CN101171774A - Method and apparatus for notifying changed service information according to terminal state in a wireless communication system - Google Patents

Method and apparatus for notifying changed service information according to terminal state in a wireless communication system Download PDF

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Publication number
CN101171774A
CN101171774A CNA2006800155082A CN200680015508A CN101171774A CN 101171774 A CN101171774 A CN 101171774A CN A2006800155082 A CNA2006800155082 A CN A2006800155082A CN 200680015508 A CN200680015508 A CN 200680015508A CN 101171774 A CN101171774 A CN 101171774A
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China
Prior art keywords
asl
information
services
state
service
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CNA2006800155082A
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CN101171774B (en
Inventor
林娴娜
崔成豪
宋晤硕
金在珍
裵恩希
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Nokia Technologies Oy
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Samsung Electronics Co Ltd
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Priority claimed from PCT/KR2006/001719 external-priority patent/WO2006121272A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices

Abstract

A method and apparatus for, upon generation of an event triggering a change in the state of a UE participating in a call, sending service information changed due to the state change to the other participating entity and notifying each user of the service information are provided. When a state change event occurs to a UE, the UE checks its available services and sends a message including service information indicating the available services to the other entity connected to the UE. Therefore, the other entity has knowledge of the actual available services of the UE in a changed environment.

Description

In wireless communication system according to the method and apparatus of the notifying changed information on services of SOT state of termination
Technical field
Present invention relates in general to composite type circuit switched (CS) calls out and internet protocol multimedia subsystem (IMS) session (session) (being called CSI hereinafter).Especially, the present invention relates to be used for sending the method and apparatus of the information on services that changes owing to the UE state to another peer-entities that is connected with subscriber equipment (UE).
Background technology
Circuit switched is used for general voice service.CS is the scheme of setting up between a user and another user based on the communication path of CS.By contrast, IMS uses the packet-based variable communication path on the IP, has therefore increased efficiency of transmission and has guaranteed stability.IMS supports that (multiparty) calls out and call out one to one in many ways.
Global system for mobile communications (GSM) and enhancing data rate GSM evolution (EDGE) wireless access network (GERAN) support CS to call out basically.Support to call out based on the terrestrial radio Access Network (UTRAN) of the Universal Mobile Telecommunications System (UMTS) of GSM based on multimedia service and the CS of IMS.For example, when bimodulus (dual-mode) terminal that can visit GERAN and UTRAN is connected with the CS calling in GERAN zone, plane, and in transfer place when UTRAN zone is mobile, UE can use CS to call out simultaneously and comprise that the enhancement mode PS that message sends and file transmits serves.
When as during the state change of the UE that in above situation, is connected with another peer-entities, the service that participating user can be used may also change.But, less than designation method from present available service to participating user (being entity) that do not notify.
As relevant conventional art, whether there is when connecting beginning exchange to indicate to serve the method for information available.Particularly, during the call setup in the CSI service, the information of the wireless status of exchange indication participating user between the user.The CSI service is used for the CS calling of audio call and is used to comprise the IMS session of the enhancement mode PS service of message and file transmission.CSI terminal and CS/PS dual-mode terminal can be supported the CSI service.As mentioned above, owing on CS network and PS network (comprising the IMS territory), all realize the CSI service, so it is available at dual transfer mode (DTM) GERAN or UTRAN zone.The wireless performance in the zone that UE is arranged in (radio capability) is equivalent to the service availability (availability) in CSI service zone.
Fig. 1 is the figure of the signal flow of the diagram wireless performance exchange process that is used for CSI service.UE 100 (UE-A) and UE110 (UE-B) support CSI service or CS/PS bimodulus.UE-A is via the CS territory 102 (visit of CS territory-A) IMS core network 104 (IMS core network A), and UE-B is via CS territory 108 (visit IMS core network 106 (the IMS core network B) of CS territory-B).
With reference to Fig. 1, in step 112, UE-A sends information about the current wireless environment in the zone that UE-A was positioned to UE-B being used for SETUP message that CS calls out.In step 114, the CS territory-A that is connected with UE-A sends initial address message (IAM) message that comprises the current wireless environmental information to the CS territory that is connected with UE-B-B.In step 116, CS territory-B sends the SETUP message that comprises the current wireless environmental information to UE-B.The UE-B storage is about the current wireless environmental information of UE-A.In step 118, UE-B sends the CONNECT message of the current wireless environmental information that comprises the zone that UE-B is positioned to UE-A.In step 120, CS territory-B sends the current wireless environmental information with CON message to CS territory-A, and in step 122, CS territory-A sends the current wireless environmental information with CONNECT message to UE-A.UE-A also stores the current wireless environmental information about UE-B.
By this way, two UE have obtained the knowledge of the wireless performance of they current regions, in other words are exactly available CSI service.Yet, when the state of a UE after call setup changes, for example in transfer, taking place, other participating users in the connection do not know that available service changes.As a result, even but when the PS service time spent, the user does not know yet and PS is not provided service, therefore can not satisfy user's requirement.
Therefore, exist and to be used for improving one's methods and the demand of equipment according to the change in the state notifying information on services of wireless terminal.
Summary of the invention
An exemplary goal of the present invention is to solve above at least problem and/or shortcoming, and following at least advantage is provided.Therefore, exemplary embodiment of the present invention is provided for to the change that participates in the available service types that the change of UE notice owing to the state of a UE cause.
When exemplary embodiment of the present invention also is provided at the incident generation that triggers the state change that participates in UE in the calling, is used to check the available service of UE and participates in the method and apparatus of the information on services of UE transmission indication available service to other.
According to an illustrative aspects of the present invention, in the state according to the UE (UE-A) in the wireless communication system comes method that notifying service information changes, set up and being connected and serving of the 2nd UE (UE-B) by this connections reception.When the incident of the change of the state that triggers UE-A at viability produces, change the available service tabulation (UE-ASL-A) of upgrading UE-A according to state, and send the information on services of the UE-ASL-A of indication through upgrading to UE-B.
