CN104113536A - Selection method and device for called access domain - Google Patents
Selection method and device for called access domain Download PDFInfo
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- CN104113536A CN104113536A CN201410321328.3A CN201410321328A CN104113536A CN 104113536 A CN104113536 A CN 104113536A CN 201410321328 A CN201410321328 A CN 201410321328A CN 104113536 A CN104113536 A CN 104113536A
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Abstract
The invention discloses a selection method and device for a called access domain and relates to the technical field of communication. When a called client accesses an IMS network from a wifi network to carry out voice communication, the IMS network is enabled to determine a called access domain of a called user so that a call failure of a voice communication service can be prevented. The method includes the following steps: when an invite message sent by a calling client is received, an access type identification of the called client is triggered and obtained and whether the identification is a wifi identification is detected, wherein the wifi identification represents that the called client accesses the IMS network from the wifi network; and when the access type identification of the called client is determined to be the wifi identification, the invite message is routed in an IMS domain so that the invite message is routed in the IMS domain to the client. The selection method and device for the called access domain are mainly applied to a selection procedure of a called access domain.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of system of selection and device of called input field.
Background technology
At present, voice calling service is one of important service of operator, in order to dispose VoLTE (Voice over Long Term Evolution, voice Long Term Evolution), operator selects IMS (IP Multimedia Subsystem, IP multimedia system) network as core net.Wherein, IMS is a conversation control system that access is irrelevant, support the session control of various packet switch access scenes, as the access scene of supporting comprises: LTE (Voice over Long Term Evolution, Long Term Evolution), wifi (wireless fidelity, Wireless Fidelity), HSPA (High-Speed Packet Access, high-speed packet access) etc., IMS network can be by these access Scene realization session control.Along with wifi becomes the important technology that covering is divided in chamber gradually, VoWiFi (Voice over Wireless Fidelity, the voice based on wifi) also becomes one of solution of operator's voice calling service.
Description in conjunction with above-mentioned access scene, the solution of existing voice calling service comprises: VoLTE, CS (Circuit Switching, circuit switching) voice and VoWiFi, and in application process, for same user terminal, while adopting these voice calling service solutions to carry out voice call, in order to facilitate the use of user to held user terminal, same user terminal is used to jack per line.But inventor finds, this user terminal resides in a plurality of access scenes simultaneously and when called, just there will be the selection problem of called input field.For example, user terminal resides in CS territory and IMS territory simultaneously, and this user terminal has signing voice calling service in CS territory and IMS territory, when user terminal arrives IMS network by LTE network insertion, and this user terminal is as called, when this called party terminal is at IMS network registry and support PS (Packet Switching, packet switching) during the voice of territory, the call signaling that main dialing user sends is in IMS territory route, otherwise by IMS territory, forward this call signaling to CS territory route, finally by the input field of selecting, be routed to called party terminal, thereby realize the talk business of main dialing user and called party terminal.And the access scene of working as user terminal is wifi, namely from wifi network insertion to IMS network, and user terminal is when called, face equally the selection problem of above-mentioned called input field, and VoWiFi is as a kind of solution of emerging voice calling service, do not have corresponding called access domain selection scheme, and while adopting above-mentioned flow process to carry out called access domain selection, can not find called party terminal, namely can not complete the selection of called input field, cause voice calling service call failure.
Summary of the invention
Embodiments of the invention provide a kind of system of selection and device of called input field, a kind of system of selection of new called input field is provided, when called party terminal is present in a plurality of access scenes, and while carrying out voice call from wifi access IMS network, make IMS network can determine called input field, thereby can avoid the call failure of voice calling service.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A system of selection for called input field, comprising:
The request invite message sending according to main dialing user, the access style sign of called party terminal is obtained in triggering, the access style sign of described called party terminal represents the access network type of the called party terminal of current storage, and the access style sign of described called party terminal comes from Access Network information PANI field in called subscriber's registration message;
Whether the access style sign that detects described called party terminal is Wireless Fidelity wifi sign, and described wifi sign represents that described called party terminal is from wifi network insertion IP multimedia system IMS network;
When the access style of described called party terminal being detected and be designated described wifi sign, by described invite in IMS territory route, so that described invite message is routed to described called party terminal in described IMS territory.
