Huawei Technologies Co., Limited

Zte Corporation

Xi'an Zhongxing New Software Co., Ltd.

Zte (USA) Inc.

Huawei Technoloiges Co., Ltd.

Zaifeng Zong

Fenqin Zhu

Xiaoyun Zhou

Jinguo Zhu

Wenfu Wu

Jing Wen Wang

Shilin You

Hao Jing

Tong Rui

Qi Yao

Shuang Liang

Na Zhou

Jin Peng

Zhaoji Lin

Jiyan Cai

Yuzhen Huo

Hongjun Liu

Yifeng Bi

Yunyin Zhang

Shufeng Shi

Qianghua Zhu

Caixia Qi

Li Zhu

Jun Song

Chunhui Zhu

Mirko Schramm

Jianxin Jia

Han Zhou

Hui Zhang

Ying Hu

Lin Shu

Zhijun Li

Jing Wang

Chengchen Zhang

Fei Lu

Hancheng Li

Min Fang

Wei Meng

Dekui Sun

Zhongyu Gu

Zhenyu Tao

Wenqiang Li

Guoyan Liu

Se Wu

Weibin Wang

Minya Ye

Xiliang Liu

Tricci So

Jianye Liu

Jinhua Wu

Aiyan Qu

Fangting Zheng

Jun Meng

XiaoDong Zhu

Yingzhe Wu

Youchun Zhao

Yaoqiang Xu

Wenqi Cui

Yuhong Qiang

Embodiments of this application disclose a communication method, apparatus, and system. An example communication method includes: receiving, by an access network device from an access and mobility management function network element, information indicating to activate a multicast session corresponding to a multicast service; and sending, by the access network device based on the information, a paging message to a terminal in a radio resource control_inactive (RRC_inactive) state in the multicast session corresponding to the multicast service.

Communication method, apparatus, and system

An application relocation method and apparatus, to accurately determine a determined target AS and therefore reduce a delay in accessing an application server by a UE. A source application function (AF) obtains first information, where the first information is location information of the UE after a user plane path of a protocol data unit (PDU) session of the UE changes. The source AF determines a target application server (AS) based on the first information.

Application relocation method and apparatus

A communication method implemented by an apparatus includes that a source access network element sends information of a unicast quality of service (QoS) flow of a protocol data unit (PDU) session corresponding to a multicast QoS flow of a multicast broadcast service (MBS) to a target access network element in a handover procedure. The target access network element forwards the information to a session management network element. The session management network element then indicates a user plane network element connected to the target access network element to send data of the MBS to a terminal device through the target access network element and by using a resource of the unicast QoS flow corresponding to the multicast QoS flow of the MBS.

Communication method and apparatus for sending a handover request

Embodiments of this application provide a method for detecting an unauthorized uncrewed aerial vehicle, an apparatus, and a system. An AMF sends a tracking indication message to a network device, where the tracking indication message is used to indicate to report attribute information of user equipment in a coverage area of the network device when the attribute information of the user equipment meets a preset condition; and obtains the attribute information of the user equipment. In this way, after the attribute information of the user equipment is obtained, an identity status of the user equipment may be identified based on the attribute information of the user equipment, that is, whether the user equipment is an unauthorized uncrewed aerial vehicle is identified. This implements detection on an unauthorized uncrewed aerial vehicle that has accessed the 3GPP network.

Method for detecting unauthorized uncrewed aerial vehicle, apparatus, and system

Embodiments of this application provide a communication method and apparatus, and a device. An example method includes: A base station receives a first message from a first network device, the first message includes first indication information, and the first indication information indicates a multicast session. The base station sends radio bearer information corresponding to the multicast session to a terminal device based on the first message, where the first message includes information indicating the terminal device, and where the radio bearer information indicates to the terminal device to join the multicast session.

Communication method and apparatus, and device

This application provides a communication method, apparatus, and system for a voice service. The method includes: A session management network element determines that a terminal device is to be handed over from a first network to a second network. The session management network element waits until a first moment to send a request message to a mobility management network element in the second network, where the request message is used to request to set up a first bearer for a voice service of the terminal device.

Communication method, apparatus, and system for voice service

Embodiments of this application disclose a communication method and apparatus, and the communication method and apparatus are applicable to a system for interworking between a first network and a second network. In one example, a first access management network element in the first network sends indication information to a session management network element in the first network, so that the session management network element feeds back context information corresponding to a bearer that a second access management network element in the second network supports.

