Source: http://www.google.ca/patents/US9215599
Timestamp: 2018-01-17 13:29:42
Document Index: 222612166

Matched Legal Cases: ['Application No. 61', 'Application No. 61', 'Application No. 10', 'Application No. 10', 'Application No. 11740042', 'Application No. 201180008133']

Patent US9215599 - Method and apparatus of transmit power control in wireless local area network - Google Patents
A method and apparatus of controlling a transmit power in a wireless local area network is provided. A wireless device operated in a TV White Space transmits a white space map indicating a list of available channels, and transmits an extended power constraint indicating a plurality of transmission channels...http://www.google.ca/patents/US9215599?utm_source=gb-gplus-sharePatent US9215599 - Method and apparatus of transmit power control in wireless local area network
Publication number US9215599 B2
Application number US 13/940,324
Also published as CA2788756A1, CA2788756C, CN102742333A, EP2532196A2, EP2532196A4, US8509173, US9402239, US20110188486, US20130303229, US20160073358, WO2011096746A2, WO2011096746A3
Publication number 13940324, 940324, US 9215599 B2, US 9215599B2, US-B2-9215599, US9215599 B2, US9215599B2
Patent Citations (27), Non-Patent Citations (3), Classifications (15)
US 9215599 B2
1. A method for controlling a transmit power of a wireless device in a wireless local area network, the method comprising:
receiving a frame comprising a transmit power information element comprising one or more maximum transmit power fields; and
determining a local maximum transmit power from the transmit power information element,
wherein the transmit power information element comprises maximum transmit power information for one or more channel bandwidths,
wherein each of the one or more maximum transmit power fields defines a maximum transmit power for each of the one or more channel bandwidths, and
wherein the transmit power information element comprises maximum transmit power information for all channel bandwidths supported by a basic service set to which the wireless device is associated.
receiving another frame comprising one or more channel power constraint fields,
wherein each of the one or more channel power constraint fields indicates an allowed maximum transmission power for a specific channel number.
3. The method of claim 1, wherein the transmit power information element comprises at least one of:
a first maximum transmit power field defining maximum transmit power allowable in a bandwidth of a first size;
a second maximum transmit power field defining maximum transmit power allowable in a bandwidth of a second size; and
a third maximum transmit power field defining maximum transmit power allowable in a bandwidth of a third size.
4. The method of claim 1, wherein the frame comprising the transmit power information element comprises a beacon frame or a probe response frame.
5. The method of claim 1, wherein the frame comprising the transmit power information element is advertised by an access point.
6. The method of claim 1, wherein the transmit power information element is used for transmit power control.
7. A wireless device for controlling a transmit power in a wireless local area network, the wireless device comprising:
receive a frame comprising a transmit power information element comprising one or more maximum transmit power fields; and
determine a local maximum transmit power from the transmit power information element,
wherein each of the one or more maximum transmit power fields defines a maximum transmit power for each of the one or more channel bandwidths, and wherein the transmit power information element comprises maximum transmit power information for all channel bandwidths supported by a basic service set to which the wireless device is associated.
the processor is further configured to receive another frame comprising one or more channel power constraint fields; and
each of the one or more channel power constraint fields indicates an allowed maximum transmission power for a specific channel number.
9. The wireless device of claim 7, wherein the transmit power information element comprises at least one of:
10. The wireless device of claim 7, wherein the frame comprising the transmit power information element comprises a beacon frame or a probe response frame.
11. The wireless device of claim 7, wherein the frame comprising the transmit power information element is advertised by an access point.
12. The wireless device of claim 7, wherein the transmit power information element is used for transmit power control.
This application is a continuation of U.S. patent application Ser. No. 13/018,580, filed on Feb. 1, 2011, which claims the benefit of priority of U.S. Provisional Application No. 61/300,805, filed on Feb. 2, 2010; U.S. Provisional Application No. 61/321,508, filed on Apr. 7, 2010; Korean Patent Application No. 10-2010-0066804, filed on Jul. 12, 2010; and Korean Patent Application No. 10-2010-0104910, filed on Oct. 26, 2010, the entire disclosure of each of which is incorporated by reference in its entirety herein for all purposes.
