CN101841790B - Address allocating method and device for emergency call - Google Patents
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Abstract
The invention provides an address allocating method for an emergency call. The method comprises the following steps that: a mobile management entity MME receives an instruction transmitted by user equipment UE as an emergency attach request or packet data network PDN connection request, wherein the attach request or PDN connection request carries the PDN type of the UE request; the MME sets the PDN type corresponding to the UE according to the PDN type of the UE request and the emergency configuration data information stored by the MME; and an emergency PDN gateway allocates the address for the UE according to the PDN type set by the MME. The invention provides the method and a device for allocating the IP address for the UE during the emergency call; and meanwhile, after the UE in the invention is attached to the network in emergency, the UE does not transmit any new PDN connection so as to meet the requirement specified by the protocol.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of address distribution method and device for urgent call.
Background technology
UE (User Equipment, subscriber equipment) to MME (mobility management entity, Mobility Management Entity) sends Attach request (adhering to request) message and PDN (PacketData Network, Packet Data Network) carried PDN type (PDN type) parameter in CONNECTION REQUEST (PDN connection request) message, at SAE (System ArchitectureEvolution, the system architecture evolution) supports three kinds of PDN type: IPv4, IPv6 and IPv4v6 in the system.Wherein, IPv4v6 represents that EPS (Evolved Packet System, evolved packet system) carrying can be only related with an IPV6 address/prefix, also can be related with an IPV6 address/prefix with an IPV4 address; The EPS carrying of IPv4 is only related with an IPV4 address; The EPS carrying of IPv6 is only related with an IPv6 address.And, only under following situation, just use the PDN type of IPv4 and IPv6:
1, UE or PDN GW only support IPV4 address and IPV6 address/prefix;
2, operator specifies and uses single IP address;
3, for certain APN, user contracting data indicates and only uses IPv4 or IPv6 address;
4, with the earlier version intercommunication time, use.
In the SAE system, connecting to set up at attach or PDN needs to be UE distributing IP address in the process, MME and PDN GW (PDN Gateway) can be UE distributing IP address according to the signatory restriction of UE its own IP address tenability and UE and the factors such as configuration of operator.UE is in the attach process or set up in the PDN connection procedure, and the PDN type of UE request can be set based on the configuration of its IP stack.HSS (Home Subscriber Server, home subscriber server) has the PDN type of APN in the subscription data of Bao Cuning, in the PDN connection procedure of attach process or UE request, MME will comparison of request the PDN type and subscription data in the PDN type set for a certain APN, thereby according to signing type the PDN type is set.Wherein, how how MME has been that known technology is not described in detail at this according to the signatory restriction of UE its own IP address tenability and UE and the factors such as configuration of operator.
Yet, when UE carries out may entering into limited service mode (restriction service mode) state when the residential quarter is selected, limit service mode and refer to that UE can only allow to initiate emergency call (urgent call).When UE can not find that a suitable residential quarter is resident, perhaps do not insert SIM card, when perhaps UE had received the response (as illegal UE) of some position registration, UE was with resident residential quarter to the restriction service mode.When UE is in restriction service mode and UE and attempts to set up emergency session (emergent session), UE will initiate emergency attach (emergency attached) process.Under other situations, UE will initiate normal attach process.If the normal attach of UE is in network, the PDN that when UE wants to initiate emergency session initiation is designated as the emergency type connects the process of setting up.
The shortcoming that prior art exists is: how not to be the correlation technique of UE distributing IP address in the prior art in emergency session process, and to set up process different because the PDN of restriction under the service mode connects under the process of setting up and the unrestricted service mode PDN connection, therefore the distribution of IP address and can't be directly applied for IP address assignment in the emergency session process under the above-mentioned unrestricted service mode, for example, according to existing protocol, when being IPv4v6, the PDN of UE type setting up the other PDN connection procedure that also might initiate after PDN is connected with this APN with an APN, and for the UE that is under the operation of restriction service mode, in case be connected in the network by emergency attach process, UE can not ask to set up any other PDN and connect.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, particularly solves the defective of the distribution correlation technique of IP address when not having urgent call in the prior art.
