Huawei Technologies Co., Limited

Invt Spe LLC

Xiaoyan He

Jing Wen Wang

Shuang Liang

Dongming Zhu

Fenqin Zhu

Jincheng Li

Changlin Li

Jianfeng Zhong

Jianguo Zhao

Embodiments of the present invention relate to a route decision method, a content delivery apparatus, and a content delivery network interconnection system. A route decision method includes: receiving a notification message sent by a downstream CDN; determining a current service aggregate according to the notification message; and according to the current service aggregate and a total service quantity thresholdtotal quantity of services, performing route decision on a to-be-forwarded user request, where the total service quantity thresholdtotal quantity of services is an upper limit, set by the downstream CDN, of services capable of being provided by the downstream CDN for an upstream CDN. The embodiments of the present invention improve the accuracy of an upstream CDN in selecting a downstream CDN for a to-be-forwarded user request, and thereby improve the route decision efficiency.

Route decision method, content delivery apparatus, and content delivery network interconnection system

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 of session processing in the Internet Protocol (IP) Multimedia Subsystem (IMS) comprises: Interrogating-Call State Control Function (I-CSCF) accessing the Home Subscriber Server (HSS) to query the registration location of the called user, the I-CSCF sending the Session Initiation Protocol (SIP) request to the Serving-Call State Control Function (S-CSCF) based on the response of the HSS; when the response time of the S-CSCF to the SIP request sent from the I-CSCF has expired, the I-CSCF re-selecting the S-CSCF, and sending the SIP request to the S-CSCF. And an Interrogating-Call State Control Function is provided. According to the present invention, if the S-CSCF returned by the HSS to process the unregistered service of the IMS user does not responded because of the device failure or communication interruption or the like, the I-CSCF can re-select other S-CSCF to process the unregistered service of the IMS user, so as to improve the quality of service and to increase the satisfaction of user.

Method of session processing in an IMS and interrogating-call state control function

A method, system and apparatus for using an IMS communication service identifier is provided. The method includes getting, by an HSS, arrival of 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.

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Shenzhen, China

Xiaoyan He