Content for  TS 23.333  Word version:  17.1.0

A Floor Participant may request one or more Floors by sending a BFCP request message to the MRFP (FCS). The MRFP (FCS) informs the Floor Chair, if present, about a Floor Participant's Floor request via BFCP. The Floor Chair sends to the MRFP (FCS) the decision to the Floor Participant's Floor requests. If the Floor is not Chair-controlled, the FCS located in the MRFP shall make the decision itself according to the Floor Control Algorithm. The MRFP shall notify the MRFC the Floor change request decision via the "Report Floor Request Decision" procedure described in Clause 6.2.13.2.4. The MRFC requests the MRFP to modify the media properties associated with the Floor Request decision as described in Clause 6.2.13.2.5. The MRFC informs the MRFP that the requested media changes to satisfy the new Floor permissions have been completed using the "Confirm Media Update" procedure, see Clause 8.49. The MRFC may request the MRFP to play tones or announcements for indicating when a user gains or loses Floor permissions.

When the MRFC receives an indication that the Floor control connection is to be closed, the MRFC shall command the MRFP to release the Floor control connections. The Floor control connection shall also be released by the MRFP when the termination for that connection is removed. The Floor related BFCP signalling resources are released by the MRFP when the Floor control connection is released. If a Floor Participant owns a Floor when releasing the Floor control connection, the MRFP(FCS) shall revoke the Floor permission.

Figure 6.2.13.1 shows the message sequence chart example for Floor control on a termination which is not the Floor Chair.