For achieving the above object, one aspect of the present invention proposes a kind of address distribution method for urgent call, may further comprise the steps: Mobility Management Entity MME receives that user equipment (UE) sends is designated as urgent request or the PDN connection request of adhering to, and wherein saidly adheres to the PDN type that request or PDN connection request carry described UE request; The urgent configuration data information that described MME preserves according to PDN type and the described MME of described UE request arranges the PDN type of described UE correspondence, and the PDN type that urgent PDN Gateway arranges according to described MME is that described UE distributes the address.
As one embodiment of the present of invention, the urgent configuration data information that described MME preserves according to PDN type and the MME of UE request arranges the PDN type of described UE correspondence, the PDN type that urgent PDN Gateway arranges according to described MME is that described UE distributes the address to comprise: if the PDN type of described UE request is IPv4v6, and the urgent configuration data information that described MME preserves is different with the PDN type of described UE request, then described MME is made as the urgent configuration data information of preservation with the PDN type, and described urgent PDN Gateway is that described UE distributes the address according to the urgent configuration data information of described preservation.
As one embodiment of the present of invention, if the urgent configuration data information that described MME preserves allows the PDN type of described UE request, then described MME is made as the PDN type that described UE asks with the PDN type, and described urgent PDN Gateway is that described UE distributes the address according to the PDN type of described UE request.
As one embodiment of the present of invention, if the urgent configuration data information that described MME preserves does not allow the PDN type of described UE request, and the PDN type of described UE request be IPv4v6, and then described described adhering to of MME refusal asks or the PDN connection request.
As one embodiment of the present of invention, if the PDN type of described UE request is IPv4v6, be that also comprise: described UE checked the current pattern that resides in the residential quarter after receiving addresses distributed after described UE distributed the address in the PDN type that described urgent PDN Gateway is asked according to described UE then; The uniform affair pattern if described UE this moment is limited, then described UE no longer initiates any new PDN connection and sets up request.
As one embodiment of the present of invention, also comprise: described MME returns NAS (Non-Access-Stratum, Non-Access Stratum) message to described UE, and described NAS message is designated as described UE addresses distributed type.
As one embodiment of the present of invention, if the PDN type of described UE request is IPv4v6, and the urgent configuration data information that described MME preserves is different with the PDN type of described UE request, and then described NAS message also carries the cause that the described MME of explanation is the reason of described UE selection PDN type.
As one embodiment of the present of invention, also comprise: described UE checks the current pattern that resides in the residential quarter; The uniform affair pattern if described UE this moment is limited, then described UE no longer initiates any new PDN connection and sets up request.
The present invention also proposes a kind of MME on the other hand, comprise that receiver module, urgent configuration data information preservation module and PDN type arrange module, described receiver module, what be used for to receive that UE sends is designated as urgent request or the PDN connection request of adhering to, and wherein saidly adheres to the PDN type that request or PDN connection request carry described UE request; Described urgent configuration data information is preserved module, is used for preserving urgent configuration data information; Described PDN type arranges module, is used for the PDN type that urgent configuration data information that PDN type and described MME according to described UE request preserve arranges described UE correspondence, and the PDN type that urgent PDN Gateway arranges according to described MME is that described UE distributes the address.
As one embodiment of the present of invention, if described urgent configuration data information is preserved the PDN type that the urgent configuration data information of module preservation allows described UE request, then described PDN type arranges module the PDN type is made as the PDN type that described UE asks, and described urgent PDN Gateway is that described UE distributes the address according to the PDN type of described UE request.
As one embodiment of the present of invention, if the PDN type of described UE request is IPv4v6, and the urgent configuration data information that described urgent configuration data information is preserved the module preservation is different with the PDN type of described UE request, then described PDN type arranges module the PDN type is made as the urgent configuration data information of preservation, and described urgent PDN Gateway is that described UE distributes the address according to the urgent configuration data information of described preservation.
As one embodiment of the present of invention, comprise that also NAS message returns module, be used for returning NAS message to described UE, described NAS message is designated as described UE addresses distributed type.
Further aspect of the present invention also proposes a kind of UE, comprises receiver module, judge module and control module, described receiver module, and what be used for to receive that MME sends is used to indicate NAS message for described UE addresses distributed type; Described judge module is used for after described receiver module receives described NAS message, checks the current pattern that resides in the residential quarter during for IPv4v6 in the PDN type of described UE request; Described control module is used for when described judge module judges that this moment, described UE was limited uniform affair pattern, controls described UE and no longer initiates any new PDN and connect the request of foundation.
Be the method and apparatus of UE distributing IP address when the present invention proposes urgent call, simultaneously, UE no longer sends any new PDN at emergency attach UE behind the network and connects in the present invention, thus the requirement of protocol compliant regulation.
The aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or the additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is used for the flow chart of the address distribution method of urgent call for the embodiment of the invention;
Fig. 2 is the MME structure chart of the embodiment of the invention;
Fig. 3 is the structure chart of embodiment of the invention UE.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
Because network is based on local configuration for the support of emergency session, the PDN connection of the emergency session that UE sets up is to set up according to the configuration information of preserving among the MME, and it is irrelevant with CAMEL-Subscription-Information, therefore MME utilizes the PDN type of UE request and the urgent configuration data information of MME preservation that the PDN type of UE correspondence is set in the present invention, thereby is provided for address distribution method and the related device of urgent call.And in each embodiment of the present invention, UE no longer sends any new PDN connection at emergency attach behind network, thereby the requirement of protocol compliant regulation.
As shown in Figure 1, be the flow chart of the embodiment of the invention for the address distribution method of urgent call, may further comprise the steps:
Step S101, MME receives the PDN connection request of asking or being designated as urgent (emergency) that adheres to that is designated as urgent (emergency) that UE sends, and wherein, adheres to the PDN type that request or PDN connection request carry the UE request, as IPv4, IPv6 or IPv4v6.
Step S102, the urgent configuration data information that MME preserves according to PDN type and the MME of UE request arranges the PDN type of UE correspondence, and the PDN type that urgent PDN Gateway arranges according to MME is that UE distributes the address.
If the urgent configuration data information that MME preserves allows the PDN type of UE request, then MME is made as the PDN type that UE asks with the PDN type, and urgent PDN Gateway is that UE distributes the address according to the PDN type of UE request.For example the PDN type of UE request is IPv4, and the urgent configuration data information of MME preservation simultaneously also comprises IPv4, and then this moment, MME was made as IPv4 with the PDN type.In one embodiment of the invention, UE checks the current pattern that resides in the residential quarter after receiving addresses distributed, the uniform affair pattern if UE this moment is limited, then UE no longer initiates any new PDN connection and sets up request, till UE moves to a normal resident suitable cell.
If the PDN type of UE request is IPv4v6, and the urgent configuration data information that MME preserves different with the PDN type that UE asks (the urgent configuration data information of preserving as MME is IPv4 or IPv6), then MME is made as the urgent configuration data information (IPv4 or IPv6) of preservation with the PDN type, and urgent PDN Gateway is that UE distributes the address according to the urgent configuration data information of preserving.For example, the PDN type of UE request is IPv4v6, and the urgent configuration data information that MME preserves does not comprise IPv4v6, but comprises IPv4, and then this moment, MME was made as IPv4 with the PDN type.
In one embodiment of the invention, MME also needs to return NAS message to UE, and this NAS message is designated as UE addresses distributed type, for example IPv4.In addition, if the PDN type of UE request is IPv4v6, and the urgent configuration data information that MME preserves is different with the PDN type of UE request, then above-mentioned NAS message can also carry the cause that indication MME only supports a kind of address style, for example, " PDN type IPv4 only allowed ", " PDN type IPv6 only allowed " and " single address bearers only allowed " etc., wherein, the other PDN that " single address bearersonly allowed " expression UE can also initiate this APN connects, and other two kinds of cause represent that UE can not initiate the PDN connection of this APN, but can initiate the connection of other APN.UE checks the current pattern that resides in the residential quarter after receiving above-mentioned three kinds of cause, the uniform affair pattern if UE this moment is limited, and then UE no longer initiates any new PDN connection and sets up request, till UE moves to a normal resident suitable cell.
If the urgent configuration data information that MME preserves does not allow the PDN type of UE request, and the PDN type of UE request be IPv4v6, and then the MME refusal adheres to and asks or the PDN connection request.For example the PDN type of UE request is IPv4, and the urgent configuration data information that MME preserves does not comprise IPv4, but IPv6, then the MME refusal adheres to request or PDN connection request.
As shown in Figure 2, be the MME structure chart of the embodiment of the invention, this MME 100 comprises receiver module 110, urgent configuration data information preserves module 120 and the PDN type arranges module 130.Receiver module 110 is used for receiving urgent the adhering to of being designated as of UE transmission asks or the PDN connection request, wherein adheres to the PDN type that request or PDN connection request carry described UE request.Urgent configuration data information is preserved module 120 and is used for preserving urgent configuration data information.The PDN type arranges module 130 and is used for the PDN type that urgent configuration data information that PDN type and MME according to the UE request preserve arranges the UE correspondence, and the PDN type that urgent PDN Gateway arranges according to MME is that UE distributes the address.
As one embodiment of the present of invention, if urgent configuration data information is preserved the PDN type that the urgent configuration data information of module 120 preservations allows the UE request, then the PDN type arranges module 130 the PDN type is made as the PDN type that UE asks, and urgent PDN Gateway is that described UE distributes the address according to the PDN type of UE request.
As one embodiment of the present of invention, if the PDN type of UE request is IPv4v6, and urgent configuration data information is preserved the urgent configuration data information different with the PDN type that UE asks (the urgent configuration data information of preserving as MME is IPv4 or IPv6) that module 120 is preserved, then the PDN type arranges the urgent configuration data information that module 130 PDN types are set to preserve, and urgent PDN Gateway is that UE distributes the address according to the urgent configuration data information of preserving.
As one embodiment of the present of invention, MME 100 comprises that also NAS message returns module 140, is used for returning NAS message to UE, and this NAS message is designated as UE addresses distributed type.
As shown in Figure 3, be the structure chart of embodiment of the invention UE, this UE200 comprises receiver module 210, judge module 220 and control module 230.Receiver module 210 is used for receiving that MME sends is used to indicate NAS message for UE200 addresses distributed type.Judge module 220 is used for after receiver module 210 receives NAS message, checks the current pattern that resides in the residential quarter during for IPv4v6 in the PDN type of UE200 request.Control module is used for when judge module 220 judges that this moment, UE200 was limited uniform affair pattern, and control UE200 no longer initiates any new PDN and connects the request of foundation.
Be the method and apparatus of UE distributing IP address when the present invention proposes urgent call, simultaneously, UE no longer sends any new PDN at emergency attach UE behind the network and connects in the present invention, thus the requirement of protocol compliant regulation.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment that scope of the present invention is by claims and be equal to and limit.
Claims (7)
1. an address distribution method that is used for urgent call is characterized in that, may further comprise the steps:
Mobility Management Entity MME receives that user equipment (UE) sends is designated as urgent request or the grouped data network PDN connection request of adhering to, and wherein saidly adheres to the PDN type that request or PDN connection request carry described UE request;
The urgent configuration data information that described MME preserves according to PDN type and the described MME of described UE request arranges the PDN type of described UE correspondence, and the PDN type that urgent PDN Gateway arranges according to described MME is that described UE distributes the address,
Wherein, the urgent configuration data information that described MME preserves according to PDN type and the described MME of UE request arranges the PDN type of described UE correspondence, and the PDN type that urgent PDN Gateway arranges according to described MME is that described UE distributes the address to comprise:
If the PDN type of described UE request is IPv4v6, and the urgent configuration data information that described MME preserves is different with the PDN type of described UE request, then described MME is made as the urgent configuration data information of preservation with the PDN type, and described urgent PDN Gateway is that described UE distributes the address according to the urgent configuration data information of described preservation;
If the urgent configuration data information that described MME preserves allows the PDN type of described UE request, then described MME is made as the PDN type that described UE asks with the PDN type, and described urgent PDN Gateway is that described UE distributes the address according to the PDN of described UE request; Perhaps
If the urgent configuration data information that described MME preserves does not allow the PDN type of described UE request, and the PDN type of described UE request be IPv4v6, and then described described adhering to of MME refusal asks or the PDN connection request.
