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WO2025081510A1 - Procédés de communication, terminaux, dispositif réseau, système de communication et support de stockage - Google Patents

Procédés de communication, terminaux, dispositif réseau, système de communication et support de stockage Download PDF

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Publication number
WO2025081510A1
WO2025081510A1 PCT/CN2023/125805 CN2023125805W WO2025081510A1 WO 2025081510 A1 WO2025081510 A1 WO 2025081510A1 CN 2023125805 W CN2023125805 W CN 2023125805W WO 2025081510 A1 WO2025081510 A1 WO 2025081510A1
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WO
WIPO (PCT)
Prior art keywords
information
network device
terminal
time
service
Prior art date
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Application number
PCT/CN2023/125805
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English (en)
Chinese (zh)
Inventor
毛玉欣
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.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202380011802.XA priority Critical patent/CN117693950A/zh
Priority to PCT/CN2023/125805 priority patent/WO2025081510A1/fr
Publication of WO2025081510A1 publication Critical patent/WO2025081510A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a communication method, a core network device, a terminal, a communication system and a storage medium.
  • a communication architecture with a satellite RAN On-board function has been introduced.
  • the satellite In a network with a satellite RAN On-board function, the satellite needs to support data storage and forwarding functions to support the normal delay-tolerant services when the satellite network connection is discontinuous.
  • some services may require low latency, or some signaling interactions may have low latency requirements.
  • the terminal and the network need to be distinguished.
  • the embodiments of the present disclosure provide a communication method, a first core network device, a terminal, a communication system and a storage medium.
  • a communication method is provided, the method being performed by a first core network device, the method comprising:
  • the first time information includes: the remaining time before the interruption of the feeder link and/or the time of the interruption of the feeder link, and the feeder link is a transmission link between the access network device accessed by the terminal and the ground station.
  • a communication method is provided, the method being executed by a terminal, the method comprising:
  • the first information indicates whether the service can be completed within the time determined by the first time information; the third information indicates the time determined based on the first time information; the first time information includes: the remaining time before the feeder link is interrupted and/or the time of the feeder link interruption, and the feeder link is the transmission link between the access network device accessed by the terminal and the ground station.
  • a communication method comprising:
  • the first core network device sends the first information or the third information to the terminal;
  • the first information indicates whether the service can be completed within the time determined by the first time information; the third information indicates the time determined based on the first time information; the first time information includes: the remaining time before the feeder link is interrupted and/or the time of the feeder link interruption, and the feeder link is the transmission link between the access network device accessed by the terminal and the ground station.
  • a core network device comprising:
  • the processing module is configured as follows:
  • the first time information includes: the remaining time before the interruption of the feeder link and/or the time of the interruption of the feeder link, and the feeder link is a transmission link between the access network device accessed by the terminal and the ground station.
  • a terminal including:
  • the transceiver module is configured as follows:
  • the first information indicates whether the service can be completed within the time determined by the first time information; the third information indicates the time determined based on the first time information; the first time information includes: the remaining time before the feeder link is interrupted and/or the time of the feeder link interruption, and the feeder link is the transmission link between the access network device accessed by the terminal and the ground station.
  • a communication system includes a first core network device and a terminal; the first core network device is configured to implement the method described in the first aspect, and the terminal is configured to implement the method described in the second aspect.
  • a core network device including:
  • processors one or more processors
  • the core network device is used to execute the method described in the first aspect.
  • a terminal including:
  • processors one or more processors
  • the terminal is used to execute the method described in the first aspect.
  • a storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the method provided in the first aspect and/or the second aspect.
  • FIG. 1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment
  • FIG1b is a schematic diagram of a communication system according to an exemplary embodiment
  • FIG2a is a schematic flow chart of a communication method according to an exemplary embodiment
  • FIG2b is a schematic flow chart of a communication method according to an exemplary embodiment
  • Fig. 3a is a schematic flow chart of a communication method according to an exemplary embodiment
  • Fig. 3b is a schematic flow chart of a communication method according to an exemplary embodiment
  • Fig. 3c is a schematic flow chart of a communication method according to an exemplary embodiment
  • FIG4a is a schematic flow chart of a communication method according to an exemplary embodiment
  • Fig. 4b is a schematic flow chart of a communication method according to an exemplary embodiment
  • Fig. 4c is a schematic flow chart of a communication method according to an exemplary embodiment
  • Fig. 5a is a schematic diagram of a communication system according to an exemplary embodiment
  • Fig. 6a is a schematic flow chart showing a communication method according to an exemplary embodiment
  • Fig. 6b is a schematic flow chart of a communication method according to an exemplary embodiment
  • FIG7a is a schematic structural diagram of a first core network device according to an exemplary embodiment
  • Fig. 7b is a schematic diagram showing the structure of a terminal according to an exemplary embodiment
  • FIG8a is a schematic structural diagram of a UE according to an exemplary embodiment
  • Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment.
  • the embodiments of the present disclosure provide a communication method, a core network device, a terminal, a communication system, and a storage medium.
  • the communication method and the information indication method, the information processing method, the information transmission method and other terms can be replaced with each other, and the communication system, the information processing system and other terms can be replaced with each other.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged.
  • the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • elements expressed in the singular form such as “a”, “an”, “the”, “above”, “said”, “aforementioned”, “this”, etc., may mean “one and only one", or “one or more”, “at least one”, etc.
  • the noun after the article may be understood as a singular expression or a plural expression.
  • plurality refers to two or more.
  • the terms "at least one of”, “one or more”, “a plurality of”, “multiple”, etc. can be used interchangeably.
  • "at least one of A and B", “A and/or B", “A in one case, B in another case”, “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.
  • the recording method of "A or B” may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed).
  • A A is executed independently of B
  • B B is executed independently of A
  • execution is selected from A and B (A and B are selectively executed).
  • the description object is a "level”
  • the ordinal number before the "level” in the “first level” and the “second level” does not limit the priority between the "levels”.
  • the number of description objects is not limited by ordinal numbers and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
  • the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
  • “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, “subject”, etc.
  • network can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.
  • access network device may also be referred to as “radio access network device (RAN device)", “base station (BS)”, “radio base station (radio base station)”, “fixed station” and in some embodiments may also be understood as “node”, “access point (access point)”, “transmission point (TP)”, “reception point (RP)”, “transmission and/or reception point (transmission/reception point, TRP)", “panel”, “antenna panel”, “antenna array”, “cell”, “macro cell”, “small cell”, “femto cell”, “pico cell”, “sector”, “cell group”, “serving cell”, “carrier”, “component carrier”, “bandwidth part (bandwidth part, BWP)", etc.
  • RAN device radio access network device
  • base station base station
  • RP radio base station
  • TRP transmission and/or reception point
  • terminal or “terminal device” may be referred to as "user equipment (UE)", “user terminal (user terminal)”, “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.
  • FIG. 1 a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.
  • a communication system 100 includes a terminal 101 and a network device 102 .
  • the network device 102 may be a first core network device.
  • the network device 102 may include at least one of an access network device and a core network device.
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with a communication function, a smart car, a tablet computer, a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, and a wireless terminal device in industrial control.
  • VR virtual reality
  • AR augmented reality
  • a wireless terminal device in industrial control a wireless terminal device in self-driving
  • a wireless terminal device in remote medical surgery and a wireless terminal device in industrial control.
  • the access network device may be, for example, a node or device that accesses a terminal to a wireless network.
  • the access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.
  • eNB evolved Node B
  • ng-eNB next generation evolved Node B
  • gNB next generation Node B
  • NB no
  • the technical solution of the present disclosure may be applicable to the Open RAN architecture.
  • the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.
  • the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit).
  • the CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.
  • the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements.
  • the network element may be virtual or physical.
  • the core network may include, for example, at least one of the Evolved Packet Core (EPC), the 5G Core Network (5GCN), and the Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG. 1a, or part of the subject, but are not limited thereto.
  • the subjects shown in FIG. 1a are examples, and the communication system may include all or part of the subjects in FIG. 1a, or may include other subjects other than FIG. 1a, and the number and form of the subjects are arbitrary, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, which may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G the fourth generation mobile communication system
  • 5G 5G new radio
  • FAA Future Radio Access
  • RAT New Radio
  • NR New Radio
  • NX New radio access
  • the present invention relates to wireless communication systems such as LTE, Wi-Fi (X), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) network, Device to Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle to Everything (V2X), systems using other communication methods, and next-generation systems expanded based on them.
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • M2M Machine to Machine
  • IoT Internet of Things
  • V2X Vehicle to Everything
  • systems using other communication methods and next-generation systems expanded based on them.
  • next-generation systems expanded based on them.
  • a combination of multiple systems for example, a combination of
  • the satellite in satellite access, can operate in regeneration mode, and Figure 1b shows a reference architecture. If the satellite operates in regeneration mode, the satellite will operate with the base station (gNB), and the satellite payload performs all or part of the functions of the gNB.
  • the satellite radio interface transmits data of the N1, N2 or N3 interface between the ground fifth-generation mobile communication network core network (5GCN, 5G Core Network) and the satellite-borne gNB.
  • 5GCN ground fifth-generation mobile communication network core network
  • 5G Core Network 5G Core Network
  • satellite connections may be intermittent, for example, non-geostationary orbit (NGSO) satellites are not always connected to the ground network via a feeder link (between the satellite and the ground station) due to the limited number of ground stations. Therefore, a store and forward satellite service is proposed to support delay-tolerant communication services in satellite networks.
  • the store and forward satellite operation enables the satellite to store data packets when the feeder link connection is interrupted and forward data packets when there is a connection with the ground network.
  • the store-and-forward operation is only applicable to delay-tolerant services.
  • the feeder link becomes unavailable due to a change in the tracking area (TA), which results in the signaling related to the registration update being stored on the satellite, and if the feeder link is restored, the signaling is forwarded to the core network, but when the core network receives the signaling, the TA where the UE is located changes again, and the registration update is invalid.
  • TA tracking area
  • FIG2a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2a, the present disclosure embodiment relates to a communication method, which is used in a communication system 100, and the method includes:
  • Step S2101 The first core network device determines the first time information.
  • the first core network device can be a mobility management entity (MME, Mobility Management Entity), a serving gateway (S-GW, Serving Gateway) and/or a packet data gateway (P-GW, Packet Data Network Gateway).
  • MME mobility management entity
  • S-GW Serving Gateway
  • P-GW Packet Data Network Gateway
  • the first core network device may be an access and mobility management function (AMF) or a user plane function (UPF).
  • AMF access and mobility management function
  • UPF user plane function
  • the first core network device determines the first time information based on ephemeris information.
  • the ephemeris information includes connection time information and/or interruption time information of the feeder link.
  • the first time information includes a remaining time before feeder link interruption.
  • the first time information includes the time of the feeder link interruption before the feeder link interruption.
  • the first time information includes the remaining time before the feeder link is interrupted and the time of the feeder link interruption.
  • the feeder link is a transmission link between an access network device accessed by the terminal and a ground station.
  • the ground station may be a processing device on the ground for receiving and transmitting signals from users of access network equipment.
  • the access network device is an access network device accessed by a terminal.
  • the access network device is an access network device serving the terminal currently accessing.
  • the access network device may be a satellite-based wireless base station (Satellite with RAN On-board) function, which may also be referred to as an integrated base station function.
  • satellite-based wireless base station Setellite with RAN On-board
  • Step S2102 The first core network device determines whether the terminal can complete the service.
  • the first core network device determines whether the terminal can complete the service within the time determined by the first time information.
  • the service is a service whose latency requirement is less than a time threshold.
  • the first core network device determines whether the terminal is able to complete the service within the time determined based on the first time information.
  • the time determined based on the first time information may be the remaining time before the feeder link is terminated.
  • the first core network device determines that the terminal is unable to complete the service within the time determined based on the first time.
  • the service includes signaling interaction between the terminal and the network, including at least one of the following: Internet Protocol Connection Access Network IP-CAN session operation process, tracking area update process and service request process.
  • the service includes data interaction between the terminal and the network, including at least one of the following: application service initiated by the terminal and application service initiated by the network.
  • the service includes signaling interaction between the terminal and the network and data interaction between the terminal and the network.
  • the service includes at least one of the following:
  • Step S2103 The first core network device sends the first information to the terminal through the access network device.
  • the terminal receives the first information sent by the first core network device through the access network device.
  • the first core network device sends the first information to the terminal via the access network device.
  • the first information indicates whether the service can be completed within the time determined by the first time information.
  • a first core network device receives second information sent by the terminal through the access network device; determines that the service corresponding to the second information cannot be completed within the time determined by the first time information; and sends first information to the terminal, wherein the first information indicates that the service cannot be completed within the first time.
  • the first core network device receives the second information sent by the second core network device; determines that the second information is The corresponding service cannot be completed within the time specified by the first time information; and first information is sent to the terminal, where the first information indicates that the service cannot be completed within the first time.
  • the second information includes: signaling or data containing the service.
  • the first core network device receives the second information sent by the terminal through the access network device and determines that the service corresponding to the second information cannot be executed within the time determined based on the first time information, and sends the first information to the terminal.
  • the first information indicates that the service cannot be completed within the time determined based on the first time information.
  • the second information includes at least one of the following: signaling or data of the service sent by the terminal; signaling or data of the service received from the second core network device.
  • Step S2104 The terminal determines whether to execute the service.
  • the terminal determines whether to perform the service during the feeder link interruption.
  • the terminal receives fourth information sent by the first core network device through the access network device, and the fourth information indicates that the access network device supports or does not support data storage and forwarding.
  • the terminal receives fifth information sent by the access network device, and the fifth information indicates that the access network device supports or does not support data storage and forwarding.
  • the first core network device can determine the remaining time before the feeder link is interrupted and/or the first time of the feeder link interruption, after determining the first time, data transmission can be performed based on the first time. Compared with the situation where the first time is uncertain, data transmission can adapt to the interruption of the feeder link, thereby improving data transmission efficiency and data transmission reliability.
  • the term "information” can be interchangeably with terms such as “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “field”, and "data”.
  • the term “send” can be interchangeable with terms such as “transmit”, “report”, and “transmit”.
  • the information indication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2104.
  • step S2101 may be implemented as an independent embodiment
  • step S2102 may be implemented as an independent embodiment
  • step S2103 may be implemented as an independent embodiment
  • step S2104 may be implemented as an independent embodiment.
  • step S2102 combined with step S2103 and step S2104 may be implemented as an independent embodiment
  • step S2103 combined with step S2104 may be implemented as an independent embodiment, but is not limited thereto.
  • FIG2b is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2b, the present disclosure embodiment relates to a communication method, which is used in a communication system 100, and the method includes:
  • Step S2201 The first core network device determines the first time information.
  • the first core network device determines the first time information based on ephemeris information.
  • the ephemeris information includes connection time information and/or interruption time information of the feeder link.
  • the first time information includes a remaining time before feeder link interruption.
  • the first time information includes the time of the feeder link interruption before the feeder link interruption.
  • the first time information includes the remaining time before the feeder link is interrupted and the time of the feeder link interruption.
  • the feeder link is a transmission link between an access network device accessed by the terminal and a ground station.
  • the ground station may be a processing device on the ground for user receiving and sending signals set up for satellite access network equipment.
  • the access network device is an access network device accessed by a terminal.
  • the access network device is an access network device serving the terminal currently accessing.
  • Step S2202 The first core network device sends third information to the terminal through the access network device.
  • the terminal receives third information sent by the first core network device through the access network device.
  • the terminal receives the third information sent by the first core network device through the access network device.
  • the third information indicates a time determined based on the first time information.
  • the first core network device receives the second information sent by the terminal through the access network device, and the first core network device sends the third information to the terminal through the access network device.
  • the first core network device receives the second information sent by the second core network device, and the first core network device receives the second information sent by the second core network device.
  • the access network device sends the third information to the terminal.
  • the second information includes: signaling or data containing the service.
  • the service is a service whose latency requirement is less than a time threshold.
  • the second information includes at least one of the following: signaling or data of the service sent by the terminal; signaling or data of the service received from the second core network device.
  • Step S2203 The terminal determines whether to execute the service.
  • the service includes signaling interaction between the terminal and the network, including at least one of the following: an Internet Protocol Connection Access Network IP-CAN session operation process, a tracking area update process and a service request process.
  • the service includes data interaction between the terminal and the network, including at least one of the following: an application service initiated by the terminal and an application service initiated by the network.
  • the service includes signaling interaction between the terminal and the network and data interaction between the terminal and the network.
  • the service includes at least one of the following:
  • Network initiated application service based on the third information and the fourth information or the fifth information, it is determined whether to execute the service during the feeder link interruption.
  • the terminal receives fourth information sent by the first core network device, and the fourth information indicates that the access network device supports or does not support data storage and forwarding.
  • the terminal receives fifth information sent by the access network device, and the fifth information indicates that the access network device supports or does not support data storage and forwarding.
  • the term "information” can be interchangeably with terms such as “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “field”, and "data”.
  • the term “send” can be interchangeable with terms such as “transmit”, “report”, and “transmit”.
  • the information indication method involved in the embodiment of the present disclosure may include at least one of step S2101 to step S2103.
  • step S2101 may be implemented as an independent embodiment
  • step S2102 may be implemented as an independent embodiment
  • step S2103 may be implemented as an independent embodiment
  • step S2102 combined with step S2103 may be implemented as an independent embodiment, but is not limited thereto.
  • FIG3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to a communication method, which is executed by a first core network device, and the method includes:
  • Step S3101 Determine the first time information.
  • step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
  • Step S3102 Determine whether the terminal can complete the service.
  • step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
  • Step S3103 Send first information to the terminal through the access network device.
  • step S3103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
  • the information indication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3103.
  • step S3101 may be implemented as an independent embodiment
  • step S3102 may be implemented as an independent embodiment
  • step S3103 may be implemented as an independent embodiment
  • step S3101 combined with step S3102 and step S3103 may be implemented as an independent embodiment
  • step S3102 combined with step S3103 may be implemented as an independent embodiment, but is not limited thereto.
  • FIG3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3b, the present disclosure embodiment relates to a communication method, which is executed by a first core network device, and the method includes:
  • Step S3201 Determine the first time information.
  • step S3201 can refer to the optional implementation of step S2201 in FIG. 2b, and Other related parts in the embodiment involved in FIG. 2b will not be described in detail here.
  • Step S3202 Send third information to the terminal through the access network device.
  • step S3202 can refer to the optional implementation of step S2202 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
  • step S3101 may be implemented as an independent embodiment
  • step S3102 may be implemented as an independent embodiment, but is not limited thereto.
  • FIG3c is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3c, the present disclosure embodiment relates to a communication method, which is executed by a first core network device, and the method includes:
  • Step S3201 Determine the first time information.
  • the first time information includes: the remaining time before the feeder link is interrupted and/or the time of the feeder link interruption, and the feeder link is a transmission link between the access network device accessed by the terminal and the ground station.
  • the method further comprises:
  • the first information is used to indicate whether the service can be completed within the time determined based on the first time information.
  • the method further comprises:
  • the first information indicates that the service cannot be completed within the time determined based on the first time information
  • the second information includes: signaling or data containing the service.
  • the service includes at least one of the following:
  • the method further comprises:
  • the method further comprises:
  • the terminal receiving second information sent by the terminal through the access network device or second information sent by a second core network device, where the second information includes: signaling or data containing the service;
  • the sending the third information to the terminal includes:
  • the method further comprises:
  • the ephemeris information includes connection time information and/or interruption time information of the feeder link.
  • the method further comprises:
  • the fourth information is used to indicate whether the access network device supports data storage and forwarding.
  • FIG4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4a, the present disclosure embodiment relates to a communication method, which is executed by a terminal, and the method includes:
  • Step S4101 Obtain first information.
  • first information sent by a first core network device through an access network device is received.
  • first information sent by a first core network device through an access network device is received, but not limited to this, and first information sent by other entities may also be received.
  • first information specified by a protocol is obtained.
  • the first information is obtained from an upper layer(s).
  • processing is performed to obtain the first information.
  • step S4101 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
  • Step S4102 Determine whether to execute the service.
  • step S4102 can refer to the optional implementation of step S2104 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.
  • step S4101 may be implemented as an independent embodiment
  • step S4102 may be implemented as an independent embodiment, but is not limited thereto.
  • FIG4b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4b, the present disclosure embodiment relates to a communication method, which is executed by a terminal, and the method includes:
  • Step S4201 Obtain third information.
  • third information sent by the first core network device through the access network device is received.
  • third information sent by the first core network device through the access network device is received, but not limited to this, and third information sent by other entities can also be received.
  • third information specified by the protocol is obtained.
  • the third information is obtained from an upper layer(s).
  • processing is performed to obtain third information.
  • step S4201 can refer to the optional implementation of step S2202 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.
  • Step S4202 Determine whether to execute the business.
  • step S4102 can refer to the optional implementation of step S2203 in Figure 2b and other related parts of the embodiment involved in Figure 2b, which will not be repeated here.
  • step S4201 may be implemented as an independent embodiment
  • step S4202 may be implemented as an independent embodiment, but is not limited thereto.
  • FIG4c is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4c, the present disclosure embodiment relates to a communication method, which is executed by a terminal, and the method includes:
  • Step S4301 Receive the first information or the third information.
  • the first information indicates whether the service can be completed within the time determined by the first time information; the third information indicates the time determined based on the first time information; the first time information includes: the remaining time before the feeder link is interrupted and/or the time of the feeder link interruption, and the feeder link is a transmission link between the access network device accessed by the terminal and the ground station.
  • step S4302 can refer to the optional implementation of step S2103 in Figure 2a and step S2202 in Figure 2b, as well as other related parts in the embodiments involved in Figures 2a and 2b, which will not be repeated here.
  • the method further comprises:
  • the second information includes: signaling or data included in the service.
  • the service includes one of the following:
  • the method further comprises one of the following:
  • the fifth information sent by the access network device is received, where the fifth information indicates whether the access network device supports or does not support data storage and forwarding.
  • the method further comprises one of the following:
  • FIG5a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG5a, the present disclosure embodiment relates to a communication method, which is used in a communication system 100, and the method includes one of the following steps:
  • Step S5001 The first core network device sends the first information or the third information to the terminal through the access network device.
  • the first information indicates whether the service can be completed within the time determined by the first time information; the third information indicates the time determined based on the first time information; the first time information includes the remaining time before the feeder link is interrupted and/or the time of the feeder link interruption, and the feeder link is a transmission link between the access network device accessed by the terminal and the ground station.
  • step S5001 can refer to the optional implementation of steps S2201 to S2104 and S2201 to S2203 in Figures 2a and 2b and other related parts in the embodiments involved in Figures 2a and 2b, which will not be repeated here.
  • the above method may include the methods of the above-mentioned first core network device side and terminal side embodiments, which will not be repeated here.
  • the embodiments of the present disclosure can solve the problem of how to avoid invalid signaling interactions or minimize the failure of starting delay-sensitive services due to discontinuous connection of feeder links.
  • the MME returns a notification to the UE to indicate that the remaining time is insufficient to complete the interaction due to the satellite feeder link becoming unavailable, or the remaining duration before the feeder link becomes unavailable, when:
  • a signaling message from the UE e.g., a Registration Request for a Mobility Registration Update
  • a signaling message e.g., a Registration Request for a Mobility Registration Update
  • the serving gateway receives mobile originated (MO) or mobile terminated (MT) service data traffic.
  • the Mobility Management Entity determines to send the notification or the remaining duration based on the ephemeris information associated with the satellite providing coverage to the UE.
  • the ephemeris information includes the feeder link connection information of the satellite, for example, the time when the feeder link becomes unavailable and the duration of the unavailability.
  • the MME before or when sending the notification or the remaining duration, the MME also notifies the UE of the Radio Access Network (RAN) that supports store and forward (S&F) operations.
  • RAN Radio Access Network
  • S&F store and forward
  • the UE may determine whether to initiate only delay tolerant traffic during the feeder link unavailability period.
  • the embodiment of the present disclosure relates to a communication method, the method comprising:
  • Step S6101 Attach request.
  • the UE accesses the EPC through SAT-eNB1 (corresponding to the access network device), and the UE sends an attach request to SAT-eNB1.
  • the attach request is sent to the MME by using the S1-AP message serving RAN node (SAT-eNB1). If SAT-eNB1 supports the store and forward capability, the S1-AP message should include the capability and send it to the MME (corresponding to the first core network device).
  • Step S6102 Create a session request or response. If the MME accepts the UE attachment, a session is created with the S-GW.
  • Step S6103 The MME sends an Attach Accept message to SAT-eNB1.
  • the MME provides the UE with SAT-eNB1 that supports S&F capabilities.
  • Step S6104 SAT-ENB1 configures an RRC connection with the UE.
  • the UE knows that the serving RAN node (SAT-eNB1) supports S&F for delay tolerant services.
  • Step S6105 The UE initiates an IP-CAN session modification process and establishes an IP-CAN bearer.
  • Step S6106 Determine whether the remaining duration is sufficient to complete the IP-CAN session modification before the feeder link becomes unavailable.
  • the MME receives the IP-CAN session modification request, it determines whether the remaining duration is sufficient to complete the IP-CAN session modification before the feeder link becomes unavailable. The determination may be based on ephemeris information associated with the SAT-eNB1 serving the UE.
  • the ephemeris information may include feeder link connection information of the satellite, such as the time when the feeder link becomes unavailable and the duration of unavailability.
  • Step S6107 IP-CAN session modification rejection: If the remaining duration is insufficient to complete the IP-CAN session modification, the MME replies to the UE with an IP-CAN session modification rejection, indicating that the rejection is due to insufficient time to complete the process due to the feeder link discontinuous connection.
  • Step S6108 The UE can only initiate delay tolerant services during the feeder link outage. After receiving the indication, the UE knows that the feeder link will become unavailable, and based on the support of S&f operation by SAT-eNB1, the UE can only initiate delay tolerant services during the feeder link outage.
  • Step S6109 SAT-eNB1 receives UL data service from UE.
  • Step S6110 Store the UL data service in the satellite.
  • Step S6111 When SAT-eNB1 detects that the feeder link is recovering and it is still serving UE access, it forwards the stored UL data traffic to S-GW.
  • part or all of the steps and their optional implementations may be arbitrarily combined with part or all of the steps in other embodiments, or may be arbitrarily combined with optional implementations of other embodiments.
  • the present disclosure embodiment relates to a communication method, and the method includes:
  • Step S6201 Attach procedure.
  • the UE accesses the EPC through SAT-eNB1, and the UE sends an attach request to SAT-eNB1.
  • the attach request is sent to the MME by using the S1-AP message serving RAN node (SAT-eNB1). If SAT-eNB1 supports the store and forward capability, the S1-AP message should include the capability and send it to the MME.
  • the MME sends the SAT-eNB1 supporting the S&F capability to the UE.
  • Step S6202 The UE establishes an IP-CAN session with the network.
  • Step S6203 The UE initiates a service through the IP-CAN session and sends a UL data service.
  • Step S6204 When the S-GW receives the first UL data service, it reports the event to the MME.
  • Step S6205 Based on the event report, the MME determines the remaining duration before the feeder link becomes unavailable. The determination may be based on ephemeris information associated with the SAT-eNB1 serving the UE.
  • the ephemeris information may include feeder link connection information of the satellite, such as the time when the feeder link becomes unavailable and the unavailability duration.
  • Step S6206 The MME notifies the UE of the remaining duration.
  • Step S6207 The UE determines whether to continue the service according to the remaining duration. If it is continuous, the service may be interrupted during the feeder link interruption. SAT-eNB1 stores the UL service data service and forwards it to S-GW when the feeder link is available. This may increase the time delay of the service. Otherwise, the UE may terminate the service.
  • the embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods.
  • a device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.
  • a network device such as an access network device, a core network function node, a core network device, etc.
  • the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory.
  • the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
  • the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
  • the processor is a circuit with signal processing capabilities.
  • the processor may be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a processor that is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules.
  • it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit. (Neural Network Processing Unit, NPU), Tensor Processing Unit (TPU), Deep learning Processing Unit (DPU), etc.
  • Figure 7a is a schematic diagram of the structure of the first core network device proposed in the embodiment of the present disclosure.
  • the first core network device 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc.
  • the above-mentioned transceiver module is used to send and receive information.
  • the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and/or receiving performed by the first core network device in any of the above methods, which will not be repeated here.
  • the above-mentioned processing module is used to execute at least one of the other steps performed by the first core network device in any of the above methods, which will not be repeated here.
  • FIG7b is a schematic diagram of the structure of the terminal proposed in the embodiment of the present disclosure.
  • the terminal 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc.
  • the transceiver module is used to send and receive information.
  • the transceiver module is used to perform at least one of the communication steps such as sending and/or receiving performed by the terminal in any of the above methods, which will not be repeated here.
  • the processing module is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be repeated here.
  • FIG8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure.
  • the communication device 8100 may be a network device (e.g., an access network device, a core network device, etc.), or a terminal (e.g., a user device, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods.
  • the communication device 8100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the communication device 8100 includes one or more processors 8101.
  • the processor 8101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program.
  • the communication device 8100 is used to execute any of the above methods.
  • the communication device 8100 further includes one or more memories 8102 for storing instructions.
  • the memory 8102 may also be outside the communication device 8100.
  • the communication device 8100 further includes one or more transceivers 8103.
  • the transceiver 8103 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step S2101, step S3101, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S2102, step S3102, but not limited thereto).
  • the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the communication device 8100 may include one or more interface circuits 8104.
  • the interface circuit 8104 is connected to the memory 8102, and the interface circuit 8104 may be used to receive signals from the memory 8102 or other devices, and may be used to send signals to the memory 8102 or other devices.
  • the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.
  • the communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8a.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • Fig. 8b is a schematic diagram of the structure of a chip 8200 provided in an embodiment of the present disclosure.
  • the communication device 8100 may be a chip or a chip system
  • the chip 8200 includes one or more processors 8201, and the chip 8200 is used to execute any of the above methods.
  • the chip 8200 further includes one or more interface circuits 8202.
  • the interface circuit 8202 is connected to the memory 8203.
  • the interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to the memory 8203 or other devices.
  • the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.
  • the interface circuit 8202 performs the communication steps of sending and/or receiving in the above method (for example, step S2101, step S3101, but not limited to this), the processor 8201 executes at least one of the other steps (for example, step S2102, step S3102, but not limited to this).
  • interface circuit interface circuit
  • transceiver pin transceiver
  • the chip 8200 further includes one or more memories 8203 for storing instructions.
  • the memory 8203 may be outside the chip 8200.
  • the present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices.
  • the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.
  • the present disclosure also proposes a program product, which, when executed by the communication device 8100, enables the communication device 8100 to execute any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

Les modes de réalisation de la présente divulgation concernent des procédés de communication, un premier dispositif de réseau central, des terminaux, un système de communication et un support de stockage. Un procédé consiste à : déterminer des premières informations temporelles, les premières informations temporelles comprenant : le temps restant avant la déconnexion d'une liaison d'alimentation et/ou le moment où la liaison d'alimentation est déconnectée, et la liaison d'alimentation étant une liaison de transmission entre un dispositif de réseau d'accès auquel accède un terminal et une station terrestre. De cette manière, le temps restant avant la déconnexion de la liaison d'alimentation et/ou le moment où la liaison d'alimentation est déconnectée est défini.
PCT/CN2023/125805 2023-10-20 2023-10-20 Procédés de communication, terminaux, dispositif réseau, système de communication et support de stockage Pending WO2025081510A1 (fr)

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PCT/CN2023/125805 WO2025081510A1 (fr) 2023-10-20 2023-10-20 Procédés de communication, terminaux, dispositif réseau, système de communication et support de stockage

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WO2025200005A1 (fr) * 2024-03-29 2025-10-02 北京小米移动软件有限公司 Procédés de communication, terminaux, dispositifs réseau, système de communication et support de stockage
WO2025213428A1 (fr) * 2024-04-11 2025-10-16 北京小米移动软件有限公司 Procédés et appareils de traitement de la mobilité, dispositif de communication, système de communication et support de stockage
CN118509035B (zh) * 2024-07-18 2025-03-21 荣耀终端股份有限公司 一种基于存储转发的卫星通信方法及设备

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