A choice device for called input field, comprising:
Acquiring unit, the request invite message sending according to main dialing user, the access style sign of called party terminal is obtained in triggering, the access style sign of described called party terminal represents the access network type of the called party terminal of current storage, and the access style sign of described called party terminal comes from Access Network information PANI field in called subscriber's registration message;
Detecting unit, whether the access style sign of the described called party terminal getting for detection of described acquiring unit is Wireless Fidelity wifi sign, described wifi sign represents that described called party terminal is from wifi network insertion IP multimedia system IMS network;
Territory menu unit, when the access style that described called party terminal detected when described detecting unit is designated described wifi sign, by described invite message in IMS territory route, so that described invite message is routed to described called party terminal in described IMS territory.
The system of selection of the called input field that the embodiment of the present invention provides and device, when receiving main dialing user, send invite message time, whether the access style sign of the called party terminal that detection trigger gets is wifi sign, this wifi sign represents that called party terminal is from wifi network insertion IMS network, when determining that the access style of this called party terminal is designated wifi sign, determine that invite message is in IMS territory route, so that this invite message is routed to called party terminal in IMS territory.The technical scheme that the embodiment of the present invention provides has solved in prior art, called party terminal is present in a plurality of access scenes, and while carrying out voice call from wifi access IMS network, can not determine out the problem of called input field, thereby avoided voice calling service call failure.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The method flow diagram of a kind of called access domain selection that Fig. 1 provides for one embodiment of the invention;
The method flow diagram of a kind of called access domain selection that Fig. 2 provides for another embodiment of the present invention;
The method flow diagram of a kind of called access domain selection that Fig. 3 provides for another embodiment of the present invention;
The application scenarios schematic diagram of a kind of called access domain selection method that Fig. 3-1 provides for another embodiment of the present invention;
The application scenarios schematic diagram of the called access domain selection method of another kind that Fig. 3-2 provide for another embodiment of the present invention;
The composition schematic diagram of a kind of called access domain selection device that Fig. 4 provides for another embodiment of the present invention;
The composition schematic diagram of the called access domain selection device of another kind that Fig. 5 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
One embodiment of the invention provides a kind of system of selection of called input field, the method is carried out by the called access domain selection function network element on IMS, this called access domain selection function network element is the set of one or more equipment on IMS, for realizing the selection of called input field, this called access domain selection function network element can be T-ADS (Terminating Access Domain Selection, called access domain selection) network element, this T-ADS network element, can with SCC AS (Service Centralization and Continuity Application Server, in services set and application server for continuity), MMtel AS (Multimedia Telephony Application Server, mediaphone application server), Anthor AS (Anchor Application Server, grappling application server) any one or a few network element closes and establishes.
As shown in Figure 1, the method comprises:
101, the invite message sending according to main dialing user, triggers the access style sign of obtaining called party terminal.
Description in conjunction with above-mentioned 101, namely, when called access domain selection function network element receives calling subscriber's side S-CSCF (Serving Call Session Control Function, service call conversation control function) send invite message time, this called access domain selection function network element obtains the access style sign of called party terminal.
Wherein, the access style of called party terminal sign represents the access network type of the called party terminal of the current storage of called access domain selection function network element.
What deserves to be explained is, the access style sign of this called party terminal is recorded in the PANI (P-Access-Network-Info in user's registration message, Access Network information) field, this PANI field is carried in user's registration message of called party terminal, and the access style of the called party terminal relating in 101 sign is with user's registration message renewal of this called party terminal.
102, whether the access style sign of detection called party terminal is wifi sign.
Wherein, wifi sign represents that called party terminal is from wifi network insertion IMS network.
