Method and apparatus for space division multiple access for wireless local area network system

• US 9,974,098 B2
• Filed: 02/22/2017
• Issued: 05/15/2018
• Est. Priority Date: 05/22/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Seok, Yong Ho
• Primary Examiner(s): Qureshi, Afsar M
• Application Number:
  US15/439,666
• Publication Number:
  US 20170164401A1
• Time in Patent Office: 447 Days
• Field of Search: 370328, 370329, 370338
• CPC Class Codes: H04W 28/0236 radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 28/0268 using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 52/58 Format of the TPC bits
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 74/004 in the uplink, i.e. towards network
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A space division multiple access (SDMA) method is provided. The method may be performed by a station (STA), in a wireless local area network (WLAN) system. The method includes overhearing a third transmission response message transmitted by an access point (AP), and determining whether to access a channel on the basis of criteria information included in the third transmission response message.

Claims

1. A method for a wireless local area network, the method comprising:

transmitting, by a transmitting station, a status message to an access point (AP), the status message includes about an access category (AC) indicating a quality of service for an uplink traffic that the transmitting station wants to send;

receiving, by the transmitting station, an access message from the AP to request the transmitting station to participate uplink transmissions; and

transmitting, by the transmitting station, a data frame to the AP, the data frame including uplink data,

wherein the access message includes information about a recommended AC indicating a recommended quality of service for the uplink data that are to be sent by the transmitting station.

2. The method of claim 1, wherein the access message further includes information about a target received signal power for the data frame.

3. The method of claim 1, wherein the information about the recommended AC in the access message is represented as two bits.

4. A device for a wireless local area network, the device comprising:

a transceiver configured to transmit and receive radio signals; and

a processor operatively coupled with the transceiver and configured to;

instruct the transceiver to transmit a status message to an access point (AP), the status message includes about an access category (AC) indicating a quality of service for an uplink traffic that the device wants to send;

instruct the transceiver to receive an access message from the AP to request the device to participate uplink transmissions; and

instruct the transceiver to transmit a data frame to the AP, the data frame including uplink data,

wherein the access message includes information about a recommended AC indicating a recommended quality of service for the uplink data that are to be sent by the device.

5. The device of claim 4, wherein the access message further includes information about a target received signal power for the data frame.

6. The device of claim 4, wherein the information about the recommended AC in the access message is represented as two bits.