CN103079179A - Message transmission method and device - Google Patents
Message transmission method and device Download PDFInfo
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- CN103079179A CN103079179A CN2012105843315A CN201210584331A CN103079179A CN 103079179 A CN103079179 A CN 103079179A CN 2012105843315 A CN2012105843315 A CN 2012105843315A CN 201210584331 A CN201210584331 A CN 201210584331A CN 103079179 A CN103079179 A CN 103079179A
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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
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/005—Transmission of information for alerting of incoming communication
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Abstract
The invention relates to a message transmission method which comprises the following steps that an unstructured supplementary service data (USSD) notice message which is sent by a home location register (HLR) is received, wherein the USSD notice message contains the identifier of a terminal which resides in a long term evolution (LTE) network; the USSD notice message is converted into one or more short message service (SMS) messages; a paging message is sent to the terminal according to the identifier of the terminal; and after a paging response message which is sent by the terminal is received, the one or more SMS messages are sent to the terminal through a space gateway support (SGs) interface. Correspondingly, the invention provides a message transmission device which solves the problems that the terminal resides in the LTE network scene, and messages are transmitted through a USSD business mode frequently, so that circuit switched fallback (CSFB) occurs frequently, so that the time delay when the terminal returns and the time delay for the terminal to return to the LTE network, and the waste of air interface resources is reduced.
Description
Technical field
The embodiment of the invention relates to the communications field, relates in particular to a kind of method and device of message transfer.
Background technology
Non-structural supplementary data (Unstructured Supplementary Service Data, USSD) business is a kind of interactive sessions data service based on global system for mobile communications GSM (Global System for MobileCommunications) network, real-time online; It utilizes the signalling path of GSM network to transmit data based on subscriber identification module (Subscriber Identity Module, SIM) card, is the business of releasing in the short-message system technical foundation of GSM.
The USSD business can use separately or with GPRS (General Packet RadioService, GPRS) the technology use that combines, can be the client miscellaneous value-added service is provided, such as mobile banking, money stock transaction, mobile phone charge inquiry, weather information forecast and inquiry, E-mail receiver/send, flight inquiring, booking tickets on net, poll etc.Adopt USSD less to the structure influence of existing communication system, and operator can also release function service neatly for the concrete condition of local network, provide Various types of data professional for the mobile subscriber easily.Therefore, the mode that spreads news based on the USSD business has obtained increasing application.
Because present USSD business is based on the GSM network and initiates, at long evolving system (LongTerm Evolution, LTE) but there is not corresponding transmission mechanism under the network, so, the USSD service needed is from universal mobile telecommunications system (the Universal Mobile Telecommunications System of evolution, UMTS) land radio access web (Evolved UMTS Territorial Radio Access Network, E-UTRAN) return GSM EDGE wireless access network (GSM EDGE Radio Access Network, GERAN)/UMTS Terrestrial radio access network (UMTS Territorial Radio Access Network, UTRAN) finish, this method is called circuit domain dropping (Circuit Switched Fallback, CSFB).In the prior art, 3GPP23.272 protocol definition terminal carry out the flow process of CSFB operation, take standard C SFB group-network construction as example, the message transfer device receives attaching position register (Home Location Register, HLR) behind the USSD request message that sends, issuing page message Paging is to Mobility Management Entity (Mobility ManagementEntity, MME), after MME receives this beep-page message, base station (Evolved NodeB by evolution, E-NodeB) notification terminal carries out circuit domain dropping, after terminal has been finished circuit domain dropping, and the message transfer device, HLR, MME and terminal are finished follow-up USSD operation flow.
When terminal resides in the LTE network, message is transmitted by the mode of USSD business, and the USSD operation flow all will trigger the CSFB operation each time, the USSD business can cause the CSFB frequent occurrence frequently, and the operation of CSFB each time all needs the regular hour, although the time of the CSFB of single operation is shorter, but the frequent occurrence of CSFB can produce larger terminal falls time delay after rise, terminal is returned time delay and packet switching (the Packet Switched of LTE network, PS) service disconnection etc., and, CSFB operation each time can take interface-free resources, after the CSFB operation is finished, discharge interface-free resources and need the regular hour, the CSFB operation can cause interface-free resources to be taken by the CSFB operation always frequently, causes interface-free resources nervous.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method and device of message transfer, solve terminal and resided in the problem that frequently causes the CSFB frequent occurrence under the LTE scene by USSD trafficwise message transfer, can reduce by USSD trafficwise message transfer and need to fall back to the number of times in CS territory, thereby reduce the time delay that causes because of CSFB, improve the stability of PS business, reduced CSFB taking interface-free resources.
First aspect, the embodiment of the invention provide a kind of method of message transfer, comprising:
The message transfer device receives the unstructured supplementary service data USSD notification message that attaching position register HLR sends, and comprises the sign of the terminal that resides in long evolving system LTE network in the described USSD notification message;
Described USSD notification message is converted to one or more short message service SMS message;
According to the sign of described terminal, send beep-page message to described terminal;
After the page-response message that receives described terminal transmission, send described SMS message by the SGs interface to described terminal.
In the possible implementation of the first of first aspect,
Comprise in the described USSD notification message for the parameter of expression USSD coded system with for the USSD character string that shows in described terminal, described one or more SMS message comprises parameter and the user data parameter of coded system,
Described described USSD notification message is decoded, and described decoded USSD notification message is converted to one or more SMS message, comprising:
Described USSD notification message is decoded, obtain described parameter and described USSD character string for expression USSD coded system;
Make up one or more SMS message, described parameter for expression USSD coded system is encapsulated into the parameter of the coded system of the SMS message of described structure;
Described USSD character string is encapsulated in the user data parameter of one or more SMS message of described structure.
Be combined in the possible implementation of the first of first aspect, in the possible implementation of the second,
Described structure one or more SMS message comprises: if described USSD string length greater than 140 bytes and be not more than 160 bytes, described message transfer device makes up two SMS message;
Described described USSD character string is encapsulated in the user data parameter of the SMS message of described structure comprises:
Described USSD character string is split as two parts USSD character string that length all is not more than 140 bytes, respectively described two parts USSD character string is encapsulated in two SMS message of described structure.
Be combined in the possible implementation of the first of first aspect, in the third possible implementation, described structure one or more SMS message comprises: if described USSD string length is not more than 140 bytes, described message transfer device makes up a SMS message.
Second aspect, the embodiment of the invention provide a kind of message transfer device, comprising:
Receiving element is used for receiving the unstructured supplementary service data USSD message that attaching position register HLR sends, and comprises the sign that resides in the terminal on the long evolving system LTE in the described USSD message;
Converting unit is used for after described receiving element receives described USSD notification message described USSD notification message being converted to one or more short message service SMS message;
Transmitting element is used for the sign according to the terminal of described receiving element reception, sends beep-page message to described terminal;
Described receiving element also is used for receiving the page-response message that described terminal sends after described transmitting element sends beep-page message;
Described transmitting element also is used for after described receiving element receives described page-response message, sends the one or more SMS message that described converting unit conversion obtains by the SGs interface to described terminal.
In the possible implementation of the first of second aspect, comprise parameter and USSD character string for expression USSD coded system in the described USSD notification message, described one or more SMS message comprises parameter and the user data parameter of coded system, and described converting unit comprises:
Acquiring unit is used for described USSD notification message is decoded, and obtains described parameter and described USSD character string for showing in described terminal for expression USSD coded system;
Encapsulation unit, be used for to make up one or more SMS message, described parameter and the described USSD character string for expression USSD coded system that described acquiring unit is obtained will described parameter for representing the USSD coded system encapsulates into the parameter of the coded system of the SMS message of described structure; Described USSD character string is encapsulated in the user data parameter of the SMS message of described structure.
Be combined in the possible implementation of the first of second aspect, in the possible implementation of the second,
Encapsulation unit makes up one or more SMS message and comprises: if described USSD string length greater than 140 bytes and be not more than 160 bytes, described encapsulation unit makes up two SMS message,
Described encapsulation unit encapsulates described USSD character string in the user data parameter of the SMS message of described structure and comprises:
Described USSD character string is split as two parts USSD character string that length all is not more than 140 bytes, respectively described two parts USSD character string is encapsulated in the user data parameter of two SMS message of described structure.
Be combined in the possible implementation of the first of second aspect, in the third possible implementation,
Described encapsulation unit makes up one or more SMS message and comprises: if described USSD string length is not more than 140 bytes, described encapsulation unit makes up a SMS message.
Method and the device of the realization message transfer that the embodiment of the invention provides, the message transfer device receives the USSD notification message that HLR sends, described USSD notification message is decoded, and should be converted to one or more short message service SMS message by decoded USSD notification message, and this SMS message is sent to described terminal.Because the message transfer device is converted into SMS message with the USSD notification message, the mode of the transmission SMS message by SMS overSGs can not cause the generation of CSFB, so the embodiment of the invention has solved terminal and has resided in the problem that frequently causes the CSFB frequent occurrence under the LTE scene by USSD trafficwise message transfer, the time delay of terminal falling and the time delay that terminal is returned the LTE network have been reduced, improve the stability of PS business, reduced the waste of interface-free resources.
Description of drawings
Fig. 1 is the Organization Chart of embodiment of the invention applied environment;
Fig. 2 is the flow chart of the embodiment of the invention 1;
Fig. 3 is the flow chart in the embodiment of the invention 2;
Fig. 4 is the installation composition figure in the embodiment of the invention 3;
Fig. 5 is the device hardware structure figure in the embodiment of the invention 3.
