Method and apparatus for transmitting synchronization signal
First Claim
1. A method for transmitting a synchronization signal, comprising:
- determining, by a first terminal, a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication; and
transmitting, by the first terminal, a synchronization signal according to the determined D2D type.
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Abstract
Embodiments of the present invention disclose a method and an apparatus for transmitting a synchronization signal. The method of the present invention includes: determining, by a first terminal, a D2D type, where the D2D type includes D2D discovery and D2D communication; and transmitting, by the first terminal, a synchronization signal according to the determined D2D type. Therefore, synchronization signals transmitted by terminals of different D2D types do not affect each other, avoiding that a second terminal detects and receives a synchronization signal that does not correspond to a D2D type of the second terminal and ensuring that user direct-connection communication can be performed correctly and efficiently.
26 Citations
22 Claims
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1. A method for transmitting a synchronization signal, comprising:
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determining, by a first terminal, a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication; and transmitting, by the first terminal, a synchronization signal according to the determined D2D type. - View Dependent Claims (2, 3, 4, 5)
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6. A method for receiving a synchronization signal, comprising:
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determining, by a second terminal, a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication; and detecting and receiving, by the second terminal, a synchronization signal according to the determined D2D type. - View Dependent Claims (7, 8, 9, 10)
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11. An apparatus for transmitting a synchronization signal, comprising:
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a processor, configured to determine a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication; and a transmitter, configured to transmit a synchronization signal according to the D2D type determined by the processing module. - View Dependent Claims (12, 13, 14, 15)
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16. An apparatus for receiving a synchronization signal, comprising:
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a processor, configured to determine a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication; and a receiver, configured to detect and receive a synchronization signal according to the D2D type determined by the processing module. - View Dependent Claims (17, 18, 19, 20)
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21. A non-transitory computer readable storage medium, comprising computer program codes which when executed by a computer processor cause the compute processor to execute the steps of:
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determining a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication; and instructing a transmitter to transmit, a physical D2D synchronization channel (PD2DSCH) if the first terminal is of type D2D communication, not transmitting a PD2DSCH if the first terminal is of type D2D discovery.
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22. A non-transitory computer readable storage medium, comprising computer program codes which when executed by a computer processor cause the compute processor to execute the steps of:
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determining a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication; and instructing a receiver to detect and receive, a physical D2D synchronization channel (PD2DSCH) if the second terminal is of type D2D communication;
detecting no PD2DSCH if the second terminal of type D2D discovery.
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Specification