METHOD AND DEVICE FOR INFORMATION TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

• US 20140112280A1
• Filed: 05/31/2012
• Published: 04/24/2014
• Est. Priority Date: 06/08/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Hyunwoo, Han, Seunghee, Kim, Jinmin
• Granted Patent: US 9,271,265 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 27/2636 with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention relates to a wireless communication system and more specifically relates to a method and device for transmitting information. A wireless communication system can support carrier aggregation (CA). In one aspect of the present invention, a method, in which a terminal receives information from a base station in a wireless communication, comprises the steps of: receiving, from the base station, first information on the transmission method of a first channel; receiving the receiving the first channel, from the base station, via at least one serving cell formed in the terminal; and carrying out decoding on the first channel in accordance with the first information. Therein, the first channel is an enhanced physical downlink control channel (ePDCCH), and the terminal is capable of not carrying out decoding on the first channel in a frequency region in a present subframe.

Claims

1. A method for a user equipment (UE) to receive information from a base station (BS) in a wireless communication system, the method comprising:

receiving, from the BS, first information on a transmission method of a first channel; and

decoding the first channel in accordance with the first information, wherein the first channel is received by the UE from the BS via at least one serving cell configured to the UE,

wherein the first channel is an enhanced physical downlink control channel (ePDCCH),

wherein the first information includes information on a resource region in which the first channel is received, and

wherein the information on the resource region includes at least one of time region information and frequency region information.

2. The method according to claim 1, wherein the preset subframe is a subframe configured as an Almost Blank Subframe (ABS).

3. The method according to claim 1, wherein the preset subframe is a subframe set C_CSI,0 or C_CSI,1 configured for channel state information (CSI) measurement.

4. The method according to claim 1, wherein the preset subframe is a subframe configured for paging.

6. The method according to claim 1, wherein the time region information corresponds to one of information on a symbol basis, information on a slot basis or information on a subframe, and

wherein the frequency region information corresponds to information on a physical resource block (PRB) basis.

7. The method according to claim 6, wherein the first information includes at least one of information on indices of PRBs used for the first channel from among all PRBs, information on the lowest PRB index used for the first channel from among all PRBs, or information indicating the indices of PRBs used for the first channel through a bitmap of all PRBs.

8. The method according to claim 1, wherein the first information is received from the BS through radio resource control (RRC) signaling.

17. The method according to claim 1, wherein a start orthogonal frequency division multiplexing (OFDM) symbol position of the first channel is determined based on ePDCCH start OFDM symbol information included in the first information.

18. The method according to claim 1, wherein a start orthogonal frequency division multiplexing (OFDM) symbol position of the first channel is determined based on a number of OFDM symbols for a PDCCH which is indicated by Physical Control Format Indicator Channel (PCFICH).

19. The method according to claim 1, wherein the UE is configured not to decode the first channel on a resource region overlapped with one of a Physical Broadcast Channel (PBCH), a Primary Synchronization Signal or a Secondary Synchronization Signal.

20. The method according to claim 1, wherein the UE does not perform decoding the first channel in a frequency region in a preset subframe.

5. (canceled)

9. A user equipment (UE) for receiving information from a base station (BS) in a wireless communication system, comprising:

a reception module for receiving, from the BS, first information on a transmission method of a first channel; and

a processor for decoding the first channel in accordance with the first information, wherein the first channel is received by the UE from the BS via at least one serving cell configured to the UE,

wherein the first channel is an enhanced physical downlink control channel (ePDCCH),

wherein the first information includes information on a resource region in which the first channel is received, and

wherein the information on the resource region includes at least one of time region information and frequency region information.

10-16. -16. (canceled)