Expanding digital connectivity through satellite broadband in the 28 GHz band in Africa

Following our report on the use of 28 GHz (27.5-29.5 GHz) spectrum in the Asia Pacific region, this Plum paper considers the importance of the band for satellite use in Africa. With large parts of the continent not covered by existing telecommunications networks, next-generation high throughput satellite (HTS) systems are capable of delivering gigabit connectivity[…]

Satellite filing and regulatory processes

Plum produced two research reports on satellite filing and associated regulatory processes to support a client on the development of its strategy for next-generation wireless communications. The first report examined the regulations and processes for securing access to spectrum and orbital positions for satellite services, including case studies on Starlink (SpaceX) and OneWeb. The second[…]

Expanding digital connectivity through satellite broadband in the 28 GHz band

This Plum paper considers the importance of the 28 GHz band (27.5-29.5 GHz) for satellite use in Asia Pacific. Next-generation high throughput satellite (HTS) systems are capable of delivering gigabit connectivity and the 28 GHz band is a key enabler to achieving this. For emerging Asian markets satellite deployments in the Ka-band can contribute to[…]

UHF propagation in mountainous terrain

Digital Mobile Spectrum Limited (DMSL) and the four UK MNOs are required to propose a propagation model to Ofcom with which to assess the geographical coverage of the Shared Rural Network. Standard propagation models are unlikely to give reliable predictions in the mountainous terrain where the SFN is to be deployed. Plum were contracted to[…]

Opportunity study for small cells in 26 GHz band in France

Plum carried out for ARCEP (France) an independent exploratory study about the opportunities and deployment options for small cells in the 26 GHz band in France. The study was of two parts: a qualitative study identifying the technical, economic, and social opportunities potentially offered by use cases in the 26 GHz band, and a quantitative[…]

Challenges of World Radio Conference studies: 10 GHz spectrum

The outcome of the World Radio Conference 2019 (WRC-19) has now been disseminated, changes to regulations and technical licence conditions are being implemented and spectrum awarded. Attention is now turning to the agenda items identified for the next World Radio Conference, scheduled for 2023 (WRC-23). Preparatory work will be starting within ITU-R, as well as[…]

Status of 5G field trials for connected and autonomous vehicles in Europe and North America

Plum produced a report for the Telecom Technology Center on the status of field trials involving connected and autonomous vehicles (CAVs) in Europe and North America. The report provided a selection of case studies involving the use of cellular technology (4G/5G) in developing: vehicle-to-everything technologies enabling interaction with infrastructure, other vehicles, networks and pedestrians; and[…]

It is all down to timing – spectrum transitioning

One of the more challenging aspects of spectrum management is ensuring the timely and orderly transition of frequencies where they are awarded to a new licensee. Where the frequencies are being used by incumbents to provide services, and there are no alternative providers or technologies available for end-users, it is particularly important to develop a[…]

Cross border considerations

It is a well-known scientific fact, but one that is sometimes ignored, that radio waves do not respect borders between countries and geographic regions. This means that radio networks deployed in one country or region can cause interference to networks deployed across the border. The impact of the interference can vary considerably and in the[…]