Patents by Inventor Yifan Yu

Yifan 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: 9312930
    Abstract: A method of scheduling a signal transmission to a user equipment in a transmitter system, said transmitter system comprising a plurality of spatially distributed transmitters for transmitting signals to said user equipment and a base station for controlling said plurality of spatially distributed transmitters, said method comprising, for said base station, the acts of obtaining for the user equipment a quantization vector estimating the state of the channel between the transmitter system and the user equipment, obtaining for the user equipment a weighting factor representing an attenuation of the channel between the user equipment and at least one of the plurality of spatially distributed transmitters, and scheduling a signal transmission to the user equipment using the obtained quantization vector weighted with the obtained weighting factor.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: April 12, 2016
    Assignee: FRANCE TELECOM
    Inventor: Yifan Yu
  • Publication number: 20150146614
    Abstract: Embodiments described herein relate generally to efficient transmission of data over a radio network between a user equipment (“UE”) and a network node. The UE may adapt packets from TCP to a private protocol and transmit those data packets to the network node. The UE may use ARQ data from link layer circuitry to locally generate TCP ACK data for TCP layer circuitry. At the network node, the private-protocol data packets may be adapted to TCP and transmitted to a remote host over the Internet so that the TCP semantic may be maintained between the UE and the remote host. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: June 25, 2014
    Publication date: May 28, 2015
    Inventors: Yifan Yu, Xiang Li, Guangjie Li, Xu Zhang
  • Publication number: 20150146615
    Abstract: Systems, methods, and devices for controlling transport of ratelessly coded messages are disclosed herein. User equipment (UE) may be configured to receive a data object using a plurality of radios having distinct radio protocols. The data object may divided into a plurality of segments, and the segments may be encoded with a random linear network code before transmission. The random linear network code may permit the UE to reassemble each segment from any large enough set of encoded packets. The UE may use delivery control messages with very low overhead to control the flow of packets for each radio. The UE may control the number of packets received for each segment without specifying which particular packets should be sent. The transmitters may transmit the packets with very little overhead, and encoding information for the packets may be included in the packets in a compact form.
    Type: Application
    Filed: June 27, 2014
    Publication date: May 28, 2015
    Inventors: YIFAN YU, XU ZHANG, GUANGJIE LI, XIANG LI
  • Publication number: 20150095514
    Abstract: A method for routing data at a first node of a network including a second node. The method includes: providing the first node with a database storing an association between: an URL component identifying content at the first node, and a unique identifier associated to the second node, the unique identifier being specified by the second node; registering content locally stored in the second node by storing in the database an association between an URL component identifying the locally stored content and the unique identifier of the second node; and, upon reception from a requesting entity, by the first node, of a content request having a content identifier, the method includes: checking in the database whether the content identifier includes the URL component, and forwarding the content request to the second node if the content identifier includes the URL component associated with the unique identifier of the second node.
    Type: Application
    Filed: March 29, 2013
    Publication date: April 2, 2015
    Applicant: Orange
    Inventor: Yifan Yu
  • Publication number: 20150003350
    Abstract: A method is provided for managing a downlink transmission in a Multi User-Multiple Input Multiple Output (MU-MIMO) system. The MU-MIMO system includes a base station and a set of remote radio units connected to the base station. The method includes: obtaining large scale fading data related to a large scale fading over uplink transmission associated with a user equipment (UE); generating a UE-specific channel vector by using the large scale fading data; and scheduling a downlink transmission by using the UE-specific channel vector.
    Type: Application
    Filed: December 14, 2012
    Publication date: January 1, 2015
    Applicant: Orange
    Inventor: Yifan Yu
  • Publication number: 20140129736
    Abstract: A routing device includes a routing table. The routing table has a set of entries, each entry including: a content name attribute containing a content name value identifying a content, a faces attribute containing a faces value identifying a set of devices storing data related to the content name value, and a mask type attribute containing a mask type value identifying a type of mask to be used for performing a routing table lookup. The routing device is configured to perform a routing table lookup, the routing table lookup including the use of the mask type value of an entry to determine a covering relation between the content name value of the said entry and a content name value to be searched. The routing device is further configured to update the routing table depending on the determined covering relation.
    Type: Application
    Filed: June 27, 2012
    Publication date: May 8, 2014
    Applicant: ORANGE
    Inventor: Yifan Yu
  • Publication number: 20120294249
    Abstract: A method of scheduling a signal transmission to a user equipment in a transmitter system, said transmitter system comprising a plurality of spatially distributed transmitters for transmitting signals to said user equipment and a base station for controlling said plurality of spatially distributed transmitters, said method comprising, for said base station, the acts of obtaining for the user equipment a quantization vector estimating the state of the channel between the transmitter system and the user equipment, obtaining for the user equipment a weighting factor representing an attenuation of the channel between the user equipment and at least one of the plurality of spatially distributed transmitters, and scheduling a signal transmission to the user equipment using the obtained quantization vector weighted with the obtained weighting factor.
    Type: Application
    Filed: December 21, 2010
    Publication date: November 22, 2012
    Applicant: FRANCE TELECOM
    Inventor: Yifan Yu
  • Publication number: 20120195320
    Abstract: A method is provided for sharing data between a plurality of nodes in a communication network. The communication network includes a first sharing router and a second sharing router. The first sharing router and second sharing router each have a memory, the memory including a record table for storing at least one record, wherein each record includes at least a reference describing the data to share and, at least one of the data to share or the address of at least a data node associated with the data to share, so that a collecting node may further collect the data.
    Type: Application
    Filed: September 23, 2010
    Publication date: August 2, 2012
    Applicant: FRANCE TELECOM
    Inventor: Yifan Yu
  • Publication number: 20090279524
    Abstract: Embodiments of the present invention include a method and apparatus for reducing control signaling overhead in a hybrid wireless network.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 12, 2009
    Inventors: Yifan Yu, Lei Du, Yong Bai, Lan Chen, Akira Yamada, Kei Igarashi