CN111935744B - Resource updating method and session management function entity - Google Patents
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Abstract
The present disclosure provides a resource updating method and a session management function entity, wherein the method comprises the following steps: receiving an inquiry message sent by a first session management functional entity, and acquiring resource parameters in the inquiry message; if the second terminal can request more network resources for the first terminal according to the resource parameter determined by inquiring the policy control function entity, sending a message for updating the network resources of the first terminal to the second terminal through the second access and mobility management function entity; and receiving a feedback message returned by the second terminal through the second access and mobility management functional entity, ordering the network resource through the unified data management functional entity if the second terminal agrees to update the network resource of the first terminal according to the feedback message, and sending a notification execution message to the first session management functional entity so that the first session management functional entity updates the network resource of the data stream of the current session of the first terminal. Updating the network resources of the end with the degraded signal quality by the opposite end can be realized.
Description
Technical Field
The present disclosure belongs to the field of communication technologies, and in particular, to a resource updating method and a session management function entity.
Background
For some session-oriented services, such as video communication, voice communication, instant messaging, etc., it is desirable for both parties to maintain smooth data exchange. However, in practice, the service experience of both parties is often poor due to one of the parties. The reasons for this may include that one of the users moves under a base station with relatively tight resources, or that although the location of the user does not change, the user issues a service request to the base station where the user is located in a short time, so that resource contention occurs.
In this case, the most common processing method is to try to change the position continuously in order to improve the signal quality. But, the users at both sides are uncertain which end the signal quality is reduced to cause the reduction of the session service quality, which causes troubles to both communication sides.
CN103095836A discloses a method for adjusting quality of service of internet application. The method stores the identification of the internet application in the network equipment in advance, and when the user uses the internet application, the internet application requests the network equipment to provide the service quality meeting the business requirement for the user by taking the identification of the internet application and the user identification as the evidence. According to the technical scheme, the service quality can be improved for the user only by requesting the network equipment from the internet application, the method is unidirectional, and the whole process needs the registration identification of the internet application and is complicated.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, the present disclosure provides a resource updating method and a session management function entity.
As a first aspect of the present disclosure, there is provided a resource updating method including:
receiving an inquiry message sent by a first session management functional entity, and acquiring resource parameters in the inquiry message; the inquiry message is sent by the first session management functional entity after receiving a notification control message sent by the wireless access network equipment and used for indicating that the service quality of the session between the first terminal and the second terminal is reduced at the first terminal side;
if the strategy control function entity is inquired according to the resource parameters and the second terminal can request more network resources for the first terminal is determined to be, a message for updating the network resources of the first terminal is sent to the second terminal through the second access and mobility management function entity;
and receiving a feedback message returned by the second terminal through the second access and mobility management functional entity, ordering the network resource through the unified data management functional entity if the second terminal agrees to update the network resource of the first terminal according to the feedback message, and sending a notification execution message to the first session management functional entity so that the first session management functional entity updates the network resource of the data stream of the current session of the first terminal.
Preferably, after receiving the query message sent by the first session management function entity and acquiring the resource parameter therein, and before sending the message for updating the network resource of the first terminal to the second terminal through the second access and mobility management function entity, the method further includes:
receiving a payment parameter sent by the policy control function entity;
the ordering the network resource through the unified data management function entity comprises:
and ordering the network resource through a unified data management functional entity according to the payment cost parameter.
Preferably, the message for updating the network resource of the first terminal includes a resource parameter and a payment cost parameter, and the notification execution message includes a resource parameter.
Preferably, the method further comprises:
receiving a notification execution message sent by a second session management functional entity;
and sending a message carrying resource parameters and updating the network resources of the data stream of the current session to the wireless access network equipment, so that the wireless access network equipment allocates the network resources for the data stream of the current session according to the resource parameters.
Preferably, the receiving a notification execution message sent by the second session management function entity further includes:
receiving a notification control message which is sent by the wireless access network equipment and used for indicating that the service quality of a session between a first terminal and a second terminal is reduced on the side of the first terminal;
and sending an inquiry message carrying the resource parameter to the first session management functional entity, wherein the inquiry message is used for inquiring whether the second terminal agrees to update the network resource of the first terminal.
As a second aspect of the present disclosure, there is provided a session management function entity, including:
the receiving module is used for receiving an inquiry message sent by the first session management functional entity; the inquiry message is sent by the first session management functional entity after receiving a notification control message sent by the wireless access network equipment and used for indicating that the service quality of the session between the first terminal and the second terminal is reduced at the first terminal side;
the acquisition module is used for acquiring the resource parameters in the inquiry message;
a sending module, configured to send, to the second terminal through the second access and mobility management functional entity, a message for updating the network resource of the first terminal if it is determined that the second terminal can request more network resources for the first terminal according to the resource parameter;
the receiving module is further configured to receive a feedback message returned by the second terminal through the second access and mobility management functional entity;
the ordering module is used for ordering the network resource through the unified data management function entity if the second terminal agrees to update the network resource of the first terminal according to the feedback message;
the sending module is further configured to send a notification execution message to the first session management functional entity, so that the first session management functional entity updates network resources of a data stream of a current session of the first terminal.
Preferably, the method further comprises the following steps:
the receiving module is further used for receiving the payment parameter sent by the policy control function entity;
the ordering module is specifically configured to:
and ordering the network resource through a unified data management functional entity according to the payment cost parameter.
Preferably, the message for updating the network resource of the first terminal includes a resource parameter and a payment cost parameter, and the notification execution message includes a resource parameter.
Preferably, the method further comprises the following steps:
the receiving module is further configured to receive a notification execution message sent by the second session management functional entity;
the sending module is further configured to send a message carrying resource parameters and updating network resources of the data stream of the current session to the wireless access network device, so that the wireless access network device allocates network resources for the data stream of the current session according to the resource parameters.
Preferably, the method further comprises the following steps:
the receiving module is further configured to receive a notification control message sent by the radio access network device and used for indicating that the quality of service of the session between the first terminal and the second terminal at the first terminal side is reduced;
the sending module is further configured to send an inquiry message carrying the resource parameter to the first session management functional entity, where the inquiry message is used to inquire whether the second terminal agrees to update the network resource of the first terminal.
In the embodiment of the present disclosure, when a situation that the session service quality cannot be guaranteed due to the degradation of the signal quality at one end occurs, the first session management functional entity at the end with the degraded session service quality may initiate an inquiry message to the second session management functional entity at the other end to inquire whether the second terminal agrees to update the network resource of the first terminal. When the second terminal can request more network resources for the first terminal and the second terminal agrees to update the network resources of the first terminal, the network resources are ordered by the unified data management functional entity and a notification execution message is sent to the first session management functional entity, so that the first session management functional entity updates the network resources of the data stream of the current session of the first terminal. The method and the device can realize that the opposite terminal updates the network resource at the end with the degraded signal quality to ensure the session service quality, solve the problem that the prior art cannot determine which end has the degraded signal quality to cause the degraded session service quality, and the scheme disclosed by the invention is bidirectional and has simple and convenient process.
Drawings
Fig. 1 is a flowchart of a resource updating method according to an embodiment of the present disclosure;
fig. 2 is another flowchart of a resource updating method according to an embodiment of the disclosure;
fig. 3 is another flowchart of a resource updating method according to an embodiment of the disclosure;
fig. 4 is a schematic structural diagram of a session management function entity according to an embodiment of the present disclosure.
Detailed Description
For a better understanding of the technical aspects of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
In order to solve the problem that when the session service quality cannot be guaranteed due to the fact that the signal quality of one end is poor, a scheme of continuously changing positions and expecting to improve the signal quality is adopted in the prior art, the problem that the signal quality of the other end is poor cannot be determined, and the problem that the service quality is improved for a user through an identification of internet application and a user identification request from internet application to network equipment in the prior art, the scheme is unidirectional, and the whole process needs 'registration identification of internet application', and is tedious. The disclosure provides a resource updating method and a session management function entity. The following detailed description is made with reference to the accompanying drawings which respectively illustrate embodiments provided by the present disclosure.
The embodiment of the disclosure is applied to a 5G network.
Fig. 1 shows a flowchart of a resource updating method provided by an embodiment of the present disclosure. The resource updating method may be applied to a second Session Management Function (SMF), that is, a Session Management Function entity on the second terminal side. As shown in fig. 1, the resource updating method provided in this embodiment includes the following steps.
Step 101, receiving an inquiry message sent by a first session management functional entity.
Step 102, acquiring resource parameters in the inquiry message.
The query message is sent by a first session management function entity (i.e., a session management function entity at the first terminal side) after receiving a notification control message sent by a Radio Access Network (RAN) device and used for indicating that the quality of service of a session between the first terminal and a second terminal at the first terminal side is reduced. That is, the first terminal and the second terminal are performing session-oriented communication, the radio access network device providing Service to the first terminal recognizes that the QoS (Quality of Service) flow of the current session cannot guarantee the predetermined Quality of Service on the first terminal side due to the Quality of radio signals, that is, the Quality of Service in the direction from the network to the terminal decreases, or the Quality of downlink Service decreases, and the radio access network device sends a notification control message to the first session management function entity. The QoS data flow is the minimum unit of 5G network quality of service scheduling.
In step 101 and step 102, the second session management functional entity receives the query message sent by the first session management functional entity, and obtains the resource parameters carried therein. The query message is used for querying whether the second terminal agrees to update the network resource of the first terminal.
It should be noted that the session may be a voice call, a video call, or a call. The resource parameters include additional network resources, such as bandwidth, required for recovering the session service quality of the current first terminal side. It should be noted that the quality of service on the first terminal side cannot be guaranteed, which may be reflected in situations of picture distortion, deadlock, normal voice but picture loss, call interruption, and the like.
Step 103, inquiring the policy control function entity according to the resource parameter to determine that the second terminal can request more network resources for the first terminal, and then sending a message for updating the network resources of the first terminal to the second terminal through the second access and mobility management function entity.
In this step, the second session management Function entity queries, according to the resource parameter, a Policy Control Function entity (PCF, Policy Control Function, device at the second terminal side) whether the second terminal can request more network resources for the first terminal. And the policy control functional entity determines a query result according to the local policy configuration parameters and returns the query result to the second session management functional entity. And if the second session management functional entity determines that the second terminal can request more network resources for the first terminal according to the query result, the second session management functional entity sends a message for updating the network resources of the first terminal to the second terminal through the second access and mobility management functional entity. The message for updating the network resource of the first terminal comprises a resource parameter.
After the policy control function entity receives the message for updating the network resources of the first terminal, the message is forwarded to the second terminal. The second terminal automatically agrees or refuses the request according to local configuration, or sends prompt information to the user for prompting the user of the second terminal to decide whether to agree to update the network resource of the first terminal. And the second terminal returns the feedback message to the policy control function entity.
And step 104, receiving a feedback message returned by the second terminal through the second access and mobility management functional entity.
And 105, if the second terminal agrees to update the network resource of the first terminal according to the feedback message, ordering the network resource through the unified data management function entity.
In steps 104 to 106, the second session Management functional entity receives a feedback message returned by the second terminal through the second access and mobility Management functional entity, and if it is determined that the second terminal agrees to update the network resource of the first terminal according to the feedback message, the second session Management functional entity completes the ordering of the network resource for updating the QoS flow of the current session of the first terminal through a Unified Data Management functional entity (UDM). The subscription fee is paid by the second terminal. After the ordering is completed, the second session management functional entity sends a notification execution message to the first session management functional entity, and the first session management functional entity sends a message for updating the network resource of the data flow of the current session to the wireless access network device, so that the wireless access network device updates the network resource of the QoS flow of the current session of the first terminal, that is, updates the bandwidth and the like. The notification execution message includes resource parameters.
In the embodiment of the present disclosure, when the situation that the session service quality cannot be guaranteed due to the deterioration of the signal quality at one end occurs, the device at the end with the lowered session service quality may initiate an inquiry message to the device at the other end to inquire whether the other end agrees to update the network resource of the local end, and then update the network resource of the local end when the other end agrees to update. The method and the device can realize that the opposite terminal updates the network resource at the end with the degraded signal quality to ensure the session service quality, solve the problem that the prior art cannot determine which end has the degraded signal quality to cause the degraded session service quality, and the scheme disclosed by the invention is bidirectional and has simple and convenient process.
Further, after receiving the query message sent by the first session management function entity and acquiring the resource parameter therein (i.e. step 101 and step 102), before sending the message for updating the network resource of the first terminal to the second terminal through the second access and mobility management function entity (i.e. step 103), the method further includes:
and receiving the payment parameter sent by the policy control function entity.
The subscribing to the network resource by a unified data management function entity (step 105) comprises: and ordering the network resources through the unified data management functional entity according to the payment cost parameter.
And the second session management functional entity receives the payment cost parameter sent by the policy control functional entity and orders the network resource of the QoS flow of the current session of the first terminal according to the payment cost parameter (namely the payment amount).
Further, the message for updating the network resource of the first terminal includes a payment parameter in addition to the resource parameter. And the second session management functional entity sends a message carrying the payment expense parameter and updating the network resource of the first terminal to the second terminal through the second access and mobility management functional entity, and informs the second terminal of the payment amount of the message for updating the network resource of the first terminal so as to carry out settlement later.
Fig. 2 shows another flowchart of a resource updating method provided by the embodiment of the present disclosure. As shown in fig. 2, the resource updating method may be applied to a first session management function entity, and further, the method further includes:
step 201, receiving a notification execution message sent by the second session management function entity.
Step 202, sending a message carrying resource parameters and updating network resources of the data stream of the current session to the wireless access network device, so that the wireless access network device allocates network resources for the data stream of the current session according to the resource parameters.
In step 201-step 202, the first session management functional entity receives the notification execution message sent by the second session management functional entity, and the first session management functional entity sends a message carrying prestored resource parameters and updating network resources of a data stream of a current session to the radio access network device, so that the radio access network device updates the network resources of a QoS stream of the current session of the first terminal according to the resource parameters, that is, extra network resources, such as an update bandwidth, required for recovering the session service quality of the current first terminal side are allocated to the first terminal.
It should be noted that, in the embodiment of the present disclosure, updating the network resource of the first terminal by the first terminal is not involved, that is, only when the session service quality of the first terminal side is reduced, the opposite terminal updates the network resource of the home terminal, but not the home terminal updates the network resource of the home terminal.
After step 202, after the QoS of the QoS flow of the current session on the first terminal side is restored, the first wireless network access device sends a session QoS restoration message to the first session management function entity, indicating that the current session QoS can be restored, and the first session management function entity terminates sending the inquiry message to the second session management function entity.
In the embodiment of the present disclosure, when the situation that the session service quality cannot be guaranteed due to the deterioration of the signal quality at one end occurs, the device at the end with the lowered session service quality may initiate an inquiry message to the device at the other end to inquire whether the other end agrees to update the network resource of the local end, and then update the network resource of the local end when the other end agrees to update. The method and the device can realize that the opposite terminal updates the network resource at the end with the degraded signal quality to ensure the session service quality, and solve the problem that the session service quality is degraded due to the fact that the signal quality of the opposite terminal is not determined in the prior art.
Fig. 3 shows another flowchart of a resource updating method provided by the embodiment of the present disclosure. As shown in fig. 3, further, before receiving the notification execution message sent by the second session management function entity (i.e. step 201), the method further includes:
step 301, receiving a notification control message sent by a radio access network device for indicating that the quality of service of a session between a first terminal and a second terminal at the first terminal side is reduced.
Step 302, sending an inquiry message carrying the resource parameter to the first session management functional entity.
In steps 301 and 302, a first terminal and a second terminal are performing session-oriented communication, and when a Radio Access Network device (RAN1, Radio Access Network) providing a service for the first terminal recognizes that a QoS flow of a current session is degraded on a first terminal side, a notification control message is sent to a first session management function entity. The first session management functional entity receives the notification control message sent by the wireless access network equipment and sends an inquiry message carrying the resource parameters to the first session management functional entity. The inquiry message is used for inquiring whether the second terminal agrees to update the network resource of the first terminal, so that the second terminal can update the network resource of the first terminal, namely the second terminal pays the cost for updating the network resource of the first terminal. The QoS data flow is the minimum unit of 5G network quality of service scheduling.
Fig. 4 shows a schematic structural diagram of a session management function entity provided in an embodiment of the present disclosure. Based on the same technical concept as the embodiment corresponding to fig. 1, as shown in fig. 4, the session management function entity provided by the embodiment of the present disclosure includes the following modules.
A receiving module 11, configured to receive an inquiry message sent by a first session management function entity; the inquiry message is sent by the first session management function entity after receiving a notification control message sent by the wireless access network equipment and used for indicating that the service quality of the session between the first terminal and the second terminal is reduced at the first terminal side.
An obtaining module 12, configured to obtain the resource parameter in the query message.
A sending module 13, configured to send, to the second terminal through the second access and mobility management functional entity, a message for updating the network resource of the first terminal if it is determined that the second terminal can request more network resources for the first terminal according to the resource parameter.
The receiving module 11 is further configured to receive a feedback message returned by the second terminal through the second access and mobility management functional entity.
And the ordering module 14 is configured to order the network resource through the unified data management function entity if it is determined that the second terminal agrees to update the network resource of the first terminal according to the feedback message.
The sending module 13 is further configured to send a notification execution message to the first session management functional entity, so that the first session management functional entity updates the network resource of the data stream of the current session of the first terminal.
Preferably, the method further comprises the following steps:
the receiving module 11 is further configured to receive a payment parameter sent by the policy control function entity.
The subscription module 14 is specifically configured to:
and ordering the network resource through a unified data management functional entity according to the payment cost parameter.
Preferably, the message for updating the network resource of the first terminal includes a resource parameter and a payment cost parameter, and the notification execution message includes a resource parameter.
Preferably, the method further comprises the following steps:
the receiving module 11 is further configured to receive a notification execution message sent by the second session management function entity.
The sending module 13 is further configured to send a message carrying resource parameters and used for updating network resources of the data stream of the current session to the wireless access network device, so that the wireless access network device allocates network resources for the data stream of the current session according to the resource parameters.
Preferably, the method further comprises the following steps:
the receiving module 11 is further configured to receive a notification control message sent by the radio access network device and used for indicating that the quality of service of the session between the first terminal and the second terminal at the first terminal side is reduced.
The sending module 13 is further configured to send an inquiry message carrying the resource parameter to the first session management functional entity, where the inquiry message is used to inquire whether the second terminal agrees to update the network resource of the first terminal.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.
Claims (10)
1. A method for resource update, comprising:
receiving an inquiry message sent by a first session management functional entity, and acquiring resource parameters in the inquiry message; the inquiry message is sent by the first session management functional entity after receiving a notification control message sent by the wireless access network equipment and used for indicating that the service quality of the session between the first terminal and the second terminal is reduced at the first terminal side;
if the strategy control function entity is inquired according to the resource parameters and the second terminal can request more network resources for the first terminal is determined to be, a message for updating the network resources of the first terminal is sent to the second terminal through the second access and mobility management function entity;
and receiving a feedback message returned by the second terminal through the second access and mobility management functional entity, ordering the network resource through the unified data management functional entity if the second terminal agrees to update the network resource of the first terminal according to the feedback message, and sending a notification execution message to the first session management functional entity so that the first session management functional entity updates the network resource of the data stream of the current session of the first terminal.
