Patents Examined by Sun Jong Kim
  • Patent number: 11070464
    Abstract: The techniques describe forwarding multicast traffic using a multi-level cache in a network device forwarding plane for determining a set of outgoing interfaces of the network device on which to forward the multicast traffic. For example, a multi-level cache is configured to store a multicast identifier of a multicast packet and multicast forwarding information associated with the multicast identifier, such as identification of one or more egress packet processors of the network device to which the multicast packet is to be sent for forwarding to the set of one or more egress network devices, and/or outgoing interfaces of the network device toward each egress network device of the set of one or more egress network devices. The multi-level cache is also configured to store respective multicast identifiers that are to be encapsulated with outgoing multicast packets that are forwarded to the set of one or more egress network devices.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: July 20, 2021
    Assignee: Juniper Networks, Inc.
    Inventors: Sri Karthik Goud Gadela, Sharmila Koppula, Babu Singarayan, Sunanda L. Kommula
  • Patent number: 11057863
    Abstract: A terminal device that can be connected to one or more base station devices that each form one or more beams is described. The terminal device monitors, when the terminal device is not connected to any of the one or more base station devices, a connection target beam to be used when the terminal device establishes a connection with any of the one or more base station devices; and reports, at least based on a fact that the connection target beam has transitioned, information regarding the connection target beam to a base station device that forms the connection target beam. A base station device among the one or more base station devices to execute paging of the terminal device and a beam to be used in the paging are controlled based on the information regarding the connection target beam.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: July 6, 2021
    Assignee: KDDI CORPORATION
    Inventors: Kazuya Moriwaki, Hailan Peng, Noriyuki Hashimoto, Yasuhiro Suegara
  • Patent number: 11050649
    Abstract: A method of delay measurement of a network node device is disclosed. The method includes obtaining a node delay value of a current packet when a preset time period starts. The method further includes determining, based on M+1 boundary values of preset M delay intervals, a delay interval in which the node delay value is located, and adding 1 to a value of a delay segment counter corresponding to the delay interval in which the node delay value is located, where M>1, M is a positive integer. The method further includes obtaining a node delay value of a next packet until the preset time period ends. The method further includes determining a cumulative probability Pacc.j that is greater than or equal to a target probability, and obtaining, as a delay threshold, a node delay value having the target probability.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: June 29, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiquan Zhang, Jianmin Song, Jiahong Wei
  • Patent number: 11051180
    Abstract: An electronic device receives installation information about an environment of the electronic device. For example, the installation information includes a type of installation of the electronic device, such as one of: installation on a wall, installation on a pole, installation in a stadium, or installation in street furniture. Based at least in part on the installation information, the electronic device selects a group of antenna patterns that includes a subset of potential antenna patterns. Then, the electronic device communicates, via an interface circuit in the electronic device, one or more packets or frames for another electronic device using an antenna pattern in the group of antenna patterns. Note that the electronic device determines the antenna pattern to use in subsequent communication. Moreover, the group of antenna patterns is selected based at least in part on an orientation, a location of the electronic device, or both.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: June 29, 2021
    Assignee: ARRIS Enterprises LLC
    Inventors: William Buel, Huaqing Zeng
  • Patent number: 11032198
    Abstract: A method and an apparatus are disclosed for generating an ACL table. A controller obtains a port type of each port of a first network device, and selects, based on the port type of each port, a target port whose port type is a preset type from all ports of the first network device. The controller generates a corresponding first-type access control list ACL entry for each target port, and generates one second-type ACL entry corresponding to a routing table of the first network device, where an action of the second-type ACL entry is redirecting to the routing table. The controller adds the second-type ACL entry and each first-type ACL entry to an ACL table of the first network device.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: June 8, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Feng Yuan, Tao Ma, Qinghua Yan
  • Patent number: 11026267
    Abstract: A random access preamble sending method and an apparatus is provided. The method includes sending, by user equipment, a first random access preamble to a network device, where the first random access preamble is used by the user equipment to access the network device; and when the user equipment fails in accessing the network device by using the first random access preamble, sending at least one second random access preamble to the network device, where access characteristic information of each second random access preamble is different from that of the first random access preamble, the access characteristic information includes at least one of a time length, a transmit beam, and a random access resource, and the at least one second random access preamble is used by the user equipment to access the network device.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: June 1, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mao Yan, Lei Chen
  • Patent number: 11006358
    Abstract: A data transmission coordination system and a method thereof are provided. In the method, multiple terminal devices are grouped into a first sub-group and a second sub-group. The first and the second sub-groups respectively include at least one of the terminal devices and have different data transmission modes for uploading data. The power consumption of the data transmission mode of the first sub-group is higher than that of the second sub-group. In response to the first terminal device of the sub-group conforming to a replacement condition, a second terminal device of the second sub-group replaces the first terminal device, so that the first sub-group includes the second terminal device. The replaced first terminal device is associated to the second sub-group or not able to transmit depending on an operation situation. Accordingly, a whole lifetime of the system is increased.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 11, 2021
    Assignee: Sercomm Corporation
    Inventors: Fan-Yi Kuan, Hsin-An Hou
  • Patent number: 10973045
    Abstract: Semi-persistent transmission method and apparatus are provided. The semi-persistent transmission method includes: obtaining, by user equipment UE, a semi-persistent transmission resource; determining, by the UE, a logical channel having a correspondence with the semi-persistent transmission resource; and transmitting, by the UE on the semi-persistent transmission resource, data in the logical channel having the correspondence with the semi-persistent transmission resource. The semi-persistent transmission method and apparatus can support scheduled transmission of various semi-persistent service data.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: April 6, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiao Xiao, Zhenzhen Cao
  • Patent number: 10965789
    Abstract: A method and a system for updating a first whitelist at a network node. The network node receives data packets from an Internet of Things (IoT) device and determines a predetermined identifier for the IoT device. The network node then determines whether the predetermined identifier is in the first whitelist. When the predetermined identifier is not in the first whitelist, the network node starts a first time period. When the predetermined identified is on the first whitelist, the network node determines whether the data packets are received within the first time period. When the data packets are received within the first time period, the network node identifies destination addresses of the data packets and updates the first whitelist based on the destination addresses and the predetermined identifier. The updated first whitelist is stored in non-transitory computer readable storage medium in the network node.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: March 30, 2021
    Assignee: Pismo Labs Technology Limited
    Inventors: Wan Chun Leung, Kit Wai Chau, Patrick Ho Wai Sung
  • Patent number: 10917452
    Abstract: A speech coding adjustment method in voice over long-term evolution (VoLTE) communication and a serving base station thereof are disclosed. The method includes: acquiring, by a serving base station, quality information of the VoLTE communication based on a predetermined condition; smoothening, by the serving base station, the quality information; acquiring coding information of the VoLTE communication based on the smoothened quality information, the coding information including a final speech coding mode and a corresponding code rate; and sending, by the serving base station, the coding information to a serving base station corresponding to a peer terminal, such that the serving base station and the serving base station corresponding to the peer terminal perform a speech coding adjustment for the VoLTE communication.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: February 9, 2021
    Assignee: CLOUDMINDS (SHENZHEN) ROBOTICS SYSTEMS CO., LTD.
    Inventors: William Xiao-qing Huang, Haitao Jiang, Zhenkai Wang
  • Patent number: 10833995
    Abstract: Embodiments of the present invention provide a congestion control method and apparatus based on a software defined network SDN, and an SDN controller. The method comprises: obtaining a packet_in message sent by a switch; determining a data packet included in the packet_in message; performing a first congestion control processing for a network where the SDN controller is located based on a topological structure and link information of the network when the data packet is a handshake information SYN packet for requesting to establish a TCP connection; performing a second congestion control processing for the network based on the link information when the data packet is a finish information FIN packet for responding to disconnection of a TCP connection; deleting information of a TCP connection stored in a database and corresponding to the data packet when the data packet is an FIN packet requesting to disconnect a TCP connection.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: November 10, 2020
    Assignee: BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
    Inventors: Jianxin Liao, Qi Qi, Jing Wang, Jingyu Wang, Jiannan Bao