Multiple network allocation vector operation

• US 9,801,184 B2
• Filed: 12/28/2016
• Issued: 10/24/2017
• Est. Priority Date: 12/28/2015
• Status: Active Grant

• Current Assignee: Atlas Global Technologies LLC (Acacia Research Corporation)
• Original Assignee: Newracom Inc.
• Inventors: Noh, Yujin, Seok, Yong Ho, Lee, Dae Won
• Primary Examiner(s): SHIVERS, ASHLEY L
• Application Number:
  US15/393,084
• Publication Number:
  US 20170188376A1
• Time in Patent Office: 300 Days
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 52/42 in systems with time, space, frequency or polarisation diversity
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 74/0816 with collision avoidance
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A first wireless device may determine a bandwidth for transmitting a frame, calculate two or more Spatial Reuse (SR) parameter values for the bandwidth, set, using the SR parameter values, first and second SR fields of the frame based on the bandwidth and a channel center frequency in which the bandwidth is carried, and transmit the frame to a second wireless device on the bandwidth. The first and second SR fields may be set to a first value when the bandwidth is a 40 MHz bandwidth and the channel center frequency is in a 2.4 GHz band. The first and second SR fields may be set to the first value when the bandwidth is an 80+80 MHz bandwidth and the channel center frequency is in a 5 GHz band. The first value may be a minimum of SR parameter values for first and second bandwidths in the bandwidth.

Claims

1. A method performed by a first wireless device, the method comprising:

determining, by the first wireless device, a bandwidth on which a frame will be transmitted to a second wireless device;

determining, by the first wireless device, two or more Spatial Reuse (SR) parameter values for the bandwidth;

setting, by the first wireless device using the two or more SR parameter values, a first SR field and a second SR field of the frame based on the bandwidth and a channel center frequency in which the bandwidth is carried; and

transmitting the frame to the second wireless device on the bandwidth,

wherein the first and second SR fields indicate respective properties other than the bandwidth and the channel center frequency in which the bandwidth is carried.

2. The method of claim 1, further comprising:

setting the first SR field and the second SR field to a first SR value when the bandwidth is a 40 MHz bandwidth and the channel center frequency is in a 2.4 GHz band.

3. The method of claim 2, further comprising:

setting a third SR field of the frame to the first SR value; and

setting a fourth SR field of the frame to the first SR value when the bandwidth is the 40 MHz bandwidth and the channel center frequency is in the 2.4 GHz band.

4. The method of claim 2, further comprising when the bandwidth is the 40 MHz bandwidth and the channel center frequency is in the 2.4 GHz band:

determining a first SR parameter value for a first 20 MHz bandwidth in the bandwidth;

determining a second SR parameter value for a second 20 MHz bandwidth in the bandwidth; and

setting the first SR value to a minimum of the first SR parameter value and the second SR parameter value when the bandwidth is the 40 MHz bandwidth and the channel center frequency is in the 2.4 GHz band.

5. The method of claim 1, further comprising:

setting the first SR field to a first SR value when the bandwidth is an 80+80 MHz bandwidth and the channel center frequency is in a 5 GHz band; and

setting the second SR field to a second SR value when the bandwidth is an 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band.

6. The method of claim 5, further comprising:

setting a third SR field of the frame to the first SR value when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band; and

setting a fourth SR field of the frame to the second SR value when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band.

7. The method of claim 6, further comprising when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is 5 GHz:

determining a first SR parameter value, in the two or more SR parameter values, for a first 40 MHz bandwidth of the bandwidth;

determining a second SR parameter value, in the two or more SR parameter values, for a second 40 MHz bandwidth of the bandwidth;

determining a third SR parameter value, in the two or more SR parameter values, for a third 40 MHz bandwidth of the bandwidth;

determining a fourth SR parameter value, in the two or more SR parameter values, for a fourth 40 MHz bandwidth of the bandwidth;

setting the first SR value to a minimum of the first SR parameter value and the third SR parameter value when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band; and

setting the second SR value to a minimum of the second SR parameter value and the fourth SR parameter value when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band.

8. The method of claim 1, wherein the first SR field has a length of four bits and the second SR field has a length of four bits.

9. A method performed by a wireless device, the method comprising:

determining, by the wireless device, an operational bandwidth of a frame to be transmitted;

determining, by the wireless device, a plurality of Spatial Reuse (SR) parameter values for the operational bandwidth;

setting, by the wireless device using the plurality of SR parameters, first and second fields of the frame according to the operational bandwidth and a channel center frequency, the first and second fields each including information for use in a Spatial Reuse (SR) operation; and

transmitting the frame using the channel center frequency and the operational bandwidth,

wherein the first and second fields indicate respective properties other than the operational bandwidth and the channel center frequency.

10. The method of claim 9, further comprising:

setting the first field and the second field to a first value when the operational bandwidth is a 40 MHz bandwidth and the channel center frequency is in a 2.4 GHz band.

11. The method of claim 10, further comprising:

setting a third field of the frame to the first value, the third field including information for use in the SR operation; and

setting a fourth field of the frame to the first value when the bandwidth is a 40 MHz bandwidth and the channel center frequency is in the 2.4 GHz band, the fourth field including information for use in the SR operation.

12. The method of claim 10, further comprising:

determining a first SR parameter value of the plurality of SR parameter values for a first 20 MHz bandwidth of the operational bandwidth;

determining a second SR parameter value of the plurality of SR parameter values for a second 20 MHz bandwidth of the operational bandwidth; and

setting the first value to a minimum of the first SR parameter value and the second SR parameter value when the bandwidth is the 40 MHz bandwidth and the channel center frequency is in the 2.4 GHz band.

13. The method of claim 9, further comprising:

setting the first field to a first value when the bandwidth is an 80+80 MHz bandwidth and the channel center frequency is in a 5 GHz band; and

setting the second field to a second value when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band.

14. The method of claim 13, further comprising:

setting a third field of the frame to the first value; and

setting a fourth field of the frame to the second value when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band.

15. The method of claim 14, further comprising:

determining a first SR parameter value of the plurality of SR parameter values for a first 40 MHz bandwidth of the operational bandwidth;

determining a second SR parameter value of the plurality of SR parameter values for a second 40 MHz bandwidth of the operational bandwidth;

determining a third SR parameter value of the plurality of SR parameter values for a third 40 MHz bandwidth of the operational bandwidth;

determining a fourth SR parameter value of the plurality of SR parameter values for a fourth 40 MHz bandwidth of the operational bandwidth;

setting the first value to a minimum of the first SR parameter and the third SR parameter when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band; and

setting the second value to a minimum of the second SR parameter and the fourth SR parameter when the bandwidth is the 80+80 MHz bandwidth and the channel center frequency is in the 5 GHz band.

16. The method of claim 9, wherein the first field has a length of four bits and the second field has a length of four bits.

17. The method of claim 9, wherein the first field corresponds to a signal power and the second field corresponds to a signal power.

18. A first wireless device, comprising:

one or more processors; and

a transmitter circuit,

wherein the first wireless device is to;

determine, using the one or more processors, a bandwidth on which a frame will be transmitted to a second wireless device;

calculate, using the one or more processors, two or more Spatial Reuse (SR) parameter values for the bandwidth;

set, using the one or more processors and the two or more SR parameter values, a first SR field and a second SR field of the frame based on the bandwidth and a channel center frequency on which the bandwidth is carried; and

transmit, using the transmitter circuit, the frame to the second wireless device on the bandwidth,

wherein the first and second SR fields indicate respective properties other than the bandwidth and the channel center frequency on which the bandwidth is carried.