What deserves to be explained is, in this enforcement, do not limit wifi and be identified at the form of expression in PANI field, such as, this wifi sign can be any one or a few in wifi, WiFi, IEEE802.11, IEEE802.11n, IEEE802.11a, IEEE802.11b, IEEE802.11g, IEEE802.11i, IEEE802.11h, IEEE802.11e/f/h, WLAN, that is to say when the wifi sign of above-mentioned any one or a few form being detected, carry out following 103.
103, when the access style of called party terminal being detected, be designated wifi when sign, by invite message in IMS territory route, so that invite message is routed to called party terminal in IMS territory.
What deserves to be explained is, because this called party terminal arrives IMS networking by wifi network insertion, invite message is in IMS route, the description of integrating step 103, definite invite message wherein keep this invite message to continue in this IMS route in IMS territory route, and be routed to called party terminal by this IMS territory.
The system of selection of the called input field that the embodiment of the present invention provides, when receiving the invite message that main dialing user sends, the access style sign of called party terminal is obtained in triggering, whether and to detect this sign be wifi sign, this wifi sign represents that called party terminal is from wifi network insertion IMS network, when determining that the access style of this called party terminal is designated wifi sign, by invite message in IMS territory route, so that this invite message is routed to called party terminal in IMS territory.The technical scheme that the embodiment of the present invention provides, solved in prior art, called party terminal is present in a plurality of access scenes, and while carrying out voice call from wifi access IMS network, can not determine out the problem of called input field, thereby avoided voice calling service call failure.
Another embodiment of the present invention provides a kind of system of selection of called input field, for the execution flow process in embodiment as shown in Figure 1, has provided more detailed introduction.
First, carrying out before above-mentioned 101, the method that the embodiment of the present invention provides also comprises:
The first step: called access domain selection function network element receives the invite message that calling subscriber's side S-CSCF sends.
What deserves to be explained is, the number that comprises the called party terminal that main dialing user request converses in this invite message, thereby called access domain selection function network element can be according to the number in this invite message, from canned data, search the state information corresponding with this called party terminal, thereby can carry out following second step.
Second step: called access domain selection function network element judges this called party terminal VoIMS (Voice over IP Multimedia Subsystem, the voice based on IP multimedia system) business of whether having contracted.
What deserves to be explained is, all schemes by IMS network solution voice calling service can be VoIMS business, such as, this VoIMS business, can comprise any one or a few voice calling service in VoWiFi, VoLTE, VoHSPA (Voice over High-Speed Packet Access, the voice based on high-speed packet access).
When definite this called party terminal has been contracted VoIMS business, carry out following the 3rd step, when definite this called party terminal is not contracted VoIMS business, carry out following the 4th step.
The 3rd step: called access domain selection function network element judges that whether this called party terminal is at IMS network registry.
When definite this called party terminal is during at IMS network registry, carry out above-mentionedly 101, when definite this called party terminal is registered at IMS networking, carry out following the 4th step.
The 4th step: called access domain selection function network element is to HSS (Home Subscriber Server, home subscriber server) inquiry called subscriber's MSRN (Mobile Station Roaming Number, mobile station roaming number), invite message is forwarded to CS territory route from IMS territory.
What deserves to be explained is, invite message forwards CS territory to from IMS territory, need to pass through MGCF (Media Gateway Control Function, MGCF) network element and realize the intercommunication in two territories, invite message need to forward CS territory route to by MGCF network element.
Secondly, in conjunction with the description in above-mentioned embodiment as shown in Figure 1, in carrying out above-mentioned 101 processes, be that called access domain selection function network element is while obtaining PANI field, in a kind of preferred implementation of the present embodiment, this PANI field is contained in user's registration message of called party terminal, and this user's registration message is registration Register message.That is to say, when called party terminal passes through wifi network insertion IMS network, when called party terminal carries out IMS registration, need in Register message, carry this field.
What deserves to be explained is, in above-mentioned user's registration message, can also comprise access focus sign wlan-node-id field, this field is for representing the position of called party terminal from wifi network insertion to IMS network.
In addition what deserves to be explained is, for above-mentioned user's registration message, can be that called party terminal directly generates, in this user's registration message, comprise PANI field, this PANI field is carried the access style sign of called party terminal, also can be called subscriber's side SBC (Session Border Controller, Session Border Controller) according to the positional information in wlan-node-id field, directly user's registration message is modified, and then in this user's registration message PANI field, add wifi sign.
Again, in conjunction with the description in a upper embodiment 102, in the present embodiment, the access style sign of having described called party terminal is not the situation of wifi sign.
Executing after above-mentioned 102, also comprising:
When called access domain selection function network element determines that the access style sign of called party terminal is not wifi sign after testing, to HSS, send inquiry request information.
Wherein, inquiry request information is used for inquiring about called party terminal and whether supports the speech business of PS territory.
Further, when called access domain selection function network element receives called party terminal that HSS sends and supports the feedback message of PS territory speech business, in IMS territory route, and then make this invite message be routed to called party terminal in IMS territory invite message.
When called access domain selection function network element receives called party terminal that HSS sends and do not support the feedback message of PS territory speech business, invite message is forwarded to CS territory route from IMS territory, and then make this invite message be routed to called party terminal from CS territory.
What deserves to be explained is, in the technical scheme providing in the embodiment of the present invention, called input field comprises IMS territory and CS territory.
What deserves to be explained is, in carrying out the specific implementation process of called access domain selection, due to user terminal be movably, its position changes, so also there is such situation, although determined called input field, but still can not find called party terminal, for this situation, just need to carry out quadratic field choosing.The execution flow process of carrying out this quadratic field choosing will be described in next embodiment.
Another embodiment of the present invention provides a kind of system of selection of called input field, in conjunction with the description of above-described embodiment, when invite message is during in IMS territory route, determine that this invite message is when the route called party terminal of this IMS territory, the method can also realize quadratic field choosing, comprising:
A, called access domain selection function network element start territory and select timer, and invite message is sent to called subscriber's side SBC.
B, when called access domain selection function network element receive that called subscriber's side SBC sends cannot find the information of called party terminal time, invite message is forwarded to CS territory route from IMS territory, and then this invite message is routed to called party terminal from CS territory.
Or when timer expiry is selected in territory, called access domain selection function network element sends and cancels call request message to called subscriber's side SBC, and invite message is forwarded to CS territory route from IMS territory, and then this invite message is routed to called party terminal from CS territory.
Another embodiment of the present invention provides a kind of system of selection of called input field, and in the present embodiment, the method to the selection of called input field, has described more complete territory and selected flow process.As shown in Figure 2, the method comprises:
201, called access domain selection function network element is received the invite message that calling subscriber's side S-CSCF sends.
202, called access domain selection function network unit is according to this invite information query called party terminal VoIMS business of whether having contracted.
Concrete judge that this called party terminal VoIMS business of whether having contracted comprises:
On the one hand, when called access domain selection function network element has been stored the CAMEL-Subscription-Information of called party terminal, determine that this called party terminal opened VoIMS business.
What deserves to be explained is, now the CAMEL-Subscription-Information of called party terminal refers to, called party terminal can carry out by IMS network the CAMEL-Subscription-Information of voice calling service, and the CAMEL-Subscription-Information of called party terminal is stored in HSS, when called party terminal is when IMS network completes registration, called access domain selection function network element obtains and stores the CAMEL-Subscription-Information of this called party terminal from HSS.
While not storing the CAMEL-Subscription-Information of called party terminal in called access domain selection function network element, this called access domain selection function network element obtains the CAMEL-Subscription-Information that this called party terminal is corresponding from HSS.
