WO2022153749A1 - ユーザ機器、ネットワークノード及び基地局 - Google Patents

ユーザ機器、ネットワークノード及び基地局 Download PDF

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Publication number
WO2022153749A1
WO2022153749A1 PCT/JP2021/045586 JP2021045586W WO2022153749A1 WO 2022153749 A1 WO2022153749 A1 WO 2022153749A1 JP 2021045586 W JP2021045586 W JP 2021045586W WO 2022153749 A1 WO2022153749 A1 WO 2022153749A1
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WIPO (PCT)
Prior art keywords
user device
processing unit
busy
base station
message
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Ceased
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PCT/JP2021/045586
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English (en)
French (fr)
Japanese (ja)
Inventor
智之 山本
秀明 ▲高▼橋
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Denso Corp
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Denso Corp
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Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to CN202180090112.9A priority Critical patent/CN116830620A/zh
Priority to EP21919638.3A priority patent/EP4280644A4/en
Publication of WO2022153749A1 publication Critical patent/WO2022153749A1/ja
Priority to US18/349,644 priority patent/US20230354265A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/12—Inter-network notification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • This disclosure relates to user equipment, network nodes and base stations.
  • Release 17 of 3GPP is a function to monitor incoming information (for example, voice or data) from networks of multiple carriers for devices equipped with multiple SIM (Subscriber Identity Module) cards. Work items have been launched to formulate.
  • 3GPP 3rd Generation Partnership Project
  • Non-Patent Document 1-3 when a user device (User Equipment: UE) receives a paging message on another network while communicating on one network, the AMF (AMF) of the other network is described. It is described that a busy indication is sent to Access and Mobility Management Function).
  • UE User Equipment
  • AMF Access and Mobility Management Function
  • Non-Patent Document 1 the AMF stops the escalation and repeat of the paging that triggered the busy instruction in response to the busy instruction.
  • the AMF stops all subsequent paging to the UE in response to the reception of the busy instruction even if there is important incoming information to the UE, the above A problem has been found in which the UE cannot know the existence of the important incoming information.
  • the inventor may repeat unnecessary paging if the AMF stops only the paging that triggered the busy instruction and does not stop the subsequent paging in response to the reception of the busy instruction. I found the problem that there is.
  • the purpose of this disclosure is to provide user equipment, network nodes and base stations that enable important paging while reducing unnecessary paging.
  • the user equipment includes a reception processing unit that receives a paging message transmitted by a base station, busy information indicating that the user equipment is busy in response to the paging message, and exceptionally. It is provided with a transmission processing unit that transmits exception service information indicating a service that permits paging.
  • the network node in the core network includes a transmission processing unit that transmits a message for paging to a user device to a base station, and a paging message transmitted by the base station in response to the message. It is provided with a reception processing unit that receives busy information and exception service information transmitted by the user equipment accordingly.
  • the busy information indicates that the user device is busy
  • the exception service information indicates a service that allows paging exceptionally.
  • the base station includes a transmission processing unit that transmits a paging message, and a reception processing unit that receives busy information and exception service information transmitted by a user device in response to the paging message.
  • the busy information indicates that the user device is busy
  • the exception service information indicates a service that allows paging exceptionally.
  • FIG. 1 It is a block diagram which shows the example of the schematic hardware configuration of the network node which concerns on embodiment of this disclosure. It is a figure which shows the example of the content of the SERVICE REQUEST message which concerns on embodiment of this disclosure. It is a figure which shows the example of the content of the Service Type included in the SERVICE REQUEST message which concerns on embodiment of this disclosure. It is a figure which shows the example of the content of Allowed Access Services included in the SERVICE REQUEST message which concerns on embodiment of this disclosure. It is a figure which shows the example of the access category which concerns on embodiment of this disclosure. It is a sequence diagram for demonstrating the example of the schematic flow of the process which concerns on embodiment of this disclosure. It is a sequence diagram for demonstrating the example of the schematic flow of the process which concerns on the 1st modification of the Embodiment of this disclosure.
  • system 1 includes base station 100, user equipment (UE) 200 and core network 30.
  • the core network 30 includes a network node 300.
  • system 1 is a system that conforms to the technical specifications (TS) of 3GPP (Third Generation Partnership Project). More specifically, for example, the system 1 is a 5G or NR (New Radio) TS compliant system. Of course, System 1 is not limited to this example.
  • the base station 100 is a node of a radio access network (RAN) and communicates with a UE (for example, UE 200) located in the coverage area 10 of the base station 100.
  • RAN radio access network
  • base station 100 communicates with a UE (eg, UE 200) using the RAN protocol stack.
  • the protocol stack includes an RRC (Radio Resource Control) layer, a SDAP (Service Data Adaptation Protocol) layer, a PDCP (Packet Data Convergence Protocol) layer, an RLC (Radio Link Control) layer, a MAC (Medium Access Control) layer, and physical. Includes (Physical: PHY) layer.
  • the protocol stack may not include all of these layers, but may include some of these layers.
  • the base station 100 is gNB.
  • the gNB is a node that provides the NR user plane and control plane protocol termination (NR user plane and control plane protocol terminations towards the UE) for the UE, and is connected to the 5GC (5G Core Network) via the NG interface.
  • the base station 100 may be an en-gNB.
  • the base station 100 may include a plurality of nodes.
  • the plurality of nodes may include a first node that hosts a higher layer included in the protocol stack and a second node that hosts a lower layer included in the protocol stack. good.
  • the upper layer may include an RRC layer, a SDAP layer and a PDCP layer, and the lower layer may include an RLC layer, a MAC layer and a PHY layer.
  • the first node may be a CU (central unit), and the second node may be a DU (Distributed Unit).
  • the plurality of nodes may include a third node that performs processing lower than the PHY layer, and the second node may perform processing higher than the PHY layer.
  • the third node may be a RU (Radio Unit).
  • the base station 100 may be one of the plurality of nodes, or may be connected to another unit of the plurality of nodes.
  • the base station 100 may be an IAB (Integrated Access and Backhaul) donor or an IAB node.
  • IAB Integrated Access and Backhaul
  • the UE 200 communicates with the base station.
  • the UE 200 communicates with the base station 100 when it is located within the coverage area 10 of the base station 100.
  • the UE 200 communicates with a base station (for example, base station 100) using the protocol stack.
  • a base station for example, base station 100
  • the UE 200 can be equipped with two or more SIM cards. That is, the UE 200 is a multi-SIM UE or a multi-SIM device. The UE 200 can communicate in two or more mobile networks corresponding to the two or more SIM cards.
  • the UE 200 is a mobile network corresponding to one of the two or more SIM cards, and is referred to as the mobile network including the base station 100 and the network node 300 (hereinafter, referred to as a “first mobile network”). ) Can communicate. Further, the UE 200 can communicate in a mobile network (hereinafter, referred to as "second mobile network”) corresponding to the other of the two or more SIM cards.
  • second mobile network a mobile network corresponding to the other of the two or more SIM cards.
  • the UE 200 can communicate with the first mobile network including the base station 100 and the second mobile network including the base station 40.
  • the UE 200 may be in the RRC idle state or the RRC inactive state in the first mobile network and may be in the RRC connected state in the second mobile network.
  • the UE 200 may receive the paging message transmitted by the base station 100 in the first mobile network while communicating with the base station 40 in the second mobile network.
  • the network node 300 is a network function of the core network 30.
  • the network node 300 is an AMF (Access and Mobility Management Function).
  • Base station configuration> An example of the configuration of the base station 100 according to the embodiment of the present disclosure will be described with reference to FIGS. 3 and 4.
  • the base station 100 includes a wireless communication unit 110, a network communication unit 120, a storage unit 130, and a processing unit 140.
  • the wireless communication unit 110 wirelessly transmits and receives signals. For example, the wireless communication unit 110 receives a signal from the UE and transmits a signal to the UE.
  • the network communication unit 120 receives a signal from the network and transmits the signal to the network.
  • the storage unit 130 stores various information.
  • the processing unit 140 provides various functions of the base station 100.
  • the processing unit 140 includes a first transmission processing unit 141, a first reception processing unit 143, a second transmission processing unit 145, and a second reception processing unit 147.
  • the processing unit 140 may further include other components other than these components. That is, the processing unit 140 may perform operations other than the operations of these components. Specific operations of the first transmission processing unit 141, the first reception processing unit 143, the second transmission processing unit 145, and the second reception processing unit 147 will be described in detail later.
  • the processing unit 140 (first transmission processing unit 141 and first reception processing unit 143) communicates with the UE (for example, UE 200) via the wireless communication unit 110.
  • the processing unit 140 (second transmission processing unit 145 and second reception processing unit 147) and another node (for example, a network node 300 in the core network 30 or another base station) via the network communication unit 120. connect.
  • base station 100 includes antenna 181, RF circuit 183, network interface 185, processor 187, memory 189 and storage 191.
  • Antenna 181 converts the signal into radio waves and radiates the radio waves into space. Further, the antenna 181 receives a radio wave in space and converts the radio wave into a signal.
  • the antenna 181 may include a transmitting antenna and a receiving antenna, or may be a single antenna for transmission and reception.
  • the antenna 181 may be a directional antenna or may include a plurality of antenna elements.
  • the RF circuit 183 performs analog processing of signals transmitted and received via the antenna 181.
  • the RF circuit 183 may include a high frequency filter, an amplifier, a modulator, a low pass filter, and the like.
  • the network interface 185 is, for example, a network adapter, which transmits a signal to the network and receives a signal from the network.
  • the processor 187 digitally processes signals transmitted and received via the antenna 181 and the RF circuit 183.
  • the digital processing includes processing of the RAN protocol stack.
  • the processor 187 also processes signals transmitted and received via the network interface 185.
  • the processor 187 may include a plurality of processors or may be a single processor.
  • the plurality of processors may include a baseband processor that performs the digital processing and one or more processors that perform other processing.
  • the memory 189 stores a program executed by the processor 187, parameters related to the program, and data related to the program.
  • the memory 189 may include at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a RAM (Random Access Memory), and a flash memory. All or part of the memory 189 may be contained within the processor 187.
  • Storage 191 stores various information.
  • the storage 191 may include at least one of an SSD (Solid State Drive) and an HDD (Hard Disc Drive).
  • the wireless communication unit 110 may be mounted by the antenna 181 and the RF circuit 183.
  • the network communication unit 120 may be implemented by the network interface 185.
  • the storage unit 130 may be implemented by the storage 191.
  • the processing unit 140 may be implemented by the processor 187 and the memory 189.
  • Part or all of the processing unit 140 may be virtualized. In other words, a part or all of the processing unit 140 may be implemented as a virtual machine. In this case, a part or all of the processing unit 140 may operate as a virtual machine on a physical machine (that is, hardware) including a processor, a memory, and the like and a hypervisor.
  • a physical machine that is, hardware
  • the base station 100 may include a memory for storing a program (that is, memory 189) and one or more processors (that is, processor 187) capable of executing the program.
  • the one or more processors may execute the above program to operate the processing unit 140.
  • the above program may be a program for causing the processor to execute the operation of the processing unit 140.
  • the UE 200 includes a wireless communication unit 210, a storage unit 220, and a processing unit 230.
  • the wireless communication unit 210 wirelessly transmits and receives signals. For example, the wireless communication unit 210 receives a signal from the base station and transmits a signal to the base station. For example, the wireless communication unit 210 receives a signal from another UE and transmits a signal to the other UE.
  • the storage unit 220 stores various information.
  • the processing unit 230 provides various functions of the UE 200.
  • the processing unit 230 includes a reception processing unit 231 and a transmission processing unit 233.
  • the processing unit 230 may further include other components other than these components. That is, the processing unit 230 may perform operations other than the operations of these components.
  • the specific operations of the reception processing unit 231 and the transmission processing unit 233 will be described in detail later.
  • the processing unit 230 (reception processing unit 231 and transmission processing unit 233) communicates with a base station (for example, base station 100 or base station 40) or another UE via a wireless communication unit 210.
  • a base station for example, base station 100 or base station 40
  • another UE via a wireless communication unit 210.
  • the UE 200 includes an antenna 281, an RF circuit 283, a processor 285, a memory 287 and a storage 289.
  • Antenna 281 converts the signal into radio waves and radiates the radio waves into space. Further, the antenna 281 receives a radio wave in space and converts the radio wave into a signal.
  • the antenna 281 may include a transmitting antenna and a receiving antenna, or may be a single antenna for transmission and reception.
  • the antenna 281 may be a directional antenna or may include a plurality of antenna elements.
  • the RF circuit 283 performs analog processing of signals transmitted and received via the antenna 281.
  • the RF circuit 283 may include a high frequency filter, an amplifier, a modulator, a low pass filter and the like.
  • the processor 285 digitally processes signals transmitted and received via the antenna 281 and the RF circuit 283.
  • the digital processing includes processing of the RAN protocol stack.
  • the processor 285 may include a plurality of processors or may be a single processor.
  • the plurality of processors may include a baseband processor that performs the digital processing and one or more processors that perform other processing.
  • the memory 287 stores a program executed by the processor 285, parameters related to the program, and data related to the program.
  • the memory 287 may include at least one of ROM, EPROM, EEPROM, RAM and flash memory. All or part of the memory 287 may be contained within the processor 285.
  • Storage 289 stores various information.
  • the storage 289 may include at least one of SSD and HDD.
  • the wireless communication unit 210 may be mounted by the antenna 281 and the RF circuit 283.
  • the storage unit 220 may be implemented by the storage 289.
  • the processing unit 230 may be implemented by the processor 285 and the memory 287.
  • the processing unit 230 may be implemented by a SoC (System on Chip) including a processor 285 and a memory 287.
  • the SoC may include an RF circuit 283, and the wireless communication unit 210 may also be implemented by the SoC.
  • the UE 200 may include a memory for storing a program (that is, memory 287) and one or more processors (that is, a processor 285) capable of executing the program.
  • One or more processors may execute the above program to operate the processing unit 230.
  • the above program may be a program for causing the processor to execute the operation of the processing unit 230.
  • Network node configuration An example of the configuration of the network node 300 according to the embodiment of the present disclosure will be described with reference to FIGS. 7 and 8.
  • the network node 300 includes a network communication unit 310, a storage unit 320, and a processing unit 330.
  • the network communication unit 310 receives a signal from the network and transmits the signal to the network.
  • the storage unit 320 stores various information.
  • the processing unit 330 provides various functions of the network node 300.
  • the processing unit 330 includes a transmission processing unit 331 and a reception processing unit 333.
  • the processing unit 330 may further include other components other than these components. That is, the processing unit 330 may perform operations other than the operations of these components.
  • the specific operations of the transmission processing unit 331 and the reception processing unit 333 will be described in detail later.
  • the processing unit 330 (transmission processing unit 331 and reception processing unit 333) communicates with a base station (for example, base station 100) via the network communication unit 310.
  • the processing unit 330 (transmission processing unit 331 and reception processing unit 333) communicates with the UE (for example, UE 200) via the base station (for example, base station 100) via the network communication unit 310.
  • the network node 300 includes a network interface 381, a processor 383, a memory 385 and a storage 387.
  • the network interface 381 is, for example, a network adapter, which transmits a signal to the network and receives a signal from the network.
  • the processor 383 processes signals transmitted and received via the network interface 381.
  • the processor 383 may include a plurality of processors or may be a single processor.
  • the memory 385 stores a program executed by the processor 383, parameters related to the program, and data related to the program.
  • the memory 385 may include at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a RAM (Random Access Memory), and a flash memory. All or part of the memory 385 may be contained within the processor 383.
  • Storage 387 stores various information.
  • the storage 387 may include at least one of an SSD (Solid State Drive) and an HDD (Hard Disc Drive).
  • the network communication unit 310 may be implemented by the network interface 381.
  • the storage unit 320 may be implemented by the storage 387.
  • the processing unit 330 may be implemented by the processor 383 and the memory 385.
  • Part or all of the processing unit 330 may be virtualized. In other words, a part or all of the processing unit 330 may be implemented as a virtual machine. In this case, a part or all of the processing unit 330 may operate as a virtual machine on a physical machine (that is, hardware) including a processor, a memory, and the like and a hypervisor.
  • a physical machine that is, hardware
  • the network node 300 may include a memory for storing a program (that is, memory 385) and one or more processors (that is, processor 383) capable of executing the program.
  • the one or more processors may execute the above program to operate the processing unit 330.
  • the above program may be a program for causing the processor to execute the operation of the processing unit 330.
  • the network node 300 transmits a message for paging to the UE 200 to the base station 100.
  • the base station 100 receives the message from the network node 300.
  • the above message is a paging message of the NGAP (NG Application Protocol) layer.
  • NGAP NG Application Protocol
  • the above message includes the ID of the UE 200.
  • the ID is UE200's 5G-S-TMSI (Temporary Mobile Subscriber Identity).
  • the above message includes a TAI (Tracking Area Identity) list for paging, a paging priority, and the like.
  • the base station 100 (first transmission processing unit 141) transmits a paging message.
  • the UE 200 (reception processing unit 231) receives the paging message.
  • the base station 100 (first transmission processing unit 141) transmits the paging message in response to the message transmitted by the network node 300.
  • the above paging message is an RRC layer paging message.
  • the above paging message includes the ID of the UE 200. More specifically, for example, the paging message includes a list of paging records, and one paging record in the list includes the ID of the UE 200.
  • the ID is UE200's 5G-S-TMSI or full I-RNTI (Inactive Radio Network Temporary Identifier).
  • the UE 200 (transmission processing unit 233) permits busy information indicating that the UE 200 is busy and, exceptionally, paging in response to the paging message. Exception service information indicating the service is sent.
  • the network node 300 receives the busy information and the exception service information.
  • the UE 200 transmits a NAS (non-access stratum) message including the busy information and the exception service information to the network node 300 in response to the paging message.
  • the network node 300 receives the NAS message.
  • the NAS message is transmitted from the UE 200 to the network node 300 via the base station 100.
  • the NAS message is a SERVICE REQUEST message.
  • the SERVICE REQUEST message includes Service Type, 5G-S-TMSI, Allowed access categories, etc. as information elements.
  • the busy information and the exception service information can be transmitted by using the existing message in the existing procedure. That is, the influence on the existing mechanism can be reduced.
  • the busy information is a Service Type included in the SERVICE REQUEST message, and is the Service Type indicating that the UE 200 is busy.
  • the SERVICE REQUEST message includes a Service Type.
  • the Service Type is an information element for specifying the purpose of the service request procedure. For example, the Service Type indicates that the UE 200 is busy.
  • the Service Type included in the SERVICE REQUEST message is a 1-octet information element, and includes a 4-bit Service Type IEI and a 4-bit Service Type value.
  • the Service type value is a busy instruction when the value is a predetermined value (that is, 0111). As described above, the Service Type indicates that the UE 200 is busy.
  • busy information can be transmitted without adding a new information element to an existing message. That is, the influence on the existing mechanism can be made very small.
  • the above-mentioned exception service information indicates one or more of a plurality of access categories as the above-mentioned service that allows paging exceptionally.
  • each of the plurality of access categories is defined by a combination of conditions relating to the UE and the type of access attempt.
  • the exception service information is an information element (for example, Allowed access categories) included in the SERVICE REQUEST message.
  • the Allowed access services included in the SERVICE REQUEST message includes one or more Access services.
  • the one or more Access categories indicate one or more of the plurality of access categories shown in the example of FIG. As shown in FIG. 12, each of the plurality of access categories is defined by a condition related to UE (Conditions related to UE) and a type of access attempt (Type of access attempt).
  • the exception service information is not limited to the above example.
  • the exception service information may indicate other items that classify the service as the service that allows paging exceptionally.
  • the other item may be 5QI (5G QoS Identifier).
  • the UE 200 transmits the busy information and the exception service information in response to the paging message.
  • the UE 200 (transmission processing unit 233) is more than the communication in the first mobile network in which the UE 200 is communicating in the second mobile network and corresponding to the paging message.
  • the UE 200 gives priority to communication in the second mobile network, the busy information and the exception service information are transmitted in response to the paging message.
  • the UE 200 is in the RRC idle state or the RRC inactive state in the first mobile network including the base station 100, and communicates with the base station 40 in the second mobile network. ..
  • the UE 200 receives a paging message including the ID of the UE 200 from the base station 100.
  • the UE 200 determines which of the communication in the first mobile network corresponding to the paging message and the communication in the second mobile network is prioritized (or which one is preferred).
  • the UE 200 transmits the busy information and the exception service information when it is determined that the communication in the second mobile network is prioritized (or preferred).
  • the UE 200 starts the connection establishment in the first mobile network.
  • busy information and exception service information can be transmitted only when necessary.
  • the determination by the UE 200 described above can be said to be a determination as to whether to start establishing a connection in the first mobile network or to transmit the busy information.
  • the network node 300 controls paging to the UE 200 based on the exception service information.
  • the network node 300 transmits a message for paging to the UE 200 to the base station 100 for the service indicated by the exception service information.
  • the network node 300 does not transmit a message for paging to the UE 200 for the service not indicated by the exception service information.
  • the UE 200 is in the RRC idle state or the RRC inactive state in the first mobile network including the base station 100 and the network node 300, and is in the RRC connected state in the second mobile network including the base station 40. It is connected to the base station 400.
  • the network node 300 transmits a message for paging to the UE 200 to the base station 100 (S310).
  • the base station 100 receives the message from the network node 300.
  • the base station 100 transmits a paging message in response to the above message (S320).
  • the UE 200 receives the paging message.
  • the UE 200 determines which of the communication in the first mobile network corresponding to the paging message and the communication in the second mobile network is prioritized (or which one is preferred) (S330).
  • the UE 200 When the UE 200 gives priority to (or prefers) communication in the second mobile network, the UE 200 transmits a NAS message including busy information and exception service information to the network node 300 via the base station 100 (S340).
  • the network node 300 receives the NAS message.
  • the busy information indicates that the UE 200 is busy
  • the exception service information indicates a service that exceptionally allows paging.
  • the UE 200 (transmission processing unit 233) networks the NAS message including the busy information and the exception service information in response to the paging message.
  • the network node 300 (reception processing unit 333) receives the NAS message.
  • the embodiments of the present disclosure are not limited to this example.
  • the UE 200 may transmit the busy information and the exception service information to the base station 100 in response to the paging message. ..
  • the base station 100 (first reception processing unit 143) may receive the busy information and the exception service information from the UE 200.
  • the UE 200 may transmit an RRC message including the busy information and the exception service information to the base station 100 in response to the paging message.
  • the base station 100 (first reception processing unit 143) may receive the RRC message.
  • the busy information and the exception service information are not included in the NAS message, but may be information elements included in the RRC message.
  • the base station 100 may transmit the busy information and the exception service information to the network node 300.
  • the network node 300 (reception processing unit 333) may receive the busy information and the exception service information from the base station 100.
  • the base station 100 may transmit an NGAP message including the busy information and the exception service information to the network node 300.
  • the network node 300 (reception processing unit 333) may receive the NGAP message from the base station 100.
  • the network node 300 can finally receive the busy information and the exception service information.
  • steps S310 to S330 shown in FIG. 14 is the same as the description of steps S310 to S330 shown in FIG. Therefore, a duplicate description will be omitted here.
  • the UE 200 transmits an RRC message including busy information and exception service information to the base station 100 when giving priority to communication in the second mobile network (S343).
  • the base station 100 receives the RRC message.
  • the busy information indicates that the UE 200 is busy
  • the exception service information indicates a service that exceptionally allows paging.
  • the base station 100 transmits an NGAP message including the busy information and the exception service information to the network node 300 (S347).
  • the network node 300 receives the NGAP message.
  • the system 1 is a 5G or NR TS-compliant system.
  • the system 1 according to the embodiment of the present disclosure is not limited to this example.
  • System 1 may be a system compliant with other TS of 3GPP.
  • the system 1 may be an LTE (Long Term Evolution), LTE-A (LTE Advanced) or 4G TS compliant system.
  • the base station 100 may be an eNB (evolved Node B), and the network node 300 may be an MME (Mobility Management Entity).
  • the system 1 may be a next-generation (eg, 6G) TS-compliant system.
  • system 1 may be a system compliant with the TS of another standardization body for mobile communication.
  • the steps in the processing described herein do not necessarily have to be performed in chronological order in the order described in the flowchart or sequence diagram.
  • the steps in the process may be executed in an order different from the order described as a flowchart or a sequence diagram, or may be executed in parallel.
  • some of the steps in the process may be deleted, and additional steps may be added to the process.
  • a method including the operation of one or more components of the device described herein may be provided, or a program for causing a computer to perform the operation of the above components may be provided.
  • a non-transitional substantive recording medium that can be read by the computer on which the program is recorded may be provided.
  • such methods, programs, and computer-readable non-transitory tangible computer-readable storage medium are also included in the present disclosure.
  • a user device is a mobile station, a mobile terminal, a mobile device, a mobile unit, a subscriber station, a subscriber terminal, a subscriber device, a subscriber unit, and wireless. It may be called by another name such as a station, a wireless terminal, a wireless device, a wireless unit, a remote station, a remote terminal, a remote device, or a remote unit.
  • “transmit” may mean processing at least one layer in the protocol stack used for transmission, or the signal may be physically transmitted wirelessly or by wire. It may mean to send to.
  • “transmitting” may mean a combination of performing the processing of at least one layer and physically transmitting the signal wirelessly or by wire.
  • “receive” may mean processing at least one layer in the protocol stack used for reception, or physically receiving a signal wirelessly or by wire. It may mean that.
  • “receive” may mean a combination of performing the processing of at least one layer and physically receiving the signal wirelessly or by wire.
  • "obtain / acquire” may mean to acquire information from stored information, and to acquire information from information received from another node. It may mean that the information is acquired by generating the information.
  • (Feature 1) It is a user device (200) A reception processing unit (231) that receives a paging message transmitted by the base station (100), and A transmission processing unit (233) that transmits busy information indicating that the user device is busy and exceptional service information indicating a service that allows paging exceptionally in response to the paging message.
  • a reception processing unit (231) that receives a paging message transmitted by the base station (100)
  • a transmission processing unit (233) that transmits busy information indicating that the user device is busy and exceptional service information indicating a service that allows paging exceptionally in response to the paging message.
  • User equipment equipped with User equipment equipped with.
  • the transmission processing unit transmits a NAS (non-access stratum) message including the busy information and the exception service information to a network node (300) in the core network (30).
  • NAS non-access stratum
  • Feature 4 The user device according to feature 3, wherein the busy information is a Service Type included in the SERVICE REQUEST message, and is the Service Type indicating that the user device is busy.
  • (Feature 5) The user device according to feature 1, wherein the transmission processing unit transmits an RRC (radio resource control) message including the busy information and the exception service information to the base station in response to the paging message.
  • RRC radio resource control
  • each of the plurality of access categories is defined by a combination of conditions relating to the user device and the type of access attempt.
  • the user device can communicate in two or more mobile networks and The base station is included in the first mobile network of the two or more mobile networks.
  • the user device according to any one of the features 1 to 7.
  • the user device can be equipped with two or more SIM (Subscriber Identity Module) cards.
  • the two or more mobile networks correspond to the two or more SIM cards, respectively.
  • the transmission processing unit transmits the busy information and the exception service information in response to the paging message when the user device is communicating in the second mobile network of the two or more mobile networks.
  • the user device according to feature 8 or 9.
  • the transmission processing unit performs communication in the second mobile network rather than communication in the first mobile network in which the user device is communicating in the second mobile network and corresponds to the paging message.
  • the user device according to feature 10 which transmits the busy information and the exception service information in response to the paging message when the user device has priority.
  • the busy information indicates that the user device is busy.
  • the exception service information indicates a service that allows paging exceptionally.
  • the busy information and the exception service information are included in the RRC message transmitted by the user device to the base station.
  • the reception processing unit receives the busy information and the exception service information from the base station.
  • the network node according to feature 13.
  • the transmission processing unit transmits a message for paging to the user device to the base station for the service indicated by the exception service information, and for the service not indicated by the exception service information.
  • the network node according to feature 16 which does not send a message for paging to the user equipment.
  • the exception service information indicates a service that allows paging exceptionally.
  • the base station (Feature 21) Further equipped with another reception processing unit (147) that receives a message for paging to a user device from a network node in the core network.
  • the transmission processing unit transmits the paging message in response to the message.
  • the base station according to any one of the features 18 to 20.
  • This method is performed by the user device (200). Receiving the paging message sent by the base station (100) and In response to the paging message, the busy information indicating that the user device is busy and the exception service information indicating a service that exceptionally permits paging are transmitted. How to include.
  • (Feature 23) A method performed by a network node (300) within the core network (30). Sending a message for paging to the user device (200) to the base station (100) and Receiving the busy information and exception service information transmitted by the user device in response to the paging message transmitted by the base station in response to the message. Including The busy information indicates that the user device is busy. The exception service information indicates a service that allows paging exceptionally. Method.
  • (Feature 30) Sending a paging message and Receiving busy information and exception service information transmitted by the user device (200) in response to the paging message.
  • the busy information indicates that the user device is busy.
  • the exception service information indicates a service that allows paging exceptionally.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2021/045586 2021-01-13 2021-12-10 ユーザ機器、ネットワークノード及び基地局 Ceased WO2022153749A1 (ja)

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EP21919638.3A EP4280644A4 (en) 2021-01-13 2021-12-10 USER EQUIPMENT, NETWORK NODE AND BASE STATION
US18/349,644 US20230354265A1 (en) 2021-01-13 2023-07-10 User equipment, network node, and base station

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CN116830620A (zh) 2023-09-29
EP4280644A4 (en) 2024-06-05
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JP7755382B2 (ja) 2025-10-16
JP2022108569A (ja) 2022-07-26

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