According to another illustrative aspects of the present invention, receive in the method that information on services changes at state according to the UE (UE-A) among the 2nd UE (UE-B) in the wireless communication system, set up and being connected and serving of UE-A by this connections reception.When the incident of the change of the state that triggers UE-A at viability takes place, receive the information on services that changes the available service tabulation (UE-ASL-A) of indication UE according to state from UE-A.When keep connecting, the available service tabulation (UE-ASL-B) by relatively UE-ASL-A and UE-B also notifies the user to upgrade public (common) available service tabulation (ASL).
According to an illustrative aspects more of the present invention, come in the method for notifying service information change at state according to the UE in the network equipment in the wireless communication system, connect between a UE (UE-A) and the 2nd UE (UE-B) by the network equipment, and provide service by this connection.When the incident of the change of the state that triggers UE-A at viability takes place, receive the information on services that changes the available service tabulation (UE-ASL-A) of indication UE-A according to state from UE-A, and it is sent to UE-B by another network equipment that is connected with UE-B.
According to another illustrative aspects of the present invention, come to be established to the connection of the 2nd UE (UE-B) in the method for notifying service information change at state, and connect the service of reception by this according to the UE (UE-A) in the wireless communication system.When the incident of change that triggers the state of UE during connecting takes place, upgrade the available service tabulation (UE-ASL-A) of the UE-A that changes according to state, and with its available service with UE-B tabulate (UE-ASL-B) compare.If according to comparative result, exist in the public available service tabulation (ASL) to change, then when maintenance connects, upgrade ASL, send it to UE-B, and notify the user.
According to another illustrative aspects of the present invention, come in the method for notifying service information change at state according to the UE in the network equipment in the wireless communication system, connect between a UE (UE-A) and the 2nd UE (UE-B) by the network equipment, and provide service by this connection.When the incident of change that triggers the state of UE-A during connecting takes place, receive the information on services that changes the public available service tabulation (ASL) of indication UE-A and UE-B according to state from UE-A, and be sent to UE-B by another network equipment that is connected with UE-B.
Description of drawings
When connection with figures, the above and other target of exemplary embodiment of the present invention, feature and advantage will become more obvious from the following detailed description, wherein:
Fig. 1 is the figure of the signal flow of the diagram wireless performance exchange process that is used for CSI service;
Fig. 2 be diagram according to first exemplary embodiment of the present invention, when a certain incident takes place the UE-A that is connected with UE-B, be used for flow chart to the operation of the UE-A of the UE of each user notification UE-A available service tabulation (UE-ASL);
Fig. 3 is the flow chart of diagram according to the operation of the UE-B of first exemplary embodiment of the present invention;
Fig. 4 is the figure of diagram according to the IMS signaling of first exemplary embodiment of the present invention;
Fig. 5 A and the diagram of 5B difference are according to the OPTIONS+ of exemplary embodiment of the present invention and the structure of 200 OK+ message;
Fig. 6 diagram is according to the structure of the NOTIFY of exemplary embodiment of the present invention;
Fig. 7 is the figure of diagram according to the CS signaling of first exemplary embodiment of the present invention;
Fig. 8 be diagram according to second exemplary embodiment of the present invention, when a certain incident takes place the UE-A that is connected with UE-B, be used for flow chart to the operation of the UE-A of the UE-ASL of each user notification UE-A;
Fig. 9 is the flow chart of diagram according to the operation of the UE-B of second exemplary embodiment of the present invention;
Figure 10 is the figure of diagram according to the IMS signaling of second exemplary embodiment of the present invention;
Figure 11 is the figure of diagram according to the example of the CS signaling of second exemplary embodiment of the present invention;
Figure 12 is the figure of diagram according to another example of the CS signaling of second exemplary embodiment of the present invention;
Figure 13 is the block diagram according to the UE equipment of exemplary embodiment of the present invention; And
Figure 14 is the block diagram according to the network equipment of exemplary embodiment of the present invention.
In the accompanying drawings, from first to last, identical Reference numeral will be understood that to represent components identical, feature and structure.
Embodiment
With reference to accompanying drawing, will be described below exemplary embodiment of the present invention.In the following description, because known function or structure will be obscured the present invention with unnecessary details, so be not described in detail.
One exemplary embodiment of the present invention comprise such method, wherein, when the incident of triggering state change betides UE, UE checks available service and comprises the message of indicating available service to other entities transmissions that are connected with UE, is real available so that what service other entities can find out for UE.Hereinafter employed term " information on services notice " is the process that is used for after state changes to the information on services of other entity notice indication available service.
Other entities can be the entity or the network nodes of any type that can be connected with UE, as another UE.Though is UE for mark is simple with other entity descriptions, clearly, it does not limit the scope of the invention.Hereinafter, an entity is called UE-A, and another entity is called UE-B.
The UE state is defined as one group of characteristic that expression participates in the environment of the UE in the connection.These characteristics comprise that GERAN, DTM GERA and UTRAN zone, PS territory block (barring), data rate and IMS service availability.Block and mean that the operator limits UE and use reservation service (as the PS service) in specific cell.For example, when specific cell because the restriction of the PS service ability of sub-district and can not receive service request from UE the time, this just is called operator PS service and blocks.Change by the Event triggered state.This incident can be transfer, PS is attached/disconnect, the change of the situation in the zone that IMS registration, user receive service, service provider's policy changes etc.State changes the change that may or may not cause the service that can use for UE.
UE-ASL is the tabulation of the current service that can use for UE.After the state of UE changes, upgrade UE-ASL.UE-ASL is the service list of comparing with the UE-ASL of its other party in advance, and comprises the service of supporting service list (UE-SSL) selection from UE.UE-SSL is the service list that COS that ability, the UE according to UE ordered and system has allowed UE etc. is preset.Therefore, UE-SSL is the tabulation by all services of UE support.UE-SSL can be upgraded by user or service operations person.The UE-ASL of UE-A is represented by UE-ASL-A, and the UE-ASL of UE-B is represented by UE-ASL-B.
ASL is defined as tabulation with the common service of UE-ASL-A and UE-ASL-B.Therefore, ASL is the tabulation by the available service of the connection between UE-A and the UE-B.ASL can comprise the more high-rise service of picture CS service or PS service, or the service of the classification PS such as Multimedia Message service (MMS) and file transfer protocol (FTP) (FTP).Each participates in the user notification ASL of UE to correspondence, so that UE can select desired service.Selectively, each UE automatically selects and realizes optimal service according to the pre-programmed selection criterion from ASL.
