Patents by Inventor Eko N. Onggosanusi

Eko N. Onggosanusi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090180416
    Abstract: A method of power saving for a wireless transceiver (FIGS. 1 and 2) is disclosed. The transceiver has an active power mode (504) and a reduced power mode (510). The transceiver is operated in the reduced power mode (510) and monitors transmissions from a remote wireless transmitter while in the reduced power mode. The transceiver identifies a transmission from the remote wireless transmitter by a transceiver identity included in the transmission (FIG. 6. UE identification). The transceiver transitions to the active power mode (512) in response to identifying the transmission.
    Type: Application
    Filed: March 24, 2009
    Publication date: July 16, 2009
    Inventors: Timothy M. Schmidl, Eko N. Onggosanusi, Anand G. Dabak, Aris Papasakellariou
  • Publication number: 20090180563
    Abstract: A method of power saving for a wireless transceiver (FIGS. 1 and 2) is disclosed. The transceiver has an active power mode (504) and a reduced power mode (510). The transceiver is operated in the reduced power mode (510) and monitors transmissions from a remote wireless transmitter while in the reduced power mode. The transceiver identifies a transmission from in the remote wireless transmitter by a transceiver identity included in the transmission (FIG. 6, UE identification). The transceiver transitions to the active power mode (512) in response to identifying the transmission.
    Type: Application
    Filed: March 24, 2009
    Publication date: July 16, 2009
    Inventors: Timothy M. Schmidl, Eko N. Onggosanusi, Anand G. Dabak, Aris Papasakellariou
  • Patent number: 7561618
    Abstract: A system comprising a plurality of adaptive equalizers adapted to couple to a plurality of receive antennas, each of the antennas capable of receiving a multipath delay profile estimate (MDPE), control logic interconnecting at least some of the adaptive equalizers, and a control mechanism that, according to different MDPEs, configures at least some of the adaptive equalizers and control logic.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: July 14, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: Antonio F. Mondragon-Torres, Steven P. Pekarich, Timothy M. Schmidl, Aris Papasakellariou, Anand G. Dabak, Eko N. Onggosanusi, Manish Goel
  • Publication number: 20090154588
    Abstract: An electronic device includes a first circuit (111) operable to generate at least a first and a second channel quality indicator (CQI) vector associated with a plurality of subbands for each of at least first and second spatial codewords respectively and generate a first and a second reference CQI for the first and second spatial codewords, and operable to generate a first and a second differential subbands CQI vector for each spatial codeword and generate a differential between the second reference CQI and the first reference CQI, and further operable to form a CQI report derived from the first and the second differential subbands CQI vector for each spatial codeword as well as the differential between the second reference CQI and the first reference CQI; and a second circuit (113) operable to initiate transmission of a signal communicating the CQI report. Other electronic devices, processes and systems are also disclosed.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 18, 2009
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Runhua Chen, Eko N. Onggosanusi
  • Publication number: 20090109909
    Abstract: Embodiments of the present disclosure provide a feedback generator, a feedback decoder and methods of operating a feedback generator and decoder. In one embodiment, the feedback generator is for use in user equipment and includes a CQI profile module configured to provide a differential channel quality indicator, wherein the differential channel quality indicator represents a difference between indices corresponding to allocatable channel quality indicators. The feedback generator also includes a transmit module that transmits the differential channel quality indicator. In one embodiment, the feedback decoder is for use in a base station and includes a receive module configured to receive a differential channel quality indicator.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 30, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Eko N. Onggosanusi, Runhua Chen
  • Publication number: 20090106619
    Abstract: A Hybrid Automatic Retransmission Request (H-ARQ) technique is provided for Multi-Input Multi-Output (MIMO) systems. The technique changes the basis (V) upon retransmission, which helps reduce the error probability upon retransmission. This basis hopping technique provides for improved performance gain without significant increase in design complexity. In one embodiment, communication device (100) includes a receiver section (114) for receiving an acknowledgment (ACK) or a non-acknowledgment (NACK) signal in response to information transmitted by the transmitter section of the communication device. If a NACK is received, a new basis is selected from a set of basis stored in a basis set unit (110). The new basis that is selected is then used by a linear transformation unit (106) in the retransmission of the information.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 23, 2009
    Inventors: Eko N. Onggosanusi, Yan Hui, Anand Ganesh Dabak, Gibong Jeong
  • Publication number: 20090103590
    Abstract: A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (?1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (?2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot.
