C-ran Brief Introduction.ppt 113hp

C-RAN: the Next Big Thing after LTE China Mobile Research Institute

Agenda

Challenges in mobile internet era

China mobile’s solution: C-RAN

C-RAN progress

Proposals for collaboration with Agilent

2

Challenges in Mobile Internet Era Fast increasing data traffic but slow capacity growth

7 6

Data Traffic Exabytes/Month

6.3 EB

1 Exabyte = 1018 Byte

5

Gap 3.8 EB

4 3 2.2 EB

2 1

1.2 EB 0.24 EB

0.6 EB

0 2010

2011

2012

2013

2014

2015

*Source: Cisco VNI Mobile, 2011 3

Challenges in Mobile Internet Era

2G

3G

LTE

Construction Cost ! Inter-cell Interference ! 4

Challenges in Mobile Internet Era BS cell site is the major source of power consumption.

Other Equipment, 3%

Air Conditioners, 46%

*Source: Base on China Mobile survey on commercial networks

Major Equipment, 51%

5

Agenda

Challenges in mobile internet era

China mobile’s solution: C-RAN

C-RAN progress

Proposals for collaboration with Agilent

6

C-RAN: Road towards green radio access network Virtual BS Pool

Centralized baseband pool real time Cloud computing

Optical Network

RRU

RRU

Collaborative radio

RRU

Clean system target

RRU RRU

RRU

RRU

7

C-RAN——Centralized Baseband Pool

Traditional macro base-stations

Distributed base-stations

C-RAN Centralized baseband pool

8

C-RAN——Collaborative Radio

interference signal

Separately processing

t-processing

9

C-RAN——Real-time Cloud Computing

App Service

TD-LTE TD-SCDMA

TD-LTE TD-SCDMA GSM

GSM

Traditional baseband equipments

Software Defined Radio based on Virtualized Cloud Platform 10

C-RAN——Clean System Target Construction cost per site reduced by 1/3

Power consumption reduced by at most 71%

29%

50 40 30 20 10 0

71% Macro BS

C-RAN

saved

*Source: Base on China Mobile field trial surveys 11

Agenda

Challenges in mobile internet era

China mobile’s solution: C-RAN

C-RAN progress

Proposals for collaboration with Agilent

12

C-RAN Roap We are here Long Term: Address the real-time cloud challenge

C-RAN Research Data traffic analysis BBU pool research

Mid-Term: Address the SDR and Collaborative Radio challenge

Near Term: Address the fiber resource and management challenge

Virtual BTS on real-time Cloud

Multi-mode and Collaborative Radio

Centralization Deployment

2010

2011

Commercial product development

Drive CoMP research and field trial, precommercial product

Expend C-RAN to 2G/3G/4G networks 2012

2013

2014

2015 13

Prototype Development

Multi-standard GPP prototype

Large-scale Baseband pool 14

C-RAN Field Trial

Jilin GSM Beijing G/T/L (on going)

C-RAN Trials in China Zhaotong GSM

Baoding GSM

Changsha GSM Guangzhou G/T/L (on going) Dongguan Zhuhai TD-SCDMA TD-SCDMA

15

International Collaboration

16

Agenda

Challenges in mobile internet era

China mobile’s solution: C-RAN

C-RAN progress

Proposals for collaboration with Agilent

17

Collaboration with Agilent

System Measurement

SDR Research

 Baseband verification  RF specification testing  Channel simulation

 Physical layer acceleration  L2/L3 signal scheduling  Real-time operating system 18

C-RAN PoC Test (with GSM/TD-SCDMA/TD-LTE)

Uplink signal sensitivity EVM/Freq. offset/ phase noise of downlink signal Consistency of multi-port signals Beam-forming test RI signal test, e.g. time synchronization channel simulation

……

19

Summary

C-RAN is to address the challenges in the mobile internet era. Agilent could play an important role in C-RAN test. Collaboration makes win-win!

Thank you! 20