WO2014101530A1 - Procédé et dispositif pour la transmission de messages - Google Patents

Procédé et dispositif pour la transmission de messages Download PDF

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Publication number
WO2014101530A1
WO2014101530A1 PCT/CN2013/085225 CN2013085225W WO2014101530A1 WO 2014101530 A1 WO2014101530 A1 WO 2014101530A1 CN 2013085225 W CN2013085225 W CN 2013085225W WO 2014101530 A1 WO2014101530 A1 WO 2014101530A1
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WO
WIPO (PCT)
Prior art keywords
message
ussd
terminal
sms
paging
Prior art date
Application number
PCT/CN2013/085225
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English (en)
Chinese (zh)
Inventor
王新勇
Original Assignee
华为技术有限公司
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Filing date
Publication date
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Publication of WO2014101530A1 publication Critical patent/WO2014101530A1/fr

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Classifications

    • 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]
    • 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]
    • 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

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a method and an apparatus for transmitting a message. Background technique
  • Unstructured Supplementary Service Data is a global mobile communication system based on GSM (Global System for Mobile)
  • SIM Subscriber Identity Module
  • USSD service can be used alone or with general packet radio service (General Packet Radio
  • GPRS GPRS
  • value-added services such as mobile banking, financial stock trading, mobile phone billing, weather forecasting and inquiries, email sending and receiving, flight inquiries, online booking, polls Wait.
  • the USSD has a small impact on the structure of the existing communication system, and the operator can flexibly launch functional services for the specific conditions of the local network to conveniently provide various types of data services for mobile users. Therefore, the way to spread messages based on USSD services has become more and more applications.
  • UMTS Evolved UMTS Territorial Radio Access Network
  • GERAN GSM EDGE Radio Access Network
  • UTRAN UMTS Territorial Radio Access Network
  • CSFB Circuit Switched Fallback
  • the 3GPP 23.272 protocol defines a procedure for a terminal to perform a CSFB operation. Taking a standard CSFB networking architecture as an example, the transmitting message device receives the USSD request message sent by the Home Location Register (HLR), and then sends the search.
  • HLR Home Location Register
  • the call message is advertised to the mobility management entity (Mobility Management Entity, ⁇ ).
  • the MME After receiving the paging message, the MME notifies the terminal to perform circuit domain fallback through the evolved base station (Evolved Node ⁇ , ⁇ -NodeB), and completes the circuit at the terminal. After the domain falls back, the transmission message device, the HLR, the MME, and the terminal complete the subsequent USSD service flow.
  • each USSD service process will trigger the CSFB operation.
  • Frequent USSD services will cause CSFB to occur frequently, and each CSFB operation needs a certain amount.
  • Time although the time of a single CSFB operation is short, the frequent occurrence of CSFB may result in a large terminal fallback delay, a delay of the terminal returning to the LTE network, and a packet switching (PS) service interruption, etc., and
  • PS packet switching
  • Each CSFB operation will occupy the air interface resources. It takes a certain time to translate the air interface resources after the CSFB operation is completed. Frequent CSFB operations will cause the air interface resources to be occupied by CSFB operations, resulting in tight air interface resources.
  • the embodiments of the present invention provide a method and a device for transmitting a message, which solves the problem that the CSFB frequently occurs when the terminal is in the LTE scenario and the message is frequently transmitted through the USSD service mode, and the message can be transmitted through the USSD service mode.
  • the number of times that it needs to fall back to the CS domain thereby reducing the delay caused by CSFB, improving the stability of the PS service, and reducing the occupation of the air interface resources by the CSFB.
  • an embodiment of the present invention provides a method for transmitting a message, including:
  • the transport message device receives the unstructured supplementary service data USSD notification message sent by the home location register HLR, where the USSD notification message includes an identifier of the terminal that resides in the LTE network of the long term evolution system;
  • the SMS message After receiving the paging response message sent by the terminal, the SMS message is sent to the terminal through the SGs interface.
