CN101577891A - Method and system for downloading emergency numbers of network side - Google Patents
Method and system for downloading emergency numbers of network side Download PDFInfo
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- CN101577891A CN101577891A CNA2008102143108A CN200810214310A CN101577891A CN 101577891 A CN101577891 A CN 101577891A CN A2008102143108 A CNA2008102143108 A CN A2008102143108A CN 200810214310 A CN200810214310 A CN 200810214310A CN 101577891 A CN101577891 A CN 101577891A
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Abstract
The invention provides a system and a method for downloading emergency numbers of a network side. The method comprises that: (a) a user terminal sends an attachment request to the network side; (b) the network side judges that the user terminal does not meet attachment conditions, and then returns an attachment rejecting massage carrying the emergency numbers; and (c) the user terminal receives the attachment rejecting massage and stores the emergency numbers in the massage. The system and the method can download the emergency numbers in time and ensure a user to realize emergency service.
Description
Technical field
The present invention relates to the communications field, download the method for local emergency number in particular to a kind of user terminal from network side.
Background technology
GPRS (Generai Packet Radio Service) is a kind of mobile pocket data business based on GSM, and user oriented provides the IP that moves grouping or X.25 connects.Gprs system is based on packet-switch technology, and the user can use various high-speed data services by GPRS under mobile status.Still in development, this access technology is called as GERAN (GSM EDGE RadioAccess Network) to GPRS at present.
UMTS (Universal Mobile Telecommunication system, universal mobile telecommunications system) is the third generation radio digital communication system that 3GPP (3rd Generation Partnership Project, third generation partner program) proposes.Replaced Gb mouth based on the IuPS mouth of ATM based on frame relay, air interface has replaced the GSM technology by wcDMA (the wideband-code Division MultipleAccess) technology based on Frequency Division Duplexing (FDD), therefore UMTS can provide higher speed than GPRS, to support multimedia service and internet browsing.Radio Access Network is called as UTRAN (Universal Terrestrial Radio Access Network, global system for mobile communications wireless access network) among the UMTS.GERAN and UTRAN all can be linked into the core net of UMTS.
Development along with network architecture flattening, and the appearance that multiple high-speed wideband moves access way impels mobile communications network to propose LTE/SAE (Long term Evolution/System ArchitectureEvolution, Long Term Evolution/system architecture evolution) framework theory of future generation, comprise and make the wireless communication system of evolution that higher transmission rate, shorter transmission delay, lower cost can be provided, support the mobility between the inner connecting system of 3GPP simultaneously, and the mobility between 3GPP connecting system and the non-3GPP connecting system or the like.LTE/SAE further is defined as EPS network (Evolved Packet System, grouping evolution system) according to the standard progress, and the EPS network also as a kind of access means in IMS territory, impels the IMS framework to be able to evolution and development.Network element newly-increased in the EPS framework has: E-URAN (Evolved RAN): the wireless access network of evolution can provide higher up-downgoing speed, lower transmission delay and reliable more wireless transmission.MME (Mobility Management Entity): chain of command functional entity, be in charge of and store UE context (such as UE/ user ID, mobility management states, user security parameters etc.), for the user distributes temporary mark, and be responsible for this user is carried out authentication.
The framework of EPS as shown in Figure 1, network element wherein has:
E-UTRAN (Evolved-Universal Terrestrial Radio Access Network, the Universal Terrestrial Radio Access Network network of evolution): be follow-on wireless access network, can provide higher up-downgoing speed, lower transmission delay and reliable more wireless transmission.Wherein the main network entity of E-UTRAN is eNodeB.
MME (Mobility Management Entity, the chain of command functional entity): be in charge of and store the UE context (such as the UE/ user ID, mobility management states, user security parameters etc.), for the user distributes temporary mark, when quartering at this tracing area or this network, is responsible for UE this user is carried out authentication.
Serving GW (be called for short S-GW), the user plane functions entity is mobile anchor point between EPS system and traditional 3GPP system and the mobile anchor point between the E-UTRAN.
PDN GW (public data network IAD), the user plane functions entity is responsible for the user face data route and is handled, and termination is in the downlink data of the UE of idle state, when the downlink data that mails to UE arrives, initiates paging.The context of management and storage UE is such as IP bearer service parameter and network internal routing iinformation etc.
PDN (Packet Data Network): packet data network, for the user provides packet-based service network.
Existing 2G/3G mobile network comprises:
RAN (Radio Access Network): wireless access network, terminal is by the packet-based core networks (Packet Core) of RAN access EPS system, and RAN comprises UTRAN and GERAN.
SGSN (Serving GPRs Support Node): Serving GPRS Support Node, preservation user's route zone position information is responsible for safety and access control.SGSN links to each other with UTRAN by the Iu mouth, links to each other with GERAN by the Gb mouth.SGSN links to each other with SAE GW among the LTE/SAE, and packet switch domain service is provided.
The IMS business network comprises:
The user contracting data in home subscriber server (Home Subscriber Server is called for short HSS) management CS territory, packet domain (PS) and IMS territory.
During business realizing, UE can insert the IMS territory by LTE/SAE, also can insert the IMS network by the PS network (i.e. GERAN/UTRAN and SGSN part among the figure) of 2G and 3G, enjoys the business of IMS.
Under the prior art, after UE roams in the visited network start, need at first be attached to the EPS network, request visit net is set up the IP carrying for it then, and this carrying can be considered as the default IP carrying of UE.After UE has set up default IP carrying, can be registered to home network IMS domain, after the registration, can enjoy the abundant business function that the IMS territory is provided.
Fig. 2 is under the prior art, and UE is linked into the EPS network, carries out the process of network attachment, IP carrying foundation.
S201, UE initiates the network attachment request in order to be linked into the SAE network to eNodeB, has carried the sign of UE, the network accessibility of UE, the information such as indication of request distributing IP therein;
S202, eNodeB are that UE selects a MME of service for it, and will adhere to and ask to be forwarded to this MME, and the important informations such as sign with UE also carry to this MME simultaneously;
S203, MME sends position updating request to the HSS of home network, carries the sign of MME, the sign of UE in the message, to inform the current zone of being inserted of UE;
S204, HSS finds out the user data of UE according to the sign of UE, sends to MME.In these certain customers' data of UE, mainly comprise: whether allow to be linked into this visit net, default APN (Access Point Name, be called for short APN), information such as amount of bandwidth, if HSS decision UE uses the PDN GW of home network, then comprise the address information of this home network PDN GW simultaneously;
S205, MME receives user data, checks whether UE is allowed access to network, returns to HSS and receives user's response; If MME finds UE problems such as roaming restriction or access restriction are arranged, MME will forbid that UE adheres to, and notice HSS.
S206, HSS send to MME and confirm position renewal response;
S207, MME are that UE selects a S-GW, and the request of setting up default bearing to its transmission.In this request, MME inform sign, the MME of the information of S-GW necessity: UE sign, be the indication of UE distributing IP address, default bandwidth information, PDN GW address etc.;
S208, S-GW send the request of setting up default bearing to PDN GW.In this request, S-GW informs the address of the information of PDN GW necessity: S-GW, default bandwidth information, for the indication of UE distributing IP address etc.;
S209, if necessary, PDN GW is this UE institute's configured strategy and charging regulation, decision information to PCRF request;
S210, PDN GW sets up default bearer according to strategy and charging decision information that PCRF returns, and returns carrying to S-GW and set up response;
S211, S-GW sends the response that default bearing is set up to MME;
S212, MME send to eNodeB and adhere to response, show that the request that is attached to network of UE is received;
S213, eNodeB sends voice bearer to UE and sets up request, requires UE to preserve the important information that carrying is set up, and open corresponding ports.In message, carried: bearer network ID, PDN GW address, the IP address of distributing to UE, bandwidth information etc.;
S214, UE sends voice bearer to eNodeB and sets up response;
S215, eNodeB notice MME attaching process is finished;
S216, MME sends more new bearer request to S-GW, notifies sign, address into the eNodeB of UE service;
S217, S-GW sends more new bearer response to MME;
S218, if PDN GW is not the HSS appointment, then MME sends position updating request to HSS, is notified to the address information that HSS is the PDN GW that UE served, HSS upgrades this information.
