# US 2018/0324015 A1 · Data receiving method and apparatus supporting expansion modulation scheme

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- Number: US 2018/0324015 A1
- Document ID: US20180324015A1
- Status: Published application
- Kind: A1
- Application number: 16/020,551
- Filed: 2018-06-27
- Published: 2018-11-08
- Earliest claimed: 2013-11-28
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Yunjung Yi; Jonghyun Park; Suckchel Yang; Bonghoe Kim; Kijun Kim; Byounghoon Kim; Seungmin Lee; Daesung Hwang
- Web page: https://patentgrep.com/patent/US20180324015A1

## CPC

- H04L 27/2602: {Signal structure}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 27/34: Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 52/262: {taking into account adaptive modulation and coding [AMC] scheme}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Provided are a data receiving method supporting an expansion modulation scheme and a wireless device using the same. The wireless device receives expansion sub-frame information indicating at least one expansion sub-frame supporting the expansion modulation scheme among a plurality of sub-frames and receives downlink data according to the expansion sub-frame information.

## Claims

### Claim at position 1

1-11. (canceled)

### Claim 12

A method for receiving data in a wireless communication system, the method comprising:
configuring, by a wireless device, expansion subframe information indicating at least one expansion subframe in which expansion modulation scheme is supported among a plurality of subframes;
configuring, by the wireless device, downlink control information that includes a modulation and coding scheme (MCS) field indicating the expansion modulation scheme on a downlink control channel, in the at least one expansion subframe; and
receiving, by the wireless device, downlink data on a downlink shared channel according to the downlink control information,
wherein MCS tables for the MCS field are different in the expansion subframe and a non-expansion subframe.

### Claim 13 (depends on 12)

The method of claim 12, wherein the expansion subframe information is specific parameter configured by a higher layer.

### Claim 14 (depends on 12)

The method of claim 12, wherein the MCS tables are used to determine a modulation order used in a physical downlink shared channel (PDSCH).

### Claim 15 (depends on 12)

The method of claim 12, wherein the MCS field has different bit numbers in the expansion subframe and the non-expansion subframe.

### Claim 16 (depends on 12)

The method of claim 12, wherein the MCS field has a same bit number in the expansion subframe and the non-expansion subframe.

### Claim 17 (depends on 12)

The method of claim 12, wherein the expansion subframe supports a modulation scheme that has modulation order of 8, and non-expansion subframe, which is not the expansion subframe among the plurality of subframes, has a modulation order of less than 8.

### Claim 18 (depends on 12)

The method of claim 12, wherein the expansion modulation scheme includes 256-quadrature amplitude modulation (QAM).

### Claim 19 (depends on 12)

The method of claim 12, wherein the expansion subframe information includes information on a plurality of expansion frame sets, and each of the MCS tables is defined for each of the plurality of expansion frame sets.

### Claim 20 (depends on 19)

The method of claim 19, wherein at least one of the MCS tables for the plurality of expansion frame sets is an expansion MCS table including the expansion modulation scheme, and
wherein a channel quality indicator (CQI) table related to the expansion MCS table includes the expansion modulation scheme.

### Claim 21

A wireless device in a wireless communication system, the wireless device comprising:
a radio frequency (RF) unit configured to transmit and receive a radio signal; and
a processor connected to the RF unit,
wherein the processor is configured to:
configure expansion subframe information indicating at least one expansion subframe in which expansion modulation scheme is supported among a plurality of subframes through the RF unit;
configure downlink control information that includes a modulation and coding scheme (MCS) field indicating the expansion modulation scheme on a downlink control channel, in the at least one expansion subframe through the RF unit; and
receive downlink data on a downlink shared channel according to the downlink control information through the RF unit,
wherein MCS tables for the MCS field are different in the expansion subframe and a non-expansion subframe.

### Claim 22 (depends on 21)

The wireless device of claim 21, wherein the expansion subframe information is specific parameter configured by a higher layer.

### Claim 23 (depends on 21)

The wireless device of claim 21, wherein the MCS tables are used to determine a modulation order used in a physical downlink shared channel (PDSCH).

### Claim 24 (depends on 21)

The wireless device of claim 21, wherein the MCS field has different bit numbers in the expansion subframe and the non-expansion subframe.

### Claim 25 (depends on 21)

The wireless device of claim 21, wherein the MCS field has a same bit number in the expansion subframe and the non-expansion subframe.

### Claim 26 (depends on 21)

The wireless device of claim 21, wherein the expansion subframe supports a modulation scheme that has modulation order of 8, and non-expansion subframe, which is not the expansion subframe among the plurality of subframes, has a modulation order of less than 8.

### Claim 27 (depends on 21)

The wireless device of claim 21, wherein the expansion modulation scheme includes 256-quadrature amplitude modulation (QAM).

### Claim 28 (depends on 21)

The wireless device of claim 21, wherein the expansion subframe information includes information on a plurality of expansion frame sets, and each of the MCS tables is defined for each of the plurality of expansion frame sets.

### Claim 29 (depends on 28)

The wireless device of claim 28, wherein at least one of the MCS tables for the plurality of expansion frame sets is an expansion MCS table including the expansion modulation scheme, and
wherein a channel quality indicator (CQI) table related to the expansion MCS table includes the expansion modulation scheme.