Arm has returned to co-lead 5G network product manufacturer Blu Wireless's latest round after previously backing the Bristol spinout in 2017.

Blu Wireless, a UK-based developer of 5G communication technologies spun out of University of Bristol, has obtained £12.7m ($16.6m) in growth funding from investors co-led by mobile chipset manufacturer Arm.
The round was also co-led by Calculus Capital, Kendall and MGL, with participation from Guinness Asset Management.
Founded in 2009, Blu Wireless supplies connectivity technology for wireless network applications that enables the operator to limit latency and instability in data speeds.
The company is currently focusing on a 5G telecoms technology known as millimeter wave that could help clients such as transport networks deliver reliable multi-gigabit speeds.
Blu Wireless already has a partnership in place with train operator First Group to implement its technology in the UK, and also expects to win business from the so-called industry 4.0 segment.
Blu Wireless will aim to scale its operations with new recruits across sales, software development and customer support. In addition to its headquarters in Bristol, Blu Wireless recently opened an outpost in India.
The spinout previously received $12.5m in a 2017 round led by Arm that featured Calculus Capital, after a $3.1m angel round in 2013 led by Qi3 Accelerator and backed by Angel Co-Fund, Wren Capital, London Business Angels 2013 EIS Fund and a group of private investors.