Handover control method, relay apparatus, and donor apparatus
AssigneeKYOCERA Corporation
InventorMasato Fujishiro
Life of this patent
Estimating the term…
Abstract
A first donor apparatus 200S transmits to the UE 100 a first handover command indicating a handover of a UE 100 (lower apparatus) lower than an IAB node 300. The IAB node 300 receives the first handover command addressed to the UE 100, and then suspends transfer of the first handover command to the UE 100 until a handover of the IAB node 300 is performed.
Claims7
A handover control method for performing a handover of a relay apparatus from a first donor apparatus or an apparatus lower than the first donor apparatus to a second donor apparatus or an apparatus lower than the second donor apparatus, the handover control method comprising:
- transmitting, by the first donor apparatus, a first RRC message indicating a handover of a lower apparatus lower than the relay apparatus to the lower apparatus;
- receiving, by the relay apparatus, the first RRC message, and then suspending transfer of the first RRC message to the lower apparatus until the handover of the relay apparatus is performed;
- and
- by the relay apparatus, in response to performance of the handover of the relay apparatus, transferring to the lower apparatus the first RRC message of which the transfer is suspended.
A relay apparatus for performing a handover from a first donor apparatus or an apparatus lower than the first donor apparatus to a second donor apparatus or an apparatus lower than the second donor apparatus, the relay apparatus comprising:
- at least one processor configured to execute:
- receiving a first RRC message transmitted from the first donor apparatus and indicating a handover of a lower apparatus lower than the relay apparatus;
- receiving the first RRC message and then suspending transfer of the first RRC message to the lower apparatus until the handover of the relay apparatus is performed;
- and
- transferring to the lower apparatus the first RRC message of which the transfer is suspended in response to performance of the handover of the relay apparatus.
A first donor apparatus for a handover of a relay apparatus from the first donor apparatus or an apparatus lower than the first donor apparatus to a second donor apparatus or an apparatus lower than the second donor apparatus, the first donor apparatus comprising:
- at least one processor configured to execute:
- transmitting to the relay apparatus a first message for suspending an operation of transfer from the relay apparatus to a lower apparatus lower than the relay apparatus until the handover of the relay apparatus is performed;
- transmitting to the lower apparatus a first RRC message indicating a handover of the lower apparatus;
- and
- transmitting to the relay apparatus a second RRC message indicating a handover of the relay apparatus.
Dependencies are inferred from the claim text.