WO2024050838A1

WO2024050838A1 - Communication method and apparatus

Info

Publication number: WO2024050838A1
Application number: PCT/CN2022/118233
Authority: WO
Inventors: 习燕; 严学强; 赵明宇
Original assignee: 华为技术有限公司
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2024-03-14

Abstract

Embodiments of the present application provide a communication method and apparatus. According to acquired data service requirement information, a first node may select a second node for executing a data service task, and send to the second node configuration information comprising a type of a logical link, such that a logical link established by the second node according to the type of the logical link can satisfy a data service requirement. In addition, the logical link is used for transmitting data corresponding to the data service task, thus providing, for the data corresponding to the data service task, a transmission mode satisfying the data service requirement.

Description

A communication method and device

Technical field

The present application relates to the field of communication technology, and in particular, to a communication method and device.

Background technique

Data service (DS) can refer to providing data as a service product after collecting, preprocessing, and analyzing data. With the development of communication network scale, new technologies, etc., there is more and more data in the communication network, and the demand for data services is also increasing.

To this end, data in the communication network can be processed to implement data services. However, current data transmission methods cannot meet data service needs.

Contents of the invention

This application provides a communication method and device, which provides a transmission method for data corresponding to data service tasks that meets data service requirements.

In a first aspect, a communication method is provided, including: a first node obtains data service requirement information; the first node selects a second node for performing a data service task based on the data service requirement information; the first node selects a second node for performing a data service task based on the data service requirement information; Send a first message to the second node; the first message includes first configuration information, the first configuration information includes the type of the first logical link, and the type of the first logical link is a bidirectional logical link, a unidirectional downlink, or In the unidirectional uplink, the first logical link is a logical link between the first node and the second node, and the first logical link is used to transmit data corresponding to the data service task. It can be seen that the first node can send configuration information including the type of logical link to the second node that performs the data service task according to the data service requirement information, so that the logical link established by the second node according to the type of the logical link can satisfy Data service requirements, and logical links are used to transmit data corresponding to data service tasks, which provides a transmission method for data corresponding to data service tasks that meets data service requirements. At the same time, because the logical link is used to transmit data corresponding to the data service task, it can reduce interference to the transmission of existing business data.

Optionally, combined with the first aspect, the method further includes: the first node receiving capability information sent by one or more third nodes; the capability information is used to indicate that the one or more third nodes support at least one of the following: data collection capabilities, data preprocessing capabilities, data reporting capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities; the first node selects the second node for performing data service tasks based on the data service requirement information, including: the first node based on The data service requirement information and capability information are used to select the second node from one or more third nodes. It can be seen that the first node can use the data service requirement information and the capability information of one or more third nodes to select the second node for performing the data service task from the one or more third nodes, so that the selected second node The node has the capability to meet the data service requirement information.

Optionally, combined with the first aspect, the data reporting capability includes at least one of the following: reported data type, data transmission interval, data amount for a single transmission, maximum data transmission amount, and minimum data transmission amount for a single transmission.

Optionally, combined with the first aspect, the method further includes: the first node sending a system message to one or more third nodes; wherein the system message is used to indicate that the first node supports data service capabilities. It can be seen that the first node sends a system message to one or more third nodes, and the system message is used to indicate that the first node supports the data service capability, so that the one or more third nodes can learn that the first node supports the data service capability.

Optionally, combined with the first aspect, if the type of the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: tasks that the second node needs to perform, and data protection used by the first node. algorithm, the data compression algorithm used by the first node, the interval between data transmission by the first node, the amount of data transmitted by the first node in a single time, the tasks that the second node needs to perform, the data protection algorithm used by the second node, the second node The data compression algorithm used, the interval for data transmission by the second node, the amount of data transmitted by the second node in a single transmission, the maximum data transmission amount by the second node, and the minimum data transmission amount by the second node in a single transmission. It can be seen that this achieves data security protection, data privacy protection, etc. At the same time, by issuing this information, the second node can learn that the first node has implemented data security protection, data privacy protection, etc., and the second node can also learn the relevant algorithms used for data security protection, data privacy protection, etc.

Optionally, combined with the first aspect, if the type of the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: tasks that the second node needs to perform, data used by the first node The protection algorithm, the data compression algorithm used by the first node, the interval between data transmission by the first node, and the amount of data transmitted by the first node in a single time. It can be seen that this achieves data security protection, data privacy protection, etc. At the same time, by issuing this information, the second node can learn that the first node has implemented data security protection, data privacy protection, etc.

Optionally, combined with the first aspect, if the type of the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: tasks that the second node needs to perform, and data used by the second node. Protection algorithm, the data compression algorithm used by the second node, the interval between data transmission by the second node, the amount of data transmitted by the second node in a single time, the maximum data transmission amount by the second node in data transmission, the number of data transmitted by the second node in a single time Minimum data transfer amount. It can be seen that this achieves data security protection, data privacy protection, etc. At the same time, by issuing this information, the second node can learn the relevant algorithms used for data security protection, data privacy protection, etc.

Optionally, combined with the first aspect, the task that the second node needs to perform is uniquely identified by the identifier of the data service task and the identifier of the sub-task of the data service task.

Optionally, combined with the first aspect, if the type of the first logical link is a unidirectional downlink and the number of second nodes is multiple, the method further includes: the first node sends multicast data, and the multicast data is associated The first logical links corresponding to different nodes among the plurality of second nodes, and the multicast data are data corresponding to the data service task. It can be seen that because the multicast data sent by the first node can be associated with the first logical links corresponding to different nodes among the multiple second nodes, the first node will not send the same data to different nodes respectively, saving downlink air interface resources. , which improves resource utilization and enables different nodes to receive the same multicast data.

Optionally, combined with the first aspect, the method further includes: if the data corresponding to the data service task is transmitted on the first logical link, the first node sends a second message to the second node, and the second message is used to indicate the second message. The second node deletes the first logical link. It can be seen that when the data corresponding to the data service task is transmitted on the first logical link, the second node can be notified to delete the first logical link, which reduces the power consumed by the second node when maintaining the first logical link. Energy consumption is saved.

Optionally, combined with the first aspect, the method further includes: if the first node determines that the cell after the second node performs cell switching is the first cell of the first node, the first node sends a third message to the second node, The three messages are also used to instruct the second node to retain the first configuration information. It can be seen that when the cell after the second node performs cell switching is the first cell of the first node, the second node can be notified to retain the first configuration information, so that the first node does not need to send the first configuration information to the first node again. .

Optionally, combined with the first aspect, the method further includes: if the first node determines that the cell after the second node performs cell switching is the fourth node's cell, the first node sends a fourth message to the second node, and the fourth message Used to instruct the second node to delete the first logical link. It can be seen that when the first node determines that the cell after the second node performs cell switching is not the first node's cell, the first node can notify the second node to delete the first logical link, which reduces the need for the second node to maintain the first logical link. The power consumed during the link saves energy consumption.

Optionally, combined with the first aspect, the method further includes: if the number of second nodes currently used to perform the data service task is less than the first number, the first node reselects the node used to perform the data service task according to the data service requirement information. The first number of nodes is the number determined by the first node based on the data service requirement information. It can be seen that when the number of second nodes currently used to perform data service tasks is less than the first number, the first node can re-select a new node to perform data service tasks, ensuring that the number of nodes performing data service tasks is always the same. Meet the quantity determined based on data service requirement information.

Optionally, combined with the first aspect, the method further includes: if the first node determines that the cell selected by the second node after call reestablishment is the first node's second cell, the first node resends the first message to the second node. . It can be seen that when the first node determines that the cell selected by the second node after call reestablishment is the first node's second cell, the first node re-sends the first message to the second node so that the second node can establish a new cell. The first logical link under the new cell can then transmit the data corresponding to the data service task on the first logical link under the new cell, ensuring the continuity of data services.

Optionally, combined with the first aspect, the method further includes: if the first node determines that the cell selected by the second node after call reestablishment is the cell of the fifth node, and the number of second nodes currently used to perform data service tasks If the number is less than the second number, the first node reselects a node for performing the data service task based on the data service requirement information. The first number is the number determined by the first node based on the data service requirement information. It can be seen that when the first node determines that the cell selected by the second node after call reestablishment is not the first node's cell, and the number of second nodes currently used to perform data service tasks is less than the second number, the first node can Re-selecting new nodes to perform data service tasks ensures that the number of nodes performing data service tasks always meets the number determined based on data service requirement information.

In a second aspect, a communication method is provided, including: a second node receiving a first message from a first node; the first message includes first configuration information, the first configuration information includes a type of a first logical link, and the first logical link The type of the link is a bidirectional logical link, a unidirectional downlink or a unidirectional uplink. The first logical link is a logical link between the first node and the second node, and the first logical link is used to transmit data. Data corresponding to the service task; the second node establishes the first logical link according to the type of the first logical link.

Optionally, combined with the second aspect, the method further includes: the second node sending capability information of the second node to the first node; the capability information of the second node being used to indicate that the second node supports at least one of the following: data collection. capabilities, data preprocessing capabilities, data reporting capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities.

Optionally, combined with the second aspect, the data reporting capability includes at least one of the following: reported data type, data transmission interval, data amount for a single transmission, maximum data transmission amount, and minimum data transmission amount for a single transmission.

Optionally, combined with the second aspect, the method further includes: the second node receiving a system message sent by the first node; wherein the system message is used to indicate that the first node supports data service capabilities.

Optionally, combined with the second aspect, if the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: the task that the second node needs to perform, the data protection algorithm used by the first node, The data compression algorithm used by the first node, the interval between data transmission by the first node, the amount of data transmitted by the first node in a single time, the tasks that the second node needs to perform, the data protection algorithm used by the second node, the Data compression algorithm, interval for data transmission by the second node, data volume for a single transmission by the second node, maximum data transmission volume for data transmission by the second node, and minimum data transmission volume for a single transmission by the second node.

Optionally, combined with the second aspect, if the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: tasks that the second node needs to perform, and the data protection algorithm used by the first node. , the data compression algorithm used by the first node, the interval between data transmission by the first node, and the amount of data transmitted by the first node in a single time.

Optionally, combined with the second aspect, if the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: tasks that the second node needs to perform, and the data protection algorithm used by the second node. , the data compression algorithm used by the second node, the interval of data transmission by the second node, the amount of data transmitted by the second node in a single time, the maximum data transmission amount of the second node in data transmission, the minimum data transmitted by the second node in a single time Transmission volume.

Optionally, combined with the second aspect, the task that the second node needs to perform is uniquely identified by the identifier of the data service task and the identifier of the sub-task of the data service task.

Optionally, combined with the second aspect, the method further includes: the second node receiving a second message sent by the first node, the second message being used to instruct the second node to delete the first logical link.

Optionally, combined with the second aspect, the cell after the second node performs cell switching is the first cell of the first node. The method further includes: the second node receives a third message sent by the first node, and the third message is used to Instruct the second node to retain the first configuration information; the second node establishes the first logical link under the first cell according to the type of the first logical link in the first configuration information; the second node communicates with the first logical link through the first logical link. One node transmits the remaining data corresponding to the data service task. It can be seen that when the cell after the second node performs cell switching is the first cell of the first node, the second node can be notified to retain the first configuration information, so that the first node does not need to send the first configuration information to the first node again. , also allows the second node to quickly establish the first logical link under the new cell, and then continue to transmit the remaining data corresponding to the data service task on the first logical link under the new cell, ensuring the continuity of data services.

Optionally, combined with the second aspect, the cell after the second node performs cell switching is the cell of the fourth node. The method further includes: the second node receives a fourth message sent by the first node, and the fourth message is used to indicate the fourth node. The second node deletes the first logical link.

