WO2020001208A1 - 一种速率调整方法及其装置、系统 - Google Patents

一种速率调整方法及其装置、系统 Download PDF

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Publication number
WO2020001208A1
WO2020001208A1 PCT/CN2019/088233 CN2019088233W WO2020001208A1 WO 2020001208 A1 WO2020001208 A1 WO 2020001208A1 CN 2019088233 W CN2019088233 W CN 2019088233W WO 2020001208 A1 WO2020001208 A1 WO 2020001208A1
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Prior art keywords
information
network element
session
ambr
access
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PCT/CN2019/088233
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English (en)
French (fr)
Inventor
朱强华
朱奋勤
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19825867.5A priority Critical patent/EP3817452B1/en
Publication of WO2020001208A1 publication Critical patent/WO2020001208A1/zh
Priority to US17/107,520 priority patent/US11570832B2/en

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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
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/14—Backbone network devices

Definitions

  • the embodiments of the present application relate to the field of communications technologies, and in particular, to a rate adjustment method, a device, and a system thereof.
  • Terminals such as user equipment (UE) supporting dual connectivity (DC) technology means that terminal equipment can access two base stations at the same time.
  • One of these two base stations is called the main base station or the first base station.
  • One base station and the other base station are called secondary base stations or second base stations.
  • a terminal device can simultaneously access two base stations, one of which is a 5G base station (gNB), and the other is an evolved base station (evolved NodeB, eNodeB or eNB), the DC in 5GS can be called multi-radio access technology dual connectivity (MR-DC).
  • gNB 5G base station
  • eNodeB evolved NodeB
  • eNodeB evolved NodeB
  • the UE uses a new radio (NR) to access gNB for data transmission
  • the theoretical maximum rate can reach 4T bits per second (bps);
  • the UE only uses evolutionary general Terrestrial wireless access network (evolved universal terrestrial wireless access network, E-UTRAN), the theoretical value of the highest rate can only reach 10Gbps.
  • E-UTRAN evolved universal terrestrial wireless access network
  • the technical problem to be solved in the embodiments of the present application is to provide a communication method and a device thereof, which solve the problem that the data transmission rate cannot be adjusted in the prior art, and can adaptively adjust the data transmission rate, thereby avoiding data. Packet loss can also ensure data transmission efficiency.
  • a first aspect of the embodiments of the present application provides a rate adjustment method, including:
  • the mobility management network element determines whether the terminal uses access information for NR access
  • the mobility management network element determines the first access point name-aggregate maximum bit rate (APN-AMBR) information according to the access information.
  • APN-AMBR first access point name-aggregate maximum bit rate
  • the first aspect of this application is applied in a 5GS MR-DC scenario.
  • the mobile management network element determines the first APN according to whether the terminal uses NR access. -AMBR information.
  • the mobile management network element may notify the first APN-AMBR information to the user plane network element, so that the user plane network element adjusts the data transmission rate of the terminal on the user plane network element according to the first APN-AMBR information, thereby realizing An APN-AMBR information adaptively adjusts the data transmission rate of the terminal on the user plane network element, thereby avoiding data loss and ensuring data transmission efficiency.
  • the access information is used to indicate whether the terminal uses NR to access gNB. If the terminal uses NR access, the terminal can use the NR system for data transmission; if the terminal does not use NR access, the terminal cannot use the NR system for data transmission. .
  • the APN-AMBR information may include the values of the parameter APN-AMBR and the value of the parameter APN-AMBR for controlling the data transmission rate.
  • APN-AMBR is used to limit the aggregate maximum bit rate (aggregate maximum bit rate) carried by all non-guaranteed bit rate (non-GBR) bearers on an access point name (APN).
  • APN-AMBR rate control can be performed on the terminal, that is, the terminal can adjust the data transmission rate according to the value of the APN-AMBR parameter, for example, the maximum value of the data transmission rate on the control terminal does not exceed the APN-AMBR parameter
  • the rate control can also be performed on the packet data network element, that is, the packet data network element can adjust the data transmission rate according to the value of the APN-AMBR parameter.
  • the mobility management network element may determine whether the terminal uses access information for NR access according to the first indication information sent by the primary network node, that is, the mobility management network element receives the first information from the primary network node.
  • the first message carries first indication information, and the first indication information is used to indicate whether the terminal uses NR access, so that the mobility management network element determines whether the terminal uses NR access access information according to the first instruction information, so that The mobility management network element determines the first APN-AMBR information according to the access information.
  • the first indication information may be indicated by a radio access technology (radio access technology, RAT) type.
  • RAT radio access technology
  • the master network node may detect whether the terminal uses NR access when receiving the detection request sent by the mobile management network element, and notify the mobile management network element of the result through the first instruction information, so that the mobile management network element can know the terminal Whether to use NR access.
  • the main network node may detect whether the terminal uses NR access if the detection event subscribed by the mobile management network element succeeds, and notify the mobile management network element of the result through the first instruction information, so that the mobile management network element can learn the terminal Whether to use NR access.
  • the main network node may also actively detect whether the terminal uses NR access, and inform the mobile management network element of the result through the first instruction information, so that the mobile management network element can know whether the terminal uses NR access.
  • the main network node is one of two network nodes that are dual-connected by the terminal.
  • the main network node is mainly used to allocate resources and provide data transmission for the two network nodes in a 5GSMR-DC scenario.
  • the other dual-connected network node can be called a secondary network node.
  • This secondary network node is mainly used to provide data transmission for the terminal in the 5GSMR-DC scenario.
  • the primary network node may also be referred to as a first network node, and the secondary network node may be referred to as a second network node.
  • the mobility management network element may determine whether the terminal uses access information for NR access according to the second indication information, the location of the terminal, the third indication information, and the first configuration information.
  • the second indication information and the location of the terminal are sent by the master network node to the mobile management network element.
  • the second indication information is used to indicate the dual connectivity capability of the master network node.
  • the location of the terminal may be a tracking area to which the terminal belongs.
  • the third instruction information is sent by the terminal to the mobile management network element, and the third instruction information is used to indicate whether the terminal has dual connection capability, that is, whether the terminal can connect to two network nodes at the same time.
  • the mobile management network element has dual connectivity capabilities and the terminal has dual connectivity capabilities
  • the terminal if the terminal enters a tracking area that supports dual connectivity from a tracking area that does not support dual connectivity, the tracking area to which the terminal belongs at this time Supports dual connectivity.
  • the mobile management network element can determine the access information of the terminal using NR access. If the terminal enters from a tracking area that supports dual connectivity to a tracking area that does not support dual connectivity, the tracking area to which the terminal belongs belongs at this time. Supports dual connectivity.
  • the mobile management network element can determine the access information of the terminal that does not use NR access.
  • the mobility management network element may determine the first APN-AMBR information according to the access information and the second configuration information.
  • the second configuration information includes using the NR to access the corresponding APN-AMBR information or not using it.
  • APN-AMBR information corresponding to NR access For example, the access information is that the terminal uses NR access.
  • the mobility management network element may select the APN-AMBR information corresponding to the NR access from the second configuration information and use it as the first. APN-AMBR information.
  • not using NR access may be that the terminal uses E-UTRAN to transmit data and does not use NR to access network nodes.
  • Using NR access can be a terminal using NR to transmit data.
  • the first message further includes second APN-AMBR information.
  • the second APN-AMBR information is the APN-AMBR information recommended by the master network node.
  • the master network node may The use case determines the recommended APN-AMBR information.
  • the mobility management network element may determine the first APN-AMBR information according to the access information and the second APN-AMBR information, that is, determine the first APN-AMBR information by combining the access information and the second APN-AMBR information.
  • the first APN-AMBR information may be sent to the terminal, and the first APN-AMBR information is used by the terminal according to the first APN -AMBR information controls the data transmission rate, that is, the terminal adjusts the data transmission rate on the terminal according to the first APN-AMBR information to prevent the data transmission rate on the terminal from exceeding the value of the first APN-AMBR parameter, or to increase the Data transmission rate to ensure data transmission efficiency.
  • the mobile management network element may calculate and determine the first UE-AMBR information according to the first APN-AMBR information, and the first UE-AMBR information Sending to the main network node, so that the main network node can control the data transmission rate of the terminal according to the first UE-AMBR information.
  • the UE-AMBR information may include values of UE-AMBR parameters and UE-AMBR parameters, and is used to control the data transmission rate.
  • UE-AMBR is used to limit the aggregate maximum bit rate of all non-GBR bearers of the terminal.
  • the UE-AMBR rate control can be performed on the main network node, that is, the main network node controls the data transmission rate based on the value of the UE-AMBR information parameter. Make adjustments, for example, the maximum value of the data transmission rate of the control terminal on the primary network node does not exceed the value of the UE-AMBR parameter.
  • the mobility management network element sends a first bearer management request to the serving network element, where the first bearer management request includes access information; and when the serving network element receives the first bearer management request, Send a second bearer management request to the packet data network element, where the second bearer management request includes access information; when the packet data network element receives the second bearer management request, determine the third APN-AMBR information according to the access information And controlling the data transmission rate of the packet data network element according to the third APN-AMBR information; the packet data network element sends a second bearer management response to the serving network element, and the second bearer management response is used to respond to the second bearer management request, The second bearer management response includes the third APN-AMBR information; when the serving network element receives the second bearer management response, the first bearer management response is sent to the mobile management network element, and the first bearer management response includes the third APN. -AMBR information.
  • the mobile management network element When the mobile management network element receives the third APN-AMBR information, it can send the third APN-AMBR information to the terminal.
  • the third APN-AMBR information is used by the terminal to perform data transmission rate based on the third APN-AMBR information.
  • Control that is, the terminal adjusts the data transmission rate on the terminal according to the third APN-AMBR information to prevent the data transmission rate on the terminal from exceeding the value of the third APN-AMBR parameter, or to increase the data transmission rate on the terminal to ensure data Transmission efficiency.
  • the mobile management network element When the mobile management network element receives the third APN-AMBR information, it can calculate and determine the third UE-AMBR information according to the third APN-AMBR information, and send the third UE-AMBR information to the master network node, so that the master The network node may control the data transmission rate of the terminal according to the third UE-AMBR information.
  • the first bearer management request and the second bearer management request further include second APN-AMBR information
  • the second APN-AMBR information is the APN-AMBR information recommended by the main network node
  • the second The APN-AMBR information and the access information are used for packet data network elements to determine the third APN-AMBR information.
  • the first bearer management request and the second bearer management request further include first APN-AMBR information.
  • the packet data network element may be based on the access information.
  • the packet data network element determines the third APN-AMBR information according to the access information and the second APN-AMBR information.
  • the mobility management network element sends a first bearer management request to the serving network element, where the first bearer management request includes access information; and when the serving network element receives the first bearer management request, Send a second bearer management request to the packet data network element, where the second bearer management request includes access information; and when the packet data network element receives the second bearer management request, trigger an Internet protocol connection to the access network (Internet protocol- connectivity, access network (IP-CAN) session modification or establishment process, sending an IP-CAN session management request to a policy rule network element, the IP-CAN session management request includes access information; the policy rule network element according to the access The information determines the third APN-AMBR information, and sends an IP-CAN session management response to the packet data network element.
  • IP-CAN Internet protocol- connectivity, access network
  • the IP-CAN session management response includes the third APN-AMBR information; the packet data network element receives the third APN-AMBR. Information, send a second bearer management response to the serving network element, and control the data transmission rate on the packet data network element based on the third APN-AMBR information
  • the second bearer management response is used to respond to the second bearer management request, and the second bearer management response includes the third APN-AMBR information; when the serving network element receives the second bearer management response, it sends the first A bearer management response.
  • the first bearer management response includes third APN-AMBR information.
  • the mobile management network element When the mobile management network element receives the third APN-AMBR information, it can send the third APN-AMBR information to the terminal.
  • the third APN-AMBR information is used by the terminal to perform data transmission rate based on the third APN-AMBR information.
  • Control that is, the terminal adjusts the data transmission rate on the terminal according to the third APN-AMBR information to prevent the data transmission rate on the terminal from exceeding the value of the third APN-AMBR parameter, or to increase the data transmission rate on the terminal to ensure data Transmission efficiency.
  • the mobile management network element When the mobile management network element receives the third APN-AMBR information, it can calculate and determine the third UE-AMBR information according to the third APN-AMBR information, and send the third UE-AMBR information to the master network node, so that the master The network node may control the data transmission rate of the terminal according to the third UE-AMBR information.
  • the bearer management request may be a bearer establishment request or a bearer modification request. Depending on the specific situation, the bearer management response is the same.
  • the first bearer management request is a first bearer establishment request
  • the second bearer management request is a second bearer establishment request
  • the second bearer management response is a second bearer establishment response
  • the first bearer management response is a first bearer establishment response.
  • the first bearer management request, the second bearer management request, and the IP-CAN session management request further include second APN-AMBR information, and the second APN-AMBR information is recommended by the main network node.
  • the APN-AMBR information, the second APN-AMBR information, and the access information are used for a policy rule.
  • the network element determines the third APN-AMBR information according to the second APN-AMBR information and the access information.
  • the first bearer management request, the second bearer management request, and the IP-CAN session management request further include first APN-AMBR information
  • the policy rule network element includes the first APN-AMBR information.
  • the policy rule network element determines the third APN-AMBR based on the access information and the second APN-AMBR information. information.
  • the mobility management network element determines the fourth indication information according to the quality of service class identifier (QCI) of the bearer, and sends the fourth indication information to the main network node, and the fourth indication information It is used to indicate whether the primary network node allocates resources of the primary network node for the bearer, or whether to allocate resources of the secondary network node for the bearer, so that the primary network node determines whether to allocate the resources of the primary network node or the resources of the secondary network node for the bearer.
  • QCI quality of service class identifier
  • the first bearer management response and the second bearer management response further include fourth instruction information.
  • the mobile management network element receives the fourth instruction information, it sends the first Four indication information
  • the fourth indication information is used to indicate whether the primary network node allocates resources of the primary network node for the bearer, or whether to allocate resources of the secondary network node for the bearer, so that the primary network node determines whether Resources or resources of secondary network nodes.
  • the fourth indication information may be determined by the packet data network element according to the bearer QCI, or may be obtained by the packet data network element from the policy rule network element, and the policy rule network element may determine the fourth indication information according to the bearer QCI.
  • the second aspect of the embodiments of the present application provides a mobility management network element, and the mobility management network element has a function of implementing the method provided in the first aspect.
  • the functions can be realized by hardware, and the corresponding software can also be implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the mobility management network element includes: a first processing unit and a second processing unit; a first processing unit configured to determine whether the terminal uses access information for NR access; a second processing unit, Configured to determine the first APN-AMBR information according to the access information.
  • the mobile management network element includes a processor, a transceiver, and a memory, where the transceiver is used to receive and send information, the computer stores instructions for execution in the memory, and the processor communicates with the memory and the transceiver through the bus.
  • the processor executes computer execution instructions stored in the memory, so that the mobility management network element performs the following operations: determining whether the terminal uses access information for NR access; and determining the first APN-AMBR information according to the access information.
  • the implementation of the mobile management network element can refer to the implementation of the method and repeat The details are not repeated here.
  • a third aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute the method described in the first aspect above.
  • a fourth aspect of the embodiments of the present application provides a computer program product containing instructions, which when executed on a computer, causes the computer to execute the method described in the first aspect above.
  • a fifth aspect of the embodiments of the present application provides a rate adjustment method, including:
  • the session management network element determines whether the terminal uses access information for NR access
  • the session management network element determines the first session-aggregated maximum bit rate session-AMBR information according to the access information.
  • the fifth aspect of the present application is applied in a 5GS MR-DC scenario.
  • the session management network element determines the first session according to whether the terminal uses NR access. -AMBR information
  • the session management network element may notify the first session-AMBR information to the terminal and / or the user plane network element, so that the terminal and / or the user plane network element can adjust the data transmission rate according to the first session-AMBR information, Therefore, the data transmission rate is adaptively adjusted according to the first session-AMBR information, thereby avoiding data loss and ensuring data transmission efficiency.
  • the session-AMBR information may include values of the session-AMBR parameter and the session-AMBR parameter, and is used to control the data transmission rate.
  • session-AMBR is used to limit the maximum aggregate bit rate of all non-GBR quality of service (QoS) flows of a terminal on a session.
  • QoS quality of service
  • the rate control of session-AMBR can be performed on the terminal, that is, the terminal can
  • the value of the AMBR parameter adjusts the data transmission rate, for example, the maximum value of the data transmission rate on the control terminal does not exceed the value of the session-AMBR parameter; the rate control can also be performed on the user plane network element, that is, the user plane network element can The data transmission rate is adjusted according to the value of the session-AMBR parameter.
  • the session management network element may determine whether the terminal uses access information for NR access according to the first indication information sent by the access management network element, that is, the session management network element receives the information from the access management network.
  • the first message includes the first indication information, and the first indication information is used to indicate whether the terminal uses NR access, so as to determine whether the terminal uses NR access access information according to the first instruction information, so as to facilitate mobile management.
  • the network element determines the first session-AMBR information according to the access information.
  • the first indication information may be indicated by a RAT type.
  • the access management network element may receive the first indication information from the main network node, and send the first indication information to the session management network element through the first message, so that the session management network element obtains the first indication information.
  • the access management network element may determine whether the terminal uses the first indication information of the NR access according to the second indication information, the location of the terminal, the third indication information, and the first configuration information.
  • the second indication information and the location of the terminal are sent by the master network node to the access management network element.
  • the second indication information is used to indicate the dual connection capability of the master network node.
  • the location of the terminal may be a tracking area to which the terminal belongs.
  • the third indication information is sent by the terminal to the access management network element, and the third indication information is used to indicate whether the terminal has dual connection capability, that is, whether the terminal can connect to two network nodes at the same time.
  • the access management network element has the dual connectivity capability of the main network node and the terminal has dual connectivity capability
  • the terminal enters the tracking area that supports dual connectivity from the tracking area that does not support dual connectivity
  • the tracking of the terminal ’s location at this time
  • the area supports dual connectivity.
  • the access management network element can determine the first indication information of the terminal using NR access. If the terminal enters from the tracking area that supports dual connectivity to the tracking area that does not support dual connectivity, the location of the terminal at this time The tracking area does not support dual connectivity, and the access management network element can determine the first indication information that the terminal does not use NR access.
  • the access management network element determines whether the terminal uses the first indication information for NR access, the first indication information is sent to the session management network element through a first message, so that the session management network element learns the first indication information.
  • the session management network element may determine the first session-AMBR information according to the access information and the second configuration information.
  • the second configuration information includes using the NR to access the corresponding session-AMBR information or not using it.
  • NR access corresponding session-AMBR information.
  • the first message further includes second session-AMBR information
  • the second session-AMBR information is the session-AMBR information recommended by the master network node.
  • the master network node may use the actual usage of the master network node.
  • the situation determines the recommended session-AMBR information.
  • the session management network element may determine the first session-AMBR information according to the access information and the second session-AMBR information, that is, determine the first session-AMBR information by combining the access information and the second session-AMBR information.
  • the session management network element determines the first session-AMBR information
  • the first session-AMBR information may be sent to the user plane network element, and the first session-AMBR information is used for the user plane.
  • the network element controls the data transmission rate according to the first session-AMBR information, that is, the user plane network element adjusts the terminal's data transmission rate on the user plane network element according to the first session-AMBR information to avoid the terminal from being in the user plane network element.
  • the data transmission rate on the network exceeds the value of the first session-AMBR parameter, or the data transmission rate of the terminal on the user plane network element is increased to ensure data transmission efficiency.
  • the session management network element may send the first session-AMBR information to the terminal through the access management network element, that is, the session management network element sends the first session-AMBR information to the terminal.
  • the incoming management network element sends the first session-AMBR information
  • the access management network element sends the first session-AMBR information to the terminal
  • the terminal updates the session-AMBR information on the terminal according to the first session-AMBR information.
  • the session management network element may not send the currently determined first session-AMBR information to the terminal, and the terminal may not adjust the data transmission rate.
  • the session management network element may also send the first session-AMBR information to the main network node through the access management network element, that is, the session management network element sends the first session-AMBR information to the access management network element, and the access management network element sends the first session-AMBR information to the access management network element.
  • the primary network node sends the first session-AMBR information, the primary network node updates the session-AMBR information on the first session-AMBR information, and calculates and determines the first UE-AMBR information according to the first session-AMBR information, so that The master network node may control the data transmission rate according to the first UE-AMBR information.
  • the UE-AMBR information may include values of UE-AMBR parameters and UE-AMBR parameters, and is used to control the data transmission rate.
  • UE-AMBR is used to limit the aggregate maximum bit rate of all non-GBRQoS flows of the terminal.
  • the UE-AMBR rate control can be performed on the main network node, that is, the main network node transmits its data according to the parameter values of the UE-AMBR information. The rate is adjusted, for example, the maximum value of the data transmission rate of the control terminal on the main network node does not exceed the value of the UE-AMBR parameter.
  • the session management network element sends a policy update request to the policy management network element, and the policy update request includes access information; the policy management network element determines the third session-AMBR information according to the access information, and sends the third session-AMBR information to the session. The management network element sends a policy update response, and the policy update response includes the third session-AMBR information.
  • the policy update request may further include the first session-AMBR information, and the policy management network element determines the third session-AMBR information according to the access information based on the first session-AMBR information, that is, the basis of the policy management network element in the first session-AMBR information.
  • the first session-AMBR information is adjusted according to the access information, so as to obtain the third session-AMBR information.
  • the session management network element When the session management network element receives the third session-AMBR information, it sends the third session-AMBR information to the user-plane network element, and the third session-AMBR information is used for the user-plane network element to pair according to the third session-AMBR information.
  • the data transmission rate is controlled.
  • the session management network element may send the third session-AMBR information to the terminal through the access management network element, that is, the session management network element sends the third session to the access management network element.
  • the access management network element sends the third session-AMBR information to the terminal, and the terminal updates the session-AMBR information on the terminal according to the third session-AMBR information.
  • the session management network element When the session management network element receives the third session-AMBR information, it can also send the third session-AMBR information to the main network node through the access management network element, that is, the session management network element sends the access management network element.
  • the third session-AMBR information The access management network element sends the third session-AMBR information to the master network node.
  • the master network node updates the session-AMBR information on the master network node according to the third session-AMBR information.
  • the AMBR information calculation determines the third UE-AMBR information, so that the master network node can control the data transmission rate according to the third UE-AMBR information.
  • the policy update request further includes second session-AMBR information
  • the second session-AMBR information is the session-AMBR information recommended by the master network node, and the master network node may use the actual use of the master network node.
  • the situation determines the recommended session-AMBR information.
  • the second session-AMBR information and the access information are used by the policy management network element to determine the third session-AMBR information, that is, the policy management network element can determine the third session-AMBR information by combining the access information and the second session-AMBR information.
  • the policy update request further includes first session-AMBR information, so that the policy management network element determines the third session-AMBR information based on the access information based on the first session-AMBR information. Or determining the third session-AMBR information according to the access information and the second session-AMBR information.
  • the session management network element determines the fourth indication information according to the 5G QoS indicator (5QI), and the session management network element may also send the fourth management network element to the main network node through the access management network element.
  • Indication information, and the fourth indication information is used to indicate whether the primary network node allocates resources of the primary network node for the quality of service flow of the session, or whether to allocate resources of the secondary network node for the quality of service flow of the session, that is, the allocation of the quality of service flow of the session
  • the resources of the primary network node are also the resources of the secondary network node, so that the primary network node determines whether to allocate the resources of the primary network node or the resources of the secondary network node for the quality of service flow of the session.
  • the policy update response further includes fourth indication information, where the fourth indication information is determined by the policy management network element according to the 5QI.
  • the session management network element may also send the fourth management information to the main network node through the access management network element.
  • the fourth indication information is used to indicate whether the main network node allocates resources of the main network node for the quality of service flow of the session, or whether it is a session.
  • the quality of service flow allocates the resources of the secondary network node, that is, allocates the resources of the primary network node or the resources of the secondary network node for the session's quality of service flow, so that the primary network node determines whether to allocate the resources of the primary network node or the secondary for the quality of service flow of the session. Resources for network nodes.
  • a sixth aspect of the embodiments of the present application provides a session management network element, and the session management network element has a function of implementing the method provided in the fifth aspect.
  • the functions can be realized by hardware, and the corresponding software can also be implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the session management network element includes: a first processing unit and a second processing unit; a first processing unit configured to determine whether the terminal uses access information for NR access; a second processing unit, It is used to determine the first session-AMBR information according to the access information.
  • the session management network element includes: a processor, a transceiver, and a memory, where the transceiver is used to receive and send information, the computer executes instructions stored in the memory, and the processor communicates with the memory and the transceiver through the bus.
  • the processor executes computer execution instructions stored in the memory, so that the session management network element performs the following operations: determining whether the terminal uses access information for NR access; and determining first session-AMBR information according to the access information.
  • the implementation of the session management network element can refer to the implementation of the method, and repeat The details are not repeated here.
  • a seventh aspect of the embodiments of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute the method described in the fifth aspect.
  • An eighth aspect of the embodiments of the present application provides a computer program product containing instructions, which when executed on a computer, causes the computer to execute the method described in the fifth aspect.
  • a ninth aspect of the embodiments of the present application provides a rate adjustment method, including:
  • the mobility management network element determines whether the terminal uses access information for NR access
  • the mobile management network element generates first APN-AMBR information and second APN-AMBR information according to the access information.
  • the first APN-AMBR information is APN-AMBR information corresponding to using NR access, and the second APN-AMBR is not using NR. Access the corresponding APN-AMBR information.
  • the ninth aspect of this application is applied in a 5GS MR-DC scenario.
  • the mobile management network element In the case where the terminal suddenly uses NR access or suddenly does not use NR access, the mobile management network element generates a first APN- AMBR information and second APN-AMBR information, so that the terminal and the main network node can select an AMBR information to use according to whether the terminal uses NR access, so that the packet data network element determines which AMBR to use according to the instruction of the mobile management network element.
  • the mobile management network element when the mobility management network element generates the first APN-AMBR information and the second APN-AMBR information, the mobile management network element calculates a first based on the first APN-AMBR information and the second APN-AMBR information.
  • the first UE-AMBR information is UE-AMBR information corresponding to using NR access
  • the second UE-AMBR information is UE-AMBR information corresponding to not using NR access
  • mobile The management network element sends the first UE-AMBR information and the second UE-AMBR information to the primary network node, so that the primary network node selects from the first UE-AMBR information and the second UE-AMBR information according to whether the terminal uses NR access.
  • One UE-AMBR information, and the data transmission rate is controlled according to the selected UE-AMBR information.
  • the mobility management network element sends a first bearer establishment request to the serving network element, where the first bearer request includes first APN-AMBR information, second APN-AMBR information, and access information; the serving network element Send a second bearer establishment request to the packet data network element.
  • the second bearer establishment request includes the first APN-AMBR information, the second APN-AMBR information, and the access information; the packet data network element sends the first APN-AMBR to the access information.
  • the packet data network sends a second bearer establishment response to the serving network element, and the second bearer establishment response includes the third APN- AMBR information and fourth APN-AMBR information;
  • the serving network element sends a first bearer establishment response to the mobile management network element, and the first bearer establishment response includes the third APN-AMBR information and the fourth APN-AMBR information;
  • the third APN-AMBR information and the fourth APN-AMBR information are calculated to obtain the third UE-AMBR information and the fourth UE-AMBR information.
  • the third UE-AMBR information is the UE-AMBR information corresponding to the NR access, and the fourth UE -AMBR information is not using NR access Corresponding UE-AMBR information; the mobile management network element sends the third UE-AMBR information and the fourth UE-AMBR information to the primary network node, so that the primary network node can obtain the information from the third UE-AMBR information and One UE-AMBR information is selected from the fourth UE-AMBR information, and the data transmission rate is controlled according to the selected UE-AMBR information.
  • the first bearer establishment request and the second bearer establishment request further include fifth APN-AMBR information
  • the fifth APN-AMBR information is the APN-AMBR information suggested by the main network node
  • the fifth APN- The AMBR information and the access information are used to determine the third APN-AMBR information and the fourth APN-AMBR information.
  • the packet data network element uses the fifth APN-AMBR information and access information to obtain the first APN-AMBR information
  • the second APN-AMBR information is adjusted to obtain third APN-AMBR information and fourth APN-AMBR information.
  • a tenth aspect of the embodiments of the present application provides a mobility management network element, and the mobility management network element has a function of implementing the method provided in the ninth aspect.
  • the functions can be realized by hardware, and the corresponding software can also be implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the mobility management network element includes: a first processing unit and a second processing unit; a first processing unit configured to determine whether the terminal uses access information for NR access; a second processing unit, It is configured to generate first APN-AMBR information and second APN-AMBR information according to the access information.
  • the mobile management network element includes a processor, a transceiver, and a memory, where the transceiver is used to receive and send information, the computer stores instructions for execution in the memory, and the processor communicates with the memory and the transceiver through the bus.
  • the processor executes computer execution instructions stored in the memory, so that the mobility management network element performs the following operations: determining whether the terminal uses access information for NR access; and generating first APN-AMBR information and second information based on the access information. APN-AMBR information.
  • the implementation of the mobile management network element can refer to the implementation of the method and repeat The details are not repeated here.
  • a computer-readable storage medium stores instructions, and when the computer-readable storage medium runs on a computer, the computer executes the method described in the ninth aspect.
  • a twelfth aspect of the embodiments of the present application provides a computer program product containing instructions, which when executed on a computer, causes the computer to execute the method described in the ninth aspect.
  • a thirteenth aspect of the embodiments of the present application provides a rate adjustment method, including:
  • the session management network element determines whether the terminal uses access information for NR access
  • the session management network element generates the first session-AMBR information and the second session-AMBR information according to the access information.
  • the first session-AMBR information is the session-AMBR information corresponding to the NR access, and the second session-AMBR information is not used.
  • the thirteenth aspect of the present application is applied in a 5GS MR-DC scenario, and when the terminal suddenly uses NR access or suddenly does not use NR access, the session management network element generates a first session according to whether the terminal uses NR access -AMBR information and second session-AMBR information, so that the terminal and the main network node can select an AMBR information to use according to whether the terminal uses NR access, so that the user plane network element determines which AMBR to use according to the instructions of the mobile management network element.
  • the session management network element when the session management network element generates the first session-AMBR information and the second session-AMBR information, the session management network element sends a session management request to the user plane network element, and the session management request includes the first session- AMBR information, second session-AMBR information, and indication information, so that the user plane network element selects one session-AMBR information from the first session-AMBR information and the second session-AMBR information to control the data transmission rate according to the indication information.
  • the session management network element sends a first message to the primary network node through the access management network element, where the first message includes first session-AMBR information and second session-AMBR information, and the first session-
  • the AMBR information and the second session-AMBR information are used by the primary network node to calculate the UE-AMBR and the second UE-AMBR, and select one of the first UE-AMBR information and the second UE-AMBR information according to whether the terminal uses NR access.
  • UE-AMBR information, and the data transmission rate is controlled according to the selected UE-AMBR information.
  • the session management network element sends a policy update request to the policy management network element.
  • the policy update request includes first session-AMBR information, second session-AMBR information, and access information.
  • the access information is used for
  • the policy management network element determines the third session-AMBR information and the fourth session-AMBR information;
  • the session management network element receives a policy update response from the policy management network element, and the policy update response includes the third session-AMBR information and the fourth session-AMBR Information;
  • the session management network element sends a session management request to the user plane network element, and the session management request includes the third session-AMBR information, the fourth session-AMBR information, and the indication information, so that the user plane network element receives the third session according to the indication information.
  • the policy update request further includes fifth session-AMBR information
  • the fifth session-AMBR information is the session-AMBR information recommended by the main network node
  • the fifth session-AMBR information and access information are used for
  • the policy management network element determines the third session-AMBR information and the fourth session-AMBR information.
  • the session management network element sends a first message to the primary network node through the access management network element, where the first message includes the third session-AMBR information and the fourth session-AMBR information, and the third session-
  • the AMBR information and the fourth session-AMBR information are used by the primary network node to calculate the third UE-AMBR and the fourth UE-AMBR, and from the third UE-AMBR information and the fourth UE-AMBR information according to whether the terminal uses NR access Select one UE-AMBR information and control the data transmission rate according to the selected UE-AMBR information.
  • a fourteenth aspect of the embodiments of the present application provides a session management network element, and the session management network element has a function of implementing the method provided in the thirteenth aspect.
  • the functions can be realized by hardware, and the corresponding software can also be implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the session management network element includes: a first processing unit and a second processing unit; a first processing unit configured to determine whether the terminal uses access information for NR access; a second processing unit, It is configured to generate first session-AMBR information and first session-AMBR information according to the access information.
  • the session management network element includes: a processor, a transceiver, and a memory, where the transceiver is used to receive and send information, the computer executes instructions stored in the memory, and the processor communicates with the memory and the transceiver through the bus.
  • the processor executes computer execution instructions stored in the memory, so that the session management network element performs the following operations: determining whether the terminal uses access information for NR access; and generating first session-AMBR information and first information according to the access information. session-AMBR information.
  • the implementation of the session management network element can refer to the implementation of the method. The duplicates will not be repeated.
  • a fifteenth aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute the method described in the thirteenth aspect.
  • a sixteenth aspect of the embodiments of the present application provides a computer program product containing instructions, which when executed on a computer, causes the computer to execute the method described in the thirteenth aspect.
  • a seventeenth aspect of the embodiments of the present application provides a rate adjustment system including a mobile management network element and a main network node;
  • a main network node configured to send a first message to a mobile management network element
  • a mobility management network element configured to receive a first message, where the first message includes first indication information, and the first indication information is used to indicate whether the terminal uses NR access; and to determine whether the terminal uses the first indication information Access information for NR access; first APN-AMBR information is determined according to the access information.
  • the rate adjustment system provided in the seventeenth aspect of this application is applied in a 5GS MR-DC scenario.
  • the primary network node sends first indication information to the mobile management network element to indicate whether the terminal uses NR access.
  • the mobile management network element is based on Whether the terminal uses NR access to determine the first APN-AMBR information.
  • the mobile management network element may notify the first APN-AMBR information to the user plane network element, so that the user plane network element adjusts the data transmission rate of the terminal on the user plane network element according to the first APN-AMBR information, thereby realizing An APN-AMBR information adaptively adjusts the data transmission rate of the terminal on the user plane network element, thereby avoiding data loss and ensuring data transmission efficiency.
  • the rate adjustment system further includes a service network element and a packet data network element;
  • the serving network element receives a first bearer management request from the mobile management network element, the first bearer management request includes access information, and sends a second bearer management request to the packet data network element, where the second bearer management request includes access information;
  • the packet data network element receives the second bearer management request, the third APN-AMBR information is determined according to the access information, and the data transmission rate of the packet data network element is controlled according to the third APN-AMBR information;
  • the packet data sends a second bearer management response to the serving network element, the second bearer management response is used to respond to the second bearer management request, and the second bearer management response includes the third APN-AMBR information;
  • the serving network element is receiving the second bearer management In the case of a response, a first bearer management response is sent to the mobile management network element, and the first bearer management response includes third APN-AMBR information.
  • the mobility management network element may notify the third APN-AMBR information to the user plane network element, so that the user plane network element adjusts the data transmission rate of the terminal on the user plane network element according to the third APN-AMBR information, thereby realizing The three APN-AMBR information adaptively adjusts the data transmission rate of the terminal on the user plane network element.
  • the rate adjustment system further includes a service network element, a packet data network element, and a policy rule network element;
  • the serving network element receives a first bearer management request from the mobile management network element, the first bearer management request includes access information, and sends a second bearer management request to the packet data network element, where the second bearer management request includes access information;
  • the packet data network element receives the second bearer management request, it triggers the modification or establishment process of the IP-CAN session, and sends an IP-CAN session management request to the policy rule network element.
  • the IP-CAN session management request includes access Information; the policy rule network element determines the third APN-AMBR information according to the access information, and sends an IP-CAN session management response to the packet data network element, the IP-CAN session management response includes the third APN-AMBR information; the packet data network When the element receives the third APN-AMBR information, it sends a second bearer management response to the serving network element, and controls the data transmission rate on the packet data network element according to the third APN-AMBR information.
  • the second bearer management The response is used to respond to the second bearer management request.
  • the second bearer management response includes the third APN-AMBR information.
  • Mobility management element transmits a first bearer management response, the first response comprises a third bearer management information APN-AMBR.
  • the mobility management network element may notify the third APN-AMBR information to the user plane network element, so that the user plane network element adjusts the data transmission rate of the terminal on the user plane network element according to the third APN-AMBR information, thereby realizing The three APN-AMBR information adaptively adjusts the data transmission rate of the terminal on the user plane network element.
  • An eighteenth aspect of the embodiments of the present application provides a rate adjustment system including an access management network element and a session management network element;
  • An access management network element configured to obtain first indication information, where the first indication information is used to indicate whether the terminal uses NR access;
  • the session management network element is configured to receive a first message from the access management network element, where the first message includes first indication information; and determine the first session-AMBR information according to the first indication information.
  • the rate adjustment system provided in the eighteenth aspect of the present application is applied in a 5GSMR-DC scenario.
  • the access management network element obtains the first indication information of whether the terminal uses NR access and sends it to the session management network element, the session.
  • the management network element determines the first session-AMBR information according to the first instruction information.
  • the session management network element may notify the terminal and / or the user plane network element of the first session-AMBR information, so that the terminal and / or the user plane network element can adjust the data transmission rate according to the first session-AMBR information, thereby realizing A session-AMBR information adaptively adjusts the data transmission rate, thereby avoiding data loss and ensuring data transmission efficiency.
  • the rate adjustment system further includes a master network node
  • the primary network node sends the first instruction information to the access management network element, so that the access management network element obtains the first instruction information, and sends the first instruction information to the session management network element through the first message, so that the session management network element Knowing the first instruction information.
  • the access management network element may determine whether the terminal uses the first indication information of the NR access according to the second indication information, the location of the terminal, the third indication information, and the first configuration information.
  • the second indication information and the location of the terminal are sent by the master network node to the access management network element.
  • the second indication information is used to indicate the dual connection capability of the master network node.
  • the location of the terminal may be a tracking area to which the terminal belongs.
  • the third indication information is sent by the terminal to the access management network element, and the third indication information is used to indicate whether the terminal has dual connectivity capability.
  • the rate adjustment system further includes a policy management network element
  • the policy management network element receives a policy update request from the session management network element, and the policy update request includes access information; determines the third session-AMBR information according to the access information, and sends a policy update response to the session management network element, and the policy update response Includes third session-AMBR information.
  • the session management network element may notify the third session-AMBR information to the terminal and / or the user plane network element, so that the terminal and / or the user plane network element can adjust the data transmission rate according to the third session-AMBR information, thereby realizing
  • the three session-AMBR information adaptively adjusts the data transmission rate, thereby avoiding data loss and ensuring data transmission efficiency.
  • FIG. 1 is a schematic diagram of an MR-DC network architecture in 5GS
  • FIG. 2 is a schematic diagram of another MR-DC network architecture in 5GS
  • FIG. 3 is a schematic diagram of another MR-DC network architecture in 5GS
  • FIG. 4 is a schematic diagram of a network architecture of a rate adjustment system according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a network architecture of another rate adjustment system according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a rate adjustment method according to Embodiment 1 of the present application.
  • FIG. 8 is a schematic flowchart of a rate adjustment method provided in Embodiment 2 of the present application.
  • FIG. 9 is a schematic flowchart of a rate adjustment method provided in Embodiment 3 of the present application.
  • FIG. 10 is a schematic flowchart of a rate adjustment method provided in Embodiment 4 of the present application.
  • FIG. 11 is a schematic diagram of a logical structure of a communication device according to an embodiment of the present application.
  • At least one or more of the following or similar expressions refers to any combination of these items, including any combination of single or plural items.
  • at least one (a) of a, b, or c can be expressed as: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • words such as “first” and “second” are used to distinguish the same or similar items having substantially the same functions and functions. Those skilled in the art can understand that the words “first”, “second” and the like do not limit the number and execution order, and the words “first” and “second” are not necessarily different.
  • the network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 1 is a schematic diagram of an MR-DC network architecture in 5GS, which is an E-UTRAN-NR dual-connection (EN-DC) network architecture.
  • the primary network node is the primary base station and is the eNB;
  • the secondary network node is the secondary base station and is the gNB;
  • the core network node includes the control plane network element, and the control plane network element may be a mobility management entity (mobility management entity). , MME) network element.
  • the S1-MME signaling plane interface exists between the primary network node and the MME network element, and the X2-C signaling plane interface and the X2-U user plane interface exist between the primary network node and the secondary network node.
  • the primary network node and the serving network element There is an S1-U user plane interface between them, and there is an S1-U user plane interface between the secondary network node and the serving network element.
  • the serving network element may be a serving gateway (SGW) network element.
  • SGW serving gateway
  • FIG. 2 is a schematic diagram of another MR-DC network architecture in 5GS. It is a next-generation radio access network (NG-RAN) E-UTRAN-NR dual-connection (NGEN-DC) network.
  • NG-RAN next-generation radio access network
  • NGEN-DC E-UTRAN-NR dual-connection
  • the primary network node is the primary base station and is the eNB
  • the secondary network node is the secondary base station and is the gNB
  • the core network node includes the control plane network element
  • the control plane network element may be (access and mobility management function, AMF ) Network element.
  • the N2 signaling plane interface exists between the primary network node and the AMF network element
  • the Xn-C signaling plane interface and the Xn-U user plane interface exist between the primary network node and the secondary network node.
  • the user plane network element may be a user plane
  • FIG. 3 is a schematic diagram of another MR-DC network architecture in 5GS, which is a NR E-UTRAN dual connection (NE-DC) network architecture.
  • the primary network node is the primary base station and is the gNB;
  • the secondary network node is the secondary base station and is the eNB;
  • the core network node includes the control plane network element, and the control plane network element may be an AMF network element.
  • the N2 signaling plane interface exists between the primary network node and the AMF network element, and the Xn-C signaling plane interface and the Xn-U user plane interface exist between the primary network node and the secondary network node.
  • the user plane network element may be a UPF network element.
  • interface names between the various network elements in FIGS. 1-3 are only examples, and the interface names may be other names in the specific implementation, which is not specifically limited in the embodiment of the present application.
  • the primary network node is responsible for allocating resources on the radio access network (RAN) side of the bearer or session.
  • the primary network node can allocate the resources of the primary network node to the bearer or session, or The resources of the secondary network nodes are allocated to bearers or sessions.
  • the network element on the control plane of the core network does not know whether the provider of the resource on the RAN side of the bearer or session is the primary network node or the secondary network node.
  • the parameters that control the data transmission rate of the UE include APN-AMBR and UE-AMBR.
  • the rate control of the APN-AMBR is performed on the packet data network gateway (PGW) network element and the UE, and is used to limit the aggregate maximum bit rate of all Non-GBR bearers carried by the UE on a certain APN.
  • the rate control of the UE-AMBR is performed on the RAN, and is used to limit the aggregated maximum bit rate of all Non-GBR bearers of the UE.
  • the parameters that control the data transmission rate of the UE include session-AMBR and UE-AMBR.
  • the session-AMBR rate control is performed on the UPF network element and the UE, and is used to limit the aggregate maximum bit rate of all Non-GBR QoS flows of the UE in a certain session.
  • the rate control of the UE-AMBR is performed on the RAN, and is used to limit the aggregate maximum bit rate of all Non-GBR QoS flows of the UE.
  • GBR guaranteed bit rate
  • the embodiments of the present application provide a rate adjustment method, a device and a system thereof, which can adaptively adjust a data transmission rate, thereby avoiding data loss and ensuring data transmission efficiency.
  • FIG. 4 and FIG. 5 are schematic diagrams of network architectures of two rate adjustment systems according to an embodiment of the present application.
  • the rate adjustment system shown in FIG. 4 can implement adjustment of a bearer data transmission rate
  • the rate adjustment system shown in FIG. 5 can To adjust the data transmission rate of the session.
  • FIG. 4 is a schematic diagram of a network architecture of a rate adjustment system according to an embodiment of the present application.
  • the rate adjustment system may include a mobile management network element 101 and a master network node 102.
  • the mobility management network element 101 may be an MME network element, and the MME network element is responsible for access control and mobility management.
  • the primary network node 102 is responsible for allocating the RAN-side resources that are carried.
  • the RAN-side resources may come from the primary network node 102 or from the secondary network node.
  • the mobility management network element 101 is configured to determine whether the terminal uses access information for NR access, and determine the first APN-AMBR information according to the access information.
  • the mobility management network element 101 may be configured to receive first indication information from the primary network node 102.
  • the first indication information is used to indicate whether the terminal uses NR access, so that the mobility management network element 101 may determine whether the terminal is used according to the first indication information.
  • Access information used by NR Applied in the embodiment of the present application, the master network node 102 is configured to send the first indication information to the mobile management network element.
  • the mobility management network element 101 may be used to autonomously determine whether the terminal uses access information for NR access according to some information. For example, the mobility management network element 101 uses the second instruction information, the location of the terminal, the third instruction information, and the first configuration information. Determine whether the terminal uses NR access.
  • the second indication information and the location of the terminal are sent by the master network node 102 to the mobile management network element 101.
  • the second indication information is used to indicate the dual connectivity capability of the master network node.
  • the location of the terminal may be a tracking area to which the terminal belongs.
  • the third instruction information is sent by the terminal to the mobile management network element 101, and is used to indicate the dual connection capability of the terminal.
  • the first configuration information includes the dual connection capability of the tracking area identification code and the tracking area corresponding to the tracking area identification code, and may be configured by an operator.
  • the main network node 102 is further configured to send the second indication information and the location of the terminal to the mobile management network element 101.
  • the mobility management network element 101 may be configured to determine the first APN-AMBR information according to the access information and the second APN-AMBR information.
  • the second APN-AMBR information is the APN-AMBR information recommended by the master network node 102, and the master network node 102 sends the second APN-AMBR information to the mobility management network element 101.
  • the main network node 102 may carry the second APN-AMBR information and the first indication information in the same message and send it to the mobile management network element 101, for example, in the first message.
  • the mobility management network element 101 is further configured to send the first APN-AMBR information to the terminal, so that the terminal controls the data transmission rate according to the first APN-AMBR information.
  • the rate adjustment system shown in FIG. 4 further includes a service network element 103 and a packet data network element 104.
  • the serving network element 103 may be an SGW network element.
  • the SGW network element performs routing and forwarding of data packets under the control of the MME network element, and forwards the received data to a designated PGW network element.
  • the packet data network element may be a PGW network element, and the PGW network element is responsible for session and bearer management.
  • the serving network element 103 is configured to receive a first bearer management request from the mobile management network element 101.
  • the first bearer management request includes access information, and sends a second bearer management request to the packet data network element 104.
  • the second bearer management request includes access information; when the packet data network element 104 receives the second bearer management request, the third APN-AMBR information is determined according to the first access information, and the third APN-AMBR information is used for packet data
  • the network element 104 controls the data transmission rate and sends a second bearer management response to the serving network element 103.
  • the second bearer management response includes the third APN-AMBR information.
  • the serving network element 103 When the serving network element 103 receives the second bearer management response, Send a first bearer management response to the mobile management network element 101, and the first bearer management response includes the third APN-AMBR information; when the mobile management network element 101 receives the first bearer management response, it may send a third APN-AMBR to the terminal Information so that the terminal can control the data transmission rate according to the third APN-AMBR information.
  • the first bearer management request may be a first bearer establishment request or a first bearer modification request
  • the second bearer management request, the first bearer management response, and the second bearer management response are the same. It should be noted that when the first bearer management request is the first bearer establishment request, the second bearer management request is the second bearer establishment request, the first bearer management response is the first bearer establishment response, and the second bearer management response is the first Second bearer establishment response.
  • the first bearer management request and the second bearer management request further include the second APN-AMBR information
  • the packet data network element 104 is further configured to determine the third APN-AMBR information according to the second APN-AMBR information and the access information. .
  • the rate adjustment system shown in FIG. 4 further includes a service network element 103, a packet data network element 104, and a policy rule network element 105.
  • the serving network element 103 may be an SGW network element.
  • the SGW network element performs routing and forwarding of data packets under the control of the MME network element, and forwards the received data to a designated PGW network element.
  • the packet data network element may be a PGW network element, and the PGW network element is responsible for session and bearer management.
  • the policy rule network element 105 may be a policy and charging rule function (PCRF) network element, and includes functions of policy control decision-making and flow-based charging control.
  • PCRF policy and charging rule function
  • the serving network element 103 is configured to receive a first bearer management request from the mobile management network element 101.
  • the first bearer management request includes access information, and sends a second bearer management request to the packet data network element 104.
  • the second bearer management request includes access information; when the packet data network element 104 receives the second bearer management request, it sends an IP-CAN session management request to the policy rule network element 105, and the IP-CAN session management request includes access information ;
  • the policy rule network element 105 determines the third APN-AMBR information according to the first access information, the third APN-AMBR information is used for the packet data network element 104 to control the data transmission rate, and sends an IP- CAN session management response.
  • the IP-CAN session management response includes the third APN-AMBR information.
  • the management response includes the third APN-AMBR information; when the serving network element 103 receives the second bearer management response, it sends a first bearer management response to the mobile management network element 101, and the first bearer management Should include the third APN-AMBR information; when the mobile management network element 101 receives the first bearer management response, it can send the third APN-AMBR information to the terminal so that the terminal can control the data transmission rate according to the third APN-AMBR information .
  • the above IP-CAN session management request may be an IP-CAN session establishment request or an IP-CAN session modification request, and the IP-CAN session management response is similar. It should be noted that when the IP-CAN session management request is an IP-CAN session establishment request, the IP-CAN session management response may be an IP-CAN session establishment response.
  • the first bearer management request, the second bearer management request, and the IP-CAN session management request further include the second APN-AMBR information
  • the policy rule network element 105 is further configured to receive the second APN-AMBR information and access information. Determine the third APN-AMBR information.
  • the main network node, mobility management network element, service network element, packet data network element, and policy rule network element in FIG. 4 are only a name, and the name does not constitute a limitation on the device itself.
  • the network element or entity corresponding to the main network node, the mobile management network element, the service network element, the packet data network element, and the policy rule network element may also have other names. Embodiments of this application This is not specifically limited.
  • FIG. 5 is a schematic diagram of a network architecture of another rate adjustment system according to an embodiment of the present application, which may include an access management network element 201 and a session management network element 202.
  • the access management network element 201 may be an AMF network element, and is used for mobility and access management.
  • the session management network element 202 may be a session management function (SMF) network element, which is used to manage the session of the terminal, including session establishment, session modification, and session release.
  • SMF session management function
  • the access management network element 201 is configured to obtain first indication information, and the first indication information is used to indicate whether the terminal uses NR access, and sends a first message to the session management network element 202. Carry the first indication information; when receiving the first message, the session management network element 202 determines the first session-AMBR information according to the first indication information.
  • the rate adjustment system shown in FIG. 5 further includes a primary network node 205, which is responsible for allocating the RAN-side resources of the bearer.
  • the RAN-side resources may come from the primary network node 102 or the secondary network node.
  • the master network node 205 is configured to send the first indication information to the access management network element 201 so that the access management network element 201 can obtain the first indication information.
  • the master network node 205 is further configured to send the second indication information and the location of the terminal to the access management network element 201, so that the access management network element 201 may perform the second indication information, the location of the terminal, the third indication information, and the first configuration.
  • the information determines the first indication information.
  • the second indication information is used to indicate the dual connection capability of the main network node, and the location of the terminal may be a tracking area to which the terminal belongs.
  • the third indication information is sent by the terminal to the access management network element 201, and is used to indicate the dual connection capability of the terminal.
  • the first configuration information includes the dual connection capability of the tracking area identification code and the tracking area corresponding to the tracking area identification code, and may be configured by an operator.
  • the master network node 205 is further configured to send the second session-AMBR information to the access management network element 201, and the second session-AMBR information is the session-AMBR information recommended by the master network node.
  • the access management network element 201 may send the second session-AMBR information to the session management network element 202.
  • the access management network element 201 may send the second session-AMBR information and the first indication information to the session management network element 202 in a same message.
  • the first message also includes the second session-AMBR information.
  • the rate adjustment system shown in FIG. 5 further includes a user plane network element 204.
  • the user plane network element 204 may be a UPF network element for routing / forwarding data packets.
  • the user plane network element 204 receives the first session-AMBR information from the session management network element 202, and controls the data transmission rate according to the first session-AMBR information.
  • the rate adjustment system shown in FIG. 5 further includes a policy management network element 203, and the policy management network element 203 may be a policy control function (PCF) network element for providing a policy rule. Execute to the control plane.
  • PCF policy control function
  • the policy management network element 203 receives a policy update request from the session management network element 202.
  • the policy update request includes first indication information and first session-AMBR information.
  • An indication information determines the third session-AMBR information, and sends a policy update response to the session management network element 202, and the policy update response includes the third session-AMBR information.
  • the session management network element 202 may send the third session-AMBR information to the user plane network element, so that the user plane network element controls the data transmission rate according to the third session-AMBR information.
  • the main network node, access management network element, session management network element, policy management network element, and user plane network element in FIG. 5 are only a name, and the name does not constitute a limitation on the device itself.
  • the network element or entity corresponding to the main network node, access management network element, session management network element, policy management network element, and user plane network element may also have other names. This application The embodiment does not specifically limit this.
  • the rate adjustment system shown in FIG. 4 or FIG. 5 may be applied to a current 5G network or other networks in the future, which is not specifically limited in this embodiment of the present application.
  • the terminals involved in the embodiments of the present application may include various handheld devices, wireless devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication functions; Including subscriber unit, cellular phone, smart phone, wireless data card, personal digital assistant (PDA) computer, tablet computer, wireless modem (modem), handheld device (handheld), laptop computer, cordless phone or wireless local loop (WLL) station, machine type communication (MTC) terminal, UE, mobile station ( mobile station (MS), terminal device (terminal device) or relay user equipment.
  • the relay user equipment may be, for example, a 5G residential gateway (RG).
  • RG 5G residential gateway
  • the mobility management network element in FIG. 4 or the access management network element or session management network element in FIG. 5 in the embodiment of the present application may be implemented by one device, or may be implemented by multiple devices together, or may be A function module in a device is not specifically limited in this embodiment of the present application. It can be understood that the foregoing functions may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (for example, a cloud platform).
  • FIG. 6 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present application.
  • the communication device 60 includes at least one processor 601, a communication line 602, a memory 603, and at least one communication interface 604.
  • the processor 601 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the program of the solution of the present application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 602 may include a path for transmitting information between the aforementioned components.
  • the communication interface 604 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the memory 603 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), or other types that can store information and instructions
  • Dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory (EEPROM)), read-only compact disc (compact disc-read-only memory (CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory may exist independently, and is connected to the processor through the communication line 602. The memory can also be integrated with the processor.
  • the memory 603 is configured to store a computer execution instruction for executing the solution of the present application, and the processor 601 controls execution.
  • the processor 601 is configured to execute computer execution instructions stored in the memory 603, so as to implement the rate adjustment method provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 601 may include one or more CPUs.
  • the communication device 60 may include multiple processors. Each of these processors can be a single-CPU processor or a multi-CPU processor.
  • a processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (such as computer program instructions).
  • the above-mentioned communication device 60 may be a general-purpose device or a special-purpose device.
  • the communication device 60 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device having a similar structure in FIG. 6. device.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 60.
  • the mobile management network element is an MME network element
  • the serving network element is an SGW network element
  • the packet data network element is a PGW network element
  • the policy rule network element is a PCRF network element.
  • the incoming management network element is an AMF network element
  • the session management network element is an SMF network element
  • the policy management network element is a PCF network
  • the user plane network element is an UPF network element.
  • the master network node in the embodiment of the present application may be an eNB or a gNB.
  • the master network node may be referred to as a master node (MN).
  • MN master node
  • the main network node in the embodiment of the present application is described by using MN as an example.
  • the rate adjustment system shown in FIG. 4 is applied to the MR-DC network architecture shown in FIGS. 1-3 as an example.
  • FIG. 7 it is a schematic flowchart of a rate adjustment method provided in Embodiment 1 of the present application.
  • the MME network element can be implemented by the communication device shown in FIG. 6. The method may include, but is not limited to, the following steps:
  • Step S601 The MN sends the first instruction information to the MME network element. Accordingly, the MME network element receives the first indication information from the MN.
  • the first indication information may be dual connection indication information (DC indication), which is used to indicate whether the terminal uses NR access. Whether the terminal uses NR access, that is, whether the terminal uses NR to access gNB. If the terminal uses NR access, the terminal can use the NR system for data transmission; if the terminal does not use NR access, the terminal cannot use the NR system for data transmission. .
  • DC indication dual connection indication information
  • the first indication information may be indicated by a RAT type.
  • the terminal does not use NR access, and the RAT type is E-UTRAN; the terminal uses NR access, and the RAT type is NR.
  • the first indication information may also be indicated by a value of an indication bit.
  • the value of the indication bit is 0, which indicates that the terminal does not use NR access; the value of the indication bit is 1, which indicates that the terminal uses NR access.
  • the first indication information may also be indicated by a bearer identifier and a RAT type, and may also be indicated by a value of a bearer identifier and an indication bit.
  • the first indication information may also be indicated by a session identifier and a RAT type, and may also be indicated by a session identifier and a value of an indication bit.
  • the MN is one of the two network nodes that are dual-connected by the terminal.
  • the MN is mainly used to allocate resources and provide data transmission for the two network nodes in a 5GSMR-DC scenario.
  • Another network node that is dual-connected may be referred to as a secondary network node or a secondary node (SN).
  • the secondary network node in this application uses the SN as an example.
  • the MN may send the first indication information to the MME network element through the first message, that is, the first indication information is carried in the first message.
  • the first message may be a notification message or other types of messages, which is not limited in the embodiment of the present application.
  • the first message also includes second APN-AMBR information.
  • the second APN-AMBR information is the APN-AMBR information recommended by the MN.
  • the MN may determine the recommended APN-AMBR information according to the actual usage of the MN.
  • the MN when the MN receives the detection request sent by the MME network element, it detects whether the terminal uses NR access and notifies the MME network element of the result through the first instruction information, so that the MME network Yuan can know whether the terminal uses NR access.
  • the MN may detect whether the terminal uses NR access, and notify the MME network element of the result through the first indication information, so that the MME network Yuan can know whether the terminal uses NR access.
  • the MN may also actively detect whether the terminal uses NR access, and notify the MME network element of the result through the first indication information, so that the MME network element can know whether the terminal uses NR access.
  • the first indication information may be carried in an initial terminal message (Initial UE Message), a downlink non-access layer transmission (Uplink NAS transport) message, a path switch request (Path switch request) message, and a switch request (HO required) message, HO Notify message, EPS radio access bearer modification indication (e-RAB Modification Indication) message, EPS radio access bearer release indication (e-RAB Release Indication) message, terminal context modification indication (UE Context Modify Indication) Message, or a UE Context Release Indication message.
  • the MN can determine that the terminal does not use NR access in the following situations:
  • Case 1 If the MN is an eNB and the SN is gNB, the signal strength of the gNB is very weak (for example, lower than the threshold) or the terminal loses the gNB signal connection when the terminal moves out of the dual connection coverage area;
  • the MN can determine that the terminal uses NR access in the following situations:
  • the terminal establishes a signal connection to the gNB, switches the non-GBR bearer / QoS flow to the gNB, or selects a gNB for the newly created bearer / QoS flow, and uses the gNB to transmit data.
  • the MME network element can learn whether the terminal uses NR access according to the first instruction information. In addition to this method, the MME network element can also know whether the terminal uses NR access by other methods. For example, the MME network element may determine whether the terminal uses NR access according to the second indication information, the location of the terminal, the third indication information, and the first configuration information.
  • the second indication information and the location of the terminal are sent by the MN to the MME network element.
  • the second indication information is used to indicate the dual connectivity capability of the MN, that is, whether it has dual connectivity capability.
  • the MN having dual connectivity capability means that the MN can be a terminal Allocate your own resources, and you can also allocate resources for other network nodes to the terminal.
  • the location of the terminal may be a tracking area to which the terminal belongs.
  • the third instruction information is sent by the terminal to the MME network element, and the third instruction information is used to indicate whether the terminal has dual connectivity capability, that is, whether the terminal can connect to two network nodes at the same time.
  • the terminal may send the third indication information to the MME network element before step S601, and may send the third indication information to the MME network element through a non-access-stratum (NAS) message, that is, the third indication information is carried on the NAS
  • the NAS message may be an Attach Request, a TAU Request, a Service Request, a Bearer Resource Allocation Request, a Bearer Resource Modification Request Or packet data network connection request (PDN Connectivity Request).
  • PDN Connectivity Request packet data network connection request
  • the first configuration information may be configured by the operator, and may include a dual connection capability of the tracking area identifier and a tracking area corresponding to the tracking area identifier.
  • the dual connection capability of the tracking area refers to whether the tracking area supports terminals in the area at the same time. Connected to two network nodes.
  • the MME network element can determine the access information of the terminal using NR access; if the terminal enters from a tracking area that supports dual connectivity to a tracking area that does not support dual connectivity, at this time the tracking area to which the terminal belongs belongs does not support dual connectivity.
  • the MME network element can determine the access information of the terminal not using NR access.
  • a terminal When a terminal enters a tracking area that supports dual connectivity from a tracking area that does not support dual connectivity, or enters a tracking area that does not support dual connectivity from a tracking area that supports dual connectivity, it will trigger a tracking area update (TAU). , Thereby triggering the MN to send the first indication information to the MME network element.
  • TAU tracking area update
  • Step S602 The MME network element determines the first APN-AMBR information according to the first instruction information.
  • the APN-AMBR information may include the values of the parameter APN-AMBR and the value of the parameter APN-AMBR for controlling the data transmission rate.
  • APN-AMBR is used to limit the aggregate maximum bit rate of all non-GBR bearers on a certain APN.
  • the rate control of APN-AMBR can be performed on the terminal, that is, the terminal can perform data transmission rate according to the value of the APN-AMBR parameter. Adjustment, for example, the maximum value of the data transmission rate on the control terminal does not exceed the value of the APN-AMBR parameter; rate control can also be performed on the PGW network element, that is, the PGW network element can adjust the data transmission rate according to the value of the APN-AMBR parameter Make adjustments.
  • the MME network element may determine the first APN-AMBR information according to the access information and the second configuration information.
  • the second configuration information includes using the NR to access the corresponding APN-AMBR information or not using the NR. Access the corresponding APN-AMBR information.
  • the access information is that the terminal uses NR access.
  • the MME network element may select the NR access corresponding APN-AMBR information from the second configuration information and use it as the first APN- AMBR information.
  • not using NR access may be that the terminal uses E-UTRAN to transmit data and does not use NR to access network nodes.
  • Using NR access can be a terminal using NR to transmit data.
  • the first message further includes second APN-AMBR information
  • the MME network element may determine the first APN-AMBR information according to the access information and the second APN-AMBR information, that is, combining the access information and The second APN-AMBR information is used to determine the first APN-AMBR information.
  • the MME network element may send the first APN-AMBR information to the terminal.
  • the first APN-AMBR information is used by the terminal to control the data transmission rate according to the first APN-AMBR information. That is, the terminal adjusts the data transmission rate on the terminal according to the first APN-AMBR information to prevent the data transmission rate on the terminal from exceeding the value of the first APN-AMBR parameter or increase the data transmission rate on the terminal to ensure data transmission efficiency.
  • the mobile management network element may not send the currently determined first APN-AMBR information to the terminal, the terminal may not adjust the data transmission rate, and may also save system signaling.
  • the MME network element When the MME network element determines the first APN-AMBR information, it can calculate and determine the first UE-AMBR information according to the first APN-AMBR information, and send the first UE-AMBR information to the MN, so that the MN can UE-AMBR information controls the data transmission rate of the terminal.
  • the UE-AMBR information may include values of UE-AMBR parameters and UE-AMBR parameters, and is used to control the data transmission rate.
  • UE-AMBR is used to limit the aggregate maximum bit rate of all non-GBR bearers of the terminal.
  • UE-AMBR rate control can be performed on the MN, that is, the MN adjusts its data transmission rate according to the value of the parameters of the UE-AMBR information. For example, the maximum value of the data transmission rate of the control terminal on the MN does not exceed the value of the UE-AMBR parameter.
  • the mobile management network element may not send the currently determined first UE-AMBR information to the main network node, and the main network node may not adjust the data transmission rate, and may also save system signaling.
  • step S602 the following steps may be further included:
  • Step S603 The MME network element sends a first bearer management request to the SGW network element. Accordingly, the SGW network element receives the first bearer management request from the MME network element.
  • the first bearer management request includes first indication information, and may further include second APN-AMBR information, may further include first APN-AMBR information, and may further include a bearer identifier.
  • Step S604 The SGW network element sends a second bearer management request to the PGW network element. Accordingly, the PGW network element receives the second bearer management request from the SGW network element.
  • the second bearer management request includes the first indication information, may also include the second APN-AMBR information, may further include the first APN-AMBR information, and may further include a bearer identifier.
  • Step S605 The PGW network element determines the third APN-AMBR information according to the first instruction information.
  • the PGW network element may determine the third APN-AMBR information according to the first indication information.
  • the PGW network element may also determine the third APN-AMBR information according to the first indication information and the second configuration information, and the same MME network element according to the first indication information and the second configuration information The first APN-AMBR information is determined, but there is a difference in the execution subject.
  • the PGW network element determines the third APN-AMBR information according to the first indication information and the second APN-AMBR information, which is the same as the MME network element according to the first The indication information and the second APN-AMBR information determine the first APN-AMBR information, but there is a difference in the execution subject.
  • the PGW network element may combine the first indication information and the second information on the basis of the first APN-AMBR information. APN-AMBR information to determine the third APN-AMBR information.
  • the data transmission rate can be controlled according to the third APN-AMBR information, for example, the data transmission rate of the terminal on the PGW network element is controlled.
  • the PGW network element may control the data transmission rate according to the first APN-AMBR information.
  • Step S606 The PGW network element sends a second bearer management response to the SGW network element. Accordingly, the SGW network element receives a second bearer management response from the PGW network element.
  • the second bearer management response is used to respond to the second bearer management request.
  • the second bearer management response includes the third APN-AMBR information, and may further include a bearer identifier.
  • Step S607 The SGW network element sends a first bearer management response to the MME network element. Accordingly, the MME network element receives the first bearer management response from the SGW network element.
  • the first bearer management response is used to respond to the first bearer management request.
  • the first bearer management response includes the third APN-AMBR information, and may further include a bearer identifier.
  • the first bearer management response and the second bearer management response further include fourth instruction information.
  • the MME network element receives the fourth instruction information
  • the MME network element sends the fourth instruction information to the MN, where the fourth instruction information is used for Indicates whether the MN allocates the resources of the MN or the resources of the SN for the bearer, so that the MN determines whether to allocate the resources of the MN or the SN for the bearer.
  • the fourth indication information may be obtained by the PGW network element from the PCRF network element, and the PCRF network element may determine the fourth indication information according to the bearer QCI.
  • the MME network element may also determine the fourth instruction information according to the bearer's QCI, and send the fourth instruction information to the primary network node.
  • the fourth instruction information is used to indicate whether the primary network node allocates resources of the primary network node for the bearer, or whether it allocates resources for the bearer.
  • the resources of the secondary network node so that the primary network node determines whether to allocate the resources of the primary network node or the resources of the secondary network node for the bearer.
  • step S605 if the PGW network element does not perform step S605, the PGW network element may trigger an IP-CAN session management process.
  • the steps between step S604 and step S606 may include the following steps:
  • Step S605a the PGW network element sends an IP-CAN session management request to the PCRF network element. Accordingly, the PCRF network element receives the IP-CAN session management request from the PGW network element.
  • the IP-CAN session management request includes first indication information, and may also include second APN-AMBR information, and may further include first APN-AMBR information.
  • Step S605b the PCRF network element determines the third APN-AMBR information according to the first instruction information.
  • the PCRF network element may determine the third APN-AMBR information according to the first indication information.
  • the PCRF network element may also determine the third APN-AMBR information according to the first indication information and the second configuration information, and the same MME network element according to the first indication information and the second configuration information. The information determines the first APN-AMBR information, but there is a difference in the execution subject.
  • the PCRF network element determines the third APN-AMBR information according to the first indication information and the second APN-AMBR information.
  • the indication information and the second APN-AMBR information determine the first APN-AMBR information, but there is a difference in the execution subject.
  • the PCRF network element may combine the first indication information and the first indication information on the basis of the first APN-AMBR information.
  • the second APN-AMBR information is used to determine the third APN-AMBR information.
  • Step S605c the PCRF network element sends an IP-CAN session management response to the PGW network element. Accordingly, the PGW network element receives an IP-CAN session management response from the PCRF network element.
  • the IP-CAN session management response is used to respond to the IP-CAN session management request, and the IP-CAN session management response includes third APN-AMBR information.
  • the MME network element When the MME network element receives the third APN-AMBR information, it can send the third APN-AMBR information to the terminal.
  • the third APN-AMBR information is used by the terminal to control the data transmission rate according to the third APN-AMBR information. That is, the terminal adjusts the data transmission rate on the terminal according to the third APN-AMBR information to prevent the data transmission rate on the terminal from exceeding the value of the third APN-AMBR parameter, or to increase the data transmission rate on the terminal to ensure data transmission. effectiveness.
  • the MME network element When the MME network element receives the third APN-AMBR information, it can calculate and determine the third UE-AMBR information based on the third APN-AMBR information, and send the third UE-AMBR information to the MN, so that the MN can The three UE-AMBR information controls the data transmission rate on the MN.
  • the embodiment shown in FIG. 7 is applied in a 5GS MR-DC scenario.
  • the MME network element determines the first based on whether the terminal uses NR access. APN-AMBR information, the MME network element may notify the first APN-AMBR information to the PGW network element, so that the PGW network element adjusts the data transmission rate of the terminal on the PGW network element according to the first APN-AMBR information, thereby achieving The first APN-AMBR information adaptively adjusts the data transmission rate of the terminal, thereby avoiding data loss and ensuring data transmission efficiency.
  • the PGW network element may also determine the third APN-AMBR information according to the first instruction information, and adjust the data transmission rate of the terminal on the PGW network element according to the third APN-AMBR information, thereby realizing the terminal according to the first APN-AMBR information.
  • the data transmission rate is adaptively adjusted.
  • the rate adjustment system shown in FIG. 5 is applied to the MR-DC network architecture shown in FIGS. 1-3 as an example. As shown in FIG. 8, it is a schematic flowchart of a rate adjustment method provided in Embodiment 2 of the present application.
  • the AMF network element or SMF network element can be implemented by the communication device shown in FIG. 6. The method may include, but is not limited to, the following steps:
  • Step S701 The MN sends the first instruction information to the AMF network element. Accordingly, the AMF network element receives the first indication information from the MN.
  • the first indication information may be sent through a first message, that is, the first indication information is carried in the first message.
  • the first message may be a notification message or other types of messages, which is not limited in the embodiment of the present application.
  • Step S702 The AMF network element sends the first instruction information to the SMF network element. Accordingly, the SMF network element receives the first indication information from the AMF network element.
  • the AMF network element may receive the first indication information from the MN, and send the first indication information to the SMF network element through a first message, so that the SMF network element learns the first indication information.
  • the AMF network element may determine whether the terminal uses the first indication information of the NR access according to the second indication information, the location of the terminal, the third indication information, and the first configuration information.
  • the second indication information and the location of the terminal are sent by the MN to the AMF network element.
  • the second indication information is used to indicate the dual connectivity capability of the MN.
  • the location of the terminal may be a tracking area to which the terminal belongs.
  • the third instruction information is sent by the terminal to the AMF network element, and the third instruction information is used to indicate whether the terminal has dual connection capability, that is, whether the terminal can connect to two network nodes at the same time.
  • the terminal may send the third indication information to the AMF network element before step S601, and may send the third indication information to the AMF network element through the NAS message, that is, the third indication information is carried in the NAS message, and the NAS message may be a registration request message (Registration Request).
  • the AMF network element has dual connectivity capability and the terminal has dual connectivity capability
  • the terminal if the terminal enters a tracking area that supports dual connectivity from a tracking area that does not support dual connectivity, the tracking area to which the terminal belongs belongs to support dual connectivity.
  • the AMF network element can determine the first indication information of the terminal using NR access; if the terminal enters from a tracking area that supports dual connectivity to a tracking area that does not support dual connectivity, the tracking area to which the terminal belongs belongs does not support dual connectivity , The AMF network element may determine the first indication information that the terminal does not use NR access.
  • the AMF network element determines whether the terminal uses the first indication information for NR access, the first indication information is sent to the SMF network element through the first message, so that the SMF network element learns the first indication information.
  • Step S703 The SMF network element determines the first session-AMBR information according to the first instruction information.
  • the session-AMBR information may include values of the session-AMBR parameter and the session-AMBR parameter, and is used to control the data transmission rate.
  • session-AMBR is used to limit the terminal's aggregate maximum bit rate of all non-GBR bearer QoS flows on a session.
  • Session-AMBR rate control can be performed on the terminal, that is, the terminal can transmit data according to the value of the session-AMBR parameter.
  • the rate is adjusted, for example, the maximum value of the data transmission rate on the control terminal does not exceed the value of the session-AMBR parameter; the rate control can also be performed on the UPF network element, that is, the UPF network element can control the data according to the value of the session-AMBR parameter Adjust the transmission rate.
  • the SMF network element may determine the first session-AMBR information according to the access information and the second configuration information.
  • the second configuration information includes using the NR to access the corresponding session-AMBR information or not using the NR. Access the corresponding session-AMBR information.
  • the access information is that the terminal uses NR access.
  • the SMF network element may select the NR access corresponding session-AMBR information from the second configuration information and use it as the first session- AMBR information.
  • not using NR access may be that the terminal uses E-UTRAN to transmit data and does not use NR to access network nodes.
  • Using NR access can be a terminal using NR to transmit data.
  • the first message also includes second session-AMBR information.
  • the second session-AMBR information is session-AMBR information recommended by the MN.
  • the MN may determine the recommended session- AMBR information.
  • the SMF network element may determine the first session-AMBR information according to the access information and the second session-AMBR information, that is, the first session-AMBR information is determined by combining the access information and the second session-AMBR information, for example, a session management network element
  • a session-AMBR information may be determined according to the access information, and then the session-AMBR information may be increased or decreased according to the second session-AMBR information, so as to obtain the first session-AMBR information.
  • the session management network element determines the first session-AMBR information
  • the first session-AMBR information may be sent to the UPF network element, and the first session-AMBR information is used for the UPF network element.
  • Control the data transmission rate according to the first session-AMBR information that is, the UPF network element adjusts the terminal's data transmission rate on the UPF network element according to the first session-AMBR information to avoid the terminal's data transmission rate on the UPF network element Exceed the value of the first session-AMBR parameter, or increase the data transmission rate of the terminal on the UPF network element to ensure data transmission efficiency.
  • the SMF network element may send the first session-AMBR information to the UPF network element in a session management request, and the session management request further includes an N4 session identifier and a QoS flow identity (QFI).
  • step S707 may be performed after step S703.
  • the SMF network element may send the first session-AMBR information to the terminal through the AMF network element, that is, the SMF network element sends the first session-AMBR information to the AMF network element.
  • the AMF network element sends the first session-AMBR information to the terminal, and the terminal updates the session-AMBR information on the terminal according to the first session-AMBR information.
  • the SMF network element may not send the currently determined first session-AMBR information to the terminal, the terminal may not adjust the data transmission rate, and it may save system signaling.
  • the SMF network element may send the first session-AMBR information to the MN through the access management network element, that is, the SMF network element sends the AMF network element to the AMF network element. Send the first session-AMBR information.
  • the AMF network element sends the first session-AMBR information to the MN.
  • the MN updates the session-AMBR information on it based on the first session-AMBR information, and calculates and determines it based on the first session-AMBR information.
  • the first UE-AMBR information so that the MN can control the data transmission rate according to the first UE-AMBR information.
  • the UE-AMBR information may include values of UE-AMBR parameters and UE-AMBR parameters, and is used to control the data transmission rate.
  • UE-AMBR is used to limit the aggregate maximum bit rate of all non-GBR QoS flows of the terminal.
  • UE-AMBR rate control can be performed on the MN, that is, the MN adjusts its data transmission rate according to the value of the parameters of the UE-AMBR information. For example, the maximum value of the data transmission rate of the control terminal on the MN does not exceed the value of the UE-AMBR parameter.
  • the first session-AMBR information sent by the SMF network element to the AMF network element may be carried in a N11 message, and the N11 message may be a session creation response or a session update response.
  • the N11 message may also include session identification, QFI, and first session-AMBR information.
  • the N11 message may include N2 SM (session identification, QFI, first session-AMBR information) and N1 SM (session identification, QFI, first session-AMBR information).
  • the AMF network element sends an N2 message to the MN, including the first UE-AMBR information, the session identifier, the QFI, and the first session-AMBR information, for updating the session-AMBR information on the UE.
  • step S703 the following steps may be further included:
  • Step S704 The SMF network element sends a policy update request to the PCF network element. Accordingly, the PCF network element receives a policy update request from the SMF network element.
  • the policy update request includes the first indication information, may also include the second session-AMBR information, and may further include the first session-AMBR information.
  • the policy update request may be a SM Policy Update Request.
  • Step S705 The PCF network element determines the third session-AMBR information according to the first instruction information.
  • the PCF network element may determine the third session-AMBR information according to the first indication information based on the first session-AMBR information.
  • the PCF network element may also determine the third session-AMBR information according to the first indication information and the second configuration information based on the first session-AMBR information.
  • the PCF network element may base the first session-AMBR information on the first indication information and the second session-AMBR information. Determine the third session-AMBR information.
  • Step S706 The PCF network element sends a policy update response to the SMF network element. Accordingly, the SMF network element receives a policy update response from the PCF network element.
  • the policy update response includes the third session-AMBR information.
  • the policy update response may be SM Policy Update Response.
  • the policy update response further includes fourth indication information.
  • the SMF network element may further send the fourth indication information to the MN through the AMF network element, and the fourth indication information is used to indicate whether the MN is a session quality of service.
  • Flow allocates MN resources, or whether to allocate SN resources for session quality of service flows, that is, whether to allocate MN resources or SN resources for session quality of service flows, so that MN determines whether to allocate MN resources or SNs for session quality of service flows. resource of.
  • the SMF network element may determine the fourth instruction information according to the 5QI.
  • the SMF network element may also send the fourth instruction information to the MN through the AMF network element.
  • the fourth instruction information is used to indicate whether the MN is a session. Allocate MN's resources, or whether to allocate SN's resources for session's QoS flow, that is, allocate MN's resources or SN's resources for session's QoS flow, so that MN can determine to allocate MN's resources for session's QoS flow It is still a resource of SN.
  • the SMF network element When the SMF network element receives the third session-AMBR information, it can send the third session-AMBR information to the terminal through the AMF network element, that is, the SMF network element sends the third session-AMBR information to the AMF network element.
  • the AMF network The yuan sends the third session-AMBR information to the terminal, and the terminal updates the session-AMBR information on the terminal according to the third session-AMBR information.
  • the SMF network element may not send the currently determined third session-AMBR information to the terminal, the terminal may not adjust the data transmission rate, and may also save system signaling.
  • the SMF network element When the SMF network element receives the third session-AMBR information, it can also send the third session-AMBR information to the MN through the AMF network element. That is, the SMF network element sends the third session-AMBR information to the AMF network element. AMF The network element sends the third session-AMBR information to the MN. The MN updates the session-AMBR information on the third session-AMBR information according to the third session-AMBR information. The third UE-AMBR information can be calculated and determined based on the third session-AMBR information, so that the MN can The data transmission rate is controlled according to the third UE-AMBR information.
  • the SMF network element sends an N11 message to the AMF network element.
  • the N11 message can be a session creation response or a session update response.
  • the N11 message may include N2 SM (session identification, QFI, fourth indication information, first session-AMBR information) and N1 SM (session identification, QFI, first session-AMBR information).
  • the AMF network element sends an N2 message to the MN, including the session identifier, QFI, the fourth indication information, and the first session-AMBR information, for updating the session-AMBR information on the UE.
  • the SMF network element when the SMF network element receives the third session-AMBR information, the SMF network element sends the third session-AMBR information to the UPF network element, and the third session-AMBR information is used by the UPF network element according to the first
  • the three session-AMBR information controls the data transmission rate on the UPF network element.
  • the SMF network element may send the third session-AMBR information to the UPF network element in a session management request, and the session management request further includes an N4 session identifier and a QoS flow identity (QFI).
  • step S707 may be performed after step S703.
  • step S703 it sends the first session-AMBR information to the UPF network element, that is, steps S704 to S706 are not performed; or after the SMF network element executes step S703, steps S704 to S706 are performed. After the step S706 is performed, the third session-AMBR information is sent to the UPF network element.
  • the embodiment shown in FIG. 8 is applied in a 5GSMR-DC scenario.
  • the AMF network element determines the first session according to whether the terminal uses NR access.
  • the MME network element may notify the first session-AMBR information to the UPF network element, so that the UPF network element adjusts the data transmission rate on the terminal according to the first session-AMBR information, so as to implement the first session-AMBR
  • the information adaptively adjusts the data transmission rate of the terminal on the UPF network element, thereby avoiding data loss and ensuring data transmission efficiency.
  • the rate adjustment system shown in FIG. 4 is applied to the MR-DC network architecture shown in FIGS. 1-3 as an example. As shown in FIG. 9, it is a schematic flowchart of a rate adjustment method provided in Embodiment 3 of the present application.
  • the MME network element can be implemented by the communication device shown in FIG. 6. The method may include, but is not limited to, the following steps:
  • Step S801 The MN sends the first instruction information to the MME network element. Accordingly, the MME network element receives the first indication information from the MN.
  • Step S802 The MME network element determines the first APN-AMBR information and the second APN-AMBR information according to the first instruction information.
  • the first APN-AMBR information is APN-AMBR information corresponding to using NR access
  • the second APN-AMBR is APN-AMBR information corresponding to not using NR access.
  • Step S803 The MME network element sends a first bearer establishment request to the SGW network element. Accordingly, the SGW network element receives the first bearer establishment request from the MME network element.
  • the first indication information of the first bearer establishment request packet further includes first APN-AMBR information and second APN-AMBR information, and further includes a bearer identifier.
  • the first bearer establishment request further includes fifth APN-AMBR information
  • the fifth APN-AMBR information is APN-AMBR information recommended by the MN
  • the fifth APN-AMBR information and access information are used to determine the third APN-AMBR information and the third Four APN-AMBR information, for example, used by the PGW network element to adjust the first APN-AMBR information and the second APN-AMBR information according to the fifth APN-AMBR information and access information to obtain the third APN-AMBR information and the third Four APN-AMBR information.
  • Step S804 The SGW network element sends a second bearer establishment request to the PGW network element. Accordingly, the PGW network element receives the second bearer establishment request from the SGW network element.
  • the first indication information of the second bearer establishment request packet further includes the first APN-AMBR information and the second APN-AMBR information, and further includes a bearer identifier.
  • the second bearer establishment request further includes fifth APN-AMBR information carried in the first bearer establishment request.
  • Step S805 The PGW network element determines the third APN-AMBR information and the fourth APN-AMBR information according to the first instruction information.
  • the third APN-AMBR information is APN-AMBR information corresponding to using NR access
  • the fourth APN-AMBR is APN-AMBR information corresponding to not using NR access.
  • Step S806 The PGW network element sends a second bearer establishment response to the SGW network element. Accordingly, the SGW network element receives a second bearer establishment response from the PGW network element.
  • the second bearer establishment response includes the third APN-AMBR information and the fourth APN-AMBR information, and further includes fourth indication information.
  • Step S807 The SGW network element sends a first bearer establishment response to the MME network element. Accordingly, the MME network element receives a first bearer establishment response from the SGW network element.
  • the first bearer establishment response includes the third APN-AMBR information and the fourth APN-AMBR information, and further includes fourth indication information.
  • Step S808 The MME network element calculates and obtains the first UE-AMBR information and the second UE-AMBR information.
  • the MME network element may calculate the first UE-AMBR information and the second UE-AMBR information according to the first APN-AMBR information and the second APN-AMBR information.
  • the first UE-AMBR information is APN-AMBR information corresponding to using NR access
  • the second UE-AMBR is APN-AMBR information corresponding to not using NR access.
  • the MME network element may calculate the third UE-AMBR information and the fourth UE-AMBR information according to the third APN-AMBR information and the fourth APN-AMBR information.
  • the third UE-AMBR information is APN-AMBR information corresponding to using NR access
  • the fourth UE-AMBR is APN-AMBR information corresponding to not using NR access.
  • Step S809 The MME network element sends an S1-AP request message to the MN. Accordingly, the MN receives the S1-AP request message from the MME network element.
  • the S1-AP request message includes first UE-AMBR information, second UE-AMBR information, and fourth indication information, and further includes first APN-AMBR information, second APN-AMBR information, and a bearer identifier.
  • the S1-AP request message may be an initial UE context setup (Initial UE context setup) message or a downlink non-access layer transport (Downlink NAS Transport) message.
  • the S1-AP request message includes third UE-AMBR information, fourth UE-AMBR information, and fourth indication information, and further includes third APN-AMBR information, fourth APN-AMBR information, and a bearer identifier.
  • Step S810 The MN determines a UE-AMBR information according to whether the terminal uses the NR.
  • the MN selects one UE-AMBR information from the first UE-AMBR information and the second UE-AMBR information according to whether the terminal uses NR, or the third UE-AMBR information and the fourth UE-AMBR information from the terminal according to whether the terminal uses NR access. Select a UE-AMBR message.
  • the MN determines whether to allocate resources of the MN or resources of the secondary network node for the bearer according to the fourth instruction information.
  • the MN triggers a radio resource control (RRC) connection reconfiguration process, and sends the bearer identifier, the first APN-AMBR information, and the second APN-AMBR information to the terminal or sends the bearer identifier, the third APN-AMBR information, the first Four APN-AMBR information is sent to the terminal; the terminal determines which APN-AMBR information is used according to the terminal.
  • RRC radio resource control
  • step S805 if the PGW network element does not perform step S805, the PGW network element may trigger an IP-CAN session management process, and the steps between step S804 and step S806 may include the following steps:
  • Step S805a the PGW network element sends an IP-CAN session establishment request to the PCRF network element. Accordingly, the PCRF network element receives the IP-CAN session establishment request from the PGW network element.
  • Step S805b the PCRF network element determines the third APN-AMBR information and the fourth APN-AMBR information according to the first instruction information.
  • Step S805c the PCRF network element sends an IP-CAN session establishment response to the PGW network element. Accordingly, the PGW network element receives an IP-CAN session establishment response from the PCRF network element.
  • the embodiment shown in FIG. 9 is applied in a 5GS MR-DC scenario.
  • the MME network element When a terminal suddenly uses NR access or suddenly does not use NR access, the MME network element generates a first APN according to whether the terminal uses NR access. -AMBR information and second APN-AMBR information.
  • the first APN-AMBR information and the second APN-AMBR information may be sent to the PGW network element, so that the PGW network element determines which AMBR information to use according to an instruction of the MME network element.
  • the MME network element sends the third APN-AMBR information and the fourth APN-AMBR information to the PGW network element, so that the PGW network element determines which AMBR information to use according to an instruction of the MME network element.
  • the MME network element may also send the first APN-AMBR information and the second APN-AMBR information to the terminal and the MN, so that the terminal and the MN can select an AMBR information to use according to whether the terminal uses the
  • the MME network element may generate the first APN-AMBR information or the second APN-AMBR information according to the first instruction information, that is, generate one APN-AMBR information; Send a first bearer modification request to the SGW network element, the first bearer modification request includes the APN-AMBR information; the SGW network element sends a second bearer modification request to the PGW network element, and the second bearer modification request includes the APN-AMBR information; PGW The network element controls the data transmission rate according to the APN-AMBR information.
  • the MME network element sends a first bearer modification request to the SGW network element, the first bearer modification request includes the first indication information;
  • the SGW network element sends a second bearer modification request to the PGW network element, and the second bearer modification request includes the first indication Information;
  • the PGW network element determines an APN-AMBR information according to the first instruction information, and controls the data transmission rate according to the APN-AMBR information.
  • the rate adjustment system shown in FIG. 5 is applied to the MR-DC network architecture shown in FIGS. 1-3 as an example. As shown in FIG. 10, it is a schematic flowchart of a rate adjustment method provided in Embodiment 4 of the present application.
  • the AMF network element or SMF network element can be implemented by the communication device shown in FIG. 6. The method may include, but is not limited to, the following steps:
  • Step S901 the MN sends the first instruction information to the AMF network element. Accordingly, the AMF network element receives the first indication information from the MN.
  • Step S902 The AMF network element sends the first instruction information to the SMF network element. Accordingly, the SMF network element receives the first indication information from the AMF network element.
  • Step S903 The SMF network element determines the first session-AMBR information and the second session-AMBR information according to the first instruction information.
  • the first session-AMBR information is session-AMBR information corresponding to using NR access
  • the second session-AMBR information is session-AMBR information corresponding to not using NR access.
  • Step S904 The SMF network element sends a policy update request to the PCF network element. Accordingly, the PCF network element receives a policy update request from the SMF network element.
  • the policy update request includes first session-AMBR information, second session-AMBR information, and first indication information.
  • Step S905 The PCF network element determines the third session-AMBR information and the fourth session-AMBR information according to the first instruction information.
  • Step S906 The PCF network element sends a policy update response to the SMF network element. Accordingly, the SMF network element receives a policy update response from the PCF network element.
  • Step S907 The SMF network element sends a session establishment request to the UPF network element. Accordingly, the UPF network element receives a session establishment request from the SMF network element.
  • the session management request includes first session-AMBR information, second session-AMBR information, and indication information, so that the UPF network element selects a session from the first session-AMBR information and the second session-AMBR information according to the indication information.
  • AMBR information controls the data transmission rate.
  • the session management request includes the third session-AMBR information, the fourth session-AMBR information, and the indication information, so that the UPF network element selects a session from the third session-AMBR information and the fourth session-AMBR information according to the indication information.
  • AMBR information controls the data transmission rate.
  • Step S908 The SMF network element sends an N11 message to the AMF network element. Accordingly, the AMF network element receives the N11 message from the SMF network element.
  • the N11 message includes N2SM and N1SM, where N2SM includes the session identifier, the first session-AMBR, the second session-AMBR, and the fourth indication information, and N1SM includes the session identifier, the first session-AMBR, and the second session. -AMBR and instructions.
  • the N11 message may be a session establishment response.
  • the N11 message includes N2SM and N1SM, where N2SM includes the session identifier, the third session-AMBR, the fourth session-AMBR, and the fourth indication information, and N1SM includes the session identifier, the third session-AMBR, and the fourth session. -AMBR and instructions.
  • step S909 the AMF network element sends an N2 request to the MN. Accordingly, the MN receives the N2 request from the AMF network element.
  • the N2 request includes N2SM and N1SM, where N2SM includes the session identifier, the first session-AMBR, the second session-AMBR, and the fourth indication information, and N1SM includes the session identifier, the first session-AMBR, and the second session. -AMBR and instructions.
  • the N2 request includes N2SM and N1SM, where N2SM includes the session identifier, the third session-AMBR, the fourth session-AMBR, and the fourth indication information, and N1SM includes the session identifier, the third session-AMBR, and the fourth session. -AMBR and instructions.
  • Step S910 The MN determines a session-AMBR information according to whether the terminal uses the NR.
  • the MN selects one session-AMBR information from the first session-AMBR information and the second session-AMBR information according to whether the terminal uses NR, or the third session-AMBR information and the fourth session-AMBR information according to whether the terminal uses NR access. Select a session-AMBR message.
  • the MN determines whether to place the QFI on the MN or the secondary network node according to the fourth instruction information.
  • the MN triggers the RRC connection reconfiguration process, and sends the session identifier, the first session-AMBR information, and the second session-AMBR information to the terminal or sends the session identifier, the third session-AMBR information, and the fourth session-AMBR information to the terminal;
  • the terminal determines which session-AMBR information is used according to the terminal.
  • the embodiment shown in FIG. 10 is applied in a 5GSMR-DC scenario.
  • the SMF network element When a terminal suddenly uses NR access or suddenly does not use NR access, the SMF network element generates a first session according to whether the terminal uses NR access- The AMBR information and the second session-AMBR information send the first session-AMBR information and the second session-AMBR information to the UPF network element, so that the UPF network element determines which AMBR to use according to the instruction of the SMF network element.
  • the SMF network element may send the third session-AMBR information and the fourth session-AMBR information to the UPF network element, so that the UPF network element determines which AMBR to use according to the instruction of the SMF network element.
  • the SMF network element may also send the first session-AMBR information and the second session-AMBR information to the terminal and the MN, so that the terminal and the MN can select an AMBR information to use according to whether the terminal uses NR access.
  • the SMF network element may generate the first session-AMBR information or the second session-AMBR information according to the first instruction information, that is, generate a session-AMBR information;
  • a session modification request is sent to the UPF network element, and the session modification request includes the session-AMBR information, and the UPF network element controls the data transmission rate according to the session-AMBR information.
  • the SMF network element sends a session modification request to the UPF network element, and the session modification request includes the first indication information; the UPF network element determines a session-AMBR information according to the first indication information, and performs a data transmission rate based on the session-AMBR information. control.
  • FIG. 11 is a schematic diagram of a logical structure of a communication device according to an embodiment of the present application.
  • the communication device 70 may be a mobile management network in FIG. 4, or a session management network element in FIG. 5, or may be FIG. 5. Access management network element.
  • the communication device 70 may include a processing unit 701, and related functions / processes implemented by the processing unit 701 may be implemented by the processor 601 in FIG. 6 calling a computer execution instruction stored in the memory 603.
  • the processing unit 701 may include a first processing unit 7011 and a second processing unit 7012.
  • the communication device 70 may further include a transceiver unit 702, and related functions / processes implemented by the transceiver unit 702 may be implemented through the communication interface 604 in FIG.
  • the first processing unit 7011 is configured to determine whether the terminal uses access information for NR access; the second processing unit 7012 is configured to determine the first APN according to the access information -AMBR information.
  • the transceiver unit 702 is configured to receive a first message from a primary network node, where the first message includes first indication information, and the first indication information is used to indicate whether the terminal uses NR access; the first The processing unit 701 is specifically configured to determine whether the terminal uses access information for NR access according to the first instruction information.
  • the transceiver unit 702 is configured for the mobile management network element to receive a second message from the main network node, the second message includes the second indication information and the location of the terminal, and the second indication information is used to instruct the master Dual connection capability of the network node; receiving third instruction information from the terminal, the third instruction information is used to indicate the dual connection capability of the terminal;
  • the first processing unit 7011 is specifically configured to determine whether the terminal uses NR access access information according to the second instruction information, the location of the terminal, the third instruction information, and the first configuration information; wherein the first configuration information includes a tracking area identification code The dual connection capability of the tracking area corresponding to the tracking area identification code.
  • the second processing unit 7012 is specifically configured to determine the first APN-AMBR information according to the access information and the second configuration information, and the second configuration information includes using the NR to access the corresponding APN-AMBR information or Do not use NR to access the corresponding APN-AMBR information.
  • the first message further includes second APN-AMBR information
  • the second APN-AMBR information is the APN-AMBR information recommended by the main network node
  • the second processing unit 7012 is specifically configured to receive the access information according to the access information.
  • the second APN-AMBR information determine the first APN-AMBR information.
  • the transceiver unit 702 is configured to send the first APN-AMBR information to the terminal, and the first APN-AMBR information is used to control a data transmission rate.
  • the transceiver unit 702 is configured to send a first bearer management request to the serving network element.
  • the first bearer management request includes access information, so that the serving network element sends the second bearer management to the packet data network element.
  • Request, the second bearer management request includes access information, the access information is used to determine the third APN-AMBR information, and the third APN-AMBR information is used to control the data transmission rate of the packet data network element;
  • the first bearer management response includes the third APN-AMBR information.
  • the first bearer management request further includes second APN-AMBR information
  • the second bearer management request further includes second APN-AMBR information
  • the second APN-AMBR information is an APN recommended by the main network node.
  • -AMBR information, the second APN-AMBR information and the access information are used to determine the third APN-AMBR information.
  • the second bearer management response further includes fourth indication information; the first bearer management response further includes fourth indication information; the transceiver unit 702 is configured to send the fourth indication information to the primary network node, and the fourth The indication information is used to indicate whether the primary network node allocates resources of the primary network node for the bearer, or whether to allocate resources of the secondary network node for the bearer.
  • the communication device 70 may also be an MME network element in the embodiment shown in FIG. 7, which may implement the functions of the MME network element in the embodiment shown in FIG. 7.
  • FIG. 7 For detailed processes performed by each unit in the communication device 70, refer to FIG. 7.
  • the execution steps of the MME network element in the embodiment are not repeated here. Since the MME network element provided in this embodiment can execute the rate adjustment method shown in FIG. 7, the technical effects that can be obtained can refer to the embodiment shown in FIG. 7, and details are not described herein again.
  • the first processing unit 7011 is configured to determine whether the terminal uses access information for NR access; the second processing unit 7012 is configured to determine a first session according to the access information -AMBR information.
  • the transceiver management unit 702 receives a first message from the access management network element, the first message includes first indication information, and the first indication information is used to indicate whether the terminal uses NR access ;
  • the first processing unit 7011 is specifically configured to determine whether the terminal uses access information for NR access according to the first instruction information.
  • the second processing unit 7012 is specifically configured to determine the first session-AMBR information according to the access information and the second configuration information, and the second configuration information includes using the NR to access the corresponding session-AMBR information or Do not use NR to access the corresponding session-AMBR information.
  • the first message further includes second session-AMBR information
  • the second session-AMBR information is the session-AMBR information recommended by the main network node
  • the second processing unit 7012 is specifically used for a session management network element
  • the first session-AMBR information is determined according to the access information and the second session-AMBR information.
  • the transceiver unit 702 is configured to send the first session-AMBR information to the user plane network element, and the first session-AMBR information is used to control a data transmission rate.
  • the transceiver unit 702 is configured to send a policy update request to a policy management network element.
  • the policy update request includes access information and first session-AMBR information, and the access information is used by the policy management network element based on the first A session-AMBR information to determine the third session-AMBR information; receive a policy update response from the policy management network element, the policy update response includes the third session-AMBR information; and send the third session-AMBR information to the user plane network element.
  • the three session-AMBR information is used to control the data transmission rate.
  • the policy update request further includes second session-AMBR information
  • the second session-AMBR information is the session-AMBR information recommended by the main network node
  • the second session-AMBR information and access information are used for
  • the policy management network element determines the third session-AMBR information based on the first session-AMBR information.
  • the policy update response further includes fourth indication information;
  • the transceiver unit 702 is configured to send the fourth indication information to the master network node through the access management network element, and the fourth indication information is used to instruct the master network node Whether to allocate resources of the primary network node for the session quality of service flow, or whether to allocate resources of the secondary network node for the quality of service flow of the session.
  • the communication device 70 may also be an SMF network element in the embodiment shown in FIG. 8, which may implement the functions of the SMF network element in the embodiment shown in FIG. 8. For detailed processes performed by each unit in the communication device 70, refer to FIG. 8. The execution steps of the SMF network element in the embodiment are not repeated here. Since the SMF network element provided in this embodiment can execute the rate adjustment method shown in FIG. 8, the technical effects that can be obtained can refer to the embodiment shown in FIG. 8, and details are not described herein again.
  • a person of ordinary skill in the art may understand that all or part of the processes in the method of the foregoing embodiments are implemented.
  • the processes may be completed by a computer program instructing related hardware.
  • the program may be stored in a computer-readable storage medium. It may include the processes of the method embodiments described above.
  • the foregoing storage media include: ROM or random storage memory RAM, magnetic disks, or optical discs, which can store various program code media. Therefore, another embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores instructions, and when the computer-readable storage medium runs on the computer, the computer executes the methods described in the above aspects.
  • Yet another embodiment of the present application further provides a computer program product containing instructions, which when executed on a computer, causes the computer to execute the methods described in the above aspects.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing module, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted through the computer-readable storage medium.
  • the computer instructions may be transmitted from a website site, computer, server, or data center through wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) Another website site, computer, server, or data center for transmission.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes one or more available medium integration.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

本申请实施例提供一种速率调整方法及其装置、系统，其中方法可包括如下步骤：移动管理网元确定终端是否使用NR接入的接入信息，根据所述接入信息确定第一APN-AMBR信息，所述第一APN-AMBR信息用于对数据传输速率进行控制。采用本申请实施例，解决了现有技术中无法调整数据传输速率的问题，可以适应性地对数据传输速率进行调整。

Description

一种速率调整方法及其装置、系统
本申请要求于2018年6月26日提交中国国家知识产权局、申请号为201810669446.1、发明名称为“一种速率调整方法及其装置、系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域，具体涉及一种速率调整方法及其装置、系统。
背景技术
终端(例如用户设备(user equipment，UE))支持双连接(dual connectivity，DC)技术指的是终端设备可以在同一时刻接入两个基站，这两个基站中一个基站称为主基站或第一基站，另一个基站称为辅基站或第二基站。在第五代移动通信系统(5th-generation system，5GS)的网络架构中，终端设备可以同时接入两个基站，这两个基站一个5G基站(gNB)，一个是演进型基站(evolved NodeB，eNodeB或eNB)，可以将5GS中的DC称为多无线接入技术双连接(multi-radio access technology dual connectivity，MR-DC)。
在5GS MR-DC场景中，如果UE使用新空口(new radio，NR)接入gNB进行数据传输，最高速率理论值可以达到4T比特每秒(bits per second，bps)；如果UE只使用演进通用陆地无线接入网(evolved universal terrestrial radio access network，E-UTRAN)，最高速率理论值只能达到10Gbps。如果UE突然不使用NR接入gNB，而UE的数据传输速率设置得比较高，这样便会导致数据丢包；反之，如果UE突然使用NR接入gNB，而UE的数据传输速率较低，这样便会影响数据传输效率，因此需要提升UE的数据传输速率。
目前，在5GS MR-DC场景中，在UE突然使用NR接入gNB或突然不使用NR接入gNB的情况下，无法对数据传输速率进行调整。因此，如何调整数据传输速率是亟待解决的技术问题。
发明内容
本申请实施例所要解决的技术问题在于，提供一种通信方法及其装置，解决了现有技术中无法调整数据传输速率的问题，可以适应性地对数据传输速率进行调整，从而既可以避免数据丢包，也可以保证数据传输效率。
本申请实施例第一方面提供一种速率调整方法，包括：
移动管理网元确定终端是否使用NR接入的接入信息；
移动管理网元根据该接入信息确定第一接入点名称-聚合最大比特速率(access point name-aggregate maximum bit rate，APN-AMBR)信息。
本申请第一方面，应用在5GS MR-DC场景中，在终端突然使用NR接入或突然不使用NR接入的情况下，由移动管理网元根据终端是否使用NR接入来确定第一APN-AMBR信息。移动管理网元可将第一APN-AMBR信息通知至用户面网元，以便用户面网元根据第一APN-AMBR信息对终端在用户面网元上的数据传输速率进行调整，从而实现根据第一APN-AMBR信息对终端在用户面网元上的数据传输速率进行适应性地调整，进而可以避免数据丢包，还可以保证数据传输效率。
其中，接入信息用于指示终端是否使用NR接入gNB，若终端使用NR接入，则终端可以使用NR系统进行数据传输；若终端不使用NR接入，则终端不能使用NR系统进行数据传输。
其中，APN-AMBR信息可以包括APN-AMBR这个参数和APN-AMBR这个参数的值，用于对数据传输速率进行控制。APN-AMBR用于限制终端在某个接入点名称(access point name，APN)上所有非保证比特速率(non-guaranteed bit rate，non-GBR)承载的聚合最大比特速率(aggregate maximum bit rate，AMBR)，APN-AMBR的速率控制可在终端上执行，即终端可根据APN-AMBR参数的值对数据传输速率进行调整，例如，控制终端上的数据传输速率的最大值不超过APN-AMBR参数的值；速率控制也可在分组数据网元上执行，即分组数据网元可根据APN-AMBR参数的值对数据传输速率进行调整。
在一种可能的实现方式中，移动管理网元可根据主网络节点发送的第一指示信息来确定终端是否使用NR接入的接入信息，即移动管理网元接收来自主网络节点的第一消息，该第一消息携带第一指示信息，第一指示信息用于指示终端是否使用NR接入，从而移动管理网元根据第一指示信息确定出终端是否使用NR接入的接入信息，以便移动管理网元根据接入信息确定第一APN-AMBR信息。
其中，第一指示信息可以通过无线接入技术(radio access technology，RAT)类型(type)来指示。
主网络节点可在接收到移动管理网元发送的检测请求的情况下，检测终端是否使用NR接入，并将其结果通过第一指示信息告知移动管理网元，以便移动管理网元可以获知终端是否使用NR接入。
主网络节点可在移动管理网元所订阅的检测事件成功的情况下，检测终端是否使用NR接入，并将其结果通过第一指示信息告知移动管理网元，以便移动管理网元可以获知终端是否使用NR接入。
主网络节点也可主动检测终端是否使用NR接入，并将其结果通过第一指示信息告知移动管理网元，以便移动管理网元可以获知终端是否使用NR接入。
其中，主网络节点为终端双连接的两个网络节点中的一个，该主网络节点主要用于在5GS MR-DC场景中为这两个网络节点分配资源并提供数据传输。双连接的另一个网络节点可称为辅网络节点，该辅网络节点主要用于在5GS MR-DC场景中为终端提供数据传输。也可以将主网络节点称为第一网络节点，将辅网络节点称为第二网络节点。
在一种可能的实现方式中，移动管理网元可根据第二指示信息、终端的位置、第三指示信息和第一配置信息来确定终端是否使用NR接入的接入信息。其中，第二指示信息和终端的位置由主网络节点向移动管理网元发送，第二指示信息用于指示主网络节点的双连接能力，终端的位置可以是终端所属的跟踪区。第三指示信息由终端向移动管理网元发送，第三指示信息用于指示终端是否具备双连接能力，即终端是否可以同时连接至两个网络节点。
移动管理网元在主网络节点具备双连接能力和终端具备双连接能力的情况下，如果终端从不支持双连接的跟踪区进入到支持双连接的跟踪区，此时终端的位置所属的跟踪区支持双连接，移动管理网元可确定出终端使用NR接入的接入信息；若终端从支持双连接的跟踪区进入到不支持双连接的跟踪区，此时终端的位置所属的跟踪区不支持双连接，移动管理网元可确定出终端不使用NR接入的接入信息。
在一种可能的实现方式中，移动管理网元可根据接入信息和第二配置信息来确定第一APN-AMBR信息，第二配置信息包括使用NR接入对应的APN-AMBR信息或不使用NR接入对应 的APN-AMBR信息，例如，接入信息为终端使用NR接入，移动管理网元可从第二配置信息中选择NR接入对应的APN-AMBR信息，并将其作为第一APN-AMBR信息。
其中，不使用NR接入可以是终端使用E-UTRAN传输数据，没有使用NR接入网络节点。使用NR接入可以是终端使用NR传输数据。
在一种可能的实现方式中，上述第一消息还包括第二APN-AMBR信息，该第二APN-AMBR信息为主网络节点建议的APN-AMBR信息，主网络节点可根据主网络节点的实际使用情况确定建议的APN-AMBR信息。移动管理网元可根据接入信息和第二APN-AMBR信息确定第一APN-AMBR信息，即结合接入信息和第二APN-AMBR信息来确定第一APN-AMBR信息。
在一种可能的实现方式中，移动管理网元在确定第一APN-AMBR信息的情况下，可将第一APN-AMBR信息发送至终端，第一APN-AMBR信息用于终端根据第一APN-AMBR信息对数据传输速率进行控制，即终端根据第一APN-AMBR信息对终端上的数据传输速率进行调整，避免终端上的数据传输速率超过第一APN-AMBR参数的值，或提高终端上的数据传输速率，以保证数据传输效率。
在一种可能的实现方式中，移动管理网元在确定第一APN-AMBR信息的情况下，可根据第一APN-AMBR信息计算确定第一UE-AMBR信息，并将第一UE-AMBR信息发送至主网络节点，以便主网络节点可以根据第一UE-AMBR信息对终端的数据传输速率进行控制。
其中，UE-AMBR信息可以包括UE-AMBR参数和UE-AMBR参数的值，用于对数据传输速率进行控制。UE-AMBR用于限制终端的所有non-GBR承载的聚合最大比特速率，UE-AMBR的速率控制可在主网络节点上执行，即主网络节点根据UE-AMBR信息的参数的值对数据传输速率进行调整，例如，控制终端在主网络节点上的数据传输速率的最大值不超过UE-AMBR参数的值。
在一种可能的实现方式中，移动管理网元向服务网元发送第一承载管理请求，该第一承载管理请求包括接入信息；服务网元在接收到第一承载管理请求的情况下，向分组数据网元发送第二承载管理请求，该第二承载管理请求包括接入信息；分组数据网元在接收到第二承载管理请求的情况下，根据接入信息确定第三APN-AMBR信息，并根据第三APN-AMBR信息对分组数据网元的数据传输速率进行控制；分组数据网元向服务网元发送第二承载管理响应，第二承载管理响应用于响应第二承载管理请求，第二承载管理响应包括第三APN-AMBR信息；服务网元在接收到第二承载管理响应的情况下，向移动管理网元发送第一承载管理响应，该第一承载管理响应包括第三APN-AMBR信息。
移动管理网元在接收到第三APN-AMBR信息的情况下，可将第三APN-AMBR信息发送至终端，第三APN-AMBR信息用于终端根据第三APN-AMBR信息对数据传输速率进行控制，即终端根据第三APN-AMBR信息对终端上的数据传输速率进行调整，避免终端上的数据传输速率超过第三APN-AMBR参数的值，或提高终端上的数据传输速率，以保证数据传输效率。
移动管理网元在接收到第三APN-AMBR信息的情况下，可根据第三APN-AMBR信息计算确定第三UE-AMBR信息，并将第三UE-AMBR信息发送至主网络节点，以便主网络节点可以根据第三UE-AMBR信息对终端的数据传输速率进行控制。
在一种可能的实现方式中，上述第一承载管理请求和上述第二承载管理请求还包括第二APN-AMBR信息，第二APN-AMBR信息为主网络节点建议的APN-AMBR信息，第二APN-AMBR信息和接入信息用于分组数据网元来确定第三APN-AMBR信息。
在一种可能的实现方式中，上述第一承载管理请求和上述第二承载管理请求还包括第一 APN-AMBR信息，分组数据网元可第一APN-AMBR信息的基础上，根据接入信息来确定第三APN-AMBR信息；或分组数据网元在第一APN-AMBR信息的基础上，根据接入信息和第二APN-AMBR信息来确定第三APN-AMBR信息。
在一种可能的实现方式中，移动管理网元向服务网元发送第一承载管理请求，该第一承载管理请求包括接入信息；服务网元在接收到第一承载管理请求的情况下，向分组数据网元发送第二承载管理请求，该第二承载管理请求包括接入信息；分组数据网元在接收到第二承载管理请求的情况下，触发互联网协议连接接入网(Internet protocol-connectivity access network，IP-CAN)会话(session)的修改或建立流程，向策略规则网元发送IP-CAN会话管理请求，该IP-CAN会话管理请求包括接入信息；策略规则网元根据接入信息确定第三APN-AMBR信息，并向分组数据网元发送IP-CAN会话管理响应，该IP-CAN会话管理响应包括第三APN-AMBR信息；分组数据网元在接收到第三APN-AMBR信息的情况下，向服务网元发送第二承载管理响应，并根据第三APN-AMBR信息对分组数据网元上的数据传输速率进行控制，第二承载管理响应用于响应第二承载管理请求，第二承载管理响应包括第三APN-AMBR信息；服务网元在接收到第二承载管理响应的情况下，向移动管理网元发送第一承载管理响应，该第一承载管理响应包括第三APN-AMBR信息。
移动管理网元在接收到第三APN-AMBR信息的情况下，可将第三APN-AMBR信息发送至终端，第三APN-AMBR信息用于终端根据第三APN-AMBR信息对数据传输速率进行控制，即终端根据第三APN-AMBR信息对终端上的数据传输速率进行调整，避免终端上的数据传输速率超过第三APN-AMBR参数的值，或提高终端上的数据传输速率，以保证数据传输效率。
移动管理网元在接收到第三APN-AMBR信息的情况下，可根据第三APN-AMBR信息计算确定第三UE-AMBR信息，并将第三UE-AMBR信息发送至主网络节点，以便主网络节点可以根据第三UE-AMBR信息对终端的数据传输速率进行控制。
其中，承载管理请求可以是承载建立请求，也可以是承载修改请求，视具体情况而定，同理承载管理响应。在第一承载管理请求为第一承载建立请求时，第二承载管理请求为第二承载建立请求，第二承载管理响应为第二承载建立响应，第一承载管理响应为第一承载建立响应。
在一种可能的实现方式中，上述第一承载管理请求、上述第二承载管理请求和IP-CAN会话管理请求还包括第二APN-AMBR信息，第二APN-AMBR信息为主网络节点建议的APN-AMBR信息，第二APN-AMBR信息和接入信息用于策略规则网元根据第二APN-AMBR信息和接入信息来确定第三APN-AMBR信息。
在一种可能的实现方式中，上述第一承载管理请求、上述第二承载管理请求和IP-CAN会话管理请求还包括第一APN-AMBR信息，策略规则网元在第一APN-AMBR信息的基础上，根据接入信息来确定第三APN-AMBR信息；或策略规则网元在第一APN-AMBR信息的基础上，根据接入信息和第二APN-AMBR信息来确定第三APN-AMBR信息。
在一种可能的实现方式中，移动管理网元根据承载的服务质量类标识符(quality of service class identifier，QCI)确定第四指示信息，向主网络节点发送第四指示信息，第四指示信息用于指示主网络节点是否为承载分配主网络节点的资源，或是否为承载分配辅网络节点的资源，以便主网络节点确定是否为承载分配主网络节点的资源或辅网络节点的资源。
在一种可能的实现方式中，上述第一承载管理响应和上述第二承载管理响应还包括第四指示信息，移动管理网元在接收到第四指示信息的情况下，向主网络节点发送第四指示信息， 所述第四指示信息用于指示主网络节点是否为承载分配主网络节点的资源，或是否为承载分配辅网络节点的资源，以便主网络节点确定是否为承载分配主网络节点的资源或辅网络节点的资源。其中，第四指示信息可以是分组数据网元根据承载的QCI确定的，也可以是分组数据网元从策略规则网元中获取的，策略规则网元可以根据承载的QCI确定第四指示信息。
本申请实施例第二方面提供一种移动管理网元，该移动管理网元具有实现第一方面提供方法的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元。
在一种可能的实现方式中，该移动管理网元包括：第一处理单元和第二处理单元；第一处理单元，用于确定终端是否使用NR接入的接入信息；第二处理单元，用于根据接入信息确定第一APN-AMBR信息。
在一种可能的实现方式中，该移动管理网元包括：处理器、收发器和存储器，其中，收发器用于接收和发送信息，存储器中存储计算机执行指令，处理器通过总线与存储器和收发器连接，处理器执行存储器中存储的计算机执行指令，以使该移动管理网元执行以下操作：确定终端是否使用NR接入的接入信息；根据接入信息确定第一APN-AMBR信息。
基于同一发明构思，由于该移动管理网元解决问题的原理以及有益效果可以参见第一方面所述的方法以及所带来的有益效果，因此该移动管理网元的实施可以参见方法的实施，重复之处不再赘述。
本申请实施例第三方面提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
本申请实施例第四方面提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
本申请实施例第五方面提供一种速率调整方法，包括：
会话管理网元确定终端是否使用NR接入的接入信息；
会话管理网元根据接入信息确定第一会话-聚合最大比特速率session-AMBR信息。
本申请第五方面，应用在5GS MR-DC场景中，在终端突然使用NR接入或突然不使用NR接入的情况下，由会话管理网元根据终端是否使用NR接入来确定第一session-AMBR信息，会话管理网元可将第一session-AMBR信息通知至终端和/或用户面网元，以便终端和/或用户面网元根据第一session-AMBR信息对数据传输速率进行调整，从而实现根据第一session-AMBR信息对数据传输速率进行适应性地调整，进而可以避免数据丢包，还可以保证数据传输效率。
其中，session-AMBR信息可以包括session-AMBR参数和session-AMBR参数的值，用于对数据传输速率进行控制。session-AMBR用于限制终端在某个会话上所有non-GBR服务质量(quality of service，QoS)流的聚合最大比特速率，session-AMBR的速率控制可在终端上执行，即终端可根据session-AMBR参数的值对数据传输速率进行调整，例如，控制终端上的数据传输速率的最大值不超过session-AMBR参数的值；速率控制也可在用户面网元上执行，即用户面网元可根据session-AMBR参数的值对数据传输速率进行调整。
在一种可能的实现方式中，会话管理网元可根据接入管理网元发送的第一指示信息来确定终端是否使用NR接入的接入信息，即会话管理网元接收来自接入管理网元的第一消息，第一消息包括第一指示信息，第一指示信息用于指示终端是否使用NR接入，从而根据第一指示信息确定终端是否使用NR接入的接入信息，以便移动管理网元根据接入信息确定第一 session-AMBR信息。
其中，第一指示信息可以通过RAT类型来指示。
接入管理网元可接收来自主网络节点的第一指示信息，并将第一指示信息通过第一消息发送至会话管理网元，以便会话管理网元获知第一指示信息。
接入管理网元可根据第二指示信息、终端的位置、第三指示信息和第一配置信息来确定终端是否使用NR接入的第一指示信息。其中，第二指示信息和终端的位置由主网络节点向接入管理网元发送，第二指示信息用于指示主网络节点的双连接能力，终端的位置可以是终端所属的跟踪区。第三指示信息由终端向接入管理网元发送，第三指示信息用于指示终端是否具备双连接能力，即终端是否可以同时连接至两个网络节点。
接入管理网元在主网络节点具备双连接能力和终端具备双连接能力的情况下，如果终端从不支持双连接的跟踪区进入到支持双连接的跟踪区，此时终端的位置所属的跟踪区支持双连接，接入管理网元可确定出终端使用NR接入的第一指示信息；若终端从支持双连接的跟踪区进入到不支持双连接的跟踪区，此时终端的位置所属的跟踪区不支持双连接，接入管理网元可确定出终端不使用NR接入的第一指示信息。接入管理网元在确定出终端是否使用NR接入的第一指示信息的情况下，将第一指示信息通过第一消息发送至会话管理网元，以便会话管理网元获知第一指示信息。
在一种可能的实现方式中，会话管理网元可根据接入信息和第二配置信息来确定第一session-AMBR信息，第二配置信息包括使用NR接入对应的session-AMBR信息或不使用NR接入对应的session-AMBR信息。
在一种可能的实现方式中，上述第一消息还包括第二session-AMBR信息，第二session-AMBR信息为主网络节点建议的session-AMBR信息，主网络节点可根据主网络节点的实际使用情况确定建议的session-AMBR信息。会话管理网元可根据接入信息和第二session-AMBR信息确定第一session-AMBR信息，即结合接入信息和第二session-AMBR信息来确定第一session-AMBR信息。
在一种可能的实现方式中，会话管理网元在确定第一session-AMBR信息的情况下，可将第一session-AMBR信息发送至用户面网元，第一session-AMBR信息用于用户面网元根据第一session-AMBR信息对数据传输速率进行控制，即用户面网元根据第一session-AMBR信息对终端在用户面网元上的数据传输速率进行调整，避免终端在用户面网元上的数据传输速率超过第一session-AMBR参数的值，或提高终端在用户面网元上的数据传输速率，以保证数据传输效率。
在一种可能的实现方式中，会话管理网元在确定第一session-AMBR信息的情况下，可通过接入管理网元将第一session-AMBR信息发送至终端，即会话管理网元向接入管理网元发送第一session-AMBR信息，接入管理网元向终端发送第一session-AMBR信息，终端根据第一session-AMBR信息对其上的session-AMBR信息进行更新。
若会话管理网元之前通过接入管理网元向终端发送的session-AMBR信息中session-AMBR这个参数的值较大，例如，大于当前所确定的第一session-AMBR信息中第一session-AMBR这个参数的值，那么会话管理网元可不将当前所确定的第一session-AMBR信息发送至终端，终端可不对数据传输速率进行调整。
会话管理网元也可通过接入管理网元将第一session-AMBR信息发送至主网络节点，即会话管理网元向接入管理网元发送第一session-AMBR信息，接入管理网元向主网络节点发送第 一session-AMBR信息，主网络节点根据第一session-AMBR信息对其上的session-AMBR信息进行更新，并根据第一session-AMBR信息计算确定第一UE-AMBR信息，以便主网络节点可以根据第一UE-AMBR信息对数据传输速率进行控制。
其中，UE-AMBR信息可以包括UE-AMBR参数和UE-AMBR参数的值，用于对数据传输速率进行控制。UE-AMBR用于限制终端的所有non-GBRQoS流的聚合最大比特速率，UE-AMBR的速率控制可在主网络节点上执行，即主网络节点根据UE-AMBR信息的参数的值对其数据传输速率进行调整，例如，控制终端在主网络节点上的数据传输速率的最大值不超过UE-AMBR参数的值。
在一种可能的实现方式中，会话管理网元向策略管理网元发送策略更新请求，策略更新请求包括接入信息；策略管理网元根据接入信息确定第三session-AMBR信息，并向会话管理网元发送策略更新响应，该策略更新响应包括第三session-AMBR信息。
策略更新请求还可以包括第一session-AMBR信息，策略管理网元基于第一session-AMBR信息根据接入信息确定第三session-AMBR信息，即策略管理网元在第一session-AMBR信息的基础上，根据接入信息对第一session-AMBR信息进行调整，从而得到第三session-AMBR信息。
会话管理网元在接收到第三session-AMBR信息的情况下，向用户面网元发送第三session-AMBR信息，第三session-AMBR信息用于用户面网元根据第三session-AMBR信息对数据传输速率进行控制。
会话管理网元在接收到第三session-AMBR信息的情况下，可通过接入管理网元将第三session-AMBR信息发送至终端，即会话管理网元向接入管理网元发送第三session-AMBR信息，接入管理网元向终端发送第三session-AMBR信息，终端根据第三session-AMBR信息对其上的session-AMBR信息进行更新。
会话管理网元在接收到第三session-AMBR信息的情况下，也可通过接入管理网元将第三session-AMBR信息发送至主网络节点，即会话管理网元向接入管理网元发送第三session-AMBR信息，接入管理网元向主网络节点第三session-AMBR信息，主网络节点根据第三session-AMBR信息对其上的session-AMBR信息进行更新，可根据第三session-AMBR信息计算确定第三UE-AMBR信息，以便主网络节点可以根据第三UE-AMBR信息对数据传输速率进行控制。
在一种可能的实现方式中，上述策略更新请求还包括第二session-AMBR信息，第二session-AMBR信息为主网络节点建议的session-AMBR信息，主网络节点可根据主网络节点的实际使用情况确定建议的session-AMBR信息。第二session-AMBR信息和接入信息用于策略管理网元确定第三session-AMBR信息，即策略管理网元可结合接入信息和第二session-AMBR信息来确定第三session-AMBR信息。
在一种可能的实现方式中，上述策略更新请求还包括第一session-AMBR信息，以便策略管理网元在第一session-AMBR信息的基础上，根据接入信息来确定第三session-AMBR信息或根据接入信息和第二session-AMBR信息来确定第三session-AMBR信息。
在一种可能的实现方式中，会话管理网元根据5G QoS指示符(5G QoS indicator，5QI)确定第四指示信息，会话管理网元还可通过接入管理网元向主网络节点发送第四指示信息，第四指示信息用于指示主网络节点是否为会话的服务质量流分配主网络节点的资源，或是否为会话的服务质量流分配辅网络节点的资源，即为会话的服务质量流分配主网络节点的资源 还是辅网络节点的资源，以便主网络节点确定为会话的服务质量流分配主网络节点的资源还是辅网络节点的资源。
在一种可能的实现方式中，上述策略更新响应还包括第四指示信息，第四指示信息为策略管理网元根据5QI确定的。会话管理网元还可通过接入管理网元向主网络节点发送第四指示信息，第四指示信息用于指示主网络节点是否为会话的服务质量流分配主网络节点的资源，或是否为会话的服务质量流分配辅网络节点的资源，即为会话的服务质量流分配主网络节点的资源还是辅网络节点的资源，以便主网络节点确定为会话的服务质量流分配主网络节点的资源还是辅网络节点的资源。
本申请实施例第六方面提供一种会话管理网元，该会话管理网元具有实现第五方面提供方法的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元。
在一种可能的实现方式中，该会话管理网元包括：第一处理单元和第二处理单元；第一处理单元，用于确定终端是否使用NR接入的接入信息；第二处理单元，用于根据接入信息确定第一session-AMBR信息。
在一种可能的实现方式中，该会话管理网元包括：处理器、收发器和存储器，其中，收发器用于接收和发送信息，存储器中存储计算机执行指令，处理器通过总线与存储器和收发器连接，处理器执行存储器中存储的计算机执行指令，以使该会话管理网元执行以下操作：确定终端是否使用NR接入的接入信息；根据接入信息确定第一session-AMBR信息。
基于同一发明构思，由于该会话管理网元解决问题的原理以及有益效果可以参见第五方面所述的方法以及所带来的有益效果，因此该会话管理网元的实施可以参见方法的实施，重复之处不再赘述。
本申请实施例第七方面提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第五方面所述的方法。
本申请实施例第八方面提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第五方面所述的方法。
本申请实施例第九方面，提供一种速率调整方法，包括：
移动管理网元确定终端是否使用NR接入的接入信息；
移动管理网元根据接入信息生成第一APN-AMBR信息和第二APN-AMBR信息，第一APN-AMBR信息为使用NR接入对应的APN-AMBR信息，第二APN-AMBR为不使用NR接入对应的APN-AMBR信息。
本申请第九方面，应用在5GS MR-DC场景中，在终端突然使用NR接入或突然不使用NR接入的情况下，移动管理网元根据终端是否使用NR接入来生成第一APN-AMBR信息和第二APN-AMBR信息，以便终端、主网络节点可以根据终端是否使用NR接入来选择一个AMBR信息使用，以便分组数据网元根据移动管理网元的指示确定使用哪一个AMBR。
在一种可能的实现方式中，移动管理网元在生成第一APN-AMBR信息和第二APN-AMBR信息的情况下，根据第一APN-AMBR信息和第二APN-AMBR信息计算得到第一UE-AMBR信息和第二UE-AMBR信息，第一UE-AMBR信息为使用NR接入对应的UE-AMBR信息，第二UE-AMBR信息为不使用NR接入对应的UE-AMBR信息；移动管理网元向主网络节点发送第一UE-AMBR信息和第二UE-AMBR信息，以使主网络节点根据终端是否使用NR接入从第一UE-AMBR信息和第二UE-AMBR信息中选择一个UE-AMBR信息，并根据所选择的UE-AMBR信息对数据传输速率进行 控制。
在一种可能的实现方式中，移动管理网元向服务网元发送第一承载建立请求，第一承载请求包括第一APN-AMBR信息、第二APN-AMBR信息和接入信息；服务网元向分组数据网元发送第二承载建立请求，第二承载建立请求包括第一APN-AMBR信息、第二APN-AMBR信息和接入信息；分组数据网元根据接入信息对第一APN-AMBR信息、第二APN-AMBR信息进行调整，得到第三APN-AMBR信息和第四APN-AMBR信息；分组数据网络向服务网元发送第二承载建立响应，第二承载建立响应包括第三APN-AMBR信息和第四APN-AMBR信息；服务网元向移动管理网元发送第一承载建立响应，第一承载建立响应包括第三APN-AMBR信息和第四APN-AMBR信息；移动管理网元根据第三APN-AMBR信息和第四APN-AMBR信息计算得到第三UE-AMBR信息和第四UE-AMBR信息，第三UE-AMBR信息为使用NR接入对应的UE-AMBR信息，第四UE-AMBR信息为不使用NR接入对应的UE-AMBR信息；移动管理网元向主网络节点发送第三UE-AMBR信息和第四UE-AMBR信息，以使主网络节点根据终端是否使用NR接入从第三UE-AMBR信息和第四UE-AMBR信息中选择一个UE-AMBR信息，并根据所选择的UE-AMBR信息对数据传输速率进行控制。
在一种可能的实现方式中，第一承载建立请求和第二承载建立请求还包括第五APN-AMBR信息，第五APN-AMBR信息为主网络节点建议的APN-AMBR信息，第五APN-AMBR信息和接入信息用于确定第三APN-AMBR信息和第四APN-AMBR信息，例如用于分组数据网元根据第五APN-AMBR信息和接入信息，对第一APN-AMBR信息、第二APN-AMBR信息进行调整，得到第三APN-AMBR信息和第四APN-AMBR信息。
本申请实施例第十方面提供一种移动管理网元，该移动管理网元具有实现第九方面提供方法的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元。
在一种可能的实现方式中，该移动管理网元包括：第一处理单元和第二处理单元；第一处理单元，用于确定终端是否使用NR接入的接入信息；第二处理单元，用于根据接入信息生成第一APN-AMBR信息和第二APN-AMBR信息。
在一种可能的实现方式中，该移动管理网元包括：处理器、收发器和存储器，其中，收发器用于接收和发送信息，存储器中存储计算机执行指令，处理器通过总线与存储器和收发器连接，处理器执行存储器中存储的计算机执行指令，以使该移动管理网元执行以下操作：确定终端是否使用NR接入的接入信息；根据接入信息生成第一APN-AMBR信息和第二APN-AMBR信息。
基于同一发明构思，由于该移动管理网元解决问题的原理以及有益效果可以参见第九方面所述的方法以及所带来的有益效果，因此该移动管理网元的实施可以参见方法的实施，重复之处不再赘述。
本申请实施例第十一方面提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第九方面所述的方法。
本申请实施例第十二方面提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第九方面所述的方法。
本申请实施例第十三方面提供一种速率调整方法，包括：
会话管理网元确定终端是否使用NR接入的接入信息；
会话管理网元根据接入信息生成第一session-AMBR信息和第二session-AMBR信息，第 一session-AMBR信息为使用NR接入对应的session-AMBR信息，第二session-AMBR信息为不使用NR接入对应的session-AMBR信息。
本申请第十三方面，应用在5GS MR-DC场景中，在终端突然使用NR接入或突然不使用NR接入的情况下，会话管理网元根据终端是否使用NR接入来生成第一session-AMBR信息和第二session-AMBR信息，以便终端、主网络节点可以根据终端是否使用NR接入来选择一个AMBR信息使用，以便用户面网元根据移动管理网元的指示确定使用哪一个AMBR。
在一种可能的实现方式中，会话管理网元在生成第一session-AMBR信息和第二session-AMBR信息的情况下，向用户面网元发送会话管理请求，会话管理请求包括第一session-AMBR信息、第二session-AMBR信息和指示信息，以使用户面网元根据指示信息从第一session-AMBR信息和第二session-AMBR信息中选择一个session-AMBR信息对数据传输速率进行控制。
在一种可能的实现方式中，会话管理网元通过接入管理网元向主网络节点发送第一消息，第一消息包括第一session-AMBR信息和第二session-AMBR信息，第一session-AMBR信息和第二session-AMBR信息用于主网络节点计算UE-AMBR和第二UE-AMBR，并根据终端是否使用NR接入从第一UE-AMBR信息和第二UE-AMBR信息中选择一个UE-AMBR信息，并根据所选择的UE-AMBR信息对数据传输速率进行控制。
在一种可能的实现方式中，会话管理网元向策略管理网元发送策略更新请求，策略更新请求包括第一session-AMBR信息、第二session-AMBR信息和接入信息，接入信息用于策略管理网元确定第三session-AMBR信息和第四session-AMBR信息；会话管理网元接收来自策略管理网元的策略更新响应，策略更新响应包括第三session-AMBR信息和第四session-AMBR信息；会话管理网元向用户面网元发送会话管理请求，会话管理请求包括第三session-AMBR信息、第四session-AMBR信息和指示信息，以使用户面网元根据指示信息从第三session-AMBR信息和第四session-AMBR信息中选择一个session-AMBR信息对数据传输速率进行控制。
在一种可能的实现方式中，策略更新请求还包括第五session-AMBR信息，第五session-AMBR信息为主网络节点建议的session-AMBR信息，第五session-AMBR信息和接入信息用于策略管理网元确定第三session-AMBR信息和第四session-AMBR信息。
在一种可能的实现方式中，会话管理网元通过接入管理网元向主网络节点发送第一消息，第一消息包括第三session-AMBR信息和第四session-AMBR信息，第三session-AMBR信息和第四session-AMBR信息用于主网络节点计算第三UE-AMBR和第四UE-AMBR，并根据终端是否使用NR接入从第三UE-AMBR信息和第四UE-AMBR信息中选择一个UE-AMBR信息，并根据所选择的UE-AMBR信息对数据传输速率进行控制。
本申请实施例第十四方面提供一种会话管理网元，该会话管理网元具有实现第十三方面提供方法的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元。
在一种可能的实现方式中，该会话管理网元包括：第一处理单元和第二处理单元；第一处理单元，用于确定终端是否使用NR接入的接入信息；第二处理单元，用于根据接入信息生成第一session-AMBR信息和第一session-AMBR信息。
在一种可能的实现方式中，该会话管理网元包括：处理器、收发器和存储器，其中，收发器用于接收和发送信息，存储器中存储计算机执行指令，处理器通过总线与存储器和收发 器连接，处理器执行存储器中存储的计算机执行指令，以使该会话管理网元执行以下操作：确定终端是否使用NR接入的接入信息；根据接入信息生成第一session-AMBR信息和第一session-AMBR信息。
基于同一发明构思，由于该会话管理网元解决问题的原理以及有益效果可以参见第十三方面所述的方法以及所带来的有益效果，因此该会话管理网元的实施可以参见方法的实施，重复之处不再赘述。
本申请实施例第十五方面提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第十三方面所述的方法。
本申请实施例第十六方面提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第十三方面所述的方法。
本申请实施例第十七方面，提供一种速率调整系统，包括移动管理网元和主网络节点；
主网络节点，用于向移动管理网元发送第一消息；
移动管理网元，用于接收第一消息，第一消息包括第一指示信息，第一指示信息用于指示所述终端是否使用NR接入；根据所述第一指示信息确定所述终端是否使用NR接入的接入信息；根据所述接入信息确定第一APN-AMBR信息。
本申请第十七方面提供的速率调整系统，应用在5GS MR-DC场景中，由主网络节点向移动管理网元发送第一指示信息，来指示终端是否使用NR接入，移动管理网元根据终端是否使用NR接入来确定第一APN-AMBR信息。移动管理网元可将第一APN-AMBR信息通知至用户面网元，以便用户面网元根据第一APN-AMBR信息对终端在用户面网元上的数据传输速率进行调整，从而实现根据第一APN-AMBR信息对终端在用户面网元上的数据传输速率进行适应性地调整，进而可以避免数据丢包，还可以保证数据传输效率。
在一种可能的实现方式中，该速率调整系统还包括服务网元和分组数据网元；
服务网元接收来自移动管理网元的第一承载管理请求，该第一承载管理请求包括接入信息，向分组数据网元发送第二承载管理请求，该第二承载管理请求包括接入信息；分组数据网元在接收到第二承载管理请求的情况下，根据接入信息确定第三APN-AMBR信息，并根据第三APN-AMBR信息对分组数据网元的数据传输速率进行控制；分组数据网元向服务网元发送第二承载管理响应，第二承载管理响应用于响应第二承载管理请求，第二承载管理响应包括第三APN-AMBR信息；服务网元在接收到第二承载管理响应的情况下，向移动管理网元发送第一承载管理响应，该第一承载管理响应包括第三APN-AMBR信息。
移动管理网元可将第三APN-AMBR信息通知至用户面网元，以便用户面网元根据第三APN-AMBR信息对终端在用户面网元上的数据传输速率进行调整，从而实现根据第三APN-AMBR信息对终端在用户面网元上的数据传输速率进行适应性地调整。
在一种可能的实现方式中，该速率调整系统还包括服务网元、分组数据网元和策略规则网元；
服务网元接收来自移动管理网元的第一承载管理请求，该第一承载管理请求包括接入信息，向分组数据网元发送第二承载管理请求，该第二承载管理请求包括接入信息；分组数据网元在接收到第二承载管理请求的情况下，触发IP-CAN会话的修改或建立流程，向策略规则网元发送IP-CAN会话管理请求，该IP-CAN会话管理请求包括接入信息；策略规则网元根据接入信息确定第三APN-AMBR信息，并向分组数据网元发送IP-CAN会话管理响应，该IP-CAN会话管理响应包括第三APN-AMBR信息；分组数据网元在接收到第三APN-AMBR信息的情况下， 向服务网元发送第二承载管理响应，并根据第三APN-AMBR信息对分组数据网元上的数据传输速率进行控制，第二承载管理响应用于响应第二承载管理请求，第二承载管理响应包括第三APN-AMBR信息；服务网元在接收到第二承载管理响应的情况下，向移动管理网元发送第一承载管理响应，该第一承载管理响应包括第三APN-AMBR信息。
移动管理网元可将第三APN-AMBR信息通知至用户面网元，以便用户面网元根据第三APN-AMBR信息对终端在用户面网元上的数据传输速率进行调整，从而实现根据第三APN-AMBR信息对终端在用户面网元上的数据传输速率进行适应性地调整。
本申请实施例第十八方面，提供一种速率调整系统，包括接入管理网元和会话管理网元；
接入管理网元，用于获取第一指示信息，第一指示信息用于指示终端是否使用NR接入；
会话管理网元，用于接收来自接入管理网元的第一消息，第一消息包括第一指示信息；根据第一指示信息确定第一session-AMBR信息。
本申请第十八方面提供的速率调整系统，应用在5GS MR-DC场景中，接入管理网元获取终端是否使用NR接入的第一指示信息，并将其发送至会话管理网元，会话管理网元根据第一指示信息确定第一session-AMBR信息。会话管理网元可将第一session-AMBR信息通知至终端和/或用户面网元，以便终端和/或用户面网元根据第一session-AMBR信息对数据传输速率进行调整，从而实现根据第一session-AMBR信息对数据传输速率进行适应性地调整，进而可以避免数据丢包，还可以保证数据传输效率。
在一种可能的实现方式中，该速率调整系统还包括主网络节点；
主网络节点向接入管理网元发送第一指示信息，从而接入管理网元获取到第一指示信息，并将第一指示信息通过第一消息发送至会话管理网元，以便会话管理网元获知第一指示信息。
在一种可能的实现方式中，接入管理网元可根据第二指示信息、终端的位置、第三指示信息和第一配置信息来确定终端是否使用NR接入的第一指示信息。其中，第二指示信息和终端的位置由主网络节点向接入管理网元发送，第二指示信息用于指示主网络节点的双连接能力，终端的位置可以是终端所属的跟踪区。第三指示信息由终端向接入管理网元发送，第三指示信息用于指示终端是否具备双连接能力。
在一种可能的实现方式中，该速率调整系统还包括策略管理网元；
策略管理网元接收来自会话管理网元的策略更新请求，策略更新请求包括接入信息；根据接入信息确定第三session-AMBR信息，并向会话管理网元发送策略更新响应，该策略更新响应包括第三session-AMBR信息。
会话管理网元可将第三session-AMBR信息通知至终端和/或用户面网元，以便终端和/或用户面网元根据第三session-AMBR信息对数据传输速率进行调整，从而实现根据第三session-AMBR信息对数据传输速率进行适应性地调整，进而可以避免数据丢包，还可以保证数据传输效率。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1为5GS中的一种MR-DC网络架构示意图；
图2为5GS中的另一种MR-DC网络架构示意图；
图3为5GS中的又一种MR-DC网络架构示意图；
图4为本申请实施例提供的一种速率调整系统的网络架构示意图；
图5为本申请实施例提供的另一种速率调整系统的网络架构示意图；
图6为本申请实施例提供的通信设备的硬件结构示意图；
图7为本申请实施例一提供的速率调整方法的流程示意图；
图8为本申请实施例二提供的速率调整方法的流程示意图；
图9为本申请实施例三提供的速率调整方法的流程示意图；
图10为本申请实施例四提供的速率调整方法的流程示意图；
图11为本申请实施例提供的通信设备的逻辑结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。其中，在本申请的描述中，除非另有说明，“/”表示前后关联的对象是一种“或”的关系，例如，A/B可以表示A或B；本申请中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A,B可以是单数或者复数。并且，在本申请的描述中，除非另有说明，“多个”是指两个或多于两个。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
此外，本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
在5GS中，存在着三种MR-DC网络架构，可分别参见图1-图3所示。
请参见图1，为5GS中的一种MR-DC网络架构示意图，为E-UTRAN-NR双连接(EN-DC)网络架构。在这种网络架构中，主网络节点即主基站，为eNB；辅网络节点即辅基站，为gNB；核心网节点包括控制面网元，控制面网元可以为移动性管理实体(mobility management entity，MME)网元。主网络节点与MME网元之间存在S1-MME信令面接口，主网络节点与辅网络节点之间存在X2-C信令面接口和X2-U用户面接口，主网络节点与服务网元之间存在S1-U用户面接口，辅网络节点与服务网元之间存在S1-U用户面接口。其中，服务网元可以为服务网关(serving gateway，SGW)网元。
请参见图2，为5GS中的另一种MR-DC网络架构示意图，为下一代无线接入网(next generation radio access network，NG-RAN)E-UTRAN-NR双连接(NGEN-DC)网络架构。在这种网络架构中，主网络节点即主基站，为eNB；辅网络节点即辅基站，为gNB；核心网节点包括控制面网元，控制面网元可以为(access and mobility management function，AMF)网元。主网络节点与AMF网元之间存在N2信令面接口，主网络节点与辅网络节点之间存在Xn-C信令面接口和Xn-U用户面接口，主网络节点与用户面网元之间存在N3用户面接口，辅 网络节点与用户面网元之间存在N3用户面接口。其中，用户面网元可以为用户面功能(user plane function，UPF)网元。
请参见图3，为5GS中的又一种MR-DC网络架构示意图，为NR E-UTRAN双连接(NE-DC)网络架构。在这种网络架构中，主网络节点即主基站，为gNB；辅网络节点即辅基站，为eNB；核心网节点包括控制面网元，控制面网元可以为AMF网元。主网络节点与AMF网元之间存在N2信令面接口，主网络节点与辅网络节点之间存在Xn-C信令面接口和Xn-U用户面接口，主网络节点与用户面网元之间存在N3用户面接口，辅网络节点与用户面网元之间存在N3用户面接口。其中，用户面网元可以为UPF网元。
需要说明的是，图1-图3中的各个网元之间的接口名字只是一个示例，具体实现中接口名字可能为其他名字，本申请实施例对此不作具体限定。
在承载或者会话建立过程中，主网络节点负责分配承载或者会话的无线接入网(radio access network，RAN)侧资源，主网络节点可以将主网络节点的资源分配给承载或会话，也可以将辅网络节点的资源分配给承载或会话。承载或者会话建立完成后，核心网控制面网元不知道承载或者会话在RAN侧资源的提供方是主网络节点还是辅网络节点。
如果5GS MR-DC的控制面在4G核心网，控制UE数据传输速率的参数包括APN-AMBR和UE-AMBR。其中，APN-AMBR的速率控制在分组数据网络网关(packet data network gateway，PGW)网元和UE上执行，用于限制UE在某个APN上所有Non-GBR承载的聚合最大比特速率。其中，UE-AMBR的速率控制在RAN上执行，用于限制UE的所有Non-GBR承载的聚合最大比特速率。
如果5GS MR-DC的控制面在5G核心网，控制UE数据传输速率的参数包括session-AMBR和UE-AMBR。其中，session-AMBR的速率控制在UPF网元和UE上执行，用于限制UE在某个会话上所有Non-GBR QoS流的聚合最大比特速率。其中，UE-AMBR的速率控制在RAN上执行，用于限制UE的所有Non-GBR QoS流的聚合最大比特速率。
如果满足不了保证比特速率(guaranteed bit rate，GBR)承载和QoS流的传输速率要求，RAN会释放GBR承载和QoS流的资源。如速率突然降低，低于GBR/保证流比特速率(guaranteed flow bit rate，GFBR)或者速率突然升高，高于最大比特速率(maximum bit rate，MBR)/最大流比特速率(maximum flow bit rate，MFBR)，都导致GBR承载和QoS流的释放。
目前，在5GS MR-DC场景中，在UE突然使用NR接入gNB或突然不使用NR接入gNB的情况下，无法对数据传输速率进行调整。鉴于此，本申请实施例提供一种速率调整方法及其装置、系统，可以适应性地对数据传输速率进行调整，从而既可以避免数据丢包，也可以保证数据传输效率。
图4和图5为本申请实施例提供的两种速率调整系统的网络架构示意图，图4所示的速率调整系统可以实现对承载的数据传输速率的调整，图5所示的速率调整系统可以实现对会话的数据传输速率的调整。
请参见图4，为本申请实施例提供的一种速率调整系统的网络架构示意图，该速率调整系统可以包括移动管理网元101和主网络节点102。
其中，移动管理网元101可以是MME网元，MME网元负责接入控制和移动性管理。主网络节点102，负责分配承载的RAN侧资源，该RAN侧资源可以来自主网络节点102，也可以来自辅网络节点。
应用在本申请实施例中，移动管理网元101用于确定终端是否使用NR接入的接入信息，并根据接入信息确定第一APN-AMBR信息。
移动管理网元101可用于接收来自主网络节点102的第一指示信息，第一指示信息用于指示终端是否使用NR接入，从而移动管理网元101可根据第一指示信息来确定终端是否使用NR使用的接入信息。应用在本申请实施例中，主网络节点102用于向移动管理网元发送第一指示信息。
移动管理网元101可用于根据一些信息自主确定终端是否使用NR接入的接入信息，例如，移动管理网元101根据第二指示信息、终端的位置、第三指示信息和第一配置信息来确定终端是否使用NR接入。其中，第二指示信息和终端的位置由主网络节点102向移动管理网元101发送，第二指示信息用于指示主网络节点的双连接能力，终端的位置可以是终端所属的跟踪区。第三指示信息由终端向移动管理网元101发送，用于指示终端的双连接能力。第一配置信息包括跟踪区识别码和所述跟踪区识别码对应的跟踪区的双连接能力，可以是运营商配置的。应用在本申请实施例中，主网络节点102还用于向移动管理网元101发送第二指示信息和终端的位置。
移动管理网元101可用于根据接入信息和第二APN-AMBR信息来确定第一APN-AMBR信息。其中，第二APN-AMBR信息为主网络节点102建议的APN-AMBR信息，主网络节点102将第二APN-AMBR信息发送至移动管理网元101。主网络节点102可将第二APN-AMBR信息和第一指示信息携带在同一消息中发送至移动管理网元101，例如携带在第一消息中。
移动管理网元101还用于向终端发送第一APN-AMBR信息，以便终端根据第一APN-AMBR信息对数据传输速率进行控制。
在一种可能的实现方式中，图4所示的速率调整系统还包括服务网元103和分组数据网元104。服务网元103可以是SGW网元，SGW网元在MME网元的控制下进行数据包的路由和转发，将接收到的数据转发给指定的PGW网元。分组数据网元可以是PGW网元，PGW网元负责会话和承载管理。
应用在本申请实施例中，服务网元103用于接收来自移动管理网元101的第一承载管理请求，第一承载管理请求包括接入信息，向分组数据网元104发送第二承载管理请求，第二承载管理请求包括接入信息；分组数据网元104在接收到第二承载管理请求时，根据第一接入信息确定第三APN-AMBR信息，第三APN-AMBR信息用于分组数据网元104对数据传输速率进行控制，并向服务网元103发送第二承载管理响应，第二承载管理响应包括第三APN-AMBR信息；服务网元103在接收到第二承载管理响应时，向移动管理网元101发送第一承载管理响应，第一承载管理响应包括第三APN-AMBR信息；移动管理网元101在接收到第一承载管理响应时，可向终端发送第三APN-AMBR信息，以便终端根据第三APN-AMBR信息对数据传输速率进行控制。
上述第一承载管理请求可以为第一承载建立请求或第一承载修改请求，同理第二承载管理请求、第一承载管理响应和第二承载管理响应。需要说明的是，在第一承载管理请求为第一承载建立请求时，第二承载管理请求为第二承载建立请求，第一承载管理响应为第一承载建立响应，第二承载管理响应为第二承载建立响应。
上述第一承载管理请求和上述第二承载管理请求还包括上述第二APN-AMBR信息，分组数据网元104还用于根据第二APN-AMBR信息和接入信息来确定第三APN-AMBR信息。
在一种可能的实现方式中，图4所示的速率调整系统还包括服务网元103、分组数据网 元104和策略规则网元105。服务网元103可以是SGW网元，SGW网元在MME网元的控制下进行数据包的路由和转发，将接收到的数据转发给指定的PGW网元。分组数据网元可以是PGW网元，PGW网元负责会话和承载管理。策略规则网元105可以是策略和计费规则功能(policy and charging rules function，PCRF)网元，包含策略控制决策和基于流计费控制的功能。
应用在本申请实施例中，服务网元103用于接收来自移动管理网元101的第一承载管理请求，第一承载管理请求包括接入信息，向分组数据网元104发送第二承载管理请求，第二承载管理请求包括接入信息；分组数据网元104在接收到第二承载管理请求时，向策略规则网元105发送IP-CAN会话管理请求，IP-CAN会话管理请求包括接入信息；策略规则网元105根据第一接入信息确定第三APN-AMBR信息，第三APN-AMBR信息用于分组数据网元104对数据传输速率进行控制，并向分组数据网元104发送IP-CAN会话管理响应，IP-CAN会话管理响应包括第三APN-AMBR信息；分组数据网元104在接收到IP-CAN会话管理响应时，向服务网元103发送第二承载管理响应，第二承载管理响应包括第三APN-AMBR信息；服务网元103在接收到第二承载管理响应时，向移动管理网元101发送第一承载管理响应，第一承载管理响应包括第三APN-AMBR信息；移动管理网元101在接收到第一承载管理响应时，可向终端发送第三APN-AMBR信息，以便终端根据第三APN-AMBR信息对数据传输速率进行控制。
上述IP-CAN会话管理请求可以为IP-CAN会话建立请求或IP-CAN会话修改请求，同理IP-CAN会话管理响应。需要说明的是，在IP-CAN会话管理请求为IP-CAN会话建立请求时，IP-CAN会话管理响应可以为IP-CAN会话建立响应。
上述第一承载管理请求、上述第二承载管理请求和IP-CAN会话管理请求还包括上述第二APN-AMBR信息，策略规则网元105还用于根据第二APN-AMBR信息和接入信息来确定第三APN-AMBR信息。
需要说明的是，图4的主网络节点、移动管理网元、服务网元、分组数据网元和策略规则网元等仅是一个名字，名字对设备本身不构成限定。在5G网络以及未来其它的网络中，主网络节点、移动管理网元、服务网元、分组数据网元和策略规则网元所对应的网元或实体也可以是其他的名字，本申请实施例对此不作具体限定。
请参见图5，为本申请实施例提供的另一种速率调整系统的网络架构示意图，可以包括接入管理网元201和会话管理网元202。
其中，接入管理网元201可以是AMF网元，用于进行移动性和接入管理。会话管理网元202可以为会话管理功能(session management function，SMF)网元，用于对终端的会话进行管理，包括会话建立、会话修改以及会话释放。
应用在本申请实施例中，接入管理网元201用于获取第一指示信息，第一指示信息用于指示终端是否使用NR接入，向会话管理网元202发送第一消息，第一消息携带第一指示信息；会话管理网元202在接收到第一消息时，根据第一指示信息确定第一session-AMBR信息。
在一种可能的实现方式中，图5所示的速率调整系统还包括主网络节点205，负责分配承载的RAN侧资源，该RAN侧资源可以来自主网络节点102，也可以来自辅网络节点。
应用在本申请实施例中，主网络节点205用于向接入管理网元201发送第一指示信息，以便接入管理网元201可以获取第一指示信息。
主网络节点205还用于向接入管理网元201发送第二指示信息和终端的位置，以便接入管理网元201可以根据第二指示信息、终端的位置、第三指示信息和第一配置信息确定第一指示信息。其中，第二指示信息用于指示主网络节点的双连接能力，终端的位置可以是终端 所属的跟踪区。第三指示信息由终端向接入管理网元201发送，用于指示终端的双连接能力。第一配置信息包括跟踪区识别码和所述跟踪区识别码对应的跟踪区的双连接能力，可以是运营商配置的。
主网络节点205还用于向接入管理网元201发送第二session-AMBR信息，第二session-AMBR信息为主网络节点建议的session-AMBR信息。接入管理网元201在接收到第二session-AMBR信息时，可向会话管理网元202发送第二session-AMBR信息。接入管理网元201可将第二session-AMBR信息与第一指示信息携带在同一消息中发送至会话管理网元202，例如上述第一消息还包括第二session-AMBR信息。
在一种可能的实现方式中，图5所示的速率调整系统还包括用户面网元204。用户面网元204可以是UPF网元，用于对数据包进行路由/转发。
应用在本申请实施例中，用户面网元204接收来自会话管理网元202的第一session-AMBR信息，并根据第一session-AMBR信息对数据传输速率进行控制。
在一种可能的实现方式中，图5所示的速率调整系统还包括策略管理网元203，策略管理网元203可以是策略控制功能(policy control function，PCF)网元，用于提供策略规则给控制面执行。
应用在本申请实施例中，策略管理网元203接收来自会话管理网元202的策略更新请求，策略更新请求包括第一指示信息和第一session-AMBR信息，基于第一session-AMBR信息根据第一指示信息确定第三session-AMBR信息，向会话管理网元202发送策略更新响应，策略更新响应包括第三session-AMBR信息。会话管理网元202可在接收到第三session-AMBR信息时，向用户面网元发送第三session-AMBR信息，以便用户面网元根据第三session-AMBR信息对数据传输速率进行控制。
需要说明的是，图5的主网络节点、接入管理网元、会话管理网元、策略管理网元和用户面网元等仅是一个名字，名字对设备本身不构成限定。在5G网络以及未来其它的网络中，主网络节点、接入管理网元、会话管理网元、策略管理网元和用户面网元所对应的网元或实体也可以是其他的名字，本申请实施例对此不作具体限定。
可选的，图4或图5所示的速率调整系统可以应用于目前的5G网络，也可以应用于未来的其他网络，本申请实施例对此不作具体限定。
可选的，本申请实施例中所涉及到的终端(terminal)可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备；还可以包括用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handheld)、膝上型电脑(laptop computer)、无绳电话(cordless phone)或者无线本地环路(wireless local loop，WLL)台、机器类型通信(machine type communication,MTC)终端、UE，移动台(mobile station，MS)，终端设备(terminal device)或者中继用户设备等。其中，中继用户设备例如可以是5G家庭网关(residential gateway，RG)。为方便描述，本申请中，上面提到的设备统称为终端。
可选的，本申请实施例图4中的移动管理网元、或者图5中的接入管理网元或会话管理网元可以由一个设备实现，也可以由多个设备共同实现，还可以是一个设备内的一个功能模块，本申请实施例对此不作具体限定。可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是平台(例如，云平台)上实例化的虚拟 化功能。
例如，本申请实施例图4中的移动管理网元、或者图5中的接入管理网元或会话管理网元可以通过图6中的通信设备来实现。图6所示为本申请实施例提供的通信设备的硬件结构示意图。该通信设备60包括至少一个处理器601，通信线路602，存储器603以及至少一个通信接口604。
处理器601可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路602可包括一通路，在上述组件之间传送信息。
通信接口604，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。
存储器603可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路602与处理器相连接。存储器也可以和处理器集成在一起。
其中，存储器603用于存储执行本申请方案的计算机执行指令，并由处理器601来控制执行。处理器601用于执行存储器603中存储的计算机执行指令，从而实现本申请下述实施例提供的速率调整方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器601可以包括一个或多个CPU。
在具体实现中，作为一种实施例，通信设备60可以包括多个处理器。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
上述的通信设备60可以是一个通用设备或者是一个专用设备。在具体实现中，通信设备60可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant，PDA)、移动手机、平板电脑、无线终端设备、嵌入式设备或有图6中类似结构的设备。本申请实施例不限定通信设备60的类型。
下面将结合图7至图10对本申请实施例提供的速率调整方法进行具体阐述。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不作具体限定。在申请实施例中，移动管理网元以MME网元为例，服务网元以SGW网元为例，分组数据网元以PGW网元为例，策略规则网元以PCRF网元为例，接入管理网元以AMF网元为例，会话管理网元以SMF网元为例，策略管理网元以PCF为例，用户面网元以UPF网元为例进行介绍。本申请实 施例中的主网络节点可能是eNB，也可能是gNB，可将主网络节点称为主节点(master node，MN)。本申请实施例主网络节点以MN为例进行介绍。
以图4所示的速率调整系统应用于图1-图3所示的MR-DC网络架构为例，如图7所示，为本申请实施例一提供的速率调整方法的流程示意图，该方法中的MME网元可以通过图6所示的通信设备来实现。该方法可以包括但不限于如下步骤：
步骤S601，MN向MME网元发送第一指示信息。相应地，MME网元接收来自MN的第一指示信息。
其中，第一指示信息可以是双连接指示信息(DC indication)，用于指示终端是否使用NR接入。终端是否使用NR接入，即终端是否使用NR接入gNB，若终端使用NR接入，则终端可以使用NR系统进行数据传输；若终端不使用NR接入，则终端不能使用NR系统进行数据传输。
第一指示信息可以通过RAT类型来指示，例如，终端不使用NR接入，RAT类型为E-UTRAN；终端使用NR接入，RAT类型为NR。第一指示信息也可以通过指示位的值来指示，例如，该指示位的值为0，指示终端不使用NR接入；该指示位的值为1，指示终端使用NR接入。第一指示信息也可以通过承载标识和RAT类型来指示，还可以通过承载标识和指示位的值来指示。第一指示信息也可以通过会话标识和RAT类型来指示，也可以通过会话标识和指示位的值来指示。
其中，MN为终端双连接的两个网络节点中的一个，MN主要用于在5GS MR-DC场景中为这两个网络节点分配资源并提供数据传输。双连接的另一个网络节点可称为辅网络节点或第二节点(secondary node，SN)，本申请实施例辅网络节点以SN为例。
MN可通过第一消息向MME网元发送第一指示信息，即第一指示信息携带在第一消息中。第一消息可以是通知消息(notify)，也可以是其他类型的消息，在本申请实施例中不作限定。
第一消息还包括第二APN-AMBR信息，该第二APN-AMBR信息为MN建议的APN-AMBR信息，MN可根据MN的实际使用情况确定建议的APN-AMBR信息。
在一种可能的实现方式中，MN可在接收到MME网元发送的检测请求的情况下，检测终端是否使用NR接入，并将其结果通过第一指示信息告知MME网元，以便MME网元可以获知终端是否使用NR接入。
在一种可能的实现方式中，MN可在MME网元所订阅的检测事件成功的情况下，检测终端是否使用NR接入，并将其结果通过第一指示信息告知MME网元，以便MME网元可以获知终端是否使用NR接入。
在一种可能的实现方式中，MN也可主动检测终端是否使用NR接入，并将其结果通过第一指示信息告知MME网元，以便MME网元可以获知终端是否使用NR接入。此时，第一指示信息可携带在初始终端消息(Initial UE Message)，下行非接入层传输(Uplink NAS Transport)消息，路径转换请求(Path Switch Request)消息，切换请求(HO required)消息，切换通知(HO Notify)消息，EPS无线接入承载修改指示(e-RAB Modification Indication)消息，EPS无线接入承载释放指示(e-RAB Release Indication)消息，终端上下文修改指示(UE Context Modify Indication)消息，或终端上下文释放指示(UE Context Release Indication)消息等消息中。
MN可在以下几种情况下确定终端不使用NR接入：
情况一，若MN为eNB，SN为gNB，gNB的信号强度很弱(例如，低于阈值)或者终端移 出双连接覆盖区域的情况下丢失gNB信号连接；
情况二，若所有Non-GBR承载/QoS流都在eNB节点上，例如gNB节点上的non-GBR承载/QoS流切换到eNB节点上或gNB节点的non-GBR承载/QoS流释放，不使用gNB传输数据。
MN可在以下几种情况下确定终端使用NR接入：
终端建立到gNB上的信号连接，把non-GBR承载/QoS流切换到gNB上，或者为新建的承载/QoS流选择gNB，使用gNB传输数据。
MME网元可根据第一指示信息获知终端是否使用NR接入，除了这种方式外，MME网元还可以通过其他方式来获知终端是否使用NR接入。例如，MME网元可根据第二指示信息、终端的位置、第三指示信息和第一配置信息来确定终端是否使用NR接入。
其中，第二指示信息和终端的位置由MN向MME网元发送，第二指示信息用于指示MN的双连接能力，即是否具备双连接能力，MN具备双连接能力指的是MN可以为终端分配自己的资源，也可以为终端分配其它网络节点的资源。终端的位置可以是终端所属的跟踪区。
第三指示信息由终端向MME网元发送，第三指示信息用于指示终端是否具备双连接能力，即终端是否可以同时连接至两个网络节点。终端可以在步骤S601之前向MME网元发送第三指示信息，可通过非接入层(non-access-stratum，NAS)消息向MME网元发送第三指示信息，即第三指示信息携带在NAS消息中，NAS消息可以是附着请求(Attach Request)、跟踪区更新请求(TAU Request)、服务请求(Service Request)、承载资源分配请求(Bearer Resource Allocation Request)、承载资源修改(Bearer Resource Modification Request)或分组数据网连接请求(PDN Connectivity Request)。
第一配置信息可以是运营商配置的，可以包括跟踪区识别码和跟踪区识别码对应的跟踪区的双连接能力，跟踪区的双连接能力指的是跟踪区是否支持该区域内的终端同时连接至两个网络节点。
MME网元在MN具备双连接能力和终端具备双连接能力的情况下，如果终端从不支持双连接的跟踪区进入到支持双连接的跟踪区，此时终端的位置所属的跟踪区支持双连接，MME网元可确定出终端使用NR接入的接入信息；若终端从支持双连接的跟踪区进入到不支持双连接的跟踪区，此时终端的位置所属的跟踪区不支持双连接，MME网元可确定出终端不使用NR接入的接入信息。
终端在从不支持双连接的跟踪区进入到支持双连接的跟踪区，或者从支持双连接的跟踪区进入到不支持双连接的跟踪区时，会触发跟踪区更新(tracking area update，TAU)，从而触发MN向MME网元发送第一指示信息。
步骤S602，MME网元根据第一指示信息确定第一APN-AMBR信息。
其中，APN-AMBR信息可以包括APN-AMBR这个参数和APN-AMBR这个参数的值，用于对数据传输速率进行控制。APN-AMBR用于限制终端在某个APN上所有non-GBR承载的聚合最大比特速率，APN-AMBR的速率控制可在终端上执行，即终端可根据APN-AMBR参数的值对数据传输速率进行调整，例如，控制终端上的数据传输速率的最大值不超过APN-AMBR参数的值；速率控制也可在PGW网元上执行，即PGW网元可根据APN-AMBR参数的值对数据传输速率进行调整。
在一种可能的实现方式中，MME网元可根据接入信息和第二配置信息来确定第一APN-AMBR信息，第二配置信息包括使用NR接入对应的APN-AMBR信息或不使用NR接入对应的APN-AMBR信息，例如，接入信息为终端使用NR接入，MME网元可从第二配置信息中选择 NR接入对应的APN-AMBR信息，并将其作为第一APN-AMBR信息。
其中，不使用NR接入可以是终端使用E-UTRAN传输数据，没有使用NR接入网络节点。使用NR接入可以是终端使用NR传输数据。
在一种可能的实现方式中，第一消息还包括第二APN-AMBR信息，MME网元可根据接入信息和第二APN-AMBR信息确定第一APN-AMBR信息，即结合接入信息和第二APN-AMBR信息来确定第一APN-AMBR信息。
MME网元在确定第一APN-AMBR信息的情况下，可将第一APN-AMBR信息发送至终端，第一APN-AMBR信息用于终端根据第一APN-AMBR信息对数据传输速率进行控制，即终端根据第一APN-AMBR信息对终端上的数据传输速率进行调整，避免终端上的数据传输速率超过第一APN-AMBR参数的值，或提高终端上的数据传输速率，以保证数据传输效率。
若移动管理网元之前向终端发送的APN-AMBR信息中APN-AMBR这个参数的值较大，例如，大于当前所确定的第一APN-AMBR信息中第一APN-AMBR这个参数的值，那么移动管理网元可不将当前所确定的第一APN-AMBR信息发送至终端，终端可不对数据传输速率进行调整，也可以节省系统信令。
MME网元在确定第一APN-AMBR信息的情况下，可根据第一APN-AMBR信息计算确定第一UE-AMBR信息，并将第一UE-AMBR信息发送至MN，以便MN可以根据第一UE-AMBR信息对终端的数据传输速率进行控制。
其中，UE-AMBR信息可以包括UE-AMBR参数和UE-AMBR参数的值，用于对数据传输速率进行控制。UE-AMBR用于限制终端的所有non-GBR承载的聚合最大比特速率，UE-AMBR的速率控制可在MN上执行，即MN根据UE-AMBR信息的参数的值对其数据传输速率进行调整，例如，控制终端在MN上的数据传输速率的最大值不超过UE-AMBR参数的值。
若移动管理网元之前向主网络节点发送的UE-AMBR信息中UE-AMBR这个参数的值较大，例如，大于当前所确定的第一UE-AMBR信息中第一UE-AMBR这个参数的值，那么移动管理网元可不将当前所确定的第一UE-AMBR信息发送至主网络节点，主网络节点可不对数据传输速率进行调整，也可以节省系统信令。
在一种可能的实现方式中，步骤S602之后还可以包括如下步骤：
步骤S603，MME网元向SGW网元发送第一承载管理请求。相应地，SGW网元接收来自MME网元的第一承载管理请求。
其中，该第一承载管理请求包括第一指示信息，还可以包括第二APN-AMBR信息，还可以包括第一APN-AMBR信息，还可以包括承载标识。
步骤S604，SGW网元向PGW网元发送第二承载管理请求。相应地，PGW网元接收来自SGW网元的第二承载管理请求。
其中，该第二承载管理请求包括第一指示信息，还可以包括第二APN-AMBR信息，还可以包括第一APN-AMBR信息，还可以包括承载标识。
步骤S605，PGW网元根据第一指示信息确定第三APN-AMBR信息。
若第二承载管理请求包括第一指示信息，则PGW网元可根据第一指示信息确定第三APN-AMBR信息。
若第二承载管理请求包括第一指示信息，则PGW网元也可根据第一指示信息和第二配置信息确定第三APN-AMBR信息，同MME网元根据第一指示信息和第二配置信息确定第一APN-AMBR信息，只是执行主体存在差别。
若第二承载管理请求包括第一指示信息和第二APN-AMBR信息，则PGW网元根据第一指示信息和第二APN-AMBR信息确定第三APN-AMBR信息，同MME网元根据第一指示信息和第二APN-AMBR信息确定第一APN-AMBR信息，只是执行主体存在差别。
若第二承载管理请求包括第一指示信息、第二APN-AMBR信息和第一APN-AMBR信息，则PGW网元可在第一APN-AMBR信息的基础上，结合第一指示信息和第二APN-AMBR信息来确定第三APN-AMBR信息。
PGW网元在确定第三APN-AMBR信息的情况下，可根据第三APN-AMBR信息对数据传输速率进行控制，例如，对终端在PGW网元上的数据传输速率进行控制。
若第二承载管理请求只包括第一APN-AMBR信息，则PGW网元可根据第一APN-AMBR信息对数据传输速率进行控制。
步骤S606，PGW网元向SGW网元发送第二承载管理响应。相应地，SGW网元接收来自PGW网元的第二承载管理响应。
其中，该第二承载管理响应用于响应第二承载管理请求，第二承载管理响应包括第三APN-AMBR信息，还可以包括承载标识。
步骤S607，SGW网元向MME网元发送第一承载管理响应。相应地，MME网元接收来自SGW网元的第一承载管理响应。
其中，该第一承载管理响应用于响应第一承载管理请求，第一承载管理响应包括第三APN-AMBR信息，还可以包括承载标识。
上述第一承载管理响应和上述第二承载管理响应还包括第四指示信息，MME网元在接收到第四指示信息的情况下，向MN发送第四指示信息，所述第四指示信息用于指示MN是否为承载分配MN的资源，或是否为承载分配SN的资源，以便MN确定是否为承载分配MN的资源或SN的资源。其中，第四指示信息可以是PGW网元从PCRF网元中获取的，PCRF网元可以根据承载的QCI确定第四指示信息。
MME网元也可根据承载的QCI确定第四指示信息，向主网络节点发送第四指示信息，第四指示信息用于指示主网络节点是否为承载分配主网络节点的资源，或是否为承载分配辅网络节点的资源，以便主网络节点确定是否为承载分配主网络节点的资源或辅网络节点的资源。
在一种可能的实现方式中，若PGW网元未执行步骤S605，则PGW网元可触发IP-CAN会话管理流程，在步骤S604与步骤S606之间可包括如下步骤：
步骤S605a，PGW网元向PCRF网元发送IP-CAN会话管理请求。相应地，PCRF网元接收来自PGW网元的IP-CAN会话管理请求。
其中，该IP-CAN会话管理请求包括第一指示信息，还可以包括第二APN-AMBR信息，还可以包括第一APN-AMBR信息。
步骤S605b，PCRF网元根据第一指示信息确定第三APN-AMBR信息。
若IP-CAN会话管理请求包括第一指示信息，则PCRF网元可根据第一指示信息确定第三APN-AMBR信息。
若IP-CAN会话管理请求包括第一指示信息，则PCRF网元也可根据第一指示信息和第二配置信息确定第三APN-AMBR信息，同MME网元根据第一指示信息和第二配置信息确定第一APN-AMBR信息，只是执行主体存在差别。
若IP-CAN会话管理请求包括第一指示信息和第二APN-AMBR信息，则PCRF网元根据第一指示信息和第二APN-AMBR信息确定第三APN-AMBR信息，同MME网元根据第一指示信息和第 二APN-AMBR信息确定第一APN-AMBR信息，只是执行主体存在差别。
若IP-CAN会话管理请求包括第一指示信息、第二APN-AMBR信息和第一APN-AMBR信息，则PCRF网元可在第一APN-AMBR信息的基础上，结合第一指示信息和第二APN-AMBR信息来确定第三APN-AMBR信息。
步骤S605c，PCRF网元向PGW网元发送IP-CAN会话管理响应。相应地，PGW网元接收来自PCRF网元的IP-CAN会话管理响应。
其中，该IP-CAN会话管理响应用于响应IP-CAN会话管理请求，IP-CAN会话管理响应包括第三APN-AMBR信息。
MME网元在接收到第三APN-AMBR信息的情况下，可将第三APN-AMBR信息发送至终端，第三APN-AMBR信息用于终端根据第三APN-AMBR信息对数据传输速率进行控制，即终端根据第三APN-AMBR信息对终端上的数据传输速率进行调整，避免终端上的数据传输速率超过第三APN-AMBR参数的值，或提高终端上的数据传输速率，以保证数据传输效率。
MME网元在接收到第三APN-AMBR信息的情况下，可根据第三APN-AMBR信息计算确定第三UE-AMBR信息，并将第三UE-AMBR信息发送至MN，以便MN可以根据第三UE-AMBR信息对MN上的数据传输速率进行控制。
图7所示的实施例，应用在5GS MR-DC场景中，在终端突然使用NR接入或突然不使用NR接入的情况下，由MME网元根据终端是否使用NR接入来确定第一APN-AMBR信息，MME网元可将第一APN-AMBR信息通知至PGW网元，以便PGW网元根据第一APN-AMBR信息对终端在PGW网元上的数据传输速率进行调整，从而实现根据第一APN-AMBR信息对终端的数据传输速率进行适应性地调整，进而可以避免数据丢包，还可以保证数据传输效率。PGW网元也可根据第一指示信息确定第三APN-AMBR信息，根据第三APN-AMBR信息对终端在PGW网元上的数据传输速率进行调整，从而实现根据第一APN-AMBR信息对终端的数据传输速率进行适应性地调整。
以图5所示的速率调整系统应用于图1-图3所示的MR-DC网络架构为例，如图8所示，为本申请实施例二提供的速率调整方法的流程示意图，该方法中的AMF网元或SMF网元可以通过图6所示的通信设备来实现。该方法可以包括但不限于如下步骤：
步骤S701，MN向AMF网元发送第一指示信息。相应地，AMF网元接收来自MN的第一指示信息。
其中，第一指示信息可通过第一消息发送，即第一指示信息携带在第一消息中。第一消息可以是通知消息(notify)，也可以是其他类型的消息，在本申请实施例中不作限定。
其中，第一指示信息可参见图7所示实施例中步骤S601的对第一指示信息的具体描述，在此不再赘述。
步骤S702，AMF网元向SMF网元发送第一指示信息。相应地，SMF网元接收来自AMF网元的第一指示信息。
AMF网元可接收来自MN的第一指示信息，并将第一指示信息通过第一消息发送至SMF网元，以便SMF网元获知第一指示信息。
AMF网元可根据第二指示信息、终端的位置、第三指示信息和第一配置信息来确定终端是否使用NR接入的第一指示信息。
其中，第二指示信息和终端的位置由MN向AMF网元发送，第二指示信息用于指示MN的双连接能力，终端的位置可以是终端所属的跟踪区。
第三指示信息由终端向AMF网元发送，第三指示信息用于指示终端是否具备双连接能力，即终端是否可以同时连接至两个网络节点。终端可以在步骤S601之前向AMF网元发送第三指示信息，可通过NAS消息向AMF网元发送第三指示信息，即第三指示信息携带在NAS消息中，NAS消息可以是注册请求消息(Registration Request)。
第一配置信息可参见图7所示实施例中步骤S601的对第一配置信息的具体描述，在此不再赘述。
AMF网元在MN具备双连接能力和终端具备双连接能力的情况下，如果终端从不支持双连接的跟踪区进入到支持双连接的跟踪区，此时终端的位置所属的跟踪区支持双连接，AMF网元可确定出终端使用NR接入的第一指示信息；若终端从支持双连接的跟踪区进入到不支持双连接的跟踪区，此时终端的位置所属的跟踪区不支持双连接，AMF网元可确定出终端不使用NR接入的第一指示信息。AMF网元在确定出终端是否使用NR接入的第一指示信息的情况下，将第一指示信息通过第一消息发送至SMF网元，以便SMF网元获知第一指示信息。
步骤S703，SMF网元根据第一指示信息确定第一session-AMBR信息。
其中，session-AMBR信息可以包括session-AMBR参数和session-AMBR参数的值，用于对数据传输速率进行控制。session-AMBR用于限制终端在某个会话上所有non-GBR承载QoS流的聚合最大比特速率，session-AMBR的速率控制可在终端上执行，即终端可根据session-AMBR参数的值对数据传输速率进行调整，例如，控制终端上的数据传输速率的最大值不超过session-AMBR参数的值；速率控制也可在UPF网元上执行，即UPF网元可根据session-AMBR参数的值对数据传输速率进行调整。
在一种可能的实现方式中，SMF网元可根据接入信息和第二配置信息来确定第一session-AMBR信息，第二配置信息包括使用NR接入对应的session-AMBR信息或不使用NR接入对应的session-AMBR信息，例如，接入信息为终端使用NR接入，SMF网元可从第二配置信息中选择NR接入对应的session-AMBR信息，并将其作为第一session-AMBR信息。
其中，不使用NR接入可以是终端使用E-UTRAN传输数据，没有使用NR接入网络节点。使用NR接入可以是终端使用NR传输数据。
在一种可能的实现方式中，上述第一消息还包括第二session-AMBR信息，第二session-AMBR信息为MN建议的session-AMBR信息，MN可根据MN的实际使用情况确定建议的session-AMBR信息。SMF网元可根据接入信息和第二session-AMBR信息确定第一session-AMBR信息，即结合接入信息和第二session-AMBR信息来确定第一session-AMBR信息，例如，会话管理网元可根据接入信息确定一个session-AMBR信息，然后根据第二session-AMBR信息对该session-AMBR信息进行调大或调小，从而得到第一session-AMBR信息。
在一种可能的实现方式中，会话管理网元在确定第一session-AMBR信息的情况下，可将第一session-AMBR信息发送至UPF网元，第一session-AMBR信息用于UPF网元根据第一session-AMBR信息对数据传输速率进行控制，即UPF网元根据第一session-AMBR信息对终端在UPF网元上的数据传输速率进行调整，避免终端在UPF网元上的数据传输速率超过第一session-AMBR参数的值，或提高终端在UPF网元上的数据传输速率，以保证数据传输效率。
SMF网元可将第一session-AMBR信息携带在会话管理请求中发送至UPF网元，该会话管理请求还包括N4 session标识和QoS流标识(QoS flow identity，QFI)。换言之，可在步骤S703之后执行步骤S707。
在一种可能的实现方式中，SMF网元在确定第一session-AMBR信息的情况下，可通过AMF网元将第一session-AMBR信息发送至终端，即SMF网元向AMF网元发送第一session-AMBR信息，AMF网元向终端发送第一session-AMBR信息，终端根据第一session-AMBR信息对其上的session-AMBR信息进行更新。
若SMF网元之前通过AMF网元向终端发送的session-AMBR信息中session-AMBR这个参数的值较大，例如，大于当前所确定的第一session-AMBR信息中第一session-AMBR这个参数的值，那么SMF网元可不将当前所确定的第一session-AMBR信息发送至终端，终端可不对数据传输速率进行调整，也可以节省系统信令。
在一种可能的实现方式中，SMF网元在确定第一session-AMBR信息的情况下，可通过接入管理网元将第一session-AMBR信息发送至MN，即SMF网元向AMF网元发送第一session-AMBR信息，AMF网元向MN发送第一session-AMBR信息，MN根据第一session-AMBR信息对其上的session-AMBR信息进行更新，并根据第一session-AMBR信息计算确定第一UE-AMBR信息，以便MN可以根据第一UE-AMBR信息对数据传输速率进行控制。
其中，UE-AMBR信息可以包括UE-AMBR参数和UE-AMBR参数的值，用于对数据传输速率进行控制。UE-AMBR用于限制终端的所有non-GBR QoS流的聚合最大比特速率，UE-AMBR的速率控制可在MN上执行，即MN根据UE-AMBR信息的参数的值对其数据传输速率进行调整，例如，控制终端在MN上的数据传输速率的最大值不超过UE-AMBR参数的值。
SMF网元向AMF网元发送的第一session-AMBR信息可携带在N11消息中，N11消息可以是会话创建响应，也可以是会话更新响应。N11消息还可以包括会话标识、QFI和第一session-AMBR信息。例如N11消息可以为包括N2 SM(会话标识，QFI，第一session-AMBR信息)和N1 SM(会话标识，QFI，第一session-AMBR信息)。
AMF网元向MN发送N2消息，包括第一UE-AMBR信息、会话标识，QFI，和第一session-AMBR信息，用于更新UE上的session-AMBR信息。
在一种可能的实现方式中，步骤S703之后还可以包括如下步骤：
步骤S704，SMF网元向PCF网元发送策略更新请求。相应地，PCF网元接收来自SMF网元的策略更新请求。
其中，策略更新请求包括第一指示信息，还可以包括第二session-AMBR信息，还可以包括第一session-AMBR信息。策略更新请求可以是SM Policy Update Request。
步骤S705，PCF网元根据第一指示信息确定第三session-AMBR信息。
若第二承载管理请求包括第一指示信息和第一session-AMBR信息，则PCF网元可基于第一session-AMBR信息根据第一指示信息确定第三session-AMBR信息。
若第二承载管理请求包括第一指示信息和第一session-AMBR信息，则PCF网元也可基于第一session-AMBR信息根据第一指示信息和第二配置信息确定第三session-AMBR信息。
若第二承载管理请求包括第一指示信息、第二session-AMBR信息和第一session-AMBR信息，则PCF网元可基于第一session-AMBR信息根据第一指示信息和第二session-AMBR信息确定第三session-AMBR信息。
步骤S706，PCF网元向SMF网元发送策略更新响应。相应地，SMF网元接收来自PCF网元的策略更新响应。
其中，策略更新响应包括第三session-AMBR信息。策略更新响应可以是SM Policy Update Response。
在一种可能的实现方式中，策略更新响应还包括第四指示信息，SMF网元还可通过AMF网元向MN发送第四指示信息，第四指示信息用于指示MN是否为会话的服务质量流分配MN的资源，或是否为会话的服务质量流分配SN的资源，即为会话的服务质量流分配MN的资源还是SN的资源，以便MN确定为会话的服务质量流分配MN的资源还是SN的资源。
在一种可能的实现方式中，SMF网元可根据5QI确定第四指示信息，SMF网元还可通过AMF网元向MN发送第四指示信息，第四指示信息用于指示MN是否为会话的服务质量流分配MN的资源，或是否为会话的服务质量流分配SN的资源，即为会话的服务质量流分配MN的资源还是SN的资源，以便MN确定为会话的服务质量流分配MN的资源还是SN的资源。
SMF网元在接收到第三session-AMBR信息的情况下，可通过AMF网元将第三session-AMBR信息发送至终端，即SMF网元向AMF网元发送第三session-AMBR信息，AMF网元向终端发送第三session-AMBR信息，终端根据第三session-AMBR信息对其上的session-AMBR信息进行更新。
若SMF网元之前通过AMF网元向终端发送的session-AMBR信息中session-AMBR这个参数的值较大，例如，大于当前所确定的第三session-AMBR信息中第三session-AMBR这个参数的值，那么SMF网元可不将当前所确定的第三session-AMBR信息发送至终端，终端可不对数据传输速率进行调整，也可以节省系统信令。
SMF网元在接收到第三session-AMBR信息的情况下，也可通过AMF网元将第三session-AMBR信息发送至MN，即SMF网元向AMF网元发送第三session-AMBR信息，AMF网元向MN第三session-AMBR信息，MN根据第三session-AMBR信息对其上的session-AMBR信息进行更新，可根据第三session-AMBR信息计算确定第三UE-AMBR信息，以便MN可以根据第三UE-AMBR信息对数据传输速率进行控制。
SMF网元向AMF网元发送N11消息，N11消息可以是会话创建响应，也可以是会话更新响应。例如N11消息可以为包括N2 SM(会话标识，QFI，第四指示信息，第一session-AMBR信息)和N1 SM(会话标识，QFI，第一session-AMBR信息)。
AMF网元向MN发送N2消息，包括会话标识，QFI，第四指示信息和第一session-AMBR信息，用于更新UE上的session-AMBR信息。
在一种可能的实现方式中，SMF网元在接收到第三session-AMBR信息的情况下，向UPF网元发送第三session-AMBR信息，第三session-AMBR信息用于UPF网元根据第三session-AMBR信息对UPF网元上的数据传输速率进行控制。
SMF网元可将第三session-AMBR信息携带在会话管理请求中发送至UPF网元，该会话管理请求还包括N4 session标识和QoS流标识(QoS flow identity，QFI)。换言之，可在步骤S703之后执行步骤S707。
需要说明的是，SMF网元执行步骤S703之后，向UPF网元发送第一session-AMBR信息，即不执行步骤S704-步骤S706；或SMF网元在执行步骤S703之后，执行步骤S704-步骤S706，在执行步骤S706之后，向UPF网元发送第三session-AMBR信息。
图8所示的实施例，应用在5GSMR-DC场景中，在终端突然使用NR接入或突然不使用NR接入的情况下，由AMF网元根据终端是否使用NR接入来确定第一session-AMBR信息，MME网元可将第一session-AMBR信息通知至UPF网元，以便UPF网元根据第一session-AMBR信息对终端上的数据传输速率进行调整，从而实现根据第一session-AMBR信息对终端在UPF网元上的数据传输速率进行适应性地调整，进而可以避免数据丢包，还可以保证数据传输效率。
以图4所示的速率调整系统应用于图1-图3所示的MR-DC网络架构为例，如图9所示，为本申请实施例三提供的速率调整方法的流程示意图，该方法中的MME网元可以通过图6所示的通信设备来实现。该方法可以包括但不限于如下步骤：
步骤S801，MN向MME网元发送第一指示信息。相应地，MME网元接收来自MN的第一指示信息。
步骤S802，MME网元根据第一指示信息确定第一APN-AMBR信息和第二APN-AMBR信息。
其中，第一APN-AMBR信息为使用NR接入对应的APN-AMBR信息，第二APN-AMBR为不使用NR接入对应的APN-AMBR信息。
步骤S803，MME网元向SGW网元发送第一承载建立请求。相应地，SGW网元接收来自MME网元的第一承载建立请求。
其中，第一承载建立请求包第一指示信息，还包括第一APN-AMBR信息和第二APN-AMBR信息，还包括承载标识。
第一承载建立请求还包括第五APN-AMBR信息，第五APN-AMBR信息为MN建议的APN-AMBR信息，第五APN-AMBR信息和接入信息用于确定第三APN-AMBR信息和第四APN-AMBR信息，例如用于PGW网元根据第五APN-AMBR信息和接入信息，对第一APN-AMBR信息、第二APN-AMBR信息进行调整，得到第三APN-AMBR信息和第四APN-AMBR信息。
步骤S804，SGW网元向PGW网元发送第二承载建立请求。相应地，PGW网元接收来自SGW网元的第二承载建立请求。
其中，第二承载建立请求包第一指示信息，还包括第一APN-AMBR信息和第二APN-AMBR信息，还包括承载标识。
第二承载建立请求还包括第一承载建立请求所携带的第五APN-AMBR信息。
步骤S805，PGW网元根据第一指示信息确定第三APN-AMBR信息和第四APN-AMBR信息。
其中，第三APN-AMBR信息为使用NR接入对应的APN-AMBR信息，第四APN-AMBR为不使用NR接入对应的APN-AMBR信息。
步骤S806，PGW网元向SGW网元发送第二承载建立响应。相应地，SGW网元接收来自PGW网元的第二承载建立响应。
其中，第二承载建立响应包括第三APN-AMBR信息和第四APN-AMBR信息，还包括第四指示信息。
步骤S807，SGW网元向MME网元发送第一承载建立响应。相应地，MME网元接收来自SGW网元的第一承载建立响应。
其中，第一承载建立响应包括第三APN-AMBR信息和第四APN-AMBR信息，还包括第四指示信息。
步骤S808，MME网元计算得到第一UE-AMBR信息和第二UE-AMBR信息。
MME网元可根据第一APN-AMBR信息和第二APN-AMBR信息计算得到第一UE-AMBR信息和第二UE-AMBR信息。第一UE-AMBR信息为使用NR接入对应的APN-AMBR信息，第二UE-AMBR为不使用NR接入对应的APN-AMBR信息。
MME网元可根据第三APN-AMBR信息和第四APN-AMBR信息计算得到第三UE-AMBR信息和第四UE-AMBR信息。第三UE-AMBR信息为使用NR接入对应的APN-AMBR信息，第四UE-AMBR为不使用NR接入对应的APN-AMBR信息。
步骤S809，MME网元向MN发送S1-AP请求消息。相应地，MN接收来自MME网元的S1-AP 请求消息。
其中，S1-AP请求消息包括第一UE-AMBR信息、第二UE-AMBR信息和第四指示信息，还包括第一APN-AMBR信息、第二APN-AMBR信息和承载标识。S1-AP请求消息可以是初始终端上下文设置(Initial UE context Setup)消息或者下行非接入层传输(Downlink NAS Transport)消息。
其中，S1-AP请求消息包括第三UE-AMBR信息、第四UE-AMBR信息和第四指示信息，还包括第三APN-AMBR信息、第四APN-AMBR信息和承载标识。
步骤S810，MN根据终端是否使用NR确定一个UE-AMBR信息。
MN根据终端是否使用NR从第一UE-AMBR信息和第二UE-AMBR信息中选择一个UE-AMBR信息，或根据终端是否使用NR接入从第三UE-AMBR信息和第四UE-AMBR信息中选择一个UE-AMBR信息。
MN根据第四指示信息确定是否为承载分配MN的资源或辅网络节点的资源。
MN触发无线资源控制(radio resource control，RRC)连接重配置流程，把承载标识、第一APN-AMBR信息、第二APN-AMBR信息发送给终端或者把承载标识、第三APN-AMBR信息、第四APN-AMBR信息发送给终端；终端根据终端确定使用哪个APN-AMBR信息。
在一种可能的实现方式中，若PGW网元未执行步骤S805，则PGW网元可触发IP-CAN会话管理流程，在步骤S804与步骤S806之间可包括如下步骤：
步骤S805a，PGW网元向PCRF网元发送IP-CAN会话建立请求。相应地，PCRF网元接收来自PGW网元的IP-CAN会话建立请求。
步骤S805b，PCRF网元根据第一指示信息确定第三APN-AMBR信息和第四APN-AMBR信息。
步骤S805c，PCRF网元向PGW网元发送IP-CAN会话建立响应。相应地，PGW网元接收来自PCRF网元的IP-CAN会话建立响应。
图9所示的实施例，应用在5GS MR-DC场景中，在终端突然使用NR接入或突然不使用NR接入的情况下，MME网元根据终端是否使用NR接入来生成第一APN-AMBR信息和第二APN-AMBR信息，可将第一APN-AMBR信息和第二APN-AMBR信息发送至PGW网元，以便PGW网元根据MME网元的指示确定使用哪一个AMBR信息。或者，MME网元将第三APN-AMBR信息和第四APN-AMBR信息发送至PGW网元，以便PGW网元根据MME网元的指示确定使用哪一个AMBR信息。MME网元也可以将第一APN-AMBR信息和第二APN-AMBR信息发送至终端、MN，以便终端、MN可以根据终端是否使用NR接入来选择一个AMBR信息使用。
图9所示的实施例适用于承载建立过程，对于承载修改过程，MME网元可根据第一指示信息生成第一APN-AMBR信息或第二APN-AMBR信息，即生成一个APN-AMBR信息；向SGW网元发送第一承载修改请求，第一承载修改请求包括该APN-AMBR信息；SGW网元向PGW网元发送第二承载修改请求，第二承载修改请求包括该APN-AMBR信息；PGW网元根据该APN-AMBR信息对数据传输速率进行控制。或，MME网元向SGW网元发送第一承载修改请求，第一承载修改请求包括第一指示信息；SGW网元向PGW网元发送第二承载修改请求，第二承载修改请求包括第一指示信息；PGW网元根据第一指示信息确定一个APN-AMBR信息，并根据该APN-AMBR信息对数据传输速率进行控制。
以图5所示的速率调整系统应用于图1-图3所示的MR-DC网络架构为例，如图10所示，为本申请实施例四提供的速率调整方法的流程示意图，该方法中的AMF网元或SMF网元可以通过图6所示的通信设备来实现。该方法可以包括但不限于如下步骤：
步骤S901，MN向AMF网元发送第一指示信息。相应地，AMF网元接收来自MN的第一指示信息。
步骤S902，AMF网元向SMF网元发送第一指示信息。相应地，SMF网元接收来自AMF网元的第一指示信息。
步骤S903，SMF网元根据第一指示信息确定第一session-AMBR信息和第二session-AMBR信息。
第一session-AMBR信息为使用NR接入对应的session-AMBR信息，第二session-AMBR信息为不使用NR接入对应的session-AMBR信息。
步骤S904，SMF网元向PCF网元发送策略更新请求。相应地，PCF网元接收来自SMF网元的策略更新请求。
其中，策略更新请求包括第一session-AMBR信息、第二session-AMBR信息和第一指示信息。
步骤S905，PCF网元根据第一指示信息确定第三session-AMBR信息和第四session-AMBR信息。
步骤S906，PCF网元向SMF网元发送策略更新响应。相应地，SMF网元接收来自PCF网元的策略更新响应。
步骤S907，SMF网元向UPF网元发送会话建立请求。相应地，UPF网元接收来自SMF网元的会话建立请求。
其中，会话管理请求包括第一session-AMBR信息、第二session-AMBR信息和指示信息，以使UPF网元根据指示信息从第一session-AMBR信息和第二session-AMBR信息中选择一个session-AMBR信息对数据传输速率进行控制。
其中，会话管理请求包括第三session-AMBR信息、第四session-AMBR信息和指示信息，以使UPF网元根据指示信息从第三session-AMBR信息和第四session-AMBR信息中选择一个session-AMBR信息对数据传输速率进行控制。
步骤S908，SMF网元向AMF网元发送N11消息。相应地，AMF网元接收来自SMF网元的N11消息。
其中，N11消息包括N2 SM和N1 SM，其中N2 SM包括会话标识、第一session-AMBR,第二session-AMBR和第四指示信息，N1 SM包括会话标识、第一session-AMBR、第二session-AMBR和指示信息。N11消息可以是会话建立响应。
其中，N11消息包括N2 SM和N1 SM，其中N2 SM包括会话标识、第三session-AMBR,第四session-AMBR和第四指示信息，N1 SM包括会话标识、第三session-AMBR、第四session-AMBR和指示信息。
步骤S909，AMF网元向MN发送N2请求。相应地，MN接收来自AMF网元的N2请求。
其中，N2请求包括N2 SM和N1 SM，其中N2 SM包括会话标识、第一session-AMBR,第二session-AMBR和第四指示信息，N1 SM包括会话标识、第一session-AMBR、第二session-AMBR和指示信息。
其中，N2请求包括N2 SM和N1 SM，其中N2 SM包括会话标识、第三session-AMBR,第四session-AMBR和第四指示信息，N1 SM包括会话标识、第三session-AMBR、第四session-AMBR和指示信息。
步骤S910，MN根据终端是否使用NR确定一个session-AMBR信息。
MN根据终端是否使用NR从第一session-AMBR信息和第二session-AMBR信息中选择一个session-AMBR信息，或根据终端是否使用NR接入从第三session-AMBR信息和第四session-AMBR信息中选择一个session-AMBR信息。
MN根据第四指示信息确定将QFI置于MN上还是辅网络节点上。
MN触发RRC连接重配置流程，把会话标识、第一session-AMBR信息、第二session-AMBR信息发送给终端或把会话标识、第三session-AMBR信息、第四session-AMBR信息发送给终端；终端根据终端确定使用哪个session-AMBR信息。
图10所示的实施例，应用在5GSMR-DC场景中，在终端突然使用NR接入或突然不使用NR接入的情况下，SMF网元根据终端是否使用NR接入来生成第一session-AMBR信息和第二session-AMBR信息，将第一session-AMBR信息和第二session-AMBR信息发送至UPF网元，以便UPF网元根据SMF网元的指示确定使用哪一个AMBR。或者，SMF网元可以将第三session-AMBR信息和第四session-AMBR信息发送至UPF网元，以便UPF网元根据SMF网元的指示确定使用哪一个AMBR。
SMF网元也可将第一session-AMBR信息和第二session-AMBR信息发送至终端、MN，以便终端、MN可以根据终端是否使用NR接入来选择一个AMBR信息使用。
图10所示的实施例适用于会话建立过程，对于会话修改过程，SMF网元可根据第一指示信息生成第一session-AMBR信息或第二session-AMBR信息，即生成一个session-AMBR信息；向UPF网元发送会话修改请求，该会话修改请求包括该session-AMBR信息，UPF网元根据该session-AMBR信息对数据传输速率进行控制。或，SMF网元向UPF网元发送会话修改请求，会话修改请求包括第一指示信息；UPF网元根据第一指示信息确定一个session-AMBR信息，并根据该session-AMBR信息对数据传输速率进行控制。
上述详细阐述了本申请实施例提供的方法，下面将对本申请实施例提供装置进行介绍。
请参见图11，为本申请实施例提供的通信设备的逻辑结构示意图，该通信设备70可以是图4中的移动管理网，也可以是图5中的会话管理网元，还可以是图5中的接入管理网元。
该通信设备70可以包括处理单元701，处理单元701所实现的相关功能/过程可以通过图6中的处理器601调用存储器603中存储的计算机执行指令来实现。处理单元701可包括第一处理单元7011和第二处理单元7012。该通信设备70还可以包括收发单元702，收发单元702所实现的相关功能/过程可通过图6中的通信接口604来实现。
若该通信设备70是图4中的移动管理网元，则第一处理单元7011用于确定终端是否使用NR接入的接入信息；第二处理单元7012用于根据接入信息确定第一APN-AMBR信息。
在一种可能的实现方式中，收发单元702，用于接收来自主网络节点的第一消息，第一消息包括第一指示信息，第一指示信息用于指示终端是否使用NR接入；第一处理单元701具体用于根据第一指示信息确定终端是否使用NR接入的接入信息。
在一种可能的实现方式中，收发单元702，用于移动管理网元接收来自主网络节点的第二消息，第二消息包括第二指示信息和终端的位置，第二指示信息用于指示主网络节点的双连接能力；接收来自终端的第三指示信息，第三指示信息用于指示终端的双连接能力；
第一处理单元7011具体用于根据第二指示信息、终端的位置、第三指示信息和第一配置信息确定终端是否使用NR接入的接入信息；其中，第一配置信息包括跟踪区识别码和跟踪区识别码对应的跟踪区的双连接能力。
在一种可能的实现方式中，第二处理单元7012具体用于根据接入信息和第二配置信息确 定第一APN-AMBR信息，第二配置信息包括使用NR接入对应的APN-AMBR信息或不使用NR接入对应的APN-AMBR信息。
在一种可能的实现方式中，第一消息还包括第二APN-AMBR信息，第二APN-AMBR信息为主网络节点建议的APN-AMBR信息；第二处理单元7012具体用于根据接入信息和第二APN-AMBR信息确定第一APN-AMBR信息。
在一种可能的实现方式中，收发单元702用于向终端发送第一APN-AMBR信息，第一APN-AMBR信息用于对数据传输速率进行控制。
在一种可能的实现方式中，收发单元702用于向服务网元发送第一承载管理请求，第一承载管理请求包括接入信息，以使服务网元向分组数据网元发送第二承载管理请求，第二承载管理请求包括接入信息，接入信息用于确定第三APN-AMBR信息，第三APN-AMBR信息用于分组数据网元对数据传输速率进行控制；接收来自服务网元的第一承载管理响应，第一承载管理响应包括第三APN-AMBR信息。
在一种可能的实现方式中，第一承载管理请求还包括第二APN-AMBR信息，第二承载管理请求还包括第二APN-AMBR信息，第二APN-AMBR信息为主网络节点建议的APN-AMBR信息，第二APN-AMBR信息和接入信息用于确定第三APN-AMBR信息。
在一种可能的实现方式中，第二承载管理响应还包括第四指示信息；第一承载管理响应还包括第四指示信息；收发单元702用于向主网络节点发送第四指示信息，第四指示信息用于指示主网络节点是否为承载分配主网络节点的资源，或是否为承载分配辅网络节点的资源。
该通信设备70还可以是图7所示实施例中的MME网元，可以实现图7所示实施例中MME网元的功能，该通信设备70中各个单元执行详细过程可以参见图7所示实施例中MME网元的执行步骤，此处不在赘述。由于本实施例提供的MME网元可执行图7所示的速率调整方法，因此其所能获得的技术效果可参考图7所示实施例，在此不再赘述。
若该通信设备70是图5中的会话管理网元，则第一处理单元7011用于确定终端是否使用NR接入的接入信息；第二处理单元7012用于根据接入信息确定第一session-AMBR信息。
在一种可能的实现方式中，收发单元702会话管理网元接收来自接入管理网元的第一消息，第一消息包括第一指示信息，第一指示信息用于指示终端是否使用NR接入；
第一处理单元7011具体用于根据第一指示信息确定终端是否使用NR接入的接入信息。
在一种可能的实现方式中，第二处理单元7012具体用于根据接入信息和第二配置信息确定第一session-AMBR信息，第二配置信息包括使用NR接入对应的session-AMBR信息或不使用NR接入对应的session-AMBR信息。
在一种可能的实现方式中，第一消息还包括第二session-AMBR信息，第二session-AMBR信息为主网络节点建议的session-AMBR信息；第二处理单元7012具体用于会话管理网元根据接入信息和第二session-AMBR信息确定第一session-AMBR信息。
在一种可能的实现方式中，收发单元702用于向用户面网元发送第一session-AMBR信息，第一session-AMBR信息用于对数据传输速率进行控制。
在一种可能的实现方式中，收发单元702用于向策略管理网元发送策略更新请求，策略更新请求包括接入信息和第一session-AMBR信息，接入信息用于策略管理网元基于第一session-AMBR信息来确定第三session-AMBR信息；接收来自策略管理网元的策略更新响应，策略更新响应包括第三session-AMBR信息；向用户面网元发送第三session-AMBR信息，第三session-AMBR信息用于对数据传输速率进行控制。
在一种可能的实现方式中，策略更新请求还包括第二session-AMBR信息，第二session-AMBR信息为主网络节点建议的session-AMBR信息，第二session-AMBR信息和接入信息用于策略管理网元基于第一session-AMBR信息来确定第三session-AMBR信息。
在一种可能的实现方式中，策略更新响应还包括第四指示信息；收发单元702用于通过接入管理网元向主网络节点发送第四指示信息，第四指示信息用于指示主网络节点是否为会话的服务质量流分配主网络节点的资源，或是否为会话的服务质量流分配辅网络节点的资源。
该通信设备70还可以是图8所示实施例中的SMF网元，可以实现图8所示实施例中SMF网元的功能，该通信设备70中各个单元执行详细过程可以参见图8所示实施例中SMF网元的执行步骤，此处不在赘述。由于本实施例提供的SMF网元可执行图8所示的速率调整方法，因此其所能获得的技术效果可参考图8所示实施例，在此不再赘述。
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流程，该流程可以由计算机程序来指令相关的硬件完成，该程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法实施例的流程。而前述的存储介质包括：ROM或随机存储记忆体RAM、磁碟或者光盘等各种可存储程序代码的介质。因此，本申请又一实施例提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
本申请又一实施例还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
本领域普通技术人员可以意识到，结合本申请中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算 机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者通过所述计算机可读存储介质进行传输。所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。

Claims (43)

  1. 一种速率调整方法，其特征在于，包括：
    移动管理网元确定终端是否使用新空口NR接入的接入信息；
    所述移动管理网元根据所述接入信息确定第一接入点名称-聚合最大比特速率APN-AMBR信息。
  2. 根据权利要求1所述的方法，其特征在于，所述移动管理网元确定终端是否使用NR接入的接入信息之前，所述方法还包括：
    所述移动管理网元接收来自主网络节点的第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示所述终端是否使用NR接入；
    所述移动管理网元确定终端是否使用NR接入的接入信息，包括：
    所述移动管理网元根据所述第一指示信息确定所述终端是否使用NR接入的接入信息。
  3. 根据权利要求1所述的方法，其特征在于，所述移动管理网元确定终端是否使用NR接入的接入信息之前，所述方法还包括：
    所述移动管理网元接收来自主网络节点的第二消息，所述第二消息包括第二指示信息和所述终端的位置，所述第二指示信息用于指示所述主网络节点的双连接能力；
    所述移动管理网元接收来自所述终端的第三指示信息，所述第三指示信息用于指示所述终端的双连接能力；
    所述移动管理网元确定终端是否使用NR接入的接入信息，包括：
    所述移动管理网元根据所述第二指示信息、所述终端的位置、所述第三指示信息和第一配置信息确定所述终端是否使用NR接入的接入信息；
    其中，第一配置信息包括跟踪区识别码和所述跟踪区识别码对应的跟踪区的双连接能力。
  4. 根据权利要求1所述的方法，其特征在于，所述移动管理网元根据所述接入信息确定第一APN-AMBR信息，包括：
    所述移动管理网元根据所述接入信息和第二配置信息确定第一APN-AMBR信息，所述第二配置信息包括使用NR接入对应的APN-AMBR信息或不使用NR接入对应的APN-AMBR信息。
  5. 根据权利要求2所述的方法，其特征在于，所述第一消息还包括第二APN-AMBR信息，所述第二APN-AMBR信息为所述主网络节点建议的APN-AMBR信息；
    所述移动管理网元根据所述接入信息确定第一APN-AMBR信息，包括：
    所述移动管理网元根据所述接入信息和所述第二APN-AMBR信息确定第一APN-AMBR信息。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述方法还包括：
    所述移动管理网元向所述终端发送所述第一APN-AMBR信息，所述第一APN-AMBR信息用于对数据传输速率进行控制。
  7. 根据权利要求1-5任一项所述的方法，其特征在于，所述方法还包括：
    所述移动管理网元向服务网元发送第一承载管理请求，所述第一承载管理请求包括所 述接入信息，以使所述服务网元向分组数据网元发送第二承载管理请求，所述第二承载管理请求包括所述接入信息，所述接入信息用于确定第三APN-AMBR信息，所述第三APN-AMBR信息用于所述分组数据网元对数据传输速率进行控制；
    所述移动管理网元接收来自所述服务网元的第一承载管理响应，所述第一承载管理响应包括所述第三APN-AMBR信息。
  8. 根据权利要求7所述的方法，其特征在于，所述第一承载管理请求还包括第二APN-AMBR信息，所述第二承载管理请求还包括所述第二APN-AMBR信息，所述第二APN-AMBR信息为所述主网络节点建议的APN-AMBR信息，所述第二APN-AMBR信息和所述接入信息用于确定所述第三APN-AMBR信息。
  9. 根据权利要求7所述的方法，其特征在于，所述第二承载管理响应还包括第四指示信息；所述第一承载管理响应还包括第四指示信息；
    所述方法还包括：
    所述移动管理网元向所述主网络节点发送所述第四指示信息，所述第四指示信息用于指示所述主网络节点是否为承载分配所述主网络节点的资源，或是否为承载分配辅网络节点的资源。
  10. 一种速率调整方法，其特征在于，包括：
    会话管理网元确定终端是否使用NR接入的接入信息；
    所述会话管理网元根据所述接入信息确定第一会话-聚合最大比特速率session-AMBR信息。
  11. 根据权利要求10所述的方法，其特征在于，所述会话管理网元确定终端是否使用NR接入的接入信息之前，所述方法还包括：
    所述会话管理网元接收来自接入管理网元的第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示所述终端是否使用NR接入；
    所述会话管理网元确定终端是否使用NR接入的接入信息，包括：
    所述会话管理网元根据所述第一指示信息确定所述终端是否使用NR接入的接入信息。
  12. 根据权利要求10所述的方法，其特征在于，所述会话管理网元根据所述接入信息确定第一session-AMBR信息，包括：
    所述会话管理网元根据所述接入信息和第二配置信息确定第一session-AMBR信息，所述第二配置信息包括使用NR接入对应的session-AMBR信息或不使用NR接入对应的session-AMBR信息。
  13. 根据权利要求11所述的方法，其特征在于，所述第一消息还包括第二session-AMBR信息，所述第二session-AMBR信息为主网络节点建议的session-AMBR信息；
    所述会话管理网元根据所述接入信息确定第一session-AMBR信息，包括：
    所述会话管理网元根据所述接入信息和所述第二session-AMBR信息确定第一session-AMBR信息。
  14. 根据权利要求10-13任一项所述的方法，其特征在于，所述方法还包括：
    所述会话管理网元向用户面网元发送所述第一session-AMBR信息，所述第一session-AMBR信息用于对数据传输速率进行控制。
  15. 根据权利要求10-13任一项所述的方法，其特征在于，所述方法还包括：
    所述会话管理网元向策略管理网元发送策略更新请求，所述策略更新请求包括所述接入信息和所述第一session-AMBR信息，所述接入信息用于所述策略管理网元基于所述第一session-AMBR信息来确定第三session-AMBR信息；
    所述会话管理网元接收来自所述策略管理网元的策略更新响应，所述策略更新响应包括所述第三session-AMBR信息；
    所述会话管理网元向用户面网元发送所述第三session-AMBR信息，所述第三session-AMBR信息用于对数据传输速率进行控制。
  16. 根据权利要求15所述的方法，其特征在于，所述策略更新请求还包括第二session-AMBR信息，所述第二session-AMBR信息为主网络节点建议的session-AMBR信息，所述第二session-AMBR信息和所述接入信息用于所述策略管理网元基于所述第一session-AMBR信息来确定所述第三session-AMBR信息。
  17. 根据权利要求15所述的方法，其特征在于，所述策略更新响应还包括第四指示信息；
    所述方法还包括：
    所述会话管理网元通过所述接入管理网元向主网络节点发送所述第四指示信息，所述第四指示信息用于指示所述主网络节点是否为会话的服务质量流分配所述主网络节点的资源，或是否为会话的服务质量流分配辅网络节点的资源。
  18. 一种移动管理网元，其特征在于，包括第一处理单元和第二处理单元；
    所述第一处理单元，用于确定终端是否使用NR接入的接入信息；
    所述第二处理单元，用于根据所述接入信息确定第一接入点名称-聚合最大比特速率APN-AMBR信息。
  19. 根据权利要求18所述的移动管理网元，其特征在于，所述移动管理网元还包括收发单元；
    所述收发单元，用于接收来自主网络节点的第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示所述终端是否使用NR接入；
    所述第一处理单元，具体用于根据所述第一指示信息确定所述终端是否使用NR接入的接入信息。
  20. 根据权利要求18所述的移动管理网元，其特征在于，所述移动管理网元还包括收发单元；
    所述收发单元，用于接收来自主网络节点的第二消息，所述第二消息包括第二指示信息和所述终端的位置，所述第二指示信息用于指示所述主网络节点的双连接能力；还用于接收来自所述终端的第三指示信息，所述第三指示信息用于指示所述终端的双连接能力；
    所述第一处理单元，具体用于根据所述第二指示信息、所述终端的位置、所述第三指示信息和第一配置信息确定所述终端是否使用NR接入的接入信息；其中，第一配置信息包括跟踪区识别码和所述跟踪区识别码对应的跟踪区的双连接能力。
  21. 根据权利要求18所述的移动管理网元，其特征在于，所述第二处理单元，具体用于根据所述接入信息和第二配置信息确定第一APN-AMBR信息，所述第二配置信息包括使用 NR接入对应的APN-AMBR信息或不使用NR接入对应的APN-AMBR信息。
  22. 根据权利要求19所述的移动管理网元，其特征在于，所述第一消息还包括第二APN-AMBR信息，所述第二APN-AMBR信息为所述主网络节点建议的APN-AMBR信息；
    所述第二处理单元，具体用于根据所述接入信息和所述第二APN-AMBR信息确定第一APN-AMBR信息。
  23. 根据权利要求18所述的移动管理网元，其特征在于，所述移动管理网元还包括收发单元；
    所述收发单元，用于向服务网元发送第一承载管理请求，所述第一承载管理请求包括所述接入信息，以使所述服务网元向分组数据网元发送第二承载管理请求，所述第二承载管理请求包括所述接入信息，所述接入信息用于确定第三APN-AMBR信息，所述第三APN-AMBR信息用于所述分组数据网元对数据传输速率进行控制；还用于接收来自所述服务网元的第一承载管理响应，所述第一承载管理响应包括所述第三APN-AMBR信息。
  24. 一种会话管理网元，其特征在于，包括第一处理单元和第二处理单元；
    所述第一处理单元，用于确定终端是否使用NR接入的接入信息；
    所述第二处理单元，用于根据所述接入信息确定第一会话-聚合最大比特速率session-AMBR信息。
  25. 根据权利要求24所述的会话管理网元，其特征在于，所述会话管理网元还包括收发单元；
    所述收发单元，用于接收来自接入管理网元的第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示所述终端是否使用NR接入；
    所述第一处理单元，具体用于根据所述第一指示信息确定所述终端是否使用NR接入的接入信息。
  26. 根据权利要求24所述的会话管理网元，其特征在于，所述第二处理单元，具体用于根据所述接入信息和第二配置信息确定第一session-AMBR信息，所述第二配置信息包括使用NR接入对应的session-AMBR信息或不使用NR接入对应的session-AMBR信息。
  27. 根据权利要求25所述的会话管理网元，其特征在于，所述第一消息还包括第二session-AMBR信息，所述第二session-AMBR信息为主网络节点建议的session-AMBR信息；
    所述第二处理单元，具体用于根据所述接入信息和所述第二session-AMBR信息确定第一session-AMBR信息。
  28. 根据权利要求24所述的会话管理网元，其特征在于，所述会话管理网元还包括收发单元；
    所述收发单元，用于向策略管理网元发送策略更新请求，所述策略更新请求包括所述接入信息和所述第一session-AMBR信息，所述接入信息用于所述策略管理网元基于所述第一session-AMBR信息来确定第三session-AMBR信息；接收来自所述策略管理网元的策略更新响应，所述策略更新响应包括所述第三session-AMBR信息；向用户面网元发送所述第三session-AMBR信息，所述第三session-AMBR信息用于对数据传输速率进行控制。
  29. 一种速率调整系统，其特征在于，包括移动管理网元和主网络节点；
    所述主网络节点，用于向所述移动管理网元发送第一消息；
    所述移动管理网元，用于接收所述第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示所述终端是否使用NR接入；根据所述第一指示信息确定所述终端是否使用NR接入的接入信息；根据所述接入信息确定第一接入点名称-聚合最大比特速率APN-AMBR信息。
  30. 根据权利要求29所述的系统，其特征在于，所述系统还包括服务网元和分组数据网元；
    所述服务网元，用于接收来自所述移动管理网元的第一承载管理请求，所述第一承载管理请求包括所述接入信息；向所述分组数据网元发送第二承载管理请求，所述第二承载管理请求包括所述接入信息；
    所述分组数据网元，用于根据所述接入信息确定第三APN-AMBR信息；向所述服务网元发送第二承载管理响应，所述第二承载管理响应包括所述第三APN-AMBR信息，所述第三APN-AMBR信息用于对数据传输速率进行控制；
    所述服务网元，还用于向所述移动管理网元发送第一承载管理响应，所述第一承载响应包括所述第三APN-AMBR信息。
  31. 根据权利要求29所述的系统，其特征在于，所述系统还包括服务网元、分组数据网元和策略规则网元；
    所述服务网元，用于接收来自所述移动管理网元的第一承载管理请求，所述第一承载管理请求包括所述接入信息；向所述分组数据网元发送第二承载管理请求，所述第二承载管理请求包括所述接入信息；
    所述分组数据网元，用于向所述策略规则网元发送IP连接接入网IP-CAN会话管理请求，所述IP-CAN会话管理请求包括所述接入信息；
    所述策略规则网元，用于根据所述接入信息确定第三APN-AMBR信息；向所述分组数据网元发送IP-CAN会话管理响应，所述IP-CAN会话管理响应包括所述第三APN-AMBR信息，所述第三APN-AMBR信息用于对数据传输速率进行控制；
    所述分组数据网元，还用于向所述服务网元发送第二承载管理响应，所述第二承载管理响应包括所述第三APN-AMBR信息；
    所述服务网元，还用于向所述移动管理网元发送第一承载管理响应，所述第一承载响应包括所述第三APN-AMBR信息。
  32. 一种速率调整系统，其特征在于，包括接入管理网元和会话管理网元；
    所述接入管理网元，用于获取第一指示信息，所述第一指示信息用于指示终端是否使用NR接入；
    所述会话管理网元，用于接收来自所述接入管理网元的所述第一消息，所述第一消息包括所述第一指示信息；
    所述会话管理网元，还用于根据所述第一指示信息确定第一会话-聚合最大比特速率session-AMBR信息。
  33. 根据权利要求32所述的系统，其特征在于，所述系统还包括主网络节点；
    所述接入管理网元，还用于接收来自所述主网络节点的所述第一指示信息。
  34. 根据权利要求32所述的系统，其特征在于，所述系统还包括主网络节点；
    所述接入管理网元，还用于接收来自所述主网络节点的第二消息，所述第二消息包括第二指示信息和所述终端的位置，所述第二指示信息用于指示所述主网络节点的双连接能力；接收来自所述终端的第三指示信息，所述第三指示信息用于指示所述终端的双连接能力；根据所述第二指示信息、所述终端的位置、所述第三指示信息和第一配置信息确定所述终端是否使用NR接入的第一指示信息；
    其中，第一配置信息包括跟踪区识别码和所述跟踪区识别码对应的跟踪区的双连接能力。
  35. 根据权利要求32-34任一项所述的系统，其特征在于，所述系统还包括策略管理网元；
    所述策略管理网元，用于接收来自所述会话管理网元的策略更新请求，所述策略更新请求包括所述第一指示信息和所述第一session-AMBR信息；基于所述第一session-AMBR信息根据所述第一指示信息确定第三session-AMBR信息；向所述会话管理网元发送策略更新响应，所述策略更新响应包括所述第三session-AMBR信息。
  36. 一种移动管理网元，其特征在于，包括：处理器和存储器；所述存储器用于存储计算机执行指令，当所述移动管理网元运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述移动管理网元执行如权利要求1-9任一项所述的速率调整方法。
  37. 一种会话管理网元，其特征在于，包括：处理器和存储器；所述存储器用于存储计算机执行指令，当所述会话管理网元运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述会话管理网元执行如权利要求10-17任一项所述的速率调整方法。
  38. 一种处理装置，其特征在于，包括：
    存储器，用于存储计算机程序；
    处理器，用于从所述存储器调用并运行所述计算机程序，以执行如权利要求1-9任一项，或权利要求10-17任一项所述的方法。
  39. 一种处理器，其特征在于，用于执行如权利要求1-9任一项，或权利要求10-17任一项所述的方法。
  40. 一种芯片系统，其特征在于，包括：
    存储器，用于存储计算机程序；
    处理器，用于从所述存储器调用并运行所述计算机程序，使得安装有所述芯片系统的设备执行如权利要求1-9任一项，或权利要求10-17任一项所述的方法。
  41. 一种计算机可读存储介质，包括计算机程序，当其在计算机上运行时，使得所述计算机执行如权利要1-9任一项，或权利要求10-17任一项所述的方法。
  42. 一种计算机程序产品，所述计算机程序产品包括计算机程序，当所述计算机程序在计算机上运行时，使得计算机执行如权利要求1-9任一项，或权利要求10-17任一项所述的方法。
  43. 一种用来执行权利要求1-9任一项，或权利要求10-17任一项所述的方法的装置。
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