  • the USSD notification message includes a parameter for indicating a USSD coding mode and an USSD string for displaying on the terminal, where the one or more SMS messages include an encoding mode parameter and a user data parameter.
  • Decoding the USSD notification message, and converting the decoded USSD notification message into one or more SMS messages including:
  • the USSD string is encapsulated into user data parameters of one or more SMS messages constructed.
  • the constructing the one or more SMS messages includes: if the length of the USSD string is greater than 140 bytes and not greater than 160 Byte, the transport message device constructs two SMS messages;
  • the encapsulating the USSD string into the user data parameter of the constructed SMS message includes:
  • the USSD string is split into two parts of USSD strings each having a length of no more than 140 bytes, and the two parts of the USSD string are respectively encapsulated into the two SMS messages constructed.
  • the constructing the one or more SMS messages includes: if the length of the USSD string is not greater than 140 bytes, The transport message device constructs an SMS message.
  • an embodiment of the present invention provides a device for transmitting a message, including:
  • a receiving unit configured to receive an unstructured supplementary service data USSD message sent by a home location register HLR, where the USSD message includes an identifier of a terminal residing on the Long Term Evolution (LTE) system; and a converting unit, configured to be in the receiving unit After receiving the USSD notification message, converting the USSD notification message into one or more short message service SMS messages;
  • LTE Long Term Evolution
  • a sending unit configured to send, according to the identifier of the terminal received by the receiving unit, a paging message to the terminal;
  • the receiving unit is further configured to: after the sending unit sends a paging message, receive a paging response message sent by the terminal;
  • the sending unit is further configured to: after the receiving unit receives the paging response message, send, by using an SGs interface, one or more SMS messages obtained by the conversion unit by using the SGs interface.
  • the USSD notification message includes a parameter for indicating a USSD coding mode and a USSD string, where the one or more SMS messages include parameters of the coding mode and user data.
  • the conversion unit includes:
  • An obtaining unit configured to decode the USSD notification message, and obtain the parameter used to indicate the USSD encoding mode and the USSD string used for displaying on the terminal;
  • Encapsulating unit configured to construct one or more SMS messages, and the parameters used to represent the USSD encoding mode and the USSD string obtained by the obtaining unit encapsulate the parameters used to represent the USSD encoding mode into the In the parameter of the encoding mode of the constructed SMS message; encapsulating the USSD string into the user data parameter of the constructed SMS message.
  • the encapsulating unit constructing one or more SMS messages includes: if the length of the USSD string is greater than 140 bytes and not greater than 160 Byte, the encapsulation unit constructs two SMS messages,
  • the encapsulating unit encapsulates the USSD string into the user data parameter of the constructed SMS message, including:
  • the encapsulating unit constructing one or more SMS messages includes: if the length of the USSD string is not greater than 140 bytes, The encapsulation unit constructs an SMS message.
  • the transmission message device receives the USSD notification message sent by the HLR, decodes the USSD notification message, and converts the decoded USSD notification message into one or more short messages.
  • a message service SMS message, and the SMS message is sent to the terminal.
  • the method for transmitting the SMS message by the SMS over SGs does not cause the CSFB to be generated.
  • the embodiment of the present invention solves the problem that the terminal is frequently transmitted through the USSD service mode in the LTE scenario.
  • the message causes frequent occurrence of CSFB, which reduces the delay of the terminal fallback and the delay of the terminal returning to the LTE network, improves the stability of the PS service, and reduces the waste of air interface resources.
  • FIG. 1 is a structural diagram of an application environment according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of Embodiment 2 of the present invention.
  • FIG. 4 is a structural diagram of a device in Embodiment 3 of the present invention.
  • FIG. 5 is a block diagram showing the hardware architecture of the device in Embodiment 3 of the present invention. detailed description
  • FIG. 1 is a schematic diagram of an application environment architecture according to an embodiment of the present invention.
  • the architecture includes a radio access network (RAN) and a core network (Core Network, CN).