Embodiment
Fig. 1 is the applied environment Organization Chart of the embodiment of the invention, and as shown in Figure 1, this framework comprises Radio Access Network (Radio Access Network, RAN) and core network (Core Network, CN) two parts.CN is from being divided in logic circuit switching (Circuit Switched, CS) territory and packet switching (PacketSwitched, PS) territory.Mobile soft switch center (Mobile Soft Switch Center, MSC) be entity in the CS territory, comprise that the visited place moves soft switch center 11 (Visited MSC, VMSC) and the critical point move soft switch center 12 (Gateway MSC, GMSC), wherein, VMSC can carry out information interaction with charge system etc., and intercom mutually with home address register/home subscriber server HLR/HSS 13, finish basic calling and transmission of messages.In embodiments of the present invention, VMSC can realize the function of CSFB, or adopts special-purpose CSFB agency, and namely CSFB Proxy realizes the function of CSFB.In embodiments of the present invention, MSC (comprising VMSC and GMSC) and CSFB Proxy are defined as the message transfer device.VMSC links to each other by the SGs interface with MME, to realize interconnecting of UMTS network and LTE network.Mobile management entity MME 14, S-GW/P-GW15 are the entities in PS territory in the LTE network, in the applied environment of the embodiment of the invention, terminal resides under the LTE network, the message of USSD type of service is initiated from HLR, after the processing of message transfer device, be issued on the terminal that resides in the LTE network by the SGs interface, this terminal need not to carry out the CSFB operation just can receive the message that the message transfer device sends.
The USSD message of being initiated by network side can be divided into two kinds: USSD request message and USSD notification message.The USSD request message needs the terminal use to carry out alternately; The USSD notification message does not need the terminal use mutual, belongs to the passive reception of terminal.
USSD notification message in the embodiment of the invention is used for providing a kind of promptness mutual message, characteristics are " session-orienteds ", namely after a session connection is set up, the session of setting up will keep until cellphone subscriber or application either party discharge this session connection.
USSD message is compared with SMS message, and the coded system of support is the same, all supports 7BIT, 8BIT, three kinds of patterns of UCS2.Its difference is: USSD message is connection-oriented, and immediate interactivity is better, but does not support storage forwarding, and SMS message does not have session channel at the physical carrier layer, just a store-and-forward system; Comprise the USSD character string in the USSD message, this USSD character string is the actual content that really represents to the user, and maximum length is 160 bytes, and SMS message maximum length is 140 bytes; When 7 of USSD character string residues were filled the bit position, then USSD can use " 0001101 " namely " carriage return " fill, rather than with " 0000000 ", avoid the receiving terminal general " 0000000 " be interpreted as character string " ".The filling of SMS message does not have this requirement.
The method that the invention described above embodiment discloses can central processing unit in, in other words by central processing unit to realize.Central processing unit may be a kind of integrated circuit (IC) chip, has the disposal ability of signal.In implementation procedure, each step of said method can be finished by the integrated logic circuit of the hardware in the central processing unit or the instruction of software form.Be used for carrying out the method that the embodiment of the invention discloses, above-mentioned central processing unit can be general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), ready-made programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic device, discrete hardware components.Can realize or carry out disclosed each method, step and logic diagram in the embodiment of the invention.General processor can be that microprocessor or this processor also can be the processors of any routine etc.Step in conjunction with the disclosed method of the embodiment of the invention can be presented as directly that hardware processor is complete, and is perhaps complete with the hardware in the processor and software module combination.Software module can be positioned at random asccess memory, and flash memory, read-only memory are in the storage medium of this area maturations such as programmable read only memory or electrically erasable programmable memory, register.This storage medium is positioned at memory, and the information in the central processing unit read memory is finished the step of said method in conjunction with its hardware.
Embodiment one:
As shown in Figure 2, the flow process of in the embodiment of the invention USSD message being propagated is as follows:
S101, circuit domain dropping message transfer device receive the unstructured supplementary service data USSD notification message that attaching position register HLR sends, and comprise the sign that resides in the terminal on the long evolving system LTE in the described USSD notification message;
Need to prove that the application scenarios of the embodiment of the invention is that terminal resides in the scene on the LTE, the message transfer device comprises moving exchanging center MSC or CSFB Proxy.The sign of the terminal that comprises in the USSD notification message can be international mobile subscriber identity IMSI, and this sign is used for determining the terminal of message to be received.
S102, described USSD notification message is converted to one or more short message service SMS message;
In embodiments of the present invention, comprise in the USSD notification message for the parameter and the USSD character string that represent the USSD coded system.Described decoded USSD notification message is converted to one or more SMS message, specific as follows:
The message transfer device is decoded the USSD notification message, and obtains parameter and described USSD character string for expression USSD coded system (USSD Data Coding Scheme);
Get access to after this parameter and the character string, the message transfer device makes up one or more SMS message, and building mode can make up according to the standard SMS message format of 3GPP 23.038 agreements, is not repeated here.After the structure, described parameter for expression USSD coded system and described USSD character string are encapsulated one or more SMS message into described structure, one or more SMS message of this structure is the SMS message to described terminal to be sent.
