CN112291792A - Method for acquiring radio resource and session management function entity - Google Patents
Method for acquiring radio resource and session management function entity Download PDFInfo
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- CN112291792A CN112291792A CN202011212913.1A CN202011212913A CN112291792A CN 112291792 A CN112291792 A CN 112291792A CN 202011212913 A CN202011212913 A CN 202011212913A CN 112291792 A CN112291792 A CN 112291792A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
Abstract
The application discloses a method for acquiring wireless resources and a session management function entity, wherein the method comprises the following steps: responding to resource request information sent by a first terminal, and acquiring wireless resource demand information of the first terminal and an identifier of the first terminal; inquiring wireless resources of each preset terminal within a preset coverage range to obtain information of resources capable of being released temporarily; determining matching resources matched with wireless resources required by the first terminal according to the temporary releasable resource information and the wireless resource demand information; and generating and sending a temporary allocation message to the wireless access network equipment according to the matching resource and the identifier of the first terminal, so that the wireless access network equipment temporarily allocates the matching resource to the first terminal for use. The waste of resources which can be released temporarily is avoided, so that the utilization efficiency of wireless resources is improved, and the user experience is improved.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a method for acquiring a wireless resource and a session management function entity.
Background
When the base station load is high, some users cannot acquire the required wireless resources in time, but some wireless resources are used for data transmission of no user, which results in waste of wireless resources. At present, the method for improving the resource utilization rate comprises the following steps: resources are acquired from adjacent base stations or a shared resource pool is established in advance, and resources which can be temporarily released are acquired from the shared resource pool.
However, the method of acquiring resources from adjacent base stations is only suitable for the user terminal in the overlapping area covered by two base stations, and cannot be applied to other scenes, and the utilization rate is not high; if the method of establishing the shared resource pool in advance is adopted, a part of resources need to be reserved, and the reserved resources are ensured not to be occupied by other equipment, so that the resource utilization rate can not be effectively improved.
Disclosure of Invention
Therefore, the application provides a method for acquiring radio resources and a session management function entity to solve the problem of low resource utilization rate of the radio resources in a communication system.
In order to achieve the above object, a first aspect of the present application provides a method for acquiring radio resources, the method including: responding to resource request information sent by a first terminal, and acquiring wireless resource demand information of the first terminal and an identifier of the first terminal; inquiring wireless resources of each preset terminal within a preset coverage range to obtain information of resources capable of being released temporarily; determining matching resources matched with wireless resources required by the first terminal according to the temporary releasable resource information and the wireless resource demand information; and generating and sending a temporary allocation message to the wireless access network equipment according to the matching resource and the identifier of the first terminal, so that the wireless access network equipment temporarily allocates the matching resource to the first terminal for use.
In some implementations, determining a matching resource matching with a radio resource required by the first terminal according to the temporary releasable resource information and the radio resource requirement information includes: extracting identifiers of QoS data streams to be released in the resource information capable of being temporarily released and configuration information corresponding to the QoS data streams to be released, wherein the configuration information comprises the identifiers of the resource terminals to be released in the resource terminal group to be released and the service time information of the QoS data streams to be released; comparing the use time information of the QoS data stream to be released with the required use time information in the wireless resource requirement information to obtain a comparison result; and under the condition that the comparison results are the same, determining the matching resources according to the QoS data stream to be released.
In some implementations, determining the matching resources according to the QoS data flow to be released includes: and taking the QoS data flow to be released as a matching resource under the condition that the QoS data flow to be released can be suspended or the data flow corresponding to the QoS data flow to be released is a preset flow threshold value.
In some specific implementations, generating and sending a temporary allocation message to the radio access network device according to the matching resource and the identifier of the first terminal, so that the radio access network device temporarily allocates the matching resource to the first terminal for use, includes: extracting the identification of the QoS data stream to be released in the matched resources and the identification of each resource terminal to be released corresponding to the QoS data stream to be released; generating a temporary allocation message according to the identification of the QoS data stream to be released, the identification of each resource terminal to be released and the identification of the first terminal; and sending the temporary allocation message to the wireless access network equipment so that the wireless access network equipment temporarily allocates resources corresponding to the QoS data stream to be released to the first terminal for use according to the temporary allocation message.
In some specific implementations, before the step of sending the temporary allocation message to the radio access network device, so that the radio access network device temporarily allocates the resource corresponding to the QoS data stream to be released to the first terminal for use according to the temporary allocation message, and after the step of determining the matching resource matching with the radio resource required by the first terminal according to the temporary releasable resource information and the radio resource requirement information, the method further includes: generating a pause use message according to the identifier of each resource terminal to be released corresponding to the identifier of the QoS data stream to be released and the identifier of each resource terminal to be released; and sending a pause use message to each resource terminal to be released so that each resource terminal to be released pauses sending the data message corresponding to the identifier of the QoS data stream to be released.
