Method, apparatus and communication device for establishing a shared session

Abstract

The disclosure provides a shared session establishment method, device and communication equipment, and belongs to the technical field of wireless communication. The method comprises the following steps: a session management function (SMF) receives a protocol data unit (PDU) session establishment request from a user equipment (UE) through an access network device, wherein the PDU session establishment request comprises a multi-modal service identifier; a corresponding PDU session is determined according to the PDU session establishment request, and the PDU session is bound to a shared N4 session corresponding to the multi-modal service identifier, so that multiple PDU sessions corresponding to the multi-modal service identifier share the shared N4 session. Therefore, when multiple UEs cooperatively complete multi-modal services, multiple PDU sessions can share the same shared N4 session, that is, multiple UEs can use the same shared N4 session, and network resource consumption can be reduced.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a method, apparatus and communication device for establishing a shared session. Background Technology

[0002] Current mobile networks primarily develop mobility management, session management, and other features for individual UEs (User Equipment). Furthermore, mobile networks manage UEs and allocate UE resources on a per-UE basis.

[0003] However, with the rapid development of mobile networks, the era of the Internet of Everything is coming. Limited by the capabilities of a single device, a single UE may not be able to complete complex requirements and tasks. At this time, multiple UEs may need to work closely together to complete complex requirements and tasks.

[0004] However, the current standardized protocol only establishes a session for a single UE. Therefore, how to enable multiple UEs to share a session is a problem that needs to be solved. Summary of the Invention

[0005] The first aspect of this disclosure provides a shared session establishment method applied to a Session Management Function (SMF), comprising: receiving a Protocol Data Unit (PDU) session establishment request from a User Equipment (UE) via an access network device, wherein the PDU session establishment request includes a multimodal service identifier; determining a corresponding PDU session based on the PDU session establishment request; and binding the PDU session with a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session.

[0006] Optionally, binding the PDU session with the shared N4 session corresponding to the multimodal service identifier includes: sending the updated N4 context parameters corresponding to the shared N4 session to the User Plane Function (UPF); and sending the updated Quality of Service (QoS) parameters to the UE and the access network device.

[0007] Optionally, sending the updated QoS parameters to the UE and the access network device includes: sending updated QoS rules information to the UE; and sending updated QoS profile information to the access network device.

[0008] Optionally, determining the corresponding PDU session based on the PDU session establishment request includes: determining whether a PDU session has already been established for the multimodal service identifier.

[0009] Optionally, it further includes: if so, establishing a PDU session corresponding to the UE or joining a PDU session established for the multimodal service identifier.

[0010] Optionally, it further includes: if not, establishing the PDU session and establishing the N4 session corresponding to the PDU session.

[0011] Optionally, the multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

[0012] Optionally, the multimodal service identifier is used to identify the same multimodal service or to identify multiple UEs sharing a PDU session.

[0013] The second aspect of this disclosure provides another shared session establishment method applied to a UE, comprising: sending a PDU session establishment request to an SMF via an access network device, wherein the PDU session establishment request includes a multimodal service identifier, wherein the SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session.

[0014] Optionally, the method further includes: receiving updated Quality of Service (QoS) rules information fed back by the SMF through the access network device.

[0015] Optionally, the multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

[0016] Optionally, the multimodal service identifier is used to identify the same multimodal service or to identify multiple UEs sharing a PDU session.

[0017] This disclosure provides a third aspect of an embodiment, which proposes another method for establishing a shared session, applied to an access network device, comprising: receiving a Protocol Data Unit (PDU) session establishment request from a UE, wherein the PDU session establishment request includes a multimodal service identifier; sending the PDU session establishment request to an Access and Mobility Management Function (AMF), and sending the PDU session establishment request to an Access Management Function (SMF) through the AMF, wherein the SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session.

[0018] Optionally, the method further includes: receiving updated QoS profile information from the SMF via the AMF.

[0019] Optionally, the method further includes: receiving updated QoS rules information from the SMF through the AMF; and sending the updated QoS rules information to the UE.

[0020] Optionally, the multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

[0021] Optionally, the multimodal service identifier is used to identify the same multimodal service or to identify multiple UEs sharing a PDU session.

[0022] The fourth aspect of this disclosure provides another shared session establishment method applied to an AMF, comprising: receiving a PDU session establishment request from a UE via an access network device, wherein the PDU session establishment request includes a multimodal service identifier; determining a target SMF based on the multimodal service identifier; and sending the PDU session establishment request to the target SMF.

[0023] Optionally, determining the target SMF based on the multimodal service identifier includes: using the SMF responsible for the multimodal service as the target SMF; or using the SMF to which the multiple PDU sessions corresponding to the multimodal service identifier belong as the target SMF.

[0024] Optionally, the method further includes: receiving updated QoS profile information and updated QoS rules information from the target SMF, and forwarding them to the access network device.

[0025] Optionally, the multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

[0026] Optionally, the multimodal service identifier is used to identify the same multimodal service or to identify multiple UEs sharing a PDU session.

[0027] A fifth aspect of this disclosure provides a shared session establishment apparatus applied to an SMF (Software-Defined Network). The apparatus includes: a transceiver unit configured to receive a PDU session establishment request from a UE via an access network device, wherein the PDU session establishment request includes a multimodal service identifier; and a processing unit configured to determine a corresponding PDU session based on the PDU session establishment request, and to bind the PDU session to a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session.

[0028] The sixth aspect of this disclosure provides another shared session establishment apparatus applied to a UE. The apparatus includes a transceiver unit for sending a PDU session establishment request to an SMF via an access network device. The PDU session establishment request includes a multimodal service identifier. The SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session.

[0029] A seventh aspect embodiment of this disclosure provides another shared session establishment apparatus applied to an access network device. The apparatus includes: a transceiver unit configured to receive a PDU session establishment request from a UE, wherein the PDU session establishment request includes a multimodal service identifier; the transceiver unit is further configured to send the PDU session establishment request to an Access and Mobility Management Function (AMF), and send the PDU session establishment request to an Access Management Function (SMF) through the AMF, wherein the SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session.

[0030] An eighth aspect embodiment of this disclosure provides another shared session establishment apparatus applied to an AMF, the apparatus comprising: a transceiver unit configured to receive a PDU session establishment request from a UE via an access network device, wherein the PDU session establishment request includes a multimodal service identifier; a processing unit configured to determine a target SMF based on the multimodal service identifier; the transceiver unit further configured to send the PDU session establishment request to the target SMF.

[0031] A ninth aspect embodiment of this disclosure provides a communication device, including: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and capable of implementing the shared session establishment method proposed in the first aspect embodiment of this disclosure, or implementing the shared session establishment method proposed in the second aspect embodiment of this disclosure, or implementing the shared session establishment method proposed in the third aspect embodiment of this disclosure, or implementing the shared session establishment method proposed in the fourth aspect embodiment of this disclosure.

[0032] A tenth aspect embodiment of this disclosure provides a communication device, comprising: a processor and an interface circuit; the interface circuit being configured to receive code instructions and transmit them to the processor; the processor being configured to execute the code instructions to perform a shared session establishment method as proposed in a first aspect embodiment of this disclosure, or to perform a shared session establishment method as proposed in a second aspect embodiment of this disclosure, or to perform a shared session establishment method as proposed in a third aspect embodiment of this disclosure, or to perform a shared session establishment method as proposed in a fourth aspect embodiment of this disclosure.

[0033] The eleventh aspect of this disclosure provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after being executed by a processor, the computer-executable instructions can implement the shared session establishment method proposed in the first aspect of this disclosure, or implement the shared session establishment method proposed in the second aspect of this disclosure, or implement the shared session establishment method proposed in the third aspect of this disclosure, or implement the shared session establishment method proposed in the fourth aspect of this disclosure.

[0034] The twelfth aspect of this disclosure provides a computer program product, including a computer program that, when executed by a processor, implements the shared session establishment method proposed in the first aspect of this disclosure, or implements the shared session establishment method proposed in the second aspect of this disclosure, or implements the shared session establishment method proposed in the third aspect of this disclosure, or implements the shared session establishment method proposed in the fourth aspect of this disclosure.

[0035] The shared session establishment method, apparatus, and communication device provided in this disclosure allow the SMF to receive a PDU session establishment request from a UE via an access network device. The PDU session establishment request includes a multimodal service identifier. The SMF determines the corresponding PDU session based on the PDU session establishment request and binds the PDU session to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0036] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0037] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0038] Figure 1 A flowchart illustrating a shared session establishment method provided in an embodiment of this disclosure;

[0039] Figure 2 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0040] Figure 3 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0041] Figure 4 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0042] Figure 5 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0043] Figure 6 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0044] Figure 7 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0045] Figure 8 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0046] Figure 9 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0047] Figure 10 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0048] Figure 11 A flowchart illustrating another shared session establishment method provided in this embodiment of the disclosure;

[0049] Figure 12 This is a schematic diagram of a shared session establishment device provided in an embodiment of the present disclosure;

[0050] Figure 13 A schematic diagram of another shared session establishment apparatus provided in an embodiment of this disclosure;

[0051] Figure 14 A schematic diagram of another shared session establishment apparatus provided in an embodiment of this disclosure;

[0052] Figure 15 A schematic diagram of another shared session establishment apparatus provided in an embodiment of this disclosure;

[0053] Figure 16 A block diagram of a UE provided in an embodiment of this disclosure;

[0054] Figure 17 This is a schematic diagram of the structure of a network-side device provided in an embodiment of the present disclosure. Detailed Implementation

[0055] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this disclosure as detailed in the appended claims.

[0056] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0057] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0058] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0059] With the rapid development of mobile networks, the era of the Internet of Things is approaching. Limited by the capabilities of a single device, a single User Equipment (UE) may not be able to complete complex requirements and tasks. In such cases, multiple UEs may need to work closely together to accomplish complex requirements and tasks. For example, in industrial scenarios, multiple different types of robots, monitors, and controllers need to coordinate closely to complete tasks on the production line. Or, in a future smart stage, multiple cameras, microphones, back-end processing servers, consoles, and speaker devices may need to work closely together to present a perfect stage effect.

[0060] However, the current standardized protocol only establishes a session for a single UE. Therefore, how to enable multiple UEs to share a session is a problem that needs to be solved.

[0061] When a UE establishes a PDU (Protocol Data Unit) session, the SMF (Session Management Function) and UPF (User Plane Function) each establish an N4 session context for that PDU session. The SMF and UPF communicate via the N4 interface, and the data transmitted between them can be included within the structure of the N4 session. The SMF also stores the relationship between the N4 session and the PDU session; one PDU session establishes one N4 session.

[0062] The SMF can store the UE session context and the N4 session context. The N4 session context can include at least one of the following pieces of information:

[0063] 1. N4 session ID, URRs (Usage Reporting Rules), QERs (QoS Enforcement Rules), FARs (Forwarding Action Rules), and MARs (Multi-Access Rules);

[0064] 2. A list of PDRs (Packet Detection Rules), which may include the following information:

[0065] 1) Tunnel information;

[0066] 2) PFS (Packet Filter Set) includes rules for filtering data packets;

[0067] 3) QFI (QoSFlowID, ID of QoS flow).

[0068] As an example, the attribute information in the PDRs list can be shown in Table 1.

[0069] Table 1

[0070]

[0071]

[0072] It is understood that each element and each correspondence in Table 1 exists independently; these elements and correspondences are listed in the same table as an example, but this does not mean that all elements and correspondences in the table must exist simultaneously as shown in Table 1. The value of each element and each correspondence is independent of any other element value or correspondence in Table 1. Therefore, those skilled in the art will understand that the value of each element and each correspondence in Table 1 is an independent embodiment.

[0073] To address the aforementioned problems, this disclosure provides a method, apparatus, and communication device for establishing a shared session.

[0074] Figure 1 This is a flowchart illustrating a shared session establishment method provided in an embodiment of this disclosure. This shared session establishment method can be executed by SMF.

[0075] like Figure 1 As shown, the shared session establishment method may include the following steps:

[0076] Step 101: Receive a PDU session establishment request from the UE through the access network device, wherein the PDU session establishment request includes a multimodal service identifier.

[0077] The UE can be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. The name of the UE may vary in different systems. A wireless UE can communicate with one or more CNs (Core Networks) via a RAN (Radio Access Network). A wireless UE can be a mobile terminal device, such as a mobile phone (or "cellular" phone), or a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device, which exchanges voice and / or data with the radio access network.

[0078] For example, a UE can be a PCS (Personal Communication Service) phone, a cordless phone, a SIP (Session Initiated Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), or other similar devices. A wireless UE can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile device, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device; however, this disclosure does not limit the terminology used in this embodiment.

[0079] In this context, the access network equipment takes a base station as an example. A base station can include multiple cells that provide services to the UE. Depending on the specific application, each cell can contain multiple TRPs (Transmission Reception Points or Transmit Receive Points). Each TRP can contain one or more antenna panels, or it can be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. For example, the base station involved in the embodiments of this disclosure can be a BTS (Base Transceiver Station) in GSM (Global System for Mobile communications) or CDMA (Code Division Multiple Access), or a base station (NodeB) in WCDMA (Wide-band Code Division Multiple Access), or an evolved Node B (eNB or e-NodeB) in LTE (long term evolution) system, or a 5G base station (gNB) in the 5G network architecture (next generation system), or a HeNB (Home evolved Node B), relay node, femto, pico, etc., and is not limited in the embodiments of this disclosure.

[0080] In this embodiment of the disclosure, multimodal service refers to a service or task that requires multiple UEs to work together, that is, multiple UEs execute the same multimodal service.

[0081] In this embodiment of the disclosure, the UE can send a PDU session establishment request to the SMF through the access network device. The PDU session establishment request may include a multimodal service identifier, which can be used to identify the same multimodal service, or the multimodal service identifier can also be used to identify multiple UEs sharing a PDU session.

[0082] Optionally, the UE can send a PDU session establishment request to the AMF (Access and Mobility Management Function) through the access network equipment, and send a PDU session establishment request to the aforementioned SMF through the AMF.

[0083] In one possible implementation of this disclosure, the AMF can send a PDU session establishment request to the SMF responsible for the aforementioned multimodal services.

[0084] In another possible implementation of the present disclosure, the AMF can send a PDU session establishment request to the SMF to which the multiple PDU sessions corresponding to the above-mentioned multimodal service identifier belong.

[0085] Step 102: Determine the corresponding PDU session based on the PDU session establishment request.

[0086] In this embodiment of the disclosure, after receiving the PDU session establishment request, the SMF can determine the PDU session corresponding to the PDU session establishment request.

[0087] Step 103: Bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the aforementioned shared N4 session.

[0088] In this embodiment of the disclosure, the shared N4 session corresponding to the multimodal service identifier refers to the N4 session corresponding to the PDU session already established by the UE executing the multimodal service corresponding to the multimodal service identifier.

[0089] In this embodiment of the disclosure, the SMF can bind the PDU session determined in step 102 to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the aforementioned shared N4 session.

[0090] The shared session establishment method of this disclosure involves the SMF receiving a PDU session establishment request from a UE via an access network device. The PDU session establishment request includes a multimodal service identifier. The SMF determines the corresponding PDU session based on the PDU session establishment request and binds the PDU session to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0091] This disclosure provides another method for establishing a shared session. Figure 2 This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by an SMF (Software-Defined Function). This shared session establishment method can be executed alone, or it can be executed in conjunction with any embodiment of this disclosure or possible implementations within those embodiments, or it can be executed in conjunction with any technical solution in the related art.

