CN102065068A - Implementation method, system and equipment for emergency call - Google Patents
Implementation method, system and equipment for emergency call Download PDFInfo
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- CN102065068A CN102065068A CN2009102377618A CN200910237761A CN102065068A CN 102065068 A CN102065068 A CN 102065068A CN 2009102377618 A CN2009102377618 A CN 2009102377618A CN 200910237761 A CN200910237761 A CN 200910237761A CN 102065068 A CN102065068 A CN 102065068A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
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- 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]
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- 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
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/08—Upper layer protocols
- H04W80/10—Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]
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Abstract
The embodiment of the invention discloses an implementation method, system and equipment for an emergency call. The method comprises: receiving an emergency call request from IP (Internet Protocol) multimedia subsystem (IMS) by emergency call process equipment; obtaining the source address information of a fixed access terminal, which is carried in the emergency call request; inquiring the source address information of the fixed access terminal by an emergency call process equipment, and obtaining the emergency call route information corresponding to the fixed access terminal; adding the emergency call route information into an emergency call request by the emergency call process equipment; transmitting to the IMS network; and causing the emergency call request to be routed to the emergency call center. The emergency call of the fixed access terminal is realized when a network operator does not have position for conversion position connection and the storage resource of storage function by the embodiment of the invention.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of implementation method, system and equipment of urgent call.
Background technology
Urgent special service such as the fire alarm that provides for the user on telecommunications network, robber and police, medical first aid, traffic accident warning is provided emergence call service (Emergency Call Service).IMS (IP Multimedia Subsystem, the IP multimedia system) the emergence call service support fixedly accesses terminal and moves and accesses terminal, one of them key point is to obtain customer position information, and the IMS core net is finished the switching of terminal to its location EC according to the customer position information that obtains.
In the prior art in a kind of flexible exchanging network the handling process to urgent call be: by BSC (Base Station Controller, base station controller) position attribution of discovery call source, and the position attribution of call source delivered to end office (EO), end office (EO) is according to this call source positional information, add emergency telephone number prefix or suffix, deliver to gateway exchange, by the unified processing of gateway exchange urgent call.If move tie link is arranged, then the direct sending EC with EC; Do not have tie link if move with EC, then by with the signatory interworking protocol of other operators, by other operators for commentaries on classics.But this mode is not supported the emergence call service that fixedly accesses terminal.
In the prior art in the standard IMS network, the network architecture figure that is used to realize urgent call as shown in Figure 1.Wherein, for the urgent call handling process that fixedly accesses terminal be:
When terminal is not carried self-position information or positional information when imperfect, SBC (Session Border Controller as the IMS access device, Session Border Controller)/P-CSCF (Proxy Call Serving Control Function, Proxy Call Session Control Function) needs and CLF (Connectivity Session Location and Repository Function, connection session position and memory function) carry out alternately, obtain the complete positional information of terminal, and location information of terminals added to send to E-CSCF (Emergency-CSCF in the signaling, the emergency call session controlled function), E-CSCF uses this positional information to carry out LRF (Location Retrieval Function then, the position obtains functional entity) inquiry, obtain the routing iinformation that the user inserts the corresponding PSAP in ground, call out the most at last and be forwarded to this PSAP (Public Safety Answering Point, public safety is responded point).When target P SAP is not in the IMS network, call out and be forwarded to CS (Circuit Switch, circuit switching) territory by MGCF (Media Gateway Control Function, MGCF), finally finish calling.The problem that prior art exists is, when Virtual network operator does not possess the storage resources of CLF, can't realize the urgent call that fixedly accesses terminal.
Summary of the invention
Embodiments of the invention provide a kind of implementation method, system and equipment of urgent call, are used for can't realizing the urgent call that fixedly accesses terminal when Virtual network operator does not possess the storage resources of connection session position and memory function.
Embodiments of the invention provide a kind of implementation method of urgent call, comprising:
The urgent call treatment facility receives the emergency call request from IP multimedia system IMS network access equipment, obtains the source address information that fixedly accesses terminal of carrying in the described emergency call request;
The described source address information that fixedly accesses terminal of described urgent call treatment facility inquiry is obtained the described corresponding urgent call routing iinformation that fixedly accesses terminal;
Described urgent call treatment facility is added on described urgent call routing iinformation in the described emergency call request and sends to the IMS network, makes described emergency call request be routed to EC.
Wherein, before the emergency call request of described urgent call treatment facility reception from IP multimedia system IMS network access equipment, also comprise:
The IMS network access equipment receives the emergency call request that fixedly accesses terminal and send;
Described IMS network access equipment carries out verification to described emergency call request, when not comprising described source address information that fixedly accesses terminal and/or domain-name information in the access network sign PANI territory of described emergency call request, described source address information that fixedly accesses terminal of completion and IMS entrance domain-name information in the PANI territory of described emergency call request;
Described IMS network access equipment is sent in the emergency call request of carrying described source address information that fixedly accesses terminal and IMS entrance domain-name information in the PANI territory to the urgent call treatment facility.
Wherein, described IMS network access equipment also comprises after receiving the emergency call request that sends that fixedly accesses terminal:
Described IMS network access equipment judges whether send fixedly accessing terminal of described emergency call request registers;
When described fixedly accessing terminal then continued when having registered; Otherwise judging whether can be for unregistered fixedly accessing terminal provides urgent call, if judged result is for being then to continue, otherwise requires described fixedly accessing terminal to initiate register flow path or refuse calling.
