System for implementing short message service and method for transmitting short message

Abstract

A system used for realizing short message service comprises traditional terminal, RAN, IMS kernel network, IP-Message-GM in IMS domain, short message center MC and short message adaptive function entity. The method utilizing said system to carry out up-sending of short message and down-sending of short message is also disclosed.

Description

technical field [0001] The invention relates to an IP multimedia technology, in particular to a system and method for realizing short message service in an IP multimedia subsystem. Background technique [0002] The bearer of the next-generation communication network has already begun to switch to IP. From the perspective of the development of the communication network, whether it is Code Division Multiple Access (CDMA, Code Division Multiple Access) or Global Mobile Communication System (GSM, Globe System of Mobile Communication) / Wideband Code Division Multiple Access (WCDMA), all have experienced from It is an evolution process from the traditional circuit switching network to the IP packet switching network with separated control and bearer, and then to the all-IP multimedia network. The ultimate goal in this evolution process is to provide services by a unified IP Multimedia Subsystem (IMS) network. However, in the process of evolving to IMS, there are still a large numb...

AI Technical Summary

Problems solved by technology

[0109] 1) When performing registration and calling services, the AGCF appears in the IMS network as a SIPUA, which is equivalent to a user; while performing short message services, the AGCF that implements the MSC function is equivalent to a network device, resulting in AGCF function confusion

[0110] 2) When realizing the short message service, the AGCF needs to obtain the user's subscription status from the user's home network, which will increase the interface between the AGCF and the HSS in the home network, and increase the complexity of the HSS

[0111] 3) The scheme for sending / receiving short messages by IMS domain terminals has been defined in the IMS domain, and its short message service control is realized by the IP-Message-GW functional entity. As far as end users are concerned, their short message service control is implemented by AGCF, resulting in the duplication of network function entities in the system where the IMS domain and the traditional circuit domain coexist

Moreover, different entities provide short message services, which may easily lead to inconsistent user experience, especially for dual-mode end users that support IMS domain and traditional circuit domain at the same time, it is more likely to lead to inconsistent service experience.

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