Texas Instruments - Dallas/Fort Worth Area since Feb 2013
Member Group Technical Staff
Texas Instruments - Dallas/Fort Worth Area since Oct 2008
Standards and Systems Engineer
3G R&D, Texas Instruments Inc. Jan 2006 - Sep 2008
Communications Systems Engineer
Education:
University of Notre Dame 2003 - 2006
PhD
University of Notre Dame 2000 - 2002
MS, Electrical Engineering
Obafemi Awolowo University 1993 - 1998
Bsc, Electrical Engineering
Skills:
Lte 3Gpp Wireless Hspa Simulations Signal Processing Algorithms Hsdpa System Design Rf Soc Mimo Systems Design Ofdm Ran Matlab Wireless Technologies High Speed Downlink Packet Access Orthogonal Frequency Division Multiplexing System on A Chip
Pierre Bertrand - Antibes, FR Zukang Shen - Richardson TX, US Eko N. Onggosanusi - Allen TX, US Sandeep Bhadra - Addison TX, US Anthony Ekpenyong - Dallas TX, US Tarik Muharemovic - Dallas TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04B 7/14 H04W 4/00 H04Q 7/20
US Classification:
370315, 370328, 370348, 455450, 375260
Abstract:
This invention extends the coverage and improves the capacity of wireless communication networks using relay nodes. The relay nodes are wirelessly connected to the base station. The base station uses the same radio access technology for a link between the base station and user equipment and between the base station and the relay node. The relay node uses the same radio access technology for a link between the base station and the relay node and between the relay node and the user equipment. The relay node supports at least a Physical Layer (PHY), a Medium Access Control (MAC) sub-layer and a Radio Link Control (RLC) sub-layer protocol.
Zukang Shen - Allen TX, US Pierre Bertrand - Antibes, FR Sandeep Bhadra - Addison TX, US Eko N. Onggosanusi - Allen TX, US Anthony Ekpenyong - Dallas TX, US Tarik Muharemovic - Forest Hills NY, US
This invention is a method for extending the coverage and/or improving the capacity of wireless communication networks comprising inserting a Relay Node (RN) in the Radio Access Network (RAN). The relay node relays the signal between the Base Station node (eNB) and the User Equipment (UE). The relay node is wirelessly connected to the base station. The base station uses the same radio access technology (RAT) for the base station to user equipment link and the base station to relay node link. The relay node uses the same radio access technology for the base station to relay node link and the relay node to user equipment link. The relay node is non-transparent and seen as base station by the user equipment.
Tarik Muharemovic - Dallas TX, US Zukang Shen - Richardson TX, US Anthony Ekpenyong - Dallas TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04B 7/00 H04B 17/00 H04J 3/06 H04J 3/00
US Classification:
455524, 455 6711, 370345, 370350
Abstract:
This invention measures the propagation delay τbetween the user equipment and a first cooperating unit and the propagation delay τbetween the user equipment and a second cooperating unit. These propagation delays are used to compute a timing advance amount to the user equipment to enable coordinated multi-point reception. In a first embodiment one cooperating unit receives a function of the propagation delay, computes the timing advance amount and transmits a timing advance command to the user equipment. In a second embodiment a central unit performs these operations.
Physical Downlink Shared Channel Muting On Cell-Specific Reference Symbols Locations For Of Non-Serving Cells
Vikram Chandrasekhar - Dallas TX, US Eko N. Onggosanusi - Allen TX, US Anthony Ekpenyong - Farmers Branch TX, US Runhua Chen - Dallas TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04L 12/58
US Classification:
370252, 370329, 455450
Abstract:
The primary serving base station transmits PDSCH with zero energy on the inter-cell CRS resource element location. This is called mute PDSCH. Within the first Physical Resource Block (PRB ), the RE positions in the frequency domain are indexed between and. The muted PDSCH RE positions per antenna port are computed using the cell IDs of all CoMP cells other than the cell ID i. The invention defines the Orthogonal Frequency Division Multiplexing (OFDM) symbols in which muting occurs.
Predecoding For Joint Processing Coordinated Multi-Point Transmission
Eko N. Onggosanusi - Allen TX, US Tarik Muharemovic - Dallas TX, US Anthony Ekpenyong - Dallas TX, US Zukang Shen - Richardson TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04W 72/04
US Classification:
455450
Abstract:
This invention is a method of predecoding for joint processing coordinated multi-point transmission. The invention identifies for a particular transmission the cooperating point and the transmit antenna. The invention selects a code by reference to a selected one of a super-cell codebook for each combination of cooperating point and transmit antenna and a multi-cell codebook for each transmit antenna regardless of the cooperating point.
Transmission Modes And Signaling For Uplink Mimo Support Or Single Tb Dual-Layer Transmission In Lte Uplink
Runhua Chen - Dallas TX, US Anthony Ekpenyong - Farmers Branch TX, US Eko N. Onggosanusi - Allen TX, US
Assignee:
TEXAS INSTRUMENTS INCORPORATED - Dallas TX
International Classification:
H04W 72/04
US Classification:
370329
Abstract:
This invention is a method of wireless telephony. A bases station configures a user equipment for single-antenna port or multi-antenna port operation via Radio Resource Control (RRC) signaling including a 5-bit MCS-RV and 1-bit NDI for the second codeword (CW1) are needed for the DCI format 4.
Cfi Signaling For Heterogeneous Networks With Multiple Component Carriers In Lte-Advanced
Vikram Chandrasekhar - Dallas TX, US Anthony Ekpenyong - Farmers Branch TX, US Runhua Chen - Dallas TX, US
Assignee:
TEXAS INSTRUMENTS INCORPORATED - Dallas TX
International Classification:
H04W 24/00 H04W 52/24
US Classification:
370241
Abstract:
This invention mitigates interference in wireless telephony in heterogeneous networks having a macro base station and a low power base station. This invention attempts to avoid cross carrier scheduling on an anchor carrier and a non-anchor carrier. If cross carrier scheduling is unavoidable, then this invention attempts: (1) semi-statically signalling a CFI value on a cross-scheduled component carrier; (2) semi-statically signalling a channel quality information (CSI) value on a cross-scheduled component carrier setting a Physical Hybrid ARQ Indicator CHannel (PHICH) value to be maximum; or (3) semi-statically signalling a channel quality information (CSI) value on a cross-scheduled component carrier using Physical Control Format Indicator CHannel (PCFICH) power boosting on cross-scheduled component carriers (CC).
Pierre Bertrand - Antibes, FR Anthony Ekpenyong - Farmers Branch TX, US
Assignee:
TEXAS INSTRUMENTS INCORPORATED - Dallas TX
International Classification:
H04J 11/00
US Classification:
370210
Abstract:
A wireless communication receiver including a serial to parallel converter receiving an radio frequency signal, a fast Fourier transform device connected to said serial to parallel converter converting Ncorresponding serial signals into a frequency domain; an EZC root sequence unit generating a set of root sequence signals; an element-by-element multiply unit forming a set of products including a product of each of said frequency domain signals from said fast Fourier transform device and a corresponding root sequence signal, an N-length IDFT unit performing a group cyclic-shift de-multiplexing of the products and a discrete Fourier transform unit converting connected cyclic shift de-multiplexing signals back to frequency-domain.
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