Patents by Inventor Zhichang Lai

Zhichang Lai 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: 10492193
    Abstract: A multi-stream data transmission method, including: obtaining, by an anchor, resource availability data of all data transmission paths from a UE, where the resource availability data includes resource data of wireless backhaul links between all access nodes and the anchor; determining, by the anchor, multiple target data transmission paths according to the resource availability data of all the data transmission paths; transmitting service data to the UE in a multi-stream manner by using the multiple target data transmission paths, where the multiple target data transmission paths include a corresponding wireless backhaul link that is established between a target access node and the anchor by using a wireless backhaul device; sending, by the target access node, the service data to the UE by using the corresponding wireless backhaul link; and obtaining, by the UE, the service data by using the multiple target data transmission paths.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 26, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhichang Lai, Ziqiang Wang
  • Patent number: 10218561
    Abstract: Embodiments of the disclosure describe a communications system, including: a control apparatus, multiple remote apparatuses, and a network management server, where the control apparatus communicates with and connects to the multiple remote apparatuses, and the control apparatus controls data aggregation and distribution of the multiple remote apparatuses; the control apparatus communicates with and connects to the network management server, and the network management server and the control apparatus transmit management data and feedback data according to a preset solution, so that the control apparatus and the multiple remote apparatuses are presented as only one network element on the network management server.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: February 26, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shengxian Chen, Zhichang Lai, Ziqiang Wang, Wenli Cao, Tao Liu, Wei Cao
  • Publication number: 20170289976
    Abstract: A multi-stream data transmission method, including: obtaining, by an anchor, resource availability data of all data transmission paths from a UE, where the resource availability data includes resource data of wireless backhaul links between all access nodes and the anchor; determining, by the anchor, multiple target data transmission paths according to the resource availability data of all the data transmission paths; transmitting service data to the UE in a multi-stream manner by using the multiple target data transmission paths, where the multiple target data transmission paths include a corresponding wireless backhaul link that is established between a target access node and the anchor by using a wireless backhaul device; sending, by the target access node, the service data to the UE by using the corresponding wireless backhaul link; and obtaining, by the UE, the service data by using the multiple target data transmission paths.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 5, 2017
    Inventors: Zhichang Lai, Ziqiang Wang
  • Publication number: 20160204974
    Abstract: Embodiments of the disclosure describe a communications system, including: a control apparatus, multiple remote apparatuses, and a network management server, where the control apparatus communicates with and connects to the multiple remote apparatuses, and the control apparatus controls data aggregation and distribution of the multiple remote apparatuses; the control apparatus communicates with and connects to the network management server, and the network management server and the control apparatus transmit management data and feedback data according to a preset solution, so that the control apparatus and the multiple remote apparatuses are presented as only one network element on the network management server.
    Type: Application
    Filed: March 22, 2016
    Publication date: July 14, 2016
    Inventors: Shengxian Chen, Zhichang Lai, Ziqiang Wang, Wenli Cao, Tao Liu, Wei Cao
  • Patent number: 9078290
    Abstract: The present invention relates to the communication field, and discloses an uplink transmission method, a downlink transmission method, and a convergence device. The convergence device selects user plane UDP packets compliant with a multiplexing condition among the user plane UDP packets that come from at least one Node B, multiplexes the selected user plane UDP packets, and sends the packets to a RNC. The multiplexed UDP packet received from the RNC is demultiplexed into at least two user plane UDP packets which are sent to corresponding Node Bs or a corresponding Node B respectively.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: July 7, 2015
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Zhichang Lai
  • Patent number: 8644144
    Abstract: The present invention discloses a method for measuring IP network performance and controlling IP network QoS, and apparatus and system thereof. In embodiments of the present invention, the information about the measurement contents, the data stream to be measured, and the measurement modes is sent to the IP network performance measurement peer end, and the end-to-end IP network performance measurement of the measurement contents of the data stream to be measured is started according to the measurement modes.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: February 4, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiangsheng Wang, Zhichang Lai, Yicheng Yang, Yanyan Chen
  • Patent number: 8638822
    Abstract: A network node, a communication system, and a method for transmitting a clock packet through a tunnel are disclosed. The method includes: encapsulating a tunnel ingress clock packet received at an ingress of a tunnel in an encapsulation mode corresponding to the tunnel, and performing clock correction for the encapsulated clock packet; and sending the corrected clock packet to an egress of the tunnel. The network node for processing a clock packet includes an encapsulating module and a sending module. The communication system includes the network node for processing a clock packet, and further includes an intra-tunnel network node and a tunnel egress network node. According to the present invention, a clock packet is re-encapsulated and transmitted through a tunnel. In the subsequent process of transmitting the clock packet transparently, the node itself serves as a clock reference point, and all network nodes do not need to synchronize time absolutely.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: January 28, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiangsheng Wang, Zhichang Lai, Suolin Chang
  • Publication number: 20120026869
    Abstract: The present invention discloses a method for measuring IP network performance and controlling IP network QoS, and apparatus and system thereof. In embodiments of the present invention, the information about the measurement contents, the data stream to be measured, and the measurement modes is sent to the IP network performance measurement peer end, and the end-to-end IP network performance measurement of the measurement contents of the data stream to be measured is started according to the measurement modes.
    Type: Application
    Filed: October 3, 2011
    Publication date: February 2, 2012
    Inventors: Jiangsheng Wang, Zhichang Lai, Yicheng Yang, Yanyan Chen
  • Publication number: 20110305307
    Abstract: A network node, a communication system, and a method for transmitting a clock packet through a tunnel are disclosed. The method includes: encapsulating a tunnel ingress clock packet received at an ingress of a tunnel in an encapsulation mode corresponding to the tunnel, and performing clock correction for the encapsulated clock packet; and sending the corrected clock packet to an egress of the tunnel. The network node for processing a clock packet includes an encapsulating module and a sending module. The communication system includes the network node for processing a clock packet, and further includes an intra-tunnel network node and a tunnel egress network node. According to the present invention, a clock packet is re-encapsulated and transmitted through a tunnel. In the subsequent process of transmitting the clock packet transparently, the node itself serves as a clock reference point, and all network nodes do not need to synchronize time absolutely.
    Type: Application
    Filed: August 24, 2011
    Publication date: December 15, 2011
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Jiangsheng Wang, Zhichang Lai, Suolin Chang
  • Publication number: 20090225702
    Abstract: The present invention relates to the communication field, and discloses an uplink transmission method, a downlink transmission method, and a convergence device. The convergence device selects user plane UDP packets compliant with a multiplexing condition among the user plane UDP packets that come from at least one Node B, multiplexes the selected user plane UDP packets, and sends the packets to a RNC. The multiplexed UDP packet received from the RNC is demultiplexed into at least two user plane UDP packets which are sent to corresponding Node Bs or a corresponding Node B respectively.
    Type: Application
    Filed: May 15, 2009
    Publication date: September 10, 2009
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Zhichang Lai