ECC Recommendation on Frequency planning and frequency coordination for Land Mobile systems operating at 26 GHz.

Harmonised spectrum regulatory conditions for “aerial UEs” in the suitable MFCN bands ensure visibility for UAs standardisation, market development while ensuring confidence of all spectrum users,

This ECC framework will be also the relevant basis to trigger additional standardisation activities in ETSI on “out of band emission limits”, where appropriate and to enable practical implementation of “no fly zone”, at national level where needed.

ECC Decision on MFCN harmonisation, comprising a band plan and technical conditions suitable for 5G, taking into account the radio applications according to ERC Report 25 (ECA table)

Refer to EC “Mandate to CEPT to develop least restrictive harmonised technical conditions suitable for next-generation (5G) terrestrial wireless systems for priority frequency bands above 24 GHz” regarding Tasks 1, 2 and 4

Deliverables:

• March 2021 : draft for public consultation
• July 2021: final report

FSS Toolkit 40 GHz – Those guidelines /toolkits will address, as appropriate, methodology of calculations of coordination zones /contours. Also other elements such as examples of national approaches for clutter losses and deployment of FSS earth stations could be developed.

Assessment of susceptibility of deployed RA receivers operating in 4200-4400 MHz, while taking into account any civil aviation initiatives on improving RA receivers, in order to study the following compatibility scenarios:

1)    Unwanted emissions from MFCN operating in 3400-3800 MHz into 4200-4400 MHz radio altimeters band

2)    Impact of blocking of radio altimeters from 3400-3800 MHz MFCN in-band emissions

It is recognised that realistic scenarios and parameters for RA and MFCN AAS parameters are needed before compatibility studies can be commenced.

Based on the results of the study, consider the need for possible future steps, e.g. improvement of RA susceptibility to interference, in particular regarding blocking characteristics.

It is to be noted that radio altimeters are used globally and once installed they are used over many years. Therefore, development of future MOPS(Minimum Operational Performance Standards) for RA should be forward-looking as well as considering the various 5G MFCN deployments already existing in frequency bands both below 4.2 GHz as well as above 4.4 GHz, in both Europe and globally. 

Develop a summary of potential metrics that can be used for measuring 5G coverage (availability of 5G services) and user experience (performance) considering 5G-NR using AAS and non-AAS:

1) Describe various aspects of 5G-NR in the different frequency ranges designated for MFCN, including beamforming of control and data channels to highlight differences with earlier generations of mobile technologies also including 5G-NR within MFCN network using DSS (dynamic spectrum sharing)

2) Describe practical options for defining coverage requirements by collecting data both via network management tool and in the field considering available measurement solutions and identifying the pros and cons of the different options.

ECC Report 231 summarises various methods used by administrations to determine coverage obligations in force and how they are controlled/assessed. The report highlights the need to develop practical field measurement methods for LTE.

Meanwhile, 5G-NR implementing AAS have added more flexibility to the air interface along with beamforming. These aspects need to be taken into account when considering conventional methods to set coverage requirements or reporting on 5G coverage and performance for 5G-NR,especially in the context of AAS systems in the different frequency ranges designated to MFCN.