CN106792587B - Short message delivery report processing method, MSC and MME - Google Patents

Short message delivery report processing method, MSC and MME Download PDF

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Publication number
CN106792587B
CN106792587B CN201510829008.3A CN201510829008A CN106792587B CN 106792587 B CN106792587 B CN 106792587B CN 201510829008 A CN201510829008 A CN 201510829008A CN 106792587 B CN106792587 B CN 106792587B
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short message
mme
terminal
msc
delivery report
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CN106792587A (en
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陈旭
侯志强
张昊
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The embodiment of the invention discloses a short message delivery report processing method, an MSC (mobile switching center) and an MME (mobility management entity), wherein the short message delivery report processing method comprises the following steps: the method comprises the steps that an MSC determines a first mobile management entity MME registered when a terminal sends a short message according to a short message session message sent by the terminal in the short message session process; the MSC associates the short message session message with the combined position updating flow of the terminal in the short message session process, and determines whether the terminal is changed and registered to a second MME in the short message session process; and when receiving the short message delivery report of the short message session, if the terminal is changed and registered to the second MME, the MSC sends the short message delivery report to the terminal through the second MME.

Description

Short message delivery report processing method, MSC and MME
Technical Field
The invention relates to a synchronization technology in the field of wireless communication, in particular to a short message delivery report processing method, an MSC (mobile switching center) and an MME (mobility management entity).
Background
At present, when a terminal in a second generation mobile communication 2G network sends a short message, the terminal encapsulates the short message in a message of a signaling surface and sends the message to a Mobile Switching Center (MSC), and the MSC forwards the short message to a terminal home Short Message Service Center (SMSC). The short message conversation center sends back a successful response to the MSC after successfully receiving the short message, the MSC sends back the successful response to the terminal, and the interface of the terminal displays that the short message is successfully sent. When a user in the fourth generation mobile communication 4G network resides in a Long Term Evolution (LTE) network to send a short message, the short message is forwarded to an MSC (mobile switching center) in an 2/3G network core network by an LTE (Long term evolution) core network through an SGs (serving gateway server) interface, and then is forwarded to a user home SMSC (short message service center).
If the 4G terminal generates signal drift at the MME boundary (or MME POOL boundary) or the terminal moves to switch or redirect across the MME during the process of sending the short message, the terminal is registered under a new MME. No User Equipment (UE) context exists in the MME before the change registration, and the MME cannot issue the short message delivery report to the terminal after receiving the short message delivery report. This results in a low probability that the terminal successfully receives the short message delivery report sent by the short message session center and indicating that the short message sent by the terminal is successfully received.
Disclosure of Invention
In view of this, embodiments of the present invention are intended to provide a method for processing a short message delivery report, an MSC, and an MME, so as to at least partially solve the problem of low probability of successful receiving of a short message delivery report.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a first aspect of an embodiment of the present invention provides a method for processing a short message delivery report, where the method includes:
the method comprises the steps that an MSC determines a first mobile management entity MME registered when a terminal sends a short message according to a short message session message sent by the terminal in the short message session process;
the MSC associates the short message session message with the combined position updating flow of the terminal in the short message session process, and determines whether the terminal is changed and registered to a second MME in the short message session process;
and when receiving the short message delivery report of the short message session, if the terminal is changed and registered to the second MME, the MSC sends the short message delivery report to the terminal through the second MME.
Based on the foregoing solution, the sending the delivery report of the short message to the terminal through the second MME includes:
the MSC sends a paging message to the second MME;
receiving a paging response fed back by the second MME based on the paging message;
and after receiving the paging response, sending the short message delivery report to the terminal through the second MME.
Based on the foregoing solution, the MSC associates the short message session message with the combined location update procedure of the terminal in the short message session process, and determines whether the terminal is changed and registered to the second MME in the short message session process, including:
and if the short message delivery report is received, the terminal updates the joint position, waits for the completion of the joint position updating process, and determines whether the MME registered by the terminal is changed in the short message session process after the joint position updating is completed.
Based on the foregoing solution, the method further includes:
and caching the short message delivery report before sending the delivery report if the combined position updating process is not finished.