Wherein, the described source address information that fixedly accesses terminal of described urgent call treatment facility inquiry is obtained the described corresponding urgent call routing iinformation that fixedly accesses terminal, and comprising:
Described urgent call treatment facility sends to the position with the described source address information that fixedly accesses terminal and obtains function;
Described position obtains function according to the source address information that fixedly accesses terminal, and in source address information that fixedly accesses terminal that sets in advance and on-position corresponding relation, inquires about the described on-position that fixedly accesses terminal; When inquiring the described on-position that fixedly accesses terminal, further in on-position that sets in advance and emergency numbers routing iinformation corresponding relation, inquire the urgent call routing iinformation of described on-position correspondence and send;
Described urgent call treatment facility obtains the described corresponding urgent call routing iinformation that fixedly accesses terminal according to the response that described position obtains function.
Wherein, also comprise:
Described position obtains function when not inquiring the described on-position that fixedly accesses terminal according to the source address information that fixedly accesses terminal, notifies described urgent call treatment facility;
The levels of precision of the on-position of IMS entrance domain-name information that carries in the PANI territory of the more described emergency call request of described urgent call treatment facility and the described signatory ownership that fixedly accesses terminal obtained from home signature user server HSS; And the IMS entrance domain-name information that levels of precision is higher or the described on-position that fixedly accesses terminal send to described position and obtain function;
Described position obtains function further in on-position that sets in advance and emergency numbers routing iinformation corresponding relation or in domain name and the emergency numbers routing iinformation corresponding relation, inquires the urgent call routing iinformation of described on-position correspondence and sends;
Described urgent call treatment facility obtains the described corresponding urgent call routing iinformation that fixedly accesses terminal according to the response that described position obtains function.
Wherein, described urgent call treatment facility comprises from the on-position that HSS obtains the described signatory ownership that fixedly accesses terminal:
When described urgent call treatment facility is initiated in the described session that fixedly accesses terminal, obtain the accessing position information of the described signatory ownership that fixedly accesses terminal from HSS by Cx interface.
Embodiments of the invention provide a kind of realization system of urgent call, comprising:
The IMS network access equipment is used for sending emergency call request, the source address information that fixedly accesses terminal of carrying in the described emergency call request to the urgent call treatment facility;
The urgent call treatment facility is used for obtaining the source address information that fixedly accesses terminal that emergency call request that described IMS network access equipment sends is carried; Inquire about the described source address information that fixedly accesses terminal, obtain the described corresponding urgent call routing iinformation and be added on described urgent call routing iinformation in the described emergency call request and send to the IMS network of fixedly accessing terminal, make described emergency call request be routed to EC;
The position obtains function device, and the source address information that fixedly accesses terminal that provides according to described urgent call treatment facility is provided, the inquiry urgent call routing iinformation of correspondence that fixedly accesses terminal, and offer described urgent call treatment facility.
Embodiments of the invention provide a kind of network equipment,, comprising:
Communication unit is used to receive the emergency call request from the IMS network access equipment;
Address acquisition unit is used for obtaining the source address information that fixedly accesses terminal that emergency call request that described communication unit receives is carried;
The routing iinformation acquiring unit is used for obtaining the source address information that fixedly accesses terminal that the described address acquisition unit of functional inquiry is obtained to the position of network, obtains the described corresponding urgent call routing iinformation that fixedly accesses terminal;
The routing iinformation adding device, be used for the urgent call routing iinformation that described routing iinformation acquiring unit obtains is added on described emergency call request, and send to the IMS network by described communication unit, make described emergency call request be routed to EC.
Wherein, described routing iinformation acquiring unit also is used for:
Obtain function in described position when not inquiring the described on-position that fixedly accesses terminal according to the source address information that fixedly accesses terminal, the levels of precision of the on-position of IMS entrance domain-name information that carries in the PANI territory of more described emergency call request and the described signatory ownership that fixedly accesses terminal obtained from HSS; And the IMS entrance domain-name information that levels of precision is higher or the described on-position that fixedly accesses terminal send to described position and obtain function; Obtain the response of function according to described position and obtain the described corresponding urgent call routing iinformation that fixedly accesses terminal.
Wherein, described routing iinformation acquiring unit also is used for, and when the described session that fixedly accesses terminal is initiated, obtains the accessing position information of the described signatory ownership that fixedly accesses terminal from HSS by Cx interface.
Embodiments of the invention provide a kind of IMS network access equipment, comprising:
The emergency call request receiving element is used to receive the emergency call request that fixedly accesses terminal and send;
The emergency call request processing unit, the emergency call request that is used for described emergency call request receiving element is received sends to the urgent call treatment facility, and the source address information that fixedly accesses terminal of carrying in described emergency call request.
Wherein, described emergency call request processing unit specifically is used for:
The emergency call request that the emergency call request receiving element receives is carried out verification, when not comprising described source address information that fixedly accesses terminal and/or IMS entrance domain-name information in the access network of the described emergency call request sign PANI territory, described source address information that fixedly accesses terminal of completion and IMS entrance domain-name information and send in the PANI territory of described emergency call request to the urgent call treatment facility.
Wherein, also comprise:
The emergency call request verification unit is used to judge whether send fixedly accessing terminal of described emergency call request registers; When described fixedly accessing terminal then notifies described emergency call request processing unit to handle when having registered; Otherwise judging whether can be for unregistered fixedly accessing terminal provides urgent call, if judged result is for being then to notify described emergency call request processing unit to handle, otherwise requires described fixedly accessing terminal to initiate register flow path or refuse calling.
Wherein, described IMS network access equipment is Session Border Controller SBC or Proxy Call Session Control Function P-CSCF.
Embodiments of the invention provide a kind of position to obtain function device, comprising:
Communication unit is used to receive the source address information that fixedly accesses terminal that the urgent call treatment facility provides, and sends the described corresponding urgent call routing iinformation that fixedly accesses terminal to described urgent call treatment facility;
The source address information that fixedly accesses terminal that provides according to described urgent call treatment facility is provided query unit, fixedly the access terminal urgent call routing iinformation of correspondence of inquiry.
Wherein, described communication unit also is used for: when described query unit does not inquire the described on-position that fixedly accesses terminal according to the source address information that fixedly accesses terminal, notify described urgent call treatment facility;
Described query unit, the IMS entrance domain-name information or the described on-position that fixedly accesses terminal that provide according to described urgent call treatment facility also is provided, in on-position that sets in advance and emergency numbers routing iinformation corresponding relation or in domain name and the emergency numbers routing iinformation corresponding relation, inquire the urgent call routing iinformation of described on-position correspondence.
Compared with prior art, the present invention has the following advantages:
Reception is obtained the source address information that fixedly accesses terminal of carrying in the emergency call request from the emergency call request of IMS network access equipment; According to this source address information, obtain the corresponding EC routing iinformation that fixedly accesses terminal, make emergency call request be routed to EC.Thereby when Virtual network operator does not possess the storage resources of connection session position and memory function, realized the urgent call that fixedly accesses terminal.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the emergencycallboxsystem structural representation of IMS network in the prior art;
Fig. 2 is the implementation method flow chart of the urgent call that embodiment provides among the present invention;
Urgent call flow chart when Fig. 3 is user's normal registration that embodiment provides among the present invention;
Fig. 4 is embodiment provides among the present invention the user urgent call flow chart when unregistered;
Fig. 5 is the flow chart that obtains signatory positional information that embodiment provides among the present invention;
Fig. 6 is the structural representation of the network equipment that embodiment provides among the present invention;
Fig. 7 is the structural representation of the IMS network access equipment that embodiment provides among the present invention;
Fig. 8 is the structural representation that embodiment provides among the present invention position obtains function device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiments of the invention provide a kind of implementation method of urgent call, as shown in Figure 2, comprising:
Step s201, receive emergency call request, obtain the source address information that fixedly accesses terminal of carrying in the emergency call request from the IMS network access equipment; This source address information can comprise IP address information and/or port information etc.
The source address information that step s202, inquiry fixedly access terminal is obtained the corresponding EC routing iinformation that fixedly accesses terminal;
Step s203, be added on the EC routing iinformation in the emergency call request and send to the IMS network, make emergency call request be routed to EC.
Below in conjunction with concrete network scenarios, the implementation method of the urgent call that provides in the embodiment of the invention is described.In the present network, a key point of urgent call is to obtain the positional information that fixedly accesses terminal, and core net could will be forwarded to the EC corresponding with the position that fixedly accesses terminal from the urgent call that fixedly accesses terminal.
In the implementation method of urgent call provided by the invention, customer position information uses SIP (Session Initiation Protocol, a Session initiation Protocol) extended message P-Access-Network-Info (being abbreviated as PANI) to write down and transmit.This PANI message header recording user IP address and port numbers, as:
P-Access-Network-Info：”UE-IP＝202.106.2.1”；”UE-Port＝20000；”
The IP address that promptly fixedly accesses terminal is 202.106.2.1, and port is 20000.
SBC also can insert IMS entrance domain-name information in PANI, as the domain-name information of SBC, as:
P-Access-Network-Info：”UE-IP＝202.106.2.1”；”UE-Port＝20000”；”SBC-domain＝sbc1.010.bj.chinamobile.com；”
The domain name that is the SBC territory is sbc1.010.bj.chinamobile.com.
Among the present invention, the urgent call flow process during user's normal registration comprises as shown in Figure 3:
Step s301, UE have set up with the IP of IMS by IP-CAN and have been connected, and obtained the address of inserting ground SBC, but UE do not finish registration as yet.
Step s302, UE finish back the normal IMS register flow path of home domain;
Step s303, UE initiate the Invite request of urgent call, comprise emergency service number at Request URI:
If it is urgent call that EE can detect, need in request, to carry urgent call indication " sos ";
If UE can provide the P-Access-Network-Info header field, then UE should write the access information of oneself this header field, comprising: the access way of UE, IP address information etc.;
Step s304, access ground SBC receive this Invite request, carry out the PANI header field and handle and send to local P-CSCF.Concrete:
When UE inserts ground information deficiency (no P-Access-Network-Info header field), according to local zoning information, insert domain-name information and the user source IP information (the discernible user's public network IP of SBC information) of SBC at the P-Access-Network-Info header field, and this Invite request is forwarded to local P-CSCF;
If EE Invite request has the P-Access-Network-Info header field, SBC identification UE inserts ground information, after P-Access-Network-Info header field UE carries information, insert domain-name information and the user source IP information of SBC, and this Invite request is forwarded to local P-CSCF;
After step s305, P-CSCF receive the Invite request, be identified as urgent call, P-CSCF carries out integrality and legitimacy verification to the P-Access-Network-Info header field, if there is not this header field, then P-CSCF is according to the SBC information that inserts, be responsible for the domain-name information that this header field of completion contains area code, present embodiment meta SBC domain name, and transmit this request to local E-CSCF; Need to prove herein,, after then the P-CSCF inquiry obtains user accessing information, user accessing information is inserted the P-Access-Network-Info header field, and be forwarded to local E-CSCF if P-CSCF can finish the CLF inquiry;
After step s306, E-CSCF receive the INVITE request, extract emergency numbers among P-Access-Network-Info header field user source IP information or user accessing information and the Request URI, and initiate the inquiry of user's urgent call routing number to LRF with this;
Step s307, LRF are according to user source IP information or user accessing information, and inquiry obtains the more specific location information that the user inserts, and according to customer location and emergency numbers, inquiry obtains the urgent call routing number of this area, returns to E-CSCF;
When E-CSCF can not find out in the IP address, rely on the SBC domain name earlier and obtain default route; The Cx interface of E-CSCF by this programme expansion be from the signatory positional information of HSS (Home Subscriber Server, home signature user server) download user, so as with the comparison of SBC domain name, select more accurate access information to obtain route.Can't accurately discern the user for user's insincere scene of nomadic source IP and other and insert the ground scene, E-CSCF needs and can obtain default urgency route code according to area code information inquiry in the SBC domain, and this urgent call is routed to the default urgency call center that SBC inserts ground.
E-CSCF returns mistake according to user source IP information inquiry in the PANI header field less than the user on-position; (the IP tabulation may not upgrade in time among the LRF, and perhaps the user may insert from other operators insincere IP address)
E-CSCF continues to call out route code according to SBC domain inquiring user default urgency, returns default route;
E-CSCF should be able to initiate the signatory position enquiring of user to local HSS by the expansion Cx interface, if can inquire the signatory position of user, form be " area code. districts and cities' phonetic. district phonetic ", as " 010.beijing.chaoyang ", need compare with the area code in the SBC domain, if the area code unanimity is then inquired about LRF again according to the signatory positional information of user and is obtained urgent call route code; If the area code comparison is different, then transmit urgent call by the default route of previous inquiry.Embodiments of the invention do not limit use above-mentioned " area code. districts and cities' phonetic. district phonetic " form, can also adopt the signatory positions of mode inquiring user such as postcode, as initiate the signatory position enquiring of user to local HSS, inquire postcode and be " 100047 ", and the postcode in the SBC domain is " 100000 ", then can obtain urgent call route code according to accurate postcode " 100047 ".
In the application scenarios of the present invention, stored relation comprises among the LRF: the corresponding relation of (1) source IP information and on-position, so that the source IP address that the source IP information inquiry that foundation fixedly accesses terminal fixedly accesses terminal; (2) corresponding relation of on-position and called urgent call routing iinformation is so that when the positional information that fixedly accesses terminal can be discerned, inquiry obtained corresponding urgent call routing iinformation; (3) corresponding relation of SBC domain name and urgent call routing iinformation is so that when user's accessing position information can not be discerned, obtain corresponding urgent call routing iinformation by the SBC inquiry of the domain name.
Step s308, E-CSCF receive the urgent call routing number, and it is added among the Request URI of Invite request, transmit this and ask to MGCF; Can't accurately discern the user for user's insincere scene of nomadic source IP and other and insert the ground scene, E-CSCF needs this urgent call to be routed to the unified EC that SBC inserts ground.
Step s309, MGCF according to the area code of the callee of Request URI, route requests to the called on-site GMSC in urgent center after receiving the INVITE request, enter the PLMN network;
Step s310, PLMN network be according to local urgent call route, the local EC that continues, and session is set up.
Urgent call flow process when UE is unregistered as shown in Figure 4.
Step s401, user UE have set up with the IP of IMS by IP-CAN and have been connected, and obtained the address of inserting ground SBC, but UE do not finish registration as yet;
Step s402, UE are unregistered, initiate the Invite request of urgent call;
If it is urgent call that UE can detect, need in request, to carry the urgent call indication " sos ";
If UE can provide the P-Access-Network-Info header field, then UE should write the access information of oneself this header field, comprising: the access way of UE, source address information etc.; Add self IP address (also can comprise the sos indication) at Contact header field;
UE inserts device id (equipment identifier) in the P-Prefered-Identity header field; Add self IP address at Contact header field.
