00463nam a22001577a 450000500170000000800410001702000180005804000130007608200200008924500890010926000410019830000110023965000140025065000260026465000150029020211023152147.0211023b           ||||| |||| 00| 0 eng d  a9783030581961  cPK-LaUMT  a621.38456bFIV-  a5G and beyond :bfundamentals and standards /cedited by Xingqin Lin and Namyoon Lee  aCham, Switzerland :bSpringer,c2021  a543 p.  a5G mobile  aCommunication systems  a5G  and 6G