Method and apparatus of transmitting a white space map information in a wireless local area network system

• US 9,185,707 B2
• Filed: 08/11/2014
• Issued: 11/10/2015
• Est. Priority Date: 03/28/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Jihyun, Kim, Eunsun, Seok, Yongho
• Primary Examiner(s): Lee, John J
• Application Number:
  US14/456,472
• Publication Number:
  US 20150024798A1
• Time in Patent Office: 456 Days
• Field of Search: 455/509, 455/452.1, 455/511, 455/512, 455/515, 455/507, 455/500, 455/517, 455/452, 455/2, 455/456.1, 455/456.3, 370/329, 370/338
• US Class Current: 1/1
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/27 between access points
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A method of transmitting a White Space Map information in a wireless local area network system (WLAN) is disclosed. A method of transmitting a white space map information 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) comprises acquiring a first list of available channels at each location of a plurality of locations from a regulatory database; determining a second list of available channels at a white space zone (WSZ) using the first list of available channels at each location of a plurality of locations; and transmitting, to the second station, one of a beacon frame, a probe response frame and a white space map announcement frame comprising a white space map (WSM) element, the WSM element including information of the WSZ and the second list of available channels, wherein the WSZ is a geographical area in which commonavailable channels are set.

Claims

1. A method for transmitting a signal by a station (STA) in a wireless communication system, the method comprising:

transmitting a channel availability query including multiple device location information;

receiving a channel availability query response that includes a WSM (White Space Map); and

transmitting signal via one or more channels indicated by one or more channel numbers included in the WSM,

wherein the one or more channels is commonly used within a bounded area defined by the multiple device location information.

2. The method of claim 1, wherein the device location information consists of 3-dimensional (3D) information.

3. The method of claim 1, wherein the device location information includes a value indicating latitude, a value indicating longitude, and a value indicating altitude.

4. A station (STA) transmitting a signal by a in a wireless communication system, the STA comprising:

a transceiver; and

a processor configured to;

transmit a channel availability query including multiple device location information;

receive a channel availability query response that includes a WSM (White Space Map); and

transmit a signal via one or more channels indicated by one or more channel numbers included in the WSM,

wherein the one or more channels is commonly used within a bounded area defined by the multiple device location information.

5. The STA of claim 4, wherein the device location information consists of 3-dimensional (3D) information.

6. The STA of claim 4, wherein the device location information includes a value indicating latitude, a value indicating longitude, and a value indicating altitude.