CN109429365B - Management method and device for special bearer - Google Patents
Management method and device for special bearer Download PDFInfo
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- CN109429365B CN109429365B CN201710552274.5A CN201710552274A CN109429365B CN 109429365 B CN109429365 B CN 109429365B CN 201710552274 A CN201710552274 A CN 201710552274A CN 109429365 B CN109429365 B CN 109429365B
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Abstract
The embodiment of the invention provides a special bearer management method and a special bearer management device, wherein the method comprises the following steps: receiving uplink data from a terminal or downlink data from a core network; extracting characteristic information of uplink data or downlink data; matching the characteristic information with a local characteristic information base; if the matching is successful, sending a special bearer establishment request to a PSPS (signaling processing subsystem) in the PGW so that the PSPS checks the characteristic information carried by the special bearer establishment request, and returning a special bearer establishment response to the UPPS after the checking is successful; and establishing the special bearer corresponding to the characteristic information according to the received special bearer establishing response. Therefore, under the application scene without deploying the PCRF network element, the corresponding special bearer is established for the service data with the specified characteristic information, the service quality of the service is ensured, and the user experience is effectively improved.
Description
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a management method and a management device for a special bearer.
Background
Currently, when a terminal communicates with a network side, a core network generally allocates a default bearer for the terminal at a stage of registering the terminal with the network side. In the prior art, to ensure the transmission quality of some services of a terminal, a PCRF (Policy and Charging Rules Function) in a core network may establish a dedicated bearer for the service according to a terminal request or configuration of the core network, so that the service is transmitted on the dedicated bearer.
However, in an application scenario where the core network does not deploy the PCRF network element, the dedicated bearer establishment procedure cannot be triggered, and all services of the terminal can only be transmitted under the default bearer, but for some specified services that require strict quality of service guarantee, for example: in the video service, the system cannot guarantee the service quality of the service data, and the user experience is seriously influenced.
Disclosure of Invention
The embodiment of the invention provides a method and a device for managing a special bearer, which aim to solve the problem that in the prior art, special bearer management needs to depend on a PCRF network element, and under an application scene without deploying the PCRF network element, terminal services can only be transmitted under default bearer, and the service quality of specified services cannot be ensured, so that the user experience is poor.
In order to solve the above problem, the present invention discloses a method for managing a dedicated bearer, which is applied to a user plane processing subsystem UPPS in a packet data connection gateway PGW, and the method includes:
receiving uplink data from a terminal or downlink data from a core network;
extracting characteristic information of uplink data or downlink data;
matching the characteristic information with a local characteristic information base;
if the matching is successful, sending a special bearer establishment request to a PSPS (signaling processing subsystem) in the PGW so that the PSPS checks the characteristic information carried by the special bearer establishment request, and returning a special bearer establishment response to the UPPS after the checking is successful;
and establishing the special bearer corresponding to the characteristic information according to the received special bearer establishing response.
In a preferred embodiment of the present invention, before the step of extracting the feature information of the upstream data or the downstream data, the method further includes:
detecting whether a policy and charging rule functional unit (PCRF) is deployed at a core network side;
and if not, extracting the characteristic information of the uplink data or the downlink data.
In a preferred embodiment of the present invention, after the step of extracting the feature information of the upstream data or the downstream data, the method further includes:
identifying whether one or more special bearers established by the UPPS have a target special bearer corresponding to the characteristic information according to the characteristic information;
if so, transmitting uplink data or downlink data through the target special bearer;
and if not, matching the characteristic information with a local characteristic information base.
In a preferred embodiment of the present invention, the characteristic information includes:
source address, destination address, source port, destination port, and protocol.
In a preferred embodiment of the present invention, after the step of establishing the dedicated bearer corresponding to the feature information according to the received dedicated bearer establishment response, the method further includes:
monitoring a special bearer;
if the data transmission event of the special bearer does not occur within the preset time is monitored, a special bearer deletion request is sent to the PSPS, and the special bearer deletion request carries characteristic information;
and if receiving a special bearer deletion response from the PSPS, deleting the special bearer.
According to another aspect of the present invention, there is provided a dedicated bearer management apparatus, which is applied to a user plane processing subsystem UPPS in a packet data connectivity gateway PGW, and the apparatus includes:
a receiving module, configured to receive uplink data from a terminal or downlink data from a core network;
the extraction module is used for extracting the characteristic information of the uplink data or the downlink data;
the matching module is used for matching the characteristic information with a local characteristic information base;
a sending module, configured to send a dedicated bearer establishment request to a PSPS of a signaling processing subsystem in the PGW if matching is successful, so that the PSPS performs verification according to feature information carried in the dedicated bearer establishment request, and returns a dedicated bearer establishment response to the UPPS after verification is successful;
and the establishing module is used for establishing the special bearing corresponding to the characteristic information according to the received special bearing establishing response.
In a preferred embodiment of the invention, the apparatus further comprises:
the detection module is used for detecting whether a policy and charging rule functional unit (PCRF) is deployed at a core network side;
if not, the extraction module extracts the characteristic information of the uplink data or the downlink data.
In a preferred embodiment of the invention, the apparatus further comprises:
the identification module is used for identifying whether one or more special bearers established by the UPPS have target special bearers corresponding to the characteristic information or not according to the characteristic information;
the transmission module is used for transmitting uplink data or downlink data through the target special bearer if the uplink data or the downlink data is true;
if not, the matching module matches the feature information with the local feature information base.
In a preferred embodiment of the present invention, the characteristic information includes:
source address, destination address, source port, destination port, and protocol.
In a preferred embodiment of the invention, the apparatus further comprises:
the monitoring module is used for monitoring the special bearer;
a deleting module, configured to send a dedicated bearer deletion request to the PSPS if it is monitored that the dedicated bearer does not generate a data transmission event within a predetermined time, where the dedicated bearer deletion request carries characteristic information;
the deletion module is further configured to delete the dedicated bearer if receiving a dedicated bearer deletion response from the PSPS.
Compared with the prior art, the method receives the uplink data from the terminal or the downlink data from the core network; extracting characteristic information of uplink data or downlink data; matching the characteristic information with a local characteristic information base; if the matching is successful, sending a special bearer establishment request to a PSPS (signaling processing subsystem) in the PGW so that the PSPS checks the characteristic information carried by the special bearer establishment request, and returning a special bearer establishment response to the UPPS after the checking is successful; and establishing the special bearer corresponding to the characteristic information according to the received special bearer establishing response. Therefore, under the application scene without deploying the PCRF network element, the corresponding special bearer is established for the service data with the specified characteristic information, the service quality of the service is ensured, and the user experience is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a flowchart of a method for managing dedicated bearers according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating specific steps of a method for managing a dedicated bearer according to an embodiment of the present invention;
fig. 3 is a block diagram of a dedicated bearer management apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, a flowchart of a management method for a dedicated bearer according to an embodiment of the present invention is shown, where the method is applied to a User Plane Processing Subsystem (UPPS) in a packet Data connection Gateway (pdn) (public Data network) Gateway (PGW), and specifically may include the following steps:
Specifically, in the embodiment of the present invention, a UPPS (hereinafter referred to as UPPS) in the PGW receives uplink data from the terminal or downlink data from the core network.
And 102, extracting the characteristic information of the uplink data or the downlink data.
Specifically, in the embodiment of the present invention, the UPPS identifies the received uplink data or downlink data, and extracts the feature information carried by the received uplink data or downlink data.
And 103, matching the characteristic information with a local characteristic information base.
Specifically, in the embodiment of the present invention, the UPPS locally stores the feature information base. The feature information base is pre-configured by the user. In one embodiment, the user may specify that the service data corresponding to some feature information needs to be transmitted through a dedicated bearer, and then may input the feature information in the feature information library.
The UPPS matches the extracted feature information with a local feature information base. Specifically, the matching process may be to match the feature information with feature information in the feature information library one by one.
And step 104, if the matching is successful, sending a special bearer establishment request to a signaling processing subsystem PSPS in the PGW, so that the PSPS checks according to the characteristic information carried by the special bearer establishment request, and returning a special bearer establishment response to the UPPS after the checking is successful.
Specifically, in the embodiment of the present invention, if the UPPS successfully matches the feature information with any feature information in the feature information base, it is preliminarily determined that a dedicated bearer can be established for service data (uplink data or downlink data) corresponding to the feature information. Subsequently, the UPPS sends a dedicated bearer establishment request to a signaling processing subsystem (PSPS) in the PGW, where the dedicated bearer establishment request carries the extracted feature information.
Subsequently, the PSPS receives the dedicated bearer establishment request and verifies the characteristic information carried by the dedicated bearer establishment request to further determine whether the dedicated bearer can be established for the service data corresponding to the characteristic information. In an embodiment of the present invention, the PSPS side records configuration information for establishing the dedicated bearer, the configuration information is similar to the feature information library of the UPPS side, and in an embodiment, the configuration information records a corresponding relationship between the feature information of the established dedicated bearer and the dedicated bearer information, and feature information that allows the establishment of the dedicated bearer but does not establish the dedicated bearer. And the PSPS verifies the received characteristic information according to the configuration information so as to determine whether the characteristic information establishes a special bearer or not, if so, the verification fails, and if not, the verification succeeds. And the PSPS can further determine whether the matching result of the UPPS end is correct, and if not, the verification fails. If yes, the verification is successful. In one embodiment, if the check result is incorrect, a dedicated bearer establishment failure response is returned to the UPPS.
In the embodiment of the present invention, if the PSPS is successfully verified, a dedicated bearer establishment response is returned to the UPPS, where the response carries the above-mentioned characteristic information.
And 105, establishing the special bearer corresponding to the characteristic information according to the received special bearer establishment response.
Specifically, in the embodiment of the present invention, the UPPS receives the dedicated bearer establishment response, and establishes the dedicated bearer corresponding to the characteristic information according to the characteristic information carried by the dedicated bearer establishment response. And transmitting the service data corresponding to the characteristic information on the special bearer.
In summary, in the technical solution in the embodiments of the present invention, uplink data from a terminal or downlink data from a core network is received; extracting characteristic information of uplink data or downlink data; matching the characteristic information with a local characteristic information base; if the matching is successful, sending a special bearer establishment request to a PSPS (signaling processing subsystem) in the PGW so that the PSPS checks the characteristic information carried by the special bearer establishment request, and returning a special bearer establishment response to the UPPS after the checking is successful; and establishing the special bearer corresponding to the characteristic information according to the received special bearer establishing response. Therefore, under the application scene without deploying the PCRF network element, the corresponding special bearer is established for the service data with the specified characteristic information, the service quality of the service is ensured, and the user experience is effectively improved.
In addition, in a preferred embodiment of the present invention, before the step of extracting the feature information of the uplink data or the downlink data, the method further includes:
detecting whether a policy and charging rule functional unit (PCRF) is deployed at a core network side;
and if not, extracting the characteristic information of the uplink data or the downlink data.
In a preferred embodiment of the present invention, after the step of extracting the feature information of the upstream data or the downstream data, the method further includes:
identifying whether one or more special bearers established by the UPPS have a target special bearer corresponding to the characteristic information according to the characteristic information;
if so, transmitting uplink data or downlink data through the target special bearer;
and if not, matching the characteristic information with a local characteristic information base.
In a preferred embodiment of the present invention, the characteristic information includes:
source address, destination address, source port, destination port, and protocol.
In a preferred embodiment of the present invention, after the step of establishing the dedicated bearer corresponding to the feature information according to the received dedicated bearer establishment response, the method further includes:
monitoring a special bearer;
if the data transmission event of the special bearer does not occur within the preset time is monitored, a special bearer deletion request is sent to the PSPS, and the special bearer deletion request carries characteristic information;
and if receiving a special bearer deletion response from the PSPS, deleting the special bearer.
In order to make those skilled in the art better understand the dedicated bearer management method of the present invention, the following detailed description is made with reference to specific embodiments.
Fig. 2 is a flowchart illustrating specific steps of a method for managing a dedicated bearer in an embodiment of the present invention, where in fig. 2:
Specifically, in the embodiment of the present invention, a UPPS (hereinafter referred to as UPPS) in the PGW receives uplink data from the terminal or downlink data sent by the core network.
Specifically, in an embodiment of the present invention, the UPPS may detect whether the core network side is deployed with the PCRF. If so, a method for managing the dedicated bearer by using the PCRF in the prior art can be preferentially selected. Namely, the PCRF confirms establishment of the dedicated bearer according to the data received by the UPPS, and sends a dedicated bearer establishment request to the PSPS, so that the PSPS issues a dedicated bearer establishment instruction to the UPPS according to the establishment request, and the UPPS establishes a corresponding dedicated bearer according to the instruction. In an embodiment of the present invention, the UPPS may determine whether the core network is deployed with a PCRF network element by detecting whether the local PGW is configured with an RX interface.
If it is detected that the core network does not deploy the PCRF, step 203 is entered.
Specifically, in the embodiment of the present invention, the UPPS extracts feature information of the received uplink data or downlink data. Wherein, the characteristic information includes but is not limited to: source address, destination address, source port, destination port, and protocol.
It should be noted that, in the embodiment of the present invention, the characteristic information may also be used to identify the specified type of service data. For example: when the terminal A sends the video data and the ordinary service data to the UPPS, the source addresses in the characteristic information carried by the video data and the ordinary service data are the same, and the destination addresses, the protocols and the like are different, so that the appointed service data needing to establish the special bearer can be distinguished through the characteristic information. The user can record the characteristic information corresponding to the service data needing to establish the special bearer in the characteristic information base of the UPPS in advance.
And step 204, identifying whether one or more special bearers established by the UPPS have the target special bearer corresponding to the characteristic information according to the characteristic information.
Specifically, in the embodiment of the present invention, the UPPS identifies, according to the feature information, whether a target dedicated bearer corresponding to the feature information exists in one or more dedicated bearers established by the UPPS.
Specifically, in the embodiment of the present invention, the established dedicated bearer has a dedicated bearer instance number, and the UPPS records the dedicated bearer instance number and the corresponding feature information locally. When the UPPS receives the service data and extracts the characteristic information, whether the corresponding special bearing example number exists can be inquired according to the characteristic information. If yes, determining that a target special bearer corresponding to the characteristic information is established, and transmitting the service data corresponding to the characteristic information through the target special bearer by the UPPS.
If the corresponding dedicated bearer instance number does not exist, step 205 is entered.
And step 206, if the matching is successful, sending a dedicated bearer establishment request to a signaling processing subsystem PSPS in the PGW, so that the PSPS performs verification according to the characteristic information carried by the dedicated bearer establishment request, and returning a dedicated bearer establishment response to the UPPS after the verification is successful.
Specifically, in the embodiment of the present invention, if the UPPS successfully matches the feature information with any feature information in the feature information base, it is preliminarily determined that a dedicated bearer can be established for service data (uplink data or downlink data) corresponding to the feature information. Subsequently, the UPPS sends a dedicated bearer establishment request to a signaling processing subsystem (PSPS) in the PGW, where the dedicated bearer establishment request carries the extracted feature information.
Subsequently, the PSPS receives the dedicated bearer establishment request and verifies the characteristic information carried by the dedicated bearer establishment request to further determine whether the dedicated bearer can be established for the service data corresponding to the characteristic information. In an embodiment of the present invention, the PSPS side records configuration information for establishing the dedicated bearer, the configuration information is similar to the feature information library of the UPPS side, and in an embodiment, the configuration information records a corresponding relationship between the feature information of the established dedicated bearer and the dedicated bearer information, and feature information that allows the establishment of the dedicated bearer but does not establish the dedicated bearer. And the PSPS verifies the received characteristic information according to the configuration information so as to determine whether the characteristic information establishes a special bearer or not, if so, the verification fails, and if not, the verification succeeds. And the PSPS can further determine whether the matching result of the UPPS end is correct, and if not, the verification fails. If yes, the verification is successful. In one embodiment, if the check result is incorrect, a dedicated bearer establishment failure response is returned to the UPPS.
In the embodiment of the present invention, if the PSPS is successfully verified, a dedicated bearer establishment response is returned to the UPPS, where the response carries the above-mentioned characteristic information.
In addition, in a preferred embodiment of the present invention, the UPPS side may be provided with a dedicated bearer establishment frequency management and control mechanism. That is, after sending a dedicated bearer establishment request to the PSPS for one piece of feature information, the UPPS waits for a predetermined time period and continues sending if the dedicated bearer establishment request is not received. And if the service data corresponding to the same characteristic information is received again within the preset time length, not sending the request to the PSPS. Therefore, the resource utilization rate is effectively improved, and the system burden is reduced.
