Inventor
Zhang yi hai
CA4 patents
Patents
4 patentsUS10165485B2Dec 25, 2018
Method for selecting a cellular network
BLACKBERRY LTD3 citations71
US9942816B2Apr 10, 2018
Method for selecting a cellular network
BLACKBERRY LTD4 citations71
US10506540B2Dec 10, 2019
Reliability of VoLTE/ViLTE calls
BLACKBERRY LTD0 citations51
US10009865B2Jun 26, 2018
Reliability of VoLTE/ViLTE calls
BLACKBERRY LTD0 citations51