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WO2018167254A1 - Plages uniques de marquage qos pour smf dans un réseau de communication 5g - Google Patents

Plages uniques de marquage qos pour smf dans un réseau de communication 5g Download PDF

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Publication number
WO2018167254A1
WO2018167254A1 PCT/EP2018/056625 EP2018056625W WO2018167254A1 WO 2018167254 A1 WO2018167254 A1 WO 2018167254A1 EP 2018056625 W EP2018056625 W EP 2018056625W WO 2018167254 A1 WO2018167254 A1 WO 2018167254A1
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WO
WIPO (PCT)
Prior art keywords
smf
range
upf
network
qos
Prior art date
Application number
PCT/EP2018/056625
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English (en)
Inventor
Paul Schliwa-Bertling
Stefan Rommer
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Telefonaktiebolaget Lm Ericsson (Publ)
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Publication of WO2018167254A1 publication Critical patent/WO2018167254A1/fr

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Classifications

    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
    • H04L47/2433—Allocation of priorities to traffic types
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/31—Flow control; Congestion control by tagging of packets, e.g. using discard eligibility [DE] bits
    • 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

Definitions

  • Embodiments herein relate generally to a Session Management Function (SMF) and a method performed by the SMF. More particularly the embodiments herein relate to handling marking of data traffic in a Fifth Generation (5G) communications network.
  • SMF Session Management Function
  • 5G Fifth Generation
  • NR New Radio
  • UMTS Universal Mobile Telecommunications System
  • G- UTRA Next Generation Packet Core Network
  • NG-CN Next Generation Packet Core Network
  • the 5G System architecture is defined to support data connectivity and services enabling deployments to use techniques such as e.g. Network Function Virtualization and Software Defined Networking.
  • the 5G System architecture shall leverage service-based interactions between Control Plane (CP)
  • the 5G system architecture consists of the Network Functions (NF). Below is a list of some of these NFs:
  • DN Data network
  • operator services e.g. operator services, Internet access or 3rd party services
  • SDSF Structured Data Storage network function
  • PCF Policy Control function
  • SMF Session Management Function
  • MM Mobility Management
  • SMF Session Management
  • the SMF has an interface to the UPF and is in charge of controlling the UPF, e.g. instructing the UPF on tunnel endpoints, enforcements rules for maximum bitrate, charging control rules etc.
  • the SMF comprises at least one of the following functionality:
  • Session Management e.g. Session establishment, modify and release, including tunnel maintain between UPF and AN node.
  • NAS Non-access stratum
  • IP Internet Protocol
  • PDU Protocol Data Unit
  • the UPF comprises at least one of the following functionality:
  • Uplink classifier to support routing traffic flows to a data network.
  • QoS handling for user plane e.g. packet filtering, gating, Uplink/Downlink (UL/DL) rate enforcement.
  • a UE When a UE is roaming in a visited network (e.g. Visited Public Land Mobile Network (VPLMN)), the roaming can be either home-routed roaming or visited access. Visited access can also be called Local Breakout (LBO).
  • LBO Local Breakout
  • the UE In home-routed roaming, the UE can access the visited network through a gateway in the home network (e.g. Home Public Land Mobile Network (HPLMN)) and obtain services provided by its home network.
  • HPLMN Home Public Land Mobile Network
  • the UE connects via a gateway in the visited network and the traffic is transmitted between the UE and the home network without going via a gateway in the home network.
  • a VPLMN may be described as that PLMN on which the mobile subscriber has roamed when leaving its HPLMN, the PLMN which is visited by the UE.
  • a HPLMN is the home network of the UE, the network in which the UE subscribers profile is stored. For example, when the UE roams to a visited network, subscription information will be provide from the home network.
  • FIG. 1 A roaming 5G System architecture for the home routed scenario is shown in Figure 1.
  • the VPLMN is illustrated on the left side of the dotted vertical center line and the HPLMN is illustrated on the right side of the dotted vertical center line.
  • the UE is roaming in the VPLMN.
  • the v- SMF is comprised in the VPLMN and the h-SMF is comprised in the HPLMN.
  • Figure 1 also illustrates that there is one PCF in each of the HPLMN and VPLMN, i.e. a vPCF in the VPLMN and a hPCF in the HPLMN.
  • 5G CN Fifth Generation Core Network
  • 5GCN Fifth Generation Core Network
  • IP Internet Protocol
  • I Pv6 multihoming the common feature is that some traffic of a PDU Session can be broken out to a Data Network at one place (e.g. close to the access site), while other traffic of the PDU Session is forwarded to a Data Network at a different place (e.g. in a more central location).
  • the architecture for the non-roaming case is shown in Figure 2.
  • the example architecture applying non-roaming 5G System architecture in figure 2 is for concurrent access to two (e.g.
  • FIG 3 illustrates an example roaming architecture with concurrent access to two (e.g. localA PLMN and central/HPLMN) data networks using a single PDU session.
  • the VPLMN is illustrated on the left side of the dotted vertical center line and the HPLMN is illustrated on the right side of the dotted vertical center line. The UE is roaming in the VPLMN.
  • FIG 3 there is one SMF and one UPF in each of the VPLMN and HPLMN.
  • the v- SMF is comprised in the VPLMN and the h-SMF is comprised in the HPLMN.
  • Figure 3 also illustrates that there is one PCF in each of the HPLMN and VPLMN, i.e. a vPCF in the VPLMN and a hPCF in the HPLMN.
  • One difference between the home-routed scenarios in figures 1 and 3 is that there is only one DN in figure 1 and two DNs in figure 3.
  • there may be scenarios also for the non-roaming case where it may be forced to use two SMFs in the serving network. This may e.g.
  • the 5G QoS model supports QoS flow based framework, and it supports both QoS flows that require guaranteed flow bit rate and QoS flows that do not require guaranteed flow bit rate.
  • Each QoS flow (GBR and Non-GBR) may be associated with at least one of the following QoS parameters:
  • Each GBR QoS flow is in addition associated with at least one of the following QoS parameters:
  • the 5G QoS model is different from the EPC model. Instead of using separate General Packet Radio Services Tunneling Protocol-User Plane (GTP-U) tunnels per QoS class for the use plane, there will be a single tunnel for the PDU Session with packet markings per QoS class in the encapsulation header of each packet of that tunnel.
  • the QoS profile for a certain traffic e.g. IP flow
  • IP flow the actual value of the packet marking is determined by the SMF. In some cases, it may not be the SMF who decides on the packet marking values. Possibly another Network Function (e.g. PCF) could decide the marking and provide information about the decided marking to the SMF(s).
  • PCF Network Function
  • a QoS class may also be referred to as a traffic class.
  • the SMF then instructs the UPF for how certain traffic (e.g. described by I P filters) should be marked.
  • certain traffic e.g. described by I P filters
  • this marking is used by the (radio) access network to determine what QoS treatment to apply to a packet.
  • each SMF is responsible for determining the packet marking value for a subset of the traffic.
  • the v-SFM / intermediate- SMF is determining the packet marking value for traffic that is received from the local DN while the h-SMF / anchor-SMF is determining the packet marking value for traffic that is received from the more central DN. This may result in that the same packet marking value is used for traffic belonging to different QoS classes and it is not possible for (R)AN to distinguish between the two in down-link traffic.
  • an objective of embodiments herein is therefore to obviate at least one of the above disadvantages and to provide improved handling of packet marking in 5G.
  • the object is achieved by a method in performed by a first SMF for handling marking of data traffic in a 5G communications network.
  • the first SMF obtains a first range of QoS marking values which is only available for use by the first SMF.
  • the first range is different from a second range of QoS marking values which is only available for use by a second SMF.
  • the object is achieved by a first SMF for handling marking of data traffic in a 5G communications network.
  • the first SMF is configured to obtain a first range of QoS marking values which is only available for use by the first SMF.
  • the first range is different from a second range of QoS marking values which is only available for use by a second SMF.
  • One advantage of the embodiments herein is that QoS packet marking is possible when there are multiple NFs (e.g. SMFs) controlling the QoS marking for a single PDU Session.
  • NFs e.g. SMFs
  • Fig. 1 is a schematic block diagram illustrating embodiments of a roaming 5G
  • Fig. 2 is a schematic block diagram illustrating an example architecture applying non-roaming 5G System architecture for concurrent access to two (e.g. local and central) data networks using a single PDU session.
  • Fig. 3 is a schematic block diagram illustrating an example roaming architecture with concurrent access to two (e.g. localA PLMN and central/HPLMN) data networks using a single PDU session.
  • two e.g. localA PLMN and central/HPLMN
  • Fig. 4 is a schematic block diagram illustrating an example non-roaming
  • FIG. 5 is a schematic block diagram illustrating embodiments of a communications system.
  • Fig. 6 is a signaling diagram illustrating embodiments of a method.
  • Fig. 7 is a signaling diagram illustrating embodiments of a method.
  • Fig. 8 is a signaling diagram illustrating embodiments of a method.
  • Fig. 9 is a signaling diagram illustrating embodiments of a UE-requested PDU
  • Fig. 10 is a flow chart illustrating embodiments of a method performed by a first
  • Fig. 1 1 is a schematic block diagram illustrating embodiments of a first SMF.
  • QoS may be related to parameters such as throughput, errors, delay, bitrate, packet drop etc. in a communications system 100.
  • Figure 5 depicts a communications system 100 in which embodiments herein may be implemented.
  • the entities illustrated in figure 5 may be nodes, units, modules, functions etc.
  • a UE 101 is served by the (R)AN 103, and is in this case capable of communicating with the (R)AN 103 over a communications link.
  • the UE 101 may be referred to as a 5G UE, a 5G capable UE, a 5G compatible UE, a Next Generation (NextGen) UE etc.
  • NextGen Next Generation
  • a NextGen UE 101 can be described as a UE 101 connecting to a NextGen system.
  • the UE 101 may be a device by which a subscriber may access services offered by an operator's network and services outside operator's network to which the operators radio access network and core network provide access, e.g. access to the Internet.
  • the device may be any device, mobile or stationary, enabled to communicate in the communications network, for instance but not limited to e.g. user equipment, mobile phone, smart phone, sensors, meters, vehicles, household appliances, medical appliances, media players, cameras, Machine to Machine (M2M) device, Device to Device (D2D) device, Internet of Things (loT) device or any type of consumer electronic, for instance but not limited to television, radio, lighting arrangements, tablet computer, laptop or Personal Computer (PC).
  • M2M Machine to Machine
  • D2D Device to Device
  • LoT Internet of Things
  • the UE 101 may be portable, pocket storable, hand held, computer comprised, or vehicle mounted devices, enabled to communicate voice and/or data, via the radio access network, with another entity, such as another UE or a server.
  • the system 100 illustrated in figure 5 also shows several other nodes or functions, and at least one of them may be seen as being comprised in a Core Network (CN). These nodes or function may therefore be referred to as CN nodes or CN function.
  • CN nodes or CN function Such core network may be for example a NextGen Core Network (NGCN), and then the CN nodes or functions may be referred to as NGCN nodes, NGCN functions, 5GCN nodes, or 5GCN functions.
  • Examples of such CN nodes or function illustrated in figure 5 are a first UPF 105a, a second UPF 105b, a first SMF 108a, a second SMF 108b.
  • network functions 113 such as e.g. one or more PCFs.
  • Network Function is defined by the 3GPP as "A 3GPP adopted or 3GPP defined
  • a network function can be implemented either as a network element on a dedicated hardware, as a software instance running on a dedicated hardware, or as a virtualised function instantiated on an appropriate platform, e.g. on a cloud
  • the system 100 also illustrates a data network 110.
  • Example of a data network 100 is operator services, Internet access or 3rd party services.
  • the UE 101 is connected to the (R)AN 103.
  • the (R)AN 103 is connected to the UE 101 and the second UPF 105b.
  • the second UPF 105b is connected to the (R)AN 103, the first UPF 105a and to the second SMF 108b.
  • the first UPF 105a is connected to the second UPF 105b, the first SMF 108a and the data network 1 10.
  • the first SMF 108a is connected to the first UPF 105a and the other network function 1 13.
  • the other network function 1 13 is connected to the first SMF 108a.
  • the data network 1 10 is connected to the first UPF 105a.
  • the communication links in the communications system 100 in figure 5 may be of any suitable kind including either a wired or wireless link.
  • the link may use any suitable protocol depending on type and level of layer (e.g. as indicated by the
  • the illustrated units may be referred to as first UP node, second UP node, first SM node, second SM node and other network node.
  • the system 100 illustrated in figure 5 may comprise additional nodes and functions which are not illustrated in figure 5. Examples of such nodes and functions are found in e.g. figures 1 -4.
  • the first and second ranges are determined by the first SMF (pre-defined or configured).
  • the first SMF transmits the second range to the second SMF.
  • the first range is determined by the first SMF.
  • the first SMF transmits the first range to the second SMF.
  • the second SMF determines the second range based on information about the first range.
  • the first and second ranges are determined by the other network function.
  • the other network function transmits the ranges to the first SMF.
  • the first SMF transmits the second range to the second SMF.
  • the first range is determined by the other network function.
  • the other network function transmits the first range to the first SMF.
  • the first SMF transmits the first range to the second SMF.
  • the second SMF determines the second range based on information about the first range.
  • a QoS profile may be pre-defined, configured or determined by the other network function 1 13 and transmitted to the first SMF 108a.
  • the first SMF 108a receives the QoS profile from the other network function 1 13.
  • the QoS profile may also be transmitted from the other network function 1 13 to the second SMF 108a, and the second SMF 108b may receive the QoS profile from the other network function 1 13.
  • Step 202 This is an optional step.
  • the first range of QoS marking values may be pre-defined, configured or determined by the other network function 1 13 and transmitted to the first SMF 108a.
  • the first SMF 108a receives the first range from the other network function 1 13.
  • the first range may be for one or more QoS profile or QoS classes, or for any QoS profile or QoS class.
  • QoS packet marking may be used to assign packets to a QoS group, and the QoS group may be used to determine how to prioritize transmission of the packets.
  • the second range of QoS marking values may be pre-defined, configured or determined by the other network function 1 13 and transmitted to the second SMF 108b.
  • the second SMF 108b receives the second range from the other network function 1 13.
  • the QoS profile and/or the first range is pre-defined or configured in the first SMF 108a.
  • the QoS profile and/or the second range is pre-defined or configured in the second SMF 108b.
  • the first SMF 108a obtains the first range of QoS marking values which is only available for use by the first SMF 108a.
  • the first range is different from a second range of QoS marking values which is only available for use by a second SMF 108b.
  • the obtaining may be done by any of the optional step 201-205 described above.
  • the first range is different from the second range in that none of the values in the first range is comprised in the second range, i.e. the first and second ranges are not overlapping.
  • the first range may be OOxxxxxx and the second range may be Ol xxxxxx, where xxxxxx indicates the bits available for use by a specific SMF.
  • the first range may be 0-100 and the second range may be 101 -200, or any other suitable range.
  • the first SMF 108a may determine at least a first QoS value for the first range.
  • the first QoS value in the first range may be applied on a subset of data traffic received from a data network 1 10.
  • the first SMF 108a may transmit instructions to the first UPF 105a that the subset of data traffic should be marked using the first QoS marking value of the first range
  • the first UPF 105a may receive the instructions from the first SMF 108a.
  • the first range may be OOxxxxxx and the second range may be Ol xxxxxx, where xxxxxx indicates the bits available for use by a specific SMF.
  • the second SMF 108b may determine at least a second QoS value for the second range.
  • the second QoS value in the second range may be applied on a subset of data traffic received from a data network 1 10.
  • the second SMF 108b may transmit instructions to the second UPF 105b that the subset of data traffic should be marked using the second QoS marking value of the second range.
  • the second UPF 105b may receive the instructions from the second SMF 108b.
  • a QoS profile may be pre-defined, configured or determined by each of the first and second SMFs 108a, 108b.
  • the first SMF 108a obtains the first range of QoS marking values which is only available for use by the first SMF 108a.
  • the first range is different from a second range of QoS marking values which is only available for use by a second SMF 108b.
  • the first range may be OOxxxxxx and the second range may be Ol xxxxxx, where xxxxxx indicates the bits available for use by a specific SMF.
  • the first range may be for a QoS profile, and the QoS profile may be obtained as described in any of steps 301-302. Step 304
  • the first SMF 108a may determine at least a first QoS value for the first range.
  • the first QoS value in the first range may be applied on a subset of data traffic received from a data network 1 10.
  • the first SMF 108a may transmit the first range to the second SMF 108b.
  • the second SMF 108b may receive the first range from the first SMF 108a.
  • the first SMF 108a may transmit instructions to the first UPF 105a that the subset of data traffic should be marked using the first QoS marking value of the first range
  • the first UPF 105a may receive the instructions from the first SMF 108a.
  • the second SMF 108b may obtain the second range based on the information about the first range received in step 305.
  • the second range is different from a first range which is only available for use by a first SMF 108a.
  • the second SMF 108b may determine at least a second QoS value for the second range.
  • the second QoS value in the second range may be applied on a subset of data traffic received from a data network 1 10.
  • the second SMF 108b may transmit instructions to the second UPF 105b that the subset of data traffic should be marked using the second QoS marking value of the second range.
  • the second UPF 105b may receive the instructions from the second SMF 108b.
  • the method for handling marking of data traffic in a 5G communications network when there are two SMFs in the communications system 100, according to alternative 2 will now be described with reference to the signalling diagram in Figure 8.
  • the dotted arrows and boxes represent optional steps and the continuous lines and boxes represent mandatory steps.
  • One difference between the methods in figures 7 and 8 is that the first range is obtained by the first SMF 108a and the second range is obtained by the second SMF 108b in figure 7, and the first and second ranges are both obtained by the first SMF 108a in figure 8.
  • Step 401 The method comprises the following steps, which steps may as well be carried out in another suitable order than described below: Step 401
  • a QoS profile may be pre-defined, configured or determined by the other network function 1 13 and transmitted to the first SMF 108a.
  • the first SMF 108a receives the QoS profile from the other network function 1 13.
  • the QoS profile may also be transmitted from the other network function 1 13 to the second SMF 108a, and the second SMF 108b may receive the QoS profile from the other network function 1 13.
  • a QoS profile may be pre-defined, configured or determined by each of the first and second SMFs 108a, 108b.
  • the first SMF 108a obtains the first range of QoS marking values which is only available for use by the first SMF 108a and the second range of QoS marking values which is only available for use by the second SMF 108b.
  • the first range is different from a second range of QoS marking values which is only available for use by a second SMF 108b.
  • the first range may be OOxxxxxx and the second range may be Ol xxxxxx, where xxxxxx indicates the bits available for use by a specific SMF.
  • the first range and the second range may be for a QoS profile, and the QoS profile may be obtained as described in any of steps 401 -402. Step 404
  • the first SMF 108a may determine at least a first QoS value for the first range.
  • the first QoS value in the first range may be applied on a subset of data traffic received from a data network 1 10.
  • the first SMF 108a may transmit the second range to the second SMF 108b.
  • the second SMF 108b may receive the second range from the first SMF 108a.
  • the first SMF 108a may transmit the first QoS value for the first range to the first UPF 105a.
  • the first UPF 105a may receive the first QoS value from the first SMF 108a.
  • the second SMF 108a may determine at least a second QoS value for the second range.
  • the second QoS value in the second range may be applied on a subset of data traffic received from a data network 1 10.
  • the second SMF 108b may transmit the second QoS value for the second range to the second UPF 105b.
  • the second UPF 105b may receive the second QoS value from the second SMF 108b.
  • FIG. 9 Another example for Alternative 2 is illustrated in Figure 9.
  • the first SMF 108a is represented by a hSMF and the second SMF 108b is represented by a vSMF.
  • Steps 1-12 Same as in TS 23.502, vO.2.01.1
  • Step 913 The hSMF 108a indicates a certain range of QoS markings to the v-SMF 108b. This range can then be used by vSMF 108b in future procedures where QoS marking is needed.
  • Steps 14-12 Same as in TS 23.502, vO.2.01 .1
  • QoS marking values could also be provided in other procedures (e.g. PDU Session Modification procedure).
  • v-SMF 108b it is also possible for v-SMF 108b to provide a range of QoS marking values to h- SMF 108a in step 3 in figure 9.
  • the notification about QoS marking range can also be provided separately from the PDU Session Establishment procedure, e.g. in case the h-SMF provides information to the v-SMF 108b that breakout of traffic locally is allowed.
  • a PDU Session is defined by the 3GPP as "Association between the UE and a Data Network that provides a PDU connectivity service. The type of association can be IP, Ethernet or unstructured.” The method described above will now be described seen from the perspective of the first SMF 108a. The method comprises at least one of the following steps to be performed by the first SMF 108a:
  • the first SMF 108a obtains a first range of QoS marking values which is only available for use by the first SMF 108a.
  • the first range is different from a second range of QoS marking values which is only available for use by a second SMF 108b.
  • the first range may be obtained (steps 202, 302) from another network function 1 13, or the first range may be pre-defined (steps 204, 303) in the first SMF 108a, or the first range may be obtained (steps 204, 303) via configuration of the first SMF 108a.
  • the obtaining of the first range may be triggered by detecting the presence of the second SMF 108b, or by detecting that the second SMF 108b supports breakout of selective traffic of a single PDU session.
  • the first range may be determined (steps 201 , 202, 301 , 302, 401 , 402) by another network function 1 13 and then sent (steps 201 , 202) to the first SMF 108a.
  • the first SMF 108a then obtains the first range by receiving it from the other network function 1 13.
  • the first range may be determined (steps 206, 304, 404) by the first SMF 108a.
  • the first SMF 108a then obtains the first range by determining itself.
  • the first SMF 108a may determine at least one first QoS marking value in the first range to be applied on a subset of data traffic received from a data network 1 10. Step 1003
  • the first SMF 107a may send instructions to the first UPF 105a that the subset of data traffic should be marked using the first QoS marking value
  • the first SMF 108a may provide the second SMF 108b with information about the first range which is only available for use by the first SMF 108a and not by the second SMF 108b.
  • the second SMF 108b may be provided with information about the first range in a Create PDU Session Response message or in a PDU Session modification message transmitted from the first SMF 108a to the second SMF 108b.
  • the information may be provided to the second SMF for example by transmitting the information from the first SMF to the second SMF, or by that the first SMF 108a stores the information in a memory from which the second SMF 108b can retrieve the information.
  • the first SMF 108a may obtain the second range which is only available for use by the second SMF 108b.
  • the second range may be obtained (step 402) from another network function 1 13, or the second range may be pre-defined (step 403) in the first SMF 108a, or the second range may be obtained via configuration (step 403) of the first SMF 108a.
  • the first SMF 108a may provide the second SMF 108b with information about the second range.
  • the second SMF 108b may be provided with information about the second range in a
  • the information may be provided to the second SMF for example by transmitting the information from the first SMF to the second SMF, or by that the first SMF 108a stores the information in a memory from which the second SMF 108b can retrieve the information.
  • the first SMF 108a may be a home SMF located in the hPLMN of the UE 101 and the second SMF 108b is a visited SMF located in the vPLMN which is visited by the UE 101 when the UE 101 is roaming.
  • the first UPF 105a may be a home UPF is located in the home PLMN and the second UPF 105b may be a visited UPF is located in the visited
  • the first SMF 108a may be an anchor SMF
  • the second SMF 108b may be an anchor SMF
  • the first UPF 105a may be an anchor UPF and the second UPF 105b may be an intermediate UPF. All functions may be are located in the serving network which serves the UE 101.
  • the first SMF 108a may be a central SMF
  • the second SMF 108b may be a local SMF
  • the first UPF 105a may be a central UPF
  • the second UPF 105b may be a local UPF.
  • All functions may be located in the serving network which serves the UE 101 .
  • the data traffic may be downlink data traffic.
  • the other network function may be for example a PCF, NEF or UDM.
  • the first SMF may comprises an
  • the first SMF 108a is configured to, e.g. by means of an obtaining module 1101 , obtain a first range of QoS marking values which is only available for use by the first SMF 108a.
  • the first range is different from a second range of QoS marking values which is only available for use by a second SMF 108b.
  • the obtaining module 1 101 may also be referred to as an obtaining unit, an obtaining means, an obtaining circuit, means for obtaining etc.
  • the obtaining module 1 101 may be a processor 1103 of the first SMF 108a.
  • the first SMF 108a may be configured to, e.g. by means of a determining module 1105, determine at least one first QoS marking value in the first range to be applied on a subset of data traffic received from a data network 1 10.
  • the determining module 1 105 may also be referred to as a determining unit, a determining means, a determining circuit, means for determining etc.
  • the determining module 1 105 may be the processor 1 103 of the first SMF 108a.
  • the first SMF 108a may be configured to, e.g. by means of a sending module 1108, send instructions to the first UPF that the subset of data traffic should be marked using the first QoS marking value.
  • the sending module 1 108 may also be referred to as a sending unit, a sending means, a sending circuit, means for sending, output unit etc.
  • the sending module 1 108 may be a transmitter, a transceiver etc.
  • the sending module 1 108 may be a wireless transmitter of the first SMF 108a of a wireless or fixed communications system.
  • the first SMF 108a may be configured to, e.g. by means of a providing module 1109, provide the second SMF 108b with information about the first range which is only available for use by the first SMF 108a and not by the second SMF 108b.
  • the providing module 1 109 may also be referred to as a providing unit, a providing means, a providing circuit, means for providing etc.
  • the providing module 1 109 may be the processor 1 103 of the first SMF 108a.
  • the second SMF 108b may be provided with information about the first range in a Create PDU Session Response message or in a PDU Session modification message transmitted from the first SMF 108a to the second SMF 108b.
  • the information may be provided to the second SMF for example by transmitting the information from the first SMF to the second SMF, or by that the first SMF 108a stores the information in a memory from which the second SMF 108b can retrieve the information.
  • the first SMF 108a may be further configured to, e.g. by means of the obtaining module 1 101 , obtain the second range which is only available for use by the second SMF 108b.
  • the first SMF 108a may be further configured to, e.g. by means of the providing module 1 109, provide the second SMF 108b with information about the second range.
  • the second SMF 108b may be provided with information about the second range in a
  • the information may be provided to the second SMF for example by transmitting the information about the second range from the first SMF to the second SMF, or by that the first SMF 108a stores the information in a memory from which the second SMF 108b can retrieve the information.
  • the second range may be obtained from another network function 1 13, or the second range may be pre-defined in the first SMF, or the second range may be obtained via
  • the first range may be obtained from another network function 1 13, or the first range may be pre-defined in the first SMF, or the first range may be obtained via configuration of the first SMF 108a.
  • the obtaining of the first range may be triggered by: detecting, e.g. by means of a
  • the detecting module 1 1 10 may also be referred to as a detecting unit, a detecting means, a detecting circuit, means for detecting etc.
  • the detecting module 1 1 10 may be the processor 1 103 of the first SMF 108a.
  • the first range may be determined by another network function 1 13 and then sent to the first SMF 108a.
  • the first SMF 108a may then be configured to, e.g. by means of a receiving module 1113, receive the first range from the other network function 1 13.
  • the receiving module 1 1 13 may also be referred to as a receiving unit, a receiving means, a receiving circuit, means for receiving, input unit etc.
  • the receiving module 1 1 13 may be a receiver, a transceiver etc.
  • the receiving module 1 1 13 may be a wireless receiver of the first SMF 108a of a wireless or fixed communications system.
  • the first range may be determined by the first SMF 108a, e.g. by means of the determining module 1 105.
  • the first SMF 108a may be a home SMF located in the hPLMN of the UE 101 and the second SMF 108b may be a visited SMF located in the vPLMN which is visited by the UE 101 when the UE 101 is roaming, and the first UPF 105a may be located in the home PLMN and the second UPF 105b may be located in the visited UPF.
  • the first SMF 108a may be an anchor SMF
  • the second SMF 108b may be an intermediate SMF
  • the first UPF 105a may be an anchor UPF
  • the second UPF 105b may be an intermediate UPF
  • all functions may be located in the serving network which serves the UE 101 .
  • the first SMF 108a may be a central SMF
  • the second SMF 108b may be a local SMF
  • the first UPF 105a may be a central UPF
  • the second UPF 105b may be a local UPF
  • all functions may be located in the serving network which serves the UE 101 .
  • the data traffic may be downlink data traffic.
  • the other network function may be a PCF, NEF or UDM.
  • the first SMF 108a may comprises a memory 1115, and the memory 1 1 15 comprises instructions executable by the processor 1 103.
  • the memory 1 15 comprises one or more memory units.
  • the memory 1 1 15 is arranged to be used to store data, received data streams, power level measurements, first range, second range, values, QoS profile, threshold values, time periods, configurations, scheduling, data traffic, and applications to perform the methods herein when being executed in the first SMF 108a.
  • the obtaining module 1 101 , the determining module 1 105, the sending module 1 108, the providing module 1 109, the detecting module 1 1 10 and the receiving module 1 1 13 described above may refer to a combination of analog and digital circuits, and/or one or more processors configured with software and/or firmware, e.g. stored in a memory, that when executed by the one or more processors such as the processor 1 103 perform as described above.
  • processors may be included in a single application-specific integrated circuit (ASIC), or several processors and various digital hardware may be distributed among several separate components, whether individually packaged or assembled into a system-on-a-chip (SoC).
  • ASIC application-specific integrated circuit
  • SoC system-on-a-chip
  • the present mechanism for handling marking of data traffic in a 5G communications network may be implemented through one or more processors, such as a processor 1 103 in the first SMF arrangement depicted in Figure 1 1 , together with computer program code for performing the functions of the embodiments herein.
  • the processor may be for
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-programmable gate array
  • the program code mentioned above may also be provided as a computer program product, for instance in the form of a data carrier carrying computer program code for performing the embodiments herein when being loaded into the first SMF 108a.
  • a data carrier carrying computer program code for performing the embodiments herein when being loaded into the first SMF 108a.
  • One such carrier may be in the form of a CD ROM disc. It is however feasible with other data carriers such as a memory stick.
  • the computer program code can furthermore be provided as pure program code on a server and downloaded to the first SMF 108a.
  • a computer program may comprise instructions which, when
  • a carrier may comprise the computer program, and the carrier is one of an electronic signal, optical signal, radio signal or
  • the 5G CN architecture herein supports breakout of selective traffic of a single PDU session.
  • the embodiments herein are not limited to the above described embodiments. Various alternatives, modifications and equivalents may be used. Therefore, the above

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de l'invention concernent généralement une fonction de gestion de sessions (SMF) et un procédé mis en oeuvre par la SMF. Plus particulièrement, les modes de réalisation de l'invention concernent la gestion du marquage de trafic de données dans un réseau de communication de cinquième génération (5G).
PCT/EP2018/056625 2017-03-16 2018-03-16 Plages uniques de marquage qos pour smf dans un réseau de communication 5g WO2018167254A1 (fr)

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CN111436057A (zh) * 2019-01-15 2020-07-21 华为技术有限公司 一种会话管理方法及装置
CN111586642A (zh) * 2019-02-19 2020-08-25 华为技术有限公司 一种通信方法及装置
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WO2024147621A1 (fr) * 2023-01-06 2024-07-11 엘지전자 주식회사 Communication basée sur un calcul de périphérie
WO2024169729A1 (fr) * 2023-02-14 2024-08-22 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil de gestion de session

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CN111436057A (zh) * 2019-01-15 2020-07-21 华为技术有限公司 一种会话管理方法及装置
CN111436057B (zh) * 2019-01-15 2022-06-28 华为技术有限公司 一种会话管理方法及装置
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CN111586642A (zh) * 2019-02-19 2020-08-25 华为技术有限公司 一种通信方法及装置
CN111586642B (zh) * 2019-02-19 2021-12-14 华为技术有限公司 一种通信方法及装置
WO2021188033A1 (fr) * 2020-03-20 2021-09-23 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et nœud de réseau pour facturation à domicile de trafic délesté sur réseau visité
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WO2023075214A1 (fr) * 2021-10-28 2023-05-04 Samsung Electronics Co., Ltd. Procédé et appareil pour la prise en charge d'un service d'informatique en périphérie pour un équipement utilisateur en itinérance dans un système de communication sans fil
US12262447B2 (en) 2021-10-28 2025-03-25 Samsung Electronics Co., Ltd. Method and apparatus for supporting edge computing service for roaming UE in wireless communication system
WO2024147621A1 (fr) * 2023-01-06 2024-07-11 엘지전자 주식회사 Communication basée sur un calcul de périphérie
WO2024169729A1 (fr) * 2023-02-14 2024-08-22 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil de gestion de session

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