TSDSI SG2 Organized Seminar

Public Safety(SESSION I: Global PPDR Standards)

3GPP MCData Overview

Date: 12 Jan, 2018

Basavaraj Pattan (Samsung)basavarajjp@samsung.com

Introduction of MCData

MCData TS 23.282 Stage-2 specification defines a suite of data services (i.e., short data service, file distribution, conversation management, enhanced status) required to support MC services over LTE

◊ based on requirements in TS 22.282 and TS 22.280

◊ specifies stage 2 functional architecture and information flows/procedures

Utilizes the common functionality defined in 3GPP TS 23.280 for:

Stage-3 protocol aspects for stage-2 defined functionality is in MCData TS 24.282 (control plane) and TS 24.582 (media plane)

Operation modes for MCData

◊ On-network

◊ Off-network

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Functionality

MCData Service Requirements - Outline

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- Group & One-to-one

- On-network & Off-network

Short Data Service (SDS)

- Group & One-to-one

- Mandatory & Non-mandatory download

- On-network & Off-network

File Distribution (FD)

- Automatic transmission for SDS

- Mandatory & Non-mandatory download

- On-network & Off-network

Transmission & Reception Control

- Originator initiated

- Server initiated with & without prior indication

Communication Release

- Conversation management

- Enhanced status

- On-network & Off-network

Specific Services

Service

Short Data Service (SDS) [1/2]

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Are you at gate B?

Are you at gate B?

Yes at gate B?

Yes at gate B?

MCData Network

VIPs arriving at gate B, prepare security.

Command Center

VIPs arriving at gate B, prepare security.

Group

MCData Network

One-to-one SDS

Group SDS

Examples of SDS data (text, binary, application data, URL or combinations of these) are:

location information

command instructions to invoke apps

delivery and read reports

user to user

applications data to app/user

enhanced status

• Standalone (one unidirectional transaction) and

Session (bi-directional transactions) SDS

• Standalone SDS over signalling plane (small data) and

media plane (large data)

• Delivery and read report is optional to request

• Read report can sent in a separate transaction (e.g.,

when media plane is used for data delivery)

Short Data Service (SDS) [2/2]

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Commander

Fire Group

Health ReportHealth Report

RemoteinstructionsRemote

instructions

ApplicationStarted

MCData Network

Application control

Are you at gate B?

Yes at gate B?

Off-network SDSVIPs arriving at gate B, prepare security.

Group

File Distribution (FD)

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MCDataNetwork

Commander

Fire Group

Download completed

Report

Building map

Download completed Report

Mandatory File Distribution

MCData Network

Incident Video

Post incident video sharing

NOW DEFER REJECT

Non-mandatory File Distribution

• Only unidirectional FD transaction

• One-to-one and Group FD

• FD using HTTP and media plane

• Mandatory download and non-mandatory (deferred)

download

• Optional download completed report request

• On-network and Off-network

Specific Services

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Conversation Management

• Collection of related MCData transmissions (SDS, FD)

• Unique Conversation Identifier is used to bind related MCData transmissions

• On-network and Off-network

• Admin preset values for enhanced status per group basis

• Status delivered via group standalone SDS using signalling control plane procedures

• Procedure specified for both on-network and off-network

Arriving to hospital

Going to pick patient

MCData Network

Enhanced Status

Status corresponds to activity of

MC users during their operation(s)

Transmission & Reception Control

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MCData Network

Transmission and Reception Control

1

2 3

Send Data Deliver Data

Check Tx/Rx

method

Return Tx/Rx

method

Control indication

4a

4b

• Automatic transmission for SDS

• No or basic checks before sending data

• Control indications – no permission, no affiliated

members

• Send data with mandatory download

• Applicable to FD

• Control indications – no permission, no affiliated

members, exceeding transmit time/size, request

queued

• Send data without mandatory download

• Applicable to FD using HTTP

• Control indications to sender – no permission, no

affiliated members, exceeding data transmit

time/size, request queued

• Control indications to receiver – periodic

announcement of stored data availability, expired

data

• Accessing list of deferred data group communications

On-demand fetching of list of stored data availability

Based on the configurations, advocates reception mode and

terminate transmission when there is no longer a need to transmit

Communication Release (on-network)

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• User initiated

• Applicable to data transfer over media plane and HTTP

• If file removed from storage, recipients control indication – data not available

• Server initiated without prior indication

• Forced release for ongoing data communication over media plane, HTTP

• Applicable to both one-to-one and group SDS and FD

• Server initiated with prior indication

• Sender has option to extend communication release

• Authorized user initiated with or without prior indication

• Similar to server initiated procedures

Potential MCData work in future releases

MBMS for File Distribution

Interworking with non LTE data systems

Robots (Unmanned Aerial Vehicle - UAV) remote control

Data Streaming

IP Connectivity (Database enquiries and secured internet access)

Relay support

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Thank You