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WO2025179499A1 - Procédés de communication, premier dispositif, fonctions de réseau, système de communication et support de stockage - Google Patents

Procédés de communication, premier dispositif, fonctions de réseau, système de communication et support de stockage

Info

Publication number
WO2025179499A1
WO2025179499A1 PCT/CN2024/079105 CN2024079105W WO2025179499A1 WO 2025179499 A1 WO2025179499 A1 WO 2025179499A1 CN 2024079105 W CN2024079105 W CN 2024079105W WO 2025179499 A1 WO2025179499 A1 WO 2025179499A1
Authority
WO
WIPO (PCT)
Prior art keywords
mwab
information
network function
smf
pdu session
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/079105
Other languages
English (en)
Chinese (zh)
Inventor
沈洋
王鑫丽
唐廷芳
李丽丝
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 PCT/CN2024/079105 priority Critical patent/WO2025179499A1/fr
Priority to CN202480014188.7A priority patent/CN120858650A/zh
Publication of WO2025179499A1 publication Critical patent/WO2025179499A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular to a communication method, a first device, a first network function, a fourth network function, a communication system, and a storage medium.
  • MWAB Mobile gNB with Wireless Access Backhaul
  • MWAB can act as a base station for terminals and provide access to the network.
  • MWAB consists of two parts: MWAB-gNB and MWAB-UE.
  • MWAB-UE After the introduction of MWAB, MWAB-UE needs to communicate with the core network.
  • a communication method is provided, where the method is performed by a first device and includes:
  • the first information is used by the first network function to determine that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul.
  • a communication method is provided, where the method is performed by a first network function, and the method includes:
  • the first information is used by the first network function to determine whether to create a MWAB-UE PDU session for N3 backhaul.
  • a communication method is provided, where the method is performed by a fourth network function, and the method includes:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • a communication method comprising:
  • the first device sends first information to the first network function
  • the first information is used by the first network function to determine that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul.
  • a first device including:
  • the transceiver module is configured as follows:
  • the first information is used by the first network function to determine that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul.
  • a first network function including:
  • the transceiver module is configured as follows:
  • the first information is used by the first network function to determine the need to create a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul for N3 backhaul.
  • a fourth network device including:
  • the processing module is configured to:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • a communication system includes a first device, a first network function, and a fourth network function; the first device is configured to implement the method described in the first aspect, the first network function is configured to implement the method described in the second aspect, and the fourth network function is configured to implement the method described in the third aspect.
  • a first device including:
  • processors one or more processors
  • the first device is used to execute the method described in the first aspect.
  • a first network function includes:
  • processors one or more processors
  • the first network function is used to execute the method described in the second aspect.
  • a fourth network function includes:
  • processors one or more processors
  • the fourth network function is used to execute the method described in the third aspect.
  • a storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the method provided by the first aspect, the second aspect and/or the third aspect.
  • the technical solution provided by the embodiments of the present disclosure enables communication between MWAB-UE and the core network.
  • FIG1a is a schematic diagram showing a communication system architecture according to an exemplary embodiment
  • FIG1b is a schematic diagram showing a communication system architecture according to an exemplary embodiment
  • FIG1c is a schematic diagram showing a QoS flow according to an exemplary embodiment
  • FIG2a is a schematic flow chart showing a communication method according to an exemplary embodiment
  • FIG3a is a flow chart showing a communication method according to an exemplary embodiment
  • FIG3 b is a flow chart showing a communication method according to an exemplary embodiment
  • FIG4a is a flow chart showing a communication method according to an exemplary embodiment
  • FIG4b is a flow chart showing a communication method according to an exemplary embodiment
  • FIG5a is a flow chart showing a communication method according to an exemplary embodiment
  • FIG5b is a flow chart showing a communication method according to an exemplary embodiment
  • FIG6a is a flow chart showing a communication method according to an exemplary embodiment
  • FIG7a is a flow chart showing a communication method according to an exemplary embodiment
  • FIG8a is a schematic structural diagram of a first device according to an exemplary embodiment
  • FIG8b is a schematic structural diagram of a first network function according to an exemplary embodiment
  • FIG8c is a schematic structural diagram showing a fourth network function according to an exemplary embodiment
  • FIG9a is a schematic structural diagram of a UE according to an exemplary embodiment
  • Fig. 9b is a schematic structural diagram of a communication device according to an exemplary embodiment.
  • Embodiments of the present disclosure provide a communication method, a first device, a first network function, a fourth network function, a communication system, and a storage medium.
  • an embodiment of the present disclosure provides a communication method, which is performed by a first device and includes:
  • the first information is used by the first network function to determine that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul.
  • the first network function can determine based on the first information that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul, so that N3 backhaul can be performed based on the MWAB-UE PDU session.
  • sending the first information to the first network function includes:
  • the N2 message includes the first information.
  • the first information may be sent to the first network function via an N2 message, thereby realizing multiplexing of the N2 message.
  • the N2 message includes the first information and PDU session creation request information.
  • a PDU session request may be implemented while sending the first information.
  • the access parameter includes at least one of the following:
  • the method further includes:
  • the second information is used to instruct the first device to trigger the creation of a MWAB-UE PDU session for N3 backhaul.
  • the creation of a MWAB-UE PDU session for N3 backhaul can be triggered based on the second information.
  • the method further includes:
  • the MWAB-UE in the first device is triggered to create the MWAB-UE PDU session.
  • the first device after receiving the second information, the first device triggers the MWAB-UE in the first device to create the MWAB-UE PDU session.
  • the method further includes:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the first network function may implement communication based on the third information.
  • the MWAB-UE SMF identity information is used to determine the service user plane function UPF ID of the MWAB-UE.
  • data transmission to or from the core network through the MWAB-UE Uu interface and the UE Uu interface can be achieved based on the first mapping relationship.
  • an embodiment of the present disclosure provides a communication method, the method being performed by a first network function, the method including:
  • the first information is used by the first network function to determine whether to create a MWAB-UE PDU session for N3 backhaul.
  • receiving the first information sent by the first device includes:
  • the N2 message includes the first information.
  • the N2 message includes the first information and PDU session creation request information.
  • the first information includes access parameters for the terminal to access the network, and the access parameters are used for the first network function to determine that the terminal accesses through the MWAB.
  • the access parameter includes at least one of the following:
  • the method further includes:
  • the method further includes:
  • the method further includes:
  • the second information is used to instruct the first device to create a MWAB-UE PDU session for N3 backhaul.
  • the method further includes:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • receiving the third information includes:
  • the method further includes:
  • the core network CN tunnel information and/or the identity information of the MWAB-UE SMF is obtained from the third network function.
  • the identity information of the MWAB-UE SMF is used to determine the service user plane function UPF ID of the MWAB-UE.
  • the method further includes:
  • the third information is sent to the fourth network function.
  • the method further includes:
  • a fourth network function is determined.
  • determining the fourth network function includes:
  • determining that the fourth network function is a MWAB-UE service SMF includes:
  • the fourth network function is the MWAB-UE service SMF indicated by the MWAB-UE SMF identifier contained in the fourth information.
  • the method further includes:
  • determining that the fourth network function is an SMF different from the MWAB-UE service SMF includes:
  • the fourth network function is determined to be an SMF different from the MWAB-UE service SMF based at least on the load balancing information.
  • an embodiment of the present disclosure provides a communication method, where the method is performed by a fourth network function, and the method includes:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the method further includes:
  • the fourth network function is a UE SMF; the second network function is a UE UPF; if the UE SMF and the MWAB-UE SMF are the same; determining the second network function based on the third information includes one of the following:
  • the third information includes the CN tunnel information, determining that the UE UPF is a MWAB-UE UPF based on the CN tunnel information;
  • the third information does not include the CN tunnel information, it is determined that the MWAB-UE UPF included in the SMF context is the MWAB-UE UPF.
  • the fourth network function is a UE SMF; the second network function is a UE UPF; if the UE SMF and the MWAB-UE SMF are different; determining the UE UPF based on the third information includes one of the following:
  • the third information includes the CN tunnel information, determining that the UE UPF is a MWAB-UE UPF based on the CN tunnel information;
  • the third information does not include the CN tunnel information, it is determined that the MWAB-UE UPF obtained by requesting the MWAB-UE SMF indicated by the identity information of the MWAB-UE SMF is the MWAB-UE UPF.
  • an embodiment of the present disclosure provides a communication method, the method comprising:
  • the first device sends first information to the first network function
  • the first information is used by the first network function to determine that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul.
  • an embodiment of the present disclosure provides a first device, the first device including:
  • the transceiver module is configured as follows:
  • the first information is used by the first network function to determine that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul.
  • an embodiment of the present disclosure provides a first network function, the first network function including:
  • the transceiver module is configured as follows:
  • the first information is used by the first network function to determine the need to create a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul for N3 backhaul.
  • an embodiment of the present disclosure provides a fourth network device, the fourth network device including:
  • the processing module is configured to:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • an embodiment of the present disclosure provides a communication system, comprising a first device, a first network function, and a fourth network function; the first device is configured to implement the method described in the first aspect, the first network function is configured to implement the method described in the second aspect, and the fourth network function is configured as the method described in the third aspect.
  • an embodiment of the present disclosure provides a first device, the first device including:
  • processors one or more processors
  • the first device is used to execute the method provided by the first aspect.
  • an embodiment of the present disclosure provides a first network function, the first network function including:
  • processors one or more processors
  • the first network function is used to execute the method provided by the second aspect.
  • an embodiment of the present disclosure provides a fourth network function, where the fourth network function includes:
  • processors one or more processors
  • the fourth network function is used to execute the method provided by the third aspect.
  • an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the method described in the optional implementation of the first aspect, the second aspect and/or the third aspect.
  • an embodiment of the present disclosure proposes a program product.
  • the communication device executes the method described in the optional implementation of the first aspect, the second aspect and/or the third aspect.
  • an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect, the second aspect and/or the third aspect.
  • an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first aspect, the second aspect, and/or the third aspect.
  • the first device, the first network function, the fourth network function, the communication system, the storage medium, the program product, the computer program, the chip, or the chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.
  • the present disclosure provides a communication method, a first device, a first network function, a fourth network function, a communication system, and a storage medium.
  • the terms “communication method” and “information indication method,” “information processing method,” and “information transmission method” are interchangeable, and the terms “communication system” and “information processing system” are interchangeable.
  • 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 steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • plurality refers to two or more.
  • the terms "at least one of”, “one or more”, “a plurality of”, “multiple”, etc. can be used interchangeably.
  • descriptions such as “at least one of A and B,” “A and/or B,” “A in one case, B in another case,” or “in response to one case A, in response to another case B” may include the following technical solutions depending on 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); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.
  • a or B and other descriptions may include the following technical solutions depending on 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). The above is also applicable when there are more branches such as A, B, C, etc.
  • prefixes such as “first” and “second” in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects.
  • the description object please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes.
  • the description object is a "field”
  • the ordinal number before the "field” in the "first field” and the "second field” does not limit the position or order between the "fields”.
  • “First” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of the "first field” and the "second field”.
  • 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 the ordinal number and can be one or more. Taking “first device” as an example, the number of "devices" can be one or more.
  • the objects modified by different prefixes can be the same or different.
  • the description object is "device”
  • the "first device” and the “second device” can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information”, then the "first information” and the “second information” can be the same information or different information, and their contents can 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 “in response to", “in response to determining", “in the case of", “at the time of", “when!, “if", “if", etc. can be used interchangeably.
  • 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 less 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”, “not more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can 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.
  • the "access network device (AN device)” may also be referred to as a “radio access network device (RAN device)", “base station (BS)", “radio base station (radio base station)”, “fixed station (fixed station)”, and in some embodiments may also be understood as a “node (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 (BWP)", etc.
  • RAN device radio access network device
  • BS base station
  • RP reception point
  • TRP transmission and/or reception point
  • a “terminal” or “terminal device” may be referred to as a "user device”. equipment, UE), “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.
  • obtaining 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 embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.
  • FIG1a 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 include at least one of an access network device 1021 and a core network device 1022 .
  • the access network device 1021 may be a MWAB.
  • the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with 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, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with 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,
  • 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 or within the 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 (CU) and a distributed unit (DU), where the CU may also be called a control unit.
  • the CU-DU structure may be used to split the protocol layers of the access network device, with some functions of the protocol layers centrally controlled by the CU, and the remaining functions of some or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.
  • a core network device may be a single 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.
  • a network element may be virtual or physical.
  • the core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a 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.
  • Ordinary technicians in this field 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 FIG1a, or a portion thereof, but are not limited thereto.
  • the entities shown in FIG1a are illustrative only.
  • the communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a.
  • the number and form of the entities may be arbitrary.
  • the connection relationship between the entities is illustrative only.
  • the entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • communication system (4G) fifth generation mobile communication system
  • 5G 5G new radio
  • NR future radio access
  • RAT new radio access technology
  • NR new radio access
  • NX new radio access
  • FX future generation radio access
  • GSM Global System for Mobile communications
  • CDMA2000 Ultra Mobile Broadband
  • UMB Ultra Mobile Broadband
  • 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
  • D2D device-to-device
  • M2M machine to machine
  • M2M Machine-to-Machine
  • IoT Internet of Things
  • a Mobile gNB with Wireless Access Backhaul is a mobile base station capable of acting as a gNB for other UEs and providing access to the 5G network.
  • IP Internet Protocol
  • PDU Packet Data Unit
  • PDU Protocol Data Unit
  • the PDU session is provided by a terrestrial or non-terrestrial network.
  • This mobile gNB may be installed in a moving vehicle and serve UEs that may be located inside or outside the vehicle (or entering or leaving the vehicle).
  • the MWAB-gNB is the base station portion of the MWAB.
  • the MWAB-UE is the terminal portion of the NWAB.
  • Figure 1b shows an example of the architecture of a non-roaming scenario of a 5G system.
  • MWAB provides wireless connection to 5GC through IP connection provided by PDU session, and both N2 interface and N3 interface are carried on the PDU session between MWAB-UE and 5GC.
  • At least one PDU session is established between the MWAB-UE and the 5GC:
  • N2 and N3 use a single PDU session; otherwise, the PDU session of N2 and the PDU session of N3 are separate.
  • UE PDU sessions are backhauled over N3 via MWAB-UE PDU sessions, so they need to share common features, such as single network slice selection assistance information (S-NSSAI), DNN, PDU session type, and session and service continuity (SSC) mode.
  • S-NSSAI single network slice selection assistance information
  • DNN DNN
  • PDU session type PDU session type
  • SSC session and service continuity
  • QoS UE Quality of Service
  • MWAB-UE QoS flows must be mapped to each other for transmission to and from the 5GC over the MWAB-UE Uu interface and UE Uu interface.
  • the UE PDU session establishment process is first performed. After receiving a PDU session resource establishment request from the UE AMF, the MWAB-gNB decides to establish a MWAB-UE PDU session for wireless N3 backhaul.
  • the same User Plane Function (UPF) used for the UE PDU session is used for the MWAB-UE PDU session.
  • UPF User Plane Function
  • the UE UPF is selected before the N3 wireless backhaul is available, resulting in the UE UPF being unreachable.
  • the UE UPF and the MWAB-UE UPF are the same, but it lacks details on how to ensure that the same UPF is selected for the UE and the MWAB-UE. If the UE PDU session shares the same UPF as the MWAB-UE session, UPF reselection and traffic forwarding between the MWAB-UE UPF and the UE UPF can be avoided.
  • a MWAB-UE PDU session should be established before the UE PDU session establishment procedure.
  • the UE sends a PDU session establishment request (N2 backhaul PDU session) to the UE AMF, and the N2 message includes a MWAB indication.
  • the MWAB indication is used to help the AMF or SMF determine that a MWAB-UE PDU session is required for the N3 wireless backhaul and, if no existing MWAB-UE PDU session is available, trigger the MWA B-UE PDU session establishment procedure.
  • MWAB-UE PDU sessions and UE-PDU sessions can share the same UPF.
  • FIG2a is an interactive 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 for a communication system 100, the method comprising:
  • Step S2101 The first device sends first information to the first network function.
  • the first network function receives first information sent by the first device.
  • the first device may be a MWAB, which includes two parts: a MWAB-gNB and a MWAB-UE.
  • the first network function is an access and mobility management function (AMF, Access and Mobility Management Function), for example, UE AMF.
  • AMF Access and Mobility Management Function
  • the network function (e.g., the first network function) in this disclosure may also be referred to as a network device, network entity, network element, or device in certain scenarios, without limitation herein.
  • a network function may be a logical function, and different logical functions may be deployed in the same device or in different devices, without limitation herein.
  • the first information is used by the first network function to determine that a MWAB-UE PDU session needs to be established for N3 (interface) backhaul.
  • the MWAB-UE PDU session may be a PDU session between the MWAB-UE and a core network device.
  • the first device sends an N2 message (N2message) to the first network function, where the N2 message includes the first information.
  • N2 messagessage N2message
  • the N2 message only includes the first information but does not include PDU session creation request information.
  • the N2 message includes the first information and PDU session creation request information.
  • whether the PDU session creation request information is also required to be included can be determined based on the timing of requesting to create the PDU session. For example, if it is necessary to immediately request to create a PDU session, the first information and the PDU session creation request information can be included together in the N2 message. If it is not necessary to immediately request to create a PDU session, the N2 message can include only the first information without the PDU session creation request information, and the PDU session creation request information can be sent separately based on the timing of requesting to create the PDU session or sent through other messages. This is not limited here.
  • the first information is used to indicate that a MWAB-UE PDU session needs to be created for N3 backhaul.
  • the first information is used to indicate that the terminal accesses the network through MWAB.
  • the first information includes access parameters for the terminal to access a network.
  • the access parameter is used by the first network function to determine that the terminal accesses via MWAB.
  • the access parameter includes at least one of the following:
  • MWAB-gNB cell identity (ID, Identity document).
  • the ID of the MWAB-gNB cell is different from the ID of the ordinary gNB (or conventional or traditional non-mobile gNB) cell, so that the core network equipment can determine (or judge) whether the gNB is a MWAB-gNB or an ordinary gNB based on the ID of the gNB cell.
  • Step S2102 The first network function determines the need to create the MWAB-UE PDU session based on the first information.
  • the first core network receives first information sent by the first device.
  • the first network function determines that the MWAB-UE PDU session needs to be established based on the first information.
  • the first network function determines that the MWAB-UE PDU session needs to be created.
  • the first network function determines that there is no need to create the MWAB-UE PDU session.
  • the first network function determines that the MWAB-UE PDU session needs to be created.
  • the first network function determines that the MWAB-UE PDU session needs to be created.
  • the first network function determines that the MWAB-UE PDU session needs to be created.
  • the first network function determines that the MWAB-UE PDU session needs to be created.
  • Step S2103 The first network function determines whether there is an available MWAB-UE PDU session.
  • the first network function determines that the MWAB-UE PDU session needs to be created, and the first network function determines whether there is an available MWAB-UE PDU session.
  • the first network function determines that there is an available MWAB-UE PDU session, which may be that there is an already established MWAB-UE PDU session.
  • the first network function determines that there is no available MWAB-UE PDU session, which may be that there is no established MWAB-UE PDU session.
  • Step S2104 The first network function sends second information to the first device.
  • the first device receives second information sent by the first network function.
  • the first network function if there is no available MWAB-UE PDU session, the first network function sends the second information to the first device.
  • the second information is used to instruct the first device to trigger creation of a MWAB-UE PDU session for N3 backhaul.
  • Step S2105 The first device triggers the creation of the MWAB-UE PDU session.
  • the first device if the second information is received, the first device triggers the MWAB-UE in the first device to create the MWAB-UE PDU session.
  • the MWAB-UE in the first device can obtain relevant information of the MWAB-UE PDU session.
  • the MWAB-UE in the first device can send relevant information of the MWAB-UE PDU session to the MWAB-gNB in the first device.
  • the MWAB-UE in the first device sends relevant information about the MWAB-UE PDU session to the MWAB-gNB in the first device.
  • the relevant information of the MWAB-UE PDU session includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • Step S2106 The first device sends third information to the first network function.
  • the first network function receives third information sent by the first device.
  • the first device sends third information related to the MWAB-UE PDU session to the first network function.
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the MWAB-UE SMF identity information is used to determine the service user plane function (UPF, User Plane Function) ID of the MWAB-UE.
  • UPF User Plane Function
  • the first network function receives the third information sent by the first device.
  • the first network function obtains the core network CN tunnel information from the third network function.
  • the first network function obtains the identity information of the MWAB-UE SMF from the third network function.
  • the third network function can be unified data management (UDM).
  • UDM unified data management
  • Step S2107 The first network function determines the fourth network function.
  • the fourth network function may be a session management function (SMF), for example, a UE SMF.
  • SMS session management function
  • the first network function determines that the fourth network function is a MWAB-UE service SMF.
  • the first network function determines that the fourth network function is the MWAB-UE service SMF indicated by the MWAB-UE SMF identifier contained in the fourth information.
  • the first network function determines that the fourth network function is an SMF different from the MWAB-UE service SMF.
  • the first network function determines, based at least on load balancing information, that the fourth network function is an SMF different from the MWAB-UE serving SMF.
  • Step S2108 The first network function sends third information to the fourth network function.
  • the fourth network function receives the third information sent by the first network function.
  • the first network function determines a fourth network function, and the first network function sends the third information to the fourth network function.
  • Step S2109 The fourth network function determines the second network function.
  • the fourth network function determines the second network function based on the third information.
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the fourth network function receives third information sent by the first network function and determines the second network function based on the third information.
  • the fourth network function is UE SMF; the second network function is UE UPF; if the UE SMF and the MWAB-UE SMF are the same and if the third information includes the CN tunnel information, the fourth network function determines that the UE UPF is the MWAB-UE UPF based on the CN tunnel information.
  • the fourth network function is UE SMF; the second network function is UE UPF; if the UE SMF and the MWAB-UE SMF are the same and if the third information does not include the CN tunnel information, the fourth network function determines that the MWAB-UE UPF included in the SMF context is the MWAB-UE UPF.
  • the fourth network function is UE SMF; the second network function is UE UPF; if the UE SMF and the MWAB-UE SMF are different and if the third information includes the CN tunnel information, the UE UPF is determined to be the MWAB-UE UPF based on the CN tunnel information.
  • the fourth network function is UE SMF; the second network function is UE UPF; if the UE SMF and the MWAB-UE SMF are different and if the third information does not include the CN tunnel information, it is determined that the MWAB-UE UPF obtained by requesting the MWAB-UE SMF indicated by the identity information of the MWAB-UE SMF is the MWAB-UE UPF.
  • the term "information” can be interchangeable with terms such as “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “field”, and "data”.
  • the term “send” can be interchanged 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 S2109.
  • 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 S2105 may be implemented as an independent embodiment
  • step S2106 may be implemented as an independent embodiment
  • step S2107 may be implemented as an independent embodiment
  • step S2108 may be implemented as an independent embodiment
  • step S2109 may be implemented as an independent embodiment.
  • step S2101 combined with step S2102, step S2104, and step S2105 can be implemented as an independent embodiment
  • step S2101 combined with step S2102, step S2103, step S2104, and step S2105 can be implemented as an independent embodiment
  • step S2101 combined with step S2102, step S2103, step S2104, step S2105, and step S2106 can be implemented as an independent embodiment.
  • Step S2101 combined with step S2102, step S2103, step S2104, step S2105, step S2106, step S2107 and S2108 can be implemented as independent embodiments
  • step S2101 combined with step S2102, step S2103, step S2104, step S2105, step S2106, step S2107, S2108 and S2109 can be implemented as independent embodiments, but are not limited to this.
  • Figure 3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, the embodiment of the present disclosure relates to a communication method, which is executed by a first device and includes:
  • Step S3101 Send first information to the first network function.
  • step S3101 may refer to step S2101 in FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.
  • Step S3102 Receive second information sent by the first network function.
  • step S3102 may refer to step S2104 in FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.
  • Step S3103 Trigger the creation of the MWAB-UE PDU session.
  • step S3103 may refer to step S2105 of FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.
  • Step S3104 Send third information to the first network function.
  • step S3104 may refer to step S2106 in FIG. 2 a and other related parts of the embodiment involved in FIG. 2 a , which will not be described in detail here.
  • the information indication method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3104.
  • Step S3101 can be implemented as an independent embodiment
  • step S3102 can be implemented as an independent embodiment
  • step S3103 can be implemented as an independent embodiment
  • step S3104 can be implemented as an independent embodiment.
  • step S3101 can be implemented as an independent embodiment in combination with step S3102 and step S3103
  • step S3101 can be implemented as an independent embodiment in combination with step S3102, step S3103, and step S3104, but the present invention 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 embodiment of the present disclosure relates to a communication method, which is executed by a first device and includes:
  • Step S3201 Send first information to the first network function.
  • the first information is used for the first network function to determine that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul.
  • step S3201 can be found in other related parts of the embodiment involved in the steps of FIG. 2 a , and will not be described in detail here.
  • sending the first information to the first network function includes:
  • the N2 message includes the first information.
  • the N2 message includes the first information and PDU session creation request information.
  • the first information includes access parameters for the terminal to access the network, and the access parameters are used by the first network function to determine that the terminal accesses through MWAB.
  • the access parameter includes at least one of the following:
  • the method further comprises:
  • the second information is used to instruct the first device to trigger the creation of a MWAB-UE PDU session for N3 backhaul.
  • the method further comprises:
  • the MWAB-UE in the first device is triggered to create the MWAB-UE PDU session.
  • the method further comprises:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the MWAB-UE SMF identity information is used to determine the service user plane function UPF ID of the MWAB-UE.
  • Figure 4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 4a, the embodiment of the present disclosure relates to a communication method, which is executed by a first network function, and the method includes:
  • Step S4101 Receive first information sent by a first device.
  • step S4101 may refer to other related parts of the embodiment involved in step S2101 in FIG. 2 a , which will not be described in detail here.
  • Step S4102 Based on the first information, determine that the MWAB-UE PDU session needs to be created.
  • step S4102 can be found in other related parts of the embodiment involved in step S2102 in Figure 2a, and will not be repeated here.
  • Step S4103 Determine whether there is an available MWAB-UE PDU session.
  • step S4103 may refer to other related parts of the embodiment involved in step S2103 in FIG. 2 a , which will not be described in detail here.
  • Step S4104 Send second information to the first device.
  • step S4104 may refer to other related parts of the embodiment involved in step S2104 in FIG. 2 a , which will not be described in detail here.
  • Step S4105 Receive third information sent by the first device.
  • step S4105 may refer to other related parts of the embodiment involved in step S2106 in FIG. 2 a , which will not be described in detail here.
  • Step S4106 Determine the fourth network function.
  • step S4106 may refer to other related parts of the embodiment involved in step S2107 in FIG. 2 a , which will not be described in detail here.
  • Step S4107 Determine the fourth network function.
  • step S4107 may refer to other related parts of the embodiment involved in step S2108 in FIG. 2 a , which will not be described in detail here.
  • the information indication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4107.
  • step S4101 may be implemented as an independent embodiment
  • step S4102 may be implemented as an independent embodiment
  • step S4103 may be implemented as an independent embodiment
  • step S4104 may be implemented as an independent embodiment
  • step S4105 may be implemented as an independent embodiment
  • step S4106 may be implemented as an independent embodiment
  • step S4107 may be implemented as an independent embodiment.
  • step S4101 combined with step S4102 and step S4104 can be implemented as an independent embodiment
  • step S4101 combined with step S4102, step S4103, and step S4104 can be implemented as an independent embodiment
  • step S4101 combined with step S4102, step S4103, step S4104, and step S4105 can be implemented as an independent embodiment
  • step S4101 combined with step S4102, step S4103, step S4104, step S4105, step S4106, and step S4107 can be implemented as an independent embodiment
  • step S4101 combined with step S4102, step S4103, step S4104, step S4105, step S4106, and step S4107 can be implemented as an independent embodiment, but is not limited to this.
  • Figure 4b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 4b, the embodiment of the present disclosure relates to a communication method, which is performed by a first network function, and the method includes:
  • Step S4201 Receive first information sent by a first device.
  • the first information is used for the first network function to determine the need to create a MWAB-UE PDU session for N3 backhaul.
  • step S4201 may refer to other related parts of the embodiment involved in step 2101 in FIG. 2 a , which will not be described in detail here.
  • the receiving the first information sent by the first device includes:
  • the N2 message includes the first information.
  • the N2 message includes the first information and PDU session creation request information.
  • the first information includes access parameters for the terminal to access the network, and the access parameters are used by the first network function to determine that the terminal accesses the network through the MWAB.
  • the access parameter includes at least one of the following:
  • the method further comprises:
  • the method further comprises:
  • the method further comprises:
  • the second information is used to instruct the first device to trigger the creation of a MWAB-UE PDU session for N3 backhaul.
  • the method further comprises:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the receiving the third information includes:
  • the method further comprises:
  • the core network CN tunnel information and/or the identity information of the MWAB-UE SMF is obtained from the third network function.
  • the identity information of the MWAB-UE SMF is used to determine the service user plane function UPF ID of the MWAB-UE.
  • the method further comprises:
  • the third information is sent to the fourth network function.
  • the method further comprises:
  • a fourth network function is determined.
  • determining the fourth network function includes:
  • determining that the fourth network function is a MWAB-UE service SMF includes:
  • the fourth network function is the MWAB-UE service SMF indicated by the MWAB-UE SMF identifier contained in the fourth information.
  • the method further comprises:
  • determining that the fourth network function is an SMF different from the MWAB-UE serving SMF includes:
  • the fourth network function is determined to be an SMF different from the MWAB-UE service SMF based at least on the load balancing information.
  • Figure 5a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the embodiment of the present disclosure relates to a communication method, which is performed by a fourth network function, and the method includes:
  • Step S5101 Receive third information sent by the first network function.
  • step S5101 may refer to other related parts of the embodiment involved in step 2108 in FIG. 2 a , which will not be described in detail here.
  • Step S5102 Determine the second network function.
  • step S5102 may refer to other related parts of the embodiment involved in step 2109 in FIG. 2 a , which will not be described in detail here.
  • the information indication method involved in the embodiment of the present disclosure may include at least one of step S5101 to step S5102.
  • step S5101 can be implemented as an independent embodiment
  • step S5102 can be implemented as an independent embodiment.
  • Figure 5b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 5b, the embodiment of the present disclosure relates to a communication method, which is performed by a fourth network function, and the method includes:
  • Step S5201 Determine the second network function based on the third information.
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • step S5201 may refer to other related parts of the embodiment involved in step 2108 in FIG. 2 a , which will not be described in detail here.
  • Figure 6a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 6a, the present disclosure embodiment relates to a communication method, which is used in a communication system 100. The method includes one of the following steps:
  • Step S6101 The first device sends first information to the first network function.
  • the first network function receives first information sent by the first device.
  • step S6101 can refer to the optional implementation of steps S2101 to S2109 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.
  • the above method may include the methods of the above-mentioned communication system side, first device, first network function, fourth network function and other embodiments, which will not be repeated here.
  • the MWAB-UE PDU session backhauled by N2 has been established.
  • one or more MWAB-UE PDU sessions for N3 backhaul have been established or have not yet been established.
  • the MWAB-UE PDU session of N2 backhaul can also be used as the MWAB-UE PDU session of N3 backhaul as long as it meets the requirements of N3 backhaul.
  • a communication method comprising:
  • Step S7101 Send an N2 message, including a PDU Session Establishment Request and an MWAB Indication (corresponding to the first message).
  • the UE sends a PDU Session Establishment Request (N2 backhaul PDU session) to the UE AMF.
  • the N2 message includes the MWAB Indication.
  • the MWAB Indication helps the AMF or SMF determine that an MWAB-UE PDU session is required for N3 wireless backhaul.
  • step S7102 the AMF or SMF determines the N3PDU session required for wireless backhaul based on the information received in step S7101, and checks whether there is an available MWAB-UE PDU session.
  • Step S7103 If an available MWAB-UE PDU session exists, the AMF or SMF sends the MWAB-UE PDU session related information to the MWAB-gNB. Steps S7104 and S7105 are skipped. If no MWAB-UE PDU session exists, the AMF or SMF instructs the MWAB-gNB to create a new MWAB-UE PDU session for N3 wireless backhaul (corresponding to the second message).
  • Step S7104 The MWAB-UE requests to establish a PDU session.
  • Step S7105 The MWAB-gNB sends the MWAB-UE PDU session related information (corresponding to the third message) to the UE AMF. If there is an available MWAB-UE PDU session as described in step S7103, the MWAB-UE PDU session related information will be retrieved by the AMF/SMF itself.
  • the MWAB-UE PDU session related information may include one or more of the following information:
  • CN tunnel information (including UPF identity);
  • Step S7106 If neither the CN tunnel information nor the MWAB-UE SMF identity is included in the MWAB-UE PDU session information, the UE AMF retrieves the MWAB-UE serving SMF identity from the UDM.
  • the MWAB-UE SMF identity can be used to retrieve the MWAB-UE serving UPF identity.
  • Step S7107-Step S7109 UE AMF performs SMF selection.
  • the UE AMF may select the MWAB-UE serving SMF as the UE SMF protocol for the MWAB-UE SMF identity received in step 5/6. (The same applies to both the UE SMF and the MWAB-UE SMF).
  • the UE SMF will use the MWAB-UE UPF as the UE uplink to CN tunnel information.
  • the UE SMF shall retrieve the MWAB-UE UPF from the SMF context.
  • the UE AMF selects a different UE SMF from the MWAB - UE SMF taking other considerations like load balancing into account. (UE SMF and MWAB-UE SMF are different cases).
  • the UE SMF will use the MWAB-UE UPF as the UE uplink to CN tunnel information.
  • the UE SMF shall request the MWAB-UE UPF from the MWAB-UE SMF based on the MWAB-UE SMF identity.
  • the MWAB configures mapping rules with the 5GC.
  • UE QoS flows and MWAB-UE QoS flows must be mapped to each other for transmission to and from the 5GC over the MWAB-UE Uu interface and the UE Uu interface.
  • the embodiments of the present disclosure further provide an apparatus for implementing any of the above methods.
  • an apparatus comprising units or modules for implementing each step performed by a terminal in any of the above methods.
  • another apparatus comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.
  • a network device e.g., an access network device, a core network function node, a core network device, etc.
  • the division of the various units or modules in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated.
  • 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 various 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 within 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 above-mentioned hardware circuits may be understood as one or more processors.
  • the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above-mentioned units or modules may be implemented by designing the logical relationship between the components in the circuit.
  • ASIC application-specific integrated circuit
  • the above-mentioned hardware circuit may be implemented by a programmable logic device (PLD).
  • PLD programmable logic device
  • FPGA field programmable gate array
  • it may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured through a configuration file, thereby implementing the functions of some or all of the above-mentioned units or modules. All units or modules of the above-mentioned devices may be implemented entirely by the processor calling software, or entirely by hardware circuits, or partially by the processor calling software, and the remaining part by hardware circuits.
  • the processor is a circuit with signal processing capabilities.
  • the processor can 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).
  • the processor can implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable.
  • the processor 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 ASIC, such as the Neural Network Processing Unit (NPU), the Tensor Processing Unit (TPU), the Deep Learning Processing Unit (DPU), etc.
  • Figure 8a is a schematic diagram of the structure of the first device 8100 proposed in an embodiment of the present disclosure.
  • the first device 8100 may include: at least one of a transceiver module 8101, a processing module 8102, 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 first device 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 first device in any of the above methods, which will not be repeated here.
  • a first device 8100 is provided.
  • the first device 8100 includes a transceiver module 8101 and a processing module 8102.
  • the transceiver module 8101 is configured to:
  • the first information is used by the first network function to determine that a mobile base station terminal MWAB-UE protocol data unit PDU session with wireless backhaul needs to be created for N3 backhaul.
  • the transceiver module 8101 is configured to: send an N2 message to the first network function;
  • the N2 message includes the first information.
  • the transceiver module 8101 is configured as follows: the N2 message includes the first information and PDU session creation request information.
  • the transceiver module 8101 is configured as follows: the first information includes access parameters for the terminal to access the network, and the access parameters are used by the first network function to determine that the terminal accesses through MWAB.
  • the transceiver module 8101 is configured such that: the access parameter includes at least one of the following:
  • the transceiver module 8101 is configured to: receive second information sent by the first network function;
  • the second information is used to instruct the first device to trigger the creation of a MWAB-UE PDU session for N3 backhaul.
  • the processing module 8102 is configured to: if the second information is received, trigger the MWAB-UE in the first device to create the MWAB-UE PDU session.
  • the transceiver module 8101 is configured to: send third information related to the MWAB-UE PDU session to the first network function;
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the transceiver module 8101 is configured as follows: the MWAB-UE SMF identity information is used to determine the service user plane function UPF ID of the MWAB-UE.
  • the transceiver module 8101 is configured as follows: the first device is a MWAB, and there is a first mapping relationship between the quality of service QoS flow of the terminal accessing the MWAB and the MWAB-UE QoS flow.
  • Figure 8b is a schematic diagram of the structure of the first network function 8200 proposed in an embodiment of the present disclosure.
  • the first network function 8200 may include: at least one of a transceiver module 8201, a processing module 8202, 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 first network function in any of the above methods, which will not be repeated here.
  • the transceiver module may include a sending module and/or a receiving module, and the sending module and the receiving module may be separate or integrated.
  • the transceiver module may be interchangeable with the transceiver.
  • a first network function is provided, wherein the core network device includes a transceiver module 8201 and a processing module 8202, wherein the transceiver module 8201 is configured to:
  • the first information is used by the first network function to determine whether to create a MWAB-UE PDU session for N3 backhaul.
  • the transceiver module 8201 is configured to: receive an N2 message sent by the first device;
  • the N2 message includes the first information.
  • the transceiver module 8201 is configured as follows: the N2 message includes the first information and PDU session creation request information.
  • the transceiver module 8201 is configured as follows: the first information includes access parameters for the terminal to access the network, and the access parameters are used by the first network function to determine that the terminal accesses the network through the MWAB.
  • the transceiver module 8201 is configured such that: the access parameter includes at least one of the following:
  • the processing module 8202 is configured to: based on the first information, determine the need to create the MWAB-UE PDU session.
  • the processing module 8202 is configured to determine whether there is an available MWAB-UE PDU session.
  • the transceiver module 8201 is configured to: if there is no available MWAB-UE PDU session, send the second information to the first device;
  • the second information is used to instruct the first device to trigger the creation of a MWAB-UE PDU session for N3 backhaul.
  • the transceiver module 8201 is configured to: receive third information;
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the transceiver module 8201 is configured to: if there is no available MWAB-UE PDU session, receive the third information sent by the first device.
  • the processing module 8202 is configured to: if the third information does not include the identity information of the CN tunnel information and/or MWAB-UE SMF, obtain the identity information of the core network CN tunnel information and/or MWAB-UE SMF from the third network function.
  • the processing module 8202 is configured as follows: the identity information of the MWAB-UE SMF is used to determine the service user plane function UPF ID of the MWAB-UE.
  • the transceiver module 8201 is configured to: send the third information to the fourth network function.
  • the processing module 8202 is configured to: determine a fourth network function.
  • the processing module 8202 is configured to: determine that the fourth network function is a MWAB-UE service SMF.
  • the processing module 8202 is configured to: determine that the fourth network function is the MWAB-UE service SMF indicated by the MWAB-UE SMF identifier contained in the fourth information.
  • the processing module 8202 is configured to: determine that the fourth network function is an SMF different from the MWAB-UE service SMF.
  • the processing module 8202 is configured to: determine, based at least on load balancing information, that the fourth network function is an SMF different from the MWAB-UE service SMF.
  • Figure 8c is a schematic diagram of the structure of the fourth network function 8300 proposed in an embodiment of the present disclosure.
  • the fourth network function 8300 may include: at least one of: a transceiver module 8301, a processing module 8302, 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 fourth network function in any of the above methods, which will not be repeated here.
  • the transceiver module may include a sending module and/or a receiving module, and the sending module and the receiving module may be separate or integrated.
  • the transceiver module may be interchangeable with the transceiver.
  • the processing module can be a single module or can include multiple submodules.
  • the multiple submodules respectively execute all or part of the steps required to be executed by the processing module.
  • the processing module can be interchangeable with the processor.
  • a fourth network function including a transceiver module 8301 and a processing module 8302, wherein the processing module 8302 is configured to:
  • the third information includes at least one of the following:
  • Core network CN tunnel information where the CN tunnel information includes identity information of the second network function
  • the transceiver module 8301 is configured as follows:
  • the processing module 8302 is configured to: if the fourth network function is a UE SMF; if the second network function is a UE UPF; if the UE SMF and the MWAB-UE SMF are the same; and if the second network function is determined based on the third information, including one of the following:
  • the third information includes the CN tunnel information, determining that the UE UPF is a MWAB-UE UPF based on the CN tunnel information;
  • the third information does not include the CN tunnel information, it is determined that the MWAB-UE UPF included in the SMF context is the MWAB-UE UPF.
  • the processing module 8302 is configured to: the fourth network function is the UE SMF; the second network function is the UE UPF; if the UE SMF and the MWAB-UE SMF are different; determining the UE UPF based on the third information includes one of the following:
  • the third information includes the CN tunnel information, determining that the UE UPF is a MWAB-UE UPF based on the CN tunnel information;
  • the third information does not include the CN tunnel information, it is determined that the MWAB-UE UPF obtained by requesting the MWAB-UE SMF indicated by the identity information of the MWAB-UE SMF is the MWAB-UE UPF.
  • FIG. 9a is a schematic diagram of the structure of a communication device 9100 proposed in an embodiment of the present disclosure.
  • Communication device 9100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), 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.
  • Communication device 9100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.
  • the communication device 9100 includes one or more processors 9101.
  • the processor 9101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data.
  • the communication device 9100 is used to perform any of the above methods.
  • the communication device 9100 further includes one or more memories 9102 for storing instructions.
  • the memories 9102 may be located outside the communication device 9100.
  • the communication device 9100 further includes one or more transceivers 9103.
  • the transceiver 9103 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step S2101 and step S3101, but not limited thereto), and the processor 9101 performs at least one of the other steps.
  • a transceiver may include a receiver and/or a transmitter.
  • the receiver and transmitter may be separate or integrated.
  • transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.
  • the communication device 9100 may include one or more interface circuits 9104.
  • the interface circuit 9104 is connected to the memory 9102.
  • the interface circuit 9104 may be configured to receive signals from the memory 9102 or other devices, and may be configured to send signals to the memory 9102 or other devices.
  • the interface circuit 9104 may read instructions stored in the memory 9102 and send the instructions to the processor 9101.
  • the communication device 9100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 9100 described in the present disclosure is not limited thereto, and the structure of the communication device 9100 may not be limited by FIG. 9a.
  • 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 or 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, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • FIG9b is a schematic diagram of the structure of a chip 9200 according to an embodiment of the present disclosure. If the communication device 9100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 9200 shown in FIG9b , but the present disclosure is not limited thereto.
  • the chip 9200 includes one or more processors 9201 , and the chip 9200 is configured to execute any of the above methods.
  • the chip 9200 further includes one or more interface circuits 9202.
  • the interface circuit 9202 is connected to the memory 9203.
  • the interface circuit 9202 can be used to receive signals from the memory 9203 or other devices, and can be used to send signals to the memory 9203 or other devices.
  • the interface circuit 9202 can read instructions stored in the memory 9203 and send the instructions to the processor 9201.
  • the interface circuit 9202 executes 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 9201 executes at least one of the other steps.
  • interface circuit interface circuit
  • transceiver pin transceiver
  • the chip 9200 further includes one or more memories 9203 for storing instructions. Alternatively, all or part of the memories 9203 may be located outside the chip 9200.
  • the present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 9100, causes the communication device 9100 to execute 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 thereto and may also be a storage medium readable by other devices.
  • the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.
  • the present disclosure also provides a program product, which, when executed by the communication device 9100, enables the communication device 9100 to perform 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 perform any one of the above methods.

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

Abstract

Les modes de réalisation de la présente divulgation concernent des procédés de communication, un premier dispositif, une première fonction de réseau, une quatrième fonction de réseau, un système de communication et un support de stockage. Un procédé consiste à : envoyer des premières informations à une première fonction de réseau, les premières informations étant utilisées par la première fonction de réseau pour déterminer qu'un équipement utilisateur de gNB mobile comprenant une session d'unité de données de protocole (PDU) de liaison backhaul d'accès sans fil (MWAB-UE) doit être créé pour une liaison backhaul N3. De cette manière, la solution technique fournie dans les modes de réalisation de la présente divulgation met en œuvre une communication entre un MWAB-UE et un réseau central.
PCT/CN2024/079105 2024-02-28 2024-02-28 Procédés de communication, premier dispositif, fonctions de réseau, système de communication et support de stockage Pending WO2025179499A1 (fr)

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PCT/CN2024/079105 WO2025179499A1 (fr) 2024-02-28 2024-02-28 Procédés de communication, premier dispositif, fonctions de réseau, système de communication et support de stockage
CN202480014188.7A CN120858650A (zh) 2024-02-28 2024-02-28 通信方法、第一设备、网络功能、通信系统和存储介质

Applications Claiming Priority (1)

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PCT/CN2024/079105 WO2025179499A1 (fr) 2024-02-28 2024-02-28 Procédés de communication, premier dispositif, fonctions de réseau, système de communication et support de stockage

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110110379A1 (en) * 2009-11-06 2011-05-12 Samsung Electronics Co., Ltd. Method and apparatus for settig up uplink common bearer in wireless communication network
WO2021038443A1 (fr) * 2019-08-29 2021-03-04 Telefonaktiebolaget Lm Ericsson (Publ) Indication de relation pour dispositifs à sim multiples
WO2021168862A1 (fr) * 2020-02-29 2021-09-02 华为技术有限公司 Procédé et dispositif de communication
CN116867002A (zh) * 2022-03-27 2023-10-10 华为技术有限公司 通信方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110110379A1 (en) * 2009-11-06 2011-05-12 Samsung Electronics Co., Ltd. Method and apparatus for settig up uplink common bearer in wireless communication network
WO2021038443A1 (fr) * 2019-08-29 2021-03-04 Telefonaktiebolaget Lm Ericsson (Publ) Indication de relation pour dispositifs à sim multiples
WO2021168862A1 (fr) * 2020-02-29 2021-09-02 华为技术有限公司 Procédé et dispositif de communication
CN116867002A (zh) * 2022-03-27 2023-10-10 华为技术有限公司 通信方法和装置

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