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[2017-2020] : [SG12] : [Q12/12]

[Declared patent(s)]  - [Associated work]

Work item: G.1028.2 (ex G.CSFB)
Status: Consented on 2019-05-16 
Approval process: AAP
Type of work item: Recommendation
Version: New
Provisional name: G.CSFB
Equivalent number: -
Timing: 2019 (No priority specified)
Liaison: ETSI TC STQ, 3GPP
Subject/title: Assessment of the LTE circuit switched fall back - impact on voice QoS
Summary: While the LTE circuit switched fall back (CSFB) can be considered as a procedure separated from voice service delivery over LTE, it has an impact on the QoS for the voice services and is therefore worth of attention and consideration. Indeed, operators have to make sure that clients purchasing LTE-capable devices must keep the level of QoS they used to have with their former 2G and 3G devices, even when VoLTE is not available (for any reason: network, device). Therefore, specific and complementary KPIs are proposed in this Recommendation, together with procedures for their assessment. It should be noted that this Recommendation focuses only on the specific impact of CSFB, the information it contains must be considered as a complement to provision already provided in the Recommendation ITU-T G.1028: "End-to-end quality of service for voice over 4G mobile networks".
Comment: -
Base text(s):
Contact(s):
Vincent Barriac, Editor
Malick Sylla, Editor
Yvonne Umutoni, Editor
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First registration in the WP: 2017-10-11 10:29:51
Last update: 2019-05-28 15:13:53