Actual broadband QoS in Japan

April 2013Toshiya Jitsuzumi

Faculty of EconomicsKyushu University

MEASUREMENT METHODOLOGY

Methodology

• Conducted web‐based questionnaire surveys of registered monitors

• Focused on user groups who connected from home via wireline broadband

• Respondents were asked to answer the type of access line and its advertised speed.

• Also they were guided to visit a speed measurement site, and then asked to report the test results. 

MAJOR FINDINGS

Settings for four surveys

Survey 2009 Survey 2011 Survey 2012 Survey 2013

Period From Nov. 17, 2009,till Nov. 26, 2009

From Jan. 24, 2011, till Jan. 27, 2011

From Mar. 30, 2012, till Apr. 25, 2012*

From Mar. 14 , 2013, till Mar. 19, 2013.

Sample area All nation All nationKanto area, including Tokyo metropolitan 

areaAll nation

Research firmNTTCom Online 

Marketing Solutions Corporation

Rakuten Research, Inc.

NTTCom Online Marketing Solutions 

Corporation

NTTCom Online Marketing Solutions 

Corporation

Sample size 1,117 768 1,024 520

Measurement sitehttp://speedtest.goo.

ne.jp/ http://speedtest.net http://speedtest.net http://speedtest.net

Location of themeasurement site Tokyo Nearest test site Tokyo Nearest test site

Note *: Includes 3 week suspension due to the problems of the measurement site.

Survey 2009

46.0%

52.5%

34.6%

18.7%

11.2%

13.5%

36.6%

22.9%

25.6%

0% 10% 20% 30% 40% 50% 60%

ADSL 8M

ADSL 10M

ADSL 12M

ADSL 24M

ADSL 40M

ADSL 50M

cable 30M

FTTH 100M

Sample Average

Actual Download Speed / Advertised Download Speed

Survey 2011

41.9%

25.2%

19.1%

51.0%

40.0%

44.0%

22.8%

22.7%

25.1%

27.2%

0% 10% 20% 30% 40% 50% 60%

ADSL, below 20Mbps

ADSL, 20-35Mbps

ADSL, above 35Mbps

cable, below 20Mbps

cable, 20-35Mbps

cable, 35-100Mbps

cable, above 100Mbps

FTTH（for Multi Dwelling Unit）

FTTH（for Single Dwelling Unit）

Sample Average

Actual Download Speed / Advertised Download Speed

Survey 2012

25.0%

23.8%

17.4%

25.8%

40.0%

22.5%

21.8%

15.3%

26.3%

20.0%

24.4%

7.0%

8.0%

24.0%

0% 10% 20% 30% 40% 50%

ADSL, average

ADSL, NTT

ADSL, Power Co.

ADSL, non-NTT telco

cable, average

FTTH (for Multi Dwelling Unit), average

FTTH (for MDU), NTT

FTTH (for MDU), Power Co.

FTTH (for MDU), non-NTT telco

FTTH (for Single Dwelling Unit), average

FTTH (for SDU), NTT

FTTH (for SDU), Power Co.

FTTH (for SDU), non-NTT telco

Sample Average

Actual Download Speed / Advertised Download Speed

Survey 2011, by ISP groupe

24.4%

28.8%

25.3%

26.2%

36.3%

27.0%

26.5%

0% 10% 20% 30% 40%

NTT-group ISPs

non-NTT telco ISPs

vender ISPs

Power Co ISPs

cable ISPs

Independent ISPs

Other

Actual Download Speed / Advertised Download Speed

Survey 2011: Influence of Wi‐Fi

41.4%

25.8%

19.1%

51.9%

43.2%

48.1%

25.9%

24.3%

26.9%

28.6%

43.0%

23.1%

19.1%

48.8%

32.3%

31.6%

12.0%

19.1%

20.5%

23.9%

0% 10% 20% 30% 40% 50% 60%

ADSL, below 20Mbps

ADSL, 20-35Mbps

ADSL, over 35Mbps

cable, below 20Mbps

cable, 20-35Mbps

cable, 35-100Mbps

cable, over 100Mbps

FTTH (for MDU)

FTTH (for SDU)

Sample Average

Actual Download Speed / Advertised Download Speed

E2E fixed line

Wi-Fi connection

Note: Samples for E2E fixed line are different from samples for Wi‐Fi connection.

Survey 2012: Influence of Wi‐Fi

24.3%

39.8%

24.6%

21.4%

25.1%

31.5%

41.6%

13.5%

15.8%

19.8%

0% 10% 20% 30% 40% 50%

ADSL

cable

FTTH (for MDU)

FTTH (for SDU)

Sample Average

Actual Download Speed / Advertised Download Speed

E2E fixed lineWi-Fi connection

Note: Samples for E2E fixed line are different from samples for Wi‐Fi connection.

Survey 2009,  by time of the day

26.1% 25.9% 25.6% 25.7%

33.3%

23.5%

15.6%

24.2%

0%

10%

20%

30%

40%

0:00-8:00 8:00-16:00 16:00-24:00 Average

Actual / Advertised

Weekdays Weekends, Holidays

Survey 2011, by time of the day

27.1%

35.6%

32.0%

26.7%

32.6%

21.6%

0%

10%

20%

30%

40%

0:00-4:00 4:00-8:00 8:00-12:00 12:00-16:00 16:00-20:00 20:00-24:00

Actual / Advertised

41.8%

57.5%

29.9%

40.8%

20.9%

7.8%

35.3%

0% 20% 40% 60%

ADSL, average（N=69)

cable, average（N=42）

FTTH, average（N=252)

FTTH100Mbps（N=155)

FTTH200Mbps(N=34)

FTTH1Gbps(N=63)

Sample Average (N=363)

Actual Download Speed / Advertised Download Speed

Survey 2013: tentative summary

International Comparison of software‐based measurements

25.6%

27.2%

24.0%

35.3%

51.3%

44.3%

46.0%

65.5%

60.2%

0% 20% 40% 60% 80%

Japan (Nov. 2009)

Japan (Jan. 2011)

Japan (Mar.-Apr. 2012)

Japan (Mar. 2013)

U.S. (2009, average)

U.S. (2009, median)

U.K. (May, 2010)

Australia (2008Q4)

Ireland (2008)

Source: Created on the basis of FCC （2010）, Ofcom（2010）, and Epitiro （2009a, 2009b）, except Japan’s results.