相關UFB的文學知識

UFBUltra-Fine&BrightWirelessspectrumisallocatedforusebythenationtoday,andWirelessspectrumisdividedintotwoparts:thelicensedfrequencyband(LFB)andunlicensedbands(UFB).目前，無線頻譜資源由國家統一分配使用，無...