When shown in Figure 2 adhere to, after the IP loading establishing process finishes, UE promptly is attached to local EPS network, being linked into a PDN and having set up an IP carrying (may be the IP carrying of home network, also may be the IP carrying of visit net), thereafter, UE can use this IP carrying to initiate the IMS registration process to home network, can carry out the IMS business after registration is finished.
Urgent call (Emergency Call) is distinctive a kind of voice service function in the mobile communication system.Even be provided with the restriction exhalation and do not insert under the situation of subscriber identification module (sIM) at portable terminal, as long as in the zone that the mobile network covers, when the user dial emergency numbers as: 110, after 119,911 etc., calling can forward corresponding EC (PSAP) to as police office, fire brigade, first-aid centre etc., thereby provides 24 hours emergency assistance services to the masses.The operation of whole system is finished by the common cooperation of emergency services such as telecom operators and public security, fire-fighting, hospital.
Under the conventional situation, urgent call all is to be placed in circuit (CS) territory, and along with the progressively IPization of network, the PS territory also begins progressively to support emergence call service, and utilizes the IMS system to do call signaling control for emergent session.Current, the emergence call service that utilizes the IMS territory to provide can abbreviate the IMS urgent call as.
UE just need know the IMS emergency numbers of this locality if will support the IMS emergency call function in local (the actual location of UE, can at home network or roaming network).In the UE mobile phone, only dispose at present the IMS emergency numbers of global general-use, as 911,112 etc., and the emergency numbers of ownership place.The local emergency number that does not have each visited network.So when UE roamed into visited network, UE need normally adhere to the back at network and download local IMS emergency numbers.
UE can have a lot of modes to download local IMS emergency numbers after the PS network normally adheres to, and downloading by DHCP (Dynamic Host Configuration Protocol, dynamic host allocation protocol) server is more common mode.As shown in Figure 2, when UE after the PS network normally adheres to, UE downloads local IMS emergency numbers from DHCP.Step is as follows:
Step 301, UE normally adhere to successfully at visited network.
Step 302, UE initiate local emergency number download request to the Dynamic Host Configuration Protocol server of visited network;
Step 303, Dynamic Host Configuration Protocol server are issued UE with the local emergency number, and UE preserves.
From above prior art as can be seen, UE need adhere at visited network after roaming into visit ground from ownership place, obtains local emergency numbers.But when the EPS network attachment, see step S205, when UE had the roaming restriction or inserts restriction, MME can refuse the request of adhering to of UE, and UE can't adhere at visited network, also just can't obtain the local emergency number of visited network.Like this,, will be taken as common subscriber number and give refusal, can't adopt the urgent call flow process to realize emergence call service if UE dials the emergency numbers on visit ground.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of downloading emergency numbers of network side, and the time download emergency numbers, ensure that the user realizes urgency traffic.
For solving the problems of the technologies described above, the invention provides a kind of method of downloading emergency numbers of network side, this method comprises:
(a) network side all user terminals in the broadcasting service area send broadcast, carry emergency numbers in broadcast;
(b) emergency numbers in the broadcast of user terminal reception broadcast and storage reception.
For solving the problems of the technologies described above, the present invention also provides a kind of system of downloading emergency numbers of network side, and this system comprises network system and user terminal, wherein,
Network system, all user terminals that are used in the broadcasting service area send broadcast, carry emergency numbers in this broadcast;
User terminal is used to receive broadcast, and the emergency numbers in the broadcast of storage reception.
For solving the problems of the technologies described above, the present invention also provides a kind of method of downloading emergency numbers of network side, and this method comprises:
(a) user terminal sends to network side and adheres to request;
(b) network side judges that user terminal does not meet the condition of adhering to, and returns refusal and adheres to message, wherein carries emergency numbers;
(c) user terminal receives and refuses to adhere to message, and the emergency numbers in the storing message.
Further, described emergency numbers is the local emergency number, in the step (b), is associated with the Mobile Country Code MCC MCC of current network during described user terminal storage of emergency numbers.
Further, in the step (b), when described user terminal receives emergency numbers, judge whether there has been emergency numbers earlier, if the MCC of the association of original emergency numbers and the MCC of current network are inconsistent, then delete former emergency numbers, preserve the emergency numbers that receives, and be associated with the MCC of current network.
