Patent ID: 7539160

Claim:
An apparatus, comprising: an establishing unit configured to establish a real-time media session between user equipment and a second party via an access network and a packet switched core network based on an information element in a radio access bearer assignment message received from the core network to the access network, said information element indicating that the real-time media session requires a real-time access bearer of a type that can be shifted between a dedicated channel state and a common channel state; a moving unit configured to move a real-time access bearer assigned to the real-time media session between a dedicated channel state and a common channel state under control of the access network; an uplink connection buffer; a monitoring unit configured to monitor a status of the uplink connection buffer; an indicating unit configured to indicate the status of the uplink connection buffer to the radio access network at least during the dedicated channel state; and a sending unit configured to send a capacity request to the radio access network when there is data in the uplink communication buffer during the common channel state, to cause a transition to the dedicated channel state.