Delivery of identification information

摘要

When a communication session is implemented, the communications of a direct mode terminal may be mediated via a direct mode gateway such that messages of a direct mode first terminal are addressed with identification information of the direct mode gateway. In the invention identity information of a user of the direct mode terminal is delivered to a trunked mode terminal in a user plane signalling message of the communication session. In terminal procedures identity of the direct mode gateway may be replaced by identity information received in the user plane signalling message. Identity of the direct mode terminal is then in a simple manner made available to terminal procedures of the trunked mode terminal.

主权项

1. A method comprising:
implementing in a communications network a communication session between a group of participants, the group of participants comprising at least a first terminal that operates in direct mode and a second terminal that operates in trunked mode; mediating communications of the first terminal via a direct mode gateway such that messages of the first terminal are addressed in the communications network with identification information of the direct mode gateway; implementing in the second terminal a terminal procedure that applies identification information of a participant of the session; delivering identification information of the first terminal to the second terminal in a payload of a user plane signalling message of the communication session, the user plane signalling message being a signalling message that comprises address information for routing purposes, transmits control information, including the identification information of the first terminal, in the payload and steals, for the control information, communication resource from user plane traffic messages of the communication session; using in the terminal procedure the identification information of the first terminal delivered in the payload of the user plane signalling message instead of the address information.