On the other hand, when called party terminal is not contracted VoIMS business, called access domain selection function network element is inquired about called MSRN (Mobile Station Roaming Number to HSS, mobile station roaming number), and invite message is forwarded to CS territory route from IMS territory, and then this invite message is routed to called party terminal from CS territory.
Further, when definite this called party terminal has been contracted VoIMS business, carry out followingly 203, when definite this called party terminal is during signing VoIMS business, carry out following 206.
203, called access domain selection function network element judges whether this called party terminal is registered in IMS territory.
Concrete, when called party terminal is not registered in IMS territory, called access domain selection function network element is inquired about the MSRN of called party terminal to HSS, and invite message is forwarded to CS territory route from IMS territory, namely carries out following 206; When called party terminal is registered in IMS territory, carry out following 204.
The access style sign of the called party terminal that 204, called access domain selection function network unit records according to the PANI field in called subscriber's registration message of storage, judges whether called party terminal access network of living in is wifi network.
Concrete, when the access style sign of called party terminal being detected and comprise wifi sign, determine that the residing access network of this called party terminal is wifi network, otherwise, determine that the residing access network of this called party terminal is not wifi network.
Further, called access domain selection function network element records the access style sign etc. of result, login state and the called party terminal of the signing VoIMS business of above-mentioned called party terminal.And the above-mentioned information of its record can be safeguarded and upgrade to this called access domain selection function network element, and the information of this record can be by the number index of called party terminal.
Further, when called access domain selection function network element receives the invite message of main dialing user transmission, this invite message can be carried the number of the called party terminal of this main dialing user request dialogue, and called access domain selection function network element determines that by the number of the called party terminal that carries in this invite message the access style of this called party terminal identifies.
When whether the concrete access style sign that detects this called party terminal at called access domain selection function network element is wifi sign, this wifi sign represents that called party terminal is from wifi network insertion IMS network, when if the access style of called party terminal sign is wifi sign, represent that called party terminal is from wifi network insertion, carry out following 207, otherwise, carry out following 205.
205, whether called access domain selection function network element supports the speech business of PS territory to HSS inquiry called party terminal.
Wherein, the speech business of PS territory also comprises LTE speech business.If HSS returns to called subscriber PS territory support voice business, carry out followingly 207, otherwise carry out following 206.
206, called access domain selection function network element, to HSS inquiry called subscriber's MSRN, forwards invite message to CS territory route, and then makes this invite message be routed to called party terminal from CS territory from IMS territory.
Concrete is carrying out above-mentioned 206 o'clock, called access domain selection function network element is according to the MSRN of this called party terminal finding, revise Request URI (the Request Uniform Resource Identifier in invite message, ask universal resource identifier), and then invite message forwards CS territory route to from IMS territory by MGCF network element.
207, called access domain selection function network element is by invite message in IMS territory route, and then this invite message can be routed to called party terminal in IMS territory.
Another embodiment of the present invention provides a kind of system of selection of called input field, in this embodiment, describe the idiographic flow that called access domain selection function network element carries out quadratic field choosing in detail, in above-mentioned method flow as shown in Figure 2, the selection course of called input field has been described, carrying out after above-mentioned 207, determine that invite message is after the route of IMS territory, if by this IMS territory route called party terminal failure, can also carry out the process of quadratic field choosing, as shown in Figure 3, this quadratic field selects flow process to comprise:
301, called access domain selection function network element determines that the called input field at called party terminal place is IMS territory.
What deserves to be explained is, this step 301 is corresponding with above-mentioned steps 207.
302, called access domain selection function network element is transmitted to called subscriber's side S-CSCF by invite message, starts territory and selects timer.
In a kind of preferred implementation of the present embodiment, territory selects the time of timer to set according to IMS network condition.Such as, when called access domain selection function network element is received the reply signaling of returning from called party terminal, cancel territory and select timer.This reply signaling has found called party terminal for representing, can be also the response to invite message, and preferred, this reply signaling is SIP200OK message.
303, called subscriber's side S-CSCF mails to called subscriber's side SBC by invite message.