  • the CN is logically divided into a Circuit Switched (CS) domain and a Packet Switched (PS) domain.
  • Mobile Soft Switch Center (MSC) is CS The entities in the domain, including the visited mobile switching center 11 (the visited MSC, VMSC) and the gateway mobile softswitching center 12 (Gateway MSC, GMSC), wherein the VMSC can exchange information with the charging system and the like, and the home address
  • the register/home subscriber server HLR/HSS 13 communicate with each other to perform basic call and message transmission.
  • the VMSC can implement the function of CSFB, or adopt a dedicated CSFB proxy, that is, CSFB Proxy to implement the function of CSFB.
  • the MSC including the VMSC and GMSC
  • the CSFB Proxy are defined as transport message devices.
  • the VMSC and the MME are connected through an SGs interface to implement interconnection and interworking between the UMTS network and the LTE network.
  • the mobility management entity MME14, S-GW/P-GW15 is an entity of the PS domain in the LTE network.
  • the terminal resides in the LTE network, and the message of the USSD service type is initiated by the HLR.
  • the SGs interface is delivered to the terminal residing on the LTE network, and the terminal can receive the message sent by the transmission message device without performing CSFB operation.
  • the US SD messages initiated by the network side can be divided into two types: US SD request message and US SD notification message.
  • USSD request message requires the end user to interact; the USSD notification message does not require terminal user interaction and belongs to the passive reception of the terminal.
  • the USSD notification message in the embodiment of the present invention is used to provide a timely interaction message, which is characterized by "session-oriented", that is, when a session connection is established, the established session will remain until the mobile phone user or the application is released. The session is connected.
  • USSD messages support the same encoding method, and support 7BIT, 8BIT, and UCS2 modes. The difference is that the USSD message is connection-oriented and has good interactivity, but does not support store-and-forward.
  • the SMS message has no session channel on the physical bearer layer. It is only a store-and-forward system.
  • the USSD message contains the USSD string.
  • the USSD string is the actual content that is actually presented to the user.
  • the maximum length is 160 bytes, and the maximum length of the SMS message is 140 bytes.
  • the method disclosed in the foregoing embodiments of the present invention may be implemented in a central processing unit, or by a central processing unit.
  • the central processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a central processing unit or an instruction in a form of software.
  • the foregoing central processing unit may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • Device discrete gate or transistor method, step and logic block diagram.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the central processor reads the information in the memory, and combines the hardware to complete the steps of the foregoing method.
  • Embodiment 1 Embodiment 1:
  • the process of propagating the USSD message in the embodiment of the present invention is as follows:
  • the circuit domain fallback transmission message device receives the unstructured supplementary service data sent by the home location register, the USSD notification message, where the USSD notification message includes an identifier of the terminal that resides on the LTE-LTE system.
  • the application scenario of the embodiment of the present invention is a scenario in which the terminal resides on the LTE, and the transmission message device includes a mobile switching center MSC or a CSFB Proxy.
  • the identifier of the terminal included in the USSD notification message may be an International Mobile Subscriber Identity (IMSI), which is used to determine the terminal of the message to be received.
  • IMSI International Mobile Subscriber Identity
  • the USSD notification message includes a parameter for indicating the USSD coding mode and a USSD string. Converting the decoded USSD notification message into one or more SMS messages, as follows: Transmitting the message device to decode the USSD notification message, and obtaining a parameter indicating the USSD Data Coding Scheme and the USSD string;
  • the transmission message device constructs one or more SMS messages, and the construction manner can be constructed according to the standard SMS message format of the 3GPP 23.038 protocol, which is not described here.
  • the parameter for indicating the USSD encoding mode and the USSD string are encapsulated into one or more SMS messages of the construct, and the one or more SMS messages that are configured are to be sent to the The SMS message of the terminal.
  • the transport message device can construct only one SMS message.
  • the transport message device may construct at least two SMS messages; in one embodiment of the present invention, the length of the USSD string does not exceed 160 bytes, When the length of the USSD string is greater than 140 bytes, two SMS messages can be constructed.
