Public Sector Spectrum Release (PSSR): Technical coexistence issues for the 2.3 and 3.4 GHz award

Start: 19 February 2014 Status: Closed End: 15 May 2014

This document sets out Ofcom’s strategy to ensure users of wireless cameras and video links in the programme making and special events (PMSE) sector continue to have access to sufficient spectrum to support their activities.

The strategy sets out long term access for video PMSE users to the 2 GHz to 2.3 GHz band, as well as greater use of spectrum in the 7 GHz band. This follows a likely reduction in spectrum available to these users after the proposed award of spectrum in the 2.3 GHz and 3.4 GHz bands in late 2015 or early 2016.

There will be continued access to the award bands where possible through coordination with new licensees in order to support major events.

As well as showing how these plans meet current demand, Ofcom has also published an independent study into technology developments in the PMSE sector and potential future demand. The conclusions of this study provide evidence that the long term needs of the sector can be met.

This document sets out a further analysis of potential coexistence issues between new mobile broadband services in the 2.3 GHz band and Wi-Fi and other services in the neighbouring 2.4 GHz band.

This follows a consultation published in February 2014.

The Ministry of Defence is releasing the 2.3 and 3.4 GHz bands to Ofcom for award in late 2015 or early 2016, through an auction, as part of the Public Sector Spectrum Release programme. We expect both award bands to be of interest to mobile network operators wanting to provide extra capacity for mobile broadband.

The 2.4 GHz band is accessed by various services on a licence exempt basis, including Wi-Fi. Our assessment is that there will be very little impact from mobile services in the 2.3 GHz band. If interference does occur, there are some mitigations available, the most effective being use of the alternative 5 GHz Wi-Fi band.

This document also assesses coexistence issues for radar and satellite operating close to the 3.4 GHz band. We set out how interference will be avoided.

Our final decisions on technical coexistence issues will be published alongside our decisions on auction design in 2015.

Award of the 2.3 and 3.4 GHz spectrum bands: Update on the coexistence of 2.3 GHz LTE with Wi-Fi in the 2400 to 2483.5 MHz range and other coexistence issues   PDF, 1.9 MB

The documents below have been produced independently of Ofcom and are published here for information. Although we have taken account of the evidence they present, the documents do not necessarily reflect the views of Ofcom.

Wi-Fi and LTE 2.3 GHz co-location field testing, Executive summary   PDF, 2.1 MB

Wi-Fi and LTE 2.3 GHz co-location field testing   PDF, 4.5 MB

Wi-Fi and LTE co-location, general performance trending addendum   PDF, 3.4 MB

OptiWi-fi report 2.3 & 2.4 GHz coexistence   PDF, 1.8 MB

ALD compatibility testing against 2.3GHz LTE, TDD signals at UK Ofcom Baldock June 2014: Summary of results PDF, 2.9 MB

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