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Question 11/5

Question 11/5 – EMC requirements for the information society
(Continuation of Question 16/5)


The emergence of the information society is leading to the use of a complex variety of both wireless and wireline technologies for the exchange of voice and data over telecommunications networks. Examples include:

  • the deployment of public Wi-Fi access points within airports, train stations, restaurants and hotels for data transfer by Personal Computers, Personal Digital Assistants etc.;
  • the use of new Access Network technologies for the delivery of broadband data services, such as Power Line Communications (PLC) technology;
  • the use of new wireless Access technologies (Wi-MAX, UWB, NFC, LTE, etc.).;
  • the use of various type of wireless or wireline equipments such as the mobile phone, wideband data access terminal equipment and pad equipments.

The adoption of each new technology changes the Electromagnetic (EM) environment within which these new and existing technologies operate. Hence it is necessary to study methodologies for predicting and mitigating EMC problems that may prevent these technologies from working successfully.

The following Recommendation, in force at the time of approval of this Question, falls under its responsibility:

  • K.79.


Study items to be considered include, but are not limited to:

  • Characterization of the Electromagnetic (EM) environment created by the operation of the new radio services in different frequency band range (e.g. Wi-Fi, Wi-MAX, UWB, NFC, LTE, LTE-A);
  • EMC requirements and mitigation methodology to allow deployment within non-telecommunications environment (e.g. airport, railway station, train, hospital, hotel, vehicle etc.);
  • Evaluation and prediction methodology of performance degradation due to electromagnetic compatibility disturbance related to multiple wireless technologies;
  • Evaluation and prediction methodology of performance degradation due to electromagnetic interference between wireless and wireline services;
  • Evaluation and mitigation methodology of electromagnetic disturbance between different modules in converged telecommunication equipments;
  • EMC requirements for the typical equipments widely used in this information society, including both the wireless and wireline equipments;
  • Electromagnetic Compatibility between wireless technologies and non-telecommunications equipment (e.g. hearing aids, microwave oven using 2.4 GHz).


Tasks include, but are not limited to:

  • A new generic Recommendation on the EMC requirements and test methods of telecommunication terminal equipment;
  • Update the electromagnetic environment Recommendation K.79 taking into account the newly adopted technologies.

An up-to-date status of work under this Question is contained in the SG 5 work programme (use URL as shown in the table below).




  • K-series


  • 6, 7, 8, 9, 10 and 12/5

Study Groups:

  • ITU-T SG 15
  • ITU-R SG5, ITU-R SG6

Standardization bodies: