全美17个城市大约有30家电视台已经在电视转播塔安装了额外的传输仪，传送本地实况节目到移动信号接收器，而且几乎免费。
Some 30 television stations in 17 cities across the country have now installed additional transmitters on their towers to beam live local broadcasts to mobile receivers mostly for nothing.
在系统同步后，移动台通过物理层特征标识连接的小区，并执行到系统的初始接入。
After system synchronization, the mobile stations identify the connected cell through a physical layer characteristic, and perform initial access to the system.
通信还发生在上行链路方向中，包括从移动台到基站的传输。
Communications also occur in an uplink direction including transmissions from the mobile station to the base station.
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