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Method and apparatus for acquiring available channel information in a wireless local area network system
US9049686B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9049686-B2 |
| Application number | US-201314074276-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 7, 2013 |
| Priority date | Mar 19, 2010 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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Abstract
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Methods and apparatuses for acquiring/providing available channel information using Generic Advertisement Service (GAS) protocol in a wireless local area network (WLAN) are disclosed. AP (Access Point) station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space (e.g. Access Network Query Protocol (ANQP)). And, non-AP station can retrieve the information for available channels by transmitting a Generic Advertisement Service (GAS) initial request frame to the AP station, wherein the GAS initial request frame comprises an Advertisement Protocol Element whose element ID indicates the specific protocol, and receiving a GAS initial response frame comprising a White Space Map (WSM) the specific protocol. The WSM comprises one or more white space channel units, and each of the white space channel units comprises a channel number field indicating one of the available channels and a power constraint field indicating a maximum allowable power on the indicated channel.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for a first station to provide channel availability information to a second station in a wireless local area network (WLAN), the method comprising: receiving, by the first station from the second station, a request frame for requesting the channel availability information, the request frame including a generic advertisement service (GAS) protocol element; accessing, by the first station, a database to obtain information on available frequencies; a…
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Electricity · mapped topic
- H04W74/002Primary
Electricity · mapped topic
- H04W16/14Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9049686B2 cover?
- Methods and apparatuses for acquiring/providing available channel information using Generic Advertisement Service (GAS) protocol in a wireless local area network (WLAN) are disclosed. AP (Access Point) station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space (e.g. Access Network Query Protocol…
- Who is the assignee on this patent?
- Lg Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H04W74/002. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).