Based on the foregoing solution, the method further includes:
and if the terminal is not registered to the second MME, sending the short message delivery report to the terminal through the first MME.
A second aspect of the embodiments of the present invention provides a method for processing a short message delivery report, where the method includes:
the second MME sends a joint location update notification to a Mobile Switching Center (MSC) based on a joint location update request of the terminal; the joint location update notification is used for notifying the MSC that the terminal has been changed from being registered at the first Mobility Management Entity (MME) to being registered at the second MME;
receiving a short message delivery report sent by the MSC;
and sending the short message delivery report to the terminal.
Based on the foregoing solution, the method further includes:
the second MME receives a paging message sent by the MSC;
sending a paging response to the MSC;
the receiving of the short message delivery report sent by the MSC includes:
and receiving the short message delivery report sent by the MSC after receiving the paging response.
Based on the foregoing scheme, the sending, by the MME, a paging response to the MSC includes:
inquiring the signaling connection state of the terminal;
and if the signaling connection state indicates that the terminal has signaling connection currently, sending the paging response to the MSC.
Based on the foregoing scheme, the sending a paging response to the MSC further includes:
if the signaling connection state indicates that the terminal has no signaling connection currently, sending a page to the terminal;
and after receiving the paging reply of the terminal, sending the paging response to the MSC.
In a third aspect of the embodiments of the present invention, a mobile switching center MSC is provided, where the MSC includes
A first determining unit, configured to determine, by the MSC, a first mobility management entity MME registered when the terminal sends a short message according to a short message session message sent by the terminal in a short message session process;
a second determining unit, configured to associate, by the MSC, the short message session message with a combined location update procedure of the terminal in the short message session process, and determine whether the terminal is changed and registered to a second MME in the short message session process;
and the first sending unit is used for sending the short message delivery report to the terminal through the second MME if the terminal is changed and registered to the second MME when the MSC receives the short message delivery report of the short message session.
Based on the foregoing scheme, the first sending unit is specifically configured to send a paging message to the second MME; receiving a paging response fed back by the second MME based on the paging message; and after receiving the paging response, sending the short message delivery report to the terminal through the second MME.
Based on the foregoing solution, the second determining unit is specifically configured to, if the short message delivery report is received, wait for the joint location update procedure to be completed when the terminal is performing the joint location update, and determine whether an MME registered by the terminal is changed in the short message session after the joint location update is completed. 13. The MSC of claim 12,
the MSC further comprises:
and the cache unit is used for caching the short message delivery report before sending the delivery report if the combined position updating process is not finished.
Based on the foregoing solution, the first sending unit is further configured to send the short message delivery report to the terminal through the first MME if the terminal is not registered in the second MME.
A fourth aspect of the present embodiment provides a mobility management entity MME, where the MME is a second MME; the second MME comprises:
a second sending unit, configured to send a joint location update notification to a mobile switching center MSC based on a joint location update request of the terminal; the joint location update notification is used for notifying the MSC that the terminal has been changed from being registered at the first Mobility Management Entity (MME) to being registered at the second MME;
a receiving unit, configured to receive a short message delivery report sent by the MSC;
and the third sending unit is used for sending the short message delivery report to the terminal.
Based on the foregoing scheme, the receiving unit is configured to receive a paging message sent by the MSC;
the second sending unit is further configured to send a paging response to the MSC;
the receiving unit is further configured to receive the short message delivery report sent by the MSC after receiving the paging response.
Based on the foregoing solution, the second sending unit is specifically configured to query a signaling connection state of the terminal, and send the paging response to the MSC if the signaling connection state indicates that the terminal has signaling connection currently.
Based on the foregoing solution, the third sending unit is further configured to send a page to the terminal if the signaling connection state indicates that the terminal does not have signaling connection currently;
the second sending unit is further configured to send the paging response to the MSC after receiving the paging reply of the terminal.
The short message delivery report processing method, the MSC and the MME provided by the embodiment of the invention can determine the first MME registered by the terminal in the short message session process according to the short message session message, associate the short message session message with the joint position updating process and determine whether the joint position of the terminal is updated and then is registered to the second MME. If the message delivery report is changed and registered to the second MME, the message delivery report is sent through the second MME subsequently, so that the phenomenon that the first MME cannot be sent to the terminal successfully due to the fact that the message delivery report is sent through the first MME and the terminal cannot receive the message delivery report successfully is avoided, and the probability that the message delivery report is received successfully by the terminal is improved.
Drawings
Fig. 1 is a schematic flow chart of a first method for processing a short message delivery report according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a process for sending a short message delivery report according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a second method for processing a short message delivery report according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a third method for processing a short message delivery report according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an MSC according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an MME according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a fourth method for processing a short message delivery report according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a method for processing a short message delivery report, where the method includes:
step S110: the method comprises the steps that an MSC determines a first mobile management entity MME registered when a terminal sends a short message according to a short message session message sent by the terminal in the short message session process;
step S120: the MSC associates the short message session message with the combined position updating flow of the terminal in the short message session process, and determines whether the terminal is changed and registered to a second MME in the short message session process;
step S130: and when receiving the short message delivery report of the short message session, if the terminal is changed and registered to the second MME, the MSC sends the short message delivery report to the terminal through the second MME.
The method of the embodiment of the invention can be applied to a Mobile Switching Center (MSC). The MSC can send a Mobile Originated (MO) short message sent by the terminal to a Short Message Service Center (SMSC); after receiving the MO short message, the short message service center SMSC sends a short message delivery report to the MSC, and the MSC sends the delivery report to the terminal through the MME.
In step S110, the short message session message generally includes a user identifier, an MME identifier for forwarding the MO short message, and an MO flow state. The MME forwarded the MO short message is the registered MME that sends the MO short message to the terminal in this embodiment before performing the joint location update. The MO flow scheme generally includes the following steps: the states of receiving CP-Data or RP-Data sent by the terminal, sending back CP-Ack to the terminal and sending MAP-encapsulated RP-Data to the short message session center SMSC. The CP-Data or RP-Data is the short message sent by the terminal. The CP-Ack is the information that the MSC sends the confirmation to the terminal that the MO short message is sent to the SMSC based on the CP-Data or the RP-Data. The user identifier here may typically include a communication identifier of the terminal, such as a mobile phone number.
In the short message session process, the terminal may cause the joint location update due to operations such as redirection or cell switching. When the terminal performs the joint location update, the MME to which the terminal is registered may change. In this embodiment, in step S110, the MME registered by the terminal in sending the short message session message is the first MME, and if the MME registered by the terminal in the short message session changes, the MME after the change is referred to as the second MME in this embodiment. Here, the first MME and the second MME are different MMEs.
Associating the short message session message with the joint location update procedure of the terminal in step S120 may refer to: performing information association on the short message session message and the information acquired in the joint position updating process to determine whether the joint position updating causes the MME registered by the terminal to generate informationAnd (6) changing. Specifically, the step S120 may include: SG used according to the short message conversation messageSInterface determines the first MME according to SG used in the joint location update processSWhether the MME corresponding to the interface is the first MME or not, if the terminal uses SG in the process of carrying out the combined position updatingSAnd if the MME corresponding to the interface is not the first MME any more, determining that the terminal is changed and registered to a second MME in the short message conversation process. Here, the short message session message is associated with the joint location update procedure, and for example, if the terminal performs joint location update and changes to the second MME, the MSC receives a notification sent by the second MME. In this way, the MSC may form a notification to obtain information such as the identifier of the MME currently registered by the terminal during the transmission of the joint location update, and compare the identifier of the MME currently registered with the identifier of the first MME recorded in step S110 to determine whether the terminal is changed to be registered in the second MME.
In order to avoid the phenomenon that the terminal cannot receive the short message delivery report and considers that the short message is not successfully sent because the MSC sends the short message delivery report through the first MME, in step S130 in this embodiment, after determining that the terminal is changed and registered to the second MME, the short message delivery report is sent to the terminal through the second MME.
