METHOD FOR TRANSMITTING AND RECEIVING RESOURCE ALLOCATION INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

• US 20140161085A1
• Filed: 07/19/2012
• Published: 06/12/2014
• Est. Priority Date: 07/19/2011
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Hakseong, Seo, Hanbyul
• Application Number:
  US14/233,671
• Publication Number:
  US 20140161085A1
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

Disclosed are a method for transmitting and receiving resource allocation information in a wireless communication system and an apparatus therefor. The method for a terminal to receive resource allocation information in a wireless communication system comprises the steps of: receiving, from a base station, an enhanced-physical downlink control channel (E-PDCCH) comprising a downlink (DL) grant from a particular resource domain; decoding a resource allocation (RA) field, which is in DCI format, in the received E-PDCCH; and determining, on the basis of the decoded RA field, whether a physical downlink shared channel (PDSCH) is transmitted from the domains in the particular resource domain from which the DL grant domain is excluded, or, from the domains in the particular resource domain in which an UL grant domain exists and from which the DL grant domain and the UL grant domain are excluded.

Claims

1. A method of receiving resource allocation information by a user equipment in a wireless communication system, the method comprising:

receiving E-PDCCH (enhanced-physical downlink control channel) including a downlink (DL) grant on a specific resource region from a base station;

decoding a resource allocation (RA) field of a DCI format of the received E-PDCCH; and

determining whether PDSCH (physical downlink shared channel) is transmitted on the rest of the specific resource region except a DL grant region or the rest of the specific resource region except the DL grant region and a UL grant region existing in the specific resource region depending on a result of the decoded RA field.

2. The method of claim 1, wherein the specific resource region comprises a region configured by RBG (resource block group) or RB (resource block) unit.

3. The method of claim 1, wherein the DL grant is received by a unit of one selected from the group consisting of RBG (Resource Block Group), RB (Resource Block), slot, symbol, RE (Resource Element), eREG (enhanced Resource ElementG), eCCE (enhanced Control Channel Element) and combination thereof.

4. The method of claim 1, wherein a location of the UL grant comprises a pre-designated location or is determined by the DL grant.

5. The method of claim 4, wherein if the location of the UL grant is determined by the DL grant, the location of the UL grant is determined based on one selected from the group consisting of indexes of RBG (Resource Block Group), RB (Resource Block), slot, symbol, RE (Resource Element), eREG (enhanced Resource ElementG) and eCCE (enhanced Control Channel Element), on which the DL grant is received.

6. The method of claim 4, wherein the UL grant is located by one of RBG (Resource Block Group) unit, RB (Resource Block) unit, slot unit, symbol unit, RE (Resource Element) unit, eREG (enhanced Resource ElementG) unit, eCCE (enhanced Control Channel Element) unit, subcarrier unit and unit configured by combination thereof.

7. The method of claim 1, wherein the E-PDCCH is received with the PDSCH by having FDM (frequency division multiplexing) applied thereto or by having a hybrid the FDM and TDM (time division multiplexing applied thereto.

8. A method of transmitting resource allocation information by a base station in a wireless communication system, the method comprising:

transmitting E-PDCCH (enhanced-physical downlink control channel) including a downlink (DL) grant on a specific resource region to a user equipment,

wherein the E-PDCCH includes a resource allocation (RA) field of a DCI format,

wherein a first indication value of the RA field indicates that PDSCH (physical downlink shared channel) is transmitted on the rest of the specific resource region except a DL grant region and

wherein a second indication value of the RA field indicates that the rest of the specific resource region except the DL grant region and a UL grant region existing in the specific resource region.

9. The method of claim 8, wherein the specific resource region comprises a region configured by RBG (resource block group) or RB (resource block) unit.

10. The method of claim 8, wherein the DL grant is transmitted by a unit of one of RBG (Resource Block Group), RB (Resource Block), slot, symbol, RE (Resource Element), eREG (enhanced Resource ElementG), eCCE (enhanced Control Channel Element) and combination thereof.

11. The method of claim 8, wherein a location of the UL grant comprises a pre-designated location or is determined by the DL grant.

12. The method of claim 11, wherein if the location of the UL grant is determined by the DL grant, the location of the UL grant is determined based on one selected from the group consisting of indexes of RBG (Resource Block Group), RB (Resource Block), slot, symbol, RE (Resource Element), eREG (enhanced Resource ElementG) and eCCE (enhanced Control Channel Element), on which the DL grant is received.

13. A user equipment of receiving resource allocation information in a wireless communication system, the user equipment comprising:

a receiver configured to receive E-PDCCH (enhanced-physical downlink control channel) including a downlink (DL) grant on a specific resource region from a base station; and

a processor configured to decode a resource allocation (RA) field of a DCI format of the received E-PDCCH, the processor determining whether PDSCH (physical downlink shared channel) is transmitted on the rest of the specific resource region except a DL grant region or the rest of the specific resource region except the DL grant region and a UL grant region existing in the specific resource region depending on a result of the decoded RA field.

14. The user equipment of claim 13, wherein a location of the UL grant comprises a pre-designated location or is determined by the DL grant.

15. The user equipment of claim 14, wherein if the location of the UL grant is determined by the DL grant, the processor obtains the location of the UL grant based on one selected from the group consisting of indexes of RBG (Resource Block Group), RB (Resource Block), slot, symbol, RE (Resource Element), eREG (enhanced Resource ElementG) and eCCE (enhanced Control Channel Element), on which the DL grant is received.

16. A base station of transmitting resource allocation information in a wireless communication system, the base station comprising:

a transmitter configured to transmit E-PDCCH (enhanced-physical downlink control channel) including a downlink (DL) grant on a specific resource region to a user equipment,

wherein the E-PDCCH includes a resource allocation (RA) field of a DCI format,

wherein a first indication value of the RA field indicates that PDSCH (physical downlink shared channel) is transmitted on the rest of the specific resource region except a DL grant region and

wherein a second indication value of the RA field indicates that the rest of the specific resource region except the DL grant region and a UL grant region existing in the specific resource region.

17. The base station of claim 16, wherein the specific resource region comprises a region configured by RBG (resource block group) or RB (resource block) unit.

18. The base station of claim 17, wherein the DL grant is transmitted by a unit of one selected from the group consisting of RBG (Resource Block Group), RB (Resource Block), slot, symbol, RE (Resource Element), eREG (enhanced Resource ElementG), eCCE (enhanced Control Channel Element) and combination thereof.