Patents by Inventor Longtao Ren

Longtao Ren 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: 9854447
    Abstract: A method and device for configuring cognitive radio system spectrum resources, relates to the field of wireless communication and solves the problem that the existing resource configuration mode influences system stability. The method includes: receiving, by a reconfiguration management node, idle spectrum resource request information transmitted by secondary user equipment, wherein the idle spectrum resource request information indicates a demand of the secondary user equipment for idle spectrum resources; and performing, by the reconfiguration management node, an idle spectrum resource configuration decision for the secondary user equipment according to current idle spectrum resource information and historical configuration information of the idle spectrum resources of the secondary user equipment.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: December 26, 2017
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Xing Liu, Yan Li, Bin Wang, Longtao Ren
  • Patent number: 9655024
    Abstract: A method and apparatus for controlling a handover in a cognitive radio system are used to control a cell handover process of a user equipment, and can hand over the user equipment to an appropriate target cell as far as possible. The method includes: a source base station receiving a measurement report send by a user equipment; the source base station controlling a handover of the user equipment according to the measurement report, radio resource management information, and reconfiguration related information. The apparatus is located in the source base station and includes a receiving module and a handover controlling module.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: May 16, 2017
    Assignee: ZTE Corporation
    Inventors: Ting Miao, Yan Li, Xing Liu, Bin Wang, Longtao Ren, Yuanyuan Zhang
  • Publication number: 20170118049
    Abstract: Disclosed is a spectrum resource allocation method, including: a secondary system management node receiving a request message sent by a secondary system device for a priority channel application qualification; and judging whether to give the priority channel application qualification to the secondary system device according to the request message, and returning a response message to the secondary system device according to the judgment result. Also disclosed are a spectrum resource allocation system and a secondary system management node.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 27, 2017
    Inventors: Ting MIAO, Longtao REN, Ruimei LI, Xing LIU, Bin WANG
  • Patent number: 9622084
    Abstract: The disclosure provides a method and system of resource reconfiguration for a cognitive-radio system. The method includes that: a reconfiguration module of a wireless communication system acquires a reconfiguration command according to a received spectrum refarming indication or by monitoring a network condition of the wireless communication system (101); and sends the reconfiguration command to a base station to implement resource reconfiguration by executing the reconfiguration command via the base station (102).
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: April 11, 2017
    Assignee: ZTE Corporation
    Inventors: Longtao Ren, Xing Liu, Yan Li, Li Zhang, Ting Miao, Dong Zhou
  • Publication number: 20170006475
    Abstract: A method and device for configuring cognitive radio system spectrum resources, relates to the field of wireless communication and solves the problem that the existing resource configuration mode influences system stability. The method includes: receiving, by a reconfiguration management node, idle spectrum resource request information transmitted by secondary user equipment, wherein the idle spectrum resource request information indicates a demand of the secondary user equipment for idle spectrum resources; and performing, by the reconfiguration management node, an idle spectrum resource configuration decision for the secondary user equipment according to current idle spectrum resource information and historical configuration information of the idle spectrum resources of the secondary user equipment.
