Jing Zhu

US Patent:

7388878, Jun 17, 2008

Filed:

Feb 14, 2005

Appl. No.:

11/058003

Inventors:

Liuyang Lily Yang - Portland OR, US
Xingang Guo - Portland OR, US
Jing Zhu - Hillsboro OR, US

International Classification:

H04Q 11/00

US Classification:

370447

Abstract:

Methods and apparatus for transmitting a signal having a first frame duration being correlated to a second frame duration are described herein.

US Patent:

7463644, Dec 9, 2008

Filed:

Mar 31, 2004

Appl. No.:

10/816434

Inventors:

Jing Zhu - Hillsboro OR, US
Xingang Guo - Portland OR, US
W. Steven Conner - Hillsboro OR, US
Liuyang Lily Yang - Portland OR, US
Mousumi M. Hazra - Beaverton OR, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04L 12/413

US Classification:

370445, 370437, 370455, 370463, 370349, 455134, 455135

Abstract:

Apparatuses and methods for dynamically adjusting carrier sensing threshold levels in a wireless, such as CSMA, system. A station may use the carrier sensing measurement made in normal CSMA operation to determine a threshold level for the local station, and transmit the determined level to other stations in the system. The station also receives similar information from other stations in the system and determines, based at least in part on the information received and the local determined threshold level, an optimal carrier sensing threshold level.

US Patent:

7526308, Apr 28, 2009

Filed:

Apr 28, 2005

Appl. No.:

11/118225

Inventors:

Xingang Guo - Portland OR, US
Jing Zhu - Hillsboro OR, US
Boris Ginzburg - Haifa, IL

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04B 7/00
H04Q 7/20

US Classification:

455522, 455 69, 455126, 4551271

Abstract:

Apparatuses and methods for determining and applying receiving sensitivity threshold and/or energy detection threshold values for one or more nodes of a wireless network cell are described herein.

US Patent:

7623494, Nov 24, 2009

Filed:

May 18, 2006

Appl. No.:

11/436257

Inventors:

Jing Zhu - Hillsboro OR, US
Boris Ginzburg - Haifa, IL

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04W 4/00
H04L 12/413

US Classification:

370333, 370445, 455511

Abstract:

Embodiments of adjustment of a clear channel assessment threshold are presented herein.

US Patent:

7684758, Mar 23, 2010

Filed:

Nov 27, 2006

Appl. No.:

11/605085

Inventors:

Jing Zhu - Hillsboro OR, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04B 1/00

US Classification:

455 631, 4551142, 4552781, 455296, 37524027, 370333

Abstract:

A system and method of reducing interference in a wireless communication network is disclosed. The method comprises adapting a transmission power of a signal of a wireless communication device when a clear channel assessment threshold equals a predetermined limit and a packet error rate exceeds a predetermined packet error rate threshold. In particular, the method includes increasing the transmission power of the signal when the clear channel assessment threshold equals a lower limit and the packet error rate exceeds an upper packet error rate threshold and decreasing the transmission power of the signal when the clear channel assessment threshold equals an upper limit and the packet error rate falls below a lower packet error rate threshold.

US Patent:

7720440, May 18, 2010

Filed:

May 18, 2006

Appl. No.:

11/436334

Inventors:

Jing Zhu - Hillsboro OR, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04B 1/00
H04B 15/00

US Classification:

455 631, 455 6711, 455 6713, 455522, 370328, 370338, 370455

Abstract:

Embodiments of distributed coordination of a clear channel assessment threshold are presented herein.

US Patent:

7817575, Oct 19, 2010

Filed:

Oct 10, 2007

Appl. No.:

11/870010

Inventors:

Jing Zhu - Hillsboro OR, US
Yang Xue - Portland OR, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04J 1/16
H04B 7/212
H04L 12/413

US Classification:

370252, 370442, 370448

Abstract:

Disclosed are a method and a computer program product for achieving fairness in utilization of a channel in a network. The network includes plurality of stations such that at least one station of the plurality of stations includes at least one radio. The at least one radio may fail to access the channel even when the channel is available for performing transmission. The method includes determining a number of idle slots occurred at the channel during a disruption period when the at least one radio is unavailable for transmission. The number of idle slots occurred during the disruption period may be accumulated as a credit. Based on the accumulated credit, an initial value of a backoff counter of the at least one station may be reset. The reset initial value of the backoff counter enables the at least one radio to utilize the accumulated idle slots for next transmission.

US Patent:

7817748, Oct 19, 2010

Filed:

Jun 12, 2007

Appl. No.:

11/761389

Inventors:

Jing Zhu - Hillsboro OR, US
Qiang Li - Hillsboro OR, US
Qinghua Li - Sunnyvale CA, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H03K 9/00

US Classification:

375316

Abstract:

An adaptive receiver algorithm is disclosed, for use in multiple-input-multiple-output orthogonal frequency division multiplexing systems. The adaptive receiver algorithm selectively chooses either the maximum ratio combining technique or the minimum mean square error technique, for optimum receiver performance, depending on the characteristics of the wireless environment.