数据业务忙小区EDGE信道改造方案

数据业务忙小区EDGE信道改造方案一、EDGE信道改造出发点及思路针对由于数据业务需求量过大导致小区话务拥塞严重的小区，同时利用在半速率信道还可以满足客户通话需求的情况下，系统不会清空数据业务所占据TCH，我们采取对其数据业务EDGE信道进行改造，由4条开到8条，以此缓解数据业务对TCH的过度占用，降低拥塞。举例如下：Ａ小区调整前调整后备注时隙总数5656调整前后时隙总数不变BCCH/CBCH11SDCCH33NUMREQEGPRSBPC48增加BPC的同时，相当补给了16个ondemand的TCH64K_DEV48但传输增加了FPDCH22剩余可分配的TS4844减去那增加的4个64K传输时隙部分某时刻GPRSOndemand2812调整后只需12个ondemand的TCH就能够满足数据业务需要剩余的TCH2032剩余的TCH比调整前多出12个从上表描述可见：调整后，剩余可用的TCH数目却比之前多出12个，相当于在原来TCH资源基础上扩容了60%的容量。然而调整前后小区时隙总数不变；只传输时隙使用数在调整后增加的，这样通过充分利用传输来满足数据业务量需求，通过配置更多的64K时隙去分担、承载更多的数据业务量。利用传输资源杠杆式地放大TCH的效能，在使小区EDGE得到保障的同时，也无形地给小区置换了更充裕的TCH资源，降低拥塞，使小区半速使用率得到下降。我们对以下小区进行尝试改造：BSCCELLNAME半速率比例NUMREQEGPRSBPCYFSM1B1Y51LSG2罗定素龙293.14%4YFSM2B1Y61LPX3罗定平西392.28%6YFSM1B2Y52XDG3云浮夏洞391.90%4YFSM2B1Y61LPX1罗定平西189.38%2YFSM2B1Y61FCZ3罗定附城镇388.25%5YFSM1B2Y52HKZ1云浮河口镇187.60%5YFBBSC1Y21GFG1云城高峰187.58%2YFSM1B2Y52HKU1云浮河口187.16%7YFSM1B2Y52HKU2云浮河口286.55%6YFSM2B1Y61LBG1罗定罗定宾馆186.46%2YFSM2B1Y61FCZ1罗定附城镇186.25%3YFSM2B1Y61ZZC1罗定制衣厂186.25%6YFSM1B2Y52SCG1云城水厂185.86%5YFBBSC1Y21XFJ1云城消防局185.55%6YFSM2B1Y61FCX1罗定附城中学185.08%2YFBBSC1Y21GFG3云城高峰383.32%2YFCBSC1Y31PKG1新兴平康182.39%6YFBBSC1Y21JSN3云城建设南381.23%4YFSM2B1Y61LNH2罗定罗定农行280.34%7YFBBSC1Y21SNH2云城市农行279.69%6YFSM1B1Y51LSG3罗定素龙379.21%2YFSM1B1Y51LTK2郁南连滩开发区275.75%5YFSM2B2Y62CBU3罗定船步372.43%4YFCBSC2Y32TTG3新兴天堂371.68%6YFBBSC1Y21CSL2云城翠石路271.21%5YFCBSC1Y31FUG2新兴扶桂270.39%4二、EDGE信道改造尝试效果下表测试的26个小区，在进行EDGE信道改造前，平均半速率比例为83.34%，改造以后，从最近3天话务统计数据进行分析，这3天的平均半速率比例为46.48%，整体平均降幅为44.23%。半速率比例调整前后效果对比表CELL半速率比例BPC修改前BPC修改后BPC增加200810272008102820081029Y51LSG293.14%4842.47%43.11%10.30%Y61LPX392.28%68288.66%90.92%87.60%Y52XDG391.90%46248.58%54.98%33.43%Y61LPX189.38%2420.00%0.66%0.00%Y61FCZ388.25%58387.55%87.79%89.26%Y52HKZ187.60%5834.17%79.85%2.26%Y21GFG187.58%2860.00%29.14%0.00%Y52HKU187.16%78164.26%89.55%66.77%Y52HKU286.55%68288.93%86.97%85.32%Y61LBG186.46%28624.89%83.62%70.85%Y61FCZ186.25%3855.11%20.25%2.36%Y61ZZC186.25%68210.59%33.37%19.35%Y52SCG185.86%57287.15%84.38%87.75%Y21XFJ185.55%67133.92%86.45%5.74%Y61FCX185.08%28686.92%90.31%89.61%Y21GFG383.32%28690.54%82.34%83.25%Y31PKG182.39%68283.59%86.24%89.74%Y21JSN381.23%48444.81%64.82%53.70%Y61LNH280.34%78150.55%79.82%62.11%Y21SNH279.69%68250.39%82.10%33.55%Y51LSG379.21%26414.06%22.90%12.79%Y51LTK275.75%5834.22%33.32%7.62%Y62CBU372.43%4841.94%67.24%1.37%Y32TTG371.68%6820.00%13.16%0.00%Y21CSL271.21%58323.74%39.22%38.41%Y31FUG270.39%48418.87%30.25%13.83%平均分配PDCH数调整前后效果对比表CELL平均分配PDCH数BPC修改前BPC修改后BPC增加200810272008102820081029Y21GFG368.2328667.5064.6666.73Y31PKG164.2868259.0759.3160.34Y61LPX351.4368248.6047.8649.26Y61FCZ345.5358352.9947.6251.80Y51LSG242.9448431.8732.7332.81Y51LSG342.5226433.3726.4432.44Y52HKU141.9278148.8248.8148.90Y61FCX140.3328641.0838.3042.00Y32TTG336.9168226.1327.9826.88Y52SCG135.8957240.7334.0140.06Y61ZZC133.4768234.5130.2832.44Y31FUG231.1648422.5721.8220.94Y52HKU230.9268244.9338.1444.80Y21CSL230.8658335.6631.0238.44Y21JSN330.6548430.5431.9536.76Y21SNH230.3768237.8837.7331.16Y52HKZ129.7458323.9832.7225.44Y61LNH229.2378136.8135.1241.72Y61LPX127.6824223.0124.2121.38Y61FCZ127.1538531.5626.4228.52Y51LTK227.0858325.1623.6326.80Y52XDG326.9146236.8929.0628.84Y62CBU325.6048428.9230.6927.97Y21XFJ121.3167122.7819.4315.12Y61LBG118.4528627.2926.1129.17Y21GFG118.2928615.0218.0918.02上表描述的平均分配PDCH数在调整前后没有出现较大幅值变化，说明本次EDGE信道改造保障了数据业务的正常。证明充分利用传输资源杠杆式地放大了TCH的效能，在使小区数据业务得到保障的同时，无形地给小区置换了更充裕的TCH资源，降低拥塞，小区半速使用率得到下降。数据附件：