Kai Li

7730378, Jun 1, 2010

Jun 26, 2007

11/768585

Kai Li - New York NY, US
Guosen Yue - Plainsboro NJ, US
Xiaodong Wang - New York NY, US
Mohammad Madihian - Plainsboro NJ, US

NEC Laboratories America, Inc. - Princeton NJ

H03M 13/00

714755, 714781

An encoder includes an outer repetition encoder, an interleaver for permuting encoding from said outer repetition encoder; and an inner encoder for encoding information from the interleaver to provide a repeat zigzag-Hadamard code. In an exemplary embodiment, a common bit of a zigzag-Hadamard segment of encoding from said inner encoder is a repetition of a last parity bit of a previous zigzag-Hadamard segment of encoding from said inner encoder and said common bit is punctured.

7751491, Jul 6, 2010

Jun 26, 2007

11/768591

Kai Li - New York NY, US
Guosen Yue - Plainsboro NJ, US
Xiaodong Wang - New York NY, US
Mohammad Madihian - Plainsboro NJ, US

NEC Laboratories America, Inc. - Princeton NJ

H04L 5/12

375262, 375240, 375341, 714794, 714795

A method for selecting a signal to noise ratio for a communications code includes obtaining extrinsic information transfer (EXIT) information for a repeat-zigzag Hadamard (RZH) code responsive to a Hadamard order and a signal to noise ratio, determining code parameters for an irregular repeat zigzag Hadamard (IRZH) code for a corresponding code rate in response to the obtained EXIT values, and repeating the step of obtaining the EXIT information for a different signal to noise ratio if the corresponding code rate is other than a selected rate. The corresponding code rate is related to a bit error rate. In a preferred embodiment, the step of obtaining EXIT information includes one of obtaining an EXIT curve for repeat-zigzag Hadamard code by Monte Carlo simulation using serial decoding or obtaining an EXIT function for parallel decoding of the repeat-zigzag Hadamard code by using equations.

7924951, Apr 12, 2011

Dec 14, 2007

11/957409

Xiaodong Wang - New York NY, US
Kai Li - New York NY, US

The Trustees of Columbia University in the City of New York - New York NY

H04L 27/06
H04L 23/02

375341, 375262

Methods and systems for digital wireless communication are provided.

8169885, May 1, 2012

Dec 4, 2007

11/999226

Kai Li - New York NY, US
Xiaodong Wang - New York NY, US
Mohammad Madihian - Plainsboro NJ, US

NEC Laboratories America, Inc. - Princeton NJ

H04J 11/00

370203

A cross-layer optimization framework for designing of multi-radio/multi-channel wireless mesh networks with network coding to support multiple unicast applications is used. A column-generation-based primal-dual method is used to solve the optimization problem. For network-layer formation, a code construction scheme based on linear programming is used. Delay constraints are imposed on the network code construction so the possible impact of the extra decoding delay to the upper-layer Transmission Control Protocol/Internet Protocol (TCP/IP) performance may be reduced without changing the upper-layer protocols.

20130153298, Jun 20, 2013

Feb 19, 2010

13/577549

Philip J. Pietraski - Huntington Station NY, US
Rui Yang - Greenlawn NY, US
Kai Li - Flushing NY, US
Carl Wang - Melville NY, US
Tao Deng - Roslyn NY, US
Samian Kaur - Plymouth Meeting PA, US
Erdem Bala - Farmingdale NY, US
Ravikumar V. Pragada - Collegeville PA, US

INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE

E21B 47/022
E21B 7/04

175 45, 33302, 33304

A wireless communication network and method are described for enhancing cell-edge performance of a wireless transmit/receive unit (WTRU). The WTRU may establish a connection with a plurality of sites via respective downlinks (DLs). Each DL may include at least one DL component carrier (CC) that operates on a frequency that is the same or different than one or more of the other CCs. The sites may manipulate their transmit power for a particular CC operating frequency such that the distance from a particular one of the sites to its cell boundary may become larger by increasing its transmit power on the particular frequency, and the distance from at least one of the other sites to its respective cell boundary may become smaller by decreasing its transmit power on the particular frequency. Thus, a coverage overlap between different CC frequencies may be created while maintaining a frequency reuse pattern of one.

20130176988, Jul 11, 2013

Feb 11, 2011

13/578735

Carl Wang - Melville NY, US
Kai Li - Flushing NY, US
Sasidhar Movva - Wheatley Heights NY, US
Philip Pietraski - Huntington Station NY, US
Samian Kaur - Plymouth Meeting PA, US
Ariela Zeira - Huntington NY, US

INTERDIGITAL TECHNOLOGY CORPORATION - Wilmington DE

H04W 36/08

370331

Splitting data in a wireless communications network. Data may be split to use multiple base stations for transmission to user equipment in order to improve the bandwith if a UE is on a cell edge, or may be split by user equipment for transmission to multiple base stations in order to improve handover. Data splitting may be performed at the Packet Data Convergence Protocol layer, at the Radio Link Control layer, or at the Media Access Control layer on user equipment or on a base station. Data may instead be split in a network node, such as in a serving gateway, in Yes order to reduce X2 interface load or delay carrier aggregation.

20200107276, Apr 2, 2020

Dec 2, 2019

16/700425

- Wilmington DE, US
Rui Yang - Greenlawn NY, US
Kai Li - Edison NJ, US
Carl Wang - Melville NY, US
Tao Deng - Roslyn NY, US
Samian Kaur - Plymouth Meeting PA, US
Erdem Bala - East Meadow NY, US
Ravikumar V. Pragada - Warrington PA, US

InterDigital Patent Holdings, Inc. - Wilmington DE

H04W 52/34
H04W 52/36
H04W 52/30
H04L 5/00
H04W 16/08
H04W 52/40
H04W 24/08
H04W 52/32
H04W 72/04

A wireless transmit/receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.

20170273036, Sep 21, 2017

Jun 2, 2017

15/612646

- Wilmington DE, US
Rui Yang - Greenlawn NY, US
Kai Li - Edison NJ, US
Carl Wang - Melville NY, US
Tao Deng - Roslyn NY, US
Samian Kaur - Plymouth Meeting PA, US
Erdem Bala - East Meadow NY, US
Ravikumar V. Pragada - Warrington PA, US

InterDigital Patent Holdings, Inc. - Wilmington DE

H04W 52/34
H04L 5/00
H04W 16/08
H04W 24/08
H04W 52/24
H04W 52/32
H04W 52/40
H04W 72/04
H04W 36/00
H04W 52/14
H04W 52/28

A wireless transmit/receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.