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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Patent number: 9825741Abstract: 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: GrantFiled: January 27, 2012Date of Patent: November 21, 2017Assignee: BlackBerry LimitedInventors: Tarik Tabet, Chandra Sekhar Bontu, Yi Yu, Zhijun Cai, Yi Song, Masoud Ebrahimi Tazeh Mahalleh
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Patent number: 9680615Abstract: A method of operating an eNB in a wireless communication network is provided. The method comprises transmitting, by the eNB to a UE, configuration information of first and second sets of CSI-RS resources, wherein the first set of CSI-RS resources is used for long term measurement and the second set of CSI-RS resources is used for short term CSI feedback.Type: GrantFiled: April 20, 2012Date of Patent: June 13, 2017Assignee: BlackBerry LimitedInventors: Shiwei Gao, Hua Xu, Shiguang Guo, Jack Anthony Smith, Yongkang Jia, Masoud Ebrahimi Tazeh Mahalleh, Dongsheng Yu, Robert Mark Harrison
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Publication number: 20170111804Abstract: Example methods, apparatus, articles of manufacture and systems for providing secondary coverage in a mobile communication system are disclosed. Example methods for a first device to provide secondary coverage in a mobile communication system include transmitting a secondary coverage signal and receiving a presence indication from a second device. Such example methods can also include reporting the presence indication to an access node of the mobile communication system. Such example methods can further include receiving information from the access node to enable relay node functionality in the first device in response to reporting the presence indication to the access node.Type: ApplicationFiled: December 23, 2016Publication date: April 20, 2017Applicant: BlackBerry LimitedInventors: Biswaroop MUKHERJEE, Jack Anthony SMITH, Masoud EBRAHIMI TAZEH MAHALLEH, William Anthony GAGE, Robert NOVAK
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Patent number: 9565573Abstract: Example methods, apparatus, articles of manufacture and systems for providing secondary coverage in a mobile communication system are disclosed. Example methods for a first device to provide secondary coverage in a mobile communication system include transmitting a secondary coverage signal and receiving a presence indication from a second device. Such example methods can also include reporting the presence indication to an access node of the mobile communication system. Such example methods can further include receiving information from the access node to enable relay node functionality in the first device in response to reporting the presence indication to the access node.Type: GrantFiled: August 16, 2013Date of Patent: February 7, 2017Assignee: BlackBerry LimitedInventors: Biswaroop Mukherjee, Jack Anthony Smith, Masoud Ebrahimi Tazeh Mahalleh, William Anthony Gage, Robert Novak
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Patent number: 9232488Abstract: 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: GrantFiled: April 1, 2013Date of Patent: January 5, 2016Assignee: RESEARCH IN MOTION LIMITEDInventors: Masoud Ebrahimi Tazeh Mahalleh, William Anthony Gage, Biswaroop Mukherjee, Robert Novak
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Patent number: 9143215Abstract: 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: August 10, 2012Date of Patent: September 22, 2015Assignee: BlackBerry LimitedInventors: Masoud Ebrahimi Tazeh Mahalleh, Youn Hyoung Heo, Robert Mark Harrison
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Patent number: 9112685Abstract: 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: GrantFiled: May 10, 2013Date of Patent: August 18, 2015Assignee: BlackBerry LimitedInventors: William Anthony Gage, Masoud Ebrahimi Tazeh Mahalleh, Biswaroop Mukherjee, Robert Novak
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Patent number: 9107173Abstract: 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: GrantFiled: August 12, 2011Date of Patent: August 11, 2015Assignee: BlackBerry LimitedInventors: Shiwei Gao, Hua Xu, Shiguang Guo, Dongsheng Yu, Yongkang Jia, Masoud Ebrahimi Tazeh Mahalleh, Tarik Tabet, Youn Hyoung Heo, Zhijun Cai
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Patent number: 9043667Abstract: A method and user equipment for simultaneous transmission of a first set of information bits and a second set of information bits by a user equipment, either separately encoded utilizing transmit power or rate matching to increase successful decoding of a set of information bits, or jointly encoding using a priori knowledge or bit positioning to increase successful decoding. Also, the use of joint coding where a first set of information bits is encoded first and then encoded with a second set of information bits, and modulation symbol mapping are provided.Type: GrantFiled: October 11, 2012Date of Patent: May 26, 2015Assignee: BlackBerry LimitedInventors: Yufei Wu Blankenship, Michael Eoin Buckley, Andrew Mark Earnshaw, Masoud Ebrahimi Tazeh Mahalleh, Youn Hyoung Heo, Hua Xu, Jun Li
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Patent number: 9036663Abstract: Aspects of the invention are directed to a transmit diversity method for use in a wireless terminal having a plurality of antennas and a wireless terminal configured to implement the method. The transmit diversity method includes using a different orthogonal sequence for each antenna, or group of antennas, for transmitting an uplink control channel from a wireless terminal to a base station. A first step of the method involves assigning at least one orthogonal sequence to one or more of the plurality of antennas, each of the plurality of antennas being assigned at least one orthogonal sequence. Once the orthogonal sequence is assigned, a further step involves scrambling a signal to be transmitted on the physical uplink control channel (PUCCH) using the at least one orthogonal sequence for each antenna thereby producing a scrambled PUCCH for transmission by each antenna. The scrambled PUCCH can then be transmitted on the plurality of antennas.Type: GrantFiled: September 18, 2009Date of Patent: May 19, 2015Assignee: RPX Clearinghouse LLCInventors: Mohammadhadi Baligh, Masoud Ebrahimi Tazeh Mahalleh, Jianglei Ma, Hua Xu, Ming Jia, Amir Khandani
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Patent number: 9025574Abstract: 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: GrantFiled: July 10, 2012Date of Patent: May 5, 2015Assignee: BlackBerry LimitedInventors: Masoud Ebrahimi Tazeh Mahalleh, Shiwei Gao, Yongkang Jia, Tarik Tabet, Hua Xu
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Publication number: 20150117309Abstract: A method at a wireless device outside of base station control, the method comprising: transmitting a device presence signal for a predetermined time period; and listening for a network presence signal sent in response to the device presence signal. Further, a method at a wireless device, the method comprising: listening for a device presence signal; and transmitting a network presence signal in response to the device presence signal.Type: ApplicationFiled: October 30, 2013Publication date: April 30, 2015Inventors: William Anthony Gage, Masoud Ebrahimi Tazeh Mahalleh, Biswaroop Mukherjee, Robert Novak, Zhijun Cai
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Patent number: 9014020Abstract: A method for transmitting control information in a telecommunications cell is provided. The method includes a transmission point in the cell transmitting a unicast PDCCH intended only for a specific UE in the cell. The unicast PDCCH contains at least one resource element in each resource element group. The at least one resource element contains a UE-specific DMRS that can be used for decoding the unicast PDCCH without the cell-specific reference signal.Type: GrantFiled: May 2, 2011Date of Patent: April 21, 2015Assignee: BlackBerry LimitedInventors: Shiwei Gao, Hua Xu, Shiguang Guo, Jack Anthony Smith, Yongkang Jia, Masoud Ebrahimi Tazeh Mahalleh, Dongsheng Yu, Robert Mark Harrison
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Publication number: 20150085677Abstract: Systems, methods, and apparatuses for using band-limited subframes in wireless communication networks are provided. During the band-limited subframes, the macro cell base station may mute its transmission or transmit at a low power over some frequency sub-band, while transmitting at a normal or higher power over other frequency sub-band. Correspondingly, the small cell base station may communicate with UEs within its coverage at the frequency sub-band that the macro cell base station transmits at a low power. The band-limited subframe enables the small cell base station to communicate with the UE with reduced interference, and in the meantime, increases the throughput of macro cell base station as it does not require the macro cell base station to completely mute its transmission during the band-limited subframe.Type: ApplicationFiled: September 20, 2013Publication date: March 26, 2015Applicant: BlackBerry LimitedInventors: Vahid Pourahmadi, Yongkang Jia, Yi Song, Siva Dharshan Muruganathan, Yufei Wu Blankenship, Hua Xu, Robert Mark Harrison, Shiwei Gao, Masoud Ebrahimi Tazeh Mahalleh
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Patent number: 8982997Abstract: In a method of transmitting a data stream from a transmitter in a multiple-input-multiple-output (MIMO) wireless communication system, where the transmitter comprises a plurality of transmit antennas, a discrete Fourier transform (DFT) is applied to the data stream to generate a plurality of symbol sequences; symbols of a first symbol sequence from the plurality of symbol sequences are paired with symbols of a second symbol sequence from the plurality of symbol sequences to generate a plurality of symbol pairs, wherein the pairing results in an orphan symbol; a space-time block code (STBC) is applied to the symbol pairs to generate a plurality of sets of STBC symbols, each set of STBC symbols being associated with a corresponding one of the plurality of antennas; a cyclic delay diversity (CDD) operation is applied to the orphan symbol to generate a plurality of CDD symbols, each CDD symbol being associated with a corresponding one of the plurality of antennas; and each one of the antennas transmits the corresType: GrantFiled: September 21, 2010Date of Patent: March 17, 2015Assignee: Aplle Inc.Inventors: Ming Jia, Masoud Ebrahimi Tazeh Mahalleh, Mohammadhaadi Baligh, Hua Xu, Jianglei Ma, Amir Khandani
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Patent number: 8972814Abstract: 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: April 30, 2014Date of Patent: March 3, 2015Assignee: 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: 8965443Abstract: A method and system for access and uplink power control for a wireless system having multiple transmit points. In one aspect, a method at a user equipment operating in a wireless network having a plurality of transmission points 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 finding, at the user equipment, at least one reference transmission point, the finding utilizing at least one of a calculation at the user equipment and a message from a network element; and performing, by the user equipment, uplink power control based on the at least one reference transmission.Type: GrantFiled: August 12, 2011Date of Patent: February 24, 2015Assignee: BlackBerry LimitedInventors: Shiwei Gao, Hua Xu, Dongsheng Yu, Yongkang Jia, Masoud Ebrahimi Tazeh Mahalleh, Tarik Tabet, Youn Hyoung Heo, Zhijun Cai
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Publication number: 20150049663Abstract: Example methods, apparatus, articles of manufacture and systems for providing secondary coverage in a mobile communication system are disclosed. Example methods for a first device to provide secondary coverage in a mobile communication system include transmitting a secondary coverage signal and receiving a presence indication from a second device. Such example methods can also include reporting the presence indication to an access node of the mobile communication system. Such example methods can further include receiving information from the access node to enable relay node functionality in the first device in response to reporting the presence indication to the access node.Type: ApplicationFiled: August 16, 2013Publication date: February 19, 2015Applicant: BlackBerry LimitedInventors: Biswaroop Mukherjee, Jack Anthony Smith, Masoud Ebrahimi Tazeh Mahalleh, William Anthony Gage, Robert Novak
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Publication number: 20150016295Abstract: 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: September 26, 2014Publication date: January 15, 2015Inventors: Masoud Ebrahimi Tazeh Mahalleh, Shiwei Gao, Yongkang Jia, Tarik Tabet, Hua Xu
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Patent number: 8917586Abstract: 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: September 29, 2011Date of Patent: December 23, 2014Assignee: BlackBerry LimitedInventors: Robert Mark Harrison, Youn Hyoung Heo, Masoud Ebrahimi Tazeh Mahalleh