For solving the problems of the technologies described above, the present invention also provides a kind of system of downloading emergency numbers of network side, and this system comprises network system and user terminal, wherein,
Network system is used to receive the request of adhering to of user terminal, and judges whether user terminal meets the condition of adhering to, and does not refuse to adhere to message if meet then to send to the terminal use, carries emergency numbers in the message;
User terminal is used for sending the message of adhering to request and receiving network system to network system, adheres to message as if the message that receives for refusal, and then the refusal of storage reception adheres to the emergency numbers in the message.
Further, described emergency numbers is the local emergency number, is associated with the Mobile Country Code MCC MCC of current network during described user terminal storage of emergency numbers.
Further, when described user terminal receives emergency numbers, judge whether there has been emergency numbers earlier, if the MCC of the association of original emergency numbers and the MCC of current network are inconsistent, then delete former emergency numbers, preserve the emergency numbers that receives, and be associated with the MCC of current network.
For solving the problems of the technologies described above, the present invention also provides a kind of method of downloading emergency numbers of network side, and this method comprises:
(a) user terminal is initiated emergency attached request to network side, wherein carries urgent sign and emergency numbers and downloads sign;
(b) network side is set up emergency bearing according to emergency attached request, carries emergency numbers in the emergency bearing context;
(c) user terminal receives and storage of emergency numbers.
For solving the problems of the technologies described above, the present invention also provides a kind of system of downloading emergency numbers of network side, and this system comprises network system and user terminal, wherein,
Network system is used to receive the emergency attached request that user terminal sends, and sets up emergency bearing according to emergency attached request, and carries emergency numbers by the emergency bearing context and be handed down to user terminal;
User terminal is used for sending emergency attached request to network system, and is used to preserve the emergency numbers that network system issues.
Adopt method and system of the present invention, after UE roams into access network, can obtain emergency numbers by broadcast mode.If UE does not insert authority, also can in adhering to refuse information, carry emergency numbers; Or UE initiates emergency attached, sets up at emergency bearing and carries emergency numbers in the context.Like this, just can solve effectively UE adhere to when unsuccessful can't the download emergency number problem, ensured that the user roams into each network and can realize urgency traffic.
Description of drawings
Fig. 1 is the configuration diagram of EPS access network.
Fig. 2 is that UE adheres to and carries the process of setting up being linked into the EPS network of network in the prior art.
Fig. 3 is that UE downloads the process of local emergency number in the prior art by Dynamic Host Configuration Protocol server after the EPS network normally adheres to.
Fig. 4 is a first embodiment of the invention, and network side is downloaded the process schematic diagram of local emergency number by broadcast mode.
Fig. 5 is a second embodiment of the invention, and UE downloads the process schematic diagram of local emergency number in normal attachment flow.
Fig. 6 is a third embodiment of the invention, and UE downloads the process schematic diagram of local emergency number in the emergency attached flow process.
Embodiment
When user terminal was linked into network, the method for down loading of emergency numbers of network side provided by the invention had following three kinds of modes:
One, network side uses broadcast mode, and all user terminals in the broadcasting service area send broadcast, carry emergency numbers and download to user terminal UE in system broadcast message;
Two, UE is attached to network and is rejected, and network side carries emergency numbers and downloads to UE in adhering to refuse information;
Three, UE initiates emergency attached request, and network side carries emergency numbers and downloads to UE in the emergency bearing context.
Also describe the present invention in conjunction with the embodiments in detail below with reference to accompanying drawing.
First execution mode:
Network side uses broadcast mode, and all user terminals in the broadcasting service area send broadcast, carry the local emergency number and download to UE in system broadcast message.
Present embodiment adopts the mode of wireless common signal channel download as shown in Figure 4, adopts wireless channel message to carry the local emergency number, downloads to UE by wireless common signal channel, and UE preserves in mobile phone.In broadcast, UE can obtain the Mobile Country Code MCC (MCC, Mobile CountryCode) that present networks sends.
Under broadcast mode, multi-medium data (as text, sound, image, video) in wireless common signal channel from unidirectional all users that send in the broadcast service zone of data source.This pattern uses common signal channel to transmit to number of users without limits, effective save radio resources, and the user need not to register and can receive broadcast data.
See Fig. 4, inventive concept is used wireless common signal channel, carries the local emergency number and download to UE in the information-bearing message of wireless common signal channel, sees following steps:
Step 401:UE roams into visited network, and mobile phone can (BCH BroadcastChannel) receives the broadcast channel that the concurrent existing network network of radiofrequency signal is sent in the base station at wireless broadcast channel;
Mobile phone and Radio Network System carry out message transmission by wireless common signal channel.
Step 402: wireless access system (RAN, Radio Access Network) regularly by wireless common signal channel to UE transmitting system broadcast, and at Broadcast Control Channel (BCCH, BroadcastControl Channel) system broadcast message is carried the local emergency number, and system broadcast message is broadcast to the UE in the coverage;
The local emergency number can be in wireless access system static configuration, or wireless access system is by obtaining the local emergency number to modes such as Dynamic Host Configuration Protocol server obtain.
After step 403:UE receives the system message of Broadcast Control Channel (BCCH) at wireless common signal channel,, just directly store the local emergency number that receives, and carry out related with the MCC of current network the local emergency number if the local emergency number is empty in the mobile phone.
If had the local emergency number in the mobile phone, this moment the UE Mobile Country Code MCC (MCC that need relatively be associated with the local emergency number, Mobile Country Code) consistency, if the MCC of the MCC of emergency numbers association and current network is inconsistent in the mobile phone, just need to delete the local emergency number of storing in the mobile phone, and the local emergency number that the system broadcast message of Broadcast Control Channel (BCCH) is carried is kept in the mobile phone, and carries out related with the MCC of current network the local emergency number.
If the MCC of the local emergency number association that has in the mobile phone is consistent with the MCC of current network, UE need make a strategic decision according to local policy, and whether needs are preserved the local emergency number of reception again, can set up strategy on their own as the cellphone subscriber, or the strategy of setting according to operator.
If MCC is consistent, local emergency number downloaded stored is described, under the situation that the emergency numbers of each department does not have to change in a country, just do not need download emergency number continually, in order to avoid cause the consumption (influencing battery and internal memory) in mobile phone life-span.If the emergency numbers of each department is different in country, when need starting shooting, the user upgrades once.So the user can select " start is downloaded once " or strategies such as " the national code unanimity are not downloaded ".Same, operator also can be with policy configurations on mobile phone.
More than be that example describes, can in service area, provide the network system of broadcasting service also to be suitable for by user terminal certainly with the Radio Access Network.
Corresponding with above method, the system of present embodiment downloading emergency numbers of network side comprises network system and user terminal, wherein,
Network system is used for regularly sending broadcast by wireless common signal channel all user terminals in the broadcast service zone, carries the local emergency number in this broadcast;
User terminal, be used to receive the radiofrequency signal that send the base station, find the broadcast singal of network, and the system message that is used to receive Broadcast Control Channel, and the local emergency number of storage reception, and carry out related with the MCC of current network system the local emergency number.
Second execution mode:
UE is attached to network and is rejected, and network side carries the local emergency number and downloads to UE in adhering to refuse information.
The present invention 2 sees shown in Figure 5, and main thought is to use UE to roam into new network, and the flow process of normally adhering at new network, when UE adhere to be rejected after, in refuse information, carry the local emergency number, and issue UE, UE preserves the local emergency number.
After UE moved to another EPS network, UE need adhere to again just and can use in new network.Step is as follows:
Step 501:UE initiates to adhere to request to MME in the EPS network, carries IMSI or GUTI, reaches information such as request PDN-GW distributing IP address;
Step 502:MME carries out authentication to UE, and sets up NAS (Network AssociationSecurity) network security alliance, and MME initiates the user position update request to HSS then;
Step 503:HSS sends out the insertion subscriber data message to MME, and user's subscription data information is issued MME, comprises the qos parameter of an APN tabulation and each APN correspondence, also includes the user in the subscription data and whether opens information such as roaming;
Step 504:MME judges according to user contracting data whether user terminal meets the condition of adhering to, if user terminal user in visited network has restrictions such as roaming restriction or restriction access, the UE access that is under an embargo, MME will refuse the request of adhering to of UE, and send out refusal to UE and adhere to message, carry the information such as cause value, local emergency number of refusal in the message;
After step 505:UE receives and adheres to refuse information,, just directly store the local emergency number that receives, and carry out related with the MCC of current network the local emergency number if the local emergency number is empty in the mobile phone.
