CN104994486B - A kind of point-to-point note receiving/transmission method and system - Google Patents

Abstract

The invention discloses a method and system for sending and receiving point-to-point short messages. SMS uplink message, obtain the signaling gateway address of the receiver's home area, determine the SMS downlink message, and encapsulate the SMS downlink message into a general-format data packet; the centralized dispatching center sends the general-format data packet carrying the SMS downlink message to the receiver's home area The signaling gateway in the receiver's home area sends the SMS downlink message carried in the general format data packet to the receiver. The method and system for sending and receiving point-to-point short messages disclosed by the present invention can solve the problems in the prior art such as waste of resources, poor interoperability, and high number of signaling transfers caused by the combined establishment of signaling gateways and dispatching centers in various regional short message centers.

Description

Method and system for sending and receiving point-to-point short messages

technical field

The invention relates to the field of short message communication, in particular to a method and system for sending and receiving point-to-point short messages.

Background technique

In the prior art, each province deploys a signaling gateway and a dispatch center in the SMS center at the same time, and the signaling gateway is responsible for processing the communication between the SMS center and the Mobile Switch Center (MSC, Mobile Switch Center) and the Home Location Register (HLR, HomeLocation Register). Signaling interaction, and complete the signaling access and conversion functions necessary for information interaction between the mobile station (MS, Mobile Station) and the SMS center. The dispatching center is responsible for dispatching short messages and storing and forwarding short messages, responsible for business authentication, billing, and providing external interfaces.

FIG. 1 is a schematic diagram of sending and receiving point-to-point short messages in the prior art. As shown in Figure 1, SMS centers are deployed in different provinces. When a user in province A (sender) sends a short message to a user in province B (receiver), the process of sending and receiving point-to-point short messages is divided into two processes: uplink and downlink. Wherein, the direction of the arrow in FIG. 1 is a flow diagram of the process of sending and receiving short messages.

During the uplink process of short messages, the sender submits the uplink short message to the signaling gateway of province A through the MSC/visit location register (VLR, Visit Location Register) of province A, and the signaling gateway of province A completes the signaling processing and converts the uplink short message into private The information of the agreement is submitted to the dispatching center of the short message center of province A for business processing.

During the downlink process of short messages, after the dispatching center of province A completes the business processing, it transfers the downlink short messages to the signaling gateway of province A, and starts the short message sending process. The signaling gateway of province A routes to the HLR of the province to which the receiver belongs (province B) to query the receiver through the global name of the signaling network (GT, global title) according to the mobile subscriber code (MSISDN, MobileSubscriber International ISDN/PSTN number) of the receiver The current MSC/VLR, the HLR in province B returns the current MSC number and location information of the receiver, and the signaling gateway in province A sends the downlink SMS to the receiver through the MSC in province B according to the routing information returned by the HLR in province B.

In the prior art, the existing SMS center of the operator adopts a provincial deployment mode, and each province has one or more sets of SMS centers, and the signaling gateway and the dispatching center of the SMS center are jointly established. The existing solutions have the following disadvantages: first, the short message traffic in some provinces or regions is low, which will lead to low utilization rates of operators deploying independent short message centers in these regions, resulting in waste of resources and increased operator costs; 2. The signaling gateway of the SMS center and the dispatching center use a private protocol to transmit messages, causing the signaling gateways and dispatching centers of different manufacturers to be unable to communicate with each other; The signaling gateway of the sender, from which the signaling gateway of the sender queries the route to the HLR of the province where the receiver belongs through the signaling network, resulting in the need for multiple signaling transfers.

Contents of the invention

In order to solve the above technical problems, the present invention provides a method and system for sending and receiving point-to-point short messages, which are used to solve the waste of resources, poor interoperability and signaling transfer in the prior art due to the joint establishment of signaling gateways and dispatching centers in various regional short message centers. Problems such as high number of calls.

In order to achieve the above-mentioned technical purpose, the present invention provides a method for sending and receiving point-to-point short messages, including: the centralized dispatching center receives a general-format data packet carrying short message uplink messages sent by the signaling gateway in the sender's home area, wherein the short message uplink messages are sent by The sender sends to the signaling gateway of the sender's home area; the centralized dispatching center obtains the address of the signaling gateway of the receiver's home area according to the SMS uplink message obtained by parsing the general format data packet, and determines the SMS downlink message , and encapsulate the short message downlink message into a general format data packet; the centralized dispatching center sends the general format data packet carrying the short message downlink message to the signaling gateway of the receiver's home area, and the signaling gateway of the receiver's home area transmits the Send the short message downlink message carried by the general format data packet to the receiver.

Further, the short message uplink message includes a message identifier, short message content, MSISDN of the sender, MSISDN of the receiver, and a short message center number corresponding to a signaling gateway in the sender's home area.

Further, the short message downlink message includes a message identifier, content of the short message, MSISDN of the sender, and MSISDN of the receiver.

Further, before the centralized dispatching center receives the general-format data packet carrying the SMS uplink message sent by the signaling gateway in the sender's home area, it also includes:

The centralized dispatching center stores the mapping relationship table of the MSISDN and the address of the signaling gateway;

The centralized dispatching center obtains the address of the signaling gateway of the receiver's home area according to the SMS uplink message obtained by parsing the general format data packet, including: the centralized dispatching center parses the received general format data packet to obtain the short message uplink message message, obtain the MSISDN of the recipient from the uplink message of the short message, and refer to the mapping relationship table between the MSISDN and the address of the signaling gateway to determine the address of the signaling gateway in the area to which the recipient belongs.

Further, the general format data packet is a general format Internet Protocol (IP, Internet Protocol) data packet.

The present invention also provides a point-to-point short message sending and receiving system, which is set in a centralized dispatching center and includes: a receiving module for receiving a general-format data packet carrying a short message uplink message sent by a signaling gateway in the sender's home area, wherein the short message The uplink message is sent by the sender to the signaling gateway of the sender's home area; the analysis processing module is used to obtain the address of the signaling gateway of the receiver's home area according to the short message uplink message obtained by parsing the general format data packet, Determine the short message downlink message, and encapsulate the short message downlink message into a general format data packet; the sending module is used to send the general format data packet carrying the short message downlink message to the signaling gateway of the receiver's home area, through the signaling gateway of the receiver's home area Instructing the gateway to send the short message downlink message carried by the common format data packet to the receiver.

Further, the uplink message of the short message includes the message identifier, the content of the short message, the MSISDN of the sender, the MSISDN of the receiver, and the number of the short message center corresponding to the signaling gateway of the sender's home area.

Further, the short message downlink message includes a message identifier, content of the short message, MSISDN of the sender, and MSISDN of the receiver.

Further, the above system also includes: a storage module, configured to store a mapping relationship table between the MSISDN and the address of the signaling gateway,

The parsing processing module is used to obtain the address of the signaling gateway of the receiver's home area according to the SMS uplink message obtained by parsing the general format data packet, including: parsing the received general format data packet to obtain the SMS uplink message, Obtaining the MSISDN of the receiver from the uplink message of the short message, referring to the mapping relationship table between the MSISDN and the address of the signaling gateway, and determining the address of the signaling gateway in the area to which the receiver belongs.

Further, the common format data packet is a common format IP data packet.

In the present invention, the centralized dispatching center receives the general format data packet carrying the short message uplink message sent by the signaling gateway of the sender's home area, wherein the short message uplink message is sent by the sender to the signaling gateway of the sender's home area; centralized scheduling The center obtains the address of the signaling gateway in the area to which the receiver belongs according to the uplink message of the SMS obtained by analyzing the data packet in the common format, determines the downlink message of the SMS, and encapsulates the downlink message of the SMS into a data packet in the general format; the centralized dispatching center sends the downlink message carrying the SMS The common format data packet is sent to the signaling gateway of the receiver's home area, and the SMS downlink message carried by the common format data package is sent to the receiver through the signaling gateway of the receiver's home area. In this way, the operating and maintenance costs are reduced by centralizing the construction of the dispatching centers deployed in a distributed manner. In addition, the centralized dispatching center and the signaling gateway adopt a common format data packet to realize message interaction, thus solving the problem in the prior art that the signaling gateways and dispatching centers of different manufacturers cannot be interconnected. Moreover, in the process of sending short messages, the centralized dispatching center directly forwards the short messages to the signaling gateway in the receiver's home area, and the signaling gateway in the receiver's home area goes to the local HLR to inquire about the route, thereby reducing the burden of sending short messages. Number of transfers.

Description of drawings

Fig. 1 is the schematic diagram of sending and receiving of point-to-point short messages in the prior art;

Fig. 2 is the flowchart of the method for sending and receiving point-to-point short messages provided by the embodiment of the present invention;

FIG. 3 is a schematic diagram of sending and receiving point-to-point short messages provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of an IP data packet in a general format provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of the format of the options in Fig. 4;

FIG. 6 is a schematic diagram of a point-to-point short message sending and receiving system provided by an embodiment of the present invention.

Detailed ways

The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Fig. 2 is a flowchart of a method for sending and receiving a point-to-point short message provided by an embodiment of the present invention. As shown in Figure 2, the point-to-point short message sending and receiving method provided by the embodiment of the present invention includes the following steps:

Step 11: The centralized dispatching center receives the common-format data packet carrying the SMS uplink message sent by the signaling gateway in the sender's home area. Wherein, the short message uplink message is sent by the sender to the signaling gateway in the area to which the sender belongs.

Herein, the uplink message of the short message includes a message identifier (ID), content of the short message, MSISDN of the sender, MSISDN of the receiver, and a short message center number corresponding to the signaling gateway of the sender's home area.

Step 12: The centralized dispatching center obtains the address of the signaling gateway in the area to which the receiver belongs according to the uplink message of the SMS obtained by parsing the data packet in the general format, determines the downlink message of the SMS, and encapsulates the downlink message of the SMS into a data packet in the general format.

Wherein, the downlink message of the short message includes the message identifier, the content of the short message, the MSISDN of the sender, and the MSISDN of the receiver.

In an embodiment, before step 11, the method further includes: the centralized dispatching center stores a mapping relationship table between the MSISDN and the address of the signaling gateway. At this point, step 12 includes: the centralized dispatching center parses the received general-format data packet to obtain an uplink SMS message, obtains the receiver's MSISDN from the SMS uplink message, and determines the receiver's attribution with reference to the mapping relationship table between the MSISDN and the address of the signaling gateway. The address of the zone's signaling gateway.

Step 13: The centralized dispatching center sends the common-format data packet carrying the SMS downlink message to the signaling gateway of the recipient's home area, and sends the SMS downlink message carried by the general-format data packet to the receiver through the signaling gateway of the receiver's home area.

Wherein, the general format data packet is a general format Internet Protocol (IP, Internet Protocol) data packet.

FIG. 3 is a schematic diagram of point-to-point short message sending and receiving provided by an embodiment of the present invention. As shown in Figure 3, when a user in province A (sender) sends a short message to a user in province B (receiver), the following steps are included:

Step S1: The sender sends the SMS uplink message to the MSC/VLR in province A according to the SMS center number corresponding to the signaling gateway in the sender's home area. Specifically, the universal integrated circuit card (UICC, Universal Integrated Circuit Card) of the sender's terminal stores the SMS center number of the sender's home area. The sender terminal reads out the SMS center number from the UICC, and sends the SMS uplink message to the MSC/VLR in the home area (ie province A) according to the SMS center number.

Step S2: The MSC/VLR in province A submits the uplink SMS message to the signaling gateway of province A.

Step S3: After finishing the signaling processing, the signaling gateway of province A forwards the uplink message of the short message to the centralized dispatching center through the Internet Protocol (IP, Internet Protocol) bearer network with a common protocol.

Specifically, after completing the signaling processing, the signaling gateway of province A encapsulates the information contained in the uplink SMS message into the corresponding fields of the IP data packet in common format, and forwards the IP data packet in common format carrying the uplink SMS message to the centralized dispatching center.

Here, FIG. 4 is a schematic diagram of an IP data packet in a common format provided by an embodiment of the present invention. As shown in Figure 4, the IP packet includes, for example, version (referring to the version of the IP protocol), header length, differentiated services, total length, identification, flag, slice offset, time-to-live, protocol, header checksum, source address, purpose address, options, padding and data.

FIG. 5 is a schematic diagram of the format of the options in FIG. 4 . Wherein, the length of the option field is variable. Options include, for example, option code, option type, option length, option content, and padding. In this embodiment, the messages exchanged between the regional signaling gateways and the centralized dispatching center are carried in the option field for transmission. For example, the information contained in the SMS uplink message is encapsulated in the option field. The regional signaling gateways and the centralized dispatching center analyze the IP data packets according to the common protocol, obtain the content of the option field, and obtain the corresponding information. However, the present invention is not limited thereto. In other embodiments, the messages exchanged between the regional signaling gateways and the centralized dispatching center may also be carried in the data field for transmission.

Here, when the centralized dispatching center receives the general-format IP data packet carrying the SMS uplink message sent by the signaling gateway of A province, it will send the general-format IP data packet carrying the SMS uplink message response to the A province signaling gateway. Wherein, the uplink message of the short message includes, for example, a message identifier (ID), content of the short message, the MSISDN of the sender, the MSISDN of the receiver, and the SMS center number corresponding to the signaling gateway of the sender's home area. The short message uplink message response includes, for example, a message ID, a success identifier or an error identifier.

Step S4: The centralized dispatching center analyzes and obtains the uplink message of the short message from the received IP data packet in the general format, and after completing the business processing of the short message (such as authentication, billing, priority, etc.), determines the downlink message of the short message, and sends the short message downlink The message is encapsulated into an IP data packet in a common format. At the same time, by searching for the address of the signaling gateway in the area to which the recipient belongs, the encapsulated IP data packet is forwarded to the signaling gateway in the area to which the recipient belongs (that is, the signaling gateway in province B). ).

Here, when the signaling gateway of province B receives the general-format IP data packet carrying the SMS downlink message sent by the centralized dispatching center, it will send the general-format IP data packet carrying the SMS downlink message response to the centralized dispatching center.

Here, the SMS downlink message includes, for example, message ID, SMS content, MSISDN of the sender, MSISDN of the receiver, SMS priority, SMS center number corresponding to the signaling gateway in the sender's home area, whether there is a follow-up SMS identifier, etc. The short message downlink message response includes, for example, a message ID, a success identifier or an error identifier.

Here, the centralized dispatching center stores a mapping relationship table (such as Table 1) between the MSISDN and the address of the signaling gateway.

MSISDN number segment 1 IP address of the signaling gateway in the home area 1 Is the mapping relationship active MSISDN number segment 2 IP address of the signaling gateway in the home area 2 Is the mapping relationship active MSISDN3 IP address of the signaling gateway in the home area 3 Is the mapping relationship active MSISDN4 IP address of the signaling gateway in the home area 4 Is the mapping relationship active …

Table 1

There are two types of mapping relationships recorded in Table 1, one is to query the IP address of the signaling gateway of the corresponding home area according to the MSISDN number segment, and the other is to query the IP address of the signaling gateway of the home area according to the specific MSISDN. The present invention is not limited thereto. In addition, a function similar to a blacklist can be realized by setting "whether the mapping relationship is active".

Specifically, the centralized dispatching center obtains the recipient's MSISDN according to the SMS uplink message, and obtains the address of the signaling gateway in the area to which the recipient belongs (such as the address of the signaling gateway of province B) by querying Table 1. Message and completed SMS business processing, determine the content of the SMS downlink message, and encapsulate the SMS downlink message into an IP data packet in a common format, and send the IP data packet directly to the signaling gateway of province B, and the signaling gateway of province B completes the subsequent SMS Delivery process.

Step S5: The signaling gateway in province B queries the MSC/VLR where the recipient is currently located to the HLR in province B, and the HLR in province B returns the current MSC number and location information of the recipient.

Step S6: The signaling gateway of province B sends an SMS downlink message to the MSC in province B according to the routing information returned by the HLR of province B.

Step S7: The MSC in province B sends the SMS downlink message to the recipient.

FIG. 6 is a schematic diagram of a point-to-point short message sending and receiving system provided by an embodiment of the present invention. As shown in Figure 6, the point-to-point short message sending and receiving system provided by the embodiment of the present invention is set in the centralized dispatching center, including: a receiving module, which is used to receive the general format data packet carrying the short message uplink message sent by the signaling gateway in the sender's home area , wherein, the short message uplink message is sent by the sender to the signaling gateway of the sender's home area; the analysis processing module is used to obtain the signaling gateway of the receiver's home area according to the short message uplink message obtained by parsing the general format data packet The address is to determine the downlink message of the short message, and encapsulate the downlink message of the short message into a general format data packet; the sending module is used to send the general format data packet carrying the downlink message of the short message to the signaling gateway of the receiver's home area, and pass the receiver's home area The signaling gateway sends the SMS downlink message carried by the common format data packet to the receiver.

Wherein, the uplink message of the short message includes the message identifier, the content of the short message, the MSISDN of the sender, the MSISDN of the receiver, and the number of the short message center corresponding to the signaling gateway in the area to which the sender belongs.

Wherein, the downlink message of the short message includes the message identifier, the content of the short message, the MSISDN of the sender, and the MSISDN of the receiver.

In an embodiment, the above system further includes: a storage module, configured to store a mapping table of the MSISDN and the address of the signaling gateway. The parsing processing module is used to obtain the address of the signaling gateway of the receiver's home area according to the SMS uplink message obtained by parsing the general format data packet, including: parsing the received general format data packet to obtain the SMS uplink message, from the The short message uplink message obtains the MSISDN of the recipient, and refers to the mapping relationship table between the MSISDN and the address of the signaling gateway to determine the address of the signaling gateway in the area to which the recipient belongs.

Wherein, the common format data packet is an IP data packet of common format.

In addition, the specific processing flow of the above system is the same as that of the above method, so it will not be repeated here.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. The present invention is not limited by the above-mentioned embodiments, and what described in the above-mentioned embodiments and the description only illustrates the principle of the present invention, and without departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, these changes All modifications and improvements are within the scope of the claimed invention.

Claims (8)

1. A method for sending and receiving point-to-point short messages, characterized in that, comprising: The centralized dispatching center stores the mapping relation table of the address of MSISDN and signaling gateway; The centralized dispatching center receives the general-format data packet carrying the SMS uplink message sent by the signaling gateway of the sender's home area, wherein the SMS uplink message is sent by the sender to the signaling gateway of the sender's home area; The centralized dispatching center acquires the address of the signaling gateway of the receiver's home area according to the uplink message of the short message obtained by parsing the data packet of the general format, determines the downlink message of the short message, and encapsulates the downlink message of the short message into a data packet of the general format; The centralized dispatching center sends the general-format data packet carrying the short message downlink message to the signaling gateway of the recipient's home area, and sends the short message downlink message carried by the general-purpose data packet to the signaling gateway of the receiver's home area. receiver; Wherein, the centralized dispatching center acquires the address of the signaling gateway of the receiver's home area according to the SMS uplink message obtained by parsing the general format data packet, including: the centralized dispatch center parses the received general format data packet to obtain In the uplink message of the short message, the MSISDN of the recipient is obtained from the uplink message of the short message, and the address of the signaling gateway in the area to which the recipient belongs is determined by referring to the mapping relationship table between the MSISDN and the address of the signaling gateway. 2. The method according to claim 1, wherein: the uplink message of the short message includes message identification, short message content, the mobile subscriber code MSISDN of the sender, the MSISDN of the receiver, the signaling gateway corresponding to the sender's home area SMS center number. 3. The method according to claim 1, wherein the short message downlink message includes a message identifier, content of the short message, MSISDN of the sender, and MSISDN of the receiver. 4. The method according to claim 1, characterized in that, the general format data packet is a general format Internet protocol IP data packet. 5. A point-to-point short message sending and receiving system, which is arranged in a centralized dispatching center, is characterized in that, comprising: The storage module is used to store the mapping relation table of the address of MSISDN and signaling gateway; The receiving module is configured to receive a general-format data packet carrying an uplink SMS message sent by a signaling gateway in the sender's home area, wherein the uplink message is sent by the sender to the signaling gateway in the sender's home area; The parsing and processing module is used to obtain the address of the signaling gateway of the receiver's home area according to the uplink message of the short message obtained by parsing the general format data packet, determine the downlink message of the short message, and encapsulate the downlink message of the short message to the general format data packet; The sending module is used to send the general format data packet carrying the short message downlink message to the signaling gateway of the recipient's home area, and send the short message downlink message carried by the general format data packet to the signaling gateway of the recipient's home area. receiver; Wherein, the parsing processing module is used to obtain the address of the signaling gateway in the area where the receiver belongs according to the SMS uplink message obtained by parsing the general format data packet, including: parsing the received general format data packet to obtain the SMS uplink message message, obtain the MSISDN of the recipient from the uplink message of the short message, and refer to the mapping relationship table between the MSISDN and the address of the signaling gateway to determine the address of the signaling gateway in the area to which the recipient belongs. 6. The system according to claim 5, wherein the uplink message of the short message includes a message identifier, content of the short message, the MSISDN of the sender, the MSISDN of the receiver, and the SMS center number corresponding to the signaling gateway of the sender's home area . 7. The system according to claim 5, wherein the downlink message of the short message includes a message identifier, content of the short message, MSISDN of the sender, and MSISDN of the receiver. 8. The system according to claim 5, wherein the common format data packet is an IP data packet of common format.