Radio terminal, radio station, and method therefor
AssigneeNEC Corporation
InventorsHisashi FUTAKI, Sadafuku Hayashi
Life of this patent
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Abstract
A radio terminal (1) is configured to transmit data using a first communication architecture type, in response to an occurrence of a request for specific data transmission when the radio terminal (1) has already been configured by a network (3) to use a second communication architecture type. This contributes to, for example, when the radio terminal has already been configured by the network to use the second communication architecture type that involves suspension and resumption of an RRC connection, facilitating effectively performing communication according to the first communication architecture type that involves data transmission over a control plane.
Claims7
A radio terminal comprising:
- a memory;
- and
- at least one processor coupled to the memory, wherein
- the at least one processor is configured to support a plurality of communication architecture types,
- the plurality of communication architecture types include (a) a first communication architecture type in which a data packet is transmitted via a control plane and (b) a second communication architecture type in which a data packet is transmitted via a user plane and that involves suspension and resumption of a Radio Resource Control (RRC) connection,
- the suspension of the RRC connection includes releasing a RRC connection while the radio terminal retains an Access Stratum (AS) context,
- the resumption of the RRC connection is performed when a state of the radio terminal is transitioned from an RRC idle state to an RRC connected state, and
- the at least one processor is further configured to perform the resumption of the RRC connection, if the radio terminal attempts to send data using the first communication architecture type while the radio terminal is executing the suspension for the second communication architecture type.
Dependencies are inferred from the claim text.