The UK's mobile providers are being banned from buying new Huawei 5G equipment after 31 December, and they must also remove all the Chinese firm's 5G kit from their networks by 2027.


Digital Secretary Oliver Dowden told the House of Commons of the decision.

It follows sanctions imposed by Washington, which claims the firm poses a national security threat - something Huawei denies.


Mr Dowden said the supply ban would delay the UK's 5G rollout by a year.


The technology promises faster internet speeds and the capacity to support more wireless devices, which should be a boon to everything from mobile gaming to higher-quality video streams, and even in time driverless cars that talk to each other. 


5G connections are already available in dozens of UK cities and towns, but coverage can be sparse.


Mr Dowden added that the cumulative cost of the moves when coupled with earlier restrictions announced against Huawei would be up to 2bn, and a total delay to 5G rollout of "two to three years".


"This has not been an easy decision, but it is the right one for the UK telecoms networks, for our national security and our economy, both now and indeed in the long run," he said.


Because the US sanctions only affect future equipment, the government has been advised there is no security justification for removing 2G, 3G and 4G equipment supplied by Huawei.


However, when swapping out the company's masts, networks are likely to switch to a different vendor to provide the earlier-generation services.


Huawei said the move was "bad news for anyone in the UK with a mobile phone" and threatened to "move Britain into the digital slow lane, push up bills and deepen the digital divide."


The action, however, does not affect Huawei's ability to sell its smartphones to consumers or how they will run.


China's ambassador to the UK said the decision was "disappointing and wrong".

"It has become questionable whether the UK can provide an open, fair and non-discriminatory business environment for companies from other countries," tweeted Liu Xiaoming.


Broadband switch


New restrictions will also apply to use of the company's broadband kit.


Operators are being told they should "transition away" from purchasing new Huawei equipment for use in full-fibre networks, ideally within the next two years.

Mr Dowden said the government would "embark ona short technical consultation" with industry leaders about this.


He explained that the UK needed to avoid becoming dependent on Nokia - which is currently the only other supplier used for some equipment - and he wanted to avoid "unnecessary delays" to the government's gigabit-for-all by 2025 pledge.


BT's Openreach division told the BBC it had in fact recently struck a deal to buy full-fibre network kit from a new supplier - the US firm Adtran - but first deliveries would only start in 2021.


Chip concerns


The UK last reviewed Huawei's role in its telecoms infrastructure in January, when it was decided to let the firm remain a supplier but introduced a cap on its market share.


But in May the US introduced new sanctions designed to disrupt Huawei's ability to get its own chips manufactured. The Trump administration claims that Huawei provides a gateway for China to spy on and potentially attack countries that use its equipment, suggestions the company strongly rejects.


The sanctions led security officials to conclude they could no longer assure the security of its products if the company had to start sourcing chips from third-parties for use in its equipment.


The minister cited a review carried out by GCHQ's National Cyber Security Centre as being the motivation for the changes.


NCSC has said Huawei products adapted to use third-party chips would be "likely to suffer more security and reliability problems".


BT and Vodafone had warned that customers could face mobile blackouts if they were forced to remove all of Huawei's 5G kit in less time.





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UK bans Huawei 5G networks




The UK's mobile providers are being banned from buying new Huawei 5G equipment after 31 December, and they must also remove all the Chinese firm's 5G kit from their networks by 2027.


Digital Secretary Oliver Dowden told the House of Commons of the decision.

It follows sanctions imposed by Washington, which claims the firm poses a national security threat - something Huawei denies.


Mr Dowden said the supply ban would delay the UK's 5G rollout by a year.


The technology promises faster internet speeds and the capacity to support more wireless devices, which should be a boon to everything from mobile gaming to higher-quality video streams, and even in time driverless cars that talk to each other. 


5G connections are already available in dozens of UK cities and towns, but coverage can be sparse.


Mr Dowden added that the cumulative cost of the moves when coupled with earlier restrictions announced against Huawei would be up to 2bn, and a total delay to 5G rollout of "two to three years".


"This has not been an easy decision, but it is the right one for the UK telecoms networks, for our national security and our economy, both now and indeed in the long run," he said.


Because the US sanctions only affect future equipment, the government has been advised there is no security justification for removing 2G, 3G and 4G equipment supplied by Huawei.


However, when swapping out the company's masts, networks are likely to switch to a different vendor to provide the earlier-generation services.


Huawei said the move was "bad news for anyone in the UK with a mobile phone" and threatened to "move Britain into the digital slow lane, push up bills and deepen the digital divide."


The action, however, does not affect Huawei's ability to sell its smartphones to consumers or how they will run.


China's ambassador to the UK said the decision was "disappointing and wrong".

"It has become questionable whether the UK can provide an open, fair and non-discriminatory business environment for companies from other countries," tweeted Liu Xiaoming.


Broadband switch


New restrictions will also apply to use of the company's broadband kit.


Operators are being told they should "transition away" from purchasing new Huawei equipment for use in full-fibre networks, ideally within the next two years.

Mr Dowden said the government would "embark ona short technical consultation" with industry leaders about this.


He explained that the UK needed to avoid becoming dependent on Nokia - which is currently the only other supplier used for some equipment - and he wanted to avoid "unnecessary delays" to the government's gigabit-for-all by 2025 pledge.


BT's Openreach division told the BBC it had in fact recently struck a deal to buy full-fibre network kit from a new supplier - the US firm Adtran - but first deliveries would only start in 2021.


Chip concerns


The UK last reviewed Huawei's role in its telecoms infrastructure in January, when it was decided to let the firm remain a supplier but introduced a cap on its market share.


But in May the US introduced new sanctions designed to disrupt Huawei's ability to get its own chips manufactured. The Trump administration claims that Huawei provides a gateway for China to spy on and potentially attack countries that use its equipment, suggestions the company strongly rejects.


The sanctions led security officials to conclude they could no longer assure the security of its products if the company had to start sourcing chips from third-parties for use in its equipment.


The minister cited a review carried out by GCHQ's National Cyber Security Centre as being the motivation for the changes.


NCSC has said Huawei products adapted to use third-party chips would be "likely to suffer more security and reliability problems".


BT and Vodafone had warned that customers could face mobile blackouts if they were forced to remove all of Huawei's 5G kit in less time.





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