As shown in fig. 2, in a further modification of this embodiment, the step S130 may include:
step S131: the MSC sends a paging message to the second MME;
step S132: receiving a paging response fed back by the second MME based on the paging message;
step S133: and after receiving the paging response, sending the short message delivery report to the terminal through the second MME.
In this embodiment, it is avoided that the second MME rejects to receive the short message delivery report of the MSC and sends the short message delivery report to the terminal because the second MME does not participate in the short message transmission between the terminal and the MSC. In this embodiment, the MSC sends a paging message to the second MME. Specifically, for example, the MSC sends the paging message through the SGs interface with the second MME. And after the second MME receives the paging message through the SGs interface, the MSC is considered to be ready to issue the short message to the terminal, and the short message issuing process is executed subsequently. At this time, the MSC will not refuse to receive the short message delivery report sent by the MSC, and finally forward the short message delivery report to the corresponding terminal.
In this embodiment, in order to ensure that the second MME does not reject the short message delivery report, in this embodiment, after receiving the paging response sent by the second MME, the MSC sends the short message delivery report to the terminal through the second MME; therefore, the phenomenon that the second MME fails to send the short message delivery report before the short message delivery report does not receive the paging message and does not reply the paging response can be avoided.
Further, the step S120 may include:
and if the short message delivery report is received, the terminal updates the joint position, waits for the completion of the joint position updating process, and determines whether the MME registered by the terminal is changed in the short message session process after the joint position updating is completed.
Certainly, the update of the joint location may occur at any time after the terminal sends the MO short message, and obviously, the update of the joint location may occur when the MSC receives the short message delivery report from the SMSC, and at this time, if the MSC immediately sends the short message delivery report, the terminal may also fail to normally receive the short message delivery report finally, and in this embodiment, the MSC determines whether the MME registered before and after the terminal completes the update of the joint location is changed after waiting for the update of the joint location.
In this embodiment, if the terminal is performing the combined location update before the MSC receives the short message delivery report sent by the short message callback center, but the combined location update is not yet completed, in this embodiment, the MSC caches the short message delivery report. In this way, after the terminal completes the joint location update and is changed and registered to the second MME in step S130, the second MME is used to send the short message delivery report, so that it is obvious that the phenomenon that the short message delivery report is not successfully issued when the terminal is performing the joint location update can be avoided.
As a further refinement of the previous embodiment, the method further comprises:
and caching the short message delivery report before sending the delivery report if the combined position updating process is not finished. In this embodiment, the method further includes caching the short message delivery report, so as to avoid the phenomenon that the short message delivery report is lost, which results in that the terminal cannot successfully receive the short message delivery report.
Of course, in this embodiment, the method further includes: and if the terminal is not registered to the second MME, sending the short message delivery report to the terminal through the first MME. Therefore, the terminal is ensured to receive the short message delivery report at least through one MME of the first MME and the second MME, and the success rate of receiving the short message delivery report by the terminal is improved.
Example two:
as shown in fig. 3, the present embodiment provides a method for processing a short message delivery report, where the method includes:
step S210: the second MME sends a joint location update notification to a Mobile Switching Center (MSC) based on a joint location update request of the terminal; the joint location update notification is used for notifying the MSC that the terminal has been changed from being registered at the first Mobility Management Entity (MME) to being registered at the second MME;
step S220: receiving a short message delivery report sent by the MSC;
step S230: and sending the short message delivery report to the terminal.
The method for processing the short message delivery report according to this embodiment may be a processing method applied to the second MME. In this embodiment, the second MME sends a joint location update notification to the MSC based on the joint location update request of the terminal, so that the MSC knows that the terminal performs joint location update and knows the second MME currently registered by the terminal.
If the terminal uses the first MME to send the short message before changing and registering to the second MME, in this way, the second MME will receive the short message delivery report sent by the MSC. In step S230, the short message delivery report is sent to the terminal, so that the phenomenon that the terminal cannot successfully receive the short message delivery report due to the fact that the MSC also sends the short message delivery report through the first MME can be avoided.
As shown in fig. 4, further, the method further includes:
step S221: the second MEE receives the paging message sent by the MSC;
step S222: sending a paging response to the MSC;
the step S230 may include: and receiving the short message delivery report sent by the MSC after the paging response is received.