    Type: Application
    Filed: December 9, 2008
    Publication date: April 23, 2009
    Inventors: Anand G. Dabak, Eko N. Onggosanusi
  • Publication number: 20090080407
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter or a receiver. In one embodiment, the transmitter is for use with a base station and includes a primary module configured to provide a primary synchronization signal. The transmitter also includes a secondary mapping module configured to provide a secondary synchronization signal derived from two sequences taken from a same set of N sequences and indexed by an index pair (S1, S2) with S1 and S2 ranging from zero to N?1, wherein the index pair (S1, S2) is contained in a mapped set of index pairs corresponding to the same set of N sequences that defines a cell identity group. Additionally, the transmitter further includes a transmit module configured to transmit the primary and secondary synchronization signals.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 26, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Eko N. Onggosanusi, Anand G. Dabak
  • Publication number: 20090074103
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter is for use with multiple transmit antennas and includes an encoding unit configured to segment input bits into one or more code blocks. The transmitter also includes a rate matching unit configured to generate a stream of transmit bits from the one or more code blocks, wherein a group of transmit bits allocated to one resource element originates from only one of the one or more code blocks. The transmitter further includes a mapping unit configured to provide modulated symbols from the stream of transmit bits on a number of spatial transmission layers for one or more resource elements. The transmitter still further includes a transmit unit configured to transmit the modulated symbols employing the multiple transmit antennas.
    Type: Application
    Filed: September 11, 2008
    Publication date: March 19, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Badri N. Varadarajan, Eko N. Onggosanusi
  • Publication number: 20090046808
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes an input padding module configured to provide padded bits having padding bits added to payload bits for one or more control channels, and a scrambling module configured to apply a masking sequence to one or more of the padded bits to generate scrambled bits. Additionally, the transmitter also includes an encoding module configured to perform forward error correction encoding and rate matching on the scrambled bits to obtain a required number of control channel output bits, and a transmit module configured to transmit the control channel output bits for one or more control channels.
    Type: Application
    Filed: July 9, 2008
    Publication date: February 19, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Badri N. Varadarajan, Xiaomeng Shi, Eko N. Onggosanusi
  • Publication number: 20090046569
    Abstract: An electronic device includes a first circuit (111) operable to generate a precoding matrix index (PMI) vector associated with a plurality of configured subbands, and further operable to form a compressed PMI vector from said PMI vector wherein the compressed PMI vector includes one reference PMI and at least one differential subband PMI defined relative to the reference PMI; and a second circuit (113) operable to initiate transmission of a signal communicating the compressed PMI vector. Other electronic devices, processes and systems are also disclosed.
    Type: Application
    Filed: August 8, 2008
    Publication date: February 19, 2009
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Runhua Chen, Eko N. Onggosanusi
  • Publication number: 20090031184
    Abstract: A Hybrid Automatic Retransmission Request (H-ARQ) technique is provided for Multi-Input Multi-Output (MIMO) systems. The technique changes the basis (V) upon retransmission, which helps reduce the error probability upon retransmission. This basis hopping technique provides for improved performance gain without significant increase in design complexity. In one embodiment, communication device (100) includes a receiver section (114) for receiving an acknowledgment (ACK) or a non-acknowledgment (NACK) signal in response to information transmitted by the transmitter section of the communication device. If a NACK is received, a new basis is selected from a set of basis stored in a basis set unit (110). The new basis that is selected is then used by a linear transformation unit (106) in the retransmission of the information.
    Type: Application
    Filed: October 2, 2008
    Publication date: January 29, 2009
    Inventors: Eko N. Onggosanusi, Yan Hui, Anand Ganesh Dabak, Gibong Jeong
  • Publication number: 20090017769
    Abstract: The present disclosure provides a receiver, a transmitter and methods of operating a receiver or a transmitter. In one embodiment, the receiver includes a receive unit configured to receive transmissions from multiple antennas. The receiver also includes a rank feedback unit configured to feed back a transmission rank selection, wherein the transmission rank selection corresponds to a transmission rank feedback reduction scheme. The receiver further includes a preceding feedback unit configured to feed back a preceding matrix selection, wherein the preceding matrix selection corresponds to a preceding matrix feedback reduction scheme.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Runhua Chen, Eko N. Onggosanusi, Badri Varadarajan, Anand G. Dabak
  • Patent number: 7463700
    Abstract: A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (?1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (?2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot.
    Type: Grant
    Filed: March 1, 2003
    Date of Patent: December 9, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Anand G. Dabak, Eko N. Onggosanusi
  • Publication number: 20080298326
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter is for use with a base station in a cellular communication system and includes a partitioning unit configured to provide first and second groups of guard subcarriers that partition a synchronization portion from data portions in a downlink synchronization signal. The transmitter also includes a transmit unit configured to transmit the downlink synchronization signal. Additionally, the receiver is for use with user equipment in a cellular communication system and includes a receive unit configured to receive a downlink synchronization signal. The receiver also includes a processing unit configured to provide a synchronization portion based on employing first and second groups of guard subcarriers that partition the synchronization portion from data portions of the downlink synchronization signal.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Applicant: Texas Instruments Incorporated
    Inventors: Tarkesh Pande, Eko N. Onggosanusi, Anand G. Dabak
  • Publication number: 20080292013
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter is for use with NT transmit antennas and includes a precoder unit configured to precode data for transmission using a preceding matrix selected from a nested codebook, wherein the nested codebook provides codebooks corresponding to different transmission layers that are derived from column subsets of multiple NT×NT preceding matrices. The transmitter also includes a transmit unit configured to transmit the precoded data. In another embodiment, the receiver includes a receive unit configured to receive preceded data. The receiver also includes a precoder selection unit configured to select a preceding matrix from a nested codebook for the preceded data, wherein the nested codebook provides codebooks corresponding to different transmission layers that are derived from column subsets of multiple NT×NT preceding matrices.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Applicant: Texas Instruments Incorporated
    Inventors: Badri Varadarajan, Eko N. Onggosanusi, Runhua Chen, IL H. Kim
  • Patent number: 7457381
    Abstract: Multipath relative channel estimations for weighting maximal ratio combining of RAKE detectors in wireless communication systems uses maximal eigenvectors of covariance matrices of path signals. Estimates for close-in and outlying sets of symbols provides linear time change channel estimation.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: November 25, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Srinath Hosur, Alan Gatherer, Eko N. Onggosanusi
  • Publication number: 20080285691
    Abstract: A wireless receiver (30x) for receiving signals from an interference-limited transmitter in an interference-limited system comprising at least one transmit antenna, wherein the signals comprise a plurality of symbols. The receiver comprises at least one receive antenna (RATx) and collection circuitry (38). The collection circuitry is coupled to the at least one receive antenna and is for collecting a plurality of signal samples from the at least one receive antenna. The plurality of signal samples comprise at least one symbol and interference effects between different symbols communicated from the transmitter to the receiver. The receiver also comprises suppression circuitry (44 or 60), coupled to the collection circuitry, for suppressing the interference effects. The receiver also comprises circuitry (46, 48, 50) for receiving signals from the suppression circuitry and for providing estimates of a group of bits and detection circuitry (52) for detecting an error in a packet that comprises the group of bits.
    Type: Application
    Filed: October 31, 2007
    Publication date: November 20, 2008
    Inventors: Eko N. Onggosanusi, Anand G. Dabak, Timothy M. Schmidl
  • Patent number: 7447967
    Abstract: A Hybrid Automatic Retransmission Request (H-ARQ) technique is provided for Multi-Input Multi-Output (MIMO) systems. The technique changes the basis (V) upon retransmission, which helps reduce the error probability upon retransmission. This basis hopping technique provides for improved performance gain without significant increase in design complexity. In one embodiment, communication device (100) includes a receiver section (114) for receiving an acknowledgment (ACK) or a non-acknowledgment (NACK) signal in response to information transmitted by the transmitter section of the communication device. If a NACK is received, a new basis is selected from a set of basis stored in a basis set unit (110). The new basis that is selected is then used by a linear transformation unit (106) in the retransmission of the information.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: November 4, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Eko N. Onggosanusi, Yan Hui, Anand Ganesh Dabak, Gibong Jeong
  • Publication number: 20080267137
    Abstract: The present disclosure provides a base station transmitter, a user equipment transmitter and methods of operating the base station and user equipment transmitters. In one embodiment, the base station transmitter is for use with a cellular communication system and includes a synchronization unit configured to provide a randomly-generated constant amplitude zero autocorrelation (random-CAZAC) sequence corresponding to a downlink synchronization signal. Additionally, the base station transmitter also includes a transmit unit configured to transmit the downlink synchronization signal using the random-CAZAC sequence. In another embodiment, the user equipment transmitter is for use with a cellular communication system and includes a reference signal unit configured to provide a random-CAZAC sequence for an uplink reference signal corresponding to a one resource block allocation of the user equipment.
    Type: Application
    Filed: April 23, 2008
    Publication date: October 30, 2008
    Applicant: Texas Instruments Incorporated
    Inventors: Anand G. Dabak, Eko N. Onggosanusi, Aris Papasakellariou