Huawei Technologies Co., Limited

Panasonic Corporation

Panasonic Ecology Systems Guangdong Co., Ltd.

China Mobile Communications Corporation

Shufeng Shi

Yanping Zhang

Feng Liang

Linfei Shen

Fenqin Zhu

He Li

Hui Ding

Ridong Xu

Biao Zhang

Jinzhou Ye

Boqiang Luo

Wanqiang Zhang

Yuliang Zhi

Xuexia Yan

Qi Yao

Xiaobo Wu

Zaifeng Zong

Xiaoyun Zhou

Jiongjiong Gu

Dekui Sun

Deping Yang

Kai Wen

Weisheng Jin

Youyang Yu

Lin Shu

Peng Zhao

Huan Li

Bing Wei

Decong Yang

Xiaoyun Wang

Zhenyu Tao

Xiaoyan Wang

Zhengnan Zeng

Zewei Rao

Hitoshi Taya

Qian Dv Du

Leibin Wang

Hanzhong Zhou

A communication method, an apparatus, and a system in which a first session management function entity determines, based on information of a terminal group, user plane function entities accessed by terminals in a terminal group, and the first session management function entity determines a target user plane function entity based on the user plane function entities, where the target user plane function entity is used to perform communication between terminals in the terminal group. According to the method, the terminals in the terminal group are redirected to a same user plane function entity, namely, the target user plane function entity, so that communication between the terminals in the terminal group is locally implemented in the target user plane function entity. This shortens a communication path, and reduces a communication latency.

Communication method, apparatus, and system

A communication method includes a first device that receives first indication information and a service flow identifier of a protocol data unit (PDU) session from a session management network element, where the first indication information indicates the first device to determine a transmission link for a service flow of the PDU session. The first device selects the transmission link for the service flow of the PDU session based on the service flow identifier and the first indication information.

Communication method and apparatus

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

An event report sending method in which a session management network element receives an event notification request from a policy control network element, where the event notification request includes an event identifier and a notification address for receiving an event report of an event report receiving network element, and where the event report receiving network element is an application function network element or a network exposure function network element. The session management network element sends, a first message comprising the event identifier and the notification address to a user plane network element, where the first message indicates to the user plane network element to send, to the notification address, a first event report corresponding to the event identifier. Thus, the network exposure function network element sends the received first event report to the application function network element, such that the application function network element obtains the event report.

Event report sending method, apparatus, and system

A policy control method, a device, and a system, the method including receiving, by a session management network element, from a policy control network element, LAN traffic steering information corresponding to a first application, selecting one or more user plane network elements based on the LAN traffic steering information, determining policy rules corresponding to each user play network element of the user plane network elements, the policy rules being associated with steering data of the first application sent by an upstream network element, where the policy rules are further associated with sending data processed by the local application server for the first application in the target LAN to a downstream network element, and sending, by the session management network element, the corresponding policy rules to each user plane network element of the one or more user plane network elements.

Policy control method, device, and system

A method for determining a network quality of service (QoS) flow, a network element, and a system include receiving, by a session management function network element, a policy and charging control (PCC) rule from a policy control function network element, where the PCC rule includes QoS parameters, the QoS parameters include standardized QoS parameter indication information and a non-standardized QoS parameter, and the non-standardized QoS parameter includes at least one attribute comprised in a standardized QoS parameter corresponding to the standardized QoS parameter indication information and a corresponding value of the at least one attribute, and determining, by the session management function network element based on the standardized QoS parameter indication information and the non-standardized QoS parameter, a QoS flow corresponding to the PCC rule.

Method for determining network quality of service flow, network element, and system

A method, an apparatus, and a system for processing registration backup data are provided. The method includes: a Serving Call Session Control Function (S-CSCF) receives a request from a User Equipment (UE) and judges whether the request carries multi-registration information so as to decide whether to add multi-registration indication information into a Server Assignment Request (SAR) message sent to a Home Subscriber Server (HSS), which then performs operations according to whether the SAR message carries the multi-registration indication information. According to the application, unnecessary signaling interactions and unnecessary data processing between the HSS and the S-CSCF can be avoided, thereby reducing the signaling load, and saving system resources.

Method, apparatus and system for processing registration backup data

A method, a related apparatus, and a system for recovering a called service of a terminal are provided. The method includes: when a called request of a user terminal is received, querying an initial proxy-call session control function (P-CSCF) entity with which the user terminal currently registers; if it is detected that the initial P-CSCF is faulty, selecting an available P-CSCF and sending, to the available P-CSCF, a notification message that carries a redundancy identifier, where the redundancy identifier is used to instruct the available P-CSCF to trigger the user terminal to re-register with the P-CSCF; and when a registration complete message sent by the P-CSCF with which the user terminal re-registers is received, delivering the called request to the re-registered P-CSCF to bear a called service of the user terminal.

Method, related apparatus, and system for recovering called service of terminal

A communication method, an apparatus, and a system in which a first session management function entity based on information of a terminal group determines user plane function entities accessed by terminals in a terminal group, and the first session management function entity determines a target user plane function entity based on the user plane function entities, where the target user plane function entity is used to perform communication between terminals in the terminal group. According to the method, the terminals in the terminal group are redirected to a same user plane function entity, namely, the target user plane function entity, so that communication between the terminals in the terminal group is locally implemented in the target user plane function entity. This shortens a communication path, and reduces a communication latency.

Communication method, apparatus, and system for determining a target user plan function entity

In a location change reporting method, a session management function entity receives from a mobility management entity information including location change information of user equipment (UE) in a first presence reporting area (PRA), an identity of the first PRA, and an identity of a PRA set that includes the first PRA. The session management function entity identifies, based on the identity of the PRA set and locally stored PRA subscription information, a subscription entity that subscribes to location change events of the UE in the PRA set, and sends the identity of the first PRA and the location change information of the UE in the first PRA to the subscription entity.

Location change reporting method, device, and system

A policy control method includes receiving, by a policy control network element, an update request message carrying information about a first mobility management network element from the first mobility management network element, updating, by the policy control network element according to the update request message, information about a second mobility management network element in information of a policy association corresponding to a terminal that is stored in the policy control network element to information about the first mobility management network element. The policy control network updates the information about the second mobility management network element in the information of the policy association to the information about the first mobility management network element instead of deleting the policy association and re-establishing a policy association with the first mobility management network element.

Policy control method, apparatus, and system

A method, apparatus, and system for disaster recovery of an Internet Protocol (IP) Multimedia Subsystem (IMS), where the method includes: triggering a redundant Call Session Control Function (CSCF); obtaining, by the redundant CSCF, user backup data of registered IMS Private User Identities (IMPIs) that are associated with IMPUs and user service configuration data of IMS Public User Identities (IMPUs) in an IMS subscription from a network storage entity of a user; and recovering, by the redundant CSCF, a corresponding service according to the obtained user backup data of the registered IMPIs and user service configuration data of the IMPUs in the IMS subscription. Hence, the one-IMPU multi-IMPI, one-IMPI multi-IMPU, or multi-IMPI multi-IMPU service can be recovered, and this enables the user to have better service continuity experiences.

Method, apparatus, and system for disaster recovery of ims

The present disclosure provides a method which includes: receiving a message, where the message carries a parameter indicating a validity period of a short message sent to a user or indication information indicating whether a record needs to be added to MWD of a user when a short message cannot be transmitted or fails to be transmitted; determining that the short message cannot be transmitted or the short message fails to be transmitted, and a value of the parameter is 0 or the indication information indicates that the record does not need to be added to the MWD of the user when the short message cannot be transmitted or fails to be transmitted; and skipping adding the record to the MWD of the user, where the record includes an identifier of a service center for short message service serving the user. According to the method, additional signaling interaction is reduced.

Method, device, and system for optimizing short message signaling

A network element selection method and apparatus, where the method includes: receiving, by a first network element in a first communications system, a first message from a terminal device, wherein the first message is used to request to establish a session; and in response to the first message, determining, by the first network element in the first communications system, a target session management function network element based on a capability of the terminal device and third subscription information of the terminal device. According to the method, a terminal device that supports a 4G system and a 5G system and that has no interworking requirement can properly select a network element.

Network selection system and method for establishment of inter-networking session

Growing community of inventors

Xi'an, China

Shufeng Shi