This Technical Specification defines the requirements for the support of IP Multimedia Subsystem (IMS) group management capability. IMS group management capability provides a possibility to manage network based groups. IMS group management allows defining different roles and rights to the members of a group, defining group level information and properties, etc.
The IMS group management is a generic capability that can be utilised together with several different services. Some examples of the services that can use IMS group management are
Presentity has a control of who is able to see his presence information. The control is carried out via access control lists, which can be managed with IMS group management. Number of presentities can be subscribed via a list of presentities. The list can be managed with IMS group management.
Administrator of the chat is able to control users that are allowed to participate in the chat. The control is carried out via access control lists, which can be managed with IMS group management.
In messaging the server may be able to distribute the messages to several recipients based on the delivery list. The content of the delivery list can be managed with IMS group management.
The above examples show only very limited set of possibilities where IMS group management can be utilised. The use of IMS group management is not restricted to these
The present document defines the stage one description of the IMS group management. Stage one is the set of requirements which shall be supported for the provision of IMS group management, seen primarily from the subscribers' and service providers' points of view.
The TS includes information applicable to network operator, service provider, terminal and network manufacturer.
Additional functionalities not documented in the TS are considered outside the scope of this TS. Such additional functionality may be on a network-wide basis, nation-wide basis or particular to a group of users. Such additional functionality shall not compromise conformance to the requirements of the IMS group management defined in this specification.
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.
3GPP TR21.905: 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Vocabulary for 3GPP Specifications
 TS 22.141
3rd Generation Partnership Project;Technical Specification Group Services and System Aspects; Presence Service; Stage 1
 TS 22.340
3rd Generation Partnership Project;Technical Specification Group Services and System Aspects; IMS Messaging; Stage 1
Group administrator has the full set of rights for viewing and managing the group identifier, group specific information, service specific group information, member identifiers and group member properties.
Group content includes the group identifier, the group specific information, the service specific group information, and the list of group member identifiers with the associated group member properties.
Group member is an entity in the group.Further 3G related definitions are given in TR 21.905
IP Multimedia Subsystem