WO2013071860A1

WO2013071860A1 - Policy deciding method and network device

Info

Publication number: WO2013071860A1
Application number: PCT/CN2012/084569
Authority: WO
Inventors: 张爱琴; 吴晓波; 靳维生
Original assignee: 华为技术有限公司
Priority date: 2011-11-14
Filing date: 2012-11-14
Publication date: 2013-05-23
Also published as: CN103108362A; CN103108362B

Abstract

The present invention relates to the technical field of communications. Disclosed in an embodiment of the present invention are a policy deciding method and network device, for improving the utilization rate of network resources. The method comprises: acquiring basic reference information for making a policy decision; acquiring the network state information of a target cell; deciding a policy according to the network state information of the target cell and the basic reference information for making a policy decision. The embodiment of the present invention is primarily used in network systems.

Description

Method and network device for making policy decision The present application claims to be filed on November 14, 2011, the Chinese Patent Office, the application number is 201110359732.6, and the invention title is "a method for making policy decisions and network equipment" Priority is hereby incorporated by reference in its entirety. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and network device for making policy decisions.

Background technique

At present, LTE (Long Term Evolution) system, as a new generation wireless communication standard, has the advantages of high transmission speed, high spectrum utilization, and low transmission delay, and can provide different services for mobile terminals. For example, streaming P2P (Peer-to-Peer) application services, network push-based services, and the like.

However, when the subject of the Policy and Charging Rules Function (PCRF) in the LTE system makes policy decisions for the above services, only some basic decision information of policy decisions, such as subscription information, application layer information, and service applications, are considered. Information, etc. This policy decision method that only considers the basic reference information of the policy decision will cause great pressure on the air interface bandwidth and the backbone network, causing the air interface bandwidth and the backbone network to be blocked in stages, so that the network resources cannot be fully utilized.

Summary of the invention

The embodiments of the present invention provide a method for determining a policy and a network device, which improves the utilization of network resources.

The embodiment of the invention uses the following technical solutions:

On the one hand, it provides a method for making strategic decisions, including:

Obtain basic reference information for policy decision;

Obtaining network status information of the target cell;

Determining according to network state information of the target cell and basic decision information of the policy decision Slight decision.

In one aspect, a network device is provided, including:

a first obtaining unit, configured to obtain basic decision information of policy decision;

a second acquiring unit, configured to acquire network state information of the target cell;

And a decision unit, configured to perform a policy decision according to the network state information of the target cell and the policy decision basic reference information.

A method and a network device for performing policy decision according to an embodiment of the present invention, when performing a policy decision, a PCRF entity considers not only the basic reference information of the policy decision but also the network state information of the target cell, which enables the PCRF entity to perform the policy according to the target. The network state information of the cell is reasonably determined by the policy. For example, when the network of the target cell is congested, the urgency of the service may be delayed, or the network offloading policy may be triggered, thereby effectively alleviating network congestion and improving. The utilization of network resources. Therefore, the technical solution of the embodiment of the present invention improves the utilization of network resources.

Obtaining network status information of the target cell;

And transmitting the network state information of the target cell to the PCRF entity, so that the PCRF entity performs policy decision according to the network state information of the target cell and the policy decision basic reference information.

In one aspect, a network device is provided, including:

An acquiring unit, configured to acquire network state information of the target cell;

And an information sending unit, configured to send network state information of the target cell to the PCRF entity, so that the PCRF entity performs policy decision according to network state information of the target cell and policy decision basic reference information.

The method and network device for performing policy decision according to the embodiment of the present invention, the PCEF entity may provide the network state information of the target cell for the PCRF entity, so that the PCRF entity not only considers the basic reference information of the policy decision when making policy decisions. Also considering the network status information of the target cell, which enables the PCRF entity to reasonably make policy decisions based on the network status information, thereby effectively It alleviates network congestion and improves the utilization of network resources. Therefore, the utilization of the network resources is improved by using the technical solution of the embodiment of the present invention.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly described, and the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic diagram of basic reference information of a PCRF entity acquisition policy decision in the prior art; FIG. 2 is a flowchart of a method for policy decision according to an embodiment of the present invention;

3 is a flowchart of a method for policy decision according to still another embodiment of the present invention;

4 is a flow chart of acquiring, by a PCEF entity, network state information of a target cell according to another embodiment of the present invention;

FIG. 5 is a flowchart of a method for policy decision and execution according to still another embodiment of the present invention; FIG.

6 is a flowchart of a method for policy decision according to still another embodiment of the present invention;

FIG. 7 is still another flowchart of a method for policy decision according to still another embodiment of the present invention; FIG.

FIG. 8 is a flowchart of a method for policy decision according to still another embodiment of the present invention; FIG.

FIG. 9 is still another flowchart of a method for policy decision according to still another embodiment of the present invention; FIG.

10 is a flowchart of a method for policy decision according to still another embodiment of the present invention;

FIG. 11 is a schematic diagram of a network device according to still another embodiment of the present invention; FIG.

FIG. 12 is still another schematic diagram of a network device according to another embodiment of the present invention; FIG.

FIG. 13 is a schematic diagram of a network device according to still another embodiment of the present invention; FIG.

FIG. 14 is still another schematic diagram of a network device according to another embodiment of the present invention; FIG.

FIG. 15 is still another schematic diagram of a network device according to another embodiment of the present invention; FIG.

16 is a schematic diagram of a network device according to still another embodiment of the present invention;

FIG. 17 is still another schematic diagram of a network device according to still another embodiment of the present invention.

detailed description

The technical solution in the embodiment of the present invention will be clarified in the following with reference to the accompanying drawings in the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

Currently, as shown in FIG. 1, the LTE system includes a PCRF entity 11, an SPR (Subscriber Profile Repository) entity 12, an AF (Application Function) entity 13, and a PCEF (Policy and Charging Enforcement Function). Fee execution function) entity 14, OCS (Online charging system) 15, OFCS (Offline charging system) 16, BBERF (Bearer Binding and Event Reporting Function) Entity 17, TDF (Traffic Detection Function) Entity 18, etc.

The PCRF entity is the center of the PCC (Policy and Charging Control), and is a control plane node device, and is also an entity controlled by the process policy under the PCC architecture. The PCEF entity is a logical function node of the PCC. Specifically, the PCEF entity may be a PDN GW (Packet Data Network Gateway), where the PDN GW is a QoS (Quality of Service) execution and bearer management node. The BBERF entity is also a logical function node of the PCC. Specifically, the BBERF entity may be an SGW (Serving Gateway).

The basic decision information of the policy decision that the PCRF entity considers when making policy decisions includes: subscription information, application layer information, charging control information, policy and charging rule information, service application information, and PCRF predefined information. When the PCRF entity performs policy decision, the subscription information, the application layer information, the charging control information, the policy and charging rule information, and the service application information may be utilized according to specific application scenarios. Or one or several policy decision basic reference information in the PCRF predefined information and network state information of the target cell to make a policy decision.

Specifically, in the LTE system shown in FIG. 1, the PCRF entity 11 can obtain the subscription information from the SPR entity 12 through the Sp interface. For example, the PCRF entity may send a subscription data request message to the SPR entity, and then receive a subscription data reply message sent by the SPR entity. The subscription data reply message includes the subscription information. Then, the PCRF entity may parse the subscription data reply message and acquire the subscription information. The PCRF entity 11 may acquire the application layer information from the AF entity 13 through an Rx interface. The PCEF entity 14 can obtain the online charging control information from the OCS 15 through the Gy interface, obtain the offline charging control information from the OFCS 16 through the Gz interface, and send the online charging control information and the offline charging control information to the Gx interface to the The PCRF entity 11. The PCRF entity 11 can obtain the policy and charging rule information from the BBERF entity 17 through the Gxx interface. The PCRF entity 11 may obtain the service application information from the TDF entity 18 through an Sd interface. In addition, the PCRF entity 11 may acquire PCRF predefined information by itself.

To improve the utilization of the network resources, as shown in FIG. 2, the first embodiment of the present invention provides a method for making policy decisions, including the following steps:

21. The PCRF entity obtains basic reference information for policy decision.

The process of acquiring the basic decision information of the policy decision by the PCRF entity may be referred to FIG. 1 .

22. The PCRF entity acquires network state information of the target cell.

In a specific application, the network status information of the target cell and the basic decision information of the policy decision may be collectively referred to as policy decision reference information. In this embodiment, the PCRF entity obtains the network state information of the target cell by using the PCEF entity, and the specific acquiring manner may be any one of the following three manners, specifically:

Manner 1: When the connection session request message sent by the PCEF entity directly carries the network state information of the target cell, the PCRF entity may parse the connection session request message and directly obtain network state information of the target cell.

Manner 2: When the connection session request message sent by the PCEF entity carries the obtained cell network state information list, the PCRF entity may obtain the target indirectly according to the cell network state information list and the connection session request message. Network status information of the cell;

Manner 3: When the connection session request message sent by the PCEF entity does not carry the target cell When the network status information does not carry the obtained cell network status information list, the PCRF entity may actively acquire the network status information of the target cell by the PCEF entity.

The network status information of the target cell may indicate whether the network of the target cell is congested. Further, the network status information of the target cell may also be represented by a network congestion level of the target cell. For example, the network state of the target cell may be divided into four congestion levels, which are a first level, a second level, a third level, and a fourth level, respectively, wherein the network congestion status represented by the four levels is gradually increased. The first level indicates that the network of the target cell is lightly loaded, the second level indicates that the network of the target cell is slightly congested, and the third level indicates that the network of the target cell is relatively congested, The fourth level indicates that the network of the target cell is heavily congested.

23. The PCRF entity performs policy decision according to network state information of the target cell and the policy decision basic reference information.

When the PCRF entity performs a policy decision, the subscription information, the application layer information, the charging control information, the policy and charging rule information, and the service application information may be utilized according to a specific application situation. Or one or several policy decision basic reference information in the PCRF predefined information and network state information of the target cell to make a policy decision. For example, when the network of the target cell is congested, the services with low urgency may be delayed, or the network offloading policy may be triggered, thereby effectively alleviating the congestion of the network, thereby improving the utilization of network resources, which makes the PCRF The entity can reasonably make policy decisions based on the network state information of the target cell.

It can be seen from the above description that the PCRF entity not only considers the policy decision basic reference information but also the network state information of the target cell when making policy decisions, which enables the PCRF entity to reasonably make policy decisions according to the network state information of the target cell. For example, when the network of the target cell is congested, some urgency services may be delayed, or the network offloading policy may be triggered, thereby effectively alleviating network congestion and improving network resource utilization. Therefore, the utilization of the network resources is improved by using the technical solution of the embodiment of the present invention.

As shown in FIG. 3, the second embodiment of the present invention provides a method for performing policy decision, which includes the following steps: 31. The PCEF entity acquires network state information of the target cell.

As shown in FIG. 4, the process of acquiring the network state information of the target cell by the PCEF entity may include the following specific steps:

311. The terminal sends a PDN (Packet Data Network) connection establishment request message to the MME (Mobility Management Entity), where the PDN connection setup request message carries network state information of the target cell where the terminal is located.

In this embodiment, the terminal may also send network status information of the target cell in which it is located to the base station, and then send, by the base station, network status information of the target cell to the target.

312. The ΜΜΕ parses the PDN connection setup request message and acquires network state information of the target cell.

313. The CSR sends a CSR (Create Session Request) message to the BBERF entity, where the CSR message carries network status information of the target cell.

314. The BBERF entity parses the CSR message and obtains network state information of the target cell. The message carries network status information of the target cell.

316. The PCEF entity parses the CSR message and obtains network state information of the target cell.

In addition, after acquiring the network state information of the at least two cells according to the foregoing steps 311 to 316, the PCEF entity sorts the network state information of the at least two cells to obtain the cell network state information list.

32. The PCEF entity sends network state information of the target cell to a PCRF entity, so that the PCRF entity performs policy decision according to network state information of the target cell.

In this embodiment, the manner in which the PCEF entity sends the network state information of the target cell to the PCRF entity may be:

Manner 1: The PCEF entity sends a connection session request message to the PCRF entity, where The connection session request message carries network status information of the target cell. Further, the connection session request message may further carry identifier information of the target cell.

After the PCEF entity obtains the cell network state information list including the network state information of the target cell, the PCEF entity sends a connection session request message to the PCRF entity, where the connection session request message carries the cell network state information. List.

In a third mode, the PCEF entity first sends a connection session request message to the PCRF entity, so that the PCRF entity acquires the identity information of the target cell according to the connection session request message. Then, the PCEF entity receives the a cell network status information request message sent by the PCRF entity according to the identifier information of the target cell; further, the PCEF entity sends a cell network status information reply message to the PCRF entity, where the cell network status information reply message carries the Network status information of the target cell.

It can be seen from the above description that the PCEF entity can provide network status information for the PCRF entity, so that the PCRF entity not only considers the policy decision basic reference information but also the network state information of the target cell when making policy decisions, which makes the PCRF entity The policy decision can be reasonably made according to the network state information of the target cell, thereby effectively alleviating network congestion and improving the utilization of network resources. Therefore, the utilization rate of the network resources is improved by using the technical solution of the embodiment of the present invention.

As shown in FIG. 5, Embodiment 3 of the present invention provides a method for performing policy decision and execution, including the following steps:

51. The TDF entity acquires network state information of the target cell by the PCRF entity.

In this embodiment, the TDF entity may receive a TDF session request message sent by the PCRF entity, where the TDF session request information carries network state information of the target cell. Then, the TDF entity parses the TDF session request message and acquires network status information of the target cell.

The TDF session request message may include a TDF session establishment request message, a TDF session modification request message, or a TDF session suspension request message. 52. The TDF entity performs a quality of service (QoS) rule decision according to the network state information of the target cell, and performs a quality of service QoS rule.

It can be seen from the above description that the TDF entity considers the network state information of the target cell when performing the QoS decision and performing the QoS rule, which enables the TDF entity to flexibly and correctly according to the network state information of the target cell. QoS decision-making without having to obtain possible updates of QoS rules from the PCRF frequently, thereby effectively alleviating network congestion and thereby improving network resource utilization. Therefore, the utilization rate of the network resources is improved by using the technical solution of the embodiment of the present invention. Said.

As shown in FIG. 6, the fourth embodiment of the present invention provides a method for performing policy decision, which includes the following steps:

61. The PCEF entity acquires network state information of the target cell.

For the process of acquiring the network state information of the target cell by the PCEF entity, refer to step 311 to step 316 in the foregoing Embodiment 2.

62. The PCEF entity sends an IP-CAN (IP Connectivity Access Network) session request message to the PCRF entity, where the IP-CAN session request message carries network state information of the target cell.

In addition, in this embodiment, the IP-CAN session request message may further carry the identification information of the target cell.

The IP-CAN session request message may be an IP-CAN session establishment request message, or the IP-CAN session request message may be an IP-CAN session modification request message.

63. The PCRF entity parses the IP-CAN session request message and acquires network state information of the target cell.

64. The PCRF entity acquires basic decision information of policy decision.

The process of obtaining the basic decision information of the policy decision by the PCRF entity and the prior art The process is the same and will not be repeated here.

65. The PCRF entity performs policy decision according to network state information of the target cell and the policy decision basic reference information.

In this embodiment, the PCRF entity may perform policy decision according to one or more information in the policy decision basic reference information and network state information of the target cell.

Specifically, the PCRF entity may send a service to the terminal in the target cell according to the network state information of the target cell. Specifically, when the network of the target cell is not congested or the load is small, the PCRF entity may deliver a P2P service to the terminal for the requirement of the terminal in the target cell; when the network congestion or load of the target cell If the network is large, the PCRF entity may delay sending P2P services to the terminal.

On the basis of FIG. 6, as shown in FIG. 7, in order to enable the PCRF entity to obtain the latest network state information of the target cell, before step 61 in the fourth embodiment, the method may further include:

60. The PCRF entity loads a cell state change trigger report to the PCEF entity.

Further, the PCEF entity detects whether the network status information of the target cell changes according to a preset frequency. For example, the PCEF entity may detect whether the network status information of the target cell changes every Is. If the PCEF entity detects that the network status information of the target cell is changed, the latest network status information of the target cell may be obtained through steps 311 to 316.

In addition, in order to improve the flexibility and correctness of the quality of service decision and execution of the TDF entity, the PCRF entity may further send network state information of the target cell to the TDF entity, And causing the TDF entity to make a decision of a QoS rule by using network state information of the target cell and perform execution of a quality of service QoS rule.

Specifically, the process of acquiring the network state information of the target cell by the TDF entity may refer to the description in Embodiment 3 of the present invention.

As shown in FIG. 8, the fifth embodiment of the present invention provides a method for performing policy decision, which includes the following steps:

81. The PCEF entity acquires a cell network status information list.

In this embodiment, after acquiring the network state information of the at least two cells, the PCEF entity sorts the network state information of the at least two cells to obtain a cell network state information list.

As shown in Table 1, the cell network status information list may include identification information of the cell, and network status information of the cell corresponding to the identity information of the cell. The network status information of the cell may be represented by a network congestion level. For example, the network congestion level of the cell whose identification information is 0001 is the first level, and the network congestion level of the cell whose identification information is 0002 is the third level.

Table 1

For example, the process of acquiring the network state information of each cell by the PCEF entity may refer to step 311 to step 316 in the foregoing Embodiment 2.

82. The PCEF entity sends an IP-CAN session request message to the PCRF entity, where The IP-CAN session request message carries the cell network status information list.

The IP-CAN session request message may include an IP-CAN session establishment request message or an IP-CAN session modification request message.

83. The PCRF entity acquires identity information of the target cell and the cell network state information list according to the IP-CAN session request message.

The manner in which the PCRF entity obtains the identification information of the target cell according to the IP-CAN session request message may be:

Manner 1: If the IP-CAN session request message carries the identifier information of the target terminal, the PCRF entity may parse the IP-CAN session request message and obtain the identifier information of the target terminal, and further according to the target The identification information of the terminal acquires the identification information of the target cell where the target terminal is located;

Manner 2: If the IP-CAN session request message does not carry the identifier information of the target terminal, the PCRF entity may obtain the identifier information of the target terminal that initiates the IP-CAN session request message, and according to the target terminal The identification information acquires identification information of a target cell where the target terminal is located.

Meanwhile, the PCRF entity may parse the IP-CAN session request message and obtain the cell network status information list.

84. The PCRF entity detects, according to the identifier information of the target cell, whether the cell network state information list includes network state information of the target cell corresponding to the identifier information of the target cell.

If the cell network status information list includes network status information of the target cell, proceed to step 85. If the cell network state information list does not include the network state information of the target cell, the PCEF entity acquires network state information of the target cell according to the identity information of the target cell, for example, to other nodes (for example, the entire network) The cell status summary node) requests network status information or end process of the target cell.

85. The PCRF entity is configured according to the cell network state information list and the target cell. The identification information acquires network status information of the target cell.

Table 1 is taken as an example. If the identifier information of the target cell is 0002, the network congestion level of the target cell is determined to be a third level by using the query table 1, and the PCRF entity determines the target at this time. The network of the cell is relatively congested.

86. The PCRF entity acquires basic decision information of policy decision.

The process of acquiring the basic decision information of the policy decision by the PCRF entity is the same as that of the prior art, and details are not described herein again.

87. The PCRF entity performs policy decision according to network state information of the target cell and the policy decision basic reference information.

For this step, reference may be made to step 65 in Embodiment 4 of the present invention.

In addition, on the basis of FIG. 8, as shown in FIG. 9, in order to enable the PCRF entity to obtain the latest network state information of the target cell, before step 81 of the embodiment, the method may further include:

80. The PCRF entity loads a cell state change trigger report to the PCEF entity.

And the PCEF entity detects, according to the preset frequency, whether the network state information of the cell in the cell network state information list is changed. For example, the PCEF entity may detect the cell in the cell network state information list every Is. Whether the network status information changes or the PCEF subscribes to the base station to update the cell status change. When the cell network status of the base station changes, the base station updates the cell network status information to the PCEF through the MME and the SGW. If the PCEF entity detects that the network state information of any cell in the cell network state information list is changed, the network state information of the cell may be obtained through steps 311 to 316, and then obtain a Updated list of cell network status information.

Here, the updated cell network status information list may be a complete list of cell network status information. Alternatively, the updated cell network state information list may also be a network state information list of a partial cell. The partial cell includes a cell whose network state information changes.

Further, in order to improve the flexibility and correctness of the TDF entity for quality of service decision and execution, the PCRF entity may further send network state information of the target cell to the TDF entity, so that the TDF entity utilizes the The network status information of the target cell performs a quality of service rule decision and performs the implementation of the quality of service QoS rule.

As shown in FIG. 10, Embodiment 6 of the present invention provides a method for making a policy decision, including the following steps:

101. The PCEF entity sends an IP-CAN session request message to the PCRF entity.

102. The PCRF entity acquires identification information of the target cell according to the IP-CAN session request message.

Manner 2: If the IP-CAN session request message does not carry the identifier information of the target terminal, the PCRF entity may obtain the identifier information of the target terminal that initiates the IP-CAN session request message, and according to the target terminal Identifying, by the identifier information, an identifier of a target cell where the target terminal is located Information.

103. The PCRF entity detects, according to the identifier information of the target cell, whether the cell network status information list includes network status information of the target cell corresponding to the identifier information of the target cell.

A list of cell network status information obtained (eg, PCEF entity).

And if the cell network state information list includes network state information of the target cell, the PCRF entity directly obtains network state information of the target cell from the cell network state information list according to the identity information of the target cell. If the cell network status information list does not include the network status information of the target cell, go to step 104.

104. The PCRF entity sends a cell network status information request message to the PCEF entity according to the identifier information of the target cell.

Step 105: The PCEF entity acquires network state information of the target cell.

For the process of obtaining the network state information of the target cell, the PCEF entity may refer to step 311 to step 316 in the second embodiment of the present invention.

106. The PCEF entity sends a cell network status information reply message to the PCRF entity, where the cell network status information reply message carries network status information of the target cell.

107. The PCRF entity parses the cell network status information reply message and obtains network status information of the target cell.

108. The PCRF entity obtains basic decision information of policy decision.

The process of obtaining the policy decision basic reference information by the PCRF entity is the same as that of the prior art, and details are not described herein again.

109. The PCRF entity performs policy decision according to network state information of the target cell and the policy decision basic reference information.

As can be seen from the above description, the PCRF entity not only considers policy decisions when making policy decisions. The basic reference information also considers the network status information of the target cell, which enables the PCRF entity to reasonably make policy decisions according to the network state information of the target cell, for example, when the network of the target cell is congested, some urgency services may be delayed. The network offloading policy can be triggered, which effectively alleviates the congestion of the network and improves the utilization of network resources. Therefore, the utilization of the network resources is improved by using the technical solution of the embodiment of the present invention.

In addition, in order to enable the PCRF entity to obtain the latest network state information of the target cell, before step 101 in Embodiment 6, the method may further include: loading, by the PCRF entity, a cell state change trigger report to the PCEF entity.

Here, the process of the PCEF entity acquiring the latest network state information of the target cell may refer to the description in Embodiment 4 of the present invention.

In addition, in order to improve the flexibility and correctness of the TDF entity for quality of service decision and execution, the PCRF entity may further send network state information of the target cell to the TDF entity, so that the TDF entity utilizes the target. The network status information of the cell performs the decision of the quality of service rules and the execution of the quality of service rules.

As shown in FIG. 11, the seventh embodiment of the present invention provides a network device, including: a first obtaining unit 111, configured to obtain basic decision information for policy decision; and a second acquiring unit 112, configured to acquire network state information of the target cell. The decision unit 113 is configured to perform policy decision according to the network state information of the target cell acquired by the second acquiring unit and the policy decision basic reference information acquired by the first acquiring unit.

In this embodiment, according to the manner in which the second acquiring unit 112 acquires the network state information of the target cell, the structure of the second acquiring unit 112 is also different.

The second obtaining unit 112 may include: a first receiving module, configured to receive a connection session request message sent by the PCEF entity, where the connection session request message carries network state information of the target cell; , configured to parse the connection session received by the first receiving module Requesting a message and acquiring network status information of the target cell. In addition, the connection session request message may further carry identifier information of the target cell.

Alternatively, the second obtaining unit 112 may include: a second receiving module, configured to receive a connection session request message sent by the PCEF entity, where the connection session request message carries a cell network state information list; and the second obtaining module is configured to: Obtaining network state information of the target cell according to the connection session request message received by the second receiving module and the cell network state information list. The second obtaining module may include: an obtaining submodule, configured to acquire, according to the connection session request message received by the second receiving module, identifier information of the target terminal, and obtain the target according to the identifier information of the target terminal. And the detection sub-module, configured to detect, according to the identifier information of the target cell acquired by the acquiring sub-module, whether the cell network state information list acquired by the acquiring sub-module includes a location corresponding to the identifier information of the target cell The network status information of the target cell. In this case, the acquiring submodule is further configured to: if the detecting submodule detects that the cell network state information list includes network state information of the target cell corresponding to the identity information of the target cell, according to the cell The network status information list and the identification information of the target cell acquire network state information of the target cell.

Alternatively, the second obtaining unit 112 may include: a third receiving module, configured to receive a connection session request message sent by the PCEF entity, and a third obtaining module, configured to obtain, according to the connection session request message received by the third receiving module, And the fourth acquiring module, configured to acquire network state information of the target cell by the PCEF entity according to the identifier information of the target cell acquired by the third acquiring module.

The third acquiring module is specifically configured to: when the connection session request message carries the identifier information of the target cell, parse the connection session request message and obtain the identifier information of the target cell. Or the third acquiring module is configured to acquire the identifier information of the target terminal according to the connection session request message, and obtain the identifier information of the target cell according to the identifier information of the target terminal.

Preferably, the fourth obtaining module may include: a sending submodule, configured to be small according to the target The identifier information of the area is sent to the PCEF entity to send a cell network status information request message, and the receiving submodule is configured to receive, by the sending submodule, the cell network status information reply message sent by the PCEF entity, where The cell network status information reply message carries the network status information of the target cell. The acquiring submodule is configured to parse the cell network status information reply message received by the receiving submodule and obtain network status information of the target cell.

Further, when the second obtaining unit 112 includes: a third receiving module, a third acquiring module, and a fourth acquiring module, the second acquiring unit 112 may further include: a detecting module, configured to use, according to the third The identifier information of the target cell acquired by the acquiring module detects whether the pre-acquired cell network state information list includes network state information of the target cell corresponding to the identifier information of the target cell. In this case, the fourth acquiring module is specifically configured to: if the detecting module detects that the pre-acquired cell network state information list does not include network state information of the target cell corresponding to the identity information of the target cell, Obtaining network state information of the target cell by the PCEF entity according to the identifier information of the target cell.

In addition, on the basis of FIG. 11, as shown in FIG. 12, the network device may further include: a loading unit 121, configured to load a cell state change trigger report to the PCEF entity, and a sending unit 122, configured to send the device to the TDF entity. Determining, by the second acquiring unit, network state information of the target cell, so that the TDF entity uses the network state information of the target cell to perform a service quality rule decision and a service quality rule.

In a specific application, the network device may be a PCRF entity.

The working principle of the network device in the embodiment of the present invention can be referred to the description in the foregoing method embodiment.

It can be seen from the above description that the PCRF entity not only considers the policy decision basic reference information but also the network state information of the target cell when making policy decisions, which enables the PCRF entity to reasonably make policy decisions according to the network state information of the target cell. For example, when the network of the target cell is congested, some urgency services may be delayed, or the network offloading policy may be triggered, thereby effectively alleviating network congestion and improving network resource utilization. Therefore, using the present invention The network device of the embodiment improves the utilization of network resources.

As shown in FIG. 13, the eighth embodiment of the present invention provides a network device, including: an information acquiring unit 131, configured to acquire network state information of a target cell, and an information sending unit 132, configured to send the information to the PCRF entity. The network status information of the target cell acquired by the unit, so that the PCRF entity performs policy decision according to the network status information of the target cell and the policy decision basic reference information.

In this embodiment, the information acquiring unit 131 is specifically configured to receive network state information of the target cell that is sent by the BBERF entity, where the BBERF entity acquires network state information of the target cell by using an MME, where the MME The network status information of the target cell is obtained by the terminal or the base station.

The information sending unit 132 is specifically configured to send a connection session request message to the PCRF entity, where the connection session request message carries network state information of the target cell acquired by the information acquiring unit. In addition, the connection session request message may further carry identifier information of the target cell.

Or, on the basis of FIG. 13, as shown in FIG. 14, the network device further includes: a list obtaining unit 141, configured to acquire cell network state information including network state information of the target cell acquired by the information acquiring unit. List. At this time, the information sending unit 132 is specifically configured to send a connection session request message to the PCRF entity, where the connection session request message carries a list of cell network state information obtained by the list obtaining unit.

Or, on the basis of FIG. 13, the network device further includes: a message sending unit 151, configured to send a connection session request message to the PCRF entity, so that the PCRF entity is configured according to the connection The session request message acquires the identifier information of the target cell. The message receiving unit 152 is configured to receive a cell network state information request message sent by the PCRF entity according to the identifier information of the target cell. At this time, the information sending unit 132 is specifically configured to send a cell network status information reply message to the PCRF entity, where the cell network status information reply message carries the network status information of the target cell acquired by the information acquiring unit.

Further, the network device may further include: a loading unit, configured to load a cell state change Trigger the report.

In a specific application, the network device may be a PCEF entity.

It can be seen from the above description that the PCEF entity can provide network status information for the PCRF entity, so that the PCRF entity not only considers the policy decision basic reference information but also the network state information of the target cell when making policy decisions, which makes the PCRF entity The policy decision can be reasonably made according to the network state information of the target cell, thereby effectively alleviating network congestion and improving the utilization of network resources. Therefore, with the network device of the embodiment of the present invention, the utilization rate of network resources is improved.

As shown in FIG. 16, the ninth embodiment of the present invention provides a network device, including: an obtaining unit 161, configured to acquire network state information of a target cell by a PCRF entity, and a determining unit 162, configured to use, according to the network of the target cell The status information is used to make QoS rule decisions and perform quality of service rules.

The obtaining unit 161 may include: a receiving module, configured to receive a TDF session request message sent by the PCRF entity, where the TDF session request information carries network state information of the target cell; and an acquiring module is configured to parse The TDF session request message acquires network state information of the target cell.

In addition, in order to enable the TDF entity to obtain the latest network status information of the target cell, on the basis of FIG. 16, as shown in FIG. 17, the network device may further include: a loading unit 171, configured to send to the PCRF entity Loading a cell state change trigger report, so that the PCRF entity acquires the latest network state information of the target cell.

In a specific application, the network device may be a TDF entity.

As can be seen from the above description, the TDF entity considers the network state information of the target cell when performing QoS decision and performing the QoS rule, which enables the TDF entity to The network state information of the target cell performs flexible and correct QoS decisions without frequently obtaining possible updates of the QoS rules from the PCRF, thereby effectively alleviating network congestion and improving the utilization of network resources. Therefore, the network device of the embodiment of the invention improves the utilization of network resources.

In summary, the technical solution of the embodiment of the present invention improves the utilization of network resources. The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Rights request

A method for making a policy decision, characterized in that it comprises:

Obtain basic reference information for policy decision;

Obtaining network status information of the target cell;

A policy decision is made according to network state information of the target cell and the policy decision basic reference information.

2. The method according to claim 1, wherein the acquiring network status information of the target cell comprises:

Receiving a connection session request message sent by the PCEF entity, where the connection session request message carries the network status information of the target cell;

Parsing the connection session request message and acquiring network state information of the target cell.

The method according to claim 2, wherein the connection session request message further carries identification information of the target cell.

The method according to claim 1, wherein the acquiring network status information of the target cell comprises:

Receiving a connection session request message sent by the PCEF entity, where the connection session request message carries a cell network status information list;

And acquiring network state information of the target cell according to the connection session request message and the cell network state information list.

The method according to claim 4, wherein the acquiring the network state information of the target cell according to the connection session request message and the cell network state information list includes:

Obtaining identification information of the target terminal according to the connection session request message;

Obtaining the identification information of the target cell according to the identifier information of the target terminal;

Determining, according to the identifier information of the target cell, whether the cell network state information list includes network state information of the target cell corresponding to the identifier information of the target cell; If the cell network state information list includes the network state information of the target cell corresponding to the identity information of the target cell, obtain the target cell according to the cell network state information list and the identity information of the target cell. Network status information.

Receiving a connection session request message sent by the PCEF entity;

Obtaining identification information of the target cell according to the connection session request message;

Obtaining network status information of the target cell by the PCEF entity according to the identifier information of the target cell.

The method according to claim 6, wherein the connection session request message carries the identification information of the target cell, and the obtaining the identification information of the target cell according to the connection session request message includes:

Parsing the connection session request message and acquiring identification information of the target cell.

The method according to claim 6, wherein the obtaining the identification information of the target cell according to the connection session request message comprises:

Obtaining the identification information of the target cell according to the identifier information of the target terminal.

The method according to claim 6 or 7 or 8, wherein the acquiring the network state information of the target cell by the PCEF entity according to the identifier information of the target cell comprises: according to the target cell The identification information sends a cell network status information request message to the PCEF entity;

Receiving, by the PCEF entity, a cell network status information reply message, where the cell network status information reply message carries network status information of the target cell;

Parsing the cell network status information reply message and acquiring network status information of the target cell.

10. The method according to claim 9, wherein the according to the target cell Before the identifier information is obtained by the PCEF entity, the method further includes: detecting, according to the identifier information of the target cell, whether the pre-acquired cell network state information list includes the identifier information corresponding to the target cell Network status information of the target cell;

The acquiring the network state information of the target cell by the PCEF entity according to the identifier information of the target cell includes:

If the pre-acquired cell network state information list does not include the network state information of the target cell, the PCEF entity acquires network state information of the target cell according to the identity information of the target cell.

The method according to any one of claims 1-8, wherein, after the acquiring the network state information of the target cell, the method further includes:

The network state information of the target cell is sent to the flow detection function TDF entity, so that the TDF entity uses the network state information of the target cell to perform the decision of the quality of service rule and the execution of the quality of service rule.

The method according to claim 11, wherein before the acquiring the network status information of the target cell, the method further includes:

The cell state change trigger report is loaded to the PCEF entity.

13. A method for making policy decisions, characterized by comprising:

Obtaining network status information of the target cell;

And transmitting, to the policy and charging rule function, the PCRF entity, the network state information of the target cell, so that the PCRF entity performs policy decision according to the network state information of the target cell and the policy decision basic reference information.

The method according to claim 13, wherein the acquiring network status information of the target cell comprises:

Receiving, by the bearer binding and event reporting function, the network status information of the target cell that is sent by the BBERF entity, where the network status information of the target cell is acquired by the terminal or the base station and sent to the mobility management entity MME, and is used by the MME Sent to the BBERF.

The method according to claim 13, wherein the sending the network status information of the target cell to the PCRF entity comprises:

And transmitting, by the PCRF entity, a connection session request message, where the connection session request message carries network state information of the target cell.

The method according to claim 15, wherein the connection session request message further carries identification information of the target cell.

The method according to claim 13, wherein before the sending the network state information of the target cell to the PCRF entity, the method further includes:

Obtaining, by the UEF, the network state information of the target cell, where the network state information of the target cell is:

Sending a connection session request message to the PCRF entity, the connection session request message carrying the list of cell network status information.

The method according to claim 13, wherein before the acquiring the network status information of the target cell, the method further includes:

Sending a connection session request message to the PCRF entity, so that the PCRF entity acquires the identifier information of the target cell according to the connection session request message;

Receiving a cell network status information request message sent by the PCRF entity according to the identity information of the target cell;

The sending the network status information of the target cell to the PCRF entity includes:

And sending a cell network status information reply message to the PCRF entity, where the cell network status information reply message carries network status information of the target cell.

The method according to any one of claims 13 to 18, wherein before the obtaining the network state information of the target cell, the method further includes:

Loading the cell status change triggers 4 false alarms.

20. A network device, comprising:

a first obtaining unit, configured to obtain basic decision information of policy decision; a second acquiring unit, configured to acquire network state information of the target cell;

And a decision unit, configured to perform a policy decision according to the network state information of the target cell acquired by the second acquiring unit and the policy decision basic reference information acquired by the first acquiring unit.

The network device according to claim 20, wherein the second obtaining unit comprises:

a first receiving module, configured to receive a connection session request message sent by the PCEF entity, where the connection session request message carries network state information of the target cell;

And a first acquiring module, configured to parse the connection session request message received by the first receiving module, and obtain network state information of the target cell.

The network device according to claim 21, wherein the connection session request message received by the first receiving module further carries the identification information of the target cell.

The network device according to claim 20, wherein the second acquiring unit comprises:

a second receiving module, configured to receive a connection session request message sent by the PCEF entity, where the connection session request message carries a cell network status information list;

And a second acquiring module, configured to acquire network state information of the target cell according to the connection session request message received by the second receiving module and the cell network state information list.

The network device according to claim 23, wherein the second acquiring module comprises:

Obtaining a sub-module, configured to acquire, according to the connection session request message received by the second receiving module, identifier information of the target terminal, and obtain identifier information of the target cell according to the identifier information of the target terminal;

a detecting submodule, configured to detect, according to the identifier information of the target cell acquired by the acquiring submodule, whether the cell network state information list acquired by the acquiring submodule includes the network of the target cell corresponding to the identifier information of the target cell status information;

The acquiring submodule is further configured to: if the detecting submodule detects the cell network status information The list includes network state information of the target cell corresponding to the identity information of the target cell, and the network state information of the target cell is obtained according to the cell network state information list and the identity information of the target cell.

a third receiving module, configured to receive a connection session request message sent by the PCEF entity, where the third acquiring module is configured to acquire the identifier information of the target cell according to the connection session request message received by the third receiving module;

And a fourth acquiring module, configured to acquire network state information of the target cell by the PCEF entity according to the identifier information of the target cell acquired by the third acquiring module.

The network device according to claim 25, wherein the third acquiring module is configured to: when the connection session request message carries the identification information of the target cell, parse the connection session request message and Obtaining identification information of the target cell.

The network device according to claim 25, wherein the third acquiring module is configured to acquire the identification information of the target terminal according to the connection session request message, and obtain the location information according to the identifier information of the target terminal. The identification information of the target cell.

The network device according to claim 25 or 26 or 27, wherein the fourth obtaining module comprises:

a sending submodule, configured to send a cell network status information request message to the PCEF entity according to the identifier information of the target cell;

a receiving submodule, configured to receive, by the sending submodule, the cell network state information reply message sent by the PCEF entity, where the cell network state information reply message carries network state information of the target cell;

And a sub-module, configured to parse the cell network status information reply message received by the receiving sub-module and obtain network status information of the target cell.

The network device according to claim 28, wherein the second acquiring unit Also includes:

a detecting module, configured to detect, according to the identifier information of the target cell acquired by the third acquiring module, whether the pre-acquired cell network state information list includes network state information of the target cell corresponding to the identifier information of the target cell;

The fourth acquiring module is specifically configured to: if the detecting module detects that the pre-acquired cell network state information list does not include network state information of the target cell corresponding to the identity information of the target cell, according to the The identifier information of the target cell acquires network state information of the target cell by the PCEF entity.

The network device according to any one of claims 20-27, wherein the network device further comprises:

a sending unit, configured to send network state information of the target cell acquired by the second acquiring unit to the stream detecting function TDF entity, so that the TDF entity uses the network state information of the target cell to perform service quality rule decision and service Execution of quality rules.

The network device according to claim 30, wherein the network device further comprises:

a loading unit, configured to load a cell state change trigger report to the PCEF entity.

32. A network device, comprising:

An information acquiring unit, configured to acquire network state information of the target cell;

And an information sending unit, configured to send the network state information of the target cell acquired by the information acquiring unit to the PCRF entity, so that the PCRF entity performs policy decision according to the network state information of the target cell and the policy decision basic reference information.

The network device according to claim 32, wherein the information acquiring unit is configured to receive network state information of the target cell that is sent by a BBERF entity, where network state information of the target cell is The terminal or base station acquires and sends to the MME, and is sent by the MME to the BBERF.

The network device according to claim 32, wherein the information sending unit Specifically, the method is configured to send a connection session request message to the PCRF entity, where the connection session request message carries network state information of the target cell acquired by the information acquiring unit.

The network device according to claim 34, wherein the connection session request message sent by the information sending unit further carries the identification information of the target cell.

The network device according to claim 32, further comprising:

a list obtaining unit, configured to acquire a list of cell network state information including network state information of the target cell acquired by the information acquiring unit;

The information sending unit is configured to send a connection session request message to the PCRF entity, where the connection session request message carries a list of cell network status information acquired by the list obtaining unit.

The network device according to claim 32, further comprising:

a message sending unit, configured to send a connection session request message to the PCRF entity, so that the PCRF entity acquires the identifier information of the target cell according to the connection session request message;

a message receiving unit, configured to receive a cell network state information request message sent by the PCRF entity according to the identifier information of the target cell;

The information sending unit is configured to send a cell network status information reply message to the PCRF entity, where the cell network status information reply message carries network status information of the target cell acquired by the information acquiring unit.

The network device according to any one of claims 32-37, further comprising: a loading unit, configured to load a cell state change trigger.