Above-mentioned ASL, UE-ASL are to be stored in information on services among the UE, relevant with UE with UE-SSL, are used for reference in the future.
The present invention has presented two exemplary embodiments about the information on services notice.An exemplary embodiment is characterised in that between the information on services commutation period and exchanges UE-ASL, and another exemplary embodiment is characterised in that between the information on services commutation period and exchanges ASL.
Exemplary embodiment 1
Fig. 2 is that diagram is used for the flow chart to the UE-A of user notification ASL operation according to exemplary embodiment of the present invention, when the UE-A generation state that is connected with UE-B changes incident.
With reference to Fig. 2,, between UE-A and UE-B, connect in step 200.UE-A and UE-B receive the service such as audio call.When incident takes place step 202 UE-A, in step 204, UE-A determines whether this incident has triggered the change of the state of UE-A.If the state of UE-A remains unchanged as Reference numeral 203 is indicated, then UE-A is back to step 202.If the state of UE-A changes as Reference numeral 205 is indicated, then in step 206, UE-A checks that the UE-ASL-A relevant with the state change also stores UE-ASL-A.This UE-ASL-A is the tabulation of the service that UE can support after state changes.
In step 208, how the UE-A decision exchanges and how to carry out correlated process about message, so that send UE-ASL-A to UE-B.Message exchange scheme depends on user or operator's preference.When each incident took place, message exchange scheme can be selected by user or operator, or in a single day selects message exchange scheme when first incident takes place, and then uses it continuously.According to this exemplary embodiment, CS signaling and IMS signaling are the examples of message exchange scheme.Respectively in CS signaling shown in Fig. 7 and Fig. 4 and IMS signaling.
In step 210, according to the message exchange scheme that is determined, UE-A sends UE-ASL-A to UE-B.In step 212, UE-A determines whether to receive UE-ASL-B.UE-B experienced that stateless changes and therefore UE-A do not have under the situation of UE-ASL-B, UE-A needs receive UE-ASL-B indicated in Reference numeral 211.In this case, in step 214, according to message exchange scheme, UE-A receives UE-ASL-B from UE-B, with its storage, and advances to step 220 in step 218.In step 216, UE-A can send to UE-B and reply (ACK) signal, the successful reception of notice UE-ASL-B.On the other hand, had at UE-A under the situation of UE-ASL-B, UE-A does not need to receive UE-ASL-B, and is indicated as Reference numeral 213.In this case, UE-ASL-A directly forwards step 220 to.
In step 220, UE-A is UE-ASL-A and UE-ASL-B relatively, and in step 222, determines whether to change ASL according to comparative result.If indicated as Reference numeral 221, ASL does not change, and then UE-A is back to step 202.If indicated as Reference numeral 223, change ASL, then in step 224, UE-A upgrades ASL.ASL is the tabulation of the service that can support jointly of UE-A and UE-B, and therefore it is total by UE-ASL-A and UE-ASL-B.In step 226, UE-A is that user A sends the ASL that upgrades to the user of UE-A, keeps existing simultaneously and connects.Selectively, according to the program that can prestore, UE-A forwards the service of selecting to from the ASL that upgrades.
Fig. 3 is the flow chart of diagram according to the operation of the UE-B of first exemplary embodiment of the present invention.
With reference to Fig. 3,, between UE-A and UE-B, connect in step 300.In step 302, UE-B receives UE-ASL-A from UE-A, and uses the UE-ASL-A that is received to replace the UE-ASL-A of storage in step 304, that is to say, upgrades UE-ASL-A.In step 306, UE-B determines whether to send UE-ASL-B.Send UE-ASL-B if desired, then in step 308, UE-B sends UE-ASL-B and advances to step 312.In step 310, UE-B can receive the ack signal that indication UE-ASL-B successfully receives from UE-A.On the contrary, if do not need to send UE-ASL-B, then UE-B directly forwards step 312 to.
In step 312, UE-B is UE-ASL-A and UE-ASL-B relatively, and determines whether to change ASL in step 314 according to comparative result.If indicated as Reference numeral 313, ASL does not change, and then UE-B is back to step 302.If indicated as Reference numeral 315, change ASL, then in step 316, UE-B upgrades ASL.In step 316, UE-B is the ASL of user B update notifications to the user of UE-B, keeps existing simultaneously and connects.Selectively, according to the program that prestores, UE-B forwards the service of selecting to from the ASL that upgrades.Configurator is so that all realize identical service in UE-A and UE-B.
As mentioned above, upgrade and to be used for the ASL that connects between UE-A and the UE-B, keep simultaneously connecting, and to the ASL of user notification through upgrading of this join dependency.Can on display or by voice, make this notice.
To make below as UE-A and move to CSI when zone from the CS zone, according to the description of the operation of exemplary embodiment of the present invention.
Fig. 4 is the figure of diagram according to the IMS signaling of first exemplary embodiment of the present invention.The CSI service is available for UE 400 (UE-A) and UE 410 (UE-B).UE-A is used for the CS territory 402 that CS calls out, and (CS territory-A) also is used for IMS core network 404 (the IMS core network-A) of IMS calling.Similarly, UE-B is used for the CS territory 408 that CS calls out (CS territory-B) also is used for IMS core network 406 (the IMS core network-B) of IMS calling.
With reference to Fig. 4, in step 412, UE-A and UE-B are conducting the CS audio call.When in step 414, when UE-A realized transferring by moving into CSI zone (as the UTRAN zone), in step 416, UE-A upgraded UE-ASL-A, makes it comprise the CSI available information.CSI available information indication CSI service in current state is available.UE-A determines to exchange messages with UE-B by the IMS signaling.If UE-A is not the IMS registration, then in step 418, UE-A carries out the IMS registration to IMS core network-A.In step 420, UE-A sends UE-ASL-A in the support header of UE-B in OPTIONS+ message.If UE-ASL-A only comprises the CSI available information, then UE-ASL-A is identical with CSI available information in this exemplary embodiment of the present invention.In other words, UE-A comprises whole UE-ASL-A or CSI available information, as the variant (variation) of the UE-ASL-A in the OPTIONS+ message.
OPTIONS+ message is the improvement version by the OPTIONS message of conversation initialized protocol (SIP) definition.OPTIONS+ message is used to inquire that the ability of its other party and its response message are 200 OK.According to exemplary embodiment of the present invention, OPTIONS message and OPTIONS+ message can be used.Under the situation of OPTIONS message, when UE-A when UE-B sends OPTI ONS message, UE-B sends CSI available information (" CSI can use ") in " supports " header of 200 OK message.If UE-B sends OPTIONS message to UE-A, then UE-A sends CSI available information (support: CSI can use) in the support header of 200 OK message.Under the situation of OPTIONS+ message, it further comprises the support header with information on services informing function.That is to say that OPTIONS+ message can have the information on services of transmitter (transmitter) and the simple inquiry in the support header.
Fig. 5 A diagram is according to the structure of the OPTIONS+ message of exemplary embodiment of the present invention.With reference to Fig. 5 A, OPTIONS+ message 500 further comprises the support header except general OPTIONS message.Support header that the information on services of transmitter is provided, for example, the CSI available information.
Referring again to Fig. 4, when receiving OPTIONS+ message, in step 422, IMS core network-A transports OPTIONS+ message to IMS core network-B, and in step 424, IMS core network-B also transports OPTIONS+ message to UE-B.In step 426, UE-B uses and comes the UE-ASL-A of updated stored from the CSI available information of OPTIONS+ message extraction.If UE-B need send UE-ASL-B to UE-A, then in step 428,430 and 432, it sends UE-ASL-B to UE-A in 200 OK+ message.200OK+ message is equivalent to the ack signal of OPTIONS+ message.If UE-ASL-B only comprises the CSI available information, then UE-ASL-B is identical with the CSI available information.In other words, UE-B comprises whole UE-ASL-B or CSI available information, as the variant of the UE-ASL-B in the 200 OK+ message.
Can be added into by the support header that will have the information on services informing function in the general SIP 200 OK message and make up 200 OK+ message.Fig. 5 B illustrates the structure according to the 200OK+ message of exemplary embodiment of the present invention.With reference to Fig. 5 B, 200 OK+ message 502 further comprise the support header except general 200 OK message.Support header to comprise the information on services of transmitter, as CSI available information (support: CSI can use).If do not need to send UE-ASL-B, then in step 434,436 and 438, UE-B sends general 200 OK message as ack signal to UE-A.
After receiving 200 OK+ or 200 OK message, when needing in step 440, UE-A upgrades UE-ASL-B, compares UE-ASL-A and UE-ASL-B in step 442, and upgrades ASL in step 444.In step 448, UE-B also compares UE-ASL-A and UE-ASL-B, and upgrades ASL in step 450.In step 446 and 452, UE-A and UE-B notify its user CSI service available.When the user asked, corresponding UE sent the setup requests that is used for the CSI service to its other party.
Use description to the CS signaling of the message between UE-A and UE-B now.UE-A sends service information to UE-B by NOTIFY.NOTIFY is to be used for sending customizing messages and not influencing the signalling system No.7 message (No.7 signaling message) that ongoing CS calls out to its other party.It is unidirectional.According to exemplary embodiment of the present invention, the information on services that changes is added in the notice description of NOTIFY.
Fig. 6 diagram is according to the structure of the NOTIFY of exemplary embodiment of the present invention.With reference to Fig. 6, each 7 place value with the notice description field has defined user's time-out, user's continuation in NOTIFY, holder (bearer) changes and CSI can use.In the graphic situation of Fig. 6 institute, the user suspends, the user continues and holder's change is set to 0000000,0000001,0000010.Can be with CSI with being set to ' xxxxxxx ', as the bit combination except the bit combination that is used for above other purposes.
Except the available service indication, NOTIFY can be with a plurality of information relevant with available service are provided.For example, in the CSI service, can indication in notice is described ' CSI-384kbp s ' and ' CSI can use '.
Fig. 7 is the figure of diagram according to the CS signaling of first exemplary embodiment of the present invention.The CSI service is available for UE 700 (UE-A) and UE 710 (UE-B).UE-A is used for (CS territory-A) and be used for IMS core network 704 (the IMS core network-A) of IMS calling, the CS territory 702 that CS calls out.Similarly, UE-B is used for (CS territory-B) and be used for IMS core network 706 (the IMS core network-B) of IMS calling, the CS territory 708 that CS calls out.NOTIFY uses device request (FAR) message and equipment to accept (FAA) message as ISDN (Integrated Service Digital Network(ISDN)) user side (ISUP).
With reference to Fig. 7, in step 712, UE-A and UE-B are conducting the CS audio call.When in step 714, when UE-A was implemented to the transfer in CSI zone (as the UTRAN zone), in step 716, UE-A upgraded UE-ASL-A, makes it comprise the CSI available information.Here, UE-A determines to exchange messages with UE-B by the CS signaling.
In step 718, UE-A sends UE-ASL-A (or CSI available information) to CS territory-A in NOTIFY.In step 720, CS territory-A sends UE-ASL-A to user profile (UUI) field to CS territory-B the user of FAR message, and CS territory-B comprises the FAR message in the NOTIFY, and in step 722 to UE-B transmission NOTIFY.In step 724, UE-B uses from the UE-ASL-A of the UE-ASL-A updated stored of NOTIFY extraction.In step 726, UE-B sends UE-ASL-B to UE-A in NOTIFY then.In step 728, CS territory-B sends UE-ASL-B to CS territory-A in the UUI of FAA message field, and in step 730, CS territory-A sends the NOTIFY that comprises UE-ASL-B to UE-A.If do not need to send UE-ASL-B, execution in step 726,728 and 730 not then.
When needs, UE-A upgrades UE-ASL-B in step 732, compares UE-ASL-A and UE-ASL-B in step 734, and upgrades ASL in step 736.If also not to IMS core network-A registration, then in step 738, it carries out the IMS registration to IMS core network-A to UE-A.In step 742, UE-B also compares UE-ASL-A and UD-ASL-B, and upgrades ASL in step 744.In step 740 and step 746, UE-A and UE-B send the ASL of renewal to its user, and be available with notice CSI service.
Each UE can periodically send OPTIONS or OPTIONS+ message, to describe the state of its other party.Under the situation of CSI service, if other UE move to GERAN zone, plane by transferring from the UTRAN zone, then the user can to find out the CSI service unavailable by sending OPTIONS or OPTIONS+ message.For example, if UE-B does not reply the OPTIONS/OPTIONS+ message that sends from UE-A, then UE-A determines that UE-B moves to the CSI unusable area by transfer, and notifies user A accordingly.That is to say that each UE describes other side's state by periodically sending OPTIONS/OPTIONS+ message.
Exemplary embodiment 2
Between the information on services commutation period, exchange ASL.
Fig. 8 is that diagram is used for the flow chart to the UE-A of user notification ASL operation according to another exemplary embodiment of the present invention, when the UE-A generation state that is connected with UE-B changes incident.
With reference to Fig. 8,, between UE-A and UE-B, connect in step 800.When in step 802, when incident took place UE-A, in step 804, UE-A determined whether this incident has triggered the change of the state of UE-A.When indicated as Reference numeral 803, when not having state to change, UE-A is back to the generation of step 802 with monitoring events.When indicated as Reference numeral 805, when existence changed, UE-A checked the change that is changed caused UE-ASL-A by state, and upgraded UE-ASL-A in step 806, and the UE-ASL-A that relatively stores in step 808 and the UE-ASL-A of renewal.In step 810, UE-A determines according to comparative result whether ASL changes.Under situation about changing as Reference numeral 811 indicated ASL, in step 812, UE-A upgrades ASL.If indicated as Reference numeral 809, ASL does not change, and then UE-A is back to step 802.If UE-A does not have UE-ASL-B, then UE-A can carry out as the information on services notification procedure in first exemplary embodiment of the present invention.
In step 814, UE-A selects message exchange scheme, and for example IMS signaling and CS signaling come to operate to UE-B transmission ASL and according to selected message exchange scheme.Message by the IMS signaling shown in Figure 10, and in the message of passing through the CS signaling shown in Figure 11 and Figure 12.In step 816, UE-A sends ASL to UE-B, and in step 820 to user notification ASL.In step 818, UE-A can receive the ack signal of the successful reception of indication ASL from UE-B.During above step, keep the connection of step 800.
Fig. 9 is the flow chart of diagram according to the operation of the UE-B of second exemplary embodiment of the present invention.
With reference to Fig. 9,, between UE-A and UE-B, connect in step 900.In step 902, UE-B receives ASL from UE-A, uses the ASK of the ASL updated stored received in step 904, and the ASL that upgrades to user notification in step 908.In step 906, UE-B can send the ack signal of the successful reception of indication ASL to UE-A.During above step, still keep the connection of step 900.
To make below as UE-A and move to CSI when zone from the CS zone, according to the description of the operation of exemplary embodiment of the present invention, the present invention is not limited to this.
Figure 10 is the figure of the IMS signaling of diagram second exemplary embodiment according to the present invention.The UE that incident has taken place sends the ASL that changes to another UE, rather than each UE compares the UE-ASL of its UE-ASL and reception.The CSI service all is available for UE 1000 (UE-A) and UE 1010 (UE-B).UE-A is used for (CS territory-A) and be used for IMS core network 1004 (the IMS core network-A) of IMS calling, the CS territory 1002 that CS calls out.Similarly, UE-A is used for (CS territory-B) and be used for IMS core network 1006 (the IMS core network-B) of IMS calling, the CS territory 1008 that CS calls out.
With reference to Figure 10, in step 1012, UE-A and UE-B are conducting the CS audio call.When in step 1014, when UE-A realized transferring by moving into CSI zone (as the UTRAN zone), in step 1016, UE upgraded UE-ASL-A, makes it comprise the CSI available information.In step 1018, UE-A compares the UE-ASL-B of UE-ASL-A and storage, and upgrades ASL in step 1020 according to comparative result.If determine to send ASL by the IMS signaling, then the IMS that carries out to IMS core network-A as UE-A when step 1022 needs registers.In step 1024, UE-A sends the ASL that upgrades in OPTIONS+ message to UE-B.If ASL only comprises the CSI available information, then ASL is identical with CS available information in this exemplary embodiment of the present invention.Unless otherwise, otherwise whole ASL or CSI available information can be sent to UE-B.
In step 1026 and step 1028, send OPTIONS+ message to UE-B via IMS core network-B.In step 1030, UE-B is according to OPTIONS+ information updating ASL, and sends the ACK of 200 OK message as the successful reception of indication ASL in step 1032,1034 and 1036.In step 1038 and step 1040, the ASL that UE-A and UE-B upgrade to its user notification.
Each UE can periodically send OPTIONS or OPTIONS+ message, to describe the state of its other party.Under the situation of CSI service, if other UE move to GERAN zone, plane by transferring from the UTRAN zone, then the user can to find out the CSI service unavailable by sending OPTIONS or OPTIONS+ message.
Figure 11 is the figure of diagram according to the CS signaling of second exemplary embodiment of the present invention, use FAR and FAA.The CSI service is available for UE1100 (UE-A) and UE1110 (UE-B).UE-A is used for (CS territory-A) and be used for IMS core network 1104 (the IMS core network-A) of IMS calling, the CS territory 1102 that CS calls out.Similarly, UE-B is used for (CS territory-B) and be used for IMS core network 1106 (the IMS core network-B) of IMS calling, the CS territory 1108 that CS calls out.NOTIFY uses FAR and FAA as ISUP.
With reference to Figure 11, in step 1112, UE-A and UE-B are conducting the CS audio call.When in step 1114, when UE-A carried out the transfer in CSI zone (as the UTRAN zone), in step 1116, UE-A upgraded UE-ASL-A, makes it comprise the CSI available message.In step 1118, UE-A is UE-ASL-A and the UE-ASL-B that is stored relatively, and upgrades ASL in step 1120 according to comparative result.When determining to send ASL by the CS signaling, in step 1122, UE-A sends ASL through renewal to UE-B in NOTIFY.If ASL only comprises the CSI available information, then ASL is identical with CSI available information in this exemplary embodiment of the present invention.Notification message has graphic structure among Fig. 6.
In step 1124, CS territory-A sends the CSI available information to CS territory-B in the UUI of FAR message field, and in step 1126, CS territory-B sends the CSI available information to UE-B in NOTIFY.In step 1128, UE-B uses the CSI available information that extracts from NOTIFY to come the ASL of updated stored.In step 1130, UE-B sends the NOTIFY that comprises the CSI available information to CS territory-B then.
