Lin Jie F Cai

US Patent:

20130128831, May 23, 2013

Filed:

Nov 19, 2012

Appl. No.:

13/681093

Inventors:

Bin Chen - Schaumburg IL, US
Lin Cai - Schaumburg IL, US

Assignee:

FUTUREWEI TECHNOLOGIES, INC. - Plano TX

International Classification:

H04W 72/04

US Classification:

370329

Abstract:

A method for operating an access point includes identifying one or more stations to receive a transmission from the access point, and generating a traffic indicator map (TIM) for the one or more stations identified, the TIM in accordance with a TIM generating rule, the TIM identifying at least an offset length and a number of entries. The method further includes broadcasting a beacon carrying the TIM to the one or more stations identified, the one or more stations configured to decode the beacon according to the TIM generating rule.

US Patent:

20130128867, May 23, 2013

Filed:

Oct 10, 2012

Appl. No.:

13/649082

Inventors:

Bin Chen - Schaumburg IL, US
Lin Cai - Schaumburg IL, US

Assignee:

FUTUREWEI TECHNOLOGIES, INC. - Plano TX

International Classification:

H04W 72/04

US Classification:

370336

Abstract:

A method for operating an access point includes receiving information from a first station configured to operate in a non-transmit-indicator-map (TIM) mode, and determining if downlink data intended for the first station is available at the access point. The method also includes transmitting at least one of the downlink data intended for the first station to the first station, a data indicator indicating that the downlink data intended for the first station is available at the access point, information indicating downlink data is available for the first station, and a time indicator indicating a specific time when the downlink data intended for the first station will be sent to the first station.

US Patent:

20130142095, Jun 6, 2013

Filed:

Nov 30, 2012

Appl. No.:

13/690950

Inventors:

Bin Chen - Schaumburg IL, US
Lin Cai - Schaumburg IL, US

Assignee:

FUTUREWEI TECHNOLOGIES, INC. - Plano TX

International Classification:

H04W 28/02
H04W 52/02

US Classification:

370311, 370338

Abstract:

A system and method are provided for traffic signaling in wireless or sensor networks. The system and method use information or bits in a Signal Field (SIG) of Physical Layer (PHY) preamble in a packet to provide traffic control information. An embodiment method implemented by a network component comprises indicating a traffic direction and a traffic type for traffic control in a SIG in a frame and transmitting the frame including the SIG. Another method comprises receiving in a frame a SIG for traffic control that indicates a transmission type and decoding the SIG field to determine whether to process remaining information in the frame if the frame comprises data payload or a Media Access Control (MAC) header.

US Patent:

20130155976, Jun 20, 2013

Filed:

Dec 17, 2012

Appl. No.:

13/717618

Inventors:

George Calcev - Hoffman Estates IL, US
Lin Cai - Schaumburg IL, US
Lukasz Krzymien - Rolling Meadows IL, US

Assignee:

FutureWei Technologies, Inc. - Plano TX

International Classification:

H04W 72/04

US Classification:

370329

Abstract:

A method for transmitting a transmission to a station in a wireless network includes transmitting a preamble of the transmission to the station using a first channel with a first bandwidth, the preamble including a first indicator indicating a second channel with a second bandwidth, the second bandwidth greater than the first bandwidth, and transmitting a data portion of the transmission to the station using the second channel with the second bandwidth.

US Patent:

20130182592, Jul 18, 2013

Filed:

Jan 14, 2013

Appl. No.:

13/740866

Inventors:

Bin Chen - Schaumburg IL, US
Lin Cai - Schaumburg IL, US
Lukasz Krzymien - Rolling Meadows IL, US

Assignee:

FUTUREWEI TECHNOLOGIES, INC. - Plano TX

International Classification:

H04W 24/00

US Classification:

370252

Abstract:

A method for measuring delay in a wireless fidelity (WiFi) network includes measuring a delay associated with transmission of a packet through the WiFi network in response to a measurement request from a requesting device, and contending for access to a communications channel of the WiFi network after measurement of the delay. The method also includes transmitting the delay as measured to the access point using the communications channel after a successful contention.

US Patent:

20130230028, Sep 5, 2013

Filed:

Mar 4, 2013

Appl. No.:

13/784555

Inventors:

Lin Cai - Schaumburg IL, US
Bin Chen - Schaumburg IL, US
Lukasz Krzymien - Rolling Meadows IL, US

International Classification:

H04W 72/12

US Classification:

370336

Abstract:

The hidden node problem can be avoided by scheduling stations in different sectors to perform transmissions during different time periods. Sectorized scheduling can be communicated to stations through transmission of beamformed beacon signals at the beginning of respective time periods. For instance, a first beamformed beacon signal may be transmitted to stations in a first sector at the beginning of a first time period, while a second beamformed beacon signal may be transmitted to stations in a second sector at the beginning of a second time period.

US Patent:

20130070627, Mar 21, 2013

Filed:

Sep 20, 2012

Appl. No.:

13/623769

Inventors:

George Calcev - Hoffman Estates IL, US
Lin Cai - Schaumburg IL, US

Assignee:

FUTUREWEI TECHNOLOGIES, INC. - Plano TX

International Classification:

H04W 74/00
H04W 72/04
H04W 24/00
H04W 4/06

US Classification:

370252, 370328, 370312, 370329

Abstract:

A method for transmitting to an access point includes receiving a selection condition and a selection contention period from the access point, and comparing the selection condition to a selection parameter. The method also includes contending for use of a transmission medium during the selection contention period if the selection parameter meets the selection condition.

US Patent:

20180270858, Sep 20, 2018

Filed:

May 17, 2018

Appl. No.:

15/982849

Inventors:

- Plano TX, US
George Calcev - Hoffman Estates IL, US
Lin Cai - Schaumburg IL, US

International Classification:

H04W 74/08
H04W 28/04
H04W 72/12
H04W 74/00

Abstract:

A method for transmitting to an access point includes receiving a selection condition and a selection contention period from the access point, and comparing the selection condition to a selection parameter. The method also includes contending for use of a transmission medium during the selection contention period if the selection parameter meets the selection condition.