journal...—improving the battery life measurement environment for smartphones— (p.4)...

4
˔ Automatic Measurement System for Smartphone Power Consumption in Mobile Environments Improving the Battery Life Measurement Environment for Smartphones ˔ Smartphone App Traffic Evaluation System Toward Smartphone Power Saving and Network Load Reduction ˔ Implementing LTE International Data Roaming-out ˔ Evaluating RF Field Intensity in Mobile Base Station Environments ˔ Low-cost Media Processing Node Upgrade with Minimal Impact on User Services Technology Reports NTT DOCOMO Jan.2015ɹNo.3 Vol.16 ˔ Innovation and Silicon Valley DOCOMO Today

Upload: others

Post on 14-Oct-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Journal...—Improving the Battery Life Measurement Environment for Smartphones— (P.4) Configuration of automatic measurement system for smartphone power consumption Base station

● Automatic Measurement Systemfor Smartphone Power Consumption in Mobile Environments– Improving the Battery Life Measurement Environment for Smartphones –

●Smartphone App Traffic Evaluation System– Toward Smartphone Power Saving and Network Load Reduction –

● Implementing LTE International Data Roaming-out

●Evaluating RF Field Intensityin Mobile Base Station Environments

●Low-cost Media Processing Node Upgradewith Minimal Impact on User Services

Technology Reports

NTT DOCOMO

Jan.2015 No.3Vol.16

● Innovation and Silicon Valley

DOCOMO Today

Au

tom

atic

Me

asu

rem

en

t System

for Sm

artp

ho

ne

Pow

er C

on

sum

ptio

n in

Mo

bile

Environ

me

nts

No

.3V

ol.16

Jan

.2015

NTT

DO

CO

MO

Tec

hnic

al J

ourn

al

Page 2: Journal...—Improving the Battery Life Measurement Environment for Smartphones— (P.4) Configuration of automatic measurement system for smartphone power consumption Base station

2

Vol.16 No.3 Jan. 2015

Innovation and Silicon Valley ······································································ 1

Takayuki Inagawa

Automatic Measurement System for Smartphone Power Consumption in Mobile Environments —Improving the Battery Life Measurement Environment for Smartphones— ······· 4

Smartphone App Traffic Evaluation System —Toward Smartphone Power Saving and Network Load Reduction— ···· 10

Implementing LTE International Data Roaming-out ···························· 16

Evaluating RF Field Intensity in Mobile Base Station Environments ····· 27

Low-cost Media Processing Node Upgrade with Minimal Impact on User Services ······························································································ 35

Base Station SimulatorBattery Life

Signaling Base Station Simulator

Data Roaming-outLTE

Antenna Mobile base stationRadio frequency safety

Device UpgradeMedia Processing

(P.27)

Internet

Proposed evaluation environment

Sig

na

ling

(co

ntr

ol s

igna

ls)

Use

r da

ta

Base station simulator

Core network function

Radio access network function

(P.10)

NTT

DO

CO

MO

Tec

hnic

al J

ourn

al

Page 3: Journal...—Improving the Battery Life Measurement Environment for Smartphones— (P.4) Configuration of automatic measurement system for smartphone power consumption Base station

3

d animestore Supporting H.265/HEVC Exhibit at the International Conference on ITU-T and ISO/IEC Standardization ································································································ 44

Technology Reports Automatic Measurement System for Smartphone Power Consumption in Mobile Environments

—Improving the Battery Life Measurement Environment for Smartphones— (P.4)

Configuration of automatic measurement system for smartphone power consumption

Base station simulator

Power consumption measurement

Obtain log of simulated radio communications environment

Control PC

External control

Newly constructed measurement system

Automatic measurement system for smartphone power consumption

External network

Current measurement

equipment

(P.44)

NTT

DO

CO

MO

Tec

hnic

al J

ourn

al

Page 4: Journal...—Improving the Battery Life Measurement Environment for Smartphones— (P.4) Configuration of automatic measurement system for smartphone power consumption Base station

NTT

DO

CO

MO

Tec

hnic

al J

ourn

al