WO2018103512A1 - 一种服务网络速率控制策略变化的通知方法、装置及系统 - Google Patents

一种服务网络速率控制策略变化的通知方法、装置及系统 Download PDF

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WO2018103512A1
WO2018103512A1 PCT/CN2017/111070 CN2017111070W WO2018103512A1 WO 2018103512 A1 WO2018103512 A1 WO 2018103512A1 CN 2017111070 W CN2017111070 W CN 2017111070W WO 2018103512 A1 WO2018103512 A1 WO 2018103512A1
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rate control
terminal
network rate
service network
management entity
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English (en)
French (fr)
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卜翘楚
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information

Definitions

  • the present disclosure relates to the field of packet domain evolution domain in a mobile communication system, and in particular, to a notification method, device, system and computer storage medium for a service network rate control (Serving PLMN rate control) policy change.
  • a service network rate control Serving PLMN rate control
  • the MME can use its own The processing capability sets the maximum rate value of the uplink and the downlink to limit the maximum number of packets that the IOT UE interacts with the application server during the periodic period to protect the MME signaling load.
  • the processing method of the Serving PLMN rate control function is defined in the 3rd Generation Partnership Project (3GPP) 23.401 protocol.
  • the MME passes the Create Session Request message through the Serving Gateway (SGW) according to the local configuration policy.
  • the PDN gateway (PGW) when the PGW receives the downlink data, limits the transmission of the packet according to the downlink rate threshold (ie, the downlink rate limit); and the uplink rate limit is activated by the Evolved Packet System (Evolved Packet System,
  • the EPS default message is sent to the IOT UE.
  • the subsequent UE sends an uplink data packet according to the uplink rate threshold (ie, the uplink rate limit).
  • the specific process is shown in Figure 1 and Figure 2.
  • FIG. 1 is a flowchart of a Serving PLMN rate control sent by an MME when a UE is attached according to a protocol provided by the prior art. As shown in FIG. 1 , the steps include:
  • Step 101 The UE initiates a Control Plane (CP) mode attachment, and sends an attach request to the MME.
  • CP Control Plane
  • Step 102 The MME starts the Serving PLMN rate control function, and sends a Create Session Request message to the SGW, where the message carries a downlink Serving PLMN rate control threshold (ie, a downlink limiting rate);
  • a downlink Serving PLMN rate control threshold ie, a downlink limiting rate
  • Step 103 The SGW returns a successful create session response message.
  • Step 104 The MME sends an attach accept and activate default EPS bearer context request (ie, activate a default bearer request) message to the UE, where the message carries an uplink Serving PLMN rate control threshold (ie, an uplink limit rate);
  • an uplink Serving PLMN rate control threshold ie, an uplink limit rate
  • Step 105 The UE returns an Attach Complete and Activate Default EPS Bearer Context Response Accept (ie Activate Default Bearer Accept) message to the MME.
  • FIG. 2 is a flowchart of a Serving PLMN rate control sent by a MME when a UE initiates a PDN connection according to a protocol provided by the prior art. As shown in FIG. 2, the steps include:
  • Step 201 After the UE accesses the MME according to the processing procedure of FIG. 1, the UE initiates a PDN connection request to the MME.
  • Step 202 The MME sends a create session request message to the SGW, where the message carries a downlink Serving PLMN rate control threshold (ie, a downlink limit rate).
  • a downlink Serving PLMN rate control threshold ie, a downlink limit rate
  • Step 203 The SGW returns a successful create session response message to the MME.
  • Step 204 The MME sends an Activate Default EPS Bearer Context Request message (ie, activates a default bearer request) to the UE, where the message carries an uplink Serving PLMN rate control threshold (ie, an uplink limit rate);
  • an uplink Serving PLMN rate control threshold ie, an uplink limit rate
  • Step 205 The UE returns an activation default EPS bearer context response accept (ie, activate default bearer acceptance) message to the MME.
  • activation default EPS bearer context response accept ie, activate default bearer acceptance
  • the 3GPP 29.274 protocol definition may notify the PGW by a Modify Bearer Request message for the change of the downlink restriction rate.
  • the protocol does not explicitly define whether to notify the UE and how to notify the UE. Therefore, under the current protocol definition, the MME can only notify the UE of the rate threshold (ie, the uplink rate limit) through the attach or PDN connection procedure.
  • the IoT UE in the NB-IoT network has the characteristics of low mobility, and once it is connected to the network, it will not be attached again for a long time.
  • the Serving PLMN rate control policy of the MME changes, the terminal cannot be notified of the change of the uplink rate limit, and the rate control effect is not achieved. Therefore, it is necessary to increase the mechanism for notifying the UE when the policy changes, so as to achieve the effect of the policy change.
  • a method, device, and system for notifying a UE of a service network rate control policy change according to an embodiment of the present invention, and solving the problem that the UE cannot notify the UE when the Serving PLMN rate control policy changes.
  • the mobility management entity determines whether the terminal attached thereto supports the service network rate control
  • the mobility management entity determines the terminal support service network rate control attached thereto, generating a modified evolved packet system EPS bearer context request or an evolved packet system session management ESM data forwarding message including the changed service network rate control parameter;
  • the mobile management entity determining whether the terminal attached thereto supports the service network rate control includes:
  • the mobility management entity determines that the terminal supports the serving network rate control according to the service network rate control capability indication sent by the terminal during the initiation of the attach.
  • the mobile management entity judges when the service network rate control policy changes Before the terminal attached to the terminal supports the service network rate control, the method further includes:
  • the mobility management entity determines that the terminal has the service network rate control capability according to the service network rate control capability indication of the terminal during the terminal initiated connection or the terminal initiates the packet data network PDN connection, and The terminal sends an active default EPS bearer context request carrying a service network rate control parameter.
  • generating a modified EPS bearer context request or an ESM data forwarding message including the changed serving network rate control parameter includes :
  • the mobility management entity scans a terminal attached thereto;
  • the service network rate control including the change is generated. Modifying the EPS bearer context request for the parameter;
  • the mobile management entity receives the downlink data of the terminal, and the terminal is not scanned, determining that the unscanned terminal supports the service network rate control, and the changed service network rate control parameter is When the previously used service network rate control parameters are inconsistent, an ESM data forwarding message containing the changed service network rate control parameter is generated.
  • the method before the determining that the scanned terminal supports the service network rate control, the method further includes:
  • the mobility management entity determines whether the terminal is in a connected state
  • the method further comprises:
  • the mobility management entity determines that the terminal supports the serving network rate control, and the changed serving network rate control parameter and the previously used serving network rate control When the parameters are inconsistent, a modified EPS bearer context request or an ESM data forwarding message containing the changed service network rate control parameter is generated.
  • the serving network rate control parameter includes an uplink limiting rate.
  • a storage medium stores a program for implementing a notification method for changing a service network rate control policy described above.
  • a notification device for changing a network rate control policy according to an embodiment of the present invention, where the device is configured on a mobility management entity, including:
  • a capability judging module configured to determine, when the serving network rate control policy changes, whether the terminal attached to the mobility management entity supports the serving network rate control
  • a processing module configured to: when determining terminal support service network rate control attached thereto, generate a modified evolved packet system EPS bearer context request or an evolved packet system session management ESM data forwarding message that includes the changed service network rate control parameter;
  • a communication module configured to send, to the terminal, the modified EPS bearer context request or the ESM data forwarding message that includes the changed service network rate control parameter.
  • the capability judging module determines that the terminal supports the serving network rate control according to the serving network rate control capability indication sent by the terminal during the initiation of the attach.
  • the processing module is further configured to determine, according to the serving network rate control capability indication of the terminal, during the terminal initiated attachment or the terminal initiates a packet data network PDN connection, that the terminal has Serving a network rate control capability and transmitting, via the communication module, an active default EPS bearer context request carrying a serving network rate control parameter to the terminal.
  • a terminal configured to send a service network rate control capability indication to the mobility management entity during the initiation of the attaching to the mobility management entity;
  • a mobility management entity configured to: when the service network rate control policy changes, determine, according to the service network rate control capability indication, the terminal support service network rate control attached thereto, generate a service network rate control including the change
  • the modified evolved packet system EPS bearer context request or the evolved packet system session management ESM data forward message is sent to the terminal for the terminal to adjust the uplink limit rate according to the serving network rate control parameter in the received message.
  • the serving network rate control capability indication is sent by the terminal to the mobility management entity during an initiation of an attach to the mobility management entity.
  • the mobility management entity is further configured to determine, according to a serving network rate control capability indication of the terminal, the terminal during a connection initiated by the terminal or a terminal initiates a packet data network PDN connection. Having a serving network rate control capability and transmitting to the terminal an active default EPS bearer context request carrying a serving network rate control parameter.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores one or more programs executable by a computer, and when the one or more programs are executed by the computer, the computer is executed as described above.
  • the UE when the Serving PLMN rate control policy changes on the MME, for example, the static configuration change or the MME dynamic load capacity change, the UE can be notified in time to update the uplink rate threshold (ie, the uplink rate limit) to achieve the effect of the policy change. .
  • the uplink rate threshold ie, the uplink rate limit
  • FIG. 1 is a flowchart of a Serving PLMN rate control sent by an MME when a UE is attached according to a protocol provided by the prior art
  • FIG. 2 is a flowchart of a Serving PLMN rate control sent by an MME when a UE initiates a PDN connection according to a protocol provided by the prior art;
  • FIG. 3 is a flowchart of a notification method for a change of a Serving PLMN rate control policy according to an embodiment of the present invention
  • FIG. 4 is a block diagram of a notification device for changing a Serving PLMN rate control policy according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a Serving PLMN rate control sent by an MME when a UE is attached according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a Serving PLMN rate control sent by an MME when a UE initiates a PDN connection according to an embodiment of the present invention
  • FIG. 7 is a flowchart of the MME modifying the EPS bearer context request message to notify the UE of the uplink rate threshold when the Serving PLMN rate control policy on the MME is changed according to the embodiment of the present invention
  • FIG. 8 is a flowchart of the MME receiving the user downlink data and forwarding the user data to the UE through the ESM data forwarding message according to the protocol description provided by the embodiment of the present invention
  • FIG. 9 is a flowchart of informing the terminal of an uplink rate threshold by using an ESM data forwarding message when the UE has not been scanned, when the Serving PLMN rate control policy of the MME is changed according to the embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for notifying a change of a Serving PLMN rate control policy according to an embodiment of the present invention. As shown in FIG. 3, the steps include:
  • Step S100 When the service network rate control policy changes, the mobility management entity determines whether the terminal attached thereto supports the service network rate control.
  • the mobility management entity determines that the terminal supports the service network rate control according to the service network rate control capability indication sent by the terminal during the initiation of the attach. Specifically, before performing the step S101, the terminal, when initiating the attach request to the mobility management entity, carries the service network rate control capability indication of the terminal in the attach request, so that the mobility management entity determines, according to the indication, the terminal Service network rate control capability.
  • the method further includes: the mobility management entity determines, according to the service network rate control capability indication of the terminal, that the terminal has the service network rate control capability, and provides the terminal with the serving network rate control capability during the terminal initiates the attach or initiates the PDN connection. And sending an active default EPS bearer context request carrying the service network rate control parameter, so that the terminal sends the uplink data according to the service network rate control parameter carried in the active default EPS bearer context request until the service network rate control policy changes.
  • Step S200 If the mobility management entity determines the terminal support service network rate control attached thereto, generate a modified evolved packet system EPS bearer context request or an evolved packet system session management ESM data including the changed service network rate control parameter. Forward the message.
  • the service network rate control parameter includes an uplink rate limit.
  • Step S300 The mobility management entity sends the modified EPS bearer context request or the ESM data forwarding message carrying the changed serving network rate control parameter to the terminal.
  • the terminal accessing the NB-IoT network in this embodiment, when the Serving PLMN rate control policy changes, for example, the static configuration change or the MME dynamic load capability changes, the terminal can be notified in time.
  • the Serving PLMN rate control policy changes for example, the static configuration change or the MME dynamic load capability changes
  • step S100 to step S300 are included.
  • the storage medium may be a ROM/RAM, a magnetic disk, an optical disk, or the like.
  • FIG. 4 is a block diagram of a notification device for changing a Serving PLMN rate control policy according to an embodiment of the present invention. As shown in FIG. 4, the device is configured on a mobility management entity, and includes:
  • the capability judging module 10 is configured to determine whether the terminal attached to the mobility management entity supports the serving network rate control when the serving network rate control policy changes. The capability judging module 10 determines that the terminal supports the service network rate control according to the service network rate control capability indication sent by the terminal during the initiation of the attach.
  • the processing module 20 is configured to: after determining that the terminal attached to the service network rate control attached thereto, generate a modified evolved packet system EPS bearer context request or an evolved packet system session management ESM data forwarding message that includes the changed serving network rate control parameter .
  • the serving network rate control parameter includes an uplink limiting rate.
  • the communication module 30 is configured to send the modified EPS bearer context request or the ESM data forwarding message that includes the changed serving network rate control parameter to the terminal.
  • the processing module is further configured to determine, according to the serving network rate control capability indication of the terminal, during the terminal initiated attachment or the terminal initiates a packet data network PDN connection, that the terminal has The network rate control capability is serviced and an active default EPS bearer context request carrying the service network rate control parameter is generated and sent to the terminal via the communication module 30.
  • the MME can notify the terminal of the uplink rate threshold in time.
  • the embodiment of the invention further provides a notification system for changing a service network rate control policy, including:
  • a terminal configured to send a Serving PLMN rate control capability indication to the mobility management entity during the initiation of the attaching to the mobility management entity;
  • a mobility management entity configured to determine, according to the service network rate control capability indication of the terminal, whether the terminal has a service network rate control capability during the terminal initiated connection or the terminal initiates a packet data network PDN connection, and The terminal sends an activation default EPS bearer context request carrying a service network rate control parameter; when the Serving PLMN rate control policy changes, if the Serving PLMN rate control capability indication is used, it is determined that the terminal attached thereto supports the Serving PLMN rate control And generating a modified EPS bearer context request or an ESM data forwarding message including the changed Serving PLMN rate control parameter, and sending the message to the terminal, so that the terminal adjusts the uplink limiting rate according to the Serving PLMN rate control parameter in the received message.
  • the MME When the LTE-IoT network is connected to the NB-IoT network, the MME notifies the terminal of the uplink rate threshold.
  • the first step the terminal starts to initiate the CP mode access, accesses the network element MME in the NB-IoT network, and carries the UE.
  • the network capability indicates that the terminal supports or has the Serving PLMN rate control capability.
  • the terminal adds a Serving PLMN rate control capability indication to the UE network capability parameter.
  • Step 2 The MME determines that the terminal supports or has the Serving PLMN rate control function, and the MME enables the Serving PLMN rate control function, and the MME carries the Serving PLMN rate control parameter to the terminal in the Activate Default EPS Bearer Context Request message. If the MME determines that the terminal does not support the Serving PLMN rate control function (that is, the terminal does not have the Serving PLMN rate control capability), the MME does not deliver the Serving PLMN rate control parameter to the terminal.
  • the Serving PLMN rate control parameter includes an uplink limiting rate.
  • Step 3 After the terminal accesses the NB-IoT network, it initiates a PDN connection request.
  • Step 4 The MME determines that the terminal carries the UE network capability when the attached access indicates that the terminal supports or has the Serving PLMN rate control capability, and the MME carries the Serving PLMN rate control parameter to the terminal in the Activate Default EPS Bearer Context Request message. If the MME determines that the terminal does not support the Serving PLMN rate control function (that is, the terminal does not have the Serving PLMN rate control capability), the MME does not deliver the Serving PLMN rate control parameter to the terminal.
  • the MME delivers the Serving PLMN rate control parameter according to the Serving PLMN rate control capability of the terminal.
  • the MME can notify the terminal. Specifically, in this embodiment, a Serving PLMN rate control parameter is added in the Modify EPS Bearer Context Request and the EPS Session Management DATA TRANSPORT message to notify the terminal of a new rate threshold, so as to enable The terminal updates the rate threshold.
  • the MME sends a modified EPS bearer context request or an ESM data forwarding message to the user (ie, the terminal) supporting the Serving PLMN rate control in the Connected state.
  • a modification message ie, modifying the EPS bearer context request or the ESM data forwarding message
  • the first step is to initiate the CP mode access when the terminal is powered on, and access the network element MME in the NB-IoT network.
  • Step 3 If the user has not been scanned, the MME receives the downlink data of the user, and the MME determines that the user supports the Serving PLMN rate control capability, and the current static configuration threshold or the threshold generated by the MME according to the dynamic factor. If the value is inconsistent with the previous one, the MME carries the Serving PLMN rate control parameter in the downlink ESM data forwarding message to notify the terminal to update the rate threshold.
  • Step 4 When the Idle state user changes to the Connected state, the MME determines whether the user supports the Serving PLMN rate control capability. If the user supports the Serving PLMN rate control capability, and the current static configuration threshold or the MME generates a threshold according to the dynamic factor. If the value is inconsistent with the previously sent, the MME sends a modify EPS bearer context request message or an ESM data forward message to notify the terminal to update the rate threshold.
  • the current protocol does not define the capability of the terminal to support the Serving PLMN rate control function. Therefore, the MME sends an uplink rate threshold to all terminals connected to the network, regardless of whether the terminal supports the function.
  • the solution optimizes the method for the MME to notify the uplink rate threshold when the IoT terminal accesses the network, in the UE.
  • the serving PLMN rate control capability indicator is added to the UE network capability parameter.
  • the MME delivers the uplink rate threshold only to the terminal that supports the Serving PLMN rate control function.
  • the policy changes such as the static configuration change or the MME dynamic load capability. Change, only the modification notification is sent to the terminal that supports the Serving PLMN rate control function.
  • the MME starts the Serving PLMN rate control, and the MME also sends the Modifying EPS bearer context request message or the ESM data forwarding message, and carries the Serving PLMN rate control parameter to notify the terminal of the uplink threshold.
  • the MME closes the Serving PLMN rate control, if the terminal is notified of the uplink rate threshold, the MME sends a modify EPS bearer context request message or the ESM data forwarding message carries the Serving PLMN rate control value as FFFF, notifying the terminal that the uplink rate is not limited.
  • FIG. 5 is a flowchart of a Serving PLMN rate control sent by an MME when a UE is attached according to an embodiment of the present invention.
  • the processing procedure of the MME to deliver the Serving PLMN rate control according to the UE capability indication includes:
  • Step 301 The UE starts to initiate the CP mode attach, and sends an attach request to the MME, where the request carries the UE network capability to indicate that the UE supports the Serving PLMN rate control.
  • Step 302 The MME starts the Serving PLMN rate control function, and sends a Create Session Request message to the SGW, where the message carries the downlink Serving PLMN rate control threshold.
  • Step 303 The SGW returns a successful create session response message.
  • Step 304 The MME determines that the UE supports the Serving PLMN rate control, and sends an attach accept and activate a default EPS bearer context request (ie, activates a default bearer request) message to the UE, where the message carries an uplink Serving PLMN rate control threshold.
  • a default EPS bearer context request ie, activates a default bearer request
  • the Serving PLMN rate control parameter is not carried in the message of the Attach Accept and Activate Default EPS Bearer Context Request (ie, Activate Default Bearer Request) sent by the MME to the UE.
  • Step 305 The terminal returns the attachment completion to the MME and activates the default EPS bearer context response acceptance (ie, activation). The default bearer accepts) the message.
