Patents by Inventor Marcus Maranhao

Marcus Maranhao 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: 20260135630
    Abstract: A wireless communication system includes at least a first wireless station and a second wireless station. The first wireless station receives reference signal configuration information indicating a configuration of a second wireless station transmitting reference signals. The first wireless station monitors for receipt of the reference signals as indicated by the reference signal configuration information. Based on receipt of a first reference signal as indicated by the reference signal configuration information, the first wireless station detects wireless interference at the first wireless station as caused by the second wireless station transmitting a respective wireless beam including the first reference signal. The respective wireless beam may be transmitted by the second wireless station to convey data to a mobile communication device.
    Type: Application
    Filed: November 6, 2025
    Publication date: May 14, 2026
    Inventors: Marcus Maranhao, Muhammad Usman Fazili, Phillip B. Oni, Dumitru M. lonescu
  • Patent number: 12627324
    Abstract: A master node (MN) communicating with a UE using resource of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes minimum frequency separation information and optionally a baseline reference frequency. The minimum frequency separation information communicated in the addition request, indicates a minimum amount of frequency separation to be maintained between the communication resources in the first band of unlicensed spectrum used for communications with the UE and communication resource in the second band of unlicensed spectrum to be used for communications with the UE. The secondary node selects a channel within the second band of unlicensed spectrum to use for communications with the UE, which will satisfy the minimum frequency separation requirement communicated in the addition request and avoid IDC problems for the UE.
    Type: Grant
    Filed: August 4, 2024
    Date of Patent: May 12, 2026
    Assignee: Charter Communications Operating, LLC
    Inventors: Maulik Vaidya, Ahmad Reza Hedayat, Frank Azcuy, Amitav Mukherjee, Marcus Maranhao
  • Publication number: 20250358087
    Abstract: A first wireless base station sends, to a second wireless base station, a first message that includes an intended time division duplex (TDD) downlink (DL)-uplink (UL) configuration of the first wireless base station that identifies a first pattern of uplink timeslots and downlink timeslots that the first wireless base station proposes to utilize to communicate with one or more user equipments (UEs) in a service area of the first wireless base station. The first wireless base station receives, from the second wireless base station, a second message comprising an acceptance message that accepts the intended TDD DL-UL configuration of the first wireless base station or a rejection message that rejects the intended TDD DL-UL configuration of the first wireless base station.
    Type: Application
    Filed: May 15, 2025
    Publication date: November 20, 2025
    Inventors: Marcus Maranhao, Muhammad Usman Fazili, Phillip Babatunde Oni
  • Publication number: 20250317268
    Abstract: A master node (MN) communicating with a UE using resources of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes timing information including one or more of: i) information indicating a start time for the MN time division duplexing (TDD) timing structure with respect to the UE, or ii) information indicating a reference clock being used by the MN. The secondary node uses the received timing information from the MN to perform timing alignment at the secondary node. The adjusted timing alignment of the secondary node allows the UE to achieve slot-boundary and/or symbol boundary alignment with regard to MN communications using the first unlicensed spectrum and SN communications using the second unlicensed spectrum. Due to the achieved synchronization, an in-device coexistence (IDC) problem is avoided.
    Type: Application
    Filed: June 16, 2025
    Publication date: October 9, 2025
    Inventors: Maulik Vaidya, Ahmad Reza Hedayat, Frank Azcuy, Amitav Mukherjee, Marcus Maranhao
  • Publication number: 20250310867
    Abstract: A communications device, e.g., a residential gateway (RG) or a home router, located at a customer premises which supports cellular and WiFi services, identifies end user communications devices, e.g., cellphones, which support both cellular communications and WiFi communications, via matching, e.g., to within a predetermined time, a detected cellular connection time to a detected WiFi association time. The cellular communications service provider, to which the owner of each identified end user device is a subscriber, is also identified. The communications device, e.g., the RG, provides different levels of WiFi service, to different end user devices, based on the identified communications service provider corresponding to an end user device and any existing WiFi service agreements between service providers.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 2, 2025
    Inventor: Marcus Maranhao
  • Publication number: 20250266917
    Abstract: A wireless communication system includes a first wireless station and a second wireless station. The first wireless station establishes wireless connectivity with multiple wireless stations including the second wireless station. The first wireless station transmits a first notification to the multiple wireless stations, where the first notification includes reference signal schedule information indicating a schedule for monitoring at least one reference signal. The first wireless station additionally transmits a second notification, where the second notification triggering the second wireless station to monitor the at least one reference signal as indicated by the reference signal schedule information.
