# US 2014/0153452 A1 · Method for transceiving data in a wireless access system, and base station and terminal for same

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- Number: US 2014/0153452 A1
- Document ID: US20140153452A1
- Status: Published application
- Kind: A1
- Application number: 14/131,834
- Filed: 2012-07-27
- Published: 2014-06-05
- Earliest claimed: 2011-07-28
- Assignees: LG Electronics Inc.
- Inventors: Hyukmin Son; Jinmin Kim; Seunghee Han; Hyunwoo Lee; Hyeyoung Choi
- Web page: https://patentgrep.com/patent/US20140153452A1

## CPC

- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04J 11/003: {at the transmitter (transmission to multiple receive units in multiple input multiple output [MIMO] H04B7/0452; transmit antenna weighting H04B7/0615)}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0037: {Inter-user or inter-terminal allocation}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)

## Abstract

Disclosed are a method for transceiving data in a wireless access system, and a base station and terminal therefor. More particularly, the present invention relates to a method for transceiving data, and to a base station device for the method, wherein the method comprises the steps of: transmitting, in a single first subframe, a physical downlink control channel (PDCCH) including downlink scheduling information on each terminal; and transmitting, in a plurality of second subframes, a physical downlink shared channel (PDSCH) relevant to said PDCCH to each terminal. The PDCCH supports a carrier aggregation that includes a field indicating said plurality of second subframes in which said PDSCH is transmitted.

## Claims

### Claim 1

A method for transmitting and receiving data in a wireless access system, comprising:
transmitting, in one first subframe, a physical downlink control channel (PDCCH) including downlink scheduling information of each user equipment; and
transmitting, in a plurality of second subframes, a physical downlink shared channel (PDSCH) corresponding to the PDCCH to each user equipment,
wherein the PDCCH includes a field indicating the plural second subframes in which the PDSCH is transmitted.

### Claim 2 (depends on 1)

The method according to claim 1, wherein, if the wireless access system uses a time division duplex (TDD) scheme, the field includes an offset value for each subframe or for all subframes for transmission of the PDSCH, and the offset value indicates an interval between the first subframe and each of the second subframes.

### Claim 3 (depends on 1)

The method according to claim 1, wherein, if a modulation and coding scheme (MCS) level of each user equipment is less than a specific threshold value, PDSCHs are transmitted in the second subframes.

### Claim 4 (depends on 1)

The method according to claim 1, wherein a PDCCH region of each user equipment is orthogonally located based on a cell identifier (ID).

### Claim 5 (depends on 1)

The method according to claim 1, further comprising transmitting information about a carrier on which the PDSCH is transmitted through higher layer signaling.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the field is a carrier indicator field (CIF) or a subframe indicator field (SIF).

### Claim 7

A base station for transmitting and receiving data in a wireless access system, comprising:
a radio frequency (RF) unit for transmitting and a receiving a radio signal; and
a processor for controlling the RF unit to transmit, in one first subframe, a physical downlink control channel (PDCCH) including downlink scheduling information of each user equipment and to transmit, in a plurality of second subframes, a physical downlink shared channel (PDSCH) corresponding to the PDCCH to each user equipment,
wherein the PDCCH includes a field indicating the plural second subframes in which the PDSCH is transmitted.

### Claim 8 (depends on 7)

The base station according to claim 7, wherein, if the wireless access system uses a time division duplex (TDD) scheme, the field includes an offset value for each subframe or all subframes for transmission of the PDSCH, and the offset value indicates an interval between the first subframe and each of the second subframes.

### Claim 9 (depends on 7)

The base station according to claim 7, wherein, if a modulation and coding scheme (MCS) level of each user equipment is less than a specific threshold value, PDSCHs are transmitted in the second subframes.

### Claim 10 (depends on 7)

The base station according to claim 7, wherein a PDCCH region of each user equipment is orthogonally located based on a cell identifier (ID).

### Claim 11 (depends on 7)

The base station according to claim 7, the base station transmits information about a carrier on which the PDSCH is transmitted through higher layer signaling.

### Claim 12 (depends on 7)

The base station according to claim 7, wherein the field is a carrier indicator field (CIF) or a subframe indicator field (SIF).