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1. A terminal device comprising: at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the terminal device at least to: establish a first radio resource connection with a Radio Access Network (RAN) node, the first radio resource connection having a first Radio Network Temporary Identifier and being associated with a first subscription identity used by the terminal device to register in a network; perform a radio resource connection setup procedure for establishing a second radio resource connection, the second radio resource ALLOWANCE connection being associated with a second subscription identity used by the terminal device to register in the network; indicate to the RAN node that the terminal device has an existing radio resource connection with the RAN node; receive a second Radio Network Temporary Identifier associated with the second radio resource connection and an additional Radio Network Temporary Identifier common to the first and second radio resource connections; and use a common Radio Network Temporary Identifier for communication with the RAN node wherein the at least one processor and the computer program code are further configured to: indicate to the RAN node that the terminal device is capable to share Medium Access Control layer across the first and second radio resource connections; receive from the RAN node an indication that the Medium Access Control layer is shared between the first and second radio resource connections: and report buffer status information to the RAN node separately for the first and second radio resource connections.
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