[0092] like Figure 2 As shown, the shared session establishment method may include the following steps:

[0093] Step 201: Receive a PDU session establishment request from the UE through the access network device, wherein the PDU session establishment request includes a multimodal service identifier.

[0094] In the embodiments of this disclosure, step 201 can be implemented in any of the embodiments of this disclosure. The embodiments of this disclosure do not limit this and will not elaborate further.

[0095] In any embodiment of this disclosure, the multimodal service identifier may include one or more of the following: mission ID, shared session ID (e.g., the shared session ID may be a shared PDU session ID, i.e., sharedPDUsessionID), and group ID.

[0096] Step 202: Determine whether a PDU session has already been established for the multimodal service identifier.

[0097] In this embodiment of the disclosure, after receiving a PDU session establishment request, the SMF can determine whether other UEs performing the multimodal service corresponding to the multimodal service identifier have established a PDU session based on the multimodal service identifier. If other UEs performing the multimodal service have established a PDU session, that is, there is a PDU session established for the multimodal service identifier, then step 203 can be executed. If other UEs performing the multimodal service have not established a PDU session, that is, there is no PDU session established for the multimodal service identifier, then step 204 can be executed.

[0098] Step 203: If yes, then establish the PDU session corresponding to the UE or join the PDU session established for the multimodal service identifier.

[0099] In this embodiment of the disclosure, when other UEs performing the aforementioned multimodal services have already established PDU sessions, the SMF can establish a PDU session corresponding to the UE that initiated the PDU session establishment request, or join a PDU session already established by other UEs performing the aforementioned multimodal services. The shared N4 session corresponding to the multimodal service identifier can be the N4 session corresponding to a PDU session already established by a UE performing the aforementioned multimodal services.

[0100] Step 204: If not, establish a PDU session and the corresponding N4 session.

[0101] In this embodiment of the disclosure, if other UEs performing the above-mentioned multimodal services have not established a PDU session, the SMF can establish a PDU session corresponding to the UE that initiated the PDU session establishment request, and establish an N4 session corresponding to the PDU session. At this time, the N4 session can be the shared N4 session corresponding to the multimodal service identifier.

[0102] As an example, the SMF can determine whether other UEs executing the multimodal service corresponding to the multimodal service identifier have established a PDU session based on the multimodal service identifier, such as missionID or group ID. If established, the SMF can create a new PDU session and update the N4 session context, or join an existing PDU session and update the N4 session context. If not established, the SMF can create a new PDU session and create a new N4 session context.

[0103] Step 205: Bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the aforementioned shared N4 session.

[0104] In the embodiments of this disclosure, step 205 can be implemented in any of the embodiments of this disclosure. The embodiments of this disclosure do not limit this and will not elaborate further.

[0105] The shared session establishment method of this disclosure involves the SMF receiving a PDU session establishment request from a UE via an access network device. The PDU session establishment request includes a multimodal service identifier. The SMF determines the corresponding PDU session based on the PDU session establishment request and binds the PDU session to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0106] It should be noted that the above-mentioned possible implementations can be executed individually or in combination, and this disclosure does not limit them.

[0107] This disclosure provides another method for establishing a shared session. Figure 3 This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by an SMF (Software-Defined Function). This shared session establishment method can be executed alone, or it can be executed in conjunction with any embodiment of this disclosure or possible implementations within those embodiments, or it can be executed in conjunction with any technical solution in the related art.

[0108] like Figure 3 As shown, the shared session establishment method may include the following steps:

[0109] Step 301: Receive a PDU session establishment request from the UE through the access network device, wherein the PDU session establishment request includes a multimodal service identifier.

[0110] Step 302: Determine the corresponding PDU session based on the PDU session establishment request.

[0111] In the embodiments of this disclosure, steps 301 to 302 can be implemented in any of the embodiments of this disclosure. The embodiments of this disclosure do not limit this and will not elaborate further.

[0112] Step 303: Send the updated N4 context parameters corresponding to the shared N4 session to the UPF.

[0113] In this embodiment of the disclosure, the SMF can send the updated N4 context parameters corresponding to the shared N4 session to the UPF. For example, the SMF can send N4 session modification information to the UPF, wherein the information may include the updated N4 context parameters, thereby updating the updated N4 context parameters on the UPF.

[0114] Step 304: Send the updated QoS parameters to the UE and access network equipment.

[0115] In this embodiment, the SMF can also send updated QoS parameters to the UE and the access network device. The updated QoS parameters are a part of the updated N4 context parameters. Upon receiving the updated QoS parameters, the UE can determine its corresponding service level and configuration based on these parameters, and thus take appropriate flow control measures. Similarly, upon receiving the updated QoS parameters, the access network device can provide corresponding services to the UE based on these parameters.

[0116] In one possible implementation of this disclosure, the updated QoS parameters may include an updated QoS profile (i.e., QoS profile information) and updated QoS rules. The SMF can send the updated QoS profile information to the access network device and the updated QoS rules information to the UE.

[0117] As an example, the SMF can send updated QoS profile information to the access network device through the AMF, and also send updated QoS rules information to the access network device through the AMF. The access network device then forwards the updated QoS rules information to the UE.

[0118] The shared session establishment method of this disclosure involves the SMF receiving a PDU session establishment request from a UE via an access network device. The PDU session establishment request includes a multimodal service identifier. The SMF determines the corresponding PDU session based on the PDU session establishment request and binds the PDU session to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0119] It should be noted that the above-mentioned possible implementations can be executed individually or in combination, and this disclosure does not limit them.

[0120] This disclosure provides another method for establishing a shared session. Figure 4 This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by a UE. This shared session establishment method can be executed alone, or it can be executed together with any embodiment of this disclosure or possible implementations within the embodiments, or it can be executed together with any technical solution in the related art.

[0121] like Figure 4 As shown, the shared session establishment method may include the following steps:

[0122] Step 401: Send a PDU session establishment request to the SMF through the access network device. The PDU session establishment request includes a multimodal service identifier. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session.

[0123] In this embodiment of the disclosure, multimodal service refers to a service or task that requires multiple UEs to work together, that is, multiple UEs execute the same multimodal service.

[0124] In this embodiment of the disclosure, the UE can send a PDU session establishment request to the SMF through the access network device. The PDU session establishment request may include a multimodal service identifier, which can be used to identify the same multimodal service, or the multimodal service identifier can also be used to identify multiple UEs sharing a PDU session.

[0125] Optionally, the UE can send a PDU session establishment request to the AMF through the access network equipment, and send a PDU session establishment request to the aforementioned SMF through the AMF.

[0126] In one possible implementation of this disclosure, the AMF can send a PDU session establishment request to the SMF responsible for the aforementioned multimodal services.

[0127] In another possible implementation of the present disclosure, the AMF can send a PDU session establishment request to the SMF to which the multiple PDU sessions corresponding to the above-mentioned multimodal service identifier belong.

[0128] In this embodiment of the disclosure, after receiving the PDU session establishment request, the SMF can determine the PDU session corresponding to the PDU session establishment request based on the PDU session establishment request, and bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session.

[0129] It should be noted that the aforementioned Figures 1 to 3 The explanation of the method executed on the SMF side in any embodiment also applies to the method executed on the UE side in the same embodiment, and the implementation principle is similar, so it will not be repeated here.

[0130] In the shared session establishment method of this disclosure, the UE sends a PDU session establishment request to the SMF through the access network device. The PDU session establishment request includes a multimodal service identifier. The SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, meaning multiple UEs can use the same shared N4 session, reducing network resource consumption.

[0131] This disclosure provides another method for establishing a shared session. Figure 5This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by a UE. This shared session establishment method can be executed alone, or it can be executed together with any embodiment of this disclosure or possible implementations within the embodiments, or it can be executed together with any technical solution in the related art.

