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TR 23.782 (SA6)
Study on mission critical communication interworking
between LTE and non‑LTE systems

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(W-zip) V15.0.0    2017/06    101 p.

Rapporteur:  Mr. Monnes, Peter
See also:  MCX-related TS/TR    

The objective of this technical report is to study and identify solutions suitable for interworking between LTE mission critical systems and non-LTE mission critical systems that satisfy the MCPTT requirements in TS 22.179 and the MCData requirements in 22.282 (SDS only).

The present document refers to an IWF entity as an editorial convenience. The structure and functionality of the IWF is out of scope of the present document. The definition of IWF-1 and interactions with IWF-1 by the MCPTT system and the definition of IWF-2 and interactions with IWF-2 by the MCData (SDS only) are in scope of the present document.


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1   Scope   Word-p. 10
2   References
3   Definitions and abbreviations   Word-p. 11
4   Interworking scenarios   Word-p. 12
5   Key issues   Word-p. 18
5.1   Identity
5.2   Homing and affiliation
5.3   Session setup and termination
5.4   Media plane   Word-p. 22
5.5   Encryption   Word-p. 24
5.6   Group management   Word-p. 27
5.7   Prioritisation and pre-emption
5.8   Floor control   Word-p. 30
5.9   MCData SDS
6   Solutions   Word-p. 33      Up
6.1   General solutions
6.2   Identity   Word-p. 35      Up
6.3   Homing and affiliation
6.4   Session setup and termination
6.4.1   Solution #3-1: Private call with parameter negotiation solution
6.4.2   Solution #3-2: Private call initiated by LMR user to MCPTT user   Word-p. 43
6.4.3   Solution #3-3: Group call on a temporary group
6.4.4   Solution #3-4: Group call on an interworking group
6.4.5   Solution #3-5: Late entry in interworking group call
6.4.6   Solution #3-6: Group call over linked group
6.5   Media plane
6.6   Encryption
6.7   Group management
6.7.1   Solution #6-1: Group regroup
6.7.2   Solution #6-2: Group regroup between MCPTT and LMR system in MCPTT system
6.7.3   Solution #6-3: Group creation between MCPTT and LMR system
6.7.4   Solution #6-4: Local group regrouping within each system
6.8   Prioritization and pre-emption
6.9   Floor control
6.10   MCData SDS   Word-p. 86
7   Overall evaluation      Up
8   Conclusions   Word-p. 97
8.1   General
8.2   Conclusions on key issues
A   Change history   Word-p. 101

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