Content for TR 22.879 Word version: 14.0.0
0 Introduction
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Overview
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0 Introduction p. 11
The present document studies use cases and identifies potential requirements for Mission Critical Video Services over LTE (MCVideo Service). The MCVideo Service can be used for public safety and security applications and also for general commercial applications requiring critical availability or service level (e.g., utility companies and railways).
As far as possible, the present documents will reuse principles and definitions defined for the MCPTT service.
1 Scope p. 12
The present document studies use cases and identifies potential requirements for operation of the MCVideo Service. MCVideo makes use of capabilities included in Group Communications System Enablers for LTE (GCSE_LTE), Proximity based Services (ProSe), and Isolated E-UTRAN operation for Public Safety, with additional requirements specific to the MCVideo Service. The MCVideo Service can be used for public safety applications and also for general commercial applications (e.g., utility companies and railways).
As far as possible, the MCVideo service will reuse applicable elements from MCPTT service.
2 References p. 12
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
3 Definitions and abbreviations p. 12
3.1 Definitions p. 12
For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
Affiliated MCVideo Group Member:
An MCVideo Group Member who has indicated an interest in the group and is prepared to receive and/or transmit Group Communications from/to the particular MCVideo Group.
Late entry:
An Affiliated MCVideo Group Member joins in an in progress MCVideo Group Communication.
MCVideo Administrator:
An individual authorized to control parameters of the MCVideo Service for an organization including, for example, user and group definition, user/group aliases, user priorities, group membership/priorities/hierarchies, security and privacy controls.
MCVideo Emergency Alert:
A notification from the MCVideo UE to the MCVideo Service that the MCVideo User has an emergency condition.
MCVideo Emergency Group Communication:
An urgent MCVideo Group communication that highlights the potential of death or serious injury to the initiator.
MCVideo Emergency State:
A heightened condition of alarm for an MCVideo User indicating a need for immediate assistance due to a personal life-threatening situation.
MCVideo Group:
A defined set of MCVideo Users identified independently of transport or network type.
MCVideo Group Member:
An MCVideo User who has been authorized to participate in Group Communications of a particular MCVideo Group.
MCVideo quality:
The video delivered to end users that allows them to recognize objects. The ability of a Mission Critical Organization to utilize the required video to perform the purpose intended. For example if the purpose of the video is to capture license plates on vehicles in a range of outdoor conditions, video quality is measured in the ability of the video outputs to provide the specific information across a range of environmental conditions.
MCVideo Request:
The action taken by an MCVideo User to request the permission to transmit video.
MCVideo Service:
A video communication service supporting applications for Mission Critical Organizations and mission critical applications for other businesses and organizations (e.g., utilities, railways) with fast setup times, high availability, reliability and priority handling.
MCVideo system:
The collection of applications, services, and enabling capabilities required to provide Mission Critical Video for a Mission Critical Organization.
MCVideo UE:
A UE that enables an MCVideo User to participate in MCVideo Service.
MCVideo User:
A user of an MCVideo Service, who has a device with the capability to participate in MCVideo Services.
MCVideo User Profile:
The set of information that allows an MCVideo User to employ the MCVideo Service in a given role and/or from a given MCVideo device.
Mission Critical Video:
A group communication service with fast setup times, ability to handle large groups, strong security and priority handling.
Off-Network MCVideo Service:
The collection of functions and capabilities required to provide MCVideo using ProSe Discovery and the ProSe Communication path for MCVideo Users using Public Safety ProSe-enabled UEs as a direct communication between UEs using E-UTRA.
MCVideo Participant:
An MCVideo User who is currently receiving and/or transmitting in an MCVideo Group communication or a one-to-one communication.
MCVideo participant type:
Functional category of the MCVideo Participant (e.g., first responder, second responder, dispatch, dispatch supervisor), typically defined by the MCVideo Administrators.
Pre-emption:
The act of terminating on-going calls in order to free up resources for a higher priority call request.
Real Time:
Of or relating to systems that update information at the same rate as they receive data, enabling them to direct or control a process such as video recording and display. Sometimes referred to as live or real life timing of events.
Real-time video:
Video viewed at the same time it is being shot
Receiving MCVideo Group Member:
An Affiliated MCVideo Group Member who is currently receiving Group Communication from an MCVideo Group.
Selected MCVideo Group:
The MCVideo Group that a particular Affiliated MCVideo Group Member uses for transmission.
Transmitting MCVideo Group Member:
An Affiliated MCVideo Group Member who is currently transmitting a Group Communication to a Selected MCVideo Group.
MCVideo User ID:
The main unique identifier for an MCVideo User.
3.2 Abbreviations p. 13
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply.
An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
IOPS
Isolated E-UTRAN Operation for Public Safety
MCPTT
Mission Critical Push to Talk
4 Overview p. 14
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