The MCC of current network is that the broadcast by network system obtains.
If had the local emergency number in the mobile phone, this moment the UE Mobile Country Code MCC (MCC that need relatively be associated with the local emergency number, Mobile Country Code) consistency, if the MCC of the MCC of emergency numbers association and current network is inconsistent in the mobile phone, just need to delete the local emergency number of storing in the mobile phone, and will adhere to the local emergency number that carries in the refuse information and be kept in the mobile phone, carry out related with the MCC of current network the local emergency number then.
If the MCC of the local emergency number association that has in the mobile phone is consistent with the MCC of current network, UE need make a strategic decision according to local policy, and whether needs are preserved the local emergency number of reception again, can set up strategy on their own as mobile phone, or the strategy of setting according to operator.
The present embodiment method for down loading describes as network side with the EPS network, and is just spendable after adhering to as long as existing certainly other networks need user terminal to finish, and all can use method for down loading of the present invention based on the inventive method thought.
Corresponding with above method, the system of present embodiment downloading emergency numbers of network side comprises network system and user terminal, wherein,
Network system is used to receive the request of adhering to of user terminal, and judges whether user terminal meets the condition of adhering to, and does not refuse to adhere to message if meet then to send to the terminal use, carries emergency numbers in the message;
Network system can be the EPS network system, comprises MME and HSS, wherein,
MME is used to receive user terminal and adheres to request and user terminal is carried out authentication, set up network security alliance, and to the request of HSS initiation user position update, also be used for judging according to the user data that HSS returns whether the user meets the condition that inserts of forbidding, refuse to adhere to message if meet then to send, carry the cause value and the local emergency number information of refusal in the message to user terminal;
HSS is used for returning subscriber data message according to the user position update request of MME, and user data refers to user's subscription data information, comprise the qos parameter of an APN tabulation and each APN correspondence, and whether the user opens the information of roaming.
User terminal is used for sending the message adhere to request and to receive network system to network system, adheres to message if judge the message that receives for refusal, the emergency numbers that receives of storage then, and the local emergency number and the Mobile Country Code MCC of current network are carried out related,
If had the local emergency number in the mobile phone, this moment the UE Mobile Country Code MCC (MCC that relatively is associated with the local emergency number, Mobile Country Code) consistency, if the MCC of the MCC of emergency numbers association and current network is inconsistent in the mobile phone, just need to delete the local emergency number of storing in the mobile phone, and will adhere to the local emergency number that carries in the refuse information and be kept in the mobile phone, carry out related with the MCC of current network the local emergency number then.
If the MCC of the local emergency number association that has in the mobile phone is consistent with the MCC of current network, UE need make a strategic decision according to local policy, and whether needs are preserved the local emergency number of reception again, can set up strategy on their own as mobile phone, or the strategy of setting according to operator.
The 3rd execution mode:
UE initiates emergency attached request, and network side carries the local emergency number and downloads to UE in the emergency bearing context.
Present embodiment is seen shown in Figure 6, and main thought is to use UE to roam into new network, and the flow process of adhering at new network urgent.Because of reason such as roaming restriction etc. is arranged, UE adhere to request by the network refusal after, just initiate emergency attached request, network is set up at emergency bearing and is carried the local emergency number in the context and give UE, UE preservation local emergency number.