  • FIG. 6 is a flowchart of a Serving PLMN rate control sent by an MME when a UE initiates a PDN connection according to an embodiment of the present invention.
  • the MME sends a Serving PLMN rate control according to the terminal capability indication.
  • Step 401 After the UE accesses the MME according to the processing procedure of FIG. 3, the UE initiates a PDN connection request to the MME.
  • Step 402 The MME sends a Create Session Request message to the SGW, where the message carries a downlink Serving PLMN rate control threshold (ie, a downlink restriction rate).
  • a downlink Serving PLMN rate control threshold ie, a downlink restriction rate
  • Step 403 The SGW returns a successful create session response message to the MME.
  • Step 404 The MME determines that the terminal supports the Serving PLMN rate control, and sends an Activate Default EPS Bearer Context Request (ie, Activate Default Bearer Request) message to the UE to carry the uplink Serving PLMN rate control threshold to the terminal.
  • an Activate Default EPS Bearer Context Request ie, Activate Default Bearer Request
  • the Serving PLMN rate control parameter is not carried in the Activate Default EPS Bearer Context Request (ie, Activate Default Bearer Request) message sent by the MME to the UE.
  • Step 405 The UE returns an Activate Default EPS Bearer Context Response Accept (ie, Activate Default Bearer Accept) message to the MME.
  • Activate Default EPS Bearer Context Response Accept ie, Activate Default Bearer Accept
  • FIG. 7 is a flowchart of the MME setting the uplink rate threshold by modifying the EPS Bearer Context Request message when the Serving PLMN rate control policy on the MME is changed according to the embodiment of the present invention, where the Serving PLMN is used.
  • the rate control policy change includes a static configuration change or an MME dynamic load capability change, as shown in FIG. 7, the steps include:
  • Step 501 When the MME changes the locally statically configured Serving PLMN rate control policy or the rate threshold dynamically generated by the MME according to the load condition, the MME scans the Connected state user (ie, the terminal), if the user supports the Serving PLMN. Rate control, and the uplink Serving PLMN rate control value (ie, the uplink rate threshold used by the UE before the change) and the current value (ie, the changed uplink rate threshold) are inconsistent in the user context, and the modified EPS bearer context is sent to the UE. A request message carrying the current uplink Serving PLMN rate control value (ie, the changed uplink rate limit).
  • the Connected state user ie, the terminal
  • the uplink Serving PLMN rate control value ie, the uplink rate threshold used by the UE before the change
  • the current value ie, the changed uplink rate threshold
  • Step 502 After receiving the modify EPS bearer context request message, the UE sends a modified EPS bearer context accept message to the MME.
  • FIG. 8 is a flowchart of forwarding user data to a UE by using an ESM data transport (ESM Data Transport) message when the MME receives the downlink data of the user according to the protocol provided by the embodiment of the present invention. As shown in FIG. 8 , the steps include:
  • Step 601 After the UE accesses the MME, the UE receives the downlink data packet from the SGW in the connected state.
  • Step 602 The MME sends an ESM data forwarding message to the UE, and forwards the downlink data packet of the user to the terminal.
  • FIG. 9 is a diagram showing an example of a change of a Serving PLMN rate control policy on an MME according to an embodiment of the present invention. If the static configuration changes or the MME dynamic load capacity changes, when the UE has not been scanned by the MME, the MME receives the downlink data packet of the UE, and notifies the terminal of the uplink rate threshold by the ESM data forwarding message, as shown in the figure. As shown in 9, the steps include:
  • Step 701 When the MME modifies the static configuration policy or the rate threshold dynamically generated by the MME according to the load condition changes, if the user has not been scanned, the MME receives the downlink data packet of the user, that is, the MME receives Downstream data packet to the unscanned UE.
  • Step 702 If the MME determines that the user supports the Serving PLMN rate control, and the uplink Serving PLMN rate control value in the user context (that is, the uplink rate threshold used by the UE before the change) and the current value (that is, the changed uplink rate threshold) If the MME is inconsistent, the MME sends an ESM data forwarding message to the UE, where the message carries the uplink Serving PLMN rate control value (that is, the changed uplink rate threshold).
  • the ESM data forwarding message sent by the MME to the UE does not carry the Serving PLMN rate control parameter (ie, the changed value). Upstream rate threshold).
  • the embodiment of the present invention can notify the UE to update the uplink rate threshold, and enable the UE to send the uplink data packet according to the updated uplink rate threshold.
  • the technical solution provided by the embodiment of the present invention can be applied to the field of the packet domain evolution domain in the mobile communication system.
  • the technical solution provided by the embodiment of the present invention can notify the UE to update the uplink rate threshold (ie, the uplink rate limit) in time when the Serving PLMN rate control policy of the MME changes, for example, the static configuration change or the MME dynamic load capability changes. The effect of strategic changes.

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Abstract

本公开涉及一种服务网络速率控制策略变化的通知方法、装置、系统及其计算机存储介质，涉及移动通讯系统中分组域演进域领域，所述方法包括：当服务网络速率控制策略变化时，移动管理实体判断附着在其上的终端是否支持服务网络速率控制；若所述移动管理实体判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息；所述移动管理实体将所述包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息携带发送至所述终端。本公开实施例提供的技术方案在MME上服务网络速率控制策略发生变化时，能够及时通知UE更新上行速率门限值。

Description

一种服务网络速率控制策略变化的通知方法、装置及系统 技术领域
本公开涉及移动通讯系统中分组域演进域领域，特别涉及一种服务网络速率控制(Serving Public Land Mobile Network rate control，Serving PLMN rate control)策略变化的通知方法、装置、系统及其计算机存储介质。
背景技术
窄带-物联网(Narrowband-Internet of Things，NB-IoT)中，为了保护移动管理实体(Mobility Management Entity，MME)不受物联终端(User Equipment，UE)的信令冲击，MME可以根据自身的处理能力，设置上下行最大速率值，以限制物联UE在周期时间内与应用服务器交互的最大报文数，达到保护MME信令负荷的作用。
第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)23.401协议中定义了Serving PLMN rate control功能的处理方式。当物联UE发起附着或分组数据网(Packet Data Network，PDN)连接时，MME根据本地配置策略，经由服务网关(Serving Gateway，SGW)将下行限制速率通过创建会话请求(Create Session Request)消息带给PDN网关(PDN Gateway，PGW)，当PGW收到下行数据时，根据下行的速率门限值(即下行限制速率)限制报文的发送；上行限制速率通过激活演进分组系统(Evolved Packet System，EPS)默认承载上下文请求(Activate Default EPS Bearer Context Request)消息带给物联UE，后续UE根据上行的速率门限值(即上行限制速率)发送上行数据报文。具体流程如图1和图2所示。
图1现有技术提供的协议描述的UE附着时MME下发Serving PLMN rate control的流程图，如图1所示，步骤包括：
步骤101：UE开机发起控制平面(Control Plane，CP)模式附着，向MME发送附着请求；
步骤102：MME开启Serving PLMN rate control功能，向SGW发送创建会话请求消息，该消息携带下行Serving PLMN rate control门限值(即下行限制速率)；
步骤103：SGW返回成功的创建会话响应消息；
步骤104：MME向UE发送附着接受和激活默认EPS承载上下文请求(即激活默认承载请求)消息，该消息携带上行Serving PLMN rate control门限值(即上行限制速率)；
步骤105：UE向MME返回附着完成和激活默认EPS承载上下文响应接受(即激活默认承载接受)消息。
图2现有技术提供的协议描述的UE发起PDN连接时MME下发Serving PLMN rate control的流程图，如图2所示，步骤包括：
步骤201：UE按照图1的处理流程接入到MME后，向MME发起PDN连接请求；
步骤202：MME向SGW发送创建会话请求消息，该消息携带下行Serving PLMN rate control门限值(即下行限制速率)；
步骤203：SGW向MME返回成功的创建会话响应消息；
步骤204：MME向UE发送激活默认EPS承载上下文请求消息(即激活默认承载请求)，该消息携带上行Serving PLMN rate control门限值(即上行限制速率)；
步骤205：UE向MME返回激活默认EPS承载上下文响应接受(即激活默认承载接受)消息。
如果MME本地配置的速率门限值发生变化，对于下行限制速率的变化，3GPP 29.274协议定义可以通过修改承载请求(Modify Bearer Request)消息通知PGW。但是，对于上行限制速率的变化，协议没有明确定义是否要通知UE以及如何通知UE。因此，在目前协议定义下，MME只能通过附着或PDN连接流程通知UE上行的速率门限值(即上行限制速率)。
NB-IoT网络中的物联UE具有低移动性的特性，一旦接入到网络中，在很长时间内不会再次附着。当MME的Serving PLMN rate control策略发生改变时，对于上行限制速率的变化，无法通知终端，达不到速率控制效果，因此有必要增加策略改变时通知UE的机制，以达到策略改变的效果。
发明内容
根据本发明实施例提供的一种服务网络速率控制策略变化的通知方法、装置及系统，解决MME的Serving PLMN rate control策略发生变化时无法通知UE的问题。
根据本发明实施例提供的一种服务网络速率控制策略变化的通知方法，包括：
当服务网络速率控制策略变化时，移动管理实体判断附着在其上的终端是否支持服务网络速率控制；
若所述移动管理实体判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息；
所述移动管理实体将所述包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息携带发送至所述终端。
根据一个示例性实施例，所述的移动管理实体判断附着在其上的终端是否支持服务网络速率控制包括：
所述移动管理实体根据所述终端在发起附着期间发送的服务网络速率控制能力指示，判断所述终端支持服务网络速率控制。
根据一个示例性实施例，在所述的当服务网络速率控制策略变化时，移动管理实体判 断附着在其上的终端是否支持服务网络速率控制之前，所述方法还包括：
所述移动管理实体在所述终端发起附着期间或所述终端发起分组数据网PDN连接期间，根据所述终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并向所述终端发送携带服务网络速率控制参数的激活默认EPS承载上下文请求。
根据一个示例性实施例，所述的若移动管理实体判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息包括：
所述移动管理实体扫描附着在其上的终端；
若扫描到终端，则在判断所扫描到的终端支持服务网络速率控制，且变化后的服务网络速率控制参数与在前使用的服务网络速率控制参数不一致时，生成包含变化后的服务网络速率控制参数的修改EPS承载上下文请求；
若所述移动管理实体收到终端的下行数据，且所述终端未被扫描到，则在判断所述未被扫描到的终端支持服务网络速率控制，且变化后的服务网络速率控制参数与在前使用的服务网络速率控制参数不一致时，生成包含变化后的服务网络速率控制参数的ESM数据转发消息。
根据一个示例性实施例，在所述判断所述扫描到的终端支持服务网络速率控制之前，所述方法进一步包括：
所述移动管理实体判断所述终端是否处于连接态；
若判断所述终端处于连接态，则对所述扫描到的终端是否支持服务网络速率控制进行判断。
根据一个示例性实施例，所述方法进一步包括：
若所述扫描到的终端从空闲态转变为连接态，则所述移动管理实体在判断所述终端支持服务网络速率控制，且变化后的服务网络速率控制参数与在前使用的服务网络速率控制参数不一致时，生成包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息。
根据一个示例性实施例，所述服务网络速率控制参数包括上行限制速率。
根据本发明实施例提供的存储介质，其存储用于实现上述服务网络速率控制策略变化的通知方法的程序。
根据本发明实施例提供的一种服务网络速率控制策略变化的通知装置，所述装置设置在移动管理实体上，包括：
能力判断模块，用于当服务网络速率控制策略变化时，判断附着在移动管理实体上的终端是否支持服务网络速率控制；
处理模块，用于在判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息；
通讯模块，用于将所述包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息携带发送至所述终端。
根据一个示例性实施例，所述能力判断模块根据所述终端在发起附着期间发送的服务网络速率控制能力指示，判断所述终端支持服务网络速率控制。
根据一个示例性实施例，所述处理模块还用于在所述终端发起附着期间或所述终端发起分组数据网PDN连接期间，根据所述终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并经由所述通讯模块向所述终端发送携带服务网络速率控制参数的激活默认EPS承载上下文请求。
根据本发明实施例提供的一种服务网络速率控制策略变化的通知系统，包括：
终端，用于在向移动管理实体发起附着期间，将其服务网络速率控制能力指示发送给移动管理实体；
移动管理实体，用于在当服务网络速率控制策略变化时，若根据所述服务网络速率控制能力指示，判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息，并发送至所述终端，以供终端根据收到的消息中的服务网络速率控制参数调整上行限制速率。
根据一个示例性实施例，所述服务网络速率控制能力指示是所述终端在向所述移动管理实体发起附着期间发送给所述移动管理实体的。
根据一个示例性实施例，所述移动管理实体还用于在所述终端发起附着期间或所述终端发起分组数据网PDN连接期间，根据所述终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并向所述终端发送携带服务网络速率控制参数的激活默认EPS承载上下文请求。
本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行的一个或多个程序，所述一个或多个程序被所述计算机执行时使所述计算机执行如上述任意一种服务网络速率控制策略变化的通知方法。
本发明实施例提供的技术方案具有如下有益效果：
本发明实施例在MME上Serving PLMN rate control策略发生变化时，例如静态配置改变或MME动态负荷能力改变，能够及时通知UE更新上行速率门限值(即上行限制速率)，以达到策略变化的效果。
附图说明
图1现有技术提供的协议描述的UE附着时MME下发Serving PLMN rate control的流程图；
图2现有技术提供的协议描述的UE发起PDN连接时MME下发Serving PLMN rate control的流程图；
图3是本发明实施例提供的Serving PLMN rate control策略变化的通知方法流程图；
图4是本发明实施例提供的Serving PLMN rate control策略变化的通知装置框图；
图5本发明实施例提供的UE附着时MME下发Serving PLMN rate control流程图；
图6是本发明实施例提供的UE发起PDN连接时MME下发Serving PLMN rate control流程图；
图7是本发明实施例提供的MME上Serving PLMN rate control策略发生变化时，MME通过修改EPS承载上下文请求消息通知UE上行速率门限值的流程图；
图8是本发明实施例提供的协议描述的MME收到用户下行数据，通过ESM数据转发消息向UE转发用户数据的流程图；
图9是本发明实施例提供的MME上Serving PLMN rate control策略发生变化时，在UE还未被扫描到时，收到下行数据，通过ESM数据转发消息通知终端上行速率门限值的流程图。
具体实施方式
以下结合附图对本发明的优选实施例进行详细说明，应当理解，以下所说明的优选实施例仅用于说明和解释本发明，并不用于限定本发明。
图3是本发明实施例提供的Serving PLMN rate control策略变化的通知方法流程图，如图3所示，步骤包括：
步骤S100：当服务网络速率控制策略变化时，移动管理实体判断附着在其上的终端是否支持服务网络速率控制。
移动管理实体根据所述终端在发起附着期间发送的服务网络速率控制能力指示，判断所述终端支持服务网络速率控制。具体地说，在执行步骤S101之前，终端在向移动管理实体发起附着请求时，在该附着请求中携带该终端的服务网络速率控制能力指示，以供移动管理实体依据该指示，判断该终端的服务网络速率控制能力。
在执行步骤S101之前，进一步包括：移动管理实体在该终端发起附着或发起PDN连接期间，根据该终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并向所述终端发送携带服务网络速率控制参数的激活默认EPS承载上下文请求，以供该终端按照激活默认EPS承载上下文请求中携带的服务网络速率控制参数进行上行数据的发送，直至服务网络速率控制策略变化。
步骤S200：若所述移动管理实体判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息。
服务网络速率控制参数包括上行限制速率。
步骤S300：移动管理实体将所述包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息携带发送至所述终端。
本实施例的终端接入NB-IoT网络后，当Serving PLMN rate control策略发生改变时，例如静态配置改变或MME动态负荷能力改变，能够及时通知终端。
本领域普通技术人员可以理解，实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，所述的程序可以存储于计算机可读取存储介质中，该程序在执行时，包括步骤S100至步骤S300。其中，所述的存储介质可以为ROM/RAM、磁碟、光盘等。
图4是本发明实施例提供的Serving PLMN rate control策略变化的通知装置框图，如图4所示，所述装置设置在移动管理实体上，包括：
能力判断模块10，用于当服务网络速率控制策略变化时，判断附着在移动管理实体上的终端是否支持服务网络速率控制。所述能力判断模块10根据所述终端在发起附着期间发送的服务网络速率控制能力指示，判断所述终端支持服务网络速率控制。
处理模块20，用于在判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息。所述服务网络速率控制参数包括上行限制速率。
通讯模块30，用于将所述包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息携带发送至所述终端。
根据一个示例性实施例，所述处理模块还用于在所述终端发起附着期间或所述终端发起分组数据网PDN连接期间，根据所述终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并生成携带服务网络速率控制参数的激活默认EPS承载上下文请求，经由通讯模块30发送至所述终端。
本实施例的终端接入NB-IoT网络时，MME能够及时通知终端上行速率门限值。
本发明实施例还提供一种服务网络速率控制策略变化的通知系统，包括：
终端，用于在向移动管理实体发起附着期间，将其Serving PLMN rate control能力指示发送给移动管理实体；
移动管理实体，用于在所述终端发起附着期间或所述终端发起分组数据网PDN连接期间，根据所述终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并向所述终端发送携带服务网络速率控制参数的激活默认EPS承载上下文请求；当Serving PLMN rate control策略变化时，若根据所述Serving PLMN rate control能力指示，判断附着在其上的终端支持Serving PLMN rate control，则生成包含变化后的Serving PLMN rate control参数的修改EPS承载上下文请求或ESM数据转发消息，并发送至所述终端，以供终端根据收到的消息中的Serving PLMN rate control参数调整上行限制速率。
所述系统的工作过程如下：
1.本发明实施例的物联终端(以下简称终端或UE)接入NB-IoT网络时，MME通知终端上行速率门限值的步骤包括：
第一步：终端开机发起CP模式接入，接入到NB-IoT网络中的网元MME，携带UE  network capability指示该终端支持或具有Serving PLMN rate control能力。
终端在UE network capability参数中新增Serving PLMN rate control能力指示。
第二步：MME判断终端支持或具有Serving PLMN rate control功能，并且MME开启了Serving PLMN rate control功能，则MME在激活默认EPS承载上下文请求消息中携带Serving PLMN rate control参数给终端。如果MME判断终端不支持Serving PLMN rate control功能(即终端不具有Serving PLMN rate control能力)，则MME不下发Serving PLMN rate control参数给终端。
所述Serving PLMN rate control参数包括上行限制速率。
第三步：终端在接入到NB-IoT网络后，发起PDN连接请求。
第四步：MME判断终端在附着接入时携带UE network capability指示该终端支持或具有Serving PLMN rate control能力，则MME在激活默认EPS承载上下文请求消息中携带Serving PLMN rate control参数给终端。如果MME判断终端不支持Serving PLMN rate control功能(即终端不具有Serving PLMN rate control能力)，则MME不下发Serving PLMN rate control参数给终端。
通过第二步和第四步可知，MME根据终端的Serving PLMN rate control能力下发Serving PLMN rate control参数。
2.当MME上Serving PLMN rate control策略发生改变时(例如静态配置改变或MME动态负荷能力改变)，MME能够通知终端。具体地说，本实施例在修改EPS承载上下文请求(Modify EPS Bearer Context Request)和ESM数据转发(EPS Session Management DATA TRANSPORT)消息中新增Serving PLMN rate control参数，通知终端新的速率门限，以便使终端更新速率门限。为了减少MME上Serving PLMN rate control策略改变时通知终端的信令处理，MME仅对连接(Connected)态的支持Serving PLMN rate control的用户(即终端)发送修改EPS承载上下文请求或ESM数据转发消息，通知终端修改速率门限；对于空闲态(Idle)的支持Serving PLMN rate control用户，在状态变为Connected后，再向该用户发送修改消息(即修改EPS承载上下文请求或ESM数据转发消息)，通知该终端新的速率门限。具体步骤包括：
第一步：在终端开机发起CP模式接入，接入到NB-IoT网络中的网元MME。
第二步：MME上Serving PLMN rate control处理发生改变，MME开始扫描用户。如果用户处于Idle态，则跳过暂不通知更新速率。如果用户处于Connected态，并且当前和网络侧没有下行数据交互，则MME进一步判断用户是否支持Serving PLMN rate control能力。如果用户支持Serving PLMN rate control能力，且当前静态配置门限值或MME根据动态因子生成的门限值和之前发送的不一致，则MME发送修改EPS承载上下文请求消息，该消息携带Serving PLMN rate control参数，以通知终端更新速率门限。
第三步：如果用户还未被扫描到，MME收到用户的下行数据，MME判断用户支持Serving PLMN rate control能力，且当前静态配置门限值或MME根据动态因子生成的门限 值和之前发送的不一致，则MME在下行ESM数据转发消息中携带Serving PLMN rate control参数，以通知终端更新速率门限。
第四步：当Idle态用户变为Connected态时，MME判断用户是否支持Serving PLMN rate control能力，如果用户支持Serving PLMN rate control能力，且当前静态配置门限值或MME根据动态因子生成的门限值和之前发送的不一致，则MME发送修改EPS承载上下文请求消息或ESM数据转发消息通知终端更新速率门限。
目前协议未定义终端支持Serving PLMN rate control功能的能力，因此MME会对所有接入到网络中的终端下发上行速率门限，不管终端是否支持该功能。本实施例为了减少当MME的Serving PLMN rate control策略改变时通知终端的数量，避免下发无意义的修改消息，本方案优化了物联终端接入网络时MME通知上行速率门限的方法，在UE网络能力(UE network capability)参数中新增Serving PLMN rate control能力指示，MME只对支持Serving PLMN rate control功能的终端下发上行速率门限；在策略发生改变时，例如静态配置改变或MME动态负荷能力改变，只对支持Serving PLMN rate control功能的终端下发修改通知。
需要说明的是，如果终端接入到MME后，MME才开启Serving PLMN rate control，MME也通过发送修改EPS承载上下文请求消息或ESM数据转发消息，携带Serving PLMN rate control参数，通知终端上行门限值。当MME关闭Serving PLMN rate control时，如果之前通知了终端上行速率门限，则MME发送修改EPS承载上下文请求消息或ESM数据转发消息携带Serving PLMN rate control值为FFFF，通知终端上行速率不受限制。
下面结合附图5至附图9对技术方案的实施作进一步描述。
图5本发明实施例提供的UE附着时MME下发Serving PLMN rate control流程图，如图5所示，UE附着时，MME根据UE能力指示下发Serving PLMN rate control的处理步骤包括：
步骤301：UE开机发起CP模式附着，向MME发送附着请求，该请求携带UE network capability指示该UE支持Serving PLMN rate control。
步骤302：MME开启Serving PLMN rate control功能，向SGW发送创建会话请求消息，该消息携带下行Serving PLMN rate control门限值。
步骤303：SGW返回成功的创建会话响应消息。
步骤304：MME判断该UE支持Serving PLMN rate control，向该UE发送附着接受和激活默认EPS承载上下文请求(即激活默认承载请求)消息，该消息携带上行Serving PLMN rate control门限值。
需要说明的是，如果该UE不支持Serving PLMN rate control，则MME向该UE发送的附着接受和激活默认EPS承载上下文请求(即激活默认承载请求)消息中不携带Serving PLMN rate control参数。
步骤305：终端向MME返回附着完成和激活默认EPS承载上下文响应接受(即激活 默认承载接受)消息。
图6是本发明实施例提供的UE发起PDN连接时MME下发Serving PLMN rate control流程图，如图6所示，UE发起PDN连接时，MME根据终端能力指示下发Serving PLMN rate control的处理步骤包括：
步骤401：UE按照图3的处理流程接入到MME后，向MME发起PDN连接请求。
步骤402：MME向SGW发送创建会话请求消息，该消息携带下行Serving PLMN rate control门限值(即下行限制速率)。
步骤403：SGW向MME返回成功的创建会话响应消息。
步骤404：MME判断终端支持Serving PLMN rate control，向该UE发送激活默认EPS承载上下文请求(即激活默认承载请求)消息携带上行Serving PLMN rate control门限值给终端。
需要说明的是，如果UE不支持Serving PLMN rate control，则MME向该UE发送的激活默认EPS承载上下文请求(即激活默认承载请求)消息中不携带Serving PLMN rate control参数。
步骤405：UE向MME返回激活默认EPS承载上下文响应接受(即激活默认承载接受)消息。
图7是本发明实施例提供的MME上Serving PLMN rate control策略发生变化时，MME通过修改EPS承载上下文请求(Modify EPS Bearer Context Request)消息通知UE上行速率门限值的流程图，其中，Serving PLMN rate control策略变化包括静态配置改变或MME动态负荷能力改变，如图7所示，步骤包括：
步骤501：MME通过修改本地静态配置的Serving PLMN rate control策略或MME根据负荷情况动态生成的速率门限值发生改变时，MME扫描连接态(Connected)态用户(即终端)，如果用户支持Serving PLMN rate control，并且用户上下文中上行Serving PLMN rate control值(即变化前UE使用的上行速率门限值)和当前值(即变化后的上行速率门限值)不一致，则向UE发送修改EPS承载上下文请求消息，该消息携带当前上行Serving PLMN rate control值(即变化后的上行限制速率)。
需要说明的是，如果用户不支持Serving PLMN rate control或上下文中上行Serving PLMN rate control值和当前值一致，则不发送修改EPS承载上下文请求消息。
步骤502：UE收到修改EPS承载上下文请求消息后，向MME发送修改EPS承载上下文接受消息。
图8是本发明实施例提供的协议描述的MME收到用户下行数据时，通过ESM数据转发(ESM Data Transport)消息向UE转发用户数据的流程图，如图8所示，步骤包括：
步骤601：UE接入到MME后，在连接态从SGW收到下行数据报文。
步骤602：MME向UE发送ESM数据转发消息，将用户的下行数据报文转发给终端。
图9是本发明实施例提供的MME上Serving PLMN rate control策略发生变化时，例 如静态配置改变或MME动态负荷能力改变，在UE还未被MME扫描到时，MME收到该UE的下行数据报文，通过ESM数据转发消息通知终端上行速率门限值的流程图，如图9所示，步骤包括：
步骤701：MME修改静态配置策略或MME根据负荷情况动态生成的速率门限值发生改变时，若用户还未被扫描到，此时MME收到用户的下行数据报文，也就是说，MME收到未扫描到的UE的下行数据报文。
步骤702：若MME判断用户支持Serving PLMN rate control，且用户上下文中上行Serving PLMN rate control值(即变化前UE使用的上行速率门限值)和当前值(即变化后的上行速率门限值)不一致，则MME向UE发送ESM数据转发消息，该消息携带上行Serving PLMN rate control值(即变化后的上行速率门限值)。
需要说明的是，如果UE不支持Serving PLMN rate control或上下文中上行Serving PLMN rate control值和当前值一致，则MME向该UE发送的ESM数据转发消息不携带Serving PLMN rate control参数(即变化后的上行速率门限值)。
综上所述，本发明的实施例具有以下技术效果：
本发明实施例在Serving PLMN rate control策略发生变化时，能够及时通知UE更新上行速率门限值，使UE按照更新的上行速率门限值发送上行数据报文。
尽管上文对本发明进行了详细说明，但是本发明不限于此，本技术领域技术人员可以根据本发明的原理进行各种修改。因此，凡按照本发明原理所作的修改，都应当理解为落入本发明的保护范围。
工业实用性
本发明实施例提供的技术方案可以应用于移动通讯系统中分组域演进域领域。本发明实施例提供的技术方案在MME上Serving PLMN rate control策略发生变化时，例如静态配置改变或MME动态负荷能力改变，能够及时通知UE更新上行速率门限值(即上行限制速率)，以达到策略变化的效果。

Claims (14)

  1. 一种服务网络速率控制策略变化的通知方法，包括：
    当服务网络速率控制策略变化时，移动管理实体判断附着在其上的终端是否支持服务网络速率控制；
    若所述移动管理实体判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息；
    所述移动管理实体将所述包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息携带发送至所述终端。
  2. 根据权利要求1所述的方法，其中，所述的移动管理实体判断附着在其上的终端是否支持服务网络速率控制包括：
    所述移动管理实体根据所述终端在发起附着期间发送的服务网络速率控制能力指示，判断所述终端支持服务网络速率控制。
  3. 根据权利要求2所述的方法，其中，在所述的当服务网络速率控制策略变化时，移动管理实体判断附着在其上的终端是否支持服务网络速率控制之前，所述方法还包括：
    所述移动管理实体在所述终端发起附着期间或所述终端发起分组数据网PDN连接期间，根据所述终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并向所述终端发送携带服务网络速率控制参数的激活默认EPS承载上下文请求。
  4. 根据权利要求1所述的方法，其中，所述的若移动管理实体判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息包括：
    所述移动管理实体扫描附着在其上的终端；
    若扫描到终端，则在判断所扫描到的终端支持服务网络速率控制，且变化后的服务网络速率控制参数与在前使用的服务网络速率控制参数不一致时，生成包含变化后的服务网络速率控制参数的修改EPS承载上下文请求；
    若所述移动管理实体收到终端的下行数据，且所述终端未被扫描到，则在判断所述未被扫描到的终端支持服务网络速率控制，且变化后的服务网络速率控制参数与在前使用的服务网络速率控制参数不一致时，生成包含变化后的服务网络速率控制参数的ESM数据转发消息。
  5. 根据权利要求4所述的方法，其中，在所述判断所述扫描到的终端支持服务网络速率控制之前，所述方法进一步包括：
    所述移动管理实体判断所述终端是否处于连接态；
    若判断所述终端处于连接态，则对所述扫描到的终端是否支持服务网络速率控 制进行判断。
  6. 根据权利要求5所述的方法，进一步包括：
    若所述扫描到的终端从空闲态转变为连接态，则所述移动管理实体在判断所述终端支持服务网络速率控制，且变化后的服务网络速率控制参数与在前使用的服务网络速率控制参数不一致时，生成包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息。
  7. 根据权利要求1-6任意一项所述的方法，所述服务网络速率控制参数包括上行限制速率。
  8. 一种服务网络速率控制策略变化的通知装置，所述装置设置在移动管理实体上，所述装置包括：
    能力判断模块，设置为当服务网络速率控制策略变化时，判断附着在移动管理实体上的终端是否支持服务网络速率控制；
    处理模块，设置为在判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息；
    通讯模块，设置为将所述包含变化后的服务网络速率控制参数的修改EPS承载上下文请求或ESM数据转发消息携带发送至所述终端。
  9. 根据权利要求8所述的装置，其中，所述能力判断模块根据所述终端在发起附着期间发送的服务网络速率控制能力指示，判断所述终端支持服务网络速率控制。
  10. 根据权利要求9所述的装置，其中，所述处理模块还设置为在所述终端发起附着期间或所述终端发起分组数据网PDN连接期间，根据所述终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并经由所述通讯模块向所述终端发送携带服务网络速率控制参数的激活默认EPS承载上下文请求。
  11. 一种服务网络速率控制策略变化的通知系统，包括：
    终端，用于在向移动管理实体发起附着期间，将其服务网络速率控制能力指示发送给移动管理实体；
    移动管理实体，用于在当服务网络速率控制策略变化时，若根据所述服务网络速率控制能力指示，判断附着在其上的终端支持服务网络速率控制，则生成包含变化后的服务网络速率控制参数的修改演进分组系统EPS承载上下文请求或演进分组系统会话管理ESM数据转发消息，并发送至所述终端，以供终端根据收到的消息中的服务网络速率控制参数调整上行限制速率。
  12. 根据权利要求11所述的服务网络速率控制策略变化的通知系统，其中，所述服务网络速率控制能力指示是所述终端在向所述移动管理实体发起附着期间发送给所述移动管理实体的。
  13. 根据权利要求12所述的服务网络速率控制策略变化的通知系统，其中，所 述移动管理实体还用于在所述终端发起附着期间或所述终端发起分组数据网PDN连接期间，根据所述终端的服务网络速率控制能力指示，判断所述终端具有服务网络速率控制能力，并向所述终端发送携带服务网络速率控制参数的激活默认EPS承载上下文请求。
  14. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行的一个或多个程序，所述一个或多个程序被所述计算机执行时使所述计算机执行如根据权利要求1-7中任一项所述的服务网络速率控制策略变化的通知方法。
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