Method and device for performing measurement in wireless communication system
First Claim
Patent Images
1. A method for performing a device-to-device (D2D) communication by a user equipment (UE) in a wireless communication system, the method comprising:
- receiving allocation of a resource region for the D2D communication;
performing a first measurement on the resource region for the D2D communication;
determining whether the resource region has a discovery signal based on a result of the first measurement;
performing a second measurement on the resource region when the result of the first measurement indicates the resource region has the discovery signal; and
adjusting discovery signal transmission periodicity of the UE based on a result of the second measurement,wherein, based on the result of the second measurement being smaller than 10% block error rate (BLER), the discovery signal transmission periodicity of the UE is set to 2 ms,wherein, based on the result of the second measurement being in a range of 10% to 20% BLER, the discovery signal transmission periodicity of the UE is set to 4 ms,wherein, based on the result of the second measurement being in a range of 20% to 30% BLER, the discovery signal transmission periodicity of the UE is set to 8 ms, andwherein, based on the result of the second measurement exceeding 30% BLER, a discovery signal transmission is stopped and the first measurement is performed again until the result of the second measurement is reduced below 10% BLER.
1 Assignment
0 Petitions
Accused Products
Abstract
A method by which a terminal measures device-to-device (D2D) resources in a wireless communication system, according to one embodiment of the present invention comprises the steps of: receiving allocated resources for D2D transmission and reception; performing a first measurement on resource regions for the D2D transmission and reception; determining resource regions in which a discovery signal exists, which are estimated on the basis of the first measurement result; and performing a second measurement on the estimated resource regions.
27 Citations
14 Claims
-
1. A method for performing a device-to-device (D2D) communication by a user equipment (UE) in a wireless communication system, the method comprising:
-
receiving allocation of a resource region for the D2D communication; performing a first measurement on the resource region for the D2D communication; determining whether the resource region has a discovery signal based on a result of the first measurement; performing a second measurement on the resource region when the result of the first measurement indicates the resource region has the discovery signal; and adjusting discovery signal transmission periodicity of the UE based on a result of the second measurement, wherein, based on the result of the second measurement being smaller than 10% block error rate (BLER), the discovery signal transmission periodicity of the UE is set to 2 ms, wherein, based on the result of the second measurement being in a range of 10% to 20% BLER, the discovery signal transmission periodicity of the UE is set to 4 ms, wherein, based on the result of the second measurement being in a range of 20% to 30% BLER, the discovery signal transmission periodicity of the UE is set to 8 ms, and wherein, based on the result of the second measurement exceeding 30% BLER, a discovery signal transmission is stopped and the first measurement is performed again until the result of the second measurement is reduced below 10% BLER. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A user equipment (UE) for performing a device-to-device (D2D) communication in a wireless communication system, the UE comprising:
-
a receiver; and a processor configured to; receive, via the receiver, allocation of a resource region for the D2D communication, perform a first measurement on the resource region for the D2D communication, determine whether the resource region has a discovery signal based on a result of the first measurement, perform a second measurement on the resource region when the result of the first measurement indicates the resource region has the discovery signal, and adjust discovery signal transmission periodicity of the UE based on a result of the second measurement, wherein, based on the result of the second measurement being smaller than 10% block error rate (BLER), the discovery signal transmission periodicity of the UE is set to 2 ms, wherein, based on the result of the second measurement being in a range of 10% to 20% BLER, the discovery signal transmission periodicity of the UE is set to 4 ms, wherein, based on the result of the second measurement being in a range of 20% to 30% BLER, the discovery signal transmission periodicity of the UE is set to 8 ms, and wherein, based on the result of the second measurement exceeding 30% BLER, a discovery signal transmission is stopped and the first measurement is performed again until the result of the second measurement is reduced below 10% BLER. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
Specification