MOBILE COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, AND D2D TERMINAL
First Claim
1. A mobile communication system that supports cellular communication in which a data path passes through a core network and D2D communication that is direct device-to-device communication in which the data path does not pass through the core network, the system comprisinga communication apparatus configured to assign a radio resource to a D2D terminal that performs the D2D communication, whereinthe communication apparatus performs assignment determination as to whether a dedicated radio resource not shared with the cellular communication is assigned to the D2D terminal or a shared radio resource shared with the cellular communication is assigned to the D2D terminal.
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Accused Products
Abstract
A mobile communication system supports cellular communication in which a data path passes through a core network and D2D communication that is direct device-to-device communication in which the data path does not pass through the core network. The system comprises a communication apparatus that assigns a radio resource to a D2D terminal that performs the D2D communication, wherein the communication apparatus performs assignment determination as to whether a dedicated radio resource not shared with the cellular communication is assigned to the D2D terminal or a shared radio resource shared with the cellular communication is assigned to the D2D terminal.
46 Citations
19 Claims
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1. A mobile communication system that supports cellular communication in which a data path passes through a core network and D2D communication that is direct device-to-device communication in which the data path does not pass through the core network, the system comprising
a communication apparatus configured to assign a radio resource to a D2D terminal that performs the D2D communication, wherein the communication apparatus performs assignment determination as to whether a dedicated radio resource not shared with the cellular communication is assigned to the D2D terminal or a shared radio resource shared with the cellular communication is assigned to the D2D terminal.
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7. A communication apparatus that assigns a radio resource to a D2D terminal that performs D2D communication in a mobile communication system that supports cellular communication in which a data path passes through a core network and the D2D communication that is direct device-to-device communication in which the data path does not pass through the core network, comprising
a controller configured to perform assignment determination as to whether a dedicated radio resource not shared with the cellular communication is assigned to the D2D terminal or a shared radio resource shared with the cellular communication is assigned to the D2D terminal.
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8. A mobile communication system that supports cellular communication in which a data path passes through a core network and D2D communication that is direct device-to-device communication in which the data path does not pass through the core network, the system comprising:
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a base station; a cellular terminal configured to perform the cellular communication in a cell of the base station; and a D2D terminal configured to perform the D2D communication in the cell by using a shared radio resource shared with the cellular communication, wherein at least one communication apparatus among the base station, the cellular terminal, and the D2D terminal performs null steering so as to suppress an influence of interference between the cellular communication and the D2D communication. - View Dependent Claims (9, 10, 11)
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12. A communication apparatus used in a mobile communication system that supports cellular communication in which a data path passes through a core network and D2D communication that is direct device-to-device communication in which the data path does not pass through the core network, the apparatus comprising
a controller configured to perform null steering so as to suppress an influence of interference between the cellular communication and the D2D communication, wherein the communication apparatus is one of a base station, a cellular terminal that performs the cellular communication, and a D2D terminal that performs the D2D communication, and the D2D communication is performed by using a shared radio resource shared with the cellular communication.
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13. A mobile communication system that supports cellular communication in which a data path passes through a core network and D2D communication that is direct device-to-device communication in which the data path does not pass through the core network, the system comprising:
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a communication apparatus; a cellular terminal that performs the cellular communication; and a D2D terminal that performs the D2D communication by using a shared radio resource shared with the cellular communication, wherein the D2D terminal notifies the communication apparatus of information on a D2D communication pathloss that is a pathloss between the D2D terminal and another D2D terminal that is a communication partner of the D2D terminal, and the communication apparatus controls transmission power of at least one of the cellular terminal, the communication apparatus, and the D2D terminal, on the basis of the information on the D2D communication pathloss. - View Dependent Claims (14, 15, 16, 17)
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18. A D2D terminal capable of performing D2D communication by using a shared radio resource shared with cellular communication in a mobile communication system that supports the cellular communication in which a data path passes through a core network and the D2D communication that is direct device-to-device communication in which the data path does not pass through the core network, the terminal comprising:
a controller configured to notify a communication apparatus of information on a D2D communication pathloss that is a pathloss between the D2D terminal and another D2D terminal that is a communication partner of the D2D terminal.
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19. A communication apparatus used in a mobile communication system that supports cellular communication in which a data path passes through a core network and D2D communication that is direct device-to-device communication in which the data path does not pass through the core network, the apparatus comprising
a controller configured to control transmission power of at least one of a cellular terminal, the communication apparatus, and the D2D terminal, on the basis of information on a D2D communication pathloss that is a pathloss between the D2D terminal and another D2D terminal that is a communication partner of the D2D terminal.
Specification