Patent ID: 11968584
Assignee: KYOCERA CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 1:
2. A wireless relay apparatus connected to an upper apparatus via a backhaul link, the wireless relay apparatus comprising:
a receiver configured to receive, from the upper apparatus, a failure notification transmitted in response to failure occurring in the backhaul link of the upper apparatus and the upper apparatus failing to recover the backhaul link; and
a controller configured to, after receiving the failure notification from the upper apparatus, in response to a Radio Resource Control (RRC) re-establishment process to re-establish the backhaul link of the wireless relay apparatus not succeeding, transition a user equipment function of the wireless relay apparatus to an RRC idle state, wherein
the controller is configured to after the transitioning to the RRC idle state, in response to system information broadcasted by the upper apparatus indicating that the upper apparatus supports the wireless relay apparatus being received from the upper apparatus, consider a cell of the upper apparatus as accessible as a serving cell of the wireless relay apparatus.