Maximize the Value of CDMA Networks and Maximize the Value of CDMA - PowerPoint PPT Presentation

Maximize the Value of CDMA Networks and Maximize the Value of CDMA Networks and Smoothly Evolve to the Next Generation Smoothly Evolve to the Next Generation Sean Cai Sean Cai VP Wireless, ZTE Corporation VP Wireless, ZTE Corporation CDG Technology Forum 2011

Table of Contents Technology Evolution Maximizing Values of CDMA Smooth Migration to LTE

Mobile Technology Evolution Mobile Technology Evolution 4G 3G 2G UMTS, CDMA, TD-SCDMA GSM, IS-95 3

Mobile Market Trends Mobile Market Trends Source: CDG

Different Characteristics Different Characteristics Basic Services Guaranteed communication connections at anytime and anywhere. Value Added Services Requiring high throughput and low latency communication connections covered in relative small areas or hot spots. 5

High Traffic Increase vs.. Slow Revenue Growth High Traffic Increase vs.. Slow Revenue Growth Mobile Data Traffic and Revenue Global Mobile Revenue (million USD) Source: 3 rd party Source: 3 rd party 6

Concurrent Voice & Data Services Concurrent Voice & Data Services Voice and Data Concurrent Services CDMA currently does not support voice and data concurrent services. But this is a very important feature for smart phones. Overloaded Data Services Impact on Voice Calls Data service not only increases the data traffic, but also occupies a lot of bandwidth on signaling channel, which causes high call drop rate. 7

Dual Network Architecture Dual Network Architecture xGSN Servers Voice BSC/RNC Voice bearer network (IP) GSM/UMTS/LTE Broadband Internet bearer Data network (IP) EPC No TCO Increases! 8 8 8

Independent Migration Paths Independent Migration Paths CDMA2000 1X Adv CDMA2000 1X Smooth Evolution Smooth Evolution CDMA and LTE CDMA2000 HRPD 9

Different Deployment Strategy Different Deployment Strategy Voice Networks � Wide area coverage for voice and low throughput data services � To cover high density areas for data services � Interworking and evolving to single data network Hot spot Urban area Suburb 10 10

Table of Contents Technology Evolution Maximizing Values of CDMA Smooth Migration to LTE

Voice Quality Voice Quality 12 12

Values of CDMA Voice Networks Values of CDMA Voice Networks Title in here Voice Quality CDMA Technology System Network Title in Capacity Coverage here 13 13

Voice Capacity Voice Capacity 14 14

Radio Coverage Radio Coverage 1X Advanced LTE VoIP RL Budget Difference Soft handoff ~ db Without soft handoff 1 2 Soft handoff Without soft handoff ~ db 1 2 Continuous power Discontinuous power 10 db Continuous power Discontinuous power 10 db 6 db db 6 transmission mode transmission mode transmission mode transmission mode 12 EVRC ‐ B AMR . kbps . db 2 2 6 12 EVRC ‐ B AMR . kbps . db 2 2 6 15 15

Migration to 1X Advanced Migration to 1X Advanced Enhanced FL IC Reverse Link Interference Cancellation (RLIC) Over 3x Capacity Hardware upgrade Smart Blanking of the 1/8 rate frame Gain required Improved closed loop power control Early termination of forward and reverse links EVRC ‐ B(4GV) Mobile Receive Diversity (MRD) 50% More Software Upgrade Capacity Gain Quasi Linear Iinterference Cancellation (QLIC) Quasi Orthogonal Function (QOF) 16 16

Benefits to Data Services Benefits to Data Services � The same voice capacity on 1x advanced only takes 25% of the existing spectrum. CDMA Network Migration CDMA Network Migration � The same voice capacity on 1X advanced only takes 25% of the existing spectrum. � Saved spectrum can be used for DO or LTE to increase data capacity. 17 17

Table of Contents Technology Evolution Maximizing Values of CDMA Smooth Migration to LTE

Future Network Consideration Future Network Consideration 19 19

UNI ‐ RAN for Multi ‐ Radio Technologies UNI ‐ RAN for Multi ‐ Radio Technologies SDR BBU Platform Single Platform Single Platform Multi ‐ ‐ Radio Technologies Radio Technologies Multi CDMA2000 1X CDMA2000 1X LTE and CDMA CDMA2000 EV ‐ DO enhancement Baseband module + Baseband module + software upgrade software upgrade 20 20

UNI ‐ RAN for Multi ‐ band Radios UNI ‐ RAN for Multi ‐ band Radios Single Platform Single Platform RRU 700MHz 800MHz 1900MHz LTE(5M ) CDMA CDMA LTE > 100MHz < 20MHz LTE RRU CDMA RRU CDMA + LTE RRU 21 21

UNI ‐ RAN: Much Easier to Install UNI ‐ RAN: Much Easier to Install Centralized Installation Centralized Installation Feeder Indoor Installation Outdoor Installation Power Trans C/L Dual ‐ Mode C/L Dual ‐ Mode Distributed Installation Distributed Installation Equipment sharing C/L Dual ‐ Mode C/L Dual ‐ Mode Equipment room sharing Feeder RRU Fiber BBU Power supply and battery sharing Battery Tower sharing Power Transmission Feeder sharing 22 22

UNI ‐ CORE for Smooth Network Migration UNI ‐ CORE for Smooth Network Migration Core network Wireless network 23 23

UNI ‐ CORE for Smooth Network Migration UNI ‐ CORE for Smooth Network Migration Core network Wireless network 24 24

Unified Network Platforms Unified Network Platforms MSR/MBR/SDR Unified-User Profile Unified-NMS Service Platform Combined Multi-mode BBU UNI- BSC/RNC BEARER Micro/Pico/Femto Multi-mode Baseband Cluster Unified Gateway 25 25

Summary: Voice & Data dual network strategy Maximized the values of CDMA Maximized spectrum efficiency of voice for data services Unified Network Platform provides a way to smoothly migrate to LTE