Further, invite message sends to after called subscriber's side SBC, and by this called subscriber's side, SBC re-sends to called party terminal.Although only there is in logic a jumping, in actual process of transmitting, this invite message sends to called party terminal by called subscriber's side SBC again through PS domain network element.
Concrete sends in the process of called party terminal by called subscriber's side SBC in invite message, first, called subscriber's side SBC first sends to PS domain network element by this invite message, and then PS domain network element is carried out initiation paging, find called party terminal, to called party terminal, send the operations such as data bit.If PS domain network element paging overlong time, the user side that can not find the called for a long time, will trigger the territory of called access domain selection function network element and select timer expiry.
Further, when territory, select timer not overtime, carry out following 304; When territory, select timer expiry, carry out following 306.
304, called subscriber's side SBC receives the information that cannot find called party terminal, and feeds back to called access domain selection function network element.
Optionally, this information that cannot find described called party terminal is 4xx message.
305, to reselect called input field be CS territory to called access domain selection function network element.
Carrying out above-mentioned 305 o'clock, be specially, to the MSRN of HSS inquiry called party terminal, according to this MSRN, revise the Request URI in invite message, this invite message is forwarded to CS territory route from IMS territory by MGCF network element road.
306, called access domain selection function network element sends and cancels call request message to called subscriber's side SBC.
What deserves to be explained is, carrying out above-mentioned 306 o'clock, the cancellation call request message relating to is cancelled invite message exactly, cancels the also invite message route between called subscriber's side S-CSCF, called subscriber's side SBC or called subscriber's side SBC and called party terminal.
Optionally, this cancellation call request message is SIP CANCEL.
What deserves to be explained is, for more clearly explanation, the description of called party terminal in a plurality of access scenes, this description that is positioned at a plurality of access scenes comprises but does not limit the following two kinds of forms that exist:
The first form: as shown in Fig. 3-1, called party terminal UE is positioned at the situation of CS covering domain 301, LTE covering domain 302, wifi covering domain 303 simultaneously, and LTE covering domain 302 comprises wifi covering domain 303, and CS covering domain 301 comprises LTE covering domain 302.
The second form: as shown in Fig. 3-2, called party terminal UE is positioned at wifi covering domain 306, in this accompanying drawing, also comprise CS covering domain 304, LTE covering domain 305, and CS covering domain 304 comprises wifi covering domain 306 and LTE covering domain 305, wifi covering domain 306 does not overlap with LTE covering domain 305.
Description in conjunction with two kinds of above-mentioned forms, the situation that exists called subscriber's end position to move, such as, initial called party terminal initial condition is in wifi covering domain, the situation that moves to afterwards CS covering domain and cover without wifi, or called party terminal initial condition is in wifi covering domain, move to afterwards LTE covering domain and situation about covering without wifi.The description of above-mentioned Fig. 3-1 of concrete combination, Fig. 3-2, the position situation of movement of above-mentioned called party terminal can be, called party terminal moves to 302 from 303, or move to 301 from 303, or move to 305 from 306, or move to 304 from 306, under above-mentioned position situation of movement, need to carry out quadratic field choosing, carry out above-mentioned method flow as shown in Figure 3, be not repeated.
Another embodiment of the present invention provides a kind of choice device of called input field, and as shown in Figure 4, this device comprises: acquiring unit 41, detecting unit 42, territory menu unit 43.
What deserves to be explained is, the device as shown in Figure 4 providing in the present embodiment is for realizing above-mentioned method flow as shown in Figure 1.
Acquiring unit 41, for the invite message sending according to main dialing user, triggers the access style sign of obtaining called party terminal.
Wherein, the access style of called party terminal sign represents the access network type of the called party terminal of current storage, and the access style of this called party terminal sign comes from the PANI field in called subscriber's registration message.
Detecting unit 42, whether the access style sign of the called party terminal getting for detection of acquiring unit 41 is wifi sign.
