Method for setting operating channel in white space band and device therefor

Patent metadata

Field	Value
Publication number	US-9510324-B2
Application number	US-201314373093-A
Country	US
Kind code	B2
Filing date	Jan 18, 2013
Priority date	Jan 18, 2012
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

Disclosed are a method for setting an operating channel in a white space band and a device therefor. Particularly, a method for enabling a first device to set an operating channel in a white space band comprises the steps of: acquiring information on an available TV channel from a geo-location database; and setting an operating channel on the basis of the information on the available TV channel, wherein a center frequency of the operating channel can be set differently according to a TV channel used by an incumbent device among TV channels adjacent to the TV channel on which the operating channel is set.

First claim

What is claimed is:

1. A method of configuring an operating channel, which is configured by a first device on a white space band, the method comprising:
obtaining an information on an available television (TV) channel from a geo-location database; and
configuring the operating channel based on the information on the available TV channel,
wherein a center frequency of the operating channel is set differently depending on a first TV channel used by an incumbent device among TV channels adjacent to a second TV channel having the operating channel configured therein,
wherein the center frequency of the operating channel is spaced apart from a center frequency of the second TV channel by a prescribed frequency in a direction opposite to the first TV channel, and
wherein the prescribed frequency is determined as a bandwidth of the second TV channel, and a minimum frequency bandwidth supported by the operating channel.

2. The method of claim 1 , wherein the prescribed frequency is determined as (N−B)/2, where:
N is a bandwidth of the second TV channel, and
B indicates a minimum frequency bandwidth supported by the operating channel.

3. The method of claim 1 , further comprising periodically transmitting an information on a bandwidth of the configured operating channel to a second device through a channel having a minimum frequency bandwidth supported by the operating channel.

4. In a first device for configuring an operating channel on a white space band, an apparatus comprising:
an RF (radio frequency) transceiver configured to transceive a wireless signal; and
a processor configured to:
obtain an information on an available television (TV) channel from a geo-location database; and
configure the operating channel based on the information on the available TV channel,

wherein a center frequency of the operating channel is set differently depending on a first TV channel used by an incumbent device among TV channels adjacent to a second TV channel having the operating channel configured therein,
wherein the center frequency of the operating channel is spaced apart from a center frequency of the second TV channel by a prescribed frequency in a direction opposite to the first TV channel, and
wherein the prescribed frequency is determined as a bandwidth of the second TV channel and a minimum frequency bandwidth supported by the operating channel.

5. The apparatus of claim 4 , wherein the prescribed frequency is determined as (N−B)/2, where:
N is a bandwidth of the second TV channel, and
B indicates a minimum frequency bandwidth supported by the operating channel.

6. The apparatus of claim 4 , wherein the processor is further configured to periodically transmit an information on a bandwidth of the configured operating channel to a second device through a channel having a minimum frequency bandwidth supported by the operating channel.

Assignees

• Lg Electronics Inc

Inventors

• Lee Wookbong
• Han Seunghee
• Kim Suhwook
• Seok Yongho
• Kwak Jinsam
• Chun Jinyoung
• Song Jaehyung

Classifications

• H04W72/54

  based on quality criteria · CPC title

• H04W72/02 Primary

  Selection of wireless resources by user or terminal · CPC title

• H04W16/14 Primary

  Spectrum sharing arrangements {between different networks} · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W48/16

  Discovering, processing access restriction or access information · CPC title