  • the transport message device encapsulates the parameter for indicating the USSD encoding mode and the USSD string into one or more of the constructs. In the SMS message, the specific is:
  • the transport message device sequentially encapsulates the parameters for identifying the USSD encoding mode into the two SMS messages constructed, that is, the transport message device constructs two SMS messages, and not only encapsulates the parameter into the first SMS message.
  • the message is also encapsulated into a second SMS message.
  • the messaging device splits the USSD string into two partial USSD strings each having a length of no more than 140 bytes, and respectively encapsulating the two partial USSD strings into the two SMS messages constructed.
  • the USSD string is 150 bytes long, and the transmission message device can split the USSD string into two parts according to a preset format, the first part is 140 bytes, the second part is 10 bytes, and the first part is Encapsulated into the first constructed SMS message, the second part is encapsulated into the second constructed SMS message. It should be noted that the step of the encapsulation does not have a strict timing relationship.
  • the parameters for identifying the USSD encoding mode and the two parts of the USSD string may be encapsulated into two SMS messages, or may be encapsulated one after another.
  • the paging message is constructed by the transmission message device, and the paging message includes an identifier of the paging type, and the identifier is specifically an SMS indicator, indicating that the paging type is an SMS type.
  • the transmission message device After receiving the paging response message sent by the terminal, the transmission message device sends the one or more SMS messages to the terminal through the SGs interface (SMS over SGs).
  • the SGs interface is an interface for transmitting communication between the message device and the MME.
  • the 3GPP 23.272 protocol defines how to send SMS messages to the terminal in the manner of SMS over SGs, which is not described here. It should be noted that the SMS over SGs is a way to send the SMS message on the GERAN/UTRAN to the terminal camping on the LTE network, and does not cause the CSFB to fall back to the terminal camping on the LTE network.
  • the transmission message device sends a USSD notification success response message to the HLR, or, if the system is faulty during transmission, or during transmission
  • the noise caused by the noise causes the data to be lost or incorrect.
  • the SMS message received by the terminal is incorrect.
  • the terminal determines that the SMS message failed to be sent as long as any one of the SMS messages is incorrect.
  • the terminal returns an SMS message error report to the transmission message device; when the SMS message received by the terminal is one, if the SMS message is incorrect, the terminal determines that the SMS message is failed to be sent, and also returns an SMS message error report to the transmission message.
  • the device after receiving the SMS message error report, determines that any one of the one or more SMS short messages fails to be sent, and the transmitting message device sends a USSD notification failure response message to the HLR.
  • the transmission message device receives the USSD notification message sent by the HLR, decodes the USSD notification message, and converts the decoded USSD notification message into one or more short message service SMS messages. And sending the one or more SMS messages to the terminal through the SGs interface. Since the transmission message device converts the USSD notification message into an SMS message, the way of sending the SMS message through the SMS over SGs does not cause CSFB to occur, so The embodiment of the invention solves the problem that the CSFB frequently occurs when the message is transmitted through the USSD service mode, reduces the delay of the terminal falling back and the delay of the terminal returning to the LTE network, improves the stability of the PS service, and reduces the waste of the air interface resource.
  • Embodiment 2 Embodiment 2:
  • FIG. 3 is a flowchart of an embodiment of the present invention. As shown in FIG. 3, the process of the embodiment of the present invention is as follows:
  • S201 The transmitting message device receives the USSD message sent by the HLR.
  • the embodiment of the present invention can be used in both the standard CSFB scenario and the CSFB Proxy networking scenario.
  • the message device is a VMSC supporting the CSFB function, and in the CSFB Proxy networking scenario, the message device is transmitted.
  • the message device is transmitted.
  • CSFB Proxy For CSFB Proxy.
  • the transmitting message device receives the USSD message sent by the HLR, and identifies the USSD message by identifying the identifier of the USSD message in the USSD message, and the identifier can identify that the USSD message is USSD notification message.
