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WO2025227503A1 - Techniques pour restreindre l'utilisation d'une technologie d'accès radio d'un réseau mobile terrestre public - Google Patents

Techniques pour restreindre l'utilisation d'une technologie d'accès radio d'un réseau mobile terrestre public

Info

Publication number
WO2025227503A1
WO2025227503A1 PCT/CN2024/105440 CN2024105440W WO2025227503A1 WO 2025227503 A1 WO2025227503 A1 WO 2025227503A1 CN 2024105440 W CN2024105440 W CN 2024105440W WO 2025227503 A1 WO2025227503 A1 WO 2025227503A1
Authority
WO
WIPO (PCT)
Prior art keywords
rat
restriction information
utilization restriction
plmn
management function
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/105440
Other languages
English (en)
Inventor
Menghan WANG
Shuang Liang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to PCT/CN2024/105440 priority Critical patent/WO2025227503A1/fr
Publication of WO2025227503A1 publication Critical patent/WO2025227503A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/001—Registration rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events

Definitions

  • This document is directed generally to digital wireless communications.
  • LTE Long-Term Evolution
  • 3GPP 3rd Generation Partnership Project
  • LTE-A LTE Advanced
  • 5G The 5th generation of wireless system, known as 5G, advances the LTE and LTE-A wireless standards and is committed to supporting higher data-rates, large number of connections, ultra-low latency, high reliability and other emerging business needs.
  • RAT radio access technology
  • PLMN public land mobile network
  • a first example wireless communication method includes sending, by a communication device to a device comprising a mobility management function, an indication that the communication device supports radio access technology (RAT) utilization restriction information; and receiving, by the communication device from the device, the RAT utilization restriction information, where the indication and the RAT utilization restriction information are sent and received using a transparent container.
  • RAT radio access technology
  • the RAT utilization restriction information includes a first set of one or more lists of one or more restricted RATs for one or more public land mobile networks (PLMNs) and/or a second set of one or more lists of one or more restricted RAT types for one or more PLMNs.
  • RAT utilization restriction information includes one or more lists of one or more supported RATs or one or more recommended RATs and/or one or more lists of one or more supported RAT Types or one or more recommended RAT Types for one or more public land mobile networks (PLMNs) .
  • the one or more PLMNs includes one or more of any PLMN that includes a serving PLMN, an equivalent PLMN equivalent to the serving PLMN, or another PLMN that is not the serving PLMN or the equivalent PLMN.
  • the RAT utilization restriction information includes an indication that an acknowledgement of successful reception of the RAT utilization restriction information is requested from the communication device.
  • the RAT utilization restriction information is included in one or more of the following messages: a registration accept message, an attach accept message, a tracking area updating (TAU) accept message, a registration reject message, an attach reject message, or a TAU reject message.
  • the method further comprises performing, by the communication device, an operation in response to receiving the RAT utilization restriction information, wherein the operation comprises any one or more of: replacing stored RAT utilization restriction information with the RAT utilization restriction information received by the communication device, prioritizing the RAT utilization restriction information that is received over a public land mobile network (PLMN) and/or access technology combination in an operator controlled PLMN selector with access technology data during a PLMN selection procedure, indicating the RAT utilization restriction information for a serving PLMN and/or one or more equivalent PLMNs to an access stratum (AS) for cell selection and/or cell reselection, refraining from utilizing one or more restricted RATs for the cell selection and/or the cell reselection as indicated by the RAT utilization restriction information, or utilizing one or more supported or recommended RATs for the cell selection and/or the cell reselection as indicated by the RAT utilization restriction information.
  • PLMN public land mobile network
  • AS access stratum
  • the method further comprises transmitting, by the communication device to the mobility management function, an acknowledgement of successful reception of the RAT utilization restriction information.
  • the mobility management function incudes a mobility management entity (MME) or an access and mobility management function (AMF) .
  • a second example wireless communication method includes receiving, by a device comprising a mobility management function from a second device comprising a subscription management function, radio access technology (RAT) utilization restriction information; and transmitting, by the device to a communication device, the RAT utilization restriction information, where the RAT utilization restriction information are received and transmitted using a transparent container.
  • RAT radio access technology
  • the RAT utilization restriction information includes a first set of one or more lists of one or more restricted RATs for one or more public land mobile networks (PLMNs) and/or a second set of one or more lists of one or more restricted RAT types for one or more PLMNs.
  • RAT utilization restriction information includes one or more lists of one or more supported RATs or one or more recommended RATs and/or one or more lists of one or more supported RAT Types or one or more recommended RAT Types for one or more public land mobile networks (PLMNs) .
  • the one or more PLMNs includes one or more of any PLMN that include a serving PLMN, an equivalent PLMN equivalent to the serving PLMN, or another PLMN that is not the serving PLMN or the equivalent PLMN.
  • the RAT utilization restriction information includes an indication that an acknowledgement of successful reception of the RAT utilization restriction information is requested from the communication device.
  • the RAT utilization restriction information sent to communication device is included in one or more of the following messages: a registration accept message, an attach accept message, a tracking area updating (TAU) accept message, a registration reject message, an attach reject message, or a TAU reject message.
  • the method further comprises receiving, by the device from the communication device, an indication that the communication device supports the RAT utilization restriction information; and sending, by the device to a second device comprising a subscription management function, the indication that the communication device supports RAT utilization restriction information using the transparent container.
  • the device sends to the second device a list of equivalent PLMN.
  • the method further comprises sending, by the device to a second device comprising a subscription management function, a message that indicates that the mobility management function subscribes to be notified when the RAT utilization restriction information is modified.
  • the method further comprises receiving, by the device from the communication device, an acknowledgement of a successful reception of the RAT utilization restriction information sent using the transparent container; and sending, by the device to the second device, an acknowledgement that the RAT utilization restriction information is successfully received by the communication device.
  • the subscription management function includes a home subscriber server (HSS) or a unified data management (UDM) .
  • the mobility management function incudes a mobility management entity (MME) or an access and mobility management function (AMF) .
  • a third example wireless communication method includes receiving, by a second device comprising a subscription management function from a device comprising a mobility management function, an indication that a communication device supports RAT utilization restriction information; and transmitting, by the second device to the device, the RAT utilization restriction information, where the indication and the RAT utilization restriction information are received and transmitted using a transparent container.
  • the RAT utilization restriction information includes a first set of one or more lists of one or more restricted RATs for one or more public land mobile networks (PLMNs) and/or a second set of one or more lists of one or more restricted RAT types for one or more PLMNs.
  • the RAT utilization restriction information includes one or more lists of one or more supported RATs or one or more recommended RATs and/or one or more lists of one or more supported RAT Types or one or more recommended RAT Types for one or more public land mobile networks (PLMNs) .
  • the one or more PLMNs includes one or more of any PLMN that includes a serving PLMN, an equivalent PLMN equivalent to the serving PLMN, or another PLMN that is not the serving PLMN or the equivalent PLMN.
  • the RAT utilization restriction information includes an indication that an acknowledgement of a successful reception of the RAT utilization restriction information is requested from the communication device.
  • the method further comprises receiving, by the second device from the device, a message that indicates that the mobility management function subscribes to be notified when the RAT utilization restriction information is modified. In some embodiments, the method further comprises receiving, by the second device from the device, an acknowledgement of a successful reception of the RAT utilization restriction information.
  • the subscription management function includes a home subscriber server (HSS) or a unified data management (UDM) .
  • the above-described methods are embodied in the form of processor-executable code and stored in a non-transitory computer-readable storage medium.
  • the code included in the computer readable storage medium when executed by a processor, causes the processor to implement the methods described in this patent document.
  • a device that is configured or operable to perform the above-described methods is disclosed.
  • FIG. 1 shows an example 5G System (5GS) architecture.
  • FIG. 2 shows an example Evolved Packet System (EPS) architecture.
  • EPS Evolved Packet System
  • FIG. 3 shows an example flowchart for a RAT utilization restriction information provision by home public land mobile network (HPLMN) during Registration procedure in 5GS.
  • HPLMN home public land mobile network
  • FIG. 4 shows an example flow chart for a RAT utilization restriction information provision by HPLMN during initial attach procedure or TAU procedure in EPS.
  • FIG. 5 shows an exemplary block diagram of a hardware platform that may be a part of a network device or a communication device.
  • FIG. 6 shows an example of wireless communication including a base station (BS) and user equipment (UE) based on some implementations of the disclosed technology.
  • BS base station
  • UE user equipment
  • FIG. 7 shows an exemplary flowchart for receiving radio access technology (RAT) utilization restriction information.
  • RAT radio access technology
  • FIG. 8 shows an exemplary flowchart for transmitting radio access technology (RAT) utilization restriction information.
  • RAT radio access technology
  • FIG. 9 shows another exemplary flowchart for transmitting radio access technology (RAT) utilization restriction information.
  • RAT radio access technology
  • a new work item is approved to specify how to control UE Radio Access Technology (RAT) utilization proactively.
  • RAT Radio Access Technology
  • current mechanism to limit UE utilization of certain RAT employed by network operators involves rejecting the UE’s attach/Tracking Area Updating (TAU) request or the registration request with cause value #15 ‘no suitable cells in tracking area’ extended with value ‘E-UTRAN not allowed’ or #27 ‘N1 mode not allowed’ upon UE attempts to attach/register via a specific RAT.
  • TAU attach/Tracking Area Updating
  • this existing mechanism resulted in e.g.
  • PLMN public land mobile network
  • FIG. 1 shows an example 5G System (5GS) architecture.
  • the 5GS architecture consists of the following network functions (NFs) :
  • This NF includes functionalities such as UE Mobility Management, Reachability Management, Connection Management and Registration Management.
  • the AMF terminates the RAN control plane (CP) interface N2 and NAS interface N1, NAS ciphering and integrity protection. It also distributes the SM NAS to the proper SMFs via N11 interface.
  • CP RAN control plane
  • NAS interface N1 NAS ciphering and integrity protection. It also distributes the SM NAS to the proper SMFs via N11 interface.
  • UDM -Unified Data Management This NF manages the subscription profile for the UEs.
  • the subscription data is stored in the Unified Data Repository (UDR) .
  • the subscription information includes the data used for Mobility Management and Session Management.
  • the AMF and SMF retrieve the subscription data from the UDM.
  • This NF includes the following functionalities: session establishment, modification and release, UE IP address allocation & management, selection and control of user plane (UP) function, etc.
  • This NF serves as an anchor point for intra-/inter-radio access technology (RAT) mobility and as the external PDU session point of interconnect to Data Network (DN) .
  • the UPF also routes and forwards the data packet according to the indication from the SMF. It also buffers the downlink (DL) data when the UE is in idle mode.
  • RAT intra-/inter-radio access technology
  • DN interconnect to Data Network
  • FIG. 2 shows an example Evolved Packet System (EPS) architecture that includes the following:
  • HSS Home Subscriber Server
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • P-GW PDN Gateway
  • SGSN Serving GPRS Support Node
  • PCRF Policy and Charging Rules Function
  • This patent document provides example methods to support restriction of RAT utilization of any PLMN including but not limited to:
  • HPLMN provides RAT utilization restriction information of any PLMN to UE
  • a UE when a UE receives RAT utilization restriction information, the UE can be instructed to restrict access to or communicating with a wireless communication system (e.g., 4G or 5G systems) .
  • a wireless communication system e.g., 4G or 5G systems
  • An operator can change or indicate restriction information in the RAT utilization restriction information.
  • An equivalent PLMN is a PLMN that is considered equivalent to a current serving PLMN for a UE.
  • the examples given below are based on EPS and 5GS procedures. However, the proposed methods are not limited to EPS and 5GS and can be used also in 2G System, 3G System, 6G System and beyond.
  • FIG. 3 shows an example flowchart for a RAT utilization restriction information provision by HPLMN during Registration procedure in 5GS.
  • the numbers associated with the operations shown below correspond to the numbers shown in FIG. 3.
  • UE to AMF The UE initiates the registration procedure for initial registration or the registration procedure for mobility and periodic registration update by sending a REGISTRATION REQUEST message to the AMF.
  • AMF is the Mobility Management Element in 5GS.
  • the UE If the UE supports Radio Access Technology (RAT) utilization restriction information, e.g., information used by UE for restriction on utilization of certain RAT (s) , the UE includes an indication that the UE supports RAT utilization restriction information in the REGISTRATION REQUEST message.
  • the indication may be included in a transparent container for RAT utilization restriction information sent to UDM via AMF e.g. SOR transparent container, UE parameters update transparent container, or a new transparent container e.g. RAT utilization restriction information transparent container.
  • the transparent container includes contents that cannot be changed by a mobility management function such as an AMF.
  • AMF->UDM The AMF registers with UDM using Nudm_UEContextManagement _Registration (Nudm_UECM_Registration) service operation.
  • UDM is the Subscription Management Element in 5GS.
  • the AMF provides the indication or the transparent container to UDM.
  • AMF may provide equivalent PLMN list to UDM.
  • AMF->UDM After AMF has successfully completed the registration service operation with UDM and if the AMF does not have subscription data for the UE, the AMF retrieves subscription data by sending Nudm_SubscriberDataManagement_Get (Nudm_SDM_Get) request message to UDM.
  • the AMF provides the indication or the transparent container to UDM.
  • AMF may provide equivalent PLMN list to UDM.
  • UDM->AMF may retrieve subscription data from UDR by using Nudr_DM_Query service operation.
  • the UDM sends Nudm_SDM_Get response message to AMF including subscription data (which is retrieved from UDR if UDM retrieved subscription data from UDR) .
  • the UDM includes RAT utilization restriction information in the response message to AMF.
  • the UDM includes RAT utilization restriction information in the response message to AMF if the RAT utilization restriction information is available.
  • the RAT utilization restriction information may be included in transparent container or secured packet.
  • the RAT utilization restriction information includes one or more of the following:
  • the RAT (s) includes e.g. NR and/or E-UTRA and/or UTRA and/or GSM
  • the RAT Type (s) includes e.g. NR, NB-IoT, LTE-M, NR_REDCAP, NR_LEO, NB_IoT_LEO and etc.
  • AMF->UDM After a successful response is received, the AMF subscribes to be notified using Nudm_SDM_Subscribe service operation when the data requested is modified, e.g. when the RAT utilization restriction information is modified. UDM may subscribe to UDR by Nudr_DM_Subscribe.
  • AMF->UE If the AMF receives RAT utilization restriction information from UDM, the AMF forwards the RAT utilization restriction information as received from UDM to UE.
  • the RAT utilization restriction information is included in a transparent container for RAT utilization restriction information, e.g. SOR transparent container, UE parameters update transparent container, or a new transparent container e.g. RAT utilization restriction information transparent container, or secured packet.
  • the transparent container in Step 6 may be the same as or different from the transparent container in Step 1.
  • the RAT utilization restriction information is included in the registration accept message sent by AMF to UE.
  • the RAT utilization restriction information is included in the registration reject message sent by AMF to UE.
  • UE The UE replaces the stored RAT utilization restriction information with the received RAT utilization restriction information.
  • the received RAT utilization restriction information is prioritized than PLMN and/or access technology combination in the "Operator Controlled PLMN Selector with Access Technology" data during PLMN selection procedure.
  • the UE indicates the RAT utilization restriction information for the serving PLMN and/or equivalent PLMN (s) to the access stratum (AS) for cell selection and cell reselection purpose.
  • UE refrains from utilizing the restricted RAT (s) for cell selection and cell reselection as per indicated by RAT utilization restriction information.
  • UE uses supported or recommended RAT (s) for cell selection and cell reselection as per indicated by RAT utilization restriction information.
  • UE->AMF In one example, if UE receives registration accept message including RAT utilization restriction information and the information includes indication that acknowledgement of successful reception of RAT utilization restriction information from the UE is requested, UE acknowledgement due to successful reception of RAT utilization restriction information is included in transparent container for RAT utilization restriction information e.g. SOR transparent container, UE parameters update transparent container, or a new transparent container e.g. RAT utilization restriction information transparent container of registration complete message.
  • RAT utilization restriction information e.g. SOR transparent container
  • UE parameters update transparent container e.g. RAT utilization restriction information transparent container of registration complete message.
  • the UE sends registration complete message to AMF.
  • AMF->UDM If the AMF receives transparent container for RAT utilization restriction information from UE, the AMF forwards to UDM. As stated in Step 8 above, the transparent container can include the indication that acknowledgement of successful reception of RAT utilization restriction information from the UE.
  • FIG. 4 shows an example flow chart for a RAT utilization restriction information provision by HPLMN during initial attach procedure or TAU procedure in EPS.
  • the numbers associated with the operations shown below correspond to the numbers shown in FIG. 4.
  • UE->MME The UE initiates the attach procedure by sending ATTACH REQUEST message to MME or initiates the tracking area updating procedure by sending TRACKING AREA UPDATE REQUEST message to MME.
  • MME is the Mobility Management Element in EPS.
  • the UE If the UE supports RAT utilization restriction information, e.g., information used by UE for restriction on utilization of certain RAT (s) , the UE includes an indication that the UE supports RAT utilization restriction information in the ATTACH REQUEST message or the TRACKING AREA UPDATE REQUEST message.
  • the indication may be included in a transparent container for RAT utilization restriction information sent to HSS via MME e.g. SOR transparent container, UE parameters update transparent container, or a new transparent container e.g. RAT utilization restriction information transparent container.
  • the transparent container includes contents that cannot be changed by a mobility management function such as a MME.
  • MME -> HSS The MME sends an Update Location Request message to HSS e.g. if there is no valid subscription context for the UE in the MME.
  • HSS is the Subscription Management Element in EPS.
  • the MME provides the indication or the transparent container to HSS.
  • MME may provide equivalent PLMN list to HSS.
  • HSS-> MME The HSS acknowledges the Update Location Request message by sending an Update Location Ack message including subscription data to the MME.
  • the HSS includes RAT utilization restriction information in the response message to MME.
  • the HSS includes RAT utilization restriction information in the response message to MME if the RAT utilization restriction information is available.
  • the RAT utilization restriction information may be included in transparent container or secured packet.
  • the RAT utilization restriction information includes one or more of the following:
  • the RAT (s) includes e.g. NR and/or E-UTRA and/or UTRA and/or GSM
  • the RAT Type (s) includes e.g. NR, NB-IoT, LTE-M, NR_REDCAP, NR_LEO, NB_IoT_LEO and etc.
  • MME->UE If the MME receives RAT utilization restriction information from HSS, the MME forwards the RAT utilization restriction information as received from UDM to UE.
  • the RAT utilization restriction information is included in a transparent container for RAT utilization restriction information, e.g. SOR transparent container, UE parameters update transparent container, or a new transparent container e.g. RAT utilization restriction information transparent container, or secured packet.
  • the transparent container in Step 4 may be the same as or different from the transparent container in Step 1.
  • the RAT utilization restriction information is included in the ATTACH ACCEPT message or the TRACKING AREA UPDATE ACCEPT message sent by MME to UE.
  • the RAT utilization restriction information is included in the ATTACH REJECT message or the TRACKING AREA UPDATE REJECT message sent by MME to UE.
  • the UE replaces the stored RAT utilization restriction information with the received RAT utilization restriction information.
  • the received RAT utilization restriction information is prioritized than PLMN and/or access technology combination in the "Operator Controlled PLMN Selector with Access Technology" data during PLMN selection procedure.
  • the UE indicates the RAT utilization restriction information for the serving PLMN and/or equivalent PLMN (s) to the access stratum (AS) for cell selection and cell reselection purpose.
  • UE refrains from utilizing the restricted RAT (s) for cell selection and cell reselection as per indicated by RAT utilization restriction information.
  • UE uses supported or recommended RAT (s) for cell selection and cell reselection as per indicated by RAT utilization restriction information.
  • UE->MME In one example, if UE receives ATTACH ACCEPT message or the TRACKING AREA UPDATE ACCEPT message including RAT utilization restriction information and the information includes indication that acknowledgement of successful reception of RAT utilization restriction information from the UE is requested, UE acknowledgement due to successful reception of RAT utilization restriction information is included in transparent container for RAT utilization restriction information e.g. SOR transparent container, UE parameters update transparent container, or a new transparent container e.g. RAT utilization restriction information transparent container of ATTACH COMPLETE message or the TRACKING AREA UPDATE COMPLETE message.
  • RAT utilization restriction information e.g. SOR transparent container
  • UE parameters update transparent container e.g. RAT utilization restriction information transparent container of ATTACH COMPLETE message or the TRACKING AREA UPDATE COMPLETE message.
  • the UE sends ATTACH COMPLETE message or the TRACKING AREA UPDATE COMPLETE message to MME.
  • MME->HSS If the MME receives transparent container for RAT utilization restriction information from UE, the MME forwards to HSS in e.g., Notify Request message.
  • the request message includes transparent container for RAT utilization restriction information which includes indication that UE supports RAT utilization restriction information
  • ⁇ RAT utilization restriction information includes list (s) of restricted RAT (s) and/or list (s) of restricted RAT Type (s) for any PLMN e.g., serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • ⁇ RAT utilization restriction information may include list (s) of supported or recommended RAT(s) and/or list of supported or recommended RAT Type (s) for any PLMN e.g., serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • the RAT utilization restriction information is included in registration accept/attach accept/TAU accept message or included in registration reject/attach reject/TAU reject message
  • Mobility Management Element (MME in EPS/AMF in 5GS) :
  • the request message includes transparent container for RAT utilization restriction information which includes indication that UE supports RAT utilization restriction information
  • ⁇ RAT utilization restriction information may include list (s) of supported or recommended RAT(s) and/or list of supported or recommended RAT Type (s) for any PLMN e.g. serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • PLMN e.g. serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • ⁇ RAT utilization restriction information includes indication that acknowledgement of successful reception of RAT utilization restriction information from the UE is requested
  • ⁇ RAT utilization restriction information includes list (s) of restricted RAT (s) and/or list (s) of restricted RAT Type (s) for any PLMN e.g., serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • ⁇ RAT utilization restriction information may include list (s) of supported or recommended RAT(s) and/or list of supported or recommended RAT Type (s) for any PLMN e.g. serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • PLMN e.g. serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • ⁇ RAT utilization restriction information includes indication that acknowledgement of successful reception of RAT utilization restriction information from the UE is requested
  • the RAT utilization restriction information is included in registration accept/attach accept/TAU accept message or included in registration reject/attach reject/TAU reject message
  • ⁇ RAT utilization restriction information includes list (s) of restricted RAT (s) and/or list (s) of restricted RAT Type (s) for any PLMN e.g., serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • ⁇ RAT utilization restriction information may include list (s) of supported or recommended RAT(s) and/or list of supported or recommended RAT Type (s) for any PLMN e.g. serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • PLMN e.g. serving PLMN and/or equivalent PLMN (s) and/or any other PLMN (s)
  • ⁇ RAT utilization restriction information includes indication that acknowledgement of successful reception of RAT utilization restriction information from the UE is requested
  • FIG. 5 shows an exemplary block diagram of a hardware platform 500 that may be a part of a network device (e.g., base station) or a communication device (e.g., a user equipment (UE) ) .
  • the hardware platform 500 includes at least one processor 510 and a memory 505 having instructions stored thereupon. The instructions upon execution by the processor 510 configure the hardware platform 500 to perform the operations described in FIGS. 1 to 4 and 6 to 9 in the various embodiments described in this patent document.
  • the transmitter 515 transmits or sends information or data to another device.
  • a network device transmitter can send a message to a user equipment.
  • the receiver 520 receives information or data transmitted or sent by another device.
  • a user equipment can receive a message from a network device.
  • FIG. 6 shows an example of a wireless communication system (e.g., a 5G or NR cellular network) that includes a base station 620 and one or more user equipment (UE) 611, 612 and 613.
  • the UEs access the BS (e.g., the network) using a communication link to the network (sometimes called uplink direction, as depicted by dashed arrows 631, 632, 633) , which then enables subsequent communication (e.g., shown in the direction from the network to the UEs, sometimes called downlink direction, shown by arrows 641, 642, 643) from the BS to the UEs.
  • a wireless communication system e.g., a 5G or NR cellular network
  • the UEs access the BS (e.g., the network) using a communication link to the network (sometimes called uplink direction, as depicted by dashed arrows 631, 632, 633) , which then enables subsequent communication (e.g.,
  • the BS send information to the UEs (sometimes called downlink direction, as depicted by arrows 641, 642, 643) , which then enables subsequent communication (e.g., shown in the direction from the UEs to the BS, sometimes called uplink direction, shown by dashed arrows 631, 632, 633) from the UEs to the BS.
  • the UE may be, for example, a smartphone, a tablet, a mobile computer, a machine to machine (M2M) device, an Internet of Things (IoT) device, and so on.
  • M2M machine to machine
  • IoT Internet of Things
  • FIG. 7 shows an exemplary flowchart for receiving radio access technology (RAT) utilization restriction information.
  • Operation 702 includes sending, by a communication device to a device comprising a mobility management function, an indication that the communication device supports radio access technology (RAT) utilization restriction information.
  • Operation 704 includes receiving, by the communication device from the device, the RAT utilization restriction information, where the indication and the RAT utilization restriction information are sent and received using a transparent container.
  • RAT radio access technology
  • the RAT utilization restriction information includes a first set of one or more lists of one or more restricted RATs for one or more public land mobile networks (PLMNs) and/or a second set of one or more lists of one or more restricted RAT types for one or more PLMNs.
  • RAT utilization restriction information includes one or more lists of one or more supported RATs or one or more recommended RATs and/or one or more lists of one or more supported RAT Types or one or more recommended RAT Types for one or more public land mobile networks (PLMNs) .
  • the one or more PLMNs includes one or more of any PLMN that includes a serving PLMN, an equivalent PLMN equivalent to the serving PLMN, or another PLMN that is not the serving PLMN or the equivalent PLMN.
  • the RAT utilization restriction information includes an indication that an acknowledgement of successful reception of the RAT utilization restriction information is requested from the communication device.
  • the RAT utilization restriction information is included in one or more of the following messages: a registration accept message, an attach accept message, a tracking area updating (TAU) accept message, a registration reject message, an attach reject message, or a TAU reject message.
  • the method further comprises performing, by the communication device, an operation in response to receiving the RAT utilization restriction information, wherein the operation comprises any one or more of: replacing stored RAT utilization restriction information with the RAT utilization restriction information received by the communication device, prioritizing the RAT utilization restriction information that is received over a public land mobile network (PLMN) and/or access technology combination in an operator controlled PLMN selector with access technology data during a PLMN selection procedure, indicating the RAT utilization restriction information for a serving PLMN and/or one or more equivalent PLMNs to an access stratum (AS) for cell selection and/or cell reselection, refraining from utilizing one or more restricted RATs for the cell selection and/or the cell reselection as indicated by the RAT utilization restriction information, or utilizing one or more supported or recommended RATs for the cell selection and/or the cell reselection as indicated by the RAT utilization restriction information.
  • PLMN public land mobile network
  • AS access stratum
  • the method further comprises transmitting, by the communication device to the mobility management function, an acknowledgement of successful reception of the RAT utilization restriction information.
  • the mobility management function incudes a mobility management entity (MME) or an access and mobility management function (AMF) .
  • FIG. 8 shows an exemplary flowchart for transmitting radio access technology (RAT) utilization restriction information.
  • Operation 802 includes receiving, by a device comprising a mobility management function from a second device comprising a subscription management function, radio access technology (RAT) utilization restriction information.
  • Operation 804 includes transmitting, by the device to a communication device, the RAT utilization restriction information, where the RAT utilization restriction information are received and transmitted using a transparent container.
  • RAT radio access technology
  • the RAT utilization restriction information includes a first set of one or more lists of one or more restricted RATs for one or more public land mobile networks (PLMNs) and/or a second set of one or more lists of one or more restricted RAT types for one or more PLMNs.
  • RAT utilization restriction information includes one or more lists of one or more supported RATs or one or more recommended RATs and/or one or more lists of one or more supported RAT Types or one or more recommended RAT Types for one or more public land mobile networks (PLMNs) .
  • the one or more PLMNs includes one or more of any PLMN that include a serving PLMN, an equivalent PLMN equivalent to the serving PLMN, or another PLMN that is not the serving PLMN or the equivalent PLMN.
  • the RAT utilization restriction information includes an indication that an acknowledgement of successful reception of the RAT utilization restriction information is requested from the communication device.
  • the RAT utilization restriction information sent to communication device is included in one or more of the following messages: a registration accept message, an attach accept message, a tracking area updating (TAU) accept message, a registration reject message, an attach reject message, or a TAU reject message.
  • the method further comprises receiving, by the device from the communication device, an indication that the communication device supports the RAT utilization restriction information; and sending, by the device to a second device comprising a subscription management function, the indication that the communication device supports RAT utilization restriction information using the transparent container.
  • the device sends to the second device a list of equivalent PLMN.
  • the method further comprises sending, by the device to a second device comprising a subscription management function, a message that indicates that the mobility management function subscribes to be notified when the RAT utilization restriction information is modified.
  • the method further comprises receiving, by the device from the communication device, an acknowledgement of a successful reception of the RAT utilization restriction information sent using the transparent container; and sending, by the device to the second device, an acknowledgement that the RAT utilization restriction information is successfully received by the communication device.
  • the subscription management function includes a home subscriber server (HSS) or a unified data management (UDM) .
  • the mobility management function incudes a mobility management entity (MME) or an access and mobility management function (AMF) .
  • FIG. 9 shows another exemplary flowchart for transmitting radio access technology (RAT) utilization restriction information.
  • Operation 902 includes receiving, by a second device comprising a subscription management function from a device comprising a mobility management function, an indication that a communication device supports RAT utilization restriction information.
  • Operation 904 includes transmitting, by the second device to the device, the RAT utilization restriction information, where the indication and the RAT utilization restriction information are received and transmitted using a transparent container.
  • RAT radio access technology
  • the RAT utilization restriction information includes a first set of one or more lists of one or more restricted RATs for one or more public land mobile networks (PLMNs) and/or a second set of one or more lists of one or more restricted RAT types for one or more PLMNs.
  • the RAT utilization restriction information includes one or more lists of one or more supported RATs or one or more recommended RATs and/or one or more lists of one or more supported RAT Types or one or more recommended RAT Types for one or more public land mobile networks (PLMNs) .
  • the one or more PLMNs includes one or more of any PLMN that includes a serving PLMN, an equivalent PLMN equivalent to the serving PLMN, or another PLMN that is not the serving PLMN or the equivalent PLMN.
  • the RAT utilization restriction information includes an indication that an acknowledgement of a successful reception of the RAT utilization restriction information is requested from the communication device.
  • the method further comprises receiving, by the second device from the device, a message that indicates that the mobility management function subscribes to be notified when the RAT utilization restriction information is modified. In some embodiments, the method further comprises receiving, by the second device from the device, an acknowledgement of a successful reception of the RAT utilization restriction information.
  • the subscription management function includes a home subscriber server (HSS) or a unified data management (UDM) .
  • a computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM) , Random Access Memory (RAM) , compact discs (CDs) , digital versatile discs (DVD) , etc. Therefore, the computer-readable media can include a non-transitory storage media.
  • program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types.
  • Computer-or processor-executable instructions, associated data structures, and program modules represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.
  • a hardware circuit implementation can include discrete analog and/or digital components that are, for example, integrated as part of a printed circuit board.
  • the disclosed components or modules can be implemented as an Application Specific Integrated Circuit (ASIC) and/or as a Field Programmable Gate Array (FPGA) device.
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • DSP digital signal processor
  • the various components or sub-components within each module may be implemented in software, hardware or firmware.
  • the connectivity between the modules and/or components within the modules may be provided using any one of the connectivity methods and media that is known in the art, including, but not limited to, communications over the Internet, wired, or wireless networks using the appropriate protocols.

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

Abstract

L'invention concerne des procédés, un appareil et un support de stockage non transitoire de programme lisible par ordinateur pour des communications sans fil. Le procédé consiste à envoyer par un dispositif de communication à un dispositif comprenant une fonction de gestion de mobilité une indication selon laquelle le dispositif de communication prend en charge des informations de restriction d'utilisation de technologie d'accès radio (RAT) ; et recevoir par le dispositif de communication depuis le dispositif, des informations de restriction d'utilisation de la RAT, l'indication et les informations de restriction d'utilisation de la RAT étant envoyées et reçues en utilisant un conteneur transparent.
PCT/CN2024/105440 2024-07-15 2024-07-15 Techniques pour restreindre l'utilisation d'une technologie d'accès radio d'un réseau mobile terrestre public Pending WO2025227503A1 (fr)

Priority Applications (1)

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PCT/CN2024/105440 WO2025227503A1 (fr) 2024-07-15 2024-07-15 Techniques pour restreindre l'utilisation d'une technologie d'accès radio d'un réseau mobile terrestre public

Applications Claiming Priority (1)

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PCT/CN2024/105440 WO2025227503A1 (fr) 2024-07-15 2024-07-15 Techniques pour restreindre l'utilisation d'une technologie d'accès radio d'un réseau mobile terrestre public

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Citations (5)

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Publication number Priority date Publication date Assignee Title
CN108616957A (zh) * 2016-12-09 2018-10-02 大唐移动通信设备有限公司 指示无线接入技术类型的方法、基站及移动性管理实体
CN111567082A (zh) * 2017-12-21 2020-08-21 瑞典爱立信有限公司 Lte与nr之间的业务引导
CN114503622A (zh) * 2019-09-27 2022-05-13 瑞典爱立信有限公司 用于接入或rat限制的方法和装置
CN116783913A (zh) * 2021-01-26 2023-09-19 三星电子株式会社 用于在无线通信系统配置会话的方法和装置
US20240121744A1 (en) * 2021-01-15 2024-04-11 Samsung Electronics Co., Ltd. Method and device for supporting communication by using satellite in wireless communication system

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Publication number Priority date Publication date Assignee Title
CN108616957A (zh) * 2016-12-09 2018-10-02 大唐移动通信设备有限公司 指示无线接入技术类型的方法、基站及移动性管理实体
CN111567082A (zh) * 2017-12-21 2020-08-21 瑞典爱立信有限公司 Lte与nr之间的业务引导
CN114503622A (zh) * 2019-09-27 2022-05-13 瑞典爱立信有限公司 用于接入或rat限制的方法和装置
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