13 词条
主页 > 产品类别 > 移动通信 > 2G wireless network
2G wireless network
Second-generation (2G) digital cellular networks used by mobile phones. 2G networks was developed as a replacement for first generation (1G) analog cellular networks, and the GSM standard originally described a digital, circuit-switched network optimized for full duplex voice telephony. This expanded over time to include data communications, first by circuit-switched transport, then by packet data transport via GPRS (General Packet Radio Services) and EDGE (Enhanced Data rates for GSM Evolution or EGPRS).
2G wireless network的贡献者
2G wireless network
序号码
移动通信; 2G wireless network
在TACS系统中。由于保安方砷的原因，分配给移动台设备的一个32bit的号码，此号码由工厂设置，并不能被改动，若要改变序号码，移动台应停止工作。
