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Content for  TS 23.283  Word version:  18.1.0

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10.11 Location  10.11.1 Location of current talker  10.11.2 Location of current talker (MCPTT server to IWF)  10.11.3 Location of current talker (IWF to MCPTT server) 
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10.11  Location  p. 151

10.11.1  Location of current talker  p. 151

Subclause 10.6.2.7 of TS 23.379 describes a high-level procedure to provide the location of the current talker to all the receiving MCPTT users.

10.11.2  Location of current talker (MCPTT server to IWF)  p. 151

Figure 10.11.2-1 shows the high-level procedure to for MCPTT service to provide the location information about the current talking user to all the receiving MCPTT users and the IWF.
Pre-conditions:
  1. There is on-going group call involving MCPTT client 1 and MCPTT client 2 and the IWF.
  2. MCPTT client 1 is the current talking user.
  3. MCPTT server has obtained the location information of MCPTT client 1.
Copy of original 3GPP image for 3GPP TS 23.283, Fig. 10.11.2-1: Providing location information of the current talker
Figure 10.11.2-1: Providing location information of the current talker
(⇒ copy of original 3GPP image)
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Step 1.
MCPTT client 1 gets the floor to transmit voice media.
Step 2.
The MCPTT server checks the privacy policy (authorisation to provide location information to other MCPTT users on a call when talking, as defined in TS 23.379 Annex A.3) of the current talking MCPTT user to decide if the location information of MCPTT client 1 can be provided to other MCPTT users on the call.
Step 3.
If the privacy policy permits, the MCPTT server provides the location information of MCPTT client 1 to MCPTT client 2 and the IWF. The procedures for this are described in subclause 10.9.3.6 of TS 23.280. Optionally, the location information may be provided in the floor taken message sent to MCPTT client 2 and the IWF according to subclause 10.9.1.3.1 of TS 23.379, if the privacy policy permits.
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10.11.3  Location of current talker (IWF to MCPTT server)  p. 152

Figure 10.11.3-1 shows the high-level procedure to for the IWF to provide the location information about the current LMR talking user to all the receiving MCPTT users.
Pre-conditions:
  1. There is on-going group call involving MCPTT client 1 and MCPTT client 2 and the IWF.
  2. An LMR user is the current talking user through the IWF.
Copy of original 3GPP image for 3GPP TS 23.283, Fig. 10.11.3-1: Providing location information of the current talker
Figure 10.11.3-1: Providing location information of the current talker
(⇒ copy of original 3GPP image)
Up
Step 1.
The IWF gets the floor to transmit voice media.
Step 2.
The MCPTT server checks the privacy policy (authorisation to provide location information to other MCPTT users on a call when talking, as defined in TS 23.379 Annex A.3) of the current talking IWF user to decide if the location information of the user on the IWF can be provided to other MCPTT users on the call.
Step 3.
The MCPTT server provides the location information of the IWF user to MCPTT client 1 and MCPTT client 2. The procedures for this are described in subclause 10.9.3.6 of TS 23.280. Optionally, the location information may be provided in the floor taken message sent to MCPTT client 2 and the IWF according to subclause 10.9.1.3.1 of TS 23.379.
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