After UE moved to another EPS network, UE need adhere to again just and can use in new network.Step is as follows:
Step 601:UE initiates to adhere to request to MME in the EPS network, carries IMSI or GUTI, reaches information such as request PDN-GW distributing IP address;
Step 602:MME carries out authentication to UE, and sets up the NAS Security Association, and MME initiates the user position update request to HSS then;
Step 603:HSS sends out the insertion subscriber data message to MME, and user's subscription data information is issued MME, comprises the qos parameter of an APN tabulation and each APN correspondence, also includes the user in the subscription data and whether opens information such as roaming;
Step 604:MME judges according to user contracting data whether UE meets the condition of adhering to, if UE has roaming restriction or inserts restriction, and UE accesss that be under an embargo, MME adheres to request with refusal, and sends out to UE and to refuse to adhere to message, carries the cause value of refusal;
After step 605:UE is rejected, need judge whether to have downloaded the local emergency number this moment, if the local emergency number is empty in the mobile phone, or the MCC of the MCC of the local emergency number association in the mobile phone and current network is inconsistent, just need deletion local emergency number in the past, and initiate the emergency attached flow process, download the emergency numbers of local network by the emergency bearing context;
Step 606:UE initiates emergency attached request in the EPS network, carry urgent sign and local emergency number and download mark in adhering to request.Urgent sign shows that this adheres to is emergency attached, and the local emergency number is downloaded mark and shown that initiating emergency attached is to give the emergency numbers of user's download local network for network;
After step 607:MME receives the emergency attached request of UE, ignore user's roaming or insert restriction such as restriction, the user is carried out authentication and sets up the NAS Security Association;
Step 608:MME initiates to set up emergency bearing to S-GW and sets up request, carries the information such as address of urgent sign, emergency numbers download mark, P-GW in the request message, and S-GW is that emergency bearing is set up user's face passage;
Step 609:S-GW initiates to set up emergency bearing to P-GW and sets up request, carries urgent sign in the request message, emergency numbers is downloaded information such as mark, S-GW user's face channel address, and P-GW is that emergency bearing is set up user's face passage and distributed the IP address of UE;
Step 610:P-GW downloads the marker for judgment needs to terminal downloads local emergency number according to emergency numbers, and P-GW sets up in the response message returning emergency bearing to S-GW, carries the information such as IP address of local emergency number and UE;
After step 611:S-GW receives that response message is set up in the carrying of P-GW, return emergency bearing to MME and set up response, the information such as IP address of carrying local emergency number and UE in the response message;
After step 612:MME received that response message is set up in the carrying of S-GW, MME just initiated radio bearer by wireless access system to UE and sets up request, the information such as IP address of carrying local emergency number and UE in the request message.
Do not comprise the local emergency number in the response message if the carrying that MME receives is set up, MME can set up at radio bearer and insert the local emergency number in the request, and the local emergency number can be in the MME static configuration.Or download to MME by Dynamic Host Configuration Protocol server.
After step 613:UE receives radio bearer foundation request, preserve IP address and the local emergency number of UE, reserve emergency bearing resource, and to the network side anxious success message that adheres to of feeling nervous, UE need carry out when preserving the local emergency number with the MCC sign indicating number of local network related;
After step 614a:UE finishes the preservation of local emergency number,, need starting logout flow path this moment, discharge the emergency bearing resource of having set up because of the user does not carry out urgent call.
Step 614b: network side is according to the local emergency number mark, after in the emergency bearing context, carrying emergency numbers and downloading to UE, and when receiving the emergency attached success message of UE, also can starting logout flow path, discharge the emergency bearing resource of having set up.
The present embodiment method describes as network side with the EPS network, and other networks just are that to need subscriber equipment to adhere to the rear spendable certainly, can adopt the inventive method based on present embodiment thought.
Corresponding with above method, the system of present embodiment downloading emergency numbers of network side comprises network system and user terminal, wherein,
Network system is used to receive user terminal and adheres to request, if normally adhere to request and do not meet the condition of adhering to, then refusal adheres to, if emergency attached request, then ignore access conditions restriction, set up emergency bearing, and carry emergency numbers by the emergency bearing context and be handed down to user terminal;
Emergency attached request comprises urgent sign and emergency numbers download sign, and urgent sign is emergency attached request in order to show this request, emergency numbers download sign, and in order to show, this request is in order to download the emergency numbers of local network.
User terminal is used for sending to network system and adheres to request, when adhering to request when being rejected, is used for sending emergency attached request according to the emergency numbers download policy to network system, and is used to preserve the emergency numbers that network issues.
When user terminal receives emergency numbers, judge whether there has been the local emergency number earlier, if do not have, then preserve the emergency numbers that receives, and be associated with the Mobile Country Code MCC of this Network Transmission, if have, whether the Mobile Country Code MCC MCC that then judges former emergency numbers association is consistent with the MCC of current network, if inconsistent, then deletes terminal Central Plains local emergency number, and preserve new emergency numbers, carry out related with the MCC of current network simultaneously; If consistent, then user terminal determines whether to preserve the local emergency number of reception according to local policy.Local policy is the strategy that user terminal or operator set.
