US 11,082,874 B2 · Method for reporting measurement result by user equipment transceiving data by first radio access technology and second radio access technology, and device therefor

Abstract

The present disclosure relates to a communication technique for combining, with an IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and to a system therefor. The present disclosure may be applied to intelligent services (e.g., a smart home, a smart building, a smart city, a smart car or connected car, healthcare, digital education, retail business, security and safety-related service, etc.), based on a 5G communication technology and an IoT-related technology. A method for a user equipment in a first communication system according to the present invention comprises steps in which a user equipment in an inactive state: transmits a paging area update request message; checks whether or not a timer associated with a paging area update has expired; and transitions into an idle state if a response message for the paging area update request message has not been received until the timer has expired.

Claims8

Dependent claims

A method performed by a user equipment (UE) in a communication system, the method comprising:

receiving, from a first base station of a first system, system information including paging area information;
receiving, from the first base station, a message for a radio resource control (RRC) inactive mode of the first system, the message including a first timer and a second timer;
entering the RRC inactive mode of the first system based on the message;
transmitting, to the first base station, a paging area update request message based on the paging area information and the first timer;
and
entering a RRC idle mode in case that a response message of the paging area update request message has not been received until the second timer expires,
wherein the second timer is restarted in case that the response message is received before the second timer expires, and
wherein, in case that the UE enters a RRC inactive mode of a second system and a paging area has not changed, the first timer and the second timer are restarted.

5 more elements

A user equipment (UE) in a communication system, the UE comprising:

a transceiver;
and
a processor configured to:
control the transceiver to receive, from a first base station of a first system, system information including paging area information,
control the transceiver to receive, from the first base station, a message for a radio resource control (RRC) inactive mode of the first system, the message including a first timer and a second timer,
enter the RRC inactive mode of the first system based on the message,
control the transceiver to transmit, to the first base station, a paging area update request message based on the paging area information and the first timer, and
enter a RRC idle mode in case that a response message of the paging area update request message has not been received until the second timer expires,
wherein the second timer is restarted in case that the response message is received before the second timer expires, and
wherein, in case that the UE enters a RRC inactive mode of a second system and a paging area has not changed, the first timer and the second timer are restarted.

7 more elements

Dependencies are inferred from the claim text.

Method for reporting measurement result by user equipment transceiving data by first radio access technology and second radio access technology, and device therefor

Life of this patent

Method for reporting measurement result by user equipment transceiving data by first radio access technology and second radio access technology, and device therefor

Life of this patent

Abstract

Claims8