010, the European Telecommunications Standards Institute (ETSI) launched the Industry Specification Group Open Radio Equipment Interface (ISG ORI) with the objective to develop and to maintain the specifications based on the implementation requirements developed within the NGMN Alliance.


A Memorandum of Understanding was signed between the NGMN Alliance and ETSI echoing the strong support from NGMN in launching the ISG ORI.
See NGMN Alliance - ETSI MoU

Backhaul Evolution (P-BEV)

Project Leaders

Miguel ALVAREZ (Lead), FT/Orange
Lance HILEY/Julius ROBSON (Co-Lead Small Cells), Cambridge Broadband Networks Ltd.


Contact: Klaus MOSCHNER, NGMN Office (office(at)




Goal of this project is to provide detailed frames of reference for industry exchanges on adapted backhaul solutions for small cells environments and integrated QoS management solutions.


In the "small cells" stream of the project, the objective is to adequately and precisely describe the transport needs of such RAN equipment, to develop a list of requirements to be fulfilled by potential solutions, and to describe example scenarios. The overall aim of this is to facilitate exchanges between operators and vendors and to stimulate this approach for LTE network densification (from the backhaul side).


In the "integrated QoS" stream of the project, the objective is to provide a clear description of an open, standard mechanism to integrate service- and transport-level QoS mechanisms and facilitate information exchanges about the available transport resources. Furthermore, the project aims to provide this input to SDOs so that a comprehensive standard can be developed if the need for it is identified. As a global objective, the goal is to avoid the fragmentation of the industry into multiple proprietary solutions, to improve the flexibility of operators to introduce improved QoS features in their networks and to stimulate vendor developments in this domain.


Main Deliverables:

  • Framework description of adapted backhaul solutions for Small Cells and associated requirements
  • Generic description of integrated QoS mechanisms and proposed standardization targets


Project Leaders

Kevin LINEHAN (Lead), Andrew/CommScope
Paolo GIANOLA (Co-Lead), Telecom Italia


Contact: Klaus MOSCHNER, NGMN Office (office(at)




Ambiguity in antenna specifications resulting from a lack of standards can make it difficult for RF engineers and supply chain managers to competently compare product from various vendors. Miscommunication during the procurement process on specification definitions and compliance to them is likely commonplace.


Introduction of globally accepted antenna standards into the wireless industry will facilitate more informed and accurate cost/benefit decisions on antenna selection. Standardization in the marketplace will potentially drive quality and improved performance into antenna products and result in positive impact to coverage, capacity and QoS.


The Project BASTA generating an NGMN whitepaper that recommends base station antenna (BSA) standards, and facilitates an appropriate forum or organization to further develop them and promote their adoption, would be beneficial to the wireless community and the NGMN partners.


Scope and Objectives:


The result of the project on Base Station Antenna Standards is an Implementation Recommendation which helps the telecommunication industry to establish industry-wide accepted antenna standards for the benefit of its customers.


The scope of the project will be to:

  • Collect existing base station antenna standards
  • Develop specific recommendations on standards
  • Identification of an organisation to take ownership of the standards development
  • Facilitate the transfer of the standards work to the identified organisation


Project Leaders

Clark CHEN (Lead), China Mobile
Kiho LEE (Co-Lead), Korean Telecom
Sungo MOON (Co-Lead), SK Telecom
Philippe SEHIER(Co-Lead), Alcatel-Lucent


Contact: Klaus MOSCHNER, NGMN Office (office(at)


Scope and Objectives:


Mobile operators face increasingly challenges in the recent years in the following areas:

  • Fast increasing data traffic but flatten APRU: 50x data traffic in future
  • High CAPEX/OPEX of RAN
  • Surging power consumption
  • Dynamic workload and low BS utilization rate
  • Interference problem limits network capacity


Mobile operators must find innovative RAN solution to resolve the above challenges with much lower CAPEX/CAPEX to keep profitable in the mobile internet era.


