Patents by Inventor Ruchuan Du
Ruchuan Du 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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Publication number: 20250227512Abstract: This application discloses a communication method and apparatus. The method includes a core network element obtaining first information of a target terminal device, where the first information may be used to determine second information, and the second information indicates a storage area corresponding to a first operation in the target terminal device. The core network element may send the second information and indication information of the first operation to the target terminal device, and receive a result of performing the first operation by the target terminal device based on the second information. According to the disclosed technology, the terminal device can determine the storage area corresponding to the first operation, thereby improving efficiency of operating the terminal device.Type: ApplicationFiled: March 28, 2025Publication date: July 10, 2025Inventors: Ting LIAO, Zaifeng ZONG, Ruchuan DU, Xiaochun ZHENG, Xiaoyun ZHOU
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Patent number: 12200484Abstract: A communication method and a communications device, where the communication method includes: When a user equipment roams from a first network to a second network, a first core network device receives a first request, where the first request is a user authentication request or an authentication data request, where the first request carries an authentication vector request indication, where the second network is a 5G standalone network, where the first network is a 5G non-standalone network, and where the first core network device is in the first network. The first core network device generates an authentication vector quintet based on the authentication vector request indication, where a 0th bit of an authentication management field in the authentication vector quintet is set to 1. The first core network device sends a response to the first request, where the response to the first request carries the authentication vector quintet.Type: GrantFiled: September 30, 2021Date of Patent: January 14, 2025Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Fei Li, Ruchuan Du
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Patent number: 11611930Abstract: A method to reduce signaling interaction in an access process of a terminal includes: receiving, by a convergent network device, an access request message from a first access device on a first network, where the access request message carries a first globally unique temporary identity (GUTI) of a terminal, which is an old GUTI on the first network or a GUTI on the first network and obtained by mapping a second GUTI on a second network; determining, by the convergent network device, a first target context of the terminal on the first network based on the first GUTI and a device identifier corresponding to the convergent network device when serving as a mobility management device; and sending, by the convergent network device, an access response message to the first access device to indicate that the terminal has successfully accessed the first network.Type: GrantFiled: December 23, 2020Date of Patent: March 21, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jing Chen, Ruchuan Du
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Patent number: 11432218Abstract: A converged network device: receives a handover requirement from a first access device in a first network, where the handover requirement carries an identifier of a second access device in a second network or an identity of a tracking area served by the second access device; determines, based on the identifier of the second access device or the identity of the tracking area served by the second access device, that the second access device is managed by the converged network device; sends a handover request to the second access device, where the handover request is used to request the second access device to prepare a related resource for the terminal; sends a handover command to the first access device, where the handover command is used to instruct to hand over the terminal to the second access device; and receives a handover notification from the second access device.Type: GrantFiled: November 30, 2020Date of Patent: August 30, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Jing Chen, Ruchuan Du, Caixia Qi
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Publication number: 20220030428Abstract: A communication method and a communications device, where the communication method includes: When a user equipment roams from a first network to a second network, a first core network device receives a first request, where the first request is a user authentication request or an authentication data request, where the first request carries an authentication vector request indication, where the second network is a 5G standalone network, where the first network is a 5G non-standalone network, and where the first core network device is in the first network. The first core network device generates an authentication vector quintet based on the authentication vector request indication, where a 0th bit of an authentication management field in the authentication vector quintet is set to 1. The first core network device sends a response to the first request, where the response to the first request carries the authentication vector quintet.Type: ApplicationFiled: September 30, 2021Publication date: January 27, 2022Inventors: Fei Li, Ruchuan Du
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Publication number: 20210112491Abstract: A method to reduce signaling interaction in an access process of a terminal includes: receiving, by a convergent network device, an access request message from a first access device on a first network, where the access request message carries a first globally unique temporary identity (GUTI) of a terminal, which is an old GUTI on the first network or a GUTI on the first network and obtained by mapping a second GUTI on a second network; determining, by the convergent network device, a first target context of the terminal on the first network based on the first GUTI and a device identifier corresponding to the convergent network device when serving as a mobility management device; and sending, by the convergent network device, an access response message to the first access device to indicate that the terminal has successfully accessed the first network.Type: ApplicationFiled: December 23, 2020Publication date: April 15, 2021Inventors: Jing CHEN, Ruchuan DU
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Publication number: 20210084554Abstract: A converged network device: receives a handover requirement from a first access device in a first network, where the handover requirement carries an identifier of a second access device in a second network or an identity of a tracking area served by the second access device; determines, based on the identifier of the second access device or the identity of the tracking area served by the second access device, that the second access device is managed by the converged network device; sends a handover request to the second access device, where the handover request is used to request the second access device to prepare a related resource for the terminal; sends a handover command to the first access device, where the handover command is used to instruct to hand over the terminal to the second access device; and receives a handover notification from the second access device.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Inventors: Jing Chen, Ruchuan Du, Caixia Qi
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Patent number: 10673960Abstract: Embodiments of the present disclosure provide a method and an apparatus for determining gateway information. A first device obtains first information of user equipment, where the first information of the user equipment is used to indicate an area in which the user equipment subscribes to a service, and the first device determines gateway information corresponding to a first domain name, where the first domain name includes the first information of the user equipment. The first domain name includes the first information of the user equipment, and the first information is used to indicate the area in which the user equipment subscribes to the service. Compared with a method in which a number segment is used to generate a domain name, this reduces a quantity of domain names that need to be configured and maintained, and reduces maintenance costs of an operator.Type: GrantFiled: June 16, 2017Date of Patent: June 2, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yu Zhong, Ruchuan Du, Caixia Qi, Yangming Lv
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Publication number: 20170289279Abstract: Embodiments of the present disclosure provide a method and an apparatus for determining gateway information. A first device obtains first information of user equipment, where the first information of the user equipment is used to indicate an area in which the user equipment subscribes to a service, and the first device determines gateway information corresponding to a first domain name, where the first domain name includes the first information of the user equipment. The first domain name includes the first information of the user equipment, and the first information is used to indicate the area in which the user equipment subscribes to the service. Compared with a method in which a number segment is used to generate a domain name, this reduces a quantity of domain names that need to be configured and maintained, and reduces maintenance costs of an operator.Type: ApplicationFiled: June 16, 2017Publication date: October 5, 2017Inventors: Yu Zhong, Ruchuan Du, Caixia Qi, Yangming Lv