Patents by Inventor Qi Bi

Qi Bi 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).

  • Publication number: 20220377591
    Abstract: The present disclosure relates to the technical field of 5G core networks, and provides a quality of service measurement method and device, a user plane function entity, and a computer-readable storage medium. The quality of service measurement method includes: a user plane function receiving a quality of service measurement request sent by a session management function, wherein the quality of service measurement request includes a trigger condition of a quality of service measurement failure and a measurement result of the quality of service measurement failure; the user plane function determining whether or not the trigger condition of the quality of service measurement failure is satisfied: and if so, the user plane function sending, to a control plane function, the measurement result of the quality of service measurement failure.
    Type: Application
    Filed: July 3, 2020
    Publication date: November 24, 2022
    Inventors: Song ZHAO, Peng CHEN, Qi BI
  • Patent number: 10014590
    Abstract: A multi-antenna array for a LTE MIMO communication system is provided in an embodiment of this invention, comprising a reflection plate and a power feed network disposed on the back of the reflection plate, a plurality of power distribution plates being arranged on the back of the reflection plate for controlling power distribution for antenna radiation units in different polarization manners respectively, the plurality of power distribution plates being disposed in upper and lower layers and are located at the geometrical center of a parallel plane of the reflection plate. The embodiment of this invention may prevent the scrambled arrangement of the power feed network in a multi-antenna array adopted in a LTE MIMO communication system, simplify power feed manner of antenna radiation units in different polarization manners, reduce complexity and the rate of errors in mass production of multi-antenna arrays of LTE MIMO communication systems, and facilitate locating faults and replacing feed circuits.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: July 3, 2018
    Assignee: China Telecom Corporation Limited
    Inventors: Qi Bi, Shenke Zhang, Meng Shi, Tao Yang, Weiliang Xie
  • Patent number: 9698494
    Abstract: A quadri-polarized antenna oscillator, a quadri-polarized antenna, and a quadri-polarized multi-antenna array are provided. The quadri-polarized antenna oscillator comprises four polarized oscillators, wherein midpoints of the four polarized oscillators are coincident; a polarization direction of a first polarized oscillator is a horizontal direction; a polarization direction of a second polarized oscillator is perpendicular to the horizontal direction; a polarization direction of a third polarized oscillator has a 45° angle with the horizontal direction; and a polarization direction of a fourth polarized oscillator has a ?45° angle with the horizontal direction.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: July 4, 2017
    Assignee: China Telecom Corporation Limited
    Inventors: Qi Bi, Weiliang Xie
  • Patent number: 9653817
    Abstract: An array antenna and a base station are provided. The array antenna comprises a plurality of linear arrays, uplink-downlink duplexers, and beam-forming networks. Each linear array is a dual-polarized linear array.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 16, 2017
    Assignee: CHINA TELECOM CORPORATION LIMITED
    Inventors: Qi Bi, Weiliang Xie, Tao Yang
  • Patent number: 9472861
    Abstract: This invention discloses a multi-mode antenna and a base station, the multi-mode antenna comprising a CDMA dual-polarized antenna for CDMA radio frequency signals and two MIMO dual-polarized antennas for LTE radio frequency signals with a plurality of linearly arranged radiation elements; the two MIMO dual-polarized antennas are respectfully vertically stacked right above and right below the center radiation element of the CDMA dual-polarized antenna; and the radiation elements in the two MIMO dual-polarized antennas are nested in or inserted between the radiation elements of the CDMA dual-polarized antenna according to the distance between the radiation elements of the CDMA dual-polarized antenna and the distance between the radiation elements of each MIMO dual-polarized antenna.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: October 18, 2016
    Assignee: China Telecom Corporation Limited
    Inventors: Qi Bi, Weiliang Xie
  • Publication number: 20160043476
    Abstract: A multi-antenna array for a LTE MIMO communication system is provided in an embodiment of this invention, comprising a reflection plate and a power feed network disposed on the back of the reflection plate, a plurality of power distribution plates being arranged on the back of the reflection plate for controlling power distribution for antenna radiation units in different polarization manners respectively, the plurality of power distribution plates being disposed in upper and lower layers and are located at the geometrical center of a parallel plane of the reflection plate. The embodiment of this invention may prevent the scrambled arrangement of the power feed network in a multi-antenna array adopted in a LTE MIMO communication system, simplify power feed manner of antenna radiation units in different polarization manners, reduce complexity and the rate of errors in mass production of multi-antenna arrays of LTE MIMO communication systems, and facilitate locating faults and replacing feed circuits.
