PPDR transformation centre

Plum was part of a consortium examining all aspects of Public Protection and Disaster Relief (PPDR) systems under European research programme FP7. Plum was involved in the development of the reference usage scenarios with the aim of identifying the typical current and anticipated future operational scenarios faced by PPDR operatives and the related communications needs,[…]

Technical and pricing study on private mobile radio and trunked radio systems in Singapore

Plum and Aegis advised the IDA on technical, pricing and other assignment approaches for addressing congestion issues in the 400 MHz and 800 MHz bands used to deploy trunked radio systems (TRS) and private mobile radio (PMR) networks in Singapore. The study examined the likely development of standards and availability of equipment for PMR and[…]

Future demand for M2M applications

A study undertaken with Machina and William Webb identified the likely future demand for M2M applications and the development of key standards. Comparisons were provided in terms of predicted demand between 2012 and 2022 for different sectors (for example health care, smart cities, intelligent buildings) between Singapore and the Asia-Pacific market. The study considered the different[…]

Plum Aegis Merger

Plum Consulting London LLP and Aegis Systems Limited announced today that they have entered into an agreement under which the business operations of Aegis Systems will become part of Plum. Plum is a leading provider of strategy, policy and regulatory advice on telecommunications, spectrum, online and media issues. Aegis Systems is a preeminent independent provider[…]

Interference studies in the 2.3 GHz band

MOD had been considering the implications of clearing spectrum for release in the 2.3 GHz bands.  This involved not only re-planning the frequency use of existing and future MOD systems but also consideration of the potential for interference to and from these systems with respect to anticipated use of the released spectrum, namely LTE.  These studies provided[…]

Sharing between IMT and DTT

This study considered the feasibility of co-channel co-existence between IMT and DTT systems operating in the 470 – 694/698 MHz band. The study focussed on the impact of interference from IMT into DTT systems. Due to relatively high antenna gains, EIRP values and fixed antenna masts positioned above the clutter, the protection of DTT receivers[…]

Co-existence in 1.4 GHz band

Undertook a number of interference studies to examine the potential of releasing the 1.4 GHz band for mobile as part of the preparations for WRC-15.   This included development of co-channel and adjacent band interference scenarios to examine the impact of IMT emissions on radar receivers operating in 1300-1400  MHz band; investigation into the potential for co-channel[…]

Frequency band support for future mobile handsets

The study undertaken with the consulting firm RTT reviewed the evolution of global cellular frequency bands and multi-band handset support and considered the design challenges associated with supporting new frequency bands and the associated costs and benefits of such support.  The likely relationship between the number of frequency bands supported and the RF cost and[…]