CN104770000B

CN104770000B - Congestion upload control method and apparatus and system

Info

Publication number: CN104770000B
Application number: CN201380003263.1A
Authority: CN
Inventors: 时晓岩; 乔伟华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-03-01
Filing date: 2013-03-01
Publication date: 2019-03-05
Anticipated expiration: 2033-03-01
Also published as: WO2014131198A1; CN104770000A

Abstract

The present invention provides a kind of congestion upload control method and apparatus and system.One of method includes: the uplink data messages that base station receives user equipment；The base station carries out congestion control according to congestion upload control strategy corresponding with the stream description information in the uplink data messages, to the uplink data messages.When receiving uplink data messages, base station is according to congestion upload control strategy corresponding with the stream description information in the uplink data messages, congestion control is carried out to the uplink data messages, the purpose that uplink data messages are distinguished with scheduling is realized, improves the working efficiency of base station.

Description

Congestion uplink control method, equipment and system

Technical Field

The present invention relates to communications technologies, and in particular, to a congestion uplink control method, device, and system.

Background

The limited radio resources of the wireless network may cause congestion of the wireless network due to a large number of accesses of the user equipment or excessive use of a large traffic by a part of the user equipment, for example, the use of P2P by the user causes a shortage of radio network resources. When the access network is congested, congestion control is required, that is, the bandwidth used by the user equipment is limited, for example, the bandwidth is limited according to the type of service used by the user.

In the prior art, a deep packet inspection device is mainly used to perform content inspection on a downlink data packet used by a user equipment, that is, a data stream sent from an external Network to the user equipment, and perform different marking on the downlink data packet according to the inspection result, for example, marking a Differential Service Code Point (DSCP) Code in an IP header, marking a DSCP Code with different Services, when a Gateway device, for example, a packet data Network Gateway (PGW) or a general packet radio service support Node Gateway (GGSN), receives the downlink data packet, and after deciding a congestion scheduling mode of the data packet according to information such as a service type of the downlink data packet, a subscription of the user, a location of the user, and a user access type, a GPRS Tunneling Protocol user plane (GPRS Tunneling Protocol) of the downlink data packet, GTP-U for short) header to indicate the congestion scheduling mode. When the access network is congested, the access network performs differentiated scheduling according to a congestion scheduling mode in a GTP-U head of the downlink data message, such as bandwidth limitation, packet loss and the like.

However, although the prior art solves the congestion control of the downlink data packet, when congestion occurs, the congestion control of the uplink data packet, that is, the uplink data packet cannot be scheduled in a differentiated manner, for example, when congestion occurs, bandwidth of a video uploaded by a user is limited.

Disclosure of Invention

The embodiment of the invention provides a congestion uplink control method, equipment and a system, which are used for solving the technical problem that uplink data messages cannot be distinguished and scheduled when a base station is congested and improving the working efficiency of the base station.

In a first aspect, an embodiment of the present invention provides a congestion uplink control method, including:

a base station receives an uplink data message of user equipment;

and the base station performs congestion control on the uplink data message according to a congestion uplink control strategy corresponding to the flow description information in the uplink data message.

With reference to the first aspect, in a first possible implementation manner, the congestion uplink control policy is set according to one or more combinations of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type.

In a second aspect, an embodiment of the present invention provides a congestion uplink control method, including:

a core network device encapsulates a downlink data message, wherein the downlink data message comprises a congestion uplink control strategy corresponding to flow description information in the downlink data message, and the congestion uplink control strategy is used for performing congestion control on an uplink data message which has the same flow description information as the downlink data message;

and the core network equipment sends the downlink data message to the base station.

With reference to the second aspect, in a first possible implementation manner, before the encapsulating, by the core network device, a downlink data packet sent to a base station, the method further includes: and the core network equipment receives flow description information sent by a policy control entity and a congestion uplink control policy corresponding to the flow description information.

The downlink data message sent to the base station by the core network equipment is specifically:

and the core network equipment constructs a downlink data message according to the flow description information sent by the strategy control entity, and a congestion uplink control strategy corresponding to the flow description information is encapsulated in the constructed downlink data message.

In a third aspect, an embodiment of the present invention provides a congestion uplink control method, including:

the service flow detection equipment detects the service type and flow description information of an uplink data message sent by user equipment;

the service flow detection equipment constructs a downlink data message according to the flow description information and the service type of the uplink data message, and sends the downlink data message to core network equipment, wherein the downlink data message comprises indication information used for indicating the service type of the uplink data message;

or, the service flow detection device reports the service type and the flow description information of the uplink data packet to a policy control entity.

With reference to the third aspect, in a first possible implementation manner, the traffic flow detection device is a TDF or DPI device, and the policy control entity is a PCRF.

In a fourth aspect, an embodiment of the present invention provides a congestion uplink control method, including:

a policy control entity receives the service type and flow description information of an uplink data message reported by a service flow detection device;

the strategy control entity determines a congestion uplink control strategy corresponding to the flow description information according to the service type and the flow description information of the uplink data message, wherein the congestion uplink control strategy is used for performing congestion control on the uplink data message with the flow description information;

and the strategy control entity sends the flow description information and a congestion uplink control strategy corresponding to the flow description information to core network equipment.

With reference to the fourth aspect, in a first possible implementation manner, the traffic flow detection device is a TDF or DPI device, and the policy control entity is a PCRF.

In a fifth aspect, an embodiment of the present invention provides a congestion uplink control apparatus, including:

a receiving module, configured to receive an uplink data packet of a user equipment;

and the control module is used for carrying out congestion control on the uplink data message according to a congestion uplink control strategy corresponding to the flow description information in the uplink data message.

With reference to the fifth aspect, in a possible implementation manner, the congestion uplink control policy is set according to one or more combinations of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type.

In a sixth aspect, an embodiment of the present invention provides a congestion uplink control apparatus, including:

the device comprises a packaging module, a processing module and a processing module, wherein the packaging module is used for packaging a downlink data message, the downlink data message comprises a congestion uplink control strategy corresponding to flow description information in the downlink data message, and the congestion uplink control strategy is used for performing congestion control on an uplink data message which has the same flow description information as the downlink data message;

and the sending module is used for sending the downlink data message to the base station.

With reference to the sixth aspect, in a possible implementation manner, the method further includes: a receiving module, configured to receive, before the downlink data packet is encapsulated, flow description information sent by a policy control entity and a congestion uplink control policy corresponding to the flow description information;

the encapsulation module is further configured to construct a downlink data packet according to the flow description information sent by the policy control entity, and a congestion uplink control policy corresponding to the flow description information is encapsulated in the constructed downlink data packet.

In a seventh aspect, an embodiment of the present invention provides a congestion uplink control apparatus, including:

the detection module is used for detecting the service type and the flow description information of the uplink data message sent by the user equipment;

the sending module is used for constructing a downlink data message according to the flow description information and the service type of the uplink data message, and sending the downlink data message to core network equipment, wherein the downlink data message comprises indication information used for indicating the service type of the uplink data message; or,

and the sending module is used for reporting the service type and the flow description information of the uplink data message to a policy control entity.

With reference to the seventh aspect, in a possible implementation manner, the apparatus is a TDF or DPI device, and the policy control entity is a PCRF.

In an eighth aspect, an embodiment of the present invention provides a congestion uplink control apparatus, including:

a receiving module, configured to receive a service type and flow description information of an uplink data packet reported by a service flow detection device;

a policy determining module, configured to determine, according to a service type of the uplink data packet and flow description information, a congestion uplink control policy corresponding to the flow description information, where the congestion uplink control policy is used to perform congestion control on an uplink data packet having the flow description information;

and the strategy sending module is used for sending the flow description information and the congestion uplink control strategy corresponding to the flow description information to core network equipment.

With reference to the eighth aspect, in a possible implementation manner, the traffic flow detection device is a TDF or DPI device, and the policy control entity is a PCRF.

In a ninth aspect, an embodiment of the present invention provides a base station, including: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the memory is used for storing programs and congestion uplink control strategies corresponding to different flow description information; the processor is used for executing the program;

the communication interface is used for receiving an uplink data message of user equipment;

the program for:

and carrying out congestion control on the uplink data message according to a congestion uplink control strategy corresponding to the flow description information in the uplink data message.

With reference to the ninth aspect, in a possible implementation manner, the congestion uplink control policy is set according to one or more combinations of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type.

In a tenth aspect, an embodiment of the present invention provides a core network device, including: a memory, a processor, a bus, and a communication interface; the processor, the communication interface and the memory complete mutual communication through the bus;

the memory is used for storing programs; the processor is used for executing the program;

the program, including first and second instructions:

the first instruction is used for encapsulating a downlink data message sent to a base station, where the downlink data message includes a congestion uplink control policy corresponding to flow description information in the downlink data message, and the congestion uplink control policy is used for performing congestion control on an uplink data message having the same flow description information as the downlink data message;

the second instruction is used for controlling the communication interface to send the downlink data message to the base station.

With reference to the tenth aspect, in a possible implementation manner, the program is further configured to:

before the core network equipment encapsulates a downlink data message sent to a base station, receiving flow description information sent by a policy control entity and a congestion uplink control policy corresponding to the flow description information;

and constructing a downlink data message according to the flow description information sent by the strategy control entity, wherein a congestion uplink control strategy corresponding to the flow description information is encapsulated in the constructed downlink data message.

In an eleventh aspect, an embodiment of the present invention provides a service flow detection device, including: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the program for:

detecting the service type and the flow description information of an uplink data message sent by user equipment;

constructing a downlink data message according to the flow description information and the service type of the uplink data message, and sending the downlink data message to core network equipment, wherein the downlink data message comprises indication information used for indicating the service type of the uplink data message; or,

and reporting the service type and the flow description information of the uplink data message to a policy control entity.

With reference to the eleventh aspect, in a possible implementation manner, the traffic flow detection device is a TDF or DPI device, and the policy control entity is a PCRF.

In a twelfth aspect, an embodiment of the present invention provides a policy control entity, including: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the program for:

controlling the communication interface to receive the service type and the flow description information of the uplink data message reported by the service flow detection equipment;

determining a congestion uplink control strategy corresponding to the flow description information according to the service type and the flow description information of the uplink data message, wherein the congestion uplink control strategy is used for performing congestion control on the uplink data message with the flow description information;

and controlling the communication interface to send the flow description information and a congestion uplink control strategy corresponding to the flow description information to core network equipment.

With reference to the twelfth aspect, in a possible implementation manner, the traffic flow detection device is a TDF or DPI device, and the policy control entity is a PCRF.

In a thirteenth aspect, an embodiment of the present invention further provides a system for controlling a congested uplink, where the system includes: the base station, the core network device, the service detection device, and the policy control entity.

In the above technical solution, the base station stores congestion uplink control strategies corresponding to different flow description information. The congestion uplink control strategy stored by the base station can be obtained from a downlink data message sent by the core network device. When receiving the uplink data message, the base station performs congestion control on the uplink data message according to the congestion uplink control strategy corresponding to the flow description information in the uplink data message, so that the purpose of distinguishing and scheduling the uplink data message is realized, and the working efficiency of the base station is improved.

Drawings

Fig. 1 is a flowchart of a congestion uplink control method according to an embodiment of the present invention;

fig. 2 is a flowchart of another congestion uplink control method according to an embodiment of the present invention;

fig. 3 is a flowchart of another congestion uplink control method according to an embodiment of the present invention;

fig. 4 is a flowchart of a congestion uplink control method according to another embodiment of the present invention;

fig. 5 is a flowchart of a congestion uplink control method according to another embodiment of the present invention;

fig. 6 is a schematic structural diagram of a congestion uplink control device according to an embodiment of the present invention

Fig. 7A is a schematic structural diagram of another congestion uplink control device according to an embodiment of the present invention;

fig. 7B is a schematic structural diagram of another congestion uplink control device according to an embodiment of the present invention;

fig. 7C is a schematic structural diagram of another congestion uplink control device according to an embodiment of the present invention;

fig. 7D is a schematic structural diagram of another congestion uplink control device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another congestion uplink control device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another congestion uplink control device according to an embodiment of the present invention.

Detailed Description

The embodiment of the invention is suitable for controlling the uplink data message in a 2G network, such as a Global System for mobile communications (GSM) network and a 3G network, such as a Universal Mobile Telecommunications System (UMTS) network, a Long Term Evolution (LTE) network and a higher-level network.

Fig. 1 is a flowchart of a congestion uplink control method according to an embodiment of the present invention. This embodiment mainly illustrates how the base station performs congestion control on an uplink data packet. As shown in fig. 1, the method provided by this embodiment includes:

step 11: and the base station receives an uplink data message of the user equipment.

Step 12: and the base station carries out congestion control on the uplink data message according to a congestion uplink control strategy corresponding to the flow description information in the uplink data message.

The base station stores congestion uplink control strategies corresponding to different flow description information. The congestion uplink control strategy stored by the base station is set according to one or more combinations of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type. The flow description information may be all or part of IP five-tuple information, that is, a source address, a destination address, a source port number, a destination port number, and a protocol type of the IP packet.

After receiving the uplink data message, if it is determined that the base station is congested, for example, the air interface resource is insufficient, the forwarding capability of the base station is insufficient, or the bandwidth of the uplink to the core network is limited, the base station searches for a congestion uplink control policy corresponding to the flow description information in the uplink data message. And if the congestion uplink control strategy corresponding to the flow description information is found, carrying out congestion control on the uplink data message according to the found congestion uplink control strategy. For example, the congestion uplink control policy may be to limit the bandwidth of a data flow, lower the priority of data transmission, or directly drop the data flow.

The core network device, for example, the PGW or the GGSN, may issue a congestion uplink control policy for the base station. After the core network equipment receives the uplink data message of the user equipment, if the base station to which the terminal sending the uplink data message belongs is determined to be frequently congested or the congestion uplink control strategy corresponding to the flow description information in the uplink data message needs to be issued to the base station according to the information configured by the PCRF, the congestion uplink control strategy corresponding to the flow description information in the uplink data message is issued to the base station, so that the base station stores the congestion uplink control strategy. For example, a base station receives a downlink data packet sent by a core network device, where the downlink data packet includes a congestion uplink control policy corresponding to flow description information in the downlink data packet, and the congestion uplink control policy is used to perform congestion control on an uplink data packet that has the same flow description information as the downlink data packet. And after receiving the downlink data message sent by the core network equipment, the base station stores the flow description information and the corresponding congestion uplink control strategy. The base station may establish a congestion uplink control policy base for storing congestion uplink control policies corresponding to different flow description information.

The following illustrates the process of the core network issuing the congestion uplink control policy for the base station:

1. when User Equipment (User Equipment, abbreviated as UE) needs to upload a Video file to a specific website, an uplink data packet is sent to a base station a, where flow description information of the uplink data packet is: source address UE IP, destination address specific IP.

2. After the core network equipment receives the uplink data message, when the base station A to which the UE belongs is judged to be frequently congested according to the position information of the UE, the core network equipment determines that a congestion uplink control strategy needs to be issued for the base station A. And the core network equipment sets and flow description information: the source address UE IP and the destination address specific IP, the corresponding congestion uplink control strategy is to directly discard the uplink data message, and the type number of the congestion uplink control strategy is 123.

3. The core network equipment sends a downlink IP message to the UE, and the flow description information of the downlink IP message is as follows: the source address is a specific IP, the destination address is a UE IP, and a specific domain in an IP header (or in a GTP header) is set to be a congestion uplink control strategy type number of 123.

4. After receiving the downlink IP packet, the base station determines, according to the value 123 of the specific field in the packet, that uplink congestion control needs to be performed on the uplink data packet corresponding to the flow description information in the downlink IP packet, so that the flow description information in the downlink IP packet is stored: and the specific IP and the UE IP and the corresponding uplink control strategy are stored, namely, the uplink data message is directly discarded.

5. When the base station a is congested, when the base station a receives an IP packet sent to a specific website by the UE, it finds that the flow description information of the IP packet conforms to the following flow description information stored by the base station: the source address is UE and the IP destination address is a specific IP. The congestion uplink control strategy corresponding to the flow description information is to directly discard the uplink data packet, so that the base station a directly discards an IP packet sent by the UE to the specific website.

In this embodiment, the base station stores congestion uplink control strategies corresponding to different flow description information. When receiving the uplink data message, the base station performs congestion control on the uplink data message according to the congestion uplink control strategy corresponding to the flow description information in the uplink data message, so that the purpose of distinguishing and scheduling the uplink data message is realized, and the working efficiency of the base station is improved.

Fig. 2 is a flowchart of another congestion uplink control method according to an embodiment of the present invention. This embodiment illustrates how the core network device issues a congestion uplink control policy to the base station. The core network device may be a PGW or a GGSN. As shown in fig. 2, the method provided by this embodiment includes:

step 21: and core network equipment encapsulates a downlink data message, wherein the downlink data message comprises a congestion uplink control strategy corresponding to the flow description information in the downlink data message, and the congestion uplink control strategy is used for performing congestion control on an uplink data message which has the same flow description information as the downlink data message.

Step 22: and the core network equipment sends the downlink data message to a base station.

And the core network equipment encapsulates the downlink data message comprising the congestion uplink control strategy. Different flow description information corresponds to different congestion uplink control strategies. The flow description information corresponding to the congestion uplink control strategy included in the downlink data packet is the same as the flow description information of the downlink data packet. And the congestion uplink control strategy is used for carrying out congestion control on the uplink data message which has the same flow description information as the downlink data message.

In the method provided in this embodiment, a downlink data packet sent by a core network device to a base station includes a congestion uplink control policy of an uplink data packet having the same flow description information as the downlink data packet, so that the base station obtains the congestion uplink control policy, thereby performing congestion control on the uplink data packet.

In the above embodiment, the congestion uplink control policy encapsulated by the core network device in the downlink data packet may be determined by the core network device itself, or may be obtained by the core network device from a policy control entity, for example, from a PCRF.

The process of the core network equipment obtaining the congestion uplink control strategy from the strategy control entity is as follows: after receiving the service type and the flow description information of the uplink data packet reported by the service flow detection device, the policy control entity determines a congestion uplink control policy corresponding to the flow description information according to the service type and the flow description information of the uplink data packet, and sends the flow description information and the congestion uplink control policy corresponding to the flow description information to the core network device, wherein the congestion uplink control policy is used for performing congestion control on the uplink data packet with the flow description information. After receiving the flow description information sent by the policy control entity and the congestion uplink control policy corresponding to the flow description information, the core network device constructs a downlink data packet according to the flow description information sent by the policy control entity, and the constructed downlink data packet is encapsulated with the congestion uplink control policy corresponding to the flow description information.

