7.7 Suggestions for Suburban
7.7关于郊区覆盖的建议

Given below are the Statistics for Suburban region for Pilot coverage, which is quite sparse throughout the Suburban, Highway and Village areas. Covered area is quite low, i.e. only 52% area is getting coverage of -110 dBm and 28% has coverage of -100 dBm.
郊区、高速公路和乡村的导频覆盖相当稀疏，下面是郊区导频覆盖的统计数据。覆盖范围通常相当低，例如仅有52％的区域覆盖功率为-110dBm，28%的区域覆盖功率为-100dBm。 

 

NameSurface (km2)% of Covered Area
Coverage by Transmitter suburban2,654.60100
Best Signal Level (dBm) >=-80236.288.901
Best Signal Level (dBm) >=-90423.02315.935
Best Signal Level (dBm) >=-100741.42327.93
Best Signal Level (dBm) >=-1101,382.1452.066
Best Signal Level (dBm) >=-1202,654.60100
不同信号强度覆盖的区域面积（平方公里）

发射机覆盖郊区面积2,654.60100平方公里

最好信号电平（dBm）>=-80的覆盖区域为236.288.901平方公里

最好信号电平（dBm）>=-90的覆盖区域为423.02315.935平方公里

最好信号电平（dBm）>=-100的覆盖区域为741.42327.93平方公里

最好信号电平（dBm）>=-110的覆盖区域为1,382.1452.066平方公里

最好信号电平（dBm）>=-120 的覆盖区域为2, 654.60100平方公里

（原文中此处数字小数点疑似有误，按此理解计算与前文覆盖比例吻合）

Moreover, there is large expanse of area, in suburban and highways where there in no coverage. Thus optimizing with the available cells will not show much impact.
此外在郊区和高速公路周围有许多区域没有信号覆盖。因此对现有基站进行优化覆盖效果将不会得到明显改善。 

To have an adequate coverage:
为获得满意的覆盖范围：

We need to have seemless coverage on Highways by putting up more sites (may be with 30 deg 21 dBm gain antennae). Mainly for those areas where no-coverage highway stretch is more than 9 km.
For existing highway sites, TMA can be incorporated to boost the coverage by 3-4 km.
Additional sites to be incorporated to enhance coverage upto reasonable levels.
必须在高速公路部署更多站点（可使用30度水平波瓣增益为21dBm的天线）以实现无缝覆盖。大部分此类站点都部署在高速公路无信号覆盖范围延伸超过9公里的区域。对于已有的高速路站点，使用塔顶放大器(TMA, Tower Mounted Amplifier)技术可以使覆盖范围提升3至4公里，还可以在此基础上再添加基站以达到令人满意的覆盖效果。

 

Post adequate coverage / capacity in the area only, nominal plan for Suburban can be fine tuned to desired levels.

只要能提供足够的信号覆盖（系统容量），郊区初步规划就可以进行精细优化以达到满意效果。

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