fny5jt9 发表于 2024-8-31 04:03:33

华为LTE-网优基本整理-切换篇


    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">本文档只<span style="color: black;">表率</span>个人看法,如有疑惑<span style="color: black;">或</span>误导部分,请严明指正,多谢!</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTpM3WU8TpYQ2Nl1lQzrd1ib0ZicNd3ZXjcGcj0vnERexszV1r8ZvYcWicw/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">切换事件分为频内切换和异系统切换,其中A1是停止异频/异系统<span style="color: black;">测绘</span>,A2是<span style="color: black;">起步</span>异频/异系统<span style="color: black;">测绘</span>,A3 A4A5都是<span style="color: black;">起步</span>异频切换的事件,B1 B2都是<span style="color: black;">起步</span>异系统切换的事件,<span style="color: black;">此刻</span><span style="color: black;">咱们</span>就分别<span style="color: black;">来讲</span>说这几个事件是怎么触发,是在什么<span style="color: black;">状况</span>下触发。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">A1事件:Ms- Hys&gt;A1_Thresh,停止异频<span style="color: black;">测绘</span></span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">故名思议<span style="color: black;">便是</span>当本小区信号很好未<span style="color: black;">小于</span>门限时,<span style="color: black;">起步</span>该事件,<span style="color: black;">因为</span>在东莞这边都是A3 A4事件切换,<span style="color: black;">因此</span>看切换类型事件要分别看切往哪个事件的。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Ms:服务小区的<span style="color: black;">测绘</span>结果 &nbsp;Hys:异频A1A2幅度迟滞(InterFreqHoA1A2Hyst)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A1_Thresh:异频A1 RSRP触发门限(InterFreqHoA1ThdRsrp)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">例:东莞汀山创科路F-HLH-1切往东莞汀山创科路D-HLH-1,<span style="color: black;">此时</span><span style="color: black;">咱们</span>先看该服务小区对D频37900的切换事件是用的A3还是A4,从而用LST INTERFREQHOGROUP查出门限值A1_Thresh,如图:</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTR1XOP1HQVibDibwHP0eSXBHBY9ibxTmIjC6wVRTgZyQWSCh0asARjmm6g/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">此刻</span><span style="color: black;">已然</span><span style="color: black;">晓得</span>东莞汀山创科路F-HLH-1切往东莞汀山创科路D-HLH-1是用的A4事件,那就<span style="color: black;">能够</span>用LST INTERFREQHOGROUP查出基于D频切换的门限(INTERFREQHOA1THDRSRP)和迟滞Hys,如图:</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTFEjNmxFicial9ibyflDR1QS31PVHWuLiaMe71EvLTHctNpHEo46nObw05Q/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">代入公式Ms- Hys&gt;A1_Thresh</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">得出MS-2*0.5&gt;-89&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 等于&nbsp;&nbsp;&nbsp;&nbsp; MS&gt;-88</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">结果:当小区的<span style="color: black;">测绘</span>报告MS&gt;-88时,小区不会<span style="color: black;">起步</span>对D频邻区的<span style="color: black;">测绘</span>。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">A2事件:Ms+ Hys&lt;a2_thresh&lt; span&gt;,<span style="color: black;">起步</span>异频<span style="color: black;">测绘</span></span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">故名思议<span style="color: black;">便是</span>当本小区信号<span style="color: black;">少于</span>门限A2_Thresh时,<span style="color: black;">起步</span>该事件,<span style="color: black;">因为</span>在东莞这边都是A3 A4事件切换,<span style="color: black;">因此</span>看切换类型事件要分别看切往哪个事件的。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Ms:服务小区的<span style="color: black;">测绘</span>结果 &nbsp;Hys:异频A1A2幅度迟滞(InterFreqHoA1A2Hyst)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A2_Thresh:异频A2 RSRP触发门限(InterFreqHoA2ThdRsrp)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">例:东莞汀山创科路F-HLH-1切往东莞汀山创科路D-HLH-1,<span style="color: black;">此时</span><span style="color: black;">咱们</span>先看该服务小区对D频37900的切换事件是用的A3还是A4,<span style="color: black;">晓得</span>了他是用A4事件切换,那就<span style="color: black;">能够</span>查出他的<span style="color: black;">测绘</span>门限A2 InterFreqHoA2ThdRsrp.