Patents by Inventor Ming-Ju Ho

Ming-Ju Ho 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: 20150168974
    Abstract: A cell site includes a tower and a power over Ethernet system to power devices on the tower. The power over Ethernet system includes a power over Ethernet switch and a multiplexing box. Ethernet cables connect output ports of the power over Ethernet switch to input ports of the multiplexing box. A power plant is connected to the input of the power over Ethernet switch. Devices are connected to the output ports of the multiplexing box. The power over Ethernet system also includes a power management control.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: AT&T Mobility II LLC
    Inventors: Patrick Mascarenhas, Iftekhar Alam, Ming-Ju Ho
  • Publication number: 20150172935
    Abstract: 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: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Inventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
  • Patent number: 8996057
    Abstract: 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: Grant
    Filed: January 9, 2014
    Date of Patent: March 31, 2015
    Assignee: AT&T Mobility II LLC
    Inventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
  • Patent number: 8965324
    Abstract: Distributed node systems and methods provide emergency call services to users indoors. A distributed node can be located in a building and configured to receive call requests from users in the building. The distributed node can transmit call requests to a central node that relays the call requests to a wireless network. The distributed node can also transmit node identifying information with the call request, which may be relayed to the wireless network. The wireless network can determine that a call request is a request for an emergency call and obtain location information and emergency services provider routing information based on a node identifier. The wireless network can transmit the location information to the emergency services provider using the emergency services provider routing information and set up the requested call.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: February 24, 2015
    Assignee: AT&T Mobility II LLC
    Inventors: Stalin Fernando Albanes, Ming-Ju Ho, Allenn Han
  • Publication number: 20140354449
    Abstract: In determining whether to provide an alert associated with a mobile element to a mobile communication device, speeds and directions of travel of the mobile element and the mobile communication device are determined. A relative location of the mobile communication device is calculated with respect to the mobile element. Based on the relative location of the mobile communication device with respect to the mobile element, a determination is made whether the alert should be provided.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Inventors: Iftekhar Alam, Ming-Ju Ho, Patrick Mascarenhas
  • Publication number: 20140329546
    Abstract: Location information (e.g., GPS information) pertaining to the location of a device may be integrated into a distributed antenna system (DAS) to enhance location based services. This may be accomplished via a system that filters and combines GPS information with DAS information. Utilization of the enhanced location based services system may enhance accuracy performance of indoor location services and improve round-trip time (RTT) location responses associated with network assisted GPS (e.g., A-GPS) location requests for services from indoor calls.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Inventors: Stalin Fernando Albanes, Ming-Ju Ho, Craig Mullings
  • Patent number: 8818410
    Abstract: Location information (e.g., GPS information) pertaining to the location of a device may be integrated into a distributed antenna system (DAS) to enhance location based services. This may be accomplished via a system that filters and combines GPS information with DAS information. Utilization of the enhanced location based services system may enhance accuracy performance of indoor location services and improve round-trip time (RTT) location responses associated with network assisted GPS (e.g., A-GPS) location requests for services from indoor calls.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: August 26, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Stalin Fernando Albanes, Ming-Ju Ho, Craig Mullings
  • Patent number: 8768418
    Abstract: 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: Grant
    Filed: August 28, 2012
    Date of Patent: July 1, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi
  • Publication number: 20140160973
    Abstract: A received signal strength indicator returned from a femto cell is employed to optimize a multiple access wireless communication network. For example, a method operable in a wireless communications network is disclosed. The method comprises receiving a received signal strength indicator from a femto cell situated in a geographical area within a multiple access wireless communication network, and optimizing the multiple access wireless communication network as a function of the received signal strength indicator.
    Type: Application
    Filed: February 14, 2014
    Publication date: June 12, 2014
    Applicant: AT&T Mobility II LLC
    Inventors: Ming-Ju Ho, Patrick Mascarenhas
  • Publication number: 20140155095
    Abstract: Location information (e.g., GPS information) pertaining to the location of a device may be integrated into a distributed antenna system (DAS) to enhance location based services. This may be accomplished via a system that filters and combines GPS information with DAS information. Utilization of the enhanced location based services system may enhance accuracy performance of indoor location services and improve round-trip time (RTT) location responses associated with network assisted GPS (e.g., A-GPS) location requests for services from indoor calls.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 5, 2014
    Applicant: AT&T Mobility II LLC
    Inventors: Stalin Fernando Albanes, Ming-Ju Ho, Craig Mullings
  • Publication number: 20140119229
    Abstract: 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: Application
    Filed: January 9, 2014
    Publication date: May 1, 2014
    Applicant: AT&T Mobility II LLC
    Inventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
  • Patent number: 8693397
    Abstract: The disclosed subject matter relates to employing a received signal strength indicator returned from a femto cell to optimize a multiple access wireless communication network. In particular, a method operable in a wireless communications network is disclosed. The method comprises receiving a received signal strength indicator from a femto cell situated in a geographical area within a multiple access wireless communication network, and optimizing the multiple access wireless communication network as a function of the received signal strength indicator.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: April 8, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Ming-Ju Ho, Patrick Mascarenhas
  • Patent number: 8682380
    Abstract: 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: Grant
    Filed: June 5, 2012
    Date of Patent: March 25, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
  • Publication number: 20140066013
    Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a processor which when executing computer instructions performs the operations including receiving network operator-approved credentials associated with a first communications device. Pre-assigned network resources are accessible by the first communications device by way of the network operator-approved credentials. The processor also performs operations including replicating the network operator-approved credentials, and receiving a request from a second communications device for access to the pre-assigned network resources of the first communications device. A copy of the replicated network operator-approved credentials is forwarded to enable the second mobile device to access the pre-assigned network resources. Other embodiments are disclosed.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 6, 2014
    Applicant: AT&T Mobility II, LLC
    Inventors: Patrick Mascarenhas, Ming-Ju Ho
  • Patent number: 8611886
    Abstract: A technique for operating an antenna system includes using a downlink antenna to provide radio frequency information to a central antenna controller and adjusting operating parameters of the antenna system based thereon. In at least one embodiment of the invention, an apparatus includes a central antenna control facility configured to communicate at least one operation parameter to a first antenna facility associated with a first antenna in a first cell coverage area. The at least one operation parameter is determined at least partially based on information associated with a signal received from the first antenna by a downlink antenna in a second cell coverage area.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: December 17, 2013
    Assignee: AT&T Mobility II LLC
    Inventors: Ming-Ju Ho, Stalin Fernando Albanes
  • Patent number: 8385979
    Abstract: Sharing antennas among carriers co-located at a base station such to increase throughput of the individual carriers is provided. Thus, the carriers can effectively receive multiple-input/multiple-output (MIMO) from mobile devices though the individual antennas of the carrier alone are not sufficient to receive such signals. A co-sharing interface is provided that takes signals from antennas of one carrier and forwards the signals to a second co-located carrier. In this regard, a carrier can receive signals from a related set of antennas as well as the co-sharing interface component (from a set of antennas related to a disparate carrier) and process the signals in conjunction. Thus, the signals can be disparate portions of a MIMO signal. In addition, the co-sharing interface can modify the signals as defined by the carrier receiving the signals from the interface, such as by applying gain control, alarming, bypass circuitry, and/or amplification.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: February 26, 2013
    Assignee: AT&T Mobility II LLC
    Inventors: Allenn Han, Ming-Ju Ho, Stalin Fernando Albanes
  • Publication number: 20130028107
    Abstract: The disclosed subject matter relates to employing a received signal strength indicator returned from a femto cell to optimize a multiple access wireless communication network. In particular, a method operable in a wireless communications network is disclosed. The method comprises receiving a received signal strength indicator from a femto cell situated in a geographical area within a multiple access wireless communication network, and optimizing the multiple access wireless communication network as a function of the received signal strength indicator.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: AT&T MOBILITY II LLC
    Inventors: Ming-Ju Ho, Patrick Mascarenhas
  • Publication number: 20120320947
    Abstract: 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: Application
    Filed: August 28, 2012
    Publication date: December 20, 2012
    Applicant: CINGULAR WIRELESS, L.L.C.
    Inventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi
  • Publication number: 20120269081
    Abstract: 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: Application
    Filed: June 5, 2012
    Publication date: October 25, 2012
    Applicant: AT&T MOBILITY II LLC
    Inventors: Ming-Ju Ho, Ali Jabbary, Stalin Albanes
  • Patent number: 8279858
    Abstract: 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: Grant
    Filed: June 10, 2008
    Date of Patent: October 2, 2012
    Assignee: AT&T Mobility II LLC
    Inventors: Ming-Ju Ho, Ali Jabbary, Ramzi Barghouthi