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CDMA 1x and EV-DO Network Enhancement

CDMA 1x and EV-DO Network Enhancement. China Telecom Wang Yuezhen 2012.06.14. CTC Have a Great Success with CDMA. Users grow 5-folds in the last 3 years Users will be double In the next 3 Years . CTC Have a Great Success with CDMA (cont,).

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CDMA 1x and EV-DO Network Enhancement

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  1. CDMA 1x and EV-DO Network Enhancement China Telecom Wang Yuezhen 2012.06.14

  2. CTC Have a Great Success with CDMA • Users grow 5-folds in the last 3 years • Users will be double In the next 3 Years

  3. CTC Have a Great Success with CDMA (cont,) • Limited spectrum becomes the bottleneck for further growth. CDMA UL CDMA DL MHz 825 835 870 880 MS Tx f=0.03N+825 MHz BS Tx f=0.03N+870 MHz 37 78 119 160 201 242 283 How to improve capacity with limited spectrum?

  4. Network Enhancements Phase I EVRC-B QLIC MRD Early Termination New PC Mode EVRC-NW Smart Blanking QOF RLIC Completed 1x Network Enhancement Phase II In progress NLB SCM DNS SCML Multi-AT Paging …… In progress DO Network Enhancement

  5. Network Enhancement Effects

  6. Deployment Strategy • Network: Software Upgrade • Supported AT :Many 1.EVRC-B • Network :No Change • Supported AT :Some Deployment, 2011 Hot Spots • Network :No Change • Supported AT :Few 2.QLIC Mandatory 3.MRD • Network: Software and Hardware Upgrade • Supported AT :New, Few Optional 4.SB,ET， EVRC-NW， New PC Mode, QOF, RLIC • Network: Software Upgrade • Supported AT : all Legacy Under evaluation 5.NLB SCM Plan to Do Field Trial in 2012 Q3

  7. 谢谢！ Thanks！

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