Implementation of multiple simultaneous calls in a mobile communication system

A mobile communication network, comprising

• means for establishing one traffic channel of the mobile communication network for exclusive use of two or more simultaneous mobile communication network calls of a mobile station, said network calls comprising transparent calls and non-transparent calls
• means for sharing a capacity of said common traffic channel exclusively between said simultaneous calls,
• means for detecting that the mobile communication network is temporarily unable to allocate more transmission capacity or a required amount of transmission capacity to the traffic channel when a new call or connection is set up,
• means for allocating requested capacity to transparent calls or connections and the remaining capacity to non-transparent calls or connections when the mobile communication network is temporarily unable to allocate more transmission capacity or the required amount of transmission capacity to the common traffic channel, and
• means for allocating requested capacity to non-transparent calls or connections later when capacity becomes available in the network.

A mobile communication network, comprising

• means for establishing one traffic channel of the mobile communication network for exclusive use of two or more simultaneous mobile communication network calls of a mobile station,
• means for sharing a capacity of said common traffic channel exclusively between said simultaneous calls,
• means for negotiating between the mobile station and a network about the channel capacity needed for each call or connection, and
• means for adjusting dynamically the capacity of the common traffic channel,
• means for establishing a separate subchannel for each call or each connection of each call in said traffic channel,
• means for establishing one radio link protocol link or link access control protocol link over the traffic channel between the mobile station and the interworking function,
• means for establishing a logical link for each call or each connection of each call inside said radio link protocol link or link access control protocol link, and
• means for transmitting the user data of each call or each connection of each call via the representative logical link by transmitting the data packets of a packet-switched call interleaved with the protocol frames of the radio link protocol or link access control protocol or encapsulated in the protocol frames.

A network element for a mobile communication network, comprising

• means for establishing one traffic channel of the mobile communication network for exclusive use of two or more simultaneous mobile communication network calls of a mobile station, said network calls comprising transparent calls and non-transparent calls
• means for sharing a capacity of said common traffic channel exclusively between said simultaneous calls,
• means for detecting that the mobile communication network is temporarily unable to allocate more transmission capacity or a required amount of transmission capacity to the traffic channel when a new call or connection is set up,
• means for allocating requested capacity to transparent calls or connections and the remaining capacity to non-transparent calls or connections when the mobile communication network is temporarily unable to allocate more transmission capacity or the required amount of transmission capacity to the common traffic channel, and
• means for allocating requested capacity to non-transparent calls or connections later when capacity becomes available in the network.

A network element for a mobile communication network, comprising

• means for establishing one traffic channel of the mobile communication network for exclusive use of two or more simultaneous mobile communication network calls of a mobile station,
• means for sharing a capacity of said common traffic channel exclusively between said simultaneous calls,
• means for adjusting dynamically the capacity of the common traffic channel according to a required channel capacity defined by means of negotiation between the mobile station and the network for each call or each connection of each call,
• means for establishing a separate subchannel for each call or each connection of each call in said traffic channel, means for establishing one radio link protocol link or link access control protocol link over the traffic channel between the mobile station and the interworking function,
• means for establishing a logical link for each call or each connection of each call inside said radio link protocol link or link access control protocol link, and
• means for transmitting the user data of each call or each connection of each call via the respective logical link by transmitting the data packets of a packet-switched call interleaved with the protocol frames of the radio link protocol or link access control protocol or encapsulated in the protocol frames.