Despite continuing growth in mobile network coverage, there are many areas where enterprise users suffer from no, or poor, connectivity. Manufacturing, agricultural and transport industries in these regions suffer from their remote locations, and they often find that their ability to benefit from Industry 4.0 – the automation through connected machines – is limited. This[…]
This study for the Office of the Communications Authority (OFCA) provided an independent assessment of the impacts on service quality arising from reassignment of 900 MHz and 1800 MHz spectrum in Hong Kong. The assessment model developed by Plum analysed the network infrastructure requirements of mobile network operators under various market, technology evolution and spectrum[…]
Plum have recently collaborated with Huawei in undertaking a number of studies intended to clarify options for spectrum sharing in C-band. The report linked here addresses issues relating to the co-existence of LTE services and satellite downlinks in the same, or adjacent, spectrum. The report describes realistic field trials which illustrate the potential for geographical[…]
Plum has provided expert technical support to ComReg in relation to the future licensing and use of the 3.6 GHz band (3400 – 3800 MHz) in Ireland, following the expiry of existing rights of use for fixed wireless access local area (FWALA) licences in 2017. This included advising on the appropriate technical and other conditions[…]
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,[…]
We undertook a number of modelling studies for Ofcom in 2014-2015, to inform their policy on technical conditions relating to the release of 700 MHz broadcast spectrum for mobile use. The most likely band-plan involved the user equipment (UE) handsets transmitting at frequencies immediately above the remaining broadcast allocation, with base stations assigned spectrum higher[…]
We have provided specialist technical advice to ‘Digital Mobile Spectrum Limited’, the UK body charged with managing issues of LTE to DTT interference at 800 MHz LTE. This work has involved a number of strands including; the development of algorithms and computer models for the site-specific prediction of interference from mobile base stations to domestic DTT receivers;[…]
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[…]
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[…]
The aim of the study was to gain a better understanding of radio signal variability in different clutter types in order to aid the modelling of potential coexistence issues with DTT using the UK DTT planning model. Using our survey vehicle extensive measurements at different antenna heights and locations were carried out to gain detailed understanding[…]