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Enhancing CDMA and EV-DO Networks: Success and Strategies by China Telecom

This report explores the significant growth and advancements made by China Telecom (CTC) in CDMA and EV-DO networks, highlighting a 5-fold increase in users over three years, with projections to double in the next three. It addresses the challenges posed by limited spectrum and outlines ongoing network enhancement phases, including software upgrades and deployment strategies for advanced technologies like EVRC-B and QLIC. The report also discusses how these enhancements aim to improve network capacity despite the spectrum limitations, ensuring continued service quality and user satisfaction.

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Enhancing CDMA and EV-DO Networks: Success and Strategies by China Telecom

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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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