Random access procedure supporting nb-iot
AssigneeLG Electronics Inc.
InventorsSeungjune YI, Sunyoung LEE, Jongwoo HONG
Life of this patent
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Abstract
A method for a user equipment (UE) performing a random access to a network supporting NB-IoT (Narrow Band Internet of Things) is disclosed. The UE, operating on a first carrier, can move to a second carrier from the first carrier, and perform a random access procedure on the second carrier. The UE is configured to return to the first carrier, when the random access procedure on the second carrier is not successful, and when the random access procedure is a contention based random access procedure. Here, the first carrier is an anchor carrier if the UE is in RRC_IDLE state, and the first carrier is a configured carrier if the UE is in RRC_CONNECTED state.
Claims14
A method for a user equipment (UE) performing a random access to a network, the method comprising:
- operating on a first carrier;
- moving to a second carrier from the first carrier;
- performing a random access procedure on the second carrier;
- and
- returning to the first carrier, when the random access procedure on the second carrier is not successful, and when the random access procedure is a contention based random access procedure,
- wherein the first carrier is an anchor carrier if the UE is in RRC_IDLE state, and
- wherein the first carrier is a configured carrier if the UE is in RRC_CONNECTED state.
A user equipment (UE) performing a random access to a network, the UE comprising:
- a processor configured to operate on a first carrier, to move to a second carrier from the first carrier, and to perform a random access procedure on the second carrier;
- and
- a transceiver connected to the processor and configured to transmit and receive signals,
- wherein the processor is further configured to return to the first carrier, when the random access procedure on the second carrier is not successful, and when the random access procedure is a contention based random access procedure,
- wherein the first carrier is an anchor carrier if the UE is in RRC_IDLE state, and
- wherein the first carrier is a configured carrier if the UE is in RRC_CONNECTED state.
Dependencies are inferred from the claim text.