Communication method and apparatus

A route configuration method includes that after a first terminal moves out of a service scope of a user plane function (UPF) that currently provides a service for the first terminal, a first session management function (SMF) inserts a first intermediate UPF (I-UPF) into a user plane path of the first terminal, and configures, for the first I-UPF, a first routing rule corresponding to a second terminal. The first routing rule is used to send a packet whose destination address information is address information of the second terminal to a second anchor UPF (A-UPF). Therefore, a packet with a destination address information that is the address information of the second terminal can be directly forwarded by the first I-UPF to the first A-UPF, instead of being forwarded by the first I-UPF to the second A-UPF through the first A-UPF.

Route configuration method and apparatus

Embodiments of this application provide a reporting information sending method, an apparatus, and a system. The method includes: A user plane network element receives, from a first access network element, a first message including an identifier of a first quality of service flow QoS flow and first indication information, where the first indication information is used to indicate whether a quality of service QoS requirement of the first QoS flow can be satisfied; and sends first reporting information including second indication information to an application function network element based on the first message, where the second indication information is used to indicate whether a QoS requirement of a service data flow of an application can be satisfied, and the first QoS flow is used to transmit the service data flow of the application corresponding to the application function network element.

Reporting information sending method, apparatus, and system

This application provides a multicast service transmission method and apparatus, to deliver a multicast service regardless of whether there is a device supporting multicast in a system, so as to improve flexibility and reliability of the multicast service transmission. The method performed by a session management network element includes: receiving a first message or a second message, where the first message requests to add a terminal device to a multicast service, the second message is used to update a PDU session of the terminal device, and the PDU session is associated with the multicast service; and determining, based on multicast capability information of the terminal device and/or multicast capability information of an access network device, a delivery mode of the multicast service, where the access network device is an access network device currently accessed by the terminal device or a target access network device of the terminal device.

Multicast service transmission method and apparatus

A method includes: receiving first information, where the first information indicates a data network to which a first anchor user plane function (UPF) network element managed by a second session management function (SMF) network element is connected; determining based on the first information, first rule information to be executed by a first network element managed by the second SMF network element, where the first network element includes at least one of the first anchor UPF network element or a branching point connected to the first anchor UPF network element, where the branching point is a UPF network element having a traffic offload function, where the first rule information indicates a processing method to be performed on a data packet of a first application, and where the data packet of the first application is transmitted through the first anchor UPF network element; and sending second information including the first rule information.

Policy management method and apparatus

A method, an apparatus, and a system for selecting a session management network element, where the method includes: A mobility management network element determines a first DNAI corresponding to a first session of a terminal device. The mobility management network element selects, for the first session of the terminal device, a first session management network element that supports all or a part of DNAIs in the first DNAI. Based on this solution, the mobility management network element selects the session management network element for the terminal device. The session management network element supports all or a part of the DNAIs in the first DNAI. Therefore, a user plane network element selected by the session management network element also supports all or a part of the DNAIs in the first DNAI, such that a proper session management network element is selected for the terminal device.

Method, apparatus, and system for selecting session management network element

The present disclosure relates to session establishment methods, systems, and devices. One example method includes obtaining, by a first mobility management entity, information about a packet data network (PDN) connection that has been established when a terminal accesses an evolved packet core (EPC) network, and obtaining, by the first mobility management entity, single network slice selection assistance information (S-NSSAI) of a network slice corresponding to the PDN connection.

Session establishment method and system, and device

Embodiments of the prevent invention provide a network access authentication method and device. The method comprises: receiving an authentication request message sent by a first serving network, wherein the authentication request message carries a user equipment pseudonym identifier generated by a user equipment; determining whether a local user equipment pseudonym identifier is asynchronous with the user equipment pseudonym identifier generated by the user equipment; and obtaining, if the determination result is yes, an encrypted international mobile subscriber identity (IMSI) to carry out network access authentication on the user equipment. The embodiments of the present invention can solve the problem that a network access process in the related art does not provide a processing method for the case where the user equipment pseudonym identifier in the user equipment is asynchronous with the user equipment pseudonym identifier in a home network.

Network access authentication method and device

A method and an apparatus for selecting a session management network element, where a mobility management network element may obtain information about one or more first session management network elements, and support selecting a session management network element in a home routed mode or an enhanced topology mode.

Method and apparatus for selecting session management network element

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Shenzhen, China

Zaifeng Zong