In some specific implementations, after the step of sending the pause using message to each resource terminal to be released so that each resource terminal to be released pauses sending the data packet corresponding to the identifier of the QoS data stream to be released, the method further includes: and sending a pause use message to a user plane functional entity (UPF) so that the UPF pauses to forward the corresponding data message to be released.
In some specific implementations, after the step of generating and sending a temporary allocation message to the radio access network device according to the matching resource and the identifier of the first terminal, so that the radio access network device temporarily allocates the matching resource to the first terminal for use, the method further includes: under the condition that the time length of the first terminal for using the matched resources is determined to be greater than or equal to the preset use time length, recovering the matched resources; and recovering the original allocation mode of the matched resources.
In some specific implementations, after the step of generating and sending a temporary allocation message to the radio access network device according to the matching resource and the identifier of the first terminal, so that the radio access network device temporarily allocates the matching resource to the first terminal for use, the method further includes: acquiring the use starting time and the use ending time of the first terminal using the matched resources; calculating the actual use duration of the first terminal using the matched resources according to the use starting time and the use ending time; inquiring charging information corresponding to the actual use duration according to the actual use duration; and according to the charging information, eliminating the telephone charge of each resource terminal to be released corresponding to the matched resources in the actual use time.
In some implementations, the predetermined coverage area represents an area of the same base station and the same sector as the first terminal.
In some implementations, before the step of obtaining the radio resource requirement information of the first terminal and the identifier of the first terminal in response to the resource request information sent by the first terminal, the method further includes: sending an ordering request to a unified data management function entity (UDM) so that the UDM orders and acquires services for current equipment according to the ordering request, wherein the acquiring services are services for acquiring wireless resources of each preset terminal in a preset coverage range; sending a query request to a policy control function entity (PCF) so that the PCF determines whether the current equipment has the authority of acquiring wireless resources of each preset terminal in a preset coverage range; and responding to the query response fed back by the PCF, and determining that the current equipment has the authority of acquiring the wireless resources of each preset terminal in the preset coverage range.
In order to achieve the above object, a second aspect of the present application provides a session management function entity, including: the acquisition module is used for responding to the resource request information sent by the first terminal and acquiring the wireless resource demand information of the first terminal and the identifier of the first terminal; the query module is used for querying wireless resources of each preset terminal within a preset coverage range to obtain information of resources which can be temporarily released; the matching module is used for determining matching resources matched with the wireless resources required by the first terminal according to the temporary releasable resource information and the wireless resource demand information; and the allocation module is used for generating and sending a temporary allocation message to the wireless access network equipment according to the matching resources and the identifier of the first terminal so that the wireless access network equipment temporarily allocates the matching resources to the first terminal for use.
According to the method for acquiring the wireless resources and the session management function entity, the wireless resources of each terminal within the preset coverage range are inquired to acquire the temporary releasable resource information, the matching resources matched with the wireless resources required by the first terminal in the temporary releasable resource information and the identifier of the first terminal are generated and sent to the wireless access network equipment, the temporary releasable resources can be temporarily allocated to the first terminal for use, the waste of the temporary releasable resources is avoided, the utilization efficiency of the wireless resources is improved, and the user experience is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the principles of the disclosure and not to limit the disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which:
fig. 1 is a flowchart illustrating a method for acquiring radio resources according to an embodiment of the present application.
Fig. 2 is a flowchart illustrating a method for acquiring radio resources according to another embodiment of the present application.
Fig. 3 shows a block diagram of the components of the session management function entity in the embodiment of the present application.
Fig. 4 is a block diagram showing a configuration of a radio resource acquisition system in the embodiment of the present application.
Fig. 5 is a flowchart illustrating an operating method of the system for acquiring radio resources in the embodiment of the present application.
In the drawings:
301: the obtaining module 302: query module
303: the matching module 304: dispensing module
410: session management function entity 420: first terminal
430: the radio access network device 440: user plane functional entity
450: the group of to-be-released resource terminals 451: first terminal for releasing resources
452: second to-be-released resource terminal 45 n: nth to-be-released resource terminal
Detailed Description
The following detailed description of embodiments of the present application will be made with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present application, are given by way of illustration and explanation only, and are not intended to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a flowchart illustrating a method for acquiring radio resources according to an embodiment of the present application. The method for acquiring the wireless resource can be applied to a Session Management Function (SMF). As shown in fig. 1, the method for acquiring radio resources includes:
The resource request information may include radio resource requirement information of the first terminal (for example, a total amount of radio resources required by the first terminal and required usage time information corresponding to the radio resources required by the first terminal, etc.), and may further include an identifier of the first terminal, and related configuration information of a serving cell in which the first terminal is located, etc. The SMF can conveniently acquire the specific network environment of the first terminal, and the processing efficiency of the resource requirement of the first terminal is improved.
The resource request information is only illustrated by way of example, and may be specifically set according to specific situations, and other non-illustrated resource request information is also within the protection scope of the present application, and is not described herein again.
For example, the predetermined coverage area indicates an area of the same sector and the same base station as the first terminal. The SMF inquires the specific wireless resources of each preset terminal which is located in the same base station and in the same sector with the first terminal according to the total amount of the wireless resources required by the first terminal, determines whether the preset terminals have temporary releasable resources and can be temporarily allocated to the first terminal for use through inquiry, and obtains information of the temporary releasable resources through statistics. The information of the temporarily releasable resource may include an identifier of each preset terminal, an identifier (e.g., a channel resource, etc.) of the temporarily releasable resource that each preset terminal has and can be temporarily allocated to the first terminal for use, and information such as a use start time corresponding to the temporarily releasable resource. The SMF can conveniently and temporarily allocate the temporarily releasable resources, and the resource requirement of the first terminal is met.
For example, first configuration information in the temporary releasable resource information is extracted, second configuration information in the radio resource demand information is extracted, the first configuration information and the second configuration information are compared to obtain a comparison result, and the matching resource is determined according to the comparison result. The comparison result may include whether the use start time in the temporary releasable resource is consistent with the start time of the resource demand of the first terminal, whether the occupation amount of the temporary releasable resource can satisfy a plurality of comparison information such as the resource demand of the first terminal, and only when the comparison information is the same, the corresponding matching resource can be confirmed, thereby avoiding the waste of resources and improving the utilization rate of wireless resources.
After a Radio Access Network (RAN) device obtains a temporary allocation message, configuration information corresponding to a matching resource is obtained through message analysis, and then the matching resource is temporarily allocated to a first terminal for use, so as to meet the temporary resource requirement of the first terminal.
In this embodiment, the information of the temporarily releasable resources is obtained by querying the radio resources of each terminal within the preset coverage range, the matching resources that are matched with the radio resources required by the first terminal in the information of the temporarily releasable resources and the identifier of the first terminal are generated and sent to the radio access network device, so that the temporarily releasable resources can be temporarily allocated to the first terminal for use, the waste of the temporarily releasable resources is avoided, the utilization efficiency of the radio resources is improved, and the user experience is improved.
In some implementations, the determining, in step 130, a matching resource matching the radio resource required by the first terminal according to the temporary releasable resource information and the radio resource requirement information includes:
step 131, extracting the identifier of the Quality of Service (QoS) data stream to be released and the configuration information corresponding to the QoS data stream to be released from the temporary releasable resource information.
The configuration information includes the identifier of the resource terminal to be released in the resource terminal group to be released and the service time information of the QoS data stream to be released. The identity of the quality of service QoS data Flow may be denoted as (QoS Flow Identifier, QFI).
Step 132, comparing the use time information of the QoS data stream to be released with the required use time information in the radio resource requirement information, and obtaining a comparison result.
For example, when the comparison result is that the usage time of the QoS data stream to be released is the same as the required usage time in the radio resource requirement information, it indicates that the QoS data stream to be released can meet the requirement of the required usage time of the first terminal; and when the comparison result shows that the use time of the QoS data flow to be released is different from the required use time in the wireless resource requirement information, the QoS data flow to be released cannot meet the requirement of the required use time of the first terminal. The QoS data stream to be released which does not meet the requirement of the first terminal on the required service time can be directly eliminated, and the confirmation of the matching resources is accelerated.
And step 133, determining the matching resource according to the QoS data stream to be released under the condition that the comparison results are determined to be the same.
It should be noted that the QoS data streams to be released have different working states, and the working state corresponding to the QoS data stream to be released also needs to be matched with the working state of the resource required by the first terminal, so as to determine the matched resource, and improve the matching accuracy of the wireless resource.
In some implementations, determining the matching resources according to the QoS data flow to be released includes: and taking the QoS data flow to be released as a matching resource under the condition that the QoS data flow to be released can be suspended or the data flow corresponding to the QoS data flow to be released is a preset flow threshold value.
The preset traffic threshold may be 0 or other thresholds acceptable by the first terminal, so as to ensure that the matching resource obtained by the first terminal can meet the requirement of the first terminal on the wireless resource.
Obtaining a comparison result by comparing the use time information of the QoS data stream to be released with the required use time information in the wireless resource requirement information; and when the comparison results are the same and the QoS data stream to be released can be suspended, or the data traffic corresponding to the QoS data stream to be released is the preset traffic threshold, determining the QoS data stream to be released as the matching resource can ensure that the first terminal can accurately acquire the wireless resource required by the first terminal, improve the matching accuracy of the wireless resource, and improve the use experience of the user of the first terminal.
In some specific implementations, the generating and sending a temporary allocation message to the radio access network device according to the matching resource and the identifier of the first terminal in step 140, so that the radio access network device temporarily allocates the matching resource to the first terminal for use, includes:
step 141, extracting the identifier of the QoS data stream to be released in the matched resource and the identifier of each resource terminal to be released corresponding to the QoS data stream to be released.
And 142, generating a temporary allocation message according to the identifier of the QoS data stream to be released, the identifier of each resource terminal to be released and the identifier of the first terminal.
Step 143, sending the temporary assignment message to the radio access network device.
When the RAN device receives the temporary allocation message, the RAN device may temporarily allocate, according to the temporary allocation message, resources corresponding to the QoS data stream to be released to the first terminal for use, so as to meet a temporary requirement of the first terminal on radio resources.
The identifier of the QoS data stream to be released in the matched resources and the identifiers of the resource terminals to be released corresponding to the QoS data stream to be released are sent to the RAN equipment, so that the RAN equipment can temporarily allocate the QoS data stream to be released to the first terminal for use according to the identifier of the QoS data stream to be released, the temporary allocation efficiency of the matched resources is improved, the first terminal can acquire the required wireless resources more quickly, and the user experience is improved.
In some implementations, before step 140, after step 130, the method further includes: generating a pause use message according to the identifier of each resource terminal to be released corresponding to the identifier of the QoS data stream to be released and the identifier of each resource terminal to be released; and sending a pause use message to each resource terminal to be released so that each resource terminal to be released pauses sending the data message corresponding to the identifier of the QoS data stream to be released.
By sending the pause use message to each resource terminal to be released, each resource terminal to be released pauses the use of the data message corresponding to the identifier of the QoS data stream to be released, thereby avoiding the occurrence of failure in sending the data message, improving the accuracy of data communication, ensuring the reasonable use of wireless resources and improving the utilization rate of the wireless resources.
In some specific implementations, after the step of sending the pause using message to each resource terminal to be released so that each resource terminal to be released pauses sending the data packet corresponding to the identifier of the QoS data stream to be released, the method further includes: and sending a pause use message to a User Plane Function (UPF) so that the UPF pauses to forward the corresponding data message to be released.
By giving the pause use message to each resource terminal to be released and the UPF, each resource terminal to be released and the UPF can process the data message corresponding to the identifier of the QoS data stream to be released in time, thereby avoiding the occurrence of error information transmission caused by repeated use of resources, improving the utilization rate of wireless resources and ensuring the accuracy of communication information.
In some implementations, before step 110, the method further includes: sending an order request to a Unified Data Management (UDM) entity, so that the UDM orders an acquisition service for a current device according to the order request, wherein the acquisition service is a service for acquiring wireless resources of each preset terminal in a preset coverage range; sending a query request to a Policy Control Function (PCF) so that the PCF determines whether the current device has the right to acquire radio resources of each preset terminal within a preset coverage range; and responding to the query response fed back by the PCF, and determining that the current equipment has the authority of acquiring the wireless resources of each preset terminal in the preset coverage range.
By sending the subscription request to the UDM to subscribe to acquire services, the permission of the SMF is guaranteed to be approved by other devices, and the validity of the operation of the SMF is guaranteed. When the SMF sends a query request to the PCF, the SMF is determined to have the authority of acquiring the wireless resources of each preset terminal in the preset coverage range, the validity of the acquisition service of the SMF is further determined, and the scheduling efficiency of the SMF on the wireless resources is accelerated.
In some specific implementations, after the step of generating and sending a temporary allocation message to the radio access network device according to the matching resource and the identifier of the first terminal, so that the radio access network device temporarily allocates the matching resource to the first terminal for use, the method further includes: acquiring the use starting time and the use ending time of the first terminal using the matched resources; calculating the actual use duration of the first terminal using the matched resources according to the use starting time and the use ending time; inquiring charging information corresponding to the actual use duration according to the actual use duration; and according to the charging information, eliminating the telephone charge of each resource terminal to be released corresponding to the matched resources in the actual use time.
The telephone charge of each resource terminal to be released corresponding to the matched resources within the actual use time is avoided, repeated charge of each resource terminal to be released is avoided, the rights and interests of each resource terminal to be released are guaranteed, wireless resources can be correctly charged in the process of temporary allocation, each resource terminal to be released is willing to provide the temporarily releasable resources, reasonable utilization of the wireless resources is guaranteed, and user experience is improved.
Fig. 2 is a flowchart illustrating a method for acquiring radio resources according to another embodiment of the present application. The method for acquiring the wireless resources can be applied to SMF. As shown in fig. 2, the method for acquiring radio resources includes:
It should be noted that steps 210 to 240 in this embodiment are the same as steps 110 to 140 in the previous embodiment, and are not described again here.
And 250, recovering the matched resources under the condition that the time length for the first terminal to use the matched resources is greater than or equal to the preset use time length.
For example, a reclaim temporary resource message is sent to the RAN to enable the RAN to reclaim the QoS data streams to be released that are temporarily allocated for use by the first terminal. The message for recovering the temporary resources comprises the identifier of the recovered resources and the identifier of the QoS data flow to be released. The first terminal is ensured to be continuously used by other equipment under the condition that the matching resources are not needed, the waste of wireless resources is avoided, and the utilization rate of the wireless resources is improved.
The original allocation method is an allocation method of the matching resources before the matching resources are not temporarily allocated to the first terminal for use. For example, the matching resource is originally allocated to the second terminal for use, when the first terminal makes a temporary resource request and the second terminal does not use the matching resource within a preset time, the matching resource is temporarily allocated to the first terminal for use, and when the first terminal finishes using, the matching resource needs to be returned to the second terminal, so that normal operation of the service of the second terminal is ensured, and the utilization rate of the wireless resource is improved.
In this embodiment, the information of the temporarily releasable resources is obtained by querying the radio resources of each terminal within the preset coverage range, and the matching resources matching the radio resources required by the first terminal in the information of the temporarily releasable resources and the identifier of the first terminal are generated and sent to the radio access network device, so that the temporarily releasable resources can be temporarily allocated to the first terminal for use; and under the condition that the time length of the first terminal using the matched resources is greater than or equal to the preset time length, the matched resources are recovered, and the original allocation mode of the matched resources is recovered, so that the waste of resources which can be temporarily released is avoided, the utilization efficiency of wireless resources is improved, and the user experience degree is improved.
Fig. 3 shows a block diagram of the components of the session management function entity in the embodiment of the present application. As shown in fig. 3, the session management function entity includes: an obtaining module 301, configured to obtain, in response to resource request information sent by a first terminal, radio resource requirement information of the first terminal and an identifier of the first terminal; an inquiry module 302, configured to inquire, in a preset coverage range, a radio resource of each preset terminal, and obtain information on a resource that can be temporarily released; a matching module 303, configured to determine, according to the information about the temporarily releasable resource and the information about the radio resource requirement, a matching resource that matches the radio resource required by the first terminal; and an allocating module 304, configured to generate and send a temporary allocation message to the radio access network device according to the matching resource and the identifier of the first terminal, so that the radio access network device temporarily allocates the matching resource to the first terminal for use.
In the embodiment, the query module queries the wireless resources of each terminal within the preset coverage range to obtain the information of the temporarily releasable resources; the matching module is used for matching the temporary releasable resource information with the wireless resource required by the first terminal, the allocation module is used for generating and sending temporary allocation information to the wireless access network equipment according to the matching resource matched with the wireless resource required by the first terminal in the temporary releasable resource information and the identifier of the first terminal, so that the temporary releasable resource can be temporarily allocated to the first terminal for use, the waste of the temporary releasable resource is avoided, the utilization efficiency of the wireless resource is improved, and the user experience degree is improved.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present application, a unit that is not so closely related to solving the technical problem proposed by the present application is not introduced in the present embodiment, but it does not indicate that no other unit exists in the present embodiment.
Fig. 4 is a block diagram illustrating a radio resource acquisition system according to an embodiment of the present application, where as shown in fig. 4, the radio resource acquisition system includes: the terminal system comprises an SMF410, a first terminal 420, a Radio Access Network (RAN) 430, a User Plane Function (UPF) 440, and a group of terminals 450 of resources to be released, where the group 450 of terminals of resources to be released includes a plurality of terminals of resources to be released, for example, a first terminal 451 of resources to be released, a second terminal 452, … … of resources to be released, a nth terminal 45n of resources to be released, and n is an integer greater than or equal to 1.
Fig. 5 is a flowchart illustrating an operating method of a system for acquiring radio resources in the embodiment of the present application, and as shown in fig. 5, the method specifically includes the following steps.
In step 501, when the first terminal 420 finds that the radio resources required by itself are not enough, it sends resource request information to the RAN430, so that the RAN430 forwards the resource request information to the SMF 410.
Wherein the resource request information includes: the radio resource requirement information of the first terminal 420 (e.g., the total amount of radio resources required by the first terminal 420 and the required usage time information corresponding to the radio resources required by the first terminal 420) and the identity of the first terminal 420.
In step 502, the SMF410 sends a resource query request to the RAN430 to obtain the usage of radio resources of all terminals under the same base station and sector coverage as the first terminal 420.
At step 503, RAN430 feeds back the query result to SMF 410.
Wherein, the query result comprises: usage of radio resources of a plurality of to-be-released resource terminals in the to-be-released resource terminal group 450. For example, the usage of the radio resource of the first to-be-released resource terminal 451, the usage of the radio resource of the second to-be-released resource terminal 452, … …, the usage of the radio resource of the nth to-be-released resource terminal 45n, etc.
In some specific implementations, the SMF410 may further interact with the UDM, for example, the SMF410 sends a subscription request to the unified data management function entity, so that the unified data management function entity subscribes to obtain services for the SMF410 according to the subscription request, where the obtained services are services for obtaining radio resources of each terminal to be released in the preset coverage.
In some specific implementations, the SMF410 may further send an inquiry request to the policy control function entity, so that the PCF determines whether the SMF410 has the right to acquire the radio resources of each resource terminal to be released within the preset coverage area; when the SMF410 receives the query response fed back by the policy control function entity, it is determined that the SMF410 has the right to acquire the radio resources of each resource terminal to be released within the preset coverage.
In some implementations, each terminal of the resource to be released may send an inquiry message to a user using the terminal of the resource to be released, and the user determines whether to release the temporarily releasable resource.
In step 504, the SMF410 interacts with each resource terminal to be released in the resource terminal group to be released 450 respectively according to the feedback result, and determines a temporary releasable resource that can satisfy the radio resource requirement of the first terminal 420 among the radio resources owned by each resource terminal to be released in the resource terminal group to be released 450.
For example, the SMF410 sends a temporary resource request message to each resource terminal to be released in the resource terminal group to be released 450. Wherein the temporary resource request message includes preset temporary usage time information (e.g., a preset usage duration (e.g., within 20 minutes), a preset start time). Each of the resource terminals to be released (e.g., the first resource terminal to be released 451, the second resource terminal to be released 452, … …, the nth resource terminal to be released 45n, etc.) determines whether a temporarily releasable resource is available for temporary call within a preset starting time (e.g., 15 o 'clock 20 of day 10/month 21 to 15 o' clock 40 of day 10/month 21) by querying a local wireless resource. When it is determined that there are resources that can be temporarily released at the preset starting time, each terminal of the resources to be released feeds back an identifier of the resources that can be temporarily released (for example, an identifier of a quality of service data flow) to the SMF 410.
It should be noted that the matching resource includes an identifier of a Quality of Service (QoS) data flow to be released, and the condition that the QoS data flow to be released needs to satisfy includes: the QoS data flow to be released may be suspended, or the data flow corresponding to the QoS data flow to be released is a preset flow threshold (for example, the preset flow threshold is 0). The QoS flow is the smallest unit of quality of service scheduling in a 5G network.
When the SMF410 acquires the temporary releasable resources fed back by each resource terminal to be released, the SMF410 marks the temporary releasable resources as matching resources by comparing the use start time corresponding to the temporary releasable resources with the required use time information of the first terminal 420, and when it is determined that the use start time meets the required use time information of the first terminal 420. The SMF410 selects the QoS data flow of the selected temporary release resource from the matched resources according to the total amount of resources required by the first terminal 420, and sends the identifier of the selected QoS data flow to the corresponding resource terminal to be released (for example, the first resource terminal 451 to be released or the second resource terminal 452 to be released) respectively, and instructs the resource terminal to be released to suspend sending the data packet corresponding to the identifier of the selected QoS data flow.
In step 505, the SMF410 sends the identifier of the selected QoS data flow to the UPF 440, and instructs the UPF 440 to suspend forwarding the data packet corresponding to the identifier of the selected QoS data flow.
In step 506, the SMF410 generates a temporary allocation message according to the identifier of the QoS data stream to be released, the identifiers of the resource terminals to be released, and the identifier of the first terminal 420. And transmits the temporary assignment message to RAN 430.