    Type: Application
    Filed: August 25, 2014
    Publication date: January 5, 2017
    Inventors: Xing LIU, Yan LI, Bin WANG, Longtao REN
  • Patent number: 9510206
    Abstract: A spectrum resource reconfiguration method is disclosed. The method includes: after spectrum resource configuration is triggered, a spectrum resource configuration decision is generated, and spectrum resources are configured to a to-be-configured link according to the configuration decision. Also disclosed are a spectrum resource reconfiguration device and system for implementing the method. In the disclosure, a spectrum resource Database (DB) is set and stores currently available spectrum resources and used spectrum resources. In this way, when insufficient spectrum resources occur on some links or spectrum resources are unavailable, a system may configure corresponding spectrum resources to the links according to currently available spectrum resources, so that it is ensured that the links with insufficient spectrum resources have available resources, thereby ensuring development of as many services as possible.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: November 29, 2016
    Assignee: ZTE Corporation
    Inventors: Xing Liu, Yan Li, Ting Miao, Longtao Ren
  • Patent number: 9510253
    Abstract: The present disclosure provides a method for determining a reason for too late handover to a Home eNB (HeNB), and the method includes that: after completing the re-establishment link of Radio. Resource Control (RRC) with User Equipment (UE), the HeNB confirms that a Radio Link Failure (RLF) event occurs when the UE is connected with a cell of another eNodeB; the HeNB generates an RLF Indication message and transmits the RLF Indication message to the another eNodeB, wherein the RLF Indication message includes information of a Closed Subscriber Group (CSG) cell currently accessed by the UE; the another eNodeB determines the reason for too late handover of the UE to the HeNB according to the RLF Indication message. The disclosure also provides a system for determining the reason for too late handover to the HeNB. The present disclosure can determine a specific reason for the RLF, and thereby, can be more useful for improving the configuration of related parameters at the network side.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: November 29, 2016
    Assignee: ZTE CORPORATION
    Inventors: Lifeng Han, Yin Gao, Longtao Ren, Jian Zhang, Shengyao Jin
  • Patent number: 9510344
    Abstract: Provided is a cognitive radio system CRS, a base station and a method for controlling a neighbor relationship, including: a serving base station actively notifies a neighbor base station of transport layer configuration information after resource reconfiguration, the neighbor base station thus performs a maintenance operation on locally saved neighbor cell information of the serving base station, which can solve the problem that the change in the neighbor relationship affects terminal services.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: November 29, 2016
    Assignee: ZTE CORPORATION
    Inventors: Longtao Ren, Yan Li
  • Patent number: 9357483
    Abstract: A method and a device for energy saving control in the home base station environment are provided to solve the problem of energy saving control in the home base station environment. In the present invention, a source base station sends an energy saving control request to a target home base station, wherein the energy saving control request comprises the information of the target base station, the information of the source base station, and the type of the energy saving control request. After receiving the energy saving control request, the target home base station performs an energy saving control processing operation, and sends a result of the energy saving control processing to the source base station through an energy saving control response. If the energy saving control processing fails, the energy saving control response further comprises a reason for the failure and/or a wait time.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: May 31, 2016
    Assignee: ZTE CORPORATION
    Inventors: Yin Gao, Lifeng Han, Longtao Ren
  • Publication number: 20150230146
    Abstract: A method and apparatus for controlling a handover in a cognitive radio system are used to control a cell handover process of a user equipment, and can hand over the user equipment to an appropriate target cell as far as possible. The method includes: a source base station receiving a measurement report send by a user equipment; the source base station controlling a handover of the user equipment according to the measurement report, radio resource management information, and reconfiguration related information. The apparatus is located in the source base station and includes a receiving module and a handover controlling module.
    Type: Application
    Filed: August 29, 2013
    Publication date: August 13, 2015
    Applicant: ZTE CORPORATION
    Inventors: Ting Miao, Yan Li, Xing Liu, Bin Wang, Longtao Ren, Yuanyuan Zhang
  • Publication number: 20150110041
    Abstract: Provided is a cognitive radio system CRS, a base station and a method for controlling a neighbour relationship, including: a serving base station actively notifies a neighbour base station of transport layer configuration information after resource reconfiguration, the neighbour base station thus performs a maintenance operation on locally saved neighbour cell information of the serving base station, which can solve the problem that the change in the neighbour relationship affects terminal services.
    Type: Application
    Filed: June 21, 2013
    Publication date: April 23, 2015
    Inventors: Longtao Ren, Yan Li
  • Patent number: 8983392
    Abstract: The disclosure discloses a method for controlling Drive Test (DT) logged measurement, a DT system and User Equipment (UE). The method comprises the steps of: sending a logged measurement duration time to a UE by a network side or setting the logged measurement duration time by the UE itself; recording and reserving, by the UE, a measurement result obtained by DT; deleting the measurement result by the UE when the logged measurement duration time expires or the measurement result is reported during the logged measurement duration time. The disclosure makes the UE more efficient in reporting the measurement result and managing the storage space, thus saving memory space.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: March 17, 2015
    Assignee: ZTE Corporation
    Inventors: Longtao Ren, Lifeng Han, Yin Gao
  • Publication number: 20140211654
    Abstract: A spectrum resource reconfiguration method is disclosed. The method includes: after spectrum resource configuration is triggered, a spectrum resource configuration decision is generated, and spectrum resources are configured to a to-be-configured link according to the configuration decision. Also disclosed are a spectrum resource reconfiguration device and system for implementing the method. In the disclosure, a spectrum resource Database (DB) is set and stores currently available spectrum resources and used spectrum resources. In this way, when insufficient spectrum resources occur on some links or spectrum resources are unavailable, a system may configure corresponding spectrum resources to the links according to currently available spectrum resources, so that it is ensured that the links with insufficient spectrum resources have available resources, thereby ensuring development of as many services as possible.
