Data transmission method and apparatus, and device, system, storage medium and program product

Abstract

The present disclosure relates to a data transmission method and apparatus, and a device, a system, a storage medium and a program product. The method comprises: a terminal device accessing an SBI message bus, wherein the terminal device is used for providing a service and / or using the service by means of the SBI message bus; and the terminal device transmitting, on the basis of a radio bearer, service data when the terminal device provides the service and / or uses the service by means of the SBI message bus, and an access network device transmitting the service data of the terminal device by means of the SBI message bus. In the embodiments of the present disclosure, a terminal device provides or uses a service by means of an SBI message bus, such that the data transmission delay can be reduced, and the consumption of the network bandwidth and the requirements for the processing capability of a network node can be lowered.

Description

Data transmission methods, apparatus, equipment, systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a data transmission method, apparatus, device, system, storage medium, and program product. Background Technology

[0002] In 5G, a Service Based Architecture (SBA) is introduced into the core network. In this architecture, Network Functions (NFs) can implement system functions by providing services to other authorized network functions. A Service Based Interface (SBI) represents a set of services provided or exposed by a given network function.

[0003] Summary of the Invention

[0004] This disclosure provides a data transmission method, apparatus, device, system, storage medium, and program product for transmitting service data of terminal devices based on wireless bearers. This enables the terminal devices to provide services to core network elements / functions, other terminals, base stations, etc., and to use the services provided by core network elements / functions, other terminals, base stations, etc., while ensuring the transmission efficiency of service data and reducing network bandwidth consumption.

[0005] According to a first aspect of the present disclosure, a data transmission method is proposed, which is executed by a terminal device, wherein the terminal device accesses an SBI message bus and provides and / or uses services through the SBI message bus.

[0006] The data transmission method includes: based on a wireless bearer, transmitting business data when terminal devices provide services and / or use services through the SBI message bus.

[0007] In this embodiment of the disclosure, the terminal device transmits service data based on wireless bearer, which enables the terminal device to provide services to core network elements / functions, other terminals, base stations, etc. The terminal device can also use the services provided by core network elements / functions, other terminals, base stations, etc., while ensuring the transmission efficiency of service data and reducing network bandwidth consumption.

[0008] According to a second aspect of the present disclosure, a data transmission method is provided, which is executed by an access network device. The data transmission method includes: transmitting service data of a terminal device through an SBI message bus.

[0009] Among them, business data is generated when terminal devices provide services and / or use services through the SBI message bus, and terminal devices access the SBI message bus.

[0010] In this embodiment of the disclosure, the access network device transmits the service data of the terminal device through the SBI message bus, which enables the terminal device to provide services to core network elements / functions, other terminals, base stations, etc., and the terminal device can also use the services provided by core network elements / functions, other terminals, base stations, etc.

[0011] According to a third aspect of the embodiments of this disclosure, a data transmission method is provided, comprising:

[0012] The terminal device, based on the radio bearer, sends service data to the access network device when the terminal device provides services and / or uses services through the SBI message bus;

[0013] Access network equipment transmits service data via the SBI message bus;

[0014] Among them, the terminal equipment is connected to the SBI message bus.

[0015] In this embodiment of the disclosure, by transmitting service data based on wireless bearer and SBI message bus, the terminal device can provide services to core network elements / functions, other terminals, base stations, etc., and the terminal device can also use the services provided by core network elements / functions, other terminals, base stations, etc., while ensuring the transmission efficiency of service data and reducing network bandwidth consumption.

[0016] According to a fourth aspect of the present disclosure, a data transmission apparatus is provided, wherein a terminal device in which the data transmission apparatus is located accesses a Service Interface Block (SBI) message bus, and the terminal device provides services and / or uses services through the SBI message bus.

[0017] The data transmission device includes:

[0018] The transceiver module is used to transmit business data when terminal devices provide services and / or use services via the SBI message bus, based on a wireless bearer.

[0019] According to a fifth aspect of the present disclosure, a data transmission apparatus is provided, the data transmission apparatus comprising: a transceiver module, configured to transmit service data of a terminal device via an SBI message bus;

[0020] Among them, business data is generated when terminal devices provide services and / or use services through the SBI message bus, and terminal devices access the SBI message bus.

[0021] According to a sixth aspect of the present disclosure, a terminal device is provided, the terminal device comprising: one or more processors;

[0022] The terminal device is used to execute the data transmission method as described in any of the first aspects.

[0023] According to a seventh aspect of the present disclosure, an access network device is provided, the access network device comprising: one or more processors;

[0024] The access network device is used to perform the data transmission method as described in any of the second aspects.

[0025] According to an eighth aspect of the present disclosure, a data transmission system is provided, comprising: a terminal device and an access network device;

[0026] The terminal device is configured to implement the data transmission method as described in any of the first aspects; the access network device is configured to implement the data transmission method as described in any of the second aspects.

[0027] According to a ninth aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, implement a data transmission method as described in either the first or second aspect.

[0028] According to a tenth aspect of the present disclosure, a program product is provided, the program product including a program and / or instructions, which, when executed by a communication device, implement a data transmission method as described in either the first aspect or the second aspect. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0030] Figure 1a is an exemplary architecture diagram of a data transmission system according to an embodiment of this disclosure.

[0031] Figure 1b is an exemplary schematic diagram of signaling transmission according to an embodiment of this disclosure.

[0032] Figure 1c is an exemplary schematic diagram of the SBI protocol stack according to an embodiment of this disclosure.

[0033] Figure 1d is an exemplary schematic diagram of a service-oriented architecture involved in an embodiment of this disclosure.

[0034] Figure 2a is an exemplary interactive schematic diagram of a data transmission method provided according to an embodiment of the present disclosure.

[0035] Figure 2b is an exemplary schematic diagram of an integrated architecture provided according to an embodiment of the present disclosure.

[0036] Figure 2c is an exemplary schematic diagram of a CU-DU separation architecture provided according to an embodiment of the present disclosure.

[0037] Figure 2d is an exemplary schematic diagram of a CU-DU separation architecture provided according to an embodiment of the present disclosure.

[0038] Figure 2e is an exemplary schematic diagram of a CU-DU separated and CP-UP separated architecture provided according to an embodiment of the present disclosure.

[0039] Figure 2f is an exemplary schematic diagram of a CU-DU separated and CP-UP separated architecture provided according to an embodiment of the present disclosure.

[0040] Figure 2g is an exemplary schematic diagram of the protocol stack of a terminal device provided according to an embodiment of the present disclosure.

[0041] Figure 2h is an exemplary schematic diagram of the protocol stack of a terminal device provided according to an embodiment of the present disclosure.

[0042] Figure 3 is an exemplary flowchart of a data transmission method provided according to an embodiment of the present disclosure.

[0043] Figure 4a is an exemplary flowchart of a data transmission method provided according to an embodiment of the present disclosure.

[0044] Figure 4b is an exemplary flowchart of a data transmission method provided according to an embodiment of the present disclosure.

[0045] Figure 5 is an exemplary interactive schematic diagram of a data transmission method provided according to an embodiment of the present disclosure.

[0046] Figure 6a is an exemplary structural diagram of a data transmission apparatus provided according to an embodiment of the present disclosure.

[0047] Figure 6b is an exemplary structural diagram of a data transmission apparatus provided according to an embodiment of the present disclosure.

[0048] Figure 7a is an exemplary structural diagram of a communication device provided according to an embodiment of the present disclosure.

[0049] Figure 7b is an exemplary structural diagram of a chip provided according to an embodiment of the present disclosure. Detailed Implementation

[0050] This disclosure provides a data transmission method, apparatus, device, system, storage medium, and program product for transmitting service data of a terminal device via wireless bearer. This enables the terminal device to provide services to core network elements / functions, other terminals, base stations, etc., and also allows the terminal device to use the services provided by core network elements / functions, other terminals, base stations, etc., while improving the transmission efficiency of service data and reducing network bandwidth consumption.

[0051] In a first aspect, embodiments of this disclosure propose a data transmission method, which is executed by a terminal device. The terminal device accesses the SBI message bus and provides and / or uses services through the SBI message bus.

[0052] The method includes: based on a wireless bearer, transmitting service data when terminal devices provide services and / or use services through the SBI message bus.

[0053] In this embodiment of the disclosure, based on wireless bearer transmission of service data, terminal devices can provide services to core network elements / functions, other terminals, base stations, etc., and terminal devices can also use the services provided by core network elements / functions, other terminals, base stations, etc., while ensuring the transmission efficiency of service data and reducing network bandwidth consumption.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, the radio bearer is a service bearer (SBB).

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the security key of the radio bearer is different from the security keys of the data radio bearer (DRB) and the signaling radio bearer (SRB), and the security key of the radio bearer includes an algorithm type distinguisher.

[0056] In this embodiment of the disclosure, assigning an independent security key to each wireless bearer ensures isolation between data streams in each wireless bearer, prevents unauthorized access, and enhances communication security and privacy. Furthermore, the security key contains an algorithm type distinguisher, enabling network and terminal devices to dynamically select and negotiate suitable algorithms to ensure compatibility and optimal performance. This ensures both flexibility and security, thereby better adapting to constantly changing technological and security environments.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the SBB is mapped to a dedicated service channel DTCH or a dedicated logical channel corresponding to the SBB; if the SBB is mapped to a dedicated logical channel, the dedicated logical channel is mapped to an uplink shared channel UL SCH or a downlink shared channel DL SCH.