2. The method for updating the resources of claim 1, wherein after receiving the query message sent by the first session management function entity and acquiring the resource parameters therein, and before sending the message for updating the network resources of the first terminal to the second terminal through the second access and mobility management function entity, the method further comprises:
receiving a payment parameter sent by the policy control function entity;
the ordering the network resource through the unified data management function entity comprises:
and ordering the network resource through a unified data management functional entity according to the payment cost parameter.
3. The resource updating method according to claim 1, wherein the message for updating the network resource of the first terminal includes a resource parameter and a payment fee parameter, and the notification execution message includes the resource parameter.
4. The resource updating method according to claim 1, wherein the method further comprises:
receiving a notification execution message sent by a second session management functional entity;
and sending a message carrying resource parameters and updating the network resources of the data stream of the current session to the wireless access network equipment, so that the wireless access network equipment allocates the network resources for the data stream of the current session according to the resource parameters.
5. The resource updating method according to claim 4, wherein before receiving the notification execution message sent by the second session management function entity, further comprising:
receiving a notification control message which is sent by the wireless access network equipment and used for indicating that the service quality of a session between a first terminal and a second terminal is reduced on the side of the first terminal;
and sending an inquiry message carrying the resource parameter to a second session management function entity, wherein the inquiry message is used for inquiring whether the second terminal agrees to update the network resource of the first terminal.
6. A session management function entity, comprising:
the receiving module is used for receiving an inquiry message sent by the first session management functional entity; the inquiry message is sent by the first session management functional entity after receiving a notification control message sent by the wireless access network equipment and used for indicating that the service quality of the session between the first terminal and the second terminal is reduced at the first terminal side;
the acquisition module is used for acquiring the resource parameters in the inquiry message;
a sending module, configured to send, to the second terminal through the second access and mobility management functional entity, a message for updating the network resource of the first terminal if it is determined that the second terminal can request more network resources for the first terminal according to the resource parameter;
the receiving module is further configured to receive a feedback message returned by the second terminal through the second access and mobility management functional entity;
the ordering module is used for ordering the network resource through the unified data management function entity if the second terminal agrees to update the network resource of the first terminal according to the feedback message;
the sending module is further configured to send a notification execution message to the first session management functional entity, so that the first session management functional entity updates network resources of a data stream of a current session of the first terminal.
7. The session management function entity of claim 6, further comprising:
the receiving module is further used for receiving the payment parameter sent by the policy control function entity;
the ordering module is specifically configured to:
and ordering the network resource through a unified data management functional entity according to the payment cost parameter.
8. The entity according to claim 6, wherein the message for updating network resources of the first terminal includes a resource parameter and a payment cost parameter, and the notification execution message includes the resource parameter.
9. The session management function entity of claim 6, further comprising:
the receiving module is further configured to receive a notification execution message sent by the second session management functional entity;
the sending module is further configured to send a message carrying resource parameters and updating network resources of the data stream of the current session to the wireless access network device, so that the wireless access network device allocates network resources for the data stream of the current session according to the resource parameters.
10. The session management function entity according to claim 9, further comprising:
the receiving module is further configured to receive a notification control message sent by the radio access network device and used for indicating that the quality of service of the session between the first terminal and the second terminal at the first terminal side is reduced;
the sending module is further configured to send an inquiry message carrying the resource parameter to the second session management function entity, where the inquiry message is used to inquire whether the second terminal agrees to update the network resource of the first terminal.
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| CN109963351B (en) * | 2017-12-25 | 2021-07-13 | 大唐移动通信设备有限公司 | Method and device for establishing session |
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| CN101277521A (en) * | 2007-03-30 | 2008-10-01 | 华为技术有限公司 | Control method and network system for conversation admittance |
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