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    • 专利摘要:
    the present invention relates to pdu session management and in particular methods and devices for establishing user plan resources for pdu sessions. this is accomplished in numerous modalities such as methods and devices for an infrastructure node and user equipment node. for example in a method for the protocol data unit, pdu, session management, with reception steps, in an access and mobility management function entity, amf, a registration request message transmitted through a device user, eu, where the registration request message comprises information indicating that one or more pdu sessions request user plan resources, up, and identification of each of the pdu sessions requesting up resources, and in response upon receipt of the registration request message, amf transmits to a session management function, smf, an up resource request message to request that smf establish up resources for at least one of the pdu sessions requesting resources up. the method may further understand in response to receiving the up resource request message, smf triggers an up function relocation.
    公开号:BR112019014110A2
    申请号:R112019014110-3
    申请日:2017-12-15
    公开日:2020-02-27
    发明作者:Schliwa-Bertling Paul；Rommer Stefan；Hedman Peter
    申请人:Telefonaktiebolaget Lm Ericsson (Publ)；
    IPC主号:
    专利说明:

    METHOD FOR PROTOCOL DATA UNIT SESSION MANAGEMENT, ENTITY WITH MOBILITY AND ACCESS MANAGEMENT FUNCTION, AND USER EQUIPMENT
    TECHNICAL FIELD [001] The present invention relates to the session management of
    PDU and in particular the establishment of user plan resources for PDU sessions.
    FUNDAMENTALS [002] In the telecommunications arena, there is a constant evolution in progress in order to provide efficient and reliable solutions for the use of wireless communication networks. Each new generation has its own technical challenges to deal with different situations and processes that are needed to connect and serve devices connected to the wireless network. This is especially true for cellular telecommunications networks.
    [003] Cellular telecommunications networks comprise, at a high level, an access infrastructure and a core infrastructure. The access infrastructure provides radio access for connecting devices and handles the connectivity of those devices. The core infrastructure provides authentication, billing, quality of service (QoS) handling and similar user / device management features. In addition, the core network also provides access to external networks such as, for example, Internet access. It should be noted that connection devices are often denoted by EU user equipment, but the devices do not necessarily require a user, but it can be any type of device that connects to the network, that is, a device capable of communicating without wire with a radio access network node, the UE can, for example, be a smartphone, laptop, PC, utility device, vehicle, a smart sensor, etc. With the advent of the Internet of Things (loT)
    Petition 870190063671, of 07/08/2019, p. 11/63
    2/33 many different types of devices, functions and solutions are being developed involving human interaction or as independent devices that offer different solutions or functions.
    [004] The Third Generation Partnership Project (3GPP) has started work on the development and design of the next generation mobile communications system (also known as the 5G Mobile Communication System or Next Generation System (NG) or simply “ 5G ”or“ NG ”as an abbreviation). 3GPP is currently in the process of specifying the 5G radio interface called New Radio (NR) or “G-UTRA”, as well as a Next Generation Packet Core Network (NG-CN or NGC).
    [005] User equipment (UE) needs to register with a network in order to receive services that request registration. A registration procedure is used in the following situations: (1) when the UE initially registers with a 5G system; (2) when the UE initiates a registration procedure due to mobility, for example, when the UE moves to a new Tracking Area (TA) in idle mode; (3) when the UE performs a periodic update due to the expiration of a predefined period of inactivity, etc.
    [006] During an initial registration an Equipment Identity
    Mobile (ME) is obtained from the UE. An operator of the Access and Mobility Management (AMF) role can verify the ME Identity with an EIR. The AMF then passes the ME Identity (IMEISV) to a Unified Data Management (UDM), a Session Management function (SMF) and a Policy Control function (PCF). AMF is also known as the Mobility Management (MMF) function, therefore AMF and MMF are equivalent.
    SUMMARY [007] When registering user equipment, UE, on a Network
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    3/33 Core 5G (CN) is not possible for the Access and Mobility Management function, AMF, to know how to adjust or initiate the user plan (UP) resources requested for a particular Protocol Data Unit, PDU session , in which the UE has UP data to transmit. The present invention addresses this problem.
    [008] For example, in one mode, the UE includes information in a registration request message (for example, Connection Request message, Tracking Area Update (TAU), Registration Request or similar) about which the (s) PDU session (s) requests UP resources (for example, Data Radio Carriers (DBRs) on a radio interface and related UP tunnels between network functions on the network). The AMF receives the registration request message transmitted through the UE that includes information regarding what the PDU session (s) request from the UP resources. The AMF requests the establishment of UP resources, according to information regarding what the PDU session (s) request from UP resources in the registration request message transmitted through the UE. In response to the request for the establishment of UP resources, a Radio Access Network (RAN) and SMF (s) allocate UP resources accordingly.
    [009] The present invention is carried out in a number of modalities, for example, in a method for the session management of Protocol Data Unit, PDU, with steps of receiving, in an entity with function of Access and Mobility management , AMF, a registration request message transmitted through user equipment, UE, where the registration request message comprises information that indicates that one or more PDU sessions request user plan resources, UP, and identify each one of the PDU sessions requesting UP resources, and in response to receiving the registration request message, AMF transmits to a management function
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    4/33 session, SMF, a UP resource request message to request SMF to establish UP resources for at least one of the PDU sessions requesting UP resources. The method may further comprise in response to receiving the UP resource request message, the SMF triggering a UP function relocation.
    [0010] In addition, the registration request message may comprise a registration type identifier (ID) indicating that the UE is in a registered state and initiates a registration due to mobility. The method may further comprise steps of receiving information transmitted by session management, SM, by SMF in response to the UP resource request message, where the SM information is the SM N2 information, the AMF transmitting to a node access that serves the UE with a N2 PDU session request message, where the message includes session management information. Wherein, the SM N2 information comprises information indicating quality of service (QoS) and tunnel end point information.
    [0011] UP resources for an identified PDU session requesting UP resources can include radio data carriers, DRBs, on a radio interface and a UP tunnel between a UP function and the access node it serves the UE. The registration request message comprises a tracking indicator indicating that the UE is requesting that the network maintain a signaling connection with the UE. The method may additionally comprise the steps of the AMF storage information (for example, a local indicator) indicating that the UE has requested that the signaling connection be maintained, and the AMF sending information to a radio access network node ( RAN) for the UE, where the information sent to the node indicates that the UE has requested that the signaling connection be maintained.
    [0012] In another modality, an entity with the function of
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    5/33
    Access and Mobility Management, AMF, is provided for the session management of Protocol Data Unit, PDU, AMF comprising a data processing system, a data storage system, and a network interface, in which the The data processing system is adapted to execute computer-readable instructions stored in the data storage system, to receive through the network interface a registration request message transmitted through a user equipment, UE, in which the request message registration comprises information indicating that one or more PDU sessions request user plan resources, UP, and identification of each of the PDU sessions requesting UP resources; and in response to receiving the registration request message, transmission through the network interface to a session management function, SMF, a UP resource request message to request SMF to establish UP resources for at least one of the sessions identified PDU requesting UP resources.
    [0013] In yet another modality, a method, in user equipment, UE, is provided for session management of Protocol Data Unit, PDU, the method comprising determining, through a user equipment, UE, that one or more more PDU sessions request user plan capabilities, UP, the determination, through the UE, that a registration request message needs to be transmitted, and after determining that a) the registration request message needs to be transmitted and b) one or more PDU sessions request UP resources, the UE transmits the registration request message, where the registration request message comprises information indicating that one or more PDU sessions request UP resources.
    [0014] In the UE method, the registration request message may additionally comprise a registration type identifier, ID, for
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    6/33 identify a record type, a UE ID, security parameters, network slice selection help information, and Network slice selection help information, NSSAI. The registration request message may additionally comprise a registration type identifier indicating that the UE is in a registered state and initiates a registration due to mobility. The UP features for the identified PDU session include radio data carriers, DRBs, in a radio interface and an UP tunnel.
    [0015] The registration request message may additionally comprise a tracking indicator indicating that the UE is requesting that the network maintain a signaling connection with the UE.
    [0016] In yet another embodiment, a user equipment, UE, comprising a data processing system, data storage system, radio transmitter and receiver coupled to the antenna, where the data processing system is adapted for execute computer-readable instructions to determine that one or more sessions of the protocol data units, PDU, request user plan capabilities, UP, determine that a registration request message needs to be transmitted using the radio transmitter and after determining that a) the registration request message needs to be transmitted and b) one or more PDU sessions / sessions requests UP resources, transmits the registration request message using the radio transmitter, in which the registration request message comprises information which indicate that one or more PDU sessions request UP resources.
    [0017] An advantage provided by the modalities described here is that the network can configure the UP resources to allow the transfer of UP data to the PDU session (s) indicated in a registration request message. transmitted by an UE.
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    7/33
    BRIEF DESCRIPTION OF THE DRAWINGS [0018] The attached drawings, which are incorporated here and form part of the specification, illustrate various modalities.
    [0019] Figure 1 illustrates an exemplary Next Generation communication structure.
    [0020] Figure 2 is a message flow chart that illustrates a process according to a modality.
    [0021] Figure 3 is a flow chart that illustrates a process according to a modality.
    [0022] Figure 4 is a flow chart that illustrates a process according to a modality.
    [0023] Figure 5 is a block diagram of an MFA according to some modalities.
    [0024] Figure 6 is a block diagram of a UE according to some modalities.
    [0025] Figure 7 is a diagram showing functional modules of an AMF according to some modalities.
    [0026] Figure 8 is a diagram showing functional modules of an UE according to some modalities.
    [0027] Figure 9 is a flow chart that illustrates a process according to a modality.
    [0028] Figure 10 is a flow chart that illustrates a process according to a modality.
    [0029] Figure 11 is a flow chart that illustrates a process according to a modality.
    DETAILED DESCRIPTION [0030] As mentioned above, user equipment (UE) 102 needs to register on the network to receive services that request registration. Referring now to Figure 1, Figure 1 illustrates a 5G communication system
    Petition 870190063671, of 07/08/2019, p. 17/63
    8/33 example 100. The 5G 100 communication system illustrates a point-to-point reference point representation. In figure 1, some nodes and functions of the network are shown. A user device (UE) 102 connects to the network through a radio access network node (RAN) 108. The RAN can be, for example, a base station, a NodeB or an eNodeb. It should be noted that the UE may be a mobile phone, for example, a smartphone, or some other type of unit with wireless communication capabilities, such as devices with Internet of Things (loT), machine-to-machine devices, vehicles , sensors, computers, laptops and so on. RAN 108 is in turn connected to a core network comprising a User Plan (UPF) 112 function, an Access and Mobility Management (AMF) function 104, a Session Management (SMF) function 106, a Policy Control function (PCF) 120. In addition, the network can comprise an Authentication Server Function / AUSF) 121, a Unified Data Management (UDM) node 122, an application function (AF) 123 and the connection to an external data network (DN) 124. These nodes / functions are interconnected with different interfaces NG1-NG15, as shown in Figure 1, it should be noted that the interfaces can also be denoted with Nl to N15.
    [0031] It should be noted that all nodes and functions can be physically located as separate nodes or partially incorporated in different nodes along with other nodes / functions, but for illustrative purposes shown as separate entities.
    [0032] The registration procedure is used in the following situations: (1) when EU 102 initially registers with a 5G system; (2) when the UE initiates a registration procedure due to mobility, for example, when the UE changes to a new registration area (for example a new Tracking Area (TA)) in idle mode; (3) when EU 102 performs a periodic update due to the expiration of a period of inactivity
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    9/33 predefined, etc.
    [0033] During an initial registration, a Mobile Equipment Identity (ME) is obtained from UE 102. An operator of the Mobility and Access Management (AMF) function 104 can verify the ME Identity with an EIR. The AMF then passes the ME Identity (IMEISV) to a Unified Data Management (UDM), a Session Management function (SMF) and a Policy Control function (PCF).
    [0034] Figure 2 is a message flow chart that illustrates a registration process for UE 200, according to one modality.
    [0035] In step 1, UE 102 transmits a registration request message to RAN 108. In one embodiment, the registration request message may comprise: a registration type identifier (ID) for identification of a type of registration registration, a UE ID (for example, a Permanent ID or a Temporary ID), security parameters, network slice selection help information (NSSAI), UE 5GCN capacity information, session status information PDU, and Radio Resource Control (RRC) parameters that indicate Permanent ID or Temporary ID, the Selected Network and the NSSAI. The record type ID indicates whether the UE 102 wishes to perform an “initial registration” (ie, the UE 102 is in an unregistered state), a “mobility record” (that is, the UE 102 is in a registered state and initiates a registration due to mobility) or a “periodic registration” (ie the UE 102 is in a registered state and initiates a registration due to the expired periodic update timer).
    [0036] Advantageously, the registration request message may also include information that identifies one or more Protocol Data Units (PDU) sessions that request user plan (UP) resources, such as (a) User Card (s) Data Radio and tunnels between the UP (UPF) and RAN function. In one mode, the UE 102 marks the PDU session (s)
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    10/33 that requests the establishment of UP resources with an active indicator in the registration request message. In some modalities, the marked PDU session (s) requests the establishment of UP resources because the UE 102 has UP data to transmit to the network. For example, the registration request message may include a first ordered set of N bits (ie a “bitmap”), where each of the N bits corresponds to a different one of the possible N PDU sessions that could require resources UP (for example, the first bit in the chain corresponds to a first PDU session, the second bit in the chain corresponds to a second PDU session, etc.). In some modalities, N is equal to the total number of PDU sessions that are considered active through the UE (for example, N = 3), while in other modalities N is equal to the total number of possible PDU sessions active in the UE ( for example, N = 16). The value of each bit in the bit string indicates whether the PDU session corresponds to the bit requesting UP resources (for example, if bit n is set to a value of 1, then the PDU session corresponding to this bit requests resources) UP, but if bit n is set to a value of 0, then the corresponding PDU session does not request UP resources). In this way, the UE can signal to the network the identity of the PDU session requesting UP resources.
    [0037] Additionally, the registration request message may also include information (for example, an indicator) indicating that the UE 102 is requesting "Follow-up" - that is, the UE is requesting that the network maintain the signaling connection with the UE after the registration procedure is completed, for example, the UE has additional messages (for example, a PDU session establishment message) to send to the network.
    [0038] In step 2, if the registration request message includes an ID (Permanent or Temporary) that does not indicate a valid MFA, RAN 108
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    11/33 selects an AMF 104 based on Radio Access Technology (RAT) and NSSAI, if available.
    [0039] In step 3, RAN 108 transmits the registration request message to AMF 104. In one embodiment, the registration request message transmitted to AMF 104 additionally comprises: Location Information, Cell Identity and type of RAT. The Location Information, Cell Identity and RAT type related to the cell in which the UE is located.
    [0040] In step 4, if the registration request message includes the Temporary ID of the UE and the AMF server 104 has changed since the last registration, the AMF 104 can transmit a request for information to the old AMF. The Request for Information includes the full IE registration request message in order to request the UE's Permanent Mobility Context and Mobility Management (MM).
    [0041] In step 5, in response to the Request for Information transmitted by AMF 104, the old AMF responds with an information response. The information response comprises the Permanent ID, the MM Context and the SMF information. In some modalities, the old MFA has information stored in relation to active PDU sessions. If the old AMF has stored information about active PDU sessions, the old AMF includes the SMF information comprising the SMF identities and the corresponding PDU session identities in the information response, so that the AMF 104 can map the sessions of PDU for SMFs.
    [0042] In step 6, if the Permanent ID is not provided through UE 102 or retrieved from the old AMF in the Information response, an Identity Request procedure is initiated by AMF 104 by transmitting an Identity Request message for UE 102.
    [0043] In step 7, in response to the Request for Information message
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    Identity, UE 102 responds to AMF 104 with an identity reply message including Permanent ID.
    [0044] In step 8, AMF 104 selects an AUSF if the registration request message is not sent with integrity protection or integrity protection is indicated as a failure based on the Permanent ID contained in the Information Response (step 5).
    [0045] In step 9, if AMF 104 selects AUSF because the registration request message is not sent with integrity protection or integrity protection is indicated as a failure, AUSF initiates the authentication of UE 102 and the functions of NAS security. Once security for the registration request message is established, AMF 104 can fetch IMEI from UE 102.
    [0046] In step 10, AMF 104 transmits an identity request to UE 102 to retrieve the ME's identity from the UE if the ME's identity is not provided through UE 102 in the registration request message nor retrieved from the old AMF in the Information Response.
    [0047] In step 11, in some modalities, the AMF initiates an identity verification of ME.
    [0048] In step 11a, AMF 104 sends a request request (for example, Nil) to SMF 106. If AMF 104 is changed, AMF 104 notifies each SMF 106 of the new AMF 104 that serves UE 102 ( that is, AMF 104 sends the request to each SMF). The new AMF 104 checks the status of the PDU session received from the UE 102 with the SMF information received from the old AMF. If AMF 104 has not changed, AMF 104 checks the PDU Session Status received from UE 102 with the available SMF information. After AMF 104 determines which PDU sessions are active on UE 102, AMF 104 releases any network resources related to PDU Sessions that are not active on UE 102.
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    13/33 [0049] Additionally, if the registration request message indicates that one or more PDU sessions request UP resources, then, for each such PDU session, AMF 104 transmits to SMF responsible for handling the PDU session a UP resource request to have SMF establish UP resources for the PDU session. For example, if the registration request message indicates that a PDU session being handled by SMF 106 requests UP resources, the request sent to SMF 106 in step 11a will also include the UP resource request.
    [0050] In step 11b, in response to the UP resource request, SMF 106 transmits a UP resource response (for example, Nl response). In some modalities, SMF 106 decides to trigger a UPF relocation. In some embodiments, SMF 106 provides SM information (for example, SM N2 information) in the UP resource response (for example, Nl response). SM information can include quality of service (QoS) service information and tunnel endpoint information to establish a tunnel between the radio access network (RAN) and UPF. In some modalities, the SMF provides the SM information in the response only if the AMF specifically requested the same in the request.
    [0051] In step 12, in some modalities, AMF 104 selects an UDM based on the permanent ID of UE 102.
    [0052] In step 13, AMF 104 starts a Location Update procedure if: (1) AMF 104 has changed since the last registration; (2) there is no valid subscription context for UE 102 in AMF 104; or (3) UE 102 provides a Permanent ID that does not refer to a valid context in AMF 104. When the Location Update Procedure is initiated, UDM initiates the cancellation location for the old AMF, if available. In response to the Cancellation Location, the old AMF removes the associated MM context and notifies all possibly SMF (s)
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    Associated 14/33. In some modalities, the interactions between the UDM and the PCF include information related to the restriction of mobility.
    [0053] In step 14, in some modalities, AMF 104 selects the PCF based on the permanent ID of UE 102.
    [0054] In step 15, in some modalities, AMF 104 transmits an EU Context Establishment Request to the PCF to apply operator policies for UE 102.
    [0055] In step 16, the PCF responds to the Request for Establishing an EU Context with Established EU Context for AMF 104.
    [0056] In step 17, in some modalities, the old AMF transmits an EU Context Termination Request to the PCF.
    [0057] In step 18, the PCF responds to the UE Context Termination Request with a Recognized UE Context Termination for the old AMF.
    [0058] In step 19, AMF 104 transmits security context information from UE context adjustment (Access Stratum (AS)) to RAN 108. If in step 11b the AMF receives SM Information from SMF 106 , then, this SM information and a NU PDU Session Request (Quality of Service (QoS), tunnel information, etc.) is included in the UE Context setting.
    [0059] AMF 104 validates the presence of UE 102 in the (new) location and if all checks are successful and the UE schedules a PDU session that requires UP resources or requested follow-up, then the connection must be maintained and AMF requests the RAN to establish a secure connection to the UE by providing Access Stratum (AS) security context information in the UE context adjustment message sent to the RAN.
    [0060] In some modalities, AMF 104 rejects the message of
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    15/33 registration request with an appropriate cause of rejection if the UE is not allowed to register at the current location.
    [0061] In step 19a, if the UE Context adjustment request includes a PDU Session request, RAN 108 performs the RRC Connection Reconfiguration with UE 102 in order to establish the standard radio carrier (DRB) for the PDU Session (s) request received in step 19.
    [0062] In step 20, AMF 104 sends a Registration Acceptance message to UE 102 indicating that the registration request message was accepted. In one embodiment, the Registration Acceptance message comprises: Temporary ID, registration area. Mobility restrictions, and PDU session status. AMF 104 indicates the PDU Session Status for the UE 102. Consequently, the UE removes any internal resources related to PDU sessions that are not marked active in the received PDU session status. If the PDU session status information is in the registration request message, AMF 104 indicates the corresponding PDU session status for UE 102. In some embodiments, the Registration Acceptance message includes the Temporary ID if the AMF 104 allocates a new temporary ID for UE 102. In some embodiments, the Registration Acceptance message includes mobility restrictions if mobility restrictions apply to UE 102.
    [0063] In step 21, in response to the Registration Acceptance message, UE 102 transmits a Complete Registration message to AMF 104. If a new temporary ID is included in the registration acceptance message, the Complete Registration message recognizes to AMF 104 that the new temporary ID is assigned.
    [0064] Figure 3 is a flow chart illustrating a process 300, according to one modality, which is performed by AMF 104 for the management of the PDU session.
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    16/33 [0065] Process 300 can begin with step 302 in which AMF 104 receives a registration request message transmitted through UE 102, in which the registration request message comprises information that identifies a PDU session that requests UP resources.
    [0066] In step 304, in response to receiving the registration request message, AMF 104 transmits to SMF 106, a UP resource request message to request SMF 106 to establish UP resources for the identified PDU session.
    [0067] In some modalities, in response to receiving the UP resource request message, SMF 106 triggers a UP function relocation.
    [0068] In some modalities, AMF 104 additionally receives session management information (for example, SM N2 information) transmitted by SMF 106 in response to the UP resource request message.
    [0069] In some embodiments, the AMF 104 transmits a message to the access node 108 that serves the UE 102 (for example, N2 PDU Session Request), in which the message includes the session management information (for example, example, SM N2 information).
    [0070] In some modalities, the session management information (for example, SM N2 information) comprises information that indicates a quality of service (QoS) and tunnel end point information.
    [0071] In some embodiments, the UP features for the identified PDU session include radio data carriers (DRBs) on a radio interface and UP tunnels between a UP function and the access node 108 that serves the UE 102 .
    [0072] Figure 4 is a flow chart that illustrates a process 400, according to a modality, which is executed through UE 102 to
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    17/33 PDU session management.
    [0073] Process 400 can start with step 402 in which UE 102 determines a first PDU session that requests UP resources.
    [0074] In step 404, the UE determines that a registration request message needs to be transmitted (for example, the UE determines that it needs to perform a mobility registration). In some modalities, step 404 is performed as a result of the UE determining that the first PDU session requests UP resources. In other embodiments, step 404 is performed periodically (for example, before step 402). In some embodiments, the UE step determines that a registration request message needs to be T being transmitted with the UE determining that the UE has moved to a new registration area (for example, the UE has moved outside the registration area in which the UE previously registered).
    [0075] In step 406, UE 102 transmits a registration request message after determining that i) the first PDU session requests UP resources and ii) a registration request message needs to be transmitted. The registration request message comprises information that indicates that the first PDU session requests UP resources.
    [0076] In some embodiments, the UE may additionally determine that a second PDU session also requests UP and ALT resources The registration request message transmitted in step 406 includes information indicating that both the first and second PDU sessions request resources of UP.
    [0077] For example, in some modalities, the UE executes a 900 process (see figure 9), the process of which includes: 1) the UE periodically determining whether it has moved to a new registration area (step 902) (ie, determines that a registration request message needs to be sent) and, as a result of determining that it has moved to a new registration area, the UE generates a registration request message
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    18/33 registration (step 904) and transmits the registration request message (step 906), in which the step of generating the registration request message comprises the UE determining whether the UE has uplink (UL) data to send ( step 904a) and, if so, the UE includes registration request message information indicating that a PDU session requests UP resources and identifying that PDU session.
    [0078] In some embodiments, the registration request message includes an identifier for the type of registration. The registration type ID indicates one of the following: (1) UE 102 is in an unregistered state and is requesting an initial registration; (2) UE 102 is in a registered state and initiates a registration due to mobility; and (3) UE 102 is in the registered state and initiates registration due to the expiration of a periodic update timer.
    [0079] In some embodiments, the UP features for the identified PDU session include radio data carriers (DRBs) on a radio interface and an UP tunnel between a UP function and an access node 108 that serves the EU 102.
    [0080] Figure 9 is a flow chart that illustrates a 900 process according to some modalities.
    [0081] Gl. Process 900 includes: UE (102) determining whether the UE has moved to a new registration area (step 902); and as a result of determining that the UE has moved to a new registration area, the UE generating a registration request message (904) and transmitting the registration request message (906), in which the message generation step registration request comprises: the UE determining whether the UE has uplink data (UL) to send (904a) and, if so, the UE includes registration request message information i) indicating that a registration session PDU requests UP resources and ii) that identifies said PDU session (904b).
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    19/33 [0082] Figure 10 is a flow chart that illustrates a process 1000 according to some modalities. Process 100 includes: AMF (104) which receives a registration request message transmitted by a UE (102); and the MFA (104) determining whether the registration request message includes information (for example, a tracking indicator) indicating that the UE is requesting that a signaling connection with the UE be maintained. In step 1002, the AMF receives a registration request from an UE. In step 1004, the AMF determines whether the registration request message includes information (for example, a tracking indicator) indicating that the UE is requesting that a signaling connection with the UE be maintained. In addition, the AMF, as shown in step 1006, can store information that the UE has requested that the signaling connection be maintained and the AMF can send to a node a server RAN information indicating that the UE has requested that the signaling connection be maintained. In step 1008, the RAN node can increase an inactivity timer for the UE as a result of receiving the information sent by the AMF. The RAN node can allow AS security to allow mobility from the connected mode to the UE, as shown in step 1010.
    [0083] Figure 11 is a flow chart that illustrates an 1100 process according to some modalities. Process 1100 includes: the UE (102) determining that the UE needs to register with a network (1102); and the UE, as a result of determining that the UE needs to register with the network, generating a registration request message (1104) and transmitting the registration request message to the network (1106), where the generation of the registration request message comprises the inclusion of the registration request message information (for example, a tracking indicator) indicating that the UE is requesting that the network maintain a signaling connection with the UE (1104 b).
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    20/33 [0084] Figure 5 is a block diagram of AMF 104 according to some modalities. As shown in Figure 5, AMF 104 may comprise: a data processing system (DPS) 502, which may include one or more processors 555 (for example, a general purpose microprocessor and / or one or more other processors, such as as an application-specific integrated circuit (ASIC), field programmable port arrays (FPGAs) and the like); network interface 505 for use in connecting AMF 104 to a network 110 so that AMF 104 can communicate with the other functions described (for example, SMF106) and RAN 108; and local storage unit (also known as a “data storage system”) 508, which may include one or more non-volatile storage devices and / or one or more volatile storage devices (for example, random access memory (RAM) )). In embodiments where the AMF 104 includes a general purpose microprocessor, a computer program product (CPP) 541 can be provided. CPP 541 includes a computer readable medium (CRM) 542 that stores a computer program (CP) 543 comprising computer readable instructions (CRI) 544. CRM 542 can be a non-transitory, computer readable medium such as, but not limited to magnetic media (eg, a hard drive), optical media (eg, a DVD), memory devices (eg, random access memory), and the like. In some embodiments, CRI 544 of computer program 543 is configured in such a way that when executed by data processing system 502, CRI causes AMF 104 to perform the steps described above (for example, the steps described above with reference to flowcharts). In other modalities, the AMF 104 can be configured to perform the steps described here without the need for code. That is, for example, the data processing system 502 may consist of merely one or more ASICs. Therefore, the characteristics of the modalities described here can be implemented in hardware and / or
    Petition 870190063671, of 07/08/2019, p. 30/63
    21/33 software.
    [0085] Figure 6 is a block diagram of a UE 102 according to some modalities. As shown in Figure 6, UE 102 may comprise: a data processing system (DPS) 602, which may include one or more processors 655 (for example, a general purpose microprocessor and / or one or more other processors, such as as an application specific integrated circuit (ASIC), field programmable port arrangements (FPGAs) and the like); a radio transmitter 605 and a radio receiver 606 coupled to an antenna 622 for use in wireless communication with a radio access network (RAN) node (for example, a Tx / Rx Point (TRP)); and local storage unit (also known as a “data storage system”) 608, which may include one or more non-volatile storage devices and / or one or more volatile storage devices (for example, random access memory (RAM) )). In embodiments where the UE 102 includes a general purpose microprocessor, a computer program product (CPP) 641 can be provided. CPP 641 includes a computer readable medium (CRM) for storing a computer program (CP) 643 comprising computer readable instructions (CRI) the CRM 642 can be a non-transitory computer readable medium, such as, but not limited to, media magnetic devices (for example, a hard drive), optical media (for example, a DVD), memory devices (for example, random access memory), and the like. In some embodiments, the CRI 644 of the 643 computer program is configured in such a way that when executed by the data processing system 602, the CRI causes the UE 102 to perform the steps described above (for example, the steps described above with reference to flowcharts). In other embodiments, the UE 102 can be configured to perform the steps described here without the need for code. That is, for example, the data processing system 602 may consist merely of
    Petition 870190063671, of 07/08/2019, p. 31/63
    22/33 in one or more ASICs. Therefore, the characteristics of the modalities described here can be implemented in hardware and / or software.
    [0086] Figure 7 is a diagram showing functional modules of an AMF 104 according to some modalities. As shown in the embodiment of Figure 7, the AMF 104 comprises a number of functional modules, including: a first acquisition module 702 configured to obtain through a receiver a registration request message transmitted through the UE 102, in which the registration message registration request comprises information that identifies a PDU session requesting UP resources; a first transmission module 704 configured to configure to employ a transmitter to transmit to SMF 106 a UP resource request message to request SMF 106 to establish UP resources for the identified PDU session in response to receiving the request message from UP record; a second retrieval module 706 configured to retrieve through the session management information from the receiver (e.g. SM N2 Information) transmitted by SMF 106 in response to the UP resource request message; and a second transmission module 708 configured to employ a transmitter to transmit a message (for example, an N2 PDU session request) to an access node 108 serving the UE 102, wherein the message includes the information of session management (for example, SM N2 information). It should be understood that modules 702-708 in one mode can be enabled through software instructions and in another mode via hardware, such as ASICs and DSPs, and in other modes through a mixture of hardware and software.
    [0087] Figure 8 is a diagram showing functional modules of a UE 102 according to some modalities. As shown in the embodiment of Figure 8, the UE 102 comprises a number of functional modules, including: an 802 determination module configured for
    Petition 870190063671, of 07/08/2019, p. 32/63
    23/33 determine a first PDU session that requests UP resources; and a first transmission module 804 configured to employ a transmitter to transmit a registration request message, wherein the registration request message comprises information that identifies the first PDU session requesting the UP resources. It should be understood that 802-804 modules in one mode can be enabled through software instructions and in another mode through hardware, such as ASICs and DSPs, and in other modes through a mix of hardware and software.
    Concise description of several described modalities:
    AMF modalities [0088] Al. One method (300) for PDU session management, method (300) comprising:
    receiving (302), in an AMF (104) a registration request message transmitted through a user equipment, UE (102), in which the registration request message comprises information indicating that one or more PDU sessions request user plan resources, UP, and identify each of the PDU sessions that request UP resources; and in response to receiving the registration request message, AMF (104) transmits (304) to a session management function, SMF (106), a UP resource request message to request SMF (106) establish UP resources for at least one of the PDU sessions requesting UP resources.
    [0089] A2. Method (300) of the Al modality, the method further comprising:
    in response to receiving the UP resource request message, SMF (106) triggers a UP function relocation.
    [0090] A3. The method (300) of the Al or A2 modality, in which the
    Petition 870190063671, of 07/08/2019, p. 33/63
    The registration request message further comprises a registration type identifier, ID, indicating that the UE (102) is in a registered state and initiates a registration due to mobility.
    [0091] A4. The method (300) of any of the above modalities, wherein the method additionally comprises:
    receive session management information, SM (for example information from SM N2), transmitted by SMF (106) in response to the UP resource request message.
    [0092] A5. The method (300) of the A4 modality, in which the method additionally comprises:
    the AMF (104) transmitting to an access node (108) that serves the UE (102) a message (for example, PDU Session Request N2), wherein the message includes the session management information (for example , SM N2 information).
    [0093] A6. The method (300) of the A4 or A5 modalities, the session management information (for example, SM N2 information) comprises information indicating a quality of service, QoS, and tunnel end point information.
    [0094] A7. The method of any of the above modalities, in which the UP resources for an identified PDU session requesting UP resources include radio data carriers, DRBs, on a radio interface and an UP tunnel between a UP function and the access node (108) serving the UE (102).
    [0095] Bl. An AMF (104) for PDU session management, the AMF (104) adapted for:
    receive (304) a registration request message transmitted via user equipment, UE (102), in which the registration request message comprises information indicating that one or more PDU sessions request / request plan resources
    Petition 870190063671, of 07/08/2019, p. 34/63
    25/33 user, UP, and identification of each of the PDU sessions that request UP resources; and in response to receiving the registration request message, transmit (304) to a session management function, SMF (106), a UP resource request message to request SMF (106) to establish UP resources for at least one of the identified PDU sessions requesting UP resources.
    [0096] Cl. An AMF (104) for PDU session management, the AMF (104) comprising:
    a first retrieval module (702) configured to retrieve through a receiver a registration request message transmitted via user equipment, UE (102), wherein the registration request message comprises information indicating that one or more PDU sessions request user plan resources, UP, and identify each of the PDU sessions that request UP resources; and a first transmission module (704) configured to employ a transmitter to transmit to a session management function, SMF (106), a UP resource request message as a result of receiving the registration request message, wherein the UP resource request message comprises information to request SMF (106) to establish UP resources for at least one of the identified PDU sessions requesting UP resources.
    [0097] B / C2. The AMF (104) of the BI or Cl modality, in which the registration request message additionally comprises a registration type identifier (ID) indicating that the UE (102) is in a registered state and is starting a registration due to mobility .
    [0098] B / C3. The AMF (104) of any of the above modalities, where the AMF (104) is additionally adapted to receive
    Petition 870190063671, of 07/08/2019, p. 35/63 / 33 session management information (for example, SM N2 information) transmitted by SMF (106) in response to the UP resource request message; or the AMF (104) further comprises a second retrieval module (706) configured to retrieve through the receiver session management information (e.g., SM N2 information) transmitted by the SMF (106) in response to the request message from UP feature.
    [0099] B / C4. AMF (104) of the B / C3 mode, wherein AMF (104) is additionally adapted to transmit a message (for example, a PDU Session Request) to an access node (108) serving the UE (102) of N2), where the message includes session management information (for example, SM N2 information); or the AMF (104) further comprises a second transmission module (708) configured to employ a transmitter to transmit a message (e.g., a PDU Session Request) to an access node (108) serving the UE (102) of N2), where the message includes session management information (for example, SM N2 information).
    [00100] B / C5. The AMF (104) of modalities B / C4 or B / C5, in which the session management information (for example, SM N2 information) comprises information indicating a quality of service (QoS) and tunnel end point information.
    [00101] B / C6. The MFA (104) of any of the above modalities, in which the UP resources for the identified PDU session include radio data carriers, DRBs, on a radio interface and a UP tunnel between a UP function and the access node (108) serving the UE (102).
    EU modalities
    Petition 870190063671, of 07/08/2019, p. 36/63
    27/33 [00102] Dl. A method (400) for PDU session management, method (400) comprising:
    determine (402), through a user equipment, UE (102), that a first PDU session requests user plan resources, UP;
    determine (404), through the UE, that a registration request message needs to be transmitted; and after determining that a) the registration request message needs to be transmitted and b) the first PDU session requests UP resources, the EU transmits (404) the registration request message, in which the registration request message comprises information indicating that the first PDU session requests UP resources.
    [00103] D2. The D1 method (400), wherein the registration request message further comprises a record type identifier, ID, for identification of a record type, a UE ID (for example, a Permanent ID or an ID Temporary), security parameters, network slice selection help information, NSSAI.
    [00104] D3. The method (400) of the D1 or D2 mode, wherein the registration request message further comprises an identifier of the registration type which indicates that the UE (102) is in a registered state and initiates a registration due to mobility.
    [00105] D4. The method (400) of any of the above modalities, in which the UP resources for the identified PDU session include radio data carriers, DRBs, in a radio interface and an UP tunnel.
    [00106] El. User equipment, UE (102), for PDU session management, UE (102) adapted for:
    determine that a first PDU session requests user plan resources, UP;
    Petition 870190063671, of 07/08/2019, p. 37/63
    28/33 determine that a registration request message needs to be transmitted; and after determining that a) the registration request message needs to be transmitted and b) the first PDU session requests UP resources, transmit the registration request message, in which the registration request message comprises information indicating that the first PDU session requests UP resources.
    [00107] Fl. User equipment, UE (102), for PDU session management, UE (102) comprising:
    a determination module (802) configured to determine: i) whether a first PDU session requests user plan features, UP and ii) whether a registration request message needs to be transmitted; and a first transmission module (804) configured to employ a transmitter to transmit the registration request message in response to the determination module determining that the registration message needs to be transmitted, wherein the registration request message comprises information that identifies that the first PDU session requests UP resources.
    [00108] F2. The UE (102) of the El or Fl modality, wherein the registration request message further comprises a record type identifier (ID) to identify a record type, a UE ID (for example, a Permanent ID or a Temporary ID), security parameters, network slice selection help information (NSSAI).
    [00109] E / F3. The UE (102) of the El, Fl or E / F2 modality, in which the registration request message additionally comprises a record type identifier (ID) indicating that the UE (102) is in a registered state and initiates a registration due to mobility.
    [00110] E / F4. The UE (102) of any of the above modalities,
    Petition 870190063671, of 07/08/2019, p. 38/63
    29/33 where the UP resources for the identified PDU session include radio data carriers, DRBs, on a radio interface and a UP tunnel.
    [00 111] G1. A method (900) comprising:
    a UE (102) determining whether the UE has moved to a new registration area (step 902); and as a result of determining that the UE has moved to a new registration area, the UE generates a registration request message (904) and transmits the registration request message (906), in which the step of generating the registration registration request message comprises:
    the UE determining whether the UE has uplink data (UL) to send (904a) and, if this is the case, the UE includes registration request message information i) indicating that a PDU session requests UP resources and ii) identifying said PDU session (904b).
    Additional MFA modalities [00112] Η1. One method (1000), comprising:
    an MFA (104) receiving a registration request message transmitted by a UE (102); and the AMF (104) determining whether the registration request message includes information (for example, a tracking indicator) indicating that the UE is requesting that a signaling connection with the UE be maintained.
    [00113] H2. Da1 mode method, comprising:
    as a result of the AMF's determination that the registration request message includes information indicating that the UE is requesting that the signaling connection with the UE be maintained, the AMF storage information (for example, a local indicator)
    Petition 870190063671, of 07/08/2019, p. 39/63
    30/33 indicating that the UE has requested that the signaling connection be maintained.
    [00114] H3. H1 or H2 method, comprising:
    as a result of AMF's determination that the registration request message includes information indicating that the UE is requesting that the signaling connection with the UE be maintained, the AMF sends information to a node (for example, base station) of a radio access network (RAN) serving the UE, where the information sent to the node indicates that the UE has requested that the signaling connection be maintained.
    [00115] H4. The H3 mode method, in which the RAN node increases an inactivity timer for the UE as a result of receiving the information sent by the AMF.
    [00116] H5. The method of any of the H3-H4 modalities, in which the information sent by the AMF to the RAN node additionally comprises information to enable the security of Access Stratus (AS) (for example, to allow mobility of the connected mode).
    [00117] H6. The H5 mode method, additionally comprising the RAN node enabling AS security to enable mobility from the connected mode to the UE.
    [00118] I. An apparatus adapted for:
    receiving a registration request message transmitted by a UE (102); and determining whether the registration request message received includes information (for example, a tracking indicator) indicating that the UE is requesting that a signaling connection with the UE be maintained.
    [00119] J. An apparatus comprising:
    a retrieval module for obtaining a registration request message transmitted by a UE (102); and a determination module to determine whether the message
    Petition 870190063671, of 07/08/2019, p. 40/63
    31/33 The registration request obtained includes information (for example, a tracking indicator) indicating that the UE is requesting that a signaling connection with the UE be maintained.
    Additional EU modalities [00120] Η1. A method (1100), comprising:
    a UE (102) determining that the UE needs to register with a network (1102);
    the UE, as a result of the determination that the UE needs to register with the network, generating a registration request message (1104) and transmitting the registration request message to the network (1106), in which to generate the registration message Registration request comprises including in the registration request message information (for example, a tracking indicator) indicating that the UE is requesting that the network maintain a signaling connection with the UE (1104b).
    [00121] H2. The Hl method, additionally comprising:
    the UE determining whether the UE has uplink data, UL, to send (1104a), in which the UE includes in the registration request message the information indicating that the UE is requesting that the network maintain the signaling connection with the UE as a result of the UE determining that the UE has UL data for shipping.
    [00122] H3. The Hl or H2 method, additionally comprising:
    the UE transmitting a request to establish a PDU session (1108) (in some embodiments, the UE transmits the request to establish the PDU session immediately after the UE is successfully registered on the network).
    Petition 870190063671, of 07/08/2019, p. 41/63
    32/33 [00123] II. A UE (102) adapted for:
    determine that the UE needs to register with a network (1102);
    as a result of determining that the UE needs to register with the network, generate a registration request message (1104) and transmit the registration request message to the network (1106), where the UE is configured to generate the registration registration request message by executing a process comprising including in the registration request message information (for example, a tracking indicator) indicating that the UE is requesting that the network maintain a signaling connection with the UE (1104b) .
    [00124] J1. The EU (102) comprising:
    a determination module to determine whether the UE needs to register with a network;
    a generation module for generating a registration request message as a result of determining that the UE needs to register with the network;
    a transmission module for employing a transmitter to transmit the registration request message to the network, in which the generation module is configured to generate the registration request message by carrying out a process that includes inclusion in the message information registration request (for example, a tracking indicator) indicating that the UE is requesting that the network maintain a signaling connection with the UE.
    [00125] While various embodiments of the present invention are described here, it should be understood that they were presented by way of example only, and not by way of limitation. Thus, the breadth and scope of the present invention should not be limited by any of the exemplary modalities described above. In addition, any combination of the elements described above in all possible variations of them is covered by the
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    33/33 description, unless otherwise indicated here or otherwise clearly contradicted by the context.
    [00126] Additionally, although the processes described above and illustrated in the drawings are shown as a sequence of steps, this was done for illustration purposes only. Consequently, it is contemplated that some steps may be added, some steps may be omitted, the order of the steps may be rearranged, and some steps may be carried out in parallel.
    权利要求:
    Claims (26)
    [1]
    1. Method (300) for session management of Protocol Data Unit, PDU, method (300) characterized by the fact that it comprises:
    - receive (302), in an entity with an Access and Mobility Management function, AMF (104) a registration request message transmitted through a user device, UE (102), in which the registration request message comprises information that indicates that one or more PDU sessions request user plan resources, UP, and identify each of the PDU sessions that request UP resources; and
    - in response to receiving the registration request message, AMF (104) transmits (304) to a session management function, SMF (106), a UP resource request message to request SMF (106) establish UP resources for at least one of the PDU sessions requesting UP resources.
    [2]
    2. Method (300) according to claim 1, the method characterized by the fact that it additionally comprises:
    - in response to receiving the UP resource request message, SMF (106) triggers a UP function relocation.
    [3]
    3. Method (300) according to claim 1 or 2, characterized in that the registration request message further comprises a registration type identifier, ID, indicating that the UE (102) is in a registered state and starts a registration due to mobility.
    [4]
    4. Method (300) according to any one of the preceding claims, characterized in that the method additionally comprises:
    - receive session management information, SM,
    Petition 870190063671, of 07/08/2019, p. 44/63
    2/7 transmitted by SMF (106) in response to the UP resource request message, where the SM information is SM N2 information.
    [5]
    5. Method (300) according to claim 4, characterized by the fact that the method additionally comprises:
    - the AMF (104) transmitting to an access node (108) that serves the UE (102) a PDU session request message N2, wherein the message includes the session management information.
    [6]
    Method (300) according to claim 4 or 5, characterized by the fact that the N2 SM information comprises information that indicates a quality of service, QoS, and tunnel end point information.
    [7]
    7. Method according to any of the preceding claims, characterized by the fact that the UP resources for an identified PDU session requesting UP resources include radio data carriers, DRBs, on a radio interface and a tunnel of UP between a UP function and the access node (108) serving the UE (102).
    [8]
    8. Method according to any of the preceding claims, characterized by the fact that the registration request message comprises a tracking indicator indicating that the UE is requesting that the network maintain a signaling connection with the UE.
    [9]
    9. Method according to claim 8, characterized by the fact that it additionally comprises steps of
    - AMF storage information indicates that the UE has requested that the signaling connection be maintained, and
    - the AMF sends information to a node in a radio access network, RAN, which serves the UE, where the information sent to the node indicates that the UE has requested that the signaling connection be maintained.
    [10]
    10. Entity with Access and Mobility Management function, AMF (104), for Data Unit session management
    Petition 870190063671, of 07/08/2019, p. 45/63
    3! Ί of Protocol, PDU, AMF (104), characterized by the fact that it comprises a data processing system (502), a data storage system (508) and a network interface (505), in which the data processing system is adapted to execute computer-readable instructions stored in the data storage system, to:
    - receiving (304) through the network interface (505) a registration request message transmitted via user equipment, UE (102), wherein the registration request message comprises information indicating that one or more registration sessions PDU requests / requests user plan, UP resources, and identification of each of the PDU sessions that request UP resources; and
    - in response to receiving the registration request message, transmit (304) through the network interface (505) to a session management function, SMF (106), a UP resource request message to request the SMF ( 106) that establishes UP resources for at least one of the identified PDU sessions that request UP resources.
    [11]
    11. Entity with Access and Mobility Management (104) (AMF) function according to claim 10, characterized by the fact that the registration request message additionally comprises a registration type identifier, ID, indicating that the UE (102) is in a registered state and initiates a registration due to mobility.
    [12]
    12. Entity with Access and Mobility Management (104) (AMF) function according to claim 10 or 11, characterized by the fact that the AMF (104) is additionally adapted to receive session management information transmitted by the SMF (106 ) in response to the UP resource request message, where the session management information is SM N2 information.
    Petition 870190063671, of 07/08/2019, p. 46/63
    ΜΊ
    [13]
    13. Entity with Access and Mobility Management (104) (AMF) function according to claim 12, characterized by the fact that the AMF (104) is additionally adapted to transmit to an access node (108) that serves the UE (102) a message, an N2 PDU Session Request, wherein the message includes session management information.
    [14]
    14. Entity with Access and Mobility Management (104) (AMF) function according to claim 12 or 13, characterized by the fact that the session management information comprises information that indicates a quality of service, QoS, and information tunnel end point.
    [15]
    15. Entity with Access and Mobility Management (104) (AMF) function according to any of claims 10 to 14, characterized by the fact that the UP resources for the identified PDU session include data radio bearers, DRBs, on a radio interface and a UP tunnel between a UP function and the access node (108) serving the UE (102).
    [16]
    16. Entity with Access and Mobility Management (104) (AMF) function according to any of claims 10 to 15, characterized by the fact that the registration request message comprises a follow-up indicator indicating that the UE is requesting that the network maintains a signaling connection with the UE.
    [17]
    17. Method (400) for session management of Protocol Data Unit, PDU, in a user equipment, UE (102), method (400) characterized by the fact that it comprises:
    - determine (402), through a user equipment, UE (102), that one or more of the PDU sessions request user plan resources, UP;
    Petition 870190063671, of 07/08/2019, p. 47/63
    5/7
    - determining (404), through the UE, that a registration request message needs to be transmitted; and
    - after determining that a) the registration request message needs to be transmitted and b) to one or more PDU sessions requesting UP resources, the UE transmits (404) the registration request message, in which the registration request message comprises information that indicates that one or more PDU sessions request / request UP resources.
    [18]
    18. Method (400) according to claim 17, characterized in that the registration request message additionally comprises a record type identifier, ID, for identifying a record type, a EU ID, security parameters , network slice selection help information and Network slice selection help information, NSSAI.
    [19]
    19. Method (400) according to claim 17 or claim 18, characterized in that the registration request message further comprises an identifier of the registration type which indicates that the UE (102) is in a registered state and initiates a registration due to mobility.
    [20]
    20. Method (400) according to any of claims 17 to 19, characterized by the fact that the UP features for the identified PDU session include radio data carriers, DRBs, on a radio interface and a tunnel of UP.
    [21]
    21. Method according to any one of claims 17 to 20, characterized in that the registration request message comprises a tracking indicator indicating that the UE is requesting that the network maintain a signaling connection with the UE.
    [22]
    22. User equipment, UE, (102), characterized by the fact that it comprises a data processing system (602), a data storage system (608), a radio transmitter (605) and
    Petition 870190063671, of 07/08/2019, p. 48/63
    6/7 receiver (606) coupled to an antenna (622), where the data processing system is adapted to execute computer-readable instructions for:
    - determine that one or more sessions of the protocol data units, PDU, request user plan resources, UP;
    - determining that a registration request message needs to be transmitted using the radio transmitter (605); and
    - after determining that a) the registration request message needs to be transmitted and b) the session of one or more PDU sessions requests / requests UP resources, transmit using the radio transmitter (605) the registration request message, in that the registration request message comprises information indicating that one or more PDU sessions request UP resources.
    [23]
    23. User equipment (UE) (102) according to claim 22, characterized by the fact that the registration request message additionally comprises a record type identifier, ID, for identification of a record type, an ID UE, Permanent ID or Temporary ID, security parameters, network slice selection help information, NSSAI.
    [24]
    24. User equipment (UE) (102) according to claim 22 or 23, characterized in that the registration request message additionally comprises a record type identifier, ID, indicating that the UE (102) is in a registered state and initiates a registration due to mobility.
    [25]
    25. User equipment (UE) (102) according to any of the previous claims 22 to 24, characterized by the fact that the UP features for the identified PDU session include data radio bearers, DRBs, in an interface radio and a UP tunnel.
    [26]
    26. User equipment (EU) (102) according to any of claims 22 to 25, characterized by the fact that the
    Petition 870190063671, of 07/08/2019, p. 49/63
    7/7 registration request message additionally comprises a tracking indicator indicating that the UE is requesting that the network maintain a signaling connection with the UE.
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    同族专利:
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    KR20190057435A|2019-05-28|
    US20190007921A1|2019-01-03|
    WO2018132050A1|2018-07-19|
    EP3482589A4|2019-11-27|
    EP3482589A1|2019-05-15|
    CN109644419A|2019-04-16|
    KR20210118247A|2021-09-29|
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    JP2020504559A|2020-02-06|
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    法律状态:
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