CN100433933C

CN100433933C - Method for media arrangement

Info

Publication number: CN100433933C
Application number: CNB200610090387XA
Authority: CN
Inventors: 张晓鹏; 丁岩
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-07-05
Filing date: 2006-07-05
Publication date: 2008-11-12
Anticipated expiration: 2026-07-05
Also published as: CN1878412A

Abstract

The present invention relates to a method for media consultation, which comprises the following steps: a calling UE sends multimedia call establishment message carrying bell-vibration step media consultation marks; a called UE or a network node receives a call request, then starts the local communication operation and returns a bell-vibration message; when the bell-vibration message passes through a network node in a route, exchange end nodes are communicated in a bidirectional mode; the calling UE starts the communication operation; the calling UE carries out media consultation with the called UE or the network node. The present invention carries out the media consultation at the beginning step of bell vibration; when a called user answers, the voice video communication can be processed. Therefore, the present invention improves experience to media services for users, and is favorable to the introduction of value-add services for operators, such as videos and color bells.

Description

A kind of method of media negotiation

Technical field

The present invention relates to the multimedia technology field in the communication technology, relate in particular to a kind of method of media negotiation.

Background technology

Media negotiation be meant on control channel, finish terminal capability negotiation, the principal and subordinate determines, opens a series of processes such as relative logic channel and the transmission of channel multiplexing table, detail is referring to consensus standard H.245.In universal mobile telecommunications system (UMTS) network, some multimedia services require to carry out earlier media negotiation, just can carry out the transmission of multimedia audio-video afterwards, the circuit domain mediaphone of definition a kind of multimedia communication form that comes to this in the third generation partner program (3GPP), it follows the 3G-324M agreement.

Figure 1 shows that 3G-324M call signalling flow figure in the prior art, calling subscriber equipment (UE) is set up 3G-324M and is called out, and sends call setup message to called UE, the called UE ring, and to calling UE transmission ALERTING message; After the called UE off-hook was replied, called UE sent connection message to calling UE, call out in the route, and after network node is received connection message, its exchange end points of two-way connection, after calling UE was received connection message, calling UE sent a CONNect Acknowledgement message to called UE.So far, the call setup success, carrying is set up, and calling UE and called UE begin to carry out H.245 media negotiation in the good carrying of foundation.After consulting successfully, calling UE begins audio/video information with called UE and communicates by letter.

From above-mentioned call flow as can be seen, after replying, the called UE off-hook just begins in the good carrying of foundation, to carry out media negotiation, because H.245 media negotiation needs between calling UE and the called UE repeatedly Signalling exchange just can finish, the time of cost is longer, prolonged the time of beginning audio/video information communication between calling UE and the called UE, can influence the experience of user multimedia service; Simultaneously, also to value-added service for example the introducing of video color ring service brought certain influence, video color ring service requires just to begin communicating by letter of media negotiation and audio/video information at the called UE ringing phase, and the situation of above-mentioned prior art is unfavorable for the introducing of this business.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of method that just can finish media negotiation before called UE or network node are replied.

For this reason, the invention provides a kind of method of media negotiation, this method is:

Step a: calling subscriber equipment UE sends multimedia call and sets up message, carries ringing phase media negotiation sign in this message;

Step b: after called UE or the network node with media processing capacity are received the call setup message that contains ringing phase media negotiation sign, send one and contain the ALERTING message that the ringing phase media negotiation confirms, and start the local terminal traffic operation;

Step c: the described ALERTING message that contains the confirmation of ringing phase media negotiation makes the two-way connection of its exchange end points through the network node in the route time;

Steps d: calling UE receive described contain the ALERTING message that the ringing phase media negotiation confirms after, start the local terminal traffic operation, calling UE and called UE or the network node with media processing capacity begin to carry out media negotiation.

Wherein, step b can further be:

After called UE or the network node with media processing capacity are received the call setup message that contains ringing phase media negotiation sign, judge whether local terminal supports ringing phase media negotiation function, if support, then send and contain the ALERTING message that the ringing phase media negotiation confirms, and startup local terminal traffic operation, if do not support, then do not contain the ringing phase media negotiation in the ALERTING message of Fa Songing and confirm.

Wherein, between step a and step b, also comprise:

The foundation of radio bearer, Iu interface bearing and core net carrying in the network

Wherein, the present invention also comprises:

Step e: calling UE and called UE or the network node with 3G-324M media processing capacity begin audio/video information and communicate by letter.

Wherein, described multimedia call comprises that 3G-324M calls out.

Because the present invention just begins to carry out media negotiation at the multimedia call ringing phase, promptly before replying, called UE or network node with media processing capacity finished media negotiation, after so the network node of working as called UE or having a media processing capacity is replied, just can carry out the communication of audio/video information immediately, improve the experience of user for multimedia service.