In the view of these challenges, the project addresses the following scope and objectives:

  • Determine the major issues of traditional RAN and possible changes to enable sustainable growth in the mobile internet era.
  • Define the future RAN implementation and deployment methodology which can satisfy the surging mobile data traffic need, with low bit-cost, high spectral efficiency, high energy efficiency, flexibility multiple standards support based on emerging technologies, concept and tools.
  • Investigate the benefits, concerns, feasibility, technical challenges of these emerging technologies, concept and tools, including but not limited to: multi-antenna array, common baseband unit, radio signal transportation on fiber, centralised processing, co-operative radio, and real-time Cloud computing infrastructure etc. in future RAN implementation and deployment.
  • Determine graduate upgrade methodology to incrementally change traditional RAN infrastructure toward future RAN infrastructure.

Main deliverables of the project Centralised RAN (P-CRAN) are/will be:

  • Report on today's RAN cost structure information
  • General requirements definition for low-cost, high bandwidth and power efficient RAN implementation and deployment
  • Solutions for new RAN implementation and deployment methodology based on emerging technologies
  • Liaisons, contributions to relevant SDOs and industry bodies


Project Leaders

Jean-Pierre CHARLES (Lead), FT/Orange
Jan ELLSBERGER (Co-Lead), Ericsson


Contact: Klaus MOSCHNER, NGMN Office (office(at)




Mobile Networks are becoming increasingly complex and numerous. The transition to future networks is dominated by the challenge of heterogeneous radio access technologies and requirements.


Network Operators require solutions that demonstrate a safe transition to future network technologies, solutions that scale profitably, including other technologies (e.g. Wi-Fi) and also consider the smooth operation of heterogeneous networks. Otherwise operators and vendors will be facing such implementation barriers that stacking of the networks will be delayed or rejected whatever would be the benefit from a radio capacity perspective.

With the introduction of LTE accelerating new models for the usage of mobile broadband: video, applications, uploading … In other words an increase of various different broadband services the need of efficient offloading access technologies is imminent. On localized areas, various technologies will need to coexist in order to deliver the required bandwidth and performances, as well as the need to support an increasing demand of capacity.


The project will focus on LTE as the centre of investigations considering Wi-Fi and pprioritizing Wi-Fi over small cell and Femto cell integration and operations.


Main deliverable of the project Heterogeneous Networks Evolution and Operations (P-HEVOR) will be a whitepaper

  • highlighting the interfaces between systems of interest
  • O&M expectations from operators point of view on the integration of systems
  • communicating the requirements and recommendation to the industry
  • List the existing standardization initiatives in the area of heterogeneous networks





Project Leaders

Xin MA (Lead), China Mobile
Neil MCGOWAN (Co-Lead), Ericsson


Contact: Klaus MOSCHNER, NGMN Office (office(at)




There are two trends for future antenna deployment: multi-antenna tech application for both TDD&FDD LTE systems and co-site requirements for 2G/3G/LTE operators. Thus, operators will face great challenges on antenna deployment with larger antenna size. Two major issues can be observed in base station antenna deployment:

  • Operators having different antenna specifications, even for the exact same frequency bands.
  • Multiple wireless networks using different antennas, even if co-located and close in frequency of operation.


This resulted a multitude of different base station antenna versions, which not increased cost for vendors, but also resulted in operators' increased OPEX due to a variety of antenna panels on the tower. In this respect it would be beneficial for the industry to align some optimal common base station antenna solutions or modes.


The scope and objectives of this projects are:

  • Share experiences and solutions of compact antenna designs and deployment
  • Share experiences and solutions of co-sited multi-system antennas with wide frequency bandwidth supporting as many 2G/3G/LTE bands as possible
  • Conclude some antenna application modes for future antenna deployment in different scenarios based on the experience sharing


Main deliverables of the project Multi Antenna Technology (P-MATE) are/will be:

  • Smaller size antenna design solutions
  • FDD&TDD co-site solutions
  • Future antenna requirements


Contact: Philipp DEIBERT, NGMN Office (office(at)


Global carbon emissions are further increasing and every country and industry is affected by the negative effects of the climate change. The IC industry currently generates around 2% of the world-wide carbon emissions.