In this embodiment, the second MME receives a paging message sent by the MSC, and after the second MME receives the paging message through the SGs interface between the MME and the MSC, the MSC is considered to need to issue a short message to the terminal and send a paging response to the MSC, which is equal to informing the MSC that the second MME will receive a short message delivery report sent by the MSC.
The sms message delivery report received in step S230 is also sent after the MSC confirms that the paging response sent by the second MME is received, so that the second MME does not reject to receive the sms message delivery report.
As a further improvement of this embodiment, the step S222 may include:
inquiring the signaling connection state of the terminal;
and if the signaling connection state indicates that the terminal has signaling connection currently, sending the paging response to the MSC.
And the phenomenon that the short message delivery report is unsuccessfully received due to the fact that the terminal is not in the signaling connection state is avoided. Therefore, in this embodiment, the step S222 firstly queries the signaling connection status of the terminal, and sends the paging response to the MSC when the terminal has signaling connection.
The step S222 further includes:
if the signaling connection state indicates that the terminal has no signaling connection currently, sending a page to the terminal;
and after receiving the paging reply of the terminal, sending the paging response to the MSC.
In order to ensure that the terminal successfully receives the short message delivery report, in this embodiment, if the terminal does not have signaling connection currently, a page is sent to the terminal, and after the terminal performs a page reply, it indicates that the terminal has established signaling connection currently, and then sends a page response to the MSC.
The embodiment provides a method for processing a short message delivery report, wherein a second MME after a combined location update receives a short message delivery report sent by an MSC and issues the short message delivery report to a terminal. Therefore, the phenomenon that the terminal cannot successfully receive the short message delivery report after the terminal sends the short message before the joint position is updated and the registered MME is changed after the joint position is updated can be avoided.
Example three:
as shown in fig. 5, the present embodiment provides a mobile switching center MSC, which includes
A first determining unit 110, configured to determine, by the MSC, a first mobility management entity MME registered when the terminal sends a short message according to a short message session message sent by the terminal in a short message session process;
a second determining unit 120, configured to associate, by the MSC, the short message session message with the combined location update procedure of the terminal in the short message session process, and determine whether the terminal is changed and registered to a second MME in the short message session process;
a first sending unit 130, configured to send, when the MSC receives the short message delivery report of the short message session, the short message delivery report to the terminal through the second MME if the terminal is changed and registered to the second MME.
The MSC of this embodiment can be a device for implementing the short message delivery report in the first embodiment of the method. The first determining unit 110 and the second determining unit 120 may include a processor or a processing circuit. The processor may include a central processing unit, a microprocessor, a digital signal processor, an application processor, or a processing architecture that may be transformed into a processor. The processing circuit may comprise an application specific integrated circuit. The processor may implement the above-described functions by executing executable code. The first determining unit 110 and the second determining unit 120 may correspond to different processors, respectively, or may be integrated to correspond to the same processor. When the integration corresponds to the same processor, the processor may perform the functions of the first and second determining units 110 and 120, respectively, in a time-division manner or in a concurrent thread manner.
The first sending unit may include various communication interfaces, for example, an SGs interface between an MSC and an MME, and may perform information interaction with the first MME and the second MME, specifically, the short message delivery report is sent to the second MME, and the second MME issues the short message delivery report to a terminal.
The MSC of the embodiment is used for issuing the short message delivery report, so that the probability of successfully receiving the short message delivery report by the terminal can be improved, and the MSC is particularly suitable for an application scene that the terminal performs cross-MME combined position updating after sending the short message.
In this embodiment, in order to ensure that the second MME does not reject to receive the short message delivery report, in this embodiment, the first sending unit 130 is specifically configured to send a paging message to the second MME; receiving a paging response fed back by the second MME based on the paging message; and after receiving the paging response, sending the short message delivery report to the terminal through the second MME.
Therefore, after receiving the paging message, the second MME considers that the MSC needs to issue a message to the terminal, and thus, the second MME does not reject to receive the short message delivery report because the second MME does not participate in the transmission of the short message sent by the terminal before and lacks context.