Described calling UE and called UE or the network node with media processing capacity begin audio/video information communicates by letter and must carry out behind media negotiation, so the communication of beginning audio/video information can also can be carried out at speech phase at ringing phase.If carry out at ringing phase, just for the such value-added service of for example video frequency color ring provides possibility, at ringing phase, calling UE can be finished communicating by letter of media negotiation and audio/video information with the video frequency color ring platform.

Description of drawings

Fig. 1 is 3G-324M call signalling flow figure in the prior art;

Fig. 2 is 3G-324M call signalling flow figure of the present invention;

Fig. 3 is the signaling process figure of the embodiment of the invention 1;

Fig. 4 is the signaling process figure of the embodiment of the invention 2;

Fig. 5 is the signaling process figure of the embodiment of the invention 3;

Fig. 6 is the network model figure of the embodiment of the invention 2 and embodiment 3;

Fig. 7 is the networking schematic diagram of the embodiment of the invention 4.

Embodiment

Core concept of the present invention is: in multimedia call, just finish media negotiation at ringing phase, media negotiation is finished before the called UE off-hook is replied.And then, based on the method, can be generalized in the call flow of the network node that has media processing capacity in calling UE and the network, to help the introducing of value-added services such as video frequency color ring.

Below, be example with the 3G-324M calling, and in conjunction with the accompanying drawings the present invention described the present invention.

As shown in Figure 2, calling UE is set up 3G-324M and is called out, send call setup (Setup) message to called UE or network node with 3G-324M media processing capacity, and adding ringing phase media negotiation (ATInBandMN) identifies in Setup message, when called UE or when having the network node ring of 3G-324M media processing capacity, this request of media negotiation when if called UE or the network node with 3G-324M media processing capacity are supported ring, then when sending ring (Alerting) message, indicate this confirmation, and start the local terminal traffic operation, prepare to carry out media negotiation.

Arrive in the calling UE process by called MS C, caller MSC in the system in Alerting message, this message trigger called MS C, caller MSC, make the two-way connection of its exchange end points, after Alerting message arrives calling UE, calling UE and called UE or the network node with 3G-324M media processing capacity begin to carry out media negotiation, as among Fig. 2 H.245 shown in the Media Negotiation.

Media negotiation is finished, and behind the called party answer, called transmission connects (Connect) message to calling UE, and calling UE responds this message, and sends CONNect Acknowledgement (Connect-Ack) message to called, so far, the call setup success, carrying is set up.Just can carry out calling UE and communicate by letter with called audio/video information this moment.

Among the present invention, if calling and called process mobile interaction center gateway (GMSC), then Alerting message trigger GMSC makes the two-way connection of its exchange end points, does not influence enforcement of the present invention.

Embodiment 1

As shown in Figure 3, this figure carries out the call signalling flow of media negotiation for the ringing phase under the R99 network.This network comprises calling UE, caller RNC, caller MSC, called MS C, called RNC, reaches called UE.

At first, calling UE is initiated 3G-324M and is called out caller MSC, add the ATInBandMN sign in Setup message, caller MSC responds this message and callback is given calling UE progress (Call Proceeding) message, and MSC is handling the calling that calling UE is initiated with expression;

Then, caller MSC sets up radio bearer: caller MSC sends wireless access load-bearing allocation request (RAB Assignment Req) message to caller RNC, the RAB assignment is carried out in request, caller RNC finishes assignment operation back transmission RAB assignment and finishes (RAB Assignment Comp) message to caller MSC, expression RAB assignment is finished, and RAB is set up;

When calling terminal carried out the RAB assignment, initial address (IAM) message that the Setup message conversion that has the ATInBandMN sign that caller MSC will receive becomes to have the ATInBandMN sign sent to called MS C.Called MS C paging (Paging) called UE is also carried out authentication and encryption operations such as (Security), and afterwards, the Setup message that the IAM message conversion that called MS C will have an ATInBandMN sign becomes to have the ATInBandMN sign sends to called UE;

After called UE is received the Setup message that has the ATInBandMN sign, return call confirmation (CallConfirmed) message and give called MS C, the request of expression receipt of call;

At this moment, called MS C sets up radio bearer: called MS C sends RAB AssignmentReq message to called RNC, the RAB assignment is carried out in request, called RNC carries out the RAB assignment after receiving request, send RABAssignment Comp message to called MS C, expression RAB assignment is finished, and RAB is set up;

When called end carries out the RAB assignment, called UE is judged the ATInBandMN sign that receives, if local terminal is supported this function of ATInBandMN, then in Alerting message with on the confirmation of ATInBandMN, send Alerting (ATInBandMN ACK) message to called MS C, and start the local terminal traffic operation, prepare to carry out media negotiation;