Many measures have already been taken by Telecom Operators and Vendors e.g. in the area of equipment power efficiency to improve the green footprint. Furthermore, ICT players have the opportunity to introduce advanced communication technologies that will help other industries to drive sustainability.


The NGMN Alliance and its Partners place a strong emphasis on the development of the most energy efficient next generation technology and on the extension of the industry's green footprint. Therefore, the NGMN Green Telco Initiative brings together NGMN Partners who run projects and have started activities to protect the environment.


Please find below a selection of NGMN Partners with an outline of their solutions and insights.
Further information can be received through NGMN Office at office(at)


Please find below a viewpoint from Philipp Deibert (NGMN) on Sustainability and Energy Efficiency for download Sustainability and Energy Efficiency


NGMN Advisors represent leading universities and research institutes in the area of mobile communications. They participate in projects and activities of NGMN and add their research perspective on innovation. NGMN Advisors are also encouraged to build their own network on training and research, e.g. building a talent pool in research.


Current NGMN Advisors are:



Further Information about the activities carried out by the NGMN Advisors in technology areas in scope of NGMN, can be found in the Partner Portal.
Projects and Publications (Journal Papers, PhD Theses, Final Reports, etc.) from our NGMN Advisors in addition to contact information of advisors researchers is available in our Partner Portal under the Innovation Dialogue Work Group.


Innovation Day


NGMN held an Innovation Day in Stockholm in September 2011 on the topics of “Reconfigurable Radio/SDR”, “Cognitive Radio (CR)” and “Various Approaches for Efficient and Flexible Use of Spectrum” for mobile broadband services. The conference proved to be a unique platform for all stakeholders – industry, academia, regulators - to present and discuss the latest research findings and technology approaches. Additionally, telecom operators and manufacturers provided their view on the commercial viability of such new technologies. Other topics of interest touched included Green Radio and Electromagnetic Compatibility for the Environment, ECE or EMC (electromagnetic compatibility).


Following the 2011 Innovation Day, the NGMN established the “NGMN Innovation Dialogue”. The objective is to continue the discussion on some of the most interesting challenges which were presented at the Innovation Day.


The first area to focus in a first round of discussions for the Innovation Dialogue is the topic "Cognitive Radio and Small Cells" - as agreed in the Innovation Day 2011 concluding panel session. The NGMN Office will enable the dialogue as efficiently as possible; providing input and progress reports and facilitate the discussions within the NGMN Alliance.


Advisory Activities:


NGMN participates as External Advisory Board (EAB) member in EU Research Projects.


Currently, NGMN is member of the EAB of the project SAPHYRE (


SAPHYRE will demonstrate how equal-priority resource sharing in wireless networks improves spectral efficiency, enhances coverage, increases user satisfaction, leads to increased revenue for operators, and decreases capital and operating expenditures.


Other research related activities of interest:

  • Horizon 2020:
    Horizon 2020 will tackle societal challenges by helping to bridge the gap between research and the market. This market-driven approach will include creating partnerships with the private sector and Member States to bring together the resources needed.
  • Net!Works:
    Net!Works is contributing to preparation of "Horizon 2020" on
    - Research priorities
    - Implementation of the program
    Cooperation with other European Technology Platforms towards a white paper on Innovation
    - How to cooperate on Innovation
    - How to improve bringing research results to the market


Project Leaders

Feifei LOU (Lead), China Mobile
LEI Cao (Co-Lead), China Mobile


Contact: Klaus MOSCHNER, NGMN Office (office(at)




As the LTE technology evolves from 3GPP standardisation to real deployment by global operators, two issues are brought up to our attention which might impact the future success of the LTE global ecosystem:

  • UE chipset and implementation economy of scale
  • Global roaming support


Therefore, a single UE product implementation platform would be beneficial that supports all global operators' near term LTE deployments scenarios including both FDD and TDD, and plus necessary legacy network support for needed fallback mechanisms, multi-band devices may not meet the LTE deployment timeline requirements due to the RF limitation.



NGMN will work with UE (component) vendors to assess expectations and technology availability, both for near term and longer time frame of 2-3 years ahead, for multimode multiband UEs as soon as possible, so that a clear understanding on those detail trade-offs are visualized for LTE devices.


Scope and Objectives:


The scope of the project P-MBMM will be:

  • Collection of NGMN operators' input on their frequency bands for LTE deployment
  • Working with UE (component) vendors (potentially through multiple global organisations) for actions and results
  • Communication of findings to the relevant ecosystem players in terms of requirements and feasibility, and publication of findings


The objective of the project Requirements for Multi-Band, Multi-Mode UEs (P-MBMM) is to develop multimode multiband UE requirements and study the feasibility from operators and vendors such that a potential single UE platform supporting all feasible regional and global LTE/legacy bands that could be produced.





Project Leaders

Miguel ALVAREZ (Lead), Orange/FT
Frederic JOUNAY (Co-Lead), Orange/FT


Contact: Klaus MOSCHNER, NGMN Office (office(at)

This project aims to define requirements and to assess innovative ALL-IP transport solutions facilitating optimum backhauling (including self-backhauling).


It comprises a set of project streams:


  • Deployment Scenarios and Protocol Stacks (led by Alcatel-Lucent and Nokia Siemens Networks)
  • Backhaul Dimensioning (led by Cambridge Broadband Networks)
  • End-to-End Backhaul QoS (led by Huawei with Cambridge Broadband Networks, NEC, Tellabs)
  • Backhaul Security (led by Alcatel-Lucent)

Main Deliverables

Main deliverables of the project are/will be:


  • LTE backhauling deployment scenarios
  • Transport Provisioning for LTE
  • Quality of Service
  • Security
  • Phase/Time Synchronisation


Project Leader

Mohammad SHAHBAZ (Lead), KPN/E-Plus

Scope & Objectives

The NGMN Alliance has been carrying out Executive Workshops on Devices since 2007 with the objective to jointly review the next generation device roadmap with NGMN Partners, to identify gaps to vendors' or standards' planning and to agree on action plans. The overall goal is to ensure synchronised availability of end-user devices and network elements. In 2011, the 5th Executive Workshop on Devices will be held.


To ensure a solid and structured basis for tracking NGMN milestones for device availability, the workshop is based on a survey carried out prior to each workshop. The results of the survey will be presented and discussed during the Executive Workshop on Devices.


Project Leaders

Jinhan SONG (Lead), SK Telecom
Nathalie JOLLIVET (Co-Lead), Orange/FT

Scope & Objectives

The scope of this project is to


  • Understand the current status of QoS management capabilities enabled by SDOs and provided by suppliers
  • Understand the views toward QoS of industry parties (operators, vendors, 3rd parties)
  • Identify potential gaps between requirements for QoS and existing QoS capabilities
  • Explore how to implement QoS in networks efficiently with regards to technology and cost perspectives
  • Consider ways to solve potential barriers of implementing QoS (technical gaps, regulatory issues, etc.)

The objective of this project is to ensure the easy and cost effective implementation of end-to-end Quality of Service in LTE/EPC networks.


ZHANG Dawei (Chair), China Mobile
Philippe BESSON (Vice-Chair), FT / Orange

Contact: Klaus MOSCHNER, NGMN Office (office(at)

Scope & Objectives

NGMN recognises that trial and validation activities are vital to accelerate the development of the NGMN eco system and its services by taking into account the lessons learned from other/previous technologies. Concerted trial initiatives will lead to accelerated development cycles and early time to market.


The NGMN Alliance has established a Trial project to accompany, guide and leverage industry activities and initiatives in the field of testing and validation of NGMN candidate technologies.


Objectives of the NGMN Trial project: 

  • Set up a framework to enable open collaboration between NGMN Partners and external trial initiatives;
  • Consolidate and evaluate trial results for different NGMN candidate technologies;
  • Provide evidence of key technology capabilities in technical field trials and friendly customer trials;
  • Benchmark technologies  against common NGMN requirements and recommendations (White Paper 3.0).


