CN100403846C - Provide information interaction method in user information business - Google Patents

Abstract

The invention discloses an information interaction method in providing user information services, the method comprising: A. After the core network receives a PSI request for providing user information, it sends a paging message including a preset PSI service identifier to UE; B. . The UE receives the paging message, recognizes that the message includes the PSI service identifier, and then replies a paging response message to the core network; C. After receiving the paging response message replied by the UE, the core network sends a resource release message to the UE; D. After receiving the resource release message, the UE returns a resource release response message to the core network, and releases the resources, and then ends the process according to the PSI service identifier included in the paging message identified in step B. In the present invention, after the UE returns a resource release response message and releases resources according to the resource release message sent by the core network, it ends directly without reestablishing resource connections, thereby saving UE's own resources and network resources.

Description

Provide information interaction method in user information business

technical field

The invention relates to the technical field of mobile communication intelligent services, in particular to an information interaction method in providing user information (PSI) services.

Background technique

In a mobile communication system, when the core network receives a paging request, it establishes resources ( RR/RRC) connection, and send a paging (PAGE) message to the UE. After receiving the paging message and returning a paging response message to the core network, the UE waits for subsequent messages from the core network for other processing. In most services, such as call services, after receiving the paging response message returned by the UE, the core network will send a connection (SETUP) message to carry out the subsequent process of the service.

However, in the PSI service, because paging the called party in the PSI service is only to obtain user information, after the UE receives the paging message sent by the core network, the paging response message returned to the core network already includes the information required by the PSI service. Therefore, after receiving the paging response message returned by the UE, the core network sends a resource release (IU RELEASE COMMAND) message to the UE to request the UE to release resources. After receiving the message, the UE releases the RR/RRC connection, and returns a resource release response (IU RELEASE COMPLETE) message to the core network. However, since the paging message in the PSI service in the prior art is the same as the paging message in other services, the UE will not recognize the paging message of the PSI service, and thinks that after receiving the paging message, the core network will Continue to send subsequent messages, so after releasing the RR/RRC connection for a period of time, the UE will re-establish the RR/RRC connection, and re-send the PSI paging response message to the core network, waiting for the core network to send subsequent messages. After receiving the PSI paging response message, the core network will send a resource release message to the UE, and the UE will release the RR/RRC connection according to the resource release message; the above process will be repeated several times thereafter.

In the existing technology of information interaction between the PSI service core network and the UE, because the UE repeatedly establishes resource connections and sends a paging response message to the core network, it greatly wastes the resources of the UE itself and also wastes network resources. Especially when the network is relatively busy, it has a great impact on the quality of other services.

Contents of the invention

In view of this, the purpose of the present invention is to provide an information exchange method in two PSI services, which can prevent UE from repeatedly establishing resource connections in PSI services, and save UE's own resources and network resources.

In order to achieve the above purpose, the first information interaction method in providing user information services provided by the present invention includes the following steps:

A. After receiving the PSI request for providing user information, the core network sends a paging message including a preset PSI service identifier to the user equipment UE;

B. The UE receives the paging message, recognizes that the message includes the PSI service identifier, and returns a paging response message to the core network;

C. After receiving the paging response message replied by the UE, the core network sends a resource release message to the UE;

D. After receiving the resource release message sent by the core network within the preset waiting time, the UE returns a resource release response message to the core network and releases resources, and then ends the process according to the PSI service identifier identified in step B. Alternatively, if the UE does not receive the message sent by the core network within the waiting time, the resource is directly released.

The preset waiting time starts counting after receiving a paging message in step B and recognizing that the message includes a PSI service identifier;

Or in step B, the paging message is received, and it is recognized that the message includes the PSI service identifier, and the timing starts after replying the paging response message to the core network.

The PSI service identifier may be: an information element added in the paging message, or an enumeration added in the paging cause information element in the paging message.

In order to achieve the above purpose, the second method of information interaction in the service of providing user information provided by the present invention includes the following steps:

a. After receiving the PSI request, the core network judges whether the PSI service corresponding to the PSI request has other services in the future, and if so, executes step b; otherwise executes step e;

b. The core network sends a paging message to the UE;

c. After receiving the paging message, the UE returns a paging response message to the core network;

d. The core network ends the process after receiving the paging response message replied by the UE;

e. Sending a paging message including a preset PSI service identifier to the UE;

f. The UE receives the paging message, and after recognizing that the message includes the PSI service identifier, returns a paging response message to the core network;

g. After receiving the paging response message replied by the UE, the core network sends a resource release message to the UE;

h. After receiving the resource release message, the UE returns a resource release response message to the core network, and releases the resource, and then ends the process according to the PSI service identifier identified in step f.

The paging message mentioned in step b and step c may be an existing paging message, or a paging message including a PSI service identifier.

In step a, judging whether the PSI service corresponding to the received PSI request has other subsequent services may be as follows: judging whether the PSI service corresponding to the PSI request has other subsequent services according to the sending device information in the PSI request.

Further, after the UE receives the paging message in step c, or after the UE replies the paging response message to the core network, the UE starts the timer, and before the process ends in step d, it may further include:

The UE judges whether it has received the message sent by the core network within the preset waiting time, and if so, processes the message according to the normal process; otherwise, directly releases resources, and then ends the process.

Further, after the UE receives the paging message in the step f and recognizes that the message includes the PSI service identifier, or after the UE replies the paging response message to the core network, the UE starts the timer, and before the step h, Can also include:

The UE judges whether it has received the message sent by the core network within the preset waiting time, if yes, and the received message is a resource release message, and executes the step h; if yes, but the received message is another message, Process the message according to the normal process; otherwise release the resource directly, and then end the process.

Preferably, the PSI service identifier is: an information element added in the paging message, or an enumeration added in the paging cause information element in the paging message.

As can be seen from the above scheme, in the present invention, the core network sets the PSI service identifier in the PSI paging message sent to the UE, and the UE will recognize that the message is a PSI paging message through the PSI service identifier, then according to the PSI paging message sent by the core network The resource release message returns the resource release response message and the process is ended directly after the resource is released, and the resource connection is not rebuilt, thereby saving UE's own resources and network resources;

In addition, in the present invention, if the UE does not receive the message sent by the core network within the preset time after returning the paging response message, the resource is released directly, thereby avoiding the established resource being idle for a long time and further saving Internet resources;

Furthermore, in the present invention, it is judged in the core network whether there are other services in the PSI service corresponding to the received PSI request, and if so, the PSI service is directly terminated after receiving the PSI paging response replied by the UE, and does not The resources are released, so that the UE does not need to be paged again in subsequent services, and the communication can be directly performed on the established resource connection, which simplifies the service process and improves the connection speed.

Description of drawings

Fig. 1 is the overall flowchart of the inventive method;

Fig. 2 is a flow chart of the first embodiment of the method of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

The main idea of the present invention is that the core network adds a preset PSI service identifier to the PSI paging message sent for the PSI service, and the UE judges whether the received paging message contains a PSI identifier. If the paging message contains the PSI identifier, after the resource is released according to the resource release message sent by the core network, the resource connection will not be reestablished, and the paging response message will not be returned to the core network.

Overall process of the present invention is as shown in Figure 1, and concrete steps are as follows:

Step 101: After receiving the PSI request, the core network sends a paging message including a preset PSI service identifier to the UE.

The PSI service identifier in the paging message can be an information element preset in the core network added in the paging message, and the information element identifies that the paging message is a paging message of the PSI service; The pre-set enumeration in the core network added to the existing information elements in the paging message, for example, adding a paging cause value Terminating No Wait Signaling in the paging cause information element of the paging message, through the paging The cause value identifies that the paging message is a paging message of the PSI service.

Step 102, the UE receives the paging message, and after recognizing that the message includes the PSI service identifier, returns a paging response message to the core network.

In this step, after the UE recognizes that the received paging message includes the PSI service identifier, it can determine that after the resources are released according to the resource release message of the core network, it does not need to establish a resource connection by itself, and does not need to reply to the core network. Paging response message.

Step 103: After receiving the paging response message replied by the UE, the core network sends a resource release message to the UE.

Step 104: After receiving the resource release message, the UE returns a resource release response message to the core network, and releases resources, and then ends the process according to the PSI service identifier included in the paging message identified in step 102 above.

After the UE releases resources in step 104, the process ends according to the PSI service identifier identified in the paging message identified in step 102, and no longer actively establishes a resource connection and sends a paging response message to the core network, thereby saving the UE itself resources and network resources.

The core network may also perform step 103 or not perform step 103 according to whether the PSI service corresponding to the received PSI request has other subsequent services. For other services, perform the above step 103; otherwise, do not perform the above step 103, but wait for the arrival of subsequent other service messages, and use the established RR/RRC connection in the PSI service to communicate with the UE.

In addition, in the present invention, the waiting time after replying the paging response can also be set in the UE, and if the message sent by the core network is received within the waiting time set, the message is processed according to the received message; if the waiting time is exceeded, Then the UE directly releases the resources.

The present invention will be described in detail below through specific examples.

The flow process of the first embodiment of the present invention is shown in Figure 2, and the specific steps are as follows:

Step 201 , after receiving the PSI request, the core network judges whether the PSI request is a pure PSI service request, and if so, executes the process in FIG. 1 ; otherwise, executes step 202 .

In this step, judging whether the PSI request is a pure PSI service request can be determined according to the device that initiates the PSI request. For example, for the positioning service in the PSI service, if it is a simple positioning service, the positioning service center usually initiates a PSI request to the core network; while the positioning service with follow-up call services is provided by a non-location service center, such as the user's home location Devices such as the register (HLR) initiate a PSI request to the core network; correspondingly, after the core network receives the PSI request, it can determine whether the PSI request corresponds to a simple PSI request based on the information of the device sending the request included in the PSI request. business.

Step 202, the core network sends a paging message to the UE, and the UE returns a paging response message to the core network after receiving the paging message.

Since the core network recognizes that there are other processes following the PSI request, the core network will not send a resource release message to the UE in the subsequent steps, nor will it involve the problem of recreating resources after the UE releases resources. Therefore, in this step, the core network The paging message sent to the UE may be a paging response message including the PSI service identifier, or a paging response message not including the PSI service identifier.

Step 203, the core network waits for the arrival of the subsequent message, and communicates with the UE on the established RR/RRC connection after the message arrives. If there is a subsequent call service, after receiving the call request, it sends a SETUP message to the UE, and then the UE performs processing according to the message. The specific implementation of this step is the same as that of the prior art, and will not be described in detail here.

The above is the description of the first embodiment of the present invention. In the first embodiment, by judging whether the PSI request is a pure PSI service request in the core network, after judging that the service corresponding to the PSI request is not a pure PSI service, but When there are other services after the PSI service, the core network does not tear down the established RR/RRC connection with the UE, so that the UE does not need to be paged in subsequent services, and the RR/RRC established in the PSI service can be directly established The business interaction is performed on the connection, which simplifies the business process and improves the connection speed. However, in the first embodiment, although there may be other services following the PSI request, after the PSI paging, the core network does not receive the subsequent message for a long time, so the established RR/RRC connection is always idle . Therefore, in order to avoid long-term idleness of the established RR/RRC connection, a second embodiment of the present invention is proposed, which will be described below.

In the second embodiment of the present invention, only the improvement of the UE part is involved. The processing of the core network after receiving the PSI request can be the same as that of the core network in FIG. 1 after receiving the PSI request, or it can be the same as this In the first embodiment of the invention, the processing of the core network after receiving the PSI request is the same. Improvements to the UE part in this embodiment will be described below.

In this embodiment, a time T for waiting for a subsequent message after receiving a paging message is set in advance in the UE through a timer.

After receiving the paging message, the UE starts the timer and judges whether it has received the message sent by the core network before the timer expires. If the UE receives the message sent by the core network and the message is a resource release message, the UE sends The core network returns a resource release response message, and releases the established RR/RRC connection, and then ends the process; if the UE receives a message sent by the core network, but the message is not a resource release message, the UE proceeds as normal in the prior art The process processes the message; and if the UE does not receive the message sent by the core network after the timer expires, the UE will directly release the established RR/ RRC connection, and then end the procedure.

In this embodiment, the waiting time T set by the timer may also be the time for waiting for subsequent messages after replying to the paging response message. Correspondingly, the UE starts the timer after receiving the paging message and returning the paging response message to the core network.

In addition, in this embodiment, the above-mentioned paging message may refer to a paging message including a PSI service identifier, that is, only when the UE receives a paging message including a PSI service identifier and recognizes that the paging message includes a PSI service identifier After that, the above-mentioned timer is started. Similarly, the step of starting the above-mentioned timer by the UE may also be performed after the UE recognizes that the PSI service identifier is included in the paging message and returns a paging response message to the core network.

The above descriptions are only preferred 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 present invention. within the scope of protection.

Claims (9)

1. A method for providing information interaction in user information services, characterized in that the method comprises the following steps: A. After receiving the PSI request for providing user information, the core network sends a paging message including a preset PSI service identifier to the user equipment UE; B. The UE receives the paging message, recognizes that the message includes the PSI service identifier, and returns a paging response message to the core network; C. After receiving the paging response message replied by the UE, the core network sends a resource release message to the UE; D. After receiving the resource release message sent by the core network within the preset waiting time, the UE returns a resource release response message to the core network and releases resources, and then ends the process according to the PSI service identifier identified in step B. Alternatively, if the UE does not receive the message sent by the core network within the waiting time, the resource is directly released. 2. The method according to claim 1, wherein the preset waiting time starts counting after receiving a paging message in step B and recognizing that the message includes a PSI service identifier; Or in step B, the paging message is received, and it is recognized that the message includes the PSI service identifier, and the timing starts after replying the paging response message to the core network. 3. The method according to claim 1, wherein the PSI service identifier is: an information element added in the paging message, or an enumeration added in the paging cause information element in the paging message. 4. An information interaction method in providing user information services, characterized in that the method comprises the following steps: a. After receiving the PSI request, the core network judges whether the PSI service corresponding to the PSI request has other services in the future, and if so, executes step b; otherwise executes step e; b. The core network sends a paging message to the UE; c. After receiving the paging message, the UE returns a paging response message to the core network; d. The core network ends the process after receiving the paging response message replied by the UE; e. Sending a paging message including a preset PSI service identifier to the UE; f. The UE receives the paging message, and after recognizing that the message includes the PSI service identifier, returns a paging response message to the core network; g. After receiving the paging response message replied by the UE, the core network sends a resource release message to the UE; h. After receiving the resource release message, the UE returns a resource release response message to the core network, and releases the resource, and then ends the process according to the PSI service identifier identified in step f. 5. The method according to claim 4, wherein the paging message in step b and step c is an existing paging message, or the paging message including the PSI service identifier. 6. The method according to claim 4, wherein, in step a, judging whether the PSI service corresponding to the received PSI request has other subsequent services is as follows: judging that the PSI request corresponds to the PSI request according to the sending device information in the PSI request Whether there is any other business in the follow-up of the PSI business. 7. The method according to claim 4, wherein in step c, after the UE receives the paging message, or after the UE replies the paging response message to the core network, the UE starts the timer, and ends in step d Prior to this process, it further includes: The UE judges whether it has received the message sent by the core network within the preset waiting time, and if so, processes the message according to the normal process; otherwise, directly releases resources, and then ends the process. 8. The method according to claim 4, wherein in step f, after the UE receives the paging message and recognizes that the message includes the PSI service identifier, or after the UE replies the paging response message to the core network , the UE starts the timer, before the step h, further includes: The UE judges whether it has received the message sent by the core network within the preset waiting time, if yes, and the received message is a resource release message, and executes the step h; if yes, but the received message is another message, Process the message according to the normal process; otherwise release the resource directly, and then end the process. 9. The method according to any one of claims 4 to 8, wherein the PSI service identifier is: an information element added in a paging message, or in a paging cause information element in a paging message Added enumeration.

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