Patents by Inventor Sassan Ahmadi

Sassan Ahmadi 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: 11166281
    Abstract: Methods and apparatus for identification of macro-cells and subordinate transmission nodes. In one embodiment, the methods and apparatus are configured for use within a long term evolution (LTE/LTE-A) network, and include a scrambling technique which can facilitate advanced capabilities in which the subordinate nodes possess unique cell identities from the macro-cell. The use of unique scrambling sequences allows subordinate node switching and other advanced multi-antenna techniques in heterogeneous networks. The disclosed methods and apparatus further allow for distinction and detection of signals transmitted from low-power RRHs, femto-cells, etc. and advantageously achieve greater interference randomization gain.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: November 2, 2021
    Assignee: Apple Inc.
    Inventor: Sassan Ahmadi
  • Publication number: 20210314975
    Abstract: An example communication system includes remote units to exchange radio frequency (RF) signals with mobile devices, RF signals comprising information destined for, or originating from, a mobile device, the remote units performing at least some physical layer processing for an air interface used by the remote units to communicate with the mobile device. The communication system also includes two or more controllers comprising real-time schedulers for assigning airlink resources to the mobile device for the information. The communication system also includes a coordination function coupled to the two or more controllers to coordinate assignments made by the real-time schedulers in the two or more controllers.
    Type: Application
    Filed: June 11, 2021
    Publication date: October 7, 2021
    Applicant: CommScope Technologies LLC
    Inventors: Arthur J. Barabell, Vedat Eyuboglu, Nagi Jayaraman Mahalingam, Balaji B Raghothaman, Stuart D. Sandberg, Sassan Ahmadi
  • Patent number: 11082997
    Abstract: An example communication system in a cellular network comprises: a processing system comprising a controller and remote units, with the remote units being configured to communicate with the controller and to communicate with mobile devices within a communication cell of the cellular network. At least part of the processing system is configured to perform operations comprising: estimating signal strength experienced by all or some of the mobile devices; identifying, based at least on the signal strength, one or more of the mobile devices that can be scheduled for communication with one or more of the remote units in the communication cell on a same airlink resource; and scheduling the communication.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 3, 2021
    Assignee: CommScope Technologies LLC
    Inventors: Arthur J. Barabell, Vedat Eyuboglu, Nagi Jayaraman Mahalingam, Balaji B Raghothaman, Stuart D. Sandberg, Sassan Ahmadi
  • Patent number: 11064470
    Abstract: Distributed computing in a wireless communication system. Reports may be received from a plurality of nodes in a wireless communication system. Each respective report may include information regarding computing resources at the respective node. A notification of a request for a computing resource may be received from a first wireless user equipment device. A first node may be selected from the plurality of nodes to provide the computing resource based on the reports received from the plurality of nodes. The first node may be assigned to provide the computing resource.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: July 13, 2021
    Assignee: Apple Inc.
    Inventor: Sassan Ahmadi
  • Patent number: 10887068
    Abstract: Methods and apparatus to enable an extensible and scalable control channel for wireless networks. In one embodiment, an Enhanced Physical Downlink Control Channel (ePDCCH) is disclosed that is implemented with a flexible number of Physical Resource Blocks (PRBs). Advantages of the ePDCCH include, for example: more efficient spectral utilization, better frequency management across multiple serving entities (e.g., base stations and remote radio heads), and extensible payload capabilities that can scale to accommodate higher or lower control information payloads, as compared to prior art PDCCH solutions.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: January 5, 2021
    Assignee: Apple Inc.
    Inventor: Sassan Ahmadi
  • Patent number: 10863506
    Abstract: Embodiments of the present invention provide a virtual multicarrier design for orthogonal frequency division multiple access communications. Other embodiments may be described and claimed.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: December 8, 2020
    Assignee: Apple Inc.
    Inventors: Hujun Yin, Rongzhen Yang, Xiaoshu Qian, Yang-Seok Choi, Sassan Ahmadi, Kamran Etemad
  • Publication number: 20200092901
    Abstract: An example communication system in a cellular network comprises: a processing system comprising a controller and remote units, with the remote units being configured to communicate with the controller and to communicate with mobile devices within a communication cell of the cellular network. At least part of the processing system is configured to perform operations comprising: estimating signal strength experienced by all or some of the mobile devices; identifying, based at least on the signal strength, one or more of the mobile devices that can be scheduled for communication with one or more of the remote units in the communication cell on a same airlink resource; and scheduling the communication.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Applicant: CommScope Technologies LLC
    Inventors: Arthur J. Barabell, Vedat Eyuboglu, Nagi Jayaraman Mahalingam, Balaji B. Raghothaman, Stuart D. Sandberg, Sassan Ahmadi
  • Publication number: 20200084673
    Abstract: Methods and apparatus for dynamic sharing of resources such as radio frequency (RF) spectrum in a wireless system. In one embodiment, the sharing is conducted among a number of base stations (e.g., eNodeBs or Access Points (APs)), or among different radio access technologies (RATs). In one implementation, the sharing is accomplished through reservation of new RF carriers, and temporary assignment (and release) of one or more RF carriers to the multi-carrier enabled radio access systems or base stations. Such dynamic spectrum sharing allows opportunistic use of additional RF carriers in a multiā€¢carrier system as opposed to permanent availability to the eNodeB or AP regardless of their effective usage.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 12, 2020
    Inventor: Sassan Ahmadi
  • Publication number: 20200036496
    Abstract: Methods and apparatus to enable an extensible and scalable control channel for wireless networks. In one embodiment, an Enhanced Physical Downlink Control Channel (ePDCCH) is disclosed that is implemented with a flexible number of Physical Resource Blocks (PRBs). Advantages of the ePDCCH include, for example: more efficient spectral utilization, better frequency management across multiple serving entities (e.g., base stations and remote radio heads), and extensible payload capabilities that can scale to accommodate higher or lower control information payloads, as compared to prior art PDCCH solutions.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 30, 2020
    Inventor: Sassan AHMADI
  • Patent number: 10536959
    Abstract: An example communication system in a cellular network comprises: a processing system comprising a controller and remote units, with the remote units being configured to communicate with the controller and to communicate with mobile devices within a communication cell of the cellular network. At least part of the processing system is configured to perform operations comprising: estimating signal strength experienced by all or some of the mobile devices; identifying, based at least on the signal strength, one or more of the mobile devices that can be scheduled for communication with one or more of the remote units in the communication cell on a same airlink resource; and scheduling the communication.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: January 14, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Arthur J. Barabell, Vedat Eyuboglu, Nagi Jayaraman Mahalingam, Balaji B Raghothaman, Stuart D. Sandberg, Sassan Ahmadi
  • Patent number: 10477517
    Abstract: Methods and apparatus for dynamic sharing of resources such as radio frequency (RF) spectrum in a wireless system. In one embodiment, the sharing is conducted among a number of base stations (e.g., eNodeBs or Access Points (APs)), or among different radio access technologies (RATs). In one implementation, the sharing is accomplished through reservation of new RF carriers, and temporary assignment (and release) of one or more RF carriers to the multi-carrier enabled radio access systems or base stations. Such dynamic spectrum sharing allows opportunistic use of additional RF carriers in a multi-carrier system as opposed to permanent availability to the eNodeB or AP regardless of their effective usage.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: November 12, 2019
    Assignee: Apple Inc.
    Inventor: Sassan Ahmadi
  • Publication number: 20190306854
    Abstract: Distributed computing in a wireless communication system. Reports may be received from a plurality of nodes in a wireless communication system. Each respective report may include information regarding computing resources at the respective node. A notification of a request for a computing resource may be received from a first wireless user equipment device. A first node may be selected from the plurality of nodes to provide the computing resource based on the reports received from the plurality of nodes. The first node may be assigned to provide the computing resource.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Inventor: Sassan Ahmadi
  • Patent number: 10432379
    Abstract: Methods and apparatus to enable an extensible and scalable control channel for wireless networks. In one embodiment, an Enhanced Physical Downlink Control Channel (ePDCCH) is disclosed that is implemented with a flexible number of Physical Resource Blocks (PRBs). Advantages of the ePDCCH include, for example: more efficient spectral utilization, better frequency management across multiple serving entities (e.g., base stations and remote radio heads), and extensible payload capabilities that can scale to accommodate higher or lower control information payloads, as compared to prior art PDCCH solutions.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: October 1, 2019
    Assignee: Apple Inc.
    Inventor: Sassan Ahmadi
  • Publication number: 20190253107
    Abstract: A coordinated multipoint (CoMP) transmission radio network is provided. Each cell in the CoMP network may include antenna nodes distributed at different geographical locations and coupled to a common baseband processing unit. When operating a user device in the CoMP network, the device may register with a neighboring baseband unit and may be served using at least one antenna node. The device may receive reference signals from different antenna nodes in its vicinity, compute receive signal strength levels, and report the measurements to the corresponding baseband unit. The baseband unit may then switch appropriate antennas in/out of use based on the measured results. If desired, the device may be served using more than one antenna node that may or may not be part of the same cell.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 15, 2019
    Inventor: Sassan Ahmadi
  • Patent number: 10341995
    Abstract: Distributed computing in a wireless communication system. Reports may be received from a plurality of nodes in a wireless communication system. Each respective report may include information regarding computing resources at the respective node. A notification of a request for a computing resource may be received from a first wireless user equipment device. A first node may be selected from the plurality of nodes to provide the computing resource based on the reports received from the plurality of nodes. The first node may be assigned to provide the computing resource.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 2, 2019
    Assignee: Apple Inc.
    Inventor: Sassan Ahmadi
  • Patent number: 10306543
    Abstract: Embodiments of a method and apparatus for discovery and association, by a mobile station, of a femto base station from a plurality of base stations. The mobile station may select a base station for consideration for association by decoding a physical layer identifier to determine that the base station is a macro base station and select a different base station based on other considerations. Other embodiments may be described and claimed.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: May 28, 2019
    Assignee: Intel Corporation
    Inventors: Sassan Ahmadi, Shahrnaz Azizi
  • Publication number: 20190150156
    Abstract: Methods and apparatus for identification of macro-cells and subordinate transmission nodes. ha one embodiment, the methods and apparatus are configured for use within a long term evolution (LTE/LTE-A) network, and include a scrambling technique which can facilitate advanced capabilities in which the subordinate nodes possess unique cell identities from the macro-cell. The use of unique scrambling sequences allows subordinate node switching and other advanced multi-antenna techniques in heterogeneous networks. The disclosed methods and apparatus further allow for distinction and detection of signals transmitted from low-power RRHs, femto-cells, etc. and advantageously achieve greater interference randomization gain.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Inventor: Sassan Ahmadi
  • Patent number: 10284263
    Abstract: A coordinated multipoint (CoMP) transmission radio network is provided. Each cell in the CoMP network may include antenna nodes distributed at different geographical locations and coupled to a common baseband processing unit. When operating a user device in the CoMP network, the device may register with a neighboring baseband unit and may be served using at least one antenna node. The device may receive reference signals from different antenna nodes in its vicinity, compute receive signal strength levels, and report the measurements to the corresponding baseband unit. The baseband unit may then switch appropriate antennas in/out of use based on the measured results. If desired, the device may be served using more than one antenna node that may or may not be part of the same cell.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: May 7, 2019
    Assignee: Apple Inc.
    Inventor: Sassan Ahmadi
  • Patent number: 10200997
    Abstract: Methods and apparatus for identification of macro-cells and subordinate transmission nodes. In one embodiment, the methods and apparatus are configured for use within a long term evolution (LTE/LTE-A) network, and include a scrambling technique which can facilitate advanced capabilities in which the subordinate nodes possess unique cell identities from the macro-cell. The use of unique scrambling sequences allows subordinate node switching and other advanced multi-antenna techniques in heterogeneous networks. The disclosed methods and apparatus further allow for distinction and detection of signals transmitted from low-power RRHs, femto-cells, etc. and advantageously achieve greater interference randomization gain.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: February 5, 2019
    Assignee: APPLE INC.
    Inventor: Sassan Ahmadi
  • Publication number: 20180352561
    Abstract: An example communication system in a cellular network comprises: a processing system comprising a controller and remote units, with the remote units being configured to communicate with the controller and to communicate with mobile devices within a communication cell of the cellular network. At least part of the processing system is configured to perform operations comprising: estimating signal strength experienced by all or some of the mobile devices; identifying, based at least on the signal strength, one or more of the mobile devices that can be scheduled for communication with one or more of the remote units in the communication cell on a same airlink resource; and scheduling the communication.
    Type: Application
    Filed: July 19, 2018
    Publication date: December 6, 2018
    Applicant: CommScope Technologies LLC
    Inventors: Arthur J. Barabell, Vedat Eyuboglu, Nagi Jayaraman Mahalingam, Balaji B. Raghothaman, Stuart D. Sandberg, Sassan Ahmadi