Step s403, access ground SBC receive this Invite request, are identified as unregistered urgent call, and then SBC carries out following analysis:
When UE inserts ground information deficiency (no P-Access-Network-Info header field), according to local zoning information, insert domain-name information and the user source IP information of SBC at the P-Access-Network-Info header field, and this Invite request is forwarded to local P-CSCF;
If UE Invite request has the P-Access-Network-Info header field, SBC identification UE inserts ground information, after P-Access-Network-Info header field UE carries information, insert domain-name information and the user source IP information of SBC, and this Invite request is forwarded to local P-CSCF;
Step s404, P-CSCF are identified as unregistered urgent call after receiving the Invite request, if do not allow unregistered calling, then need UE to initiate register flow path with inserting; If access network allows unregistered calling, when it can provide unregistered emergency services, P-CSCF carries out verification to the P-Access-Network-Info header field, if there is not this header field, P-CSCF is according to the SBC information that inserts, be responsible for this header field information of completion and contain the SBC domain name of area code, and transmit this request to local E-CSCF; If P-CSCF can finish the CLF inquiry, after then the P-CSCF inquiry obtains user accessing information, user accessing information is inserted the P-Access-Network-Info header field, and be forwarded to local E-CSCF
Step s405, E-CSCF extract emergency numbers among P-Access-Network-Info header field user source IP information or user accessing information and the Request URI after receiving the INVITE request, and initiate the inquiry of user's urgent call routing number to LRF with this;
Step s406, LRF are according to user source IP information, and inquiry obtains the more specific location information that the user inserts, and according to customer location and emergency numbers, inquiry obtains the urgent call routing number of this area, returns to E-CSCF;
Step s407, E-CSCF receive the urgent call routing number, and it is added among the Request URI, transmit this and ask to MGCF;
Step s408, MGCF according to the area code of the callee of Request URI, route requests to the called on-site GMSC in urgent center after receiving the INVITE request, enter the PLMN network;
Step s409, PLMN network be according to local urgent call route, the local EC that continues, and session is set up.
At fixed-line subscriber, under non-nomadism scene, E-CSCF also can directly download the user's of this user's correspondence signatory positional information by Cx interface from HSS in user's registration, and signatory positional information has precedence over the expansion accessing position information that P-CSCF provides.E-CSCF passes through inquiry LRF according to signatory positional information and the emergency telephone number that the user registers acquisition, analyzes the routing number that obtains EC, again according to the urgent call of routing number route.
User UE has set up with the IP of IMS by IP-CAN and has been connected, and obtained the address of inserting ground SBC, but EE does not finish registration as yet, and this moment, UE initiated registration process, can obtain signatory positional information simultaneously when HSS obtains user signing contract information.Its flow process is as shown in Figure 5:
(1) user initiates registration process, and registration message is sent to SBC, and SBC is transmitted to visit ground P-CSCF with register requirement;
(2) P-CSCF is transmitted to user ascription area I-CSCF with register requirement, and I-CSCF is for after the user distributes S-CSCF, and S-CSCF is from HSS download user authentication information, and finishes follow-up UE authentication process.
(3) after S-CSCF finishes authentication, obtain user signing contract information to HSS.
(4) HSS returns user's CAMEL-Subscription-Information to S-CSCF, obtains user's signatory positional information simultaneously.
E-CSCF returns mistake according to user source IP information inquiry in the PANI header field less than the user on-position; (the IP tabulation may not upgrade in time among the LRF, and perhaps the user may insert from other operators insincere IP address)
E-CSCF continues to call out route code according to SBC inquiry of the domain name user default urgency, returns default route;
E-CSCF can initiate the signatory position enquiring of user to local HSS by the expansion Cx interface, if can inquire the signatory position of user, form be " area code. districts and cities' phonetic. district phonetic ", as " 010.beijing.chaoyang ", need compare with the area code in the SBC domain, if the area code unanimity is then inquired about LRF again according to the signatory positional information of user and is obtained urgent call route code; If the area code comparison is different, then transmit urgent call by the default route of previous inquiry.
Embodiments of the invention also provide a kind of realization system of urgent call, comprising:
The IMS network access equipment is used for sending emergency call request, the source address information that fixedly accesses terminal of carrying in the emergency call request to the urgent call treatment facility;
The urgent call treatment facility is used for obtaining the source address information that fixedly accesses terminal that emergency call request that the IMS network access equipment sends is carried; The source address information that inquiry fixedly accesses terminal, obtain the corresponding urgent call routing iinformation and be added on the urgent call routing iinformation in the emergency call request and send to the IMS network of fixedly accessing terminal, make emergency call request be routed to EC;
The position obtains function device, and the source address information that fixedly accesses terminal that provides according to the urgent call treatment facility is provided, the inquiry urgent call routing iinformation of correspondence that fixedly accesses terminal, and offer the urgent call treatment facility.
Embodiments of the invention also provide a kind of network equipment, as shown in Figure 6, comprising:
Routing iinformation acquiring unit 13 is used for obtaining the source address information that fixedly accesses terminal that functional inquiry address acquisition unit 12 is obtained to the position of network, obtains the corresponding urgent call routing iinformation that fixedly accesses terminal;
Routing iinformation adding device 14, the urgent call routing iinformation that is used for routing iinformation acquiring unit 13 is obtained is added on emergency call request, and sends to the IMS network by communication unit 11, makes emergency call request be routed to EC.
In addition, routing iinformation acquiring unit 10 also is used for:
Obtain function in the position when not inquiring the on-position that fixedly accesses terminal, the domain-name information that carries in the PANI territory of comparison emergency call request and from the levels of precision of the on-position that fixedly accesses terminal that HSS obtains according to the source address information that fixedly accesses terminal; And the domain-name information that levels of precision is higher or the on-position that fixedly accesses terminal send to the position and obtain function; Obtain the response of function according to the position and obtain the corresponding urgent call routing iinformation that fixedly accesses terminal.In addition, when the session that fixedly accesses terminal is initiated, obtain the accessing position information that fixedly accesses terminal from HSS by Cx interface.
Embodiments of the invention also provide a kind of IMS network access equipment, as shown in Figure 7, comprising:
Emergency call request receiving element 21 is used to receive the emergency call request that fixedly accesses terminal and send;
Emergency call request processing unit 22, the emergency call request that is used for emergency call request receiving element 21 is received sends to the urgent call treatment facility, and the source address information that fixedly accesses terminal of carrying in emergency call request.
This emergency call request processing unit 22 specifically is used for:
The emergency call request that emergency call request receiving element 21 receives is carried out verification, when not comprising the source address information that fixedly accesses terminal and/or domain-name information in the access network of the emergency call request sign PANI territory, source address information that completion fixedly accesses terminal in the PANI territory of emergency call request and domain-name information also send to the urgent call treatment facility.
This IMS network access equipment can also comprise:
Emergency call request verification unit 23 is used to judge whether send fixedly accessing terminal of emergency call request registers; Then notify emergency call request processing unit 22 to handle when registering when fixedly accessing terminal; Otherwise judging whether can be for unregistered fixedly accessing terminal provides urgent call, if judged result is for being then to notify emergency call request processing unit 22 to handle, and the initiation register flow path otherwise triggering fixedly accesses terminal.
This IMS network access equipment can be SBC or P-CSCF.In addition, according to the difference that network design is realized, SBC and P-CSCF also may close establish with the same network equipment on.
Embodiments of the invention also provide a kind of position to obtain function device, as shown in Figure 8, comprising:
The source address information that fixedly accesses terminal that provides according to the urgent call treatment facility is provided query unit 32, fixedly the access terminal urgent call routing iinformation of correspondence of inquiry.
The position obtains and preserves following corresponding relation in the query unit 32 of function device: the corresponding relation of (1) source address information and on-position, so that inquire about the source address information that fixedly accesses terminal according to the source address information that fixedly accesses terminal; (2) corresponding relation of on-position and called urgent call routing iinformation is so that when the positional information that fixedly accesses terminal can be discerned, inquiry obtained corresponding urgent call routing iinformation; (3) corresponding relation of domain name and urgent call routing iinformation is so that when user's accessing position information can not be discerned, obtain corresponding urgent call routing iinformation by inquiry of the domain name.
This position obtains function device can be LRF, provides the corresponding urgent call routing iinformation that fixedly accesses terminal (the SIP URI and the TEL URI at urgent center) to urgent call treatment facility (as E-CSCF).The position obtains function device and can be provided with separately, also can close with the urgent call treatment facility and establish, and establishes if close, and then needs customer position information and routing iinformation are configured in the urgent call treatment facility.
The method that the application of the invention provides, system and equipment when Virtual network operator does not possess the storage resources of connection session position and memory function, have been realized the urgent call that fixedly accesses terminal.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, unit in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the unit in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.A unit can be merged in the unit of the foregoing description, also can further split into a plurality of subelements.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
Claims (16)
1. the implementation method of a urgent call is characterized in that, comprising:
The urgent call treatment facility receives the emergency call request from IP multimedia system IMS network access equipment, obtains the source address information that fixedly accesses terminal of carrying in the described emergency call request;
The described source address information that fixedly accesses terminal of described urgent call treatment facility inquiry is obtained the described corresponding urgent call routing iinformation that fixedly accesses terminal;
Described urgent call treatment facility is added on described urgent call routing iinformation in the described emergency call request and sends to the IMS network, makes described emergency call request be routed to EC.
2. the method for claim 1 is characterized in that, before the emergency call request of described urgent call treatment facility reception from IP multimedia system IMS network access equipment, also comprises:
The IMS network access equipment receives the emergency call request that fixedly accesses terminal and send;
Described IMS network access equipment carries out verification to described emergency call request, when not comprising described source address information that fixedly accesses terminal and/or domain-name information in the access network sign PANI territory of described emergency call request, described source address information that fixedly accesses terminal of completion and IMS entrance domain-name information in the PANI territory of described emergency call request;
Described IMS network access equipment is sent in the emergency call request of carrying described source address information that fixedly accesses terminal and IMS entrance domain-name information in the PANI territory to the urgent call treatment facility.
3. the method for claim 1 is characterized in that, described IMS network access equipment also comprises after receiving the emergency call request that sends that fixedly accesses terminal:
Described IMS network access equipment judges whether send fixedly accessing terminal of described emergency call request registers;
When described fixedly accessing terminal then continued when having registered; Otherwise judging whether can be for unregistered fixedly accessing terminal provides urgent call, if judged result is for being then to continue, otherwise requires described fixedly accessing terminal to initiate register flow path or refuse calling.
4. method as claimed in claim 1 or 2 is characterized in that, the described source address information that fixedly accesses terminal of described urgent call treatment facility inquiry is obtained the described corresponding urgent call routing iinformation that fixedly accesses terminal, and comprising:
Described urgent call treatment facility sends to the position with the described source address information that fixedly accesses terminal and obtains function;
Described position obtains function according to the source address information that fixedly accesses terminal, and in source address information that fixedly accesses terminal that sets in advance and on-position corresponding relation, inquires about the described on-position that fixedly accesses terminal; When inquiring the described on-position that fixedly accesses terminal, further in on-position that sets in advance and emergency numbers routing iinformation corresponding relation, inquire the urgent call routing iinformation of described on-position correspondence and send;
Described urgent call treatment facility obtains the described corresponding urgent call routing iinformation that fixedly accesses terminal according to the response that described position obtains function.
5. method as claimed in claim 4 is characterized in that, also comprises:
Described position obtains function when not inquiring the described on-position that fixedly accesses terminal according to the source address information that fixedly accesses terminal, notifies described urgent call treatment facility;
The levels of precision of the on-position of IMS entrance domain-name information that carries in the PANI territory of the more described emergency call request of described urgent call treatment facility and the described signatory ownership that fixedly accesses terminal obtained from home signature user server HSS; And the IMS entrance domain-name information that levels of precision is higher or the described on-position that fixedly accesses terminal send to described position and obtain function;
Described position obtains function further in on-position that sets in advance and emergency numbers routing iinformation corresponding relation or in domain name and the emergency numbers routing iinformation corresponding relation, inquires the urgent call routing iinformation of described on-position correspondence and sends;
Described urgent call treatment facility obtains the described corresponding urgent call routing iinformation that fixedly accesses terminal according to the response that described position obtains function.
6. method as claimed in claim 5 is characterized in that, described urgent call treatment facility comprises from the on-position that HSS obtains the described signatory ownership that fixedly accesses terminal:
When described urgent call treatment facility is initiated in the described session that fixedly accesses terminal, obtain the accessing position information of the described signatory ownership that fixedly accesses terminal from HSS by Cx interface.
7. the realization system of a urgent call is characterized in that, comprising:
The IMS network access equipment is used for sending emergency call request, the source address information that fixedly accesses terminal of carrying in the described emergency call request to the urgent call treatment facility;
The urgent call treatment facility is used for obtaining the source address information that fixedly accesses terminal that emergency call request that described IMS network access equipment sends is carried; Inquire about the described source address information that fixedly accesses terminal, obtain the described corresponding urgent call routing iinformation and be added on described urgent call routing iinformation in the described emergency call request and send to the IMS network of fixedly accessing terminal, make described emergency call request be routed to EC;
The position obtains function device, and the source address information that fixedly accesses terminal that provides according to described urgent call treatment facility is provided, the inquiry urgent call routing iinformation of correspondence that fixedly accesses terminal, and offer described urgent call treatment facility.
8. a network equipment is characterized in that, comprising:
Communication unit is used to receive the emergency call request from the IMS network access equipment;
Address acquisition unit is used for obtaining the source address information that fixedly accesses terminal that emergency call request that described communication unit receives is carried;
The routing iinformation acquiring unit is used for obtaining the source address information that fixedly accesses terminal that the described address acquisition unit of functional inquiry is obtained to the position of network, obtains the described corresponding urgent call routing iinformation that fixedly accesses terminal;
The routing iinformation adding device, be used for the urgent call routing iinformation that described routing iinformation acquiring unit obtains is added on described emergency call request, and send to the IMS network by described communication unit, make described emergency call request be routed to EC.
9. the network equipment as claimed in claim 8 is characterized in that, described routing iinformation acquiring unit also is used for:
Obtain function in described position when not inquiring the described on-position that fixedly accesses terminal according to the source address information that fixedly accesses terminal, the levels of precision of the on-position of IMS entrance domain-name information that carries in the PANI territory of more described emergency call request and the described signatory ownership that fixedly accesses terminal obtained from HSS; And the IMS entrance domain-name information that levels of precision is higher or the described on-position that fixedly accesses terminal send to described position and obtain function; Obtain the response of function according to described position and obtain the described corresponding urgent call routing iinformation that fixedly accesses terminal.
10. the network equipment as claimed in claim 9 is characterized in that, described routing iinformation acquiring unit also is used for, and when the described session that fixedly accesses terminal is initiated, obtains the accessing position information of the described signatory ownership that fixedly accesses terminal from HSS by Cx interface.
11. an IMS network access equipment is characterized in that, comprising:
The emergency call request receiving element is used to receive the emergency call request that fixedly accesses terminal and send;
The emergency call request processing unit, the emergency call request that is used for described emergency call request receiving element is received sends to the urgent call treatment facility, and the source address information that fixedly accesses terminal of carrying in described emergency call request.
12. equipment as claimed in claim 11 is characterized in that, described emergency call request processing unit specifically is used for:
The emergency call request that the emergency call request receiving element receives is carried out verification, when not comprising described source address information that fixedly accesses terminal and/or IMS entrance domain-name information in the access network of the described emergency call request sign PANI territory, described source address information that fixedly accesses terminal of completion and IMS entrance domain-name information and send in the PANI territory of described emergency call request to the urgent call treatment facility.
13. equipment as claimed in claim 11 is characterized in that, also comprises:
The emergency call request verification unit is used to judge whether send fixedly accessing terminal of described emergency call request registers; When described fixedly accessing terminal then notifies described emergency call request processing unit to handle when having registered; Otherwise judging whether can be for unregistered fixedly accessing terminal provides urgent call, if judged result is for being then to notify described emergency call request processing unit to handle, otherwise requires described fixedly accessing terminal to initiate register flow path or refuse calling.
14., it is characterized in that described IMS network access equipment is Session Border Controller SBC or Proxy Call Session Control Function P-CSCF as each described equipment in the claim 11 to 13.
15. a position obtains function device, it is characterized in that, comprising:
Communication unit is used to receive the source address information that fixedly accesses terminal that the urgent call treatment facility provides, and sends the described corresponding urgent call routing iinformation that fixedly accesses terminal to described urgent call treatment facility;
The source address information that fixedly accesses terminal that provides according to described urgent call treatment facility is provided query unit, fixedly the access terminal urgent call routing iinformation of correspondence of inquiry.
