Committed to connecting the world
ITU
General Secretariat
Radiocommunication
Standardization
About ITU-T
Events
All Groups
Standards
Resources
BSG
Study Groups
Regional Presence
Join Us
MyWorkspace
Development
ITU Telecom
Members' Zone
Join ITU
ITU-T Recommendations
You are here
Home
>
ITU-T Recommendations
>
ITU-T G.107 (06/2015)
Share
Search by number:
Others:
Content search
Advanced search
Provisional name
Equivalent number
Formal description
Study Groups tree view
All SGs
TSAG
Study Group 2
Study Group 3
Study Group 5
Study Group 9
Study Group 11
Study Group 12
Study Group 13
Study Group 15
Study Group 16
Study Group 17
Study Group 20
ITU-T G.107 (06/2015)
عربي
|
中文
|
English
|
Español
|
Français
|
Русский
E模型,用于传输规划的计算机模型
ITU-T G.107建议书提供了称为E模型的算法,作为通用ITU-T传输评定模型。该计算模型对传输规划者大有裨益,有助于确保用户得到满意的端对端传输性能。该模型的主要输出是传输质量的分级评定。该模式的一个主要特点是采用反映现代信号处理设备影响的传输操作因素。
该建议书的2000年版本提供了E模型的增强型,以便更好地考虑在发送侧室内噪声的影响,并量化失真。在2002年的版本中,由于随机数据包丢失所造成的操作包括在不同的编解码器的参数化方法中。自2003年版本起,提供了在讲话侧低电平情况下增强的建模质量。2005年版对编解码器在(短期)相关的数据包丢失情况下做出更精确的质量预测。2009年版的附录II描述了宽带语音传输的临时操作因素框架。该附录现已更新,以支持新的ITU-T G.107.1建议书。附录III给出了一个参考实现。在当前的版本中,已将该模型扩展为对延时操作进行适当的调整的以及对延时不敏感的使用场景。
电信级或企业级电话系统必须使用缺省的延时敏感参数进行评估,而对于低延时或非常低交互需要的通信系统,需要使用不同的参数评估。附件III中给出了参考实现。
Citation:
https://handle.itu.int/11.1002/1000/12505
Series title:
G series: Transmission systems and media, digital systems and networks
G.100-G.199: International telephone connections and circuits
G.100-G.109: Transmission planning and the E-model
Approval date:
2015-06-29
Approval process:
AAP
Status:
In force
Maintenance responsibility:
ITU-T Study Group 12
Further details:
Patent statement(s)
Development history
Editions
Related Supplement(s)
Related technical papers and reports
Ed.
ITU-T Recommendation
Status
Summary
Table of Contents
Download
10
G.107 (06/2015)
In force
here
here
here
9
G.107 (02/2014)
Superseded
here
here
here
8.1
G.107 (2011) Amd. 1 (06/2012)
Superseded
-
-
here
8
G.107 (12/2011)
Superseded
here
here
here
7
G.107 (04/2009)
Superseded
here
here
here
6
G.107 (08/2008)
Superseded
here
here
here
5.1
G.107 (2005) Amd. 1 (06/2006)
Superseded
-
-
here
5
G.107 (03/2005)
Superseded
here
here
here
4
G.107 (03/2003)
Superseded
here
here
here
3
G.107 (07/2002)
Superseded
here
here
here
2.0
G.107 (2000) Err. 1 (05/2001)
Superseded
-
-
here
2
G.107 (05/2000)
Superseded
here
here
here
1
G.107 (12/1998)
Superseded
here
here
here
ITU-T Supplement
Title
Status
Summary
Table of contents
Download
G-100 series Suppl. 31 (03/1993)
Principles of determining an impedance strategy for the local network
In force
-
here
here
G-100 series Suppl. 32 (03/1993)
Transmission aspects of digital mobile radio systems
In force
-
here
here
G Suppl. 4 (12/1972)
Certain methods of avoiding the transmission of excessive noise between interconnected systems
In force
-
-
here
G Suppl. 5 (10/1984)
Measurement of the load of telephone circuits under field conditions
In force
-
-
here
G Suppl. 7 (12/1972)
Loss-frequency response of channel-translating equipment used in some countries for international circuits
In force
here
here
here
G Suppl. 8 (12/1972)
Method proposed by the Belgian telephone administration for interconnection between coaxial and symmetric pair systems
In force
-
-
here
G Suppl. 17 (10/1984)
Group-delay distortion performance of terminal equipment
In force
-
-
here
G Suppl. 19 (10/1984)
Digital crosstalk measurement (method used by the Administrations of France, the Netherlands and Spain)
In force
-
-
here
G Suppl. 22 (10/1984)
Mathematical models of multiplex signals
In force
-
-
here
G Suppl. 26 (10/1984)
Estimating the signal load margin of FDM wideband amplifier equipment and transmission systems
In force
-
-
here
G Suppl. 27 (10/1984)
Interference from external sources
In force
-
-
here
G Suppl. 28 (10/1984)
Application of transmultiplexers, FDM codecs, data-in-voice (DIV) systems and data-over-voice (DOV) systems during the transition from an analogue to a digital network
In force
-
-
here
G Suppl. 32 (11/1988)
Transfer of alarm information on 60-channel transmultiplexing equipment
In force
-
-
here
G Suppl. 34 (11/1988)
Temperature in underground containers for the installation of repeaters
In force
-
-
here
G Suppl. 35 (11/1988)
Guidelines concerning the measurement of wander
In force
-
-
here
G Suppl. 36 (11/1988)
Jitter and wander accumulation in digital networks
In force
-
-
here
G Suppl. 39 (02/2016)
Optical system design and engineering considerations
In force
here
here
here
G Suppl. 40 (10/2018)
Optical fibre and cable Recommendations and standards guideline
In force