Optionally, combined with the second aspect, the method further includes: the second node does not establish a logical link with the fourth node.

Optionally, combined with the second aspect, the cell selected by the second node after call reestablishment is the second cell of the first node. The method further includes: the second node re-receives the first message sent by the first node; According to the type of the first logical link in the first message, the first logical link under the second cell is established; the second node transmits the remaining data corresponding to the data service task with the first node through the first logical link.

Optionally, combined with the second aspect, the cell selected by the second node after call reestablishment is the cell of the fifth node, and the method further includes: the second node does not establish a logical link with the fifth node.

In a third aspect, a communication device is provided. The communication device is a first node. The first node includes a processing module and a transceiver module. The transceiver module is used to obtain data service requirement information; the processing module is used to select according to the data service requirement information. A second node used to perform data service tasks; a transceiver module, also used to send a first message to the second node based on data service requirement information; the first message includes first configuration information, and the first configuration information includes a first logical link type, the type of the first logical link is a bidirectional logical link, a unidirectional downlink or a unidirectional uplink, the first logical link is a logical link between the first node and the second node, the first Logical links are used to transmit data corresponding to data service tasks.

Optionally, combined with the third aspect, the transceiver module is also used to receive capability information sent by one or more third nodes; the capability information is used to indicate that one or more third nodes support at least one of the following: data collection capability, Data preprocessing capabilities, data reporting capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities; when selecting the second node for performing data service tasks based on the data service requirement information, the processing module is used for the first node to perform the data service task according to the data service requirement information. The data service requirement information and capability information are used to select the second node from one or more third nodes.

Optionally, combined with the third aspect, the data reporting capability includes at least one of the following: reported data type, data transmission interval, data amount for a single transmission, maximum data transmission amount, and minimum data transmission amount for a single transmission.

Optionally, combined with the third aspect, the transceiver module is also configured to send a system message to one or more third nodes; wherein the system message is used to indicate that the first node supports data service capabilities.

Optionally, combined with the third aspect, if the type of the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: tasks that the second node needs to perform, and data protection used by the first node. algorithm, the data compression algorithm used by the first node, the interval between data transmission by the first node, the amount of data transmitted by the first node in a single time, the tasks that the second node needs to perform, the data protection algorithm used by the second node, the second node The data compression algorithm used, the interval for data transmission by the second node, the amount of data transmitted by the second node in a single transmission, the maximum data transmission amount by the second node, and the minimum data transmission amount by the second node in a single transmission.

Optionally, combined with the third aspect, if the type of the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: tasks that the second node needs to perform, data used by the first node The protection algorithm, the data compression algorithm used by the first node, the interval between data transmission by the first node, and the amount of data transmitted by the first node in a single time.

Optionally, combined with the third aspect, if the type of the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: tasks that the second node needs to perform, data used by the second node Protection algorithm, the data compression algorithm used by the second node, the interval between data transmission by the second node, the amount of data transmitted by the second node in a single time, the maximum data transmission amount by the second node in data transmission, the number of data transmitted by the second node in a single time Minimum data transfer amount.

Optionally, combined with the third aspect, the task that the second node needs to perform is uniquely identified by the identifier of the data service task and the identifier of the sub-task of the data service task.

Optionally, combined with the third aspect, if the type of the first logical link is a unidirectional downlink and the number of second nodes is multiple, the transceiver module is also used to send multicast data, and the multicast data is associated with multiple The first logical links corresponding to different nodes in the second node, and the multicast data are data corresponding to the data service task.

Optionally, combined with the third aspect, the transceiver module is also used to: if the data corresponding to the data service task is transmitted on the first logical link, the first node sends a second message to the second node, and the second message is used to Instruct the second node to delete the first logical link.

Optionally, combined with the third aspect, the transceiver module is also configured to: if the first node determines that the cell after the second node performs cell switching is the first cell of the first node, the first node sends a third message to the second node. , the third message is also used to instruct the second node to retain the first configuration information.

Optionally, combined with the third aspect, the transceiver module is also configured to: if the first node determines that the cell after the second node performs cell switching is the fourth node's cell, the first node sends a fourth message to the second node, and The four message is used to instruct the second node to delete the first logical link.

Optionally, combined with the third aspect, the processing module is also configured to: if the number of second nodes currently used to perform data service tasks is less than the first number, reselect the first node for performing data services according to the data service requirement information. The first number of task nodes is the number determined by the first node based on the data service requirement information.

Optionally, combined with the third aspect, the transceiver module is also configured to: if the first node determines that the cell selected by the second node after call reestablishment is the second cell of the first node, the first node re-sends the second cell to the second node. A message.

Optionally, combined with the third aspect, the processing module is also configured to: if the first node determines that the cell selected by the second node after call reestablishment is the cell of the fifth node, and the second node is currently used to perform the data service task The number is less than the second number, the first node reselects a node for performing the data service task according to the data service requirement information, and the first number is the number determined by the first node according to the data service requirement information.

In a fourth aspect, a communication device is provided. The communication device is a second node. The second node includes a processing module and a transceiver module. The transceiver module is used to receive a first message from the first node; the first message includes first configuration information, The first configuration information includes a type of the first logical link. The type of the first logical link is a bidirectional logical link, a unidirectional downlink or a unidirectional uplink. The first logical link is a link between the first node and the second node. Logical links between nodes, the first logical link is used to transmit data corresponding to the data service task; the processing module is used to establish the first logical link according to the type of the first logical link.

Optionally, combined with the fourth aspect, the transceiver module is also used to send the capability information of the second node to the first node; the capability information of the second node is used to indicate that the second node supports at least one of the following: data collection capability, Data preprocessing capabilities, data reporting capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities.

Optionally, combined with the fourth aspect, the data reporting capability includes at least one of the following: reported data type, data transmission interval, data amount for a single transmission, maximum data transmission amount, and minimum data transmission amount for a single transmission.

Optionally, combined with the fourth aspect, the transceiver module is also configured to receive a system message sent by the first node; wherein the system message is used to indicate that the first node supports data service capabilities.

Optionally, combined with the fourth aspect, if the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: the task that the second node needs to perform, the data protection algorithm used by the first node, The data compression algorithm used by the first node, the interval between data transmission by the first node, the amount of data transmitted by the first node in a single time, the tasks that the second node needs to perform, the data protection algorithm used by the second node, the Data compression algorithm, interval for data transmission by the second node, data volume for a single transmission by the second node, maximum data transmission volume for data transmission by the second node, and minimum data transmission volume for a single transmission by the second node.

Optionally, combined with the fourth aspect, if the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: a task that the second node needs to perform, and a data protection algorithm used by the first node. , the data compression algorithm used by the first node, the interval between data transmission by the first node, and the amount of data transmitted by the first node in a single time.

Optionally, combined with the fourth aspect, if the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: a task that the second node needs to perform, and a data protection algorithm used by the second node. , the data compression algorithm used by the second node, the interval of data transmission by the second node, the amount of data transmitted by the second node in a single time, the maximum data transmission amount of the second node in data transmission, the minimum data transmitted by the second node in a single time Transmission volume.

Optionally, combined with the fourth aspect, the task that the second node needs to perform is uniquely identified by the identifier of the data service task and the identifier of the sub-task of the data service task.

Optionally, in conjunction with the fourth aspect, the transceiver module is further configured to receive a second message sent by the first node, where the second message is used to instruct the second node to delete the first logical link.

Optionally, combined with the fourth aspect, the cell after the second node performs cell switching is the first cell of the first node. The transceiver module is also configured to receive a third message sent by the first node, and the third message is used to indicate the third message. The two nodes retain the first configuration information; the processing module is also used to establish the first logical link under the first cell according to the type of the first logical link in the first configuration information; the transceiver module is also used to pass the first logical link The link transmits remaining data corresponding to the data service task with the first node.

Optionally, combined with the fourth aspect, the cell after the second node performs cell switching is the cell of the fourth node. The transceiver module is also used to receive a fourth message sent by the first node, and the fourth message is used to instruct the second node. Delete the first logical link.

Optionally, combined with the fourth aspect, the processing module is also used to not establish a logical link with the fourth node.

Optionally, combined with the fourth aspect, the cell selected by the second node after call reestablishment is the second cell of the first node. The transceiver module is also used to re-receive the first message sent by the first node; the processing module is also used Establishing the first logical link under the second cell according to the type of the first logical link in the first message; the transceiver module is also configured to transmit the remaining data corresponding to the data service task with the first node through the first logical link .

Optionally, combined with the fourth aspect, the cell selected by the second node after call reestablishment is the cell of the fifth node, and the processing module is also configured not to establish a logical link with the fifth node.

A fifth aspect provides a communication device, including a processor. The processor calls a computer program stored in a memory to implement the method in any one of the first aspect or the second aspect.

In a possible design, the communication device may be a chip that implements the method in the first aspect or the second aspect or a device containing the chip.

In a sixth aspect, a communication device is provided, including a logic circuit and an input-output interface. The logic circuit is used to read and execute stored instructions. When the instructions are executed, the communication device executes the instructions as in the first aspect or the second aspect. any of the methods described.

In a seventh aspect, a computer-readable storage medium is provided. A computer program is stored in the computer-readable storage medium. When the computer program is run, the method as described in any one of the first aspect or the second aspect is implemented.

An eighth aspect provides a computer program product containing instructions that, when executed on a computer, causes the method described in any one of the first aspect or the second aspect to be executed.

A ninth aspect provides a communication system, including a first node for performing the method according to any one of the first aspects and a second node for performing the method according to any one of the second aspects.

Description of the drawings

The following will briefly introduce the drawings needed to describe the embodiments.

Figure 1 is the infrastructure of a communication system provided by an embodiment of the present application;

Figure 2 shows a schematic diagram of the hardware structure of a communication device applicable to embodiments of the present application;

Figure 3 is a schematic flow chart of a communication method provided by an embodiment of the present application;

Figure 4 is a schematic diagram of a logical link established between an access network device and a terminal device provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 6 is a schematic structural diagram of a simplified terminal device provided by an embodiment of the present application;

Figure 7 is a schematic structural diagram of a simplified access network device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Among them, the terms "system" and "network" in the embodiments of this application can be used interchangeably. Unless otherwise stated, "/" indicates that the related objects are in an "or" relationship. For example, A/B can represent A or B; "and/or" in this application is only a way to describe related objects. Association relationship means that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items). For example, at least one of a, b, or c can mean: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be one or more . In addition, in order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as “first” and “second” are used to distinguish identical or similar items with basically the same functions and effects. Those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order, and words such as "first" and "second" do not limit the number and execution order.

Reference in describing an embodiment of the application to "one embodiment" or "some embodiments" or the like means that a particular feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Therefore, the phrases "in one embodiment", "in some embodiments", "in other embodiments", "in other embodiments", etc. appearing in different places in this specification are not necessarily References are made to the same embodiment, but rather to "one or more but not all embodiments" unless specifically stated otherwise. The terms “including,” “includes,” “having,” and variations thereof all mean “including but not limited to,” unless otherwise specifically emphasized. The following specific implementations further describe the purpose, technical solutions and beneficial effects of this application in detail. It should be understood that the following are only specific implementations of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc. made based on the technical solutions of this application shall be included in the protection scope of this application.

In the various embodiments of this application, if there is no special explanation or logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

It should be understood that the technical solutions of the embodiments of the present application can be applied to long term evolution (long term evolution, LTE) architecture, fifth generation mobile communication technology (5th generation mobile networks, 5G), wireless local area networks (wireless local area networks, WLAN) systems , V2X communication system, etc. The technical solutions of the embodiments of this application can also be applied to other future communication systems, such as 6G communication systems. In future communication systems, the functions may remain the same, but the names may change.

The following introduces the basic architecture of the communication system provided by the embodiment of the present application. Referring to Figure 1, Figure 1 shows the infrastructure of a communication system provided by an embodiment of the present application. As shown in Figure 1, the communication system may include an access network device and one or more terminal devices communicating with the access network device. Figure 1 is only a schematic diagram and does not constitute a limitation on the applicable scenarios of the technical solution provided by this application.

The access network device is an entity on the network side that is used to send signals, or receive signals, or send signals and receive signals. Access network equipment can be a device deployed in a radio access network (RAN) to provide wireless communication functions for terminal equipment, such as a transmission reception point (TRP), base station, various forms of control node. For example, network controller, wireless controller, wireless controller in cloud radio access network (cloud radio access network, CRAN) scenario, etc. Specifically, the access network equipment can be various forms of macro base stations, micro base stations (also called small stations), relay stations, access points (access points, AP), wireless network controllers (radio network controller, RNC), Node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseBand unit, BBU), transmission point (transmitting and receiving point, TRP), transmitting point (TP), mobile switching center), satellite, drone, etc., can also be the antenna panel of the base station. The control node can connect to multiple base stations and configure resources for multiple terminals covered by multiple base stations. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, it can be the gNB in 5G, or the network side equipment in the network after 5G or the access network equipment in the future evolved PLMN network, or device-to-device (D2D) communication, machine-to-machine (Machine-to-Machine, M2M) communications, equipment that performs base station functions in Internet of Vehicles communications, etc. This application does not limit the specific names of access network equipment. In addition, access network equipment may also include distributed units (DU) and centralized units (CU). Among them, CU and DU are connected through the F1 interface.

A terminal device is an entity on the user side that is used to receive signals, or send signals, or receive signals and send signals. The terminal device is used to provide one or more of voice services and data connectivity services to users. The terminal device may be a device that includes wireless transceiver functions and can cooperate with access network equipment to provide communication services to users. Specifically, the terminal equipment may refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, terminal, wireless communication equipment, user agent or User device. The terminal device can also be a drone, an Internet of things (IoT) device, a station (ST) in a WLAN, a cellular phone, a smart phone, a cordless phone, or a wireless data card , tablet computers, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistant (PDA) devices, laptop computers (laptop computers) , machine type communication (MTC) terminals, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices (also known as wearable smart devices), Virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving, and remote medical Wireless terminals, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. The terminal device can also be a device to device (D2D) device, such as an electric meter, a water meter, etc. The terminal device may also be a terminal in a 5G system or a terminal in a next-generation communication system, which is not limited in the embodiments of the present application.

In this application, access network equipment and terminal equipment may be deployed with data agent (data agent, DA) network elements. It should be understood that the number of data proxy network elements deployed in the access network device may be one or more, and the number of data proxy network elements deployed in the terminal device may be one or more.

The data proxy network element can implement one or more of the following functions: data collection, preprocessing, storage, analysis, and data protection. Different data proxy network elements can have the same or different data service capabilities and can implement the same or different functions. The data proxy network element can interact with the data orchestration network element (data orchestration, DO) (not shown in Figure 1), obtain relevant operations that need to be performed to achieve service requirements, and perform the operations. The number of data orchestration network elements may be one or more. The data agent network element can also establish a logical network topology to form a dynamic data pipeline (also known as data flow, business logic, function chain, operation chain, etc.). The data pipeline consists of one or more data agent network elements. The corresponding functions are composed according to service requirements, and the output of the previous function is the input of the next function, thereby realizing responsive data services.

For example, the data proxy network element can be evolved from the NWDAF network element and can realize the functions of the NWDAF network element and the scenario use cases based on the NWDAF network element.

The data orchestration network element can obtain the service request, translate the service request into a service requirement for data, determine the data agent network element used to realize the service requirement, orchestrate the functions of each data agent network element, and enable the data agent network element to perform corresponding operations. And establish a dynamic logical network topology to achieve corresponding service requirements.

Illustratively, the data orchestration network element can be deployed on any core network element, transfer network (TN) network element, access network equipment or other network element (such as operation, management and maintenance (operation administration and maintenance, OAM) ) network elements, etc.), or data orchestration network elements can be deployed independently. For example, data orchestration network elements can be deployed hierarchically on the core network or access network equipment side. Data orchestration network elements can be deployed in network service (NS) network elements. For another example, data orchestration network elements can be independently deployed in the network as network functions (NF) or network elements. In actual deployment, one or more NFs can form a network element.

Among them, core network elements can be located on the network side of the communication system and can be used to provide network services for access network equipment, terminal equipment, etc. The core network elements may include but are not limited to one or more of the following: mobility management network elements, session management network elements, user plane network elements, policy control network elements, network opening network elements, application network elements, and network data analysis functions. (network data analysis function, NWDAF) network element, and/or operation, management and maintenance (operation administration and maintenance, OAM) network element.

Mobility management network element: mainly used for mobility management and access management. In the 5G mobile communication system, the access management network element can be an access and mobility management function (AMF) network element, which mainly performs functions such as mobility management and access authentication/authorization. In addition, the mobility management network element can also be responsible for transmitting user policies between the terminal and the policy control function (PCF) network element.

Session management network element: Mainly used for session management (such as creation, deletion, etc.), maintaining session context and user plane forwarding pipeline information, Internet protocol (IP) address allocation and management of terminal equipment, and selecting manageable users Termination points of plane functions, policy control and charging function interfaces, and downlink data notifications, etc.

In the 5G communication system, the session management network element can be a session management function (SMF) network element, which completes terminal IP address allocation, UPF selection, accounting and QoS policy control, etc.

User plane network element: As an interface with the data network, it completes functions such as user plane data forwarding, session/flow-level accounting statistics, and bandwidth limitation. That is, packet routing and forwarding and quality of service (QoS) processing of user plane data, etc. In the 5G communication system, the user plane network element may be a user plane function (UPF) network element.

Policy control network element: including user subscription data management function, policy control function, billing policy control function, quality of service (QoS) control, etc. It is a unified policy framework used to guide network behavior and is a control plane functional network element (such as AMF, SMF network elements, etc.) to provide policy rule information, etc. In the 5G mobile communication system, the policy control network element may be the PCF.

Network open network element: It can be used to provide frameworks, authentications and interfaces related to network capability opening, and to transfer information between 5G system network functions and other network functions. In the 5G communication system, the network open network element can be a network element function (NEF) network element, which is mainly used to open the services and capabilities of 3GPP network functions to AF, and also allows AF to provide 3GPP network functions. information.

Application network elements: can be used to provide various business services, can interact with the core network through network element function (NEF) network elements, and can interact with the policy management framework for policy management. In the 5G communication system, the application network element can be an application function (AF) network element or a time-sensitive network application function (TSNAF) network element, which represents the application function of a third party or operator. It is the interface for the 5G network to obtain external application data, and is mainly used to convey the needs of the application side to the network side.

NWDAF network element: can be used to collect data from the core network and OAM network elements and feed back data analysis results to NF, AF or OAM. For example, the NWDAF network element can collect OAM data from the OAM network element and collect non-OAM data from the core network NF or AF. The non-OAM data can include collecting non-OAM data at the terminal, terminal group, service and other levels.

OAM network element: can collect data from access network equipment.

It should be noted that the data orchestration network element can be a logical entity or a physical entity, and the data proxy network element can be a logical entity or a physical entity, which is not limited in this application.

For example, the data proxy network element can be deployed in a centralized manner or in a distributed manner. Distributed deployment methods can include distributed hash table (DHT) methods, etc.

Data proxy network elements are distributed and flexibly deployed on demand, which can meet diverse and flexible data service needs and reduce the cost of data collection.

Optionally, the terminal device can also deploy a protocol processing unit to implement standard protocols.

Optionally, the communication system may also include other devices, such as trusted anchors (trust anchors, TAs) and service requesting network elements, which are not shown in Figure 1 .

Trusted anchors can provide trusted services such as authentication, authentication, and access control (AAA), for example, through distributed ledger technology (DLT). Trusted anchor points can store data that cannot be tampered with, such as public keys, identifiers, indexes of terminal devices or network elements, transaction-related data, or important data that cannot be tampered with.

Optionally, the storage capabilities of distributed ledger technology can be expanded by combining on-chain and off-chain storage, such as storing original data locally in the data broker network element or in the data storage network element. (off-chain), store the hash value of the original data, or the hash value of the digest of the packaged original data, in the extended DLT (on-chain), and at the same time save the hash value pointing to the original data in the DLT (on-chain) address. By comparing the new hash value generated from the original data or its digest stored off-chain with the hash value saved on the chain, this prevents the original data off-chain from being tampered with.

By way of example, the trusted anchor may be deployed in a distributed or centralized manner. Trusted anchors for distributed deployment can be nodes of distributed ledger technology DLT (such as blockchain), and trusted anchors for centralized deployment can be existing security and trustworthiness mechanisms such as authentication, authorization, and access control. Achieved through transformation and evolution.

For example, the trusted anchor point can realize the security and privacy protection mechanism of the entire data service process through data access control such as authentication, authorization, access control, etc., combined with the data security and privacy protection technology library, and can support the entire data service process. Security and privacy protection, can support trusted data service requirements such as traceability, auditing, and autonomous control of user data, can support the realization of data sharing and transactions, and other requirements for trustworthy mechanisms such as traceability and auditing, and can meet the requirements of the Personal Information Protection Law (personal information protection law). Information protection law, PIPL), General Data Protection Regulation (general data protection regulation, GDPR) and other compliance requirements can provide trusted data services. Compliance testing for user data processing can implement a decentralized verification mechanism to avoid single-point trust and failure issues.

The service requesting network element may include an application, an application server or a network service NS network element, etc. The application may be an operator (or communication service provider (CSP)) used for network planning, network optimization, and/or network artificial intelligence. Applications such as artificial intelligence (AI) can also be applications outside the mobile communication network (also called third-party applications). Service requesting network elements can be independently deployed in the network as network functions or network elements.

Optionally, each device in Figure 1 (such as access network equipment, terminal equipment, etc.) can be implemented by one device, or can be implemented by multiple devices together, or can be a functional module within one device. This application implements The example does not specifically limit this. It can be understood that the above functions can be either network elements in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (eg, cloud platform).

For example, each device in Figure 1 can be implemented by the communication device 200 in Figure 2 . FIG. 2 is a schematic diagram of the hardware structure of a communication device applicable to embodiments of the present application. The communication device 200 includes at least one processor 201, a communication line 202, a memory 203 and at least one communication interface 204.

The processor 201 can be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors used to control the execution of the program of the present application. integrated circuit.

Communication line 202 may include a path for communicating information between the above-mentioned components.

The communication interface 204 is any transceiver-type device (such as an antenna, etc.) used to communicate with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), etc.

The memory 203 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory (RAM)) or other type that can store information and instructions. A dynamic storage device can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Any other medium for access, but not limited to this. The memory may exist independently and be connected to the processor through the communication line 202 . Memory can also be integrated with the processor. The memory provided by the embodiment of the present application may generally be non-volatile.

Among them, the memory 203 is used to store computer execution instructions for executing the solution of the present application, and is controlled by the processor 201 for execution. The processor 201 is used to execute computer execution instructions stored in the memory 203, thereby implementing the methods provided by the following embodiments of the application.

Optionally, the computer-executed instructions in the embodiments of the present application may also be called application codes, which are not specifically limited in the embodiments of the present application.

In a possible implementation, the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2 .

In a possible implementation, the communication device 200 may include multiple processors, such as the processor 201 and the processor 207 in FIG. 2 . Each of these processors may be a single-CPU processor or a multi-CPU processor. A processor here may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

In a possible implementation, the communication device 200 may also include an output device 205 and an input device 206. Output device 205 communicates with processor 201 and can display information in a variety of ways. For example, the output device 205 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. wait. Input device 206 communicates with processor 201 and may receive user input in a variety of ways. For example, the input device 206 may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

The above-mentioned communication device 200 may be a general-purpose device or a special-purpose device. In a specific implementation, the communication device 200 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device with a similar structure as shown in Figure 2 equipment. The embodiment of the present application does not limit the type of communication device 200.

The communication method provided by this application will be described below with reference to the accompanying drawings. It should be understood that in this application, the first node, the fourth node and the fifth node may be the access network equipment in Figure 1, and the second node and the third node may be the terminal equipment in Figure 1. For ease of understanding, the first node may be called the first access network device, the fourth node may be called the second access network device, the fifth node may be called the third access network device, and the second node may be called The first terminal device and the third node are called second terminal devices.

Referring to Figure 3, Figure 3 is a schematic flow chart of a communication method provided by an embodiment of the present application. As shown in Figure 3, the method includes but is not limited to the following steps:

301. The first access network device obtains data service requirement information.

Optionally, step 301 may include: the first access network device receiving the data service request sent by the service requesting network element; and the first access network device determining the data service requirement information according to the data service request. Wherein, the first access network device receiving the data service request sent by the service requesting network element can be understood as: the first access network device receives the data service request sent by the data orchestration network element, and the data orchestration network element receives the data service request sent by the service requesting network element. Data service request.

It should be understood that data service requests can be used to request application services or business services. Application services may refer to services requested by applications or application servers, and business services may refer to services requested by network service network elements. In different scenarios, the services requested by data service requests may be different.

For example, the data service request can be used to request at least one of the following services: network data-related services, user data-related services, artificial intelligence model data-related services, and Internet of Things data-related services.

Network data may include at least one of the following: logs (such as debugging logs, security logs, call history record (CHR) logs, etc.), alarms, traffic statistics, configuration data, minimization of drive-tests , MDT) data, user session information, integrated sensing and communication (ISAC) data, digital twin network data, network metadata, network status, and network behavior.

User data may include user subscription information. For example, user portrait (profile), etc.

The Internet of Things data may include but is not limited to one or more of the following: environmental data, sensor data, and measurement data of the first terminal device (the first terminal device is an Internet of Things device).

Artificial Intelligence (AI) model data can include at least one of the following: training data sets for data service tasks, test data sets for data service tasks, local/global model data, and artificial intelligence metadata. It should be understood that the data service task may be, for example, an artificial intelligence model training task or a subtask of the artificial intelligence model training task. Among them, the artificial intelligence model training task is the task of training the artificial intelligence model through the training data set. Generally speaking, after training the artificial intelligence model, it is also necessary to use the test data set to verify the effect of the artificial intelligence model.

It should be noted that this data service task is an artificial intelligence model training task, which means that the artificial intelligence model can be trained through the training data set as a data service task, or the test data set can be used to verify the effect of the artificial intelligence model as a Data service tasks. This data service task is a subtask of the artificial intelligence model training task, which means that the artificial intelligence model can be trained through the training data set, and the test data set can be used to verify the effect of the artificial intelligence model as a data service task, and through the training data Training the artificial intelligence model and using the test data set to verify the effect of the artificial intelligence model are regarded as a sub-task.

It should be understood that in this application, the services requested by the data service requests are different, and the data service tasks are also different.

For example, the data service request is used to request services related to network data. If the network data is minimized drive test data, the data service task can collect the minimized drive test data for the first terminal device and report it to the first access network equipment.

In another example, the data service request is used to request artificial intelligence model data-related services. Specifically, the data service request is used to request training of a federated learning model, and the federated learning model is used for service quality prediction. At this time, the data service task may be that the first access network device sends global model data to the first terminal device, and the first terminal device trains a local federated learning model after receiving the global model data.

In this application, when the data service request is used to request at least one of the following services: network data-related services, user data-related services, artificial intelligence model data-related services, and Internet of Things data-related services, the data service requirement information is such as It can include at least one of the following: the type of data to be collected, the amount of data collected each time, the total amount of data, the frequency of collecting data, data preprocessing of the collected data, data analysis, etc. In this application, the data type may be, for example, one or more of network data, user data, artificial intelligence model data, Internet of Things data, and the like. Perform data preprocessing on the collected data, such as performing the following processing on the collected data: field extraction, format conversion, redundant data removal, compression, fusion, etc. Data analysis can, for example, perform AI training or AI inference on preprocessed data (for example, data after data preprocessing with redundant data removed), or can also be used to conduct network behavior analysis using collected data.

In addition, in a possible implementation, before the first access network device receives the data service request sent by the data orchestration network element, the first access network device may also register with the data orchestration network element.

Optionally, the method may also include step 302.

302. The first access network device selects the first terminal device for performing the data service task according to the data service requirement information.

It should be understood that the number of first terminal devices may be one or more, and is not limited here.

Optionally, the method further includes: the first access network device receiving capability information sent by one or more second terminal devices; the capability information is used to indicate that the one or more second terminal devices support at least one of the following: data Collection capabilities, data preprocessing capabilities, data reporting capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities; the first access network device selects the first terminal device for performing data service tasks based on the data service demand information, including : The first access network device selects the first terminal device for performing the data service task from one or more second terminal devices according to the data service requirement information and the capability information. This enables the selected first terminal device to meet the data service requirement information in terms of capabilities.

In this application, the capability information can be carried, for example, in the UE capability information (UE capability information) message or in the data service capability information (DS capability information) message. The UE capability information message and the data service capability information message can be Radio resource control (RRC) message. It should be understood that the data service capability information message is newly added signaling in this application.

Optionally, the data collection capability may include, for example, the type of data collected.