[0132] like Figure 5 As shown, the shared session establishment method may include the following steps:

[0133] Step 501: Send a PDU session establishment request to the SMF through the access network device. The PDU session establishment request includes a multimodal service identifier. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session.

[0134] In the embodiments of this disclosure, step 501 can be implemented in any of the various embodiments of this disclosure. The embodiments of this disclosure do not limit this and will not elaborate further.

[0135] In any embodiment of this disclosure, the multimodal service identifier may include one or more of the following: mission ID, shared session ID (e.g., the shared session ID may be a shared PDU session ID, i.e., sharedPDUsessionID), and group ID.

[0136] Step 502: Receive the updated QoS rules information fed back by SMF through the access network equipment.

[0137] In this embodiment of the disclosure, the SMF can send the updated N4 context parameters corresponding to the shared N4 session to the UPF. The updated N4 context parameters may include updated QoS parameters. The updated QoS parameters are then sent to the UE. The updated QoS parameters may include updated QoS rules. Accordingly, after receiving the updated QoS rules, the UE can determine its own service level and configuration based on the updated QoS rules, and thus take corresponding flow control measures.

[0138] As an example, the SMF can send updated QoS rules information to the access network device through the AMF, and the access network device can then forward the updated QoS rules information to the UE.

[0139] In the shared session establishment method of this disclosure, the UE sends a PDU session establishment request to the SMF through the access network device. The PDU session establishment request includes a multimodal service identifier. The SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, meaning multiple UEs can use the same shared N4 session, reducing network resource consumption.

[0140] It should be noted that the above-mentioned possible implementations can be executed individually or in combination, and this disclosure does not limit them.

[0141] This disclosure provides another method for establishing a shared session. Figure 6 This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by an access network device. This shared session establishment method can be executed alone, or it can be executed together with any embodiment of this disclosure or possible implementations within the embodiments, or it can be executed together with any technical solution in the related art.

[0142] like Figure 6 As shown, the shared session establishment method may include the following steps:

[0143] Step 601: Receive a PDU session establishment request from the UE, wherein the PDU session establishment request includes a multimodal service identifier.

[0144] In this embodiment of the disclosure, multimodal service refers to a service or task that requires multiple UEs to work together, that is, multiple UEs execute the same multimodal service.

[0145] In this embodiment of the disclosure, the PDU session establishment request may include a multimodal service identifier, which may be used to identify the same multimodal service, or the multimodal service identifier may also be used to identify multiple UEs sharing PDU sessions.

[0146] Step 602: Send the PDU session establishment request to the AMF, and send the PDU session establishment request to the SMF through the AMF. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the above-mentioned shared N4 session.

[0147] In this embodiment of the disclosure, the UE can send a PDU session establishment request to the AMF through the access network device, and send a PDU session establishment request to the SMF through the AMF.

[0148] In one possible implementation of this disclosure, the AMF can send a PDU session establishment request to the SMF responsible for the aforementioned multimodal services.

[0149] In another possible implementation of the present disclosure, the AMF can send a PDU session establishment request to the SMF to which the multiple PDU sessions corresponding to the above-mentioned multimodal service identifier belong.

[0150] In this embodiment of the disclosure, after receiving the PDU session establishment request, the SMF can determine the corresponding PDU session based on the PDU session establishment request, and bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session.

[0151] It should be noted that the aforementioned Figures 1 to 3 The explanation of the method executed on the SMF side in any embodiment also applies to the method executed on the access network device side in the same embodiment. The implementation principle is similar and will not be repeated here.

[0152] The shared session establishment method of this disclosure embodiment receives a PDU session establishment request from a UE through an access network device. The PDU session establishment request includes a multimodal service identifier. The device sends the PDU session establishment request to the AMF (Access Provider Function) and then to the SMF (Access Provider Function). The SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0153] This disclosure provides another method for establishing a shared session. Figure 7 This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by an access network device. This shared session establishment method can be executed alone, or it can be executed together with any embodiment of this disclosure or possible implementations within the embodiments, or it can be executed together with any technical solution in the related art.

[0154] like Figure 7 As shown, the shared session establishment method may include the following steps:

[0155] Step 701: Receive a PDU session establishment request from the UE, wherein the PDU session establishment request includes a multimodal service identifier.

[0156] In any embodiment of this disclosure, the multimodal service identifier may include one or more of the following: mission ID, shared session ID (e.g., the shared session ID may be a shared PDU session ID, i.e., sharedPDUsessionID), and group ID.

[0157] Step 702: Send the PDU session establishment request to the AMF, and then send the PDU session establishment request to the SMF through the AMF.

[0158] In this embodiment of the disclosure, after receiving a PDU session establishment request sent by a UE, the access network device can send the PDU session establishment request to the AMF and then send the PDU session establishment request to the SMF through the AMF. Accordingly, after receiving the PDU session establishment request, the SMF can bind the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the aforementioned shared N4 session.

[0159] In the embodiments of this disclosure, steps 701 to 702 can be implemented in any of the embodiments of this disclosure. The embodiments of this disclosure do not limit this and will not be described in detail.

[0160] Step 703: Receive updated QoS profile information from SMF via AMF.

[0161] In this embodiment of the disclosure, the SMF can send updated N4 context parameters corresponding to the shared N4 session to the UPF. The updated N4 context parameters may include updated QoS parameters, which are then sent to the access network device. The updated QoS parameters may include updated QoS profile information. Accordingly, upon receiving the updated QoS profile information, the access network device can provide corresponding services to the UE based on the updated QoS profile information.

[0162] The shared session establishment method of this disclosure embodiment receives a PDU session establishment request from a UE through an access network device. The PDU session establishment request includes a multimodal service identifier. The device sends the PDU session establishment request to the AMF (Access Provider Function) and then to the SMF (Access Provider Function). The SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0163] It should be noted that the above-mentioned possible implementations can be executed individually or in combination, and this disclosure does not limit them.

[0164] This disclosure provides another method for establishing a shared session. Figure 8 This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by an access network device. This shared session establishment method can be executed alone, or it can be executed together with any embodiment of this disclosure or possible implementations within the embodiments, or it can be executed together with any technical solution in the related art.

[0165] like Figure 8 As shown, the shared session establishment method may include the following steps:

[0166] Step 801: Receive a PDU session establishment request from the UE, wherein the PDU session establishment request includes a multimodal service identifier.

[0167] Step 802: Send the PDU session establishment request to the AMF, and then send the PDU session establishment request to the SMF through the AMF.

[0168] In this embodiment of the disclosure, after receiving a PDU session establishment request sent by a UE, the access network device can send the PDU session establishment request to the AMF and then send the PDU session establishment request to the SMF through the AMF. Accordingly, after receiving the PDU session establishment request, the SMF can bind the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the aforementioned shared N4 session.

[0169] In the embodiments of this disclosure, steps 801 to 802 can be implemented in any of the ways described in the various embodiments of this disclosure. The embodiments of this disclosure do not limit this and will not elaborate further.

[0170] Step 803: Receive updated QoS rules information from SMF via AMF.

[0171] Step 804: Send the updated QoS rules information to the UE.

[0172] In this embodiment, the SMF can send updated N4 context parameters corresponding to the shared N4 session to the UPF. These updated N4 context parameters may include updated QoS parameters, which are then sent to the access network device. The updated QoS parameters may include updated QoS rules information. Upon receiving the updated QoS rules information, the access network device can forward it to the UE. Consequently, upon receiving the updated QoS rules information, the UE can determine its own service level and configuration based on the updated QoS rules, and thus take appropriate flow control measures.

[0173] The shared session establishment method of this disclosure embodiment receives a PDU session establishment request from a UE through an access network device. The PDU session establishment request includes a multimodal service identifier. The device sends the PDU session establishment request to the AMF (Access Provider Function) and then to the SMF (Access Provider Function). The SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0174] It should be noted that the above-mentioned possible implementations can be executed individually or in combination, and this disclosure does not limit them.