NGMN has not setup or execute trials on its own, but has leveraged existing trial initiatives of NGMN Partners or other industry forums based on an open and transparent collaboration framework. In a first stage, the NGMN Trial project generated common trial requirements and test cases and provides these to the respective trial initiatives for consideration to get results in a consistent manner. In the second stage, the Trial project accumulated specific trial results delivered from those initiatives and evaluated these trial results against the NGMN requirements and recommendations.

Working Principle

The NGMN Trial project took into consideration all NGMN candidate technologies. The LTE/SAE trials were driven and executed by the so-called LTE/SAE Trial Initiative (LSTI, The development of 3GPP2 UMB was monitored with limited effort, since none of the NGMN Members was considerably involved in any UMB trials.


LTE/SAE Trial Initiative (LSTI)

The LTE/SAE Trial Initiative was an open initiative driven by vendors and operators founded in May 2007 and successfully concluded its work in January 2011. LSTI joined the leading operators and the key LTE/SAE. For more information visit


The main objectives of LSTI were:


  • Demonstrate 3GPP LTE/SAE capabilities
  • Stimulate development of LTE/SAE ecosystem
  • Promote industrialization of LTE/SAE
  • Promote LTE/SAE as NGMN technology
  • Consider NGMN and 3GPP requirements as input for LSTI tests


LSTI established different work streams to reflect the different stages in the technology development process. The Proof of Concept phase verified the basic LTE/SAE functionality and performance using pre-standard proprietary equipment. LSTI co-ordinated industry-wide interoperability testing of standards compliant equipment from different vendor pairs, stimulating early feedback into the standard. In 2009 LSTI demonstrated LTE capabilities and advantages in near-commercial conditions. Friendly users tested mobile broadband applications, using pre-commercial form factor terminals in several field trials. In January 2011, LSTI concluded its work and presented the outcomes at the Mobile World Congress 2011 (the presentation is available at
Presentation Package of Joint GSMA-NGMN Conference Stream - MWC).

Main Deliverables

Main deliverables of the NGMN Trial project:


  • Field Trial Requirements document (2 releases in 2008),
    Describes test requirements to enable the verification of the NGMN White Paper requirements through field trials, including
    - Trial setup recommendations
    - End-to-end proof point descriptions
    - Reporting recommendations;
  • Concept for NGMN-approved trials;
  • Evaluation reports on proof-of-concept, technical field trials, and friendly customer trials.


In the initial phase of the NGMN Trial activities, a collaboration framework was established defining the informal interface towards LSTI and towards the WiMAX trial activity, as well as legal and confidentiality aspects. Furthermore, the NGMN Field Trial Requirements were finalised.


The NGMN Ecosystem Working Group analysed critical success factors, use cases, enablers and potential barriers for a fertile mobile broadband ecosystem. It performed a gap analysis and developed a set of recommendations which were prioritised and led to new projects on QoS, API Standardisation, and Heterogeneous Networks. The results of the Ecosystem Working Group are available to NGMN Partners.

Main Deliverables

Main deliverables of the Ecosystem Working Group were:


  • Critical success factors and use cases for mass market adoption of NGMN-based services
  • Assessment of the enablers and barriers to a platform for innovation
  • Gap analysis and recommendations on how to foster a viable mobile ecosystem

An initial objective of the Ecosystem Working Group was to thoroughly analyse the mobile broadband ecosystem and identify critical success factors and potential barriers for mass market adoption of NGMN-based services. This analysis was supplemented by a priority list of issues to solve and by recommendations on the preferred approach for their adequate resolution.

Business Transformation in Mobile Industry (click to enlarge)
Business Transformation in Mobile Industry (click to enlarge)

Scope & Objectives

Successful Ecosystem & Platform for Innovation
A major goal of the NGMN Alliance is to create a successful ecosystem for next generation mobile broadband networks and services. This is underpinned by the vision of the NGMN Alliance to establish an open platform for innovation in the field of mobile broadband. To accomplish this, the NGMN Ecosystem Working Group considered end-to-end aspects relevant for developing innovative services as well as providing an optimal balance between affordable costs for end users and a viable and sustainable ecosystem. The challenge here was to ensure that adequate platforms, interfaces and protocols are provided which enable the creation of innovative services by as large a community as possible.

