Base station apparatus, mobile station apparatus, radio communication system, communication control method of base station apparatus, and communication control method of mobile station apparatus
First Claim
1. A base station apparatus comprising a processor, wherein the processor executes a process comprising:
- obtaining information indicating a radio status of each mobile station apparatus relevant to first communication in which radio communication is performed between the mobile station apparatuses via the base station apparatus, and second communication in which radio communication is directly performed between the mobile station apparatuses without via the base station apparatus; and
notifying, based on the obtained information, the mobile station apparatuses that perform the second communication of control information for controlling the second communication, the control information for controlling the second communication being information relevant to switching of transmission power control methods, the mobile station apparatus deciding transmission power by taking a fixed value or transmission power by taking a pass loss, based on the information relevant to the switching.
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Accused Products
Abstract
A base station apparatus includes a processor. The processor executes a process including obtaining information indicating a radio status of each mobile station apparatus relevant to first communication in which radio communication is performed between the mobile station apparatuses via the base station apparatus, and second communication in which radio communication is directly performed between the mobile station apparatuses without via the base station apparatus; and notifying, based on the obtained information, the mobile station apparatuses that perform the second communication of control information for controlling the second communication.
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Citations
14 Claims
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1. A base station apparatus comprising a processor, wherein the processor executes a process comprising:
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obtaining information indicating a radio status of each mobile station apparatus relevant to first communication in which radio communication is performed between the mobile station apparatuses via the base station apparatus, and second communication in which radio communication is directly performed between the mobile station apparatuses without via the base station apparatus; and notifying, based on the obtained information, the mobile station apparatuses that perform the second communication of control information for controlling the second communication, the control information for controlling the second communication being information relevant to switching of transmission power control methods, the mobile station apparatus deciding transmission power by taking a fixed value or transmission power by taking a pass loss, based on the information relevant to the switching. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mobile station apparatus comprising a processor, wherein the processor executes a process comprising:
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receiving control information for controlling second communication from a base station apparatus, the control information being based on information indicating a radio status of each mobile station apparatus relevant to first communication in which radio communication is performed between the mobile station apparatuses via the base station apparatus, and the second communication in which radio communication is directly performed between the mobile station apparatuses without via the base station apparatus, the control information for controlling the second communication being information relevant to switching of transmission power control methods, the mobile station apparatus deciding transmission power by taking a fixed value or transmission power by taking a pass loss, based on the information relevant to the switching; and controlling a radio output in the second communication, upon reception of the control information. - View Dependent Claims (8, 9)
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10. A radio communication system comprising a mobile station apparatus and a base station apparatus that performs radio communication with the mobile station apparatus, the radio communication system performing first communication or second communication, radio communication in the first communication being performed between the mobile station apparatuses via the base station apparatus, radio communication in the second communication being directly performed between the mobile station apparatuses without via the base station apparatus, wherein
the base station apparatus includes a control unit that notifies the mobile station apparatuses that perform the second communication of control information for controlling the second communication, the control information for controlling the second communication is information relevant to switching of transmission power control methods, and the mobile station apparatus decides transmission power by taking a fixed value or transmission power by taking a pass loss, based on the information relevant to the switching.
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13. A communication control method of a base station apparatus, the communication control method comprising:
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obtaining information indicating a radio status of each of mobile station apparatuses relevant to first communication in which radio communication is performed between the mobile station apparatuses via the base station apparatus, and the second communication in which radio communication is directly performed between the mobile station apparatuses without via the base station apparatus; and notifying the mobile station apparatus that performs second communication of control information for controlling the second communication, based on the obtained information, the control information for controlling the second communication being information relevant to switching of transmission power control methods, the mobile station apparatus deciding transmission power by taking a fixed value or transmission power by taking a pass loss, based on the information relevant to the switching.
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14. A communication control method of a mobile station apparatus, the communication control method comprising:
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receiving control information for controlling second communication from a base station apparatus, the control information being based on information indicating a radio status of each of the mobile station apparatuses relevant to first communication in which radio communication is performed between the mobile station apparatuses via the base station apparatus, and the second communication in which radio communication is directly performed between the mobile station apparatuses without via the base station apparatus, the control information for controlling the second communication being information relevant to switching of transmission power control methods, the mobile station apparatus deciding transmission power by taking a fixed value or transmission power by taking a pass loss, based on the information relevant to the switching; and controlling a radio output in the second communication, upon reception of the control information.
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Specification