In step 1132, CS territory-B sends the CSI available information to CS territory-A in the UUI of FAA message field, and in step 1134, CS territory-A sends the CSI available information to UE-A in NOTIFY.When needs, in step 1136, UE-A carries out the registration to the IMS of IMS core network-A.In step 1138 and 1140, UE-A and UE-B send ASL from renewal to its user serves available with notice CSI.
Figure 12 is the figure of diagram according to the CS signaling of second exemplary embodiment of the present invention, use user-to-user information message (USR).The CSI service all is available for UE 1200 (UE-A) and UE 1210 (UE-B).UE-A is used for (CS territory-A) and be used for IMS core network 1204 (the IMS core network-A) of IMS calling, the CS territory 1202 that CS calls out.Similarly, UE-B is used for (CS territory-B) and be used for IMS core network 1206 (the IMS core network-B) of IMS calling, the CS territory 1208 that CS calls out.Compare with graphic process among Figure 11, the isup message of sending NOTIFY between CS territory-A and CS territory-B is a USR message.
For using the USR message among the ISUP, will use the indication of USR message during the CS call setup, between UE, to exchange during the calling.Graphic call setup comprises USR indication exchange (step 1212 is to step 1222) among Figure 12.
With reference to Figure 12, in step 1212, UE-A is provided with indication will use the USR indication of USR message in the SETUP message that is used for the CS call setup, and send SETUP message to UE-B.In step 1214, the CS territory-A that is connected with UE-A sends the IAM message that has the USR indication to the CS territory that is connected with UE-B-B.In step 1216, CS territory-B sends the SETUP message that has the USR indication to UE-B.The UE-B storage then in step 1218, sends the CONNECT message that has the USR indication about the USR indication of UE-A to UE-A.In step 1220, CS territory-B is answering to CS territory-A and is sending the USR indication in message (ANM) message, and in step 1222, CS territory-A sends the CONNECT message that has the USR indication to UE-A.
After call setup, in step 1224, UE-A and UE-B are conducting the CS audio call.When in step 1226, UE-A realizes that when the transfer in CSI zone (as the UTRAN zone) in step 1228, UE-A upgrades UE-ASL-A makes it comprise the CSI available information.In step 1230, UE-A compares the UE-ASL-B of UE-ASL-A and storage, and upgrades ASL in step 1232 according to comparative result.When determining by CS signaling transmission ASL, in step 1234, UE-A sends the ASL that upgrades in NOTIFY to UE-B.If ASL only comprises the CSI available information, then ASL is identical with CSI available information in this exemplary embodiment of the present invention.
In step 1236, CS territory-A sends the CSI available information to CS territory-B in the UUI of USR message field, and in step 1238, CS territory-B sends the CSI available information to UE-B in NOTIFY.In step 1240, UE-B uses the ASL of the CSI available information updated stored of extracting from NOTIFY.In step 1242, UE-B sends the NOTIFY that comprises the CSI available information to CS territory-B then.
In step 1244, CS territory-B sends the CSI available information to CS territory-A in the UUI of USR message field, and in step 1246, CS territory-A sends the CSI available information to UE-A in NOTIFY.When needs, in step 1248, UE-A carries out the registration to the IMS of IMS core network-A.In step 1250 and step 1252, UE-A and UE-B send ASL from renewal to its user serves available with notice CSI.
Exemplary apparatus
Figure 13 is the block diagram of the UE equipment (promptly for UE-A) according to exemplary embodiment of the present invention.
With reference to Figure 13, UE comprises event monitor 1300, information on services extractor (extractor) 1202, service information store 1304, ASL decision device (decider) 1306, message sender/receiver 1308 and user notification device (notifier) 1310.
Event monitor 1300 monitors the generation of the incident of the change in the state that triggers UE.Information on services extractor 1302 compares the UE-ASL (being UE-ASL-B) of its UE-ASL (being UE-ASL-A) and its other party and when needs, upgrades UE-ASL-A according to the incident that is monitored by event monitor 1300.Service information store 1304 storages and the information on services of management such as ASL, UE-ASL and UE-SSL.ASL decision device 1306 compares the UE-ASL of storage in the service information store 1304 and determines whether the ASL change takes place.Under the situation that ASL changes, ASL decision device 1306 is updated in the ASL of storage in the service information store 1304.
Message sender/receiver 1308 and other entity Exchange Service information that in calling is connected, participate in.Particularly, message sender/receiver 1308 is determined message exchange schemes and to the ASL of the UE-ASL of other entity update notifications or the renewal in aforementioned process.It also receives the ASL that upgrades UE-ASL or renewal from other entities.When upgrading ASL, user notification device 1310 is to the ASL of user notification through upgrading, and promptly notifies user CSI service visually (as text, image or chart), acoustically (as passing through voice) or available by vibration.
Figure 14 is the block diagram according to the network equipment of exemplary embodiment of the present invention.The network equipment is a network node, and message sends to UE-B by this network node from UE-A in network.For example, network node can be CS-territory mobile switching centre (MSC) or the CSCF (CSCF) in the IMS core network.
With reference to Figure 14, the network equipment comprises and connects builder (establisher) 1400, information on services receiver 1402 and serve information generator 1404.
Connecting builder 1400 connects between UE and other UE.Information on services receiver 1402 receives information on services, and promptly user or UE are to the renewal UE-ASL or the ASL of other UE transmissions.Information on services transmitter 1404 sends the information on services that is received to other UE that are connected with UE.
According to exemplary embodiment of the present invention, when the incident of the state that triggers a UE who participates in calling takes place, the back takes place to each user notification available service in incident.Therefore, can directly use various services from user's visual angle, and can it be provided to the user from service provider's visual angle.Though illustrated and described the present invention with reference to some exemplary embodiment of the present invention, but for a person skilled in the art, be appreciated that, under the situation of the four corner that does not break away from defined the spirit and scope of the present invention of claims and equivalent thereof, can make in form and the various changes on the details it.

Claims (43)

1. the state according to first subscriber equipment (UE:UE-A) in the wireless communication system comes the method that notifying service information changes, and comprises step:
Foundation is connected with the 2nd UE's (UE-B), and connects the service of reception by this;
When the incident of the change of the state that triggers UE-A at this viability takes place, change the available service tabulation (UE-ASL-A) of upgrading UE-A according to this state; And
Send the information on services of this UE-ASL-A of indication through upgrading to UE-B.
