| Discussion and conclusion:
Revision of S2-160592. Agreed in parallel sessions. This was Block approved.
TD S2 160014 LS from SA WG6: LS on potential need of PCC enhancement for MCPTT. (SA WG6) (Revision of TD S2 153760).
Abstract: SA WG6 has identified an issue in how to control the number of EPS bearers used in parallel for MCPTT media. The maximum number of radio bearers (UM DRB) is three according to TS 36.331, Annex B. Specifically there is a risk that a bearer modification request will be rejected if the maximum number of active bearers has been reached. If an MCPTT group call is modified to an MCPTT emergency call a bearer modification request to adjust the priority shall never be rejected due to that the maximum number of bearers has been reached. SA WG6 has discussed one possible procedure to handle this issue. The procedure is discussed and described in contribution S6-151279. Action: SA WG6 kindly request SA WG2 to evaluate the proposed architecture in S6-151279 and evaluate the ability to include the proposed PCC enhancement in Rel 13.
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