US 2018/0124788 A1 · METHOD AND DEVICE FOR PERFORMING COMMUNICATION BY USING PLURALITY OF RESOURCE ARRANGEMENT TECHNIQUES IN WIRELESS LAN SYSTEM

Abstract

A method and a device for performing communication by using various RUs in a wireless LAN are presented. If a center resource unit located in the vicinity of a DC frequency band exists, whether the corresponding center resource unit is used can be determined according to whether a discontinuous channel allocation is applied. The center resource unit can be used as a null subcarrier for canceling the interference, which becomes a problem due to the discontinuous channel allocation. If the center resource unit is used as the null subcarrier, the center resource unit is inserted into different frequency chunks, thereby mitigating the interference that can be generated for each frequency chunk.

Claims12

Dependent claims

A method for transmitting a signal by using a plurality of resource units (RUs) having subcarriers allocated thereto in a wireless LAN system, comprising:

determining, by a transmitting station, whether or not to apply non-contiguous channel allocation not using at least one of a plurality of unit channels;
in case the non-contiguous channel allocation is not applied, configuring, by the transmitting station, a PPDU by using a first resource unit arrangement;
in case the non-contiguous channel allocation is applied, configuring, by the transmitting station, a PPDU by using a second resource unit arrangement;
and
transmitting the PPDU,
wherein, in case the first resource unit arrangement is used, the transmitting station configures the PPDU by using a central resource unit (RU) including a non-contiguous tone group within a central frequency band including a DC band, and
wherein, in case the second resource unit arrangement is used, the transmitting station configures the PPDU without using the central RU.

4 more elements

A transmitting station for transmitting a signal by using a plurality of resource units (RUs) having subcarriers allocated thereto in a wireless LAN system, comprising:

a radio frequency (RF) unit transmitting and receiving radio signals;
and
a processor controlling the RF unit,
wherein the processor is configured:
to determine whether or not to apply non-contiguous channel allocation not using at least one of a plurality of unit channels,
to configure a PPDU by using a first resource unit arrangement, in case the non-contiguous channel allocation is not applied,
to configure a PPDU by using a second resource unit arrangement, in case the non-contiguous channel allocation is applied, and
to transmit the PPDU,
wherein, in case the first resource unit arrangement is used, the transmitting station configures the PPDU by using a central resource unit (RU) including a non-contiguous tone group within a central frequency band including a DC band, and
wherein, in case the second resource unit arrangement is used, the transmitting station configures the PPDU without using the central RU.

7 more elements

Dependencies are inferred from the claim text.

Method and device for performing communication by using plurality of resource arrangement techniques in wireless lan system

Life of this patent

Method and device for performing communication by using plurality of resource arrangement techniques in wireless lan system

Life of this patent

Abstract

Claims12