Huawei Technologies Co., Limited

Huawei Technology Co., Ltd.

Invt Spe LLC

Dongming Zhu

Jiongjiong Gu

Yan Li

Fenqin Zhu

Xiaoqin Duan

Hui Li

Shuang Liang

Jie Xu

Shibi Huang

Hai Bo Zhang

Xiao Wang

Hengliang Zhang

Yajuan Wu

Li Wen

Baofeng Zhang

Xiaoyan He

Jianfeng Zhong

Songhai Ye

Chunyan Ding

Jincheng Li

Youzhu Shi

Hong Xie

Geng Wang

Ming Lin

Peili Xu

Jincheng Wang

Shumin Cheng

Rujie Shao

Xiaoqiang Xie

A method and a system for maintaining session continuity, in which the system includes a Handover Source Function (HOSF), a Handover Destination Function (HODF), a Handover Anchor Function-Control Plane (HOAF-CP) and a Handover Anchor Function-User Plane (HOAF-UP). The method includes a first user establishing a connection through the HOSF with the HOAF-CP and the HOAF-UP which correspond to a second user, so as to establish a session with the second user. The method further includes that, during session handover, the HODF that corresponds to the HOSF establishing another connection with the HOAF-CP and HOAF-UP though which the first user continues the session with the second user, so as to maintain the session continuity. When access address or access technology of the terminal changes, or even the terminal changes during a session, the method and the system can logically replace the connection before the handover with a new connection to ensure the session continuity.

Method and system for maintaining session continuity when changes occur at the terminal during a session

The present invention discloses a method of implementing UE capability exchange and a method of route control for parallel IMS and CS services in communication system, so as to distinguish among multiple UEs sharing a same IMPU during capability exchange and route control. Said method comprises: each of UEs involved in capability exchange sending its capability information to the opposite party respectively; the opposite party storing these information as well as the correlation between the information and the service ID; The UE including equipment ID of the opposite UE in an initiated service request; service control function entity in the network utilizing the equipment ID to query the established correlation among equipment ID, service ID, and address of the UE, so as to determine the address of the destination UE and route the service request to the destination UE. Said equipment ID identifies effectively a UE in the network.

Method of implementing UE capability exchange and route control for parallel IMS and CS services

A method, system and apparatus for providing access mode selection to multimode terminal are disclosed. After selecting an access mode according to a certain policy, a routing decision entity correspondingly instructs a routing execution entity to perform a call connection in the selected access mode. The method for providing access mode selection to multimode terminal includes the following steps: (1) when establishing a registration connection, a terminal notifies related information of a current access network type to a network side; and (2) when performing a call connection to a called party, a routing decision entity on the network side selects the access mode and correspondingly instructs a routing execution entity to perform the call connection according to the related information and the selected access mode.

Method, system and apparatus for providing access mode selection to multimode terminal

A method and system for providing a subscriber with an intelligent service provides the subscriber of an IP Multimedia Subsystem (IMS) domain with special intelligent services of multiple intelligent platforms or convergent services. In the present invention an IP Multimedia Service Switching Function (IM-SSF) that supports an intelligent control protocol other than a Customized Application for Mobile network Enhanced Logic (CAMEL) Application Part (CAP) protocol is added into the IMS. The IM-SSF triggers the intelligent services through the protocol other than CAP to a Service Control Function (SCF) of corresponding intelligent platform according to obtained subscription information upon receipt of a session establish request related to a served subscriber; the subscription information can be pre-configured in the IM-SSF, or downloaded by the IM-SSF from a Home Subscriber Server (HSS) of the subscriber.

Method and system for providing users with intelligent services

A method, a system, and an apparatus for creating a Content-on-Demand (CoD) service are disclosed herein. The method includes receiving a Session Initiation Protocol (SIP) service request sent by a User Equipment (UE); converting the SIP service request into a Real-Time Streaming Protocol (RTSP) service request, and sending the RTSP service request to a server; receiving an RTSP service response sent by the server; and converting the RTSP service response into a SIP service response, and sending the SIP service response to the UE to create the CoD service between the UE and the server.