US8203987 21 Mar 2008 19 Jun 2012 Ntt Docomo, Inc. Mobile communications system, base station apparatus, user apparatus, and method
US20040017905 17 Dec 2002 29 Jan 2004 3Com Corporation Prepaid billing support for simultaneous communication sessions in data networks
US20040127240 27 Dec 2002 1 Jul 2004 Sheung Li System and method of conforming wireless devices to worldwide regulations
US20040180652 4 Mar 2004 16 Sep 2004 Samsung Electronics Co., Ltd. Method of controlling power of wireless access node in a wireless LAN system
US20050059422 14 Jul 2004 17 Mar 2005 Interdigital Technology Corporation Method and system for transferring transmit power control information between network management entities in a wireless communication system
US20060018284 18 Jul 2005 26 Jan 2006 Interdigital Technology Corporation Method and apparatus for storing mobile station physical measurements and MAC performance statistics in a management information base of an access point
US20070049239 9 Aug 2006 1 Mar 2007 Samsung Electronics Co., Ltd. Method and apparatus for controlling power consumption of portable devices connected to wireless network
US20070178927 25 May 2006 2 Aug 2007 Fernandez-Corbaton Ivan J Centralized medium access control algorithm for CDMA reverse link
US20080144582 17 Dec 2006 19 Jun 2008 Arnab Das Power-based rate signaling for cellular uplink
US20080304444 7 Jul 2005 11 Dec 2008 Koninklijke Philips Electronics, N.V. Enhanced Site Report for Low Latency Roaming By Passive Scanning in Ieee 802.11 Networks
US20090280748 7 May 2009 12 Nov 2009 Samsung Electronics Co., Ltd. Apparatus and method for enquiring channel condition information in cognitive radio wireless communication system
US20100118805 21 Mar 2008 13 May 2010 Ntt Docomo, Inc. Mobile communications system, base station apparatus, user apparatus, and method
US20100311452 9 Oct 2008 9 Dec 2010 Hang Li Method and apparatus for allocating radio resources in wireless communication system
US20110306375 9 Jun 2010 15 Dec 2011 Microsoft Corporation Transmitting data in a wireless white space network
US20120093092 19 Oct 2010 19 Apr 2012 Nokia Corporation Method and apparatus for radio channel management
CN101409921A 10 Oct 2007 15 Apr 2009 北京信威通信技术股份有限公司 Method for united distribution of channel and signal transmission parameter in radio communication system
CN101448308A 30 Dec 2008 3 Jun 2009 中兴通讯股份有限公司 Method for controlling physical uplink shared channel transmission power
JP2008506297A Title not available
JP2011520377A Title not available
KR20040081518A Title not available
KR20070025379A Title not available
WO2002091623A1 2 May 2002 14 Nov 2002 Koninklijke Philips Electronics N.V. Updating path loss estimation for power control and link adaption in ieee 802.11h wlan
WO2008123148A1 21 Mar 2008 16 Oct 2008 Ntt Docomo, Inc. Mobile communication system, base station device, and user device and method
WO2009039443A2 19 Sep 2008 26 Mar 2009 Qualcomm Incorporated Interference management utilizing power and attenuation profiles
1 European Search Report issued in European Patent Application No. 11740042.4 on Jul. 10, 2015.
2 International Search Report issued in counterpart International Application No. PCT/KR2011/000750 mailed Sep. 30, 2011.
3 Office Action dated Jun. 9, 2014, issued by the State Intellectual Property Office of China in Chinese Patent Application No. 201180008133.8.
International Classification H04W52/38, H04B7/216, H04W52/36, H04W52/24, H04W4/00, H04W72/00, H04W16/14
Cooperative Classification H04W52/346, H04W52/52, H04W52/367, H04W52/146, H04W16/14, H04W52/243, H04W52/36, H04W52/38