Patent ID: 11937324
Assignee: FUJITSU LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. A communication system, comprising:
a user equipment configured to:
in a radio resource control (RRC) state other than an RRC_connected state, determine, based on a threshold of available data amount configured by a network device via broadcast, that
the radio resource control (RRC) state other than an RRC_connected state is maintained and data is transmitted when available data amount is less than or equal to the threshold; and
data is transmitted after entering an RRC_connected state when available data amount is greater than the threshold; and

the user equipment being further configured to:
transmit, in the RRC state other than the RRC_connected state, data and a request message for entering the RRC_connected state to the network device only when it is determined to maintain the RRC state other than the RRC_connected state and to transmit data; and
enter the RRC_connected state and transmit data to the network device when it is determined to transmits data after entering the RRC_connected state, and

wherein in a case where the transmitter transmitted the data and the request message, the data transmitting apparatus is further configured to determine whether to maintain in the RRC state other than the RRC_connected state or enter the RRC_connected state according to a response message from the network device; and
the network device being configured to:
transmit via broadcast a threshold of available data amount to the user equipment, wherein the threshold is used for determining whether to maintain in a radio resource control (RRC) state other than an RRC_connected state and transmit data, or whether to transmit data after entering an RRC_connected state;
receive data and a request message for entering the RRC_connected state transmitted by the user equipment in the RRC state other than the RRC_connected state, or to receive data transmitted by the user equipment in the RRC active state,

the network device being further configured to transmit a response message to the user equipment, indicating that the user equipment maintains in the RRC state other than the RRC_connected or enters the RRC_connected state.