METHOD AND APPARATUS FOR TRANSRECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM
First Claim
1. A method for transmitting and receiving a device-to-device (D2D) signal by a first device in a wireless communication system, the method comprising:
- receiving a discovery signal from a second device;
determining a number of antenna ports related to transmission of the discovery signal; and
decoding the discovery signal based on the number of antenna ports,wherein an initial value of a sequence constituting a Demodulation Reference Signal (DMRS) is determined by a parameter related to a cell ID,wherein a value of the parameter related to the cell ID is selected from a range which is different from a range of a physical cell ID and a range of virtual cell ID.
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Abstract
One embodiment of the present invention relates to a method for device-to-device transreceiving a signal by a first device in a wireless communication system, wherein the method for transreceiving a signal comprises the steps of: receiving from a second device a discovery signal; determining the number of antenna ports associated with the transmission of the discovery signal; and decoding the discovery signal based on the number of antenna ports, wherein an initial value of a sequence constituting the DMRS is determined by a parameter related to a cell ID, and the value of the parameter related to the cell ID is selected from a range of values differing from values available to a physical cell ID and a virtual cell ID.
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Citations
12 Claims
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1. A method for transmitting and receiving a device-to-device (D2D) signal by a first device in a wireless communication system, the method comprising:
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receiving a discovery signal from a second device; determining a number of antenna ports related to transmission of the discovery signal; and decoding the discovery signal based on the number of antenna ports, wherein an initial value of a sequence constituting a Demodulation Reference Signal (DMRS) is determined by a parameter related to a cell ID, wherein a value of the parameter related to the cell ID is selected from a range which is different from a range of a physical cell ID and a range of virtual cell ID. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A first device for performing device-to-device (D2D) communication in a wireless communication system, the first device comprising:
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a reception module; and a processor, wherein the processor is configured to receive a discovery signal from a second device, determine a number of antenna ports related to transmission of the discovery signal, and decode the discovery signal based on the number of antenna ports, wherein the number of antenna ports is indicated through one of a sequence shift pattern related to an initial value of a sequence constituting a Demodulation Reference Signal (DMRS) associated with the discovery signal and a predetermined resource region associated with the discovery signal.
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Specification