Patents by Inventor Ali Jabbary
Ali Jabbary 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: 9713020Abstract: Characterization and enhancement of a mobile local scattering environment. The system includes a channel component and a link control component, wherein the channel component facilitates communication of a ping signal, which is used to estimate the delay spread characteristics and/or angle of arrival in order to characterize the mobile local scattering environment. This information is sent to the link control component, which enhances radio link performance based on the received information. The system can be used to assist in E-911 location applications, such as determining the location of an indoor user.Type: GrantFiled: February 27, 2015Date of Patent: July 18, 2017Assignee: AT&T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
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Publication number: 20150172935Abstract: Characterization and enhancement of a mobile local scattering environment. The system includes a channel component and a link control component, wherein the channel component facilitates communication of a ping signal, which is used to estimate the delay spread characteristics and/or angle of arrival in order to characterize the mobile local scattering environment. This information is sent to the link control component, which enhances radio link performance based on the received information. The system can be used to assist in E-911 location applications, such as determining the location of an indoor user.Type: ApplicationFiled: February 27, 2015Publication date: June 18, 2015Inventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
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Patent number: 8996057Abstract: Characterization and enhancement of a mobile local scattering environment. The system includes a channel component and a link control component, wherein the channel component facilitates communication of a ping signal, which is used to estimate the delay spread characteristics and/or angle of arrival in order to characterize the mobile local scattering environment. This information is sent to the link control component, which enhances radio link performance based on the received information. The system can be used to assist in E-911 location applications, such as determining the location of an indoor user.Type: GrantFiled: January 9, 2014Date of Patent: March 31, 2015Assignee: AT&T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
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Patent number: 8768418Abstract: A method and apparatus for transmitting beacon signals in a wireless communications network. For a given cell site, a single frequency may be used for the beacon signal by assigning different beacon signal time slots to different sectors of the cell site. During one time slot, the beacon signal is transmitted to one of the sectors, and during another one of the time slots, the beacon signal is transmitted to a different one of the sectors. Because a single frequency can be used for all of the sectors of a cell site, more frequencies are available for other purposes, such as for user traffic, for example. The invention improves spectral efficiency, reduces adjacent channel interference and co-channel interference and allows power consumption to be controlled.Type: GrantFiled: August 28, 2012Date of Patent: July 1, 2014Assignee: AT&T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi
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Publication number: 20140119229Abstract: Characterization and enhancement of a mobile local scattering environment. The system includes a channel component and a link control component, wherein the channel component facilitates communication of a ping signal, which is used to estimate the delay spread characteristics and/or angle of arrival in order to characterize the mobile local scattering environment. This information is sent to the link control component, which enhances radio link performance based on the received information. The system can be used to assist in E-911 location applications, such as determining the location of an indoor user.Type: ApplicationFiled: January 9, 2014Publication date: May 1, 2014Applicant: AT&T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
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Patent number: 8682380Abstract: Characterization and enhancement of a mobile local scattering environment. The system includes a channel component and a link control component, wherein the channel component facilitates communication of a ping signal, which is used to estimate the delay spread characteristics and/or angle of arrival in order to characterize the mobile local scattering environment. This information is sent to the link control component, which enhances radio link performance based on the received information. The system can be used to assist in E-911 location applications, such as determining the location of an indoor user.Type: GrantFiled: June 5, 2012Date of Patent: March 25, 2014Assignee: AT&T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
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Publication number: 20120320947Abstract: A method and apparatus for transmitting beacon signals in a wireless communications network. For a given cell site, a single frequency may be used for the beacon signal by assigning different beacon signal time slots to different sectors of the cell site. During one time slot, the beacon signal is transmitted to one of the sectors, and during another one of the time slots, the beacon signal is transmitted to a different one of the sectors. Because a single frequency can be used for all of the sectors of a cell site, more frequencies are available for other purposes, such as for user traffic, for example. The invention improves spectral efficiency, reduces adjacent channel interference and co-channel interference and allows power consumption to be controlled.Type: ApplicationFiled: August 28, 2012Publication date: December 20, 2012Applicant: CINGULAR WIRELESS, L.L.C.Inventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi
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Publication number: 20120269081Abstract: Characterization and enhancement of a mobile local scattering environment. The system includes a channel component and a link control component, wherein the channel component facilitates communication of a ping signal, which is used to estimate the delay spread characteristics and/or angle of arrival in order to characterize the mobile local scattering environment. This information is sent to the link control component, which enhances radio link performance based on the received information. The system can be used to assist in E-911 location applications, such as determining the location of an indoor user.Type: ApplicationFiled: June 5, 2012Publication date: October 25, 2012Applicant: AT&T MOBILITY II LLCInventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
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Patent number: 8279858Abstract: A method and apparatus for transmitting beacon signals in a wireless communications network. For a given cell site, a single frequency may be used for the beacon signal by assigning different beacon signal time slots to different sectors of the cell site. During one time slot, the beacon signal is transmitted to one of the sectors, and during another one of the time slots, the beacon signal is transmitted to a different one of the sectors. Because a single frequency can be used for all of the sectors of a cell site, more frequencies are available for other purposes, such as for user traffic, for example. The invention improves spectral efficiency, reduces adjacent channel interference and co-channel interference and allows power consumption to be controlled.Type: GrantFiled: June 10, 2008Date of Patent: October 2, 2012Assignee: AT&T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi
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Patent number: 8213978Abstract: Characterization and enhancement of a mobile local scattering environment. The system includes a channel component and a link control component, wherein the channel component facilitates communication of a ping signal, which is used to estimate the delay spread characteristics and/or angle of arrival in order to characterize the mobile local scattering environment. This information is sent to the link control component, which enhances radio link performance based on the received information. The system can be used to assist in E-911 location applications, such as determining the location of an indoor user.Type: GrantFiled: August 29, 2005Date of Patent: July 3, 2012Assignee: AT&T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
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Patent number: 8130813Abstract: A method and apparatus for transmitting beacon signals in a wireless communications network. For a given cell site, a single frequency may be used for the beacon signal by assigning different beacon signal time slots to different sectors of the cell site. During one time slot, the beacon signal is transmitted to one of the sectors, and during another one of the time slots, the beacon signal is transmitted to a different one of the sectors. Because a single frequency can be used for all of the sectors of a cell site, more frequencies are available for other purposes, such as for user traffic, for example. The invention improves spectral efficiency, reduces adjacent channel interference and co-channel interference and allows power consumption to be controlled.Type: GrantFiled: May 1, 2008Date of Patent: March 6, 2012Assignee: AT & T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi
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Patent number: 8103280Abstract: A method of measuring frequency interference between adjacent cell sites in a wireless telecommunications system. The method includes selecting a frequency in a cell site to be used as a beacon frequency. The method also includes activating the beacon frequency in the cell site and recording, at a telecommunications switch, a signal strength of the beacon frequency as measured by a first wireless device operating in the cell site and a signal strength of the beacon frequency as measured by a second wireless device operating in another cell site. The method further includes determining the frequency interference between the cell site and the other cell site based on the signal strengths.Type: GrantFiled: October 8, 2007Date of Patent: January 24, 2012Assignee: AT&T Intellectual Property I, LPInventors: Mark Austin, Dock J. Latiolais, Derek Johnson, Ali Jabbary
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Patent number: 7929459Abstract: A method and apparatus for simulating a modification to or expansion of a communications network and for determining whether the simulated modified or expanded network meets cost criteria. First logic forecasts an increase in network traffic. Second logic simulates a modification to or expansion of the network based on the forecasted increase in network traffic and/or based on performance improvement criteria and/or based on coverage expansion criteria. Third logic determines whether the simulated modified or expanded network meets cost criteria.Type: GrantFiled: October 19, 2004Date of Patent: April 19, 2011Assignee: AT&T Mobility II LLCInventors: Claudio Batista Silva, Ali Jabbary, Rudy Hermond
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Patent number: 7805110Abstract: A method is disclosed for determining whether to transmit from a first unit to a second unit, where the transmission is one of a first type and a second type. In the method, a signal from the second unit is received at the first unit, and the strength of the signal as received at the first unit is measured. A determination is made of whether the transmission is of the first type or the second type, and a first threshold is selected if the transmission is of the first type, or else a second threshold is selected if the transmission is of the second type. The measured signal strength is then compared to the selected threshold, and the transmission proceeds only if the measured signal strength exceeds the selected threshold.Type: GrantFiled: July 16, 2009Date of Patent: September 28, 2010Assignee: AT&T Intellectual Property I, L.P.Inventor: Mohammad Ali Jabbary