2. the method for claim 1 further comprises step:
Obtain the available service tabulation (UE-ASL-B) of UE-B;
Relatively be somebody's turn to do UE-ASL-A and UE-ASL-B, and relatively upgrade public available service tabulation (ASL) according to this through upgrading; And
Should keep this connection simultaneously through the ASL of renewal to user notification.
3. method as claimed in claim 2, wherein this UE-ASL-B obtaining step comprises step: receive UE-ASL-B from UE-B.
4. the method for claim 1, wherein this information on services forwarding step comprises step: use conversation initialized protocol (SIP) OPTIONS message to send this information on services by internet protocol multimedia subsystem (IMS) signaling.
5. the method for claim 1, wherein this information on services forwarding step comprises step: use the NOTIFY based on isdn user side (ISUP) to send this information on services by circuit switched (CS) signaling.
6. the state according to first subscriber equipment (UE:UE-A) among the 2nd UE (UE-B) in the wireless communication system receives the method that information on services changes, and comprises step:
Foundation is connected with UE-A's, and connects the service of reception by this;
When the incident of the change of the state that triggers UE-A at this viability takes place, receive the information on services that changes the available service tabulation (UE-ASL-A) of indication UE according to this state from UE-A;
Upgrade public available service tabulation (ASL) by the available service tabulation (UE-ASL-B) of comparing UE-ASL-A and UE-B; And
Should keep this connection simultaneously through the ASL of renewal to user notification.
7. method as claimed in claim 6 further comprises step: after receiving this information on services, send UE-ASL-B to UE-A.
8. method as claimed in claim 6, wherein this information on services receiving step comprises step: use conversation initialized protocol (SIP) OPTIONS message to receive this information on services by internet protocol multimedia subsystem (IMS) signaling.
9. method as claimed in claim 6, wherein this information on services receiving step comprises step: use the NOTIFY based on isdn user side (ISUP) to receive this information on services by circuit switched (CS) signaling.
10. the state of the subscriber equipment according to the network equipment in the wireless communication system (UE) comes the method that notifying service information changes, and comprises step:
Connect between a UE (UE-A) and the 2nd UE (UE-B) by this network equipment, and provide service by this connection;
When the incident of the change of the state that triggers UE-A at this viability takes place, receive the information on services that changes the available service tabulation (UE-ASL-A) of indication UE-A according to this state from UE-A; And
Send this information on services by another network equipment that is connected with UE-B to UE-B.
11. method as claimed in claim 10, wherein this receiving step and this forwarding step all comprise step: use conversation initialized protocol (SIP) OPTIONS message to use internet protocol multimedia subsystem (IMS) signaling.
12. method as claimed in claim 10, wherein this receiving step and this forwarding step all comprise step: use the NOTIFY based on isdn user side (ISUP) to use circuit switched (CS) signaling.
13. the equipment that the state that is used for according to first subscriber equipment (UE:UE-A) of wireless communication system comes notifying service information to change comprises:
Event monitor is used for setting up and being connected of the 2nd UE (UE-B), and monitors the generation of incident of change of the state of triggering UE-A at this viability;
Service information store is used to store the available service tabulation (UE-ASL-A) of UE-A, available service tabulation (UE-ASL-B) and the public available service tabulation (ASL) of UE-B;
The information on services extractor is used for being updated in the UE-ASL-A that this service information store is stored when incident takes place, and controls this through the UE-ASL-A of renewal and the output of UE-ASL-B;
The ASL comparator is used for upgrading this ASL by the UE-ASL-A and the UE-ASL-B of relatively this renewal;
Message sender and receiver are used for sending this information on services through the UE-ASL-A of renewal of indication to UE-B; And
Notifying device is used for should keeping this connection simultaneously through the ASL of renewal to user notification.
14. equipment as claimed in claim 13, wherein this service information store receives UE-ASL-B from this message sender and receiver.
15. equipment as claimed in claim 13, wherein this message sender and receiver use conversation initialized protocol (SIP) OPTIONS message to send this information on services by internet protocol multimedia subsystem (IMS) signaling.
16. equipment as claimed in claim 13, wherein this message sender and receiver use the NOTIFY based on isdn user side (ISUP) to send this information on services by circuit switched (CS) signaling.
17. one kind is used for receiving the equipment that information on services changes according to the state of first subscriber equipment (UE:UE-A) among the 2nd UE (UE-B) of wireless communication system, comprises:
Connect builder, be used to set up and being connected of UE-A, and connect the service of reception by this;
Message sender and receiver are used for receiving the information on services that changes the available service tabulation (UE-ASL-A) of this UE of indication according to this state from UE-A when the incident of the change of the state that triggers UE-A at this viability takes place;
The ASL decision device is used for upgrading public available service tabulation (ASL) by the available service tabulation (UE-ASL-B) of comparing UE-ASL-A and UE-B; And
Notifying device is used for should keeping this connection simultaneously through the ASL of renewal to user notification.
18. equipment as claimed in claim 17, wherein this message sender and receiver send UE-ASL-B to UE-A after receiving this information on services.
19. equipment as claimed in claim 17, wherein this message sender and receiver use conversation initialized protocol (SIP) OPTIONS message to receive this information on services by internet protocol multimedia subsystem (IMS) signaling.
20. equipment as claimed in claim 17, wherein this message sender and receiver use the NOTIFY based on isdn user side (ISUP) to receive this information on services by circuit switched (CS) signaling.
21. a state that is used for the subscriber equipment (UE) according to wireless communication system comes the network equipment of notifying service information change, comprising:
Connect builder, be used between a UE (UE-A) and the 2nd UE (UE-B), connecting and providing service by this connection;
The information on services receiver is used for receiving the information on services that changes indication UE-A available service tabulation (UE-ASL-A) according to this state from UE-A when the incident of the change of the state that triggers UE-A at this viability takes place; And
The information on services transmitter is used for sending this information on services by another network equipment that is connected with UE-B to UE-B.
22. equipment as claimed in claim 21, wherein this information on services receiver and this information on services transmitter use conversation initialized protocol (SIP) OPTIONS message to use internet protocol multimedia subsystem (IMS) signaling.
