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1月12日,我局技术人员在监测1900-1920M H z频段时,发现在该频段上有不明信号。该频段原为PHS(小灵通)业务,小灵通退网后,本该无信号。为进一步核实不明信号属性,我局分别启用了固定站、各县(市、区)小型站对1900-1920MHz频段进行监测,同时利用移动监测系统对市中心城区频段内的不明信号进行了测向定位。通过监测、定位,确定为宜春移动分公司擅自占用该频段。随后,我局技术人员走访了宜春移动分公司,进一步了解到该公司将1900-1920MHz用于TD-SCDMA组网。该公司未取得1900-
On January 12, our technical staff, while monitoring the 1900-1920 MHz band, found that there was an unknown signal in this band. The band was originally PHS (PHS) business, PHS back to the network, there should be no signal. In order to further verify the unidentified signal attributes, the stations were respectively enabled to use fixed stations. Small stations in all counties (cities and districts) monitored the 1900-1920 MHz frequency band. At the same time, mobile monitoring system was used to measure the unidentified signals in the downtown frequency band Positioning. Through monitoring and positioning, it was determined that Yichun Mobile Branch occupied the frequency band without authorization. Subsequently, our technical staff visited Yichun Mobile Branch, further understanding of the company 1900-1920MHz for TD-SCDMA networking. The company did not get 1900-