CN1859529A - Timer control method and system - Google Patents

Abstract

The invention discloses a timer control method, comprising: the requester sends a request message to the responder, and at the same time starts a waiting timer; after receiving the message, the responder starts a monitoring timer, and when the monitoring timer has timed out, When the message is not processed, send a timer restart message to the requester; after receiving the message, the requester restarts the waiting timer. The present invention also discloses a timer control system, which includes: a requester device that sends a request message and receives a timer restart message, and receives the request message, and when the monitoring timer has timed out and the request message has not been processed, sends The responder device to which the requester device sends a timer restart message. The invention enables the requester to continue to wait for the response of the responder when the request message has not been processed but the responder is about to respond overtime, avoiding the abnormal end of the service, saving network resources, and making the waiting timer of the requester longer correspond to actual conversations.

Description

A timer control method and system

technical field

The invention relates to the field of timer control, in particular to a timer control method and system.

Background technique

For the security-based user plane mobile location service, the International Open Mobile Alliance (OMA, Open Mobile Alliance) has developed a set of security-based user plane mobile positioning (SUPL, Secure User Plane Location) protocols to comprehensively implement the service. specification. In the SUPL protocol, the timers corresponding to each entity, as well as the triggering and ending conditions of each timer are clearly defined. The timers corresponding to SUPL terminal (SET, SUPL Enabled Terminal) are: UT1, UT2, UT3 and UT4 respectively, the timers corresponding to SUPL positioning platform (SLP, SUPL Location Platform) are: ST1, ST2, ST3 and ST4, SUPL location The timer corresponding to the computing center (SPC, SUPL Positioning Center) is PT1, and the timer corresponding to the requesting SUPL positioning platform (R-SLP, Requesting SUPL Location Platform) is RT1. Each timer is applied to different stages of the SUPL process. For example, the trigger condition of UT1 is: SET sends a SUPL Start (Start) message, and the end condition is: SET receives a SUPL Response (Response) message. The timing duration of UT1 is 10 seconds. When UT1 times out, SET will send SUPL end (End) message to SLP, and release the session resources occupied by itself at the same time.

The timer can prevent the conversation from hanging due to the timeout of the responder's response to the request message after the requester sends the request message during the business process, reducing the waste of resources. Specifically, when the responder does not release the conversation, but the response times out due to internal processing or other reasons, and the requester finds that its own waiting timer has expired, then the requester will send a SUPL end message to the responder in time, To notify the responder to release the conversation, and at the same time release the conversation itself.

Although the above processing can avoid the waste of resources to a certain extent, it will also cause the following disadvantages at the same time:

1. When the responder has the ability to handle this business, end this business abnormally. The responder may not be able to process this business temporarily due to reasons such as the current heavy network load, but if the requester waits for a short time, the responder is likely to process this business. Moreover, if the service ends abnormally, the user will have the impression that the service quality is not good.

2. The requester may apply for the service twice or more times, but at this time the responder may still be unable to process the service, resulting in continued failure of the service and wasting a lot of resources.

3. The timer duration in the standard specification is a suggested value, and these suggested values cannot be applied to all business conversations.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a timer control method and system, so that the requester can continue to wait for the response of the responder when the business dialogue has not been processed, but the responder's response times out, so as to avoid the abnormal end of the business .

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A timer control method, the method comprising:

A. The requester sends a request message to the responder, and at the same time starts the waiting timer; the responder receives the message, starts the monitoring timer, and the duration of the monitoring timer is less than the duration of the waiting timer;

B. When the monitoring timer has expired and the request message has not been processed, the responder sends a timer restart message to the requester; after receiving the message, the requester restarts the waiting timer.

In step B, after receiving the timer restart message, the requester further includes: the requester returns a timer restart response to the responder.

When the responder sends the timer restart message to the requester, it further includes: setting a time length for waiting for a restart response,

Moreover, the time length of waiting for a restart response has elapsed, and the responder has not received the timer restart response from the requester, then the responder repeatedly sends a timer restart message to the requester.

The duration of the restarted waiting timer described in step B is set by the requester itself,

Or it is set by the responder, and the requester is notified through the timer restart message in step B.

A timer control system, comprising: a requester device and a responder device, wherein,

The requester device is used to send a request message to the responder device and start the waiting timer at the same time; it is used to receive the timer restart message of the responder device and restart the waiting timer at the same time;

The responder device is used to receive the request message from the requester device, and simultaneously start a monitoring timer whose duration is shorter than the waiting timer of the requester device; and when the monitoring timer has timed out and the request message has not been processed, send the request The remote device sends a timer restart message.

The requester device is further configured to, after receiving the timer restart message sent by the responder device, return a timer restart response to the responder device;

The responder device is further configured to receive a timer restart response of the requester device.

Compared with the prior art, the present invention starts a waiting timer when the requester sends a request message to the responding party; after the responding party receives the message, it starts a monitoring timer, and the duration of the monitoring timer is less than the duration of the waiting timer. When the responder has not finished processing the request message but the monitoring timer expires, it returns a timer restart message to the requester; after receiving the message, the requester restarts the waiting timer. The present invention enables the requester to continue to wait for the response from the responder when the responder's response times out but is capable of processing this service, avoiding the abnormal end of the service, saving network resources, and making the requester's waiting timer The duration is more in line with the actual dialogue situation.

Description of drawings

Fig. 1 is the system block diagram of the timer control that the present invention provides;

Fig. 2 is a flowchart of timer control provided by the present invention.

Detailed ways

The core idea of the present invention is: when the requesting party sends a request message to the responding party, it starts a waiting timer; after the responding party receives the message, it starts a monitoring timer, and the duration of the monitoring timer is less than the duration of the waiting timer. When the responder has not finished processing the request message but the monitoring timer expires, the responder sends a timer restart message to the requester; after receiving the message, the requester restarts the waiting timer to continue waiting for the response from the responder.

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the system block diagram of timer control provided by the present invention, as shown in Fig. 1, it specifically includes:

The requester device: used to send a request message to the responder device, and start the waiting timer at the same time; used to receive the timer restart message sent by the responder device, and restart the waiting timer.

Further, the requester device is configured to return a timer restart response to the responder device after receiving the timer restart message sent by the responder device.

Responder device: used to receive the request message from the requester device, and at the same time start a monitoring timer whose duration is shorter than the waiting timer of the requester device; The supplicant device sends a timer restart message.

Further, the responder device is configured to receive a timer restart response sent by the requester device.

In the present invention, as long as a device initiates a request and waits for a response from the other device, the device can be called a requester device; similarly, as long as a device receives a request and needs to return a response to the other device that sent the request, the device can be called a requester device. Called the responder device.

Fig. 2 is the flowchart of the timer control that the present invention provides, as shown in Fig. 2, its concrete steps are as follows:

Step 201: the requester sends a request message to the responder and starts a waiting timer at the same time.

The requester in the present invention may be SET or SLP, and correspondingly, the responder may be SLP or SET. If there are multiple requesters or multiple responders, and all requesters and all responders can communicate with each other, then the timer control method provided by the present invention can be used to implement timer control for all requesters.

Step 202: The responder receives the message, sets and starts a monitoring timer, and processes the message at the same time.

The duration of the monitoring timer should be less than the duration of the waiting timer of the requester. The responder can know the waiting timer length of the requester in the following two ways:

1. The default waiting timer duration set by the system saved by itself;

2. The waiting timer duration predicted by the responder.

Step 203: The responder judges whether the message has been processed, and if so, executes Step 204; otherwise, executes Step 205.

Step 204: The responder returns a response message to the requester, and at the same time clears the monitoring timer, and this process ends.

Likewise, after receiving the response message, the requester clears the waiting timer.

Step 205: The responder judges whether the monitoring timer has expired, and if so, executes Step 206; otherwise, continues to process the message, and returns to Step 203.

Step 206: the responder sends a timer restart message to the requester.

When the monitoring timer expires, it indicates that the responder did not return a response message to the requester in time.

The timer restart message includes the current session identifier (ID), the ID of the timer to be reset, that is, the ID of the waiting timer, and may also include the reset duration of the timer.

The timer restart message may be sent in a sending manner supported by the requester and the responder in the prior art.

When the responder sends the timer restart message, it can also set a time to wait for the restart response. If the time has elapsed and the timer restart response has not been received from the requester, it will resend the timer restart message to the requester. .

Step 207: The requester receives the timer restart message, restarts the waiting timer, and waits for the response message from the responder again.

After sending the timer restart message, the responder continues to process the request message normally.

After receiving the timer restart message sent by the responder, the requester may return a timer restart response to the responder, indicating that the timer restart message is received, and the timer restart response includes the session ID.

The reset waiting timer duration can be set by the responder in the timer restart message, or can be set by the requester according to its own situation.

If the responder has not finished processing the message after the restarted waiting timer expires, then the responding party may send a timer restart message again, and the requesting party may restart the waiting timer again.

In practical applications, depending on its own situation, the requester may not reset the waiting timer after receiving the timer restart message, and when the originally set waiting timer expires and still does not receive the response message from the responding party , send a release dialog message to the responder, and at the same time release the dialog itself; or, after receiving the timer restart message, directly release the dialog, and send a release dialog message to the responder.

In order to describe the present invention more clearly, now provide a specific example: SET will initiate a self-location process, send SUPL start message to SLP, start timer UT1 simultaneously, the duration of UT1 is 10 seconds; SLP receives this message, Start the monitoring timer, and set the monitoring timer to 9 seconds; when the monitoring timer expires, the SLP has not finished processing the SUPL start message, and at this time, the SLP returns a timer restart message to the SET, which contains the dialog ID, timer ID: UT1, and timer reset duration: 3 seconds; after receiving the message, the SLP resets the UT1 duration to 3 seconds, and continues to wait for the SUPL response returned by the SLP.

The above descriptions are only process and method embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (6)

1, a kind of timer control method is characterized in that, this method comprises:

A, request directional response side send a request message, and start waiting timer simultaneously; This message is received by response side, start monitor timer, and the duration of monitor timer is less than the duration of waiting timer;

B, overtime and this request message is untreated when finishing at monitor timer, and response side restarts message for requesting party's transmission timer; The requesting party restarts waiting timer after receiving this message.

2, the method for claim 1 is characterized in that, step B receives described request side after the timer restart message, further comprises: the requesting party returns the timer restart response for response side.

3, method as claimed in claim 2 is characterized in that, when described response side restarts message for requesting party's transmission timer, further comprises: set a wait and restart response time,

And response time mistake is restarted in described wait, and response side does not receive requesting party's timer restart response yet, and then response side repeats to restart message to requesting party's transmission timer.

4, the method for claim 1 is characterized in that, the described waiting timer duration that restarts of step B is provided with for requesting party oneself,

Perhaps be that response side is provided with, and by the described timer restart message informing of step B requesting party.

5, a kind of timer control system is characterized in that, comprising: requesting party's equipment and responder device, wherein,

Requesting party's equipment is used for sending a request message to responder device, starts waiting timer simultaneously; Be used to receive the timer restart message of responder device, restart waiting timer simultaneously;

Responder device is used to receive the request message of requesting party's equipment, starts the monitor timer of duration less than the waiting timer duration of requesting party's equipment simultaneously; And at monitor timer overtime and this request message is untreated when finishing, restart message for requesting party's equipment transmission timer.

6, system as claimed in claim 5 is characterized in that, the described request method, apparatus is further used for, and after receiving the timer restart message that responder device sends, returns the timer restart response to responder device;

Described responder device is further used for, and receives the timer restart response of requesting party's equipment.

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