WO2014190517A1 - 基于无线通信网络的数据传输控制方法及装置 - Google Patents

基于无线通信网络的数据传输控制方法及装置 Download PDF

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Publication number
WO2014190517A1
WO2014190517A1 PCT/CN2013/076460 CN2013076460W WO2014190517A1 WO 2014190517 A1 WO2014190517 A1 WO 2014190517A1 CN 2013076460 W CN2013076460 W CN 2013076460W WO 2014190517 A1 WO2014190517 A1 WO 2014190517A1
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Prior art keywords
data request
data
request message
terminal
current network
Prior art date
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PCT/CN2013/076460
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English (en)
French (fr)
Inventor
韦安妮
李志明
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP13885910.3A priority Critical patent/EP2991400A4/en
Priority to CN201380002663.0A priority patent/CN104969609B/zh
Priority to PCT/CN2013/076460 priority patent/WO2014190517A1/zh
Publication of WO2014190517A1 publication Critical patent/WO2014190517A1/zh
Priority to US14/950,049 priority patent/US9961590B2/en
Priority to US15/925,138 priority patent/US20180213445A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403Architecture for metering, charging or billing
    • H04L12/1407Policy-and-charging control [PCC] architecture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66Policy and charging system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a data request processing method and apparatus based on a wireless communication network.
  • the terminal After the rate adaptation technology is transplanted from the internet to the wireless communication network, the terminal still performs signal detection and determines the parameters of the requested data according to the detection result. After receiving the data request of the terminal, the network side proceeds to the terminal according to the parameter determined by the terminal. provide data. For example, when the terminal requests the video service from the network side, the terminal determines the code rate of the requested video according to the detected signal strength of the cell, and when detecting that the signal strength of the cell is high, requests the high-definition video, and the network side receives the request of the terminal. After the message, the terminal provides the HD video to the terminal. When the terminal detects that the signal strength of the cell is low, the terminal requests the standard definition video, and after receiving the request message of the terminal, the network side provides the standard definition video to the terminal.
  • the communication environment of the wireless communication network changes frequently and violently. Therefore, the terminal cannot sense the change of the wireless network environment in real time. Therefore, the existing network side-to-terminal data request processing method is not applicable to the wireless communication network. .
  • the wireless communication network suddenly changes to a congestion critical state, and the terminal does not know in time.
  • the network layer still provides high-definition video to the terminal, which is undoubtedly likely to cause congestion in the wireless communication network.
  • an embodiment of the present invention provides a data request processing method and apparatus based on a wireless communication network, and aims to solve the problem that the existing network side-to-terminal data request processing method is not applicable to the wireless communication network.
  • a first aspect of the embodiments of the present invention provides a data request processing method based on a wireless communication network, including:
  • the acquiring data request processing instruction includes:
  • the acquiring data request processing instruction includes:
  • a second aspect of the embodiments of the present invention provides a data request processing method based on a wireless communication network, which is applied to a PCRF in a wireless communication network, and includes:
  • the method further includes:
  • the method further includes:
  • a third aspect of the embodiments of the present invention provides a data request processing apparatus based on a wireless communication network, including:
  • a first sending module configured to send a quality of service request message to the PCRF when receiving the data request message of the terminal
  • An instruction obtaining module configured to acquire a data request processing instruction, where the data request processing instruction is determined according to a current network state and the data request message, where the current network status is The PCRF is obtained according to the received quality of service request message;
  • a processing module configured to process the data request of the terminal according to the data request processing instruction.
  • the instruction acquiring module includes: a first receiving unit, configured to receive a data request processing instruction sent by the PCRF.
  • the instruction acquiring module includes: a second receiving unit, configured to receive, by the PCRF, a message indicating a current network status;
  • an instruction determining unit configured to determine a data request processing instruction according to the current network state and a data parameter carried in the data request message.
  • a fourth aspect of the embodiments of the present invention provides a data request processing apparatus based on a wireless communication network, which is applied to a PCRF in a wireless communication network, and includes:
  • a second receiving module configured to receive a quality of service request message, where the quality of service request message is sent by the sender when receiving the data request message of the terminal;
  • the network status query module is configured to query the current network status according to the quality of service request message.
  • the method further includes:
  • An instruction determining module configured to determine a data request processing instruction according to the current network state and a data parameter carried in the data request message sent by the sender;
  • a second sending module configured to send the data request processing instruction to the sender.
  • the method further includes:
  • the third sending module is configured to send the current network status to the sender.
  • the data request processing method and device based on the wireless communication network provided by the embodiment of the present invention, when receiving the data request message of the terminal, sends a service quality request message to the PCRF, and the PCRF queries the current network state, and the current network state is used for determining.
  • the processing instruction of the data request of the terminal the processing instruction is a basis for processing the data request of the terminal, therefore, the processing of the data request of the terminal does not only depend on the parameter carried in the data request message of the terminal, but also the current network.
  • the state is a constraint, so that the processing of the data request can be adapted to the real-time changes of the wireless communication network.
  • FIG. 1 is a flowchart of a data request processing method based on a wireless communication network according to an embodiment of the present invention
  • FIG. 2 is a flowchart of still another data request processing method based on a wireless communication network according to an embodiment of the present invention
  • FIG. 3 is a flowchart of still another data request processing method based on a wireless communication network according to an embodiment of the present invention
  • FIG. 4 is a flowchart of still another data request processing method based on a wireless communication network according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of still another data request processing method based on a wireless communication network according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a data request processing apparatus based on a wireless communication network according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of another data request processing apparatus based on a wireless communication network according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another data request processing apparatus based on a wireless communication network according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another data request processing apparatus based on a wireless communication network according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another data request processing apparatus based on a wireless communication network according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of another data request processing apparatus based on a wireless communication network according to an embodiment of the present invention
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure
  • FIG. 13 is a schematic structural diagram of a policy control and charging rule function entity according to an embodiment of the present invention.
  • the embodiment of the invention discloses a data request processing method and device based on a wireless communication network
  • the core invention is that, when receiving the data request message of the terminal, the policy control and charging rule function entity to the wireless communication network side (Policy and Charging Rules Function, PCRF) acquires the current network state, determines a data request processing instruction, and processes the data request of the terminal. Therefore, the processing manner of the data request can be determined according to the network state of the wireless communication network, thereby making the data
  • the transmission enables real-time use of the network state of the wireless communication network.
  • the data request processing method based on the wireless communication network disclosed in the embodiment of the present invention, as shown in FIG. 1, may include:
  • S101 Send a quality of service request message to the PCRF when receiving the data request message of the terminal;
  • the data request processing instruction is determined according to a current network state, and the current network status is obtained by the PCRF according to the received quality of service request message.
  • this step may be:
  • the PCRF after receiving the QoS message, the PCRF queries the current network state, and determines a data request processing instruction according to the current network state and the data parameter carried in the data request message sent by the sender of the data request message, and The data request processing instruction is sent to the sender of the network quality of service request message.
  • this step can be:
  • the PCRF when the PCRF receives the QoS request message, it queries the current network state, and the The current network status is sent to the sender of the quality request message, and the sender of the network quality request message determines the data request processing instruction according to the current network status.
  • determining the data request processing instruction is: An instruction indicating that data of a preset code rate smaller than a code rate carried in the data request message is requested, or an instruction indicating that a transmission channel of the switching data is a wireless local area network.
  • S103 Process the data request of the terminal according to the data request processing instruction.
  • the server is generally configured to receive a data request message of a terminal forwarded by a gateway, and respond to the data request message, and send the requested data to the terminal.
  • the method described in this embodiment may be implemented by a device that is separately disposed on the network side of the wireless communication network, and may be implemented by a function module newly added to the gateway integrated in the wireless communication network.
  • the terminal when a terminal requests a data service from a wireless communication network, the terminal generally determines parameters of the data according to the network environment in which the terminal is located. For example, when the terminal requests a video service from the wireless communication network, the terminal according to the current network environment. Determine the bit rate of the video.
  • the air interface conversion of the wireless communication network is generally frequent and violent, and the terminal cannot sense the change of the wireless air interface in real time. Therefore, the determined parameters cannot be adapted to the current network state in real time, for example, the cell where the terminal is located enters a critical state of congestion, and The terminal does not sense the change of the cell status in time, and still requests high-definition video from the wireless communication network. In this case, the cell may be congested.
  • the wireless communication network when the wireless communication network receives the data request message of the terminal, does not directly process the data request message, and uses this as a trigger condition to trigger sending a quality of service request message to the PCRF, and sequentially acquires the current The network state, and based on the current network state as a basis, determining a data request processing instruction, processing the data request of the processing terminal according to the data request processing instruction, thereby, it can be seen that the processing of the data request of the terminal is no longer only based on the terminal
  • the data parameters carried in the data request message sent are also based on the current network status. Therefore, The processing of the data service requested by the terminal can be adapted to the current network state.
  • another data request processing method based on the wireless communication network disclosed in the embodiment of the present invention is applied to the PCRF in the wireless communication network. As shown in FIG. 2, the method may include:
  • the quality of service request message is sent by the sender when receiving the data request message of the terminal.
  • S202 Query the current network status according to the quality of service request message, so as to obtain a data request processing instruction according to the current network status, and process the data request of the terminal according to the data request processing instruction.
  • the data request processing instruction may be determined by the PCRF according to the current network status and the data parameter carried in the data request message sent by the sender, and the data request processing instruction is sent to the sender of the data request message;
  • the current network status may be sent by the PCRF to the sender of the quality of service request message, and the sender determines the data request processing instruction according to the current network status and the data parameter carried in the data request message, and according to the
  • the data request processing instruction, the data request of the terminal is processed, and the specific process of determining the data request processing instruction by the sender is as described in the foregoing embodiment, and details are not described herein again.
  • determining the data request processing instruction according to the current network status and the data parameter carried in the data request message sent by the sender specifically includes:
  • the data that is less than the preset bit rate of the code rate carried in the data request message is determined as a data request processing instruction
  • the transmission channel of the handover data is determined as a data request processing instruction for the wireless local area network.
  • the PCRF of the wireless communication network queries the status of the network for determining the processing instruction of the data request message of the terminal. Therefore, the processing of the data request can adapt to the state of the wireless communication network.
  • the method described in the above embodiment will be described in detail below by taking video data as an example.
  • a data request processing method based on a wireless communication network disclosed in the embodiment of the present invention is applied to the following scenario: adding a service node Service Proxy in a wireless communication network, and the method shown in FIG. 1 is performed by a newly added service node Service Proxy.
  • the service proxy and the PCRF can be connected through the Rx interface.
  • the method may include:
  • a default bearer is established between a User Equipment (UE) and a PDN Gateway (P-GW).
  • UE User Equipment
  • P-GW PDN Gateway
  • S302 The UE requests a video media description related file from the server SP Sever.
  • S303 After monitoring the request of the UE, the P-GW forwards the request to the Service Proxy.
  • S306 The service Proxy forwards the video media description related file response to the P-GW;
  • S307 The P-GW forwards the video media description related file response to the UE;
  • the UE sends a video request message to the P-GW.
  • the code rate of the requested video file may be A.
  • S309 The P-GW forwards the video request message of the UE to the service proxy.
  • the service proxy After receiving the video request message of the UE, the service proxy sends a QoS request message to the PCRF.
  • the QoS request message usually carries the requested video length, resolution, and code rate.
  • the service proxy can provide service information to the PCRF through an AAR message and request a control policy.
  • the format of the AAR message is as follows:
  • the Service proxy provides video-related service information in the Media-Component-Description AVP.
  • the Media-Component-Description AVP needs to be extended.
  • the Media-Bitrate-Suggestion is used to indicate the rate information recommended by the PCRF.
  • the Media-Component-Description AVP format is:
  • the preset code rate is smaller than the code rate carried in the data request message.
  • the PCRF may determine the used resources and the unused resource information in the same cell according to the ID of the UE and the ID of the cell, so as to determine whether the cell is congested according to the set congestion threshold, or may distinguish according to the application type and the application ID information.
  • Different applications and different instances of the same application type assume that APP2 is a video service type, and the PCRF sets 30% of the resources allocated to the video service in the same 'zone, and sets the congestion threshold. If the resource information occupied by the video service of the same cell reaches the set congestion threshold, it is considered that there is not enough resources to provide such video service.
  • the PCRF sends a video command requesting a B rate to the Service Proxy. Specifically, the PCRF performs a corresponding indication on the video stream in the AAA Reply Media-Component-Description AVP according to the service information and the user information.
  • the AAA message format is as follows:
  • Session-Id > Auth- Application-Id ⁇
  • S314 The service proxy sends a video request message with a B rate to the SP Sever.
  • S315 The SP Sever returns a video with a B rate to the Service Proxy.
  • S316 The Service Proxy forwards the video with the bit rate B to the P-GW.
  • S317 The P-GW forwards the video with the bit rate B to the UE.
  • the Service Proxy may also reject the video request, and the specific process is:
  • the 3xx status of the prior art HTTP reply may be utilized or extended to indicate, or a new HTTP status code may be defined to indicate the network status, such as 601 indicating that network congestion cannot support the service, Implement a video request to reject the terminal.
  • the method in this embodiment can obtain the current state of the network and determine the data request processing mode by using the interaction between the added Service Proxy and the PCRF. Therefore, when the network is insufficient to support the data requested by the terminal, the network side may Make adjustments in a timely manner so that the data transmission process can adapt to the state of the network.
  • the function implemented by the service node Service Proxy may be implemented by a gateway in an existing wireless communication network, that is, the existing gateway is improved, so that the gateway function is implemented.
  • Service Proxy features.
  • the purpose of using the newly added service node in this embodiment is to realize the purpose of determining the data request according to the state of the wireless communication network by adding only the service node in the existing wireless communication network, without changing other devices.
  • the data request processing method based on the wireless communication network disclosed in the embodiment of the present invention is applied to the following scenario: adding a service node Service Proxy in the wireless communication network, and the method shown in FIG. 1 is performed by a newly added service node Service Proxy As shown in FIG. 4, it may include:
  • a default bearer is established between a User Equipment (UE) and a PDN Gateway (P-GW).
  • UE User Equipment
  • P-GW PDN Gateway
  • S402 The UE requests a video media description related file from the server SP Sever.
  • S404 After receiving the video media description related file, the service proxy receives the video service event, and forwards the video media description related file to the SP Sever; S405: SP Sever replies to the video media description related file response;
  • S406 The service proxy sends the video media description related file response to the P-GW.
  • S407 The P-GW forwards the video media description related file response to the UE.
  • S408 The UE requests video data.
  • S409 The P-GW forwards the video request message of the UE to the service proxy.
  • the service proxy After receiving the video request message of the UE, the service proxy sends a QoS request message to the PCRF.
  • S412 The PCRF sends the current network status to the Service Proxy.
  • the service proxy sends a video with a rate of B to the SP Sever.
  • the service proxy can be implemented by extending the URL of the HTTP request.
  • the method is that the network adds the corresponding parameter information in the URL to perform the network status-related indication, such as the code rate change indication in the congestion scenario in this embodiment.
  • the inserted parameter information needs to be expressed in WebAPI description language (such as WADL:
  • S415 SP Sever returns a video with a code rate of B to the Service Proxy;
  • S416 The Service Proxy forwards the video with the bit rate B to the P-GW.
  • S417 The P-GW forwards the video with the bit rate B to the UE.
  • the Service Proxy can directly forward the video request message to the SP Sever.
  • the determined data request processing instruction is used.
  • the video request of the terminal may be processed according to the data request message.
  • the Service Proxy has the function of processing the data request of the terminal according to the current network state, so that the response to the data requested by the terminal can be more adapted to the characteristics of the change of the wireless network environment.
  • the data request processing method based on the wireless communication network disclosed in the embodiment of the present invention is applied to the following scenario: adding a service node Service Proxy in the wireless communication network, and the method shown in FIG. 1 is performed by a newly added service node Service Proxy As shown in FIG. 5, it may include:
  • S501 A default bearer is established between a User Equipment (UE) and a PDN Gateway (P-GW).
  • UE User Equipment
  • P-GW PDN Gateway
  • S502 The UE requests a video media description related file from the server SP Sever.
  • the service proxy After receiving the video media description related file, the service proxy receives the video service event, and forwards the video media description related file to the SP Sever.
  • S506 The Service Proxy forwards the video media description related file response to the P-GW.
  • S507 The P-GW forwards the video media description related file response to the UE.
  • S508 The UE requests video data.
  • S509 The P-GW forwards the video request message of the UE to the service proxy.
  • the PCRF sends the transmission channel of the handover data to the command of the WLAN.
  • the PCRF can obtain the access mode of the UE from the P-GW, such as LTE and WLAN, and then obtain the service information from the Server Proxy, and then combine the user.
  • the information such as the PCRF, determines that the current wireless network where the UE is located cannot provide the requested service for the user, and performs handover from LTE to WLAN.
  • the PCRF may send a handover indication to the P-GW.
  • the handover indicates that the AVP of the CCA message sent to the P-GW by the extended PCRF can be carried.
  • the specific format of the message is:
  • the PCRF may send the command to the Service Proxy, and the service proxy may forward the message to the gateway, and may also directly send the message to the gateway.
  • S514 The gateway establishes a wireless local area network link with the UE, and uses the wireless local area network to transmit the data requested by the UE.
  • the data transmission channel is switched to the wireless local area network, thereby avoiding burdening the wireless communication network.
  • the embodiment of the invention discloses a data request processing device based on a wireless communication network, such as As shown in FIG. 6, it may include:
  • the first sending module 601 is configured to: when receiving the data request message of the terminal, send a quality of service request message to the PCRF;
  • the instruction obtaining module 602 is configured to obtain a data request processing instruction, where the data request processing instruction is determined according to a current network state and the data request message, where the current network status is determined by the PCRF according to the received quality of service request message. Query is obtained;
  • the processing module 603 is configured to process the data request of the terminal according to the data request processing instruction.
  • Another data request processing apparatus based on the wireless communication network disclosed in the embodiment of the present invention, as shown in FIG. 7, may include:
  • the first receiving module 701 is configured to receive a data request message of the terminal.
  • the first sending module 702 is configured to: when receiving the data request message of the terminal, send a quality of service request message to the PCRF;
  • the first receiving unit 703 is configured to receive a data request processing instruction sent by the PCRF, where the data request processing instruction determines the data request message according to a current network status, and the current network status is received by the PCRF.
  • the service quality request message to the query is obtained;
  • the processing module 704 is configured to process the data request of the terminal according to the data request processing instruction.
  • the device in this embodiment may be configured on the network side of the wireless communication network, and is a newly added service node on the network side, and is connected to the PCRF through the RX interface.
  • Another data request processing apparatus based on the wireless communication network disclosed in the embodiment of the present invention, as shown in FIG. 8, may include:
  • the first sending module 801 is configured to: when receiving the data request message of the terminal, send a quality of service request message to the PCRF;
  • the second receiving unit 802 is configured to receive, by the PCRF, a message indicating a current network status.
  • the instruction determining unit 803 is configured to determine a data request processing instruction according to the current network state.
  • the instruction determining unit may specifically include:
  • a code rate determining subunit configured to: if the current network traffic of the cell where the terminal is located is greater than a preset congestion threshold, determine an instruction to request data that is smaller than a preset bit rate of a code rate carried in the data request message. Processing instructions for data requests;
  • a transmission channel determining subunit configured to determine, as a data request processing instruction, an instruction indicating that the transmission channel of the switching data is a wireless local area network, if the current network traffic of the cell where the terminal is located is greater than a preset congestion threshold;
  • the requesting unit 804 is configured to: when the instruction for requesting the data that is smaller than the preset code rate of the code rate carried in the data request message is determined as the data request processing instruction, request the server to obtain the code rate as the preset code rate.
  • the data ;
  • the forwarding unit 805 is configured to forward, by the gateway, the data whose code rate is the preset code rate to the terminal by using a gateway.
  • the device described in FIG. 6 and FIG. 8 may be a function node disposed in a wireless communication network, or may be a new function module in a gateway in the wireless communication network, and the function thereof is to adapt the processing of the data request of the terminal. Real-time changes in the network environment.
  • the data request processing apparatus based on the wireless communication network disclosed in the embodiment of the present invention is applied to the PCRF in the wireless communication network. As shown in FIG. 9, the method may include:
  • the second receiving module 901 is configured to receive a quality of service request message, where the network quality of service request message is sent by the sender when receiving the data request message of the terminal;
  • the network status querying module 902 is configured to query the current network status according to the quality of service request message, where the current network status is used to obtain a data request processing instruction, where the data request processing instruction is the sender processing The basis for the data request of the terminal.
  • the data request processing apparatus based on the wireless communication network disclosed in this embodiment, which is applied to the PCRF in the wireless communication network, as shown in FIG. 10, may include:
  • the second receiving module 1001 is configured to receive a quality of service request message, where the quality of service request is The message is sent by the sender when receiving the data request message of the terminal;
  • the network status query module 1002 is configured to query a current network status according to the network quality of service request message.
  • the instruction determining module 1003 is configured to determine a data request processing instruction according to the current network status and a data parameter carried in the data request message sent by the sender;
  • the instruction determining module may include:
  • a rate determining unit configured to determine, if the current network traffic of the cell where the terminal is located, is greater than a preset congestion threshold, an instruction to request data that is smaller than a preset bit rate of a code rate carried in the data request message is Data request processing instruction;
  • the transmission channel determining unit is configured to determine, as the data request processing instruction, an instruction indicating that the transmission channel of the switching data is a wireless local area network, if the current network traffic of the cell where the terminal is located is greater than a preset congestion threshold.
  • the second sending module 1004 is configured to send the data request processing instruction to the sender.
  • the data request processing device based on the wireless communication network disclosed in this embodiment, which is applied to the PCRF in the wireless communication network, as shown in FIG. 11, may include:
  • the second receiving module 1101 is configured to receive a quality of service request message, where the quality of service request message is sent by the sender when receiving the data request message of the terminal;
  • the network status query module 1102 is configured to query the current network status according to the quality of service request message.
  • the third sending module 1103 is configured to send the current network status to the sender.
  • the embodiment of the present invention further discloses a communication device. As shown in FIG. 12, the method includes: a first input/output interface 1201, configured to send, to a policy control and charging rule function entity PCRF, when receiving a data request message of the terminal Service quality request message;
  • the first processor 1202 is configured to acquire a data request processing instruction, where the data request processing instruction is determined according to a current network state and the data request message, where the current network status is determined by the PCRF according to the received quality of service request. Obtaining a message query, and processing a data request of the terminal according to the data request processing instruction;
  • the first memory 1203 is configured to store a program in the first processor and data generated during the operation.
  • the embodiment of the present invention further discloses a policy control and charging rule function entity, as shown in FIG. 13, including:
  • the second input/output interface 1301 is configured to receive a quality of service request message, where the quality of service request message is sent by the sender when receiving the data request message of the terminal;
  • the second processor 1302 is configured to query, according to the quality of service request message, a current network state, where the current network state is used to acquire a data request processing instruction, where the data request processing instruction is processed by the sender The basis of the data request of the terminal;
  • the second memory 1303 is configured to store a program in the second processor and data generated during the operation.
  • the functions described in the method of the present embodiment can be stored in a readable storage medium of a computing device if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, a portion of the embodiments of the present invention that contributes to the prior art or a portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a
  • the computing device (which may be a personal computer, server, mobile computing device, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例提供的基于无线通信网络的数据请求处理方法及装置,在接收到终端的数据请求消息时,向PCRF发送服务质量请求消息,PCRF查询当前的网络状态,以便于依据当前的网络状态及所述数据请求消息确定对终端的数据请求的处理指令,并依据所述处理指令处理终端的数据请求,因此,对终端的数据请求的处理不仅仅依赖于终端的数据请求消息中携带的参数,还以当前的网络状态为约束条件,所以,使得对数据请求的处理方式能够适应无线通信网络的实时变化。

Description

基于无线通信网络的数据传输控制方法及装置 技术领域
本发明涉及无线通信领域, 尤其涉及一种基于无线通信网络的数据请 求处理方法及装置。
背景技术
随着无线通信网络的快速发展, 各种数据业务由 internet不断涌入无 线通信网络。码率适配技术从 internet移植到无线通信网络后,依然由终端 进行信号检测并依据检测的结果确定请求的数据的参数, 网络侧在接收到 终端的数据请求后, 依据终端确定的参数向终端提供数据。 例如, 终端向 网络侧请求视频业务时, 终端依据检测到的小区的信号强度确定请求的视 频的码率, 当检测到小区的信号强度较高时, 请求高清视频, 网络侧接收 到终端的请求消息后, 向终端提供高清视频; 当终端检测到小区的信号强 度较低时, 请求标清视频, 网络侧接收到终端的请求消息后, 向终端提供 标清视频。
与 internet相比, 无线通信网络的通信环境变化频繁且剧烈, 因此, 终 端无法实时感知无线网络环境的变化, 所以, 现有的网络侧对终端的数据 请求的处理方法并不适用于无线通信网络。 例如, 无线通信网络突变为拥 塞临界状态, 而终端没有及时感知, 请求高清视频时, 网络层仍然会向终 端提供高清视频, 而这无疑极容易导致无线通信网络的拥塞。
发明内容
有鉴于此, 本发明实施例提供了一种基于无线通信网络的数据请求处 理方法及装置, 目的在于解决现有的网络侧对终端的数据请求的处理方法 不适用于无线通信网络的问题。
为了实现上述目的, 本发明实施例提供了以下技术方案:
本发明实施例的第一方面提供了一种基于无线通信网络的数据请求处 理方法, 包括:
当接收到终端的数据请求消息时, 向 PCRF发送服务质量请求消息; 获取数据请求处理指令, 所述数据请求处理指令依据当前的网络状态 及所述数据请求消息确定, 所述当前的网络状态由所述 PCRF依据接收到 的服务质量请求消息查询得到;
依据所述数据请求处理指令, 处理所述终端的数据请求。
在本发明的第一方面的第一实现方式中, 所述获取数据请求处理指令 包括:
接收所述 PCRF发送的数据请求处理指令。
在本发明的第一方面的第二实现方式中, 所述获取数据请求处理指令 包括:
接收所述 PCRF发送的指示当前的网络状态的消息;
依据所述当前的网络状态及所述数据请求消息中携带的数据参数, 确 定数据请求处理指令。 本发明实施例的第二方面提供了一种基于无线通信 网络的数据请求处理方法, 应用于无线通信网络中的 PCRF, 包括:
接收服务质量请求消息, 所述服务质量请求消息由发送方在接收到终 端的数据请求消息时发送;
依据所述服务质量请求消息, 查询当前的网络状态, 以便于依据所述 当前的网络状态,获取数据请求处理指令, 并依据所述数据请求处理指令, 处理所述终端的数据请求。
在本发明的第二方面的第一实现方式中, 还包括:
依据所述当前的网络状态及所述发送方发送的所述数据请求消息中携 带的数据参数, 确定数据请求处理指令;
发送所述数据请求处理指令给所述发送方。
在本发明的第二方面的第二实现方式中, 还包括:
发送所述当前的网络状态给所述发送方。
本发明实施例的第三方面提供了一种基于无线通信网络的数据请求处 理装置, 包括:
第一发送模块, 用于当接收到终端的数据请求消息时, 向 PCRF发送 服务质量请求消息;
指令获取模块, 用于获取数据请求处理指令, 所述数据请求处理指令 依据当前的网络状态及所述数据请求消息确定, 所述当前的网络状态由所 述 PCRF依据接收到的服务质量请求消息查询得到;
处理模块, 用于依据所述数据请求处理指令, 处理所述终端的数据请 求。
在本发明的第三方面的第一实现方式中, 所述指令获取模块包括: 第一接收单元, 用于接收所述 PCRF发送的数据请求处理指令。
在本发明的第三方面的第二实现方式中, 所述指令获取模块包括: 第二接收单元, 用于接收所述 PCRF发送的指示当前的网络状态的消 息;
指令确定单元, 用于依据所述当前的网络状态及所述数据请求消息中 携带的数据参数, 确定数据请求处理指令。
本发明实施例的第四方面提供了一种基于无线通信网络的数据请求处 理装置, 应用于无线通信网络中的 PCRF, 包括:
第二接收模块, 用于接收服务质量请求消息, 所述服务质量请求消息 由发送方在接收到终端的数据请求消息时发送;
网络状态查询模块, 用于依据所述服务质量请求消息, 查询当前的网 络状态。
在本发明的第三方面的第一实现方式中, 还包括:
指令确定模块, 用于依据所述当前的网络状态及所述发送方发送的所 述数据请求消息中携带的数据参数, 确定数据请求处理指令;
第二发送模块, 用于发送所述数据请求处理指令给所述发送方。
在本发明的第三方面的第二实现方式中, 还包括:
第三发送模块, 用于发送所述当前的网络状态给所述发送方。
本发明实施例提供的基于无线通信网络的数据请求处理方法及装置, 在接收到终端的数据请求消息时, 向 PCRF发送服务质量请求消息, PCRF 查询当前的网络状态, 当前的网络状态用于确定对终端的数据请求的处理 指令, 所述处理指令为处理终端的数据请求的依据, 因此, 对终端的数据 请求的处理不仅仅依赖于终端的数据请求消息中携带的参数, 还以当前的 网络状态为约束条件, 所以, 使得对数据请求的处理方式能够适应无线通 信网络的实时变化。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附 图。
图 1为本发明实施例公开的一种基于无线通信网络的数据请求处理方 法的流程图;
图 2为本发明实施例公开的又一种基于无线通信网络的数据请求处理 方法的流程图;
图 3为本发明实施例公开的又一种基于无线通信网络的数据请求处理 方法的流程图;
图 4为本发明实施例公开的又一种基于无线通信网络的数据请求处理 方法的流程图;
图 5为本发明实施例公开的又一种基于无线通信网络的数据请求处理 方法的流程图;
图 6为本发明实施例公开的一种基于无线通信网络的数据请求处理装 置的结构示意图;
图 Ί为本发明实施例公开的又一种基于无线通信网络的数据请求处理 装置的结构示意图;
图 8为本发明实施例公开的又一种基于无线通信网络的数据请求处理 装置的结构示意图;
图 9为本发明实施例公开的又一种基于无线通信网络的数据请求处理 装置的结构示意图;
图 10 为本发明实施例公开的又一种基于无线通信网络的数据请求处 理装置的结构示意图;
图 1 1 为本发明实施例公开的又一种基于无线通信网络的数据请求处 理装置的结构示意图;
图 12为本发明实施例公开的一种通信设备的结构示意图; 图 13 为本发明实施例公开的一种策略控制和计费规则功能实体的结 构示意图。
具体实施方式
本发明实施例公开了一种基于无线通信网络的数据请求处理方法及装 置, 其核心发明点在于, 当接收到终端的数据请求消息时, 向无线通信网 络侧的策略控制和计费规则功能实体( Policy and Charging Rules Function, PCRF )获取当前的网络状态, 确定数据请求处理指令, 对终端的数据请求 进行处理, 因此, 能够依据无线通信网络的网络状态确定对数据请求的处 理方式, 从而使得数据的传输能够实时使用无线通信网络的网络状态。 本发明实施例公开的一种基于无线通信网络的数据请求处理方法, 如 图 1所示, 可以包括:
S101 : 当接收到终端的数据请求消息时, 向 PCRF发送服务质量请求 消息;
S102: 获取数据请求处理指令;
本实施例中, 所述数据请求处理指令依据当前的网络状态确定, 而所 述当前的网络状态由所述 PCRF依据接收到的服务质量请求消息查询得 到。
具体地, 此步骤的具体实现方式可以为:
接收所述 PCRF发送的数据请求处理指令。
即 PCRF接收到服务质量请求消息后, 查询当前的网络状态, 再依据 当前的网络状态及所述数据请求消息的发送方发送的所述数据请求消息中 携带的数据参数确定数据请求处理指令, 并将所述数据请求处理指令发送 给网络服务质量请求消息的发送方。
或者, 此步骤另一种具体的实现方式可以为:
接收所述 PCRF发送的指示当前的网络状态的消息;
依据所述当前的网络状态及所述数据请求消息中携带的数据参数, 确 定数据请求处理指令。
即 PCRF在接收到 QoS请求消息时, 查询当前的网络状态, 并将所述 当前的网络状态发送给质量请求消息的发送方, 由所述网络质量请求消息 的发送方依据当前的网络状态, 确定数据请求处理指令。
不论由哪一方确定数据请求处理指令, 如果所述终端所在的小区当前 的网络流量大于预设的拥塞门限时, 说明所述小区的资源的使用已经趋于 饱和, 则确定数据请求处理指令为: 指示将请求小于所述数据请求消息中 携带的码率的预设码率的数据的指令, 或者, 指示切换数据的传输通道为 无线局域网的指令。
S103: 依据所述数据请求处理指令, 处理所述终端的数据请求。
如果 S102中确定的数据请求处理指令的内容为:请求小于所述数据请 求消息中携带的码率的预设码率的数据,则 S103中,向服务器请求所述预 设码率的数据, 并将所述服务器发送的所述预设码率的数据通过网关转发 给所述终端。 所述服务器在现有技术中, 通常用于接收由网关转发的终端 的数据请求消息, 并对所述数据请求消息做出响应, 向终端发送其请求的 数据。
本实施例所述的方法, 可以由单独设置在无线通信网络的网络侧的装 置实现, 可以由集成于无线通信网络中的网关中新增的功能模块实现。
现有技术中, 在终端向无线通信网络请求数据业务时, 通常由终端依 据自身所处的网络环境确定数据的参数, 例如, 终端向无线通信网络请求 视频业务时, 由终端依据当前的网络环境确定视频的码率。 而无线通信网 络的空口变换一般较为频繁和剧烈,终端不能实时地感应无线空口的变化, 因此, 其确定的参数不能实时适应当前的网络状态, 例如, 终端所在的小 区进入拥塞的临界状态, 而终端没有及时感应到小区状态的变化, 仍向无 线通信网络请求高清视频, 在这种情况下, 会导致所述小区的拥塞。
而本实施例所述的方法, 在无线通信网络接收到终端的数据请求消息 时, 不会直接处理此数据请求消息, 而将此作为触发条件, 触发向 PCRF 发送服务质量请求消息, 依次获取当前的网络状态, 并以当前的网络状态 作为依据之一, 确定数据请求处理指令, 按照所述数据请求处理指令处理 终端的数据请求, 由此可见, 对终端的数据请求的处理不再仅仅依据终端 发送的数据请求消息中携带的数据参数, 还依据当前的网络状态, 因此, 使得对终端请求的数据业务的处理能够适应当前网络状态。 与上述实施例相对应地, 本发明实施例公开的又一种基于无线通信网 络的数据请求处理方法, 应用于无线通信网络中的 PCRF, 如图 2所示, 可以包括:
S201 : 接收服务质量请求消息;
所述服务质量请求消息由发送方在接收到终端的数据请求消息时发 送。
S202: 依据所述服务质量请求消息, 查询当前的网络状态, 以便于依 据所述当前的网络状态, 获取数据请求处理指令, 并依据所述数据请求处 理指令, 处理所述终端的数据请求。
具体地, 可以由 PCRF依据当前的网络状态及所述发送方发送的所述 数据请求消息中携带的数据参数, 确定数据请求处理指令, 并将数据请求 处理指令发送到数据请求消息的发送方; 也可以由 PCRF将当前的网络状 态发送给服务质量请求消息的发送方, 由所述发送方依据当前的网络状态 及所述数据请求消息中携带的数据参数, 确定数据请求处理指令, 并依据 所述数据请求处理指令, 处理所述终端的数据请求, 由所述发送方确定数 据请求处理指令的具体过程如上述实施例所述, 这里不再贅述。
本实施例中, 依据所述当前的网络状态及所述发送方发送的所述数据 请求消息中携带的数据参数, 确定数据请求处理指令具体包括:
如果所述终端所在小区当前的网络流量大于预设的拥塞门限, 则将请 求小于所述数据请求消息中携带的码率的预设码率的数据确定为数据请求 处理指令;
或者, 如果所述终端所在小区当前的网络流量大于预设的拥塞门限, 则将切换数据的传输通道为无线局域网确定为数据请求处理指令。
本实施例所述的方法, 无线通信网络的 PCRF查询网络的状态, 用于 确定终端的数据请求消息的处理指令, 因此, 对数据请求的处理能够适应 无线通信网络的状态。 以下将以视频数据为例, 对上述实施例所述的方法进行详细的描述。 本发明实施例公开的一种基于无线通信网络的数据请求处理方法, 应 用于以下场景: 在无线通信网络中增加业务节点 Service Proxy, 图 1所示 的方法由新增的业务节点 Service Proxy执行, Service proxy与 PCRF可以 通过 Rx接口连接, 如图 3所示, 所述方法可以包括:
S301 : 终端( User Equipment, UE )与分组数据网网关( PDN Gateway, P-GW )之间建立默认承载;
S302: UE向服务器 SP Sever请求视频媒体描述相关文件;
S303: P-GW监测到 UE的请求后, 将请求转发给 Service Proxy; S304: Service Proxy接收到视频媒体描述相关文件后, 监测到视频业 务事件, 并向 SP Sever转发视频媒体描述相关文件;
S305: SP Sever回复视频媒体描述相关文件响应;
S306: Service Proxy将视频媒体描述相关文件响应转发给 P-GW; S307: P-GW将视频媒体描述相关文件响应转发给 UE;
S308: UE向 P-GW发送视频请求消息; 其中, 请求的视频文件的码 率可以为 A。
S309: P-GW向 Service Proxy转发 UE的视频请求消息;
S310: Service Proxy接收到 UE的视频请求消息后,向 PCRF发送 QoS 请求消息;
QoS请求消息中通常携带请求的视频长度、 分辨率、 码率等参数。 具体地, Service proxy可以通过 AAR消息向 PCRF提供业务信息并请 求控制策略, AAR消息格式如下:
<AA-Request> ::= < Diameter Header: 265, REQ, PXY >
< Session-Id >
{ Auth- Application-Id }
{ Origin-Host }
{ Origin-Realm }
{ Destination-Realm }
[ Destination-Host ] [ IP-Domain-Id ]
[ AF -Application-Identifier ]
* [ Media-Component-Description ]
[ Service-Info-Status ]
[ AF-Charging-Identifier ]
[ SIP-Forking-Indication ]
* [ Specific-Action ]
* [ Subscription-Id ]
* [ Supported-Features ]
[ Reservation-Priority ]
[ Framed-IP-Address ]
[ Framed-IPv6-Prefix ]
[ Called- Station-Id ]
[ Service-URN ]
[ Sponsored-Connectivity-Data ]
[ MPS-Identifier ]
[ Rx-Request-Type ]
* [ Required- Access-Info ]
[ Origin-State-Id ]
* [ Proxy-Info ]
* [ Route-Record ]
*[ AVP ]
Service proxy在 Media-Component-Description AVP中提供视频相关业 务信 息 , Media-Component-Description AVP 需 要扩展 , 增 力口 [ Media-Bitrate-Suggestion ]用于指示 PCRF建议的码率信息。
Media-Component-Description AVP格式为:
Media-Component-Description ::= < AVP Header: 517 >
{ Media-Component-Number }; Ordinal number of the media comp. *[ Media-Sub-Component ]; Set of flows for one flow identifier [ AF-Application-Identifier ]
[ Media-Type ]
[ Max-Requested-Bandwidth-UL ]
[ Max-Requested-Bandwidth-DL ]
[ Min-Requested-Bandwidth-UL ]
[ Min-Requested-Bandwidth-DL ]
[ Media-Bitrate- Suggestion ]
[ Flow-Status ]
[ Reservation-Priority ]
[ RS-Bandwidth ]
[ RR-Bandwidth ]
*[ Codec-Data ]
S311 : PCRF接收到 QoS请求消息后, 查询当前的网络状态;
S312: 如果 PCRF确定所述终端所在小区当前的网络流量大于预设的 拥塞门限, 则将请求预设码率的视频确定为数据请求处理指令;
其中, 预设码率小于所述数据请求消息中携带的码率。
PCRF可以根据 UE 的 ID和小区的 ID确定同一小区内已经使用的资 源和未使用的资源信息, 从而根据设定的拥塞门限判断小区是否拥塞, 也 可以才艮据应用类型和应用 ID信息来区分不同应用和同一应用类型的不同 实例,假设 APP2为视频业务类型, PCRF设定同一' 区内分配给视频业务 的资源有 30%, 并设定好拥塞门限。 如同一小区视频业务占用的资源信 息到达设定的拥塞门限, 则认为没有足够的资源提供给此类视频业务。
S313: PCRF向 Service Proxy发送请求码率为 B的视频指令; 具体地, PCRF根据业务信息以及用户信息, 在 AAA回复 Media-Component-Description AVP中对视频流做相应的指示。
AAA消息格式如下:
<AA-Answer>: := < Diameter Header: 265, PXY >
< Session-Id > Auth- Application-Id }
Origin-Host }
Origin-Realm }
Result-Code ]
Experimental-Result ]
Access-Network-Charging-Identifier ]
Access-Network-Charging-Address ]
Acceptable- Service-Info ]
IP- CAN- Type ]
RAT-Type ]
Flows ]
Supported-Features ]
*[ Class ]
Error-Message ]
Error-Reporting-Host ]
Failed-AVP ]
Origin- State-Id ]
[ Redirect-Host ]
[ Redirect-Host-Usage ]
[ Redirect-Max-Cache-Time ]
[ Proxy-Info ]
*[ AVP ] S314: Service Proxy向 SP Sever发送码率为 B的视频请求消息; S315: SP Sever向 Service Proxy回复码率为 B的视频;
S316: Service Proxy向 P-GW转发码率为 B的视频;
S317: P-GW向 UE转发码率为 B的视频。
本实施例中, 除了降低请求的视频的码率之外 , Service Proxy还可以 拒绝视频请求, 具体的过程为:
当网络资源不足以为用户提供视频服务时, 可以利用或扩展现有技术 HTTP 回复的 3xx状态来指示, 或者定义新的 HTTP状态代码, 用于指示 网络状况, 如 601表示网络拥塞不能支持服务, 以实现拒绝终端的视频请 求。
本实施例所述的方法,通过新增的 Service Proxy与 PCRF之间的交互, 能够获取网络的当前状态, 确定数据请求处理方式, 因此, 当网络不足以 支持终端请求的数据时, 网络侧可以及时做出调整, 从而使得数据传输过 程能够适应网络的状态。
需要说明的是, 本实施例所述的方法中业务节点 Service Proxy实现的 功能可以由现有的无线通信网络中的网关实现, 即改进现有的网关, 使其 在实现网关功能的基础上实现 Service Proxy的功能。 本实施例中使用新增 业务的节点目的在于, 在现有的无线通信网络中仅新增业务节点即可实现 依据无线通信网络的状态确定数据请求的目的, 而不需要改变其它设备。 本发明实施例公开的又一种基于无线通信网络的数据请求处理方法, 应用于以下场景: 在无线通信网络中增加业务节点 Service Proxy, 图 1所 示的方法由新增的业务节点 Service Proxy执行, 如图 4所示, 可以包括:
S401 : 终端( User Equipment, UE )与分组数据网网关( PDN Gateway, P-GW )之间建立默认承载;
S402: UE向服务器 SP Sever请求视频媒体描述相关文件;
S403: P-GW监测到 UE的请求后, 将请求转发给 Service Proxy;
S404: Service Proxy接收到视频媒体描述相关文件后, 监测到视频业 务事件, 并向 SP Sever转发视频媒体描述相关文件; S405: SP Sever回复视频媒体描述相关文件响应;
S406: Service Proxy将视频媒体描述相关文件响应转发给 P-GW; S407: P-GW将视频媒体描述相关文件响应转发给 UE;
S408: UE请求视频数据;
S409: P-GW向 Service Proxy转发 UE的视频请求消息;
S410: Service Proxy接收到 UE的视频请求消息后,向 PCRF发送 QoS 请求消息;
S411 : PCRF接收到 QoS请求消息后, 查询当前的网络状态;
S412: PCRF将当前的网络状态发送给 Service Proxy;
S413: 如果 Service Proxy确定所述终端所在小区当前的网络流量大于 预设的拥塞门限, 则将请求预设码率 B的视频确定为数据请求处理指令; 其中, 预设码率小于数据请求消息中携带的码率。
S414: Service Proxy向 SP Sever请求码率为 B的视频; 本实施例中, 具体地, Service Proxy可以通过扩展 HTTP请求的 URL来 实现。 其方法是网络在 URL中增加相应的参数信息, 来进行网络状态相关 的指示, 如本实施例中拥塞场景下的码率变更指示。 具体实现如下: http://sever.example.com /media_A.mp4?Networkstate=LightCongestion, SuggestBitrate=B。 其中, 插入的参数信息, 需要用 WebAPI描述语言来表述(如 WADL:
Web Application Description Language ) , 用于网络实体能够正常解析。
S415: SP Sever向 Service Proxy回复码率为 B的视频;
本实施例中, SP Sever可以在 HTTP 回复消息中,通过 Content-Location 头域, 携带插入网络参数的 URL信息, 用于通知客户端因为网络拥塞而进 行码率变更: 具体实现如下: Content-Location:http://sever xample om/media_A.mp4?Networkstate= LightCongestion, SuggestBitrate=B。
S416: Service Proxy向 P-GW转发码率为 B的视频;
S417: P-GW向 UE转发码率为 B的视频。
需要说明的是, 以上均以终端所在小区当前的网络流量大于预设的拥 塞门限为网络状态的一种具体情况进行描述, 除此以外, 如果当前的网络 状态为终端所在的小区的网络流量不大于预设的拥塞门限, 即当前的小区 能够支持终端请求的数据,则对于 Service Proxy而言,可以直接向 SP Sever 转发视频请求消息, 对于图 3中的 PCRF而言, 确定的数据请求处理指令 可以为依据数据请求消息处理终端的视频请求。
本实施例所述的方法, Service Proxy具有依据当前网络状态处理终端 的数据请求的功能, 从而使得对终端请求的数据的响应能够更加适应无线 网络环境变化的特点。 本发明实施例公开的又一种基于无线通信网络的数据请求处理方法, 应用于以下场景: 在无线通信网络中增加业务节点 Service Proxy, 图 1所 示的方法由新增的业务节点 Service Proxy执行, 如图 5所示, 可以包括:
S501 : 终端( User Equipment, UE )与分组数据网网关( PDN Gateway, P-GW )之间建立默认承载;
S502: UE向服务器 SP Sever请求视频媒体描述相关文件;
S503: P-GW监测到 UE的请求后, 将请求转发给 Service Proxy;
S504: Service Proxy接收到视频媒体描述相关文件后, 监测到视频业 务事件, 并向 SP Sever转发视频媒体描述相关文件;
S505: SP Sever回复视频媒体描述相关文件响应;
S506: Service Proxy将视频媒体描述相关文件响应转发给 P-GW;
S507: P-GW将视频媒体描述相关文件响应转发给 UE;
S508: UE请求视频数据;
S509: P-GW向 Service Proxy转发 UE的视频请求消息;
S510: Service Proxy接收到 UE的视频请求消息后,向 PCRF发送 QoS 请求消息;
S511 : PCRF接收到 QoS请求消息后, 查询当前的网络状态;
S512: 如果 PCRF确定所述终端所在小区当前的网络流量大于预设的 拥塞门限, 则将切换数据的传输通道为无线局域网确定为数据请求处理指 令;
S513: PCRF发送切换数据的传输通道为无线局域网的指令; 本实施例中, PCRF可以从 P-GW获取 UE的接入方式,如 LTE和 WLAN, 则从 Server Proxy获取到业务信息之后, 结合用户信息, 如 PCRF判断目前 UE所在的无线网络不能为此用户提供所请求的服务时, 则执行从 LTE切换 到 WLAN切换。 PCRF可以向 P-GW发送切换指示。切换指示通过扩展 PCRF 向 P-GW发送的 CCA消息的 AVP即可携带。 消息的具体格式为:
Redio— Access— Technology— Handover:: = < AVP Header: xxxx>
[RAT- Type-original] [RAT-Type-Target]
*[AVP]
具体地, PCRF除了可以将指令发送到 Service Proxy, 由 Service Proxy 转发给网关, 也可以直接发送给网关; S514: 网关与 UE建立无线局域网链接,使用所述无线局域网传输 UE 请求的数据。
本实施例所述的方法, 当网络不能支持 UE的数据请求时, 将数据的 传输通道切换到无线局域网, 从而避免加重无线通信网络的负担。 本发明实施例公开了一种基于无线通信网络的数据请求处理装置, 如 图 6所示, 可以包括:
第一发送模块 601 , 用于当接收到终端的数据请求消息时, 向 PCRF 发送服务质量请求消息;
指令获取模块 602, 用于获取数据请求处理指令, 所述数据请求处理 指令依据当前的网络状态及所述数据请求消息确定, 所述当前的网络状态 由所述 PCRF依据接收到的服务质量请求消息查询得到;
处理模块 603 , 用于依据所述数据请求处理指令, 处理所述终端的数 据请求。 本发明实施例公开的又一种基于无线通信网络的数据请求处理装置, 如图 7所示, 可以包括:
第一接收模块 701 , 用于接收终端的数据请求消息;
第一发送模块 702, 用于当接收到终端的数据请求消息时, 向 PCRF 发送服务质量请求消息;
第一接收单元 703 , 用于接收所述 PCRF发送的数据请求处理指令; 其中, 所述数据请求处理指令依据当前的网络状态确定及所述数据请 求消息, 所述当前的网络状态由 PCRF依据接收到的服务质量请求消息查 询得到;
处理模块 704, 用于依据所述数据请求处理指令, 处理所述终端的数 据请求。
本实施例所述的装置可以设置于无线通信网络的网络侧, 作为网络侧 的新增业务节点, 并通过 RX接口与 PCRF相连。 本发明实施例公开的又一种基于无线通信网络的数据请求处理装置, 如图 8所示, 可以包括:
第一发送模块 801 , 用于当接收到终端的数据请求消息时, 向 PCRF 发送服务质量请求消息;
第二接收单元 802, 用于接收所述 PCRF发送的指示当前的网络状态 的消息; 指令确定单元 803 , 用于依据所述当前的网络状态, 确定数据请求处 理指令。
其中, 所述指令确定单元具体可以包括:
码率确定子单元, 用于如果所述终端所在小区当前的网络流量大于预 设的拥塞门限, 则将指示请求小于所述数据请求消息中携带的码率的预设 码率的数据的指令确定为数据请求处理指令;
传输通道确定子单元, 用于如果所述终端所在小区当前的网络流量大 于预设的拥塞门限, 则将指示切换数据的传输通道为无线局域网的指令确 定为数据请求处理指令;
请求单元 804, 用于将指示请求小于所述数据请求消息中携带的码率 的预设码率的数据的指令确定为数据请求处理指令时, 向服务器请求其码 率为所述预设码率的数据;
转发单元 805 , 用于将所述服务器发送的所述其码率为所述预设码率 的数据通过网关转发给所述终端。
图 6及图 8所述的装置可以为设置在无线通信网络中的功能节点, 也 可以为无线通信网络中的网关中新增的功能模块, 其作用在于使得对终端 的数据请求的处理能够适应网络环境的实时变化。 本发明实施例公开的又一种基于无线通信网络的数据请求处理装置, 应用于无线通信网络中的 PCRF, 如图 9所示, 可以包括:
第二接收模块 901 , 用于接收服务质量请求消息, 所述网络服务质量 请求消息由发送方在接收到终端的数据请求消息时发送;
网络状态查询模块 902, 用于依据所述服务质量请求消息, 查询当前的网 络状态,, 所述当前的网络状态用于获取数据请求处理指令, 所述数据请求 处理指令为所述发送方处理所述终端的数据请求的依据。 本实施例公开的又一种基于无线通信网络的数据请求处理装置, 应用 于无线通信网络中的 PCRF, 如图 10所示, 可以包括:
第二接收模块 1001 , 用于接收服务质量请求消息, 所述服务质量请求 消息由发送方在接收到终端的数据请求消息时发送;
网络状态查询模块 1002, 用于依据所述网络服务质量请求消息, 查询 当前的网络状态;
指令确定模块 1003 , 用于依据所述当前的网络状态及所述发送方发送 的所述数据请求消息中携带的数据参数, 确定数据请求处理指令;
具体地, 所述指令确定模块可以包括:
码率确定单元, 用于如果所述终端所在小区当前的网络流量大于预设 的拥塞门限, 则将指示请求小于所述数据请求消息中携带的码率的预设码 率的数据的指令确定为数据请求处理指令;
传输通道确定单元, 用于如果所述终端所在小区当前的网络流量大于 预设的拥塞门限, 则将指示切换数据的传输通道为无线局域网的指令确定 为数据请求处理指令。
第二发送模块 1004, 用于发送所述数据请求处理指令给所述发送方,。 本实施例公开的又一种基于无线通信网络的数据请求处理装置, 应用 于无线通信网络中的 PCRF, 如图 11所示, 可以包括:
第二接收模块 1101 , 用于接收服务质量请求消息, 所述服务质量请求 消息由发送方在接收到终端的数据请求消息时发送;
网络状态查询模块 1102, 用于依据所述服务质量请求消息, 查询当前的网 络状态;
第三发送模块 1103 , 用于发送所述当前的网络状态给所述发送方。 本发明实施例还公开了一种通信设备, 如图 12所示, 包括: 第一输入输出接口 1201 , 用于当接收到终端的数据请求消息时, 向策 略控制和计费规则功能实体 PCRF发送服务质量请求消息;
第一处理器 1202, 用于获取数据请求处理指令, 所述数据请求处理指 令依据当前的网络状态及所述数据请求消息确定, 所述当前的网络状态由 所述 PCRF依据接收到的服务质量请求消息查询得到, 并依据所述数据请 求处理指令, 处理所述终端的数据请求; 第一存储器 1203 , 用于存储所述第一处理器中的程序及运行过程中产 生的数据。
本发明实施例还公开了一种策略控制和计费规则功能实体, 如图 13 所示, 包括:
第二输入输出接口 1301 , 用于接收服务质量请求消息, 所述服务质量 请求消息由发送方在接收到终端的数据请求消息时发送;
第二处理器 1302, 用于依据所述服务质量请求消息, 查询当前的网络 状态, 所述当前的网络状态用于获取数据请求处理指令, 所述数据请求处 理指令为所述发送方处理所述终端的数据请求的依据;
第二存储器 1303 , 用于存储所述第二处理器中的程序及运行过程中产生的 数据。
本实施例方法所述的功能如果以软件功能单元的形式实现并作为独立 的产品销售或使用时, 可以存储在一个计算设备可读取存储介质中。 基于 这样的理解, 本发明实施例对现有技术做出贡献的部分或者该技术方案的 部分可以以软件产品的形式体现出来,该软件产品存储在一个存储介质中, 包括若干指令用以使得一台计算设备(可以是个人计算机, 服务器, 移动 计算设备或者网络设备等)执行本发明各个实施例所述方法的全部或部分 步骤。 而前述的存储介质包括: U盘、 移动硬盘、 只读存储器(ROM, Read-Only Memory )、 随机存取存储器(RAM, Random Access Memory ) 、 磁碟或者光盘等各种可以存储程序代码的介质。
本说明书中各个实施例采用递进的方式描述, 每个实施例重点说明的 都是与其它实施例的不同之处, 各个实施例之间相同或相似部分互相参见 即可。
对所公开的实施例的上述说明, 使本领域专业技术人员能够实现或使 用本发明。 对这些实施例的多种修改对本领域的专业技术人员来说将是显 而易见的, 本文中所定义的一般原理可以在不脱离本发明的精神或范围的 情况下, 在其它实施例中实现。 因此, 本发明将不会被限制于本文所示的 这些实施例, 而是要符合与本文所公开的原理和新颖特点相一致的最宽的 范围。
+

Claims

权 利 要 求
1、 一种基于无线通信网络的数据请求处理方法, 其特征在于, 包括: 当接收到终端的数据请求消息时, 向策略控制和计费规则功能实体
PCRF发送服务质量请求消息;
获取数据请求处理指令, 所述数据请求处理指令依据当前的网络状态 及所述数据请求消息确定, 所述当前的网络状态由所述 PCRF依据接收到 的服务质量请求消息查询得到;
依据所述数据请求处理指令, 处理所述终端的数据请求。
2、根据权利要求 1所述的方法, 其特征在于, 所述获取数据请求处理 指令包括:
接收所述 PCRF发送的数据请求处理指令。
3、根据权利要求 1所述的方法, 其特征在于, 所述获取数据请求处理 指令包括:
接收所述 PCRF发送的指示当前的网络状态的消息;
依据所述当前的网络状态及所述数据请求消息中携带的数据参数, 确 定数据请求处理指令。
4、根据权利要求 3所述的方法, 其特征在于, 所述依据所述当前的网 络状态及所述数据请求消息中携带的数据参数, 确定数据请求处理指令包 括:
如果所述终端所在小区当前的网络流量大于预设的拥塞门限, 则将指 示请求小于所述数据请求消息中携带的码率的预设码率的数据的指令确定 为数据请求处理指令;
或者, 如果所述终端所在小区当前的网络流量大于预设的拥塞门限, 则将指示切换数据的传输通道为无线局域网的指令确定为数据请求处理指 令。
5、根据权利要求 4所述的方法, 其特征在于, 当将指示请求小于所述 数据请求消息中携带的码率的预设码率的数据的指令确定为数据请求处理 指令时, 所述依据所述数据请求处理指令,处理所述终端的数据请求包括: 向服务器请求其码率为所述预设码率的数据; 将所述服务器发送的所述其码率为所述预设码率的数据转发给所述终 端。
6、根据权利要求 1所述的方法, 其特征在于, 在所述当接收到终端的 数据请求消息时, 向 PCRF发送网络服务质量请求消息之前, 还包括: 接收终端的数据请求消息。
7、一种基于无线通信网络的数据请求处理方法,应用于无线通信网络 中的 PCRF, 其特征在于, 包括:
接收服务质量请求消息, 所述服务质量请求消息由发送方在接收到终 端的数据请求消息时发送;
依据所述服务质量请求消息, 查询当前的网络状态, 所述当前的网络 状态用于获取数据请求处理指令, 所述数据请求处理指令为所述发送方处 理所述终端的数据请求的依据。
8、 根据权利要求 7所述的方法, 其特征在于, 还包括:
依据所述当前的网络状态及所述发送方发送的所述数据请求消息中携 带的数据参数, 确定数据请求处理指令;
发送所述数据请求处理指令给所述发送方。
9、根据权利要求 8所述的方法, 其特征在于, 所述依据所述当前的网 络状态及所述发送方发送的所述数据请求消息中携带的数据参数, 确定数 据请求处理指令包括:
如果所述终端所在小区当前的网络流量大于预设的拥塞门限, 则将指 示请求小于所述数据请求消息中携带的码率的预设码率的数据的指令确定 为数据请求处理指令;
或者, 如果所述终端所在小区当前的网络流量大于预设的拥塞门限, 则将指示切换数据的传输通道为无线局域网的指令确定为数据请求处理指 令。
10、 根据权利要求 7所述的方法, 其特征在于, 还包括:
发送所述当前的网络状态给所述发送方。
11、 一种基于无线通信网络的数据请求处理装置, 其特征在于, 包括: 第一发送模块, 用于当接收到终端的数据请求消息时, 向 PCRF发送 服务质量请求消息;
指令获取模块, 用于获取数据请求处理指令, 所述数据请求处理指令 依据当前的网络状态及所述数据请求消息确定, 所述当前的网络状态由所 述 PCRF依据接收到的服务质量请求消息查询得到;
处理模块, 用于依据所述数据请求处理指令, 处理所述终端的数据请 求。
12、 根据权利要求 11所述的装置, 其特征在于, 所述指令获取模块包 括:
第一接收单元, 用于接收所述 PCRF发送的数据请求处理指令。
13、 根据权利要求 11所述的装置, 其特征在于, 所述指令获取模块包 括:
第二接收单元, 用于接收所述 PCRF发送的指示当前的网络状态的消 息;
指令确定单元, 用于依据所述当前的网络状态及所述数据请求消息中 携带的数据参数, 确定数据请求处理指令。
14、根据权利要求 13所述的装置, 其特征在于, 所述指令确定单元包 括:
码率确定子单元, 用于如果所述终端所在小区当前的网络流量大于预 设的拥塞门限, 则将指示请求小于所述数据请求消息中携带的码率的预设 码率的数据的指令确定为数据请求处理指令;
传输通道确定子单元, 用于如果所述终端所在小区当前的网络流量大 于预设的拥塞门限, 则将指示切换数据的传输通道为无线局域网的指令确 定为数据请求处理指令。
15、 根据权利要求 14所述的装置, 其特征在于, 所述处理模块包括: 请求单元, 用于将指示请求小于所述数据请求消息中携带的码率的预 设码率的数据的指令确定为数据请求处理指令时, 向服务器请求其码率为 所述预设码率的数据;
转发单元, 用于将所述服务器发送的所述其码率为所述预设码率的数 据通过网关转发给所述终端。
16、 根据权利要求 11所述的装置, 其特征在于, 还包括: 第一接收模块, 用于接收终端的数据请求消息。
17、 一种基于无线通信网络的数据请求处理装置, 应用于无线通信网 络中的 PCRF, 其特征在于, 包括:
第二接收模块, 用于接收服务质量请求消息, 所述服务质量请求消息 由发送方在接收到终端的数据请求消息时发送;
网络状态查询模块, 用于依据所述服务质量请求消息, 查询当前的网 络状态, 所述当前的网络状态用于获取数据请求处理指令, 所述数据请求 处理指令为所述发送方处理所述终端的数据请求的依据。
18、 根据权利要求 17所述的装置, 其特征在于, 还包括:
指令确定模块, 用于依据所述当前的网络状态及所述发送方发送的所 述数据请求消息中携带的数据参数, 确定数据请求处理指令;
第二发送模块, 用于发送所述数据请求处理指令给所述发送方。
19、根据权利要求 18所述的装置, 其特征在于, 所述指令确定模块包 括:
码率确定单元, 用于如果所述终端所在小区当前的网络流量大于预设 的拥塞门限, 则将指示请求小于所述数据请求消息中携带的码率的预设码 率的数据的指令确定为数据请求处理指令;
传输通道确定单元, 用于如果所述终端所在小区当前的网络流量大于 预设的拥塞门限, 则将指示切换数据的传输通道为无线局域网的指令确定 为数据请求处理指令。
20、 根据权利要求 17所述的装置, 其特征在于, 还包括:
第三发送模块, 用于发送所述当前的网络状态给所述发送方。
21、 一种通信设备, 其特征在于, 包括:
第一输入输出接口, 用于当接收到终端的数据请求消息时, 向策略控 制和计费规则功能实体 PCRF发送服务质量请求消息;
第一处理器, 用于获取数据请求处理指令, 所述数据请求处理指令依 据当前的网络状态及所述数据请求消息确定, 所述当前的网络状态由所述 PCRF依据接收到的服务质量请求消息查询得到, 并依据所述数据请求处 理指令, 处理所述终端的数据请求;
第一存储器, 用于存储所述第一处理器中的程序及运行过程中产生的 数据。
22、 一种策略控制和计费规则功能实体, 其特征在于, 包括: 第二输入输出接口, 用于接收服务质量请求消息, 所述服务质量请求 消息由发送方在接收到终端的数据请求消息时发送;
第二处理器,用于依据所述服务质量请求消息,查询当前的网络状态, 所述当前的网络状态用于获取数据请求处理指令, 所述数据请求处理指令 为所述发送方处理所述终端的数据请求的依据;
第二存储器, 用于存储所述第二处理器中的程序及运行过程中产生的 数据。
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