WO2021026746A1 - 建立会话的方法和装置 - Google Patents

建立会话的方法和装置 Download PDF

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Publication number
WO2021026746A1
WO2021026746A1 PCT/CN2019/100280 CN2019100280W WO2021026746A1 WO 2021026746 A1 WO2021026746 A1 WO 2021026746A1 CN 2019100280 W CN2019100280 W CN 2019100280W WO 2021026746 A1 WO2021026746 A1 WO 2021026746A1
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WO
WIPO (PCT)
Prior art keywords
session
priority
terminal device
deactivated
determined
Prior art date
Application number
PCT/CN2019/100280
Other languages
English (en)
French (fr)
Inventor
杨皓睿
刘建华
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to JP2021512212A priority Critical patent/JP2022548186A/ja
Priority to CN202110115453.9A priority patent/CN112969243B/zh
Priority to CA3111859A priority patent/CA3111859C/en
Priority to MX2021003233A priority patent/MX2021003233A/es
Priority to CA3202224A priority patent/CA3202224A1/en
Priority to PCT/CN2019/100280 priority patent/WO2021026746A1/zh
Priority to KR1020217005973A priority patent/KR20220047203A/ko
Priority to EP19940164.7A priority patent/EP3820170B1/en
Priority to BR112021004486A priority patent/BR112021004486A2/pt
Priority to CN201980036287.4A priority patent/CN112655225A/zh
Priority to AU2019461885A priority patent/AU2019461885A1/en
Priority to US17/163,165 priority patent/US11570826B2/en
Publication of WO2021026746A1 publication Critical patent/WO2021026746A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
    • 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
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • This application relates to the field of communications, and in particular to a method and device for establishing a session.
  • the 5th generation (5G) mobile communication system supports the protocol data unit (PDU) connection service.
  • the PDU connection service is the service of transmitting PDU data packets between the terminal device and the data network, and the data of the PDU data packet transmission
  • the channel can be called a PDU session, and the PDU session is called a session for short.
  • the number of data radio bearers (DRBs) that can be used by the terminal device is limited.
  • DRBs data radio bearers
  • NB-IoT narrowband internet of things
  • each DRB corresponds to 1 active session, that is, the terminal device can usually only be used at the same time
  • Two active sessions if the number of active sessions used by the terminal device exceeds 2, it may have a negative impact on the communication of other NB-IoT devices. Therefore, how to prevent the number of active sessions of the terminal device from exceeding the prescribed number is a problem that needs to be solved currently.
  • This application provides a method and device for establishing a session, which can prevent the number of active sessions of a terminal device from exceeding a prescribed number.
  • a method for establishing a session is provided, applied to a terminal device, including: sending a session establishment request to a network device, the session establishment request requests establishment of a first session, and the session establishment request includes first indication information, The first indication information indicates that the first session is a deactivated session or an activated session; a response message of the session establishment request is received from the network device.
  • the terminal device can request the network device to establish an activated first session through the first indication information; if the number of currently activated sessions of the terminal device has reached the number threshold, the terminal device The first indication information may be used to request the network device to establish the first deactivated session.
  • the terminal device or the network device may activate the first session. Compared with the solution of creating the first session after the current number of active sessions is less than the number threshold, the solution of establishing the deactivated session and then activating the session can quickly establish the active session and reduce the data transmission delay.
  • a method for establishing a session is provided, applied to a core network device, including: receiving a session establishment request from a terminal device, the session establishment request requests establishment of a first session, and the session establishment request includes first indication information The first indication information indicates that the first session is a deactivated session or an activated session; and a response message of the session establishment request is sent to the terminal device.
  • the network device cannot determine the type of the first session, and may refuse to establish the first session based on constraint conditions (for example, the number of currently active sessions must not exceed the number threshold). Therefore, the session establishment request containing the first indication information can prevent the network device from misjudging the intention of the terminal device, and the session is established in advance without breaking the constraint condition.
  • a method for processing a session includes: determining a processing method for a second session according to the priority of the first session and/or the number of data channels, the second session being an active session, and the first session The session, the second session, and the data channel correspond to the same terminal device.
  • the processing method for the second session may be deactivation, release, or non-deactivation, or non-release.
  • the execution device of the foregoing method may determine the processing mode of the second session based on the processing result of the second session, where the first session is the session to be activated or the first session is to be established Conversation.
  • the terminal device may determine whether to establish the first session, or determine whether to activate the first session. Therefore, the above method can coordinate the relationship between the various sessions on the terminal device, and avoid or reduce the negative impact of the newly-built session or the newly activated session on the currently activated session.
  • a communication device which is used to implement the method of the first aspect and/or the third aspect.
  • the device includes a functional module for executing the method in the first aspect and/or the third aspect.
  • a communication device for executing the method of the second aspect and/or the third aspect.
  • the device includes a functional module for executing the method in the second aspect and/or the third aspect.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect and/or the third aspect.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect and/or the third aspect.
  • a chip for executing the method in the first aspect and/or the third aspect.
  • the chip includes a processor, configured to call and run a computer program from the memory, so that the device installed with the chip is configured to execute the method in the first aspect and/or the third aspect.
  • a chip for executing the method in the second aspect and/or the third aspect.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that a device installed with the chip is configured to execute the method in the second aspect and/or the third aspect.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute the method in the first aspect and/or the third aspect.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute the method in the second aspect and/or the third aspect.
  • a computer program product including computer program instructions that cause a computer to execute the method in the first aspect and/or the third aspect.
  • a computer program product including computer program instructions that cause a computer to execute the method in the second aspect and/or the third aspect.
  • a computer program which when running on a computer, causes the computer to execute the method in the first aspect and/or the third aspect.
  • a computer program which when running on a computer, causes the computer to execute the method in the second aspect and/or the third aspect.
  • Figure 1 is a schematic diagram of a communication system suitable for the present application
  • Figure 2 is a schematic diagram of a method for establishing a session provided by the present application
  • Figure 3 is a schematic diagram of another method for establishing a session provided by the present application.
  • FIG. 4 is a schematic diagram of a method for processing a session provided by this application.
  • FIG. 5 is a schematic diagram of another method for processing a session provided by this application.
  • Fig. 6 is a schematic diagram of a communication device provided by the present application.
  • Fig. 7 is a schematic diagram of another communication device provided by the present application.
  • FIG. 8 is a schematic diagram of another communication device provided by the present application.
  • Fig. 9 is a schematic diagram of a communication device provided by the present application.
  • FIG. 1 is a schematic diagram of a communication system suitable for this application.
  • the communication system 100 includes a network device 110 and a terminal device 120.
  • the terminal device 120 can communicate with the network device 110.
  • the terminal device 120 may communicate with the network device 110 through radio waves, and may also communicate with the network device 110 through optical fibers or cables.
  • the terminal device 120 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem.
  • 3GPP third generation partnership program
  • UE user equipment
  • MS mobile station
  • soft terminal home gateway
  • set-top box etc.
  • the network device 110 may be an access network device and/or a core network device complying with 3GPP specifications, for example, a base station (gNB) and/or a core network device in a 5G mobile communication system.
  • the network device 110 may also be a non-3GPP (non-3GPP) network device, such as an access gateway (AGF).
  • the network device 110 may also be a relay station, an access point, a vehicle-mounted device, a wearable device, and other types of devices.
  • the communication system 100 is only an example, and the communication system applicable to the present application is not limited to this.
  • the terminal device 120 can use different access technologies to transmit data.
  • the terminal device 120 can communicate with the 3GPP core network (such as the network device 110 in Figure 1) through the 3GPP access network, and the terminal device 120 can also communicate with the 3GPP core through the non-3GPP interworking function (N3IWF). Network to communicate.
  • N3IWF non-3GPP interworking function
  • Fig. 2 is a schematic diagram of a method for establishing a session provided by the present application.
  • Method 200 includes:
  • S210 Send a session establishment request to the network device.
  • the terminal device may send a session establishment request to the network device.
  • the session establishment request requests the establishment of the first session.
  • the session establishment request includes the first indication information.
  • the first indication information indicates that the first session is Deactivate the session or activate the session.
  • words such as “first” and “second” are used to denote different individuals.
  • first conversation and “second conversation” refer to two different conversations.
  • a deactivated session can be interpreted as: a session lacking user plane resources; correspondingly, an active session can be interpreted as: a session including user plane resources.
  • the user plane resources are, for example, the data bearer of the Uu interface (ie, DRB) and the N3 tunnel.
  • DRB data bearer of the Uu interface
  • N3 tunnel the N3 tunnel.
  • the context of the deactivated session is still stored in the terminal device and the core network device.
  • the session identifier, internet protocol (IP) address and quality of service (QoS) rules are still stored in the terminal device and core network.
  • IP internet protocol
  • QoS quality of service
  • the context related to the deactivation session in the (radio) access network ((radio) access network, (R) AN) is deleted.
  • the terminal device or core network device can activate the user plane resources of the deactivated session through the service request process, so that the deactivated session becomes an activated session, and the uplink is transmitted through the activated session Data or downlink data.
  • the process of the terminal device or the core network device activating and deactivating the session through the service request process can refer to the prior art, and for the sake of brevity, it will not be repeated here.
  • the network device in the method 200 is, for example, a session management function (session management function, SMF).
  • the terminal device can send a session establishment request to the SMF through the (R)AN, or through the access and mobility management function (access and mobility management function).
  • AMF sends a session establishment request to SMF, and can also send a session establishment request to SMF through (R)AN and AMF.
  • the SMF can receive the session establishment request from the terminal device through the (R)AN, it can also receive the session establishment request from the terminal device via the AMF, or it can receive the session establishment request from the terminal device via the (R)AN and AMF.
  • This application does not limit the manner in which the session establishment request is transmitted between the terminal device and the network device.
  • the terminal device can indicate the type of the first session of the network device, that is, whether the first session is an activated session or a deactivated session.
  • the terminal device may request the network device to establish an activated first session through the first indication information; if the number of currently activated sessions of the terminal device has reached the number threshold, the The terminal device may request the network device to establish the first deactivated session through the first indication information.
  • the terminal device or the network device may activate the first session.
  • the solution of establishing the deactivated session and then activating the session can quickly establish the active session and reduce the data transmission delay.
  • the terminal device may request the network device to establish an activated first session through the first indication information; if the number of DRBs of the terminal device has reached the number threshold, the terminal device The first indication information may be used to request the network device to establish the first deactivated session.
  • the terminal device or the network device may activate the first session. Compared with the solution of creating the first session after the number of DRBs is less than the number threshold, the solution of establishing the deactivated session and then activating the session can quickly establish the active session and reduce the data transmission delay.
  • the aforementioned "number of currently active sessions” can be interpreted as: the number of active sessions existing on the terminal device at the moment when the terminal device runs a program to determine whether the number of active sessions reaches the number threshold.
  • the “determining condition” refers to the condition at the moment when the “determining step” is executed. For example, for the following determination steps: when the number of DRBs of the terminal device is less than the number threshold, it is determined that the first session is an active session; "the number of DRBs of the terminal device is less than the number threshold” is the determination condition, and the DRB in the determination condition refers to It is the DRB that exists on the terminal device when this determination step is performed.
  • the DRBs in this application are all activated DRBs.
  • the network device if the session establishment request does not include the first indication information, the network device cannot determine the type of the first session, and may refuse to establish the first session based on constraint conditions (for example, the number of currently active sessions must not exceed the number threshold). Therefore, the session establishment request containing the first indication information can prevent the network device from misjudging the intention of the terminal device, and the session is established in advance without breaking the constraint condition.
  • constraint conditions for example, the number of currently active sessions must not exceed the number threshold. Therefore, the session establishment request containing the first indication information can prevent the network device from misjudging the intention of the terminal device, and the session is established in advance without breaking the constraint condition.
  • the first indication information may be one bit in the session establishment request. For example, when the bit value is "0", the first indication information indicates that the first session is an active session; when the bit value is "1", it indicates that the first session is a deactivated session. This application does not limit the specific form of the first instruction information.
  • the terminal device may determine the type of the first session before sending the session establishment request, that is, determine whether the first session is an activated session or a deactivated session.
  • the first session is determined to be an active session; or, when the number of currently activated sessions of the terminal device is equal to the number threshold, the first session is determined to be a deactivated session.
  • the first session is determined to be an active session; or, when the number of DRBs of the terminal device is equal to the number threshold, the first session is determined to be a deactivated session.
  • the number of currently active sessions is equivalent to the number of DRBs.
  • the above-mentioned number threshold is 2, for example. Determining the type of the first session based on the number of currently activated sessions or the number of DRBs can prevent the number of currently activated sessions (or the number of DRBs) from exceeding the number threshold specified by the network device or the communication protocol.
  • the terminal device may also determine the type of the first session based on the priority of the first session.
  • the priority of the session may be the priority of the service that uses the session, or the priority of the session derived from the priority of the service.
  • the first session when the priority of the first session is higher than or equal to the target priority, the first session is determined to be an active session; or, when the priority of the first session is lower than the target priority, the first session is determined to be a deactivated session .
  • the target priority may be the priority configured by the network device, the priority determined by the terminal device (for example, the priority set by the user of the terminal device), or the priority defined by the communication protocol.
  • the target priority is the security alert level. If the first session is a session of service data, the priority of the first session is the normal service level, and the normal service level is lower than the security alert level, and the terminal device can determine that the first session is a deactivated session; if the first session is a security alert For data sessions, the priority of the first session is the security alert level, and the terminal device can determine that the first session is an active session (at this time, the terminal device can ignore the limit of the number threshold).
  • the terminal device may also determine the type of the first session according to the number threshold and the priority of the first session.
  • the number threshold is 2. If the number of DRBs is 0, the terminal device can determine that the first session is an active session when the priority of the first session is lower than or equal to or higher than the target priority; if the number of DRBs is 1, the terminal device can be in the first session. When the priority of the session is equal to or higher than the target priority, the first session is determined to be the active session, and the terminal device can determine that the first session is the deactivated session when the priority of the first session is lower than the target priority; If the number is 2, the terminal device may determine that the first session is an active session when the priority of the first session is higher than the target priority, and the terminal device may determine when the priority of the first session is lower than or equal to the target priority The first session is a deactivated session.
  • the above examples can enable terminal devices to obtain flexible services under different resource usage rates, and improve communication quality on the premise of meeting basic communication requirements.
  • the method for the network device to determine the type of the first session is similar to the method for the terminal device to determine the type of the first session described above.
  • the network device may also determine the type of the first session based on the number of currently active sessions and/or the priority of the first session.
  • the judgment conditions of the network equipment and the judgment conditions of the terminal equipment may be different. For example, when the priority of the first session is equal to the target priority, the terminal device determines that the first session is an active session, and indicates that the first session is an active session through the first indication information; the network device can determine the first session in this case To deactivate the session.
  • the network device may send a response message of the session establishment request of the first session to the terminal device. Accordingly, the terminal device can perform the following steps.
  • the response message may include information indicating that the first session is an activated session, and may also include information indicating that the first session is a deactivated session.
  • the first indication information indicates that the first session is a deactivated session, and if the response message includes an acknowledgement (ACK), it means that the first session is successfully established, and the first session is a deactivated session; if the response message Contains a non-acknowledgement (NACK), which means that the establishment of the first session fails.
  • ACK acknowledgement
  • NACK non-acknowledgement
  • the first indication information indicates that the first session is an active session. If the response message contains ACK, it means that the first session is successfully established, and the first session is an active session; if the response message contains NACK, it means that the first session is active. The session is successfully established, but the first session is a deactivated session.
  • the first indication information indicates that the first session is an active session. If the response message contains ACK, it means that the first session is successfully established, and the first session is an active session; if the response message contains NACK, it means that the first session is active. The session establishment failed.
  • the method 200 further includes:
  • the first session When the first session meets the target condition, the first session is activated.
  • the target condition can be preset or dynamically indicated by the network device.
  • the process of activating the first session may be triggered by a terminal device or a network device.
  • the foregoing first session meeting the target condition may be that the number of currently active sessions is less than the number threshold. For example, if some applications of the terminal device have no data transmission for a long time, the terminal device will deactivate or release part of the sessions in the current active session, so that the current active session is activated. The number of sessions is less than the number threshold.
  • the above-mentioned first session meets the target condition, or it may be that the priority of the first session is higher than or equal to the target priority.
  • the first session is not activated after a long period of time, resulting in data failure for a long time.
  • the terminal device can increase the priority of the first session so that the priority of the first session is higher than or equal to the target priority.
  • the method 200 may further include:
  • the terminal device determines not to perform session establishment and/or session activation in the first time period.
  • the first time period can be a preset time period or the time period indicated in the response message.
  • the terminal device may start a timer after receiving the response message, set the running time of the timer to the first time period, and no longer initiate a session establishment process during the running of the timer.
  • the network device may determine not to send a DRB session message (for example, N2SM Info) for establishing the first session to the (R)AN to avoid ( R) AN establishes DRB for the first session.
  • a DRB session message for example, N2SM Info
  • the network device may also send a session message to the (R)AN, the session message containing part of the information required by the (R)AN to establish the DRB, so as to prevent the (R)AN from establishing the DRB for the first session.
  • N2SM Info For example, SMF sends N2SM Info to (R)AN through AMF, N2SM Info includes the session identifier of the first session, (R)AN cannot establish DRB based on only the session identifier of the first session. Therefore, after the (R)AN receives the N2SM Info, the deactivated first session is established, that is, the (R)AN only saves the context of the first session, but does not configure or establish the DRB for the first session.
  • the N2SM Info may further include second indication information, indicating that the (R)AN establishes the first deactivated session, or indicates that the DRB of the (R)AN first session is prohibited from being established.
  • the process of establishing the first session between the terminal device and the network device is shown in FIG. 3.
  • the process includes:
  • the UE sends a radio resource control (radio resource control, RRC) message to the (R)AN, where the RRC message includes a non-access stratum (NAS) message, and the NAS message includes a PDU session identifier and a single network slice.
  • RRC radio resource control
  • NAS non-access stratum
  • Selection assistance information single-network slice selection assistance information, S-NSSAI
  • data network name data network name, DNN
  • PDU session establishment request PDU session establishment request
  • the PDU session establishment request requests the establishment of the first session
  • the PDU session establishment request includes the first indication information.
  • the first indication information indicates that the first session is a deactivated session.
  • the AMF selects an SMF according to information such as DNN and S-NSSAI, and forwards the UE ID, PDU session ID, DNN, S-NSSAI, and PDU session establishment request to the SMF by invoking the Nsmf service.
  • the SMF After the SMF receives the first indication information, if it determines that the first session is a deactivated session, it does not send N2SM info to the (R)AN. In this way, the (R)AN will not establish a DRB for the first session.
  • the SMF may also send N2SM info (including the user plane function (UPF) tunnel identifier) to the (R)AN, and the SMF may also send second indication information to the (R)AN to indicate the first session
  • the (R)AN only saves the context of the first session after receiving the second indication information, but does not configure or establish the DRB for the first session.
  • the SMF can send the UPF tunnel identifier to the AMF by calling the Namf service.
  • the AMF sends a response message to the UE through the (R)AN.
  • the response message is, for example, PDU session establishment accept.
  • the PDU session establishment accept may include an acknowledgement indication indicating that the first session has been established.
  • the PDU session establishment acceptance can be carried in the downlink NAS message.
  • the UE After receiving the response message, the UE determines that the first session is successfully established, and the first session is not activated. After one of the currently active sessions is deactivated or released, the UE can initiate a service request process to activate the first session and transmit data.
  • the method 400 includes:
  • S410 Determine the processing mode of the second session according to the priority of the first session and/or the number of data channels, where the second session is an active session, and the first session, the second session, and the data channel correspond to each other The same terminal equipment.
  • the method 400 may be executed by a terminal device, may also be executed by a network device (for example, SMF or (R)AN), or may be executed by a chip in the aforementioned device.
  • a network device for example, SMF or (R)AN
  • the terminal device can obtain a session message generated by an application layer or a user equipment routing policy (UE route selection policy, URSP) processing layer (handling layer) or operating system, and the session message requests establishment or activation The first conversation.
  • the terminal device responds to the session message and executes S410; this solution can also be interpreted as the session message triggering the terminal device to execute S410.
  • UE route selection policy URSP
  • the SMF may obtain a session message (for example, a session establishment request or a service request of the first session) from the terminal device, and the SMF responds to the session message and executes S410; that is, the session message triggers the SMF to execute S410.
  • the SMF may also obtain a session message from the UPF, and the session message is, for example, a downlink data notification (DL data notification).
  • DL data notification downlink data notification
  • the (R)AN can obtain the session message sent by the SMF from the AMF.
  • the session message informs the (R)AN to establish the first session, and the (R)AN responds to the session message and executes S410; That is, the session message triggers the (R)AN to perform S410.
  • the processing method for the second session may be deactivation, release, or non-deactivation, or non-release.
  • the execution device of the method 400 may determine the processing manner of the second session based on the processing result of the second session.
  • the first session is a session to be activated or the first session is a session to be established.
  • the terminal device may determine whether to establish the first session, or determine whether to activate the first session. Therefore, the method 400 can coordinate the relationship between the various sessions on the terminal device, and avoid or reduce the negative impact of the newly-built session or the newly activated session on the currently activated session.
  • the aforementioned data channel can be the currently active session or DRB.
  • the execution device of method 400 may determine the processing mode of the second session according to the priority of the first session and/or the number of currently active sessions; when the data channel is DRB, the execution device of method 400 The processing mode of the second session may be determined according to the priority of the first session and/or the number of DRBs.
  • the data channel is the current active session as an example for description.
  • the executing device determines the processing mode of the second session according to the priority of the first session; or, when the number of currently activated sessions is less than the number threshold, the executing device It is determined not to determine the processing mode of the second session according to the priority of the first session.
  • the execution device is a terminal device
  • the terminal device may not initiate the process of releasing or deactivating the second session; when the number of currently active sessions is equal to the number threshold, the terminal device may The priority of the session (or the priority of the second session) determines whether to initiate the process of releasing or deactivating the second session. SMF also applies to this example.
  • the (R)AN may not deactivate when the number of currently active sessions is less than the number threshold, or Do not release the second session; or (R)AN can determine whether to deactivate or release the second session according to the priority of the first session (or the priority of the second session) when the number of currently active sessions is equal to the number threshold. Conversation.
  • the number threshold may be 2.
  • determining the processing mode of the second session according to the priority of the first session may include:
  • the executing device deactivates the second session, or the executing device releases the second session; or, when the priority of the first session does not meet the priority requirement, The executing device determines not to deactivate the second session, or the executing device determines not to release the second session.
  • the execution device is a terminal device
  • the terminal device may not initiate the process of releasing or deactivating the second session; when the priority of the first session meets the priority requirements, the terminal The device can initiate the process of releasing or deactivating the second session.
  • SMF also applies to this example.
  • the priority of the first session is the ordinary service level
  • the priority requirement is that the priority of the newly created or newly activated session needs to reach the security alert level. If the ordinary service level is lower than the security alert level, the terminal device or SMF may not be initiated The process of releasing or deactivating the second session.
  • the (R)AN may not meet the priority requirements when the priority of the first session does not meet the priority requirements. Deactivate or not release the second session, and refuse to establish or activate the first session; or (R)AN can deactivate or release the second session when the priority of the first session meets the priority requirement.
  • the priority of the first session meets the priority requirement may be that the priority of the first session is equal to or higher than the priority threshold, or the priority of the first session is equal to or higher than the priority of the second session;
  • the above-mentioned “the priority of the first session does not meet the priority requirement” may be that the priority of the first session is lower than the priority threshold, or the priority of the first session is lower than the priority of the second session.
  • the foregoing priority threshold may be configured by the network device, may also be determined by the terminal device, or may be specified by the communication protocol.
  • the method 400 may include:
  • the terminal device sends a deactivation request to the network device (for example, SMF), and the deactivation request indicates to deactivate the second session.
  • the network device for example, SMF
  • the second session may include one transmission path or at least two transmission paths, and the at least two transmission paths may include a new radio (NR) transmission path and a long term evolution (long term evolution, LTE) transmission path, or ,
  • the at least two paths may include a 3GPP transmission path and a non-3GPP transmission path. This application does not limit at least two transmission paths of the second session.
  • the deactivation request may include indication information, and the indication information may indicate to deactivate at least one of the at least two paths of the second session.
  • the indication information in the deactivation request may be one or more bits, or other forms of information. This application does not limit the specific form of the indication information in the deactivation request.
  • the aforementioned deactivation request further includes a reason value, and the reason value indicates a reason for deactivating the second session.
  • the reason for deactivating the second session may be at least one of the following: insufficient resources, resource usage exceeding the resource threshold, and the number of DRBs of the terminal device has reached 2.
  • the above resources may be the processor resources of the terminal device.
  • the processor of the terminal device has a heavy burden and cannot carry 3 or more DRBs (that is, insufficient resources); or, the usage rate of the processor of the terminal device exceeds Usage threshold (that is, the resource usage exceeds the resource threshold); the terminal device can write the above reason in the deactivation request.
  • the terminal device may receive a response message of the deactivation request from the network device, where the response message indicates that the second session is deactivated.
  • the terminal device may not perform session establishment and/or activation within the first time period.
  • the first time period can be a preset time period or the time period indicated in the response message.
  • the terminal device may start a timer after receiving the response message, set the running duration of the timer to the duration of the first period, and no longer initiate a session establishment process and/or a session activation process during the running of the timer.
  • the terminal device and the network device can establish the activated first session or deactivate the first session according to the method 200 or the method shown in FIG. 3 The first conversation. If the execution apparatus of the method 400 determines not to deactivate or release the second session after performing S410, the terminal device and the network device can establish the deactivated first session according to the method 200 or the method shown in FIG. 3.
  • the UE has established 2 active sessions (or 2 DRBs), and the communication system where the UE is located stipulates that each terminal device maintains at most 2 active sessions (or 2 DRBs) at the same time.
  • the UE's application requests to establish a new session, and the UE can decide whether to deactivate the current active session according to the priority of the service of the application.
  • the UE can deactivate the session for transmitting daily data, and establish or Activate the session.
  • the process of UE deactivation session is shown in Figure 5.
  • the process includes:
  • the UE sends a deactivation request to the SMF through the (R)AN and AMF.
  • the deactivation request includes the PDU session identifier, indication information, and reason value (optional) of the second session, and the indication information is used to indicate SMF deactivation
  • the reason value may be insufficient resources, resource usage exceeding the resource threshold, UE's DRB is full of 2, and so on.
  • the SMF decides to deactivate the second session.
  • the SMF may send a session message to the AMF, and the session message may include N1SM info (optional) for the UE and N2SM info for the (R)AN.
  • the N1SM info contains the response message of the deactivation request in S501, and the N2SM info contains user plane release information to notify the (R)AN to release the DRB.
  • the AMF forwards the N1SM info and N2SM info to the (R)AN.
  • the (R)AN releases the DRB of the second session according to the N2SM info, and sends the N1SM info to the UE through an RRC message.
  • the (R)AN may also determine by itself whether to release the DRB of the second session according to the N2SM info.
  • S505 The UE determines that the user plane of the second session is deactivated according to the N1SM info or according to the DRB of the second session being released.
  • the UE can activate the user plane of the first session through the service request process to transmit security alert information; if the first session is not established, the UE can establish the first session through the session establishment process to transmit security alert information .
  • the NAS layer of the UE can notify the application layer and the URSP processing layer that the first session establishment or activation fails, and set a timer, The application cannot initiate a session establishment or activation request before the timer runs out.
  • the communication device includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the present application may divide the communication device into functional units according to the foregoing method examples.
  • each function may be divided into each functional unit, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in this application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • Fig. 6 is a schematic structural diagram of a communication device provided by the present application.
  • the device 600 includes a processing unit 610, a sending unit 620, and a receiving unit 630.
  • the sending unit 620 can execute the sending step under the control of the processing unit 610
  • the receiving unit 630 can execute the receiving step (or obtaining step) under the control of the processing unit 610.
  • the sending unit 620 may be configured to send a session establishment request to the network device, the session establishment request requests the establishment of a first session, the session establishment request includes first indication information, and the first indication information indicates that the first session is Deactivate the session or activate the session;
  • the receiving unit 630 may be configured to receive a response message of the session establishment request from the network device.
  • the processing unit 610 is configured to determine that the first session is an activated session or a deactivated session.
  • the processing unit 610 is specifically configured to: when the number of active sessions of the terminal device is less than a number threshold, determine that the first session is an active session; or, when the number of active sessions of the terminal device is equal to the number When the threshold is set, it is determined that the first session is a deactivated session.
  • the processing unit 610 is specifically configured to: when the number of DRBs of the terminal device is less than the number threshold, determine that the first session is an active session; or, when the number of DRBs of the terminal device is equal to the number threshold, determine the The first session is a deactivated session.
  • the number threshold is 2.
  • the processing unit 610 is specifically configured to: when the priority of the first session is higher than or equal to the target priority, determine that the first session is the active session; or, when the priority of the first session When the priority is lower than the target priority, it is determined that the first session is a deactivated session.
  • the first indication information indicates that the first session is a deactivated session
  • the response message indicates that the first session is successfully established
  • the processing unit 610 is further configured to: when the first session and/or When the DRB of the terminal device meets the target condition, activate the first session.
  • that the DRB of the first session and/or the terminal device meets a target condition includes: the number of DRBs of the terminal device is less than a number threshold.
  • DRB of the first session and/or the terminal device meets the target condition includes: the priority of the first session is higher than or equal to the target priority.
  • the response message indicates that the establishment of the first session failed; or, the first indication information indicates that the first session is an active session, and the response message indicates that the first session is deactivated Session;
  • the processing unit 610 is further configured to: determine, according to the response message, that no session establishment and/or session activation are performed in the first time period.
  • the processing unit 610 is specifically configured to: start a timer according to the response message, where the timer is used to prohibit session establishment and/or session activation in the first time period.
  • Fig. 7 is a schematic structural diagram of a communication device provided by the present application.
  • the device 700 includes a processing unit 710, a sending unit 720, and a receiving unit 730.
  • the sending unit 720 can execute the sending step under the control of the processing unit 710
  • the receiving unit 730 can execute the receiving step (or the obtaining step) under the control of the processing unit 710.
  • the receiving unit 730 may be configured to: receive a session establishment request from the terminal device, the session establishment request requests the establishment of a first session, the session establishment request includes first indication information, and the first indication information indicates that the first session is Deactivate the session or activate the session;
  • the sending unit 720 may be configured to send a response message of the session establishment request to the terminal device.
  • the first indication information indicates that the first session is a deactivated session
  • the sending unit 720 is further configured to: send a session message to the access network, where the session message is used by the access network to establish the The first conversation.
  • the session message includes part of information required to establish the DRB of the first session.
  • the first indication information indicates that the first session is a deactivated session
  • the sending unit 720 is further configured to: determine not to send a DRB session message for establishing the first session to the access network.
  • the processing unit 710 is further configured to determine that the first session is an activated session or a deactivated session.
  • the processing unit 710 is specifically configured to: when the number of active sessions of the terminal device is less than a number threshold, determine that the first session is an active session; or, when the number of active sessions of the terminal device is equal to the number When the threshold is set, it is determined that the first session is a deactivated session.
  • the processing unit 710 is specifically configured to: when the number of DRBs of the terminal device is less than a number threshold, determine that the first session is an active session; or, when the number of DRBs of the terminal device is equal to the number threshold And determine that the first session is a deactivated session.
  • the number threshold is 2.
  • the processing unit is specifically configured to: when the priority of the first session is higher than or equal to the target priority, determine that the first session is the active session; or, when the priority of the first session is When the level is lower than the target priority, it is determined that the first session is a deactivated session.
  • Fig. 8 is a schematic structural diagram of a communication device provided by the present application.
  • the device 800 includes a processing unit 810, and the processing unit 810 is configured to:
  • the second session is an active session.
  • the first session, the second session and the data channel correspond to the same Terminal Equipment.
  • the processing unit 810 is specifically configured to: obtain a session message, which is used to establish the first session, or, the session message is used to activate the first session; respond to the session message, according to The priority of the first session and/or the number of data channels determines the processing mode of the second session.
  • the data channel is an active session
  • the processing unit 810 is specifically configured to: when the number of active sessions is equal to a number threshold, determine the processing of the second session according to the priority of the first session Or, when the number of active sessions is less than the number threshold, it is determined not to determine the processing method of the second session according to the priority of the first session.
  • the data channel is a DRB
  • the processing unit 810 is specifically configured to: when the number of the DRB is equal to a number threshold, determine the processing mode of the second session according to the priority of the first session; Or, when the number of the DRB is less than the number threshold, it is determined not to determine the processing mode of the second session according to the priority of the first session.
  • the number threshold is 2.
  • the processing unit 810 is specifically configured to: when the priority of the first session meets priority requirements, deactivate the second session, or release the second session; or, when the priority When the priority of the first session does not meet the priority requirement, it is determined not to deactivate the second session, or it is determined not to release the second session.
  • the processing unit 810 is further configured to send a deactivation request to the network device through a sending unit, where the deactivation request requests to deactivate the second session.
  • the second session includes at least two transmission paths
  • the deactivation request includes indication information
  • the indication information indicates to deactivate at least one transmission path of the at least two transmission paths of the second session.
  • the deactivation request further includes a reason value, and the reason value indicates a reason for deactivating the second session.
  • the reason includes at least one of the following: insufficient resources, resource usage exceeding a resource threshold, and the number of DRBs of the terminal device has reached 2.
  • the processing unit 810 is further configured to: receive a response message of the deactivation request from the network device through a receiving unit, the response message indicating that the second session is deactivated.
  • processing unit 810 is further configured to determine not to perform session establishment and/or session activation within the first time period according to the failure of the establishment of the first session or the failure of the activation of the first session.
  • the processing unit 810 is specifically configured to: start a timer according to the first session establishment failure or the first session activation failure, and the timer is used to prohibit session establishment and / Or the session is activated.
  • Fig. 9 shows a schematic structural diagram of a communication device provided by the present application.
  • the dotted line in Figure 9 indicates that the unit or the module is optional.
  • the device 900 may be used to implement the methods described in the foregoing method embodiments.
  • the device 900 may be a terminal device or a network device or a chip.
  • the device 900 includes one or more processors 901, and the one or more processors 901 can support the device 900 to implement the methods in the method embodiments corresponding to FIGS. 2 to 5.
  • the processor 901 may be a general-purpose processor or a special-purpose processor.
  • the processor 901 may be a central processing unit (CPU).
  • the CPU can be used to control the device 900, execute a software program, and process data of the software program.
  • the device 900 may further include a communication unit 905 to implement signal input (reception) and output (transmission).
  • the device 900 may be a chip, and the communication unit 905 may be an input and/or output circuit of the chip, or the communication unit 905 may be a communication interface of the chip, and the chip may be used as a terminal device or a network device or other wireless communication device Part.
  • the device 900 may be a terminal device or a network device
  • the communication unit 905 may be a transceiver of the terminal device or the network device
  • the communication unit 905 may be a transceiver circuit of the terminal device or the network device.
  • the device 900 may include one or more memories 902, on which a program 904 is stored.
  • the program 904 can be run by the processor 901 to generate instructions 903, so that the processor 901 executes the methods described in the foregoing method embodiments according to the instructions 903.
  • the memory 902 may also store data.
  • the processor 901 may also read data stored in the memory 902. The data may be stored at the same storage address as the program 904, or the data may be stored at a different storage address from the program 904.
  • the processor 901 and the memory 902 may be provided separately or integrated together, for example, integrated on a single board of a network device or a system on chip (SOC) of a terminal device.
  • SOC system on chip
  • the device 900 may also include an antenna 906.
  • the communication unit 905 is used to implement the transceiver function of the device 900 through the antenna 906.
  • the processor 901 may be a CPU, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices , For example, discrete gates, transistor logic devices, or discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • This application also provides a computer program product, which, when executed by the processor 901, implements the method described in any method embodiment in this application.
  • the computer program product may be stored in the memory 902, for example, a program 904, which is finally converted into an executable object file that can be executed by the processor 901 after preprocessing, compilation, assembly, and linking.
  • This application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a computer, the method described in any method embodiment in this application is implemented.
  • the computer program can be a high-level language program or an executable target program.
  • the computer-readable storage medium is, for example, the memory 902.
  • the memory 902 may be a volatile memory or a non-volatile memory, or the memory 902 may include both a volatile memory and a non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM, DR RAM
  • the disclosed system, device, and method may be implemented in other ways. For example, some features of the method embodiments described above may be ignored or not implemented.
  • the device embodiments described above are merely illustrative.
  • the division of units is only a logical function division. In actual implementation, there may be other division methods, and multiple units or components may be combined or integrated into another system.
  • the coupling between the units or the coupling between the components may be direct coupling or indirect coupling, and the foregoing coupling includes electrical, mechanical, or other forms of connection.
  • the size of the sequence number of each process does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • system and “network” in this article are often used interchangeably in this article.
  • the term “and/or” in this article is only an association relationship describing associated objects, which means that there can be three types of relationships. For example, A and/or B can mean that there is A alone, and both A and B exist. There are three cases of B.
  • the character “/” in this text generally indicates that the associated objects before and after are in an "or” relationship.

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Abstract

本申请提供了一种建立会话的方法，应用于终端设备，包括：向网络设备发送会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；从所述网络设备接收所述会话建立请求的响应消息。若DRB的数量已达到数量阈值，则该终端设备可以通过第一指示信息请求网络设备建立去激活的第一会话，待DRB的数量小于数量阈值时，终端设备或者网络设备可以激活第一会话。相比于在DRB的数量小于数量阈值后新建第一会话的方案，先建立去激活会话再激活会话的方案能够快速建立激活会话，减小数据的传输时延。

Description

建立会话的方法和装置 技术领域
本申请涉及通信领域，具体涉及一种建立会话的方法和装置。
背景技术
第五代(5th generation，5G)移动通信系统支持协议数据单元(protocol data unit，PDU)连接业务，PDU连接业务即终端设备与数据网络之间传输PDU数据包的业务，传输PDU数据包的数据通道可以称为PDU会话，PDU会话简称为会话。
在一些场景中，终端设备能够使用的数据无线承载(data radio bearer，DRB)的数量有限。例如，当终端设备接入窄带物联网(narrow band internet of things，NB-IoT)时，通常只能同时使用2个DRB，每个DRB对应1个激活会话，即，终端设备通常只能同时使用2个激活会话，若终端设备使用的激活会话的数量超过2，则有可能对其它NB-IoT设备的通信造成负面影响。因此，如何避免终端设备的激活会话超过规定的数量是当前需要解决的问题。
发明内容
本申请提供了一种建立会话的方法和装置，能够避免终端设备的激活会话超过规定的数量。
第一方面，提供了一种建立会话的方法，应用于终端设备，包括：向网络设备发送会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；从所述网络设备接收所述会话建立请求的响应消息。
若终端设备当前激活会话的数量未达到数量阈值，则该终端设备可以通过第一指示信息请求网络设备建立激活的第一会话；若终端设备当前激活会话的数量已达到数量阈值，则该终端设备可以通过第一指示信息请求网络设备建立去激活的第一会话，待当前激活会话的数量小于数量阈值时，终端设备或者网络设备可以激活第一会话。相比于在当前激活会话的数量小于数量阈值后新建第一会话的方案，先建立去激活会话再激活会话的方案能够快速建立激活会话，减小数据的传输时延。
第二方面，提供了一种建立会话的方法，应用于核心网设备，包括：从终端设备接收会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；向所述终端设备发送所述会话建立请求的响应消息。
若会话建立请求不包含第一指示信息，网络设备无法确定第一会话的类型，可能会基于约束条件(例如，当前激活会话的数量不得超出数量阈值)拒绝建立第一会话。因此，包含第一指示信息的会话建立请求能够避免网络设备误判终端设备的意图，在不突破约束条件的前提下提前建立会话。
第三方面，提供了一种处理会话的方法，包括：根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，所述第二会话为激活会话，所述第一会话、所述第二会话和所述数据通道对应相同的终端设备。
第二会话的处理方式可以是去激活，也可以是释放，还可以是不去激活，还可以是不释放。上述方法的执行装置确定第二会话的处理方式后，可以基于第二会话的处理结果确定第一会话的处理方式，其中，第一会话是待激活的会话，或者，第一会话是待建立的会话。例如，终端设备可以确定是否建立第一会话，或者，确定是否激活第一会话。因此，上述方法能够协调终端设备上各个会话之间的关系，避免或减小新建的会话或新激活的会话对当前激活会话的负面影响。
第四方面，提供了一种通信装置，用于执行上述第一方面和/或第三方面的方法。具体地，该装置包括用于执行第一方面和/或第三方面中的方法的功能模块。
第五方面，提供了一种通信装置，用于执行上述第二方面和/或第三方面的方法。具体地，该装置包括用于执行第二方面和/或第三方面中的方法的功能模块。
第六方面，提供了一种终端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面和/或第三方面中的方法。
第七方面，提供了一种网络设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第二方面和/或第三方面中的方法。
第八方面，提供了一种芯片，用于执行上述第一方面和/或第三方面中的方法。具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备用于执行上述第一方面和/或第三方面中的方法。
第九方面，提供了一种芯片，用于执行上述第二方面和/或第三方面中的方法。具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备用于执行上述第二方面和/或第三方面中的方法。
第十方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面和/或第三方面中的方法。
第十一方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第二方面和/或第三方面中的方法。
第十二方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面和/或第三方面中的方法。
第十三方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第二方面和/或第三方面中的方法。
第十四方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面和/或第三方面中的方法。
第十五方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面和/或第三方面中的方法。
附图说明
图1是一种适用于本申请的通信系统的示意图；
图2是本申请提供的一种建立会话的方法的示意图；
图3是本申请提供的另一种建立会话的方法的示意图；
图4是本申请提供的一种处理会话的方法的示意图；
图5是本申请提供的另一种处理会话的方法的示意图；
图6是本申请提供的一种通信装置的示意图；
图7是本申请提供的另一种通信装置的示意图；
图8是本申请提供的再一种通信装置的示意图；
图9是本申请提供的一种通信设备的示意图。
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，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
首先介绍本申请的应用场景，图1是一种适用于本申请的通信系统的示意图。
通信系统100包括网络设备110和终端设备120。终端设备120可以与网络设备110进行通信。例如，终端设备120可以通过无线电波与网络设备110进行通信，也可以通过光纤或电缆与网络设备110进行通信。
在本申请中，终端设备120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，例如，第三代合作伙伴计划(3rd generation partnership project，3GPP)所定义的用户设备(user equipment，UE)，移动台(mobile station，MS)，软终端，家庭网关，机顶盒等等。
网络设备110可以是符合3GPP规范的接入网设备和/或核心网设备，例如，5G移动通信系统中的基站(gNB)和/或核心网设备。网络设备110也可以是非3GPP(non-3GPP)的网络设备，例如接入网关(access gateway，AGF)。网络设备110还可以是中继站、接入点、车载设备、可穿戴设备以及其它类型的设备。
通信系统100仅是举例说明，适用本申请的通信系统不限于此。
终端设备120可以使用不同的接入技术传输数据。例如，终端设备120可以通过3GPP接入网与3GPP核心网(如图1中的网络设备110)进行通信，终端设备120还可以通过非3GPP交互功能(non-3GPP interworking function，N3IWF)与3GPP核心网进行通信。下面将详细描述本申请提供的建立会话的方法。
图2是本申请提供的一种建立会话的方法的示意图。方法200包括：
S210，向网络设备发送会话建立请求。
当终端设备需要建立第一会话时，终端设备可以向网络设备发送会话建立请求，该会话建立请求请求建立第一会话，该会话建立请求包括第一指示信息，第一指示信息指示第一会话为去激活会话或者激活会话。本申请中，“第一”、“第二”等词语用于表示不同的个体，例如，“第一会话”与“第二会话”表示两个不同的会话，除此之外，不存在其它限定。
去激活会话可以被解释为：缺少用户面资源的会话；相应地，激活会话可以被解释为：包括用户面资源的会话。
用户面资源例如是Uu接口的数据承载(即，DRB)和N3隧道。当一个会话在一段时间内没有数据传输，或者当网络设备(或终端设备)的资源不足时，网络设备或者终端设备可以触发去激活流程，去激活该会话。
去激活会话的上下文仍然保存在终端设备和核心网设备，例如，会话标识、互联网协议(internet protocol，IP)地址和服务质量(quality of service，QoS)规则等信息仍然保存在终端设备和核心网设备中，但是，(无线)接入网((radio)access network，(R)AN)中与去激活会话相关的上下文被删除。
当有上行数据或者下行数据需要传输时，终端设备或者核心网设备可以通过服务请求(service request)流程激活去激活会话的用户面资源，使去激活会话变为激活会话，通过该激活会话传输上行数据或者下行数据。终端设备或者核心网设备通过服务请求流程激活去激活会话的过程可以参考现有技术，为了简洁，在此不再赘述。
方法200中的网络设备例如是会话管理功能(session management function，SMF)，终端设备可以通过(R)AN向SMF发送会话建立请求，也可以通过接入和移动性管理功能(access and mobility management function，AMF)向SMF发送会话建立请求，也可以通过(R)AN和AMF向SMF发送会话建立请求。相应地，SMF可以通过(R)AN从终端设备接收会话建立请求，也可以通过AMF从终端设备接收会话建立请求，也可以通过(R)AN和AMF从终端设备接收会话建立请求。本申请对终端设备与网络设备之间传输会话建立请求的方式不做限定。
由于会话建立请求中包含第一指示信息，因此，终端设备能够指示网络设备第一会话的类型，即，第一会话为激活会话还是去激活会话。
例如，若终端设备当前激活会话的数量未达到数量阈值，则该终端设备可以通过第一指示信息请求网络设备建立激活的第一会话；若终端设备当前激活会话的数量已达到数量阈值，则该终端设备可以通过第一指示信息请求网络设备建立去激活的第一会话，待当前激活会话的数量小于数量阈值时，终端设备或者网络设备可以激活第一会话。相比于在当前激活会话的数量小于数量阈值后新建第一会话的方案，先建立去激活会话再激活会话的方案能够快速建立激活会话，减小数据的传输时延。
又例如，若终端设备的DRB的数量未达到数量阈值，则该终端设备可以通过第一指示信息请求网络设备建立激活的第一会话；若终端设备DRB的数量已达到数量阈值，则该终端设备可以通过第一指示信息请求网络设备建立去激活的第一会话，待DRB的数量小于数量阈值时，终端设备或者网络设备可以激活第一会话。相比于在DRB的数量小于数量阈值后新建第一会话的方案，先建立去激活会话再激活会话的方案能够快速建立激活会话，减小数据的传输时延。
上述“当前激活会话的数量”可以被解释为：在终端设备运行程序确定激活会话的数量是否达到数量阈值的时刻，终端设备上存在的激活会话的数量。在本申请中，终端设备或者网络设备在执行“确定步骤”时，“确定条件”均指的是执行“确定步骤”的时刻的条件。例如，对于下列确定步骤：当终端设备的DRB的数量小于数量阈值时，确定第一会话为激活会话；“终端设备的DRB的数量小于数量阈值”为确定条件，该确定条件中的DRB指的是执行该确定步骤时终端设备上存在的DRB。此外，若无特别说明，本申请中的DRB均为激活的DRB。
对于网络设备，若会话建立请求不包含第一指示信息，网络设备无法确定第一会话的类型，可能会基于约束条件(例如，当前激活会话的数量不得超出数量阈值)拒绝建立第一会话。因此，包含第一指示信息的会话建立请求能够避免网络设备误判终端设备的意图，在不突破约束条件的前提下提前建立会话。
第一指示信息可以是会话建立请求中的一个比特。例如，该比特取值为“0”时，第一指示信息指示第一会话为激活会话；该比特取值为“1”时，表示第一会话为去激活会话。本申请对第一指示信息的具体形式不做限定。
终端设备在发送会话建立请求之前可以确定第一会话的类型，即，确定第一会话为激活会话还是去激活会话。
例如，当终端设备的当前激活会话的数量小于数量阈值时，确定第一会话为激活会话；或者，当终端设备的当前激活会话的数量等于数量阈值时，确定第一会话为去激活会话。
又例如，当终端设备的DRB的数量小于数量阈值时，确定第一会话为激活会话；或者，当终端设备的DRB的数量等于数量阈值时，确定第一会话为去激活会话。
在NB-IoT中，会话与DRB是一一对应的，因此，当前激活会话的数量与DRB的数量是等价的。上述数量阈值例如是2。基于当前激活会话的数量或者DRB的数量确定第一会话的类型，能够避免当前激活会话的数量(或者DRB的数量)超出网络设备或者通信协议规定的数量阈值。
除了依据当前激活会话的数量确定第一会话的类型之外，终端设备还可以基于第一会话的优先级确定第一会话的类型。会话的优先级可以是使用该会话的业务的优先级，也可以是根据业务的优先级推导出的会话的优先级。
例如，当第一会话的优先级高于或等于目标优先级时，确定第一会话为激活会话；或者，当第一会话的优先级低于目标优先级时，确定第一会话为去激活会话。
目标优先级可以是网络设备配置的优先级，也可以是终端设备确定的优先级(例如，终端设备的用户设置的优先级)，还可以是通信协议定义的优先级。
例如，目标优先级为安全警报级别。若第一会话为业务数据的会话，则第一会话的优先级为普通业务级别，普通业务级别低于安全警报级别，终端设备可以确定第一会话为去激活会话；若第一会话为安全警报数据的会话，则第一会话的优先级为安全警报级别，终端设备可以确定第一会话为激活会话(此时，终端设备可以忽略数量阈值的限制)。
可选地，终端设备还可以根据数量阈值和第一会话的优先级确定第一会话的类型。
例如，数量阈值为2。若DRB的数量为0，终端设备可以在第一会话的优先级低于或等于或高于目标优先级时，确定第一会话为激活会话；若DRB的数量为1，终端设备可以在第一会话的优先级等于或高于目标优先级时，确定第一会话为激活会话，终端设备可以在第一会话的优先级低于目标优先级时，确定第一会话为去激活会话；若DRB的数量为2，则终端设备可以在第一会话的优先级高于目标优先级时，确定第一会话为激活会话，终端设备可以在第一会话的优先级低于或等于目标优先级时，确定第一会话为去激活会话。
上述示例可以使得终端设备在不同的资源使用率的情况下得到灵活的服务，在满足基本通信需求的前提下提高通信质量。
网络设备确定第一会话的类型的方法与上述终端设备确定第一会话的类型的方法相似，网络设备也可以基于当前激活会话的数量和/或第一会话的优先级确定第一会话的类型。
网络设备的判定条件与终端设备的判定条件可能会有所不同。例如，当第一会话的优先级等于目标优先级时，终端设备确定第一会话为激活会话，并通过第一指示信息指 示第一会话为激活会话；网络设备可以在该情况下确定第一会话为去激活会话。
网络设备确定第一会话的类型之后，可以向终端设备发送第一会话的会话建立请求的响应消息。相应地，终端设备可以执行下述步骤。
S220，从所述网络设备接收所述会话建立请求的响应消息。
该响应消息可以包含指示第一会话为激活会话的信息，也可以包含指示第一会话为去激活会话的信息。
例如，第一指示信息指示第一会话为去激活会话，若上述响应消息包含肯定应答(acknowledgement，ACK)，则表示第一会话建立成功，并且，第一会话为去激活会话；若上述响应消息包含否定应答(non-acknowledgement，NACK)，则表示第一会话建立失败。
又例如，第一指示信息指示第一会话为激活会话，若上述响应消息包含ACK，则表示第一会话建立成功，并且，第一会话为激活会话；若上述响应消息包含NACK，则表示第一会话建立成功，但第一会话为去激活会话。
又例如，第一指示信息指示第一会话为激活会话，若上述响应消息包含ACK，则表示第一会话建立成功，并且，第一会话为激活会话；若上述响应消息包含NACK，则表示第一会话建立失败。
当响应消息指示第一会话建立成功，并且，第一会话为去激活会话时，方法200还包括：
当所述第一会话满足目标条件时，激活第一会话。
目标条件可以是预设的，也可以是网络设备动态指示的。激活第一会话的流程可以是终端设备触发的，也可以是网络设备触发的。
上述第一会话满足目标条件可以是当前激活会话的数量小于数量阈值，例如，终端设备的部分应用长时间无数据传输，则终端设备去激活或者释放了当前激活会话中的部分会话，使得当前激活会话的数量小于数量阈值。
上述第一会话满足目标条件也可以是也可以是第一会话的优先级高于或等于目标优先级，例如，第一会话经过较长的一段时间后仍未被激活，导致数据长时间未能传输，终端设备可以提升第一会话的优先级，使得第一会话的优先级高于或等于目标优先级。
可选地，若响应消息指示第一会话建立失败；或者，若第一指示信息指示第一会话为激活会话，而响应消息指示第一会话为去激活会话；则方法200还可以包括：
终端设备根据响应消息确定在第一时段内不进行会话建立和/或会话激活。
第一时段可以是预设的时段，也可以是响应消息中指示的时段。终端设备可以在接收到响应消息后启动定时器，将该定时器的运行时长设置为第一时段的时长，在该定时器运行期间不再发起会话建立流程。
在方法200中，若网络设备确定第一会话为去激活会话，则网络设备可以确定不向(R)AN发送用于建立第一会话的DRB的会话消息(例如，N2SM Info)，以避免(R)AN建立第一会话的DRB。或者，网络设备也可以向(R)AN发送会话消息，该会话消息包含(R)AN建立DRB所需的部分信息，以避免(R)AN建立第一会话的DRB。
例如，SMF通过AMF向(R)AN发送N2SM Info，N2SM Info包括第一会话的会话标识，(R)AN无法仅根据第一会话的会话标识建立DRB。因此，(R)AN接收到N2SM Info后，建立去激活的第一会话，也就是(R)AN只保存第一会话的上下文，但是不配置或不 建立针对第一会话的DRB。可选地，N2SM Info还可以包括第二指示信息，指示(R)AN建立去激活的第一会话，或者，指示(R)AN第一会话的DRB被禁止建立。
终端设备与网络设备之间建立第一会话的流程如图3所示。该流程包括：
S301，UE向(R)AN发送无线资源控制(radio resource control，RRC)消息，该RRC消息包括非接入层(non-access stratum，NAS)消息，该NAS消息包括PDU会话标识、单一网络切片选择辅助信息(single-network slice selection assistance information，S-NSSAI)、数据网络名称(data network name，DNN)和PDU会话建立请求(PDU session establishment request)，该PDU会话建立请求请求建立第一会话，并且，该PDU会话建立请求包括第一指示信息。其中，如果UE当前已经建立了2个激活会话(或者2个DRB)，第一指示信息指示第一会话为去激活会话。
S302，(R)AN通过N2消息将接收到的NAS消息转发给AMF。
S303，AMF根据DNN、S-NSSAI等信息选择SMF，并通过调用Nsmf服务将UE标识、PDU会话标识、DNN、S-NSSAI以及PDU会话建立请求转发给该SMF。
S304，SMF接收到第一指示信息后，若确定第一会话为去激活会话，则不向(R)AN发送N2SM info，这样，(R)AN就不会为第一会话建立DRB。或者，SMF也可以向(R)AN发送N2SM info(包含用户面功能(user plane function，UPF，)的隧道标识)，并且，SMF还向(R)AN发送第二指示信息，指示第一会话为去激活会话，(R)AN接收到第二指示信息后只保存第一会话的上下文，但是不配置或不建立针对第一会话的DRB。SMF可以通过调用Namf服务将UPF的隧道标识发送给AMF。
S305，AMF通过(R)AN将响应消息发送给UE，该响应消息例如是PDU会话建立接受(PDU session establishment accept)，PDU会话建立接受可以包括确认指示，指示第一会话已建立。PDU会话建立接受可以承载于下行NAS消息中。
UE接收到响应消息后，确定第一会话建立成功，并且，第一会话未激活。待当前激活会话中有一个会话被去激活或者被释放后，UE可以发起服务请求流程激活第一会话，传输数据。
上文详细描述了本申请提供的建立会话的方法，下面，再介绍本申请提供的处理当前激活会话(例如，第二会话)的方法。
如图4所示，方法400包括：
S410，根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，所述第二会话为激活会话，所述第一会话、所述第二会话和所述数据通道对应相同的终端设备。
方法400可以由终端设备执行，也可以由网络设备(例如，SMF或(R)AN)执行，或者，可以由上述设备中的芯片执行。
当方法400由终端设备执行时，终端设备可以获取应用层或用户设备路由选择策略(UE route selection policy，URSP)处理层(handling layer)或操作系统生成的会话消息，该会话消息请求建立或激活第一会话。终端设备响应该会话消息，执行S410；该方案也可以被解释为会话消息触发终端设备执行S410。
当方法400由SMF执行时，SMF可以从终端设备获取会话消息(例如，第一会话的会话建立请求或服务请求)，SMF响应该会话消息，执行S410；即，会话消息触发SMF执行S410。SMF也可以从UPF获得会话消息，该会话消息例如是下行数据通知(DL data  notification)。
当方法400由(R)AN执行时，(R)AN可以从AMF获取SMF发送的会话消息，该会话消息通知(R)AN建立第一会话，(R)AN响应该会话消息，执行S410；即，会话消息触发(R)AN执行S410。
第二会话的处理方式可以是去激活，也可以是释放，还可以是不去激活，还可以是不释放。方法400的执行装置确定第二会话的处理方式后，可以基于第二会话的处理结果确定第一会话的处理方式，第一会话是待激活的会话，或者，第一会话是待建立的会话。例如，终端设备可以确定是否建立第一会话，或者，确定是否激活第一会话。因此，方法400能够协调终端设备上各个会话之间的关系，避免或减小新建的会话或新激活的会话对当前激活会话的负面影响。
上述数据通道可以是当前激活会话，也可以是DRB。当数据通道为当前激活会话时，方法400的执行装置可以根据第一会话的优先级和/或当前激活会话的数量确定第二会话的处理方式；当数据通道为DRB时，方法400的执行装置可以根据第一会话的优先级和/或DRB的数量确定第二会话的处理方式。下面，以数据通道为当前激活会话为例进行说明。
作为一个可选的示例，当当前激活会话的数量等于数量阈值时，执行装置根据第一会话的优先级确定第二会话的处理方式；或者，当当前激活会话的数量小于数量阈值时，执行装置确定不根据第一会话的优先级确定第二会话的处理方式。
若执行装置为终端设备，当当前激活会话的数量小于数量阈值时，终端设备可以不发起释放或去激活第二会话的流程；当当前激活会话的数量等于数量阈值时，终端设备可以根据第一会话的优先级(或第二会话的优先级)确定是否发起释放或去激活第二会话的流程。SMF同样适用于该示例。
若执行装置为(R)AN，并且，(R)AN接收到建立或者激活第一会话的会话消息，则(R)AN可以在当前激活会话的数量小于数量阈值的情况下，不去激活或者不释放第二会话；或者，(R)AN可以在当前激活会话的数量等于数量阈值的情况下，根据第一会话的优先级(或第二会话的优先级)确定是否去激活或者释放第二会话。
上述示例中，数量阈值可以是2。
作为一个可选的示例，根据第一会话的优先级确定第二会话的处理方式，可以包括：
当第一会话的优先级满足优先级要求时，执行装置去激活所述第二会话，或者，执行装置释放所述第二会话；或者，当第一会话的优先级不满足优先级要求时，执行装置确定不去激活第二会话，或者，执行装置确定不释放第二会话。
若执行装置为终端设备，当第一会话的优先级不满足优先级要求时，终端设备可以不发起释放或去激活第二会话的流程；当第一会话的优先级满足优先级要求时，终端设备可以发起释放或去激活第二会话的流程。SMF同样适用于该示例。
例如，第一会话的优先级为普通业务级别，而优先级要求为新建或者新激活的会话的优先级需要达到安全警报级别，普通业务级别低于安全警报级别，则终端设备或者SMF可以不发起释放或去激活第二会话的流程。
若执行装置为(R)AN，并且，(R)AN接收到建立或者激活第一会话的会话消息，则(R)AN可以在第一会话的优先级不满足优先级要求的情况下，不去激活或者不释放第二会话，且拒绝建立或激活第一会话；或者，(R)AN可以在第一会话的优先级满足优先级 要求的情况下，去激活或者释放第二会话。
上述“第一会话的优先级满足优先级要求”可以是第一会话的优先级等于或高于优先级阈值，也可以是第一会话的优先级等于或高于第二会话的优先级；相应地，上述“第一会话的优先级不满足优先级要求”可以是第一会话的优先级低于优先级阈值，也可以是第一会话的优先级低于第二会话的优先级。上述优先级阈值可以是网络设备配置的，也可以是终端设备确定的，还可以是通信协议规定的。
在上述示例中，若终端设备发起去激活第二会话的流程，则方法400可以包括：
终端设备向网络设备(例如，SMF)发送去激活请求，该去激活请求指示去激活第二会话。
第二会话可以包括一个传输路径，也可以包括至少两个传输路径，该至少两个传输路径可以包括新无线(new radio，NR)传输路径和长期演进(long term evolution，LTE)传输路径，或者，该至少两个路径可以包括3GPP传输路径和非3GPP传输路径。本申请对第二会话的至少两个传输路径不做限定。
当第二会话包括至少两个传输路径时，去激活请求可以包括指示信息，该指示信息可以指示去激活第二会话的至少两个路径中的至少一个路径。
去激活请求中的指示信息可以是1个或者多个比特，也可以是其它形式的信息，本申请对去激活请求中的指示信息的具体形式不做限定。
可选地，上述去激活请求还包括原因值，该原因值指示去激活第二会话的原因。去激活第二会话的原因可以是以下内容中的至少一个：资源不足、资源使用量超过资源阈值、终端设备的DRB的数量已经达到2。
上述资源可以是终端设备的处理器资源，例如，终端设备的处理器负担较重，无法承载3个或3个以上的DRB(即，资源不足)；或者，终端设备的处理器的使用率超过使用率阈值(即，资源使用量超过资源阈值)；则终端设备可以在去激活请求中写入上述原因。
终端设备向网络设备发送去激活请求后，可以从网络设备接收去激活请求的响应消息，该响应消息指示所述第二会话被去激活。
可选地，若终端设备确定第一会话建立失败，则终端设备可以在第一时段内不进行会话建立和/或激活。
第一时段可以是预设的时段，也可以是响应消息中指示的时段。终端设备可以在接收到响应消息后启动定时器，将该定时器的运行时长设置为第一时段的时长，在该定时器运行期间不再发起会话建立流程和/或会话激活流程。
可选地，若方法400的执行装置执行S410后，确定去激活或者释放第二会话，则终端设备和网络设备可以依据方法200或图3所示的方法建立激活的第一会话或去激活的第一会话。若方法400的执行装置执行S410后，确定不去激活或者不释放第二会话，则终端设备和网络设备可以依据方法200或图3所示的方法建立去激活的第一会话。
下面，再举出本申请提供的一个处理当前激活会话的例子。
当前UE已建立了2个激活会话(或2个DRB)，UE所在的通信系统规定每个终端设备最多同时维持2个激活会话(或2个DRB)。UE的应用请求建立新的会话，则UE可以根据该应用的业务的优先级决定是否去激活当前激活会话。
例如，一个正在传输聊天数据的UE，突然产生安全警报信息需要传输，安全警报信 息的优先级高于聊天数据的优先级，则该UE可以去激活传输日常数据的会话，为安全警报信息建立或激活会话。
UE去激活会话的流程如图5所示，该流程包括：
S501，UE通过(R)AN、AMF向SMF发送去激活请求，该去激活请求中包含第二会话的PDU会话标识、指示信息和原因值(可选的)，指示信息用于指示SMF去激活第二会话，原因值可以为资源不足、资源使用量超过资源阈值、UE的DRB已满2个等。
S502，SMF决定去激活第二会话。SMF可以向AMF发送会话消息，该会话消息可以包括给UE的N1SM info(可选的)和给(R)AN的N2SM info。N1SM info中包含S501中的去激活请求的响应消息，N2SM info中包含用户面释放信息，通知(R)AN释放DRB。
S503，AMF将N1SM info和N2SM info转发给(R)AN。
S504，(R)AN根据N2SM info释放第二会话的DRB，并把N1SM info通过RRC消息发送给UE。可选的，(R)AN也可以自己判断是否根据N2SM info释放第二会话的DRB。
S505，UE根据N1SM info或者根据第二会话的DRB被释放，确定第二会话的用户面被去激活。
如果第一会话已经建立，则UE可以通过服务请求流程激活第一会话的用户面来传输安全警报信息；如果第一会话未建立，则UE可以通过会话建立流程建立第一会话来传输安全警报信息。
如果第一会话建立失败或激活失败(例如，第一会话的优先级不满足要求)，UE的NAS层可以通知应用层和URSP处理层第一会话建立失败或激活失败，并设置一个定时器，该定时器运行结束前应用不能再发起会话建立或激活请求。
上文详细介绍了本申请提供的建立会话方法和处理会话的方法的示例。可以理解的是，通信装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，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。
本申请可以根据上述方法示例对通信装置进行功能单元的划分，例如，可以将各个功能划分为各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。需要说明的是，本申请中对单元的划分是示意性的，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。
图6是本申请提供的一种通信装置的结构示意图。该装置600包括处理单元610、发送单元620接收单元630，发送单元620能够在处理单元610的控制下执行发送步骤，接收单元630能够在处理单元610的控制下执行接收步骤(或获取步骤)。
发送单元620可以用于：向网络设备发送会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；
接收单元630可以用于：从所述网络设备接收所述会话建立请求的响应消息。
可选地，处理单元610用于：确定所述第一会话为激活会话或者去激活会话。
可选地，处理单元610具体用于：当所述终端设备的激活会话的数量小于数量阈值时，确定所述第一会话为激活会话；或者，当所述终端设备的激活会话的数量等于数量阈值时，确定所述第一会话为去激活会话。
可选地，处理单元610具体用于：当终端设备的DRB的数量小于数量阈值时，确定所述第一会话为激活会话；或者，当终端设备的DRB的数量等于数量阈值时，确定所述第一会话为去激活会话。
可选地，所述数量阈值为2。
可选地，处理单元610具体用于：当所述第一会话的优先级高于或等于目标优先级时，确定所述第一会话为激活会话；或者，当所述第一会话的优先级低于目标优先级时，确定所述第一会话为去激活会话。
可选地，所述第一指示信息指示所述第一会话为去激活会话，所述响应消息指示所述第一会话建立成功，处理单元610还用于：当所述第一会话和/或终端设备的DRB满足目标条件时，激活所述第一会话。
可选地，所述第一会话和/或终端设备的DRB满足目标条件，包括：所述终端设备的DRB的数量小于数量阈值。
可选地，所述第一会话和/或终端设备的DRB满足目标条件，包括：所述第一会话的优先级高于或等于目标优先级。
可选地，所述响应消息指示所述第一会话建立失败；或者，所述第一指示信息指示所述第一会话为激活会话，并且，所述响应消息指示所述第一会话为去激活会话；处理单元610还用于：根据所述响应消息确定在第一时段内不进行会话建立和/或会话激活。
可选地，处理单元610具体用于：根据所述响应消息启动定时器，所述定时器用于禁止在所述第一时段内进行会话建立和/或会话激活。
图7是本申请提供的一种通信装置的结构示意图。该装置700包括处理单元710、发送单元720和接收单元730。发送单元720能够在处理单元710的控制下执行发送步骤，接收单元730能够在处理单元710的控制下执行接收步骤(或获取步骤)。
接收单元730可以用于：从终端设备接收会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；
发送单元720可以用于：向所述终端设备发送所述会话建立请求的响应消息。
可选地，所述第一指示信息指示所述第一会话为去激活会话，发送单元720还用于：向接入网发送会话消息，所述会话消息用于所述接入网建立所述第一会话。
可选地，所述会话消息包括建立所述第一会话的DRB所需的部分信息。
可选地，所述第一指示信息指示所述第一会话为去激活会话，发送单元720还用于：确定不向接入网发送用于建立所述第一会话的DRB的会话消息。
可选地，处理单元710还用于：确定所述第一会话为激活会话或者去激活会话。
可选地，710处理单元具体用于：当所述终端设备的激活会话的数量小于数量阈值时，确定所述第一会话为激活会话；或者，当所述终端设备的激活会话的数量等于数量阈值时，确定所述第一会话为去激活会话。
可选地，处理单元710具体用于：当所述终端设备的DRB的数量小于数量阈值时，确定所述第一会话为激活会话；或者，当所述终端设备的DRB的数量等于数量阈值时， 确定所述第一会话为去激活会话。
可选地，所述数量阈值为2。
可选地，所述处理单元具体用于：当所述第一会话的优先级高于或等于目标优先级时，确定所述第一会话为激活会话；或者，当所述第一会话的优先级低于目标优先级时，确定所述第一会话为去激活会话。
图8是本申请提供的一种通信装置的结构示意图。该装置800包括处理单元810，处理单元810用于：
根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，所述第二会话为激活会话，所述第一会话、所述第二会话和所述数据通道对应相同的终端设备。
可选地，处理单元810具体用于：获取会话消息，所述会话消息用于建立所述第一会话，或者，所述会话消息用于激活所述第一会话；响应所述会话消息，根据所述第一会话的优先级和/或所述数据通道的数量确定所述第二会话的处理方式。
可选地，所述数据通道为激活会话，所述处理单元810具体用于：当所述激活会话的数量等于数量阈值时，根据所述第一会话的优先级确定所述第二会话的处理方式；或者，当所述激活会话的数量小于数量阈值时，确定不根据所述第一会话的优先级确定所述第二会话的处理方式。
可选地，所述数据通道为DRB，所述处理单元810具体用于：当所述DRB的数量等于数量阈值时，根据所述第一会话的优先级确定所述第二会话的处理方式；或者，当所述DRB的数量小于数量阈值时，确定不根据所述第一会话的优先级确定所述第二会话的处理方式。
可选地，所述数量阈值为2。
可选地，所述处理单元810具体用于：当所述第一会话的优先级满足优先级要求时，去激活所述第二会话，或者，释放所述第二会话；或者，当所述第一会话的优先级不满足优先级要求时，确定不去激活所述第二会话，或者，确定不释放所述第二会话。
可选地，当去激活所述第二会话时，所述处理单元810还用于：通过发送单元向网络设备发送去激活请求，所述去激活请求请求去激活所述第二会话。
可选地，所述第二会话包括至少两个传输路径，所述去激活请求包括指示信息，所述指示信息指示去激活所述第二会话的至少两个传输路径中的至少一个传输路径。
可选地，所述去激活请求还包括原因值，所述原因值指示去激活所述第二会话的原因。
可选地，所述原因包括以下内容中的至少一个：资源不足、资源使用量超过资源阈值、所述终端设备的DRB的数量已经达到2。
可选地，所述处理单元810还用于：通过接收单元从所述网络设备接收所述去激活请求的响应消息，所述响应消息指示所述第二会话被去激活。
可选地，所述处理单元810还用于：根据所述第一会话建立失败或所述第一会话激活失败确定在第一时段内不进行会话建立和/或会话激活。
可选地，所述处理单元810具体用于：根据所述第一会话建立失败或所述第一会话激活失败启动定时器，所述定时器用于禁止在所述第一时段内进行会话建立和/或会话激活。
图9示出了本申请提供的一种通信设备的结构示意图。图9中的虚线表示该单元或 该模块为可选的。设备900可用于实现上述方法实施例中描述的方法。设备900可以是终端设备或网络设备或芯片。
设备900包括一个或多个处理器901，该一个或多个处理器901可支持设备900实现图2至图5所对应方法实施例中的方法。处理器901可以是通用处理器或者专用处理器。例如，处理器901可以是中央处理器(central processing unit，CPU)。CPU可以用于对设备900进行控制，执行软件程序，处理软件程序的数据。设备900还可以包括通信单元905，用以实现信号的输入(接收)和输出(发送)。
例如，设备900可以是芯片，通信单元905可以是该芯片的输入和/或输出电路，或者，通信单元905可以是该芯片的通信接口，该芯片可以作为终端设备或网络设备或其它无线通信设备的组成部分。
又例如，设备900可以是终端设备或网络设备，通信单元905可以是该终端设备或该网络设备的收发器，或者，通信单元905可以是该终端设备或该网络设备的收发电路。
设备900中可以包括一个或多个存储器902，其上存有程序904，程序904可被处理器901运行，生成指令903，使得处理器901根据指令903执行上述方法实施例中描述的方法。可选地，存储器902中还可以存储有数据。可选地，处理器901还可以读取存储器902中存储的数据，该数据可以与程序904存储在相同的存储地址，该数据也可以与程序904存储在不同的存储地址。
处理器901和存储器902可以单独设置，也可以集成在一起，例如，集成在网络设备的单板或者终端设备的系统级芯片(system on chip，SOC)上。
设备900还可以包括天线906。通信单元905用于通过天线906实现设备900的收发功能。
处理器901执行通信方法的具体方式可以参见方法实施例中的相关描述。
应理解，上述方法实施例的各步骤可以通过处理器901中的硬件形式的逻辑电路或者软件形式的指令完成。处理器901可以是CPU、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件，例如，分立门、晶体管逻辑器件或分立硬件组件。
本申请还提供了一种计算机程序产品，该计算机程序产品被处理器901执行时实现本申请中任一方法实施例所述的方法。
该计算机程序产品可以存储在存储器902中，例如是程序904，程序904经过预处理、编译、汇编和链接等处理过程最终被转换为能够被处理器901执行的可执行目标文件。
本申请还提供了一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被计算机执行时实现本申请中任一方法实施例所述的方法。该计算机程序可以是高级语言程序，也可以是可执行目标程序。
该计算机可读存储介质例如是存储器902。存储器902可以是易失性存储器或非易失性存储器，或者，存储器902可以同时包括易失性存储器和非易失性存储器。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例 性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
本领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的装置和设备的具体工作过程以及产生的技术效果，可以参考前述方法实施例中对应的过程和技术效果，在此不再赘述。
在本申请所提供的几个实施例中，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的方法实施例的一些特征可以忽略，或不执行。以上所描述的装置实施例仅仅是示意性的，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，多个单元或组件可以结合或者可以集成到另一个系统。另外，各单元之间的耦合或各个组件之间的耦合可以是直接耦合，也可以是间接耦合，上述耦合包括电的、机械的或其它形式的连接。
应理解，在本申请的各种实施例中，各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请的实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中的术语“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。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
总之，以上所述仅为本申请技术方案的较佳实施例而已，并非用于限定本申请的保护范围。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (76)

  1. 一种建立会话的方法，其特征在于，应用于终端设备，包括：
    向网络设备发送会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；
    从所述网络设备接收所述会话建立请求的响应消息。
  2. 根据权利要求1所述的方法，其特征在于，所述向网络设备发送会话建立请求之前，还包括：
    确定所述第一会话为激活会话或者去激活会话。
  3. 根据权利要求2所述的方法，其特征在于，所述确定所述第一会话为激活会话或者去激活会话，包括：
    当所述终端设备的激活会话的数量小于数量阈值时，确定所述第一会话为激活会话；或者，
    当所述终端设备的激活会话的数量等于数量阈值时，确定所述第一会话为去激活会话。
  4. 根据权利要求2所述的方法，其特征在于，所述确定所述第一会话为激活会话或者去激活会话，包括：
    当所述终端设备的数据无线承载DRB的数量小于数量阈值时，确定所述第一会话为激活会话；或者，
    当所述终端设备的DRB的数量等于数量阈值时，确定所述第一会话为去激活会话。
  5. 根据权利要求3或4所述的方法，其特征在于，所述数量阈值为2。
  6. 根据权利要求2至5中任一项所述的方法，其特征在于，所述确定所述第一会话为激活会话或者去激活会话，包括：
    当所述第一会话的优先级高于或等于目标优先级时，确定所述第一会话为激活会话；或者，
    当所述第一会话的优先级低于目标优先级时，确定所述第一会话为去激活会话。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第一指示信息指示所述第一会话为去激活会话，所述响应消息指示所述第一会话建立成功，所述方法还包括：
    当所述第一会话和/或所述终端设备的DRB满足目标条件时，激活所述第一会话。
  8. 根据权利要求7所述的方法，其特征在于，所述第一会话和/或所述终端设备的DRB满足目标条件，包括：
    所述终端设备的DRB的数量小于数量阈值。
  9. 根据权利要求7或8所述的方法，其特征在于，所述第一会话和/或所述终端设备的DRB满足目标条件，包括：
    所述第一会话的优先级高于或等于目标优先级。
  10. 根据权利要求1至6中任一项所述的方法，其特征在于，所述响应消息指示所述第一会话建立失败；或者，所述第一指示信息指示所述第一会话为激活会话，并且，所述响应消息指示所述第一会话为去激活会话；所述方法还包括：
    根据所述响应消息确定在第一时段内不进行会话建立和/或会话激活。
  11. 根据权利要求10所述的方法，其特征在于，所述根据所述响应消息确定在第一时段内不进行会话建立和/或会话激活，包括：
    根据所述响应消息启动定时器，所述定时器用于禁止在所述第一时段内进行会话建立和/或会话激活。
  12. 一种建立会话的方法，其特征在于，应用于核心网设备，包括：
    从终端设备接收会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；
    向所述终端设备发送所述会话建立请求的响应消息。
  13. 根据权利要求12所述的方法，其特征在于，所述第一指示信息指示所述第一会话为去激活会话，所述方法还包括：
    向接入网发送会话消息，所述会话消息用于所述接入网建立所述第一会话。
  14. 根据权利要求13所述的方法，其特征在于，所述会话消息包括建立所述第一会话的数据无线承载DRB所需的部分信息。
  15. 根据权利要求13所述的方法，其特征在于，所述第一指示信息指示所述第一会话为去激活会话，所述方法还包括：
    确定不向接入网发送用于建立所述第一会话的DRB的会话消息。
  16. 根据权利要求12至15中任一项所述的方法，其特征在于，所述向所述终端设备发送所述会话建立请求的响应消息之前，所述方法还包括：
    确定所述第一会话为激活会话或者去激活会话。
  17. 根据权利要求16所述的方法，其特征在于，所述确定所述第一会话为激活会话或者去激活会话，包括：
    当所述终端设备的激活会话的数量小于数量阈值时，确定所述第一会话为激活会话；或者，
    当所述终端设备的激活会话的数量等于数量阈值时，确定所述第一会话为去激活会话。
  18. 根据权利要求16所述的方法，其特征在于，所述确定所述第一会话为激活会话或者去激活会话，包括：
    当所述终端设备的DRB的数量小于数量阈值时，确定所述第一会话为激活会话；或者，
    当所述终端设备的DRB的数量等于数量阈值时，确定所述第一会话为去激活会话。
  19. 根据权利要求17所述的方法，其特征在于，所述数量阈值为2。
  20. 根据权利要求16至19中任一项所述的方法，其特征在于，所述确定所述第一会话为激活会话或者去激活会话，包括：
    当所述第一会话的优先级高于或等于目标优先级时，确定所述第一会话为激活会话；或者，
    当所述第一会话的优先级低于目标优先级时，确定所述第一会话为去激活会话。
  21. 一种处理会话的方法，其特征在于，包括：
    根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，所述第二会话为激活会话，所述第一会话、所述第二会话和所述数据通道对应相同的终端设备。
  22. 根据权利要求21所述的方法，其特征在于，所述根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，包括：
    获取会话消息，所述会话消息用于建立所述第一会话，或者，所述会话消息用于激活所述第一会话；
    响应所述会话消息，根据所述第一会话的优先级和/或所述数据通道的数量确定所述第二会话的处理方式。
  23. 根据权利要求21或22所述的方法，其特征在于，所述数据通道为激活会话，所述根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，包括：
    当所述激活会话的数量等于数量阈值时，根据所述第一会话的优先级确定所述第二会话的处理方式；或者，
    当所述激活会话的数量小于数量阈值时，确定不根据所述第一会话的优先级确定所述第二会话的处理方式。
  24. 根据权利要求21或22所述的方法，其特征在于，所述数据通道为数据无线承载DRB，所述根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，包括：
    当所述DRB的数量等于数量阈值时，根据所述第一会话的优先级确定所述第二会话的处理方式；或者，
    当所述DRB的数量小于数量阈值时，确定不根据所述第一会话的优先级确定所述第二会话的处理方式。
  25. 根据权利要求23或24所述的方法，其特征在于，所述数量阈值为2。
  26. 根据权利要求21至25中任一项所述的方法，其特征在于，所述根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，包括：
    当所述第一会话的优先级满足优先级要求时，去激活所述第二会话，或者，释放所述第二会话；或者，
    当所述第一会话的优先级不满足优先级要求时，确定不去激活所述第二会话，或者，确定不释放所述第二会话。
  27. 根据权利要求26所述的方法，其特征在于，当去激活所述第二会话时，所述方法还包括：
    所述终端设备向网络设备发送去激活请求，所述去激活请求请求去激活所述第二会话。
  28. 根据权利要求27所述的方法，其特征在于，所述第二会话包括至少两个传输路径，所述去激活请求包括指示信息，所述指示信息指示去激活所述第二会话的至少两个传输路径中的至少一个传输路径。
  29. 根据权利要求27或28所述的方法，其特征在于，所述去激活请求还包括原因值，所述原因值指示去激活所述第二会话的原因。
  30. 根据权利要求29所述的方法，其特征在于，所述原因包括以下内容中的至少一个：资源不足、资源使用量超过资源阈值、所述终端设备的DRB的数量已经达到2。
  31. 根据权利要求27至30中任一项所述的方法，其特征在于，还包括：
    所述终端设备从所述网络设备接收所述去激活请求的响应消息，所述响应消息指示所述第二会话被去激活。
  32. 根据权利要求21至31中任一项所述的方法，其特征在于，还包括：
    所述终端设备根据所述第一会话建立失败或所述第一会话激活失败确定在第一时段内不进行会话建立和/或会话激活。
  33. 根据权利要求32所述的方法，其特征在于，所述终端设备根据所述第一会话建立失败或所述第一会话激活失败确定在第一时段内不进行会话建立，包括：
    所述终端设备根据所述第一会话建立失败或所述第一会话激活失败启动定时器，所述定时器用于禁止在所述第一时段内进行会话建立和/或会话激活。
  34. 一种建立会话的装置，其特征在于，包括处理单元、发送单元和接收单元，
    所述处理单元用于控制所述发送单元执行：向网络设备发送会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；
    所述处理单元用于控制所述接收单元执行：从所述网络设备接收所述会话建立请求的响应消息。
  35. 根据权利要求34所述的装置，其特征在于，所述处理单元还用于：
    确定所述第一会话为激活会话或者去激活会话。
  36. 根据权利要求35所述的装置，其特征在于，所述处理单元具体用于：
    当终端设备的激活会话的数量小于数量阈值时，确定所述第一会话为激活会话；或者，
    当终端设备的激活会话的数量等于数量阈值时，确定所述第一会话为去激活会话。
  37. 根据权利要求36所述的装置，其特征在于，所述处理单元具体用于：
    当终端设备的数据无线承载DRB的数量小于数量阈值时，确定所述第一会话为激活会话；或者，
    当终端设备的DRB的数量等于数量阈值时，确定所述第一会话为去激活会话。
  38. 根据权利要求36或37所述的装置，其特征在于，所述数量阈值为2。
  39. 根据权利要求35至38中任一项所述的装置，其特征在于，所述处理单元具体用于：
    当所述第一会话的优先级高于或等于目标优先级时，确定所述第一会话为激活会话；或者，
    当所述第一会话的优先级低于目标优先级时，确定所述第一会话为去激活会话。
  40. 根据权利要求34至39中任一项所述的装置，其特征在于，所述第一指示信息指示所述第一会话为去激活会话，所述响应消息指示所述第一会话建立成功，所述处理单元还用于：
    当所述第一会话和/或终端设备的DRB满足目标条件时，激活所述第一会话。
  41. 根据权利要求40所述的装置，其特征在于，所述第一会话和/或终端设备的DRB满足目标条件，包括：
    所述终端设备的DRB的数量小于数量阈值。
  42. 根据权利要求40或41所述的装置，其特征在于，所述第一会话和/或终端设备的DRB满足目标条件，包括：
    所述第一会话的优先级高于或等于目标优先级。
  43. 根据权利要求34至39中任一项所述的装置，其特征在于，所述响应消息指示 所述第一会话建立失败；或者，所述第一指示信息指示所述第一会话为激活会话，并且，所述响应消息指示所述第一会话为去激活会话；所述处理单元还用于：
    根据所述响应消息确定在第一时段内不进行会话建立和/或会话激活。
  44. 根据权利要求43所述的装置，其特征在于，所述处理单元具体用于：
    根据所述响应消息启动定时器，所述定时器用于禁止在所述第一时段内进行会话建立和/或会话激活。
  45. 一种建立会话的装置，其特征在于，包括处理单元、接收单元和发送单元，
    所述处理单元用于控制所述接收单元执行：从终端设备接收会话建立请求，所述会话建立请求请求建立第一会话，所述会话建立请求包括第一指示信息，所述第一指示信息指示所述第一会话为去激活会话或者激活会话；
    所述处理单元用于控制所述发送单元执行：向所述终端设备发送所述会话建立请求的响应消息。
  46. 根据权利要求45所述的装置，其特征在于，所述第一指示信息指示所述第一会话为去激活会话，所述发送单元还用于：
    向接入网发送会话消息，所述会话消息用于所述接入网建立所述第一会话。
  47. 根据权利要求46所述的装置，其特征在于，所述会话消息包括建立所述第一会话的数据无线承载DRB所需的部分信息。
  48. 根据权利要求46或47所述的装置，其特征在于，所述第一指示信息指示所述第一会话为去激活会话，所述发送单元还用于：
    确定不向接入网发送用于建立所述第一会话的DRB的会话消息。
  49. 根据权利要求45至48中任一项所述的装置，其特征在于，所述处理单元还用于：
    确定所述第一会话为激活会话或者去激活会话。
  50. 根据权利要求49所述的装置，其特征在于，所述处理单元具体用于：
    当所述终端设备的激活会话的数量小于数量阈值时，确定所述第一会话为激活会话；或者，
    当所述终端设备的激活会话的数量等于数量阈值时，确定所述第一会话为去激活会话。
  51. 根据权利要求49所述的装置，其特征在于，所述处理单元具体用于：
    当所述终端设备的DRB的数量小于数量阈值时，确定所述第一会话为激活会话；或者，
    当所述终端设备的DRB的数量等于数量阈值时，确定所述第一会话为去激活会话。
  52. 根据权利要求50所述的装置，其特征在于，所述数量阈值为2。
  53. 根据权利要求49至52中任一项所述的装置，其特征在于，所述处理单元具体用于：
    当所述第一会话的优先级高于或等于目标优先级时，确定所述第一会话为激活会话；或者，
    当所述第一会话的优先级低于目标优先级时，确定所述第一会话为去激活会话。
  54. 一种处理会话的装置，其特征在于，包括处理单元，用于：
    根据第一会话的优先级和/或数据通道的数量确定第二会话的处理方式，所述第二会 话为激活会话，所述第一会话、所述第二会话和所述数据通道对应相同的终端设备。
  55. 根据权利要求54所述的装置，其特征在于，所述处理单元具体用于：
    获取会话消息，所述会话消息用于建立所述第一会话，或者，所述会话消息用于激活所述第一会话；
    响应所述会话消息，根据所述第一会话的优先级和/或所述数据通道的数量确定所述第二会话的处理方式。
  56. 根据权利要求54或55所述的装置，其特征在于，所述数据通道为激活会话，所述处理单元具体用于：
    当所述激活会话的数量等于数量阈值时，根据所述第一会话的优先级确定所述第二会话的处理方式；或者，
    当所述激活会话的数量小于数量阈值时，确定不根据所述第一会话的优先级确定所述第二会话的处理方式。
  57. 根据权利要求54或55所述的装置，其特征在于，所述数据通道为数据无线承载DRB，所述处理单元具体用于：
    当所述DRB的数量等于数量阈值时，根据所述第一会话的优先级确定所述第二会话的处理方式；或者，
    当所述DRB的数量小于数量阈值时，确定不根据所述第一会话的优先级确定所述第二会话的处理方式。
  58. 根据权利要求56或57所述的装置，其特征在于，所述数量阈值为2。
  59. 根据权利要求54至58中任一项所述的装置，其特征在于，所述处理单元具体用于：
    当所述第一会话的优先级满足优先级要求时，去激活所述第二会话，或者，释放所述第二会话；或者，
    当所述第一会话的优先级不满足优先级要求时，确定不去激活所述第二会话，或者，确定不释放所述第二会话。
  60. 根据权利要求59所述的装置，其特征在于，当去激活所述第二会话时，所述处理单元还用于：
    通过发送单元向网络设备发送去激活请求，所述去激活请求请求去激活所述第二会话。
  61. 根据权利要求60所述的装置，其特征在于，所述第二会话包括至少两个传输路径，所述去激活请求包括指示信息，所述指示信息指示去激活所述第二会话的至少两个传输路径中的至少一个传输路径。
  62. 根据权利要求60或61所述的装置，其特征在于，所述去激活请求还包括原因值，所述原因值指示去激活所述第二会话的原因。
  63. 根据权利要求62所述的装置，其特征在于，所述原因包括以下内容中的至少一个：资源不足、资源使用量超过资源阈值、所述终端设备的DRB的数量已经达到2。
  64. 根据权利要求60至63中任一项所述的装置，其特征在于，所述处理单元还用于：
    通过接收单元从所述网络设备接收所述去激活请求的响应消息，所述响应消息指示所述第二会话被去激活。
  65. 根据权利要求54至64中任一项所述的装置，其特征在于，所述处理单元还用于：
    根据所述第一会话建立失败或所述第一会话激活失败确定在第一时段内不进行会话建立和/或会话激活。
  66. 根据权利要求65所述的装置，其特征在于，所述处理单元具体用于：
    根据所述第一会话建立失败或所述第一会话激活失败启动定时器，所述定时器用于禁止在所述第一时段内进行会话建立和/或会话激活。
  67. 一种终端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至11中任一项所述的方法，和/或，执行如权利要求21至33中任一项所述的方法。
  68. 一种网络设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求12至20中任一项所述的方法，和/或，执行如权利要求21至33中任一项所述的方法。
  69. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行：如权利要求1至11中任一项所述的方法，和/或，如权利要求21至33中任一项所述的方法。
  70. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求12至20中任一项所述的方法，和/或，使得安装有所述芯片的设备执行如权利要求21至33中任一项所述的方法。
  71. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行：如权利要求1至11中任一项所述的方法，和/或，如权利要求21至33中任一项所述的方法。
  72. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求12至20中任一项所述的方法，和/或，所述计算机程序使得计算机执行如权利要求21至33中任一项所述的方法。
  73. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行：如权利要求1至11中任一项所述的方法，和/或，如权利要求21至33中任一项所述的方法。
  74. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求12至20中任一项所述的方法，和/或，该计算机程序指令使得计算机执行如权利要求21至33中任一项所述的方法。
  75. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行：如权利要求1至11中任一项所述的方法，和/或，如权利要求21至33中任一项所述的方法。
  76. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求12至20中任一项所述的方法，和/或，所述计算机程序使得计算机执行如权利要求21至33中任一项所述的方法。
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110474969B (zh) * 2019-07-29 2021-07-16 华为技术有限公司 会话管理方法及装置
CN117715242B (zh) * 2023-12-15 2024-05-28 之江实验室 一种数据传输方法、系统、存储介质以及电子设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017189043A1 (en) * 2016-04-27 2017-11-02 Intel Corporation Systems, methods and devices for indicating support of more than one data radio bearer for cellular internet of things devices
CN107736040A (zh) * 2015-06-15 2018-02-23 三星电子株式会社 无线通信系统中的服务实现方法与装置
WO2018154356A1 (en) * 2017-02-23 2018-08-30 Nokia Technologies Oy Method and system for access protocol optimization for narrow band internet-of-things devices within a network environment
CN110062328A (zh) * 2018-01-15 2019-07-26 华为技术有限公司 一种会话处理方法及装置

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8238326B2 (en) * 2004-11-18 2012-08-07 Ruckus Wireless, Inc. Maintaining consistent network connections while moving through wireless networks
EP1912385B1 (en) * 2006-10-13 2009-08-26 Research In Motion Limited System and method for deactivating IP sessions of lower priority
CN102904914B (zh) * 2011-07-27 2017-04-12 中兴通讯股份有限公司 一种业务请求处理方法及装置
US9788233B2 (en) * 2014-11-14 2017-10-10 Aricent Holdings Luxembourg S.A.R.L. Fair distribution of radio resources between guaranteed bit rate (GBR) and non-GBR data bearers
EP3525545B1 (en) * 2016-10-07 2021-07-14 LG Electronics Inc. Methods for selecting session and service continuity mode in a wireless communication system
US11523319B2 (en) * 2017-01-09 2022-12-06 Lg Electronics Inc. Method for managing PDU session in wireless communication system and device for same
US10728952B2 (en) * 2017-01-09 2020-07-28 Huawei Technologies Co., Ltd. System and methods for session management
KR102395384B1 (ko) * 2017-03-20 2022-05-10 삼성전자 주식회사 셀룰러망의 효율적 pdu 세션 활성화 및 비활성화 방안
US10251147B2 (en) * 2017-03-20 2019-04-02 Samsung Electronics Co., Ltd. Method for supporting efficient PDU session activation and deactivation in cellular networks
WO2018171916A1 (en) * 2017-03-21 2018-09-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and node for handling handover in 5g networks
CN109548092B (zh) * 2017-07-28 2021-04-09 华为技术有限公司 一种激活session的方法、设备及系统
US10938583B2 (en) * 2017-10-09 2021-03-02 Comcast Cable Communications, Llc Ethernet type packet data unit session communications
CA3021658A1 (en) * 2017-10-20 2019-04-20 Comcast Cable Communications, Llc Non-access stratum capability information
EP3496465B1 (en) * 2017-12-08 2021-10-27 Comcast Cable Communications, LLC User plane function selection for isolated network slice
CN113438695B (zh) 2017-12-25 2022-06-21 大唐移动通信设备有限公司 一种会话建立的方法及装置
WO2019160788A1 (en) * 2018-02-13 2019-08-22 Idac Holdings, Inc. Sidelink resource pool activation
US11258549B2 (en) * 2018-05-10 2022-02-22 Comcast Cable Communications, Llc Packet duplication control
US11343701B2 (en) * 2018-05-15 2022-05-24 Sony Corporation Wireless communications apparatus and methods
US10880895B2 (en) * 2018-05-27 2020-12-29 Brian Gordaychik Variable length downlink control information formats for next generation radio technologies
CN110661772B (zh) * 2018-06-29 2021-02-26 华硕电脑股份有限公司 无线通信系统中处理侧链路传送的方法和用户设备
GB2581392A (en) * 2019-02-15 2020-08-19 Nec Corp Communications systems
WO2020249201A1 (en) * 2019-06-12 2020-12-17 Huawei Technologies Co., Ltd. Methods and devices for establishment of redundant pdu session
CN114271016A (zh) * 2019-06-21 2022-04-01 诺基亚技术有限公司 基于优先级的会话准入控制方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107736040A (zh) * 2015-06-15 2018-02-23 三星电子株式会社 无线通信系统中的服务实现方法与装置
WO2017189043A1 (en) * 2016-04-27 2017-11-02 Intel Corporation Systems, methods and devices for indicating support of more than one data radio bearer for cellular internet of things devices
WO2018154356A1 (en) * 2017-02-23 2018-08-30 Nokia Technologies Oy Method and system for access protocol optimization for narrow band internet-of-things devices within a network environment
CN110062328A (zh) * 2018-01-15 2019-07-26 华为技术有限公司 一种会话处理方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INTEL, HUAWEI, HISILICON: "Multiple DRB capability handling", 3GPP TSG-CT WG1 MEETING #99; C1-163640-MULTIPLE-DRB-24301-D61, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 29 July 2016 (2016-07-29), Tenerife (Spain); 20160725 - 20160729 ; France, XP051131584 *

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