Method and device for transmitting and receiving discovery signal of device-to-device communication terminal in wireless communication system
AssigneeLG Electronics Inc.
InventorsHyukjin Chae, Hanbyul Seo
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Abstract
An embodiment of the present invention relates to a method by which a terminal transmits a discovery signal in a wireless communication system, comprising the steps of: determining a subframe pool for data transmission; determining a subframe set for transmitting a D2D signal by applying a time resource pattern (TRP) bitmap to the subframe pool for the data transmission; and transmitting a discovery message in a subframe corresponding to the n number of bits of the TRP bitmap.
Claims12
A method of transmitting a discovery signal, by a user equipment (UE) in a wireless communication system, the method comprising:
- determining a subframe set for transmitting a discovery signal indicated by a time resource pattern (TRP) bitmap in a resource pool for transmitting device-to-device (D2D) data;
- determining a subframe for transmitting the discovery signal based on a length of the discovery signal among a first subframe included in the subframe set and a second subframe included in a discovery resource pool allocated from a base station,
- wherein the first subframe is n subframes indicated by n bits among bits included in the TRP bitmap, where n is a positive integer;
- and
- transmitting the discovery signal in the determined subframe,
- wherein when the length of the discovery signal is greater than a predetermined length, the subframe for transmitting the discovery signal is determined as the first subframe.
A method of receiving a discovery signal, which is received by a user equipment (UE) in a wireless communication system, the method comprising:
- determining a subframe set for receiving a discovery signal indicated by a time resource pattern (TRP) bitmap in a resource pool for transmitting device-to-device (D2D) data;
- and
- receiving a discovery signal in a first subframe included in the subframe set or in a second subframe included in a discovery resource pool allocated from a base station,
- wherein when the discovery signal is received in the first subframe, the discovery signal has a length greater than a predetermined length, and
- wherein the first subframe in which the discovery signal is received is n subframes indicated by n bits among bits included in the TRP bitmap, where n is a positive integer.
Dependencies are inferred from the claim text.