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Patent number: 7702285Abstract: The present invention relates to systems for determining mobile communications system carrier propagation characteristics. In an embodiment, a system includes a frequency scanner, signal strength measurement device, digital verification color code logic, a location determining unit, and a memory. The frequency scanner can output a carrier signal corresponding to a carrier signal identifier, where the frequency scanner is located at a geographical location. The signal strength measurement device can be coupled to the frequency scanner and determine a carrier strength indicator of the carrier signal. The digital verification color code logic can be coupled to the frequency scanner and determine the digital verification color code of the carrier signal. The location determining unit can be coupled to the frequency scanner and determine a location identifier corresponding to the geographical location of the frequency scanner.Type: GrantFiled: August 16, 2006Date of Patent: April 20, 2010Assignee: AT&T Intellectual Property, I,L.P.Inventors: Mark D. Austin, Ali Jabbary, Derek Johnson
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Publication number: 20090280806Abstract: A method is disclosed for determining whether to transmit from a first unit to a second unit, where the transmission is one of a first type and a second type. In the method, a signal from the second unit is received at the first unit, and the strength of the signal as received at the first unit is measured. A determination is made of whether the transmission is of the first type or the second type, and a first threshold is selected if the transmission is of the first type, or else a second threshold is selected if the transmission is of the second type. The measured signal strength is then compared to the selected threshold, and the transmission proceeds only if the measured signal strength exceeds the selected threshold.Type: ApplicationFiled: July 16, 2009Publication date: November 12, 2009Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventor: Mohammad Ali Jabbary
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Patent number: 7580681Abstract: A method is disclosed for determining whether to transmit from a first unit to a second unit, where the transmission is one of a first type and a second type. In the method, a signal from the second unit is received at the first unit, and the strength of the signal as received at the first unit is measured. A determination is made of whether the transmission is of the first type or the second type, and a first threshold is selected if the transmission is of the first type, or else a second threshold is selected if the transmission is of the second type. The measured signal strength is then compared to the selected threshold, and the transmission proceeds only if the measured signal strength exceeds the selected threshold.Type: GrantFiled: July 11, 2006Date of Patent: August 25, 2009Assignee: AT&T Intellectual Property I, L.P.Inventor: Mohammad Ali Jabbary
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Publication number: 20080242307Abstract: A method and apparatus for transmitting beacon signals in a wireless communications network. For a given cell site, a single frequency may be used for the beacon signal by assigning different beacon signal time slots to different sectors of the cell site. During one time slot, the beacon signal is transmitted to one of the sectors, and during another one of the time slots, the beacon signal is transmitted to a different one of the sectors. Because a single frequency can be used for all of the sectors of a cell site, more frequencies are available for other purposes, such as for user traffic, for example. The invention improves spectral efficiency, reduces adjacent channel interference and co-channel interference and allows power consumption to be controlled.Type: ApplicationFiled: June 10, 2008Publication date: October 2, 2008Applicant: CINGULAR WIRELESS LLCInventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi
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Patent number: 7385953Abstract: A method and apparatus for transmitting beacon signals in a wireless communications network. For a given cell site, a single frequency may be used for the beacon signal by assigning different beacon signal time slots to different sectors of the cell site. During one time slot, the beacon signal is transmitted to one of the sectors, and during another one of the time slots, the beacon signal is transmitted to a different one of the sectors. Because a single frequency can be used for all of the sectors of a cell site, more frequencies are available for other purposes, such as for user traffic, for example. The invention improves spectral efficiency, reduces adjacent channel interference and co-channel interference and allows power consumption to be controlled.Type: GrantFiled: October 26, 2004Date of Patent: June 10, 2008Assignee: AT&T Mobility II LLCInventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi
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Publication number: 20080049664Abstract: A method of measuring frequency interference between adjacent cell sites in a wireless telecommunications system. The method includes selecting a frequency in a cell site to be used as a beacon frequency. The method also includes activating the beacon frequency in the cell site and recording, at a telecommunications switch, a signal strength of the beacon frequency as measured by a first wireless device operating in the cell site and a signal strength of the beacon frequency as measured by a second wireless device operating in another cell site. The method further includes determining the frequency interference between the cell site and the other cell site based on the signal strengths.Type: ApplicationFiled: October 8, 2007Publication date: February 28, 2008Inventors: Mark Austin, Dock Latiolais, Derek Johnson, Ali Jabbary