Need to prove, because the maximum length of SMS message is 140 bytes, so when described USSD string length was not more than 140 byte, described message transfer device can only make up a SMS message.And when described USSD string length during greater than 140 byte, described message transfer device then can make up at least two SMS message; In one embodiment of the invention, the length of USSD character string can not surpass 160 bytes, therefore when USSD string length during greater than 140 byte, can make up two SMS message, at this moment, the message transfer device encapsulates one or more SMS message into described structure with described parameter for expression USSD coded system and described USSD character string, is specially:
The message transfer device encapsulates two SMS message into described structure successively with described parameter for sign USSD coded system, namely, the message transfer device has made up two SMS message, not only this parameter will be encapsulated into article one SMS message, also this parameter will be encapsulated into second SMS message.The message transfer device is split as two parts USSD character string that length all is not more than 140 bytes with described USSD character string, respectively described two parts USSD character string is encapsulated in two SMS message of described structure.For example, the USSD character string is 150 byte lengths, the message transfer device can be according to the form that presets, this USSD character string torn open be two parts, first is 140 bytes, second portion is 10 bytes, and first is encapsulated the SMS message that makes up into article one, and second portion encapsulates the SMS message that makes up into second.Need to prove that the step of this encapsulation does not have strict sequential relationship, can be to encapsulate simultaneously for parameter and two parts USSD character string of sign USSD coded system to advance two SMS message, also can be to encapsulate after the elder generation one.
S103, according to the sign of described terminal, send beep-page message to described terminal;
Need to prove that this beep-page message is made up by the message transfer device and forms, and this beep-page message comprises the sign of paging type, this sign is specially SMS indication (SMS indicator), shows that this paging type is the SMS type.
S104, after receiving the page-response message that described terminal sends, send described one or more SMS message by the SGs interface to described terminal.
After receiving the page-response message that terminal sends, the message transfer device sends described one or more SMS message by SGs interface (SMSover SGs) to terminal.The SGs interface is an interface that communicates between message transfer device and the MME, 3GPP 23.272 protocol definitions specifically how to adopt the mode of SMSover SGs to send SMS message to terminal, be not repeated here.Need to prove that SMS overSGs a kind ofly is sent to the mode that resides in the terminal on the LTE network with the SMS message on the GERAN/UTRAN, can not cause this terminal that resides in the LTE network to carry out CSFB and fall after rise.
Need to prove, when described one or more SMS short message sends successfully, described message transfer device sends USSD notice success response message to described HLR, or, if in process of transmitting because the system failure, perhaps the interference of noise causes losing of data or mistake in the transmission course, the SMS message error that causes terminal to receive, when the SMS message that receives when terminal is two, as long as wherein arbitrary SMS message error then this SMS message of terminal judges send unsuccessfully, at this moment, terminal is returned a SMS message error and is reported to the message transfer device; When the SMS message that receives when terminal is one, if this SMS message error, then this SMS message of terminal judges sends unsuccessfully, returning equally a SMS message error reports to the message transfer device, after the message transfer device is received the report of SMS message error, judge that arbitrary in the described one or more SMS short message sends unsuccessfully, then the message transfer device sends USSD notice failure response message to described HLR.
The method that the embodiment of the invention provides, the message transfer device receives the USSD notification message that HLR sends, described USSD notification message is decoded, and should be converted to one or more short message service SMS message by decoded USSD notification message, and send this one or more SMS message by the SGs interface to described terminal.Because the message transfer device is converted into SMS message with the USSD notification message, the mode of the transmission SMS message by SMS over SGs can not cause the generation of CSFB, so the embodiment of the invention has solved the problem that causes the CSFB frequent occurrence by USSD trafficwise message transfer, the time delay of terminal falling and the time delay that terminal is returned the LTE network have been reduced, improve the stability of PS business, reduced the waste of interface-free resources.
Embodiment two:
Fig. 3 is the flow chart of the embodiment of the invention, and as shown in Figure 3, embodiment of the invention flow process is as follows:
S201, message transfer device receive the USSD message that HLR sends;
The embodiment of the invention can be used for the scene of standard C SFB and the scene of CSFB Proxy networking simultaneously, in the scene of standard C SFB, the message transfer device is the VMSC of support CSFB function, and in the scene of CSFBProxy networking, the message transfer device is CSFB Proxy.
The message transfer device receives the USSD message that HLR sends, and this USSD message identified, its RM can be the sign that is used for this USSD type of message of expression that parses in this USSD message, and can identify this USSD message by this sign is the USSD notification message.The sign that comprises the terminal that resides in the LTE network in this notification message, this identifies in embodiments of the present invention, can be international mobile subscriber identity (International Mobile Subscriber Identity, IMSI).The message transfer device can be sent to message to terminal corresponding to this sign according to this sign.
S202, the USSD notification message is converted to SMS message;
The USSD notification message is formed according to specific form coding by a plurality of parameter informations.Wherein, parameter information includes but not limited to: USSD version information, USSD action type, USSD coded system (USSD CodeScheme) and USSD character string content (USSD String).The action type of USSD is notification type, comprises that request, notice, conversational response and session discharge.In embodiments of the present invention, the action type of USSD is the notice class.The USSD coded system has determined the coded format of USSD character string, comprises 7 codings, 8 codings and 2 byte universal character sets (2-byte Universal Character Set, UCS2) codings.The USSD character string is the essentiality content that finally is shown to the user, and maximum length is 160 bytes.
