Mobile communication system, specific base station, and user terminal
First Claim
Patent Images
1. A mobile communication system, comprising:
- a specific cellular base station that is a base station that performs mobile communication with a user terminal in an unlicensed frequency band, whereinthe specific cellular base station is configured to perform communication with a general cellular base station via an inter-base station interface,a predetermined user terminal that supports a dual connectivity in which communication with the general cellular base station and communication with the specific cellular base station are performed simultaneously, whereinthe general cellular base station is a master base station that establishes an RRC connection with the user terminal in the dual connectivity,the specific cellular base station is a secondary base station that provides additional radio resources to the user terminal in the dual connectivity, andthe predetermined user terminal notifies capability information indicating that the predetermined user terminal supports the dual connectivity, to the general cellular base station or the specific cellular base station.
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Abstract
A LTE system comprises a eNB 200-2 that is a eNB shared by a plurality of network operators, and that performs LTE communication with a UE in a specific frequency band of which primary use is not allowed by the plurality of network operators. The specific eNB 200-2 performs backhaul communication with a eNB 200-1 provided in each mobile LTE network 1 of the plurality of network operators, via an inter-eNB interface 600.
12 Citations
6 Claims
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1. A mobile communication system, comprising:
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a specific cellular base station that is a base station that performs mobile communication with a user terminal in an unlicensed frequency band, wherein the specific cellular base station is configured to perform communication with a general cellular base station via an inter-base station interface, a predetermined user terminal that supports a dual connectivity in which communication with the general cellular base station and communication with the specific cellular base station are performed simultaneously, wherein the general cellular base station is a master base station that establishes an RRC connection with the user terminal in the dual connectivity, the specific cellular base station is a secondary base station that provides additional radio resources to the user terminal in the dual connectivity, and the predetermined user terminal notifies capability information indicating that the predetermined user terminal supports the dual connectivity, to the general cellular base station or the specific cellular base station. - View Dependent Claims (2, 3, 4)
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5. A user terminal, comprising:
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a controller configured to perform communication with a general cellular base station and a specific cellular base station by dual connectivity in which communication with the general cellular base station and communication with the specific cellular base station are performed simultaneously, the specific cellular base station performing communication with the user terminal in an unlicensed frequency band, the general cellular base station performing communication with the specific cellular base station via an inter base station interface, wherein in the dual connectivity, the general cellular base station is set as a master base station that establishes an RRC connection with the user terminal, and the specific cellular base station is set as a secondary base station that provides additional radio resources to the user terminal, and the controller is further configured to notify capability information indicating that the predetermined user terminal supports the dual connectivity, to the general cellular base station or the specific cellular base station. - View Dependent Claims (6)
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Specification