US 10,945,236 B2Granted

Method for sensing resource for direct communication between terminals in wireless communication system and device therefor

AssigneeLG Electronics Inc.

InventorsHanbyul Seo, Seungmin Lee, Youngdae Lee, Jaewook Lee

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Abstract

The present application provides a method for transmitting or receiving a sidelink signal by a terminal in a wireless communication system. Specifically, the method for transmitting or receiving a sidelink signal comprises the steps of: transmitting a first sidelink signal during a transmission period by using a transmission resource selected among resource units included in a first transmission resource pool; monitoring resource units included in a second transmission resource pool; and transmitting a second sidelink signal during the transmission period by using a selected transmission resource on the basis of a result of the monitoring among the resource units included in the second transmission resource pool when a resource pool changes from the first transmission resource pool to the second transmission resource pool, wherein the second transmission resource pool is included in a reception resource pool corresponding to the first transmission resource pool.

Claims8

Dependent claims

A method of transmitting and receiving a sidelink signal by a User Equipment, UE, in a wireless communication system, the method comprising:

performing first sidelink signal transmission during a transmission period based on a transmitting resource selected from resource units included in a first transmission resource pool;
performing monitoring for resource units included in a second transmission resource pool;
and
based on a resource pool being switched from the first transmission resource pool to the second transmission resource pool, performing second sidelink signal transmission during the transmission period based on a transmission resource selected among the resource units included in the second transmission resource pool, based on a result of the performed monitoring,
wherein the second transmission resource pool is included in a reception resource pool related to the first transmission resource pool,
wherein pre-configured information is obtained for the performing of the monitoring based on the second transmission resource pool being included in the reception resource pool,
wherein the pre-configured information includes first information regarding resource allocation of other UE and second information regarding received power of demodulation reference signal (DMRS) for data of the other UE,
wherein the pre-configured information is used based on cyclic prefix (CP) length and subcarrier spacing (SCS) of the second transmission resource pool being same as CP length and SCS of the reception resource pool,
wherein a resource unit included in a third transmission resource pool is randomly selected for the performing of the second sidelink signal transmission, based on the CP length and the SCS of the second transmission resource pool being different from the CP length and the SCS of the reception resource pool, and
wherein the third transmission resource pool is a transmission resource pool different from the second transmission resource pool.

7 more elements

A User Equipment (UE) configured to operate in a wireless communication system, the UE comprising:

a wireless communication module;
and
a processor connected to the wireless communication module,
wherein the processor is configured to:
perform first sidelink signal transmission during a transmission period based on a transmitting resource selected from resource units included in a first transmission resource pool;
perform monitoring for resource units included in a second transmission resource pool, and
based on a resource pool being switched from the first transmission resource pool to the second transmission resource pool, perform second sidelink signal transmission during the transmission period based on a transmission resource selected among the resource units included in the second transmission resource pool, based on a result of the performed monitoring,
wherein the second transmission resource pool is included in a reception resource pool related to the first transmission resource pool,
wherein pre-configured information is obtained for the monitoring performance based on the second transmission resource pool being included in the reception resource pool,
wherein the pre-configured information includes first information regarding resource allocation of other UE and second information regarding received power of demodulation reference signal (DMRS) for data of the other UE,
wherein the pre-configured information is used based on cyclic prefix (CP) length and subcarrier spacing (SCS) of the second transmission resource pool being same as CP length and SCS of the reception resource pool,
wherein a resource unit included in a third transmission resource pool is randomly selected for the performing of the second sidelink signal transmission, based on the CP length and the SCS of the second transmission resource pool being different from the CP length and the SCS of the reception resource pool, and
wherein the third transmission resource pool is a transmission resource pool different from the second transmission resource pool.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/345,349Filed 26 Oct 2017 · us provisional application
Priority: 26 Oct 2016
Published: US 2019/0320415 A117 Oct 2019
Granted: 9 Mar 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04W 72/02
Local resource management: selection of wireless resources by user or terminal
H04W 72/0453
Based on the type of the allocated resource: resources in frequency domain, e.g. a carrier in FDMA
H04W 76/14
Connection setup: direct-mode setup
H04W 76/15
Connection setup: setup of multiple wireless link connections