    Type: Application
    Filed: February 13, 2025
    Publication date: August 21, 2025
    Inventors: Muhammad Usman Fazili, Phillip B. Oni, Marcus Maranhao, Yuda Y. Luz, Francisco A. Azcuy, Dumitru M. lonescu
  • Patent number: 12335202
    Abstract: A master node (MN) communicating with a UE using resources of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes timing information including one or more of: i) information indicating a start time for the MN time division duplexing (TDD) timing structure with respect to the UE, or ii) information indicating a reference clock being used by the MN. The secondary node uses the received timing information from the MN to perform timing alignment at the secondary node. The adjusted timing alignment of the secondary node allows the UE to achieve slot-boundary and/or symbol boundary alignment with regard to MN communications using the first unlicensed spectrum and SN communications using the second unlicensed spectrum. Due to the achieved synchronization, an in-device coexistence (IDC) problem is avoided.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: June 17, 2025
    Assignee: Charter Communications Operating, LLC
    Inventors: Maulik Vaidya, Ahmad Reza Hedayat, Frank Azcuy, Amitav Mukherjee, Marcus Maranhao
  • Publication number: 20240396581
    Abstract: A master node (MN) communicating with a UE using resource of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes minimum frequency separation information and optionally a baseline reference frequency. The minimum frequency separation information communicated in the addition request, indicates a minimum amount of frequency separation to be maintained between the communication resources in the first band of unlicensed spectrum used for communications with the UE and communication resource in the second band of unlicensed spectrum to be used for communications with the UE. The secondary node selects a channel within the second band of unlicensed spectrum to use for communications with the UE, which will satisfy the minimum frequency separation requirement communicated in the addition request and avoid IDC problems for the UE.
    Type: Application
    Filed: August 4, 2024
    Publication date: November 28, 2024
    Inventors: Maulik Vaidya, Ahmad Reza Hedayat, Frank Azcuy, Amitav Mukherjee, Marcus Maranhao
  • Publication number: 20240322959
    Abstract: Methods and apparatus for supporting communication, discovery, and use of time division duplex (TDD) configuration information between nearby cells are described. A first base station requests a UE to collect and report back TDD configuration information about another base station, e.g., a neighboring base station, from which the UE receives signals, e.g., broadcast signals above a predetermined signal strength threshold. In some embodiments, the requests are qualified based on one of more of: i) inter or intra operator network, ii) radio access technology (RAT) in use, or iii) frequency band. The first base station utilizes reports, communicating TDD configuration information pertaining to nearby base stations, obtained from one or more UEs, to manage interference, e.g., changing the first base station's current TDD configuration settings, generating a new first base station TDD configuration, and/or deciding whether or not to use a frequency band of shared and/or unlicensed spectrum or licensed spectrum.
    Type: Application
    Filed: May 28, 2024
    Publication date: September 26, 2024
    Inventors: Ahmad Reza Hedayat, Marcus Maranhao
  • Patent number: 12057872
    Abstract: A master node (MN) communicating with a UE using resource of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes minimum frequency separation information and optionally a baseline reference frequency. The minimum frequency separation information communicated in the addition request, indicates a minimum amount of frequency separation to be maintained between the communication resources in the first band of unlicensed spectrum used for communications with the UE and communication resource in the second band of unlicensed spectrum to be used for communications with the UE. The secondary node selects a channel within the second band of unlicensed spectrum to use for communications with the UE, which will satisfy the minimum frequency separation requirement communicated in the addition request and avoid IDC problems for the UE.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: August 6, 2024
    Assignee: Charter Communications Operating, LLC
    Inventors: Maulik Vaidya, Ahmad Reza Hedayat, Frank Azcuy, Amitav Mukherjee, Marcus Maranhao
  • Patent number: 11997029
    Abstract: Methods and apparatus for supporting communication, discovery, and use of time division duplex (TDD) configuration information between nearby cells are described. A first base station requests a UE to collect and report back TDD configuration information about another base station, e.g., a neighboring base station, from which the UE receives signals, e.g., broadcast signals above a predetermined signal strength threshold. In some embodiments, the requests are qualified based on one of more of: i) inter or intra operator network, ii) radio access technology (RAT) in use, or iii) frequency band. The first base station utilizes reports, communicating TDD configuration information pertaining to nearby base stations, obtained from one or more UEs, to manage interference, e.g., changing the first base station's current TDD configuration settings, generating a new first base station TDD configuration, and/or deciding whether or not to use a frequency band of shared and/or unlicensed spectrum or licensed spectrum.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: May 28, 2024
    Assignee: Charter Communications Operating, LLC
    Inventors: Ahmad Reza Hedayat, Marcus Maranhao
  • Publication number: 20240039565
    Abstract: A master node (MN) communicating with a UE using resource of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes minimum frequency separation information and optionally a baseline reference frequency. The minimum frequency separation information communicated in the addition request, indicates a minimum amount of frequency separation to be maintained between the communication resources in the first band of unlicensed spectrum used for communications with the UE and communication resource in the second band of unlicensed spectrum to be used for communications with the UE. The secondary node selects a channel within the second band of unlicensed spectrum to use for communications with the UE, which will satisfy the minimum frequency separation requirement communicated in the addition request and avoid IDC problems for the UE.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 1, 2024
    Inventors: Maulik Vaidya, Ahmad Reza Hedayat, Frank Azcuy, Amitav Mukherjee, Marcus Maranhao
  • Publication number: 20240040551
    Abstract: A user equipment (UE) receives time division duplexing (TDD) configuration information from a master node (MN), with which the UE is communicating using a first band of unlicensed spectrum and receives TDD configuration information from a secondary node (SN), which is being added to support communications with the UE using a second band of unlicensed spectrum. The UE compares the two TDD structures, identifying DL and UL slots in SN TDD structure which correspond to DL and UL time intervals in the MN TDD structure, designating at least some of those SN slots as preferred DL slots and preferred UL slots. The UE communicates information indicating its preferred DL slots and preferred UL slots in an assistance message to the SN. The SN using UE slot preference information, selects DL and UL slots to be used for UE communications and implements a TDD structure, which avoids an IDC problem.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 1, 2024
    Inventors: Maulik Vaidya, Ahmad Reza Hedayat, Frank Azcuy, Amitav Mukherjee, Marcus Maranhao
  • Publication number: 20240039682
    Abstract: A master node (MN) communicating with a UE using resources of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes timing information including one or more of: i) information indicating a start time for the MN time division duplexing (TDD) timing structure with respect to the UE, or ii) information indicating a reference clock being used by the MN. The secondary node uses the received timing information from the MN to perform timing alignment at the secondary node. The adjusted timing alignment of the secondary node allows the UE to achieve slot-boundary and/or symbol boundary alignment with regard to MN communications using the first unlicensed spectrum and SN communications using the second unlicensed spectrum. Due to the achieved synchronization, an in-device coexistence (IDC) problem is avoided.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 1, 2024
    Inventors: Maulik Vaidya, Ahmad Reza Hedayat, Frank Azcuy, Amitav Mukherjee, Marcus Maranhao
  • Publication number: 20230254076
    Abstract: Methods and apparatus for supporting communication, discovery, and use of time division duplex (TDD) configuration information between nearby cells are described. A first base station requests a UE to collect and report back TDD configuration information about another base station, e.g., a neighboring base station, from which the UE receives signals, e.g., broadcast signals above a predetermined signal strength threshold. In some embodiments, the requests are qualified based on one of more of: i) inter or intra operator network, ii) radio access technology (RAT) in use, or iii) frequency band. The first base station utilizes reports, communicating TDD configuration information pertaining to nearby base stations, obtained from one or more UEs, to manage interference, e.g., changing the first base station's current TDD configuration settings, generating a new first base station TDD configuration, and/or deciding whether or not to use a frequency band of shared and/or unlicensed spectrum or licensed spectrum.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 10, 2023
    Inventors: Ahmad Reza Hedayat, Marcus Maranhao
  • Publication number: 20080068986
    Abstract: A method of failure recovery in a network element is disclosed. The method includes indicating to a number of forwarding engines that a forwarding engine has completed a switchover operation and causing at least one of the forwarding engines to acknowledge that the forwarding engine has completed the switchover operation in response to the indication.
    Type: Application
    Filed: November 30, 2007
    Publication date: March 20, 2008
    Inventors: Marcus Maranhao, Michael Smith, John Knight, Rohit Shrivastava, Ana Burghelea
  • Patent number: 6973074
    Abstract: A method and apparatus for transmitting voice, voiceband data and phone signaling is described. Analog voice, voiceband data and phone signaling are converted into their corresponding digitized version. The digital voice, digitized voiceband data, and digitized phone signaling may be transported as AAL2 packets via an LAN that follows an LAN protocol that supports levels of transmission priority. The LAN protocol may be, for example, HomePNA. The packets may be formatted in a manner similar to other networking protocols for transmitting digitized voice, digitized voiceband data and digitized phone signaling, such as AAL2. The use of AAL2 packets instead of voice over IP packets and techniques allows use of simpler less costly components and a straightforward interworking at the residential gateway device connected to the WAN via DSL using the emerging loop emulation service.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: December 6, 2005
    Assignee: Cisco Technology, Inc.
    Inventor: Marcus Maranhao