WO2018205351A1 - 一种通信系统间移动方法及装置 - Google Patents

一种通信系统间移动方法及装置 Download PDF

Info

Publication number
WO2018205351A1
WO2018205351A1 PCT/CN2017/088814 CN2017088814W WO2018205351A1 WO 2018205351 A1 WO2018205351 A1 WO 2018205351A1 CN 2017088814 W CN2017088814 W CN 2017088814W WO 2018205351 A1 WO2018205351 A1 WO 2018205351A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
qos flow
communication system
eps bearer
core network
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/088814
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
金辉
窦凤辉
杨皓睿
何岳
欧阳国威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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
Priority to EP17909293.7A priority Critical patent/EP3621354B1/en
Priority to KR1020217024840A priority patent/KR102334728B1/ko
Priority to AU2017413894A priority patent/AU2017413894B2/en
Priority to EP23168440.8A priority patent/EP4250868A3/en
Priority to CA3062906A priority patent/CA3062906C/en
Priority to KR1020197036076A priority patent/KR102288839B1/ko
Priority to EP21183351.2A priority patent/EP3952449B1/en
Priority to CN202010079673.6A priority patent/CN111465062B/zh
Priority to ES17909293T priority patent/ES2908270T3/es
Priority to EP25182894.3A priority patent/EP4642153A2/en
Priority to CN202010079741.9A priority patent/CN111465063B/zh
Priority to KR1020217038991A priority patent/KR102500723B1/ko
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to JP2019561240A priority patent/JP7021257B2/ja
Priority to CN201780005190.8A priority patent/CN108513726B/zh
Publication of WO2018205351A1 publication Critical patent/WO2018205351A1/zh
Priority to US16/677,257 priority patent/US11051224B2/en
Anticipated expiration legal-status Critical
Priority to US17/328,825 priority patent/US12114219B2/en
Priority to AU2021204507A priority patent/AU2021204507B2/en
Priority to JP2022014865A priority patent/JP2022070887A/ja
Priority to JP2023142941A priority patent/JP7725534B2/ja
Priority to US18/741,118 priority patent/US20240334285A1/en
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H04W36/0044—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of quality context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • 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
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00222—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between different packet switched [PS] network technologies, e.g. transferring data sessions between LTE and WLAN or LTE and 5G
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H04W36/00695—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using split of the control plane or user plane
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks
    • 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
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for moving between communication systems.
  • the 5th Generation (5G) mobile communication technology is an extension of the fourth generation (Forth Generation, 4G) mobile communication technology, featuring high performance, low latency and high capacity, and the highest data transmission speed can reach dozens. Above Gbps, the data transmission speed is 1000 times faster than the existing 4th generation (4G) network. Therefore, when the UE is in a 4G network and supports a 5G network, the UE can switch from the 4G network to the 5G network to obtain a higher data transmission speed.
  • the UE can be moved from the 4G network to the 3G network, because the EPS bearer of the UE in the 4G network and the PDP context of the 3G network are mapped one by one, and the QoS parameters of the 4G network and the 3G network are The QoS parameters are also mapped one by one, so that the UE can directly move from the 4G network to the 3G network.
  • the movement mentioned here includes two cases: when the UE is in the idle state, it reselects to the 3G network; when the UE is in the connected state, it switches to the 3G network.
  • the UE may send a Non-Access Stratus (NAS) Route Area Update (RAU) signaling to the SGSN, so that the UE and the PGW are local.
  • NAS Non-Access Stratus
  • RAU Route Area Update
  • the mapping of the QoS context is performed, and the UE maps the EPS bearer context to the PDP context.
  • the UE performs the mapping of the QoS context locally after receiving the handover instruction of the 4G base station.
  • the QoS flow in the 5G network replaces the EPS bearer in the 4G network, and the QoS flow is not mapped one by one with the EPS bearer, the QoS parameters are not one-to-one mapping, so that the UE moves from the 4G network to the 3G network according to the UE. In this way, the UE cannot be moved from the 4G network to the 5G network.
  • Embodiments of the present application provide a method and apparatus for moving between communication systems for moving a UE from a first communication system to a second communication system.
  • a method for moving between communication systems for moving a user equipment UE from a first communication system to a second communication system, the method comprising: receiving, by the UE, a first message, where the first message is used in the first Establishing or modifying a first EPS bearer for the UE in the communication system, where the first message includes first quality of service QoS flow information of the second communication system corresponding to the first EPS bearer; the UE saves the first QoS flow information, from the first G
  • the signaling system moves to the second communication system, for example, the UE moves from the 4G communication system to the 5G communication system; the UE determines QoS flow information used by the UE in the second communication system according to the first condition, and the first condition includes the first QoS Flow information.
  • the UE can directly enable the saved first QoS flow information after moving from the first communication system to the second communication system by saving the first QoS flow information in advance, thereby moving the UE to the second communication.
  • the system has corresponding QoS context information in the second communication system to ensure that services are normally performed without interruption.
  • the method before the UE receives the first message, the method further includes: when the UE establishes a PDN connection in the first communications system, the first The core network entity sends first information, the first information being used by the first core network entity to determine that the PDN connection is moveable from the first communication system to the second communication system.
  • the UE by using the first information, enables the first core network entity to determine that the PDN connection can be moved to the second communication system, so that the first core network entity sends the first QoS flow information for the UE.
  • the first information includes information indicating that the PDN connection can be moved to the second communication system; or, The one information includes information indicating that the PDN is connected to the service and session continuity (SSC) mode of the corresponding PDU session in the second communication system to the specified mode.
  • SSC session continuity
  • the method before the UE receives the first message, the method further includes: in the process of establishing a PDN connection in the first communications system, the UE is in the first The core network entity sends second information, the second information is used to indicate that the PDN is connected to the SSC mode of the corresponding PDU session in the second communication system.
  • the first quality of service QoS flow information includes one or more QoS rules .
  • the first EPS bearer is a default bearer; the first quality of service QoS flow
  • the information includes one or more of the following information: session aggregation maximum bit rate, SSC mode, PDU session identification, QoS rules.
  • the QoS rule includes one or more of the following information: QoS rule Identification, QoS flow identification, priority, packet filter; or, the QoS rule includes one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the method further includes: obtaining, by the UE, an identifier of the first QoS flow, where the identifier of the first QoS flow is an identifier of the first EPS bearer by the UE Obtained after adding a specific value; or, the identifier of the first QoS flow is obtained after the UE adds the identifier of the first EPS bearer to a specific field.
  • the UE saves the first QoS flow information, including The UE saves the correspondence between the bearer identifier of the first EPS bearer and the first QoS flow information; or the UE saves the correspondence between the first EPS bearer context and the first QoS flow information; or, the UE saves Corresponding relationship between the first EPS bearer context and the index information of the first QoS flow, the index information includes the first A QoS flow identifier, or a combination of a first QoS flow identifier and a PDU session identifier.
  • the UE moves from the first communications system to the first
  • the second communication system includes: the UE sends the first EPS bearer status information to the second core network entity, where the second core network entity is a core network entity in the second communication system that is responsible for UE access and mobility management, An EPS bearer status information is used to identify an EPS bearer of the UE that is in an active state and has QoS flow information; the UE receives a second message sent by the second core network entity, and the second message includes the second EPS bearer status information, The second EPS bearer state information is used to identify the EPS bearer of the UE that is determined to be in the active state and has the QoS flow information determined by the second core network entity.
  • the first condition further includes the second EPS bearer state information.
  • the UE maintains the first EPS bearer status information to ensure that the state or the number of QoS flows recorded by the UE and the network are consistent after the UE moves to the second communication system.
  • the UE moves from the first communications system to the first
  • the second communication system includes: the UE sends the first QoS flow state information to the second core network entity, where the second core network entity is a core network entity in the second communication system that is responsible for UE access and mobility management,
  • the QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state;
  • the UE receives the second message sent by the second core network entity, the second message includes the second QoS flow state information, and the second
  • the QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state determined by the second core network entity; correspondingly, the first condition further includes the second QoS flow state information.
  • the UE keeps the status of the QoS flow recorded by the UE and the
  • the UE is moved from the first communications system to The second communication system includes: the UE receives a handover instruction sent by the base station of the first communication system, where the handover instruction includes a session identifier and a QoS flow identifier; and correspondingly, the first condition further includes a session identifier and a QoS flow identifier.
  • the UE ensures that the state or the quantity of the QoS flow recorded by the UE and the network is consistent by using the received session identifier and the QoS flow identifier.
  • the method further includes: the UE receiving the fourth message, the fourth message is used to delete the first EPS bearer; the UE deleting the first EPS bearer, and The first EPS bearers corresponding first QoS flow information.
  • the UE ensures that the state or the quantity of the QoS flow recorded by the UE and the network is consistent by deleting the first QoS flow information corresponding to the first EPS bearer.
  • the first QoS flow information is included in the protocol Configuration options in PCO.
  • the UE ensures that the modification to the existing first communication system is minimized by receiving the first QoS flow information carried by the PCO.
  • the first information is included in a protocol configuration option PCO.
  • the The UE sends the carried first QoS flow information through the PCO to ensure minimal modification to the existing first communication system.
  • the second information is included in a protocol configuration option PCO.
  • the UE saves the first QoS flow information And the UE saves the first QoS flow information in the context of the first EPS bearer; or the UE saves the index information of the first QoS flow information in the context information of the first EPS bearer, where the index information includes the first QoS flow.
  • the UE determines the After the UE uses the QoS flow information in the second communication system, the method further includes: deleting, by the UE, a context of the second EPS bearer, where the second EPS bearer is an EPS bearer corresponding to the QoS flow information in the UE.
  • the UE is moved from the first communications system Up to the second communication system, comprising: the UE receiving a handover command, the handover command including index information of one or more QoS flows, the index information including a QoS flow identifier, or a combination of a QoS flow identifier and a PDU session identifier; the UE according to the handover command Moving from the first communication system to the second communication system.
  • the UE determines, according to the first condition, the QoS flow used by the UE in the second communications system
  • the information includes: the UE associates the currently used EPS bearer with the index information of the QoS flow included in the handover command; the UE deletes the EPS bearer that is not associated with the index information of the QoS flow in the currently used EPS bearer.
  • the UE associates the currently used EPS bearer with the index information of the QoS flow included in the handover command
  • the method includes: the UE obtains an EPS bearer context corresponding to the index information of the QoS flow; or the UE obtains an EPS bearer identifier corresponding to the index information of the QoS flow.
  • the first communication system is the fourth The communication system
  • the second communication system is a fifth generation communication system
  • the first core network entity is a session management function entity + a control plane PDN gateway (SMF+PGW-C).
  • a method for moving between communication systems comprising: determining, by the first core network entity, that the UE is in the first communication system
  • the first EPS carries the first quality of service QoS flow information of the second communication system; the first core network entity sends a first message, where the first message is used to establish or modify the first EPS for the UE in the first communication system Carrying, the first message includes first QoS flow information; the first core network entity stores the first QoS flow information; and when the UE moves from the first communication system to the second communication system, the first core network entity determines according to the fourth condition
  • the QoS flow information used by the UE in the second communication system, and the fourth condition includes the first QoS flow information.
  • the first core network entity determines a first QoS flow of the second communications system corresponding to the first EPS bearer of the UE in the first communications system Information
  • the method further includes: receiving, by the first core network entity, the first information sent by the UE in the process of establishing a PDN connection in the first communication system; the first core network entity determining, according to the first information, that the PDN connection is available from the first A communication system moves to the second communication system.
  • the first information includes information used to indicate that the PDN connection can be moved to the second communications system; or
  • the one information includes information indicating that the PDN is connected to the service and session continuity (SSC) mode of the corresponding PDU session in the second communication system to the specified mode.
  • SSC session continuity
  • the method before the first core network entity sends the first message, the method further includes: the first core network entity establishing a PDN connection in the first communication system In the process, the second information sent by the UE is received, where the second information is used to indicate that the PDN is connected to the SSC mode of the corresponding PDU session in the second communication system.
  • the first quality of service QoS flow information includes one or Multiple QoS rules.
  • the first EPS bearer is a default bearer;
  • the quality of service QoS flow information includes one or more of the following information: session aggregation maximum bit rate, SSC mode, PDU session identification, QoS rules.
  • the QoS rule includes one or more of the following information: QoS rule identifier, QoS flow identifier , priority, packet filter; or, the QoS rule includes one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the method further includes: the first core network entity obtains an identifier of the first QoS flow, where the identifier of the first QoS flow is that the UE The identifier of the EPS bearer is obtained by adding a specific value; or the identifier of the first QoS flow is obtained by the UE adding the identifier of the first EPS bearer to a specific field.
  • the first core network entity determines that the UE is The first QoS flow information of the second communication system corresponding to the first EPS of the first communication system includes: the first message is used to establish a first EPS bearer for the UE in the first communication system, and the first core network entity Mapping the context of the first EPS bearer to the first QoS flow information of the second communications system; or the first message is used to modify the first EPS bearer for the UE in the first communications system, where the first core network entity is modified The context of the first EPS bearer is mapped to the first QoS flow information of the second communication system.
  • the first message is used to establish a first EPS bearer for the UE in the first communications system, the method further The first core network entity allocates a QoS flow identifier to the UE, or maps the bearer identifier of the first EPS bearer to a QoS flow identifier.
  • the first message is used to modify the first EPS bearer for the UE in the first communications system
  • the method further Includes:
  • the first core network entity determines that the first EPS bearer has a corresponding first QoS flow information of the second communication system.
  • the first core network entity saves the first QoS flow information, including: the first core network The entity saves the correspondence between the bearer identifier of the first EPS bearer and the first QoS flow information; or the first core network entity saves the correspondence between the first EPS bearer context and the first QoS flow information; or, the first The core network entity stores a correspondence between the first EPS bearer context and the index information of the first QoS flow, where the index information includes a first QoS flow identifier, or a combination of the first QoS flow identifier and the PDU session identifier; or, the UE saves the first a correspondence between an EPS bearer and a first QoS flow; or, the UE saves a correspondence between the first EPS bearer and the index information of the first QoS flow, where the index information includes the first QoS flow identifier, or the first QoS
  • the method further includes: the first core network entity receiving the second information sent by the second core network entity
  • the second information includes a link bearer identifier and a bearer identifier that can be moved to the second communication system, or includes a PDN connection context, where the PDN connection uplink text includes an EPS bearer context movable to the second communication system; and the second core network entity a core network entity for the access and mobility management of the UE in the second communication system;
  • the first core network entity generates second QoS flow information of the second communication system according to the fifth condition, where the second QoS flow information includes The QoS flow information corresponding to the EPS bearer of the UE in the active state determined by the second core network entity;
  • the fifth condition includes the second information, and the corresponding relationship.
  • the method further includes: receiving, by the first core network entity, a PDN connection context sent by the second core network entity And the first QoS flow state information, the first QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state; the first core network entity generates the second QoS of the second communication system according to the fifth condition And the second QoS flow information includes the QoS flow corresponding to the EPS bearer of the UE in the active state determined by the second core network entity; the fifth condition includes the first QoS flow information, and the corresponding relationship.
  • the first QoS flow information is included in the protocol configuration option PCO .
  • the first information is included in a protocol configuration option PCO.
  • the second information is included in the protocol configuration option PCO.
  • the first communication system is a fourth generation communication system
  • the second communication system is a fifth generation communication system
  • the first core network entity is a session management function entity + a control plane PDN gateway (SMF+PGW-C).
  • a third aspect provides a method for moving between communication systems for moving a user equipment UE from a first communication system to a second communication system, the method comprising: when the UE moves from the first communication system to the second communication system
  • the second core network entity obtains the first state information and the PDN connection context, and the second core network entity is a core network entity in the second communication system that is responsible for access and mobility management of the UE;
  • the six conditions determine second information, the second information being used by the first core network entity to determine that the UE is used in the second communication system QoS flow information, the sixth condition includes the first state information and the PDN connection context;
  • the second core network entity sends the second information to the first core network entity, and receives the third information sent by the first core network entity;
  • the entity generates second state information according to the seventh condition, the seventh condition includes third information;
  • the second core network entity sends a second message to the UE, the second message includes second state information, and the second state information is used by the UE
  • the first state information is the first EPS bearer state information
  • the second state information is the second EPS bearer state information
  • the first EPS bearer state The information is used to identify the EPS bearer of the UE that is in the active state and has the QoS flow information
  • the second EPS bearer state information is used to identify the EPS of the UE that is determined to be in the active state and has the QoS flow information corresponding to the second core network entity. Hosted.
  • the first state information is the first QoS flow state information
  • the second state information is the second QoS flow state information
  • the first QoS flow state is The information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state
  • the second QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state determined by the second core network entity.
  • the third information includes the bearer identifier of the EPS bearer of the UE in the active state determined by the first core network entity
  • the third information includes second QoS flow state information determined by the first core network entity.
  • the second core network entity determines, according to the first state information and the PDN connection context, the second information, including: The second core network entity determines the second information according to the intersection of the first EPS bearer state information and the EPS bearer existing in the PDN connection context; wherein the second information includes a link bearer identifier and a bearer identifier that can be moved to the second communication system, or The PDN connection context is included, and the PDN connection uplink contains an EPS bearer context that can be moved to the second communication system.
  • the second core network entity determines, according to the first state information and the PDN connection context, the second information, including: The second core network entity maps the PDN connection context to the QoS flow information of the second communication system, and determines the second information according to the intersection of the mapped QoS flow information and the QoS flow in the state information of the first QoS flow, where the second information includes Two QoS flow state information.
  • the first communication system is a fourth generation communication system
  • the second communication system is a fifth generation communication system
  • the first core network entity is a session management function entity + a control plane PDN gateway (SMF+PGW-C).
  • a method for moving between communication systems for moving a user equipment UE from a first communication system to a second communication system, the method comprising: establishing, by the UE, a first EPS bearer in the first communication system; The UE moves from the first communication system to the second communication system; the UE receives the first message, the first message includes first quality of service QoS flow information of the second communication system corresponding to the first EPS bearer; the UE is according to the first The condition determines QoS flow information used by the UE in the second communication system, and the first condition includes the first QoS flow information.
  • the first quality of service QoS flow includes one or more of the following information: session aggregation maximum bit rate, SSC mode, PDU session identification, QoS rules.
  • the QoS rule includes one or more of the following information: QoS rule identifier, QoS flow identifier, priority, Packet filter; or, the QoS rule includes one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the method further includes: the UE obtaining an identifier of the first QoS flow; the identifier of the first QoS flow is an identifier of the first EPS bearer by the UE The identifier obtained after the specific value is added, or the identifier of the first QoS flow is obtained by the UE adding the identifier of the first EPS bearer to a specific field.
  • the UE is moved from the first communications system to the second communications system,
  • the method includes: the UE sends the first EPS bearer status information to the second core network entity, where the first EPS bearer status information is used to identify the EPS bearer of the UE in an active state, and the second core network entity is used in the second communication system
  • the core network entity responsible for UE access and mobility management.
  • the UE is moved from the first communications system to the second communications system,
  • the method includes: the UE sends the first QoS flow state information to the second core network entity, where the second core network entity is a core network entity in the second communication system, which is responsible for access and mobility management of the UE, and the first QoS flow state
  • the information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state.
  • the first message is a registration accept message, and the N1 session management information parameter of the registration accept message includes the first QoS flow information; or, the first message is The PDU session modification message includes the first QoS flow information in the N1 session management information parameter of the PDU session modification message.
  • the first message is a handover command message
  • the handover command message includes the first QoS flow information
  • the target-to-source transparent container of the handover command message includes the first QoS flow information.
  • the access layer of the UE obtains the first QoS flow information from the target to the source transparent container, and sends the information The non-access stratum of the UE.
  • the first message further includes the first QoS flow Information corresponding to the first EPS bearer.
  • the information of the first EPS bearer includes a bearer identifier of the first EPS bearer.
  • the UE determines, according to the first condition, that the UE is used in the second communications system After the QoS flow information, the method further includes: deleting, by the UE, a context of the second EPS bearer, where the second EPS bearer is the UE The EPS bearer not included in the first message; or the second EPS bearer is an EPS bearer corresponding to the UE without QoS flow information.
  • the first communication system is the fourth generation The communication system
  • the second communication system is a fifth generation communication system
  • the first core network entity is a session management function entity + a control plane PDN gateway (SMF+PGW-C).
  • a fifth aspect provides a method for moving between communication systems for moving a user equipment UE from a first communication system to a second communication system, the method comprising: when the UE moves from the first communication system to the second communication system
  • the first core network entity receives the first information sent by the second core network entity, where the first information includes a PDN connection context, and the PDN connection uplink text includes an EPS bearer context that can be moved to the second communication system
  • the second core network entity is a core network entity for the access and mobility management of the UE in the second communication system
  • the first core network entity determines QoS flow information used by the UE in the second communication system according to the first condition, where the first condition includes a PDN connection Context.
  • the method includes: when the UE moves from the first communication system to the second communication system, the first core network entity receives the second information sent by the second core network entity, and the second information includes moving to the second communication system
  • the second core network entity is a core network entity in the second communication system for the access and mobility management of the UE
  • the first core network entity is determined according to the first condition
  • the QoS flow information used by the UE in the second communication system the first condition including PDN connection and QoS flow status information.
  • the PDN connection includes all PDN connections of the UE in the first communication system, and the method further includes: deleting, by the first core network entity, the QoS flow in the QoS flow corresponding to the EPS bearer of the PDN connection QoS flow.
  • the QoS flow information includes one or more of the following information: a session aggregation maximum bit rate, an SSC mode, a PDU session identifier, and a QoS rule.
  • the QoS rule includes one or more of the following information: QoS rule identifier, QoS flow identifier, priority, Packet filter; or, the QoS rule includes one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the first communication system is a fourth generation communication system
  • the second communication is The system is a fifth generation communication system
  • the first core network entity is a session management function entity + a control plane PDN gateway (SMF+PGW-C).
  • a method for moving between communication systems for moving a user equipment UE from a first communication system to a second communication system, the method comprising: when the UE moves from the first communication system to the second communication system And the second core network entity receives the first quality of service QoS flow information of the second communication system corresponding to the first EPS bearer established by the UE in the first communication system; the second core network entity sends the first message to the UE The first message includes the first QoS flow information.
  • the first QoS flow information includes one or more of the following information: a session aggregation maximum bit rate, an SSC mode, a PDU session identifier, and a QoS rule.
  • the QoS rule includes one or more of the following information: QoS rule identifier, QoS flow identifier, priority, Packet filter; or, the QoS rule includes one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the method further includes: acquiring, by the second core network entity, the first EPS Carrying the status information and the PDN connection context, the first EPS bearer status information is used to identify the EPS bearer of the UE in an active state; the second core network entity determines the third information according to the first EPS bearer status information and the PDN connection context, The three information includes an EPS bearer that can be moved to the PDN connection and the PDN connection of the second communication system, or a PDN connection context that can be moved to the second communication system.
  • the method further includes: acquiring, by the second core network entity, the first QoS Flow state information and a PDN connection context, where the QoS flow state information is used to identify a QoS flow corresponding to the EPS bearer of the UE in an active state; the second core network entity sends the first QoS flow state information to the first core network entity and The PDN connects the context and receives the second QoS flow information sent by the first core network entity, where the second QoS flow information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state determined by the first core entity.
  • the first message is a registration accept message, and the N1 session management information parameter of the registration accept message includes the first QoS flow information; or, the first message is The PDU session modification message includes the first QoS flow information in the N1 session management information parameter of the PDU session modification message.
  • the first message is a handover command message
  • the handover command message includes the first QoS flow information
  • the target-to-source transparent container of the handover command message includes the first QoS flow information.
  • the first message further includes the first QoS flow Information corresponding to the first EPS bearer.
  • the information of the first EPS bearer includes a bearer identifier of the first EPS bearer.
  • the first communication system is a fourth generation communication system
  • the second communication system is a fifth generation communication system.
  • the seventh aspect provides a user equipment UE, configured to move a UE from a first communications system to a second communications system, where the UE includes: a receiving unit, configured to receive a first message, where the first message is used in the first communications Establishing or modifying the first EPS bearer for the UE, the first message includes the first quality of service QoS flow information of the second communication system corresponding to the first EPS bearer, and the saving unit is configured to save the first QoS flow information; a mobile unit, configured to move from the first communication system to the second communication system; and a determining unit, configured to determine, according to the first condition, QoS flow information used by the UE in the second communication system, where the first condition includes the first QoS flow information .
  • the UE before the UE receives the first message, the UE further includes: a sending unit, configured to establish a PDN connection in the first communications system, Transmitting first information to the first core network entity, the first information being used by the first core network entity to determine that the PDN connection is moveable from the first communication system to the second communication system.
  • a sending unit configured to establish a PDN connection in the first communications system, Transmitting first information to the first core network entity, the first information being used by the first core network entity to determine that the PDN connection is moveable from the first communication system to the second communication system.
  • the first information includes information used to indicate that the PDN connection can be moved to the second communications system; or
  • the one information includes information indicating that the PDN is connected to the service and session continuity (SSC) mode of the corresponding PDU session in the second communication system to the specified mode.
  • SSC session continuity
  • the UE further includes: a sending unit, configured to send, to the first core network entity, a process of establishing a PDN connection in the first communications system
  • the second information is used to indicate that the PDN is connected to the SSC mode of the corresponding PDU session in the second communication system.
  • the first quality of service QoS flow information includes one or more QoS rules .
  • the first EPS bearer is a default bearer; the first quality of service QoS flow
  • the information includes one or more of the following information: session aggregation maximum bit rate, SSC mode, PDU session identification, QoS rules.
  • the QoS rule includes one or more of the following information: QoS rule Identification, QoS flow identification, priority, packet filter; or, the QoS rule includes one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the determining unit is further configured to obtain an identifier of the first QoS flow, where the identifier of the first QoS flow is that the UE adds the identifier of the first EPS bearer. Obtained after the specific value; or, the identifier of the first QoS flow is obtained by the UE adding the identifier of the first EPS bearer to a specific field.
  • the saving unit is specifically configured to: save the first Corresponding relationship between the bearer identifier of the EPS bearer and the first QoS flow information; or storing a correspondence between the first EPS bearer context and the first QoS flow information; or saving the first EPS bearer context and the first QoS flow Correspondence of index information including a first QoS flow identifier, or a combination of a first QoS flow identifier and a PDU session identifier.
  • the sending unit is further used to the second core
  • the network entity sends the first EPS bearer status information
  • the second core network entity is a core network entity in the second communication system that is responsible for the access and mobility management of the UE, and the first EPS bearer status information is used to identify that the active state is The EPS bearer of the UE corresponding to the QoS flow information
  • the receiving unit is further configured to receive the second message sent by the second core network entity, where the second message includes the second EPS bearer status information, and the second EPS bearer status information is used.
  • the sending unit is further used to the second core
  • the network entity sends the first QoS flow state information
  • the second core network entity is a core network entity in the second communication system, which is responsible for access and mobility management of the UE, and the first QoS flow state information is used to identify the active state.
  • the receiving unit is further configured to receive a second message sent by the second core network entity, where the second message includes second QoS flow state information, and the second QoS flow state information is used to identify The QoS flow corresponding to the EPS bearer of the UE in the active state determined by the second core network entity; correspondingly, the first condition further includes the second QoS flow state information.
  • the receiving unit is further configured to receive the first a handover instruction sent by the base station of the communication system, where the handover instruction includes a session identifier and a QoS flow identifier; correspondingly, the first condition further includes a session identifier and a QoS flow identifier.
  • the receiving unit is further configured to receive the first The fourth message is used to delete the first EPS bearer.
  • the UE further includes: a deleting unit, configured to delete the first EPS bearer and the first QoS flow information corresponding to the first EPS bearer.
  • the first QoS flow information is included in the protocol Configuration options in PCO.
  • the first information is included in a protocol configuration option PCO.
  • the second information is included in the protocol configuration option PCO.
  • the saving unit is specifically configured to: Saving the first QoS flow information in the context of the first EPS bearer; or storing the index information of the first QoS flow information in the context information of the first EPS bearer, where the index information includes the first QoS flow identifier, or the first QoS flow identifier A combination of a PDU session identifier.
  • the UE further includes: a deleting unit, For deleting the context of the second EPS bearer, the second EPS bearer is an EPS bearer corresponding to the QoS flow information in the UE.
  • the receiving unit is further configured to: receive a handover command, the handover command includes index information of one or more QoS flows, and the index information includes a QoS flow identifier, or a combination of a QoS flow identifier and a PDU session identifier; and correspondingly, the mobile unit is specifically configured to: according to the handover command from the first The communication system moves to the second communication system.
  • the determining unit is specifically configured to: use the currently used EPS bearer and the QoS flow included in the handover command The index information is associated; the EPS bearer in the currently used EPS bearer that is not associated with the index information of the QoS flow is deleted.
  • the determining unit is further configured to: obtain an EPS bearer context corresponding to the index information of the QoS flow Or, obtain an EPS bearer identifier corresponding to the index information of the QoS flow.
  • the first communications system is the fourth The communication system
  • the second communication system is a fifth generation communication system
  • the first core network entity is a session management function entity + a control plane PDN gateway (SMF+PGW-C).
  • the eighth aspect provides a core network entity, configured to move a user equipment UE from a first communications system to a second communications system, where the core network entity includes: a determining unit, configured to determine, in the first communications system with the UE The first EPS carries the first quality of service QoS flow information of the second communication system, and the sending unit is configured to send a first message, where the first message is used to establish or modify the first EPS for the UE in the first communications system.
  • the first message includes first QoS flow information
  • the saving unit is configured to save the first QoS flow information
  • the determining unit is further configured to: when the UE moves from the first communication system to the second communication system, according to the fourth condition
  • the QoS flow information used by the UE in the second communication system is determined, and the fourth condition includes the first QoS flow information.
  • the core network entity further includes: a receiving unit, configured to receive, by the UE, a process of establishing a PDN connection in the first communications system And a determining unit, configured to determine, according to the first information, that the PDN connection is movable from the first communication system to the second communication system.
  • the first information includes information used to indicate that the PDN connection can be moved to the second communications system; or
  • the one information includes information indicating that the PDN is connected to the service and session continuity (SSC) mode of the corresponding PDU session in the second communication system to the specified mode.
  • SSC session continuity
  • the core network entity further includes: a receiving unit, configured to receive, by the UE, a process of establishing a PDN connection in the first communications system
  • the second information is used to indicate that the PDN is connected to the SSC mode of the corresponding PDU session in the second communication system.
  • the first quality of service QoS flow information includes one or Multiple QoS rules.
  • the first EPS bearer is a default bearer;
  • the quality of service QoS flow information includes one or more of the following information: session aggregation maximum bit rate, SSC mode, PDU session identification, QoS rules.
  • the QoS rule includes one or more of the following information: QoS rule identifier, QoS flow identifier , priority, packet filter; or, the QoS rule includes one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the determining unit is further configured to: Obtaining an identifier of the first QoS flow, where the identifier of the first QoS flow is obtained by adding the identifier of the first EPS bearer to a specific value; or the identifier of the first QoS flow is adding the identifier of the first EPS bearer to the specific field After getting it.
  • the first message is used in the first communications system Establishing a first EPS bearer for the UE, where the determining unit is configured to: map the context of the first EPS bearer to the first QoS flow information of the second communications system; or the first message is used in the first communications system.
  • the first EPS bearer is modified for the UE, and the determining unit is configured to: map the modified first EPS bearer context to the first QoS flow information of the second communications system.
  • the first message is used to establish a first EPS bearer, the determining unit, for the UE in the first communications system, And is further configured to allocate a QoS flow identifier to the UE; or map the bearer identifier of the first EPS bearer to a QoS flow identifier.
  • the first message is used to modify the first EPS bearer, the determining unit, for the UE in the first communications system, It is further configured to determine that the first EPS bearer has a corresponding first QoS flow information of the second communication system.
  • the saving unit is configured to: save the bearer identifier of the first EPS bearer and the first Corresponding relationship between the QoS flow information; or storing a correspondence between the first EPS bearer context and the first QoS flow information; or storing a correspondence between the first EPS bearer context and the index information of the first QoS flow,
  • the index information includes a first QoS flow identifier, or a combination of the first QoS flow identifier and the PDU session identifier; or the UE saves a correspondence between the first EPS bearer and the first QoS flow; or the UE saves the first EPS Carrying a correspondence with the index information of the first QoS flow, the index information includes a first QoS flow identifier, or a combination of the first QoS flow identifier and the PDU session identifier.
  • the receiving unit is further configured to receive the second information sent by the second core network entity, where
  • the second information includes a link bearer identifier and a bearer identifier that can be moved to the second communication system, or includes a PDN connection context, where the PDN connection uplink text includes an EPS bearer context movable to the second communication system; and the second core network entity is the second communication a core network entity for the access and mobility management of the UE in the system;
  • the determining unit is further configured to generate second QoS flow information of the second communication system according to the fifth condition, where the second QoS flow information includes the second core network
  • the receiving unit is further configured to receive the PDN connection context and the first QoS sent by the second core network entity
  • the flow state information, the first QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state
  • the determining unit is further configured to generate the second QoS flow information of the second communication system according to the fifth condition,
  • the second QoS flow information includes a QoS flow corresponding to the EPS bearer of the UE in the activated state determined by the second core network entity
  • the fifth condition includes the first QoS flow information, and the corresponding relationship.
  • the first QoS flow information is included in the protocol configuration option PCO .
  • the first information is included in a protocol configuration option PCO.
  • the second information is included in the protocol configuration option PCO.
  • the first communication system is a fourth generation communication system
  • the second communication system is a fifth generation communication system
  • the first core network entity is a session management function entity + a control plane PDN gateway (SMF+PGW-C).
  • a core network entity for moving a user equipment UE from a first communication system to a second communication system, the core network entity comprising: an obtaining unit, configured to move from the first communication system to the UE And acquiring, by the second communication system, the first state information and the PDN connection context; the determining unit, configured to determine the second information according to the sixth condition, where the second information is used by the first core network entity to determine that the UE is used in the second communication system
  • the QoS flow information, the sixth condition includes the first state information and the PDN connection context;
  • the sending unit is configured to send the second information;
  • the acquiring unit is further configured to receive the third information sent by the first core network entity;
  • the second state information is generated according to the seventh condition, the seventh condition includes the third information, and the sending unit is further configured to send the second message to the UE, where the second message includes the second state information, where the second state information is used by the second state information.
  • the UE determines the QoS flow information used in the second communication system.
  • the first state information is the first EPS bearer state information
  • the second state information is the second EPS bearer state information
  • the first EPS bearer state The information is used to identify the EPS bearer of the UE that is in the active state and has the QoS flow information
  • the second EPS bearer state information is used to identify the EPS of the UE that is determined to be in the active state and has the QoS flow information corresponding to the second core network entity. Hosted.
  • the first state information is first QoS flow state information
  • the second state information is second QoS flow state information
  • the first QoS flow state The information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state
  • the second QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state determined by the second core network entity.
  • the third information includes the bearer identifier of the EPS bearer of the UE in the active state determined by the first core network entity
  • the third information includes second QoS flow state information determined by the first core network entity.
  • the determining unit is configured to: connect the EPS bearer existing in the PDN connection context according to the first EPS bearer state information And the second information is determined; wherein the second information includes a link bearer identifier and a bearer identifier that can be moved to the second communication system, or includes a PDN connection context, where the PDN connection uplink text includes an EPS bearer that can be moved to the second communication system Context.
  • the determining unit is specifically configured to: map the PDN connection context to the QoS flow information of the second communications system, according to The intersection of the mapped QoS flow information and the QoS flow in the state information of the first QoS flow determines the second information, and the second information includes the second QoS flow state information.
  • the first communication system is a fourth generation communication system
  • the second communication system is a fifth generation communication system
  • the first core network entity is Session Management Function Entity + Control Plane PDN Gateway (SMF+PGW-C).
  • a user equipment UE configured to move a UE from a first communication system to a second communication system, where the UE includes: an establishing unit, configured to establish a first EPS bearer in the first communication system; For moving from the first communication system to the second communication system; the receiving unit is configured to receive the first message, where the first message includes the first quality of service QoS flow information of the second communication system corresponding to the first EPS bearer; And a determining unit, configured to determine, according to the first condition, QoS flow information used by the UE in the second communication system, where the first condition includes the first QoS flow information.
  • the first quality of service QoS flow information includes one or more of the following information: session aggregation maximum bit rate, SSC mode, PDU session identifier, QoS rule.
  • the QoS rule includes one or more of the following information: QoS rule identifier, QoS flow identifier, priority, Packet filter; or, the QoS rule includes one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the determining unit is further configured to obtain an identifier of the first QoS flow, where the identifier of the first QoS flow is that the UE adds the identifier of the first EPS bearer.
  • the identifier obtained after the specific value or the identifier of the first QoS flow is obtained by the UE adding the identifier of the first EPS bearer to a specific field.
  • the UE further includes: a sending unit, configured to send to the second core
  • the network entity sends the first EPS bearer status information, where the first EPS bearer status information is used to identify the EPS bearer of the UE in the active state, and the second core network entity is used to be responsible for the UE access and mobility in the second communication system.
  • the core network entity managed.
  • the UE further includes: a sending unit, configured to send to the second core
  • the network entity sends the first QoS flow state information
  • the second core network entity is a core network entity in the second communication system, which is responsible for access and mobility management of the UE, and the first QoS flow state information is used to identify the active state.
  • the first message is a registration accept message, and the N1 session management information parameter of the registration accept message includes the first QoS flow information; or, the first message is The PDU session modification message includes the first QoS flow information in the N1 session management information parameter of the PDU session modification message.
  • the first message is a handover command message
  • the handover command message includes the first QoS flow information
  • the target-to-source transparent container of the handover command message includes the first QoS flow information.
  • the ninth possible implementation manner of the tenth aspect The access layer of the UE obtains the first QoS flow information from the target to the source transparent container, and sends the information to the non-access stratum of the UE.
  • the first message further includes the first QoS flow Information corresponding to the first EPS bearer.
  • the information of the first EPS bearer includes a bearer identifier of the first EPS bearer.
  • the UE further includes: a deleting unit, configured to delete a context of the second EPS bearer
  • the second EPS bearer is an EPS bearer of the UE that is not included in the first message; or the second EPS bearer is an EPS bearer corresponding to the UE that has no QoS flow information.
  • the first communication system is the fourth generation The communication system
  • the second communication system is a fifth generation communication system
  • the first core network entity is a session management function entity + a control plane PDN gateway (SMF+PGW-C).
  • a core network entity for moving a UE from a first communications system to a second communications system, the core network entity comprising: a receiving unit, configured to move from the first communications system to the UE
  • the second communication system receives the first information sent by the second core network entity, where the first information includes a PDN connection context, the PDN connection uplink message includes an EPS bearer context that can be moved to the second communication system, and the second core network entity is a second a core network entity for the access and mobility management of the UE in the communication system; determining unit, configured to determine QoS flow information used by the UE in the second communication system according to the first condition, where the first condition includes a PDN connection context .
  • the core network entity includes: a receiving unit, configured to receive second information sent by the second core network entity when the UE moves from the first communications system to the second communications system, where the second information includes moving to the second a PDN connection in the communication system and QoS flow state information corresponding to the PDN; the second core network entity is a core network entity in the second communication system for being responsible for access and mobility management of the UE; and a determining unit, configured to The condition determines QoS flow information used by the UE in the second communication system, the first condition including PDN connection and QoS flow status information.
  • the PDN connection includes all PDN connections of the UE in the first communication system
  • the core network entity further includes: a deleting unit, configured to delete the QoS flow state in the QoS flow corresponding to the EPS bearer of the PDN connection QoS flow in the information.
  • the QoS flow information includes one or more of the following information: a session aggregation maximum bit rate, an SSC mode, a PDU session identifier, and a QoS rule. .
  • the QoS rule includes one or more of the following information: QoS rule identifier, QoS flow identifier, priority Level, packet filter; or, QoS rules include one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the first communication system is a fourth generation communication system, Second communication system
  • the fifth generation communication system; and/or, the first core network entity is a session management function entity + control plane PDN gateway (SMF+PGW-C).
  • a core network entity for moving a user equipment UE from a first communication system to a second communication system, where the core network entity includes: an acquiring unit, where the UE moves from the first communication system to the first a second communication system, configured to receive first quality of service QoS flow information of a second communication system corresponding to the first EPS bearer established by the UE in the first communication system; and a sending unit, configured to send the first to the UE The message, the first message contains the first QoS flow information.
  • the first QoS flow information includes one or more of the following information: a session aggregation maximum bit rate, an SSC mode, a PDU session identifier, and a QoS rule.
  • the QoS rule includes one or more of the following information: QoS rule identifier, QoS flow identifier, priority Level, packet filter; or, QoS rules include one or more of the following information: QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the acquiring unit is further configured to acquire the first EPS bearer The status information and the PDN connection context, the first EPS bearer status information is used to identify the EPS bearer of the UE in an active state;
  • the core network entity further includes: a determining unit, configured to use the first EPS bearer status information and the PDN connection context, A third information is determined, the third information comprising an EPS bearer moveable to a PDN connection and a PDN connection of the second communication system, or a PDN connection context moveable to the second communication system.
  • the acquiring unit is further configured to acquire the first QoS flow
  • the QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state
  • the sending unit is further configured to send the first QoS flow state information to the first core network entity and a PDN connection context
  • the acquiring unit is further configured to receive the second QoS flow information sent by the first core network entity, where the second QoS flow information is used to identify the EPS bearer of the active state of the UE determined by the first core entity.
  • QoS flow is further configured to acquire the first QoS flow.
  • the first message is a registration accept message, and the N1 session management information parameter of the registration accept message includes the first QoS flow information; or, the first The message is a PDU session modification message, and the first QoS flow information is included in the N1 session management information parameter of the PDU session modification message.
  • the first message is a handover command message
  • the handover command message includes the first QoS flow information
  • the target-to-source transparent container of the handover command message includes the first QoS flow information.
  • the first message further includes The information of the first EPS bearer corresponding to the QoS flow information.
  • the ninth possible implementation of the twelfth aspect In the manner, the information of the first EPS bearer includes the bearer identifier of the first EPS bearer.
  • the first communication system is the fourth On behalf of the communication system, the second communication system is a fifth generation communication system.
  • a user equipment includes a memory, a processor, a communication interface, and a bus.
  • the memory stores code and data
  • the processor, the memory, and the communication interface are connected by a bus, and the processor runs in the memory.
  • the code enables the user equipment to perform the inter-communication system movement method provided by the above first aspect or any one of the possible implementation manners of the first aspect, or to perform any of the above-mentioned fourth aspect or any possible implementation manner of the fourth aspect The method of moving between communication systems.
  • a core network device in a fourteenth aspect, includes a memory, a processor, a communication interface, and a bus.
  • the memory stores code and data, and the processor, the memory, and the communication interface are connected by a bus, and the processor runs in the memory.
  • the code for causing the core network device to perform the inter-communication system mobility method provided by any one of the foregoing second aspect or the second aspect, or any one of the foregoing fifth or fifth aspect A method of moving between communication systems provided.
  • a core network device includes a memory, a processor, a communication interface, and a bus.
  • the memory stores code and data
  • the processor, the memory, and the communication interface are connected by a bus, and the processor runs in the memory.
  • the code for causing the core network device to perform the inter-communication system mobility method provided by any one of the foregoing third aspect or the third aspect, or any one of the foregoing sixth or sixth aspect A method of moving between communication systems provided.
  • a system in a sixteenth aspect, includes a user equipment UE, a first core network entity, and a second core network entity, where the user equipment is any possible implementation manner of the seventh aspect or the seventh aspect, Or any one of the possible implementations of the tenth or tenth aspect, or the user equipment provided by the thirteenth aspect; and/or the first core network entity is any one of the eighth aspect or the eighth aspect Implementation, or any one of the possible implementations of the eleventh or eleventh aspect, or the core network device provided by the fourteenth aspect; and/or the second core network entity is the ninth aspect or the Any of the possible implementations of the nine aspects, or any one of the possible implementations of the twelfth or twelfth aspect, or the core network device provided by the fifteenth aspect.
  • Yet another aspect of the present application provides a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform the methods described in the above aspects.
  • Yet another aspect of the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the various aspects above.
  • FIG. 1 is a system architecture diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a first method for moving between communication systems according to an embodiment of the present application
  • FIG. 4 is a flowchart of a method for moving between two communication systems according to an embodiment of the present application
  • 4A is a flowchart of a third method for moving between communication systems according to an embodiment of the present application.
  • FIG. 5 is a flowchart of moving a UE to a second communication system according to an embodiment of the present disclosure
  • FIG. 6 is a flowchart of another UE moving to a second communication system according to an embodiment of the present application.
  • FIG. 7 is a flowchart of still another UE moving to a second communication system according to an embodiment of the present application.
  • FIG. 8 is a flowchart of a fourth method for moving between communication systems according to an embodiment of the present application.
  • FIG. 9 is a flowchart of a fifth method for moving between communication systems according to an embodiment of the present application.
  • FIG. 10 is a flowchart of moving a UE to a second communication system according to an embodiment of the present application.
  • FIG. 11 is a flowchart of another UE moving to a second communication system according to an embodiment of the present application.
  • FIG. 12 is a flowchart of still another UE moving to a second communication system according to an embodiment of the present disclosure
  • FIG. 13 is a flowchart of a sixth method for moving between communication systems according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of a first core network device according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of another first core network device according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic structural diagram of a second core network device according to an embodiment of the present disclosure.
  • FIG. 19 is a schematic structural diagram of another second core network device according to an embodiment of the present disclosure.
  • FIG. 20 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 21 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 22 is a schematic structural diagram of a first core network device according to an embodiment of the present disclosure.
  • FIG. 23 is a schematic structural diagram of another first core network device according to an embodiment of the present disclosure.
  • FIG. 24 is a schematic structural diagram of a second core network device according to an embodiment of the present disclosure.
  • FIG. 25 is a schematic structural diagram of another second core network device according to an embodiment of the present disclosure.
  • PDN connection Connection or Connectivity: a combination of a set of EPS bearers established on the UE within the first communication system (eg, within a 4G network), the EPS bearers having the same IP address and Access Point Name (APN).
  • PDN Protocol Data Network
  • APN Access Point Name
  • PDN connection context includes the IP address used by the PDN connection, APN, PGW address, and context information for each EPS bearer.
  • the EPS bearer refers to a data transmission channel within the first communication system (for example, within a 4G network).
  • An EPS bearer in an active state refers to a data transmission channel that has been established in the first communication system and has a certain QoS.
  • the EPS bearer in the inactive state refers to the data transmission channel that has been deleted in the first communication system.
  • each EPS bearer has an EPS bearer identifier EBI, and the EPS bearer state information is used to identify whether a bearer corresponding to each EBI exists.
  • EBIs shown in Table 1 are 0 to 15, respectively, and the corresponding values are as shown in Table 1.
  • the values of EBI 5 and 7 in Table 1 below are 1, indicating that there is a corresponding EPS bearer.
  • the other EBIs have a value of 0, indicating that there is no corresponding bearer.
  • EPS bearer context including QoS information of the EPS bearer, EPS bearer identifier, TFT and other information.
  • PDU Session A combination of a set of QoS flow flows established on a UE within a 5G network. These QoS flows have the same IP address and Data Network Name (DNN). At the UE and network side, a PDU session is identified by an IP address and a DNN.
  • DNN Data Network Name
  • PDU Session Context Includes the IP address, APN, SMF, and UPF address used by the PDU session, as well as context information for each QoS flow.
  • SSC Service and Session Continuity
  • a PDU session of each second communication system (eg, 5G) has a continuous description.
  • SSC mode 1 indicates that the PDU session can remain consistent during the mobile process;
  • SSC mode 2 indicates that the UE can release the existing PDU session and establish a new PDU session instead of the released PDU session during the mobile process.
  • SSC mode 3 indicating that the UE can continue to maintain the existing PDU session for a period of time while moving, and establish a new PDU session to replace the original PDU session, and release the existing PDU session after the existing PDU session time expires. , only keep new PDU sessions.
  • the QoS flow information includes: QoS information of the QoS flow, QoS Flow Identity (QFI), and a combination of one or more pieces of information of the QoS flow template.
  • the QoS information may further include a 5G QoS indicator (5QI) corresponding to the QoS, an Allocation and Retention Priority (ARP), and a guaranteed bit rate (Guaranteed).
  • 5QI 5G QoS indicator
  • ARP Allocation and Retention Priority
  • Guaranteed Guarantee bit rate
  • GFBR Flow Bit Rate
  • MFBR Maximum Flow Bit Rate
  • the QoS flow information is used to describe the QoS flow, including but not limited to the information described above.
  • the QoS flow information may also be referred to as a QoS parameter, and the QoS flow information in the embodiment of the present application may be replaced with a QoS parameter.
  • PCO Protocol Configuration Option
  • the difference between the extended PCO and the PCO Due to the limited size of the PCO, in order to carry more data, the PCO is extended, that is, the extended PCO.
  • the system architecture of the communication system to which the embodiment of the present application is applied is as shown in FIG. 1.
  • the system architecture includes a first communication system and a second communication system.
  • the first communication system is the fourth generation (Forth Generation, 4G).
  • the communication system and the second communication system are described as a fifth generation (5G) communication system.
  • the communication system includes a UE, an Evolved UMTS Terrestrial Radio Access Network (E-UERAN), a mobility management entity MME, a Serving Gateway (SGW), and a user plane function.
  • E-UERAN Evolved UMTS Terrestrial Radio Access Network
  • MME mobility management entity
  • SGW Serving Gateway
  • PCF Policy and Charging Rules Function
  • PCRF Policy and Charging Rules Function
  • HSS Home Subscriber Server
  • UDM Unified Data Management
  • UDM Unified Data Management
  • AMF Access and Mobility Management Function
  • 5G-RAN 5G Radio Access Network
  • the E-UTRAN is a 4G-side base station, and the UE can access the 4G communication system through the base station;
  • the 5G-RAN is a 5G-side base station, and the UE can access the 5G communication system through the base station, and the 5G-RAN can be performed on the E-UTRAN.
  • the UE may access the base station of the 5G communication system through the base station, or the 5G-RAN may be a base station dedicated to the UE accessing the 5G communication system.
  • the core network entity in Figure 1 may be referred to as a core network device.
  • the MME is a 4G core network device, which is responsible for authentication, authorization, mobility management, and session management of the UE.
  • the associated EPS bearer ID (LBI) of the UE in the 4G PDN connection is allocated by the entity.
  • the SGW is a 4G core network device (core network gateway), which is responsible for data forwarding, downlink data storage, and the like.
  • UPF+PGW-U is the core network equipment shared by 4G and 5G, that is, the core network equipment of 4G and 5G, including the functions of UPF and PGW-U.
  • the UPF is a user plane device of the 5G core network, and provides a user plane service for the PDU session of the UE; it is an interface gateway between the operator network and the external network.
  • the PGW-U is a user plane device of the 4G core network, and provides user plane services for the PDN connection of the UE; it is an interface gateway between the carrier network and the external network.
  • UPF+PGW-U can also be called PGW-U+UPF, as long as it is a device that includes UPF and PGW-U functions.
  • SMF+PGW-C is the core network equipment shared by 4G and 5G, that is, the core network equipment of 4G and 5G, including the functions of SMF and PGW-C.
  • the SMF is a control plane device of the 5G core network, and provides a control plane service for the PDU session of the UE; manages the 5G PDU session, manages the 5G QoS, and is responsible for allocating an IP address for the UE, and is responsible for selecting the UPF for the UE.
  • the PGW-C is a control plane device of the 4G core network, and provides user plane services for the PDN connection of the UE. It is responsible for allocating an IP address for the UE and establishing an EPS bearer for the UE.
  • SMF+PGW-C can also be called PGW-C+SMF, as long as it is a device that includes SMF and PGW-C functions.
  • PCF+PCRF is a core network device shared by 4G and 5G, that is, 4G and 5G core network devices, including PCF and PCRF.
  • the PCRF is a 4G core network device, and is responsible for generating a policy for a user to establish a data bearer.
  • PCF is a 5G core network device, similar to the PCRF function.
  • PCF+PCRF may also be referred to as PCRF+PCF, as long as it is a device containing PCF and PCRF functions.
  • UDM+HSS is a core network device shared by 4G and 5G, that is, 4G and 5G core network devices, including HSS and UDM.
  • the HSS is a 4G core network device and is used to store subscription data of the user.
  • the SDM is a 5G core network device and is used to store user subscription data.
  • UDM+HSS can also be called HSS+UDM, as long as it is a device that includes both HSS and UDM functions.
  • AMF is a 5G core network device, which is used to authenticate and authorize users and manage user mobility.
  • the Nx interface is an interface between the MME and the AMF, and the interface is currently optional.
  • the UE context can be transmitted through the Nx interface.
  • the PDN connection established by the UE in the 4G network can be seamlessly transferred to the 5G network, the MME selects 5G and 4G for the UE.
  • the network element SMF+PGW-C, seamless transfer means that the IP address is unchanged and the PGW-C is unchanged.
  • the UE may be a mobile phone, a tablet computer, a notebook computer, a netbook, and a portable electronic device.
  • the UE may include components such as a memory, a processor, a radio frequency (RF) circuit, and a power source.
  • the memory can For storing software programs and modules, the processor executes various functional applications and data processing of the UE by running software programs and modules stored in the memory.
  • the memory may mainly include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function, and the like; the storage data area may store data created according to usage of the UE, and the like.
  • the memory may include a high speed random access memory, and may also include a nonvolatile memory or the like.
  • the processor is the control center of the UE, and connects various parts of the entire UE by using various interfaces and lines, and executes each of the UEs by running or executing software programs and/or modules stored in the memory, and calling data stored in the memory. Functions and processing data to monitor the UE as a whole.
  • the processor may include one or more processing units; preferably, the processor may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, etc., and modulates The demodulation processor primarily handles wireless communications.
  • the RF circuit can be used to send and receive information or receive and transmit signals during a call.
  • RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, an LNA (low noise amplifier), a duplexer, and the like.
  • the UE also includes a power source for powering various components.
  • the power source can be logically coupled to the processor through the power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the UE may further include an input unit, a display unit, a sensor module, an audio module, a WiFi module, a Bluetooth module, and the like, and details are not described herein again.
  • FIG. 3 is a flowchart of a method for moving between communication systems according to an embodiment of the present disclosure. Referring to FIG. 3, the method is applied to the foregoing communication system shown in FIG. 1 for moving a UE from a first communication system. To the second communication system, the method can include the following steps.
  • Step 201 The first core network entity determines first QoS flow information of the second communication system corresponding to the first EPS bearer of the UE in the first communication system, and saves the first QoS flow information.
  • the PDN connection in the first communication system corresponds to the PDU session in the second communication system, and one PDN connection may include multiple EPS bearers, and one PDU session may include multiple QoS flows, and the UE may be established in the first communication system.
  • a plurality of PDN connections, one or more of which may be moved to a PDN connection in the second communication system.
  • the PDN connection that can be moved to the second communication system means that the PGW used by the PDN connection is the SMF+PGW-C of 4G and 5G; or, when the UE moves from the first communication system to the second communication system A PDU session corresponding to the PDN connection may be established in the second communication system, the PDN connection having the same IP address as the PDU session; or the PGW used by the PDN connection is a SMG+ of 4G and 5G PGW-C, and when the UE moves from the first communication system to the second communication system, a PDU session corresponding to the PDN connection may be established within the second communication system, the PDN connection having the same IP address as the PDU session .
  • the first EPS bearer refers to an EPS bearer included in the PDN connection established by the UE in the first communications system, and may be an EPS bearer or a set of EPS bearers.
  • the first QoS flow corresponds to the first EPS bearer, and the first QoS flow may include one QoS flow or a set of QoS flows.
  • An EPS bearer can correspond to one or more QoS flows.
  • the first QoS flow information refers to information obtained by mapping the first EPS bearer to the QoS flow in the second communication system, for example, mapping according to a predefined mapping rule, or generating first QoS flow information according to the first EPS bearer. .
  • EPS bearers on the UE can be moved to the second communication system, eg the EPS bearer of non GBR cannot be moved to the second communication system; or when the PDN connection is not moveable to the second communication system, then all of the PDN connections None of the EPS bearers can be moved to the second communication system. Cannot be moved to the second pass The EPS bearer of the letter system does not have QoS flow information corresponding.
  • the first QoS flow information may include one or more QoS rules.
  • the first QoS flow information includes one or more of the following information: session aggregation maximum bit rate (session AMBR), SSC mode, PDU session identifier, and QoS rule.
  • the QoS rule can be either a QoS rule or multiple QoS rules.
  • the QoS rule includes one or more of the following information: a QoS rule identifier, a QoS flow identifier, a precedence, and a packet filter; or the QoS rule includes one or more of the following information: : QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the packet filter includes a packet filter attribute and a packet filter ID.
  • the first QoS flow information may further include a combination of one or more information of the 5QI, ARP, GFBR, MFBR, and notification control corresponding to the QoS flow.
  • the default bearer of the UE is established by the UE in establishing a PDN connection in the first communication system. That is, establishing a default bearer for the UE can be understood as a UE establishing a PDN connection.
  • the UE may specifically request to establish a PDN connection through an attach request or a PDN Connectivity Request.
  • the information about the PDU session of the second communications system corresponding to the PDN connection is sent to the UE by using a request message for establishing a default bearer, where the information of the PDU session includes the maximum bit rate of the session aggregation. (session AMBR), SSC mode, one or more of the PDU session identifiers.
  • the method for determining the first QoS flow information of the 5G communication system by the SMF+PGW-C may be: the SMF+PGW-C generates a 5G QoS rule according to the service flow template (TFT) of the EPS context. Specifically, the method includes: generating a QoS rule according to one or more Policy and Charging Control (PCC) rules for generating an EPS bearer TFT. The priority of each PCC is set to the priority of the QoS rule, and one or more packet filters of the PCC are set as packet filters of the QoS rules.
  • PCC Policy and Charging Control
  • SMF+PGW-C can also assign QoS rule identifiers to QoS rules.
  • the SMF+PGW-C can also set the QCI of the EPS bearer to the 5QI of the 5G, set the GBR of the EPS bearer to the GFBR of the 5G, set the MBR of the EPS bearer to the MFBR of the 5G, and set the default bearer of the PDN connection.
  • the EBI is set to a 5G PDU session ID.
  • the method may further include: the UE obtaining an identifier (QFI) of the first QoS flow.
  • the identifier of the first QoS flow is obtained by adding, by the UE, the identifier of the first EPS bearer (EBI) to a specific value; or the identifier of the first QoS flow is that the UE adds the identifier of the first EPS bearer to the specific field. owned.
  • QFI is obtained by adding EBI to a specific value, and the specific value is 10 as an example. If EBI is 5, QFI is 15; if EBI is 6, QFI is 16.
  • QFI is obtained by adding a specific field to the EBI. Taking a specific field as a byte for example, if the EBI is a byte, add a byte after the EBI to get the QFI, if a word of the EBI The section is 00000101, then the two bytes after QFI is increased by one byte is 00000101 00000001.
  • the saving, by the first core network entity, the first QoS flow information may include: the first core network entity storing the correspondence between the bearer identifier (EBI) of the first EPS bearer and the first QoS flow information; or The first core network entity saves a correspondence between the first EPS bearer context and the first QoS flow information; or the first core network entity saves the identifier of the first QoS flow and the first EPS bearer context
  • the first core network entity stores the identifier of the first QoS flow and the correspondence between the session identifier and the first EPS bearer context, where the session identifier is the identifier of the PDU session to which the first QoS flow belongs; or And storing a correspondence between the first EPS bearer and the first QoS flow; or storing a correspondence between the first EPS bearer and the index information of the first QoS flow, where the index information includes the first QoS flow identifier, or the first QoS flow identifier
  • the first core network entity may save the first QoS flow information in a bearer context of the first EPS bearer of the UE; or the first core network entity generates a QoS flow context of the second communication system for the UE, where the QoS flow context includes an EBI Or the first EPS bearer information.
  • the first communication system may be a 4G communication system
  • the second communication system may be a 5G communication system
  • the first core network entity may be a network element SMF+PGW-C set up by two communication systems. Therefore, the SMF+PGW-C can determine the first QoS flow information in the 5G communication system according to the EPS bearer context of the UE in the 4G communication system, and the QoS flow information can also be referred to as a 5G QoS rule (Rule) or a 5G QoS parameter.
  • Rule 5G QoS rule
  • the first QoS flow information includes QoS information of the QoS flow, a QoS flow identification QFI, a QoS rule, a PDU session information to which the QoS flow belongs, and a combination of one or more pieces of information of the QoS flow template.
  • the QoS information further includes a combination of one or more information of 5QI, ARP, GFBR, MFBR, and notification control corresponding to the QoS.
  • the SMF+PGW-C may generate QoS in the 5G QoS flow according to the QoS of the EPS bearer in the first EPS bearer, and generate a template or QoS rule of the 5G QoS flow according to the TFT of the EPS bearer.
  • Step 202 The first core network entity sends a first message, where the first message is used to establish or modify a first EPS bearer for the UE in the first communications system, where the first message includes the first QoS flow information.
  • the first core network entity may send the first message including the first QoS flow information to the UE, So that the UE acquires the first QoS flow information corresponding to the first EPS bearer.
  • the step 201 includes: the first core network entity maps the context of the first EPS bearer to the second communications.
  • the step 201 includes: the first core network entity mapping the modified context of the first EPS bearer to the second communications system.
  • First QoS flow information can be understood as generating first QoS flow information according to the context of the first EPS bearer; or mapping according to a predefined mapping rule.
  • the first QoS flow information may be complete first QoS flow information after being mapped by the first core network entity; or the first QoS flow information may be part information of the first QoS flow information after the first core network entity is mapped, Part of the information is the first QoS flow information obtained by the UE that cannot be locally mapped.
  • the part of the information includes partial QoS rule information and partial PDU session information.
  • the partial QoS rule information includes one or more of a QoS rule ID, a priority, and a packet filter identifier; and the partial PDU session information includes one or more of a session AMBR, an SSC mode, and a PDU session identifier.
  • the first core network entity SMF+PGW-C may send the first QoS flow information to the SGW by using the first message, and the first QoS flow information is forwarded by the SGW to the MME.
  • the first QoS flow information is sent to the MME by the MME, and the first QoS flow information is sent to the SGW by the SGW, and the first QoS flow information is forwarded to the MME by the SGW.
  • the first QoS flow information is then sent by the MME to the UE by using the first message.
  • the first message can include The protocol configuration option PCO
  • the first QoS flow information may be included in the PCO, which may be a commonly used PCO or an extended PCO.
  • the method further includes: the first core network entity may further allocate a QoS flow identifier to the UE, that is, step 201 above.
  • the QoS flow identifier corresponding to the QoS flow allocation included in the first QoS flow information is determined; or the bearer identifier of the first EPS bearer is mapped to the QoS flow identifier.
  • the method further includes: determining, by the first core network entity, that the first EPS bearer has a corresponding first QoS flow of the second communications system.
  • the information that is, the first core network entity determines whether the first EPS bearer of the UE in the first communication system has information about the first QoS flow in the corresponding second communication system, and if it is determined to exist, the first step is determined according to step 201 above.
  • a QoS flow information is used to modify the first EPS bearer for the UE in the first communications system.
  • the first EPS bearer has the first QoS flow information of the corresponding second communication system, and is specifically understood to include the first QoS flow information in the context information of the first EPS bearer; or the UE saves the first EPS separately
  • the context of the bearer and the first QoS flow information include index information of the first QoS flow in the context information of the first EPS bearer, and the index information may be a QoS flow ID, or a combination of a QoS flow ID and a PDU session ID.
  • the meanings of the QoS flow information and the information of the QoS flow are the same, and other parts of the text are the same as the understanding herein, and are not described again.
  • Step 203 When the UE receives the first message sent by the first core network entity, the UE may save the first QoS flow information.
  • the UE may save the first QoS flow information.
  • the UE may save the correspondence between the bearer identifier of the first EPS bearer and the first QoS flow information; or the UE saves the first EPS bearer context and the first QoS flow information.
  • the index information may be a QoS flow ID, or a combination of a QoS flow ID and a PDU session ID; or
  • the UE includes the information of the first QoS flow in the context of the first EPS bearer; or the UE separately saves the context of the first EPS bearer and the first QoS flow information, where the UE is in the first EPS bearer Context information includes index information of the first QoS flow, where the index information may be a QoS flow ID, or a combination of a QoS flow ID and a PDU session ID; or, a correspondence between the first EPS bearer and the first QoS flow is saved; Or storing a correspondence between the first EPS bearer and the index information of the first QoS flow, where the index information includes a first QoS flow identifier, or a combination of the first QoS flow identifier and the PDU session identifier.
  • the UE may save the correspondence between the bearer identifier of the first EPS bearer and the first QoS flow information, and may be specifically configured to save the bearer identifier of the first EPS bearer and the first QoS flow in the context of the first EPS bearer. Correspondence of the information.
  • the UE saves the correspondence between the first EPS bearer and the first QoS flow information, and may be specifically configured to save the information of the first QoS flow in the context of the first EPS bearer, or the context information of the first EPS bearer.
  • the index information of the first QoS flow is included, and the index information may be a QoS flow ID, or a combination of a QoS flow ID and a PDU session ID.
  • the PDU session ID here is the ID of the PDU session to which the QoS flow belongs, that is, the PDU session indicated by the PDU session ID includes the first QoS flow.
  • Step 204 The UE moves from the first communication system to the second communication system.
  • the UE moves from the first communications system to the second communications system by using a handover process, and the UE receives a handover command in the handover process, where the handover command includes one or more Index information of the QoS flow, the index information including a QoS flow identifier, or a combination of a QoS flow identifier and a PDU session identifier.
  • the handover command is sent by the base station of the first communication system to the UE, where the handover command includes configuration information allocated by the base station of the second communication system to the UE, and the configuration information is used by the UE to access the base station of the second communication system.
  • the configuration information includes a QoS flow identifier, or a combination of a QoS flow identifier and a PDU session ID.
  • Step 205 The UE determines QoS flow information used by the UE in the second communication system according to the first condition, where the first condition includes the first QoS flow information.
  • the first QoS flow information in the step 205 is consistent with the first QoS flow information in the foregoing step 201.
  • the method for determining the first QoS flow information by the UE is similar. For details, refer to the description in the foregoing step 201. This will not be repeated here.
  • the method for determining, by the UE, the QoS flow information used in the second communication system may be: the UE uses the currently used EPS bearer and the index of the QoS flow included in the handover command. The information is associated, and the UE deletes an EPS bearer that is not associated with the index information of the QoS flow in the currently used EPS bearer.
  • the currently used EPS bearer can be understood as an EPS bearer currently existing on the UE, or an EPS bearer currently active in the UE.
  • the UE associates the currently used EPS bearer with the index information of the QoS flow included in the handover command, including: the UE obtains an EPS bearer context corresponding to the index information of the QoS flow; or the UE obtains the QoS The EPS bearer identifier corresponding to the index information of the stream. Specifically, the UE obtains the index information of the QoS flow in the handover command, and the UE locally searches for the EPS bearer context or the EPS bearer identifier corresponding to the index information. The UE locally deletes other EPS bearers other than the EPS bearers that can be found on the UE.
  • Step 206 When the UE moves from the first communication system to the second communication system, or after the UE moves from the first communication system to the second communication system, the first core network entity determines, according to the fourth condition, the UE is The QoS flow information used in the second communication system, the fourth condition including the first QoS flow information.
  • the QoS flow information used by the UE in the second communication system may be QoS flow information corresponding to one or more PDU sessions of the UE, or may be information of one or more PDU sessions of the UE, and when included, When multiple, the corresponding information can be called a collection of information. That is, the QoS flow information can be understood as a set of one or more QoS flow information, and can also be understood as a collection of information of one or more PDU sessions. It can be understood that if there is only one QoS flow information or only one PDU session information in the QoS flow information, there is only one QoS flow information or one PDU session information in the set. The rest of this article is the same as this understanding and will not be described again.
  • the UE and the first core network entity may determine, according to the first QoS flow information included in the first condition, QoS flow information that is applicable to the UE in the second communication system, thereby implementing the UE in the first communication.
  • the mapping of the EPS bearers in the system to the QoS flows in the second communication system enables the UE to seamlessly transfer from the first communication system to the second communication system, and the QoS flow information can be used for communication or data transmission with the second communication system.
  • step 204 and step 205 and step 206 may be in no particular order.
  • the UE may first move from the first communication system to the second communication system, and then determine the second communication system. QoS flow information used in; or, the UE first determines QoS flow information used in the second communication system, and then moves from the first communication system to the second communication system; or, the UE moves from the first communication system
  • the QoS flow information used in the second communication system is determined, which is not specifically limited in this embodiment of the present application.
  • step 204 is preceded by steps 205 and 206. Line description.
  • step 201 the method further includes: step 200a - step 200b.
  • Step 200a The UE sends first information to the first core network entity in the process of establishing a PDN connection in the first communication system, where the first information is used by the first core network entity to determine that the PDN connection can be moved from the first communication system. To the second communication system.
  • the PDN connection establishment may be established in an attach process, or may be established according to a PDN connection establishment request requested by the UE.
  • the first information includes information indicating that the PDN connection can be moved to the second communication system, i.e., the first information includes information directly indicating that the PDN can be moved to the second communication system.
  • the first information includes information indicating that the PDN is connected to the service and the session continuity SSC mode of the corresponding PDU session in the second communication system, and the specified mode may be set in advance, that is, the first information includes the indirect Information indicating that the PDN can be moved to the second communication system.
  • the specified mode may be mode 1 in the SSC mode, that is, when the first information includes an SSC mode indicating that the PDN connection is in the second communication system, the SSC mode is mode 1, indicating that the PDN connection is Can be moved to the second communication system.
  • the UE may send the first information to the first core network entity by using the PCO, that is, the first information is included in the PCO, where the PCO may be a commonly used PCO. It can be an extended PCO.
  • Step 200b When the first core network entity receives the first information sent by the UE, the first core network entity determines, according to the first information, that the PDN connection can be moved from the first communication system to the second communication system.
  • the first core network entity may directly determine The PDN connection can be moved from the first communication system to the second communication system. If the first information includes information indicating that the SSC mode of the corresponding PDU session of the PDN connection in the second communication system is a specified mode, when the first core network entity receives the first information sent by the UE, the first core The network information determines whether the SSC mode indicated in the first information is a designated mode, and if it is a designated mode, determines that the PDN connection can be moved from the first communication system to the second communication system.
  • the method further includes: Step 201a-Step 201b.
  • Step 201a-Step 201b the specific functions of the SSC mode in FIG. 4 and FIG. 4A are different.
  • the SSC mode in FIG. 4 is a designated mode for indicating that the PDN connection can be moved to the second communication system
  • the SSC mode in FIG. 4A is the SSC of the corresponding PDU session of the PDN connection desired by the UE in the second communication system. mode.
  • Step 201a In the process of establishing a PDN connection in the first communication system, the UE sends second information to the first core network entity, where the second information is used to indicate that the PDN is connected to the SSC mode of the corresponding PDU session in the second communication system. .
  • the UE may send the second information to the first core network entity by using the PCO, that is, the second information is included in the PCO, where the PCO may be a commonly used PCO. It can be an extended PCO.
  • the UE may first send an attach request message or a PDU session establishment request message to the MME, and include the second information in the PCO of the message.
  • the MME sends the first core network through the SGW.
  • the entity sends a create session request, and the PCO is carried in the create session request.
  • Step 201b The first core network entity receives the second information sent by the UE, where the second information is used to indicate that the PDN is connected to the SSC mode of the corresponding PDU session in the second communication system.
  • the first core network entity may determine, according to the SSC mode indicated by the second information, the SSC mode of the corresponding PDU session of the PDN connection in the second communication system; or, the first core network entity Determining, according to the SSC mode indicated by the second information and the subscription data of the UE, the SSC mode in which the PDN is connected to the corresponding PDU session in the second communication system.
  • the SSC mode of the determined PDU session may be the indicated SSC mode, or may be other SSC modes.
  • the UE requests the SSC mode 1, the UE's subscription supports the SSC modes 1 and 2, and the determined SSC mode of the PDU session is 1; the UE requests the SSC mode 1, and the UE's subscription supports the SSC mode 2, then the determined SSC of the PDU session The mode is 2.
  • the process of the UE moving from the first communication system to the second communication system may be divided into two different situations according to whether the UE is in an idle state or in a connected state.
  • the following two cases are explained separately.
  • the UE moves from the first communication system to the second communication system in the idle state, specifically: the UE moves to the second communication system through a reselection process.
  • the UE detects that the signal of the base station of the first communication system is weak, and the UE initiates a cell search process, and after searching for the signal of the base station of the second communication system, reselects to the base station of the second communication system.
  • the UE moves from the first communication system to the second communication system in the connected state, specifically: the UE moves to the second communication system through the handover process.
  • the base station of the first communication system receives the measurement report reported by the UE, and determines that the UE should switch to the base station of the second communication system, and the base station of the first communication system initiates a handover process; when the UE receives the first communication
  • a handover command is sent by the base station of the system, the UE moves from the first communication system to the second communication system.
  • the UE moves from the first communication system to the second communication system in the idle state.
  • the moving from the first communication system to the second communication system in the idle state of the UE may be implemented by the following two methods (1) and (II), as follows.
  • the UE generates the first EPS bearer status information according to the second condition, and sends the first EPS bearer status information to the second core network entity, so that the second core network entity returns the second message, where the second message is sent.
  • the second EPS bearer status information is included, and the second core network entity is a core network entity in the second communication system for responsible for access and mobility management of the UE, such as AMF.
  • the first condition in the foregoing step 205 may further include second EPS bearer status information.
  • the second condition includes the correspondence between the UE in the foregoing step 203, that is, the correspondence between the EBI of the first EPS bearer and the first QoS flow information, or between the first EPS bearer and the first QoS flow information. Correspondence.
  • the EPS bearer status information is a phrase, and the “first” in the first EPS bearer status information and the “second” in the second EPS bearer status information are used to define different EPS bearer status information.
  • the first EPS bearer state information is used to identify an EPS bearer of the UE that is in an active state and has QoS flow information, that is, the EPS bearer identified in the first EPS bearer state information is determined by the UE according to the corresponding relationship.
  • the second EPS bearer status information is used to identify an EPS bearer of the UE that is determined by the second core network entity to be in an active state and has QoS flow information.
  • the UE has four active EPS bearers in the first communication system, and the four EPS bearers
  • the corresponding EBIs are 5, 6, 7, and 8, respectively.
  • 5 and 7 have corresponding QoS flow information
  • 6 and 8 have no corresponding QoS flow information.
  • the first EPS bearer status information reported by the UE only 5 and 7 are identified as active, and other bearer identifiers are inactive. The details are shown in Table 2 below.
  • the UE generates first EPS bearer status information according to the second condition, and sends the first EPS bearer status information to the second core network entity.
  • the second core network entity may receive the first EPS bearer status information, and obtain the PDN connection context of the UE from the core network entity MME of the first communications system, and determine the second information according to the sixth condition, where the sixth condition includes the first EPS bearer. Status information and PDN connection context.
  • the second core network entity sends the second information to the first core network entity, and the first core network entity generates the QoS flow information used by the UE in the second communication system according to the fifth condition, where the QoS flow information includes the second core network.
  • the QoS flow information corresponding to the EPS bearer of the UE in the active state determined by the entity, and the fifth condition includes the correspondence between the second information and the first core network entity.
  • the first core network entity may send the third information to the second core network entity, where the third information is a bearer identifier of the EPS bearer corresponding to the QoS flow information, so that the second core network entity generates the second according to the seventh condition.
  • the EPS carries the status information and sends it to the UE through the second message, and the seventh condition includes the third information.
  • the QoS flow information can be understood as a set of one or more QoS flow information, and can also be understood as a collection of information of one or more PDU sessions.
  • the second information includes an EPS bearer identifier EBI that can be moved to the second communication system; or a Linked Bearer ID (LBI) and an EPS bearer identifier EBI; or a PDN connection context, where the PDN connection uplink text includes Move to the EPS bearer context of the second communication system.
  • EBI EPS bearer identifier
  • LBI Linked Bearer ID
  • EBI EPS bearer identifier
  • PDN connection context where the PDN connection uplink text includes Move to the EPS bearer context of the second communication system.
  • the second information includes an EPS bearer identifier EBI that can be moved to the second communication system; or, the link bearer identifier and the EPS bearer identifier, when the first core network entity generates the QoS flow information, according to the EPS bearer identifier EBI, and the saved Corresponding relationship; or, generating second QoS flow information according to the link bearer identifier and the EPS bearer identifier, and the saved correspondence.
  • the second information includes the foregoing PDN connection context
  • the first core network entity maps the PDN connection context to the second QoS flow information according to the saved correspondence.
  • the first core network entity may be an SMF+PGW-C
  • the second core network entity may be an AMF.
  • the UE may send a registration request to the AMF, where the registration request may be Carrying the identifier of the UE and the first EPS bearer status information.
  • the AMF may acquire the MME serving the UE according to the identifier of the UE, and request the PDN connection context of the UE from the MME.
  • the AMF performs an authentication authentication process on the UE, and returns a PDN connection context confirmation message to the MME, and sends an update location request to the UDM+HSS, and the UDM+HSS returns a response message.
  • the AMF obtains a PDN connection and a PDN that can be moved from the first communication system (eg, 4G) to the second communication system (eg, 5G) according to the first EPS bearer status information sent by the UE and the PDN connection context obtained from the MME. Connect the EPS bearer inside and get the corresponding SMF+PGW-C address.
  • the AMF obtains the link bearer identifier and the bearer identifier corresponding to the PDN connection that can be moved to the second communication system, and sends the link bearer identifier and the bearer identifier to the SMF+PGW-C, and the SMF+PGW-C according to the saved correspondence relationship and the link bearer identifier and Carrying the identifier, generating the second QoS flow information; or, the AMF obtains the PDN connection context that can be moved to the second communication system, and sends it to the SMF+PGW-C, and the SMF+PGW-C receives the according to the saved correspondence.
  • the incoming PDN connection context is mapped to the second QoS flow information.
  • the SMF+PGW-C sends a bearer identifier of the EPS bearer corresponding to the second QoS flow information to the AMF, so that the AMF generates the second EPS bearer state information according to the bearer identifier, and sends the second EPS bearer state by registering the received message.
  • the information is returned to the UE.
  • the foregoing step 205 specifically includes: determining, by the UE, QoS flow information used by the UE in the second communications system according to the saved correspondence and the second EPS bearer state information.
  • the foregoing AMF obtains a PDN connection that can be moved from the first communication system (eg, 4G) to the second communication system (eg, 5G) and the EPS bearer in the PDN connection, and obtains the corresponding SMF+PGW-C address.
  • the process may include: obtaining, by the AMF, the PDN connection that can be moved to the second communication system and the EPS bearer in the PDN connection according to the intersection of the first EPS bearer status information and the EPS bearer in the bearer context in the PDN connection context; the AMF may be based on the PDN The connection context gets the SMF+PGW-C address.
  • the first QoS flow information is included in the N1 Session Management Information (N1SM Information) parameter; or the first message is a PDU session modification message, and the N1 session of the PDU session modification message is The first QoS flow information is included in the management information parameter.
  • N1SM Information N1 Session Management Information
  • the UE generates first QoS flow state information according to the third condition, and sends the first QoS flow state information to the second core network entity, so that the second core network entity returns the second message, where the second message is sent.
  • the second QoS flow state information is included, and the second core network entity is a core network entity in the second communication system for being responsible for access and mobility management of the UE.
  • the first condition in the foregoing step 205 may further include second QoS flow state information.
  • the third condition includes the corresponding relationship that the UE saves in the foregoing step 203, that is, the correspondence between the EBI of the first EPS bearer and the first QoS flow information, or the first EPS bearer context and the first QoS flow information. Correspondence relationship between the first EPS bearer context and the index information of the first QoS flow.
  • the QoS flow state information is a phrase, the "first" in the first QoS flow state information, and the "second" in the second QoS flow state information are used to define different QoS flow state information.
  • the first QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state, that is, the QoS flow identified in the first QoS flow state information is an active EPS determined by the UE according to the corresponding relationship.
  • the corresponding QoS flow is carried.
  • the second QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state determined by the second core network entity.
  • the QoS flow corresponding to the EPS bearer of the UE in the active state can be understood as the QoS flow corresponding to the EPS bearer corresponding to the QoS flow in the active state. That is, an EPS bearer in an active state can be understood as an EPS bearer that is in an active state and has a corresponding QoS flow. The rest of this article is the same as this understanding and will not be described again.
  • the UE generates first QoS flow state information according to the third condition, and sends the first QoS flow state information to the second core network entity.
  • the second core network entity receives the first QoS flow state information, and obtains the PDN connection context of the UE from the core network entity MME of the first communication system, and sends the first QoS flow state information and the PDN connection context And sending to the first core network entity, so that the first core network entity generates second QoS flow information of the UE in the second communication system according to the fifth condition, where the fifth condition includes the first QoS flow state information and the PDN connection context.
  • the first core network entity may return the second QoS flow information to the second core network entity, so that the second core network entity generates the second QoS flow state information, that is, the second information determined by the second core network entity, and passes The second message returns the second QoS flow status information to the UE.
  • the first core network entity may be an SMF+PGW-C
  • the second core network entity may be an AMF.
  • the UE may send a registration request to the AMF, where the registration request may be Carrying the identity of the UE and the first QoS flow state information.
  • the AMF may acquire the MME serving the UE according to the identifier of the UE, and request the PDN connection context of the UE from the MME.
  • the AMF performs an authentication authentication process on the UE, and returns a PDN connection context confirmation message to the MME, and sends an update location request to the UDM+HSS, and the UDM+HSS returns a response message.
  • the AMF learns that the PDN connection can be moved to the second communication system based on the SMF+PGW-C in the PDN connection context being a network element common to the first communication system (eg, 4G) and the second communication system (eg, 5G).
  • the AMF transmits the obtained PDN connection context and first QoS flow state information to the SMF+PGW-C.
  • the SMF+PGW-C maps the PDN connection context to the QoS flow information, and determines the intersection of the first QoS flow state information and the QoS flow information obtained by the mapping as the second QoS flow information, and may also delete the description not in the QoS flow information. QoS flow.
  • the SMF+PGW-C returns second QoS flow information to the AMF, and the AMF generates second QoS flow state information according to the second QoS flow information, and returns the second QoS flow state information to the UE by registering the received message.
  • the foregoing step 205 specifically includes: determining, by the UE, the QoS flow information used by the UE in the second communication system according to the saved correspondence relationship and the second QoS flow state information.
  • first EPS bearer state information and the first QoS flow state information in the foregoing manners (1) and (II) may be collectively referred to as first state information, second EPS bearer state information, and second QoS flow state information. Can be collectively referred to as second state information.
  • the second process of moving the UE from the first communication system to the second communication system in the connected state may include: receiving, by the UE, a handover command (Handover Command) sent by the base station of the first communication system, where the handover instruction includes the session identifier And QoS flow identification.
  • the first condition in the foregoing step 205 may further include a session identifier and a QoS flow identifier.
  • the first core network entity may be an SMF+PGW-C
  • the second core network entity may be an AMF, as shown in FIG. 7, when the base station of the first communication system (for example, a 4G base station) is determined.
  • the base station sends a handover request to the core network entity MME of the first communication system.
  • the MME receives the handover request
  • the MME sends a Relocation request to the core network entity AMF of the second communication system, where the migration request includes the PDN connection context of the UE.
  • the AMF obtains the SMF+PGW-C serving the UE according to the PDN connection context, and sends a Session Management (SM) Context Request message to the SMF+PGW-C, the request message including the PDN connection context.
  • SM Session Management
  • the SMF+PGW-C receives the SM Context Request message, determining PDU session information (also may be a PDU session context) in the second communication system corresponding to the PDN connection context according to the PDN connection context and the saved correspondence. ). Thereafter, the SMF+PGW-C sends an N4 session establishment request to the UPF+PGW-U, and sends an SM Context Response message to the AMF, the response message containing the PDU session information.
  • PDU session information also may be a PDU session context
  • the AMF sends a handover request to the base station of the second communication system, the handover request includes The PDU session information, the base station of the second communication system returns the radio resource information allocated for the UE to the AMF.
  • the AMF sends an SM Context Update message to the SMF+PGW-C, which is used to establish a tunnel between the UPF+PGW-U and the base station of the second communication system.
  • the AMF sends a location update response message to the MME, where the response message includes radio resource information allocated by the base station of the second communication system for the UE.
  • the MME sends a Create Forwarding Tunnel Request to the SGW, and transmits a handover command including the radio resource information allocated for the UE to the base station of the first communication system.
  • the base station of the first communication system sends a handover instruction to the UE, where the handover instruction includes radio resource information allocated for the UE, and the radio resource information includes a session identifier and a QoS flow identifier.
  • the foregoing SMF sends an SM Context Request message to the SMF+PGW-C
  • the process of determining the PDU session information in the second communication system by the SMF+PGW-C may include: the AMF acquisition may be moved from the first communication system to the second The PDN connection of the communication system and the EPS bearer in the PDN connection, and obtain the address, link bearer identifier and bearer identifier of the corresponding SMF+PGW-C.
  • the AMF sends the link bearer identifier and the bearer identifier to the SMF+PGW-C, and the SMF+PGW-C determines the PDU session information according to the link bearer identifier and the bearer identifier, and the saved correspondence relationship.
  • the AMF acquires an EPS bearer that can be moved from the first communication system to the PDN connection of the second communication system and the PDN connection, and acquires the address of the corresponding SMF+PGW-C and includes the EPS bearer that can be moved to the second communication system.
  • the context of the PDN connection context The AMF sends the PDN connection context to the SMF+PGW-C, and the SMF+PGW-C determines the PDU session information according to the PDN connection context and the saved correspondence.
  • the foregoing step 205 specifically includes: determining, by the UE, the QoS flow information used by the UE in the second communication system according to the first QoS flow information, the session identifier, and the QoS flow identifier.
  • step 203 before step 204, that is, after the UE receives the first message, and before the UE moves from the first communication system to the second communication system, the method further includes: step 203a-step 203b.
  • Step 203a The UE receives a fourth message, where the fourth message is used to delete the first EPS bearer.
  • the fourth message may be sent by the MME in the first communication system shown in FIG. 1 to the UE, that is, the MME sends a fourth message to the UE to instruct the UE to delete the first EPS bearer.
  • Step 203b The UE deletes the first EPS bearer and the first QoS flow information corresponding to the first EPS bearer.
  • the UE deletes the first QoS flow information corresponding to the first EPS bearer
  • the UE saves the first QoS flow information in the foregoing step 203, deleting the saved first QoS flow information;
  • the UE saves in the foregoing step 203 the correspondence between the bearer identifier of the first EPS bearer and the first QoS flow information, or the correspondence between the first EPS bearer context and the first QoS flow information, or The correspondence between the EPS bearer context and the index information of the first QoS flow, the UE deletes the saved correspondence.
  • the method may further include: Step 205a.
  • FIG. 8 is only an example of FIG. 4, and the method of moving between communication systems shown in FIG. 5 is also applicable.
  • Step 205a The UE deletes the context of the second EPS bearer, where the second EPS bearer is an EPS bearer corresponding to the QoS flow information in the UE.
  • the UE when the UE establishes a PDN connection, the UE indicates, by using the first information, that the first core network entity determines that the UE is in the first
  • the first EPS in the communication system carries the first QoS flow information in the second communication system corresponding to the first EPS.
  • the first core network entity determines and saves the first QoS flow information, and sends the first QoS flow information to the UE by using the first message, when the UE moves from the first communication system to the second communication system.
  • the UE and the first core network entity may determine QoS flow information used by the UE in the second communication system according to the first QoS flow information, so as to implement the first EPS bearer when the UE moves from the first communication system to the second communication system.
  • the mapping with the first QoS flow information, as well as the alignment of the active bearers, ensures that the UE seamlessly transfers to the second communication system.
  • FIG. 9 is a flowchart of a method for moving between communication systems according to an embodiment of the present application. Referring to FIG. 9, the method is applied to the foregoing communication system shown in FIG. 1 for moving a UE from a first communication system. To the second communication system, the method can include the following steps.
  • Step 301 The UE establishes a first EPS bearer in the first communication system, and moves from the first communication system to the second communication system.
  • the PDN connection in the first communication system corresponds to the PDU session in the second communication system, and one PDN connection may include multiple EPS bearers, and one PDU session may include multiple QoS flows, and the UE may be established in the first communication system.
  • a plurality of PDN connections, one or more of which may be moved to a PDN connection in the second communication system.
  • the PDN connection that can be moved to the second communication system means that the PGW used by the PDN connection is the SMF+PGW-C of 4G and 5G; or, when the UE moves from the first communication system to the second communication system A PDU session corresponding to the PDN connection may be established in the second communication system, the PDN connection having the same IP address as the PDU session; or the PGW used by the PDN connection is a SMG+ of 4G and 5G PGW-C, and when the UE moves from the first communication system to the second communication system, a PDU session corresponding to the PDN connection may be established within the second communication system, the PDN connection having the same IP address as the PDU session .
  • the first EPS bearer refers to an EPS bearer included in the PDN connection established by the UE in the first communications system, and may be an EPS bearer or a set of EPS bearers.
  • the first communication system may be a 4G communication system
  • the second communication system may be a 5G communication system, so that the UE may establish a first EPS bearer in the 4G communication system, and after establishing the first EPS bearer, Move from 4G communication system to 5G communication system.
  • Step 302 The UE receives a first message, where the first message includes first QoS flow information of the second communication system corresponding to the first EPS bearer.
  • the first QoS flow corresponds to the first EPS bearer, and the first QoS flow may include one QoS flow or a set of QoS flows.
  • the first QoS flow information refers to information obtained by mapping the first EPS bearer to the QoS flow in the second communication system.
  • the first QoS flow information includes QoS information of the QoS flow, for example, mapping according to a predefined mapping rule. Or generating first QoS flow information according to the first EPS bearer.
  • the QoS flow identifies the QFI, a combination of one or more pieces of information of the QoS flow template.
  • the QoS information may further include a combination of one or more information of the 5QI, ARP, GFBR, MFBR, and notification control corresponding to the QoS.
  • Not all EPS bearers on the UE can be moved to the second communication system eg the EPS bearer of non GBR cannot be moved to the second communication system, or when the PDN connection is not mobile to the second communication system, then all of the PDN connections None of the EPS bearers can be moved to the second communication system.
  • the EPS bearer that cannot be moved to the second communication system does not have QoS flow information corresponding.
  • the first QoS flow information may include one or more QoS rules.
  • the first QoS flow information includes one or more of the following information: session aggregation maximum bit rate (session AMBR), SSC mode, PDU session identifier, and QoS rule.
  • the QoS rule can be either a QoS rule or multiple QoS rules.
  • the QoS rule includes one or more of the following information: a QoS rule identifier, a QoS flow identifier, a precedence, and a packet filter; or the QoS rule includes one or more of the following information: : QoS rule identification, QoS flow identification, priority, packet filter identification.
  • the packet filter includes a packet filter attribute and a packet filter identifier.
  • the first QoS flow information may further include a combination of one or more information of the 5QI, ARP, GFBR, MFBR, and notification control corresponding to the QoS flow.
  • the default bearer of the UE is established by the UE in establishing a PDN connection in the first communication system. That is, establishing a default bearer for the UE can be understood as a UE establishing a PDN connection.
  • the UE may specifically request to establish a PDN connection through an attach request or a PDN Connectivity Request.
  • the information about the PDU session of the second communications system corresponding to the PDN connection is sent to the UE by using a request message for establishing a default bearer, where the information of the PDU session includes the maximum bit rate of the session aggregation. (session AMBR), SSC mode, one or more of the PDU session identifiers.
  • the method for determining the first QoS flow information of the 5G communication system by the SMF+PGW-C may be: the SMF+PGW-C generates a 5G QoS rule according to the service flow template (TFT) of the EPS context. Specifically, the method includes: generating a QoS rule according to one or more Policy and Charging Control (PCC) rules for generating an EPS bearer TFT. The priority of each PCC is set to the priority of the QoS rule, and one or more packet filters of the PCC are set as packet filters of the QoS rules.
  • PCC Policy and Charging Control
  • SMF+PGW-C can also assign QoS rule identifiers to QoS rules.
  • the SMF+PGW-C can also set the QCI of the EPS bearer to the 5QI of the 5G, set the GBR of the EPS bearer to the GFBR of the 5G, set the MBR of the EPS bearer to the MFBR of the 5G, and set the default bearer of the PDN connection.
  • the EBI is set to a 5G PDU session ID.
  • the method may further include: the UE obtaining an identifier (QFI) of the first QoS flow.
  • the identifier of the first QoS flow is obtained by adding, by the UE, the identifier of the first EPS bearer (EBI) to a specific value; or the identifier of the first QoS flow is that the UE adds the identifier of the first EPS bearer to the specific field. owned.
  • QFI is obtained by adding EBI to a specific value, and the specific value is 10 as an example. If EBI is 5, QFI is 15; if EBI is 6, QFI is 16.
  • QFI is obtained by adding a specific field to the EBI. Taking a specific field as a byte for example, if the EBI is a byte, add a byte after the EBI to get the QFI, if a word of the EBI The section is 00000101, then the two bytes after QFI is increased by one byte is 00000101 00000001.
  • the first message may be sent by the second core network entity to the UE, that is, before the second core network entity sends the first message, the second core network entity may determine the first QoS flow information, and the first message will be The first QoS flow information is sent to the UE, so that the UE receives the first message that is sent by the second core network entity and includes the first QoS flow information of the second communication system corresponding to the first EPS bearer.
  • the second core network entity may be a core network entity for the access and mobility management of the UE in the second communication system, and the second core network entity may be the AMF in the second communication system shown in FIG. 1 above. .
  • the first message may be a registration accept message, and the registration accepts the N1 session of the message.
  • the first QoS flow information is included in the management information parameter (N1SM Information); or the first message is a PDU session modification message, and the N1 session management information parameter of the PDU session modification message includes the first QoS flow information.
  • the first message is a Handover Command message, where the handover command message includes the first QoS flow information.
  • the QoS flow information in the 5G communication system may also be referred to as a 5G QoS parameter.
  • the target to the source transparent container of the handover command message includes the first QoS flow information.
  • the access layer of the UE may obtain the first QoS flow information from the target to the source transparent container and send it to the non-access layer of the UE.
  • the first message may further include information about the first EPS bearer corresponding to the first QoS flow information, where the information of the first EPS bearer may include the bearer identifier of the first EPS bearer.
  • the second core network entity may include the information of the first EPS bearer and the first QoS flow information in the first message, and send the first EPS message to the UE by using the first message.
  • Step 303 The UE determines QoS flow information used by the UE in the second communication system according to the first condition, where the first condition includes the first QoS flow information.
  • the QoS flow information used by the UE in the second communication system may be QoS flow information corresponding to one or more PDU sessions of the UE, or may be information of one or more PDU sessions of the UE, which is implemented by the present application. This example does not specifically limit this.
  • the UE determines the QoS flow information that the UE can use in the second communication system according to the first QoS flow information included in the first condition, thereby implementing the EPS bearer and the UE in the first communication system.
  • the mapping of QoS flows in the two communication systems allows the UE to seamlessly transfer from the first communication system to the second communication system.
  • the process of moving the UE from the first communications system to the second communications system may be performed in a sequence, that is, the UE may first move from the first communications system to the second communications system. Determining the QoS flow information used in the second communication system; or, the UE first determines the QoS flow information used in the second communication system, and then moves from the first communication system to the second communication system; or The QoS flow information used in the second communication system is determined by the UE in the process of moving from the first communication system to the second communication system, which is not specifically limited in this embodiment of the present application.
  • the process in which the UE moves from the first communication system to the second communication system in FIG. 9 is described as an example before step 303.
  • the process of moving the UE from the first communication system to the second communication system in the foregoing step 301 may be divided into two different situations according to whether the UE is idle or connected.
  • the UE moves from the first communication system to the second communication system in the idle state, specifically: the UE moves to the second communication system through a reselection process.
  • the UE detects that the signal of the base station of the first communication system is weak, and the UE initiates a cell search process, and after searching for the signal of the base station of the second communication system, reselects to the base station of the second communication system.
  • the UE moves from the first communication system to the second communication system in the connected state, specifically: the UE moves to the second communication system through the handover process.
  • the base station of the first communication system receives the measurement report reported by the UE, and determines that the UE should switch to the base station of the second communication system, and the base station of the first communication system initiates a handover process; when the UE receives the first communication
  • the handover command is sent by the base station of the system, the UE moves from the first communication system to the second communication system.
  • the UE moves from the first communication system to the second communication system in the idle state.
  • the moving from the first communication system to the second communication system in the idle state of the UE may be implemented by the following two methods (1) and (2), as follows.
  • the UE sends the first EPS bearer status information to the second core network entity, where the first EPS bearer status information is used to identify the EPS bearer of the UE in the active state, and the second core network entity is the second communication system.
  • the EPS bearer status information is a phrase, and the “first” in the first EPS bearer status information and the “second” in the second EPS bearer status information are used to define different EPS bearer status information.
  • the first EPS bearer status information is used to identify the EPS bearer in the active state, that is, the EPS bearer identified in the first EPS bearer status information is an EPS bearer in the active state determined by the UE.
  • the UE has four active EPS bearers in the first communication system, and the EBIs corresponding to the four EPS bearers are 5, 6, 7, and 8, respectively. 5 and 7 have corresponding QoS flow information, and 6 and 8 have no corresponding QoS flow information.
  • 5 and 7 have corresponding QoS flow information
  • 6 and 8 have no corresponding QoS flow information.
  • the first EPS bearer status information reported by the UE only 5 and 7 are identified as active, and other bearer identifiers are inactive. Specifically, as shown in Table 2 above.
  • the UE may determine the first EPS bearer status according to the EPS bearer in the active state, and send the first EPS bearer status to the second core network entity.
  • the second core network entity receives the first EPS bearer status information, and obtains a PDN connection context of all PDN connections including the UE from the core network entity MME of the first communication system, and determines the first EPS bearer status information and the PDN connection context.
  • the second information includes an EPS bearer that is moveable to the second communication system and obtains a PDN connection context corresponding to the EPS that can be moved to the second communication system.
  • the second core network entity sends the obtained PDN connection context to the first core network entity, so that the first core network entity generates QoS flow information used by the UE in the second communication system, where the QoS flow information includes the first core network.
  • the QoS flow information corresponding to the EPS bearer of the UE in the active state determined by the entity.
  • the first core network entity may send second QoS flow information to the second core network entity to cause the second core network entity to send it to the UE according to the second QoS flow information.
  • the QoS flow information can be understood as a set of one or more QoS flow information, and can also be understood as a collection of information of one or more PDU sessions.
  • the first core network entity may be an SMF+PGW-C
  • the second core network entity may be an AMF.
  • the UE may send a registration request to the AMF, where the registration request may be Carrying the identifier of the UE and the first EPS bearer status information.
  • the AMF may acquire the MME serving the UE according to the identifier of the UE, and request the PDN connection context of the UE from the MME.
  • the AMF performs an authentication authentication process on the UE, and returns a PDN connection context confirmation message to the MME, and sends an update location request to the UDM+HSS, and the UDM+HSS returns a response message.
  • the AMF obtains a PDN connection and a PDN connection that can be moved from the first communication system (eg, 4G) to the second communication system (eg, 5G) according to the first EPS bearer status information sent by the UE and the PDN connection context obtained from the MME.
  • the EPS is carried within and the corresponding SMF+PGW-C address and PDN connection context are obtained.
  • the AMF obtains a PDN connection context that can be moved to the second communication system and transmits it to the SMF+PGW-C, and the SMF+PGW-C generates second QoS flow information according to the received PDN connection context.
  • the SMF+PGW-C sends a second QoS flow information to the AMF to cause the AMF to return the second QoS flow information to the UE through the registration accept message.
  • the UE may save the second QoS flow information, and delete the EPS bearer corresponding to the QoS flow in the first EPS bearer.
  • the foregoing step 303 specifically includes: the UE according to the first QoS flow information and the second QoS flow message Information, determining QoS flow information used by the UE in the second communication system.
  • the foregoing AMF obtains a PDN connection that can be moved from the first communication system (eg, 4G) to the second communication system (eg, 5G) and the EPS bearer in the PDN connection, and obtains the corresponding SMF+PGW-C address.
  • the process may include: the AMF acquiring, according to the intersection of the first EPS bearer state information and the EPS bearer in the bearer context in the PDN connection context, a PDN connection movable to the second communication system and an EPS bearer within the PDN connection; the AMF is movable according to the The SMF+PGW-C address is obtained to the PDN connection context of the second communication system.
  • the UE generates first QoS flow state information according to the second condition, where the second condition includes an EPS bearer of the UE in an active state, and the UE sends the first QoS flow state information to the second core network entity.
  • the QoS flow state information is a phrase, and the “first” in the first QoS flow state information and the “second” in the second QoS flow state information described below are used to define different QoS flow state information.
  • the first QoS flow state information is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state, that is, the QoS flow identified in the first QoS flow state information is determined by the UE according to the determined EPS bearer in an active state.
  • Corresponding QoS flow is used to identify the QoS flow corresponding to the EPS bearer of the UE in the active state determined by the second core network entity.
  • the UE generates first QoS flow state information according to the EPS bearer of the UE in an active state, and sends the first QoS flow state information to the second core network entity.
  • the second core network entity receives the first QoS flow state information, and obtains the PDN connection context of the UE from the core network entity MME of the first communication system, and sends the first QoS flow state information and the PDN connection context to the first core network entity. So that the first core network entity generates the second QoS flow information of the UE in the second communication system according to the UE. Thereafter, the first core network entity may return second QoS flow information to the second core network entity, so that the second core network entity sends the second QoS flow state information to the UE by using a registration accept message.
  • the first core network entity may be an SMF+PGW-C
  • the second core network entity may be an AMF.
  • the UE may send a registration request to the AMF, where the registration request may be Carrying the identity of the UE and the first QoS flow state information.
  • the AMF may acquire the MME serving the UE according to the identifier of the UE, and request the PDN connection context of the UE from the MME.
  • the AMF performs an authentication authentication process on the UE, and returns a PDN connection context confirmation message to the MME, and sends an update location request to the UDM+HSS, and the UDM+HSS returns a response message.
  • the AMF learns that the PDN connection can be moved to the second communication system based on the SMF+PGW-C in the PDN connection context being a network element common to the first communication system (eg, 4G) and the second communication system (eg, 5G).
  • the AMF transmits the obtained PDN connection context and first QoS flow state information to the SMF+PGW-C.
  • the SMF+PGW-C maps the PDN connection context to the QoS flow information, and determines the intersection of the first QoS flow state information and the QoS flow information obtained by the mapping as the second QoS flow information, and may also delete the description not in the QoS flow information. QoS flow.
  • the SMF+PGW-C returns second QoS flow information to the AMF, and the AMF generates second QoS flow state information according to the second QoS flow information, and returns the second QoS flow state information to the UE by using the registration accept message.
  • the UE may save the second QoS flow information, and delete the EPS bearer corresponding to the QoS flow in the first EPS bearer.
  • the foregoing step 303 specifically includes: the UE determining, according to the first QoS flow information and the second QoS flow information, QoS flow information used by the UE in the second communication system.
  • the method may include: the UE receiving a handover instruction sent by a base station of the first communication system, where the handover instruction includes a session identifier and a QoS flow identifier.
  • the first core network entity may be SMF+PGW-C
  • the second core network entity may be AMF, as shown in FIG. 12, when the base station of the first communication system (for example, E-UTRAN)
  • the base station sends a handover request to the core network entity MME of the first communication system.
  • the MME receives the handover request
  • the MME sends a Relocation request to the core network entity AMF of the second communication system, where the migration request includes the PDN connection context of the UE.
  • the AMF obtains the SMF+PGW-C serving the UE according to the PDN connection context, and sends a Session Management (SM) Context Request message to the SMF+PGW-C, the request message including the PDN connection context.
  • SM Session Management
  • the SMF+PGW-C receives the SM Context Request message, the PDU session context in the second communication system corresponding to the PDN connection context is determined according to the PDN connection context. Thereafter, the SMF+PGW-C sends an N4 session establishment request to the UPF+PGW-U, and sends an SM Context Response message to the AMF, the response message containing the PDU session information.
  • the AMF sends a handover request to the base station of the second communication system, the handover request includes PDU session information, and the base station of the second communication system returns the radio resource information allocated for the UE to the AMF.
  • the AMF sends an SM Context Update message to the SMF+PGW-C, which is used to establish a tunnel between the UPF+PGW-U and the base station of the second communication system.
  • the AMF sends a location update response message to the MME, where the response message includes radio resource information and a PDU session context allocated by the base station of the second communication system for the UE.
  • the MME sends a Create Forwarding Tunnel Request to the SGW, and transmits a handover instruction including the PDU session context and the radio resource information allocated for the UE to the base station of the first communication system.
  • the base station of the first communication system sends a handover instruction to the UE, where the handover instruction includes a PDU session context and radio resource information allocated for the UE, and the radio resource information includes a session identifier and a QoS flow identifier.
  • the process in which the AMF sends the PDU session context to the UE in the foregoing embodiment may be: the AMF sends the PDU session context to the base station of the second communication system, and the base station of the second communication system encapsulates the target to the source. Send it to AMF in a transparent container. Thereafter, the AMF is transmitted to the UE through the MME and the base station of the first communication system.
  • the process in which the AMF allocates radio resource information to the UE is consistent with the foregoing description.
  • the foregoing SMF sends an SM Context Request message to the SMF+PGW-C
  • the process of determining the PDU session information in the second communication system by the SMF+PGW-C may include: the AMF acquisition may be moved from the first communication system to the second The PDN connection of the communication system and the EPS bearer in the PDN connection, and obtain the address, link bearer identifier and bearer identifier of the corresponding SMF+PGW-C.
  • the AMF sends the link bearer identifier and the bearer identifier to the SMF+PGW-C, and the SMF+PGW-C determines the PDU session information according to the link bearer identifier and the bearer identifier, and the saved correspondence relationship.
  • the AMF acquires an EPS bearer that can be moved from the first communication system to the PDN connection of the second communication system and the PDN connection, and acquires the address of the corresponding SMF+PGW-C and includes the EPS bearer that can be moved to the second communication system.
  • the context of the PDN connection context The AMF sends the PDN connection context to the SMF+PGW-C, and the SMF+PGW-C determines the PDU session information according to the PDN connection context and the saved correspondence.
  • the foregoing step 303 specifically includes: determining, by the UE, QoS flow information used by the UE in the second communication system according to the first QoS flow information, the session identifier, and the QoS flow identifier.
  • the method may further include: step 304.
  • Step 304 The UE deletes the context of the second EPS bearer, where the second EPS bearer is not included in the UE.
  • the EPS bearer in the first message, or the second EPS bearer is an EPS bearer corresponding to the UE without QoS flow information.
  • the UE establishes a first EPS bearer in the first communication system, and moves from the first communication system to the second communication system, and receives the second core network entity to send Determining, by the first QoS flow information corresponding to the first EPS bearer, the QoS flow information used by the UE in the second communication system according to the first condition that includes the first QoS flow information, thereby implementing the UE moving from the first communication system
  • the mapping between the first EPS bearer and the first QoS flow information, and the alignment of the active bearers ensure that the UE seamlessly transfers to the second communication system.
  • each network element such as the user equipment UE, the first core network device, and the second core network device, etc.
  • each network element such as the user equipment UE, the first core network device, and the second core network device, etc.
  • each network element includes corresponding hardware structures and/or software modules for performing the respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in conjunction with the network elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the user equipment, the first core network device, and the second core network device may be divided into functional modules according to the foregoing method.
  • each functional module may be divided according to each function, or two or more functions may be used.
  • the functionality is integrated in a processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 14 is a schematic diagram showing a possible structure of the user equipment involved in the foregoing embodiment, where the user equipment 300 includes: a receiving unit 301, a saving unit 302, and a mobile unit. 303 and determining unit 304.
  • the receiving unit 301 is configured to perform the step of receiving the first QoS flow information in FIG. 3, FIG. 4 or FIG. 8;
  • the saving unit 302 is configured to perform the step of saving the first QoS flow information in FIG. 3, FIG. 4 or FIG. 8;
  • the mobile unit 303 is configured to perform step 204 in FIG. 3, FIG. 4 or FIG. 8; and the determining unit 304 is configured to perform step 205 in FIG. 3, FIG. 4 or FIG.
  • the user equipment 300 further includes: a sending unit 305, and/or a deleting unit 306; wherein the sending unit 305 is configured to perform step 200a in FIG. 4 or FIG. 8 and step 201a in the step of FIG. 4A; Step 205a in Fig. 8 is performed. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional description of the corresponding functional modules, and details are not described herein again.
  • the mobile unit 303, the determining unit 304, and the deleting unit 306 may be processors; the receiving unit 301 may be a receiver; the sending unit 305 may be a transmitter, and the receiver may form a communication interface.
  • FIG. 15 is a schematic diagram showing a possible logical structure of the user equipment 310 involved in the foregoing embodiment provided by the embodiment of the present application.
  • User equipment 310 includes a processor 312, a communication interface 313, a memory 311, and a bus 314.
  • the processor 312, the communication interface 313, and the memory 311 are connected to one another via a bus 314.
  • the processor 312 is configured to control and manage the actions of the user equipment 310.
  • the processor 312 is configured to perform steps 203 and 204 in FIG. 3, FIG. 4 or FIG. 8, and in FIG. Step 205a, And/or other processes for the techniques described herein.
  • Communication interface 313 is used to support user equipment 310 to communicate.
  • the memory 311 is configured to store program codes and data of the user equipment 310.
  • the processor 312 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like.
  • the bus 314 can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • FIG. 16 is a schematic diagram of a possible structure of the first core network device involved in the foregoing embodiment, where the first core network device 400 includes: a determining unit 401, The transmitting unit 402 and the saving unit 403.
  • the determining unit 401 is configured to perform the step of determining the first QoS flow information in step 201 in FIG. 3 or FIG. 4 or the step of determining the first QoS flow information in steps 200b and 201 in FIG. 8; the sending unit 402 For performing step 202 in FIG. 3, FIG. 4 or FIG. 8;
  • the saving unit 403 is configured to perform the step of saving the first QoS flow information in step 201 of FIG. 3, FIG. 4 or FIG.
  • the apparatus 400 further includes a receiving unit 404 for performing the step of receiving the first information transmitted by the UE in FIG. 4, step 201b in FIG. 4A, and/or other processes for the techniques described herein. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional description of the corresponding functional modules, and details are not described herein again.
  • FIG. 17 is a schematic diagram showing a possible logical structure of the first core network device 410 involved in the foregoing embodiment provided by the embodiment of the present application.
  • the first core network device 410 includes a processor 412, a communication interface 413, a memory 411, and a bus 414.
  • the processor 412, the communication interface 413, and the memory 411 are connected to one another via a bus 414.
  • the processor 412 is configured to perform control management on the actions of the first core network device 410.
  • the processor 412 is configured to perform steps 201 and 206 in FIG. 3 or FIG. 8, and in FIG. Step 200b, step 201 and step 206, and/or other processes for the techniques described herein.
  • the communication interface 413 is configured to support the first core network device 410 for communication.
  • the memory 411 is configured to store program codes and data of the first core network device 410.
  • the processor 412 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like.
  • the bus 414 can be a peripheral component interconnect standard PCI bus or an extended industry standard architecture EISA bus or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 17, but it does not mean that there is only one bus or one type of bus.
  • FIG. 18 is a schematic diagram of a possible configuration of the second core network device involved in the foregoing embodiment, where the second core network device 500 includes: an obtaining unit 501, The determining unit 502 and the transmitting unit 503.
  • the obtaining unit 501 is configured to perform the steps of acquiring the first state information and the PDN connection context, and the step of performing the third information sent by the first core network entity
  • the determining unit 502 is configured to perform the step of determining the second information.
  • the transmitting unit 503 is configured to perform the step of transmitting the second information and the step of transmitting the second message to the UE. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional description of the corresponding functional modules, and details are not described herein again.
  • the determining unit 502 may be a processor; the obtaining unit 501 may be a receiver, and the sending unit 503 may be a transmitter, and the receiver may form a communication interface.
  • FIG. 19 is a schematic diagram showing a possible logical structure of the second core network device 510 involved in the foregoing embodiment provided by the embodiment of the present application.
  • the second core network device 510 includes a processor 512, a communication interface 513, a memory 511, and a bus 514.
  • the processor 512, the communication interface 513, and the memory 511 are connected to one another via a bus 514.
  • the processor 512 is configured to control manage the actions of the second core network device 510, for example, the processor 512 is configured to perform the steps of determining the second information, and/or for the techniques described herein Other processes.
  • the communication interface 513 is for supporting the second core network device 510 to perform communication.
  • the memory 511 is configured to store program codes and data of the second core network device 510.
  • the processor 512 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like.
  • the bus 514 can be a peripheral component interconnect standard PCI bus or an extended industry standard architecture EISA bus or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 19, but it does not mean that there is only one bus or one type of bus.
  • FIG. 20 is a schematic diagram of a possible structure of the user equipment involved in the foregoing embodiment, where the user equipment 600 includes: an establishing unit 601, a mobile unit 602, and a receiving unit. 603 and determining unit 604.
  • the establishing unit 601 is configured to perform the step of establishing an EPS bearer in the first communication system in step 301 of FIG. 9 or FIG. 13;
  • the mobile unit 602 is configured to perform the first communication system in step 301 in FIG. 9 or FIG.
  • the receiving unit 603 is configured to perform step 302 of FIG. 9 or FIG. 13;
  • the determining unit 604 is configured to perform 9 or step 303 in FIG.
  • the user equipment 600 further includes: a sending unit 605, and/or a deleting unit 606; wherein the sending unit 605 is configured to perform the step of sending the first EPS bearer status information to the second core network device, or to the second core network The step of the device transmitting the first QoS flow state information; the deleting unit 606 is configured to perform step 304 in FIG. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional description of the corresponding functional modules, and details are not described herein again.
  • the determining unit 604 and the deleting unit 606 may be a processor; the receiving unit 603 may be a receiver; and the sending unit 605 may be a transmitter, which may form a communication interface with the receiver.
  • FIG. 21 is a diagram of a user equipment 610 involved in the foregoing embodiment provided by an embodiment of the present application.
  • User equipment 610 includes a processor 612, a communication interface 613, a memory 611, and a bus 614.
  • the processor 612, the communication interface 613, and the memory 611 are connected to each other through a bus 614.
  • the processor 612 is configured to perform control management on the actions of the user equipment 610.
  • the processor 612 is configured to perform step 303 in FIG. 13 or FIG. 13, perform step 304 in FIG. 13, and/or Other processes for the techniques described herein.
  • the communication interface 613 is for supporting the user equipment 610 to perform communication.
  • the memory 611 is configured to store program codes and data of the user equipment 610.
  • the processor 612 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like.
  • the bus 614 can be a peripheral component interconnect standard PCI bus or an extended industry standard architecture EISA bus or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 21, but it does not mean that there is only one bus or one type of bus.
  • FIG. 22 is a schematic diagram of a possible structure of the first core network device involved in the foregoing embodiment, where the first core network device 700 includes: a receiving unit 701, Determination unit 702.
  • the receiving unit 701 is configured to perform, when the UE moves from the first communications system to the second communications system, receive the first information sent by the second core network device, or receive the second information sent by the second core network device.
  • the first core network device 700 further includes:
  • the deleting unit 703 is configured to perform a QoS flow that is not in the QoS flow state information in the QoS flow corresponding to the EPS bearer that deletes the PDN connection. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional description of the corresponding functional modules, and details are not described herein again.
  • FIG. 23 is a schematic diagram showing a possible logical structure of the first core network device 710 involved in the foregoing embodiment provided by the embodiment of the present application.
  • the first core network device 710 includes a processor 712, a communication interface 713, a memory 711, and a bus 714.
  • the processor 712, the communication interface 713, and the memory 711 are connected to each other through a bus 714.
  • the processor 712 is configured to perform control management on the action of the first core network device 710, for example, the processor 712 is configured to perform QoS flow state information for determining that the UE is used in the second communication system, and / or other processes for the techniques described herein.
  • the communication interface 713 is configured to support the first core network device 710 for communication.
  • the memory 711 is configured to store program codes and data of the first core network device 710.
  • the processor 712 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like.
  • the bus 714 can be a peripheral component interconnect standard PCI bus or an extended industry standard architecture EISA bus or the like.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For convenience of representation, only one thick line is shown in Figure 23, but it does not mean that there is only one Bus or a type of bus.
  • FIG. 24 is a schematic diagram showing a possible structure of the second core network device involved in the foregoing embodiment, where the second core network device 800 includes: an obtaining unit 801 and Transmitting unit 802.
  • the obtaining unit 501 is configured to perform the step of acquiring the first QoS flow information, and/or other processes described herein;
  • the sending unit 802 is configured to perform the step of sending the first QoS flow information to the UE, and/or described herein.
  • the second core network device 800 further includes: a determining unit 803, configured to perform the step of determining the third information according to the first EPS bearer status information and the PDN connection context, and/or other processes described herein. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional description of the corresponding functional modules, and details are not described herein again.
  • FIG. 25 is a schematic diagram showing a possible logical structure of the second core network device 810 involved in the foregoing embodiment provided by the embodiment of the present application.
  • the second core network device 810 includes a processor 812, a communication interface 813, a memory 811, and a bus 814.
  • the processor 812, the communication interface 813, and the memory 811 are connected to one another via a bus 814.
  • the processor 812 is configured to perform control management on the action of the second core network device 810.
  • the processor 812 is configured to perform the step of determining the third information according to the first EPS bearer state information and the PDN connection context. And/or other processes for the techniques described herein.
  • the communication interface 813 is for supporting the second core network device 810 for communication.
  • the memory 811 is configured to store program codes and data of the second core network device 810.
  • the processor 812 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like.
  • the bus 814 can be a peripheral component interconnect standard PCI bus or an extended industry standard architecture EISA bus or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 25, but it does not mean that there is only one bus or one type of bus.
  • a system is further provided, where the system includes a user equipment UE, a first core network device, and a second core network device; wherein the user equipment is the user provided in FIG. 14 or FIG. The device, or the user equipment provided in FIG. 20 or FIG. 21 above; and/or the first core network device is the first core network device provided in FIG. 16 or FIG. 17, or the above-mentioned FIG. 22 and FIG. The first core network device; and/or the second core network device is the second core network device provided in FIG. 18 or FIG. 19 above, or the second core network device provided in FIG. 24 or FIG. 25 above.
  • a computer readable storage medium is stored, where computer execution instructions are stored, and when at least one processor of the device executes the computer to execute an instruction, the device executes FIG.
  • a computer program product comprising computer executed instructions stored in a computer readable storage medium; at least one of the devices
  • the processor can read the computer execution instructions from a computer readable storage medium, and the at least one processor executes the computer execution instructions such that the apparatus implements the inter-communication system movement method provided by FIG. 3, FIG. 4 or FIG. 8, or implements FIG. 9 or Figure 13 illustrates a method of moving between communication systems.
  • the UE when the UE establishes a PDN connection, the UE indicates, by using the first information, that the first core network entity determines that the UE is in the second communication system corresponding to the first EPS bearer in the first communication system. First QoS flow information. Thereafter, the first core network entity determines and saves the first QoS flow information, and sends the first QoS flow information to the UE by using the first message, when the UE moves from the first communication system to the second communication system, The UE and the first core network entity may determine QoS flow information used by the UE in the second communication system according to the first QoS flow information, so as to implement the first EPS bearer when the UE moves from the first communication system to the second communication system.
  • the mapping with the first QoS flow information, as well as the alignment of the active bearers, ensures that the UE seamlessly transfers to the second communication system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)
  • Residential Or Office Buildings (AREA)
  • Radar Systems Or Details Thereof (AREA)
PCT/CN2017/088814 2017-05-08 2017-06-16 一种通信系统间移动方法及装置 Ceased WO2018205351A1 (zh)

Priority Applications (20)

Application Number Priority Date Filing Date Title
CN202010079741.9A CN111465063B (zh) 2017-05-08 2017-06-16 一种通信系统间移动方法及装置
AU2017413894A AU2017413894B2 (en) 2017-05-08 2017-06-16 Method for moving between communications systems and apparatus
EP23168440.8A EP4250868A3 (en) 2017-05-08 2017-06-16 Method and apparatus for moving between communications systems
CA3062906A CA3062906C (en) 2017-05-08 2017-06-16 Method and apparatus for moving between communications systems
KR1020197036076A KR102288839B1 (ko) 2017-05-08 2017-06-16 통신 시스템 간 이동 방법 및 장치
KR1020217024840A KR102334728B1 (ko) 2017-05-08 2017-06-16 통신 시스템 간 이동 방법 및 장치
CN202010079673.6A CN111465062B (zh) 2017-05-08 2017-06-16 一种通信系统间移动方法及装置
ES17909293T ES2908270T3 (es) 2017-05-08 2017-06-16 Método y dispositivo para movimiento entre sistemas de comunicación
EP25182894.3A EP4642153A2 (en) 2017-05-08 2017-06-16 Method for moving between communications systems and apparatus
KR1020217038991A KR102500723B1 (ko) 2017-05-08 2017-06-16 통신 시스템 간 이동 방법 및 장치
EP21183351.2A EP3952449B1 (en) 2017-05-08 2017-06-16 Method and apparatus for moving between communications systems
EP17909293.7A EP3621354B1 (en) 2017-05-08 2017-06-16 Method and device for moving between communication systems
JP2019561240A JP7021257B2 (ja) 2017-05-08 2017-06-16 通信システム間を移動するための方法および装置
CN201780005190.8A CN108513726B (zh) 2017-05-08 2017-06-16 一种通信系统间移动方法及装置
US16/677,257 US11051224B2 (en) 2017-05-08 2019-11-07 Method for moving between communications systems and apparatus
US17/328,825 US12114219B2 (en) 2017-05-08 2021-05-24 Method for moving between communications systems and apparatus
AU2021204507A AU2021204507B2 (en) 2017-05-08 2021-06-30 Method for moving between communications systems and apparatus
JP2022014865A JP2022070887A (ja) 2017-05-08 2022-02-02 通信システム間を移動するための方法および装置
JP2023142941A JP7725534B2 (ja) 2017-05-08 2023-09-04 通信システム間を移動するための方法および装置
US18/741,118 US20240334285A1 (en) 2017-05-08 2024-06-12 Method for Moving Between Communications Systems and Apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2017/083522 2017-05-08
CN2017083522 2017-05-08

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/677,257 Continuation US11051224B2 (en) 2017-05-08 2019-11-07 Method for moving between communications systems and apparatus

Publications (1)

Publication Number Publication Date
WO2018205351A1 true WO2018205351A1 (zh) 2018-11-15

Family

ID=64105717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/088814 Ceased WO2018205351A1 (zh) 2017-05-08 2017-06-16 一种通信系统间移动方法及装置

Country Status (9)

Country Link
US (3) US11051224B2 (enExample)
EP (4) EP4250868A3 (enExample)
JP (3) JP7021257B2 (enExample)
KR (3) KR102288839B1 (enExample)
CN (4) CN111163495B (enExample)
AU (2) AU2017413894B2 (enExample)
CA (1) CA3062906C (enExample)
ES (2) ES2908270T3 (enExample)
WO (1) WO2018205351A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109451534A (zh) * 2018-12-17 2019-03-08 东南大学 一种用于5G系统会话管理中QoS流的动态控制方法和装置
CN111182580A (zh) * 2018-11-16 2020-05-19 维沃移动通信有限公司 业务传输方法、终端和网络侧设备
CN113661776A (zh) * 2019-03-29 2021-11-16 瑞典爱立信有限公司 用于在通信系统中同步QoS流的状态的方法、装置

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11201803446SA (en) * 2015-10-28 2018-05-30 Huawei Tech Co Ltd Bearer processing method and system and related apparatus
ES2908270T3 (es) * 2017-05-08 2022-04-28 Huawei Tech Co Ltd Método y dispositivo para movimiento entre sistemas de comunicación
CN108882367B (zh) * 2017-05-11 2020-10-30 维沃移动通信有限公司 数据传输的控制方法及装置
CN109005565B (zh) * 2017-06-06 2022-11-04 大唐移动通信设备有限公司 一种会话管理方法和装置
WO2018228137A1 (zh) * 2017-06-15 2018-12-20 电信科学技术研究院有限公司 一种数据中转方法、装置、网络功能实体及smf实体
KR102329925B1 (ko) * 2017-08-14 2021-11-23 삼성전자 주식회사 4g/5g 동시 등록된 이동 통신 단말을 위한 네트워크 이동시 데이터 동기화 제공 방안
CN113543233B (zh) * 2017-11-03 2025-01-10 华为技术有限公司 通信方法、网元、终端装置和系统
CN109803329B (zh) * 2017-11-16 2021-01-22 电信科学技术研究院 数据前转隧道确定方法、接入和移动性管理设备及基站
US20190313311A1 (en) 2018-04-09 2019-10-10 Mediatek Inc. Apparatuses, service networks, and methods for handling plmn-specific parameters for an inter-plmn handover
US11323934B2 (en) 2018-04-09 2022-05-03 Nokia Technologies Oy Session context conversion
CN110519805B (zh) * 2018-05-21 2023-11-17 华为技术有限公司 在会话中建立GBR QoS流的方法和装置
US11026124B2 (en) 2018-07-02 2021-06-01 Mediatek Inc. Enhanced handling on 5G QoS operations
BR112020025742A2 (pt) * 2018-08-10 2021-03-16 Telefonaktiebolaget Lm Ericsson (Publ) Métodos em um primeiro e um segundo nó para facilitar um procedimento de sessão de unidade de dados de protocolo para um equipamento de usuário, primeiro e segundo nós, e, meio legível por máquina
US11039369B2 (en) * 2018-08-10 2021-06-15 Mediatek Inc. Handling 5G QoS rules on QoS operation errors
CN111869172B (zh) * 2018-09-10 2022-05-20 Oppo广东移动通信有限公司 一种数据传输方法及装置、通信设备
CN110972216B (zh) * 2018-09-30 2022-04-29 华为技术有限公司 通信方法和装置
CN112913280B (zh) * 2018-10-19 2024-06-18 诺基亚通信公司 配置服务质量
EP3878214B1 (en) 2018-11-07 2024-04-03 Telefonaktiebolaget LM Ericsson (publ) Local identifier locator network protocol (ilnp) breakout
US11399308B2 (en) 2018-11-12 2022-07-26 Mediatek Inc. Error handling on missing configuration for inter-system change in mobile communications
US11064450B2 (en) * 2018-11-12 2021-07-13 Mediatek Inc. Synchronization of QoS flows and rules in mobile communications
US11240699B2 (en) * 2018-11-19 2022-02-01 Mediatek Inc. Insufficient resources in the UE during PDU session establishment procedure
CN111314899B (zh) * 2018-12-11 2021-10-26 华为技术有限公司 消息处理方法、相关装置及系统
US11153925B2 (en) * 2019-01-14 2021-10-19 Mediatek Inc. Handling of QoS flow description without valid EPS bearer context
CN111465052B (zh) * 2019-01-18 2023-05-09 中国移动通信有限公司研究院 核心网映射及映射表生成方法、装置、设备及介质
US12376059B2 (en) * 2019-01-25 2025-07-29 Apple Inc. Methods and systems for data transfer over non-access stratum (NAS) control plane for cellular internet of things (CIOT) in a 5G system (5GS)
US11284458B2 (en) * 2019-02-18 2022-03-22 Mediatek Inc. Handling of mapped EPS bearer context with duplicate EPS bearer ID
CN111586860B (zh) * 2019-02-19 2023-01-06 华为技术有限公司 一种通信方法及装置
CN111770468B (zh) * 2019-04-01 2021-12-31 华为技术有限公司 数据处理方法和信息处理装置
WO2020200292A1 (en) * 2019-04-02 2020-10-08 Mediatek Inc. Enhancement of feature support after interworking
US11246054B2 (en) * 2019-04-02 2022-02-08 Mediatek Inc. Interworking between evolved packet system (EPS) session management (ESM) and 5G session management (5GSM)
CN112243300B (zh) * 2019-07-19 2022-11-08 中国移动通信有限公司研究院 连接建立方法及装置
EP3772864A1 (en) 2019-08-05 2021-02-10 Samsung Electronics Co., Ltd. Method and apparatus for improving voice service quality in wireless communication system
KR102785649B1 (ko) * 2019-08-08 2025-03-21 텔레폰악티에볼라겟엘엠에릭슨(펍) 5gs 상호 연동 처리를 위한 방법 및 장치
CN112423314B (zh) 2019-08-21 2022-05-10 华为技术有限公司 通知服务质量信息的方法、设备及系统
CN112449384B (zh) 2019-08-31 2022-05-24 华为技术有限公司 数据处理方法、装置和系统
JP7448279B2 (ja) * 2019-10-31 2024-03-12 日本電気株式会社 無線端末及びその方法
CN112770313A (zh) * 2019-11-04 2021-05-07 中兴通讯股份有限公司 一种支持会话和服务连续性模式选择的方法及装置
CN112788584B (zh) * 2019-11-08 2022-07-29 华为技术有限公司 一种通信方法及装置
CN112788682B (zh) 2019-11-08 2022-08-19 华为技术有限公司 一种通信方法及其装置
WO2021093086A1 (en) * 2019-12-19 2021-05-20 Zte Corporation Communication method for requesting packet data network connection information
US20230018958A1 (en) * 2019-12-25 2023-01-19 Telefonaktiebolaget Lm Ericsson (Publ) Transferring data flows for pdu sessions at 5gs to eps mobility
WO2021177716A2 (ko) * 2020-03-04 2021-09-10 엘지전자 주식회사 멀티캐스트와 관련된 통신
KR102359321B1 (ko) * 2020-08-21 2022-02-07 주식회사 엘지유플러스 Pdu 세션 생성 절차를 수행하는 과정에서 s5-u 트래픽 구간의 발생을 방지하는 방법
US11350319B2 (en) * 2020-08-24 2022-05-31 Cisco Technology, Inc. Optimized quality of service enforcement for handover between different radio access types
GB2612936B (en) * 2020-10-15 2024-07-10 Samsung Electronics Co Ltd Improvements in and relating to Application discovery and event exposure
WO2022098053A1 (ko) * 2020-11-05 2022-05-12 엘지전자 주식회사 Qos 플로우에 관련된 측정
CN116686265A (zh) * 2021-02-08 2023-09-01 华为技术有限公司 用于获取数据的方法和装置
WO2022196837A1 (ko) 2021-03-15 2022-09-22 삼성전자 주식회사 Pfd 관리 절차에서 양방향 필터를 프로비저닝하는 방법 및 장치
EP4307664A4 (en) * 2021-04-09 2024-08-28 Huawei Technologies Co., Ltd. COMMUNICATION METHOD AND DEVICE
CN115484646B (zh) * 2021-06-16 2025-09-12 华为技术有限公司 服务质量流的管理方法和装置
US11902837B2 (en) 2021-07-30 2024-02-13 Samsung Electronics Co., Ltd. Method and apparatus for providing voice service to user equipment in hybrid mobile communication system
CN113905455B (zh) * 2021-11-16 2024-06-25 维沃移动通信有限公司 承载建立方法及装置
US12167289B2 (en) 2022-02-18 2024-12-10 Cisco Technology, Inc. Systems and methods to address call failures in 5G networks due to QOS flow description
JP2024042534A (ja) * 2022-09-15 2024-03-28 トヨタ自動車株式会社 通信システムおよび通信方法
US20240163735A1 (en) * 2022-11-14 2024-05-16 T-Mobile Usa, Inc. Cellular communication session management for user equipment (ues) in idle mode
KR102782371B1 (ko) * 2024-10-21 2025-03-18 프라이빗테크놀로지 주식회사 네트워크 접속을 제어하기 위한 시스템 및 그에 관한 방법
KR102782376B1 (ko) * 2024-11-06 2025-03-18 프라이빗테크놀로지 주식회사 네트워크 접속을 제어하기 위한 시스템 및 그에 관한 방법
KR102782375B1 (ko) * 2024-11-06 2025-03-18 프라이빗테크놀로지 주식회사 네트워크 접속을 제어하기 위한 시스템 및 그에 관한 방법
KR102782374B1 (ko) * 2024-11-06 2025-03-18 프라이빗테크놀로지 주식회사 네트워크 접속을 제어하기 위한 시스템 및 그에 관한 방법
KR102782373B1 (ko) * 2024-11-06 2025-03-18 프라이빗테크놀로지 주식회사 네트워크 접속을 제어하기 위한 시스템 및 그에 관한 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009087120A1 (en) * 2008-01-04 2009-07-16 Nokia Siemens Networks Oy Differentiating ggsn terminated pdp context from pgw terminated eps bearer during inter-rat handovers
CN101640879A (zh) * 2008-08-01 2010-02-03 华为技术有限公司 系统间切换能力信息获取和系统接入的方法、装置及系统
CN105992293A (zh) * 2015-02-09 2016-10-05 电信科学技术研究院 一种进行网络间切换的方法和设备

Family Cites Families (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE293863T1 (de) 2002-01-23 2005-05-15 Sony Int Europe Gmbh Ein verfahren zur übertragung von end-to-end qos durch anwendung des end-to-end negotiation protocols (e2enp)
EP1967031B1 (en) * 2005-12-28 2010-02-17 Panasonic Corporation Method for verifications and fast qos establishment
PL2036382T3 (pl) 2006-06-16 2020-02-28 Nokia Technologies Oy Urządzenie i sposób przesyłania informacji o kontekście protokołu danych pakietowych dla terminala w przypadku przełączania między systemami
US8681683B2 (en) 2007-06-11 2014-03-25 Qualcomm Incorporated Inter-system idle mode mobility
CN101370266B (zh) 2007-08-19 2013-03-20 华为技术有限公司 切换方法、终端重新附着方法
KR101021059B1 (ko) 2007-11-07 2011-03-15 삼성전자주식회사 광대역 무선접속 시스템의 연결 수락 제어 장치 및 방법
JP5138045B2 (ja) * 2007-11-16 2013-02-06 ノキア シーメンス ネットワークス オサケユキチュア システム間ハンドオーバのためのサービス品質のマッピング
CN101478743B (zh) * 2008-01-03 2010-08-25 大唐移动通信设备有限公司 一种eps承载管理的方法和装置
US7940697B2 (en) * 2008-03-17 2011-05-10 Nokia Corporation Transition between IP protocol versions
CN101621788A (zh) 2008-06-30 2010-01-06 华为技术有限公司 一种发送演进分组数据网络系统承载服务质量参数的方法及装置
US8832208B2 (en) * 2008-08-18 2014-09-09 Telefonaktiebolaget L M Ericsson (Publ) Handling of aggregate maximum bit rate by policy and charge control
US9094943B2 (en) 2008-09-19 2015-07-28 Qualcomm Incorporated Network and mobile device initiated quality of service
TW201717672A (zh) * 2009-01-09 2017-05-16 內數位專利控股公司 資廖流移動性
US8498208B2 (en) 2009-07-20 2013-07-30 Qualcomm Incorporated Turning on flows in network initiated QoS
WO2011097814A1 (zh) * 2010-02-11 2011-08-18 华为技术有限公司 消息路由的方法、服务网关和通信系统
US20120198081A1 (en) 2011-01-27 2012-08-02 Qualcomm Incorporated Coexistence of user equipment initiated and network initiated quality of service flows
WO2013025008A1 (en) 2011-08-12 2013-02-21 Lg Electronics Inc. Method for processing data associated with idle mode signaling reduction in a wireless communication system
CN102355744B (zh) * 2011-09-29 2015-07-15 电信科学技术研究院 一种eps承载服务控制方法及mme
CN102438330A (zh) * 2011-12-06 2012-05-02 大唐移动通信设备有限公司 一种附着到e-tran的方法及移动性管理实体
EP2611085B1 (en) 2011-12-30 2018-08-08 Deutsche Telekom AG System and method for providing mobile communication
US9655159B2 (en) 2012-08-31 2017-05-16 Qualcomm Incorporated Managing guaranteed bit rate quality of service resource allocation based on guaranteed bit rate data activity on a link
KR20140035785A (ko) 2012-09-14 2014-03-24 삼성전자주식회사 무선 통신 시스템에서 망 혼잡상황에서 특정 서비스를 제어하는 방법 및 장치
JP5954827B2 (ja) 2012-12-26 2016-07-20 日本電気株式会社 ネットワーク装置
US10039039B2 (en) * 2013-07-02 2018-07-31 Lg Electronics Inc. Method and apparatus for performing handover in wireless communication system
US10863387B2 (en) * 2013-10-02 2020-12-08 Cisco Technology, Inc. System and method for orchestrating policy in a mobile environment
KR20150048611A (ko) 2013-10-28 2015-05-07 삼성전자주식회사 이동성에 강인한 그룹 통신을 위한 방법 및 장치
WO2015160329A1 (en) * 2014-04-15 2015-10-22 Nokia Solutions And Networks Oy Interworking with bearer-based system
KR102170013B1 (ko) 2014-07-14 2020-10-26 콘비다 와이어리스, 엘엘씨 통합된 소형 셀 및 WiFi 게이트웨이를 통한 시스템 간 핸드오버 및 다중 연결성
EP3202214B1 (en) * 2014-10-03 2021-08-25 Intel Corporation Packet data network connection establishment during handover
WO2017082532A1 (ko) * 2015-11-09 2017-05-18 엘지전자 주식회사 방문 네트워크의 사업자 네트워크 식별번호 획득 방법
US10681538B2 (en) * 2016-02-11 2020-06-09 Lg Electronics Inc. Method and apparatus for transmitting and receiving data by terminal in wireless communication system
US10257078B2 (en) 2016-04-01 2019-04-09 Qualcomm Incorporated Interworking with legacy radio access technologies for connectivity to next generation core network
CN111107588B (zh) 2016-05-30 2021-03-05 华为技术有限公司 无线通信的方法、核心网实体和用户设备
WO2018006017A1 (en) * 2016-07-01 2018-01-04 Idac Holdings, Inc. Methods for supporting session continuity on per-session basis
CN113194479B (zh) * 2016-08-10 2025-01-03 日本电气株式会社 无线电接入网络节点、无线电终端、核心网络节点及方法
CN109565732B (zh) * 2016-08-10 2021-10-22 日本电气株式会社 无线接入网节点、无线终端、核心网节点及其方法
WO2018075828A1 (en) * 2016-10-19 2018-04-26 Convida Wireless, Llc Apparatus
CN111885642B (zh) 2016-11-02 2022-06-10 中兴通讯股份有限公司 切换方法及装置
US11582654B2 (en) * 2016-11-04 2023-02-14 Telefonaktiebolaget Lm Ericsson (Publ) Systems and methods of handing over a wireless device
CN109997407B (zh) * 2016-11-29 2023-05-26 Lg电子株式会社 使用ps数据关闭功能的方法和用户设备
KR102155338B1 (ko) * 2017-01-05 2020-09-11 엘지전자 주식회사 Qos 플로우 대 drb 맵핑에 대한 규칙을 전송하는 방법 및 장치
US10299173B2 (en) 2017-01-05 2019-05-21 Htc Corporation Device and method of handling a PDN connection in LTE to NR/5G inter-system mobility
US10681597B2 (en) * 2017-01-05 2020-06-09 Htc Corporation Device and method for handling a packet flow in inter-system mobility
CN110248382B (zh) 2017-01-05 2020-09-08 华为技术有限公司 信息传输的方法和装置
KR102324521B1 (ko) 2017-01-06 2021-11-09 후아웨이 테크놀러지 컴퍼니 리미티드 네트워크 핸드오버 방법 및 관련 디바이스
CN108282832B (zh) 2017-01-06 2021-11-30 北京三星通信技术研究有限公司 无线接入网切换方法、基站和基站的通信方法
CN113905423B (zh) 2017-01-06 2024-04-05 北京三星通信技术研究有限公司 无线接入网切换方法、基站和基站的通信方法
WO2018128528A1 (ko) * 2017-01-09 2018-07-12 엘지전자(주) 무선 통신 시스템에서 pdu 세션 관리 방법 및 이를 위한 장치
EP3566413B1 (en) * 2017-01-09 2022-09-14 IDAC Holdings, Inc. Quality of service management for interworking between different communication architectures
US20190357295A1 (en) * 2017-02-10 2019-11-21 Lg Electronics Inc. Method for transmitting and receiving nas message in wireless communication system and apparatus for same
WO2018195829A1 (zh) 2017-04-26 2018-11-01 华为技术有限公司 重定向的方法、控制面网元、聚合用户面网元、内容服务器和终端设备
EP3471457B1 (en) * 2017-04-28 2021-03-10 LG Electronics Inc. -1- Method for transmitting data according to edt
US11445420B2 (en) 2017-05-02 2022-09-13 Ntt Docomo, Inc. User device, radio communication system, and radio communication method
ES2908270T3 (es) * 2017-05-08 2022-04-28 Huawei Tech Co Ltd Método y dispositivo para movimiento entre sistemas de comunicación
WO2018228137A1 (zh) * 2017-06-15 2018-12-20 电信科学技术研究院有限公司 一种数据中转方法、装置、网络功能实体及smf实体
CN109548093B (zh) 2017-08-02 2021-02-12 中兴通讯股份有限公司 网络切换的方法、装置及系统
US11463929B2 (en) 2017-09-28 2022-10-04 Lg Electronics Inc. Method for transmitting and receiving signal related to handover from 5GS to EPS in wireless communication system and device therefor
WO2019071496A1 (zh) 2017-10-11 2019-04-18 Oppo广东移动通信有限公司 网络切换之后返回的方法、接入网设备和核心网设备
WO2019077011A1 (en) 2017-10-17 2019-04-25 Telefonaktiebolaget Lm Ericsson (Publ) PDN AND PDU SESSION TYPE MAPPING, AND DISCOVERING CAPACITY
CN111491340B (zh) 2019-01-29 2021-11-02 大唐移动通信设备有限公司 一种通信系统切换方法、网络侧设备、装置和介质

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009087120A1 (en) * 2008-01-04 2009-07-16 Nokia Siemens Networks Oy Differentiating ggsn terminated pdp context from pgw terminated eps bearer during inter-rat handovers
CN101640879A (zh) * 2008-08-01 2010-02-03 华为技术有限公司 系统间切换能力信息获取和系统接入的方法、装置及系统
CN105992293A (zh) * 2015-02-09 2016-10-05 电信科学技术研究院 一种进行网络间切换的方法和设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Procedures for the 5G System; Stage 2 (Release 15)", 3GPP TS 23. 502 V0. 3. 0. 3RD GENERATION PARTNERSHIP PROJECT, 20 April 2017 (2017-04-20), pages 1 - 115, XP055551217 *
HUAWEI ET AL.: "Inter-RAT mobility for inactive UE", 3GPP TSG-RAN WG2 #98 R2-1704880, 6 May 2017 (2017-05-06), XP051264620 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111182580A (zh) * 2018-11-16 2020-05-19 维沃移动通信有限公司 业务传输方法、终端和网络侧设备
CN111182580B (zh) * 2018-11-16 2023-02-24 维沃移动通信有限公司 业务传输方法、终端和网络侧设备
CN109451534A (zh) * 2018-12-17 2019-03-08 东南大学 一种用于5G系统会话管理中QoS流的动态控制方法和装置
CN113661776A (zh) * 2019-03-29 2021-11-16 瑞典爱立信有限公司 用于在通信系统中同步QoS流的状态的方法、装置

Also Published As

Publication number Publication date
EP4250868A3 (en) 2023-11-01
JP7725534B2 (ja) 2025-08-19
CN111465063A (zh) 2020-07-28
AU2021204507B2 (en) 2022-08-04
KR102288839B1 (ko) 2021-08-10
US11051224B2 (en) 2021-06-29
KR20190140078A (ko) 2019-12-18
CN111465063B (zh) 2024-05-17
US20200077315A1 (en) 2020-03-05
US20240334285A1 (en) 2024-10-03
CA3062906C (en) 2023-04-11
CA3062906A1 (en) 2019-11-29
EP4250868A2 (en) 2023-09-27
ES2950369T3 (es) 2023-10-09
AU2021204507A1 (en) 2021-07-29
CN111163495B (zh) 2021-04-09
AU2017413894A1 (en) 2019-12-05
CN108513726B (zh) 2020-02-14
AU2017413894B2 (en) 2021-04-01
EP3621354B1 (en) 2022-01-19
CN111465062B (zh) 2025-09-19
JP2020519206A (ja) 2020-06-25
US12114219B2 (en) 2024-10-08
US20210360501A1 (en) 2021-11-18
EP3952449B1 (en) 2023-04-19
KR20210099213A (ko) 2021-08-11
EP4642153A2 (en) 2025-10-29
JP7021257B2 (ja) 2022-02-16
EP3621354A1 (en) 2020-03-11
KR20210149888A (ko) 2021-12-09
JP2023168341A (ja) 2023-11-24
EP3621354A4 (en) 2020-05-20
KR102500723B1 (ko) 2023-02-16
CN111465062A (zh) 2020-07-28
JP2022070887A (ja) 2022-05-13
ES2908270T3 (es) 2022-04-28
KR102334728B1 (ko) 2021-12-02
EP3952449A1 (en) 2022-02-09
CN111163495A (zh) 2020-05-15
CN108513726A (zh) 2018-09-07

Similar Documents

Publication Publication Date Title
JP7725534B2 (ja) 通信システム間を移動するための方法および装置
US12356491B2 (en) Session management method, apparatus, and system
WO2022033558A1 (zh) 一种中继管理方法及通信装置
CN114731723A (zh) 一种通信方法及装置
WO2020063316A1 (zh) 通信方法和装置
CN114503649B (zh) 通信方法和通信装置
WO2023220998A1 (zh) 无线通信的方法、用户设备及网络设备
CN114071799B (zh) 管理会话连接的方法和装置
WO2024040411A1 (zh) 一种实现多接入的方法及其装置
KR20220163439A (ko) 네트워크 요청 등록 절차 개시
CN120017718A (zh) 一种通信方法及装置
WO2022061916A1 (zh) 一种通信方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17909293

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019561240

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 3062906

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2017413894

Country of ref document: AU

Date of ref document: 20170616

Kind code of ref document: A

Ref document number: 20197036076

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2017909293

Country of ref document: EP

Effective date: 20191206