Patents by Inventor Masoud Ebrahimi Tazeh Mahalleh
Masoud Ebrahimi Tazeh Mahalleh 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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Publication number: 20140370904Abstract: A wireless access network node assigns different base sequences to respective user equipments (UEs) to use for discovery beacon signals for device-to-device (D2D) discovery.Type: ApplicationFiled: June 12, 2013Publication date: December 18, 2014Inventors: Jack Anthony Smith, Masoud Ebrahimi Tazeh Mahalleh, Robert Novak, Robert Mark Harrison, JoonBeom Kim
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Publication number: 20140369390Abstract: A method and apparatus for increasing, at a transmitter, a payload size of a communication channel having orthogonal groups, the method referencing a base orthogonal sequence set comprising orthogonal sequences that are mutually orthogonal, the orthogonal sequence set having subsets that are sub-block orthogonal with a length of four; and selecting a spreading sequence set from a plurality of spreading sequence sets, each of the plurality of spreading sequence sets comprising an orthogonal sequence set subset combined with an imaginary orthogonal sequence set subset, wherein the selecting increases payload size.Type: ApplicationFiled: September 2, 2014Publication date: December 18, 2014Inventors: Vahid POURAHMADI, Yongkang JIA, Masoud EBRAHIMI TAZEH MAHALLEH, Shiwei GAO
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Patent number: 8908492Abstract: Methods of allocating orthogonal resources of a wireless communication network to a user equipment (UE) that uses transmit diversity are disclosed. In one or more embodiments, the UE is configured to transmit a reference symbol and a modulated symbol on multiple orthogonal resources on an antenna. The method includes: selecting, by the UE, a first and a second orthogonal resource, respectively, from a plurality of orthogonal resources according to the state of information bits to be communicated by the UE; and transmitting, by the UE, the reference and data symbols on the first and the second orthogonal resource, respectively, on one antenna. The first and the second resource are different for at least one of the states of the information bits. The first and the second resource are both in the same physical resource block.Type: GrantFiled: May 8, 2012Date of Patent: December 9, 2014Assignee: BlackBerry LimitedInventors: Youn Hyoung Heo, Robert Mark Harrison, Masoud Ebrahimi Tazeh Mahalleh
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Patent number: 8891353Abstract: Methods of allocating orthogonal resources of a wireless communication network to a user equipment (UE) that uses transmit diversity are disclosed. In one or more embodiments, the UE is configured to transmit a reference symbol and a modulated symbol on multiple orthogonal resources on an antenna. The method includes: selecting, by the UE, a first and a second orthogonal resource, respectively, from a plurality of orthogonal resources according to the state of information bits to be communicated by the UE; and transmitting, by the UE, the reference and data symbols on the first and the second orthogonal resource, respectively, on one antenna. The first and the second resource are different for at least one of the states of the information bits. The first and the second resource are both in the same physical resource block.Type: GrantFiled: May 9, 2012Date of Patent: November 18, 2014Assignee: BlackBerry LimitedInventors: Masoud Ebrahimi Tazeh Mahalleh, Youn Hyoung Heo, Robert Mark Harrison
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Patent number: 8891496Abstract: A method for providing transmit diversity in wireless network communications is presented. An indication of a slot structure is received. The slot structure identifies at least a first location of a reference signal within a slot. A first reference signal is transmitted within a first slot using a first antenna. A location of the first reference signal within the first slot is determined by the slot structure. A second reference signal is transmitted within the first slot using a second antenna. A location of the second reference signal within the first slot is determined by the slot structure. In some cases, the slot structure identifies a second location of a reference signal within the slot structure. The second location being offset from the first location, and a third reference signal is transmitted within the first slot at the second location on the first antenna.Type: GrantFiled: December 3, 2012Date of Patent: November 18, 2014Assignee: BlackBerry LimitedInventors: Masoud Ebrahimi Tazeh Mahalleh, Robert Mark Harrison, Yongkang Jia, Hua Xu
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Publication number: 20140334392Abstract: Described herein is a user equipment comprising a processor configured to: derive a plurality of virtual subframes from an allocation of radio resources, the virtual subframes comprising a virtual special subframe and a virtual forward link subframe wherein the virtual forward link subframe comprises a first forward link portion and the virtual special subframe comprises one or more of: a second forward link portion, and a reverse link portion; transmit, via a direct device to device (DD2D) link, to a second user equipment during the first forward link portion; and receive, via the DD2D link, from the second user equipment during the reverse link portion.Type: ApplicationFiled: May 10, 2013Publication date: November 13, 2014Inventors: William Anthony Gage, Masoud Ebrahimi Tazeh Mahalleh, Biswaroop Mukherjee, Robert Novak
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Publication number: 20140334388Abstract: A method for communication in a wireless telecommunications system is provided. The method comprises receiving, by a first UE, a reference signal transmitted by a second UE and transmitting, by the first UE to a network node, a report indicating that the reference signal was received. The reference signal is received in a detection opportunity that occurs as one of a single detection opportunity or a portion of a pattern of detection opportunities.Type: ApplicationFiled: May 8, 2013Publication date: November 13, 2014Applicant: Research In Motion LimitedInventors: Robert Novak, Biswaroop Mukherjee, Masoud Ebrahimi Tazeh Mahalleh
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Publication number: 20140293968Abstract: In some implementations, a method includes compensating for timing misalignment of subframes associated with at least one of first user equipment (UE) or a second UE. The first UE and the second UE are in an inter-device session (IDS) for direct UE-to-UE communication, and timing for the first UE and a timing for the second UE is derived from an eNode B (eNB).Type: ApplicationFiled: April 1, 2013Publication date: October 2, 2014Applicant: Research In Motion LimitedInventors: Masoud Ebrahimi Tazeh Mahalleh, William Anthony Gage, Biswaroop Mukherjee, Robert Novak
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Patent number: 8842715Abstract: A method and apparatus for increasing, at a transmitter, a payload size of a communication channel having orthogonal groups, the method referencing a base orthogonal sequence set comprising orthogonal sequences that are mutually orthogonal, the orthogonal sequence set having subsets that are sub-block orthogonal with a length of four; and selecting a spreading sequence set from a plurality of spreading sequence sets, each of the plurality of spreading sequence sets comprising an orthogonal sequence set subset combined with an imaginary orthogonal sequence set subset, wherein the selecting increases payload size.Type: GrantFiled: April 8, 2013Date of Patent: September 23, 2014Assignee: BlackBerry LimitedInventors: Vahid Pourahmadi, Yongkang Jia, Masoud Ebrahimi Tazeh Mahalleh, Shiwei Gao
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Publication number: 20140233534Abstract: A system and method for permuting known and unknown message bits before encoding to provide a beneficial rearrangement of bits. Such a method can improve distance properties in the resulting subcode. In various embodiments, the structure of a beneficial rearrangement is dependent on the parameters of how known and unknown bits are grouped and on the specific type of code being used. Given these two parameters, the message bits can be rearranged to more efficiently leverage any apriori knowledge.Type: ApplicationFiled: April 30, 2014Publication date: August 21, 2014Applicant: BlackBerry LimitedInventors: Michael Eoin Buckley, Sean Bartholomew Simmons, Youn Hyoung Heo, Mo-Han Fong, Masoud Ebrahimi Tazeh Mahalleh, Zhijun Cai, Andrew Mark Earnshaw, Nathaniel Joseph Karst
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Patent number: 8797954Abstract: Methods and devices are disclosed for efficient signaling of discontinuous transmission in a wireless communication system. In various aspects of the disclosure, a user equipment device monitors transmissions on a plurality of physical downlink control channels (PDCCHs) and, in response to said transmissions, generates an acknowledge/negative acknowledge (ACK/NACK) signal comprising a plurality of bits, wherein the plurality of bits includes a discontinuous transmission (DTX) indicator bit. In some embodiments, the indicator bit corresponds to an even or odd number of PDCCHs successfully decoded. In other embodiments, the indicator bit corresponds to an odd or even number of component carriers comprising “TRUE” NACKs.Type: GrantFiled: September 27, 2011Date of Patent: August 5, 2014Assignee: BlackBerry LimitedInventors: Michael Eoin Buckley, Youn Hyoung Heo, Andrew Mark Earnshaw, Amin Mobasher, Masoud Ebrahimi Tazeh Mahalleh
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Patent number: 8769365Abstract: A system and method for permuting known and unknown message bits before encoding to provide a beneficial rearrangement of bits. Such a method can improve distance properties in the resulting subcode. In various embodiments, the structure of a beneficial rearrangement is dependent on the parameters of how known and unknown bits are grouped and on the specific type of code being used. Given these two parameters, the message bits can be rearranged to more efficiently leverage any apriori knowledge.Type: GrantFiled: October 7, 2011Date of Patent: July 1, 2014Assignee: BlackBerry LimitedInventors: Michael Eoin Buckley, Sean Bartholomew Simmons, Youn Hyoung Heo, Mo-Han Fong, Masoud Ebrahimi Tazeh Mahalleh, Zhijun Cai, Andrew Mark Earnshaw, Nathaniel Joseph Karst
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Patent number: 8665993Abstract: Methods are disclosed for transmitting a plurality of information bits using resource selection on multiple antennas. In one or more embodiments, the methods include: selecting a first and a second orthogonal resource from an allocation of more than two orthogonal resources according to the state of the plurality of information bits; transmitting a first symbol in a first symbol instant on a first antenna using the first orthogonal resource; and transmitting a second symbol in the first symbol instant on a second antenna using the second orthogonal resource. In some embodiments, the first and second orthogonal resources are different and the first symbol is either a reference symbol or a modulation symbol.Type: GrantFiled: September 29, 2011Date of Patent: March 4, 2014Assignee: BlackBerry LimitedInventors: Masoud Ebrahimi Tazeh Mahalleh, Robert Mark Harrison, Youn Hyoung Heo, Yongkang Jia
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Publication number: 20130089040Abstract: A method for interference management at a network element within a wireless telecommunications network, and the network element and user equipment, the method coordinating transmission of cell specific resource elements with at least one other network element; and transmitting the cell specific resource element to a user equipment concurrent to a resource element transmission from the at least one other network element. Also a method for interference avoidance at a network element operating within a wireless telecommunications network, and the user equipment and network element, the method receiving interference information from a user equipment; providing the interference information to at least one interfering network element; and precoding transmissions to the use equipment for interference cancellation.Type: ApplicationFiled: January 27, 2012Publication date: April 11, 2013Applicant: RESEARCH IN MOTION LIMITEDInventors: Tarik Tabet, Chandra Sekhar Bontu, Yi Yu, Zhijun Cai, Yi Song, Masoud Ebrahimi Tazeh Mahalleh
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Publication number: 20130083681Abstract: A method of operating an eNB in a wireless communication network is provided, wherein the eNB is configured for coordinated multipoint (CoMP) transmission. The method comprises determining, by the eNB, whether to use a fall back transmission scheme for communicating with a UE in the network, wherein the fall back transmission scheme is different from a regular transmission scheme. The method further comprises transmitting, by the eNB, data using the fall back transmission scheme in one or more selected subframes and/or on selected frequency resources.Type: ApplicationFiled: July 10, 2012Publication date: April 4, 2013Applicant: RESEARCH IN MOTION LIMITEDInventors: Masoud Ebrahimi Tazeh Mahalleh, Shiwei Gao, Yongkang Jia, Tarik Tabet, Hua Xu
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Publication number: 20130039349Abstract: An apparatus and method for feedback solutions that function in conjunction with CoMP transmissions. The feedback solutions are applicable to joint transmission (JT) as well as coordinated scheduling (CS) and coordinated beamforming (CB). Embodiments of the present disclosure are described herein in the context of a wireless network in compliance with LTE standards.Type: ApplicationFiled: July 10, 2012Publication date: February 14, 2013Applicant: RESEARCH IN MOTION LIMITEDInventors: Masoud Ebrahimi Tazeh Mahalleh, Shiwei Gao, Yongkang Jia, Tarik Tabet, Hua Xu
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Publication number: 20130039288Abstract: Methods of allocating orthogonal resources of a wireless communication network to a user equipment (UE) that uses transmit diversity are disclosed. In one or more embodiments, the UE is configured to transmit a reference symbol and a modulated symbol on multiple orthogonal resources on an antenna. The method includes: selecting, by the UE, a first and a second orthogonal resource, respectively, from a plurality of orthogonal resources according to the state of information bits to be communicated by the UE; and transmitting, by the UE, the reference and data symbols on the first and the second orthogonal resource, respectively, on one antenna. The first and the second resource are different for at least one of the states of the information bits. The first and the second resource are both in the same physical resource block.Type: ApplicationFiled: May 9, 2012Publication date: February 14, 2013Inventors: Masoud Ebrahimi Tazeh Mahalleh, Youn Hyoung Heo, Robert Mark Harrison
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Publication number: 20130039163Abstract: Methods of allocating orthogonal resources of a wireless communication network to a user equipment (UE) that uses transmit diversity are disclosed. In one or more embodiments, the UE is configured to transmit a reference symbol and a modulated symbol on multiple orthogonal resources on an antenna. The method includes: selecting, by the UE, a first and a second orthogonal resource, respectively, from a plurality of orthogonal resources according to the state of information bits to be communicated by the UE; and transmitting, by the UE, the reference and data symbols on the first and the second orthogonal resource, respectively, on one antenna. The first and the second resource are different for at least one of the states of the information bits. The first and the second resource are both in the same physical resource block.Type: ApplicationFiled: May 8, 2012Publication date: February 14, 2013Inventors: Youn Hyoung Heo, Robert Mark Harrison, Masoud Ebrahimi Tazeh Mahalleh
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Publication number: 20130039300Abstract: Methods of allocating orthogonal resources of a wireless communication network to a user equipment (UE) that uses transmit diversity are disclosed. In one or more embodiments, the UE is configured to transmit a reference symbol and a modulated symbol on multiple orthogonal resources on an antenna. The method includes: selecting, by the UE, a first and a second orthogonal resource, respectively, from a plurality of orthogonal resources according to the state of information bits to be communicated by the UE; and transmitting, by the UE, the reference and data symbols on the first and the second orthogonal resource, respectively, on one antenna. The first and the second resource are different for at least one of the states of the information bits. The first and the second resource are both in the same physical resource block.Type: ApplicationFiled: August 10, 2012Publication date: February 14, 2013Inventors: Masoud Ebrahimi Tazeh Mahalleh, Youn Hyoung Heo, Robert Mark Harrison
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Publication number: 20130028180Abstract: A method and system for access and uplink power control for a wireless system having multiple transmit points. In one aspect a method operating in a wireless network having a plurality of transmission points (TP) including a macro evolved Node B (eNB) and at least one low power node (LPN) having transmit power lower than that of the macro eNB, the method detecting, by the user equipment, a transmission point having a lowest path loss to the user equipment; and transmitting, by the user equipment, a physical random access channel (PRACH) preamble on a PRACH directed to the transmission points having the lowest path losses.Type: ApplicationFiled: August 12, 2011Publication date: January 31, 2013Inventors: Shiwei Gao, Hua XU, Shiguang GUO, Dongsheng YU, Yongkang JIA, Masoud EBRAHIMI TAZEH MAHALLEH, Tarik TABET, Youn Hyoung HEO, Zhijun CAI