  • the notification message includes an identifier of a terminal that resides in the LTE network, and the identifier may be an International Mobile Subscriber Identity (IMSI) in the embodiment of the present invention.
  • IMSI International Mobile Subscriber Identity
  • the transmitting message device can deliver the message to the terminal corresponding to the identifier according to the identifier.
  • the USSD notification message is encoded by a plurality of parameter information in a specific format.
  • the parameter information includes but is not limited to: USSD version information, USSD operation type, USSD code scheme (USSD Code Scheme), and USSD string content (USSD String).
  • USSD operation type is a notification type, including request, notification, session response, and session translation.
  • the operation type of the USSD is a notification class.
  • the USSD encoding method determines the encoding format of the USSD string, including 7-bit encoding, 8-bit encoding, and 2-byte Universal Character Set (UCS2) encoding.
  • the USSD string is the final content that is ultimately displayed to the user, with a maximum length of 160 bytes.
  • 3 GPP 23.272 protocol defines that when the terminal resides in the LTE network, for the SMS message, the CSFB is not required to fall back, but the SMS message is sent based on the SGs interface (SMS over SGs), that is, the SMS message is transmitted to the LTE through the SGs interface. Terminal under the network.
  • the coding manner of the SMS message is the same as that of the USSD, that is, the SMS message also supports the 7-bit coding, the 8-bit coding, and the UCS2 coding.
  • the coding mode of the USSD and the SMS message is not required to be converted. Both conversions can be achieved. The following describes the specific conversion process:
  • the transmitting message device After receiving the USSD notification message, the transmitting message device decodes the USSD notification message to obtain the USSD Data Coding Scheme and the USSD string in the USSD notification message.
  • the specific decoding process may be inverse coding according to the USSD notification message encoded according to the specific format described above, and is not described here. If the length of the USSD string is greater than 140 bytes, the transport message device splits the contents of the US SD string into two parts that are not longer than 140 bytes, and are respectively encapsulated into two SMS messages. If the length of the USSD string is not more than 140 bytes, it is only encapsulated in an SMS message.
  • the SMS message is constructed by the transport message device, and after receiving the USSD notification message, the number of SMS messages to be constructed is determined according to the length of the USSD string obtained by the decoding.
  • the embodiment of the present invention has no limitation on what kind of rules to be split and encapsulated. For example, if the USSD string is 150 bytes, it can be split into 140 bytes in the first part and 10 bytes in the second part. , respectively encapsulated into the Transport Protocol Data Unit (TPDU) of two SMS messages.
  • TPDU Transport Protocol Data Unit
  • the transport message device needs to encapsulate the USSD encoding mode parameter and the USSD string in the USSD notification message into the corresponding SMS parameters.
  • the transmission message device decodes the USSD notification message, obtains parameters and USSD strings for indicating the USSD Data Coding Scheme, and encapsulates the TP-DCS and TP in the SMS message according to the format of Table 1. - in the UD parameter.
  • the USSD notification message is converted into an SMS message, and the SMS message is sent to the terminal by means of the SMS over SGs, which avoids the problem that the terminal needs the CSFB to fall back, causing the fallback delay, the delay of returning to the LTE network, the interruption of the packet switching service, and the occupation of air interface resources. .
  • the transmitting message device sends a paging message to the MME.
  • the paging Paging message is sent to the MME.
  • the paging message includes a parameter named a service indicator, and the transmission message device sets the parameter value to 2, indicating that it is an SMS message type (SMS message indicator), that is, the paging message is an SMS message.
  • SMS message indicator SMS message indicator
  • Non-voice page message (CS call Indicator ).
  • the MME transparently sends a paging message to the terminal.
  • the MME After receiving the paging message sent by the message transmitting device, the MME transparently transmits the paging message to the terminal. It should be noted that the paging message sent by the transmission message device includes the identifier of the terminal, and the MME transparently transmits the paging message to the terminal corresponding to the identifier according to the identifier.
  • the service request message is sent to the MME on the terminal.
  • the terminal After receiving the paging message sent by the MME, the terminal determines, according to the parameter of the service indication code in the paging message, that the type of the paging message is an SMS message type, and constructs a service request message as a paging. The message is sent, and the service request message is sent to the MME without CSFB fallback.
  • the terminal constructs an extended service request message (Extended Service Request Message), and sends the extended service request message to the MME, and the MME forwards the extended service.
  • the request message is sent to the message device.
  • the terminal triggers the terminal to perform the corresponding CSFB operation.
  • the MME transmits a service request message to the transmission message device.
  • the MME After receiving the service request message, the MME transparently transmits the service request message to the transmission message device. S207.
  • the transmission message device sends an SMS message to the MME.
  • the transport message device After receiving the service request message, the transport message device sends an SMS message to the MME according to the service request message, and the SMS message may be included in a downlink unit data message in the SMS over SGs standard flow.
  • the transmitting message device determines that the terminal is in an idle state and can receive the SMS message, and then sends the SMS message to the terminal by means of SMS over SGs. S208.
  • the MME sends a non-access stratum NAS message to the terminal.
  • the MME encapsulates the SMS message into the NAS message and sends the NAS message to the terminal.
  • the terminal sends a delivery report to the MME. After receiving the NAS message encapsulating the SMS message, the terminal sends a delivery report to the MME, indicating that the SMS message has been received.
  • the MME transparently sends the delivery report to the transmission message device.
  • the transmission message device sends a USSD notification response message to the HLR.
  • the USSD notification response message is sent to the HLR. It should be noted that if the SMS message translated by the US SD notification message is one, when the SMS message is successfully sent, the US SD notification response message is a USSD success response message, and vice versa, a USSD failure response message; or, if USSD If the SMS message of the notification message is changed to 2, only the SMS messages of the two messages are sent successfully to indicate that the actual content of the USSD notification message has been transmitted. If the data is lost or incorrect due to system failure or noise during transmission, the SMS message received by the terminal is incorrect. When the SMS message received by the terminal is two, only one of the SMS messages is received. If the error is made, the terminal determines that the SMS message has failed to be sent.
  • the terminal returns an SMS message error report to the transmission message device.
  • the SMS message received by the terminal is one, if the SMS message is incorrect, the terminal determines the current SMS message. The transmission fails, and an SMS message error report is also returned to the transmission message device. After the transmission message device receives the SMS message error report, it is determined that any one of the one or more SMS short messages fails to be sent, and the transmission message device fails to send the USSD. The response message is sent to the HLR. Conversely, if the transmission message device determines that the SMS message is successfully sent, the USSD success response message is sent to the HLR.
  • the transmission message device completes a subsequent release connection process.
  • the transport message device sends a delivery report acknowledgement message to the MME, and the MME forwards the acknowledgement message to the terminal. In addition, the transport message device also sends a release request message to the MME to release the current connection.
  • the transport message device receives the unstructured supplementary service USSD notification message sent by the home location register HLR, converts the USSD message into one or more SMS messages, and sends the one or more short messages.
  • the message is sent to the terminal to complete the propagation of the message.
  • the method for transmitting the SMS message by the SMS over SGs does not cause the CSFB to be generated.
  • the embodiment of the present invention solves the problem that the CSFB frequently occurs when the message is transmitted through the USSD service mode. Reduce the delay of terminal fallback and terminal return The delay of returning to the LTE network improves the stability of the PS service and reduces the waste of air interface resources.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • FIG. 4 is a structural diagram of a device for transmitting a message, as shown in FIG. 4, including:
  • the receiving unit 301 is configured to receive an unstructured supplementary service data USSD notification message sent by the home location register HLR, where the USSD notification message includes an identifier of a terminal that resides on the Long Term Evolution (LTE) system;
  • LTE Long Term Evolution
  • the application scenario of the embodiment of the present invention is a scenario in which the terminal resides on the LTE, and the transmission message device may be a mobile switching center MSC or a CSFB proxy proxy.
  • the identifier of the terminal included in the USSD notification message may be an International Mobile Subscriber Identity (IMSI), which is used to determine the terminal to receive the message.
  • IMSI International Mobile Subscriber Identity
  • the converting unit 302 is configured to: after the receiving unit 301 receives the USSD notification message, convert the USSD notification message into one or more short message service SMS messages; in the embodiment of the present invention, the USSD notification message includes Indicates the USSD encoding mode parameters and USSD string. Thereafter, the converting unit 302 converts the USSD into one or more SMS messages.
  • the conversion unit 302 specifically includes an obtaining unit and a packaging unit, where
  • the obtaining unit decodes the USSD notification message, and obtains a parameter indicating the USSD Data Coding Scheme and the USSD string.
  • the encapsulating unit constructs one or more SMS messages, and the construction manner can be constructed according to the standard SMS message format of the 3GPP 23.038 protocol, which is not described here.
  • the parameter for indicating the USSD coding mode and the USSD string are encapsulated into the one or more SMS messages that are configured, and the one or more SMS messages that are configured are to be sent to The SMS message of the terminal.
  • the encapsulating unit can construct only one SMS message. And when the length of the USSD string is greater than 140 bytes, the encapsulating unit can construct at least two SMS messages. In one embodiment of the present invention, the length of the USSD string does not exceed 160 bytes, so when the length of the USSD string is greater than At 140 bytes, two SMS messages can be constructed. In this case, the encapsulating unit encapsulates the parameter for indicating the USSD encoding mode and the USSD string into one or more SMS messages of the construct, specifically :
  • the encapsulating unit sequentially encapsulates the parameters for identifying the USSD encoding mode into the two SMS messages constructed, that is, the encapsulating unit constructs two SMS messages, and not only encapsulates the parameter into the first SMS message, but also encapsulates the parameter into the first SMS message.
  • the parameter is to be encapsulated into a second SMS message.
  • the encapsulation unit splits the USSD string into two partial USSD strings each having a length of no more than 140 bytes, and encapsulates the two partial USSD strings into the two SMS messages constructed. For example, the USSD string is 150 bytes long.
  • the encapsulation unit can split the USSD string into two parts according to a preset format.
  • the first part is 140 bytes, and the second part is 10 bytes.
  • the first part is encapsulated.
  • the second part is encapsulated into the second constructed SMS message. It should be noted that the step of the encapsulation does not have a strict timing relationship.
  • the parameters for identifying the USSD encoding mode and the two USSD strings may be encapsulated into two SMS messages, or may be encapsulated one after another.
  • the sending unit 303 is configured to send, according to the identifier of the terminal, a paging message to the terminal.
  • the paging message is constructed by a building unit of the transmission message device, and the paging message includes searching
  • the identifier of the call type, the identifier is specifically an SMS indicator, indicating that the paging type is an SMS type.
  • the receiving unit 301 is further configured to: after the sending unit 303 sends the paging message, receive a paging response message sent by the terminal;
  • the receiving unit 301 receives the paging response message sent by the terminal after the sending unit 303 sends the paging message.
  • the sending unit 303 is further configured to: after the receiving unit receives the paging response message, The one or more SMS messages are sent to the terminal via the SGs interface.
  • the transmitting unit 303 After the receiving unit 301 receives the paging response message, the transmitting unit 303 will transmit the converted SMS message to the terminal through the SGs interface (SMS over SGs). Before the sending unit 303 sends the one or more SMS messages to the terminal, the sending unit 303 further needs to send a paging message to the terminal, so that the terminal sends a paging response message to the receiving unit of the transmitting message device. 301.
  • the paging message includes an identifier of the terminal and a parameter used to indicate the paging type.
  • the sending unit 303 sends a USSD notification success response message to the HLR, or if a system failure occurs during transmission, or during transmission
  • the noise caused by the noise causes the data to be lost or incorrect.
