Method and Apparatus for Transmitting and Receiving a Measured Report Frame in a Wireless Local Area Network System

• US 20130205313A1
• Filed: 11/29/2010
• Published: 08/08/2013
• Est. Priority Date: 04/19/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Eunsun, Seok, Yongho
• Granted Patent: US 9,648,383 B2
• Time in Patent Office: Days
• US Class Current: 725/14
• CPC Class Codes: H04N 21/24 Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests monitoring of server performance or load G06F11/34; arrangements for observation, testing or troubleshooting for broadcast or for distribution combined with broadcast H04H20/12
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/4383 Accessing a communication channel
• CPC Class Codes: H04N 5/50 Tuning indicators; Automatic tuning control
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks

Abstract

A method of transmitting and receiving a measurement report frame in a wireless local area network (WLAN) is disclosed. A method of transmitting a measurement report frame form a first station to a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) comprising: receiving, at the first station, a measurement request frame from the second station; and transmitting, to the second station, the measurement report frame including a Primary Service Signal Map field indicating which TV channels are occupied by a primary service signal, wherein the primary service signal is a signal that requires protection by regulation.

Claims

1. A method of transmitting a measurement report frame from a first station to a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN), the method comprising:

receiving, at the first station, a measurement request frame from the second station; and

transmitting, to the second station, the measurement report frame including a Primary Service Signal Map field indicating which TV channels are occupied by a primary service signal, wherein the primary service signal is a signal that requires protection by regulation.

2. The method of claim 1, wherein the Primary Service Signal Map field includes a number of TV channels subfield and at least one TV channel number subfield, wherein the number of TV channels subfield indicates the number of the TV channel number subfields and the TV channel number subfield indicates a number of TV channel on which the primary service signal is detected.

3. The method of claim 2, wherein the measurement report frame further includes a measurement duration field indicating a measurement duration for which the first station performs sensing, and a TV channel indicated by the TV channel number subfield is a TV channel on which the primary service signal over a certain threshold energy level is detected for the measurement duration.

4. The method of claim 1, wherein the measurement report frame further includes a operating class field and a channel number field which indicate a WLAN channel the first station performs sensing on.

5. The method of claim 4, the TV channels correspond to the WLAN channel.

6. The method of claim 1, wherein the measurement report frame further includes a Secondary Service Signal Map field indicating which TV channels are occupied by the unlicensed device.

7. An apparatus of transmitting a measurement report frame to a station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN), the apparatus comprising:

a receiver receiving a measurement request frame from the second station; and

a transmitter transmitting the measurement report frame including a Primary Service Signal Map field indicating which TV channels are occupied by a primary service signal, wherein the primary service signal is a signal that requires protection by regulation.

8-11. -11. (canceled)

12. A method of receiving a measurement report frame at a first station from a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN), the method comprising:

transmitting, from the first station, a measurement request frame to the second station; and

receiving, from the second station, the measurement report frame including a Primary Service Signal Map field indicating which TV channels are occupied by a primary service signal, wherein the primary service signal is a signal that requires protection by regulation.

13. The method of claim 12, wherein the Primary Service Signal Map field includes a number of TV channels subfield and at least one TV channel number subfield, wherein the number of TV channels subfield indicates the number of the TV channel number subfields and the TV channel number subfield indicates a number of TV channel on which the primary service signal is detected.

14. The method of claim 13, wherein the measurement report frame further includes a measurement duration field indicating a measurement duration for which the second station performs sensing, and a TV channel indicated by the TV channel number subfield is a TV channel on which the primary service signal over a certain threshold energy level is detected for the measurement duration.

15. The method of claim 12, wherein the measurement report frame further includes a operating class field and a channel number field which indicate a WLAN channel the second station performs sensing on.

16. The method of claim 15, the TV channels corresponds to the WLAN channel.

17. The method of claim 12, wherein the measurement report frame further includes a Secondary Service Signal Map field indicating which TV channels are occupied by the unlicensed device.

18. An apparatus of receiving a measurement report frame from a station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN), the apparatus comprising:

a transmitter transmitting a measurement request frame to the station; and

a receiver receiving, from the station, the measurement report frame including a Primary Service Signal Map field indicating which TV channels are occupied by a primary service signal, wherein the primary service signal is a signal that requires protection by regulation.

19-22. -22. (canceled)