Maximising Benefits & Ensuring Sustainability
The NGMN Ecosystem Working Group focused on aspects which are crucial for maximising the benefits and sustainability of the entire mobile broadband ecosystem. The Working Group attempted to ensure that network applications of the future are natively mobile and that the devices used for mobile broadband access are usable and competitively priced. In addition, the Working Group focused on the creation of additional business models that allow effective partnerships and enable others (3rd parties) to innovate on top of the next generation mobile networks. It was the view of the Ecosystem Working Group that these new business models (partnering & enabling) should enable the ecosystem to be sustainable for many years to come.

Business Transformation
A key task of the Ecosystem Working Group was to list, highlight, and propose mechanisms that deal with the key issue of 'business transformation' resulting from the adoption of next generation mobile networks and services. This transformation requires a dramatic change of character for the mobile industry. For example it was envisioned that the mobile industry would need to:

  • Move towards faster development cycles;
  • Speed-up its investment cycles, with a reduction in investment needs & shorter lead times;
  • Develop a more entrepreneurial spirit by encouraging risk taking to gain rewards;
  • Increase its ability to forge temporary partnerships;
  • Increase its numbers and types of innovators.

The Ecosystem Working Group aimed to devise ways of enabling this transformation in the mobile industry.

The Ecosystem Working Group was established in 2008 aiming at analysing the more businesss-related aspects of the NGMN goald to create a successful ecosystem for next generation mobile broadband networks and services. The Ecosystem Working Group concluded its work in 2009 with a set of recommendatations that resulted in the creation of several Projects (QoS, Heterogeneous Networks, API Standardisation).


Contact: Monika BINDER, NGMN Office (office(at)


Technology Evaluation (TF-TEVAL)

In an extensive exercise, the TWG performed a comprehensive technology evaluation of the NGMN candidate technologies

  • 3GPP Long Term Evolution (LTE/SAE);
  • 3GPP2 Ultra Mobile Broadband (UMB);
  • IEEE 802.16e/m (Mobile WiMAX).

Against the NGMN White Paper requirements and recommendations. This analysis covered the following four areas of evaluation criteria: Performance, Functionalities, Interworking, and Time-to-Market. The technology evaluation task was very actively supported by the NGMN Sponsors (vendors/manufacturers) who made valuable technical contributions w.r.t. radio performance results (simulations and measurements), performance optimization, as well as confidential information about their development roadmaps (for anonymous evaluation).


“Based on the results of technology evaluation, the NGMN board concluded in June 2008 that LTE/SAE is the first technology which broadly meets NGMN recommendations. The NGMN Alliance therefore approves LTE/SAE as its first compliant technology”. This project has reached TG2 (Closure).

Gap Analysis and Standards Contributions (TF-GA)

The TWG performed on a regular basis a comprehensive gap analysis on the level of coverage of each individual NGMN requirement and recommendation by the relevant technical standards. Requirement specifications and significant technical contributions were provided to standards development organisations (SDOs) such as 3GPP, 3GPP2, IEEE and the WiMAX Forum, e.g. in the areas of system architecture, functionalities, performance, service capabilities, and interoperability. These contributions were submitted either via official liaison statements from the TWG or via individual input documents in the name of various NGMN Members.

Terminal Aspects (P-TER)

This project supported and promoted early device specifications and readiness through recommendations, inputs and complementary work where necessary and appropriate. This project has reached TG2 (Closure). See downloads for the deliverable of this project.

Terminal Certification (P-TCER)

This project aimed to recommend on necessary improvements in the current certification process (GCF, PTCRB, CCF etc..), to give guidance to the relevant standards bodies to timely deliver test cases and test environments, to liaise with other NGMN WG’s/projects to ensure that the prioritised feature set and test case requirements were made available as a matter of urgency and to follow-up on the prioritised improvement proposals identified in the GAP Analysis. This project has reached TG2 (Closure).

Self-Organizing Networks and Self-Optimization (P-SON)

The objective of this project was to increase the usage of self organizing functionality in LTE and define a common view on typical use cases with the target to simplify operability. These use cases were be the basis for deriving solution proposals and finally define requirements which represent a common NGMN point of view. With the help of this joint initiative suppliers shall be invited to deliver solutions to the SON requirements. This project has reached TG2 (Closure). See downloads for the deliverables of this project.

Security (P-SEC)

The objective of this project was to assure that the end-to-end security and security as described in the NGMN White Paper "Next Generation Mobile Networks Beyond HSPA & EVDO" are targeted and clarified, to give recommendations and co-operate with organisations addressing security to address the identified gaps. This project has reached TG2 (Closure).

Support of Broadcast and Multicast (P-SBM)

This project defined NGMN operators' requirements to provide broadcast and multicast services, together with unicast services, in a cost and spectral efficient way. Scope includes radio and core networks, spectrum, and different aspects of broadcast. This project has reached TG2 (Closure) and the deliverable can be found at Download Broadcast and Multicast – Recommendations & Requirements (P-SBM)

System Architecture Harmonisation (P-SAH)

This project defined the system architecture harmonization framework (stage 1-2) of all network elements including, e.g. converged mobility management for the TISPAN and NGMN environment:

  • Harmonised PCC/QoS for TISPAN and NGMN environment
  • Common IMS for TISPAN and NGMN
  • Harmonized VCC/MMSC for the TISPAN and NGMN environment
  • Converged mobility management for the TISPAN and NGMN environment.

This project has reached TG2 (Closure).

Operational Efficiency (P-OPE)

The objective of this project was to further enhance the SON & O&M area with new use cases and optimise recommendations on functional and operational aspects. The project also performed additional work and effective inputs into the standards with regards to Multi-vendor RAN to achieve true-multi vendor RAN for commercial deployment and to study all HeNB-Macro operational use cases. This project has reached TG2 (Closure).

Multi-Vendor RAN (P-MVR)

The objective of this project was to avoid partly open interfaces, to cover O&M Aspect, to ensure multi-vendor interoperability of LTE System, to ensure Multi vendor aspects are covered in 3GPP standards, and to clarify the testing philosophy of LTE products. This project has reached TG2 (Closure).

Initial Terminal Device Definition (P-ITDD)

The objective of this project was to provide from an NGMN perspective the generic definition of what would comprise an initial release NGMN terminal/device considering a macro view of the marketplace needs on a global and/or regional basis balanced against the practical reality of terminal/device implementation for an initial market timeframe of 2010. This project has reached TG2 (Closure). See downloads for the deliverable of this project.

Initial Deployment Targets (P-IDT)

This project prioritised first/initial deployment targets for NGMN w.r.t.

  • Frequency bands and system bandwidths to be supported by initial HW
  • Multi-standard and multi band requirements for terminals and base stations
  • Inter-system mobility requirements

to guide the industry (vendors and partly SDOs) on their development work. This project has reached TG2 (Closure).

Database Convergence (P-DC)

The objective of this project was to consolidate NGMN operator requirements, to evaluate benefits of user data centric approach, to evaluate cost reduction potential (CAPEX/OPEX), to define adaptation functions. This project has reached TG2 (Closure).

Bandwidth Aggregation (P-BAG)

Delivering user data rates and spectrum efficiencies promised by NGMN technologies requires bandwidths up to 20 MHz. As many operators do or did not have 20 MHz of contiguous spectrum, especially in bands below 2 GHz, bandwidth aggregation offers a technical solution to efficiently utilise existing spectrum. The objectives of P-BAG were:

  • To determine NGMN community's requirements for bandwidth aggregation
  • Conduct high level technical analysis to determine feasible bandwidth aggregation scenarios
  • Develop technical requirements specification for 3GPP for prioritised bandwidth aggregation scenarios

This project has reached TG2 (Closure).