As can be seen from the above description, use the present invention, can realize under the UE roaming condition, visited network is in time given UE with the local emergency number notifying, even UE can't normally adhere at visited network like this, it is professional also can to use the local emergency number to adopt the urgent call flow process to realize, avoid UE local emergency number in the time can't normally adhering to download, when causing the user to dial the local emergency number, UE can't judge that it is urgency traffic and the situation of carrying out call denial, can solve UE effectively adhering to the problem that to download the local emergency number when getting nowhere, ensure that the user roams into each network and can realize urgency traffic.
Above-mentioned several embodiment not only can be applied to visited network, also can be applied to the download of local emergency number in the home network, and the method for realization is consistent with flow process.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of method of downloading emergency numbers of network side is characterized in that, this method comprises:
(a) network side all user terminals in the broadcasting service area send broadcast, carry emergency numbers in broadcast;
(b) emergency numbers in the broadcast of user terminal reception broadcast and storage reception.
2, a kind of system of downloading emergency numbers of network side is characterized in that, this system comprises network system and user terminal, wherein,
Network system, all user terminals that are used in the broadcasting service area send broadcast, carry emergency numbers in this broadcast;
User terminal is used to receive broadcast, and the emergency numbers in the broadcast of storage reception.
3, a kind of method of downloading emergency numbers of network side is characterized in that, this method comprises:
(a) user terminal sends to network side and adheres to request;
(b) network side judges that user terminal does not meet the condition of adhering to, and returns refusal and adheres to message, wherein carries emergency numbers;
(c) user terminal receives and refuses to adhere to message, and the emergency numbers in the storing message.
4, method as claimed in claim 3 is characterized in that: described emergency numbers is the local emergency number, in the step (b), is associated with the Mobile Country Code MCC MCC of current network during described user terminal storage of emergency numbers.
5, method as claimed in claim 4, it is characterized in that: in the step (b), when described user terminal receives emergency numbers, judge whether there has been emergency numbers earlier, if the MCC of the association of original emergency numbers and the MCC of current network are inconsistent, then delete former emergency numbers, preserve the emergency numbers that receives, and be associated with the MCC of current network.
6, a kind of system of downloading emergency numbers of network side is characterized in that, this system comprises network system and user terminal, wherein,
Network system is used to receive the request of adhering to of user terminal, and judges whether user terminal meets the condition of adhering to, and does not refuse to adhere to message if meet then to send to the terminal use, carries emergency numbers in the message;
User terminal is used for sending the message of adhering to request and receiving network system to network system, adheres to message as if the message that receives for refusal, and then the refusal of storage reception adheres to the emergency numbers in the message.
7, system as claimed in claim 6 is characterized in that: described emergency numbers is the local emergency number, is associated with the Mobile Country Code MCC MCC of current network during described user terminal storage of emergency numbers.
8, system as claimed in claim 7, it is characterized in that: when described user terminal receives emergency numbers, judge whether there has been emergency numbers earlier, if the MCC of the association of original emergency numbers and the MCC of current network are inconsistent, then delete former emergency numbers, the emergency numbers that preservation receives, and be associated with the MCC of current network.
9, a kind of method of downloading emergency numbers of network side is characterized in that, this method comprises:
(a) user terminal is initiated emergency attached request to network side, wherein carries urgent sign and emergency numbers and downloads sign;
(b) network side is set up emergency bearing according to emergency attached request, carries emergency numbers in the emergency bearing context;
(c) user terminal receives and storage of emergency numbers.
10, a kind of system of downloading emergency numbers of network side is characterized in that: this system comprises network system and user terminal, wherein,
Network system is used to receive the emergency attached request that user terminal sends, and sets up emergency bearing according to emergency attached request, and carries emergency numbers by the emergency bearing context and be handed down to user terminal;
User terminal is used for sending emergency attached request to network system, and is used to preserve the emergency numbers that network system issues.
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| CNA2008102143108A CN101577891A (en) | 2008-08-22 | 2008-08-22 | Method and system for downloading emergency numbers of network side |
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| CNA2008102143108A CN101577891A (en) | 2008-08-22 | 2008-08-22 | Method and system for downloading emergency numbers of network side |
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| CN101577891A true CN101577891A (en) | 2009-11-11 |
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