  • the SMS message received by the terminal is incorrect.
  • the terminal determines that the SMS message failed to be sent as long as any one of the SMS messages is incorrect.
  • the terminal returns an SMS message error report to the receiving unit 301; when the SMS message received by the terminal is one, if the SMS message is incorrect, the terminal determines that the SMS message is failed to be sent, and also returns an SMS message error report to the transmission message.
  • the receiving unit 301 After receiving the SMS message error report, the receiving unit 301 receives the SMS message error report, and after the determining unit determines that any one of the one or more SMS short messages fails to be sent, the sending unit 303 of the transmitting message device sends a USSD notification failure response. Message to the HLR.
  • FIG. 5 depicts a hardware architecture diagram of a cornerstone out-of-facilities management node provided by another embodiment of the present invention, including at least one processor 401 (eg, a CPU), at least one network interface 402 or other communication interface, memory 403, and at least one communication.
  • a bus 404 is used to implement connection communication between these devices.
  • the processor 401 is configured to execute an executable module, such as a computer program, stored in the memory 403.
  • the memory 403 may include a high speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory such as at least one disk memory.
  • RAM Random Access Memory
  • the communication connection between the system gateway and at least one other network element is implemented by at least one network interface 402 (which may be wired or wireless), and may use an Internet, a wide area network, a local network, a metropolitan area network, or the like.
  • the memory 403 stores program instructions, and the program instructions may be executed by the processor 401.
  • the program instructions include a receiving unit 301, a converting unit 302, and a sending unit 303, wherein specific implementations of the units are shown in FIG. The corresponding units disclosed are not described here.
  • the receiving unit receives the USSD notification message sent by the HLR, the converting unit decodes the USSD notification message, and converts the decoded USSD notification message into one or more short message service SMS messages. And sending the SMS message to the terminal by the sending unit.
  • the method for transmitting the SMS message by the SMS over SGs does not cause the occurrence of the CSFB.
  • the embodiment of the present invention solves the problem that the terminal residing in the LTE scenario frequently passes the USSD.
  • the problem of frequent occurrence of CSFB is caused by the transmission of the service mode, which reduces the delay of the terminal fallback and the delay of the terminal returning to the LTE network, improves the stability of the PS service, and reduces the waste of the air interface resources.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
  • any connection may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave
  • coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • a disk and a disc include a compact disc (CD), a laser disc, a disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray.
  • Optical discs in which discs are usually magnetically replicated, while discs use lasers to optically replicate data. Combinations of the above should also be included within the protection hierarchy of computer readable media.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte à un procédé adapté pour transmettre des messages. Le procédé selon l'invention consiste : à recevoir un message de notification de données de service supplémentaires non structurées (USSD) transmis par un enregistreur de localisation nominal (HLR), le message de notification USSD contenant l'identifiant d'un terminal qui réside dans un réseau d'évolution à long terme (LTE); à convertir le message de notification USSD en un ou plusieurs messages d'un service de messages courts (SMS); à transmettre un message de radiomessagerie au terminal sur la base de l'identifiant du terminal; et, après avoir reçu un message de réponse au message de radiomessagerie transmis par le terminal, à transmettre le ou les messages SMS au terminal via une interface de support de passerelle dans l'espace (SG). La présente invention se rapporte d'autre part à un dispositif adapté pour transmettre des messages. L'invention est apte à résoudre le problème lié au fait que le terminal qui réside dans le réseau LTE transmet des messages fréquemment dans un mode USSD et que, par conséquent, un repli en mode circuit (CSFB) se produit fréquemment. De cette manière, le retard de temps associé au moment où le terminal se replie, et le retard de temps associé au moment où le terminal retourne sur le réseau LTE peuvent être réduits, et le gaspillage des ressources de l'interface radio peut également être réduit.
PCT/CN2013/085225 2012-12-28 2013-10-15 Procédé et dispositif pour la transmission de messages WO2014101530A1 (fr)

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