Patents Examined by John Lequang
  • Patent number: 8670743
    Abstract: The present invention provides a warning message transmission method and apparatus after the warning message transmission procedure is completed. The method comprises: after sending a WRITE-REPLACE WARNING REQUEST message to an eNB and receiving a WRITE-REPLACE WARNING RESPONSE message corresponding to the WRITE-REPLACE WARNING REQUEST message and returned by the eNB, a mobility management entity (MME) determining areas where warning broadcast fails based on the WRITE-REPLACE WARNING RESPONSE message corresponding to the WRITE-REPLACE WARNING REQUEST message and returned by the eNB, and then controlling the eNB to resend a warning message to the areas where warning broadcast fails. The present invention can ensure that disastrous information associated with the ETWS can be timely and effectively notified to all users in areas where broadcast fails so as send an escape or precaution warning to them to further minimize huge losses of human life and property when the disaster comes.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: March 11, 2014
    Assignee: ZTE Corporation
    Inventor: Yi Wang
  • Patent number: 8565091
    Abstract: A system, method, and network node for dynamically controlling throughput over an air interface between a mobile terminal and a radio telecommunication system. A Gateway GPRS Service Node (GGSN) receives a plurality of traffic flows for the mobile terminal and uses a Deep Packet Inspection (DPI) module to determine a target delay class for each traffic flow. The GGSN signals the target delay class of each traffic flow to a Radio Network Controller (RNC) utilizing per-packet marking within a single radio access bearer (RAB). The RNC defines a separate virtual queue for each delay class on a per-RAB basis, and instructs a Node B serving the mobile terminal to do the same. The Node B services the queues according to packet transmission delays associated with each queue. A flow control mechanism in the Node B sets a packet queue length for each queue to optimize transmission performance.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: October 22, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Gergely Pongracz, Zoltan Richard Turanyi, Sandor Racz, Szilveszter Nadas
  • Patent number: 8537658
    Abstract: A method for two component feedback in wireless communication systems wherein a wireless communication device sends a first representation of a first matrix chosen from a first codebook, the first matrix is a N-by-N diagonal matrix with the k-th diagonal elements being ?1*exp(j?(k?1)m/N), for k from 1 to N/2 and being ?2*exp(j?(k?N/2?1)m/N) for k from N/2+1 to N, N is a number of antennas, m is an integer between 0 and N?1, and ?1, ?2 are complex valued scalars. The device also sends a second representation of a second N-by-R matrix chosen from a second codebook, with R being a number of spatial layers wherein the first and second representations together convey a precoder matrix as the matrix product of the first and second matrices.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: September 17, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Krishna Kamal Sayana, Xiangyang Zhuang
  • Patent number: 8514746
    Abstract: The reliability of the connection of a client edge (CE) device to a core network may be improved using redundant provider edge (PE) devices. A first of the PE devices may monitor a connection to the core network, where the PE device acts as a root device in a set of devices that implement a spanning tree using a spanning tree protocol and where a second PE device in the set of devices additionally connects to the core network. The PE device may additionally detect failure of the connection of the PE device to the core network; and change, in response to the detected failure of the connection, a spanning tree protocol priority value of the device to a value having a lower priority than that of the second PE device.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 20, 2013
    Assignee: Juniper Networks, Inc.
    Inventors: Sri Goli, Ramanarayanan Ramakrishnan, Deepak Ojha, Apurva Mehta