</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTvByW1I2g4SdZujzwr9KXN14xKic4v0EAC4ISYvUJJIZBpPW72BBulCw/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">代入公式Ms+Hys&lt;a2_thresh&lt; span&gt;</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">得出MS+2*0.5&lt;-91&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 等于&nbsp;&nbsp;&nbsp;&nbsp; MS&lt;-92</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">结果:当小区的<span style="color: black;">测绘</span>报告MS&lt;-92时,并且维持320毫秒,小区会<span style="color: black;">起始</span><span style="color: black;">起步</span>对D频邻区的<span style="color: black;">测绘</span>。(<span style="color: black;">咱们</span>只是举例针对D 频)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTbBVMfv6A3KyPCyjI4p07CD8mE55a9dzF1nRB1HrRlMNUibqrVdLXsfQ/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTGvye3UT9ylAJ2AFbzqOg8ibCiaMQA1On5hkiaCb40JXh0Ty3bIUJ90SQQ/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">再用指令LST INTRAFREQHOGROUP查出服务小区东莞汀山创科路F-HLH-1的同频切换幅度迟滞HYS和同频切换偏置OFF,如下图:</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTCtMNiah56O9N7VicQljQaOw3WDNlqJSKRwvJZP98ba1uLeppWLR9dic5Q/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">最后再来查出服务小区东莞汀山创科路F-HLH-1针对东莞汀山创科路F-HLH-2的小区偏移量CIO设置是多少,该参数直接决定对该邻区切换的难易。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLT9GY8tf8zINQxWKpHklib6Y3IDiargXtcicfCaXBo1RIPickICuXUqSBeEQ/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">将上面所有查到的参数代入Mn+Ocn-Hys&gt;Ms+Ocs+Off,<span style="color: black;">咱们</span><span style="color: black;">能够</span>得出</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Mn+0-2*0.5&gt;Ms+0+4*0.5 <span style="color: black;">亦</span><span style="color: black;">便是</span>Mn-Ms&gt;3db,</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">得出结论:</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">当东莞汀山创科路F-HLH-2的信号与东莞汀山创科路F-HLH-1信号相差3dB,且在320ms<span style="color: black;">始终</span>满足该<span style="color: black;">要求</span>,即触发上报A3<span style="color: black;">测绘</span>切换事件.</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">A3事件(异频切换)Mn+Ofn+Ocn-Hys&gt;Ms+Ofs+Ocs+Off</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">日前</span>现网异频切换<span style="color: black;">重点</span>是A2+A3/A4,D\F共站的<span style="color: black;">运用</span>A4,非共站的<span style="color: black;">运用</span>A3。当事件A2/A3在延迟触发时间TimeToTrig内都满足触发<span style="color: black;">要求</span>,则触发异频切换。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A2:Ms+ A1/A2_ Hys&lt;a2_thresh,触发异频<span style="color: black;">测绘</span> &lt; span&gt;</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A3:Mn+Ofn+Ocn-Hys&gt;Ms+Ofs+Ocs+Off,<span style="color: black;">起步</span>A3事件切换</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">对比同频切换,异频切换的判决公式多了两个参数OFN和OFS</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">OFN<span style="color: black;">指的是</span>连接状态下的频率偏置,OFS是服务小区的频率偏置,</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">咱们</span>还是拿东莞汀山创科路F-HLH-1切往东莞汀山创科路D-HLH-1<span style="color: black;">来讲</span>,在<span style="color: black;">这儿</span><span style="color: black;">咱们</span>只是先假设东莞汀山创科路F-HLH-1切往东莞汀山创科路D-HLH-1用的A3事件,但<span style="color: black;">实质</span>上在现网中它用的是A4事件切换,为方便,就暂时认为它<span style="color: black;">这儿</span>是配置A3事件。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTCmYUVuGN5jHYj7zq5ABBEMtt0fhan7wFVSrx7ZmZ0R3hhcBvN1ADibw/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLT1ynv3gVbHLTJib6q4IKnU4vumkyVaafGibgciclq2ibeKpx9JyIZZiaqg7Q/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">先用LSTINTERFREQHOGROUP查出<span style="color: black;">起步</span><span style="color: black;">测绘</span>的门限,如下图:</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTgFpT92lXQ15f8MUySKggibyz9iagWA77Qk5MCMHU5UZibpPPQNWPfx0dw/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">直接参数代入公式:Ms+ A1/A2_ Hys&lt;a2_thresh得出ms&lt;-91-2*0.5,<span style="color: black;">亦</span><span style="color: black;">便是</span>当服务小区的rsrp<span style="color: black;">少于</span>-92,<span style="color: black;">起始</span><span style="color: black;">起步</span>异频邻区<span style="color: black;">测绘</span>。