![Page 1: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/1.jpg)
Push-to-Talk over Cellular
![Page 2: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/2.jpg)
References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC
Release 1.0 Push-to-Talk over Cellular (PoC); Architecture; PoC Release
1.0 Push-to-Talk over Cellular (PoC); List Management and Do-
not-Disturb; PoC Release 1.0 Push-to-Talk over Cellular (PoC); Signaling Flows; PoC
Release 1.0; Push-to-Talk over Cellular (PoC) User Plane; Transport
Protocols; PoC Release 1.0; Push-to-Talk over Cellular (PoC) User Plane; (E)GPRS /
UMTS Specification; PoC Release 1.0;
![Page 3: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/3.jpg)
What is Push-to-talk
Basically behaves like a Walkie-Talkie phone
Voice: RTP
Voice: RTP
TalkingListenTalking
Listen
JoanJohnson
![Page 4: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/4.jpg)
What is PoC
Push-to-Talk over Cellular Based on 3GPP IP Multimedia
Subsystem (IMS) Access Network utilizes UTMS
GPRS network Support group talk Utilize RTCP for floor control
![Page 5: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/5.jpg)
Why PoC User’s view
There’s usually one talking and another listening in a phone call
Save bandwidth = save money Advanced services: group talk, auto-answer,
floor control Operator’s view
Advanced service: compete against other operator, increases revenue
Users tend to use this service more often and longer = more money
![Page 6: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/6.jpg)
PoC Architecture
![Page 7: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/7.jpg)
Summary of basic features 1-to-1 communication feature
Instant personal talk Request to talk
Group talk features Chat group talk Instant group talk Ad-hoc instant group talk Instant personal alert
![Page 8: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/8.jpg)
User identification and addressing Email style (URI) Telephone number (TEL URL) Contact list management
User list URI Display name
Group identity URI Display name
![Page 9: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/9.jpg)
Access management
Do-not-Disturb Reject list
* URI
Access list * URI
![Page 10: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/10.jpg)
PoC Server
SIP signaling SIP session handling RTP and RTCP signaling Policy control for access to groups Group session handling Do not disturb functionality Floor control functionality
![Page 11: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/11.jpg)
GLMS (Group and List Management Server) Users use GLMS to manage groups, contact
lists and access lists and Do-not-Disturb indication
contact list : a kind of address book group list : users can define PoC group access list : who is allowed to initiate talk
session (Only used by PoC server) Do-not-Disturb (DnD) : set to block all
incoming talk session request UE-GLMS interface : HTTP/XML protocols shall
be used or WAP
![Page 12: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/12.jpg)
High level procedures
Early Session dialog establishment Early media procedure Late media procedure
![Page 13: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/13.jpg)
Early session and auto answer
![Page 14: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/14.jpg)
Early media and auto answer
![Page 15: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/15.jpg)
Late media and manual answer
![Page 16: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/16.jpg)
Floor control Utilize RTCP to ensure singular access
to the PoC media resource Floor request : UE requests PoC server Floor grant : PoC server notifies UE Floor taken : PoC server notifies UE Floor deny : PoC server notifies UE Floor release : UE notifies PoC server Floor idle : PoC server notifies UE Floor revoke : PoC server revokes the
media resource
![Page 17: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/17.jpg)
UE state transition diagram
![Page 18: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/18.jpg)
PoC server transition diagram
![Page 19: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/19.jpg)
Floor Request Procedure
![Page 20: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/20.jpg)
Nearly Simultaneous Floor Request
![Page 21: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/21.jpg)
Floor Release Procedure
![Page 22: Push-to-Talk over Cellular. References Proposed by Ericsson, Motorola, Siemens, Nokia Push-to-talk over Cellular (PoC); User Requirements; PoC Release](https://reader035.vdocument.in/reader035/viewer/2022062619/55163712550346b2068b4f1a/html5/thumbnails/22.jpg)
Example of an instant group talk session