    Type: Application
    Filed: June 29, 2012
    Publication date: July 31, 2014
    Applicant: ZTE Corporation
    Inventors: Xing Liu, Yan Li, Ting Miao, Longtao Ren
  • Publication number: 20140120940
    Abstract: The disclosure provides a method and system of resource reconfiguration for a cognitive-radio system. The method includes that: a reconfiguration module of a wireless communication system acquires a reconfiguration command according to a received spectrum refarming indication or by monitoring a network condition of the wireless communication system (101); and sends the reconfiguration command to a base station to implement resource reconfiguration by executing the reconfiguration command via the base station (102).
    Type: Application
    Filed: April 12, 2012
    Publication date: May 1, 2014
    Applicant: ZTE CORPORATION
    Inventors: Longtao Ren, Xing Liu, Yan Li, Li Zhang, Ting Miao, Dong Zhou
  • Publication number: 20130128795
    Abstract: A method and a device for energy saving control in the home base station environment are provided to solve the problem of energy saving control in the home base station environment. In the present invention, a source base station sends an energy saving control request to a target home base station, wherein the energy saving control request comprises the information of the target base station, the information of the source base station, and the type of the energy saving control request. After receiving the energy saving control request, the target home base station performs an energy saving control processing operation, and sends a result of the energy saving control processing to the source base station through an energy saving control response. If the energy saving control processing fails, the energy saving control response further comprises a reason for the failure and/or a wait time.
    Type: Application
    Filed: August 4, 2011
    Publication date: May 23, 2013
    Applicant: ZTE CORPORATION
    Inventors: Yin Gao, Lifeng Han, Longtao Ren
  • Publication number: 20130005330
    Abstract: The present disclosure provides a method for determining a reason for too late handover to a Home eNB (HeNB), and the method includes that: after completing the re-establishment link of Radio. Resource Control (RRC) with User Equipment (UE), the HeNB confirms that a Radio Link Failure (RLF) event occurs when the UE is connected with a cell of another eNodeB; the HeNB generates an RLF Indication message and transmits the RLF Indication message to the another eNodeB, wherein the RLF Indication message includes information of a Closed Subscriber Group (CSG) cell currently accessed by the UE; the another eNodeB determines the reason for too late handover of the UE to the HeNB according to the RLF Indication message. The disclosure also provides a system for determining the reason for too late handover to the HeNB. The present disclosure can determine a specific reason for the RLF, and thereby, can be more useful for improving the configuration of related parameters at the network side.
    Type: Application
    Filed: April 26, 2010
    Publication date: January 3, 2013
    Applicant: ZTE CORPORATION
    Inventors: Lifeng Han, Yin Gao, Longtao Ren, Jian Zhang, Shengyao Jin
  • Publication number: 20120329402
    Abstract: The disclosure discloses a method for controlling Drive Test (DT) logged measurement, a DT system and User Equipment (UE). The method comprises the steps of: sending a logged measurement duration time to a UE by a network side or setting the logged measurement duration time by the UE itself; recording and reserving, by the UE, a measurement result obtained by DT; deleting the measurement result by the UE when the logged measurement duration time expires or the measurement result is reported during the logged measurement duration time. The disclosure makes the UE more efficient in reporting the measurement result and managing the storage space, thus saving memory space.
    Type: Application
    Filed: January 6, 2011
    Publication date: December 27, 2012
    Applicant: ZTE CORPORATION
    Inventors: Longtao Ren, Lifeng Han, Yin Gao