Wherein, wifi sign represents that called party terminal is from wifi network insertion IMS network.
Territory menu unit 43, is designated wifi when sign for the access style of called party terminal detected when detecting unit 42, by invite message in IMS territory route, so that this invite message is routed to called party terminal in IMS territory.
In a kind of optional implementation of the invention process, as shown in Figure 5, this device also comprises: transmitting element 44, startup timing unit 45.
Transmitting element 44, while not being wifi sign for the access style sign of called party terminal detected when detecting unit 42, sends inquiry request information to HSS.
Wherein, inquiry request information is used for inquiring about called party terminal and whether supports the speech business of PS territory.
Territory menu unit 43, also when receiving called party terminal that HSS sends and support the feedback message of PS speech business, by invite message in IMS territory route, so that invite message is routed to called party terminal in IMS territory.
In addition, territory menu unit 43, also, for when receiving called party terminal that HSS sends and do not support the feedback message of PS territory speech business, forwards invite message to CS territory route, so that invite message is routed to called party terminal from CS territory from IMS territory.
Start timing unit 45, when determining invite message at IMS territory route called party terminal by territory menu unit 43, start territory and select timer, and invite message is sent to called subscriber's side SBC by called subscriber's side S-CSCF.
Territory menu unit 43, also for when receive that called subscriber's side SBC sends cannot find called subscriber's message time, invite message is forwarded to CS territory route from IMS territory, so that invite message is routed to called party terminal from CS territory.
What deserves to be explained is, this territory menu unit 43 is for receiving cannot find called subscriber's message time, invite message is forwarded to CS territory route from IMS territory, this function of this territory menu unit 43 is selected in the not overtime situation of timer and is enabled in the territory that starts timing unit 45 startups.
Optionally, territory menu unit 43, also, for selecting timer expiry when starting the territory of timing unit 45 startups, sends and cancels message related to calls to called subscriber's side SBC, and invite message is forwarded to CS territory route from IMS territory, so that invite message is routed to called party terminal from CS territory.
What deserves to be explained is, in the present embodiment, called input field comprises IMS territory and CS territory.
In addition what deserves to be explained is, the device as shown in Figure 5 that the embodiment of the present invention provides can be used in realizes above-mentioned method flow as shown in Figure 1-Figure 3.
The choice device of the called input field that the embodiment of the present invention provides, when receiving the invite message that main dialing user sends, the access style sign of called party terminal is obtained in triggering, whether and by detecting unit, to detect this sign be that wifi identifies, this wifi sign represents that called party terminal is from wifi network insertion IMS network, when determining that the access style of this called party terminal is designated wifi sign, by territory menu unit by invite message in IMS territory route, so that this invite message is routed to called party terminal in IMS territory.The technical scheme that the embodiment of the present invention provides, solved in prior art, called party terminal is present in a plurality of access scenes, and while carrying out voice call from wifi access IMS network, can not determine out the problem of called input field, thereby avoided voice calling service call failure.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (10)
1. a system of selection for called input field, is characterized in that, described method comprises:
The request invite message sending according to main dialing user, the access style sign of called party terminal is obtained in triggering, the access style sign of described called party terminal represents the access network type of the called party terminal of current storage, and the access style sign of described called party terminal comes from the Access Network information PANI field in called subscriber's registration message;
Whether the access style sign that detects described called party terminal is Wireless Fidelity wifi sign, and described wifi sign represents that described called party terminal is from wifi network insertion IP multimedia system IMS network;
When the access style of described called party terminal being detected and be designated described wifi sign, by described invite message in IMS territory route, so that described invite message is routed to described called party terminal in described IMS territory.
2. the system of selection of called input field according to claim 1, is characterized in that,
When determining that after testing the access style sign of described called party terminal is not described wifi sign, to home subscriber server HSS, send inquiry request information, described inquiry request information is used for inquiring about described called party terminal and whether supports packet switching PS territory speech business;
When receiving described called party terminal that described HSS sends and support the feedback message of described PS territory speech business, by described invite message in described IMS territory route, so that described invite message is routed to described called party terminal in described IMS territory.