In step 507, the RAN430 obtains the identifier of the QoS data stream to be released by parsing the received temporary allocation message, and temporarily allocates the QoS data stream to be released to the first terminal 420 for use according to the identifier of the QoS data stream to be released.
For example, RAN430 may send the identifier of the QoS data flow to be released to the base station corresponding to each resource terminal to be released, so that the base station can release the radio resource corresponding to the identifier of the QoS data flow to be released.
In step 508, the RAN430 feeds back the assignment result to the SMF 410.
In step 509, the SMF410 starts a timer, and uses the preset duration as the preset duration of the timer.
And step 510, when the statistical duration of the timer is greater than or equal to the preset use duration (for example, 20 minutes), recovering the matching resources.
For example, a reclaim temporary resource message is sent to RAN430 to enable RAN430 to reclaim the QoS data streams to be released that are temporarily allocated for use by first terminal 420.
The message for recovering the temporary resources comprises a resource recovery identifier and an identifier of the QoS data stream to be released.
In step 511, the RAN430 recovers the QoS data stream to be released, which is temporarily allocated to the first terminal 420 for use, according to the recovered resource identifier, and recovers the original allocation manner of the QoS data stream to be released, thereby obtaining a resource recovery result.
For example, the original allocation manner may be to allocate the QoS data flow to be released to its corresponding resource terminal to be released again (e.g., the first resource terminal to be released 451 or the second resource terminal to be released 452).
At step 512, RAN430 feeds back the resource reclamation results to SMF 410.
The resource recovery result comprises the identification of the QoS data stream to be released and the identification of each resource terminal to be released corresponding to the identification of the QoS data stream to be released. For example, the resource recycling result includes the first to-be-released resource terminal 451, and the identifier 123 of the QoS data flow to be released corresponding thereto.
In step 514, while performing step 513, the SMF410 sends a recovery use message to each to-be-released resource terminal corresponding to the identifier of the to-be-released QoS data stream, so that each to-be-released resource terminal can recover transmission of the data packet corresponding to the to-be-released QoS data stream.
In some specific implementations, after step 513, the SMF410 may further interact with the charging server to obtain a charging ticket for the first terminal 420 to use the matching resource, where the charging ticket includes a start time and an end time for the first terminal 420 to use the matching resource. The SMF410 calculates an actual usage duration of the first terminal 420 using the matched resource according to the usage start time and the usage end time; inquiring charging information corresponding to the actual use duration according to the actual use duration; according to the charging information, the telephone charge of each resource terminal to be released (for example, the first resource terminal to be released 451 or the second resource terminal to be released 452) corresponding to the matched resource in the actual usage duration is avoided.
It should be noted that, because the identifier corresponding to the QoS data flow only maintains uniqueness in the session, for the identifier corresponding to each QoS data flow, the session identifier to which the QoS data flow belongs may be added before the identifier of the QoS data flow.
In this embodiment, the information of the temporarily releasable resources is obtained by querying the radio resources of each terminal within the preset coverage range, the matching resources that are matched with the radio resources required by the first terminal in the information of the temporarily releasable resources and the identifier of the first terminal are generated and sent to the radio access network device, so that the temporarily releasable resources can be temporarily allocated to the first terminal for use, the waste of the temporarily releasable resources is avoided, the utilization efficiency of the radio resources is improved, and the user experience is improved.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present application, and that the present application 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 application, and these changes and modifications are to be considered as the scope of the application.
Claims (11)
1. A method for acquiring radio resources, the method comprising:
responding to resource request information sent by a first terminal, and acquiring wireless resource demand information of the first terminal and an identifier of the first terminal;
inquiring wireless resources of each preset terminal within a preset coverage range to obtain information of resources capable of being released temporarily;
determining a matching resource matched with the wireless resource required by the first terminal according to the temporary releasable resource information and the wireless resource demand information;
and generating and sending a temporary allocation message to the wireless access network equipment according to the matching resource and the identifier of the first terminal, so that the wireless access network equipment temporarily allocates the matching resource to the first terminal for use.
2. The method according to claim 1, wherein the determining a matching resource matching the radio resource required by the first terminal according to the temporary releasable resource information and the radio resource requirement information comprises:
extracting identifiers of QoS (quality of service) data streams to be released and configuration information corresponding to the QoS data streams to be released in the temporary releasable resource information, wherein the configuration information comprises the identifiers of the QoS data streams to be released in a resource terminal group to be released and the use time information of the QoS data streams to be released;
comparing the service time information of the QoS data stream to be released with the required service time information in the wireless resource requirement information to obtain a comparison result;
and under the condition that the comparison results are the same, determining the matching resources according to the QoS data stream to be released.
3. The method of claim 2, wherein the determining the matching resource according to the QoS data flow to be released comprises:
and taking the QoS data flow to be released as the matching resource under the condition that the QoS data flow to be released can be suspended or the data flow corresponding to the QoS data flow to be released is a preset flow threshold value.
4. The method according to claim 2 or 3, wherein the generating and sending a temporary allocation message to a radio access network device according to the matching resource and the identifier of the first terminal, so that the radio access network device temporarily allocates the matching resource to the first terminal for use, comprises:
extracting the identification of the QoS data stream to be released in the matched resources and the identification of each resource terminal to be released corresponding to the QoS data stream to be released;
generating a temporary allocation message according to the identifier of the QoS data stream to be released, the identifier of each resource terminal to be released and the identifier of the first terminal;
and sending the temporary allocation message to the radio access network equipment, so that the radio access network equipment temporarily allocates the resources corresponding to the QoS data streams to be released to the first terminal for use according to the temporary allocation message.
5. The method according to claim 4, wherein before the step of sending the temporary allocation message to the radio access network device, so that the radio access network device temporarily allocates resources corresponding to the QoS data flows to be released to the first terminal for use according to the temporary allocation message, and after the step of determining matching resources matching the radio resources required by the first terminal according to the temporarily releasable resource information and the radio resource requirement information, further comprises:
generating a pause use message according to the identification of the QoS data stream to be released and the identification of each resource terminal to be released corresponding to the identification of the QoS data stream to be released;
and sending the pause use message to each resource terminal to be released so that each resource terminal to be released pauses sending the data message corresponding to the identifier of the QoS data stream to be released.
6. The method according to claim 5, wherein after the step of sending the suspension use message to each of the resource terminals to be released, so that each of the resource terminals to be released suspends sending the data packet corresponding to the identifier of the QoS data flow to be released, the method further comprises:
and sending the pause use message to a user plane functional entity (UPF) so that the UPF pauses the forwarding of the data message corresponding to the QoS data stream to be released.
7. The method of claim 1, wherein after the step of generating and sending a temporary allocation message to the radio access network device according to the matching resources and the identifier of the first terminal, so that the radio access network device temporarily allocates the matching resources to the first terminal for use, the method further comprises:
under the condition that the time length of the first terminal using the matched resources is determined to be greater than or equal to the preset using time length, the matched resources are recycled;
and recovering the original allocation mode of the matched resources.
8. The method of claim 2, wherein after the step of generating and sending a temporary allocation message to the radio access network device according to the matching resources and the identifier of the first terminal, so that the radio access network device temporarily allocates the matching resources to the first terminal for use, the method further comprises:
acquiring the use starting time and the use ending time of the first terminal for using the matched resources;
calculating the actual use duration of the first terminal using the matched resource according to the use starting time and the use ending time;
according to the actual use duration, inquiring and obtaining charging information corresponding to the actual use duration;
and according to the charging information, eliminating the telephone charge of each resource terminal to be released corresponding to the matched resources in the actual use time length.
9. The method of claim 1, wherein the predetermined coverage area represents an area in the same sector and in the same base station as the first terminal.
10. The method according to claim 1, wherein the step of obtaining the radio resource requirement information of the first terminal and the identity of the first terminal in response to the resource request information sent by the first terminal is preceded by the step of:
sending an ordering request to a unified data management function (UDM) so that the UDM orders and acquires services for current equipment according to the ordering request, wherein the acquired services are services for acquiring wireless resources of each preset terminal in the preset coverage range;
sending a query request to a policy control function entity (PCF) so that the PCF determines whether the current equipment has the authority of acquiring the wireless resources of each preset terminal in the preset coverage range;
and responding to the query response fed back by the PCF, and determining that the current equipment has the authority of acquiring the wireless resources of each preset terminal in the preset coverage range.
11. A session management function entity, comprising:
an obtaining module, configured to obtain, in response to resource request information sent by a first terminal, radio resource requirement information of the first terminal and an identifier of the first terminal;
the query module is used for querying wireless resources of each preset terminal within a preset coverage range to obtain information of resources which can be temporarily released;
a matching module, configured to determine, according to the information about the temporarily releasable resource and the information about the radio resource requirement, a matching resource that matches the radio resource required by the first terminal;
and the allocation module is used for generating and sending a temporary allocation message to the wireless access network equipment according to the matching resources and the identifier of the first terminal, so that the wireless access network equipment temporarily allocates the matching resources to the first terminal for use.
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