CN102638871B - Access network selection method for virtual terminal - Google Patents

Abstract

The invention discloses an access network selection method for a virtual terminal and belongs to the technical field of heterogeneous network convergence and collaborative control. According to the access network selection method for the virtual terminal, a converged ANDSF (Access Network Discovery and Selection Function) device is constructed in identical zones based on the conventional ANDSF devices; and when application requests are sent by subscribers, the ANDSF devices can acquire operator strategy information according to member equipment information and send the operator strategy information to the converged ANDSF device, the converged ANDSF device feeds back operator strategies to a container, and the container selects access networks for various member equipment of the subscribers. The access network selection method for the virtual terminal has the advantages that the ubiquitous access of the subscribers is realized, the cost for developing and purchasing new advanced terminals is saved, the available resources are fully utilized, and the user experience is enriched.

Description

A kind of access network selection method of virtual terminal

Technical field

The present invention relates to a kind of access network selection method of virtual terminal, belong to the technical field of heterogeneous network converged and Collaborative Control.

Background technology

Along with user is to the raising of business demand, and the raising of this demand can not be depended merely on, and a smart machine just can complete.At present, it has been objective reality that a user has multiple terminal, and look to user to abandon all terminals, it is less feasible for using a Full Featured integrated-type terminal instead; Otherwise make full use of existing terminal, working in coordination with by multiple terminals, when not changing user habit, makes user enjoy ubiquitous service.

Equipment available around user collaborative realizes oneself business, and these member devices can be same geographic areas, also can be zoness of different.Same equipment can be same operator, also can be different operators, but their common objective is the business need realizing user, makes these member devices just as a terminal is the work, the principle of Here it is virtual terminal.

The component of virtual termainal environment is exactly virtual terminal, corresponding different classes of user's definable three class virtual terminal: (i) towards the virtual terminal (DVT of individual, Decomposable Virtual Terminal), the virtual terminal (CVT of (ii) Cargo Oriented on Group, Corporation Virtual Terminal), (iii) application oriented virtual terminal (AVT, Application Virtual Terminal).

User is by multiple member terminal access networks of virtual terminal.In general, these terminals can access different network systems according to the needs of business, such as mobile radio communication, fixed communication network, the Internet, Broadcasting Cable Network, Internet of Things etc.The network of isomery has different network configurations, access technology, resource distribution and management method, even communication network also may belong to different operator's management.

According to different types and different application scenarioss, the terminal group forming virtual terminal can be rendered as different networking forms, as individual territory net (PAN), home network (HAN), individual net (PN), mesh network (Mesh), self-organization network (Ad Hoc), vehicle-mounted net (VAN), body area network (BAN) etc.

If there is multiple access technology type or Non-3GPP access network in a certain area, just there is the problem of access network discovery and selection.UE only carries out Network finding and selection course may not be always effective according to the access network level method that is set using of oneself.Such as, in EPS, MME is responsible for ambulant management, but it only has the information of 3GPP network, and Access Network information is limited to very much, can not meet the demand of user and the present situation of more and more heterogeneous network existence at present.In EPS, UE is access network signal strength signal intensity available around measurement clearance is measured, and measurement acquired results is informed decision package with report form, and this measuring process needs the participation of UE, and its energy consumed can not be ignored.

Summary of the invention

Technical problem to be solved by this invention is the deficiency for above-mentioned background technology, provides a kind of access network selection method of virtual terminal.

The present invention adopts following technical scheme for achieving the above object:

An access network selection method for virtual terminal, comprises the steps:

Step 1, in the same area of geographical position each operator deployment ANDSF device on set up one merge ANDSF device, the fusion ANDSF device of zones of different is interconnected to constitute ad eundem ANDSF structure;

Step 2, in virtual terminal, each member device obtains application demand information from container;

Step 3, in virtual terminal, each member device sends registration information to container, and described registration information is the XML format file comprising the application power information of each member device of virtual terminal, positional information and home network information;

Step 4, container and the ANDSF device belonged to set up secure connection, and then set up secure connection with fusion ANDSF device;

Step 5, container is to each member device initiation session in virtual terminal, and container sends the access network discovery information of available member device in virtual terminal to merging ANDSF device, merges ANDSF device feedback response information to container;

Step 6, container is virtual terminal each member device select target Access Network, Access Network information to be stored in device management information and to send to each member device in virtual terminal.

In the access network selection method of described virtual terminal, being specifically implemented as follows of step 4:

Step 4-1, the home network information of member device each in virtual terminal is sent to ANDSF device by container;

The operator policy information that step 4-2, ANDSF device belongs to the fusion ANDSF device acquisition request member device of region according to the home network information of member device each in virtual terminal;

After step 4-3, fusion ANDSF device searches the carrier policy of ANDSF server acquisition ANDSF device corresponding to member device region in virtual terminal, then operator policy information is returned to container;

Step 4-4, carrier policy Query Result and Access Network specifying information are returned to user by container again.

The access network selection method of described virtual terminal also comprises the steps:

Step 7, when container finds that virtual terminal alternate device is available, virtual terminal substitutes member device and sends log-on message to container;

Step 8, the application on virtual terminal equipment is switched on the alternate device of virtual terminal by user, then requires, for Access Network selected by virtual terminal alternate device, finally to trigger the Access Network selected by the access of virtual terminal alternate device according to application;

Step 9, the Internet resources of network release virtual terminal equipment.

The present invention adopts technique scheme, has following beneficial effect: the ubiquitous access achieving user, eliminates the cost developing and buy new premium terminals more, makes full use of existing resource, enriched the experience of user.

Accompanying drawing explanation

Fig. 1 is the framework map of virtual terminal access network discovery and selection in high-level multimedia system.

Fig. 2 is the flow chart of virtual terminal access network discovery and system of selection in high-level multimedia system.

Fig. 3 is the schematic diagram that in high-level multimedia system, container obtains the application message of collaborative terminal.

Embodiment

Be described in detail below in conjunction with the technical scheme of accompanying drawing to invention:

As shown in Figure 1, be high-level multimedia system AMS(Advanced Multimedia System) in, merging ANDSF(access network discovery and selection) device communicates with the ANDSF device of each core net, controls subscriber equipment and select intervention core net.

Data base organization's structure of ANDSF device is as shown in table 1, in 3GPP network coverage, have available WiMAX and WiFi network.This is a table after the screening of UE performance, and UE describes the available Access Network of screening according to positional information and professional ability again.The relevant information of available access networks can be obtained by this database, conveniently can access Access Network to facilitate UE.

Table 1

High-level multimedia system AMS(Advanced Multimedia System) in the access network selection method of virtual terminal, flow chart as shown in Figure 2 comprises the steps:

Step 1, in the same area of geographical position each operator deployment ANDSF device on set up one merge ANDSF device, the fusion ANDSF device of zones of different is interconnected to constitute ad eundem ANDSF structure.

Step 2, in virtual terminal, each member device obtains application demand information from container.Member device comprises: digital frame, television set, mobile phone, camera etc.

Step 3, in virtual terminal, each member device sends registration information to container, and described registration information is the XML format file comprising the application power information of each member device of virtual terminal, positional information and home network information.The process that television set is registered to container is as follows:

Information--the > of-application registration

<!-- The ID below is a UUID that identifies the particular -- instance of a registering entity. This value would be -- used by the user (indirectly) to indicated preferred -- devices --> <id>0cc35fe2-2fd3-11df-9637-12313a006823</id> <name>Display Screen</name> <applicationGroup> <application type="http://www.itu.int/xml-namespace/itu-t/h.325/display/"> <applicationName>Display</applicationName> <direction>receive</direction> <capabilities xmlns="http://www.itu.int/xml-namespace/itu-t/h.325/display/"> ... capabilities as specified in the associated standard ... </capabilities> </application> </applicationGroup> </device capacity > <supported technology > 3G;WiFi</ supported technology > </device capacity > </device location>

<GPS location>…</GPS location> </device location>

</ RegistrationRequest>

Container obtains the application message of collaborative terminal as shown in Figure 3, comprises the steps:

Step 101: container sends broadcast message and finds request, it comprises other information that should comprise in the application that application type and container looking for, and finds the specific application type that can be used for setting up session;

Step 102: the application meeting broadcast responds a registration information to applications registry, it comprises application and describes Application Descriptor, application ID(an ID) and the text character of other optional parameters; Step 103a: container can return accreditation verification to the application of succeeding in registration;

Step 103b: unsuccessful application receives the registration reject that container sends;

Step 104: application sends broadcast message, wherein comprises the imperfect or complete login request message of oneself;

Step 105a: receive the registration request that application sends, container inspection, the need of this application, if needed, sends authentication registration and obtains complete application message;

Step 105b: otherwise, then send registration reject.

Step 4, container and the ANDSF device belonged to set up secure connection, and then set up secure connection with fusion ANDSF device:

Step 4-1, the home network information of member device each in virtual terminal is sent to ANDSF device by container;

The operator policy information that step 4-2, ANDSF device belongs to the fusion ANDSF device acquisition request member device of region according to the home network information of member device each in virtual terminal;

Step 4-3, merges ANDSF device and searches the carrier policy that ANDSF server corresponding to member device region in virtual terminal obtains ANDSF device, then operator policy information is returned to container.Obtain the strategy of virtual terminal entirety and available Access Network specifying information, as the SSI etc. of WiFi, then carrier policy Query Result and Access Network specifying information are returned to user.

Step 5, container is to each member device initiation session in virtual terminal, and container sends the access network discovery information of available member device in virtual terminal to merging ANDSF device, merges ANDSF device feedback response information to container.

Step 6, container combination application demand and subscription data are virtual terminal each member device select target Access Network, and Access Network information are stored in equipment control (Device Management) information and send to each member device in virtual terminal.

Step 7, when container finds that virtual terminal alternate device is available, virtual terminal substitutes member device and sends log-on message to container.

Step 8, the application on virtual terminal equipment is switched on the alternate device of virtual terminal by user, then is that Access Network selected by virtual terminal alternate device based on the requirement of application, finally triggers virtual terminal alternate device access Access Network.

Step 9, after application handover success, trigger network discharges the Internet resources of virtual terminal equipment automatically.

In sum, the access network selection method of virtual terminal of the present invention: the ubiquitous access achieving user, eliminates the cost developing and buy new premium terminals more, makes full use of existing resource, enriched the experience of user.

Claims (2)

1. an access network selection method for virtual terminal, is characterized in that comprising the steps:

Step 1, in the same area of geographical position each operator deployment ANDSF device on set up one merge ANDSF device, the fusion ANDSF device of zones of different is interconnected to constitute ad eundem ANDSF structure;

Step 2, in virtual terminal, each member device obtains application demand information from container;

Step 3, in virtual terminal, each member device sends registration information to container, and described registration information is the XML format file comprising the application power information of each member device of virtual terminal, positional information and home network information;

Step 4, container and the ANDSF device belonged to set up secure connection, and then set up secure connection with fusion ANDSF device, are specifically implemented as follows:

Step 4-1, the home network information of member device each in virtual terminal is sent to ANDSF device by container;

The operator policy information that step 4-2, ANDSF device belongs to the fusion ANDSF device acquisition request member device of region according to the home network information of member device each in virtual terminal;

After step 4-3, fusion ANDSF device searches the carrier policy of ANDSF server acquisition ANDSF device corresponding to member device region in virtual terminal, then operator policy information is returned to container;

Step 4-4, carrier policy Query Result and Access Network specifying information are returned to user by container again;

Step 5, container is to each member device initiation session in virtual terminal, and container sends the access network discovery information of available member device in virtual terminal to merging ANDSF device, merges ANDSF device feedback response information to container;

Step 6, container is virtual terminal each member device select target Access Network, Access Network information to be stored in device management information and to send to each member device in virtual terminal.

2. the access network selection method of virtual terminal according to claim 1, characterized by further comprising following steps:

Step 7, when container finds that virtual terminal alternate device is available, virtual terminal substitutes member device and sends log-on message to container;

Step 8, the application on virtual terminal equipment is switched on the alternate device of virtual terminal by user, then requires, for Access Network selected by virtual terminal alternate device, finally to trigger the Access Network selected by the access of virtual terminal alternate device according to application;

Step 9, the Internet resources of network release virtual terminal equipment.