Method and Apparatus for Transceiving Channel Availability Query and Response in a Wireless Communication System

• US 20130267237A1
• Filed: 12/08/2011
• Published: 10/10/2013
• Est. Priority Date: 12/08/2010
• 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 9,137,786 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transceiving channel availability query and response in a wireless communication system. According to the present invention, a scheme is provided to enable devices which operate in TVWS to request/response information on an available channel in a plurality of geographical locations in a more accurate and efficient manner.

Claims

1. A method of receiving available channel information, which is received by a requester station (STA) in a wireless communication system, comprising the steps of:

sending a channel availability query (CAQ) request message including a location information of the requester STA to a responder STA; and

receiving a CAQ response message including an available channel list from the responder STA.

2. The method of claim 1, wherein the CAQ request message further comprises an information on a transmit power level of the requester STA.

3. The method of claim 1, wherein the available channel list is determined based on at least one of the location information of the requester STA and the information on the transmit power level.

4. The method of claim 1, wherein the CAQ response message further comprises an allowable transmit power information for a channel belonging to the available channel list.

5. The method of claim 1, wherein the CAQ request message further comprises an information on a service coverage of the requester STA.

6. The method of claim 1, wherein the location information comprises at least one of a resolution information on a location of the requester STA and a radius information on the location of the requester STA.

7. The method of claim 6, wherein either the resolution information or the radius information comprises a service coverage of the requester STA.

8. The method of claim 1, wherein the location information comprises an information on a plurality of the locations of the requester STA.

9. The method of claim 1, wherein the CAQ request message further comprises at least one selected from the group consisting of an FCC (federal communications commission) identifier information, a manufacturer serial number information, a device type information and a spectrum mask type information of the requester STA.

10. The method of claim 1, wherein the available channel list is provided in form of either WSM (white space map) or WLAN (wireless location area network) channel number.

11. The method of claim 1, wherein the CAQ response message further comprises at least one of a device type information and a spectrum mask type information of the requester STA.

12. The method of claim 1, wherein the CAQ request message and the CAQ response message uses RLQP (registered location query protocol).

16. The method of claim 2, wherein the available channel list is determined based on at least one of the location information of the requester STA and the information on the transmit power level.

13. A method of transmitting available channel information, which is transmitted by a responder station (STA) in a wireless communication system, comprising the steps of:

receiving a channel availability query (CAQ) request message including a location information of a requester STA from the requester STA; and

sending a CAQ response message including an available channel list to the requester STA by creating the CAQ response message using information included in the CAQ request message.

14. An available channel information receiving station, which is a requester station (STA) configured to receive available channel information in a wireless communication system, comprising:

a processor configured to create a channel availability query (CAQ) request message including a location information of the requester STA; and

a transceiver configured to send the created CAQ request message to a responder STA, the transceiver configured to receive a CAQ response message including an available channel list from the responder STA.

15. An available channel information transmitting station, which is a responder station (STA) configured to transmit available channel information in a wireless communication system, comprising:

a transceiver configured to receive a channel availability query (CAQ) request message including a location information of a requester STA from the requester STA; and

a processor configured to create a CAQ response message including an available channel list using information included in the CAQ request message, the processor configured to transmit the created CAQ response message to the requester STA via the transceiver.