[0058] In this embodiment of the disclosure, the mapping mechanism provided by this embodiment can optimize resource utilization, improve flexibility and throughput, reduce latency, and enhance service quality.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, the SBB is not associated with a Protocol Data Unit (PDU) session.

[0060] In this embodiment of the disclosure, decoupling the radio bearer from the PDU session can provide greater flexibility, making the network architecture more adaptable to different service requirements and network conditions. Furthermore, the radio bearer and the PDU session can be managed and optimized separately, which helps to improve resource utilization efficiency and network performance, enabling the network to better adapt to ever-changing technology and service needs.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the SBB is associated with a PDU session, and the SBB corresponding to different services is associated with different PDU sessions, and the PDU session is not associated with the data network.

[0062] In this embodiment of the disclosure, by associating radio bearers with PDU sessions, the network can allocate and manage radio resources more precisely, so that resource allocation can directly reflect the needs of a specific session. This helps to achieve more refined resource management, consistent quality of service, simplified network operation, and enhanced security and reliability.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, based on a wireless bearer, the transmission terminal device provides and / or uses service data when providing services through the SBI message bus, including:

[0064] Service data is sent to the access network equipment via a radio bearer, and the access network equipment is used to send service data via the SBI message bus.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, the access network device includes a distributed unit (DU) and a centralized unit (CU), wherein the DU is used to forward service data obtained from the radio bearer to the CU, and the CU is used to send service data via the SBI message bus.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the access network device includes a distributed unit (DU), which is used to acquire service data from the radio bearer and transmit the service data via the SBI message bus.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the access network device includes a distributed unit (DU) and a centralized unit-control plane (CU-CP), wherein the DU is used to forward service data obtained from the radio bearer to the CU-CP, and the CU-CP is used to send service data via the SBI message bus.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the access network device includes a distributed unit (DU) and a centralized unit-user plane (CU-UP), wherein the DU is used to forward service data obtained from the radio bearer to the CU-UP, and the CU-UP is used to send service data via the SBI message bus.

[0069] In conjunction with some embodiments of the first aspect, in some embodiments, the access network device includes a primary node MN and / or a secondary node SN; the MN is used to obtain service data from the radio bearer and send the service data through the SBI message bus; the SN is used to obtain service data from the radio bearer and send the service data through the SBI message bus.

[0070] In this embodiment of the disclosure, by providing data transmission methods for access network devices with various architectures, the data transmission method of this disclosure can be flexibly applied to access network devices with various architectures.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the services provided or used by the terminal device and the wireless bearer have at least one of the following correspondences:

[0072] One service corresponds to one wireless bearer;

[0073] One service can correspond to multiple radio bearers;

[0074] Multiple services correspond to one wireless bearer.

[0075] In this embodiment of the disclosure, when one service corresponds to one radio bearer, management accuracy can be improved, security risks between different services can be reduced, and service performance and reliability can be ensured. When one service corresponds to multiple radio bearers, the multiple radio bearers can correspond to different Quality of Service (QoS), thereby making more efficient use of radio resources and improving overall network performance. When multiple services correspond to one radio bearer, network complexity can be reduced, network resources can be used more effectively, management and configuration processes can be simplified, and operating costs can be reduced.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the data transmission method further includes:

[0077] Obtain rule configuration, which is used to determine whether the upstream service is related to the service provided or used by the terminal device.

[0078] In this embodiment of the disclosure, by obtaining the rule configuration, wireless resources can be allocated more accurately, ensuring that critical services obtain the required bandwidth and priority, while preventing unauthorized access and potential security threats, thereby improving the security and reliability of the service process.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal device, in an inactive state, transmits service data when providing and / or using services via a wireless bearer.

[0080] In this embodiment of the disclosure, the terminal device can use the wireless bearer to transmit data in an inactive state, which can improve service continuity.

[0081] Secondly, embodiments of this disclosure provide a data transmission method, which is executed by an access network device, the data transmission method comprising:

[0082] The terminal device transmits its business data through the Service-Oriented Interface (SBI) message bus; the business data is generated when the terminal device provides and / or uses services through the SBI message bus, and the terminal device accesses the SBI message bus.

[0083] In this embodiment of the disclosure, the access network device transmits the service data of the terminal device through the SBI message bus, which enables the terminal device to provide services to core network elements / functions, other terminals, base stations, etc., and to use the services provided by core network elements / functions, other terminals, base stations, etc.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, transmitting service data of the terminal device via the SBI message bus includes: sending service data received from the terminal device in the radio bearer to the SBI message bus.

[0085] In this embodiment of the disclosure, based on wireless bearer transmission of service data, terminal devices can provide services to core network elements / functions, other terminals, base stations, etc., and can also use the services provided by core network elements / functions, other terminals, base stations, etc., while ensuring the transmission efficiency of service data and reducing network bandwidth consumption.

[0086] In conjunction with some embodiments of the second aspect, in some embodiments, the access network device includes a distributed unit (DU) and a centralized unit (CU), wherein the DU is used to forward service data obtained from the radio bearer to the CU, and the CU is used to send service data via the SBI message bus.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, the access network device includes a distributed unit (DU), which is used to acquire service data from the radio bearer and transmit the service data via the SBI message bus.

[0088] In conjunction with some embodiments of the second aspect, in some embodiments, the access network device includes a distributed unit (DU) and a centralized unit-control plane (CU-CP), wherein the DU is used to forward service data obtained from the radio bearer to the CU-CP, and the CU-CP is used to send service data via the SBI message bus.

[0089] In conjunction with some embodiments of the second aspect, in some embodiments, the access network device includes a distributed unit (DU) and a centralized unit-user plane (CU-UP), wherein the DU is used to forward service data obtained from the radio bearer to the CU-UP, and the CU-UP is used to send service data via the SBI message bus.

[0090] In conjunction with some embodiments of the second aspect, in some embodiments, the access network device includes a primary node MN and / or a secondary node SN, wherein the MN is used to obtain service data from the radio bearer and send the service data through the SBI message bus; and the SN is used to obtain service data from the radio bearer and send the service data through the SBI message bus.

[0091] In this embodiment of the disclosure, by providing data transmission methods for access network devices with various architectures, the data transmission method of this disclosure can be flexibly applied to access network devices with various architectures.

[0092] In conjunction with some embodiments of the second aspect, in some embodiments, the data transmission method further includes: obtaining rule configuration, the rule configuration being used to determine whether the downlink service is related to a service provided or used by the terminal device.

[0093] In this embodiment of the disclosure, by obtaining the rule configuration, wireless resources can be allocated more accurately, ensuring that critical services obtain the required bandwidth and priority, while preventing unauthorized access and potential security threats, thereby improving the security and reliability of the service process.

[0094] In conjunction with some embodiments of the second aspect, in some embodiments, if the access network device does not support establishing a radio bearer, the established radio bearer is released.

[0095] In this embodiment of the disclosure, releasing unsupported radio bearers helps optimize resource utilization, improve network performance and stability, reduce energy consumption and operating costs, while simplifying network management and enhancing security.

[0096] Thirdly, embodiments of this disclosure provide a data transmission method, including:

[0097] The terminal device, based on the wireless bearer, sends service data to the access network device when the terminal device provides services and / or uses services through the Service-Oriented Interface (SBI) message bus.

[0098] Access network equipment transmits service data via the SBI message bus;

[0099] Among them, the terminal equipment is connected to the SBI message bus.

[0100] In this embodiment of the disclosure, based on wireless bearer transmission of service data, terminal devices can provide services to core network elements / functions, other terminals, base stations, etc., and terminal devices can also use the services provided by core network elements / functions, other terminals, base stations, etc., while ensuring the transmission efficiency of service data and reducing network bandwidth consumption.

[0101] Fourthly, this disclosure provides a data transmission device, wherein the terminal device is connected to the Service Interface Block (SBI) message bus, and the terminal device is used to provide services and / or use services through the SBI message bus.

[0102] The data transmission device includes:

[0103] The transceiver module is used to transmit business data when terminal devices provide services and / or use services via the SBI message bus, based on a wireless bearer.

[0104] Fifthly, embodiments of this disclosure provide a data transmission apparatus, the data transmission apparatus comprising:

[0105] The transceiver module is used to transmit the service data of the terminal device through the SBI message bus; the service data is generated when the terminal device provides services and / or uses services through the SBI message bus, and the terminal device accesses the SBI message bus.

[0106] Sixthly, embodiments of this disclosure provide a terminal device, including:

[0107] One or more processors;

[0108] The terminal device is used to execute the data transmission method of any one of the first aspects.

[0109] In a seventh aspect, embodiments of this disclosure provide an access network device, including:

[0110] One or more processors;

[0111] The access network device is used to execute the data transmission method of any one of the second aspects.

[0112] Eighthly, embodiments of this disclosure provide a data transmission system, including: a terminal device and an access network device;

[0113] The terminal device is configured to implement the data transmission method of any one of the first aspects; the access network device is configured to implement the data transmission method of any one of the second aspects.

[0114] The ninth aspect proposes a storage medium that stores instructions, which, when executed on a communication device, implement a data transmission method as described in either the first or second aspect.

