METHOD FOR TRANSMITTING AND RECEIVING SIGNALS IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR

• US 20190124652A1
• Filed: 04/14/2017
• Published: 04/25/2019
• Est. Priority Date: 04/15/2016
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: KIM, Jinmin, CHO, Hangyu, BANG, Saehee, JO, Kyungtae, PARK, Sungjin
• Granted Patent: US 10,743,311 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/0695 using beam selection
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

The present specification relates to a method for transmitting and receiving signals by a station in a wireless LAN (WLAN) system. More specifically, the present specification proposes a method for providing information on a primary channel and information on a channel for transmitting signals when a station transmits signals by bonding or combining a plurality of channels, and suggests a method for transmitting and receiving signals on the basis of such method for providing information, and an apparatus therefor.

Claims

1. A method of transmitting a signal by a first station (STA) to a second STA in a wireless local area network (WLAN) system, the method comprising:

transmitting a beacon frame via a primary channel or transmitting information indicating the primary channel to the second STA;

transmitting information indicating a plurality of channels comprising the primary channel on which a signal is transmitted to the second STA; and

transmitting the signal to the second STA via the plurality of the channels.

2. The method of claim 1, wherein the plurality of the channels comprises two to four channels.

3. The method of claim 2, wherein the plurality of the channels are channels adjacent to each other.

4. The method of claim 3, wherein when the plurality of the channels are two channels, the two channels comprise two channels adjacent to each other or two channels not adjacent to each other.

5. The method of claim 1, wherein when the first STA transmits the information indicating the primary channel, the information indicating the primary channel and the information indicating the plurality of the channels on which the signal is transmitted are transmitted via an enhanced directional multi-gigabit (EDMG) Header-A field.

6. The method of claim 1, wherein when the first STA transmits the information indicating the primary channel, the information indicating the primary channel and the information indicating the plurality of the channels on which the signal is transmitted are transmitted via an enhanced directional multi-gigabit (EDMG) operation element.

7. The method of claim 1, wherein when the first STA transmits the beacon frame via the primary channel, the beacon frame is transmitted during a Beacon Transmission Interval (BTI).

8. The method of claim 7, wherein the beacon frame is not transmitted on a channel rather than the primary channel.

9. A method of receiving a signal by a first station (STA) from a second STA in a wireless local area network (WLAN) system, the method comprising:

obtaining information on a primary channel by receiving a beacon frame via the primary channel or receiving information indicating the primary channel from the second STA;

receiving information indicating a plurality of channels comprising the primary channel on which a signal is transmitted from the second STA; and

receiving the signal from the second STA via the plurality of the channels.

10. The method of claim 9, wherein the plurality of the channels comprise two to four channels.

11. The method of claim 10, wherein the plurality of the channels are channels adjacent to each other.

12. The method of claim 11, wherein when the plurality of the channels are two channels, the two channels contain two channels adjacent to each other or two channel not adjacent to each other.

13. The method of claim 9, wherein when the first STA receives the information indicating the primary channel, the information indicating the primary channel and the information indicating the plurality of the channels on which the signal is transmitted are transmitted via an enhanced directional multi-gigabit (EDMG) Header-A field.

14. The method of claim 13, wherein the information indicating the primary channel and the information indicating the plurality of the channels on which the signal is transmitted are transmitted via a channel selected among the one or more channels and wherein the signal transmitted from the second STA is transmitted using all of the plurality of the channels.

15. The method of claim 9, wherein when the first STA receives the information indicating the primary channel, the information indicating the primary channel and the information indicating the plurality of the channels on which the signal is transmitted are transmitted via an enhanced directional multi-gigabit (EDMG) operation element.

16. The method of claim 9, further comprising transmitting an Sector Sweep (SSW) frame via the primary channel.

17. The method of claim 9, wherein when the first STA receives the beacon frame via the primary channel, the beacon frame is transmitted during a Beacon Transmission Interval (BTI).

18. The method of claim 17, wherein the beacon frame is not transmitted on a channel rather than the primary channel.

19. A first station (STA) transmitting a signal in a wireless local area network (WLAN) system, the first STA comprising:

a transceiver configured to transceive a signal with a second STA with one or more Radio Frequency (RF) chains; and

a processor configured to process the signal transceived with the second STA in a manner of being connected with the transceiver,

wherein the processor configured to;

transmit a beacon frame via a primary channel or transmit information indicating the primary channel to the second STA,

transmit information indicating a plurality of channels comprising the primary channel on which a signal is transmitted to the second STA, and

transmit the signal to the second STA via the plurality of the channels.

20. A first station (STA) receiving a signal in a wireless local area network (WLAN) system, the first STA comprising:

a transceiver configured to transceive a signal with a second STA with one or more Radio Frequency (RF) chains; and

a processor configured to process the signal transceived with the second STA in a manner of being connected with the transceiver,

wherein the processor configured to;

obtain information on a primary channel by receiving a beacon frame via the primary channel or receiving information indicating the primary channel from the second STA,

receive information indicating a plurality of channels comprising the primary channel on which a signal is transmitted from the second STA, and

receive the signal from the second STA via the plurality of the channels.