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公开(公告)号：US20230020443A1
公开(公告)日：2023-01-19
申请号：US17945258
申请日：2022-09-15
发明人： Yaxin Wang , Yan Li
IPC分类号： H04L12/18 , H04L67/141 , H04W76/10
摘要： Embodiments of this application provide a message forwarding method and an apparatus, so that a message for joining a multicast group is sent to a multicast user plane network element, and the multicast user plane network element is triggered to establish a tunnel for transmitting multicast data between the multicast user plane network element and an application server. The method may include: a multicast session management network element receives the message that indicates that a terminal is joining the multicast group; and when the terminal is the 1st terminal the multicast group, sends, to the multicast user plane network element, a message that requests to establish the tunnel for transmitting the multicast data between the multicast user plane network element and the application server.
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公开(公告)号：US11502990B2
公开(公告)日：2022-11-15
申请号：US17373390
申请日：2021-07-12
IPC分类号： H04L29/12 , H04L12/841 , H04L61/5053 , H04L47/28
摘要： A domain name access method and a device are described. As described herein, a domain name server (DNS) server performs resolution on a domain name requested by the terminal device. The DNS server may then send an internet protocol (IP) address of an application server obtained through the resolution and use condition information to the terminal device. With this, communication efficiency of the terminal device can be improved, and waste of transmission resources in a communications system is also avoided.
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公开(公告)号：US20220330005A1
公开(公告)日：2022-10-13
申请号：US17851226
申请日：2022-06-28
发明人： Fangyuan Zhu , Yan Li , Jianning Liu
摘要： Embodiments of this application provide a roaming method. The method includes: A terminal device accesses a second PLMN when the terminal device cannot access a first PLMN, where a dynamic roaming agreement between the second PLMN and the first PLMN is enabled; the terminal device receives indication information from the second PLMN, where the indication information is used to indicate to disable the dynamic roaming agreement between the second PLMN and the first PLMN; and the terminal device sends an access request message to the first PLMN based on the indication information.
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公开(公告)号：US11463530B2
公开(公告)日：2022-10-04
申请号：US16884356
申请日：2020-05-27
发明人： Yongcui Li , Yan Li
IPC分类号： H04L12/14 , H04L67/146 , H04L41/0893 , H04L69/329 , H04M15/00
摘要： A session processing method comprising: receiving, by a policy control function network element from an application function network element, a request for determining policy information, wherein the request comprises a continuity request of an application (APP); sending, by the policy control function network element, the policy information to a session management function network element; receiving, by the session management function network element, the policy information from the policy control function network element; and processing, by the session management function network element, a session according to the policy information.
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公开(公告)号：US11381961B2
公开(公告)日：2022-07-05
申请号：US16775903
申请日：2020-01-29
发明人： Qianghua Zhu , Ruizhi Liu , Yan Li
IPC分类号： H04W8/26 , H04W76/20 , H04L61/5007 , H04L61/5053
摘要： This application relates to the field of communications technologies. This application discloses a method, an apparatus, a network device, and a system for releasing an IP (Internet protocol) address, to resolve a problem that a time at which the IP address is released is not precise. The method includes: determining, by the first network device, that a PDU session anchor needs to be relocated from a first user plane function entity, where the first user plane function entity is the PDU session anchor of a first PDU session of a terminal; determining, by the first network device, that a first IP address of the terminal is no longer used, where the first IP address is an IP address used by the terminal in the first PDU session; and releasing, by the first network device, the first IP address.
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公开(公告)号：US11350315B2
公开(公告)日：2022-05-31
申请号：US16864585
申请日：2020-05-01
发明人： Fangyuan Zhu , Yan Li , Yang Xin
摘要： This application provides a communication method and a network device. The communication method includes: obtaining, by a first network device, one or more priorities of one or more network slices in a first network slice set for providing a service to an application; and sending, by the first network device, a correspondence between the one or more priorities and the one or more network slices in the first network slice set to a second network device, where a terminal route selection policy on a terminal is updated based on the correspondence.
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公开(公告)号：US11330493B2
公开(公告)日：2022-05-10
申请号：US16839652
申请日：2020-04-03
发明人： Yongcui Li , Yan Li , Ruizhi Liu , Hui Ni
摘要： A transmission control method including in a re-allocation process of a first user plane function network element to a second user plane function network element, a session management function network element sends a respective session modification request to each anchor user plane function network element of a plurality of anchor user plane function network elements, where each session modification request includes information about the second user plane function network element; and indicates to only a first anchor user plane function network element in the plurality of anchor user plane function network elements to send an end marker; or sends the end marker to only the first anchor user plane function network element.
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公开(公告)号：US11310801B2
公开(公告)日：2022-04-19
申请号：US16588146
申请日：2019-09-30
摘要： The present disclosure relates to communication methods, core network devices, and access network devices. One example method includes receiving, by a core network device, a first message from an access network device, where the first message carries information used to indicate a slice supported by the access network device, and determining, by the core network device, a location area identity list of user equipment UE based on the information used to indicate the slice supported by the access network device.
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59.发明授权公开(公告)号：US11190987B2
公开(公告)日：2021-11-30
申请号：US16778172
申请日：2020-01-31
发明人： Fangyuan Zhu , Yan Li , Shiyong Tan
摘要： This application is directed to a method and an apparatus for associating an application with a network slice, and a communications system. The method includes: obtaining, by a terminal, display instruction information, an identifier of a first network slice that the terminal is allowed to access, and service feature information corresponding to the first network slice. The method further includes: displaying the service feature information corresponding to the first network slice on a first display interface of the terminal based on the display instruction information, and generating a first network slice selection policy when detecting an operation of associating a first application with the first display interface. The first network slice selection policy can include a mapping relationship between the first application and the identifier of the first network slice corresponding to the first display interface.
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公开(公告)号：US11190978B2
公开(公告)日：2021-11-30
申请号：US16677843
申请日：2019-11-08
发明人： Wei Lu , Hui Ni , Yan Li , Weisheng Jin
摘要： A data processing method, a terminal device, and a network device are provided, to provide a processing manner of an application data packet in a fourth mode. In this application, the terminal device first obtains the first information. The first information includes the processing manner of the application data packet in the fourth mode. Therefore, the terminal device knows how to process the data packet in the fourth mode, and further processes the terminal device in the determined processing manner.
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