IP Library › Granted Patent US 12,143,945
Granted Patent B2
US 12,143,945 · App. 18/542,332 · Granted Nov 12, 2024

Power spectral density limit for 6 GHz

Inventors: Laurent Cariou (Milizac, FR); Ido Ouzieli (Tel Aviv, IL); Carlos Cordeiro (Portland, OR); Hassan Yaghoobi (San Jose, CA); Thomas J. Kenney (Portland, OR)
Assignee: Intel Corporation
H04W52/346H04W52/325H04W52/365H04W52/52
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Quick Facts
Patent No.
US 12,143,945
App. No.
18/542,332
Granted
Nov 12, 2024
Kind
B2
Abstract

This disclosure describes systems, methods, and devices related to power spectral density (PSD) limit. A device may generate a frame comprising one or more elements to be sent to a first station device, wherein the frame is to be sent using a 6 GHz band. The device may include in the frame, information associated with a PSD limit on a per bandwidth size basis of the 6 GHz band. The device may cause to send the frame to the first station device.

Claims (29)

1. A device, the device comprising processing circuitry coupled to storage, the processing circuitry configured to:

generate a frame comprising one or more fields to send to a station device (STA), wherein the frame is to be sent using a 6 GHz band;

include in the frame, transmit power envelope element field that comprises a transmit power information field and a maximum transmit power field, wherein transmit power envelope element field indicates an allowed maximum transmit power by the STA, wherein the allowed maximum transmit power is a power spectral density (PSD) limit on per bandwidth size basis of the 6 GHz band; and

cause to send the frame to the STA.

2. The device of claim 1 , wherein the frame is a beacon frame, a probe response, or an association response.

3. The device of claim 1 , wherein the transmit power information field comprises a Maximum Transmit Power Interpretation subfield that indicates an equivalent isotropically radiated power (EIRP).

4. The device of claim 3 , wherein a Maximum Transmit Power Count subfield is included in the Maximum Transmit Power Interpretation subfield and wherein the Maximum Transmit Power Count subfield determines a value of an integer N that specifies a format and interpretation of the Maximum Transmit Power field.

5. The device of claim 4 , wherein if N is 0, then the Maximum Transmit Power field contains one Maximum Transmit PSD subfield that represents the maximum transmit PSD for a physical layer (PHY) convergence protocol data unit (PPDU) of any bandwidth within a basic service set (BSS) bandwidth.

6. The device of claim 4 , wherein if N is greater than 0, then the Maximum Transmit Power field has N octets, with N representing a number of 20 MHz channels for which the allowed maximum transmit power is indicated.

7. The device of claim 6 , wherein an X-th octet (X=integer ranging from 1 to N) of the Maximum Transmit Power field is a Maximum Transmit PSD X subfield, which indicates the maximum transmit PSD for a X-th 20 MHz channel.

8. The device of claim 1 , wherein the transmit power information is included in a reduced neighbor report (RNR) of a collocated Access point reporting an AP operating at 6 GHz.

9. The device of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals.

10. The device of claim 9 , further comprising an antenna coupled to the transceiver to cause to send the frame.

11. A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:

generating a frame comprising one or more fields to send to a station device (STA), wherein the frame is to be sent using a 6 GHz band;

including in the frame, transmit power envelope element field that comprises a transmit power information field and a maximum transmit power field, wherein transmit power envelope element field indicates an allowed maximum transmit power by the STA, wherein the allowed maximum transmit power is a power spectral density (PSD) limit on per bandwidth size basis of the 6 GHz band; and

causing to send the frame to the STA.

12. The non-transitory computer-readable medium of claim 11 , wherein the frame is a beacon frame or a probe response frame.

13. The non-transitory computer-readable medium of claim 11 , wherein the transmit power information field comprises a Maximum Transmit Power Interpretation subfield that indicates an equivalent isotropically radiated power (EIRP).

14. The non-transitory computer-readable medium of claim 13 , wherein a Maximum Transmit Power Count subfield is included in the Maximum Transmit Power Interpretation subfield and wherein the Maximum Transmit Power Count subfield determines a value of an integer N that specifies a format and interpretation of the Maximum Transmit Power field.

15. The non-transitory computer-readable medium of claim 14 , wherein if N is 0, then the Maximum Transmit Power field contains one Maximum Transmit PSD subfield that represents the maximum transmit PSD for a physical layer (PHY) convergence protocol data unit (PPDU) of any bandwidth within a basic service set (BSS) bandwidth.

16. The non-transitory computer-readable medium of claim 14 , wherein if N is greater than 0, then the Maximum Transmit Power field has N octets, with N representing a number of 20 MHz channels for which the allowed maximum transmit power is indicated.

17. The non-transitory computer-readable medium of claim 16 , wherein an X-th octet (X=integer ranging from 1 to N) of the Maximum Transmit Power field is a Maximum Transmit PSD X subfield, which indicates the maximum transmit PSD for a X-th 20 MHz channel.

18. The non-transitory computer-readable medium of claim 11 , wherein the transmit power information is included in a reduced neighbor report (RNR) of a collocated Access point reporting an AP operating at 6 GHz.

19. A method comprising:

generating a frame comprising one or more fields to send to a station device (STA), wherein the frame is to be sent using a 6 GHz band;

including in the frame, transmit power envelope element field that comprises a transmit power information field and a maximum transmit power field, wherein transmit power envelope element field indicates an allowed maximum transmit power by the STA, wherein the allowed maximum transmit power is a power spectral density (PSD) limit on per bandwidth size basis of the 6 GHz band; and

causing to send the frame to the STA.

20. The method of claim 19 , wherein the frame is a beacon frame or a probe response frame.

Continuity (3)
Continuation 17318277 · May 12, 2021
Provisional Application 63023529 · May 12, 2020
Related Publication 20240196341A1 · Jun 13, 2024