中文摘要：

广泛的室内的隧道大小与宽带在北京被进行多重输入多重产量(MIMO ) 在 5.25 GHz 更健全。line-of-sight (LOS ) 和 non-line-of-sight (NLOS ) 繁殖在室内的办公室和热点情形里被测量。根据测量数据，统计隧道特征在这篇文章被介绍，包括损失(PL ) 建模的实验路径，三个过量延期参数，圆形的方位角传播(CAS ) ，和圆形的举起传播了(CES ) 。在二种情形的不同繁殖机制的比较分析被进行。这些值为国际活动电信进展(IMT 进展) 为室内的范围和 MIMO 和直角的频率部门 multiplexing (OFDM ) 的技术研究是重要的系统。

英文摘要：

Extensive indoor channel measurements were conducted in Beijing with wideband multiple-input multiple-output （MIMO） sounder at 5.25 GHz. Both line-of-sight （LOS） and non-line-of-sight （NLOS） propagation were measured in the indoor office and hotspot scenarios. On the basis of measured data, statistical channel characteristics are presented in this article, including the empirical path loss （PL） models, three excess delay parameters, circular azimuth spread （CAS）, and circular elevation spread （CES）. Comparative analysis of different propagation mechanisms in two scenarios is conducted. These values are significant for indoor coverage and technical research of MIMO and orthogonal frequency division multiplexing （OFDM） for the international mobile telecommunications-advanced （IMT-Advanced） system.