APPARATUS AND METHOD FOR TRANSMITTING DATA THROUGH DEVICE TO DEVICE COMMUNICATION

• US 20150327118A1
• Filed: 05/08/2015
• Published: 11/12/2015
• Est. Priority Date: 05/09/2014
• Status: Active Grant

• Current Assignee: Innovative Tech Lab Company Limited
• Original Assignee: Innovative Tech Lab Company Limited
• Inventors: YOON, Sung Jun
• Granted Patent: US 10,085,236 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0082 at predetermined intervals
• CPC Class Codes: H04W 28/0289 Congestion control load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

Exemplary embodiments provide a method and apparatus for transmitting data through a device-to-device (D2D) communication between user equipments (UEs), the method including: generating, at a first UE, first D2D data, the first D2D data corresponding to a transport block (TB) unit; and transmitting, from the first UE to a second UE, the first D2D data through at least one D2D communication resource, the at least one D2D communication resource being based on a sub-RPT (sub-resource pattern for transmission). An RPT defined in a D2D resource pool is configured based on the sub-RPT, and the sub-RPT indicates the at least one D2D communication resource for the transmission of the first D2D data among at least two D2D communication candidate resources.

Claims

1. A method of transmitting data through a device-to-device (D2D) communication between user equipments (UEs), the method comprising:

generating, at a first UE, first D2D data, the first D2D data corresponding to a transport block (TB) unit; and

transmitting, from the first UE to a second UE, the first D2D data through at least one D2D communication resource, the at least one D2D communication resource being based on a sub-RPT (sub-resource pattern for transmission),

wherein an RPT defined in a D2D resource pool is configured based on the sub-RPT, and

wherein the sub-RPT indicates the at least one D2D communication resource for the transmission of the first D2D data among at least two D2D communication candidate resources.

2. The method of claim 1, wherein:

the RPT indicates total D2D communication resources for transmitting D2D data among total D2D communication candidate resources;

the D2D data comprises the first D2D data;

the total D2D communication candidate resources correspond to a set of D2D communication candidate resources defined in the D2D resource pool and comprise the at least two D2D communication candidate resources; and

the total D2D communication resources correspond to a set of D2D communication resource defined in the D2D resource pool and comprise the at least one D2D communication resource.

3. The method of claim 1, wherein:

each of the at least two D2D communication candidate resources corresponds to one or two subframes; and

a number of the at least one D2D communication resource is └

L/2┘

or ┌

L/2┐

, where L is a number of the at least two D2D communication candidate resources.

4. The method of claim 1, wherein:

a number of the at least two D2D communication candidate resources is 4;

a number of the at least one D2D communication resource is 2;

the sub-RPT is one of a first sub-RPT, a second sub-RPT, a third sub-RPT, a fourth sub-RPT, a fifth sub-RPT, and a sixth sub-RPT; and

D2D communication resources indicated by the first sub-RPT, the second sub-RPT, the third sub-RPT, the fourth sub-RPT, the fifth sub-RPT, and the sixth sub-RPT are different from each other.

5. The method of claim 4, wherein the RPT is configured by grouping the sub-RPT and another sub-RPT identical to the sub-RPT or grouping the sub-RPT and another sub-RPT different from the sub-RPT.

6. The method of claim 1, wherein:

the first UE receives a second D2D data from the second UE through a D2D communication resource different from the at least one D2D communication resource associated with the first D2D data, the D2D communication resource through which the second D2D data is received being selected from among the at least two D2D communication candidate resources, and

the second D2D data corresponds to a transport block (TB) unit.

7. A first user equipment (UE) to transmit data through a device-to-device (D2D) communication between user equipments, the first UE comprising:

a radio frequency unit to transceive a wireless signal; and

a processor to process a data mapping to a resource,

wherein;

the processor is configured to generate first D2D data, the first D2D data corresponding to a transport block (TB) unit;

the radio frequency unit transmits, to a second UE, the first D2D data through at least one D2D communication resource, the at least one D2D communication resource being based on a sub-RPT (sub-resource pattern for transmission);

an RPT defined in a D2D resource pool is configured based on the sub-RPT; and

the sub-RPT indicates the at least one D2D communication resource for the transmission of the first D2D data among at least two D2D communication candidate resources.

8. The first UE of claim 7, wherein:

the RPT indicates total D2D communication resources for transmitting D2D data among total D2D communication candidate resources;

the D2D data comprises the first D2D data;

the total D2D communication candidate resources correspond to a set of D2D communication candidate resources defined in the D2D resource pool and comprise the at least two D2D communication candidate resources; and

the total D2D communication resources correspond to a set of D2D communication resource defined in the D2D resource pool and comprise the at least one D2D communication resource.

9. The first UE of claim 7, wherein:

each of the at least two D2D communication candidate resources corresponds to one or two subframes; and

a number of the at least one D2D communication resource is └

L/2┘

or ┌

L/2┐

, where L is a number of the at least two D2D communication candidate resources.

10. The first UE of claim 7, wherein:

a number of the at least two D2D communication candidate resources is 4;

a number of the at least one D2D communication resource is 2;

the sub-RPT is one of a first sub-RPT, a second sub-RPT, a third sub-RPT, a fourth sub-RPT, a fifth sub-RPT, and a sixth sub-RPT; and

D2D communication resources indicated by the first sub-RPT, the second sub-RPT, the third sub-RPT, the fourth sub-RPT, the fifth sub-RPT, and the sixth sub-RPT are different from each other.

11. The first UE of claim 10, wherein the RPT is configured by grouping the sub-RPT and another sub-RPT identical to the sub-RPT or grouping the sub-RPT and another sub-RPT different from the sub-RPT.

12. The first UE of claim 7, wherein:

the radio frequency unit receives a second D2D data from the second UE through a D2D communication resource different from the at least one D2D communication resource associated with the first D2D data, the D2D communication resource through which the second D2D data is received being selected from among the at least two D2D communication candidate resources, and

the second D2D data corresponds to a transport block (TB) unit.