Method and apparatus for transmitting reference signal in device-to-device (D2D) communication
First Claim
1. A method for transmitting a reference signal in device-to-device (D2D) communication, the method comprising:
- determining, by a first user equipment, a target resource based on a predetermined function of at least one of first characteristic information of the first user equipment or second characteristic information of a second user equipment, wherein the target resource comprises at least one of a time domain resource, a frequency domain resource, a space domain resource, or a code domain resource, wherein determining the target resource comprises determining a characteristic parameter S, wherein S=f(X1) when only the first characteristic information is used to determine the target resource, wherein S=f(X2) when only the second characteristic information is used to determine the target resource, wherein S=f(X1, X2) when the first characteristic information and the second characteristic information are used to determine the target resource, wherein X1 is the first characteristic information, and wherein X2 is the second characteristic information; and
transmitting, by the first user equipment, a reference symbol to a second user equipment using the target resource, wherein the second user equipment performs D2D communication with the first user equipment.
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Abstract
A method and an apparatus for transmitting information in device-to-device (D2D) communication are provided, where the method includes determining, by a first user equipment, in a communication resource for D2D communication, a target resource used to bear a reference signal (RS), where the target resource is according to characteristic information used in selecting the target resource, and the characteristic information used in selecting the target resource includes at least one of the following two items: characteristic information used to uniquely identify the first user equipment, and characteristic information used to uniquely identify a second user equipment that performs D2D communication with the first user equipment; and transmitting, by the first user equipment, the RS to the second user equipment using the target resource.
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Citations
10 Claims
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1. A method for transmitting a reference signal in device-to-device (D2D) communication, the method comprising:
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determining, by a first user equipment, a target resource based on a predetermined function of at least one of first characteristic information of the first user equipment or second characteristic information of a second user equipment, wherein the target resource comprises at least one of a time domain resource, a frequency domain resource, a space domain resource, or a code domain resource, wherein determining the target resource comprises determining a characteristic parameter S, wherein S=f(X1) when only the first characteristic information is used to determine the target resource, wherein S=f(X2) when only the second characteristic information is used to determine the target resource, wherein S=f(X1, X2) when the first characteristic information and the second characteristic information are used to determine the target resource, wherein X1 is the first characteristic information, and wherein X2 is the second characteristic information; and transmitting, by the first user equipment, a reference symbol to a second user equipment using the target resource, wherein the second user equipment performs D2D communication with the first user equipment. - View Dependent Claims (2, 5, 6, 7)
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3. A first user equipment comprising:
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a transmitter; and a processor coupled to the transmitter and configured to; determine a target resource based on a predetermined function of at least one of first characteristic information of the first user device or second characteristic information of a second user device, wherein the target resource comprises at least one of a time domain resource, a frequency domain resource, a space domain resource, or a code domain resource; determine a characteristic parameter S, wherein S=f(X1) when only the first characteristic information is used to determine the target resource, wherein S=f(X2) when only the second characteristic information is used to determine the target resource, wherein S=f(X1, X2) when the first characteristic information and the second characteristic information are used to determine the target resource, and wherein X1 is the first characteristic information and X2 is the second characteristic information; and transmit, via the transmitter, a reference symbol to a second user equipment using the target resource, wherein the second user equipment performs D2D communication with the first user equipment. - View Dependent Claims (4, 8, 9, 10)
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Specification