Activities & Projects

Organisation & Governance

Due to the wide range of different technical topics that were addressed within the NGMN Technical Work Programme, the TWG was organised via a series of dedicated Projects. Each of these Projects is initiated and approved by the NGMN Operating Committee and Board (see ABOUT US / ORGANISATION) and had defined objectives and deliverables that needed to be produced to achieve the NGMN and TWG targets. These Projects involved technical experts from the NGMN Members, Sponsors, and Advisors which may adopt different participation roles, i.e. as a Project Lead, Contributor or Reviewer, see WORK PROGRAMME / OVERVIEW


The overall TWG project portfolio and the priorities, resources and progress in the individual TWG Projects were managed and supervised by a TWG Steering Committee with technical representatives from each NGMN Member organisation. The TWG Steering Committee guided the review process for all TWG deliverables within the NGMN Alliance and ensured overall quality and alignment for each deliverable. Final approval of the deliverables was granted by the Operating Committee and/or Board.


The Technical WG comprised the following Projects:

Scope & Objectives

According to the White Paper on Next Generation Mobile Networks beyond HSPA & EVDO the main objectives of the NGMN Alliance were:

  • To provide a vision for technology evolution beyond 3G for the competitive delivery of broadband wireless services to increase further end-customer benefits.
  • To establish clear performance targets, fundamental recommendations and deployment scenarios for a future wide area mobile broadband network, and to make sure that its price/performance ratio is competitive with alternative technologies.
  • To complement and support the work within standardisation bodies by providing a coherent view of what the operator community is going to require in the decade beyond 2010.

Technical Challenges of NGMN

These objectives involved great challenges in the technical area, and in fact, the NGMN White Paper lists a plenitude of requirements and recommendations on virtually all technical aspects of next generation mobile systems. A few of the most prominent requirements on NGMN technologies and systems are:

  • Peak data rates in the downlink beyond 100 Mbit/s (> 40 Mbit/s cell average);
  • Peak data rates in the uplink beyond 50 Mbit/s;
  • Spectrum efficiency and cell throughput (capacity) 3 –  5 times better than 3G/HSPA and CDMA-2000/EVDO;
  • Low latencies (round-trip times) of 20 – 30 ms end-to-end;
  • Flat All-IP network architecture, with open interfaces, legacy interworking, optimised routing, and always-on support; §  Seamless mobility in indoor, pico/micro-cellular, metropolitan and wide-area deployment scenarios;
  • Easy and cost-efficient network deployment leveraging advanced self-organisation, self-configuration and self-optimisation techniques;
  • Flexible allocation of radio channel bandwidths in the range between 1.25 MHz and 20 MHz, utilising FDD and/or TDD duplex modes;
  • Operation in a wide range of frequency bands between 400 MHz and 5 GHz taking into account the ITU spectrum identified for IMT-2000 and IMT-Advanced systems;
  • High-performance, attractive, and affordable end-user devices.

Objectives of the Technical Working Group (TWG)

The Technical Working Group (TWG) of the NGMN Alliance addressed all technical aspects of next generation mobile networks, devices/terminals and services, including standardisation, industrialisation and testing aspects. The TWG pursued the following four high-level objectives:

  • To ensure that the relevant technical standards meet the requirements and recommendations of NGMN and are finalised in time to enable initial commercial deployment of NGMN systems and services in 2010 (i.e. first standards releases finalised by end of 2008);
  • To identify and analyse critical gaps in the relevant technical standards and support the standards development organisations in filling these gaps through dedicated technical contributions from the NGMN community;
  • To thoroughly evaluate the candidate technologies for NGMN against the NGMN requirements and provide guidance on the NGMN compliant technology.
  • To foster timely development and delivery of NGMN network infrastructure and end-user devices with global interoperability and excellent cost-performance ratios.

From July 2007 to February 2008, the following standards and technologies were evaluated within the TWG with respect to their suitability for next generation mobile networks: 

  • LTE/SAE, IEEE 802.16e & 802.20, UMB

“Based on the results of technology evaluation, the NGMN board concluded in June 2008 that LTE/SAE is the first technology which broadly meets NGMN recommendations. The NGMN Alliance therefore approves LTE/SAE as its first compliant technology”.