As a further improvement of this embodiment, the second determining unit 120 is specifically configured to, if the short message delivery report is received, perform the joint location update by the terminal, wait for the joint location update procedure to be completed, and determine whether an MME registered by the terminal is changed in the short message session after the joint location update is completed. Therefore, the phenomenon that the terminal cannot successfully receive the short message delivery report because the terminal immediately sends the short message delivery report after receiving the short message delivery report when the terminal updates the combined position can be avoided.
As a further improvement of this embodiment, the caching unit is configured to cache the short message delivery report before sending the delivery report if the combined location update procedure is not completed. The buffer unit may include various types of buffer media capable of temporarily storing the sms delivery report.
In this embodiment, in order to avoid the stage of performing the joint location update, after receiving the short message delivery report of the short message session center, the short message delivery report is cached; therefore, the buffer unit is provided in this embodiment. The cache unit comprises a cache medium and can store the short message delivery report. In this embodiment, the first sending unit 130 sends the short message delivery report after confirming that the second MME receives the paging message, so that it can be ensured that the second MME does not reject the short message delivery report, thereby improving the sending success rate of the short message delivery report.
Of course, the first sending unit 130 is further configured to send the short message delivery report to the terminal through the first MME if the terminal is not registered in the second MME. In this case, the terminal receives the short message delivery report from at least one of the first MME and the second MME.
Example four:
as shown in fig. 6, the present embodiment provides a mobility management entity MME, where the MME is a second MME; the second MME comprises:
a second sending unit 210, configured to send a joint location update notification to the mobile switching center MSC based on the joint location update request of the terminal; the joint location update notification is used for notifying the MSC that the terminal has been changed from being registered at the first Mobility Management Entity (MME) to being registered at the second MME;
a receiving unit 220, configured to receive a short message delivery report sent by the MSC;
a third sending unit 230, configured to send the short message delivery report to the terminal.
The second MME of this embodiment is a hardware structure capable of implementing the second embodiment of the foregoing method. In this embodiment, the second sending unit 210 is a sending interface for communicating with the MSC, and may include an SGs interface, for example, and can communicate with the MSC. The receiving unit 220 may be a receiving interface capable of communicating with the MSC, and is capable of receiving a short message delivery report forwarded by the MSC. The second transmitting unit 230 may be a communication interface capable of connecting to a terminal. Generally, the second sending unit 230 may include an interface capable of communicating with a base station, and the second MME sends a short message delivery report to the terminal through the base station, for example, sends the short message delivery report to the terminal through an evolved node b eNB.
In short, the second MME in this embodiment is used to send the short message delivery report, so that the probability that the short message delivery report is successfully issued to the terminal can be improved.
Meanwhile, the receiving unit 220 is configured to receive a paging message sent by the MSC;
the second sending unit 210 is further configured to send a paging response to the MSC;
the receiving unit 220 is further configured to receive the short message delivery report sent by the MSC after receiving the paging response.
After receiving the paging message, the second MME confirms that the MSC needs to issue a message to the terminal, and after receiving a short message delivery report issued by the MSC, the third sending unit 230 issues the short message delivery report to the terminal through the base station, thereby ensuring a high probability that the terminal successfully receives the short message delivery report.
The second sending unit 210 is specifically configured to query a signaling connection state of the terminal, and send the paging response to the MSC if the signaling connection state indicates that the terminal has signaling connection currently
The phenomenon that the sending of the short message delivery report is unsuccessful due to the fact that the terminal is in a state without signaling connection currently is avoided. In this embodiment, the signaling connection state of the terminal is first queried, and if the terminal is in signaling connection, a paging response is sent to the MSC, so that a phenomenon that a short message delivery report fails to be sent due to no signaling connection at the terminal by the MSC through the second MME can be avoided.
In addition, the third sending unit 230 is further configured to send a page to the terminal if the signaling connection status indicates that the terminal does not have signaling connection currently;
the second sending unit 210 is further configured to send the paging response to the MSC after receiving the paging reply of the terminal.
In this embodiment, in order to ensure that the terminal successfully receives the short message delivery report in time, if the terminal is in a state without signaling connection, a page is sent to the terminal, and after a page reply of the short message is determined, a page response is sent to the MSC, which is equivalent to switching the terminal from the state without signaling connection to the state with signaling connection. At this time, the MSC sends a short message delivery report, and the second MME forwards the short message delivery report through the base station, so that the successful sending of the short message delivery report can be ensured.
One specific example is provided below in connection with any of the embodiments described above:
as shown in fig. 7, the method for processing a short message delivery report provided by this example includes:
step 1: the terminal sends the MO short message to the MSC by using the 1 st mobile management entity MM 1. Here, the MM1 is an MME registered when the terminal sends an MO short message before performing the joint location update. . The MME1 is the first MME described above.
Step 2: the MSC records the sms session, and according to the sms session record MME1, for example, records the identification information of the MME1, for example, records the sequence number or the geographical location of the MME1, which can distinguish the MME1 from other MMEs. The short message session may include information including a terminal identifier, an MME identifier for forwarding the MO short message, and an MO flow state. MO process state: the state of receiving CP-Data (RP-Data) sent by the terminal, sending back CP-Ack to the terminal, sending MAP encapsulated RP-Data to SMSC, etc.
And 3, step 3: the terminal performs MME handover or redirection to MME 2.
And 4, step 4: after receiving the MME handover or redirection request sent by the terminal, the MME2 sends a location update notification to the MSC.
And 5, step 5: after receiving the location update notification sent by the MM2, the MSC associates the sms session based on the location update notification. In this way, by associating the short message session, the MSC corresponds to information indicating whether or not a short message delivery report of the MO short message is not yet transmitted to the terminal before the MME which changes the registration is confirmed by the terminal. By associating the sms session, the MSC records that the MME currently registered by the user has changed (currently, MME 2).
And 6, step 6: MSC receives SMSC message delivery report, enquires terminal status at SGs interface, if the combined position update status is not completed, caches message delivery report to wait, when the position update is completed, enquires user registered MME to issue.
If the MME is not changed, sending a short message delivery report to the MME 1;
if the MME changes, sending SGs interface paging to the MME2, and sending a short message delivery report after receiving a response. Here, the SGs interface paging is a paging message sent by the MSC to the second MME in the foregoing embodiment.
And 7, step 7: and the MME2 receives the SGs interface paging, judges the signaling connection state of the terminal, and replies a paging response to the paging of the user after receiving the response if the signaling connection state exists, or replies the paging response to the paging of the user if the signaling connection state does not exist.
And 8, step 8: after receiving the paging response of the MME2, the MSC sends a short message delivery report to the MME 2.
Step 9: and the MME2 or the MME1 receives the short message delivery report (downlink transparent transmission message) and issues the short message delivery report.
Step 10: the terminal receives the short message delivery report and prompts the successful sending of the short message in a display or audio mode and the like.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (18)

1. A short message delivery report processing method is characterized by comprising the following steps:
the method comprises the steps that an MSC determines a first mobile management entity MME registered when a terminal sends a short message according to a short message session message sent by the terminal in the short message session process;
the MSC associates the short message session message with the combined position updating flow of the terminal in the short message session process, and determines whether the terminal is changed and registered to a second MME in the short message session process; wherein the first MME and the second MME are different MMEs;
and when receiving the short message delivery report of the short message session, if the terminal is changed and registered to the second MME, the MSC sends the short message delivery report to the terminal through the second MME.
2. The method of claim 1,
the sending the delivery report of the short message to the terminal through the second MME comprises:
the MSC sends a paging message to the second MME;
receiving a paging response fed back by the second MME based on the paging message;
and after receiving the paging response, sending the short message delivery report to the terminal through the second MME.
3. The method of claim 1,
the MSC associates the short message session message with the combined location updating process of the terminal in the short message session process, and determines whether the terminal is changed and registered to a second MME in the short message session process, wherein the method comprises the following steps:
and if the short message delivery report is received, the terminal updates the joint position, waits for the completion of the joint position updating process, and determines whether the MME registered by the terminal is changed in the short message session process after the joint position updating is completed.
