In some cases, a User or UE will use multiple independent MCX Services. The intention in this case is that each service will operate totally independently of the other services and should not cause service, capability or capacity interaction problems. It is understood that different UE may have different abilities to cope with the demands of simultaneous services. The requirements in subclause 8.2.2
identify how to handle simultaneous services which are intended to be completely independent of each other but limits in total capacity to handle multiple services and multiple instances within a service is left for suppliers to characterise for their products.
Where independent functionality between services is constrained due to transport capacity limitations, those requirements are indicated in the subclause on Priority between Services.
When the constraint is due to the service itself (e.g. Audio embedded within a video and MCPTT speech both delivering audible signals) any potential conflict may be avoided by action in the network part of the service but these actions are not specified. In subclause 8.2.2
actions taken by a single UE in case of conflict not resolved in the network are specified.
Except where expressly stated each MCX Service shall operate independently of each other MCX Service.
Any floor control facility remains completely independent for each of simultaneous MCX Services except where expressly stated.
A user shall be able to transmit on one MCX Service and receive on another without service interaction limitations.
A user shall be able to transmit on different MCX Services at essentially the same time without service interaction limitations.
A user shall be able to receive on different MCX Services at essentially the same time without service interaction limitations except where services are competing for the same unsharable resource which may include the display, audio transducers, etc.
When operating multiple MCX Services on the same network, radio resources shall be able to be utilized in an efficient manner for all MCX Services up to certain thresholds defined for each MCX Service and/or the combination of MCX Services. The radio resource allocation for each MCX Service and the combination of MCX Services shall be flexible based on demand, or allocated in a predefined manner.
The network shall be able to assign radio resources so that resources assigned to each MCX Service, or the combination of all MCX Services stays below a threshold, subject to the agreement between the 3GPP network operator and the Mission Critical Organization(s) (e.g., 3GPP network can be operated by Mission Critical Organization(s), or 3GPP network is operated by commercial operator), for resources to be used for MCX Services without impacting other non-MCX Services.