16. equipment as claimed in claim 15 is characterized in that,
Described communication unit also is used for: when described query unit does not inquire the described on-position that fixedly accesses terminal according to the source address information that fixedly accesses terminal, notify described urgent call treatment facility;
Described query unit, the IMS entrance domain-name information or the described on-position that fixedly accesses terminal that provide according to described urgent call treatment facility also is provided, in on-position that sets in advance and emergency numbers routing iinformation corresponding relation or in domain name and the emergency numbers routing iinformation corresponding relation, inquire the urgent call routing iinformation of described on-position correspondence.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102377618A CN102065068A (en) | 2009-11-18 | 2009-11-18 | Implementation method, system and equipment for emergency call |
| PCT/CN2010/078811 WO2011060715A1 (en) | 2009-11-18 | 2010-11-17 | Method for implementing emergency call, system and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102377618A CN102065068A (en) | 2009-11-18 | 2009-11-18 | Implementation method, system and equipment for emergency call |
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| Publication Number | Publication Date |
|---|---|
| CN102065068A true CN102065068A (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102377618A Pending CN102065068A (en) | 2009-11-18 | 2009-11-18 | Implementation method, system and equipment for emergency call |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102065068A (en) |
| WO (1) | WO2011060715A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102511172A (en) * | 2011-12-05 | 2012-06-20 | 华为技术有限公司 | Method and device for urgently calling and transmitting user location information to CS network in IMS network |
| CN104917717A (en) * | 2014-03-10 | 2015-09-16 | 中国移动通信集团北京有限公司 | Calling method, equipment and system |
| CN104955009A (en) * | 2014-03-26 | 2015-09-30 | 阿尔卡特朗讯 | Emergency calling system and emergency calling method |
| CN109981524A (en) * | 2017-12-27 | 2019-07-05 | 中国移动通信集团河北有限公司 | Subscriber Number zoned access method, apparatus, equipment and medium |
| CN112190240A (en) * | 2020-09-21 | 2021-01-08 | 四川大学华西医院 | Old people health monitoring and alarming device and method based on Internet of things |
| TWI801009B (en) * | 2021-11-29 | 2023-05-01 | 財團法人工業技術研究院 | Method for assisting unregistered user device to access end-to-end call service of private network and communication system |
| TWI802114B (en) * | 2021-11-29 | 2023-05-11 | 財團法人工業技術研究院 | Method for assisting unregistered user device to access private network service and communication system |
| US11876866B2 (en) | 2021-11-29 | 2024-01-16 | Industrial Technology Research Institute | Method for assisting unregistered user device to access end-to-end call service of private network and communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103391378B (en) * | 2012-05-07 | 2015-12-02 | 华为技术有限公司 | A kind of Voice over IP method of calling, Apparatus and system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1997083B (en) * | 2006-12-30 | 2012-06-27 | 华为技术有限公司 | Network system and selection method of call route |
| CN101448232B (en) * | 2008-04-30 | 2013-05-08 | 中兴通讯股份有限公司 | Method for realizing emergency call, and system and user equipment thereof |
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2009
- 2009-11-18 CN CN2009102377618A patent/CN102065068A/en active Pending
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2010
- 2010-11-17 WO PCT/CN2010/078811 patent/WO2011060715A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102511172A (en) * | 2011-12-05 | 2012-06-20 | 华为技术有限公司 | Method and device for urgently calling and transmitting user location information to CS network in IMS network |
| WO2013082744A1 (en) * | 2011-12-05 | 2013-06-13 | 华为技术有限公司 | Method and device for transmitting emergency call user location information to circuit switched network in ip multimedia subsystem network |
| CN104917717A (en) * | 2014-03-10 | 2015-09-16 | 中国移动通信集团北京有限公司 | Calling method, equipment and system |
| CN104917717B (en) * | 2014-03-10 | 2018-09-07 | 中国移动通信集团北京有限公司 | A kind of method of calling, equipment and system |
| CN104955009A (en) * | 2014-03-26 | 2015-09-30 | 阿尔卡特朗讯 | Emergency calling system and emergency calling method |
| CN109981524A (en) * | 2017-12-27 | 2019-07-05 | 中国移动通信集团河北有限公司 | Subscriber Number zoned access method, apparatus, equipment and medium |
| CN109981524B (en) * | 2017-12-27 | 2021-06-04 | 中国移动通信集团河北有限公司 | User number partition access method, device, equipment and medium |
| CN112190240A (en) * | 2020-09-21 | 2021-01-08 | 四川大学华西医院 | Old people health monitoring and alarming device and method based on Internet of things |
| TWI801009B (en) * | 2021-11-29 | 2023-05-01 | 財團法人工業技術研究院 | Method for assisting unregistered user device to access end-to-end call service of private network and communication system |
| TWI802114B (en) * | 2021-11-29 | 2023-05-11 | 財團法人工業技術研究院 | Method for assisting unregistered user device to access private network service and communication system |
| US11876866B2 (en) | 2021-11-29 | 2024-01-16 | Industrial Technology Research Institute | Method for assisting unregistered user device to access end-to-end call service of private network and communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011060715A1 (en) | 2011-05-26 |
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Application publication date: 20110518 |