id	keyword
hssr-411	europe
hssr-411	mobile
hssr-411	network
hssr-411	european
hssr-411	deployment
hssr-411	research
hssr-411	technology
hssr-411	mhz
hssr-411	ghz
hssr-411	operators
hssr-411	spectrum
hssr-411	investment
hssr-411	new
hssr-411	global
hssr-411	access
hssr-411	note
hssr-411	r&d
hssr-411	vol
hssr-411	humanities
hssr-411	infrastructure
hssr-411	science
hssr-411	spread
hssr-411	china