Among the use of various technologies in WLL, the use of spread spectrum is increasing due to its high data rate, no license in certain condition, etc.

在无线本地环路的各种技术手段中，扩频技术以其高数据速率和在一定条件下无需频率许可证等优点，在数据传输中得到越来越广泛的应用。

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While the research shows that the spectrum efficiency of the current license spectrum is very low.

且研究表明当前授权频谱的利用率却非常低。

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Moreover, Mr. Ambani's spectrum license requires that the network reach 50% of rural market areas by 2015.

WSJ: Mukesh Ambani Plans Huge 4G Wireless Network in India

Verizon Wireless has completed three spectrum license sale transactions following agreements reached late last year as part of the open sale process for its 700 MHz A and B Block licenses.

ENGADGET: Verizon wraps up 700MHz spectrum sales to three rural telecom firms

If the D Block is reallocated to public safety, the value of the 700-MHz spectrum for existing license holders will be maintained and the value of spectrum made available in future auctions will be higher, bringing in additional revenue for the government while providing additional spectrum that is much needed by the commercial network operators.

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