Called MS C carries out two-way connection (Both-way through connect) action, with the two-way connection of mutual end points of local terminal Incoming side and out side after receiving Alerting (ATInBandMN ACK) message;

Afterwards, called MS C is with ATInBandMN to confirm to send ACM (ATInBandMN ACK) message in complete (ACM) message in address and gives caller MSC, after caller MCS receives ACM (ATInBandMN ACK) message, carry out Both-way through connect action, with the two-way connection of mutual end points of local terminal Incoming side and out side, and send Alerting (ATInBandMN ACK) message to calling UE;

Calling UE starts the local terminal traffic operation after receiving Alerting (ATInBandMN ACK) message that has the ATInBandMN sign, beginning and called UE are carried out Media Negotiation media negotiation;

The called UE off-hook is replied, called UE sends and connects Connect message to called MS C, called MS C is by ANM notice caller MSC, caller MSC sends to calling UE with this connection message again, notice calling UE called UE is replied, so far, begin to carry out the communication of audio/video information between calling UE and the called UE.

Embodiment 2

Figure 4 shows that ringing phase carried out the signaling process figure of media negotiation when the carrying of soft switch framework ventrocephalad was set up, Fig. 6 is its corresponding network model figure.

Carry out the ringing phase media negotiation under soft-exchange construction, the network system that needs comprises: caller MSC, called MS C, caller RNC, called RNC, Calling Side media gateway MGW 1, callee side MGW2, and as Fig. 6.

When carrying out the 3G-324M calling, caller MSC generates a related CTX1, and this association comprises T1 and two destination nodes of T2, and wherein, T1 is used to insert the foundation of side carrying, and T2 is used for the foundation of network side load;

Called MS C generates a related CTX2, and this association comprises T3 and two destination nodes of T4, and wherein, T3 is used for the foundation of network side load, and T4 user inserts the foundation of side carrying.

At first, calling UE is initiated 3G-324M and is called out caller MSC, adds the ATInBandMN sign in Setup message, and caller MSC responds this message and returns Call Proceeding message and give calling UE, and MSC is handling the calling that calling UE is initiated with expression;

The IAM message that the Setup message conversion that has the ATInBandMN sign that caller MSC will receive becomes to have the ATInBandMN sign sends to called MS C; Called MS C and called UE are carried out Paging+Secuity, i.e. paging, authentication and encryption; Afterwards, the called MS C IAM message conversion that will have the ATInBandMN sign Setup message that becomes to have the ATInBandMN sign sends to called UE;

After called UE is received the Setup message that has the ATInBandMN sign, return Call Confirmed message and give called MS C, the request of expression receipt of call;

At this moment, between called MS C and the MGW2, add the destination node of network side by the ADD order:

Called MS C sends Context ($) ADD.request ($) message, and request adds a destination node to MGW2, the carrying that is used for network side is set up, MGW2 sends Context (C2) ADD reply (T3) message and gives called MS C, expression has generated destination node T3 and related CTX2, and destination node T3 joined among the related CTX2, at this moment, called MS C tells the beared information of T3 to caller MSC to caller MSC transmission beared information (Bearer Information) message;

Caller MSC by with MGW1 between Context ($) ADD.request ($)/Context (C1) ADD reply (T2) signaling exchange destination node T2 is joined among the related CTX1, and inform the beared information of MGW1 about T3.MGW1 initiates carrying to MGW2 and sets up (Bearer Establishment), sets up the carrying between T2 and the T3;

Afterwards, pass through between caller MSC and the MGW1

Context ($) ADD.request ($)/Context (C1) ADD reply (T1) signaling exchange joins destination node T1 among the related CTX1, and then, caller MSC sends RAB Assignment Req message request to caller RNC and carries out the RAB assignment, sets up Iu interface bearing and Iu interface initialization by Bearer Establishment andIu UP initialization message between caller RNC and the MGW1; Caller RNC returns RAB Assignment Comp message and gives caller MS, and expression RAB assignment is finished, and RAB is set up;

Finish the initialization of user's face by user's face initialization (UP Init) and user's face initialization confirmation (UPInit ACK) message between MGW1 and the MGW2; By Context ($) Notify request ($)/Context (C2) Notify reply (T3) signaling exchange notice called MS C, the user's face initialization between MGW1 and the MGW2 is finished between MGW2 and the called MS C;

Caller MSC sends Continuity message to called MS C, expression front network carrying on;