2. the address distribution method for urgent call as claimed in claim 1, it is characterized in that, if the PDN type of described UE request is IPv4v6, be after described UE distributes the address, also to comprise in the PDN type that described urgent PDN Gateway is asked according to described UE then:
Described UE checks the current pattern that resides in the residential quarter after receiving addresses distributed;
The uniform affair pattern if described UE this moment is limited, then described UE no longer initiates any new PDN connection and sets up request.
3. the address distribution method for urgent call as claimed in claim 1 is characterized in that, also comprises:
Described MME returns non access stratum NAS message to described UE, and described NAS message is designated as described UE addresses distributed type.
4. the address distribution method for urgent call as claimed in claim 3, it is characterized in that, if the PDN type of described UE request is IPv4v6, and the urgent configuration data information that described MME preserves is different with the PDN type of described UE request, and then described NAS message also carries the reason that the described MME of explanation is described UE selection PDN type.
5. the address distribution method for urgent call as claimed in claim 4 is characterized in that, UE also comprises after receiving described reason:
Described UE checks the current pattern that resides in the residential quarter;
The uniform affair pattern if described UE this moment is limited, then described UE no longer initiates any new PDN connection and sets up request.
6. a Mobility Management Entity MME is characterized in that, comprises that receiver module, urgent configuration data information preservation module and PDN type arrange module,
Described receiver module, what be used for to receive that user equipment (UE) sends is designated as urgent request or the grouped data network PDN connection request of adhering to, and wherein saidly adheres to the PDN type that request or PDN connection request carry described UE request;
Described urgent configuration data information is preserved module, is used for preserving urgent configuration data information;
Described PDN type arranges module, is used for the PDN type that urgent configuration data information that PDN type and described MME according to described UE request preserve arranges described UE correspondence, and the PDN type that urgent PDN Gateway arranges according to described MME is that described UE distributes the address,
If the PDN type of described UE request is IPv4v6, and the urgent configuration data information that described urgent configuration data information is preserved the module preservation is different with the PDN type of described UE request, then described PDN type arranges module the PDN type is made as the urgent configuration data information of preservation, and described urgent PDN Gateway is that described UE distributes the address according to the urgent configuration data information of described preservation;
If the urgent configuration data information that described MME preserves allows the PDN type of described UE request, then described MME is made as the PDN type that described UE asks with the PDN type, and described urgent PDN Gateway is that described UE distributes the address according to the PDN of described UE request; Perhaps
If the urgent configuration data information that described MME preserves does not allow the PDN type of described UE request, and the PDN type of described UE request be IPv4v6, and then described described adhering to of MME refusal asks or the PDN connection request.
7. MME as claimed in claim 6 is characterized in that, comprises that also NAS message returns module, is used for returning NAS message to described UE, and described NAS message is designated as described UE addresses distributed type.
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| CN103581862A (en) * | 2012-07-20 | 2014-02-12 | 电信科学技术研究院 | Achieving method and device of emergency service |
| RU2676533C1 (en) * | 2015-07-14 | 2019-01-09 | Хуавэй Текнолоджиз Ко., Лтд. | Method and device of assigning the ip address |
| CN106413122B (en) * | 2015-08-03 | 2020-03-06 | 电信科学技术研究院 | Method and equipment for establishing emergency PDN connection |
| CN106231580A (en) * | 2016-09-08 | 2016-12-14 | 北京小米移动软件有限公司 | Network attached method and device |
| CN114553831B (en) * | 2020-11-25 | 2023-09-08 | 华为技术有限公司 | Method and system related to sending management IP address |
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| EP1839420A1 (en) * | 2005-01-19 | 2007-10-03 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | A method and apparatus for handling emergency calls |
| CN101237334A (en) * | 2007-01-31 | 2008-08-06 | 华为技术有限公司 | Microwave access global intercommunication system and method and device for providing emergent service |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1839420A1 (en) * | 2005-01-19 | 2007-10-03 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | A method and apparatus for handling emergency calls |
| CN101237334A (en) * | 2007-01-31 | 2008-08-06 | 华为技术有限公司 | Microwave access global intercommunication system and method and device for providing emergent service |
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210617 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |