網(wǎng)絡(luò)容量和質(zhì)量的監(jiān)控和分析

1.1Gb容量監(jiān)控和分析1.1.1Gb鏈路容量監(jiān)控方法Gb鏈路帶寬的評估可以從SGSN取統(tǒng)計指標(biāo)進(jìn)行評估，但由于工作分工的不同，無線優(yōu)化人員通常不易獲得核心網(wǎng)統(tǒng)計，因此用無線側(cè)指標(biāo)間接評估Gb鏈路容量就變的比較重要。愛立信關(guān)于Gb口流量的精確統(tǒng)計可以從SGSN上獲取，也可以通過從BSC的流量統(tǒng)計加上包頭開銷來進(jìn)行估算。由于(E)GPRS網(wǎng)絡(luò)是上下行帶寬不對稱網(wǎng)絡(luò)，下行數(shù)據(jù)帶寬高于上行數(shù)據(jù)帶寬，所以在對GBL容量分析時只須分析其下行的GBL帶寬需求就完全可以滿足其上行需求。通過統(tǒng)計數(shù)據(jù)取連續(xù)多天BSC最忙時下行總流量，包含GPRS和EGPRS下行流量總和。Gb鏈路總負(fù)荷Gb鏈路負(fù)荷=BSC總Gb下行流量/BSC總Gb鏈路下行帶寬預(yù)警門限：75%為紅色預(yù)警門限，65%為黃色預(yù)警門限。預(yù)警門限：Gb鏈路均衡性目前只能通過BSC內(nèi)部算法自身調(diào)節(jié)，制定均衡橫性預(yù)警門限僅作為對高Gb鏈路負(fù)荷BSC性能的一種監(jiān)控。GB帶寬利用率的計算方法如下：計算公式：需求GB時隙數(shù)=ROUNDUP(下行總流量(MB)X1024X8X(1+26%)/(3600X64XA))其中26%是包頭開銷，A是負(fù)荷因子(取70%)。GB時隙利用率=需求GB時隙數(shù)/實際配置GB時隙數(shù)*100%當(dāng)GB時隙利用率達(dá)到80%后需開始重點關(guān)注，當(dāng)大于100%時需進(jìn)行擴(kuò)容。1.1.2現(xiàn)網(wǎng)Gb鏈路狀況蘇州部分BSC已經(jīng)做了IP改造，GB容量是充足的，所以本次評估不再考慮中，就只對以下沒有IP改造的BSC進(jìn)行統(tǒng)計分析，具體每個BSC的GB時隙利用率如下圖：BSC最大流量(MB)需求GB時隙數(shù)現(xiàn)網(wǎng)GB時隙數(shù)GB利用率SZGM6B12028.30130.0088.00147.73%SZM03B32031.00130.0088.00147.73%SZM33B23436.46220.00150.00146.67%SZM18B13166.55203.00148.00137.16%SZM14B12507.07161.00118.00136.44%SZM30B23719.50239.00180.00132.78%SZM45B23056.53196.00148.00132.43%SZM28B23441.60221.00178.00124.16%SZM37B22255.22145.00118.00122.88%SZM47B12286.31147.00120.00122.50%SZM21B12761.51177.00148.00119.59%SZM43B23260.07209.00180.00116.11%SZM03B23208.55206.00178.00115.73%SZM31B22122.00136.00118.00115.25%SZM04B43179.50204.00178.00114.61%SZM35B23176.32204.00178.00114.61%SZM27B34290.05275.00240.00114.58%SZM28B13109.58200.00178.00112.36%SZM18B22506.22161.00148.00108.78%SZM32B22532.54163.00150.00108.67%SZM13B12526.05162.00150.00108.00%SZM32B12458.93158.00149.00106.04%SZM31B11888.91121.00118.00102.54%SZM04B23152.28202.00208.0097.12%SZM19B13155.52202.00210.0096.19%SZM1B31744.51112.00117.0095.73%SZM47B21317.4485.0090.0094.44%SZEB0701302.9684.0090.0093.33%160.00%140.00%120.00%100.00%80.00%60.00%160.00%140.00%120.00%100.00%80.00%60.00%40.00%20.00%0.00%grxlomLLJzs建oLnLAJES-WLAJZSeowljzs定M^zs刖6誓ZSwszsotocoljzsLnowLJzsTCOSELAJZSImT—I誓ZSTCOETLAJZS刖OOMZSEcof誓ZS寸CQ寸olajesfcoEoLAJZSTcaTZLAJZSSMZS刖Ln寸任ZS—#zsZCOE昌ZSTCO9蹙捋SSZM16B22574.97165.00180.0091.67%SZEB1053399.70218.00240.0090.83%SZM30B12069.05133.00148.0089.86%SZM11B12898.24186.00208.0089.42%SZM33B12470.21159.00178.0089.33%SZEB0103300.38212.00240.0088.33%SZM41B12364.40152.00178.0085.39%SZM21B22319.48149.00178.0083.71%SZM24B12248.70144.00178.0080.90%SZM29B22165.30139.00178.0078.09%SZM07B21795.69115.00148.0077.70%SZM37B11395.9790.00118.0076.27%SZM26B12794.17179.00240.0074.58%SZEB1032319.54149.00210.0070.95%SZEB1062556.79164.00240.0068.33%SZM2B12775.89178.00268.0066.42%SZM2B21703.47110.00178.0061.80%SZM50B11117.2072.00118.0061.02%SZM39B11030.2066.00118.0055.93%SZM39B2995.6564.00118.0054.24%SZM1B21624.03104.00208.0050.00%SZM50B21147.6274.00148.0050.00%SZEB1071656.68107.00240.0044.58%SZEB0261395.5290.00238.0037.82%1.1.3現(xiàn)網(wǎng)Gb容量的優(yōu)化建議通過評估可以看出有38個BSC的GB時隙利用率超過80%，需要關(guān)注，其中比較高（GB時隙利用率大于100%）的建議擴(kuò)容，其中SZM31B1和SZM32B1略高于100%，暫時不需要擴(kuò)容，建議重點關(guān)注，其余具體擴(kuò)容的GBE1卡數(shù)如下表：BSC最大流量需求GB時隙數(shù)所需GbE1數(shù)現(xiàn)網(wǎng)GB時隙數(shù)現(xiàn)網(wǎng)GbE1數(shù)需增加GbE1數(shù)SZGM6B12028.2987130.005.0088.003.002.00SZM03B23208.5529206.007.00178.006.001.00SZM03B32031.0016130.005.0088.003.002.00SZM04B43179.4972204.007.00178.006.001.00SZM13B12526.0543162.006.00150.005.001.00SZM14B12507.0724161.006.00118.004.002.00SZM18B13166.5484203.007.00148.005.002.00SZM18B22506.2237161.006.00148.005.001.00SZM21B12761.5068177.006.00148.005.001.00SZM27B34290.0547275.009.00240.008.001.00SZM28B13109.575200.007.00178.006.001.00SZM28B2SZM30B2SZM31B2SZM32B2SZM33B2SZM35B2SZM37B2SZM43B2SZM45B2SZM47B13441.59583719.49722122.00282532.54083436.46483176.32152255.21843260.07173056.53052286.3113221.00239.00136.00163.00220.00204.00145.00209.00196.00147.0