3GPP 23.272 protocol definitions, when terminal resides in the LTE network, for SMS message, do not need CSFB to fall after rise, send SMS message (SMS over SGs) mode but adopt based on the SGs interface, namely by the terminal of SGs interface transmission SMS message to the LTE network.And the coded system of SMS message is the same with the coded system of USSD, and namely SMS message is also supported 7 codings, 8 codings and UCS2 coding, and then in the embodiment of the invention, the coded system that does not need to change USSD and SMS message can realize both sides' conversion.The below introduces concrete transfer process:
After the message transfer device is received the USSD notification message, the USSD notification message is decoded, obtain the parameter (USSD Data Coding Scheme) and the USSD character string that are used for expression USSD coded system in the USSD notification message.Concrete decode procedure can be to carry out contrary coding according to USSD notification message of encoding according to specific format recited above, is not repeated here.If the length of USSD character string is greater than 140 bytes, then the message transfer device is split as two parts that length all is not higher than 140 bytes to USSD character string content, is encapsulated into respectively in two SMS message.If the string length of USSD is not more than 140 bytes, then only need be encapsulated in the SMS message.SMS message is made up by the message transfer device and forms, and can be after receiving the USSD notification message, the number of the SMS message that the USSD string length decision needs that obtain according to decoding make up.Which type of rule is the embodiment of the invention split and encapsulate and unrestrictedly according to it, for example, this USSD character string is 150 bytes, then can be split as first is 140 bytes, second portion is 10 bytes, encapsulation is advanced in the TPDU (TransportProtocol Data Unit, TPDU) of two SMS message respectively.It is as described in Table 1 that the form of SMS message is advanced in concrete encapsulation:
Table 1
As can be seen from Table 1, the message transfer device need to encapsulate the USSD encoding mode parameter in the USSD notification message and USSD character string in corresponding SMS parameter.The message transfer device is by decoding to the USSD notification message, get access to parameter and USSD character string for expression USSD coded system (USSD Data Coding Scheme), and encapsulate respectively among the TP-DCS and TP-UD parameter in the SMS message according to the form of table 1.
The USSD notification message is converted to SMS message, and send SMS message to terminal by the mode of SMS over SGs, avoided terminal to need CSFB to fall after rise causing to fall time delay, the time delay of returning the LTE network after rise, packet switching service has been interrupted and taken the problem such as interface-free resources.
S203, message transfer device issuing page message Paging to MME;
After the CSFB server is finished the structure and encapsulation of SMS message, distributing paging Paging message Paging to MME.The parameter that comprises a service indicator by name (Service indicator) in this beep-page message, this parameter value of message transfer device is set to 2, expression is SMS type of message (SMS message indicator), and namely this beep-page message is SMS message and non-voice pages message (CS callindicator).
S204, MME send out beep-page message thoroughly to terminal;
MME receives after the beep-page message of message transfer device transmission, thoroughly sends out this beep-page message to terminal.
Need to prove, comprise the sign of terminal in this beep-page message that the message transfer device issues, MME sends out this beep-page message to terminal corresponding to this sign thoroughly according to this sign.
S205, terminal to report service request information are to MME;
Terminal is after receiving the beep-page message that MME issues, this parameter of service indicator determines that the type of described beep-page message is the SMS type of message from beep-page message, make up a service request information (ServiceRequest Message) as page-response message, the concurrent affair request message that takes falls after rise and need not carry out CSFB to MME.
Need to prove, if service indicator is CS call indicator in the beep-page message, then terminal can make up an expansion service request message (Extended Service Request Message), and send this expansion service request message to MME, transmit this expansion service request message to the message transfer device by MME, after this moment, the message transfer device was received this expansion service request message, can triggering terminal carry out corresponding CSFB operation.
S206, MME send out service request information thoroughly to the message transfer device;
After MME receives this service request information, thoroughly send out this service request information to the message transfer device.
S207, message transfer device send SMS message to MME;
The message transfer device is after receiving this service request information, send SMS message to MME according to this service request information, this SMS message can be included in the descending unit data message (downlink unitdata message) in the SMS over SGs normal process.
Need to prove, after the message transfer device is received this service request information, judge that terminal is in Idle state, and can receive SMS message that then the mode by SMS over SGs issues this SMS message to terminal.S208, MME send non access stratum NAS message to terminal;
MME encapsulation SMS message is advanced in the NAS message, and sends this NAS message to terminal.
S 209, terminal send delivery report (delivery report) to MME;
After terminal receives the NAS message that has encapsulated SMS message, send delivery report to MME, show and receive this SMS message.
S210, MME issue this delivery report thoroughly to the message transfer device;
S211, message transfer device send USSD push-notification-answer message to HLR;
After receiving this delivery report, send USSD push-notification-answer message to HLR.Need to prove that if the SMS message of USSD notification message conversion is 1, when then sending this SMS message success, USSD push-notification-answer message is USSD success response message, otherwise, then be USSD failure response message; Perhaps, if the SMS message of USSD notification message conversion is 2, then need only has this SMS message of 2 all to issue the actual content that successfully could represent this USSD notification message and propagate.If in process of transmitting because the system failure, perhaps the interference of noise causes losing of data or mistake in the transmission course, the SMS message error that causes terminal to receive, when the SMS message that receives when terminal is two, as long as wherein arbitrary SMS message error then this SMS message of terminal judges send unsuccessfully, at this moment, terminal is returned a SMS message error and is reported to the message transfer device; When the SMS message that receives when terminal is one, if this SMS message error, then this SMS message of terminal judges sends unsuccessfully, returning equally a SMS message error reports to the message transfer device, after the message transfer device is received the report of SMS message error, judge that arbitrary in the described one or more SMS short message sends unsuccessfully, then the message transfer device sends USSD failure response message to HLR, otherwise, the message transfer device judges that SMS message sends successfully, then sends USSD success response message to HLR.
S212, message transfer device are finished follow-up release connection process.
The message transfer device is sent to MME with the delivery report acknowledge message, transmits this by MME and confirms message to terminal, and in addition, the message transfer device also sends releasing request message to MME, discharges this connection.
The method that the embodiment of the invention provides, the message transfer device receives the non-constructed supplementary business USSD notification message that attaching position register HLR sends, be one or more SMS message with described USSD message transformation, and send described one or more short message to described terminal, finish transmission of news.Because the message transfer device is converted into SMS message with the USSD notification message, the mode of the transmission SMS message by SMS over SGs can not cause the generation of CSFB, so the embodiment of the invention has solved the problem that causes the CSFB frequent occurrence by USSD trafficwise message transfer, the time delay of terminal falling and the time delay that terminal is returned the LTE network have been reduced, improve the stability of PS business, reduced the waste of interface-free resources.
Embodiment three:
Fig. 4 is the composition structure chart of message transfer device, as shown in Figure 4, comprising:
Receiving element 301 is used for receiving the unstructured supplementary service data USSD notification message that attaching position register HLR sends, and comprises the sign that resides in the terminal on the long evolving system LTE in the described USSD notification message;
Need to prove that the application scenarios of the embodiment of the invention is that terminal resides in the scene on the LTE, the message transfer device can be acted on behalf of Proxy for moving exchanging center MSC or CSFB.The sign of the terminal that comprises in the USSD notification message can be international mobile subscriber identity IMSI, and this sign is used for determining the terminal of message to be received.
Converting unit 302 is used for after described receiving element 301 receives the USSD notification message described USSD notification message being converted to one or more short message service SMS message; In embodiments of the present invention, comprise in the USSD notification message for the parameter and the USSD character string that represent the USSD coded system.Rear, converting unit 302 is converted to one or more SMS message with this USSD.Described converting unit 302 specifically comprises acquiring unit and encapsulation unit, wherein,
Acquiring unit is decoded the USSD notification message, and obtains parameter and described USSD character string for expression USSD coded system (USSD Data Coding Scheme).After acquiring unit got access to this parameter and character string, encapsulation unit made up one or more SMS message, and building mode can make up according to the standard SMS message format of 3GPP 23.038 agreements, is not repeated here.After encapsulation unit makes up, described parameter for expression USSD coded system and described USSD character string are encapsulated one or more SMS message into described structure, one or more SMS message of this structure is the SMS message to described terminal to be sent.
Need to prove, because the maximum length of SMS message is 140 bytes, so when described USSD string length was not more than 140 byte, encapsulation unit can only make up a SMS message.And when described USSD string length during greater than 140 byte, encapsulation unit then can make up at least two SMS message; In one embodiment of the invention, the length of USSD character string can not surpass 160 bytes, therefore when USSD string length during greater than 140 byte, can make up two SMS message, at this moment, encapsulation unit encapsulates one or more SMS message into described structure with described parameter for expression USSD coded system and described USSD character string, is specially:
Encapsulation unit encapsulates two SMS message into described structure successively with described parameter for sign USSD coded system, be that encapsulation unit has made up two SMS message, not only this parameter to be encapsulated into article one SMS message, also this parameter will be encapsulated into second SMS message.Encapsulation unit is split as two parts USSD character string that length all is not more than 140 bytes with described USSD character string, and respectively described two parts USSD character string is encapsulated in two SMS message of described structure.For example, the USSD character string is 150 byte lengths, encapsulation unit can be according to the form that presets, this USSD character string torn open be two parts, first is 140 bytes, second portion is 10 bytes, and first is encapsulated the SMS message that makes up into article one, and second portion encapsulates the SMS message that makes up into second.Need to prove that the step of this encapsulation does not have strict sequential relationship, can be to encapsulate simultaneously for parameter and two parts USSD character string of sign USSD coded system to advance two SMS message, also can be to encapsulate after the elder generation one.
Transmitting element 303 is used for the sign according to described terminal, sends beep-page message to described terminal;
Need to prove that this beep-page message is formed by the construction unit structure of message transfer device, and this beep-page message comprises the sign of paging type, this sign is specially SMS indication (SMS indicator), shows that this paging type is the SMS type.
Described receiving element 301 also is used for receiving the page-response message that described terminal sends after described transmitting element 303 sends beep-page message;
Receiving element 301 receives the page-response message that terminal sends after transmitting element 303 sends beep-page message.
Described transmitting element 303 also is used for sending described one or more SMS message by the SGs interface to described terminal after described receiving element receives described page-response message.
After receiving element 301 received page-response message, the SMS message after transmitting element 303 will will be changed by SGs interface (SMS over SGs) was sent to terminal.Before transmitting element 303 is sent to the described terminal of one or more SMS message, transmitting element 303 also needs to send beep-page message to described terminal, so that described terminal sends page-response message to the receiving element 301 of described message transfer device, the sign that comprises described terminal in the described beep-page message reaches the parameter that is used for representing described paging type.
Need to prove, when described one or more SMS short message sends successfully, described transmitting element 303 sends USSD notice success response message to described HLR, or, if in process of transmitting because the system failure, perhaps the interference of noise causes losing of data or mistake in the transmission course, the SMS message error that causes terminal to receive, when the SMS message that receives when terminal is two, as long as wherein arbitrary SMS message error then this SMS message of terminal judges send unsuccessfully, at this moment, terminal is returned a SMS message error and is reported to receiving element 301; When the SMS message that receives when terminal is one, if this SMS message error, then this SMS message of terminal judges sends unsuccessfully, return equally a SMS message error and report receiving element 301 to the message transfer device, after receiving element 301 is received the report of SMS message error, arbitrary in the described one or more SMS short message of process judgment unit judges sends unsuccessfully, and then the transmitting element 303 of message transfer device sends USSD notice failure response message to described HLR.
Fig. 5 has described the hardware structure figure of the infrastructure management node that another embodiment of the present invention provides, comprise at least one processor 401 (for example CPU), at least one network interface 402 or other communication interfaces, memory 403, with at least one communication bus 404, be used for the connection communication between these devices of realization.Processor 401 is used for the executable module of execute store 403 storages, for example computer program.Memory 403 may comprise high-speed random access memory (RAM:Random Access Memory), also may also comprise non-unsettled memory (non-volatile memory), for example at least one magnetic disc store.Realize communication connection between this system gateway and at least one other network element by at least one network interface 402 (can be wired or wireless), can use the Internet, wide area network, local network, metropolitan area network etc.
In some embodiments, memory 403 has been stored program command, program command can be carried out by processor 401, wherein, program command comprises receiving element 301, converting unit 302 and transmitting element 303, wherein, the specific implementation of each unit is not repeated here referring to the corresponding units that Fig. 5 discloses.
The device that the embodiment of the invention provides, receiving element receives the USSD notification message that HLR sends, converting unit is decoded described USSD notification message, and should be converted to one or more short message service SMS message by decoded USSD notification message, and by transmitting element this SMS message is sent to described terminal.Because the converting unit of message transfer device is converted to SMS message with the USSD notification message, the mode of the transmission SMS message by SMS over SGs can not cause the generation of CSFB, so the embodiment of the invention has solved terminal and has resided in the problem that frequently causes the CSFB frequent occurrence under the LTE scene by USSD trafficwise message transfer, the time delay of terminal falling and the time delay that terminal is returned the LTE network have been reduced, improve the stability of PS business, reduced the waste of interface-free resources.
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize with hardware, or the firmware realization, or their compound mode realizes.When using software to realize, above-mentioned functions can be stored in the computer-readable medium or as one or more instructions or code on the computer-readable medium and transmit.Computer-readable medium comprises computer-readable storage medium and communication media, and wherein communication media comprises any medium of being convenient to transmit from a place to another place computer program.Storage medium can be any usable medium that computer can access.As example but be not limited to: computer-readable medium can comprise RAM, ROM, EEPROM, CD-ROM or other optical disc storage, magnetic disk storage medium or other magnetic storage apparatus or can be used in the program code that carries or store the expectation with instruction or data structure form and can be by any other medium of computer access.In addition.Any connection can be suitable become computer-readable medium.For example, if software be use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (DSL) or the wireless technology such as infrared ray, radio and microwave from the website, server or the transmission of other remote source, under coaxial cable, optical fiber cable, twisted-pair feeder, DSL or the wireless technology such as infrared ray, wireless and microwave are included in so in the photographic fixing of medium.As used in the present invention, dish (Disk) and dish (disc) comprise compression laser disc (CD), laser dish, laser disc, digital universal laser disc (DVD), floppy disk and Blu-ray Disc, the copy data of the common magnetic of its mid-game, dish then come the copy data of optics with laser.Top combination also should be included within the protection level of computer-readable medium.
In a word, the above is the preferred embodiment of technical solution of the present invention only, is not be used to limiting protection level of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection level of the present invention.
Claims (12)
1. the method for a message transfer is characterized in that, comprising:
The message transfer device receives the unstructured supplementary service data USSD notification message that attaching position register HLR sends, and comprises the sign of the terminal that resides in long evolving system LTE network in the described USSD notification message;
Described USSD notification message is converted to one or more short message service SMS message;
According to the sign of described terminal, send beep-page message to described terminal;
After the page-response message that receives described terminal transmission, send described SMS message by the SGs interface to described terminal.
