Patents by Inventor Severine E. Catreux
Severine E. Catreux 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).
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Patent number: 9042350Abstract: A channel receiver operable to implement fractional dedicated physical channel (F-DPCH) for high-speed data packet access is provided. A received RF signal is processed to produce a set of soft symbol outputs. The receiver detects whether transmit power control (TPC) command bits are present in the set of soft symbol outputs. The TPC command bits are conveyed with the RF signal over non-dedicated pilot bits in the processed baseband signal. When TPC command bits are detected, the set of soft symbol outputs are processed to produce estimated TPC command bits. A TPC quality estimate is generated based on the estimated TPC command bits. A signal-to-interference ratio for the WCDMA dedicated physical channel is adjusted based upon a comparison of the TPC quality estimate with a TPC quality target to effect F-DPCH power control.Type: GrantFiled: April 30, 2013Date of Patent: May 26, 2015Assignee: Broadcom CorporationInventors: Zoran Kostic, Severine E. Catreux-Erceg, Li Fung Chang, Wei Luo, Hongwei Kong
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Publication number: 20130242868Abstract: A channel receiver operable to implement fractional dedicated physical channel (F-DPCH) for high-speed data packet access is provided. A received RF signal is processed to produce a set of soft symbol outputs. The receiver detects whether transmit power control (TPC) command bits are present in the set of soft symbol outputs. The TPC command bits are conveyed with the RF signal over non-dedicated pilot bits in the processed baseband signal. When TPC command bits are detected, the set of soft symbol outputs are processed to produce estimated TPC command bits. A TPC quality estimate is generated based on the estimated TPC command bits. A signal-to-interference ratio for the WCDMA dedicated physical channel is adjusted based upon a comparison of the TPC quality estimate with a TPC quality target to effect F-DPCH power control.Type: ApplicationFiled: April 30, 2013Publication date: September 19, 2013Applicant: BROADCOM CORPORATIONInventors: Zoran Kostic, Severine E. Catreux-Erceg, Li Fung Chang, Wei Luo, Hongwei Kong
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Patent number: 8437315Abstract: A downlink channel receiver operable to implement fractional dedicated physical channel (F-DPCH) processing within a Rake receiver structure is provided. The downlink channel receiver includes a receiver, a baseband processing block, a WCDMA processing block, wherein F-DPCH processing is divided between a plurality of hardware processing blocks and a plurality of firmware (FW) processing blocks. The receiver is operable to convert a radio frequency (RF) signal to a baseband signal. The baseband processing block operable to processes and provides the baseband signal to the WCDMA processing block. F-DPCH processing is divided between the plurality of hardware processing blocks and plurality of firmware (FW) processing blocks.Type: GrantFiled: December 21, 2007Date of Patent: May 7, 2013Assignee: Broadcom CorporationInventors: Zoran Kostic, Severine E. Catreux-Erceg, Li Fung Chang, Wei Luo, Hongwei Kong
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Patent number: 8418033Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient.Type: GrantFiled: March 31, 2011Date of Patent: April 9, 2013Assignee: Intel CorporationInventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath, Jr., Peroor K. Sebastian, Arogyaswami J. Paulraj
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Patent number: 8014438Abstract: A method to process DP bits within a WCDMA receiver where a noise estimation that may be implemented within hardware is provided for improved flexibility and performance. DPCH pilot symbols are received, quantized, channel compensated and combined. The computation of an SNR estimate based on the combined DPCH pilot symbols is provided. Noise estimation is used as part of the SNR estimation of the DP bits (used for downlink power control). This method does not rely on the assumption that the channel is constant over the DP field, while prior methods did.Type: GrantFiled: November 6, 2007Date of Patent: September 6, 2011Assignee: Broadcom CorporationInventor: Severine E. Catreux-Erceg
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Publication number: 20110179336Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient.Type: ApplicationFiled: March 31, 2011Publication date: July 21, 2011Inventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath, JR., Peroor K. Sebastian, Arogyaswami J. Paulraj
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Patent number: 7921349Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input. Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient.Type: GrantFiled: June 25, 2010Date of Patent: April 5, 2011Assignee: Intel CorporationInventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath, Jr., Peroor K. Sebastian, Arogyaswami J. Paulraj
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Publication number: 20100318861Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient.Type: ApplicationFiled: June 25, 2010Publication date: December 16, 2010Inventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath, JR., Peroor K. Sebastian, Arogyaswami J. Paulraj
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Patent number: 7761775Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient.Type: GrantFiled: July 1, 2004Date of Patent: July 20, 2010Assignee: Intel CorporationInventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath, Jr., Peroor K. Sebastian, Arogyaswami J. Paulraj
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Publication number: 20090034502Abstract: A downlink channel receiver operable to implement fractional dedicated physical channel (F-DPCH) processing within a Rake receiver structure is provided. The downlink channel receiver includes a receiver, a baseband processing block, a WCDMA processing block, wherein F-DPCH processing is divided between a plurality of hardware processing blocks and a plurality of firmware (FW) processing blocks. The receiver is operable to convert a radio frequency (RF) signal to a baseband signal. The baseband processing block operable to processes and provides the baseband signal to the WCDMA processing block. F-DPCH processing is divided between the plurality of hardware processing blocks and plurality of firmware (FW) processing blocks.Type: ApplicationFiled: December 21, 2007Publication date: February 5, 2009Applicant: BROADCOM CORPORATIONInventors: Zoran Kostic, Severine E. Catreux-Erceg, Li Fung Chang, Wei Luo, Hongwei Kong
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Publication number: 20090034598Abstract: A method to process DP bits within a WCDMA receiver where a noise estimation that may be implemented within hardware is provided for improved flexibility and performance. DPCH pilot symbols are received, quantized, channel compensated and combined. The computation of an SNR estimate based on the combined DPCH pilot symbols is provided. Noise estimation is used as part of the SNR estimation of the DP bits (used for downlink power control). This method does not rely on the assumption that the channel is constant over the DP field, while prior methods did.Type: ApplicationFiled: November 6, 2007Publication date: February 5, 2009Applicant: BROADCOM CORPORATIONInventor: Severine E. Catreux-Erceg
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Patent number: 7191381Abstract: A method and medium tangibly embodying the method of constructing a lookup table of modes for encoding data for transmission in a wireless communication channel from a transmit unit to a receive unit by using at least one quality parameter of the data and its first-order and second-order statistical parameters to arrange the modes in the lookup table. The first-order and second-order statistical parameters can be determined from a simulation of the wireless communication channel or from field measurements of the wireless communication channel. The modes in the lookup table are ordered by a target value of a communication parameter such as PER, BER, data capacity, signal quality, spectral efficiency, throughput or another suitable communication parameter set to achieve a desired quality of service. The quality parameter selected is conveniently a short-term quality parameter such as signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR) or power level.Type: GrantFiled: December 5, 2000Date of Patent: March 13, 2007Assignee: Intel CorporationInventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath, Jr.
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Patent number: 6760882Abstract: A method and communication system for selecting a mode for encoding data for transmission in a wireless communication channel between a transmit unit and a receive unit. The data is initially transmitted in an initial mode and the selection of the subsequent mode is based on a selection of first-order and second-order statistical parameters of short-term and long-term quality parameters. Suitable short-term quality parameters include signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR), power level and suitable long-term quality parameters include error rates such as bit error rate (BER) and packet error rate (PER). The method of the invention can be employed in Multiple Input Multiple Output (MIMO), Multiple Input Single Output (MISO), Single Input Single Output (SISO) and Single Input Multiple Output (SIMO) communication systems to make subsequent mode selection faster and more efficient.Type: GrantFiled: September 19, 2000Date of Patent: July 6, 2004Assignee: Intel CorporationInventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath, Jr., Peroor K. Sebastian, Arogyaswami J. Paulraj
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Publication number: 20020183010Abstract: A technique for rapidly and efficiently adjusting characteristics of communication in a time-and-frequency varying channel involves the adaptive selection of a transmission mode (i.e., various kinds of modulation, coding, and antenna combining schemes) and a channelization mode (i.e., the manner in which the spectrum is used during transmission). The method includes determining signal quality estimates [32] from received signals, deriving a set of transmission mode parameters [38] from the estimates, and sending parameters [38] as feedback [40] from a receiver to a transmitter. In one embodiment, each of the transmission mode parameters [38] is a transmission mode selected for use with one of the system channelization modes. In another embodiment, transmission mode parameters [38] comprise one parameter selected for use with any system channelization mode.Type: ApplicationFiled: June 5, 2001Publication date: December 5, 2002Inventors: Severine E. Catreux, Ivana Stojanovic, Luc Haumonte, David J. Gesbert
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Publication number: 20020056066Abstract: A method and medium tangibly embodying the method of constructing a lookup table of modes for encoding data for transmission in a wireless communication channel from a transmit unit to a receive unit by using at least one quality parameter of the data and its first-order and second-order statistical parameters to arrange the modes in the lookup table. The first-order and second-order statistical parameters can be determined from a simulation of the wireless communication channel or from field measurements of the wireless communication channel. The modes in the lookup table are ordered by a target value of a communication parameter such as PER, BER, data capacity, signal quality, spectral efficiency, throughput or another suitable communication parameter set to achieve a desired quality of service. The quality parameter selected is conveniently a short-term quality parameter such as signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR) or power level.Type: ApplicationFiled: December 5, 2000Publication date: May 9, 2002Inventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath