WO2018045928A1 - 网络拥塞控制的方法及装置 - Google Patents

网络拥塞控制的方法及装置 Download PDF

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Publication number
WO2018045928A1
WO2018045928A1 PCT/CN2017/100365 CN2017100365W WO2018045928A1 WO 2018045928 A1 WO2018045928 A1 WO 2018045928A1 CN 2017100365 W CN2017100365 W CN 2017100365W WO 2018045928 A1 WO2018045928 A1 WO 2018045928A1
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type
pdn
access timer
delayed access
timer
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PCT/CN2017/100365
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English (en)
French (fr)
Inventor
卢飞
李志军
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中兴通讯股份有限公司
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Publication of WO2018045928A1 publication Critical patent/WO2018045928A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control

Definitions

  • the present application relates to the field of wireless communications, and more particularly to a method and apparatus for network congestion control.
  • Figure 1 is a schematic diagram of a 4G network architecture.
  • the functions of the network elements in the network architecture shown in Figure 1 are as follows:
  • the terminal accesses the 4G network through the wireless air interface and obtains the service.
  • the terminal exchanges information through the air interface and the base station, and performs mobility management through the non-access stratum signaling (NAS, Non-Access Stratum) and the core network. Entity interaction information.
  • NAS non-access stratum signaling
  • NAS Non-Access Stratum
  • the base station (RAN, Radio Access Network) is responsible for the air interface resource scheduling of the terminal access network and the connection management of the air interface.
  • Mobile management unit is the core network control plane entity, which is mainly responsible for authentication, authorization and contract checking of users to ensure that users are legitimate users; user mobility management, including location registration and temporary identification allocation; maintenance idle (IDLE), CONNECT state and state transition; handover in CONNECT state; packet data network (PDN) connection and bearer maintenance, including session management functions such as creation, modification, and deletion; and paging triggered in user IDLE state.
  • IDL maintenance idle
  • PDN packet data network
  • Serving GW The core network user plane function entity, which is mainly responsible for the interaction with the PDN gateway (GW) in the case of roaming; receiving the downlink data packet for buffering in the IDLE state and notifying the mobility management entity (MME, Mobile Management Entity) Paging users; user plane anchors across base stations and user plane anchors across 2G/3G/4G mobility.
  • MME Mobile Management Entity
  • Packet Data Gateway (PDN GW): The core network user plane function entity is the access point of the terminal accessing the PDN network. It is responsible for assigning user IP addresses, establishing, modifying and deleting bearers triggered by the network, and also having quality of service (Quality of Service). , QoS) control billing and other functions, is the user An anchor point for switching between the 3GPP system and the 3GPP system and the non-3GPP system, thereby ensuring that the IP address is unchanged and ensuring business continuity.
  • QoS Quality of Service
  • SCEF Service Capability Exposure Function
  • FIG. 2 is a process in which a UE requests to establish a PDN connection in a 4G network, and the steps include the following:
  • Step 201 After the UE attaches, the UE sends a PDN connection establishment request message to the MME, where the message carries the PDN type, and the PDN type includes an IP type such as IPv4, IPv6, or IPv4v6, and the PDN type may also be a non-IP type; APN can also be carried in the middle;
  • the MME selects the PGW to serve according to the PDN type and the access point name (APN, Access Point Name) in step 201.
  • the PDN type is a non-IP type
  • the MME may also select the SCEF to serve it; if step 201
  • the message does not carry the APN, then the MME selects the default APN as its service, and selects the PGW or SCEF according to the default APN.
  • the MME selects the PGW, the MME sends a setup session request message to the PGW, where the message carries the user's International Mobile Subscriber Identity (IMSI), the PDN type, the bearer ID, and the tunnel ID.
  • IMSI International Mobile Subscriber Identity
  • the MME selects the SCEF The MME sends a SCEF connection request message to the SCEF, where the message carries the IMSI, the PDN type, and the MME identity.
  • Step 203 The PGW returns a setup session response message to the MME, where the message carries an uplink PGW tunnel ID, and the SCEF returns a SCEF connection response message to the MME.
  • Step 204 The MME sends a NAS activation default bearer request message to the UE, where the message carries a bearer ID, a bearer QoS, and the like.
  • Step 205 The UE returns an active default bearer accept message to the MME.
  • APN congestion control On an APN, as shown in Figure 3. Shown is a method for implementing this congestion control, which mainly includes the following steps:
  • Steps 301-302 the same steps 201-202;
  • Step 303 The PGW or the SCEF cannot accept the new PDN connection establishment because the load is too high, and the PGW or the SCEF returns a setup session response message or a SCEF connection response message to the MME, where the message carries the reject cause value and the APN-related delayed access timing.
  • Step 304 The MME returns a PDN connection establishment reject message to the UE, where the message carries the reject cause value and the APN-related delayed access timer.
  • the UE starts the APN-based delayed access timer T3396 (APN).
  • the timer T3396 API
  • the UE cannot initiate the PDN-related PDN establishment request request or the resource modification signaling.
  • the UE When the UE establishes a PDN connection, if the UE does not carry the APN (step 301), the UE initiates a delay access timer T3396 (no APN) based on no APN (no APN), when T3396 (no APN) is running, The UE cannot initiate a resource modification operation in which the PDN connection that does not carry the APN is established or cannot initiate the PDN connection (if the APN is not carried when the PDN connection is established).
  • T3396 delay access timer
  • the MME may select different types of PGW or SCEF for connection; and when the PDN type is IP or non-IP, the UE lacks.
  • the APN may be a different APN. Therefore, the T3396 based on the APN may cause all types of PDN connections of the UE to fail to obtain services within a certain period of time.
  • the UE may also directly consider that the APNs corresponding to different PDN types are different APNs. However, if the network side selects the same PGW or SCEF for different types of PDN connections, this may also cause excessive retry signaling, which not only wastes network resources. And it is also difficult to avoid APN-related congestion in the network.
  • Embodiments of the present invention provide a method and apparatus for network congestion control.
  • the embodiment of the invention provides a method for network congestion control, including:
  • the user equipment UE receives a session management message from the network side, where the session management message carries a delayed access timer, and indicates a packet data network PDN type corresponding to the delayed access timer;
  • the UE starts the delayed access timer, and performs other PDN type connection operations when the delayed access timer is running, where the other PDN types are PDN types other than the PDN type corresponding to the delayed access timer. .
  • the PDN type includes an IP type and a non-IP type.
  • Performing other PDN type connection operations when the delayed access timer is running including one or more of the following:
  • the UE When the delayed access timer corresponds to an IP type, the UE performs a connection operation of a non-IP type PDN when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to a non-IP type, the UE performs a connection operation of an IP type PDN when the delayed access timer is running.
  • the method further includes:
  • the UE When the delayed access timer is running, the UE does not perform a PDN type connection operation corresponding to the delayed access timer.
  • the PDN type includes an IP type and a non-IP type.
  • the PDN connection operation of the PDN type corresponding to the delayed access timer is not performed by the UE, including one or more of the following:
  • the UE When the delayed access timer corresponds to an IP type, the UE does not perform an operation of establishing and initiating a modification to an IP type PDN connection when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to a non-IP type, the UE does not perform an operation of establishing and initiating a modification to a non-IP type PDN connection when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to an IP type and a non-IP type, the UE does not perform an operation of establishing and initiating a modification for all types of PDN connections when the delayed access timer is running.
  • the operation of establishing and initiating the modification is not performed, and: one or more of the following NAS are not sent:
  • the method further includes:
  • the UE Upon receiving the non-access stratum signaling NAS from the network side, the UE stops the corresponding delayed access timer, and the corresponding delayed access timer is the same as the PDN type of the NAS.
  • the UE stops the corresponding delayed access timer when receiving the non-access stratum signaling NAS from the network side, including one or more of the following:
  • the delayed access timer of the operation corresponds to the IP type
  • the delayed access timer is stopped when receiving the NAS of the IP type PDN connection
  • the delayed access timer is stopped when receiving the NAS of the non-IP type PDN connection;
  • the delayed access timer is stopped when receiving the IP type or the non-IP type PDN connected NAS.
  • the embodiment of the present invention further provides an apparatus for network congestion control, which is applied to a user equipment UE, and includes:
  • a first receiving unit configured to receive a session management message from the network side, where the session management message carries a delayed access timer, and indicates a packet data network PDN type corresponding to the delayed access timer;
  • Activating unit configured to start the delayed access timer
  • an execution unit configured to perform another PDN type connection operation when the delay access timer is running; wherein the other PDN type is a PDN type other than the PDN type corresponding to the delayed access timer.
  • the PDN type includes an IP type and a non-IP type.
  • the executing unit is configured to perform operations of other PDN type connections when the delayed access timer is running, including one or more of the following:
  • the UE When the delayed access timer corresponds to an IP type, the UE performs a connection operation of a non-IP type PDN when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to a non-IP type, the UE performs a connection operation of an IP type PDN when the delayed access timer is running.
  • the execution unit is further configured to not perform a connection operation of a PDN type corresponding to the delayed access timer when the delayed access timer is running.
  • the first receiving unit is further configured to receive a non-access stratum signaling NAS from the network side;
  • the method further includes: stopping the unit, configured to stop the corresponding delayed access timer according to the NAS received by the first receiving unit, where the corresponding delayed access timer is the same as the PDN type of the NAS.
  • the stopping unit is configured to stop the corresponding delayed access timer according to the NAS received by the first receiving unit, including one or more of the following:
  • the NAS receiving the IP address type PDN connection of the first receiving unit stops the delayed access timer
  • the NAS received by the first receiving unit stops the delayed access timer when it corresponds to the non-IP type PDN connection;
  • the delayed access timer of the operation corresponds to the IP type and the non-IP type
  • the delayed access timer is stopped when the NAS receives the corresponding IP type or non-IP type PDN connection.
  • An embodiment of the present invention further provides an apparatus for network congestion control, which is applied to a user equipment UE, including: a processor and a memory; the memory is used to store a program for network congestion control, and the processor is used to read The program for network congestion control is taken to perform the following operations:
  • the session management message carries a delayed access timer, and indicates a packet data network PDN type corresponding to the delayed access timer;
  • the delay access timer is started, and other PDN type connection operations are performed when the delayed access timer is running, and the other PDN types are PDN types other than the PDN type corresponding to the delayed access timer.
  • the embodiment of the invention further provides another method for network congestion control, including:
  • the mobility management unit sends a session management message to the user equipment UE, where the session management message carries a delayed access timer, and indicates a packet data network PDN type corresponding to the delayed access timer, so that the UE is in the delayed access Other PDN type connection operations are performed while the timer is running, and the other PDN types are PDN types other than the PDN type corresponding to the delayed access timer.
  • the session management message is a PDN connection establishment rejection message.
  • the method Before sending the session management message to the UE, the method further includes:
  • the mobility management unit receives a setup session response message from the packet data gateway PGW or the network service capability open function entity SCEF or establishes a SCEF connection response message, where the establishment of the session response message or the establishment of the SCEF connection response message carries the delayed access The timer and its corresponding PDN type.
  • the method further includes: the mobility management unit sends a session management message to the UE, where the session management message is a non-access stratum signaling NAS, so that the UE stops the corresponding delayed access timer according to the NAS,
  • the corresponding delayed access timer is the same as the PDN type of the NAS.
  • the session management message is an activated dedicated bearer request message.
  • the mobility management unit is a mobility management entity MME, a serving GPRS (General Packet Radio Service) support node, a control plane mobility management entity, or a control plane session management entity.
  • MME mobility management entity
  • GPRS General Packet Radio Service
  • An embodiment of the present invention further provides an apparatus for network congestion control, which is applied to a mobility management unit, and includes:
  • a first sending unit configured to send a session management message to the user equipment UE, where the session management message carries a delayed access timer, and indicates a packet data network PDN type corresponding to the delayed access timer, so that the UE is in the When the delayed access timer is running, other PDN type connection operations are performed, and the other PDN types are PDN types other than the PDN type corresponding to the delayed access timer.
  • the first sending unit is further configured to send a session management message to the UE, where the session management message is a non-access stratum signaling NAS, so that the UE stops according to the NAS.
  • the delayed access timer should be the same, and the corresponding delayed access timer is the same as the PDN type of the NAS.
  • the method further includes: receiving, by the second receiving unit, a setup session response message from the packet data gateway PGW or the network service capability open function entity SCEF or establishing an SCEF connection response message, the establishing a session response message or establishing a SCEF connection response message
  • the delay access timer and its corresponding PDN type are carried in the middle.
  • An embodiment of the present invention further provides an apparatus for network congestion control, which is applied to a mobility management unit, including: a processor and a memory; the memory is configured to store a program for network congestion control, and the processor is configured to read The program for network congestion control is taken to perform the following operations:
  • the session management message carries a delayed access timer, and indicates a packet data network PDN type corresponding to the delayed access timer, so that the UE runs in the delayed access timer
  • the other PDN type connection operations are performed, and the other PDN types are PDN types other than the PDN type corresponding to the delayed access timer.
  • the embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, the method for implementing the network congestion control described above when the computer executable instructions are executed.
  • the embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, the method for implementing another network congestion control described above when the computer executable instructions are executed.
  • the network congestion control method provided by the embodiment of the present invention implements APN congestion control for the PDN type, avoids excessive retry signaling, and causes all PDNs of the PDN type to be inaccessible when a certain PDN type is congested. Case.
  • Figure 1 is a schematic diagram of a 4G network architecture
  • FIG. 2 is a schematic flowchart of a request for a PDN connection by a UE in a 4G network
  • FIG. 3 is a schematic flowchart of network congestion control in a 4G network
  • FIG. 4 is a schematic flowchart of a network congestion control method according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic flowchart of implementing network congestion control according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic flowchart of implementing network congestion control according to Embodiment 4 of the present invention.
  • FIG. 7 is a schematic flowchart of implementing network congestion control according to Embodiment 5 of the present invention.
  • FIG. 8 is a schematic structural diagram of a device for network congestion control according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of another apparatus for network congestion control according to an embodiment of the present invention.
  • the present application provides a method for network congestion control, which may include:
  • Step 401 The UE receives a session management message from the network side, where the session management message carries a delayed access timer, and indicates a PDN type corresponding to the delayed access timer.
  • Step 402 The UE starts the delayed access timer, and performs other PDN type connection operations when the delayed access timer is running, where the other PDN types are outside the PDN type corresponding to the delayed access timer. PDN type.
  • the PDN type connection operation is performed according to the PDN type of the delayed access timer, and the PDN operation of other PDN types is continued after the delay access timer is started, and the APN congestion control corresponding to different PDN types is implemented. And avoiding too many retry signaling, and when all PDN types are congested, all PDNs of the PDN type cannot access the service, saving network resources, and the efficiency of congestion control is also improved.
  • the UE starting the delayed access timer may include: if the delayed access timer is based on an APN, and the UE has learned the APN or the session management message indicates If the APN is delayed by the access timer, the UE may start a delay timer based on the APN; if the UE does not know the APN and the session management message does not indicate the APN corresponding to the delayed access timer, then The UE may initiate a delay access timer based on no APN.
  • the PDN type may include an IP type and a non-IP type; perform other PDN type connection operations when the delayed access timer is running, including one or more of the following:
  • the UE When the delayed access timer corresponds to an IP type, the UE performs a connection operation of a non-IP type PDN when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to a non-IP type, the UE performs a connection operation of an IP type PDN when the delayed access timer is running.
  • the connection operation involved when performing other PDN type connection operations when the delay access timer is running, may be an operation of establishing and initiating a modification, and the connection operation may include: initiating a PDN connection establishment request. Or initiate signaling of resource modification.
  • the UE may perform the following during the operation of the delayed access timer:
  • the UE may still send an operation of establishing a non-IP PDN connection establishment or resource modification;
  • the UE may still send an operation of establishing a PDN connection establishment or resource modification of the IP;
  • the UE does not perform an operation of establishing and initiating a modification for all types of APN connections.
  • the method may further include: when the delayed access timer is running, the UE does not perform a PDN type connection operation corresponding to the delayed access timer.
  • the PDN connection operation of the PDN type corresponding to the delayed access timer is not performed by the UE, including one or more of the following:
  • the UE When the delayed access timer corresponds to an IP type, the UE does not perform an operation of establishing and initiating a modification to an IP type PDN connection when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to a non-IP type, the UE does not perform an operation of establishing and initiating a modification to a non-IP type PDN connection when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to an IP type and a non-IP type, the UE does not perform an operation of establishing and initiating a modification for all types of PDN connections when the delayed access timer is running.
  • the performing the establishing and initiating the modifying operation includes: not transmitting one or more of the following NAS: 1) a PDN connection establishment request; 2) resource modification signaling.
  • the method may further include: when receiving the non-access stratum signaling NAS from the network side, the UE stops the corresponding delayed access timer.
  • the corresponding delayed access timer is the same as the PDN type of the NAS.
  • the UE when receiving the non-access stratum signaling NAS from the network side, the UE stops the corresponding delayed access timer, including one or more of the following:
  • the delayed access timer of the operation corresponds to the IP type
  • the delayed access timer is stopped when receiving the NAS of the IP type PDN connection
  • the delayed access timer is stopped when receiving the NAS of the non-IP type PDN connection;
  • the delayed access timer is stopped when receiving the IP type or the non-IP type PDN connected NAS.
  • the UE may stop the delayed access timer, including:
  • the UE stops the delayed access timer when receiving the PDN connected NAS of the IP type;
  • the UE stops the delayed access timer when receiving a non-IP type PDN connected NAS;
  • the UE stops the delayed access timer when receiving a PDN-connected NAS of a non-IP type or IP type.
  • the present application further provides another network congestion control method, which may include:
  • the mobility management unit sends a session management message to the UE, where the session management message carries a delayed access timer, and indicates a PDN type corresponding to the delayed access timer, so that the UE performs when the delayed access timer is running.
  • Other PDN type connection operations the other PDN types being PDN types other than the PDN type corresponding to the delayed access timer.