Method, system, and apparatus for creating content-on-demand service

A method includes obtaining, by an HSS, information related to a user subscribed IMS communication service identifier, and sending information of a user subscribed IMS communication service identifier to a SID-requiring network entity according to the information related to the user subscribed IMS communication service identifier.

Method, system and apparatus for using IMS communication service identifier

A method for establishing association-control relations includes these steps: An access adapting unit acquires subscription information of the user through a mobile application part (MAP) message, an SH interface message, or a Cx interface message; and acquires information indicating that the user is an ICS user from the subscription information of the user. A system, an access adapting unit, and an IMS CS control function (ICCF) for establishing association-control relations are also provided. In embodiments of the present invention, an access adapting unit such as a local-CS access adaptation function-network (L-CAAF-n) may know whether a user is an IMS centralized service (ICS) user and acquire the ICCF address information so that association-control relations may be established between the L-CAAF-n and the ICCF.

Method, system, and device for establishing association-control relations

A CS domain call terminating system, includes a routing-controlled determination module that determines a call which has been subject to routing control in accordance with information carried in a received call initiation message. The routing-controlled determination module sends routing-controlled information of the call to a subsequent call flow control module, and the subsequent call flow control module determines and executes a subsequent call flow of the call in accordance with the received routing-controlled information. A network entity can obtain the routing-controlled information of the call during CS domain call termination of the invention, thereby avoiding repeated routing control and an indefinite subsequent call flow in the CS domain call terminating flow.

CS domain call terminating system, method and network device

A system, method, and apparatus for providing multimedia session continuity such that support is provided for a handover of a multimedia session at a multi-mode terminal between bearers of different access modes. The system includes: a remote UE; an MCC UE, adapted to initiate a handover request of the multimedia session between a combination bearer and a multimedia bearer; an MCC, adapted to generate a multimedia handover indication and send it to a DTF according to the handover context information; and the DTF, adapted to carry out a media negotiation with the remote UE based on the multimedia handover indication, and thus the multimedia session between the MCC and the DTF is handed over between different access modes.

System, method, and apparatus for providing multimedia session continuity

A method for making a terminating network domain selection, applied in a network system including a CS network and an IMS. The method includes: receiving an IMS service request destined to a served user; judging whether the service request is appropriate to be delivered to the CS network according to a service category of the IMS service request, making a terminating network domain selection according to terminating network domain selection related factors and performing subsequent delivering processes according to the determination of the terminating network domain selection if determining that the IMS service request is appropriate to be delivered to the CS network. The present disclosure also discloses a communication apparatus and a network system.

Method, apparatus and network system for making terminating network domain selection

The present invention provides a system and apparatus for a mobile CS user to access an IMS network and a registration method for accessing. The network under the present invention comprises an IMS network for providing IMS services and a CS access network. The network contains a Register Proxy Function (RPF) entity, which comprises a first interface for communicating with the IMS network and a second interface for communicating with the CS access network. The RPF entity is adapted to map a CS registration event which is originated by the mobile CS user through the second interface to an IMS registration event, and initiate registration to the IMS network through the first interface on behalf of the mobile CS user. The technical solution under the present invention enables a mobile CS user to be registered to an IMS network practicably so that the CS user can enjoy rich IMS services.

System and apparatus for mobile CS users to access IMS network and registration method for accessing

A method, system, and device for converting session control signaling are provided. The method includes at least one of the following steps: a first adaptation unit converts a session control signaling message of a circuit switched (CS) session leg into a session control signaling message of an IP multimedia subsystem (IMS) session leg; or the first adaptation unit converts a session control signaling message of an IMS session leg into a session control signaling message of a CS session leg. In embodiments of the present invention, an adaptation unit intercepts a CS signaling message after an inter-mobile switching center (MSC) handover, and converts CS signaling messages to IMS signaling messages and vice versa, so that the IMS domain may continue to control a session after the inter-MSC handover.

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Shenzhen, China

Dongming Zhu