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).
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Patent number: 9854447Abstract: 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: GrantFiled: August 25, 2014Date of Patent: December 26, 2017Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.Inventors: Xing Liu, Yan Li, Bin Wang, Longtao Ren
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Patent number: 9655024Abstract: 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: GrantFiled: August 29, 2013Date of Patent: May 16, 2017Assignee: ZTE CorporationInventors: Ting Miao, Yan Li, Xing Liu, Bin Wang, Longtao Ren, Yuanyuan Zhang
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Publication number: 20170118049Abstract: 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: ApplicationFiled: October 22, 2014Publication date: April 27, 2017Inventors: Ting MIAO, Longtao REN, Ruimei LI, Xing LIU, Bin WANG
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Patent number: 9622084Abstract: 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: GrantFiled: April 12, 2012Date of Patent: April 11, 2017Assignee: ZTE CorporationInventors: Longtao Ren, Xing Liu, Yan Li, Li Zhang, Ting Miao, Dong Zhou
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Publication number: 20170006475Abstract: 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: ApplicationFiled: August 25, 2014Publication date: January 5, 2017Inventors: Xing LIU, Yan LI, Bin WANG, Longtao REN
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Patent number: 9510206Abstract: 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: GrantFiled: June 29, 2012Date of Patent: November 29, 2016Assignee: ZTE CorporationInventors: Xing Liu, Yan Li, Ting Miao, Longtao Ren
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Patent number: 9510253Abstract: 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: GrantFiled: April 26, 2010Date of Patent: November 29, 2016Assignee: ZTE CORPORATIONInventors: Lifeng Han, Yin Gao, Longtao Ren, Jian Zhang, Shengyao Jin
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Patent number: 9510344Abstract: 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: GrantFiled: June 21, 2013Date of Patent: November 29, 2016Assignee: ZTE CORPORATIONInventors: Longtao Ren, Yan Li
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Patent number: 9357483Abstract: 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: GrantFiled: August 4, 2011Date of Patent: May 31, 2016Assignee: ZTE CORPORATIONInventors: Yin Gao, Lifeng Han, Longtao Ren
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Publication number: 20150230146Abstract: 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: ApplicationFiled: August 29, 2013Publication date: August 13, 2015Applicant: ZTE CORPORATIONInventors: Ting Miao, Yan Li, Xing Liu, Bin Wang, Longtao Ren, Yuanyuan Zhang
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Publication number: 20150110041Abstract: 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: ApplicationFiled: June 21, 2013Publication date: April 23, 2015Inventors: Longtao Ren, Yan Li
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Patent number: 8983392Abstract: 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: GrantFiled: January 6, 2011Date of Patent: March 17, 2015Assignee: ZTE CorporationInventors: Longtao Ren, Lifeng Han, Yin Gao
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Publication number: 20140211654Abstract: 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: ApplicationFiled: June 29, 2012Publication date: July 31, 2014Applicant: ZTE CorporationInventors: Xing Liu, Yan Li, Ting Miao, Longtao Ren
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Publication number: 20140120940Abstract: 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: ApplicationFiled: April 12, 2012Publication date: May 1, 2014Applicant: ZTE CORPORATIONInventors: Longtao Ren, Xing Liu, Yan Li, Li Zhang, Ting Miao, Dong Zhou
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Publication number: 20130128795Abstract: 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: ApplicationFiled: August 4, 2011Publication date: May 23, 2013Applicant: ZTE CORPORATIONInventors: Yin Gao, Lifeng Han, Longtao Ren
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Publication number: 20130005330Abstract: 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: ApplicationFiled: April 26, 2010Publication date: January 3, 2013Applicant: ZTE CORPORATIONInventors: Lifeng Han, Yin Gao, Longtao Ren, Jian Zhang, Shengyao Jin
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Publication number: 20120329402Abstract: 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: ApplicationFiled: January 6, 2011Publication date: December 27, 2012Applicant: ZTE CORPORATIONInventors: Longtao Ren, Lifeng Han, Yin Gao