[0115] In a tenth aspect, a program product is proposed, comprising a program and / or instructions, which, when executed by a communication device, implement a data transmission method as described in either the first or second aspect.

[0116] In the eleventh aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform a data transmission method as described in either the first or second aspect.

[0117] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the data transmission method described in either the first or second aspect.

[0118] It is understood that the aforementioned data transmission apparatus, terminal equipment, access network equipment, core network equipment, data transmission system, storage medium, program product, computer program, chip, or chip system are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0119] This disclosure provides a data transmission method, apparatus, device, system, storage medium, and program product. In some embodiments, the terms "data transmission method" and "data processing method," "communication method," etc., can be used interchangeably; the terms "data transmission apparatus" and "data processing apparatus," "communication apparatus," etc., can be used interchangeably.

[0120] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0121] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0122] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0123] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the aforementioned," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0124] In the embodiments disclosed herein, "multiple" refers to two or more.

[0125] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0126] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0127] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0128] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0129] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0130] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0131] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0132] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0133] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0134] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0135] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0136] Figure 1a is an exemplary architecture diagram of a data transmission system according to an embodiment of this disclosure. As shown in Figure 1a, the data transmission system 100 includes a terminal device 101 and an access network device 102. It should be understood that the number and form of each device shown in Figure 1a are for illustrative purposes only and do not constitute a limitation on the embodiments of this disclosure. In actual applications, it may include two or more terminal devices and two or more access network devices. The data transmission system 100 shown in Figure 1a is only illustrated by example, including one terminal device 101 and one access network device 102.

[0137] In some embodiments, terminal device 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0138] In some embodiments, the access network device 102 may be a node or device that connects a terminal device to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0139] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0140] In some embodiments, the access network device 102 may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0141] It is understood that the data transmission system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0142] The following embodiments of this disclosure can be applied to the data transmission system 100 shown in FIG1a, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1a are illustrative. The data transmission system may include all or some of the main bodies in FIG1a, or may include other main bodies outside of FIG1a. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection may be in any way, such as direct connection or indirect connection, wired connection or wireless connection.

[0143] In some embodiments, the data transmission system 100 may further include core network equipment. The core network equipment may be a single device, including a first network element, a second network element, etc., or it may be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements may be virtual or physical. Core network equipment may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0144] In some embodiments, the first network element and the second network element are, for example, one or more network elements selected from the following: Session Management Function (SMF) network element, Policy Control Function (PCF) network element, Access and Mobility Management Function (AMF) network element, Location Management Function (LMF) network element, etc.

[0145] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0146] In some 5G implementations, data transmission occurs between the terminal device and the data network (DN). Signaling is transmitted between the terminal device and the data network via the control plane (CP) or the user plane (UP).

[0147] For example, please refer to Figure 1b, which is an exemplary schematic diagram of signaling transmission involved in an embodiment of this disclosure. As shown in Figure 1b, taking LPP signaling between a terminal device and a Location Management Function (LMF) as an example, the transmission path of LPP signaling is: terminal device, access network device (e.g., gNB), Access and Mobility Management Function (AMF), LMF. When transmitting LPP signaling through the user plane, a Protocol Data Unit (PDU) session needs to be established to transmit data. The Protocol Data Unit (PDU) session refers to the association between the terminal and the data network, which provides PDU connection services. Based on the request of the terminal device, the data network can establish a PDU session. The data interaction path between the terminal device and the data network is: terminal device, access network device, User Plane Function (UPF), data network.

[0148] With the advent of the 6th Generation Mobile Communication Technology (6G) era, 6G services take on various forms. Service producers and consumers are no longer limited to the terminal device and data network, but can also be between the terminal device and core network equipment, between terminal devices, between the terminal device and access network equipment (core network equipment is such as a base station, where the base station can be a base station that communicates with the terminal device through an air interface, i.e., the terminal's serving base station, or it can be a non-serving base station), and so on.

[0149] However, for services between terminal devices and core network equipment, if existing control plane or user plane methods are still used to establish data channels, data transmission efficiency will be relatively low. For example, transmission through the control plane requires forwarding via AMF, while transmission through the user plane requires forwarding via UPF. These forwardings increase data transmission latency, consume network bandwidth, and increase the processing capacity requirements of the corresponding nodes. In addition, the protocol stacks used by terminal devices as service producers and consumers (e.g., NAS / RRC signaling used in the control plane scheme) differ from the service interfaces used by the core network equipment, which also increases the complexity of standardization and implementation.

[0150] To address the aforementioned issues, this disclosure provides a data transmission method, apparatus, device, system, storage medium, and program product. Terminal devices access a Service Based Interface (SBI) message bus, enabling them to provide services to core network elements / functions, other terminal devices, and access network devices. They can also utilize services provided by these entities through the SBI message bus. Terminal devices can transmit service data via wireless bearers to provide or use services without navigating the aforementioned control plane or user plane, thereby reducing data transmission latency, lowering network bandwidth consumption and network node processing capacity requirements, and improving data transmission efficiency.

[0151] The data transmission methods, apparatus, devices, systems, storage media, and program products provided in this disclosure will now be described in detail with reference to the accompanying drawings.

[0152] In some embodiments, a Network Function Service (NF service) is a capability provided by a Network Function Producer to other authorized Network Function Consumers (NF Service Consumers) through a service interface. A Network Function Service may support one or more Network Function Service operations. Network functions may provide different functionalities and therefore provide different Network Function Services.

[0153] In some embodiments, the SBI represents a set of services provided or exposed by a given network function, and the SBI is where NF service operations are invoked. Referring to Figure 1c, which is an exemplary schematic diagram of the protocol stack of the SBI according to an embodiment of this disclosure. In a service-oriented architecture, various network functions that provide and use network function services are connected to the SBI Message Bus. Referring, as an example, referring to Figure 1d, which is an exemplary schematic diagram of the service-oriented architecture according to an embodiment of this disclosure. As shown in Figure 1d, core network functions (e.g., AMF, SMF, PCF, etc.) are all connected to the SBI bus.

[0154] In this embodiment of the disclosure, the terminal device is also connected to the SBI message bus, and the terminal device can provide services and / or use services through the SBI message bus.

[0155] In some embodiments, the aforementioned terminal device access to the SBI message bus means that, from the perspective of Internet Protocol Address (IP), the network functions of the terminal device and the core network device are equivalent, and the IP address of the terminal device can be addressed and routed in the transport network composed of the access network device and the core network device.

[0156] In some embodiments, the services that the terminal device can provide or use include, but are not limited to, artificial intelligence (AI) services, sensing services, and services deployed on core network equipment.

[0157] In some embodiments, for AI services, terminal devices, access network devices, and core network devices can all be producers (i.e., providers of AI services) or consumers (i.e., users of AI services provided by other network nodes).

[0158] In some embodiments, for sensing services, the terminal device can collect sensing data based on wireless sensing capabilities, such as collecting 3D point cloud data, which includes spatial information and velocity information of the sensed objects. In this case, the terminal device is the producer of sensing data. Correspondingly, the terminal device can also obtain sensing data from access network devices, core network devices, and other terminal devices, in which case the terminal device is the consumer of sensing data.

[0159] In some embodiments, for services deployed on core network equipment, such as Extended Reality (XR) services, terminal devices can send data (e.g., pose information) to the core network equipment. The core network equipment then performs corresponding rendering calculations using its computing capabilities before sending the data back to the terminal device. In this case, the core network equipment is the producer of the XR service.

[0160] In some embodiments, the terminal device provided in this disclosure may be a general commercial terminal, or it may be a low-cost terminal.

[0161] Referring to Figure 2a, which is an exemplary interactive schematic diagram of a data transmission method provided according to an embodiment of the present disclosure. As shown in Figure 2a, the data transmission method includes the following steps:

[0162] Step S2101: The access network device determines whether to configure a radio bearer for the terminal device.

[0163] In some embodiments, the access network device determines whether to configure a radio bearer for the terminal device based on at least one of the following information:

[0164] Business-related information of the terminal equipment;

[0165] Auxiliary information for terminal devices.

[0166] In some embodiments, the name of business-related information is not limited, and terms such as "business-related information", "business information", "related information", "reservation information", and "service information" can be used interchangeably.

[0167] In some embodiments, the configured radio bearer is associated with a service provided or used by the terminal device through the SBI message bus. That is, the configured radio bearer is used to transmit service data for the service provided or used by the terminal device through the SBI message bus.

[0168] In some embodiments, service-related information is used to indicate whether the terminal device has any services related to providing or using services. For example, service-related information may indicate, but is not limited to, at least one of the following: the terminal device's subscription information (e.g., the terminal device only provides services, only uses services, or provides and uses services simultaneously), historical bearer establishment information, or auxiliary information of the terminal device, etc.

[0169] In some embodiments, service-related information includes, but is not limited to, at least one of the following: the application type corresponding to the service (e.g., AI service, sensing service, or service deployed on core network equipment), whether the service is related to the terminal providing or using the service, application identifier, Quality of Service (QoS) rules, QoS identifier (ID), packet filtering rules, packet filtering rule identifier, Internet Protocol (IP) address restrictions, port number restrictions, etc.

[0170] In some embodiments, service-related information is obtained from core network equipment or terminal equipment.

[0171] In some embodiments, the access network device may obtain service-related information from the core network device when or after the terminal device establishes a radio bearer, or obtain the service-related information before establishing the radio bearer.

[0172] In some embodiments, when or after a terminal device establishes a wireless RRC connection, the access network device obtains service-related information of the terminal device from the core network device. Optionally, the core network device can provide service-related information through the context of the terminal device (e.g., the core network can provide service-related information through a context response message). Alternatively, the core network device can also provide service-related information of the terminal device through separate signaling.

[0173] Optionally, the access network device stores the service-related information for a period of time after obtaining it, for use in subsequent radio bearer establishment, without needing to obtain the service-related information every time a radio bearer is established. Optionally, the access network device can maintain the service-related information continuously while the terminal device is in a connected state. After the access network device releases the terminal device into an idle state, it can delete the information or continue to store it for a period of time. If the terminal device enters an inactive state, the access network device can continue to store the service-related information.

[0174] In some embodiments, the core network device can update service-related information in real time and send the updated service-related information to the access network device in real time.

[0175] In some embodiments, the core network equipment mentioned above includes, but is not limited to, one or more network elements such as AMF, PCF, SMF, and UPF.

[0176] In some embodiments, the name of the auxiliary information is not limited, and it may be, for example, "capability information," "configuration information," etc.

[0177] In some embodiments, the aforementioned auxiliary information is obtained from a terminal device or a core network device.

[0178] In some embodiments, auxiliary information is used to indicate whether the terminal device has any services related to providing or using services. Here, "whether or not" can be understood as whether there are currently any services related to providing or using services on the terminal device, or whether there may be services related to providing or using services on the terminal device in the future, or whether the user is interested in services related to providing or using services on the terminal device.

[0179] In some embodiments, the terminal device may report the aforementioned auxiliary information via radio signaling. This radio signaling includes, but is not limited to, RRC messages or Non-Access Stratum (NAS) signaling. Optionally, when the terminal device reports the aforementioned auxiliary information via radio signaling, the access network device may store the auxiliary information in the core network device when releasing the context of the terminal device.

[0180] In some embodiments, the terms "radio" and "wireless" can be used interchangeably; the terms "radio access network (RAN)," "access network (AN)," and "RAN-based" can be used interchangeably.

[0181] In step S2102, when the access network device determines that a radio bearer is configured for the terminal device, it sends configuration information to the terminal device.

[0182] In some embodiments, configuration information is used to establish a wireless bearer.

[0183] In some embodiments, configuration information is used by the terminal device to determine which service data can be mapped to the radio bearer.

[0184] In some embodiments, the configuration information includes, but is not limited to, at least one of the following: the application type, application identifier, packet filtering rules, QoS ID, etc., corresponding to the service data that can use the radio bearer. Packet filtering rules may include, for example, IP address restrictions, port number restrictions, etc.

[0185] In some embodiments, after receiving configuration information, the terminal device establishes a radio bearer based on the configuration information.

[0186] In some embodiments, the names of configuration information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "indication", "instruction", "command", "channel", and "parameter" can be used interchangeably.

[0187] Step S2103: The terminal device establishes a wireless bearer based on the configuration information.

[0188] In some embodiments, after receiving configuration information, the terminal device can send a request message to the network to obtain the radio resources corresponding to the radio bearer. Accordingly, the network can allocate radio resources and configuration parameters to the terminal device based on the terminal device's request. Further, the terminal device configures itself according to the allocated radio resources and configuration parameters to establish the radio bearer. Optionally, radio resources include, but are not limited to, frequency resources, time slots, etc., and configuration parameters include, for example, power control parameters.

[0189] In some embodiments, the radio bearer is a dedicated radio bearer. The dedicated radio bearer is used to transmit service data for a specific service. Optionally, when the access network device determines that the terminal device has not yet configured a dedicated radio bearer, it determines to establish a dedicated radio bearer for the terminal device.

[0190] In some embodiments, the radio bearer is a default radio bearer. The default radio bearer can be used to transmit service data related to the terminal providing or using the service. Optionally, when the access network device determines that the terminal device has not yet configured a dedicated radio bearer or a default radio bearer, it determines to establish a default radio bearer for the terminal device.

[0191] In some embodiments, a dedicated radio bearer has a higher priority than a default radio bearer. That is, if the terminal device is configured with both a dedicated radio bearer and a default radio bearer, and service data can be mapped to both, the dedicated radio bearer is used to transmit the service data. For example, when transmitting service data for a specific service that can be mapped to a dedicated radio bearer, the service data is transmitted via the dedicated radio bearer; when transmitting service data for a specific service that cannot be mapped to a dedicated radio bearer, the service data is transmitted via the default radio bearer.

[0192] In some embodiments, the wireless bearer includes an uplink data channel and / or a downlink data channel. The uplink data channel is used to transmit uplink data, and the downlink data channel is used to transmit downlink data.

[0193] In some embodiments, when a terminal device enters an inactive state, it can maintain the currently established radio bearer. If the terminal device supports data transmission in the inactive state, it can use the radio bearer to transmit service data in the inactive state.

[0194] Step S2104: The terminal device obtains the rule configuration.

[0195] In some embodiments, for uplink services, the terminal device may pre-configure a set of rules to determine whether the uplink service is related to the service provided or used by the terminal device. These rules can be configured by core network equipment, including but not limited to AMF network elements, PCF network elements, or SMF network elements.

[0196] In some embodiments, rule configurations are used to identify business data related to uplink services provided or used by the terminal device.

[0197] In some embodiments, rule configuration includes, but is not limited to, service identifiers (e.g., identifiers used to identify AI services, sensing services, or services deployed on core network devices) related to services provided or used by the terminal device, Quality of Service (QoS) parameters (e.g., QoS rules, QoS identifiers (ID)), packet information (e.g., packet filtering rules, packet filtering rule identifiers), protocol type, port number, Internet Protocol (IP) address, etc.

[0198] Step S2105: Access network devices obtain rule configurations.

[0199] In some embodiments, rule configurations are used to identify service data related to downlink services provided or used by the terminal device.

[0200] In some embodiments, for downlink services, the access network device may pre-configure a set of rules to determine whether the downlink service is related to a service provided or used by the terminal device. These rules can be configured by Operations, Administration, and Maintenance (OAM) devices or core network devices. Core network devices include, but are not limited to, AMF network elements, PCF network elements, or SMF network elements.

[0201] In some embodiments, rule configuration includes, but is not limited to, service identifiers (e.g., identifiers used to identify AI services, sensing services, or services deployed on core network devices) related to services provided or used by the terminal device, QoS parameters (e.g., QoS rules, QoS IDs), packet information (e.g., packet filtering rules, packet filtering rule identifiers), protocol types, port numbers, IP addresses, etc.

[0202] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0203] Step S2106: The terminal device determines whether the uplink service is related to the service provided or used by the terminal device according to the rule configuration.

[0204] In some embodiments, when a terminal device sends uplink service data, it determines whether the uplink service is related to a service provided or used by the terminal device based on rule configuration. For example, the terminal device matches the uplink service data with the rule configuration, and determines whether the uplink service is related to a service provided or used by the terminal device by checking specific fields of the service data (such as IP address, port number, protocol type, etc.). Optionally, if the uplink service matches the rule configuration of the terminal device, it is determined that the uplink service is related to a service provided or used by the terminal device.

[0205] In step S2107, if the terminal device determines that the uplink service is related to the service provided or used by the terminal device, it sends the service data of the uplink service to the access network device based on the radio bearer.

[0206] In some embodiments, if the uplink service is related to a service provided or used by the terminal device, the service data of the uplink service is sent to the access network device based on a radio bearer; if the uplink service is not related to a service provided or used by the terminal device, the service data is sent to the access network device through other radio bearers that are not related to a service provided or used by the terminal device.

[0207] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably; the terms "downlink", "downlink", and "physical downlink" can be used interchangeably.

[0208] In some embodiments, the radio bearer may be at least one of a data radio bearer (DRB) and a signaling radio bearer (SRB).

[0209] In some embodiments, the radio bearer may be a novel radio bearer other than DRB and SRB. Optionally, the novel service bearer may be a Service Based Bearer (SBB).

[0210] In some embodiments, services related to the terminal device providing and / or using services are mapped to the novel radio bearer, i.e., the novel radio bearer transmits service data when the terminal device provides and / or uses services.

[0211] In some embodiments, services that are not related to the services provided and / or used by the terminal device are mapped to the DRB or SRB, that is, the DRB or SRB transmits service data for services other than those provided and / or used by the terminal device.

[0212] In some embodiments, the security key for the novel radio bearer is different from the security keys for DRB and SRB.

[0213] In some embodiments, a radio bearer corresponds to a Packet Data Convergence Protocol (PDCP) entity. For example, an SRB has a corresponding PDCP entity, a DRB has a corresponding PDCP entity, and an SBB has a corresponding PDCP entity. A PDCP entity consists of a transmitting PDCP entity and a receiving PDCP entity. The transmitting PDCP entity has ciphering and integrity protection functions. The receiving PDCP entity has deciphering and integrity verification functions.

[0214] Optionally, a security key K is used for encryption and decryption of RRC signaling. RRCenc For integrity protection and verification of RRC signaling, a security key K is used. RRCint Security key K is used for encrypting and decrypting user data. UPenc Security key K is used for the integrity protection and verification of user data. UPint These four security keys are all derived from the master key K. gNB It generates the corresponding algorithm type distinguisher.

[0215] In some embodiments, the security key for the wireless bearer includes an algorithm type distinguisher. Optionally, the security key for the wireless bearer includes an algorithm type distinguisher for integrity protection and verification of the wireless bearer, and / or an algorithm type distinguisher for encryption and decryption of the wireless bearer. For example, the algorithm type distinguisher for integrity protection and verification of the wireless bearer is N-wirelessbearer-enc-alg, with a value of 0x07; the algorithm type distinguisher for encryption and decryption of the wireless bearer is N-wirelessbearer-int-alg, with a value of 0x08.

[0216] In some embodiments, the novel radio bearer is mapped to a Dedicated Traffic Channel (DTCH) logical channel or a dedicated logical channel corresponding to the novel radio bearer. Optionally, if the novel radio bearer is mapped to a dedicated logical channel corresponding to the novel radio bearer, the dedicated logical channel is mapped to an Uplink Shared Channel (UL-SCH) or a Downlink Shared Channel (DL-SCH).

[0217] In some embodiments, the novel radio bearer and DRB / SRB have the same logical channel priority range. The logical channel priority is used to determine data transmission priority. The logical channel priority is typically represented by an integer value, ranging from, for example, 1 to 16, where 1 represents the highest priority and 16 represents the lowest priority. These priorities are used for scheduling and resource allocation to ensure that different types of data streams (such as voice, video, and general data) are appropriately processed according to their quality of service requirements.

[0218] In some embodiments, the novel radio bearer is not associated with a Protocol Data Unit (PDU) session.

[0219] In some embodiments, a radio bearer is associated with a PDU session, and a PDU session can be associated with one or more radio bearers. The PDU session is an extended PDU session that is not associated with a DN, and the PDU's data does not need to be transmitted via a UPF.

[0220] In some embodiments, when a radio bearer is associated with a PDU session, novel radio bearers corresponding to different services are associated with different Protocol Data Unit (PDU) sessions. For example, a radio bearer corresponding to an AI service is associated with one PDU session, and a radio bearer corresponding to a sensing service is associated with another PDU session.

[0221] In some embodiments, when a terminal device establishes a radio bearer based on configuration information, if the radio bearer is a DRB, the configuration information used to establish the DRB does not carry the Evolved Packet System Bearer ID; if the radio bearer is a DRB and the DRB is not associated with a PDU session, the configuration information used to establish the DRB does not carry the PDU session identifier.

[0222] In some embodiments, the services provided or used by the terminal device and the wireless bearer have at least one of the following correspondences:

[0223] One service corresponds to one wireless bearer;

[0224] One service can correspond to multiple radio bearers;

[0225] Multiple services correspond to one wireless bearer.

[0226] In other words, if a terminal device provides or uses multiple services, these services can be mapped to the same one or more radio bearers, or they can be mapped to some of the same radio bearers, or they can be mapped to different one or more radio bearers. Furthermore, control (signaling) and data for the same service can be transmitted in the same radio bearer or through different radio bearers.

[0227] In step S2108, the access network device sends the service data in the radio bearer received from the terminal device to the SBI message bus.

[0228] This business data refers to the business data corresponding to the upstream business.

[0229] In some embodiments, the access network device is a base station. The base station is a single-unit architecture (CU-DU not separated). In this embodiment, the base station is used to send service data from the radio bearer received from the terminal device to the SBI message bus.

[0230] Please refer to Figure 2b, which is an exemplary schematic diagram of an integrated architecture provided according to an embodiment of this disclosure. As shown in Figure 2b, for a base station (e.g., a gNB) in an integrated architecture, the processing methods for service data in different types of radio bearers vary. Specifically, taking the new radio bearer SBB as an example, for service data in the SBB, the base station sends the service data (or "Internet Protocol (IP) data packets") obtained from the SBB to the Network Function (NF) through the SBI message bus. For service data in the DRB, the base station forwards the data obtained from the DRB to the UPF, and then the UPF sends the data to the DN; for service data in the SRB, the base station processes the SRB itself. If the SRB contains Non-Access Stratum (NAS) information, the base station forwards the service data in the SRB to the AMF.

[0231] In some embodiments, the access network device is a CU-DU separated architecture.

[0232] An access network device (e.g., a gNB) can consist of one gNB Central Unit (gNB-CU) and one or more gNB Distributed Units (gNB-DUs). The gNB-CU and gNB-DU are connected via an F1 interface. The gNB-CU is a logical node that carries the Radio Resource Control (RRC) layer, Service Data Adaptation Protocol (SDAP) layer, and PDCP layer in the gNB. The gNB-DU is a logical node that carries the Radio Link Control (RLC) layer, Media Access Control (MAC) layer, and Physical Layer (PHY) layer in the gNB; its operation is controlled by the gNB-CU. One gNB-DU supports one or more cells.

[0233] In some embodiments, the processing methods for service data in different types of radio bearers differ for access network devices with a CU-DU separation architecture. In one embodiment, the access network device includes a Distributed Unit (DU), which can obtain service data from the radio bearer and send the service data via the SBI message bus. For example, please refer to Figure 2c, which is an exemplary schematic diagram of a CU-DU separation architecture provided according to an embodiment of this disclosure. As shown in Figure 2c, taking the new radio bearer SBB as an example, for service data in the SBB, if the gNB-DU can obtain IP data packets from the SBB, the gNB-DU sends the IP data packets to the NF via the SBI message bus. The gNB-DU has the capability to process the PDCP layer.

[0234] In another implementation, the access network equipment adopts a CU-DU separated architecture. The access network equipment includes a gNB-DU and a gNB-CU, where the DU forwards service data obtained from the radio bearer to the CU, and the CU sends service data via the SBI message bus.

[0235] Specifically, please refer to Figure 2d, which is an exemplary schematic diagram of the CU-DU separation architecture provided according to an embodiment of this disclosure. As shown in Figure 2c, taking the new radio bearer as SBB as an example, for service data in SBB, gNB-DU will send the data packets received from the terminal device in SBB to gNB-CU, and gNB-CU will send the IP data packets in the data packets to NF through the SBI message bus.

[0236] It should be noted that in Figures 2c and 2d above, the peer communication entity of the wireless bearer is a network function (NF), or it can be other terminals or access network equipment (such as other gNBs), etc., and this disclosure does not limit it. For DRB, the gNB-CU forwards the data in the DRB to the UPF, and then the UPF sends the data to the DN network; for SRB, the gNB-CU can process the SRB itself. If the SRB contains NAS information, the base station forwards the SRB to the AMF.

[0237] In some embodiments, the access network device is a CU-DU separated architecture (wherein, the CP-UP is not separated). The access network device includes a DU and a Centralized Unit-Control Plane (CU-CP). The DU is used to forward service data obtained from the radio bearer to the CU-CP, and the CU-CP is used to send service data via the SBI message bus.

[0238] In some embodiments, the access network equipment adopts a CU-DU separated architecture (wherein, the CU-User Plane is separated). The access network equipment includes a DU and a Centralized Unit-User Plane (CU-UP). The gNB-CU-UP is a logical node that carries the user plane functions of the PDCP and SDAP layers in the gNB-CU. The gNB-CU-UP terminates the E1 interface connected to the gNB-CU-CP and the F1-U interface connected to the gNB-DU. Optionally, in this architecture, the DU is used to forward service data obtained from the radio bearer to the CU-UP, and the CU-UP is used to send service data via the SBI message bus.

[0239] In some embodiments, the processing methods for service data in different types of radio bearers are different.

[0240] In the first example, please refer to Figure 2e, which is an exemplary schematic diagram of a CU-DU separated and CP-UP separated architecture provided according to an embodiment of the present disclosure. As shown in Figure 2e, taking the new radio bearer as SBB as an example, for service data in SBB, gNB-DU sends the data packets received from the terminal device in SBB to gNB-CU-CP, and gNB-CU-CP sends the IP data packets in the data packets to NF through the SBI message bus.

[0241] In the second example, please refer to Figure 2f, which is an exemplary schematic diagram of a CU-DU separation and CP-UP separation architecture provided according to embodiments of the present disclosure. As shown in Figure 2f, taking the new radio bearer SBB as an example, for service data in the SBB, the gNB-DU sends the data packets received from the terminal in the SBB to the gNB-CU-UP, and the gNB-CU-UP sends the IP data packets in the data packets to the NF through the SBI message bus.

[0242] In the third example, gNB-DU sends IP packets to NF via the SBI bus.

[0243] It should be noted that in Figures 2e and 2f above, the peer communication entity of the novel radio bearer (e.g., SBB) can be an NF or other terminal, access network equipment (e.g., other gNB), etc., and this disclosure does not limit it.

[0244] It should be noted that the processing method for data in DRB and SRB is not limited in this embodiment. For example, as shown in Figures 2e and 2f, for data in DRB, gNB-CU-UP can forward the data in DRB to UPF, and then UPF sends the data to DN network; for data in SRB, gNB-CU-CP can process the data in SRB itself, and if the SRB contains NAS information, it forwards the SRB to AMF.

