METHOD OF TRANSCEIVING FOR DEVICE TO DEVICE COMMUNICATION
First Claim
1. A method of operating a terminal that receives data or control information from a partner terminal through direct communication between terminals using a subframe for D2D communication among subframes, the subframes being classified into a subframe for cellular communication and the subframe for D2D communication, a D2D communication method comprising:
- receiving state information of the partner terminal from a base station; and
determining whether the data or the control information is received from the partner terminal in at least some symbols of the subframe for D2D communication based on the state information.
1 Assignment
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Accused Products
Abstract
A method of transmitting and receiving a specific reference signal in single point transmission and multi-point transmission is disclosed. The specific reference signal transmission method includes determining specific reference signal transmission resources for at least one terminal targeted for transmission, and transmitting the specific reference signal using the determined transmission resources and notifying of information for a layer used by the terminal. The specific reference signal transmission method includes determining specific reference signal reception resources, receiving the information for the layer used by the terminal from a serving cell base station, and receiving the specific reference signal using the information for determined transmission resources and the layer. Therefore, the terminal can recognize a position and a sequence of the specific reference signal. Particularly, in the case of multi-user MIMO and cooperative scheduling, signal interference can be suppressed or removed using the specific reference signal of another terminal.
43 Citations
18 Claims
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1. A method of operating a terminal that receives data or control information from a partner terminal through direct communication between terminals using a subframe for D2D communication among subframes, the subframes being classified into a subframe for cellular communication and the subframe for D2D communication, a D2D communication method comprising:
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receiving state information of the partner terminal from a base station; and determining whether the data or the control information is received from the partner terminal in at least some symbols of the subframe for D2D communication based on the state information. - View Dependent Claims (2, 3, 4, 5)
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6. A method of operating a terminal that receives data or control information from a partner terminal through direct communication between terminals using a subframe for D2D communication among subframes, the subframes being classified into a subframe for cellular communication and the subframe for D2D communication, a D2D to communication method comprising:
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receiving information indicating whether at least some symbols of the subframe for D2D communication are used from a base station; and determining whether the data or the control information is received from the partner terminal in at least some symbols of the subframe for D2D communication based on the information indicating whether at least some symbols of the subframe for D2D communication are used. - View Dependent Claims (7, 8, 9, 10)
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11. A method of transmitting control information in a terminal performing device-to-device communication, the method comprising:
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mapping a DM-RS (Demodulation RS) to subframe resources in which device-to-device communication (D2D) data is transmitted; mapping the control information to the subframe resources; mapping the device-to-device communication data to resources other than the resources to which the DM-RS and the control information are mapped among the subframe resources; and transmitting the subframe to a partner terminal of device-to-device communication. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification