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CN109274706B - IP multimedia subsystem architecture supporting multiple services - Google Patents

IP multimedia subsystem architecture supporting multiple services Download PDF

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Publication number
CN109274706B
CN109274706B CN201710582732.XA CN201710582732A CN109274706B CN 109274706 B CN109274706 B CN 109274706B CN 201710582732 A CN201710582732 A CN 201710582732A CN 109274706 B CN109274706 B CN 109274706B
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sub
rcs
vowifi
service
module
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CN109274706A (en
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谢芬
何艳丽
贺人龙
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/51Discovery or management thereof, e.g. service location protocol [SLP] or web services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Communication Control (AREA)

Abstract

The invention provides an IP multimedia subsystem architecture supporting multiple services. The IP multimedia subsystem architecture comprises: the system comprises an RCS application module, an RCS service module, a VoWiFi service module, an adaptation module and a multi-instance management module, wherein the RCS service module is used for providing an RCS service function for the RCS application module; the VoWiFi service module is used for providing a VoWiFi service function for the RCS application module; the adaptation module is used for packaging interfaces of each sub protocol stack in the IMS protocol stack; and the multi-instance management module is used for managing RCS sub-instances and VoWiFi sub-instances corresponding to each sub-protocol stack in the IMS protocol stack. The invention can support the RCS service and the VoWiFi service to run on an IMS protocol stack at the terminal AP side, and has higher service processing efficiency.

Description

IP multimedia subsystem architecture supporting multiple services
Technical Field
The invention relates to the technical field of communication, in particular to an IP multimedia subsystem architecture supporting multiple services.
Background
RCS (Rich Communication Service) is a concept of Service convergence, and mainly refers to a concept of converging a plurality of services including audio, video, messaging, presentation, functions, content sharing, and other types of Communication in an IMS (IP Multimedia Subsystem) network, and including traditional functions such as voice and short message services, etc., to provide a unified Service experience among different services.
The RCS is the same as a VoWiFi (Voice over WiFi, Wi-Fi network audio and Video call) service and a VoLTE (Voice over LTE, LTE network audio and Video call) service, and is both built on the IMS network, the RCS can be fused with the VoWiFi service and the VoLTE service based on an IMS protocol, and besides the call services of Voice, Video and the like can directly call the basic capability of the VoWiFi or the VoLTE, the RCS can also provide service functions of IM (Instant Messenger, Instant messaging), file transmission, position sharing, new contact and the like for a user.
An IMS mobile terminal supporting RCS is gradually favored by the communication market, and at present, there are many design schemes for an IMS architecture in which VoLTE and RCS are merged, for example, an IMS architecture designed by disco corporation (D2) is a single-stack multi-service mode supporting RCS service and VoLTE service, where a single-stack mode is that an IMS protocol stack is located on a CP (co-processor) side of the terminal, and a load of the IMS stack on the CP side is relatively high. Both the RCS and the VoWiFi services are mainly implemented on an AP (Application Processor), and the operation efficiency is high, but at present, there is no design scheme for an IMS architecture with the convergence of the RCS and the VoWiFi.
Disclosure of Invention
The IP multimedia subsystem architecture supporting the multi-service can support the RCS service and the VoWiFi service to run on an IMS protocol stack at the terminal AP side, and the service processing efficiency is higher.
In a first aspect, the present invention provides an IP multimedia subsystem architecture supporting multiple services, where the IP multimedia subsystem architecture is applied to an application processor of a terminal, and supported services are implemented using an IMS protocol stack provided by the application processor, and the IP multimedia subsystem architecture includes: RCS application module, RCS service module, VoWiFi service module, adaptation module and multi-instance management module, wherein,
the RCS service module is used for providing RCS service functions for the RCS application module;
the VoWiFi service module is used for providing a VoWiFi service function for the RCS application module;
the adaptation module is used for encapsulating interfaces of each sub protocol stack in the IMS protocol stack, and the interfaces of each sub protocol stack are used by the RCS service module and the VoWiFi service module;
the multi-instance management module comprises an RCS instance management module and a VoWiFi instance management module, the RCS instance management module is used for managing RCS sub-instances corresponding to each sub-protocol stack in the IMS protocol stack, and the VoWiFi instance management module is used for managing VoWiFi sub-instances corresponding to each sub-protocol stack in the IMS protocol stack.
Optionally, each sub-protocol stack in the IMS protocol stack supports and is applied to the RCS service and the VoWiFi service, and each sub-protocol stack includes an RCS sub-instance, a VoWiFi sub-instance, and a common sub-module, wherein,
the RCS sub-instances of each sub-protocol stack are information of each sub-protocol applied to RCS services;
the VoWiFi sub-instances of the sub-protocol stacks are information of the sub-protocols applied to the VoWiFi service;
and the public sub-module of each sub-protocol stack is information of each sub-protocol shared by the RCS service and the VoWiFi service.
Optionally, the IP multimedia subsystem architecture supports RCS service and VoWiFi service to register a core network using a single registration mode, where the single registration mode is that the RCS service and the VoWiFi service share one Wi-Fi access bearer to register.
Optionally, the IP multimedia subsystem architecture supports RCS service and VoWiFi service to register a core network using a dual registration mode, where the dual registration mode is that the RCS service is registered through an access bearer of a mobile cellular network, and the VoWiFi service is registered through a Wi-Fi access bearer.
The IP multimedia subsystem architecture supporting the multi-service provided by the embodiment of the invention comprises the following steps: the system comprises an RCS application module, an RCS service module, a VoWiFi service module, an adaptation module and a multi-instance management module, wherein the RCS service module is used for providing an RCS service function for the RCS application module; the VoWiFi service module is used for providing a VoWiFi service function for the RCS application module; the adaptation module is used for packaging interfaces of each sub protocol stack in the IMS protocol stack; and the multi-instance management module is used for managing RCS sub-instances and VoWiFi sub-instances corresponding to each sub-protocol stack in the IMS protocol stack. Compared with the prior art, the method and the device can support the RCS service and the VoWiFi service to run on one IMS protocol stack on the terminal AP side, and the service processing efficiency is higher.
Drawings
Fig. 1 is a schematic diagram of an IP multimedia subsystem architecture supporting multiple services according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an IP multimedia subsystem architecture supporting multiple services according to another embodiment of the present invention;
fig. 3 is a schematic diagram of dual registration and single registration of RCS service and VoWiFi service under the IP multimedia subsystem architecture provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides an IP multimedia subsystem architecture supporting multiple services, where the IP multimedia subsystem architecture is applied to an application processor of a terminal, and supported services are implemented using an IMS protocol stack provided by the application processor, as shown in fig. 1, the IP multimedia subsystem architecture includes: an RCS application module 11, an RCS service module 12, a VoWiFi service module 13, an adaptation module 14, and a multi-instance management module 15, wherein,
the RCS service module 12 is configured to provide an RCS service function for the RCS application module 11;
the VoWiFi service module 13 is configured to provide a VoWiFi service function for the RCS application module 11;
the adaptation module 14 is configured to encapsulate interfaces of each sub-protocol stack in the IMS protocol stack, where the interfaces of each sub-protocol stack are used by the RCS service module 12 and the VoWiFi service module 13;
the multi-instance management module 15 includes an RCS instance management module 151 and a VoWiFi instance management module 152, where the RCS instance management module 151 is configured to manage RCS sub-instances corresponding to each sub-protocol stack in the IMS protocol stack, and the VoWiFi instance management module 152 is configured to manage VoWiFi sub-instances corresponding to each sub-protocol stack in the IMS protocol stack.
Optionally, each sub-protocol stack in the IMS protocol stack supports and is applied to the RCS service and the VoWiFi service, and each sub-protocol stack includes an RCS sub-instance, a VoWiFi sub-instance, and a common sub-module, wherein,
the RCS sub-instances of each sub-protocol stack are information of each sub-protocol applied to RCS services, and the VoWiFi sub-instances of each sub-protocol stack are information of each sub-protocol applied to VoWiFi services;
and the public sub-module of each sub-protocol stack is information of each sub-protocol shared by the RCS service and the VoWiFi service.
Optionally, the IP multimedia subsystem architecture supports RCS service and VoWiFi service to register a core network using a single registration mode, where the single registration mode is that the RCS service and the VoWiFi service share one Wi-Fi access bearer to register.
Optionally, the IP multimedia subsystem architecture supports RCS service and VoWiFi service to register a core network using a dual registration mode, where the dual registration mode is that the RCS service is registered through an access bearer of a mobile cellular network, and the VoWiFi service is registered through a Wi-Fi access bearer.
The IP multimedia subsystem architecture supporting the multi-service provided by the embodiment of the invention comprises the following steps: the system comprises an RCS application module, an RCS service module, a VoWiFi service module, an adaptation module and a multi-instance management module, wherein the RCS service module is used for providing an RCS service function for the RCS application module; the VoWiFi service module is used for providing a VoWiFi service function for the RCS application module; the adaptation module is used for packaging interfaces of each sub protocol stack in the IMS protocol stack; and the multi-instance management module is used for managing RCS sub-instances and VoWiFi sub-instances corresponding to each sub-protocol stack in the IMS protocol stack. Compared with the prior art, the method and the device can support the RCS service and the VoWiFi service to run on one IMS protocol stack on the terminal AP side, and the service processing efficiency is higher.
RCS and VoWiFi are network services based on IMS protocol stack, the requirements of these services on IMS protocol stack are basically identical, the IP multimedia subsystem architecture supporting multiple services provided by the invention adopts a design mode of single stack multiple services, namely, one IMS protocol stack is positioned at AP side, and simultaneously supports dual instances of RCS service and VoWiFi service, so that the code amount is greatly reduced, and the code utilization rate is high.
The schematic diagram of the IP multimedia subsystem architecture supporting multiple services provided by the present invention is shown in fig. 2, and the following describes each module in fig. 2 specifically:
RCS APP: RCS applications are provided, such as a messaging application, a dial application, a phonebook application, and the like.
RCS Service: the RCS service provides RCS basic capability for applications, for example, the RCS basic capability of IM instant information, File Transfer File transmission, Chat and the like is provided.
VoWiFi Service: the VoWiFi service provides basic capabilities of VoWiFi to applications, for example, services such as VoWiFi voice call, video call, SMS over IP, etc., wherein the VoWiFi voice call and the video call can be provided to the applications as new call functions of the RCS.
An Adapter: and the adaptation layer mainly has the function of encapsulating the interface of the lower IMS Stack for the use of the upper RCS Service and the VoWiFi Service.
Instance Manager: and the multi-instance management module is responsible for managing each instance. For example, to support two instances of RCS and VoWiFi at the same time, the present invention creates two instance management modules of INS _ RCS and INS _ VoWiFi, respectively. The two instance management modules include and manage RCS sub-instances and VoWiFi sub-instances corresponding to respective sub-protocols in an IMS protocol stack, for example, a corresponding RCS sub-instance in an SIP (Session initiation protocol) is an SIP _ INS _ RCS, and a corresponding VoWiFi sub-instance is an SIP _ INS _ VoWiFi.
IMS Stacks: the IMS Stack is a standard Protocol Stack, and provides a Protocol Stack transmission capability for an upper layer, and specifically includes important Protocol stacks such as an SIP, an SDP (Session Description Protocol), an XCAP (XML Configuration Access Protocol), an HTTP (HyperText Transfer Protocol), a DNS (domain name system), and the like.
The realization of the single-stack multi-service technology is based on the commonalities of all IMS protocols, the commonalities are extracted, then non-commonalities are extracted, such as differences of RCS and VoWiFi, and a structure body INS is established according to the differences so as to serve as a multi-instance standard.
The following takes the SIP protocol stack as an example to explain the design scheme of multiple instances:
SIP (session initiation protocol) is a multimedia communication protocol, which can support and be applied to multimedia services such as voice, video, data, etc. in IMS network, and can also be applied to feature services such as Presence service, IM instant messaging, etc. More specifically: SIP INVITE/BYE, etc., can be applied to VoWiFi calls; SIP MESSAGE, and is applied to the IM Service of RCS and the SMS over IP (Short Message Service over IP, IP network Short Message Service) Service of VoWiFi; SIP REGISTER, etc., are used in the registration of both RCS and VoWiFi.
The above SIP protocol stack relates to the same points of the different instances (RCS instance and VoWiFi instance): a SIP message processing flow, such as FSM (State Machine); encapsulation of SIP message bodies, etc., which do not differ depending on whether they are applied to RCS or VoWiFi, or to IM or SMS over IP. The invention writes these common parts into common sub-modules independent of the instance, such as FSM, Utility sub-modules, etc., for different instance operations.
The above SIP protocol stack relates to different points of different instances (RCS instance and VoWiFi instance): links, configurations, etc. used by the different instances; the contents of the SIP message body, etc. The invention respectively instantiates different parts of different instances (such as SIP _ INS _ RCS and SIP _ INS _ VoWiFi), the instantiated parts are placed in the SIP _ INS to serve as different sub-instances, and the specific values of the SIP _ INS owned by the different sub-instances are different. In addition, if necessary, a sub-module of the SIP _ INS can be added to process special operations of different instances, and the like.
And other protocol modules in the IMS protocol stack are designed in a multi-instance mode by taking SIP as an example.
According to the IMS single-stack multi-Instance design framework provided by the invention, an Instance Manager module is introduced to manage multiple instances, each protocol in an IMS protocol stack designs a sub-function module in the protocol according to a multi-instantiation standard, relevant contents are instantiated, and an Instance data structure is formed by stripping.
The multi-service supporting IP multimedia subsystem architecture provided by the present invention supports dual instances of RCS service and VoWiFi service at the same time, and is suitable for IMS dual registration or IMS single registration of RCS service and VoWiFi service, as shown in fig. 3, a schematic diagram of dual registration and single registration for RCS service and VoWiFi service. The important differences between IMS dual registration and single registration are: the dual registration is two access bearers, the RCS service is registered through a 4G/3G/2G PS Bearer (mobile cellular network access Bearer), and the VoWiFi service is registered through a VoWiFi IMS APN Bearer (Wi-Fi access Bearer); and the single registration only has one access Bearer, and the RCS service and the VoWiFi service share the VoWiFi IMS APN Bearer (Wi-Fi access Bearer) for registration.
The invention supports single registration or double registration of multiple services, no matter single registration or double registration, several services are registered, several examples are established, IMS protocol stack is divided according to the established examples, only when multiple services are registered, parameters related to paths of the multiple examples are consistent, and access load on the same path is used for transmitting data.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (4)

1. An IP multimedia subsystem architecture for supporting multiple services, the IP multimedia subsystem architecture being applied to an application processor of a terminal, the supported services being implemented using an IMS protocol stack provided by the application processor, the IP multimedia subsystem architecture comprising: RCS application module, RCS service module, VoWiFi service module, adaptation module and multi-instance management module, wherein,
the RCS service module is used for providing RCS service functions for the RCS application module;
the VoWiFi service module is used for providing a VoWiFi service function for the RCS application module;
the adaptation module is configured to encapsulate interfaces of each sub-protocol stack in the IMS protocol stack, where the interfaces of each sub-protocol stack are used by the RCS service module and the VoWiFi service module, each sub-protocol stack includes an RCS sub-instance, a VoWiFi sub-instance, and a common sub-module, and the common sub-module of each sub-protocol stack is information of each sub-protocol shared by the RCS service and the VoWiFi service;
the multi-instance management module comprises an RCS instance management module and a VoWiFi instance management module, the RCS instance management module is used for managing RCS sub-instances corresponding to each sub-protocol stack in the IMS protocol stack, and the VoWiFi instance management module is used for managing VoWiFi sub-instances corresponding to each sub-protocol stack in the IMS protocol stack.
2. The IP multimedia subsystem architecture of claim 1, wherein each sub-protocol stack in the IMS protocol stack supports and applies to the RCS service and VoWiFi service, the each sub-protocol stack comprising an RCS sub-instance, a VoWiFi sub-instance, and a common sub-module, wherein,
the RCS sub-instances of each sub-protocol stack are information of each sub-protocol applied to RCS services;
the VoWiFi sub-instances of the sub-protocol stacks are information of the sub-protocols applied to the VoWiFi service;
and the public sub-module of each sub-protocol stack is information of each sub-protocol shared by the RCS service and the VoWiFi service.
3. The IP multimedia subsystem architecture of claim 1, wherein the IP multimedia subsystem architecture supports RCS services and VoWiFi services to register with a core network using a single registration mode, and the single registration mode is performed in a manner that the RCS services and the VoWiFi services share a Wi-Fi access bearer.
4. The IP multimedia subsystem architecture of claim 1, wherein the IP multimedia subsystem architecture supports RCS services and VoWiFi services to register with a core network using a dual registration mode, wherein the dual registration mode is that the RCS services are registered via an access bearer of a mobile cellular network, and wherein the VoWiFi services are registered via a Wi-Fi access bearer.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101483566A (en) * 2008-01-11 2009-07-15 Tcl集团股份有限公司 Middleware oriented to 3C fusion
CN101931902A (en) * 2009-06-26 2010-12-29 中兴通讯股份有限公司 Service implementation method and system of IP multimedia subsystem network
CN106453201A (en) * 2015-08-06 2017-02-22 联发科技(新加坡)私人有限公司 IP multimedia subsystem service integration method and communication apparatus
CN106921625A (en) * 2015-12-25 2017-07-04 展讯通信(上海)有限公司 Multimedia service processing system, data is activation and method of reseptance and terminal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101431807B (en) * 2007-11-05 2012-02-22 上海华为技术有限公司 Mobile station proxy, base station subsystem and network adapting method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101483566A (en) * 2008-01-11 2009-07-15 Tcl集团股份有限公司 Middleware oriented to 3C fusion
CN101931902A (en) * 2009-06-26 2010-12-29 中兴通讯股份有限公司 Service implementation method and system of IP multimedia subsystem network
CN106453201A (en) * 2015-08-06 2017-02-22 联发科技(新加坡)私人有限公司 IP multimedia subsystem service integration method and communication apparatus
CN106921625A (en) * 2015-12-25 2017-07-04 展讯通信(上海)有限公司 Multimedia service processing system, data is activation and method of reseptance and terminal

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