here
here
here
G Suppl. 41 (02/2018)
Design guidelines for optical fibre submarine cable systems
In force
here
here
here
G Suppl. 42 (10/2018)
Guide on the use of the ITU-T Recommendations related to optical fibres and systems technology
In force
here
here
here
G Suppl. 43 (02/2011)
Transport of IEEE 10GBASE-R in optical transport networks (OTN)
In force
here
here
here
G Suppl. 44 (06/2007)
Test plan to verify B-PON interoperability
In force
here
here
here
G Suppl. 45 (09/2022)
Power conservation in optical access systems
In force
here
here
here
G Suppl. 46 (05/2009)
G-PON interoperability test plan between optical line terminations and optical network units
In force
here
here
here
G Suppl. 47 (09/2012)
General aspects of optical fibres and cables
In force
here
here
here
G Suppl. 48 (06/2010)
10-Gigabit-capable passive optical networks: Interface between media access control with serializer/deserializer and physical medium dependent sublayers
In force
here
here
here
G Suppl. 49 (09/2020)
Rogue optical network unit (ONU) considerations
In force
here
here
here
G Suppl. 50 (09/2011)
Overview of digital subscriber line Recommendations
In force
here
here
here
G Suppl. 51 (06/2017)
Passive optical network protection considerations
In force
here
here
here
G Suppl. 52 (09/2012)
Ethernet ring protection switching
In force
here
here
here
G Suppl. 53 (12/2014)
Guidance for Ethernet OAM performance monitoring
In force
here
here
here
G Suppl. 54 (07/2015)
Ethernet linear protection switching
In force
here
here
here
G Suppl. 55 (12/2023)
Radio-over-fibre (RoF) technologies and their applications
In force
here
here
here
G Suppl. 56 (02/2016)
OTN transport of CPRI signals
In force
here
here
here
G Suppl. 57 (07/2015)
Smart home profiles for 6LoWPAN devices
In force
here
here
here
G Suppl. 58 (12/2023)
Optical transport network module framer interfaces
In force
here
here
here
G Suppl. 59 (02/2018)
Guidance on optical fibre and cable reliability
In force
here
here
here
G Suppl. 60 (09/2016)
Ethernet linear protection switching with dual node interconnection
In force
here
here
here
G Suppl. 62 (02/2018)
Gfast certification
In force
here
here
here
G Suppl. 64 (02/2018)
PON transmission technologies above 10 Gb/s per wavelength
In force
here
here
here
G Suppl. 65 (10/2018)
Simulations of transport of time over packet networks
In force
here
here
here
G Suppl. 66 (09/2020)
5G wireless fronthaul requirements in a passive optical network context
In force
here
here
here
G Suppl. 67 (07/2019)
Application of optical transport network Recommendations to 5G transport
In force
here
here
here
G Suppl. 68 (12/2023)
Synchronization operations, administration and maintenance requirements
In force
here
here
here
G Suppl. 69 (09/2020)
Migration of a pre-standard network to a metro transport network
In force
here
here
here
G Suppl. 70 (09/2020)
Supplement on sub 1 Gbit/s services transport over optical transport network
In force
here
here
here
G Suppl. 71 (12/2023)
Optical line termination capabilities for supporting cooperative dynamic bandwidth assignment
In force
here
here
here
G Suppl. 72 (04/2021)
Modelling consideration for optical media networks
In force
here
here
here
G Suppl. 73 (10/2021)
Influencing factors on quality of experience for multiview video (MVV) services
In force
here
here
here
G Suppl. 74 (12/2021)
Network slicing in a passive optical network context
In force
here
here
here
G Suppl. 75 (12/2021)
5G small cell backhaul/midhaul over TDM-PON
In force
here
here
here
G Suppl. 76 (12/2021)
Optical transport network security
In force
here
here
here
G Suppl. 77 (06/2022)
Supplement 77 to ITU-T G-series of Recommendations - Influencing factors on quality of experience (QoE) for video customized alerting tone (CAT) and video customized ringing signal (CRS) services
In force
here
here
here
G Suppl. 78 (09/2022)
Use case and requirements of fibre-to-the-room for small business applications
In force
here
here
here
G Suppl. 79 (12/2023)
Latency control and deterministic capability over a PON system
In force
here
here
here
G Suppl. 29 (03/1993)
Planning of mixed analogue-digital circuits (chains, connections)
In force
-
here
here
Title
Approved on
Download
Roadmap for QoS and QoE in the ITU-T Study Group 12 context (TR-RQ)
2023
here
Considerations on the use of GNSS as a primary time reference in telecommunications
2020
here
Use of G.hn in industrial applications
2020
here
ISDN field trial guidelines
1991
here
Follow us
Twitter
Facebook
YouTube
Flickr
Linkedin
Instagram
Soundcloud
Podcasts
Spotify
Spreaker
TikTok