3. the system of selection of called input field according to claim 2, is characterized in that,
When receiving described called party terminal that described HSS sends and not supporting the feedback message of described PS territory speech business, from described IMS territory, forward described invite message to circuit switching (CS) territory route, so that described invite message is routed to described called party terminal in described CS territory.
4. the system of selection of called input field according to claim 2, is characterized in that, described method also comprises:
When described invite message is determined described in the route of described IMS territory during called party terminal, start territory and select timer, and described invite message is sent to called subscriber's side Session Border Controller SBC by called subscriber's side service call conversation control function S-CSCF;
When receive that described called subscriber's side SBC sends cannot find described called subscriber's message time, from described IMS territory, forward described invite message to circuit switching (CS) territory route, so that described invite message is routed to described called party terminal from described CS territory;
Or, when timer expiry is selected in described territory, to described called subscriber's side SBC, send and cancel message related to calls, described invite message is forwarded to described CS territory route from described IMS territory, so that described invite message is routed to described called party terminal in described CS territory.
5. according to the system of selection of the called input field described in claim 1 to 4 any one, it is characterized in that, described called input field comprises IMS territory and CS territory.
6. a choice device for called input field, is characterized in that, described device comprises:
Acquiring unit, for the request invite message sending according to main dialing user, the access style sign of called party terminal is obtained in triggering, the access style sign of described called party terminal represents the access network type of the called party terminal of current storage, and the access style sign of described called party terminal comes from the Access Network information PANI field in called subscriber's registration message;
Detecting unit, whether the access style sign of the described called party terminal getting for detection of described acquiring unit is Wireless Fidelity wifi sign, described wifi sign represents that described called party terminal is from wifi network insertion IP multimedia system IMS network;
Territory menu unit, when being designated described wifi and identifying for the access style of described called party terminal detected when described detecting unit, by described invite message in IMS territory route, so that described invite message is routed to described called party terminal in described IMS territory.
7. the choice device of called input field according to claim 6, is characterized in that, described device also comprises:
Transmitting element, while not being described wifi sign for the access style sign of described called party terminal detected when described detecting unit, to home subscriber server HSS, send inquiry request information, described inquiry request information is used for inquiring about described called party terminal and whether supports packet switching PS territory speech business;
Described territory menu unit, when receiving described called party terminal that described HSS sends and support the feedback message of described PS territory speech business, by described invite message in described IMS territory route, so that described invite message is routed to described called party terminal in described IMS territory.
8. the choice device of called input field according to claim 7, is characterized in that,
Described territory menu unit, also for when receiving described called party terminal that described HSS sends and not supporting the feedback message of described PS territory speech business, from described IMS territory, forward described invite message to circuit switching (CS) territory route, so that described invite message is routed to described called party terminal from described CS territory.
9. the choice device of called input field according to claim 7, is characterized in that, described device also comprises:
Start timing unit, for when by the first definite described invite message of described territory menu described in the route of described IMS territory during called party terminal, start territory and select timer, and described invite message is sent to called subscriber's side Session Border Controller SBC by described called subscriber's side service call conversation control function S-CSCF;
Described territory menu unit, also for when receive that described called subscriber's side SBC sends cannot find described called subscriber's message time, from described IMS territory, forward described invite message to circuit switching (CS) territory route, so that described invite message is routed to described called party terminal from described CS territory;
Or, described territory menu unit, also for the described territory starting when described startup timing unit, select timer expiry, to described called subscriber's side SBC, send and cancel message related to calls, and described invite message is forwarded to described CS territory route from described IMS territory, so that described invite message is routed to described called party terminal from described CS territory.
10. the choice device of the called input field described in any one according to claim 6 to 9, is characterized in that, described called input field comprises IMS territory and CS territory.
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