WO2020087421A1 - 协议数据单元会话状态指示方法、终端设备及存储介质 - Google Patents

协议数据单元会话状态指示方法、终端设备及存储介质 Download PDF

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Publication number
WO2020087421A1
WO2020087421A1 PCT/CN2018/113211 CN2018113211W WO2020087421A1 WO 2020087421 A1 WO2020087421 A1 WO 2020087421A1 CN 2018113211 W CN2018113211 W CN 2018113211W WO 2020087421 A1 WO2020087421 A1 WO 2020087421A1
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WIPO (PCT)
Prior art keywords
drb
terminal device
pdu session
group
configuration signaling
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PCT/CN2018/113211
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English (en)
French (fr)
Inventor
石聪
刘建华
杨宁
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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.)
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Publication date
Priority to KR1020217014707A priority Critical patent/KR20210086650A/ko
Priority to CN201880074600.9A priority patent/CN111386689A/zh
Priority to PCT/CN2018/113211 priority patent/WO2020087421A1/zh
Priority to EP18938522.2A priority patent/EP3873064B1/en
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 SG11202104406QA priority patent/SG11202104406QA/en
Priority to EP22190295.0A priority patent/EP4106299A1/en
Priority to AU2018447611A priority patent/AU2018447611A1/en
Priority to CA3118227A priority patent/CA3118227A1/en
Priority to BR112021008093-7A priority patent/BR112021008093A2/pt
Priority to JP2021547617A priority patent/JP7194841B2/ja
Priority to MX2021005039A priority patent/MX2021005039A/es
Priority to CN202010778757.9A priority patent/CN111935853B/zh
Publication of WO2020087421A1 publication Critical patent/WO2020087421A1/zh
Priority to US17/241,418 priority patent/US11265959B2/en
Priority to US17/647,143 priority patent/US11737161B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/142—Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/143—Termination or inactivation of sessions, e.g. event-controlled end of session
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/22—Manipulation of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H04W80/10—Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]

Definitions

  • the present invention relates to the field of wireless communication technology, and in particular, to a protocol data unit session state indication method, terminal device, and storage medium.
  • the UE At the Non-Access Stratum (NAS) layer of the terminal equipment (User Equipment, UE), the UE needs to know the status of the protocol data unit (Protocol Data Unit, PDU) session, such as the activation state or the deactivation state So that the UE can decide whether to activate the PDU session. Therefore, how to determine the activation state or deactivation state of the PDU session of the NAS layer of the UE is an urgent problem to be solved.
  • PDU Protocol Data Unit
  • embodiments of the present invention provide a PDU session state indication method, terminal device, and storage medium, so that the NAS layer of the UE can determine the activation state or deactivation state of the PDU session.
  • an embodiment of the present invention provides a PDU session status indication method, including: a terminal device instructing PDU session activation and / or deactivation based on configuration signaling sent by a network device.
  • an embodiment of the present invention provides a terminal device.
  • the terminal device includes: a processing unit configured to indicate a protocol data unit session PDU session activation and / or deactivation based on configuration signaling sent by a network device.
  • an embodiment of the present invention provides a terminal device, including: a processor and a memory for storing a computer program that can be run on the processor, where the processor is used to execute the above when the processor is used to run the computer program The steps of the method performed by the terminal device.
  • an embodiment of the present invention provides a storage medium that stores an executable program, and when the executable program is executed by a processor, the method executed by the terminal device described above is implemented.
  • the UE can indicate the status of the PDU session is activated and / or deactivated based on configuration signaling sent by the network device, so that the NAS layer of the UE can determine the status of the PDU session.
  • Figure 1 is a schematic diagram of the QoS model of the related art 5G system
  • FIG. 2 is a schematic diagram of the structure of a communication system according to an embodiment of the invention.
  • FIG. 3 is a schematic diagram of an optional processing flow of a method for indicating a PDU session state according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of the composition of a terminal device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a hardware composition structure of a terminal device provided by an embodiment of the present invention.
  • QoS quality of service
  • one or more PDU sessions are established for each UE; at least one data radio bearer (Data Radio Bearers, DRB) is established for each PDU session.
  • DRB Data Radio Bearers
  • NG-RAN establishes at least one DRB for each PUD; when establishing a DRB, it also establishes a PDU session associated with the DRB.
  • NG-RAN can also establish other DRBs. These DRBs are associated with QoS flows of PDU sessions; NG-RAN establishes associations between data packets belonging to different PDU sessions and different DRBs.
  • the PDU session may be configured with a default DRB.
  • the UE maps the data packet to the PDU The default DRB corresponding to the session.
  • NG-RAN For each PDU session, NG-RAN performs how to map multiple QoS flows to DRB. NG-RAN may map a GBR stream and a non-GBR stream, or multiple GBR streams to the same DRB.
  • the present invention provides a PDU session status indication method.
  • the PDU session status indication method in the embodiment of the present application can be applied to various communication systems, such as: Global Mobile System (Global System of Mobile Communication, GSM) system and Code Division Multiple Access (Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (LTE) system, LTE frequency Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (Universal Mobile Telecommunication System, UMTS), Global Interoperability for Microwave Access, WiMAX ) Communication system or 5G system, etc.
  • GSM Global Mobile System
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • Universal Mobile Telecommunications System Universal Mobile Telecommunications
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 2.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks or network devices in future public land mobile networks (Public Land Mobile Network, PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNodeB evolved base station in an LTE system
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, an in-veh
  • the communication system 100 also includes at least one terminal device 120 within the coverage of the network device 110.
  • terminal equipment includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Lines (DSL), digital cables, and direct cable connections ; And / or another data connection / network; and / or via wireless interfaces, such as for cellular networks, wireless local area networks (Wireless Local Area Network, WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and / or another terminal device configured to receive / transmit communication signals; and / or Internet of Things (IoT) equipment.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Lines
  • WLAN wireless local area networks
  • digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device configured to communicate through a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal”, or “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communication Systems (PCS) terminals that can combine cellular radiotelephones with data processing, fax, and data communication capabilities; can include radiotelephones, pagers, Internet / internal PDA with network access, web browser, notepad, calendar, and / or Global Positioning System (GPS) receiver; and conventional laptop and / or palm-type receivers or others including radiotelephone transceivers Electronic device.
  • PCS Personal Communication Systems
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminal, user equipment (User Equipment, UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or User device.
  • Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal Digital Assistant (PDA), wireless communication Functional handheld devices, computing devices, or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in a 5G network, or terminal devices in a future-evolving PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • terminal equipment 120 may perform terminal direct connection (Device to Device, D2D) communication.
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • FIG. 2 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • the devices with communication functions in the network / system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiments of the present application.
  • the optional processing flow of the PDU session state indication method provided by the embodiment of the present invention, as shown in FIG. 3, includes the following steps:
  • Step S201 the terminal device instructs the protocol PDU session activation and / or deactivation based on the configuration signaling sent by the network device.
  • the UE receives configuration signaling sent by the network device, where the configuration signaling is used to instruct the terminal device to perform activation processing and / or deactivation processing on the PDU session.
  • PDU session has a corresponding relationship with DRB, a PDU session can be associated with a DRB, and a PDU session can also be associated with multiple DRBs.
  • the UE when the configuration signaling indicates to deactivate the first PDU session or the first group of PDU sessions, the UE releases the association with the first PDU session or the first group of PDU sessions based on the configuration signaling DRB. After the UE deactivates the first PDU session or the first group of PDU sessions, the radio resource control (Radio Resource Control, RRC) layer of the UE instructs the upper layer of the first PDU session or the first group of PDU sessions Is deactivated.
  • RRC Radio Resource Control
  • the UE releases all DRBs associated with the first group of PDU sessions.
  • the UE when the configuration signaling indicates the released first DRB identification ID or the first group of DRB IDs, the UE releases the first DRB ID or the first group based on the configuration signaling DRB corresponding to DRB ID.
  • the RRC layer of the UE instructs the higher layer that the status of the at least one PDU session is deactivated.
  • the fourth PDU session is associated with three DRBs
  • the first group of DRB IDs includes three DRB IDs
  • the three DRBs corresponding to the three DRB IDs are associated with the fourth PDU session; when the configuration signaling indicates the release of the first
  • the configuration signaling indicates the release of the first
  • the three DRBs corresponding to the three DRB IDs included in the first group of DRB IDs are all released, then the fourth PDU session has no DRB associated with it; at this time, the RRC layer of the UE
  • the status of the four PDU sessions is deactivated.
  • the configuration signaling indicates the released first DRB ID or the first group of DRB IDs, and the configuration signaling also indicates the second PDU associated with the second DRB corresponding to the second DRB ID.
  • the RRC layer of the terminal device indicates that the status of the second PDU session of the upper layer is deactivated.
  • the configuration signaling indicates the released first DRB ID, the first DRB ID is associated with the second PDU session, and the DRBs associated with the second PDU session are the first DRB, the second DRB, and the third DRB, respectively ;
  • the first DRB corresponds to the first DRB ID
  • the second DRB corresponds to the second DRB ID
  • the third DRB corresponds to the third DRB ID.
  • the configuration signaling only indicates the released first DRB ID, since the second PDU session associated with the first DRB corresponding to the first DRB ID also has a corresponding relationship with the second DRB and the third DRB; therefore, if the configuration The signaling does not indicate the deactivation of the second PDU session associated with the second DRB corresponding to the second DRB ID, or the deactivation of the second PDU session associated with the second DRB corresponding to the third DRB ID; then the UE does not respond to the second PDU session deactivation processing.
  • the configuration signaling indicates the deactivation of the second PDU session associated with the second DRB corresponding to the second DRB ID, or indicates the deactivation of the second PDU session associated with the second DRB corresponding to the third DRB ID;
  • the second PDU session performs deactivation processing; meanwhile, the RRC layer of the UE instructs the higher layer to deactivate the second PDU session.
  • the second DRB ID and the first DRB ID may be the same, the second DRB ID and the first DRB ID may also be different; the first DRB ID may belong to the first group of DRB ID, the first A DRB ID may not belong to the first group of DRB IDs.
  • the configuration signaling indicates a second DRB ID or a second group of DRB IDs added by the UE, and the UE adds a DRB corresponding to the second DRB ID or the second group of DRB IDs; when the UE When the added DRB is the first DRB of the third PDU session, the RRC layer of the UE indicates that the state of the third PDU session of the upper layer is active.
  • the configuration instruction in this embodiment of the present invention is an RRC reconfiguration (Reconfiguration) message
  • the RRC Reconfiguration message includes a radio bearer configuration (Radio Bearer Config).
  • the UE can indicate the status of the PDU session is activated and / or deactivated based on the configuration signaling sent by the network device; the UE at the AS layer indicates the status of the PDU session to the NAS layer, so that the NAS layer of the UE can Determine the status of the PDU session.
  • An embodiment of the present invention further provides a terminal device.
  • a schematic structural diagram of the composition of the terminal device 300, as shown in FIG. 4, includes:
  • the processing unit 301 is configured to instruct PDU session activation and / or deactivation based on configuration signaling sent by the network device.
  • the configuration signaling instructs to deactivate the first PDU session or the first group of PDU sessions
  • the processing unit 301 is configured to instruct the high-level first PDU session or the first group of PDU sessions to go activation.
  • the processing unit 301 is further configured to release the DRB associated with the first PDU session, or release the DRB associated with the first group of PDU sessions.
  • the configuration signaling indicates the released first DRB ID or first group of DRB IDs
  • the processing unit 301 releases the DRB or first group corresponding to the first DRB ID based on the configuration signaling
  • the DRB corresponding to the DRB ID causes that at least one PDU session does not have an associated DRB
  • the processing unit 301 is configured to instruct the higher layer to deactivate the at least one PDU session.
  • the configuration signaling further instructs the second PDU associated with the second DRB corresponding to the second DRB ID to deactivate the session
  • the processing unit 301 is configured to instruct the higher layer to deactivate the second PDU session ;
  • the second DRB ID is the same as or different from the first DRB ID, the first DRB ID belongs to the first group of DRB IDs, or the first DRB ID does not belong to the first group of DRB IDs.
  • the configuration signaling indicates the second DRB ID or the second group DRB ID added by the UE, and the processing unit 301 adds the DRB or the second group DRB corresponding to the second DRB ID
  • the processing unit 301 is configured to instruct the higher layer to activate the third PDU session.
  • the UE involved in the embodiment of the present invention is located in the AS layer.
  • Embodiments of the invention also provide a terminal device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the PDU executed by the terminal device when the computer program is executed Session status indication method steps.
  • FIG. 5 is a schematic diagram of a hardware composition structure of a terminal device according to an embodiment of the present invention.
  • the terminal device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704.
  • the various components in the terminal device 700 are coupled together via a bus system 705.
  • the bus system 705 is used to implement connection and communication between these components.
  • the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for clarity, various buses are marked as the bus system 705 in FIG. 5.
  • the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory may be ROM, programmable read-only memory (PROM, Programmable Read-Only Memory), erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory), electrically erasable Programmable Read Only Memory (EEPROM, Electrically Erasable, Programmable Read-Only Memory), Ferromagnetic Random Access Memory (FRAM), Flash Memory (Flash), Magnetic Surface Memory, CD, or CD-ROM (CD -ROM, Compact, Disc, Read-Only, Memory); the magnetic surface memory can be either disk storage or tape storage.
  • the volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • SSRAM synchronous static random access memory
  • DRAM dynamic random access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced Type synchronous dynamic random access memory
  • SLDRAM SyncLink Dynamic Random Access Memory
  • direct memory bus random access memory DRRAM, Direct Rambus Random Access Random Access Memory
  • DRRAM Direct Rambus Random Access Random Access Memory
  • the memory 702 described in this embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal device 700. Examples of these data include: any computer program for operating on the terminal device 700, such as an application program 7022.
  • the program for implementing the method of the embodiment of the present invention may be included in the application program 7022.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 701, or implemented by the processor 701.
  • the processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in the form of software.
  • the aforementioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
  • the processor 701 may implement or execute the disclosed methods, steps, and logical block diagrams in the embodiments of the present invention.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium.
  • the storage medium is located in the memory 702.
  • the processor 701 reads the information in the memory 702 and completes the steps of the foregoing method in combination with its hardware.
  • the terminal device 700 may be implemented by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), complex programmable logic device (CPLD , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the aforementioned method.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • PLD programmable logic device
  • CPLD Complex Programmable logic device
  • FPGA general-purpose processor
  • controller MCU, MPU, or other electronic components to implement the aforementioned method.
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiments of the present application. No longer.
  • These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processing machine, or other programmable data processing device to produce a machine that enables the generation of instructions executed by the processor of the computer or other programmable data processing device
  • These computer program instructions may also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, the instructions The device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on the computer or other programmable device to produce computer-implemented processing, which is executed on the computer or other programmable device
  • the instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.

Abstract

本发明公开了一种协议数据单元会话状态指示方法，包括：终端设备基于网络设备发送的配置信令，指示协议数据单元会话激活和/或去激活。本发明还公开了一种终端设备及存储介质。

Description

协议数据单元会话状态指示方法、终端设备及存储介质 技术领域
本发明涉及无线通信技术领域，尤其涉及一种协议数据单元会话状态指示方法、终端设备及存储介质。
背景技术
在终端设备(User Equipment，UE)的非接入(Non-Access Stratum，NAS)层，UE需要知道协议数据单元(Protocol Data Unit，PDU)会话(session)的状态，如激活状态或去激活状态，以便UE决定是否需要激活PDU session。因此，UE的NAS层如何确定PDU session的激活状态或去激活状态是亟需解决的问题。
发明内容
为解决上述技术问题，本发明实施例提供一种PDU session状态指示方法、终端设备及存储介质，使得UE的NAS层能够确定PDU session的激活状态或去激活状态。
第一方面，本发明实施例提供一种PDU session状态指示方法，包括：终端设备基于网络设备发送的配置信令，指示PDU session激活和/或去激活。
第二方面，本发明实施例提供一种终端设备，所述终端设备包括：处理单元，配置为基于网络设备发送的配置信令，指示协议数据单元会话PDU session激活和/或去激活。
第三方面，本发明实施例提供一种终端设备，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述终端设备执行的方法的步骤。
第四方面，本发明实施例提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述终端设备执行的方法。
本发明实施例提供的PDU session状态指示方法，UE能够基于网络设备发送的配置信令，指示PDU session的状态为激活和/或去激活，使得UE的NAS层能够确定PDU session的状态。
附图说明
图1为相关技术5G系统的QoS模型示意图；
图2为本发明实施例通信系统的组成结构示意图；
图3为本发明实施例PDU session状态指示方法的可选处理流程示意图；
图4为本发明实施例提供的终端设备的组成结构示意图；
图5为本发明实施例提供的终端设备的硬件组成结构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点和技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
在对本发明实施例进行详细说明之前，先对5G系统的服务质量(Quality of Service，QoS)模型进行简要说明。
如图1所示，为每个UE建立一个或多个PDU session；为每个PDU session建立至少一个数据无线承载(Data Radio Bearers，DRB)。对于每个UE，NG-RAN至少为每个PUD建立一个DRB；在建立DRB时，同时建立与DRB关联的PDU session。并且，NG-RAN还可以建立其他的DRB，这些DRB与PDU session的QoS流具有关联关系；NG-RAN建立属于不同的PDU session的数据包与不同的DRB关联关系。
对于每个PDU session，在没有通过RRC信令为PDU session配置DRB、且没有配置PDU session与DRB的映射规则时，PDU session可能会被配置一个默认的DRB，此时UE将数据包映射到PDU session对应的默认的DRB。
对每个PDU session，由NG-RAN执行如何将多QoS流映射到DRB。NG-RAN可能将一个GBR流和一个非-GBR流，或者多个GBR流映射到同一个DRB。
本发明提供一种PDU session状态指示方法，本申请实施例PDU session状态指示方法可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、 全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统或5G系统等。
示例性的，本申请实施例应用的通信系统100如图2所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理 设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图2示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图2示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
本发明实施例提供的PDU session状态指示方法的可选处理流程，如图3所示，包括以下步骤：
步骤S201，终端设备基于网络设备发送的配置信令，指示协议PDU session激活和/或去激活。
本发明实施例中，UE接收网络设备发送的配置信令，所述配置信令用于指示终端设备对PDU session执行激活处理和/或去激活处理。PDU session与DRB具有对应关系，一个PDU session可以关联一个DRB，一个PDU session也可以关联多个DRB。
在一些实施例中，当配置信令指示去激活第一PDU session或第一组PDU session时，所述UE基于所述配置信令，释放与第一PDU session或第一组PDU session所关联的DRB。UE在对第一PDU session或第一组PDU session进行去激活后，所述UE的的无线资源控制(Radio Resource Control，RRC)层指示高层所述第一PDU session或所述第一组PDU session的状态为去激活。
举例来说，当配置信令指示去激活第一组PDU session时，所述UE释放与所述第一组PDU session所关联的所有DRB。
在另一些实施例中，所述配置信令指示释放的第一DRB标识ID或第一组DRB ID时，所述UE基于所述配置信令释放所述第一DRB ID或所述第一组DRB ID对应的 DRB。当UE释放DRB导致至少一个PDU session没有所关联的DRB时，所述UE的RRC层指示高层所述至少一个PDU session的状态为去激活。
举例来说，第四PDU session关联三个DRB，所述第一组DRB ID包括三个DRB ID，三个DRB ID对应的三个DRB关联第四PDU session；当所述配置信令指示释放第一组DRB ID时，所述第一组DRB ID包括的三个DRB ID对应的三个DRB均被释放，则第四PDU session没有与之关联的DRB；此时，UE的RRC层指示高层第四PDU session的状态为去激活。
在又一些实施例中，所述配置信令指示释放的第一DRB ID或第一组DRB ID，并且所述配置信令还指示第二DRB ID对应的第二DRB所关联的第二PDU session去激活时，所述终端设备的RRC层指示高层所述第二PDU session的状态为去激活。
举例来说，所述配置信令指示释放的第一DRB ID，第一DRB ID关联第二PDU session，与所述第二PDU session关联的DRB分别为第一DRB、第二DRB和第三DRB；第一DRB对应第一DRB ID，第二DRB对应第二DRB ID，第三DRB对应第三DRB ID。若配置信令仅指示释放的第一DRB ID，由于与第一DRB ID对应的第一DRB所关联的第二PDU session还与第二DRB和第三DRB存在对应关系；因此，若所述配置信令不指示第二DRB ID对应的第二DRB所关联的第二PDU session去激活，也不指示第三DRB ID对应的第二DRB所关联的第二PDU session去激活；则UE不对第二PDU session进行去激活处理。若所述配置信令指示第二DRB ID对应的第二DRB所关联的第二PDU session去激活，或指示第三DRB ID对应的第二DRB所关联的第二PDU session去激活；则UE对第二PDU session进行去激活处理；同时，UE的RRC层指示高层所述第二PDU session去激活。
这里，所述第二DRB ID与第一DRB ID可以相同，所述第二DRB ID与第一DRB ID也可以不同；所述第一DRB ID可以属于所述第一组DRB ID，所述第一DRB ID也可以不属于所述第一组DRB ID。
再一些实施例中，所述配置信令指示UE添加的第二DRB ID或第二组DRB ID，所述UE添加所述第二DRB ID或所述第二组DRB ID对应的DRB；当UE添加的DRB为第三PDU session的第一个DRB时，UE的RRC层指示高层所述第三PDU session的状态为激活。
可选地，本发明实施例所述配置指令为RRC重配置(Reconfiguration)消息，且所述RRC Reconfiguration消息包括无线承载配置(Radio Bearer Config)。
本发明实施例中，UE能够基于网络设备发送的配置信令，指示PDU session的状态为激活和/或去激活；通过AS层的UE向NAS层指示PDU session的状态，使得UE的NAS层能够确定PDU session的状态。
本发明实施例还提供一种终端设备，所述终端设备300的组成结构示意图，如图4所示，包括：
处理单元301，配置为基于网络设备发送的配置信令，指示PDU session激活和/或去激活。
本发明实施例中，所述配置信令指示去激活第一PDU session或第一组PDU session，所述处理单元301，配置为指示高层所述第一PDU session或所述第一组PDU session去激活。
本发明实施例中，所述处理单元301，还配置为释放与所述第一PDU session所关联的DRB，或释放与所述第一组PDU session所关联的DRB。
本发明实施例中，所述配置信令指示释放的第一DRB ID或第一组DRB ID，所述处理单元301基于所述配置信令释放所述第一DRB ID对应的DRB或第一组DRB ID对应的DRB，导致至少一个PDU session没有所关联的DRB时，
所述处理单元301，配置为指示高层所述至少一个PDU session去激活。
本发明实施例中，所述配置信令还指示第二DRB ID对应的第二DRB所关联的第二PDU session去激活，所述处理单元301，配置为指示高层所述第二PDU session去激活；
所述第二DRB ID与第一DRB ID相同或不同，所述第一DRB ID属于所述第一组DRB ID，或所述第一DRB ID不属于所述第一组DRB ID。
本发明实施例中，所述配置信令指示所述UE添加的第二DRB ID或第二组DRB ID，所述处理单元301添加所述第二DRB ID对应的DRB或所述第二组DRB ID对应的DRB为第三PDU session的第一个DRB时，所述处理单元301，配置为指示高层所述第三PDU session激活。
需要说明的是，本发明实施例所涉及的UE位于AS层。
发明实施例还提供一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述终端设备执行的PDU session状态指示方法的步骤。
图5是本发明实施例的终端设备的硬件组成结构示意图，终端设备700包括：至少 一个处理器701、存储器702和至少一个网络接口704。终端设备700中的各个组件通过总线系统705耦合在一起。可理解，总线系统705用于实现这些组件之间的连接通信。总线系统705除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图5中将各种总线都标为总线系统705。
可以理解，存储器702可以是易失性存储器或非易失性存储器，也可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是ROM、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，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(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本发明实施例描述的存储器702旨在包括但不限于这些和任意其它适合类型的存储器。
本发明实施例中的存储器702用于存储各种类型的数据以支持终端设备700的操作。这些数据的示例包括：用于在终端设备700上操作的任何计算机程序，如应用程序7022。实现本发明实施例方法的程序可以包含在应用程序7022中。
上述本发明实施例揭示的方法可以应用于处理器701中，或者由处理器701实现。处理器701可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器701中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器701可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)，或 者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器701可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器702，处理器701读取存储器702中的信息，结合其硬件完成前述方法的步骤。
在示例性实施例中，终端设备700可以被一个或多个应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、FPGA、通用处理器、控制器、MCU、MPU、或其他电子元件实现，用于执行前述方法。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选地，该计算机可读存储介质可应用于本申请实施例中的终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围，凡在 本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种协议数据单元会话状态指示方法，所述方法包括：
    终端设备基于网络设备发送的配置信令，指示协议数据单元会话PDU session激活和/或去激活。
  2. 根据权利要求1所述的方法，其中，所述终端设备基于网络设备发送的配置信令，指示PDU session激活和/或去激活，包括：
    所述配置信令指示去激活第一PDU session或第一组PDU session，所述终端设备的无线资源控制RRC层指示高层所述第一PDU session或所述第一组PDU session去激活。
  3. 根据权利要求2所述的方法，其中，所述终端设备的RRC层指示高层所述第一PDU session或第一组PDU session去激活之前，所述方法还包括：
    所述终端设备释放与所述第一PDU session所关联的数据无线承载DRB或所述第一组PDU session所关联的DRB。
  4. 根据权利要求1所述的方法，其中，所述终端设备基于网络设备发送的配置信令，指示PDU session激活和/或去激活，包括：
    所述配置信令指示释放的第一DRB标识ID或第一组DRB ID，所述终端设备基于所述配置信令释放所述第一DRB ID或所述第一组DRB ID对应的DRB，导致至少一个PDU session没有所关联的DRB时，所述终端设备的RRC层指示高层所述至少一个PDU session去激活。
  5. 根据权利要求4所述的方法，其中，所述终端设备基于网络设备发送的配置信令，指示PDU session激活和/或去激活，包括：
    所述配置信令还指示第二DRB ID对应的第二DRB所关联的第二PDU session去激活，所述终端设备的RRC层指示高层所述第二PDU session去激活；
    所述第二DRB ID与第一DRB ID相同或不同，所述第一DRB ID属于所述第一组DRB ID，或所述第一DRB ID不属于所述第一组DRB ID。
  6. 根据权利要求1所述的方法，其中，所述终端设备基于网络设备发送的配置信令，指示协议数据单元会话PDU session激活和/或去激活，包括：
    所述配置信令指示所述终端设备添加的第二DRB ID或第二组DRB ID，所述终端设备添加所述第二DRB ID对应的DRB或所述第二组DRB ID对应的DRB为第三PDU session的第一个DRB时，所述终端设备的RRC层指示高层所述第三PDU session激活。
  7. 一种终端设备，所述终端设备包括：
    处理单元，配置为基于网络设备发送的配置信令，指示协议数据单元会话PDU session激活和/或去激活。
  8. 根据权利要求7所述的终端设备，其中，所述配置信令指示去激活第一PDU session或第一组PDU session，所述处理单元，配置为指示高层所述第一PDU session或所述第一组PDU session去激活。
  9. 根据权利要求8所述的终端设备，其中，所述处理单元，还配置为释放与所述第一PDU session所关联的数据无线承载DRB，或释放与所述第一组PDU session所关联的DRB。
  10. 根据权利要求7所述的终端设备，其中，所述配置信令指示释放的第一DRB标识ID或第一组DRB ID，所述处理单元基于所述配置信令释放所述第一DRB ID对应的DRB或所述第一组DRB ID对应的DRB，导致至少一个PDU session没有所关联的DRB时，
    所述处理单元，配置为指示高层所述至少一个PDU session去激活。
  11. 根据权利要求10所述的终端设备，其中，所述配置信令还指示第二DRB ID对应的第二DRB所关联的第二PDU session去激活，所述处理单元，配置为指示高层所述第二PDU session去激活；
    所述第二DRB ID与第一DRB ID相同或不同，所述第一DRB ID属于所述第一组DRB ID，或所述第一DRB ID不属于所述第一组DRB ID。
  12. 根据权利要求7所述的终端设备，其中，所述配置信令指示所述终端设备添加的第二DRB ID或第二组DRB ID，所述处理单元添加所述第二DRB ID对应的DRB或所述第二组DRB ID对应的DRB为第三PDU session的第一个DRB时，
    所述处理单元，配置为指示高层所述第三PDU session激活。
  13. 一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，
    所述处理器用于运行所述计算机程序时，执行权利要求1至6任一项所述的协议数据单元会话状态指示方法的步骤。
  14. 一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现权利要求1至6任一项所述的协议数据单元会话状态指示方法。
PCT/CN2018/113211 2018-10-31 2018-10-31 协议数据单元会话状态指示方法、终端设备及存储介质 WO2020087421A1 (zh)

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KR1020217014707A KR20210086650A (ko) 2018-10-31 2018-10-31 프로토콜 데이터 유닛 세션 상태 지시 방법, 단말 기기 및 저장 매체
BR112021008093-7A BR112021008093A2 (pt) 2018-10-31 2018-10-31 método para indicar a situação de sessão de unidade de dados de protocolo, e dispositivo terminal
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