23. equipment as claimed in claim 21, wherein this information on services receiver and service information generator use the NOTIFY based on isdn user side (ISUP) to use circuit switched (CS) signaling.
24. the method that the state according to first subscriber equipment (UE:UE-A) in the wireless communication system comes notifying service information to change comprises step:
Foundation is connected with the 2nd UE's (UE-B), and connects the service of reception by this;
When the incident of the change of the state that triggers this UE at this viability takes place, change the available service tabulation (UE-ASL-A) of upgrading UE-A according to this state;
The relatively available service tabulation (UE-ASL-B) of UE-ASL-A that should upgrade and UE-B;
If according to this comparative result, there is conversion in the public available service tabulation (ASL), then upgrade this ASL; And
Send the information on services of this ASL of indication through upgrading to UE-B; And
Should keep this connection simultaneously through the ASL of renewal to user notification.
25. method as claimed in claim 24 further comprises step: receive UE-ASL-B from UE-B.
26. method as claimed in claim 25, wherein this information on services forwarding step comprises step: use conversation initialized protocol (SIP) OPTIONS message to send this information on services by internet protocol multimedia subsystem (IMS) signaling.
27. method as claimed in claim 25, wherein this information on services forwarding step comprises step: use the NOTIFY based on isdn user side (ISUP) to send this information on services by circuit switched (CS) signaling.
28. the state according to first subscriber equipment (UE:UE-A) among the 2nd UE (UE-B) in the wireless communication system receives the method that information on services changes, and comprises step:
Foundation is connected with UE-A's, and connects the service of reception by this;
When the incident of the change of the state that triggers UE-A at this viability takes place, receive the information on services that changes indication public service tabulation (ASL) according to this state from UE-A; And
Should keep this connection simultaneously through the ASL of renewal to user notification.
29. method as claimed in claim 28, wherein this information on services receiving step comprises step: use conversation initialized protocol (SIP) OPTIONS message to receive this information on services by internet protocol multimedia subsystem (IMS) signaling.
30. method as claimed in claim 28, wherein this information on services receiving step comprises step: use the NOTIFY based on isdn user side (ISUP) to receive this information on services by circuit switched (CS) signaling.
31. the method that the state according to the subscriber equipment in the network equipment in the wireless communication system (UE) comes notifying service information to change comprises step:
Connect between a UE (UE-A) and the 2nd UE (UE-B) by this network equipment, and provide service by this connection;
When the incident of the change of the state that triggers UE-A at this viability takes place, receive the information on services that changes the public available service tabulation (ASL) of indication UE-A and UE-B according to this state from UE-A; And
Send this information on services by another network equipment that is connected with UE-B to UE-B.
32. method as claimed in claim 31, wherein this receiving step and forwarding step all comprise step: use conversation initialized protocol (SIP) OPTIONS message to use internet protocol multimedia subsystem (IMS) signaling.
33. method as claimed in claim 31, wherein this receiving step and forwarding step, its each all comprise step: use NOTIFY to use circuit switched (CS) signaling based on isdn user side (ISUP).
34. an equipment that is used for coming according to the state of first subscriber equipment (UE:UE-A) among the UE-A of wireless communication system the notifying service information change comprises:
Event monitor is used for setting up and being connected of the 2nd UE (UE-B), and monitors the generation of the incident that changes in the state of triggering UE-A at this viability;
Service information store is used to store the available service tabulation (UE-ASL-A) of UE-A, available service tabulation (UE-ASL-B) and the public available service tabulation (ASL) of UE-B;
The information on services extractor is used for when the generation incident, is updated in the UE-ASL-A that stores in this service information store and controls the output of this renewal UE-ASL-A and UE-ASL-B;
The ASL comparator is used for by relatively should UE-ASL-A and UE-ASL-B through upgrading upgrading this ASL;
Message sender and receiver are used for sending this information on services through the ASL of renewal of indication to UE-B; And
Notifying device is used for should keeping this connection simultaneously through the ASL of renewal to user notification.
35. equipment as claimed in claim 34, wherein this service information store receives UE-ASL-B from this message sender and receiver.
36. equipment as claimed in claim 34, wherein this message sender and receiver use conversation initialized protocol (SIP) OPTIONS message to send this information on services by internet protocol multimedia subsystem (IMS) signaling.
37. equipment as claimed in claim 34, wherein this message sender and receiver use the NOTIFY based on isdn user side (ISUP) to send this information on services by circuit switched (CS) signaling.
38. one kind is used for receiving the equipment that information on services changes according to the state of first subscriber equipment (UE:UE-A) among the 2nd UE (UE-B) of wireless communication system, comprises:
Connect builder, be used to set up and being connected and receiving and serve of UE-A by this connections;
Message sender and receiver are used for receiving the information on services that changes the public available service tabulation of indication (ASL) according to this state from UE-A when the incident of the change of the state that triggers UE-A at this viability takes place; And
Notifying device is used for should keeping this connection simultaneously through the ASL of renewal to user notification.
39. equipment as claimed in claim 38, wherein this message sender and receiver use conversation initialized protocol (SIP) OPTIONS message to receive this information on services by internet protocol multimedia subsystem (IMS) signaling.
40. equipment as claimed in claim 38, wherein this message sender and receiver use the NOTIFY based on isdn user side (ISUP) to receive this information on services by circuit switched (CS) signaling.
41. a state that is used for the subscriber equipment (UE) according to wireless communication system comes the network equipment of notifying service information change, comprising:
Connect builder, be used between a UE (UE-A) and the 2nd UE (UE-B), connecting and providing service by this connection;
The information on services receiver is used for receiving the information on services that changes the public available service tabulation (ASL) of indication UE-A and UE-B according to this state from UE-A when the incident of the change of the state that triggers UE-A at this viability takes place; And
The information on services transmitter is used for sending this information on services by another network equipment that is connected with UE-B to UE-B.
42. equipment as claimed in claim 41, wherein this information on services receiver and this information on services transmitter use conversation initialized protocol (SIP) OPTIONS message to use internet protocol multimedia subsystem (IMS) signaling.
43. equipment as claimed in claim 41, wherein this information on services receiver and this information on services transmitter use the NOTIFY based on isdn user side (ISUP) to use circuit switched (CS) signaling.
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