[0245] In some embodiments, in Multi-Radio Dual Connectivity (MR-DC or DC for short), the access network equipment includes a master node (MN) and / or a secondary node (SN). Specifically, a terminal device with multiple receive (Rx) / transmit (Tx) capabilities can be configured to utilize resources provided by two different nodes connected via a non-ideal backhaul, one node providing New Radio (NR) access and the other providing Evolved Universal Terrestrial Radio Access (E-UTRA) or NR access. One node acts as the MN, and the other as the SN, with the MN and SN connected via a network interface, and at least the MN connected to the core network.

[0246] In the MR-DC scenario, from the perspective of terminal equipment, there are three types of bearers: Master Cell Group (MCG) bearer, Secondary Cell Group (SCG) bearer, and split bearer.

[0247] In some embodiments, the MN described above is used to acquire service data from the radio bearer and transmit the service data via the SBI message bus; the SN is used to acquire service data from the radio bearer and transmit the service data via the SBI message bus. For example, for a Master Cell Group (MCG) bearer and a separate bearer terminating at the MN, the MN is used to transmit data packets from the new radio bearer received from the terminal device to the SBI message bus. For a Secondary Cell Group (SCG) bearer and a separate bearer terminating at the SN, the SN transmits data packets from the new radio bearer received from the terminal device to the SBI message bus.

[0248] In some embodiments, the terminal device may employ an SBI protocol stack. For example, please refer to Figure 2g, which is an exemplary schematic diagram of the protocol stack of a terminal device provided according to an embodiment of this disclosure. The access network device is illustrated using a gNB with an integrated architecture. As shown in Figure 2g, the gNB sends IP packets from the novel radio bearer received from the terminal to the NF via the SBI message bus. The gNB and NF may be directly connected, or there may be one or more nodes between the gNB and the NF, such as IP routers.

[0249] It should be noted that Figure 2g uses an existing NR air interface user plane protocol stack (PDCP / RLC / MAC / PHY) as an example, but it is not intended to limit the scope of the invention. In other words, the embodiments of this disclosure are also applicable to other air interface user plane protocol stacks.

[0250] It should be noted that the Service Data Adaptation Protocol (SDAP) layer is not shown in Figure 2g; if the new radio bearer is associated with a PDU session, the protocol stack may also include the SDAP layer.

[0251] It should be noted that the peer communication entity of the novel wireless bearer can be a network function (NF) or other terminals, access network equipment (such as other gNBs), etc., and this disclosure does not limit it.

[0252] In some embodiments, the terminal device may also employ an SBI protocol stack based on Quick UDP Internet Connections (QUIC). For example, please refer to Figure 2h, which is an exemplary schematic diagram of the protocol stack of a terminal device provided according to an embodiment of this disclosure.

[0253] As shown in Figure 2h, the difference from Figure 2g is that the terminal device uses the HTTP3 / QUIC / UDP protocol stack.

[0254] Step S2109: The access network device determines, according to the rule configuration, whether the downlink service is related to the service provided or used by the terminal device.

[0255] In step S2110, when the access network device determines that the downlink service is related to the service provided or used by the terminal device, it sends the service data of the downlink service to the terminal device through the radio bearer.

[0256] In some embodiments, the service data for downlink services is obtained from the SBI message bus, or it can be obtained from a means other than the SBI message bus.

[0257] In some embodiments, when an access network device detects service data for a downlink service, it determines, based on rule configuration, whether the downlink service is related to a service provided or used by the terminal device. For example, the access network device matches the service data with the rule configuration, and determines whether the service data is related to a service provided or used by the terminal device by checking specific fields of the service data (such as IP address, port number, protocol type, etc.). Optionally, if the downlink service is related to a service provided or used by the terminal device, the service data of the downlink service is sent to the terminal device based on a radio bearer; if the downlink service is not related to a service provided or used by the terminal device, the service data is sent to the terminal device through other radio bearers unrelated to a service provided or used by the terminal device.

[0258] In some embodiments, if the access network device does not support establishing a radio bearer, the established radio bearer is released.

[0259] In some embodiments, the triggering conditions for releasing the radio bearer include, but are not limited to, the following: the terminal device requests to release the radio bearer, the QoS changes, and the terminal device becomes mobile (e.g., the terminal device switches the access network device it is connected to).

[0260] For example, when a terminal device switches to a different access network device, if the target access network device to which the terminal device is connected does not support establishing or using radio bearers to provide services to the terminal device, the target access network device releases the established radio bearers that provide or use services to the terminal device. Optionally, during a handover, the target access network device sends a signaling message (such as an RRC connection reconfiguration message) to the terminal device to instruct it to release radio bearers that it does not support. Upon receiving the signaling message, the terminal device releases the corresponding radio bearer and sends a response message (such as an RRC connection reconfiguration completion message) to the target access network device. Upon receiving the response message, the target access network device confirms the completion of the release process and updates the context information of the terminal device.

[0261] It should be noted that the bearer establishment method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2110. For example, steps S2101 to S2103 may be implemented as an independent embodiment; steps S2101 to S2104 may be implemented as an independent embodiment; a combination of steps S2101 to S2103 and step S2105 may be implemented as an independent embodiment; a combination of steps S2104 and steps S2106 to S2108 may be implemented as an independent embodiment; and a combination of steps S2105 and steps S2109 to S2110 may be implemented as an independent embodiment.

[0262] In some embodiments, steps S2104 and S2105 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0263] In some embodiments, steps S2104 and S2105 may be performed in a different order or simultaneously; steps S2106 and S2109 may be performed in a different order or simultaneously; steps S2107 and S2110 may be performed in a different order or simultaneously.

[0264] Referring to Figure 3, Figure 3 is an exemplary flowchart of a data transmission method provided according to an embodiment of this disclosure. The execution subject of the data transmission method involved in this disclosure is a terminal device. It should be understood that this data transmission method can be executed alone, or it can be executed together with any embodiment of this disclosure or possible implementations in the embodiments, or it can be executed together with any technical solution in related technologies.

[0265] In some embodiments, the terminal device accesses the SBI message bus and provides and / or uses services through the SBI message bus. As shown in Figure 3, the data transmission method includes the following steps:

[0266] Step S3101: Obtain configuration information and establish a wireless bearer based on the configuration information.

[0267] In some embodiments, the configuration information may be sent by the access network device to the device in the network.

[0268] Step S3102: Obtain rule configuration.

[0269] In some embodiments, rule configuration is used to determine whether an uplink service is related to a service provided or used by a terminal device.

[0270] In some embodiments, the optional implementations of steps S3101 to S3102 can be found in the optional implementations of steps S2103 to S2104 in FIG2a, as well as other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0271] Step S3103: When sending the service data of the uplink service, determine whether the uplink service is related to the service provided or used by the terminal device according to the rule configuration.

[0272] Step S3104: When it is determined that the uplink service is related to the service provided or used by the terminal device, the service data of the uplink service is sent to the access network device based on the radio bearer.

[0273] In some embodiments, optional implementations of steps S3103 to S3104 can be found in optional implementations of steps S2106 to S2107 in FIG2a, as well as other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0274] It should be noted that the bearer establishment method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3104. For example, steps S3103 to S3104 may be implemented as independent embodiments; step S3101 may be implemented as an independent embodiment; and steps S3101 to S3102 may be implemented as independent embodiments.

[0275] In some embodiments, step S3102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0276] Referring to Figure 4a, Figure 4a is an exemplary flowchart of a data transmission method provided according to an embodiment of this disclosure. The execution subject of the data transmission method involved in this disclosure is an access network device. It should be understood that this data transmission method can be executed alone, or it can be executed together with any embodiment of this disclosure or possible implementations in the embodiments, or it can be executed together with any technical solution in related technologies.

[0277] In some embodiments, the access network device is used to transmit service data when the terminal device provides and / or uses the service based on the data transmission method. The terminal device accesses the SBI message bus and is used to provide and / or use the service through the SBI message bus. As shown in Figure 4a, the data transmission method includes the following steps:

[0278] Step S4101: Determine whether to configure a wireless bearer for the terminal device.

[0279] Step S4102: If it is determined that a wireless bearer is configured for the terminal device, configuration information is sent to the terminal device.

[0280] In some embodiments, the optional implementations of steps S4101 to S4102 can be found in the optional implementations of steps S2101 to S2102 in FIG2a, and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0281] In some embodiments, rule configuration is used to determine whether downlink traffic is related to services provided or used by the terminal device.

[0282] Step S4103: Obtain rule configuration.

[0283] In some embodiments, optional implementations of step S4103 can be found in optional implementations of step S2105 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0284] Step S4104: Upon receiving service data from a downlink service, determine whether the downlink service is related to a service provided or used by the terminal device according to the rule configuration.

[0285] Step S4105: If it is determined that the downlink service is related to the service provided or used by the terminal device, the service data of the downlink service is sent to the terminal device through the radio bearer.

[0286] In some embodiments, the optional implementations of steps S4104 to S4105 can be found in the optional implementations of steps S2109 to S2110 in FIG2a, and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0287] It should be noted that the bearer establishment method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4105. For example, steps S4103 to S4105 may be implemented as independent embodiments; steps S4104 to S4105 may be implemented as independent embodiments; steps S4101 to S4102 may be implemented as independent embodiments; and steps S4101 to S4103 may be implemented as independent embodiments.

[0288] In some embodiments, step S4103 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0289] Referring to Figure 4b, which is an exemplary flowchart of a data transmission method provided according to an embodiment of this disclosure, the data transmission method in this embodiment is executed by an access network device. It should be understood that this data transmission method can be executed alone, or it can be executed in conjunction with any embodiment of this disclosure or any possible implementation thereof, or it can be executed in conjunction with any technical solution in related technologies.

[0290] In some embodiments, the access network device is used to transmit service data when the terminal device provides and / or uses the service based on the data transmission method. The terminal device accesses the SBI message bus and is used to provide and / or use the service through the SBI message bus.

[0291] As shown in Figure 4b, the data transmission method includes the following steps:

[0292] Step S4201: Obtain service data from the radio bearer received from the terminal device.

[0293] Step S4202: The service data received from the wireless bearer from the terminal device is sent to the SBI message bus.

[0294] In some embodiments, the service data received from the terminal device in the radio bearer is the service data of the uplink service.

[0295] In some embodiments, optional implementations of steps S4201 to S4202 can be found in the optional implementation of step S2108 in FIG2a and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0296] Referring to Figure 5, Figure 5 is an exemplary interactive schematic diagram of a data transmission method provided according to an embodiment of the present disclosure. As shown in Figure 5, the data transmission method includes the following steps:

[0297] Step S5101: The terminal device sends service data to the access network device based on the radio bearer.

[0298] In some embodiments, the business data is the business data of the upstream business, that is, the business data is upstream data.

[0299] In some embodiments, when a terminal device performs an uplink service, it can directly transmit the service data of the uplink service through a radio bearer. The terminal device can transmit the service data through a radio bearer related to the service provided or used by the terminal device, or the terminal device can transmit the service data through a radio bearer unrelated to the service provided or used by the terminal device.

[0300] [Correction 26.12.2024 based on Rule 91] In some embodiments, when a terminal device performs an uplink service, it can determine, according to rule configuration, whether the uplink service is related to the service provided or used by the terminal device. If it is related, the service data is transmitted using a radio bearer related to the service provided or used by the terminal device; if it is not related, the service data is transmitted using a radio bearer unrelated to the service provided or used by the terminal device. Specifically, in this embodiment, the optional implementation of step S5101 can be found in the optional implementations of steps S2106 to S2107 in Figure 2a, and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0301] In step S5102, the access network device transmits the service data of the terminal device through the SBI message bus.

[0302] In some embodiments, the service data is the service data corresponding to the uplink service, i.e., the service data is uplink data. Optionally, the access network device obtains the uplink data sent by the terminal device from the radio bearer and sends the uplink data to the SBI message bus. Accordingly, the network functions related to the uplink data will obtain the uplink data from the SBI message bus.

[0303] In some embodiments, the optional implementation of the access network device transmitting uplink data through the SBI message bus can also be found in the optional implementation of step S2108 in Figure 2a, and other related parts in the embodiments involved in Figure 2a, which will not be repeated here.

[0304] In some embodiments, the service data is the service data corresponding to the downlink service, that is, the service data is downlink data. Optionally, the access network device obtains the downlink data to be sent to the terminal device from the SBI message bus, and sends the obtained downlink data to the terminal device through the radio bearer.

[0305] In some embodiments, the optional implementation of the access network device transmitting downlink data through the SBI message bus can also be found in the optional implementation of steps S2109 to S2110 in Figure 2a, and other related parts in the embodiments involved in Figure 2a, which will not be repeated here.

[0306] In some embodiments, the above methods may include the methods of the embodiments described above on the terminal device side, access network device side, etc., which will not be repeated here.

[0307] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0308] This disclosure also provides embodiments of an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the first device in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by the second device in any of the above methods.

[0309] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0310] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0311] Figure 6a is an exemplary structural diagram of a data transmission apparatus provided according to an embodiment of the present disclosure. As shown in Figure 6a, the terminal device where the data transmission apparatus 6100 is located is connected to the SBI message bus, and the terminal device is used to provide services and / or use services through the SBI message bus;

[0312] The data transmission device 6100 includes:

[0313] The transceiver module 6101 is used to transmit business data when terminal devices provide services and / or use services via the SBI message bus based on a wireless bearer.

[0314] In some embodiments, the radio bearer is a service bearer (SBB).

[0315] In some embodiments, the security key of the radio bearer is different from the security keys of the data radio bearer (DRB) and the signaling radio bearer (SRB). The security key of the radio bearer includes an algorithm type distinguisher.

[0316] In some embodiments, the SBB is mapped to a dedicated service channel DTCH or a dedicated logical channel corresponding to the SBB; if the SBB is mapped to a dedicated logical channel, the dedicated logical channel is mapped to an uplink shared channel UL SCH or a downlink shared channel DL SCH.

[0317] In some embodiments, the SBB is not associated with a Protocol Data Unit (PDU) session.

[0318] In some embodiments, the SBB is associated with a PDU session, and different services have different SBBs associated with different PDU sessions. The PDU session is not associated with the data network.

[0319] In some embodiments, based on a wireless bearer, the service data transmitted by the terminal device when providing and / or using the service via the SBI message bus includes:

[0320] Service data is sent to the access network equipment via a radio bearer, and the access network equipment is used to send service data via the SBI message bus.

[0321] In some embodiments, the access network device includes a distributed unit (DU) and a centralized unit (CU), wherein the DU is used to forward service data obtained from the radio bearer to the CU, and the CU is used to send service data through the SBI message bus.

[0322] In some embodiments, the access network device includes a distributed unit (DU), which is used to acquire service data from the radio bearer and send the service data via the SBI message bus.

[0323] In some embodiments, the access network device includes a distributed unit (DU) and a centralized unit-control plane (CU-CP). The DU is used to forward service data obtained from the radio bearer to the CU-CP, and the CU-CP is used to send service data through the SBI message bus.

[0324] In some embodiments, the access network device includes a distributed unit (DU) and a centralized unit-user plane (CU-UP), wherein the DU is used to forward service data obtained from the radio bearer to the CU-UP, and the CU-UP is used to send service data via the SBI message bus.

[0325] In some embodiments, the access network device includes a primary node MN and / or a secondary node SN; the MN is used to obtain service data from the radio bearer and send the service data through the SBI message bus; the SN is used to obtain service data from the radio bearer and send the service data through the SBI message bus.

[0326] In some embodiments, the services provided or used by the terminal device and the wireless bearer have at least one of the following correspondences:

[0327] One service corresponds to one wireless bearer;

[0328] One service can correspond to multiple radio bearers;

[0329] Multiple services correspond to one wireless bearer.

[0330] In some embodiments, the data transmission device 6100 further includes a processing module 6102, configured to obtain rule configuration, wherein the rule configuration is used to determine whether the uplink service is related to the service provided or used by the terminal device.

[0331] In some embodiments, when the terminal device is inactive, it transmits service data on the part of the terminal device providing and / or using the service via a wireless bearer.

[0332] Optionally, the transceiver module 6101 described above is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal device in any of the above methods (e.g., step S2107, step S3104, step S5101, but not limited thereto), which will not be described in detail here.

[0333] Optionally, the transceiver module 6101 is used to execute at least one of the other steps executed by the terminal device in any of the above methods (e.g., steps S2103 to S2104, step S2106, steps S3101 to S3103, but not limited thereto), which will not be described in detail here.

[0334] Figure 6b is an exemplary structural schematic diagram of a data transmission apparatus provided according to an embodiment of the present disclosure. As shown in Figure 6b, the data transmission apparatus 6200 may include:

[0335] The transceiver module 6201 is used to transmit business data of terminal devices through the Service Interface Message Bus (SBI).

[0336] Among them, business data is generated when terminal devices provide services and / or use services through the SBI message bus, and terminal devices access the SBI message bus.

[0337] In some embodiments, transmitting service data of a terminal device via the SBI message bus includes sending service data received from the terminal device in the radio bearer to the SBI message bus.

[0338] In some embodiments, the access network device includes a distributed unit (DU) and a centralized unit (CU), wherein the DU is used to forward service data obtained from the radio bearer to the CU, and the CU is used to send service data through the SBI message bus.

[0339] In some embodiments, the access network device includes a distributed unit (DU), which is used to acquire service data from the radio bearer and send the service data via the SBI message bus.

[0340] In some embodiments, the access network device includes a distributed unit (DU) and a centralized unit-control plane (CU-CP). The DU is used to forward service data obtained from the radio bearer to the CU-CP, and the CU-CP is used to send service data through the SBI message bus.

[0341] In some embodiments, the access network device includes a distributed unit (DU) and a centralized unit-user plane (CU-UP), wherein the DU is used to forward service data obtained from the radio bearer to the CU-UP, and the CU-UP is used to send service data via the SBI message bus.

[0342] In some embodiments, the access network device includes a primary node MN and / or a secondary node SN. The MN is used to obtain service data from the radio bearer and send the service data through the SBI message bus; the SN is used to obtain service data from the radio bearer and send the service data through the SBI message bus.

[0343] In some embodiments, the data transmission device 6200 further includes a processing module 6202, configured to obtain rule configuration, wherein the rule configuration is used to determine whether the downlink service is related to the service provided or used by the terminal device.

[0344] In some embodiments, if the access network device does not support establishing a radio bearer, the established radio bearer is released.

