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TS 22.153SA1
MPS – Multimedia Priority Service

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WI Acronym:  PRIOR_EMR
Rapporteur:  Mr. Garrahan, JamesApplied Communication Sciences

The response to emergency situations (e.g., floods, hurricanes, earthquakes, terrorist attacks) depends on the communication capabilities of public networks. In most cases, emergency responders use private radio systems to aid in the logistics of providing critically needed restoration services. However, certain government and emergency management officials and other authorised users have to rely on public network services when the communication capability of the serving network may be impaired, for example due to congestion or partial network infrastructure outages, perhaps due to a direct or indirect result of the emergency situation.
Multimedia Priority Service, supported by the 3GPP system set of services and features, is one element creating the ability to deliver calls or complete sessions of a high priority nature from mobile to mobile networks, mobile to fixed networks, and fixed to mobile networks.
The scope of this TS is to specify those requirements of MPS necessary to provide an end-to-end service and to interwork with external networks where needed. Service interactions with external networks are considered within the scope of this TS although these interactions may be specified in other standards.

full Table of Contents for  TS 22.153  Word version:   17.1.0

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1  ScopeWord-p. 6
2  References
3  Definitions and abbreviations
4  General description
MPS is applicable in EPS and 5GS systems.
MPS provides priority treatment to increase the probability of an authorized Service User's Voice, Video, and Data communication session being successful. Some form of priority treatment is applied to the MPS invocation and session establishment, and continues to be applied until the MPS session is released. The priority treatment may be applied before the invocation if a greater probability of success in receiving, recognizing, and processing the invocation is needed.
MPS allows qualified and authorized users to obtain priority access to the next available radio channel on a priority basis before other PLMN users, during situations when PLMN congestion is blocking session establishment attempts. In addition, MPS supports priority sessions on an "end-to-end" priority basis.
MPS is intended to be utilised for Voice, Video, and Data bearer services, including the Data Transport Service, in the Packet-switched (PS) domain and the IP Multimedia Subsystem (IMS). It also involves priority transitioning of MPS service (e.g., Voice) to the CS domain when the network does not support the requested service in the PS domain. MPS Voice, Video and Data sessions are based on providing priority treatment to the corresponding commercial services offered to the public.
MPS is also intended to be utilized for IoT communications through machine interactions that may not directly involve a human Service User.
5  High level requirementsWord-p. 8
6  MMI aspects
7  Security and privacyWord-p. 14
8  Charging aspects
9  Service specific aspects [R17]Word-p. 15
A  Change historyWord-p. 25

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