  • the session management message may establish a reject message for the PDN connection.
  • the method may further include: the mobility management unit receiving the setup session response message from the PGW or the SCEF or establishing a SCEF connection response message, where the establishing the session response message or establishing the SCEF connection response message is carried The delayed access timer and its corresponding PDN type.
  • the method may further include: the mobility management unit sends a session management message to the UE, where the session management message is a NAS, so that the UE stops the corresponding delayed access timer according to the NAS, The corresponding delayed access timer is the same as the PDN type of the NAS.
  • the session management message is an activation of a dedicated bearer request message.
  • the mobility management unit carries a delayed access timer in a session management message (such as a PDN connection establishment reject message; activating a dedicated bearer request message), and indicates the type corresponding to the delayed access timer (eg, for IP) Type and/or non-IP type); wherein the mobility management unit may be an MME in a 4G system, a Serving GPRS Support Node (SGSN) in a 3G system, and a control plane movement in a 5G system. Management entity or control plane session management entity.
  • a session management message such as a PDN connection establishment reject message; activating a dedicated bearer request message
  • the mobility management unit may be an MME in a 4G system, a Serving GPRS Support Node (SGSN) in a 3G system, and a control plane movement in a 5G system.
  • SGSN Serving GPRS Support Node
  • Management entity or control plane session management entity Management entity or control plane session management entity.
  • the UE performs the PDN type connection operation according to the PDN type of the delayed access timer, and continues to perform other PDN type PDN operations after the delayed access timer is started, and not only implements APNs corresponding to different PDN types.
  • the process of network congestion control in this embodiment may include the following steps:
  • Step 501 After the UE attaches, the UE sends a PDN connection establishment request message to the MME, where the message carries the PDN type, and the PDN type includes an IP type such as IPv4, IPv6, or IPv4v6, and the PDN type may also be a non-IP type; the message may also carry the APN. ;
  • Step 502 The MME selects the PGW to serve according to the PDN type and the APN in the step 501. If the PDN type is a non-IP type, the MME may also select the SCEF to serve the MME. If the message is not carried in the step 501, the MME selects the MME. The provincial APN serves it and selects PGW or SCEF according to the default APN. If the MME selects the PGW, the MME sends a setup session request message to the PGW, where the message carries the IMSI, the PDN type, the bearer ID, and the tunnel ID of the user. If the MME selects the SCEF, the MME sends a SCEF connection request message to the SCEF, in the message. Carry IMSI, PDN type and MME identity.
  • Step 503 The PGW or the SCEF cannot accept the new PDN connection establishment because the load is too high, and the PGW or the SCEF returns a setup session response message or a SCEF connection response message to the MME, where the message carries the reject reason value and the APN-related delayed access timing. , PGW or SCEF simultaneously indicates that this delayed access timer is a PDN connection only for IP type and/or a PDN connection for non-IP type;
  • Step 504 The MME returns a PDN connection establishment reject message to the UE, where the message carries the reject reason value and the APN-related delayed access timer, and indicates that the APN-related delayed access timer is for the IP type PDN connection and/or For non-IP type PDN connections;
  • the UE initiates a PDN connection based on the APN for the IP type and/or a delay access timer T3396 (APN, PDN type) for the non-IP type PDN connection.
  • T3396 APN, PDN type
  • the signaling related to the PDN establishment request or resource modification of the PPN type may continue to initiate signaling of the PDN establishment request or resource modification that is not related to the PDN type.
  • the UE When the UE establishes a PDN connection, if the PDN connection establishment reject message does not carry the APN, the UE initiates a delayed access timer based on the APN-free (no APN) for the IP type PDN connection and/or for the non-IP type PDN connection.
  • T3396 no APN, PDN class Type
  • the UE when T3396 (no APN, PDN type) is running, the UE cannot initiate resource modification of the PDN connection with the PDN type that does not carry the APN or cannot initiate such a PDN connection (if the APN is not carried when the PDN connection is established) Operation, but it is still possible to initiate a PDN connection establishment or resource modification operation that is not the PDN type that does not carry the APN.
  • the UE may still perform operations such as establishing a non-IP PDN connection establishment or resource modification, and performing an operation of establishing and initiating a modification on the IP type PDN connection; 2) If the delayed access timer is for a non-IP type, the UE may still send an operation of establishing a PDN connection establishment or resource modification of the IP, and perform an operation of establishing and initiating a modification for a non-IP type PDN connection; 3) The delayed access timer is for IP type and non-IP type, then the UE does not perform the operation of establishing and initiating modification for all types of APN connections.
  • the process of network congestion control in this embodiment may include the following steps:
  • Step 601 After the UE attaches, the UE sends a PDN connection establishment request message to the MME, where the message carries the PDN type, and the PDN type includes an IP type such as IPv4, IPv6, or IPv4v6, and the PDN type may also be a non-IP type; the message may also carry the APN. ;
  • Step 602 If the MME does not find a suitable PGW or the SCEF serves the UE, the MME directly returns a PDN connection establishment reject message to the UE, where the message carries the reject reason value and the APN-related delayed access timer, and indicates the APN-related delay.
  • the access timer is for an IP type PDN connection and/or for a non-IP type PDN connection;
  • the UE initiates a PDN connection based on the APN for the IP type and/or a delay access timer T3396 (APN, PDN type) for the non-IP type PDN connection.
  • T3396 APN, PDN type
  • the signaling related to the PDN establishment request or resource modification of the PPN type may continue to initiate signaling of the PDN establishment request or resource modification that is not related to the PDN type.
  • the UE When the UE establishes a PDN connection, if the PDN connection establishment reject message does not carry the APN, the UE initiates a PDN connection for the IP type based on the APN-free (no APN) and/or Or a delayed access timer T3396 (no APN, PDN type) for a non-IP type PDN connection.
  • the PDN connection establishment reject message does not carry the APN
  • the UE initiates a PDN connection for the IP type based on the APN-free (no APN) and/or Or a delayed access timer T3396 (no APN, PDN type) for a non-IP type PDN connection.
  • T3396 no APN, PDN type
  • the UE cannot initiate a PDN connection establishment with a PDN type that does not carry an APN or A resource modification operation of such a PDN connection (if the APN is not carried when the PDN connection is established) cannot be initiated, but a PDN connection establishment or resource modification operation that is not the PDN type that does not carry the APN can still be initiated.
  • the UE may still perform operations such as establishing a non-IP PDN connection establishment or resource modification, and performing an operation of establishing and initiating a modification on the IP type PDN connection; 2) If the delayed access timer is for a non-IP type, the UE may still send an operation of establishing a PDN connection establishment or resource modification of the IP, and perform an operation of establishing and initiating a modification for a non-IP type PDN connection; 3) The delayed access timer is for IP type and non-IP type, then the UE does not perform the operation of establishing and initiating modification for all types of APN connections.
  • the flow of network congestion control in this embodiment may include the following steps:
  • Step 701 The PGW sends a setup bearer request message to the MME, or the SCEF sends a SCEF connection update request message to the MME.
  • Step 702 The MME sends an activate dedicated bearer request message to the UE, where the message carries the bearer ID and the bearer QoS.
  • Step 703 After receiving the activation of the dedicated bearer request, the UE stops the delayed access timer corresponding to the corresponding PDN type.
  • the UE If the current PDN connection is of a non-IP type, the UE performs an APN-based T3396 timer for the non-IP type, the UE stops the T3396 timer, so that the UE can initiate a non-IP type PDN connection establishment or resource modification;
  • the UE stops the T3396 timer, so that the UE can initiate an IP type PDN connection establishment or resource modification;
  • the UE stops the T3396 timer, so that the UE can initiate an IP type or a non-IP type PDN. Connection establishment or resource modification;
  • the T3396 timer running by the UE is for a non-IP type, and the T3396 timer running by the UE continues to run;
  • the T3396 timer running by the UE is for the IP type, and the T3396 timer running by the UE continues to run;
  • Step 704 The UE returns an activation bearer accept message to the MME.
  • Step 705 The MME returns a bearer setup response message or returns a SCEF connection update response message to the PGW.
  • the UE may stop the corresponding delayed access timer according to the PDN type of the NAS, thus implementing APN congestion control for the PDN type, avoiding the situation of excessive retry signaling, and saving network resources.
  • the efficiency of congestion control has also improved.
  • an apparatus for network congestion control is applied to the UE, which may include:
  • the first receiving unit 81 is configured to receive a session management message from the network side, where the session management message carries a delayed access timer, and indicates a packet data network PDN type corresponding to the delayed access timer;
  • the starting unit 82 is configured to start the delayed access timer
  • the executing unit 83 is configured to perform another PDN type connection operation when the delayed access timer is running; wherein the other PDN types are PDN types other than the PDN type corresponding to the delayed access timer.
  • the PDN type includes an IP type and a non-IP type; and the executing unit 83 is configured to perform an operation of another PDN type connection when the delay access timer is running, including one of the following or Multiple:
  • the UE When the delayed access timer corresponds to an IP type, the UE performs a connection operation of a non-IP type PDN when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to a non-IP type, the UE performs a connection operation of an IP type PDN when the delayed access timer is running.
  • the execution unit 83 may be further configured to not perform a PDN type connection operation corresponding to the delayed access timer when the delay access timer is running.
  • the PDN connection operation of the PDN type corresponding to the delayed access timer is not performed by the UE, including one or more of the following:
  • the UE When the delayed access timer corresponds to an IP type, the UE does not perform an operation of establishing and initiating a modification to an IP type PDN connection when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to a non-IP type, the UE does not perform an operation of establishing and initiating a modification to a non-IP type PDN connection when the delayed access timer is running;
  • the UE When the delayed access timer corresponds to an IP type and a non-IP type, the UE does not perform an operation of establishing and initiating a modification for all types of PDN connections when the delayed access timer is running.
  • the first receiving unit 81 may be further configured to receive a non-access stratum signaling NAS from the network side;
  • the apparatus may further include: a stopping unit 82 configured to stop the corresponding delayed access timer according to the NAS received by the first receiving unit 81, the corresponding delayed access timer and the PDN type of the NAS the same.
  • the stopping unit 82 may be configured to stop the corresponding delayed access timer according to the NAS received by the first receiving unit, including one or more of the following:
  • the delayed access timer of the operation corresponds to the IP type
  • the NAS received by the first receiving unit 81 corresponds to the IP type PDN
  • the delayed access timer is stopped;
  • the NAS received by the first receiving unit 81 stops the delayed access timer when it corresponds to the non-IP type PDN connection;
  • the delayed access timer of the operation corresponds to the IP type and the non-IP type
  • the delayed access timer is stopped when the NAS corresponding to the IP type or the non-IP type PDN connection received by the first receiving unit 81.
  • the first receiving unit 81, the starting unit 82, the executing unit 83, and the stopping unit 84 may be software, hardware, or a combination of the two, respectively.
  • the first receiving unit 81 can be implemented by a receiving device
  • the starting unit 82, the executing unit 83, and the stopping unit 84 can be implemented by a processor.
  • the foregoing device may be configured to be used on the UE, or may be implemented directly by the UE.
  • the UE herein may be a mobile phone, a PC or other electronic device having communication functions and the functions described in the above units.
  • a device for network congestion control applied to a user equipment UE, comprising: a processor and a memory; the memory is for storing a program for network congestion control, the processor is for reading The program for network congestion control is taken to perform the following operations:
  • the session management message carries a delayed access timer, and indicates a PDN type corresponding to the delayed access timer
  • the delay access timer is started, and other PDN type connection operations are performed when the delayed access timer is running, and the other PDN types are PDN types other than the PDN type corresponding to the delayed access timer.
  • the foregoing device for network congestion control can be used on the UE, and all processes of the method shown in FIG. 4 can be performed.
  • the implementation process is the same as the above method, and details are not described herein.
  • the embodiment provides an apparatus for network congestion control, which is applied to a mobility management unit, and includes:
  • the first sending unit 91 is configured to send a session management message to the UE, where the session management message carries a delayed access timer, and indicates a PDN type corresponding to the delayed access timer, so that the UE is in the delayed access Other PDN type connection operations are performed while the timer is running, and the other PDN types are PDN types other than the PDN type corresponding to the delayed access timer.
  • the session management message can establish a reject message for the PDN connection.
  • the apparatus may further include: a second receiving unit 92 configured to receive a setup session response message from the packet data gateway PGW or the network service capability open function entity SCEF or establish a SCEF connection.
  • the establishment of the session response message or the establishment of the SCEF connection response message carries the delayed access timer and its corresponding PDN type.
  • the first sending unit 91 may obtain the delayed access timer and its PDN type according to the message received by the second receiving unit 92, and may carry the delayed access timer when transmitting the PDN connection establishment reject message to the UE. Indicates its corresponding PDN type.
  • the first sending unit 91 may be further configured to send a session management message to the UE, where the session management message is a NAS, so that the UE stops the corresponding delayed access timer according to the NAS,
  • the corresponding delayed access timer is the same as the PDN type of the NAS.
  • the session management message can be activating a dedicated bearer request message.
  • an apparatus for network congestion control applied to a mobility management unit, comprising: a processor and a memory; the memory for storing a program for network congestion control, the processor being used for The program for network congestion control is read to perform the following operations:
  • the session management message carries a delayed access timer, and indicates a PDN type corresponding to the delayed access timer, so that the UE performs other PDN types when the delayed access timer is running.
  • the other PDN type is a PDN type other than the PDN type corresponding to the delayed access timer.
  • the first sending unit 91 may be software, hardware, or a combination of both.
  • the first sending unit 91 can be implemented by a transmitting device, and the above device can be implemented by being configured on the mobility management unit or directly by the mobility management unit.
  • the foregoing mobility management unit carries a delayed access timer in a session management message (such as a PDN connection establishment reject message; activating a dedicated bearer request message), and indicates a type corresponding to the delayed access timer (eg, For the IP type and/or non-IP type); wherein the mobility management unit may be the MME in the 4G system, and may be the Serving GPRS Support Node (SGSN) in the 3G system, which may be controlled in the 5G system.
  • SGSN Serving GPRS Support Node
  • the embodiment of the present application further provides a computer readable storage medium, where a computer is stored An executable instruction that implements the method of network congestion control of the first embodiment described above when the computer executable instructions are executed.
  • the embodiment of the present application further provides a computer readable storage medium, where a computer executable instruction is executed, and the method for implementing network congestion control of the second embodiment is implemented when the computer executable instruction is executed.
  • the computer readable storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic disk. Or a variety of media such as optical discs that can store program code.
  • the processor executes the method steps of the above embodiments in accordance with program code already stored in the storage medium.
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • This application is not limited to any specific combination of hardware and software.
  • the PDN type connection is performed according to the PDN type of the delayed access timer.
  • the execution of the operation is performed after the delay access timer is started, and the PDN operations of other PDN types are performed, which not only implements APN congestion control corresponding to different PDN types, but also avoids excessive retry signaling and congestion in a certain PDN type.
  • the network resources are saved, and the efficiency of congestion control is also improved.

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Abstract

本文公布了一种网络拥塞控制的方法及装置，包括：用户设备UE接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型；UE启动所述延迟接入定时器，在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。

Description

网络拥塞控制的方法及装置 技术领域
本申请涉及无线通信领域，尤指一种网络拥塞控制的方法及装置。
背景技术
移动通信目前已经发展到4G阶段。4G的网络架构和前几代相比，主要特点是基于全IP(Internet Protocol，网际互连协议)传输。
图1是一种4G网络架构的示意图。其中，图1所示网络架构中各网元的功能如下：
终端(UE，User Equipment)，主要通过无线空口接入4G网络并获得服务，终端通过空口和基站交互信息，通过非接入层信令(NAS，Non-Access Stratum)和核心网的移动性管理实体交互信息。
基站(RAN，Radio Access Network)，负责终端接入网络的空口资源调度以及空口的连接管理。
移动管理单元：是核心网控制面实体，主要负责对用户的鉴权、授权以及签约检查，以保证用户是合法用户；用户移动性管理，包括位置注册和临时标识分配；维护空闲(IDLE)、连接(CONNECT)状态以及状态迁移；在CONNECT状态下的切换；分组数据网络(PDN)连接以及承载的维护，包括创建、修改和删除等会话管理的功能；用户IDLE状态下触发寻呼等功能。
服务网关(Serving GW)：核心网用户面功能实体，主要负责漫游情况下和PDN网关(GW)的交互；用户IDLE状态下收到下行数据包进行缓存并通知移动管理实体(MME，Mobile Management Entity)寻呼用户；跨基站的用户面锚点以及跨2G/3G/4G移动性的用户面锚点等功能。
分组数据网关(PDN GW)：核心网用户面功能实体，是终端接入PDN网络的接入点，负责分配用户IP地址，网络触发的承载建立、修改和删除，还具有服务质量(Quality of Service，QoS)控制计费等功能，是用户在 3GPP系统内、以及3GPP系统和非3GPP系统之间切换的锚点，从而保证IP地址不变，保证业务连续性。
网络业务能力开放功能实体(Service Capability Exposure Function，SCEF)：其功能包括非IP数据传输授权检查、T6连接管理、上下行非IP数据投递。
图2是4G网络中UE请求建立PDN连接的过程，步骤包括如下：
步骤201，UE附着完成后，UE向MME发送PDN连接建立请求消息，消息中携带PDN类型，PDN类型包括IPv4、IPv6、IPv4v6等IP类型，PDN类型也可以是非IP(non-IP)类型；消息中也可以携带APN；
步骤202，MME根据步骤201中PDN类型及接入点名称(APN,Access Point Name)来选择PGW为其服务，如果PDN类型是非IP类型，那么MME也可以选择SCEF来为其服务；如果步骤201消息中没有携带APN，那么MME选择缺省APN为其服务，并根据缺省APN来选择PGW或者SCEF。如果MME选择的是PGW，MME向PGW发送建立会话请求消息，消息中携带用户的国际移动用户识别码(IMSI，International Mobile Subscriber Identity)，PDN类型，承载ID，隧道ID；如果MME选择了SCEF，MME向SCEF发送建立SCEF连接请求消息，消息中携带IMSI，PDN类型，MME标识。
步骤203，PGW向MME返回建立会话响应消息，消息中携带上行PGW隧道ID；SCEF向MME返回建立SCEF连接响应消息；
步骤204，MME向UE发送NAS激活缺省承载请求消息，消息中携带承载ID、承载QoS等；
步骤205，UE向MME返回激活缺省承载接受消息；
当大量UE一起向同一APN请求建立PDN连接或者请求资源修改的时候，网络可能会发生APN相关的拥塞，为了更好的使网络稳定，网络侧可以对某一APN实现APN拥塞控制，如图3所示是实现此拥塞控制的方法，主要可包括如下步骤：
步骤301-302，同步骤201-202；
步骤303，PGW或者SCEF因为负荷过高，不能接受新的PDN连接建立，PGW或者SCEF向MME返回建立会话响应消息或者建立SCEF连接响应消息，消息中携带拒绝原因值及APN相关的延迟接入定时器，
步骤304，MME向UE返回PDN连接建立拒绝消息，消息中携带拒绝原因值及APN相关的延迟接入定时器；
UE启动基于APN的延迟接入定时器T3396(APN)，当定时器T3396(APN)运行时，UE不能发起此APN相关的PDN建立请求请求或者资源修改的信令；
当UE在建立PDN连接的时候，如果UE没有携带APN(步骤301)，那么UE启动基于无APN(no APN)的延迟接入定时器T3396(no APN)，当T3396(no APN)运行时，UE不能发起不携带APN的PDN连接建立或者不能发起此PDN连接(如果PDN连接建立的时候没有携带APN)的资源修改操作。
发明概述
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
上述拥塞控制方法，在UE使用相同APN但不同PDN类型(PDN type)时，MME可以为其选择不同类型的PGW或者SCEF进行连接；另外在当PDN type是IP或者non-IP时，UE的缺省APN可能是不同的APN，所以基于APN的T3396可能会造成UE所有类型PDN连接在一定时间内不能获取业务。UE也可以直接认为不同PDN类型对应的APN是不同的APN，但是如果网络侧为不同类型的PDN连接选择到同一PGW或者SCEF，那么这种也会造成重试信令过多，不仅浪费网络资源，而且也难以避免网络发生APN相关的拥塞。
本发明实施例提供了一种网络拥塞控制的方法及装置。
本发明实施例提供了一种网络拥塞控制的方法，包括：
用户设备UE接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型；
UE启动所述延迟接入定时器，在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
其中，所述PDN类型包括IP类型和非IP类型；
在所述延迟接入定时器运行时执行其他PDN类型的连接操作，包括如下之一或多项：
在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE执行非IP类型PDN的连接操作；
在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE执行IP类型PDN的连接操作。
其中，UE启动所述延迟接入定时器之后，还包括：
在所述延迟接入定时器运行时，所述UE不执行所述延迟接入定时器所对应PDN类型的连接操作。
其中，所述PDN类型包括IP类型和非IP类型；
在所述UE不执行所述延迟接入定时器所对应PDN类型的PDN连接操作，包括如下之一或多项：
在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE对IP类型PDN连接不执行建立和发起修改的操作；
在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE对非IP类型PDN连接不执行建立和发起修改的操作；
在所述延迟接入定时器对应IP类型和非IP类型时，在所述延迟接入定时器运行时UE对所有类型PDN连接都不执行建立和发起修改的操作。
其中，所述不执行建立和发起修改的操作，包括：不发送如下NAS中之一或多项：
PDN连接建立请求；
资源修改信令。
其中，所述UE启动所述延迟接入定时器之后，还包括：
在接收到来自网络侧的非接入层信令NAS时，所述UE停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
其中，在接收到来自网络侧的非接入层信令NAS时，所述UE停止相应的延迟接入定时器，包括如下之一或多项：
在运行的延迟接入定时器对应IP类型时，接收到IP类型PDN连接的NAS时停止所述延迟接入定时器；
在运行的延迟接入定时器对应非IP类型时，接收到非IP类型PDN连接的NAS时停止所述延迟接入定时器；
在运行的延迟接入定时器对应IP类型和非IP类型时，接收到IP类型或非IP类型PDN连接的NAS时停止所述延迟接入定时器。
本发明实施例还提供了一种用于网络拥塞控制的装置，应用于用户设备UE，包括：
第一接收单元，设置为接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型；
启动单元，设置为启动所述延迟接入定时器；
执行单元，设置为在所述延迟接入定时器运行时执行其他PDN类型的连接操作；其中，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
其中，所述PDN类型包括IP类型和非IP类型；
所述执行单元，设置为：在所述延迟接入定时器运行时执行其他PDN类型连接的操作，包括如下之一或多项：
在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE执行非IP类型PDN的连接操作；
在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE执行IP类型PDN的连接操作。
其中，所述执行单元，还设置为在所述延迟接入定时器运行时，不执行所述延迟接入定时器所对应PDN类型的连接操作。
其中，所述第一接收单元，还设置为接收来自网络侧的非接入层信令NAS；
还包括：停止单元，设置为根据所述第一接收单元接收到的NAS停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
其中，所述停止单元设置为根据所述第一接收单元接收到的NAS停止相应的延迟接入定时器，包括如下之一或多项：
在运行的延迟接入定时器对应IP类型时，所述第一接收单元接收到的NAS对应IP类型PDN连接时停止所述延迟接入定时器；
在运行的延迟接入定时器对应非IP类型时，所述第一接收单元接收到的NAS对应非IP类型PDN连接时停止所述延迟接入定时器；
在运行的延迟接入定时器对应IP类型和非IP类型时，所述第一接收单元接收到的NAS对应IP类型或非IP类型PDN连接时停止所述延迟接入定时器。
本发明实施例还提供了一种用于网络拥塞控制的装置，应用于用户设备UE，包括：处理器和存储器；所述存储器用于存储用于网络拥塞控制的程序，所述处理器用于读取所述用于网络拥塞控制的程序来执行如下操作：
接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型；
启动所述延迟接入定时器，在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
本发明实施例还提供另一种网络拥塞控制的方法，包括：
移动管理单元向用户设备UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
其中，所述会话管理消息为PDN连接建立拒绝消息。
其中，向UE发送会话管理消息之前，还包括：
所述移动管理单元接收来自分组数据网关PGW或者网络业务能力开放功能实体SCEF的建立会话响应消息或者建立SCEF连接响应消息，所述建立会话响应消息或者建立SCEF连接响应消息中携带所述延迟接入定时器及其对应的PDN类型。
其中，还包括：移动管理单元向所述UE发送会话管理消息，所述会话管理消息为非接入层信令NAS，以便所述UE根据所述NAS停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
其中，所述会话管理消息为激活专有承载请求消息。
其中，所述移动管理单元为移动管理实体MME、服务GPRS(General Packet Radio Service，通用分组无线服务)支持节点、控制面移动管理实体或控制面会话管理实体。
本发明实施例还提供了一种用于网络拥塞控制的装置，应用于移动管理单元，包括：
第一发送单元，设置为向用户设备UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
其中，所述第一发送单元，还设置为向所述UE发送会话管理消息，所述会话管理消息为非接入层信令NAS，以便所述UE根据所述NAS停止相 应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
其中，还包括：第二接收单元，设置为接收来自分组数据网关PGW或者网络业务能力开放功能实体SCEF的建立会话响应消息或者建立SCEF连接响应消息，所述建立会话响应消息或者建立SCEF连接响应消息中携带所述延迟接入定时器及其对应的PDN类型。
本发明实施例还提供了一种用于网络拥塞控制的装置，应用于移动管理单元，包括：处理器和存储器；所述存储器用于存储用于网络拥塞控制的程序，所述处理器用于读取所述用于网络拥塞控制的程序来执行如下操作：
向用户设备UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
另一方面，本申请实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现上述的一种网络拥塞控制的方法。
另一方面，本申请实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现上述的另一种网络拥塞控制的方法。
本发明实施例提供的网络拥塞控制的方法，实现了针对PDN类型的APN拥塞控制，避免了重试信令过多、以及在某个PDN类型拥塞时导致所有PDN类型的APN都不能接入业务的情况。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为4G网络架构示意图；
图2为4G网络下UE请求建立PDN连接的流程示意图；
图3为4G网络下网络拥塞控制的流程示意图；
图4为本发明实施例一中网络拥塞控制方法的流程示意图；
图5为本发明实施例三中网络拥塞控制的实现流程示意图；
图6为本发明实施例四中网络拥塞控制的实现流程示意图；
图7为本发明实施例五中网络拥塞控制的实现流程示意图；
图8为本发明实施例一种用于网络拥塞控制的装置的组成结构示意图；
图9为本发明实施例另一种用于网络拥塞控制的装置的组成结构示意图。
详述
下文中将结合附图对本发明的实施例进行详细说明。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
实施例一
如图4所示，本申请提供一种网络拥塞控制的方法，可以包括：
步骤401，UE接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的PDN类型；
步骤402，UE启动所述延迟接入定时器，在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
本申请中，根据延迟接入定时器的PDN类型来进行PDN类型连接操作的执行，在延迟接入定时器启动后继续执行其他PDN类型的PDN操作，不仅实现了不同PDN类型对应的APN拥塞控制，而且避免重试信令过多、以及在某个PDN类型拥塞时导致所有PDN类型的APN都不能接入业务的情况，节省了网络资源，拥塞控制的效率也得到了提高。
在一些实现方式中，UE启动所述延迟接入定时器，可以包括：如果所述延迟接入定时器是基于APN的，且UE已经获知了所述APN或者所述会话管理消息中同时指示了所述延迟接入定时器对应的APN，那么UE可以启动基于该APN的延迟定时器；如果UE未获知APN且所述会话管理消息中也没有指示所述延迟接入定时器对应的APN，那么UE可以启动基于无APN的延迟接入定时器。
所述PDN类型可以包括IP类型和非IP类型；在所述延迟接入定时器运行时执行其他PDN类型的连接操作，包括如下之一或多项：
在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE执行非IP类型PDN的连接操作；
在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE执行IP类型PDN的连接操作。
在一些实现方式中，在所述延迟接入定时器运行时执行其他PDN类型的连接操作时，所涉及的连接操作可以是建立和发起修改的操作，该连接操作可以包括：发起PDN连接建立请求或发起资源修改的信令等。
也就是说，UE启动所述延迟接入定时器后，在所述延迟接入定时器运行期间可执行如下：
1)如果所述延迟接入定时器是针对IP类型的，那么UE仍可以发送建立非IP的PDN连接建立或者资源修改等操作；
2)如果所述延迟接入定时器是针对非IP类型的，那么UE仍然可以发送建立IP的PDN连接建立或者资源修改等操作；
3)如果所述延迟接入定时器是针对IP类型和非IP类型的，那么UE对所有类型的APN连接都不执行建立和发起修改的操作。
其中，UE启动所述延迟接入定时器之后，还可以包括：在所述延迟接入定时器运行时，所述UE不执行所述延迟接入定时器所对应PDN类型的连接操作。
在所述UE不执行所述延迟接入定时器所对应PDN类型的PDN连接操作，包括如下之一或多项：
在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE对IP类型PDN连接不执行建立和发起修改的操作；
在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE对非IP类型PDN连接不执行建立和发起修改的操作；
在所述延迟接入定时器对应IP类型和非IP类型时，在所述延迟接入定时器运行时UE对所有类型PDN连接都不执行建立和发起修改的操作。
在一些实现方式中，所述不执行建立和发起修改的操作，包括：不发送如下NAS中之一或多项：1)PDN连接建立请求；2)资源修改信令。
在一些实现方式中，所述UE启动所述延迟接入定时器之后，还可以包括：在接收到来自网络侧的非接入层信令NAS时，所述UE停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
在一实施方式中，在接收到来自网络侧的非接入层信令NAS时，所述UE停止相应的延迟接入定时器，包括如下之一或多项：
在运行的延迟接入定时器对应IP类型时，接收到IP类型PDN连接的NAS时停止所述延迟接入定时器；
在运行的延迟接入定时器对应非IP类型时，接收到非IP类型PDN连接的NAS时停止所述延迟接入定时器；
在运行的延迟接入定时器对应IP类型和非IP类型时，接收到IP类型或非IP类型PDN连接的NAS时停止所述延迟接入定时器。
也就是说，当UE收到网络侧发送的同一APN的PDN连接的NAS时，UE可以停止所述延迟接入定时器，包括：
1)如果UE先前运行的所述延迟接入定时器是针对IP类型的，那么收到IP类型的PDN连接的NAS时，UE停止所述延迟接入定时器；
2)如果UE先前运行的所述延迟接入定时器是针对非IP类型的，那么收到非IP类型的PDN连接的NAS时，UE停止所述延迟接入定时器；
3)如果UE先前运行的所述延迟接入定时器是针对非IP类型和IP类型的，那么收到非IP类型或者IP类型的PDN连接的NAS时，UE停止所述延迟接入定时器。
实施例二
此外，本申请还提供另一种网络拥塞控制方法，该方法可以包括：
移动管理单元向UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
实际应用中，该会话管理消息可以为PDN连接建立拒绝消息。其中，向UE发送会话管理消息之前，还可以包括：所述移动管理单元接收来自PGW或者SCEF的建立会话响应消息或者建立SCEF连接响应消息，所述建立会话响应消息或者建立SCEF连接响应消息中携带所述延迟接入定时器及其对应的PDN类型。
在一些实现方式中，上述方法还可包括：移动管理单元向所述UE发送会话管理消息，所述会话管理消息为NAS，以便所述UE根据所述NAS停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。实际应用中，该会话管理消息为激活专有承载请求消息。
本申请中，移动管理单元在会话管理消息(如PDN连接建立拒绝消息；激活专有承载请求消息)中携带延迟接入定时器，并指明该延迟接入定时器对应的类型(如，针对IP类型和/或非IP类型)；其中，移动管理单元在4G系统中可以是MME，在3G系统中可以是服务GPRS支持节点(Serving GPRS Support Node，SGSN)，在5G系统中可以是控制面移动管理实体或者控制面会话管理实体。
通过上述方法，使得UE根据延迟接入定时器的PDN类型来进行PDN类型连接操作的执行，在延迟接入定时器启动后继续执行其他PDN类型的PDN操作，不仅实现了不同PDN类型对应的APN拥塞控制，而且避免了重试信令过多、以及在某个PDN类型拥塞时导致所有PDN类型的APN都不能接入业务的情况，节省了网络资源，拥塞控制的效率也得到了提高。
实施例三
如图5所示，本实施例中网络拥塞控制的流程可以包括如下步骤：
步骤501，UE附着完成后，UE向MME发送PDN连接建立请求消息，消息中携带PDN类型，PDN类型包括IPv4、IPv6、IPv4v6等IP类型，PDN类型也可以是非IP类型；消息中也可以携带APN；
步骤502，MME根据步骤501中PDN类型及APN来选择PGW为其服务，如果PDN类型是非IP类型，那么MME也可以选择SCEF来为其服务；如果步骤501消息中没有携带APN，那么MME选择缺省APN为其服务，并根据缺省APN来选择PGW或者SCEF。如果MME选择的是PGW，MME向PGW发送建立会话请求消息，消息中携带用户的IMSI、PDN类型、承载ID及隧道ID；如果MME选择了SCEF，MME向SCEF发送建立SCEF连接请求消息，消息中携带IMSI、PDN类型及MME标识。
步骤503，PGW或者SCEF因为负荷过高，不能接受新的PDN连接建立，PGW或者SCEF向MME返回建立会话响应消息或者建立SCEF连接响应消息，消息中携带拒绝原因值及APN相关的延迟接入定时器，PGW或者SCEF同时指明此延迟接入定时器是仅针对IP类型的PDN连接和/或针对非IP类型的PDN连接；
步骤504，MME向UE返回PDN连接建立拒绝消息，消息中携带拒绝原因值及APN相关的延迟接入定时器，同时指明此APN相关的延迟接入定时器是针对IP类型的PDN连接和/或针对非IP类型的PDN连接；
UE启动基于APN针对IP类型的PDN连接和/或针对非IP类型的PDN连接延迟接入定时器T3396(APN，PDN类型)，当定时器T3396(APN，PDN类型)运行时，UE不能发起此APN相关同PDN类型的PDN建立请求或者资源修改的信令，可以继续发起此APN相关非该PDN类型的PDN建立请求或资源修改的信令。
当UE在建立PDN连接时，如果PDN连接建立拒绝消息没有携带APN，那么UE启动基于无APN(no APN)针对IP类型的PDN连接和/或针对非IP类型的PDN连接的延迟接入定时器T3396(no APN，PDN类 型)，当T3396(no APN，PDN类型)运行时，UE不能发起不携带APN的同PDN类型的PDN连接建立或者不能发起此类PDN连接(如果PDN连接建立的时候没有携带APN)的资源修改操作，但仍然可以发起不携带APN的非该PDN类型的PDN连接建立或资源修改操作。
1)如果所述延迟接入定时器是针对IP类型的，那么UE仍可以发送建立非IP的PDN连接建立或者资源修改等操作，对IP类型PDN连接不执行建立和发起修改的操作；2)如果所述延迟接入定时器是针对非IP类型的，那么UE仍然可以发送建立IP的PDN连接建立或者资源修改等操作，对非IP类型PDN连接不执行建立和发起修改的操作；3)如果所述延迟接入定时器是针对IP类型和非IP类型的，那么UE对所有类型的APN连接都不执行建立和发起修改的操作。
实施例四
如图6所示，本实施例中网络拥塞控制的流程可以包括如下步骤：
步骤601，UE附着完成后，UE向MME发送PDN连接建立请求消息，消息中携带PDN类型，PDN类型包括IPv4、IPv6、IPv4v6等IP类型，PDN类型也可以是非IP类型；消息中也可以携带APN；
步骤602，MME如果没有找到合适的PGW或者SCEF为UE服务，MME直接向UE返回PDN连接建立拒绝消息，消息中携带拒绝原因值及APN相关的延迟接入定时器，同时指明此APN相关的延迟接入定时器是针对IP类型的PDN连接和/或针对非IP类型的PDN连接；
UE启动基于APN针对IP类型的PDN连接和/或针对非IP类型的PDN连接延迟接入定时器T3396(APN，PDN类型)，当定时器T3396(APN，PDN类型)运行时，UE不能发起此APN相关同PDN类型的PDN建立请求或者资源修改的信令，可以继续发起此APN相关非该PDN类型的PDN建立请求或资源修改的信令。
当UE在建立PDN连接时，如果PDN连接建立拒绝消息没有携带APN，那么UE启动基于无APN(no APN)针对IP类型的PDN连接和/ 或针对非IP类型的PDN连接的延迟接入定时器T3396(no APN，PDN类型)，当T3396(no APN，PDN类型)运行时，UE不能发起不携带APN的同PDN类型的PDN连接建立或者不能发起此类PDN连接(如果PDN连接建立的时候没有携带APN)的资源修改操作，但仍然可以发起不携带APN的非该PDN类型的PDN连接建立或资源修改操作。
1)如果所述延迟接入定时器是针对IP类型的，那么UE仍可以发送建立非IP的PDN连接建立或者资源修改等操作，对IP类型PDN连接不执行建立和发起修改的操作；2)如果所述延迟接入定时器是针对非IP类型的，那么UE仍然可以发送建立IP的PDN连接建立或者资源修改等操作，对非IP类型PDN连接不执行建立和发起修改的操作；3)如果所述延迟接入定时器是针对IP类型和非IP类型的，那么UE对所有类型的APN连接都不执行建立和发起修改的操作。
实施例五
如图7所示，本实施例中网络拥塞控制的流程可以包括如下步骤：
步骤701，PGW向MME发送建立承载请求消息或者SCEF向MME发送SCEF连接更新请求消息；
步骤702，MME向UE发送激活专有承载请求消息，消息中携带承载ID和承载QoS；
步骤703，UE收到激活专有承载请求后，UE停止相应PDN类型对应的延迟接入定时器；
执行如下：
如果当前的PDN连接是非IP类型，UE运行的基于APN的T3396定时器是针对非IP类型的，那么UE停止此T3396定时器，这样UE就可以发起非IP类型的PDN连接建立或者资源修改；
如果当前的PDN连接是IP类型，UE运行的T3396定时器是针对IP类型的，那么UE停止此T3396定时器，这样UE就可以发起IP类型的PDN连接建立或者资源修改；
如果当前的PDN连接是IP类型或者非IP类型，UE运行的T3396定时器是针对IP类型和非IP类型的，那么UE停止此T3396定时器，这样UE就可以发起IP类型或者非IP类型的PDN连接建立或者资源修改；
如果当前的PDN连接是IP类型，UE运行的T3396定时器是针对非IP类型的，UE运行的T3396定时器继续运行；
如果当前的PDN连接是非IP类型，UE运行的T3396定时器是针对IP类型的，UE运行的T3396定时器继续运行；
步骤704，UE向MME返回激活承载接受消息；
步骤705，MME向PGW返回建立承载响应消息或者返回SCEF连接更新响应消息。
本实施例中，UE可以根据NAS的PDN类型来停止相应的延迟接入定时器，如此，实现了针对PDN类型的APN拥塞控制，避免了重试信令过多的情况，节省了网络资源，拥塞控制的效率也得到了提高。
实施例六
本实施例中，提供一种用于网络拥塞控制的装置，应用于UE，可包括：
第一接收单元81，设置为接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型；
启动单元82，设置为启动所述延迟接入定时器；
执行单元83，设置为在所述延迟接入定时器运行时执行其他PDN类型的连接操作；其中，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
在一实施方式中，所述PDN类型包括IP类型和非IP类型；所述执行单元83，设置为：在所述延迟接入定时器运行时执行其他PDN类型连接的操作，包括如下之一或多项：
在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE执行非IP类型PDN的连接操作；
在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE执行IP类型PDN的连接操作。
其中，所述执行单元83，还可设置为在所述延迟接入定时器运行时，不执行所述延迟接入定时器所对应PDN类型的连接操作。其中，在所述UE不执行所述延迟接入定时器所对应PDN类型的PDN连接操作，包括如下之一或多项：
在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE对IP类型PDN连接不执行建立和发起修改的操作；
在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE对非IP类型PDN连接不执行建立和发起修改的操作；
在所述延迟接入定时器对应IP类型和非IP类型时，在所述延迟接入定时器运行时UE对所有类型PDN连接都不执行建立和发起修改的操作。
在一些实现方式中，所述第一接收单元81，还可设置为接收来自网络侧的非接入层信令NAS；
所述装置还可包括：停止单元82，设置为根据所述第一接收单元81接收到的NAS停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
在一实施方式中，所述停止单元82可设置为根据所述第一接收单元接收到的NAS停止相应的延迟接入定时器，包括如下之一或多项：
在运行的延迟接入定时器对应IP类型时，所述第一接收单元81接收到的NAS对应IP类型PDN连接时停止所述延迟接入定时器；
在运行的延迟接入定时器对应非IP类型时，所述第一接收单元81接收到的NAS对应非IP类型PDN连接时停止所述延迟接入定时器；
在运行的延迟接入定时器对应IP类型和非IP类型时，所述第一接收单元81接收到的NAS对应IP类型或非IP类型PDN连接时停止所述延迟接入定时器。
实际应用中，第一接收单元81、启动单元82、执行单元83以及停止单元84分别可以是软件、硬件或两者的结合。例如，第一接收单元81可以通过接收器件实现，启动单元82、执行单元83以及停止单元84可以通过处理器来实现。上述装置可通过配置在UE上使用，也可以直接通过UE来实现。这里的UE可以是手机、PC或其他具有通信功能以及上述各单元所述功能的电子设备。
除此之外，还提供一种用于网络拥塞控制的装置，应用于用户设备UE，包括：处理器和存储器；所述存储器用于存储用于网络拥塞控制的程序，所述处理器用于读取所述用于网络拥塞控制的程序来执行如下操作：
接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的PDN类型；
启动所述延迟接入定时器，在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
上述用于网络拥塞控制的装置可用于UE上，可执行图4所示方法的所有流程，其实现过程与上文方法相同，不再赘述。
实施例七
如图9所示，本实施例提供一种用于网络拥塞控制的装置，应用于移动管理单元，包括：
第一发送单元91，设置为向UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
例如，该会话管理消息可以为PDN连接建立拒绝消息。其中，所述装置还可以包括：第二接收单元92，设置为接收来自分组数据网关PGW或者网络业务能力开放功能实体SCEF的建立会话响应消息或者建立SCEF连接 响应消息，所述建立会话响应消息或者建立SCEF连接响应消息中携带所述延迟接入定时器及其对应的PDN类型。如此，第一发送单元91可以根据第二接收单元92接收到的消息中获得延迟接入定时器及其PDN类型，在向UE发送所述PDN连接建立拒绝消息时可以携带延迟接入定时器并指示其对应的PDN类型。
其中，所述第一发送单元91，还可设置为向所述UE发送会话管理消息，所述会话管理消息为NAS，以便所述UE根据所述NAS停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。例如，该会话管理消息可以为激活专有承载请求消息。
除此之外，还提供了一种用于网络拥塞控制的装置，应用于移动管理单元，包括：处理器和存储器；所述存储器用于存储用于网络拥塞控制的程序，所述处理器用于读取所述用于网络拥塞控制的程序来执行如下操作：
向UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
实际应用中，第一发送单元91可以是软件、硬件或两者的结合。例如，第一发送单元91可以通过发射器件实现，上述装置可通过配置在移动管理单元上使用，也可以直接通过移动管理单元来实现。
实际应用中，上述的移动管理单元在会话管理消息(如PDN连接建立拒绝消息；激活专有承载请求消息)中携带延迟接入定时器，并指明该延迟接入定时器对应的类型(如，针对IP类型和/或非IP类型)；其中，移动管理单元在4G系统中可以是MME，在3G系统中可以是服务GPRS支持节点(Serving GPRS Support Node，SGSN)，在5G系统中可以是控制面移动管理实体或者控制面会话管理实体。
此外，本申请实施例还提供一种计算机可读存储介质，存储有计算机 可执行指令，所述计算机可执行指令被执行时实现上述实施例一的网络拥塞控制的方法。
此外，本申请实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现上述实施例二的网络拥塞控制的方法。
在本实施例中，上述计算机可读存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
在本实施例中，处理器根据存储介质中已存储的程序代码执行上述实施例的方法步骤。
本实施例中的示例可以参考上述实施例及实施方式中所描述的示例，本实施例在此不再赘述。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件(例如处理器)完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，例如通过集成电路来实现其相应功能，也可以采用软件功能模块的形式实现，例如通过处理器执行存储于存储器中的程序/指令来实现其相应功能。本申请不限制于任何特定形式的硬件和软件的结合。
以上显示和描述了本申请的基本原理和主要特征和本申请的优点。本申请不受上述实施例的限制，上述实施例和说明书中描述的只是说明本申请的原理，在不脱离本申请精神和范围的前提下，本申请还会有各种变化和改进，这些变化和改进都落入要求保护的本申请范围内。
工业实用性
本发明实施例中，根据延迟接入定时器的PDN类型来进行PDN类型连 接操作的执行，在延迟接入定时器启动后继续执行其他PDN类型的PDN操作，不仅实现了不同PDN类型对应的APN拥塞控制，而且避免重试信令过多、以及在某个PDN类型拥塞时导致所有PDN类型的APN都不能接入业务的情况，节省了网络资源，拥塞控制的效率也得到了提高。

Claims (23)

  1. 一种网络拥塞控制的方法，包括：
    用户设备UE接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型；
    UE启动所述延迟接入定时器，在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
  2. 根据权利要求1所述的方法，其中，
    所述PDN类型包括网际互连协议IP类型和非IP类型；
    在所述延迟接入定时器运行时执行其他PDN类型的连接操作，包括如下之一或多项：
    在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE执行非IP类型PDN的连接操作；
    在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE执行IP类型PDN的连接操作。
  3. 根据权利要求1或2所述的方法，其中，UE启动所述延迟接入定时器之后，还包括：
    在所述延迟接入定时器运行时，所述UE不执行所述延迟接入定时器所对应PDN类型的连接操作。
  4. 根据权利要求3所述的方法，其中，
    所述PDN类型包括IP类型和非IP类型；
    在所述UE不执行所述延迟接入定时器所对应PDN类型的PDN连接操作，包括如下之一或多项：
    在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE对IP类型PDN连接不执行建立和发起修改的操作；
    在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE对非IP类型PDN连接不执行建立和发起修改的操作；
    在所述延迟接入定时器对应IP类型和非IP类型时，在所述延迟接入定时器运行时UE对所有类型PDN连接都不执行建立和发起修改的操作。
  5. 根据权利要求4所述的方法，其中，所述不执行建立和发起修改的操作，包括：不发送如下非接入层信令NAS中之一或多项：
    PDN连接建立请求；
    资源修改信令。
  6. 根据权利要求1、2、4或5所述的方法，其中，所述UE启动所述延迟接入定时器之后，还包括：
    在接收到来自网络侧的NAS时，所述UE停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
  7. 根据权利要求6所述的方法，其中，在接收到来自网络侧的非接入层信令NAS时，所述UE停止相应的延迟接入定时器，包括如下之一或多项：
    在运行的延迟接入定时器对应IP类型时，接收到IP类型PDN连接的NAS时停止所述延迟接入定时器；
    在运行的延迟接入定时器对应非IP类型时，接收到非IP类型PDN连接的NAS时停止所述延迟接入定时器；
    在运行的延迟接入定时器对应IP类型和非IP类型时，接收到IP类型或非IP类型PDN连接的NAS时停止所述延迟接入定时器。
  8. 一种用于网络拥塞控制的装置，应用于用户设备UE，包括：
    第一接收单元，设置为接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型；
    启动单元，设置为启动所述延迟接入定时器；
    执行单元，设置为在所述延迟接入定时器运行时执行其他PDN类型的连接操作；其中，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
  9. 根据权利要求8所述的装置，其中，
    所述PDN类型包括IP类型和非IP类型；
    所述执行单元，设置为：在所述延迟接入定时器运行时执行其他PDN类型连接的操作，包括如下之一或多项：
    在所述延迟接入定时器对应IP类型时，在所述延迟接入定时器运行时所述UE执行非IP类型PDN的连接操作；
    在所述延迟接入定时器对应非IP类型时，在所述延迟接入定时器运行时所述UE执行IP类型PDN的连接操作。
  10. 根据权利要求8或9所述的装置，其中，
    所述执行单元，还设置为在所述延迟接入定时器运行时，不执行所述延迟接入定时器所对应PDN类型的连接操作。
  11. 根据权利要求8或9所述的装置，其中，
    所述第一接收单元，还设置为接收来自网络侧的非接入层信令NAS；
    还包括：停止单元，设置为根据所述第一接收单元接收到的NAS停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
  12. 根据权利要求11所述的装置，其中，所述停止单元设置为根据所述第一接收单元接收到的NAS停止相应的延迟接入定时器，包括如下之一或多项：
    在运行的延迟接入定时器对应IP类型时，所述第一接收单元接收到的NAS对应IP类型PDN连接时停止所述延迟接入定时器；
    在运行的延迟接入定时器对应非IP类型时，所述第一接收单元接收到的NAS对应非IP类型PDN连接时停止所述延迟接入定时器；
    在运行的延迟接入定时器对应IP类型和非IP类型时，所述第一接收单元接收到的NAS对应IP类型或非IP类型PDN连接时停止所述延迟接入定时器。
  13. 一种用于网络拥塞控制的装置，应用于用户设备UE，包括：处理 器和存储器；所述存储器用于存储用于网络拥塞控制的程序，所述处理器用于读取所述用于网络拥塞控制的程序来执行如下操作：
    接收来自网络侧的会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型；
    启动所述延迟接入定时器，在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
  14. 一种网络拥塞控制的方法，包括：
    移动管理单元向用户设备UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
  15. 根据权利要求14所述的方法，其中，所述会话管理消息为PDN连接建立拒绝消息。
  16. 根据权利要求15所述的方法，其中，向UE发送会话管理消息之前，还包括：
    所述移动管理单元接收来自分组数据网关PGW或者网络业务能力开放功能实体SCEF的建立会话响应消息或者建立SCEF连接响应消息，所述建立会话响应消息或者建立SCEF连接响应消息中携带所述延迟接入定时器及对应的PDN类型。
  17. 根据权利要求14所述的方法，还包括：
    移动管理单元向所述UE发送会话管理消息，所述会话管理消息为非接入层信令NAS，以便所述UE根据所述NAS停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
  18. 根据权利要求17所述的方法，其中，所述会话管理消息为激活专有承载请求消息。
  19. 根据权利要求14至18任一项所述的方法，其中，所述移动管理单 元为移动管理实体MME、服务通用分组无线服务支持节点、控制面移动管理实体或控制面会话管理实体。
  20. 一种用于网络拥塞控制的装置，应用于移动管理单元，包括：
    第一发送单元，设置为向用户设备UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
  21. 根据权利要求20所述的装置，其中，
    所述第一发送单元，还设置为向所述UE发送会话管理消息，所述会话管理消息为非接入层信令NAS，以便所述UE根据所述NAS停止相应的延迟接入定时器，所述相应的延迟接入定时器与所述NAS的PDN类型相同。
  22. 根据权利要求20所述的装置，还包括：
    第二接收单元，设置为接收来自分组数据网关PGW或者网络业务能力开放功能实体SCEF的建立会话响应消息或者建立SCEF连接响应消息，所述建立会话响应消息或者建立SCEF连接响应消息中携带所述延迟接入定时器及其对应的PDN类型。
  23. 一种用于网络拥塞控制的装置，应用于移动管理单元，包括：处理器和存储器；所述存储器用于存储用于网络拥塞控制的程序，所述处理器用于读取所述用于网络拥塞控制的程序来执行如下操作：
    向用户设备UE发送会话管理消息，所述会话管理消息携带延迟接入定时器，并指示该延迟接入定时器对应的分组数据网络PDN类型，以便所述UE在所述延迟接入定时器运行时执行其他PDN类型的连接操作，所述其他PDN类型为所述延迟接入定时器所对应PDN类型之外的PDN类型。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109863784B (zh) * 2018-05-14 2021-08-20 Oppo广东移动通信有限公司 控制网络拥塞的方法、终端设备和网络设备
CN110662223A (zh) * 2018-06-29 2020-01-07 电信科学技术研究院有限公司 接入控制定时器的处理方法、装置、终端及网络侧设备
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595556A (zh) * 2012-02-29 2012-07-18 电信科学技术研究院 一种会话管理请求消息的传输控制方法和设备
CN104704875A (zh) * 2012-10-05 2015-06-10 Lg电子株式会社 在无线通信系统中控制多优先级的方法和装置
US9220118B1 (en) * 2013-08-07 2015-12-22 Sprint Spectrum L.P. Method and system for establishing a default bearer in accordance with a substitute packet data policy
CN105723798A (zh) * 2014-10-17 2016-06-29 联发科技股份有限公司 处理失败分组数据网络建立请求进程的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595556A (zh) * 2012-02-29 2012-07-18 电信科学技术研究院 一种会话管理请求消息的传输控制方法和设备
CN104704875A (zh) * 2012-10-05 2015-06-10 Lg电子株式会社 在无线通信系统中控制多优先级的方法和装置
US9220118B1 (en) * 2013-08-07 2015-12-22 Sprint Spectrum L.P. Method and system for establishing a default bearer in accordance with a substitute packet data policy
CN105723798A (zh) * 2014-10-17 2016-06-29 联发科技股份有限公司 处理失败分组数据网络建立请求进程的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZTE: "Back-off timer for non IP PDN type", 3GPP TSG-CT WG1 MEETING #99 C1-163349, 29 July 2016 (2016-07-29), XP051118972 *

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