Taeyoon Kim from 11900 Hobby Horse Ct, Austin, TX 78758, age 55, Phone: 5128219155

Resumes

Principal Engineer

view source

Location:

Austin, TX

Industry:

Telecommunications

Work:

Samsung
Principal Engineer
Samsung Electronics
Senior Systems and Architect Engineer
Freescale Semiconductor 2006 - 2009
Senior Systems Engineer
Wmsg Freescale Semiconductor May 2006 - Aug 2006
Research Interns
Ncsg Freescale Semiconductor May 1, 2005 - Aug 1, 2005
Research Interns

Education:

The University of Texas at Austin 2003 - 2006
Doctorates, Doctor of Philosophy, Electronics, Communications Yonsei University
Yonsei University
Master of Science, Masters, Bachelors, Bachelor of Science, Electronics

Skills:

Mimo
Lte
Wcdma
Ofdm
Wimax
3Gpp
Hspa
Phy
Rf
Cdma
Algorithms
Simulations
Wireless
Labview
Embedded Systems
Signal Processing
Algorithm Design
Digital Signal Processors
Modems

Languages:

English

Taeyoon Kim

view source

Us Patents

Techniques For Reducing A Cell Identification Falsing Rate In A Wireless Communication System
view source
US Patent:

7912083, Mar 22, 2011
Filed:

Oct 1, 2007
Appl. No.:

11/865341
Inventors:

James W. McCoy - Austin TX, US
Taeyoon Kim - Austin TX, US
Liying Song - Auburn AL, US
Assignee:

Freescale Semiconductor, Inc. - Austin TX
International Classification:

H04J 3/00
US Classification:

370464
Abstract:

A technique of operating a wireless communication device includes selecting, from a primary sequence group that includes respective primary sequences, one of the respective primary sequences as a first portion of a cell identification (ID). In this case, the respective primary sequences are each associated with respective secondary sequence subgroups included in a secondary sequence group. Each of the respective secondary sequence subgroups include secondary sequences. One of the secondary sequences is selected (from one of the respective secondary sequence subgroups that is associated with the selected one of the respective primary sequences) for a second portion of the cell ID. At least some of the secondary sequences are only included in one of the respective secondary sequence subgroups. The first portion of the cell ID is encoded on a first downlink waveform that is to be transmitted and the second portion of the cell ID is encoded on a second downlink waveform that is to be transmitted. The first and second downlink waveforms are then transmitted.

Method And Device For Operating A Precoded Mimo System
view source
US Patent:

8102931, Jan 24, 2012
Filed:

Sep 29, 2006
Appl. No.:

11/529311
Inventors:

Taeyoon Kim - Austin TX, US
Jayesh H. Kotecha - Austin TX, US
Assignee:

Apple Inc. - Cupertino CA
International Classification:

H04B 7/02
H04L 1/02
US Classification:

375267, 375316, 375136
Abstract:

A method is provided for generating precoder data (), comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals (); obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals (); obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel (); constraining one or more system performance parameters (); and determining first and second precoder diagonal values (wand w) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters ().

Techniques For Improving Channel Estimation And Tracking In A Wireless Communication System
view source
US Patent:

8238482, Aug 7, 2012
Filed:

Oct 14, 2008
Appl. No.:

12/250613
Inventors:

Ning Chen - Austin TX, US
Ahsan U. Aziz - Austin TX, US
Leo G. Dehner - Austin TX, US
Taeyoon Kim - Austin TX, US
Assignee:

Apple Inc. - Cupertino CA
International Classification:

H04L 27/06
US Classification:

375340, 375316, 375337
Abstract:

A technique for performing channel tracking and/or channel estimation in a wireless communication device includes receiving a reference signal and one or more non-error propagation physical channel signals. In general, the one or more non-error propagation physical channel signals must be correctly decoded before a data channel can be decoded. Channel tracking and/or channel estimation are/is then performed based on the reference signal and at least one of the one or more non-error propagation physical channel signals.

Multi-Code Multi-Carrier Code Division Multiple Access (Cdma) System And Method
view source
US Patent:

20050249298, Nov 10, 2005
Filed:

Apr 28, 2005
Appl. No.:

11/118822
Inventors:

Taeyoon Kim - Austin TX, US
Jaeweon Kim - Austin TX, US
Jeffrey Andrews - Austin TX, US
Theodore Rappaport - Austin TX, US
International Classification:

H04L027/28
US Classification:

375260000
Abstract:

A multi-code multicarrier CDMA system and method for communicating data by transforming a stream of data into a plurality of code sequences selected from a code book by associating symbols of the data stream with the code sequences of the code book, wherein the codebook includes M code sequences and each of the code sequences has a length of N data symbols, copying each of the code sequences onto one or more of a plurality of subcarriers, transmitting the plurality of subcarriers, receiving the plurality of transmitted subcarriers, demodulating the received subcarriers to result in the code sequences, transforming the code sequences back into the stream of data based upon the associations between the code sequences of the code book and the symbols of the data stream, changing at least one of the number M and lengths N of the code sequences in the code book.

System And Method For Generating Mimo Signals
view source
US Patent:

20080101494, May 1, 2008
Filed:

Oct 31, 2006
Appl. No.:

11/589874
Inventors:

Jayesh H. Kotecha - Austin TX, US
Taeyoon Kim - Austin TX, US
International Classification:

H04L 1/02
US Classification:

375267
Abstract:

A method () is provided for processing signals in a multiple-input/multiple-output system (). The method comprises: receiving a stream of B data bits (); modulating the B data bits into J data symbols chosen from a set symbol constellation (); converting the J data symbols into L preprecoded symbols based on a preprecoder function (); encoding the L preprecoded symbols into M symbol streams, each having K encoded symbols, based on a space-time code (); and providing the M symbol streams on one or more output lines. In this method, B, J, K, L, and M are integers.

Single Carrier Frequency Division Multiple Access Receiver For Mimo Systems
view source
US Patent:

20080192854, Aug 14, 2008
Filed:

Feb 9, 2007
Appl. No.:

11/673163
Inventors:

Taeyoon Kim - Austin TX, US
James W. McCoy - Austin TX, US
Oghenekome F. Oteri - Austin TX, US
International Classification:

H04B 7/02
US Classification:

375267
Abstract:

A method for processing symbols transmitted via a first plurality of antennas and received via a second plurality of antennas is provided. The method includes receiving symbol streams corresponding to a sub-carrier frequency from each of the second plurality of antennas. The method further includes generating estimated symbol streams for the sub-carrier frequency for each of the first plurality of antennas. The method further includes selecting an estimated symbol stream corresponding to one of the first plurality of antennas for interference cancellation. The method further includes transforming the selected symbol stream into time domain and decoding the selected symbol stream. The method further includes transforming the decoded symbol stream into frequency domain. The method further includes performing interference cancellation using the decoded symbol stream.

Techniques For Radio Link Problem And Recovery Detection In A Wireless Communication System
view source
US Patent:

20100110901, May 6, 2010
Filed:

Nov 3, 2008
Appl. No.:

12/263998
Inventors:

Ian Wong - Austin TX, US
Taeyoon Kim - Austin TX, US
International Classification:

G06F 11/00
US Classification:

370242
Abstract:

A technique for radio link detection in a wireless communication system includes estimating a first error rate of an indicator channel. In this case, the indicator channel includes an indication of a number of symbols in a control channel. A second error rate of the control channel is also estimated. The first and second error rates are then combined to provide a performance metric. Based on the performance metric, a determination is made as to whether a radio link problem exists.

Method And Device For Operating A Precoded Mimo System
view source
US Patent:

20120128044, May 24, 2012
Filed:

Jan 23, 2012
Appl. No.:

13/356441
Inventors:

Taeyoon Kim - Austin TX, US
Jayesh H. Kotecha - Austin TX, US
International Classification:

H04B 15/00
H04B 1/38
H04B 1/10
H04B 1/02
H04B 17/00
US Classification:

375219, 375295, 375224, 375227, 375296
Abstract:

A method is provided for generating precoder data (), comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals (); obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals (); obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel (); constraining one or more system performance parameters (); and determining first and second precoder diagonal values (wand w) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters ().