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清遠(yuǎn)23g互操作優(yōu)化總結(jié)報(bào)告-資料下載頁

2025-03-23 10:32本頁面
  

【正文】 ,如果在電梯內(nèi)沒有專門的WCDMA覆蓋,進(jìn)入電梯就是一個(gè)很普遍的快衰落場(chǎng)景,室內(nèi)站點(diǎn)廣信花園被選擇為本次快衰落的測(cè)試場(chǎng)景。廣信花園小區(qū)在電梯的入口處有1個(gè)3G的主服務(wù)小區(qū)(PSC=81)覆蓋,當(dāng)電梯門關(guān)上之后,大概有20到30dB的穿透損耗,如此大的穿透損耗直接影響手機(jī)接收CPICH RSCP的信號(hào)強(qiáng)度,本次測(cè)試為語音業(yè)務(wù),在本次的場(chǎng)景測(cè)試中usedFreqThres2dRscp是控制觸發(fā)IRAT切換的關(guān)鍵參數(shù).平均時(shí)延(秒)的計(jì)算是從觸發(fā)2D的事件到切換成功的事件來計(jì)算從測(cè)試的結(jié)果看出,當(dāng)usedFreqThresh2dRscp設(shè)置為110dBm時(shí),切換時(shí)延最久。第二次測(cè)試結(jié)果IRAT 。第三和第四次的測(cè)試IRAT HO方面并沒有太大的變化。 usedFreqThresh2dRscp(dBm):110 dBm,手機(jī)切往GSM小區(qū)。 usedFreqThresh2dRscp(dBm):105 dBm,手機(jī)順利切往GSM小區(qū)。 usedFreqThresh2dRscp(dBm):100 dBm,手機(jī)順利切往GSM小區(qū)。 usedFreqThresh2dRscp(dBm):95 dBm,手機(jī)順利切往GSM小區(qū)。場(chǎng)景測(cè)試總結(jié):在快衰落電梯場(chǎng)景中,應(yīng)該提早觸發(fā)2D事件,讓手機(jī)提前切換與GSM小區(qū),從測(cè)試效果可以看出,在室內(nèi)弱信號(hào)的場(chǎng)景中,2D事件門檻usedFreqThresh2dRscp(dBm)推薦在100dBm至105dBm。6 性能監(jiān)控計(jì)數(shù)器介紹Counter NameDescriptionpmNoAttOutIratHoSpeechDefines the numbers of IRATHO attempt. pmNoAttOutIratHoSpeech is incremented when RNC is received 39。Handover From UTRAN Command39。 messagepmNoFailOutIratHoSpeechGsmFailureDefines the relocation preparation failure when a 39。RANAP RELOCATION PREPARATION FAILURE39。 message is received from CN or timeout of timer relocation preparation occurs.pmNoFailOutIratHoSpeechReturnOldChNotPhyChFailDefines the reception of HANDOVER FROM UTRAN FAILURE with IRATHO failure cause=any other cause apart from Physical channel failure or configuration unacceptablepmNoFailOutIratHoSpeechReturnOldChPhyChFailDefines the reception of HANDOVER FROM UTRAN FAILURE with IRATHO failure cause= Physical channel failurepmNoFailOutIratHoSpeechUeRejectioncoverage_based IRAT due to UE rejection which incapable of performing IRATpmNoFailOutSbHoSpeechGsmFailureservice_based IRAT Due to GSM resource allocation failurepmNoFailOutSbHoSpeechReturnOldChNotPhyChFailservice_based IRAT not due to physical channel setup failurepmNoFailOutSbHoSpeechReturnOldChPhyChFailservice_based IRAT due to physical channel setup failurepmNoFailOutSbHoSpeechUeRejectionservice_based IRAT due to UE rejection which incapable of performing IRATpmNoSuccessOutIratHoSpeechdefines the numbers of IRATHO success when 39。Iu Release Command39。 is received with cause Normal Release39。 or 39。Successful Relocation39。 message.pmNoSuccessOutSbHoSpeechService_based IRAT HO success times7 IRAT 問題解決流程8 總結(jié)本文檔主要總結(jié)了23G互操作中的經(jīng)驗(yàn)和優(yōu)化方法,在WCDMA和GSM兩網(wǎng)并存在的網(wǎng)絡(luò)中23G互操作的優(yōu)化尤其重要,特別是在WCDMA網(wǎng)絡(luò)還未非常完善的現(xiàn)階段更為明顯,23G互操作的優(yōu)化也有賴于WCDMA和GSM兩網(wǎng)的完善,互操作的工作在日常的維護(hù)中也需要繼續(xù)進(jìn)行,只有通過不斷的優(yōu)化和提升,才能營(yíng)造更好的網(wǎng)絡(luò)性能。 Rev PA1 8/5/2009211。 Copyright20 (23)Commercial in confidence
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