Specifically, in the embodiment of the present invention, the UPPS receives the dedicated bearer establishment response, and establishes the dedicated bearer corresponding to the characteristic information according to the characteristic information carried by the dedicated bearer establishment response. And transmitting the service data corresponding to the characteristic information on the special bearer. In the embodiment of the present invention, the PSPS further sends related information of dedicated bearer establishment to other network elements, so that the other network elements configure configuration information and the like corresponding to the dedicated bearer.
In addition, in a preferred embodiment of the present invention, the UPPS may further have a listening mechanism, specifically:
the UPPS listens for the dedicated bearer. In one embodiment, if it is monitored that the dedicated bearer does not have a data transmission event within a predetermined time, a dedicated bearer deletion request is sent to the PSPS, where the dedicated bearer deletion request carries characteristic information corresponding to the dedicated bearer.
And then, if the UPPS receives the special bearer deletion response of the PSPS, deleting the special bearer. Therefore, the utilization rate of air interface resources is effectively improved, and the system burden is reduced.
In summary, in the technical solution in the embodiments of the present invention, uplink data from a terminal or downlink data from a core network is received; extracting characteristic information of uplink data or downlink data; matching the characteristic information with a local characteristic information base; if the matching is successful, sending a special bearer establishment request to a PSPS (signaling processing subsystem) in the PGW so that the PSPS checks the characteristic information carried by the special bearer establishment request, and returning a special bearer establishment response to the UPPS after the checking is successful; and establishing the special bearer corresponding to the characteristic information according to the received special bearer establishing response. Therefore, under the application scene without deploying the PCRF network element, the corresponding special bearer is established for the service data with the specified characteristic information, the service quality of the service is ensured, and the user experience is effectively improved.
Referring to fig. 3, a block diagram of a structure of a dedicated bearer management apparatus according to an embodiment of the present invention is shown, where the apparatus is applied to a user plane processing subsystem UPPS in a packet data connection gateway PGW, and specifically includes the following modules:
a receiving module 301, configured to receive uplink data from a terminal or downlink data from a core network;
an extracting module 302, configured to extract feature information of uplink data or downlink data;
a matching module 303, configured to match the feature information with a local feature information base;
a sending module 304, configured to send a dedicated bearer establishment request to a PSPS of a signaling processing subsystem in the PGW if matching is successful, so that the PSPS performs verification according to feature information carried in the dedicated bearer establishment request, and returns a dedicated bearer establishment response to the UPPS after verification is successful;
the establishing module 305 is configured to establish a dedicated bearer corresponding to the characteristic information according to the received dedicated bearer establishment response.
In a preferred embodiment of the invention, the apparatus further comprises:
a detection module (not shown in the figure) configured to detect whether a policy and charging rule functional unit PCRF is deployed on a core network side;
if not, the extraction module 302 extracts feature information of the uplink data or the downlink data.
In a preferred embodiment of the invention, the apparatus further comprises:
an identifying module (not shown in the figure) for identifying whether a target dedicated bearer corresponding to the feature information exists in the one or more dedicated bearers established by the UPPS according to the feature information;
a transmission module (not shown in the figure) configured to transmit uplink data or downlink data through the target dedicated bearer if the uplink data or the downlink data is received;
if not, the matching module 304 matches the feature information with the local feature information base.
In a preferred embodiment of the present invention, the characteristic information includes:
source address, destination address, source port, destination port, and protocol.
In a preferred embodiment of the invention, the apparatus further comprises:
a monitoring module (not shown in the figure) for monitoring the dedicated bearer;
a deleting module (not shown in the figure), configured to send a dedicated bearer deleting request to the PSPS if it is monitored that the dedicated bearer does not have a data transmission event within a predetermined time, where the dedicated bearer deleting request carries characteristic information;
the deletion module is further configured to delete the dedicated bearer if receiving a dedicated bearer deletion response from the PSPS.
In summary, the apparatus in the embodiment of the present invention receives uplink data from a terminal or downlink data from a core network; extracting characteristic information of uplink data or downlink data; matching the characteristic information with a local characteristic information base; if the matching is successful, sending a special bearer establishment request to a PSPS (signaling processing subsystem) in the PGW so that the PSPS checks the characteristic information carried by the special bearer establishment request, and returning a special bearer establishment response to the UPPS after the checking is successful; and establishing the special bearer corresponding to the characteristic information according to the received special bearer establishing response. Therefore, under the application scene without deploying the PCRF network element, the corresponding special bearer is established for the service data with the specified characteristic information, the service quality of the service is ensured, and the user experience is effectively improved.
For the apparatus embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in a wireless-capable acquisition device according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The method and apparatus for managing dedicated bearers provided by the present invention are described in detail above, and a specific example is applied in the present disclosure to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A management method of dedicated bearer is applied to a user plane processing subsystem UPPS in a packet data connection gateway (PGW), and the method comprises the following steps:
receiving uplink data from a terminal or downlink data from a core network;
extracting characteristic information of the uplink data or the downlink data;
matching the characteristic information with a local characteristic information base;
if the matching is successful, sending a dedicated bearer establishment request to a signaling processing subsystem (PSPS) in the PGW, so that the PSPS performs verification according to the characteristic information carried by the dedicated bearer establishment request, and returning a dedicated bearer establishment response to the UPPS after the verification is successful;
establishing a special bearer corresponding to the characteristic information according to the received special bearer establishing response;
the step of extracting the feature information of the uplink data or the downlink data includes:
detecting whether a policy and charging rule functional unit (PCRF) is deployed at the core network side;
if not, extracting the characteristic information of the uplink data or the downlink data;
wherein the characteristic information is used for identifying the specified type of service data.
2. The method according to claim 1, wherein after the step of extracting the feature information of the uplink data or the downlink data, the method further comprises:
identifying whether a target special bearer corresponding to the characteristic information exists in one or more special bearers established by the UPPS according to the characteristic information;
if so, transmitting the uplink data or the downlink data through the target special bearer;
and if not, matching the characteristic information with a local characteristic information base.
3. The method of claim 1, wherein the feature information comprises:
source address, destination address, source port, destination port, and protocol.
4. The method according to claim 1, wherein after the step of establishing the dedicated bearer corresponding to the feature information according to the received dedicated bearer establishment response, the method further comprises:
monitoring the special bearer;
if the special bearer is monitored not to generate a data transmission event within a preset time, sending a special bearer deletion request to the PSPS, wherein the special bearer deletion request carries the characteristic information;
and if a special bearer deletion response from the PSPS is received, deleting the special bearer.
5. An apparatus for managing dedicated bearers, applied to a user plane processing subsystem UPPS in a packet data connectivity gateway, PGW, the apparatus comprising:
a receiving module, configured to receive uplink data from a terminal or downlink data from a core network;
the extraction module is used for extracting the characteristic information of the uplink data or the downlink data;
the matching module is used for matching the characteristic information with a local characteristic information base;
a sending module, configured to send a dedicated bearer establishment request to a signaling processing subsystem PSPS in the PGW if matching is successful, so that the PSPS performs verification according to the feature information carried in the dedicated bearer establishment request, and returns a dedicated bearer establishment response to the UPPS after verification is successful;
the establishing module is used for establishing a special bearing corresponding to the characteristic information according to the received special bearing establishing response;
the apparatus further comprises:
the detection module is used for detecting whether a policy and charging rule functional unit (PCRF) is deployed at the core network side;
if not, the extraction module extracts the feature information of the uplink data or the downlink data;
wherein the characteristic information is used for identifying the specified type of service data.
6. The apparatus of claim 5, further comprising:
an identification module, configured to identify, according to the feature information, whether a target dedicated bearer corresponding to the feature information exists in one or more dedicated bearers established by the UPPS;
a transmission module, configured to transmit the uplink data or the downlink data through the target dedicated bearer if the target dedicated bearer is the target dedicated bearer;
and if not, the matching module matches the characteristic information with a local characteristic information base.
7. The apparatus of claim 5, wherein the feature information comprises:
source address, destination address, source port, destination port, and protocol.
8. The apparatus of claim 5, further comprising:
a monitoring module, configured to monitor the dedicated bearer;
a deleting module, configured to send a dedicated bearer deletion request to the PSPS if it is monitored that the dedicated bearer does not generate a data transmission event within a predetermined time, where the dedicated bearer deletion request carries the characteristic information;
the deleting module is further configured to delete the dedicated bearer if a dedicated bearer deletion response is received from the PSPS.
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