When the core network device determines the congestion uplink control strategy, two situations can be divided according to whether the core network device has the service flow detection capability. In one case, the core network device has a service flow detection capability, and after detecting an uplink data packet, the core network device determines a congestion uplink control policy corresponding to flow description information of the uplink data packet. The specific process is as follows:

the method comprises the steps that core network equipment detects flow description information and service types of an uplink data message sent by user equipment, and then determines a congestion uplink control strategy corresponding to the flow description information of the uplink data message. And then, the core network equipment constructs a downlink data message sent to the base station according to the flow description information in the uplink data message, and a congestion uplink control strategy corresponding to the flow description information in the uplink data message is encapsulated in the constructed downlink data message.

Alternatively, the core network device does not have the capability of traffic flow detection. After detecting an uplink data packet, a service flow Detection device, such as a service Detection Function entity (TDF) or Deep Packet Inspection (DPI) device, constructs a downlink data packet according to flow description information of the uplink data packet, and sends the downlink data packet to a core network device, and the core network device determines a congestion uplink control policy of the uplink data packet having the same flow description information as the downlink data packet, that is, determines a congestion uplink control policy corresponding to the flow description information of the downlink data packet. The specific process is as follows:

and the service flow detection equipment detects the service type and the flow description information of the uplink data message sent by the user equipment. And the service flow detection equipment constructs a downlink data message according to the flow description information and the service type of the uplink data message, and sends the downlink data message to core network equipment, wherein the downlink data message comprises indication information used for indicating the service type of the uplink data message.

After receiving a bit downlink data packet sent by a service flow detection device, a core network device determines a congestion uplink control strategy corresponding to flow description information of the downlink data packet sent by the service flow detection device. And then, the core network device encapsulates the congestion uplink control strategy corresponding to the flow description information in the downlink data message sent by the service flow detection device.

Fig. 3 is a flowchart of another congestion uplink control method according to an embodiment of the present invention. In this embodiment, a TDF or DPI device detects an uplink data packet and constructs a downlink data packet sent to a base station. The PGW determines a congestion uplink control strategy corresponding to the flow description information of the downlink data message and encapsulates the congestion uplink control strategy in the downlink data message,

as shown in fig. 3, the method provided by this embodiment includes:

step 30: the TDF receives an uplink data message of the UE.

Step 31: and after receiving the uplink data message of the UE, the TDF acquires the service type and the flow description information of the uplink data message.

Step 32: and the TDF constructs a downlink data message according to the flow description information and the service type of the uplink data message. The downlink data packet includes indication information for indicating the service type of the uplink data packet. The TDF constructed downlink data packet has the same flow description information as the uplink data packet.

After the TDF obtains the service type and the flow description information corresponding to the uplink data packet, it may determine whether to issue a congestion uplink control policy corresponding to the flow description information for the base station of the user equipment according to a policy configured by the PCRF for the TDF, so as to determine whether to construct a downlink data packet including the flow description information; the TDF may also determine whether the core network needs to issue a congestion uplink control policy for the base station according to the service type of the uplink data packet, for example, the core network needs to control a service only with uplink data, and when it is determined that the current service of the uplink data packet is the service only with uplink data, construct a downlink data packet including the flow description information in the uplink data packet. The TDF may also determine whether a congestion uplink control policy corresponding to the flow description information needs to be issued for the home base station of the user equipment according to the location and/or the user subscription information of the user equipment that sends the uplink data packet, so as to determine whether a downlink data packet including the flow description information needs to be constructed. If the TDF determines that the user equipment sending the uplink data packet belongs to a base station that is frequently congested and the user of the user equipment is a normal user, it may be determined that a congestion uplink control policy corresponding to the flow description information needs to be issued for the base station of the user equipment.

When the TDF determines that it is not necessary to issue the congestion uplink control policy corresponding to the flow description information to the base station of the user equipment, it is not necessary to construct a downlink data packet in which the flow description information and the uplink data packet have the same information.

It should be noted that: for the same service flow, i.e. the IP packet of the same source and destination address, the TDF only reports the service type and flow description information to the PGW once.

Step 33: the TDF sends the downlink data packet to the PGW.

Step 34: and after receiving the downlink data message, the PGW determines a congestion uplink control strategy corresponding to the flow description information of the downlink data message.

The PGW determines the congested uplink control strategy according to one or more combinations of the following information: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment. The flow description information may be all or part of IP five-tuple information, that is, a source address, a destination address, a source port number, a destination port number, and a protocol type of the IP packet.

Step 35: and the PGW encapsulates the determined congestion uplink control strategy into a GTP-U head of the downlink data message, and sends the downlink data message to the eNB.

The PGW may also encapsulate the congestion uplink control policy corresponding to the flow description information in a tunnel header encapsulated by IPinIP of the downlink data packet, that is, an outer IP header. A specific bit field for carrying the congestion uplink control policy may be set in the IP header or the GTP header, for example, when the specific bit field is all zero, it indicates that there is no control policy.

Step 36: and after receiving the downlink data message of the PGW, the eNB stores the congestion uplink control strategy corresponding to the flow description information of the downlink data message in the downlink data message.

And after receiving the downlink data message of the PGW, the eNB stores the congestion uplink control strategy corresponding to the flow description information of the downlink data message in the message when determining that the message comprises the congestion uplink control strategy according to the specific domain in the message.

Fig. 4 is a flowchart of another congestion uplink control method according to an embodiment of the present invention. The PGW in the present embodiment has the same function as the TDF apparatus or DPI apparatus. The PGW detects the flow description information and the service type of the uplink data message, determines a congestion uplink control strategy corresponding to the flow description information, and constructs a downlink data message corresponding to the flow description information and sent to a base station by the PGW.

Step 41: and the PGW receives an uplink data message of the UE.

Step 42: the PGW obtains the flow description information and the service type of the uplink data message, and determines a congestion uplink control strategy corresponding to the flow description information.

After acquiring the service type and the flow description information corresponding to the uplink data packet, the PGW may determine whether to issue a congestion uplink control policy corresponding to the flow description information for the base station of the user equipment according to a policy configured by the PCRF for the PGW, so as to determine whether to construct a downlink data packet including the flow description information. The PGW may also determine, according to the service type of the uplink data packet, whether the core network needs to issue a congestion uplink control policy for the base station, for example, when the core network needs to control a service only with uplink data, and determines that the current service of the uplink data packet is a service only with uplink data, construct a downlink data packet including the flow description information in the uplink data packet. The PGW may also determine whether to issue a congestion uplink control policy corresponding to the flow description information for the home base station of the ue according to the location and/or the user subscription information of the ue sending the uplink data packet, so as to determine whether to construct a downlink data packet including the flow description information. If the PGW determines that the user equipment sending the uplink data packet belongs to a base station that is frequently congested and the user of the user equipment is a normal user, it may be determined that a congestion uplink control policy corresponding to the flow description information needs to be issued for the base station of the user equipment.

And when the PGW determines that it is not necessary to issue the congestion uplink control policy corresponding to the flow description information to the base station of the user equipment, it is not necessary to construct a downlink data packet in which the flow description information and the uplink data packet have the same information.

Step 43: and the PGW constructs a downlink data message according to the flow description information of the uplink data message, and encapsulates a congestion uplink control strategy corresponding to the flow description information in a GTP-U head of the downlink data message.

The downlink data message and the uplink data message sent by the UE have the same flow description information. The PGW may also encapsulate the congestion uplink control policy corresponding to the flow description information in a tunnel header encapsulated by IPinIP of the downlink data packet, that is, an outer IP header.

Step 44: and the PGW sends a downlink data message encapsulated with the congestion uplink control strategy to the eNB.

The PGW may set a specific bit field for carrying the congestion uplink control policy in the IP header or the GTP header, for example, when the specific bit field is all zero, it indicates that there is no control policy.

Step 45: and after receiving the downlink data message of the PGW, the eNB stores the congestion uplink control strategy corresponding to the flow description information of the downlink data message in the downlink data message.

Fig. 5 is a flowchart of another congestion uplink control method according to an embodiment of the present invention. In this embodiment, the TDF reports flow description information and a service type of an uplink data packet to a Policy Control and Charging Rules Function (PCRF for short), the PCRF issues a congestion uplink Control Policy of the uplink data packet to the PGW, the PGW constructs a downlink data packet sent to the eNB, and adds a congestion uplink Control Policy corresponding to the flow description information of the downlink data packet to the downlink data packet. As shown in fig. 5, the method provided by this embodiment includes:

step 51: and the TDF receives an uplink data message of the UE.

Step 52: the TDF obtains the traffic type and flow description information of the uplink data packet.

Step 53: and the TDF reports the service type and the flow description information of the uplink data message to the PCRF.

For the same service flow, i.e. the IP packet of the same source and destination address, the TDF only reports the service type and flow description information to the PCRF once.

Step 54: and the PCRF determines a congestion uplink control strategy corresponding to the flow description information.

After acquiring the service type and the flow description information corresponding to the uplink data packet, the PCRF may determine, according to a configured policy, whether it is necessary to issue a congestion uplink control policy corresponding to the flow description information for the base station of the user equipment, so as to determine whether it is necessary to construct a downlink data packet including the flow description information. The PCRF may also determine whether the core network needs to issue a congestion uplink control policy for the base station according to the service type of the uplink data packet, for example, when the core network needs to control a service only with uplink data, and determines that the current service of the uplink data packet is the service only with uplink data, construct a downlink data packet including the flow description information in the uplink data packet. The PCRF may also determine whether to issue a congestion uplink control policy corresponding to the flow description information for the home base station of the ue according to the location and/or the user subscription information of the ue sending the uplink data packet, so as to determine whether to construct a downlink data packet including the flow description information. If the PCRF determines that the ue sending the uplink data packet belongs to a base station that is frequently congested and the user of the ue is a normal user, it may be determined that a congestion uplink control policy corresponding to the flow description information needs to be issued for the base station of the ue.

And when the PCRF determines that the congestion uplink control strategy corresponding to the flow description information does not need to be issued to the base station of the user equipment, the downlink data message with the same flow description information and the uplink data message does not need to be constructed.

The PCRF determines a congestion uplink control strategy according to one or more combinations of the following information: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment. The flow description information may be all or part of IP five-tuple information, that is, a source address, a destination address, a source port number, a destination port number, and a protocol type of the IP packet.

Step 55: and the PCRF sends the flow description information and the congestion uplink control strategy corresponding to the flow description information to the PGW.

Step 56: and the PGW constructs a downlink data message according to the flow description information, and encapsulates a congestion uplink control strategy corresponding to the flow description information in a GTP-U (GPRS tunneling protocol-user) head of the downlink data message.

The flow description information of the downlink data packet constructed by the PGW is the same as the flow description information corresponding to the congestion uplink control policy included therein.

And 57: and the PGW sends a downlink data message to the eNB.

Step 58: and after receiving the downlink data message of the PGW, the eNB stores the congestion uplink control strategy corresponding to the flow description information of the downlink data message in the downlink data message.

Fig. 6 is a schematic structural diagram of a congestion uplink control device according to an embodiment of the present invention. As shown in fig. 6, the apparatus provided in this embodiment includes: a receiving module 61 and a control module 62.

A receiving module 61, configured to receive an uplink data packet of a user equipment;

and a control module 62, configured to perform congestion control on the uplink data packet according to a congestion uplink control policy corresponding to the flow description information in the uplink data packet.

Wherein the congestion uplink control strategy is set according to one or more combinations of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type. The flow description information may be all or part of IP five-tuple information, that is, a source address, a destination address, a source port number, a destination port number, and a protocol type of the IP packet.

The device can also obtain a congestion uplink control strategy according to a downlink data message sent by the core network equipment. Specifically, the receiving module 61 is further configured to receive a downlink data packet sent by a core network device, where the downlink data packet includes a congestion uplink control policy corresponding to flow description information in the downlink data packet, and the congestion uplink control policy is used to perform congestion control on an uplink data packet having the same flow description information as the downlink data packet; and storing the flow description information and a congestion uplink control strategy corresponding to the flow description information.

After the receiving module 61 receives the uplink data packet, if the control module 62 determines that the apparatus is congested, for example, the air interface resource is insufficient, the forwarding capability of the apparatus is insufficient, or the bandwidth of the uplink to the core network is limited, the congestion uplink control policy corresponding to the flow description information in the uplink data packet is searched. And if the congestion uplink control strategy corresponding to the flow description information is found, carrying out congestion control on the uplink data message according to the found congestion uplink control strategy. For example, the congestion uplink control policy may be to limit the bandwidth of a data flow, lower the priority of data transmission, or directly drop the data flow.

In this embodiment, the apparatus stores congestion uplink control policies corresponding to different flow description information, and performs congestion control on an uplink data packet according to the congestion uplink control policy corresponding to the flow description information in the uplink data packet when receiving the uplink data packet, so as to achieve the purpose of differentiated scheduling of the uplink data packet and improve the working efficiency of the base station.

Fig. 7A is a schematic structural diagram of a congestion uplink control device according to an embodiment of the present invention. The apparatus may be a PGW or an SGSN. As shown in fig. 7A, the present embodiment provides an apparatus including: an encapsulation module 71 and a transmission module 72.

The encapsulation module 71 is configured to encapsulate a downlink data packet, where the downlink data packet includes a congestion uplink control policy corresponding to flow description information in the downlink data packet, and the congestion uplink control policy is used to perform congestion control on an uplink data packet that has the same flow description information as the downlink data packet.

A sending module 72, configured to send the downlink data packet to the base station.

The encapsulation module 71 encapsulates the downlink data packet including the congestion uplink control policy. Different flow description information corresponds to different congestion uplink control strategies. The flow description information corresponding to the congestion uplink control strategy included in the downlink data packet is the same as the flow description information of the downlink data packet. And the congestion uplink control strategy is used for carrying out congestion control on the uplink data message which has the same flow description information as the downlink data message. The congestion uplink control policy encapsulated by the encapsulation module 71 in the downlink data packet may be determined by the apparatus, or may be obtained by the apparatus from a policy control entity, for example, from a PCRF.

In this embodiment, the downlink data packet sent by the device to the base station includes a congestion uplink control policy of an uplink data packet having the same flow description information as the downlink data packet, so that the base station can obtain the congestion uplink control policy, thereby performing congestion control on the uplink data packet.

As shown in fig. 7B, the apparatus shown in fig. 7A further includes: a receiving module 73.

A receiving module 73, configured to receive, before the downlink data packet is encapsulated, flow description information sent by a policy control entity and a congestion uplink control policy corresponding to the flow description information;

the encapsulation module 71 is further configured to construct a downlink data packet according to the flow description information sent by the policy control entity, where a congestion uplink control policy corresponding to the flow description information is encapsulated in the constructed downlink data packet.

As shown in fig. 7C, the apparatus shown in fig. 7A further includes: a first policy determination module 74.

A first policy determining module 74, configured to detect flow description information and a service type of an uplink data packet sent by a user equipment before encapsulating the downlink data packet; determining a congestion uplink control strategy corresponding to the flow description information of the uplink data message according to one or more combinations of the following information: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment;

the encapsulating module 71 is further configured to construct a downlink data packet sent to the base station according to the flow description information in the uplink data packet, where a congestion uplink control policy corresponding to the flow description information in the uplink data packet is encapsulated in the constructed downlink data packet.

As shown in fig. 7D, the apparatus shown in fig. 7A further includes: a second policy determination module 75.

A second policy determining module 75, configured to receive a downlink data packet sent by a service flow detection device before encapsulating the downlink data packet, where the downlink data packet sent by the service flow detection device is constructed by the service flow detection device according to flow description information of a detected uplink data packet, and the downlink data packet sent by the service flow detection device includes a service type of the uplink data packet detected by the service flow device;

the second policy determining module is further configured to determine, according to one or more combinations of the following information, a congestion uplink control policy corresponding to flow description information of a downlink data packet sent by the service flow detection device: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment;

the encapsulating module 71 is further configured to encapsulate, in a downlink data packet sent by the service flow detection device, a congestion uplink control policy corresponding to flow description information in the downlink data packet.

Fig. 8 is a schematic structural diagram of another congestion uplink control device according to an embodiment of the present invention. The apparatus may be a TDF or DPI device. As shown in fig. 8, the apparatus provided in this embodiment includes: a detection module 81 and a transmission module 82.

A detection module 81, configured to detect a service type and flow description information of an uplink data packet sent by a user equipment;

a sending module 82, configured to construct a downlink data packet according to the flow description information and the service type of the uplink data packet, and send the downlink data packet to a core network device, where the downlink data packet includes indication information used for indicating the service type of the uplink data packet; or,

the sending module 82 is configured to report the service type and the flow description information of the uplink data packet to a policy control entity. The policy control entity may be a PCRF.

If the sending module 82 is configured to send the downlink data packet with the flow description information being the same as the flow description information in the uplink data packet to the core network device:

after acquiring the service type and the flow description information corresponding to the uplink data packet, the detection module 81 may determine, according to a policy configured by the PCRF, whether it is necessary to issue a congestion uplink control policy corresponding to the flow description information for the base station of the user equipment, so as to determine whether it is necessary to construct a downlink data packet including the flow description information; the detection module 81 may also determine whether the core network needs to issue a congestion uplink control policy for the base station according to the service type of the uplink data packet, for example, when the core network needs to control a service only with uplink data, and determines that the current service of the uplink data packet is a service only with uplink data, the core network constructs a downlink data packet including the flow description information in the uplink data packet. The detection module 81 may also determine whether a congestion uplink control policy corresponding to the flow description information needs to be issued for the home base station of the user equipment according to the location and/or the user subscription information of the user equipment that sends the uplink data packet, so as to determine whether a downlink data packet including the flow description information needs to be constructed. If the detection module 81 determines that the ue sending the uplink data packet belongs to a base station that is frequently congested and the user of the ue is a normal user, it may be determined that a congestion uplink control policy corresponding to the flow description information needs to be issued for the base station of the ue.

The detection module 81 determines that it is not necessary to issue the congestion uplink control policy corresponding to the flow description information to the base station of the ue, and it is not necessary to construct a downlink data packet in which the flow description information and the uplink data packet have the same value. When the detection module 81 determines that a congestion uplink control policy corresponding to the flow description information needs to be issued for the base station of the user equipment, the sending module 82 constructs a downlink data packet according to the flow description information and the service type of the uplink data packet, and sends the downlink data packet to core network equipment, where the downlink data packet includes indication information for indicating the service type of the uplink data packet. It should be noted that: for the same service flow, i.e. the IP packet of the same source and destination address, the sending module 82 only reports the service type and the flow description information to the core network device once.

If the sending module 82 is used to report the service type and the flow description information of the uplink data packet to the policy control entity PCRF:

Fig. 9 is a schematic structural diagram of a congestion uplink control device according to an embodiment of the present invention. The apparatus may be a PCRF. As shown in fig. 9, the apparatus provided in this embodiment includes: a receiving module 91, a policy determining module 92 and a policy sending module 93.

The receiving module 91 is configured to receive the service type and the flow description information of the uplink data packet reported by the service flow detection device. Wherein the traffic flow detection device may be a TDF or DPI device,

a policy determining module 92, configured to determine, according to the service type of the uplink data packet and the flow description information, a congestion uplink control policy corresponding to the flow description information, where the congestion uplink control policy is used to perform congestion control on an uplink data packet with the flow description information.

A policy sending module 93, configured to send the flow description information and a congestion uplink control policy corresponding to the flow description information to a core network device.

After the receiving module 91 obtains the service type and the flow description information corresponding to the uplink data packet, the policy determining module 92 may determine whether to issue a congestion uplink control policy corresponding to the flow description information to the base station of the ue according to the configured policy, so as to determine whether to construct a downlink data packet including the flow description information. The policy determining module 92 may also determine, according to the service type of the uplink data packet, whether the core network needs to issue a congestion uplink control policy for the base station, for example, when the core network needs to control a service only with uplink data, and determines that the current service of the uplink data packet is the service only with uplink data, construct a downlink data packet including the flow description information in the uplink data packet. The policy determining module 92 may also determine whether to issue a congestion uplink control policy corresponding to the flow description information for the home base station of the ue according to the location and/or the user subscription information of the ue sending the uplink data packet, so as to determine whether to construct a downlink data packet including the flow description information. If the policy determining module 92 determines that the ue sending the uplink data packet belongs to a base station that is frequently congested and the user of the ue is a normal user, it may be determined that a congestion uplink control policy corresponding to the flow description information needs to be issued for the base station of the ue.

The policy determining module 92 determines that it is not necessary to issue the congestion uplink control policy corresponding to the flow description information for the base station of the ue, and it is not necessary to configure a downlink data packet whose flow description information is the same as the uplink data packet.

The policy determination module 92 determines the congested uplink control policy based on one or more combinations of the following information: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment. The flow description information may be all or part of IP five-tuple information, that is, a source address, a destination address, a source port number, a destination port number, and a protocol type of the IP packet.

An embodiment of the present invention further provides a base station, including: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the program for:

Wherein the congestion uplink control strategy is set according to one or more combinations of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type.

Optionally, the communication interface is further configured to receive a downlink data packet sent by a core network device, where the downlink data packet includes a congestion uplink control policy corresponding to flow description information in the downlink data packet, and the congestion uplink control policy is used to perform congestion control on an uplink data packet having the same flow description information as the downlink data packet;

the memory is further configured to store the flow description information received by the communication interface and a congestion uplink control policy corresponding to the flow description information.

An embodiment of the present invention further provides a core network device, including: a memory, a processor, a bus, and a communication interface; the processor, the communication interface and the memory complete mutual communication through the bus;

the program comprises a first instruction and a second instruction;

the first instruction is used for encapsulating a downlink data message, wherein the downlink data message comprises a congestion uplink control strategy corresponding to flow description information in the downlink data message, and the congestion uplink control strategy is used for performing congestion control on an uplink data message which has the same flow description information as the downlink data message;

Optionally, the program further includes a third instruction;

the third instruction is configured to receive flow description information sent by a policy control entity and a congestion uplink control policy corresponding to the flow description information before the core network device encapsulates a downlink data packet sent to a base station;

the second instruction is specifically configured to construct a downlink data packet according to the flow description information sent by the policy control entity, where a congestion uplink control policy corresponding to the flow description information is encapsulated in the constructed downlink data packet.

Optionally, the program further includes a fourth instruction;

the fourth instruction is used for detecting the flow description information and the service type of the uplink data message sent by the user equipment before the downlink data message sent to the base station is encapsulated;

the fourth instruction is further configured to determine, according to one or more combinations of the following information, a congestion uplink control policy corresponding to the flow description information of the uplink data packet: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment;

the second instruction is specifically configured to construct a downlink data packet sent to the base station according to the flow description information in the uplink data packet, and a congestion uplink control policy corresponding to the flow description information in the uplink data packet is encapsulated in the constructed downlink data packet.

Optionally, the program further includes a fifth instruction;

the fifth instruction is configured to receive, before the downlink data packet sent to the base station is encapsulated, the downlink data packet sent by service flow detection equipment, where the downlink data packet sent by the service flow detection equipment is constructed by the service flow detection equipment according to flow description information of the detected uplink data packet, and the downlink data packet sent by the service flow detection equipment includes a service type of the uplink data packet detected by the service flow equipment;

the fifth instruction is further configured to determine, according to one or more combinations of the following information, a congestion uplink control policy corresponding to flow description information of a downlink data packet sent by the service flow detection device: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment;

the second instruction is specifically configured to encapsulate, in a downlink data packet sent by the service flow detection device, a congestion uplink control policy corresponding to flow description information in the downlink data packet.

An embodiment of the present invention further provides a service flow detection device, including: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the program for:

Optionally, the traffic flow detection device is a TDF or DPI device, and the policy control entity is a PCRF.

An embodiment of the present invention provides a policy control entity, including: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the program for:

An embodiment of the present invention provides a congestion uplink control system, including: the base station, the core network device, the service detection device, and the policy control entity.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A congestion uplink control method, comprising:

a base station receives an uplink data message of user equipment;

the base station carries out congestion control on the uplink data message according to a congestion uplink control strategy corresponding to the flow description information in the uplink data message;

before the base station receives an uplink data message of user equipment, the method further comprises the following steps:

the base station receives a downlink data message sent by core network equipment, wherein the downlink data message comprises a congestion uplink control strategy corresponding to flow description information in the downlink data message, and the congestion uplink control strategy is used for performing congestion control on an uplink data message which has the same flow description information as the downlink data message;

and the base station stores the flow description information and a congestion uplink control strategy corresponding to the flow description information.

2. The method of claim 1, wherein the congestion uplink control policy is set according to one or more combinations of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type.

3. A congestion uplink control method, comprising:

and the core network equipment sends the downlink data message to a base station.

4. The method of claim 3, wherein:

before the core network device encapsulates a downlink data packet sent to a base station, the method includes:

the core network equipment receives flow description information sent by a policy control entity and a congestion uplink control policy corresponding to the flow description information;

5. The method of claim 3, wherein:

before the core network device encapsulates the downlink data packet sent to the base station, the method further includes:

the core network equipment detects the flow description information and the service type of an uplink data message sent by user equipment;

the core network equipment determines a congestion uplink control strategy corresponding to the flow description information of the uplink data message according to one or more combinations of the following information: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment;

and the core network equipment constructs a downlink data message sent to the base station according to the flow description information in the uplink data message, and a congestion uplink control strategy corresponding to the flow description information in the uplink data message is encapsulated in the constructed downlink data message.

6. The method of claim 3, wherein:

the core network equipment receives a downlink data message sent by service flow detection equipment, the downlink data message sent by the service flow detection equipment is constructed by the service flow detection equipment according to flow description information of a detected uplink data message, and the downlink data message sent by the service flow detection equipment comprises a service type of the uplink data message detected by the service flow detection equipment;

the core network device determines a congestion uplink control strategy corresponding to the flow description information of the downlink data packet sent by the service flow detection device according to one or more combinations of the following information: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment;

and the core network equipment encapsulates a congestion uplink control strategy corresponding to the flow description information in the downlink data message sent by the service flow detection equipment.

7. A congestion uplink control method, comprising:

8. The method of claim 7, wherein the traffic flow detection device is a Traffic Detection Function (TDF) or a Deep Packet Inspection (DPI) device, and the policy control entity is a policy control and charging rules function (PCRF).

9. A congestion uplink control method, comprising:

10. The method of claim 9, wherein the traffic flow detection device is a TDF or DPI device and the policy control entity is a PCRF.

11. A congested uplink control device, comprising:

the control module is used for carrying out congestion control on the uplink data message according to a congestion uplink control strategy corresponding to the flow description information in the uplink data message;

the receiving module is further configured to receive a downlink data packet sent by a core network device, where the downlink data packet includes a congestion uplink control policy corresponding to flow description information in the downlink data packet, and the congestion uplink control policy is used to perform congestion control on an uplink data packet having the same flow description information as the downlink data packet; and storing the flow description information and a congestion uplink control strategy corresponding to the flow description information.

12. The apparatus of claim 11, wherein the congestion uplink control policy is set according to one or more combinations of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type.

13. A congested uplink control device, comprising:

and the sending module is used for sending the downlink data message to a base station.

14. The apparatus of claim 13, further comprising: a receiving module, configured to receive flow description information sent by a policy control entity and a congestion uplink control policy corresponding to the flow description information before the downlink data packet sent to the base station is encapsulated;

15. The apparatus of claim 13, further comprising:

the first strategy determining module is used for detecting the flow description information and the service type of an uplink data message sent by user equipment before a downlink data message sent to a base station is packaged; determining a congestion uplink control strategy corresponding to the flow description information of the uplink data message according to one or more combinations of the following information: the service type of the data message, the user subscription information of the user equipment, the access information of the user equipment and the access technology type of the user equipment;

the encapsulation module is further configured to construct a downlink data packet sent to the base station according to the flow description information in the uplink data packet, and a congestion uplink control policy corresponding to the flow description information in the uplink data packet is encapsulated in the constructed downlink data packet.

16. The apparatus of claim 13, further comprising:

a second policy determining module, configured to receive a downlink data packet sent by a service flow detection device before encapsulating the downlink data packet sent to a base station, where the downlink data packet sent by the service flow detection device is constructed by the service flow detection device according to flow description information of a detected uplink data packet, and the downlink data packet sent by the service flow detection device includes a service type of the uplink data packet detected by the service flow detection device;

the encapsulation module is further configured to encapsulate, in a downlink data packet sent by the service flow detection device, a congestion uplink control policy corresponding to flow description information in the downlink data packet.

17. A congested uplink control device, comprising:

18. The apparatus of claim 17, wherein the apparatus is a TDF or DPI device and the policy control entity is a PCRF.

19. A congested uplink control device, comprising:

20. The apparatus of claim 19, wherein the traffic flow detection device is a TDF or DPI device and the policy control entity is a PCRF.

21. A base station, comprising: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the program for:

22. The base station of claim 21, wherein the congestion uplink control policy is set according to one or more of the following information: the service type of the uplink data message, the user subscription information of the user equipment, the user equipment access information and the user equipment access technology type.

23. The base station according to claim 21 or 22, wherein the communication interface is further configured to receive a downlink data packet sent by a core network device, where the downlink data packet includes a congestion uplink control policy corresponding to flow description information in the downlink data packet, and the congestion uplink control policy is used for performing congestion control on an uplink data packet that has the same flow description information as the downlink data packet;

24. A core network device, comprising: a memory, a processor, a bus, and a communication interface; the processor, the communication interface and the memory complete mutual communication through the bus;

the program, including first and second instructions:

and the second instruction is used for controlling the communication interface to send the downlink data message to a base station.

25. The apparatus of claim 24, wherein the program further comprises third instructions;

the third instruction is configured to control the communication interface to receive flow description information sent by a policy control entity and a congestion uplink control policy corresponding to the flow description information before the core network device encapsulates a downlink data packet;

26. The apparatus of claim 24, wherein said program further comprises fourth instructions;

the fourth instruction is configured to detect flow description information and a service type of an uplink data packet sent by a user equipment before the downlink data packet is encapsulated;

27. The apparatus of claim 24, wherein said program further comprises fifth instructions;

the fifth instruction is configured to receive, before the downlink data packet is encapsulated, a downlink data packet sent by service flow detection equipment, where the downlink data packet sent by the service flow detection equipment is constructed by the service flow detection equipment according to flow description information of a detected uplink data packet, and the downlink data packet sent by the service flow detection equipment includes a service type of the uplink data packet detected by the service flow detection equipment;

28. A traffic flow detection device, comprising: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the program for:

29. The apparatus of claim 28, wherein the traffic flow detection device is a TDF or DPI device and the policy control entity is a PCRF.

30. A policy control entity, comprising: the system comprises a processor, a memory, a communication interface and a bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus;

the program for:

31. The entity according to claim 30, wherein the traffic flow detection device is a TDF or DPI device and the policy control entity is a PCRF.

32. A congested uplink control system, comprising: a base station according to any of claims 21 to 23, a core network device according to any of claims 24 to 27, a traffic flow detection device according to claim 28, and a policy control entity according to claim 30.