&lt; span&gt;</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Mn+Ofn+Ocn-Hys&gt;Ms+Ofs+Ocs+Off判决<span style="color: black;">要求</span>公式,<span style="color: black;">这儿</span><span style="color: black;">触及</span>到的参数有点多,</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Mn:邻区的<span style="color: black;">测绘</span>结果</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Ocn:邻区特定小区偏置,即小区偏移量(CIO)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Hys:A3迟滞,即,异频切换幅度迟滞(IntraFreqHoA3Hyst)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">MS:服务小区的<span style="color: black;">测绘</span>结果</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Ocs:服务小区偏置(CellSpecificOffset)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Off:异频切换偏置(IntraFreqHoA3Offset)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">TimeToTrig:同频切换时间迟滞(IntraFreqHoA3TimeToTrig)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">OFN:连接状态下的频率偏置,(与同频相比新增的参数)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">OFs:服务小区的频率偏置,(与同频相比新增的参数)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1,Ocn<span style="color: black;">咱们</span>用指令LST EUTRANINTERFREQNCELL查出是0,Hys从上一步<span style="color: black;">能够</span>查出为2*0.5</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTyrVHNu00EibED4b9ZpOJX35HBuq1b3IjpT1icibcxDA3oMK5gVDnWG8Cg/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2,Ofn用指令LST EUTRANINTERNFREQ查出是0dB</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTYAeFc7g7hxZfZ510YdDHztpqqgIOew8yTEib33sX6WdnGcfEXeia0ickg/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3,Ocs和Ofs用LST CELL<span style="color: black;">能够</span>查出都是0。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTP4m95tDfQlg09CRMeO9URePXCQw9pCNkDCFQ3SJ9qiaKwqySicX953Hw/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">4,最后<span style="color: black;">咱们</span>再来查查Off:异频切换偏置,用指令LST INTERFREQHOGROUP查出<span style="color: black;">亦</span>是0.</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTQOXJZCUKEoHfwMrsanufFnaqLPrgP7gF7GG83OSiavbeZmiaKqpjblGQ/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">此刻</span>所有<span style="color: black;">触及</span>到判决的参数<span style="color: black;">已然</span>被<span style="color: black;">咱们</span>查出,代入公式Mn+Ofn+Ocn-Hys&gt;Ms+Ofs+Ocs+Off直接得出:Mn+0+0-1&gt;Ms+0+0+0,只要Mn-Ms&gt;1,就<span style="color: black;">能够</span>重选时间迟滞是320毫秒,</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">特此说明:这个应该是被人改过参数了,正常<span style="color: black;">状况</span>下很少这么设置,<span style="color: black;">针对</span>采用A3事件进行切换判决的小区,<span style="color: black;">大众</span>在处理这些切换指标的时候,<span style="color: black;">通常</span><span style="color: black;">平常</span>的都是<span style="color: black;">调节</span>Ocn(小区偏移量),该参数在判决时直接起到了<span style="color: black;">关联</span>大<span style="color: black;">功效</span>,但不<span style="color: black;">表率</span>能完全消除切换失败,调小CIO只是越难切换到失败的<span style="color: black;">目的</span>小区(切换到失败的<span style="color: black;">目的</span>小区总次数减少,切换失败次数<span style="color: black;">亦</span><span style="color: black;">同期</span>减少),请记住这点,这个并<span style="color: black;">不可</span>完全针对,只是规避减少了切换到特定邻区的切换次数。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">A4事件(异频切换)Mn+Ofn+Ocn-Hys&gt;Ms+Ofs+Ocs+Off(同频都是用A3没A4)</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A2:Ms+ A1/A2_ Hys&lt;a2_thresh,触发异频<span style="color: black;">测绘</span> &lt; span&gt;</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A4:Mn+Ofn+Ocn-Hys&gt;A4_Thresh, 触发异频切换</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Ms:服务小区的<span style="color: black;">测绘</span>结果</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A1/A2_ Hys:异频A1A2幅度迟滞(InterFreqHoA1A2Hyst)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A2_Thresh:异频A2 RSRP触发门限(InterFreqHoA2ThdRsrp)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Mn:邻区的<span style="color: black;">测绘</span>结果</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Ofn:连接态频率偏置, (QoffsetFreqConn)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Ocn:邻区特定小区偏置,即小区偏移量(CIO)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Hys:异频切换幅度迟滞(InterFreqHoA4Hyst)</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A4_Thresh:基于覆盖的异频RSRP触发门限</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">东莞汀山创科路F-HLH-1切往东莞汀山创科路D-HLH-1,先用指令LST EUTRANINTERNFREQ查出针对37900异频切换用的切换事件,从结果看出在现网中它用的是A4事件切换。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTSQ1znWWicd8hVK1a4bvlWfUbGqMzu99nSYaL1Y7iaCfUf4AQbqYht3LA/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">先用LSTINTERFREQHOGROUP查出<span style="color: black;">起步</span><span style="color: black;">测绘</span>的门限,如下图:</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTmglOP98F7kytibPCUsKu5GImnPmC1fobNruiaCibxmvsFuYlVv7GeL0TQ/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">直接参数代入公式:Ms+ A1/A2_ Hys&lt;a2_thresh得出ms&lt;-91-2*0.5,<span style="color: black;">亦</span><span style="color: black;">便是</span>当服务小区的rsrp<span style="color: black;">少于</span>-92,<span style="color: black;">起始</span><span style="color: black;">起步</span>异频邻区<span style="color: black;">测绘</span>。&lt; span&gt;</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A4:Mn+Ofn+Ocn-Hys&gt;A4_Thresh, 触发异频切换</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">Ofn和Ocn在上面<span style="color: black;">已然</span>查出都是0,<span style="color: black;">这儿</span>就<span style="color: black;">再也不</span>截图讲解了,</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A4_Thresh和Hys用LST INTERFREQHOGROUP查出,分别是2*0.5和-93</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/eibD0Ohc9Pzaac8vzo6LM1xoP355BcbLTKRIy4wlkyH4Ms0GzX6micjludQ0ziaPdu9sPC2icj4JssxQEo5dFQW3lA/640?wx_fmt=png&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">代入判决公式得出Mn+0+0-1 &gt;-93<span style="color: black;">亦</span><span style="color: black;">便是</span>Mn&gt;-92.</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">结论:东莞汀山创科路F-HLH-1切往东莞汀山创科路D-HLH-1,正常<span style="color: black;">状况</span>下,<span style="color: black;">根据</span>参数设置<span style="color: black;">思虑</span>,当服务小区的RSRP<span style="color: black;">少于</span>-92,<span style="color: black;">起始</span><span style="color: black;">起步</span>异频邻区<span style="color: black;">测绘</span>(37900),当异频邻区中(37900)的有信号满足切换判决Mn&gt;-92,<span style="color: black;">根据</span>邻区最强信号的小区进行切换。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">东莞华为设备的切换事件暂时到此就一段落了,有什么疑惑<span style="color: black;">或</span>不正确的<span style="color: black;">地区</span>,欢迎<span style="color: black;">指点</span>纠正,<span style="color: black;">另一</span><span style="color: black;">每一个</span>人都有自己的优化分析思路,各人的思路都不太一致,这只是基本的<span style="color: black;">基本</span>篇,<span style="color: black;">触及</span>到其他理论知识和技术知识的还是多看下资料和百度,不懂的就多问。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;"><span style="color: black;">倘若</span>你是<span style="color: black;">第1</span>次看到前景理论的公众号,且你<span style="color: black;">亦</span>是一个网优工程师,请关注一下。这是网优人的基地。<span style="color: black;">咱们</span>征集<span style="color: black;">各样</span>网优届小道<span style="color: black;">信息</span>,无偿<span style="color: black;">报告</span>,匿名发送,欢迎在<span style="color: black;">文案</span>留言下留下你做网优遇到的超级好用玩事情。</span></span></p>
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qzmjef 发表于 2024-10-8 13:29:32

你的见解真是独到,让我受益匪浅。

wrjc1hod 发表于 2024-10-11 17:20:05

期待与你深入交流,共探知识的无穷魅力。

j8typz 发表于 2024-10-26 22:01:05

楼主节操掉了,还不快捡起来!

4zhvml8 发表于 3 天前

感谢你的精彩评论,为我的思绪打开了新的窗口。
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