HUAWEI TECHNOLOGIES CO., LTD. www.huawei.com Huawei Confidential Security Level: Confidential 2008-5-11 3G Network Planning introduce HUAWEI 3G/2G Inter HUAWEI 3G/2G Inter - - working Solution working Solution Huawei Northwest Africa Region RNP Solution Manage: William.chen [email protected]PDF created with pdfFactory Pro trial version www.pdffactory.com
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n Initial Stage: 3G coverage for dense urban areas and 2G network for coverage extension. Coverage-based handover strategy is used.
n Expanding Stage: 3G coverage expanded and 3G traffic increased. Handover is based on coverage as well as on load in this stage.
n Mature Stage: 3G developing further to provide full coverage and 3G traffic rocketed, reaching the mature stage. Increasing number of subscribers migrated to 3G, leading to a lightly-loaded 2G network bearing voice and low-speed data services for 3G. Handover is mainly based on service and load in this stage.
n Initial Stage: 3G coverage for dense urban areas and 2G network for coverage extension. Coverage-based handover strategy is used.
n Expanding Stage: 3G coverage expanded and 3G traffic increased. Handover is based on coverage as well as on load in this stage.
n Mature Stage: 3G developing further to provide full coverage and 3G traffic rocketed, reaching the mature stage. Increasing number of subscribers migrated to 3G, leading to a lightly-loaded 2G network bearing voice and low-speed data services for 3G. Handover is mainly based on service and load in this stage.
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C S_INTR A T_HO _O UT_SUC C C S_ INTR A T_HO _O UT_A TTC S_INTR A T_HO _O UT_SUC C _R A TE(% )
The following chart shows the filed KPI measurement of 3G/2G handover during April 2005 in a live network for which HUAWEI provided 3G network equipments.
Average success rate of inter-RAT handover with HUAWEI 3G/2G handover strategy reaches up to 98.5%.Average success rate of inter-RAT handover with HUAWEI 3G/2G handover strategy reaches up to 98.5%.
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Only System information changes in 2G BSSPS Service
BSS needs upgrade only when GSM is the R98 or earlier version.
No need of upgradeCS Service
Roaming
3G/2GCollaboration
Function
þ Little impact on existing 2G networkþ R99 version of GSM network recommendedþ Little impact on existing 2G networkþ R99 version of GSM network recommended
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