2. according to claim 1 method, it is characterized in that, comprise in the described USSD notification message for the parameter of expression USSD coded system with for the USSD character string that shows in described terminal, described one or more SMS message comprises parameter and the user data parameter of coded system
Described described USSD notification message is converted to one or more short message service SMS message, comprises:
Described USSD notification message is decoded, obtain described parameter and described USSD character string for expression USSD coded system;
Make up one or more SMS message, described parameter for expression USSD coded system is encapsulated into the parameter of the coded system of the SMS message of described structure;
Described USSD character string is encapsulated in the user data parameter of the SMS message of described structure.
3. according to claim 2 method is characterized in that described structure one or more SMS message comprises: if described USSD string length greater than 140 bytes and be not more than 160 bytes, described message transfer device makes up two SMS message;
Described described USSD character string is encapsulated in the user data parameter of the SMS message of described structure comprises:
Described USSD character string is split as two parts USSD character string that length all is not more than 140 bytes, respectively described two parts USSD character string is encapsulated in two SMS message of described structure.
4. according to claim 2 method, it is characterized in that described structure one or more SMS message comprises: if described USSD string length is not more than 140 bytes, described message transfer device makes up a SMS message.
5. according to claim 1 to 4 each described methods, it is characterized in that, described after sending described one or more SMS message to described terminal by the SGs interface, also comprise:
When described one or more SMS message sends successfully, send USSD notice success response message to described HLR, or,
When sending unsuccessfully for arbitrary in described many SMS message, send USSD notice failure response message to described HLR.
6. according to claim 1 to 5 each described methods, it is characterized in that, the sign that comprises described paging type in the described beep-page message, described paging type is the SMS type of message, so that after described terminal receives described beep-page message, make up service request information as page-response message, and send described service request information to described message transfer device
After the described page-response message receiving described terminal transmission, send described SMS message by the SGs interface to described terminal, comprising:
Described message transfer device sends described SMS message by the SGs interface to described terminal according to described service request information after the described service request information that receives described terminal transmission.
7. a message transfer device is characterized in that, comprising:
Receiving element is used for receiving the unstructured supplementary service data USSD notification message that attaching position register HLR sends, and comprises the sign that resides in the terminal on the long evolving system LTE in the described USSD notification message;
Converting unit is used for after described receiving element receives described USSD notification message described USSD notification message being converted to one or more short message service SMS message;
Transmitting element is used for the sign according to the terminal of described receiving element reception, sends beep-page message to described terminal;
Described receiving element also is used for receiving the page-response message that described terminal sends after described transmitting element sends beep-page message;
Described transmitting element also is used for after described receiving element receives described page-response message, sends the one or more SMS message that described converting unit conversion obtains by the SGs interface to described terminal.
8. message transfer device according to claim 7, it is characterized in that, comprise parameter and USSD character string for expression USSD coded system in the described USSD notification message, described SMS message comprises parameter and the user data parameter of coded system, and described converting unit comprises:
Acquiring unit is used for described USSD notification message is decoded, and obtains described parameter and described USSD character string for showing in described terminal for expression USSD coded system;
Encapsulation unit, be used for to make up one or more SMS message, described parameter and the described USSD character string for expression USSD coded system that described acquiring unit is obtained will described parameter for representing the USSD coded system encapsulates into the parameter of the coded system of the SMS message of described structure; Described USSD character string is encapsulated in the user data parameter of the SMS message of described structure.
9. according to claim 8 message transfer device is characterized in that encapsulation unit makes up one or more SMS message and comprises: if described USSD string length greater than 140 bytes and be not more than 160 bytes, described encapsulation unit makes up two SMS message,
Described encapsulation unit encapsulates described USSD character string in the user data parameter of the SMS message of described structure and comprises:
Described USSD character string is split as two parts USSD character string that length all is not more than 140 bytes, respectively described two parts USSD character string is encapsulated in the user data parameter of two SMS message of described structure.
10. according to claim 8 message transfer device, it is characterized in that described encapsulation unit makes up one or more SMS message and comprises: if described USSD string length is not more than 140 bytes, described encapsulation unit makes up a SMS message.
11. to 10 each described message transfer devices, it is characterized in that according to claim 7,
Described transmitting element also is used for when described one or more SMS short message sends successfully, and described transmitting element sends USSD notice success response message to described HLR; Or when sending unsuccessfully for arbitrary in described many SMS short messages, described transmitting element sends USSD notice failure response message to described HLR.
12. according to claim 7 to 11 each described message transfer devices, it is characterized in that, the sign that comprises described paging type in the described beep-page message, described paging type is the SMS type of message, so that after described terminal receives described beep-page message, make up service request information as page-response message, and send described service request information;
Described after described receiving element receives described page-response message, comprise to the one or more SMS message that described terminal sends described converting unit conversion acquisition by the SGs interface:
Receive the described service request information of described terminal transmission at described receiving element after, described transmitting element sends described SMS message by the SGs interface to described terminal according to described service request information.
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| CN2012105843315A CN103079179A (en) | 2012-12-28 | 2012-12-28 | Message transmission method and device |
| PCT/CN2013/085225 WO2014101530A1 (en) | 2012-12-28 | 2013-10-15 | Method and device for transmitting messages |
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