Patents by Inventor Ghasem Naddafzadeh Shirazi

Ghasem Naddafzadeh Shirazi 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).

  • Patent number: 10455575
    Abstract: The present technology provides a method, apparatus and system for facilitating uplink communication from a user equipment (UE) to a base station in an LTE communication system. One or more frequency subcarriers within a predetermined LTE resource block are selected, covering less than the entire frequency range of the LTE resource block. The selected one or more frequency subcarriers are then used for communication from the UE to the base station.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: October 22, 2019
    Assignee: SIERRA WIRELESS, INC.
    Inventors: Gustav Gerald Vos, Steven John Bennett, Lutz Hans-Joachim Lampe, Ghasem Naddafzadeh Shirazi, Ramon Khalona
  • Patent number: 9836548
    Abstract: A method performed on an electronic device for migrating tags across entities. The migration of the tags is performed following an analysis of one or more personal electronically encoded items associated with a previously created perspective or album associated with the previously created perspective, responsive to a user decision the creation of a new perspective, a new album associated with one of the previously created perspectives, or a new perspective and a new album associated with the new perspective, responsive to a user decision to treat the previously created perspective or album as an individual entity, and association of the previously created perspective or album with the new perspective or new album. The tags are respectively migrated from the new perspective or the new album to the associated previously created perspective or the previously created album and to associated ones of the one or more personal electronically encoded items.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: December 5, 2017
    Assignee: BlackBerry Limited
    Inventors: Anand Ravindra Oka, Sean Bartholomew Simmons, Christopher Harris Snow, Steven Michael Hanov, Ghasem Naddafzadeh Shirazi
  • Patent number: 9369230
    Abstract: A method and apparatus for decoding the LTE physical broadcast channel (PBCH). The transmissions are made by an evolved NodeB (eNB). At least one template symbol sequence representative of a potential transmission by the eNB over the PBCH is provided. A signal or signals transmitted over the PBCH by the eNB is received, the signal or signals indicative of a received symbol sequence. Correlation operations are performed for correlating the at least one template symbol sequence against the received symbol sequence. A representative symbol sequence, timing parameter, or both, is selected, based on the correlation operations. The representative symbol sequence is indicative of information transmitted by the eNB over the LTE PBCH. The timing parameter is indicative of timing of said information transmitted by the eNB.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: June 14, 2016
    Assignee: Sierra Wireless, Inc.
    Inventors: Gustav Gerald Vos, Steven John Bennett, Lutz Hans-Joachim Lampe, Ghasem Naddafzadeh Shirazi
  • Patent number: 9194934
    Abstract: Techniques for estimating a location of a portable electronic device are provided. The techniques represent radio scene information detected by a portable electronic device as a vector. The vector may then be used to retrieve similar vectors associated with known locations from a corpus. The known locations may then be used to estimate the location of the portable electronic device.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: November 24, 2015
    Assignee: BlackBerry Limited
    Inventors: Anand Ravindra Oka, Sean Bartholomew Simmons, Christopher Harris Snow, Robert George Oliver, Ghasem Naddafzadeh Shirazi
  • Patent number: 9144066
    Abstract: The present technology provides for an LTE system comprising a UE which is configured to perform blind HARQ combining of PDCCH messages, and an eNB which is configured with a HARQ transmission mechanism for such PDCCH messages. The PDCCH messages may be uplink or downlink grant messages, for example. In some embodiments, up to 8 messages may be combined via HARQ. Such HARQ combining may facilitate realizing a practical coverage gain.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: September 22, 2015
    Assignee: Sierra Wireless, Inc.
    Inventors: Gustav Gerald Vos, Ghasem Naddafzadeh Shirazi, Lutz Hans-Joachim Lampe, Ramon Khalona
  • Patent number: 9069634
    Abstract: A system and method for generating an m-dimensional signature vector with aliasing across synonyms in a computing device is provided. Data representable by a plurality of key-value pairs, each comprising a unique identifier and an associated non-zero value of n-dimensional data is received at the computing device. Elements of the m-dimensional aliased signature vector are generated using synonym information of keys from the plurality of key-value pairs.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: June 30, 2015
    Assignee: BlackBerry Limited
    Inventors: Anand Ravindra Oka, Christopher Harris Snow, Sean Bartholomew Simmons, Ghasem Naddafzadeh Shirazi
  • Patent number: 8948809
    Abstract: Methods of predicting future connectivity of a portable electronic device is described along with systems and devices for implementing the methods. The method includes receiving an indication of a plurality of radio scenes detected at the portable electronic device at different reference times. Each of the plurality of radio scenes identifies transmitters and associated signal strength of signals received by the portable electronic device at the respective reference time. One or more connectivity predictions can be retrieved from a corpus of pairs of a composite signature vector and associated connectivity information. Each of the one or more connectivity predictions can be retrieved based on a similarity between the associated respective composite signature vector and a query composite signature vector. A future connectivity prediction of the portable electronic device can be provided based on the one or more retrieved connectivity predictions.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 3, 2015
    Assignee: BlackBerry Limited
    Inventors: Anand Ravindra Oka, Christopher Harris Snow, Ghasem Naddafzadeh Shirazi, Sean Bartholomew Simmons, Gerhard Dietrich Klassen
  • Publication number: 20140301296
    Abstract: A method and apparatus for decoding the LTE physical broadcast channel (PBCH). The transmissions are made by an evolved NodeB (eNB). At least one template symbol sequence representative of a potential transmission by the eNB over the PBCH is provided. A signal or signals transmitted over the PBCH by the eNB is received, the signal or signals indicative of a received symbol sequence. Correlation operations are performed for correlating the at least one template symbol sequence against the received symbol sequence. A representative symbol sequence, timing parameter, or both, is selected, based on the correlation operations. The representative symbol sequence is indicative of information transmitted by the eNB over the LTE PBCH. The timing parameter is indicative of timing of said information transmitted by the eNB.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 9, 2014
    Applicant: SIERRA WIRELESS, INC.
    Inventors: Gustav Gerald Vos, Steven John Bennett, Lutz Hans-Joachim Lampe, Ghasem Naddafzadeh Shirazi
  • Publication number: 20140185534
    Abstract: The present technology provides for an LTE system comprising a UE which is configured to perform blind HARQ combining of PDCCH messages, and an eNB which is configured with a HARQ transmission mechanism for such PDCCH messages. The PDCCH messages may be uplink or downlink grant messages, for example. In some embodiments, up to 8 messages may be combined via HARQ. Such HARQ combining may facilitate realizing a practical coverage gain.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: SIERRA WIRELESS, INC.
    Inventors: Gustav Gerald Vos, Ghasem Naddafzadeh Shirazi, Lutz Hans-Joachim Lampe, Ramon Khalona
  • Publication number: 20140098782
    Abstract: A method and system for transmitting data from a UE in an OFDM system such as LTE. Information symbols are spread using a spreading code assigned to the UE and orthogonal to spreading codes of other UEs. The assigned spreading code has a spreading factor which is variable and dynamically selected based on one or more system performance criteria. The spread information symbols are transmitted in one or more LTE resource blocks. Spreading may be performed in the time domain, over a plurality of LTE time slots and/or resource elements.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 10, 2014
    Applicant: SIERRA WIRELESS. INC.
    Inventors: Ghasem Naddafzadeh Shirazi, Lutz Hans-Joachim Lampe, Gustav Gerald VOS, Steven John Bennett
  • Publication number: 20140098781
    Abstract: The present technology provides a method, apparatus and system for facilitating uplink communication from a user equipment (UE) to a base station in an LTE communication system. One or more frequency subcarriers within a predetermined LTE resource block are selected, covering less than the entire frequency range of the LTE resource block. The selected one or more frequency subcarriers are then used for communication from the UE to the base station.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 10, 2014
    Applicant: SIERRA WIRELESS, INC.
    Inventors: Gustav Gerald Vos, Steven John Bennett, Lutz Hans-Joachim Lampe, Ghasem Naddafzadeh Shirazi, Ramon Khalona
  • Publication number: 20140067878
    Abstract: A method performed on an electronic device for creating a proposal to a user. The proposal is created from an analysis of one or more personal electronically encoded items associated with one or more previously created perspectives unique to a user with each of the previously created perspectives representative of user interest and is based on similarities determined from the analysis. The proposal includes the creation of a new perspective, a new album, or a new perspective and a new album associated with the new perspective and the association therewith of one or more of the one or more analyzed personal electronically encoded items. Responsive to user acceptance of the proposal, the system creates the new perspective, the new album, or the new perspective and the new album associated with the new perspective and associates therewith one or more of the one or more analyzed personal electronically encoded items.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Anand Ravindra OKA, Sean Bartholomew SIMMONS, Christopher Harris SNOW, Steven Michael HANOV, Ghasem NADDAFZADEH SHIRAZI
  • Publication number: 20140067349
    Abstract: A method performed on an electronic device for clustering personal electronically encoded items. Such items are clustered in response to one or more perspective directives from a user that are received by the device by creating one or more perspectives each representative of a personal area of user interest identified by the user. Responsive to one or more first clustering directives from the user, the system clusters one or more of the user's personal electronically encoded items with one or more of the created one or more perspectives and develops a probability model for managing the user's personal electronically encoded items based on the one or more perspective directives and the one or more first clustering directives.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Anand Ravindra OKA, Sean Bartholomew SIMMONS, Christopher Harris SNOW, Steven Michael HANOV, Ghasem NADDAFZADEH SHIRAZI
  • Publication number: 20140067807
    Abstract: A method performed on an electronic device for migrating tags across entities. The migration of the tags is performed following an analysis of one or more personal electronically encoded items associated with a previously created perspective or album associated with the previously created perspective, responsive to a user decision the creation of a new perspective, a new album associated with one of the previously created perspectives, or a new perspective and a new album associated with the new perspective, responsive to a user decision to treat the previously created perspective or album as an individual entity, and association of the previously created perspective or album with the new perspective or new album. The tags are respectively migrated from the new perspective or the new album to the associated previously created perspective or the previously created album and to associated ones of the one or more personal electronically encoded items.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Anand Ravindra OKA, Sean Bartholomew SIMMONS, Christopher Harris SNOW, Steven Michael HANOV, Ghasem NADDAFZADEH SHIRAZI
  • Publication number: 20130237278
    Abstract: Methods of predicting future connectivity of a portable electronic device is described along with systems and devices for implementing the methods. The method includes receiving an indication of a plurality of radio scenes detected at the portable electronic device at different reference times. Each of the plurality of radio scenes identifies transmitters and associated signal strength of signals received by the portable electronic device at the respective reference time. One or more connectivity predictions can be retrieved from a corpus of pairs of a composite signature vector and associated connectivity information. Each of the one or more connectivity predictions can be retrieved based on a similarity between the associated respective composite signature vector and a query composite signature vector. A future connectivity prediction of the portable electronic device can be provided based on the one or more retrieved connectivity predictions.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Anand Ravindra OKA, Sean Bartholomew SIMMONS, Christopher Harris SNOW, Gerhard Dietrich KLASSEN, Ghasem NADDAFZADEH SHIRAZI
  • Publication number: 20130234894
    Abstract: Techniques for estimating a location of a portable electronic device are provided. The techniques represent radio scene information detected by a portable electronic device as a vector. The vector may then be used to retrieve similar vectors associated with known locations from a corpus. The known locations may then be used to estimate the location of the portable electronic device.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Anand Ravindra Oka, Sean Bartholomew Simmons, Christopher Harris Snow, Robert George Oliver, Ghasem Naddafzadeh Shirazi
  • Publication number: 20130238681
    Abstract: A system and method for generating an m-dimensional signature vector with aliasing across synonyms in a computing device is provided. Data representable by a plurality of key-value pairs, each comprising a unique identifier and an associated non-zero value of n-dimensional data is received at the computing device. Elements of the m-dimensional aliased signature vector are generated using synonym information of keys from the plurality of key-value pairs.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Anand Ravindra OKA, Christopher Harris SNOW, Sean Bartholomew SIMMONS, Ghasem NADDAFZADEH SHIRAZI