Useful Terms

Vocab Glossary


OMR (Open Market Review)

A process undertaken by local and national governments to ascertain the current state of broadband coverage in an area.  Typically this process will involve inviting suppliers to submit mapping and details of their coverage and offerings so as to remove properties from rounds of publicly funded (state aid) intervention in the broadband market.


NGA (Next Generation Access)

Next Generation Access is a term coined by the UK government to define a set of criteria for an ‘acceptable’ broadband connection.  Typically this is now defined as delivering ‘at least’ 30 Mbps download to the user.  NGA assessment is a process many ISPs and wholesale providers go through to demonstrate the quality and stability of both their network and business to local government.  This is seen as a key step to preventing overbuild in a state aid funded procurement.



Broadband Delivery UK are the team within the Department of Culture, Media and Sport (DCMS) tasked with improving the UK’s broadband infrastructure.


Network Dimensioning

Network dimensioning is the process of calculating the cumulative bandwidth used between the core and edges of a network, and the capacity required on each link to meet this demand.


Overbuild / Overbuilding

Overbuild in the service provider sector is the process of one provider building their network over the top of an existing provider’s network footprint and offering services to the same customers.  In the commercial world, this is regarded as standard competitive process.  However, it is contentious where providers have received state aid (funding) to build this infrastructure.  The OMR process is designed to prevent this happening and guard against the inefficent spending of public money.  However, due to the long build contract periods (often 3 years), issues do arise.


Frequency Reuse

Frequency reuse is a technology used by wireless providers to get better use out of limited frequency space.  A time source is used to time the transmission and receiving of data among co-located or co-facing radios to reduce the chance of collisions and thus data loss.  Typically, this is used by Wireless ISPs utilising the 5 GHz spectrum space.



Latency is the time delay between one packet leaving a device and arriving at its destination.  Lower latency is desirable in all sections of a network and vital to many services, such as VoIP.  While easy to keep low on fibre-based networks, it often poses a challenge for Wireless ISPs.  Latency is normally measured in milliseconds (ms) and should be a KPI for any network.



Jitter is the difference between the highest latency and the lowest latency levels over a period of time.  Jitter often makes an otherwise fast connection feel unstable and can cause significant degradation of service in real-time applications, such as video- and voice-calling.


EUP (End User Premise)

EUP is a term used by ISPs and wholesale network providers to describe the property at which the service is used by the end user (the client).  This would for example be a home or an office.