Patents by Inventor Derek Yu

Derek Yu 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: 10855756
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: December 1, 2020
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Publication number: 20200092365
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Patent number: 10523750
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 31, 2019
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Publication number: 20180255133
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Patent number: 9986027
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: May 29, 2018
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Patent number: 9838944
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: December 5, 2017
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer
  • Publication number: 20170208530
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer
  • Patent number: 9686681
    Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: June 20, 2017
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu
  • Patent number: 9629061
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: April 18, 2017
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer
  • Publication number: 20170034696
    Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.
    Type: Application
    Filed: October 12, 2016
    Publication date: February 2, 2017
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu
  • Patent number: 9510190
    Abstract: Security in wireless communication networks that employ relay stations to facilitate communications between base stations and mobile stations is enhanced. In one embodiment, resource information provided to one or more relay stations from a base station or another relay station is encrypted prior to being delivered to the one or more relay stations. Only authorized relay stations are allocated an appropriate key necessary to decrypt the resource information. As such, only appropriate relay stations are able to access and use the resource information to effect communications directly or indirectly between the base stations and the mobile stations. In certain embodiments, the resource information is delivered between the various base and relay stations using either unicast or multicast delivery techniques.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: November 29, 2016
    Assignee: APPLE INC.
    Inventors: Hang Zhang, Peiying Zhu, Mo-Han Fong, Wen Tong, Gamini Senarath, Derek Yu, David Steer
  • Patent number: 9485792
    Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 1, 2016
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu
  • Patent number: 9438445
    Abstract: A method and system for wireless communication in which a plurality of media access control (“MAC”) packet data units (“PDUs”) corresponding to a plurality of wireless communication connections are received. The plurality of MAC PDUs is grouped into a relay packet and the relay packet is transmitted. Such grouping and transmission of the relay packet is performed by one or more relay nodes. The traffic control for the transmission can also be based on centralized or decentralized routing control and/or centralized or decentralized QoS control.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 6, 2016
    Assignee: BlackBerry Limited
    Inventors: Hang Zhang, Peiying Zhu, Mo-Han Fong, Wen Tong, Nimal Senarath, Derek Yu, David Steer, Curtis S. Dodd
  • Publication number: 20160255568
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Application
    Filed: May 9, 2016
    Publication date: September 1, 2016
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer
  • Patent number: 9397775
    Abstract: In methods of operating a relay station in a multi-hop wireless relay network, the relay station in communication with a superordinate station and a subordinate station, a downlink transmission to/from the superordinate station is transmitted/received at a first frequency. An uplink transmission to/from the subordinate station is transmitted/received at a second frequency. Communications between the relay station and the superordinate station may be scheduled using frames, each frame including a downlink portion at the first frequency, and an uplink portion at the second frequency. The downlink portion includes first and second downlink subframes for communication between the superordinate station and first and second pluralities of stations, respectively. The uplink portion includes first and second uplink subframes for communication between the superordinate station and the first and second pluralities of stations, respectively.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: July 19, 2016
    Assignee: BlackBerry Limited
    Inventors: Israfil Bahceci, Nimal Senerath, Hang Zhang, Peiying Zhu, Derek Yu, Wen Tong
  • Patent number: 9351200
    Abstract: A wireless communication access path exists between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations directly or through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add information bearing on an identified QoS associated with the PDU to the PDUs before they are delivered to the downstream egress station(s) or intermediate relay station(s). The information may be used by the downstream stations to schedule the PDUs for further delivery. The information may also be used by the egress station to schedule the PDUs for delivery.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: May 24, 2016
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu, David G. Steer
  • Publication number: 20160119416
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Application
    Filed: January 6, 2016
    Publication date: April 28, 2016
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Publication number: 20160073436
    Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.
    Type: Application
    Filed: October 21, 2015
    Publication date: March 10, 2016
    Inventors: Hang Zhang, Peiying Zhu, Wen Tong, Nimal Gamini Senarath, Derek Yu
  • Patent number: 9264492
    Abstract: Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: February 16, 2016
    Assignee: Apple Inc.
    Inventors: Shalini Periyalwar, Hang Zhang, Nimal Senarath, Derek Yu, Kelvin Kar-Kin Au, Karl Mann
  • Patent number: 9225415
    Abstract: A wireless network includes a base station and a relay station for extending wireless coverage of the base station. Downlink data is sent by the base station and relayed through the relay station to a mobile station, where the downlink data is associated with a preamble that is sent directly from the base station to the mobile station. A transmit power of the relay station is adjusted for transmitting the downlink data from the relay station to the mobile station to reduce a difference between a first power level of the preamble received at the mobile station and a second power level of the downlink data received at the mobile station. The uplink transmit power of the mobile station for the data sent to the relay station is adjusted to compensate for the difference in path loss from mobile station to base station and mobile station to relay station and to compensate for the difference in noise_plus_interference level at relay station compared to that of the base station.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 29, 2015
    Assignee: BlackBerry Limited
    Inventors: Nimal Senarath, David Steer, Derek Yu, Hang Zhang, Peiying Zhu, Wen Tong, Israfil Bahceci