[0175] This disclosure provides another method for establishing a shared session. Figure 9 This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by the AMF (Advanced Management Function). This shared session establishment method can be executed alone, or it can be executed in conjunction with any embodiment of this disclosure or possible implementations within those embodiments, or it can be executed in conjunction with any technical solution in the related art.

[0176] like Figure 9 As shown, the shared session establishment method may include the following steps:

[0177] Step 901: Receive a PDU session establishment request from the UE through the access network device, wherein the PDU session establishment request includes a multimodal service identifier.

[0178] In this embodiment of the disclosure, multimodal service refers to a service or task that requires multiple UEs to work together, that is, multiple UEs execute the same multimodal service.

[0179] In this embodiment of the disclosure, the PDU session establishment request may include a multimodal service identifier, which may be used to identify the same multimodal service, or the multimodal service identifier may also be used to identify multiple UEs sharing PDU sessions.

[0180] In this embodiment of the disclosure, the UE can send a PDU session establishment request to the AMF through the access network device. Correspondingly, the AMF can receive the PDU session establishment request sent by the UE through the access network device.

[0181] Step 902: Determine the target SMF based on the multimodal service identifier.

[0182] In this embodiment of the disclosure, the target SMF refers to the SMF that needs to receive the PDU session establishment request.

[0183] In this embodiment of the disclosure, the AMF can determine the target SMF based on the multimodal service identifier in the PDU session establishment request.

[0184] In one possible implementation of this disclosure, the AMF can take the SMF responsible for the aforementioned multimodal services as the target SMF.

[0185] In another possible implementation of the embodiments of this disclosure, the AMF can take the SMF to which the multiple PDU sessions corresponding to the above-mentioned multimodal service identifier belong as the target SMF.

[0186] Step 903: Send the PDU session establishment request to the target SMF.

[0187] In this embodiment of the disclosure, after determining the target SMF, the AMF can send a PDU session establishment request to the target SMF. Correspondingly, after receiving the PDU session establishment request, the target SMF can determine the corresponding PDU session based on the PDU session establishment request, and bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session.

[0188] It should be noted that the aforementioned Figures 1 to 3 The explanation of the method executed on the SMF side in any embodiment also applies to the method executed on the AMF side in this embodiment. The implementation principle is similar and will not be repeated here.

[0189] The shared session establishment method of this disclosure involves the AMF receiving a PDU session establishment request from a UE via an access network device. The PDU session establishment request includes a multimodal service identifier. A target SMF is determined based on the multimodal service identifier, and the PDU session establishment request is sent to the target SMF. The target SMF determines the corresponding PDU session based on the PDU session establishment request and binds the PDU session to a shared N4 session corresponding to the multimodal service identifier. This allows multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0190] This disclosure provides another method for establishing a shared session. Figure 10 This is a flowchart illustrating another shared session establishment method provided by an embodiment of this disclosure. This shared session establishment method can be executed by the AMF (Advanced Management Function). This shared session establishment method can be executed alone, or it can be executed in conjunction with any embodiment of this disclosure or possible implementations within those embodiments, or it can be executed in conjunction with any technical solution in the related art.

[0191] like Figure 10 As shown, the shared session establishment method may include the following steps:

[0192] Step 1001: Receive a PDU session establishment request from the UE through the access network device, wherein the PDU session establishment request includes a multimodal service identifier.

[0193] In any embodiment of this disclosure, the multimodal service identifier may include one or more of the following: mission ID, shared session ID (e.g., the shared session ID may be a shared PDU session ID, i.e., sharedPDUsessionID), and group ID.

[0194] Step 1002: Determine the target SMF based on the multimodal service identifier.

[0195] Step 1003: Send the PDU session establishment request to the target SMF.

[0196] In the embodiments of this disclosure, steps 1001 to 1003 can be implemented in any of the ways described in the various embodiments of this disclosure. The embodiments of this disclosure do not limit this and will not elaborate further.

[0197] Step 1004: Receive updated QoS profile information and updated QoS rules information from the target SMF, and forward them to the access network device.

[0198] In this embodiment, the target SMF can also send updated QoS profile information and updated QoS rules information to the access network device via the AMF. Upon receiving the updated QoS profile information and updated QoS rules information, the access network device can provide corresponding services to the UE based on the updated QoS profile information. Furthermore, the access network device can forward the updated QoS rules information to the UE. Upon receiving the updated QoS rules information, the UE can determine its corresponding service level and configuration based on the updated QoS rules, thereby enabling it to take appropriate flow control measures.

[0199] The shared session establishment method of this disclosure involves the AMF receiving a PDU session establishment request from a UE via an access network device. The PDU session establishment request includes a multimodal service identifier. A target SMF is determined based on the multimodal service identifier, and the PDU session establishment request is sent to the target SMF. The target SMF determines the corresponding PDU session based on the PDU session establishment request and binds the PDU session to a shared N4 session corresponding to the multimodal service identifier. This allows multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0200] It should be noted that the above-mentioned possible implementations can be executed individually or in combination, and this disclosure does not limit them.

[0201] In any embodiment of this disclosure, multiple UEs performing the same multimodal service can establish PDU sessions separately. The established PDU sessions can carry a multimodal service identifier. The network can select the same or a specific SMF (referred to as the target SMF in this disclosure) based on the multimodal service identifier, and simultaneously use the same N4 session (referred to as the shared N4 session in this disclosure). As an example, the interaction process between the UE, access network device, AMF, SMF, and UPF can be as follows: Figure 11 As shown.

[0202] Step 1: UE1 can initiate a multimodal service, which refers to a task requiring collaboration among multiple UEs. It obtains the mission ID, sharedPDUsessionID, or group ID through the application layer. These IDs identify the same multimodal service or a group of UEs that can share a PDU session. UE1 initiates a session establishment process by sending a PDU session establishment request to the AMF through the access network device. This request may include information such as the coordinated type and the mission ID.

[0203] Step 2: The AMF determines the target SMF based on the request type and forwards the PDU session establishment request (PDUSession_CreateSMContext Request) to the target SMF.

[0204] Step 3: The target SMF determines whether other UEs executing the multimodal service corresponding to the multimodal service identifier (e.g., missionID or group ID) have already established a PDU session based on the multimodal service identifier (e.g., missionID or group ID) in the PDU session establishment request sent by the AMF. If it has been established, the target SMF can create a new PDU session and update the N4 session context, or join an existing PDU session and update the N4 session context. If it has not been established, the target SMF can create a new PDU session and create a new N4 session context.

[0205] Step 4: If the target SMF determines that a PDU session has already been established for the multimodal service identifier, it sends N4 session modification information to the UPF and updates the updated N4 context parameters to the UPF.

[0206] In steps 5 and 6, the target SMF sends the session-related updated QoS profile information to the access network device and the updated QoS rules information to the UE. For example, the target SMF can send the updated QoS profile and updated QoS rules information to the AMF via N1N2 messages. The AMF then sends the updated QoS profile and updated QoS rules information to the access network device via an N2 PDU session request. The access network device then sends the updated QoS rules information to the UE via an N2 PDU session request.

[0207] With the above Figures 1 to 3 Corresponding to the shared session establishment method provided in the embodiments, this disclosure also provides a shared session establishment apparatus. Since the shared session establishment apparatus provided in the embodiments of this disclosure is similar to the one described above... Figures 1 to 3 The shared session establishment method provided in the embodiments corresponds to the shared session establishment method provided in the embodiments of this disclosure, and therefore the implementation of the shared session establishment method is also applicable to the shared session establishment apparatus provided in the embodiments of this disclosure, and will not be described in detail in the embodiments of this disclosure.

[0208] Figure 12 This is a schematic diagram of a shared session establishment apparatus provided in an embodiment of the present disclosure. This apparatus can be applied in SMF (Self-Service Formatting).

[0209] like Figure 12 As shown, the shared session establishment apparatus 1200 may include: a transceiver unit 1201 and a processing unit 1202, wherein:

[0210] The transceiver unit 1201 is used to receive a PDU session establishment request from the UE through the access network equipment, wherein the PDU session establishment request includes a multimodal service identifier.

[0211] The processing unit 1202 is configured to determine the corresponding PDU session based on the PDU session establishment request, and to bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the aforementioned shared N4 session.

[0212] Optionally, the processing unit 1202 is specifically used to: send the updated N4 context parameters corresponding to the shared N4 session to the User Plane Function (UPF); and send the updated Quality of Service (QoS) parameters to the UE and the access network equipment.

[0213] Optionally, the transceiver unit 1201 is specifically used to: send updated Quality of Service (QoS) rules information to the UE; and send updated Quality of Service Profile (QoS profile) information to the access network device.

[0214] Optionally, the processing unit 1202 is specifically used to: determine whether a PDU session established for the multimodal service identifier already exists.

[0215] Optionally, the processing unit 1202 is further configured to: if so, establish a PDU session corresponding to the UE or join a PDU session established for the multimodal service identifier.

[0216] Optionally, the processing unit 1202 is further configured to: if not, establish a PDU session and establish an N4 session corresponding to the PDU session.

[0217] Optionally, the multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

[0218] Optionally, the multimodal service identifier is used to identify the same multimodal service or to identify multiple UEs sharing a PDU session.

[0219] The shared session establishment apparatus of this disclosure embodiment receives a PDU session establishment request from a UE through an access network device. The PDU session establishment request includes a multimodal service identifier. Based on the PDU session establishment request, a corresponding PDU session is determined, and the PDU session is bound to a shared N4 session corresponding to the multimodal service identifier. This allows multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, meaning multiple UEs can use the same shared N4 session, reducing network resource consumption.

[0220] With the above Figures 4 to 5 Corresponding to the shared session establishment method provided in the embodiments, this disclosure also provides a shared session establishment apparatus. Since the shared session establishment apparatus provided in the embodiments of this disclosure is similar to the one described above... Figures 4 to 5 The shared session establishment method provided in the embodiments corresponds to the shared session establishment method provided in the embodiments of this disclosure, and therefore the implementation of the shared session establishment method is also applicable to the shared session establishment apparatus provided in the embodiments of this disclosure, and will not be described in detail in the embodiments of this disclosure.

[0221] Figure 13 This is a schematic diagram of another shared session establishment apparatus provided in an embodiment of this disclosure. This apparatus can be applied in a UE.

[0222] like Figure 13 As shown, the shared session establishment device 1300 may include: a transceiver unit 1301, wherein:

[0223] The transceiver unit 1301 is used to send a PDU session establishment request to the SMF through the access network equipment. The PDU session establishment request includes a multimodal service identifier. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session.

[0224] Optionally, the transceiver unit 1301 is also configured to: receive updated QoS rules information fed back by the SMF through the access network equipment.

[0225] Optionally, the multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

[0226] Optionally, the multimodal service identifier is used to identify the same multimodal service or to identify multiple UEs sharing a PDU session.

[0227] In the shared session establishment apparatus of this disclosure, the UE sends a PDU session establishment request to the SMF through the access network device. The PDU session establishment request includes a multimodal service identifier. The SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, meaning multiple UEs can use the same shared N4 session, reducing network resource consumption.

[0228] With the above Figures 6 to 8 Corresponding to the shared session establishment method provided in the embodiments, this disclosure also provides a shared session establishment apparatus. Since the shared session establishment apparatus provided in the embodiments of this disclosure is similar to the one described above... Figures 6 to 8 The shared session establishment method provided in the embodiments corresponds to the shared session establishment method provided in the embodiments of this disclosure, and therefore the implementation of the shared session establishment method is also applicable to the shared session establishment apparatus provided in the embodiments of this disclosure, and will not be described in detail in the embodiments of this disclosure.

[0229] Figure 14 This is a schematic diagram of another shared session establishment apparatus provided in an embodiment of the present disclosure. This apparatus can be applied to access network devices.

[0230] like Figure 14 As shown, the shared session establishment apparatus 1400 may include: a transceiver unit 1401, wherein:

[0231] The transceiver unit 1401 is used to receive a PDU session establishment request from the UE, wherein the PDU session establishment request includes a multimodal service identifier.

[0232] The transceiver unit 1401 is also used to send a PDU session establishment request to the AMF and send a PDU session establishment request to the SMF through the AMF. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier can share the aforementioned shared N4 session.

[0233] Optionally, the transceiver unit 1401 is also configured to: receive updated QoS profile information from the SMF via the AMF.

[0234] Optionally, the transceiver unit 1401 is further configured to: receive updated QoS rules information from the SMF via the AMF; and send the updated QoS rules information to the UE.

[0235] Optionally, the multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

[0236] Optionally, the multimodal service identifier is used to identify the same multimodal service or to identify multiple UEs sharing a PDU session.

[0237] The shared session establishment apparatus of this disclosure receives a PDU session establishment request from a UE via an access network device. The PDU session establishment request includes a multimodal service identifier. The apparatus sends the PDU session establishment request to the AMF (Access Provider Function) and then to the SMF (Service Provider Function). The SMF binds the PDU session corresponding to the PDU session establishment request to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0238] With the above Figures 9 to 10 Corresponding to the shared session establishment method provided in the embodiments, this disclosure also provides a shared session establishment apparatus. Since the shared session establishment apparatus provided in the embodiments of this disclosure is similar to the one described above... Figures 9 to 10 The shared session establishment method provided in the embodiments corresponds to the shared session establishment method provided in the embodiments of this disclosure, and therefore the implementation of the shared session establishment method is also applicable to the shared session establishment apparatus provided in the embodiments of this disclosure, and will not be described in detail in the embodiments of this disclosure.

[0239] Figure 15 This is a schematic diagram of another shared session establishment apparatus provided in an embodiment of this disclosure. This apparatus can be applied in an AMF (Advanced Management Function).

[0240] like Figure 15 As shown, the shared session establishment apparatus 1500 may include: a transceiver unit 1501 and a processing unit 1502, wherein:

[0241] The transceiver unit 1501 is used to receive a PDU session establishment request from the UE through the access network equipment, wherein the PDU session establishment request includes a multimodal service identifier.

[0242] Processing unit 1502 is used to determine the target SMF based on the multimodal service identifier.

[0243] The transceiver unit 1501 is also used to send PDU session establishment requests to the target SMF.

[0244] Optionally, the processing unit 1502 is specifically used to: take the SMF responsible for multimodal services as the target SMF; or take the SMF to which the multiple PDU sessions corresponding to the multimodal service identifier belong as the target SMF.

[0245] Optionally, the transceiver unit 1501 is further configured to: receive updated QoS profile information and updated QoS rules information from the target SMF, and forward them to the access network device.

[0246] Optionally, the multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

[0247] Optionally, the multimodal service identifier is used to identify the same multimodal service or to identify multiple UEs sharing a PDU session.

[0248] The shared session establishment apparatus of this disclosure embodiment receives a PDU session establishment request from a UE through an access network device. The PDU session establishment request includes a multimodal service identifier. A target SMF is determined based on the multimodal service identifier, and the PDU session establishment request is sent to the target SMF. The target SMF determines the corresponding PDU session based on the PDU session establishment request and binds the PDU session to a shared N4 session corresponding to the multimodal service identifier, enabling multiple PDU sessions corresponding to the multimodal service identifier to share the shared N4 session. Therefore, when multiple UEs collaboratively complete multimodal services, multiple PDU sessions can share the same shared N4 session, reducing network resource consumption.

[0249] To implement the above embodiments, this disclosure also proposes a communication device.

[0250] The communication device provided in this disclosure includes a processor, a transceiver, a memory, and an executable program stored in the memory and capable of being run by the processor. When the processor runs the executable program, it executes the method proposed in any of the foregoing embodiments.

[0251] The communication equipment can be the aforementioned SMF, UE, access network equipment, AMF, and UPF.

[0252] The processor may include various types of storage media, which are non-transitory computer storage media capable of continuing to store information after the communication device loses power. Here, the communication device includes SMF, UE, access network equipment, AMF, and UPF.

[0253] The processor can be connected to the memory via a bus or similar means to read executable programs stored in the memory, for example, such as... Figures 1 to 11 At least one of them.

[0254] To implement the above embodiments, this disclosure proposes another communication device, which includes: a processor and an interface circuit; the interface circuit is configured to receive code instructions and transmit them to the processor; the processor is configured to execute the code instructions to perform the method proposed in any of the foregoing embodiments.

[0255] The communication device can be the aforementioned SMF, UE, access network equipment, AMF, and UPF.

[0256] To implement the above embodiments, this disclosure also proposes a computer storage medium.

[0257] The computer storage medium provided in this disclosure embodiment stores an executable program; after the executable program is executed by a processor, it can implement the method of any of the foregoing embodiments, for example, as... Figures 1 to 11 At least one of them.

[0258] Figure 16 This is a block diagram of a UE1200 provided in an embodiment of this disclosure. For example, the UE1600 may be a mobile phone, computer, digital broadcast user equipment, messaging transceiver, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0259] Reference Figure 16 UE1600 may include at least one of the following components: processing component 1602, memory 1604, power supply component 1606, multimedia component 1608, audio component 1610, input / output (I / O) interface 1612, sensor component 1614, and communication component 1616.

[0260] Processing component 1602 typically controls the overall operation of UE 1600, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1602 may include at least one processor 1620 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1602 may include at least one module to facilitate interaction between processing component 1602 and other components. For example, processing component 1602 may include a multimedia module to facilitate interaction between multimedia component 1608 and processing component 1602.

[0261] Memory 1604 is configured to store various types of data to support operation on UE 1600. Examples of this data include instructions for any application or method operating on UE 1600, contact data, phonebook data, messages, pictures, videos, etc. Memory 1604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0262] Power supply component 1606 provides power to various components of UE1600. Power supply component 1606 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power to UE1600.

[0263] The multimedia component 1608 includes a screen that provides an output interface between the UE 1600 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes at least one touch sensor to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or swipe action but also detect the wake-up time and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component 1608 includes a front-facing camera and / or a rear-facing camera. When the UE 1600 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0264] Audio component 1610 is configured to output and / or input audio signals. For example, audio component 1610 includes a microphone (MIC) configured to receive external audio signals when UE 1600 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1604 or transmitted via communication component 1616. In some embodiments, audio component 1610 also includes a speaker for outputting audio signals.

[0265] I / O interface 1612 provides an interface between processing component 1602 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0266] Sensor assembly 1614 includes at least one sensor for providing status assessment of various aspects of UE 1600. For example, sensor assembly 1614 can detect the on / off state of UE 1600, the relative positioning of components such as the display and keypad of UE 1600, changes in position of UE 1600 or one of its components, the presence or absence of user contact with UE 1600, orientation or acceleration / deceleration of UE 1600, and temperature changes of UE 1600. Sensor assembly 1614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1614 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0267] Communication component 1616 is configured to facilitate wired or wireless communication between UE 1600 and other devices. UE 1600 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 1616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1616 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0268] In an exemplary embodiment, the UE1600 may be implemented by at least one application-specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field-programmable gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component to perform the above-described functions. Figures 1 to 3 Any of the methods shown.

[0269] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1604 including instructions, which can be executed by the processor 1620 of the UE 1600 to perform the above-described tasks. Figures 1 to 3 Any method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0270] like Figure 17 The diagram shown is a structural schematic of a network-side device provided in an embodiment of this disclosure. This network-side device may include access network equipment and core network equipment, wherein the core network equipment may include SMF, AMF, and UPF as described in any of the above embodiments. (Refer to...) Figure 17 The network-side device 1700 includes a processing component 1722, which further includes at least one processor, and memory resources represented by memory 1732 for storing instructions, such as application programs, that can be executed by the processing component 1722. The application programs stored in memory 1732 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1722 is configured to execute instructions to perform any of the methods described above applied to the access network device, SMF, and AMF.

[0271] The network-side device 1700 may also include a power supply component 1726 configured to perform power management of the network-side device 1700, a wired or wireless network interface 1750 configured to connect the network-side device 1700 to a network, and an input / output (I / O) interface 1758. The network-side device 1700 can operate on an operating system stored in memory 1732, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0272] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0273] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0274] To implement the above embodiments, this disclosure also provides a communication device. The communication device can be a network-side device, a terminal device, a chip, chip system, or processor that supports the network-side device in implementing the above methods, or a chip, chip system, or processor that supports the terminal device in implementing the above methods. This device can be used to implement the methods described in any of the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0275] The communication device may include one or more processors. The processor can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., base station, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process the data of the computer programs.

[0276] Optionally, the communication device may further include one or more memories, on which computer programs may be stored. The processor executes the computer programs to cause the communication device to perform the methods described in the above method embodiments. Optionally, the memories may also store data. The communication device and the memories may be provided separately or integrated together.

[0277] Optionally, the communication device may also include a transceiver and an antenna. A transceiver, also called a transceiver unit, transceiver, or transceiver circuit, is used to implement transmission and reception functions. A transceiver may include a receiver and a transmitter; the receiver, also called a receiver circuit, is used to implement the receiving function; the transmitter, also called a transmitter or transmitting circuit, is used to implement the transmitting function.

[0278] Optionally, the communication device may further include one or more interface circuits. The interface circuits are used to receive code instructions and transmit them to the processor. The processor executes the code instructions to cause the communication device to perform the methods described in any of the above method embodiments.

[0279] In one implementation, the processor may include a transceiver for implementing receive and transmit functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receive and transmit functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0280] In one implementation, the processor may store a computer program that runs on the processor, causing the communication device to perform the methods described in any of the above method embodiments. The computer program may be embedded in the processor; in this case, the processor may be implemented in hardware.

[0281] In one implementation, the communication device may include a circuit that can perform the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this disclosure can be implemented on ICs (Integrated Circuits), analog ICs, RFICs, mixed-signal ICs, ASICs (Application Specific Integrated Circuits), PCBs (Printed Circuit Boards), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as CMOS (Complementary Metal Oxide Semiconductor), NMOS (nMetal-Oxide-Semiconductor), PMOS (Positive Channel Metal Oxide Semiconductor), BJT (Bipolar Junction Transistor), Bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0282] The communication device described in the above embodiments can be a network-side device or a terminal device, but the scope of the communication device described in this disclosure is not limited thereto. The communication device can be a standalone device or part of a larger device. For example, the communication device can be:

[0283] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0284] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0285] (3) ASIC, such as modem;

[0286] (4) Modules that can be embedded in other devices;

[0287] (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network-side equipment, cloud equipment, artificial intelligence equipment, etc.

[0288] (6) Others, etc.

[0289] When the communication device can be a chip or a chip system, the chip may include a processor and an interface. There may be one or more processors, and multiple interfaces.

[0290] Optionally, the chip may also include memory for storing necessary computer programs and data.

[0291] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0292] This disclosure also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0293] This disclosure also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0294] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, DSL (Digital Subscriber Line)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density DVDs (Digital Video Discs)), or semiconductor media (e.g., SSDs (Solid State Disks)).

[0295] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., used in this disclosure are merely for the convenience of description and are not intended to limit the scope of the embodiments of this disclosure, nor do they indicate the order of events.

[0296] At least one of the features described in this disclosure can also be described as one or more, and multiple features can be two, three, four or more, and this disclosure does not impose any limitations. In the embodiments of this disclosure, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no sequential order or size order among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0297] The correspondences shown in the tables of this disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values; this disclosure is not limiting. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, the correspondences shown in some rows of the tables in this disclosure may not be configured. Furthermore, appropriate modifications and adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the headers of the above tables can also use other names that the communication device can understand, and the values ​​or representations of the parameters can also be other values ​​or representations that the communication device can understand. In the implementation of the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables, etc.

[0298] The predefined terms in this disclosure can be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0299] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0300] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0301] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method for establishing a shared session, characterized in that, Applied to the Session Management Function (SMF), the method includes: The access network device receives a Protocol Data Unit (PDU) session establishment request from a User Equipment (UE). The PDU session establishment request includes a multimodal service identifier, which is used to identify the same multimodal service. The multimodal service is a service that requires multiple UEs to work together to complete. The corresponding PDU session is determined based on the PDU session establishment request; The PDU session is bound to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session, and the shared N4 session is configured to enable the multiple UEs to collaboratively complete the multimodal service.

2. The method as described in claim 1, characterized in that, The step of binding the PDU session with the shared N4 session corresponding to the multimodal service identifier includes: Send the updated N4 context parameters corresponding to the shared N4 session to the User Plane Function (UPF); The updated Quality of Service (QoS) parameters are sent to the UE and the access network device.

3. The method as described in claim 2, characterized in that, Sending the updated QoS parameters to the UE and the access network device includes: The updated Quality of Service (QoS) rules information is sent to the UE. The updated Quality of Service (QoS) profile information is sent to the access network device.

4. The method as described in claim 1, characterized in that, The step of determining the corresponding PDU session based on the PDU session establishment request includes: Determine whether a PDU session has already been established for the multimodal service identifier.

5. The method according to claim 4, further comprising: If so, then establish the PDU session corresponding to the UE or join the PDU session established for the multimodal service identifier.

6. The method according to claim 4, further comprising: If not, then establish the PDU session and the corresponding N4 session.

7. The method as described in claim 1, characterized in that, The multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

8. A method for establishing a shared session, characterized in that, Applied to a UE, the method includes: The access network device sends a PDU session establishment request to the SMF, wherein the PDU session establishment request includes a multimodal service identifier, which is used to identify the same multimodal service. The multimodal service is a service that requires multiple UEs to cooperate in completing. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that the multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session. The shared N4 session is configured to enable the multiple UEs to cooperate in completing the multimodal service.

9. The method as described in claim 8, characterized in that, Also includes: The access network device receives the updated Quality of Service (QoS) rules information fed back by the SMF.

10. The method as described in claim 9, characterized in that, The multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

11. A method for establishing a shared session, characterized in that, Applied to access network equipment, the method includes: Receive a Protocol Data Unit (PDU) session establishment request from a UE, wherein the PDU session establishment request includes a multimodal service identifier, the multimodal service identifier is used to identify the same multimodal service, and the multimodal service is a service that requires multiple UEs to cooperate in completing; The PDU session establishment request is sent to the Access and Mobility Management Function (AMF), and then sent to the SMF through the AMF. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session. The shared N4 session is configured to enable the multiple UEs to collaboratively complete the multimodal service.

12. The method as described in claim 11, characterized in that, Also includes: The AMF receives updated QoS profile information from the SMF.

13. The method as described in claim 11, characterized in that, Also includes: The AMF receives updated QoS rules information from the SMF. The updated QoS rules information is sent to the UE.

14. The method as described in claim 11, characterized in that, The multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

15. A method for establishing a shared session, characterized in that, Applied to AMF, the method includes: The access network device receives a PDU session establishment request from the UE, wherein the PDU session establishment request includes a multimodal service identifier, the multimodal service identifier is used to identify the same multimodal service, and the multimodal service is a service that requires multiple UEs to cooperate to complete. The target SMF is determined based on the multimodal service identifier; The PDU session establishment request is sent to the target SMF. The PDU session establishment request is used by the target SMF to determine the corresponding PDU session and bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session. The shared N4 session is configured to enable the multiple UEs to collaboratively complete the multimodal service.

16. The method as described in claim 15, characterized in that, The step of determining the target SMF based on the multimodal service identifier includes: The SMF responsible for multimodal services is designated as the target SMF. Alternatively, the SMF to which the multiple PDU sessions corresponding to the multimodal service identifier belong can be used as the target SMF.

17. The method as described in claim 15, characterized in that, Also includes: The updated QoS profile information and updated QoS rules information are received from the target SMF and forwarded to the access network device.

18. The method as described in claim 15, characterized in that, The multimodal service identifier includes one or more of the following: task identifier, shared session identifier, and group identifier.

19. A shared session establishment apparatus, characterized in that, Applied to SMF, the device includes: The transceiver unit is used to receive a PDU session establishment request from a UE through an access network device. The PDU session establishment request includes a multimodal service identifier, which is used to identify the same multimodal service. The multimodal service is a service that requires multiple UEs to cooperate in completing. The processing unit is configured to determine the corresponding PDU session based on the PDU session establishment request, and to bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session, wherein the shared N4 session is configured to enable the multiple UEs to collaboratively complete the multimodal service.

20. A shared session establishment apparatus, characterized in that, Applied to a UE, the device includes: The transceiver unit is used to send a PDU session establishment request to the SMF through the access network equipment. The PDU session establishment request includes a multimodal service identifier, which is used to identify the same multimodal service. The multimodal service is a service that requires multiple UEs to cooperate in completing. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that the multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session. The shared N4 session is configured to enable the multiple UEs to cooperate in completing the multimodal service.

21. A shared session establishment apparatus, characterized in that, Applied to access network equipment, the device includes: The transceiver unit is used to receive a PDU session establishment request from a UE, wherein the PDU session establishment request includes a multimodal service identifier, the multimodal service identifier is used to identify the same multimodal service, and the multimodal service is a service that requires multiple UEs to cooperate to complete. The transceiver unit is further configured to send the PDU session establishment request to the Access and Mobility Management Function (AMF), and send the PDU session establishment request to the SMF through the AMF. The SMF binds the PDU session corresponding to the PDU session establishment request to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session. The shared N4 session is configured to enable the multiple UEs to collaboratively complete the multimodal service.

22. A shared session establishment apparatus, characterized in that, Applied to AMF, the device includes: The transceiver unit is used to receive a PDU session establishment request from a UE through an access network device. The PDU session establishment request includes a multimodal service identifier, which is used to identify the same multimodal service. The multimodal service is a service that requires multiple UEs to cooperate in completing. Processing unit, configured to determine target SMF based on the multimodal service identifier; The transceiver unit is further configured to send the PDU session establishment request to the target SMF. The PDU session establishment request is used by the target SMF to determine the corresponding PDU session and to bind the PDU session to the shared N4 session corresponding to the multimodal service identifier, so that multiple PDU sessions corresponding to the multimodal service identifier share the shared N4 session. The shared N4 session is configured to enable the multiple UEs to collaboratively complete the multimodal service.

23. A communication device, wherein, include: transceiver; Memory; The processor, connected to the transceiver and the memory respectively, is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and is capable of implementing the shared session establishment method according to any one of claims 1 to 7, or the shared session establishment method according to any one of claims 8 to 10, or the shared session establishment method according to any one of claims 11 to 14, or the shared session establishment method according to any one of claims 15 to 18.

24. A communication device, characterized in that, include: Processor and interface circuitry; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform the shared session establishment method as described in any one of claims 1 to 7, or the shared session establishment method as described in any one of claims 8 to 10, or the shared session establishment method as described in any one of claims 11 to 14, or the shared session establishment method as described in any one of claims 15 to 18.

25. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; after being executed by a processor, the computer-executable instructions can implement the shared session establishment method according to any one of claims 1 to 7, or the shared session establishment method according to any one of claims 8 to 10, or the shared session establishment method according to any one of claims 11 to 14, or the shared session establishment method according to any one of claims 15 to 18.

Images