[0345] Optionally, the transceiver module 6201 described above is also used to perform at least one of the communication steps such as sending and / or receiving performed by the access network device in any of the above methods (e.g., steps S2102, S2108, S2110, S4102, S4105, S4202, S5102, but not limited thereto), which will not be elaborated here;

[0346] Optionally, the processing module 6202 is also used to execute other steps performed by the access network device in any of the above methods (e.g., steps S2101, S2105, S2109, S4101, S4103 to S4104, S4201, but not limited thereto).

[0347] Figure 7a is an exemplary structural diagram of a communication device provided according to an embodiment of the present disclosure. The communication device can be any of a terminal device or an access network device, or it can be a chip, chip system, or processor, etc., that supports any of the terminal devices or access network devices in implementing any of the above methods. It can be used to implement the methods described in the above method embodiments, and for details, please refer to the description in the above method embodiments.

[0348] As shown in Figure 7a, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The communication device 7100 is used to execute any of the above methods.

[0349] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100.

[0350] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2107, S3104, S5101, S2102, S2108, S2110, S4102, S4105, S4202, S5102, but not limited thereto).

[0351] The processor 7101 executes at least one of other steps (e.g., steps S2103-S2104, step S2106, steps S3101-S3103, step S2101, step S2105, step S2109, step S4101, step S4103-S4104, step S4201, but not limited thereto).

[0352] In some embodiments, transceiver 7103 may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0353] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0354] The communication device 7100 described in the above embodiments can be any of the terminal devices or access network devices, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device can be an independent device or part of a larger device. For example, the communication device can be at least one of the following: (1) an independent integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, access network device or core network device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0355] Figure 7b is an exemplary structural diagram of a chip provided according to an embodiment of the present disclosure. For cases where the communication device can be a chip or a chip system, please refer to the structural diagram of chip 7200 shown in Figure 7b, but it is not limited thereto.

[0356] Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.

[0357] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.

[0358] In some embodiments, the interface circuit 7202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2107, S3104, S5101, S2102, S2108, S2110, S4102, S4105, S4202, S5102, but not limited thereto).

[0359] The processor 7201 executes at least one of other steps (e.g., steps S2103-S2104, step S2106, steps S3101-S3103, step S2101, step S2105, step S2109, step S4101, step S4103-S4104, step S4201, but not limited thereto).

[0360] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0361] In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memories 7203 may be located outside of chip 7200.

[0362] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0363] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0364] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the above program product is a computer program product.

[0365] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0366] 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.

[0367] 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.

[0368] The above are merely specific embodiments 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 data transmission method, characterized in that, The method is executed by a terminal device, which accesses the Service-Oriented Interface (SBI) message bus and is used to provide and / or use services through the SBI message bus. The method includes: Based on the wireless bearer, the terminal device transmits service data when providing and / or using services through the SBI message bus.

2. The method according to claim 1, characterized in that, The radio bearer is a service-oriented bearer (SBB).

3. The method according to claim 2, characterized in that, The security key of the radio bearer is different from the security keys of the data radio bearer (DRB) and the signaling radio bearer (SRB). The security key of the radio bearer includes an algorithm type distinguisher.

4. The method according to claim 2 or 3, characterized in that, The SBB is mapped to a dedicated service channel DTCH or a dedicated logical channel corresponding to the SBB; if the SBB is mapped to the dedicated logical channel, the dedicated logical channel is mapped to an uplink shared channel UL SCH or a downlink shared channel DL SCH.

5. The method according to any one of claims 2-4, characterized in that, The SBB is not associated with a Protocol Data Unit (PDU) session.

6. The method according to any one of claims 2-4, characterized in that, The SBB is associated with a PDU session, and different services have different SBBs associated with different PDU sessions. The PDU sessions are not associated with the data network.

7. The method according to any one of claims 1-6, characterized in that, The transmission of service data by the terminal device when providing and / or using services through the SBI message bus, based on the wireless bearer, includes: The service data is sent to the access network device via the radio bearer, and the access network device is used to send the service data via the SBI message bus.

8. The method according to claim 7, characterized in that, The access network device includes a distributed unit (DU) and a centralized unit (CU). The DU is used to forward the service data obtained from the radio bearer to the CU, and the CU is used to send the service data through the SBI message bus.

9. The method according to claim 7, characterized in that, The access network device includes a distributed unit (DU), which is used to obtain the service data from the radio bearer and send the service data through the SBI message bus.

10. The method according to claim 7, characterized in that, The access network device includes a distributed unit (DU) and a centralized unit-control plane (CU-CP). The DU is used to forward the service data obtained from the radio bearer to the CU-CP, and the CU-CP is used to send the service data through the SBI message bus.

11. The method according to claim 7, characterized in that, The access network device includes a distributed unit (DU) and a centralized unit-user plane (CU-UP). The DU is used to forward the service data obtained from the radio bearer to the CU-UP, and the CU-UP is used to send the service data through the SBI message bus.

12. The method according to any one of claims 7-11, characterized in that, The access network equipment includes a primary node MN and / or a secondary node SN; The MN is used to obtain the service data from the radio bearer and send the service data through the SBI message bus; The SN is used to obtain the service data from the radio bearer and send the service data through the SBI message bus.

13. The method according to any one of claims 1-12, characterized in that, The services provided or used by the terminal device and the wireless bearer have at least one of the following correspondences: One service corresponds to one wireless bearer; One service can correspond to multiple radio bearers; Multiple services correspond to one wireless bearer.

14. The method according to any one of claims 1-13, characterized in that, Also includes: Obtain rule configuration, which is used to determine whether the uplink service is related to the service provided or used by the terminal device.

15. The method according to any one of claims 1-14, characterized in that, When the terminal device is inactive, it transmits service data on the basis of providing and / or using services through the wireless bearer.

16. A data transmission method, characterized in that, The method is executed by an access network device, and the method includes: Transmitting terminal device business data via the Service-Oriented Interface (SBI) message bus; The business data is generated by the terminal device when it provides and / or uses services through the SBI message bus. The terminal device is connected to the SBI message bus.

17. The method according to claim 16, characterized in that, The transmission of service data from terminal devices via the SBI message bus includes: The service data received from the wireless bearer from the terminal device is sent to the SBI message bus.

18. The method according to claim 16 or 17, characterized in that, The access network device includes a distributed unit (DU) and a centralized unit (CU). The DU is used to forward the service data obtained from the radio bearer to the CU, and the CU is used to send the service data through the SBI message bus.

19. The method according to claim 16 or 17, characterized in that, The access network device includes a distributed unit (DU), which is used to obtain the service data from the radio bearer and send the service data through the SBI message bus.

20. The method according to claim 16 or 17, characterized in that, The access network device includes a distributed unit (DU) and a centralized unit-control plane (CU-CP). The DU is used to forward the service data obtained from the radio bearer to the CU-CP, and the CU-CP is used to send the service data through the SBI message bus.

21. The method according to claim 16 or 17, characterized in that, The access network device includes a distributed unit (DU) and a centralized unit-user plane (CU-UP). The DU is used to forward the service data obtained from the radio bearer to the CU-UP, and the CU-UP is used to send the service data through the SBI message bus.

22. The method according to any one of claims 16-21, characterized in that, The access network device includes a primary node MN and / or a secondary node SN. The MN is used to obtain the service data from the radio bearer and send the service data through the SBI message bus. The SN is used to obtain the service data from the radio bearer and send the service data through the SBI message bus.

23. The method according to any one of claims 16-22, characterized in that, Also includes: Obtain rule configuration, which is used to determine whether downlink services are related to services provided or used by the terminal device.

24. The method according to any one of claims 16-23, characterized in that, If the access network device does not support establishing a radio bearer, then the established radio bearer is released.

25. A data transmission method, characterized in that, include: The terminal device, based on the wireless bearer, sends service data to the access network device when the terminal device provides services and / or uses services through the Service-Oriented Interface (SBI) message bus. The access network device transmits the service data through the SBI message bus; The terminal device is connected to the SBI message bus.

26. A data transmission device, characterized in that, The terminal device where the data transmission device is located accesses the Service Interface (SBI) message bus, and the terminal device is used to provide services and / or use services through the SBI message bus. The data transmission device includes: The transceiver module is used to transmit service data when the terminal device provides services and / or uses services through the SBI message bus, based on the wireless bearer.

27. A data transmission device, characterized in that, include: The transceiver module is used to transmit business data from terminal devices through the Service-Oriented Interface (SBI) message bus. The business data is generated when the terminal device provides and / or uses services through the SBI message bus, and the terminal device accesses the SBI message bus.

28. A terminal device, characterized in that, include: One or more processors; The terminal device is used to execute the data transmission method according to any one of claims 1-15.

29. An access network device, characterized in that, include: One or more processors; The access network device is used to execute the data transmission method according to claims 16-24.

30. A data transmission system, characterized in that, include: Terminal equipment and access network equipment; The terminal device is configured to implement the data transmission method according to any one of claims 1-15; The access network device is configured to implement the data transmission method according to any one of claims 16-24.

31. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the data transmission method as described in any one of claims 1-15 and 16-24.

32. A program product comprising a program and / or instructions, characterized in that, When the program and / or instructions are executed by the communication device, the data transmission method as described in any one of claims 1-15 and 16-24 is implemented.

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