CHANNEL ACCESS METHOD FOR VERY HIGH THROUGHPUT (VHT) WIRELESS LOCAL ACCESS NETWORK SYSTEM AND STATION SUPPORTING THE CHANNEL ACCESS METHOD

• US 20110110351A1
• Filed: 06/18/2009
• Published: 05/12/2011
• Est. Priority Date: 06/18/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Seok, Yong Ho
• Granted Patent: US 8,989,158 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/0816 with collision avoidance

Abstract

According to an embodiment of the present invention, a channel access method in a very high throughput (VHT) system using a bonding channel consisting of a plurality of subchannels is provided. Wherein the Method comprises: transmitting a request to send (RTS) frame by one source station or each of a plurality of source stations to a destination station through any subchannel selected from the plurality of subchannels; and in response to the received RTS frame, transmitting a clear to send (CTS) frame by the destination station to one source station selected from the plurality of source stations through the bonding channel.

Claims

1. A channel access method in a very high throughput (VHT) system using a bonding channel consisting of a plurality of subchannels, comprising:

transmitting a request to send (RTS) frame by one source station or each of a plurality of source stations to a destination station through any subchannel selected from the plurality of subchannels; and

in response to the received RTS frame, transmitting a clear to send (CTS) frame by the destination station to one source station selected from the plurality of source stations through the bonding channel.

2. The channel access method of claim 1, further comprising transmitting a data frame by the selected source station to the destination station through the bonding channel.

3. The channel access method of claim 1, wherein the destination station transmits the CTS frame through the entire bonding channel or through each of the plurality of subchannels constituting the bonding channel.

4. The channel access method of claim 1, wherein the destination station transmits the CTS frame through a subchannel used by the selected source station.

5. A channel access method in a very high throughput (VHT) system using a bonding channel consisting of a plurality of subchannels, comprising:

transmitting a request to send (RTS) frame by a source station to a destination station for each of the plurality of subchannels; and

transmitting a clear to send (CTS) frame by the destination station to the source station through a subchannel in which the RTS frame is successfully received.

6. The channel access method of claim 5, further comprising transmitting a data frame by the source station to the destination station through a subchannel in which the CTS frame is received.

7. A channel access method in a very high throughput (VHT) system using a bonding channel consisting of a plurality of subchannels, comprising:

transmitting a request to send (RTS) frame by one source station or each of a plurality of source stations to a destination station through any subchannel selected from the plurality of subchannels; and

in response to the received RTS frame, transmitting a clear to send (CTS) frame by the destination station to one source station selected from the plurality of source stations through the bonding channel,

wherein the CTS frame comprises a list of subchannels to be used by the source station that receives the CTS frame to transmit a subsequent frame.

8. A channel access method in a very high throughput (VHT) system using a bonding channel consisting of a plurality of subchannels, wherein a source station transmits a request to send (RTS) frame to a destination station by using any subchannel among the plurality of subchannels or by using each of the plurality of subchannels.

9. The channel access method of claim 8, wherein, in response to the RTS frame, the destination station transmits a clear to send (CTS) frame to the source station by using any subchannel among the plurality of subchannels or by using the entire bonding channel.

10. A channel access method in a very high throughput (VHT) system using a bonding channel consisting of a plurality of subchannels, wherein a request to send (RTS) frame transmitted by a source station to a destination station comprises a list of subchannels which are desired to be used by the source station among the plurality of subchannels to transmit a subsequent frame.

11. A channel access method in a very high throughput (VHT) system using a bonding channel consisting of a plurality of subchannels, wherein a clear to send (CTS) frame transmitted by a destination station to a receiving station in response to a received request to send (RTS) frame comprises a list of subchannels which are allowed to be used by the source station among the plurality of subchannels to transmit a subsequent frame.