    Type: Application
    Filed: April 15, 2013
    Publication date: February 11, 2016
    Inventors: Qi Bi, Shenke Zhang, Meng Shi, Tao Yang, Weiliang Xie
  • Publication number: 20150303589
    Abstract: A quadri-polarized antenna oscillator, a quadri-polarized antenna, and a quadri-polarized multi-antenna array are provided. The quadri-polarized antenna oscillator comprises four polarized oscillators, wherein midpoints of the four polarized oscillators are coincident; a polarization direction of a first polarized oscillator is a horizontal direction; a polarization direction of a second polarized oscillator is perpendicular to the horizontal direction; a polarization direction of a third polarized oscillator has a 45° angle with the horizontal direction; and a polarization direction of a fourth polarized oscillator has a ?45° angle with the horizontal direction.
    Type: Application
    Filed: December 31, 2014
    Publication date: October 22, 2015
    Inventors: Qi Bi, Weiliang Xie
  • Publication number: 20150255881
    Abstract: An array antenna and a base station are provided. The array antenna comprises a plurality of linear arrays, uplink-downlink duplexers, and beam-forming networks. Each linear array is a dual-polarized linear array.
    Type: Application
    Filed: September 28, 2012
    Publication date: September 10, 2015
    Inventors: Qi Bi, Weiliang Xie, Tao Yang
  • Publication number: 20140145896
    Abstract: This invention discloses a multi-mode antenna and a base station, the multi-mode antenna comprising a CDMA dual-polarized antenna for CDMA radio frequency signals and two MIMO dual-polarized antennas for LTE radio frequency signals with a plurality of linearly arranged radiation elements; the two MIMO dual-polarized antennas are respectfully vertically stacked right above and right below the centre radiation element of the CDMA dual-polarized antenna; and the radiation elements in the two MIMO dual-polarized antennas are nested in or inserted between the radiation elements of the CDMA dual-polarized antenna according to the distance between the radiation elements of the CDMA dual-polarized antenna and the distance between the radiation elements of each MIMO dual-polarized antenna.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Applicant: China Telecom Corporation Limited
    Inventors: Qi Bi, Weiliang Xie
  • Patent number: 8730923
    Abstract: A resource allocation algorithm identifies a resource hogger in a wireless communication system data sharing arrangement and control shared resource overuse by the resource hogger. In one embodiment, the base station for a given sector in the system tracks the time-slot usage of each active user in the sector. If the usage for any user reaches a predetermined hogger threshold, normal target QoS enforcement is suspended for that user to allow more time slots to be allocated to the other, non-hogger users. When the resource hogger user's usage falls below the threshold, target QoS enforcement is returned to that user. Temporarily suspending target QoS enforcement for resource hoggers and allocating the remaining resources to other users prevents resource hoggers from deteriorating performance of the entire system.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: May 20, 2014
    Assignee: Alcatel Lucent
    Inventors: Daniel Matthew Andrews, Qi Bi, Frances Jiang, Aleksandr Stolyar, Yang Yang
  • Patent number: 8665801
    Abstract: In one embodiment the method includes allocating, for a mobile, forward link resources for transmitting data over a shared forward link data channel without allocating reverse link resources for reverse link data transmission in association with the allocated forward link resources. At least a portion of the received data is repeatedly sent to the mobile on the shared forward link data channel over a time division multiple access air interface using the allocated forward link resources until an acknowledgement is received from the mobile or a number of transmissions have taken place.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: March 4, 2014
    Assignee: Alcatel Lucent
    Inventors: Qi Bi, Stan Vitebsky, Yang Yang
  • Patent number: 8605649
    Abstract: The method provides for establishing a communication session in a hierarchical communication system between a source party and at least one destination party. Hierarchical communication systems generally have communication nodes at different levels of hierarchy. In one embodiment, connection information for the communication session is stored if establishing the communication session is blocked at a node as a result of a blocking condition at the blocking node. Establishment of the communication session is initiated based on the stored connection information if the blocking condition no longer exists at the blocking node.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 10, 2013
    Assignee: Alcatel Lucent
    Inventors: Qi Bi, Stanley Vitebsky
  • Patent number: 8331941
    Abstract: The present invention provides a method of wireless communication using a mobile unit and first and second base stations. The method includes receiving, from the second base station, a notification of a switch of the first base station to the second base station. The method also includes providing at least one message to the second base station in response to receiving the notification.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: December 11, 2012
    Assignee: Alcatel Lucent
    Inventors: Qi Bi, Terry Si-Fong Cheng, Frances Jiang, Ramakrishna Vishnuvajjala, Tomas S. Yang
  • Patent number: 8203955
    Abstract: A method and apparatus for scheduling packets in an orthogonal frequency division multiple access (OFDMA) system is provided. More particularly, the presently described embodiments relate to a scheduling system whereby packets are prioritized based on packet delay information. The system also handles poor geometry users in an improved manner.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: June 19, 2012
    Assignee: Alcatel Lucent
    Inventors: Yifei Yuan, Qi Bi
  • Patent number: 8098757
    Abstract: The present invention provides a method of windowing signals in a communication system. The method includes accessing at least one first signal associated with at least one of a plurality of orthogonal frequencies and applying a window function to the at least one first signal to form at least one second signal. The at least one second signal remains substantially orthogonal to signals associated with the plurality of orthogonal frequencies.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: January 17, 2012
    Assignee: Alcatel Lucent
    Inventors: Qi Bi, Sinan Gezici, Lei Song, Yifei Yuan
  • Patent number: 8098613
    Abstract: In one embodiment of a method of managing transmission delay in a wireless communication system, a length of time over which a mobile station is permitted to re-transmit a packet or portion of a packet over a channel is controlled such that the length of time depends on at least one of a position of the mobile station, a temporal fading characteristic of the mobile station, and a radio frequency characteristic of the channel.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: January 17, 2012
    Assignee: Alcatel Lucent
    Inventors: Qi Bi, Pi-Chun Chen, Qinqing Zhang
  • Patent number: 8081686
    Abstract: At least a portion of a total spectrum bandwidth of a wireless system may be allocated to each of a plurality of users by assigning at least one unique spreading code to each of the plurality of users. At least two of the plurality of users may have different spectrum capabilities and may transmit simultaneously. Each of the assigned spreading codes may have a different code length. The number and/or the code length of the spreading codes assigned to each user may be indicative of a portion of the total spectrum bandwidth allocated to each user.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: December 20, 2011
    Assignee: Alcatel Lucent
    Inventors: Qi Bi, Yang Yang, Qinqing Zhang
  • Patent number: 7990855
    Abstract: A system for joint reverse link access and traffic channel overload control in a cellular network includes relieving the reverse link total loading to optimize resource utilization and distribution among different types of mobile device users. The cellular network includes a plurality of mobile stations that wirelessly communicate with a base station over a reverse link, using a CDMA or similar communications protocol. A joint access and traffic overload control module creates an access channel load relief plan, a traffic channel load relief plan and then relieves the total loading of the reverse link based upon both the access channel load relief plan and the traffic channel load relief plan.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: August 2, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Qi Bi, Yang Yang, Sigen Ye
  • Publication number: 20110134881
    Abstract: In one embodiment a first comparison result is determined based on a link quality metric and a first threshold value.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 9, 2011
    Inventors: Susan Wu Sanders, Qi Bi, Liwa Wang, Devesh Patel, Bee Yun Yu, Yang Yang
  • Patent number: 7899025
    Abstract: In one embodiment, a relationship is determined between radio link protocol (RLP) sequence numbers in received RLP packets and real-time protocol (RTP) sequence numbers of RTP packets represented by the received RLP packets. A RTP sequence number associated with a compressed RTP packet is determined based on the determined relationship and at least one of the RLP sequence numbers of the received RLP packet or packets forming the compressed RTP packet. The compressed RTP packet does not include a RTP sequence number.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: March 1, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Qi Bi, Qinqing Zhang