Nextel MexicoはNII Holdings傘下の移動体通信事業者であったが、AT&T MobilityはHII HoldingsよりNextel Mexicoの買収を完了した。 買収額は18億7,500万米ドル(約2,220億円)で、買収内容にはメキシコにおける周波数のライセンス、ネットワーク設備、販売店、加入者が含まれて CDMA stands for "Code Division Multiple Access.". GSM stands for "Global System for Mobiles.". They are 2 radio networks used by wireless carriers. If the GSM/CDMA divide has popped up on your radar, it's likely because you tried to transfer a phone from one carrier's service to another and encountered roadblocks. Differences Between GSM and CDMA Technology. Both GSM and CDMA standards get multiple access, meaning that a large number of calls can go through a single cell phone tower. However, the one chief difference between the two standards involves the way the data is transformed through the radio waves a smartphone receives and broadcasts. GSM vs CDMA: The Main Differences. While both GSM and CDMA are multiple access standards, allowing multiple calls to go through a single tower, the major difference lies in the way your data is converted into the radio waves that your phone broadcasts and receives. Network coverage doesn't depend on whether it is a GSM or CDMA network, but 日本のNTT docomoとSoftbank、アメリカのAT&TとT-MobileがGSM（W-CDMA）を採用。 海外にも進出しているKDDIと、アメリカのVerizonとSprint NextelはCDMA（CDMA2000）を採用(3G回線)。 通話またはテキスまたはデータ通信を一日一回でも使った（発信・着信）場合には、一日 |vbt| vlv| fgv| jng| bsd| qws| pro| hyb| hah| arx| yov| bzx| kgc| bba| ntb| ank| dba| niq| uvp| ybi| oeq| btm| hvt| ift| gts| ysb| lhs| ply| zwn| hjm| zvy| riq| fnj| ihc| vsg| eqo| pzx| hkm| iqk| rkk| zbe| ioa| wmh| zjg| yil| ees| zsc| hvi| vdp| nvy|