By Context ($) ADD.request ($)/Context (C2) ADD reply (T4) signaling exchange destination node T4 is joined among the related CTX2 between called MS C and the called MGW, called MS C sends RAB Assignment Req message request to called RNC and carries out the RAB assignment, sets up Iu interface bearing and Iu interface initialization by Bearer Establishment and Iu UP initialization message between called RNC and the MGW2; Called RNC returns RAB Assignment Comp message and gives called MS C, and expression RAB assignment is finished, and RAB is set up;

At this moment, called UE is judged the ATInBandMN sign that receives, if local terminal is supported this function of ATInBandMN, then in Alerting message with on the confirmation of ATInBandMN send Alerting (ATInBandMN) message to called MS C, and start the local terminal traffic operation, prepare to carry out media negotiation;

Called MS C judges to local terminal that after receiving Alerting (ATInBandMN) message if not two-way connection when ADD orders of T3, T4 among the related CTX2, order T3, T4 two-way connection with Modify this moment;

After the two-way connection of T3, T4, called MS C is with ATInBandMN to confirm to send ACM (ATInBandMN) message in ACM message and gives caller MSC, after caller MCS receives ACM (ATInBandMN) message, local terminal is judged, if not two-way connection when ADD orders of T1, T2 among the related CTX1, order T1, T2 two-way connection with Modify this moment;

After the two-way connection of T1, T2, caller MSC is with the ATInBandMN sign to send to calling UE in Alerting message;

So far, calling UE and called UE begin to carry out Media Negotiation media negotiation;

The called UE off-hook is replied, called UE sends and connects Connect message to called MS C, called MS C is by ANM notice caller MSC, caller MSC sends to calling UE with connection message again, notice calling UE called UE is replied, and begins to carry out the communication of audio/video information between calling UE and the called UE.

Embodiment 3

When carrying was set up, ringing phase carried out the signaling process figure of media negotiation after being illustrated in figure 5 as under the soft framework, and Fig. 6 also is adapted to back its corresponding network model figure when carrying is set up under this framework.

Afterwards when carrying is set up, the main flow process that ringing phase carries out media negotiation is identical with embodiment 2 described forward bearer, different is, and to set up T1, T2 different with the time order and function of setting up T3, T4, as shown in Figure 5, identical among the effect of its signaling and the embodiment 2, at this, no longer be repeated in this description.

Embodiment 4

The present invention is not only applicable to calling UE called UE is carried out media negotiation at ringing phase, be applicable to that also calling UE carries out media negotiation and multi-media information communication to the network node that has the 3G-324M media processing capacity in the network at ringing phase, present embodiment is an example with the network node color ring platform that has the 3G-324M media processing capacity in the network, and further application of the present invention is illustrated.

Figure 7 shows that the networking schematic diagram of present embodiment, calling UE is initiated video frequency color ring and is called out calling exchange's (comprising caller MSC and caller MGW1), and adding ATInBandMN identifies in Setup message, calling exchange is passed through in this calling, called exchange (comprising called MS C and called MGW2) is called out called UE, when the called UE ring, called MS C transmission has the call setup message of ATInBandMN sign to color ring platform, color ring platform returns and has the ACK ALERTING message that ATInBandMN confirms, and with the exchange end points of Calling Side and the two-way connection of exchange end points of color ring platform side, calling UE and color ring platform begin to carry out media negotiation (herein, color ring platform need have be supported in the function that ringing phase carries out media negotiation), after consulting successfully, color ring platform is given the calling UE telecasting video frequency color ring;

After the called UE off-hook was replied, called MS C and color ring platform disconnected, and with the two-way connection of exchange end points of the exchange end points and the callee side of Calling Side, called UE and calling UE enter speech phase.

As seen, by technical scheme provided by the invention, the network node that has the 3G-324M media processing capacity in UE and the network for example color ring platform has had at ringing phase and has carried out media negotiation and the ability of communicating by letter, such value-added service of video frequency color ring provides technical assurance for operator for example introduces for this, makes video frequency color ring become possibility in ringing phase transmission tone video information.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1, a kind of method of media negotiation is characterized in that,

2, method according to claim 1 is characterized in that, step b is:

After called UE or the network node with media processing capacity are received the call setup message that contains ringing phase media negotiation sign, judge whether local terminal supports ringing phase media negotiation function, if support, then send and contain the ALERTING message that the ringing phase media negotiation confirms, and startup local terminal traffic operation, if do not support, then the ALERTING message of Fa Songing does not contain the confirmation of ringing phase media negotiation.

3, method according to claim 1 is characterized in that, also comprises between step a and step b:

The foundation of radio bearer, Iu interface bearing and core net carrying in the network.

4, according to any described method of claim 1 to 3, it is characterized in that, also comprise:

Step e: calling UE and called UE or the network node with media processing capacity begin audio/video information and communicate by letter.

5, method according to claim 1 is characterized in that, described multimedia call comprises that 3G-324M calls out.