4. The method of claim 3,
the method further comprises the following steps:
and caching the short message delivery report before sending the delivery report if the combined position updating process is not finished.
5. The method of claim 1,
the method further comprises the following steps:
and if the terminal is not registered to the second MME, sending the short message delivery report to the terminal through the first MME.
6. A short message delivery report processing method is characterized by comprising the following steps:
the second MME sends a joint location update notification to a Mobile Switching Center (MSC) based on a joint location update request of the terminal; the joint location update notification is used for notifying the MSC that the terminal has been changed from being registered at the first Mobility Management Entity (MME) to being registered at the second MME; wherein the first MME and the second MME are different MMEs;
receiving a short message delivery report sent by the MSC;
and sending the short message delivery report to the terminal.
7. The method of claim 6,
the method further comprises the following steps:
the second MME receives a paging message sent by the MSC;
sending a paging response to the MSC;
the receiving of the short message delivery report sent by the MSC includes:
and receiving the short message delivery report sent by the MSC after receiving the paging response.
8. The method of claim 7,
the MME sends a paging response to the MSC, including:
inquiring the signaling connection state of the terminal;
and if the signaling connection state indicates that the terminal has signaling connection currently, sending the paging response to the MSC.
9. The method according to claim 7 or 8,
the sending the paging response to the MSC further comprises:
if the signaling connection state indicates that the terminal has no signaling connection currently, sending a page to the terminal;
and after receiving the paging reply of the terminal, sending the paging response to the MSC.
10. A Mobile Switching Center (MSC), wherein the MSC comprises
A first determining unit, configured to determine, by the MSC, a first mobility management entity MME registered when the terminal sends a short message according to a short message session message sent by the terminal in a short message session process;
a second determining unit, configured to associate, by the MSC, the short message session message with a combined location update procedure of the terminal in the short message session process, and determine whether the terminal is changed and registered to a second MME in the short message session process; wherein the first MME and the second MME are different MMEs;
and the first sending unit is used for sending the short message delivery report to the terminal through the second MME if the terminal is changed and registered to the second MME when the MSC receives the short message delivery report of the short message session.
11. The MSC of claim 10,
the first sending unit is specifically configured to send a paging message to the second MME; receiving a paging response fed back by the second MME based on the paging message; and after receiving the paging response, sending the short message delivery report to the terminal through the second MME.
12. The MSC of claim 10,
the second determining unit is specifically configured to, if the short message delivery report is received, perform the joint location update by the terminal, wait for the completion of the joint location update process, and determine whether an MME registered by the terminal is changed during the short message session after the joint location update is completed.
13. The MSC of claim 12,
the MSC further comprises:
and the cache unit is used for caching the short message delivery report before sending the delivery report if the combined position updating process is not finished.
14. The MSC of claim 10,
the first sending unit is further configured to send the short message delivery report to the terminal through the first MME if the terminal is not changed to be registered in the second MME.
15. A mobility management entity, MME, wherein the MME is a second MME; the second MME comprises:
a second sending unit, configured to send a joint location update notification to a mobile switching center MSC based on a joint location update request of the terminal; the joint location update notification is used for notifying the MSC that the terminal has been changed from being registered at the first Mobility Management Entity (MME) to being registered at the second MME; wherein the first MME and the second MME are different MMEs;
a receiving unit, configured to receive a short message delivery report sent by the MSC;
and the third sending unit is used for sending the short message delivery report to the terminal.
16. The MME of claim 15,
the receiving unit is configured to receive a paging message sent by the MSC;
the second sending unit is further configured to send a paging response to the MSC;
the receiving unit is further configured to receive the short message delivery report sent by the MSC after receiving the paging response.
17. The MME of claim 16,
the second sending unit is specifically configured to query a signaling connection state of the terminal, and send the paging response to the MSC if the signaling connection state indicates that the terminal has signaling connection currently.
18. The MME of claim 16 or 17,
the third sending unit is further configured to send a page to the terminal if the signaling connection state indicates that the terminal does not have signaling connection currently;
the second sending unit is further configured to send the paging response to the MSC after receiving the paging reply of the terminal.
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