Optionally, data preprocessing capabilities can include data field extraction, format conversion, redundant data removal, compression, fusion, etc. The data here may be, for example, data obtained by the first terminal device from the first access network device, or may be data generated by the first terminal device. For example, after the first terminal device obtains data from the first access network device, the first terminal device may use the data proxy network element to perform data preprocessing. For another example, the data proxy network element of the first terminal device provides an interface for the application software (APP) on the first terminal device to write data and then report it to the first access network device, so that the first access network device can use the data proxy. Network elements perform data preprocessing.

Optionally, the data storage capability may include at least one of the following: storable data capacity, encryption algorithm for storing data, and storage method.

Optionally, the data reporting capability may include, for example, at least one of the following: reported data type, data transmission interval, data amount for a single transmission, maximum data transmission amount, and minimum data transmission amount for a single transmission.

Optionally, the data analysis capability may include, for example, at least one of the following: supported analysis tasks, whether to support AI training, and whether to support AI inference. The data protection capability may be, for example, a data protection algorithm, such as one or more of k-anonymity, l-diversity, differential privacy, homomorphic encryption, secure multi-party computation, etc. .

Optionally, the data compression capability may be, for example, one or more of data compression algorithms, such as Huffman coding (Huffman Coding), arithmetic coding, etc.

Optionally, the first access network device selects the first terminal device for performing the data service task from one or more second terminal devices according to the data service requirement information and the capability information, which may include: in the service requesting network element When having access rights to the data corresponding to the data service task, the first access network device selects the first terminal device for performing the data service task from one or more second terminal devices based on the data service requirement information and the capability information. . This can achieve end-to-end (E2E) trusted service requirements for data.

The data corresponding to the data service task may be, for example, one or more of network data, user data, artificial intelligence model data, Internet of Things data, and the like. For example, when the data service task collects minimized drive test data for the first terminal device and reports it to the first access network device, the data corresponding to the data service task may be minimized drive test data. For another example, when the data service task can be that the first access network device sends global model data to the first terminal device, and the first terminal device trains a local federated learning model after receiving the global model data, the data corresponding to the data service task Can be global model data.

Optionally, the data service request may also include the identity of the service requesting network element. When the service requesting network element has access rights to the data corresponding to the data service task, the first access network device determines the request based on the data service requirement information and the capability information. , before selecting the first terminal device for performing the data service task from one or more second terminal devices, the method may further include: the first access network device sends an authorization request (authorization request) message to the trusted anchor point , the authorization request message includes the identity of the service requesting network element, and the authorization request message is used to request verification whether the service requesting network element has access rights to the data corresponding to the data service task; the first access network device receives the authorization sent by the trusted anchor point Response (authorization response) message. The authorization response message is used to indicate that the service requesting network element has access rights to the data corresponding to the data service task.

Optionally, the method further includes: the first access network device sending a system message to one or more second terminal devices; the system message is used to indicate that the first access network device supports data service capabilities. This enables one or more second terminal devices to learn that the first access network device supports data service capabilities. It should be understood that sending the system message from the first access network device to one or more second terminal devices may be performed before step 302. The system message may be, for example, system information block 1 (SIB1). For example, a new field in SIB1 is used to indicate that the first access network device supports data service capabilities.

For example, data service capabilities may include at least one of the following: supporting the type of logical link established with the terminal device, data collection capabilities, data preprocessing capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities. The type of logical link that is supported to be established with the terminal device may include, for example, one or more of a bidirectional logical link, a unidirectional downlink, a unidirectional uplink, and the like. It should be understood that the specific content included in the data service capabilities is not visible to the terminal device, and the terminal device does not care.

In this application, a logical link can be called a logical path, and can be understood as an air interface data plane bearer. The bidirectional logical link can be called a dedicated data plane bearer. For example, the access network device can deliver data to the terminal device through the bidirectional logical link, and the terminal device can also report data to the access network device through the bidirectional logical link. The unidirectional downlink can be called a multicast data plane bearer. For example, the access network device can deliver multicast data to one or more terminal devices through the unidirectional downlink, so that one or more terminal devices can The same multicast data is received. The unidirectional uplink can be called an aggregate data plane bearer. For example, one or more terminal devices can report data to the access network device through the unidirectional uplink.

For example, see FIG. 4 , which is a schematic diagram of a logical link established by an access network device and a terminal device according to an embodiment of the present application. In 4-1 of Figure 4, the type of logical link established between the access network device and any terminal device is a bidirectional logical link. In 4-2 of Figure 4, the type of logical link established by the access network device and multiple terminal devices is a unidirectional downlink logical link. In 4-3 of Figure 4, the type of logical link established between the access network device and any terminal device is a unidirectional uplink logical link.

Optionally, the method may also include step 303.

303. The first access network device sends a first message to the first terminal device based on the data service requirement information; the first message includes first configuration information, and the first configuration information includes the type of the first logical link, the first logical link The type is a bidirectional logical link, a unidirectional downlink or a unidirectional uplink. The first logical link is a logical link between the first node and the second node. The first logical link is used to transmit data services. Data corresponding to the task.

Correspondingly, the first terminal device receives the first message sent by the first access network device.

The first message may be, for example, a data service radio resource control reconfiguration (DS RRC reconfiguration) message, which can satisfy backward compatibility.

For example, the first message may be:

Among them, linkmode can represent the type of logical link.

Optionally, if the type of the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: a task that the first terminal device needs to perform, and a data protection algorithm used by the first access network device. , the data compression algorithm used by the first access network device, the interval between data transmission by the first access network device, the amount of data transmitted by the first access network device in a single time, the tasks that the first terminal device needs to perform, the first terminal The data protection algorithm used by the device, the data compression algorithm used by the first terminal device, the interval between data transmission by the first terminal device, the amount of data transmitted by the first terminal device in a single time, and the maximum data transmission amount by the first terminal device. , the minimum data transmission amount of a single transmission by the first terminal device. It can be seen that this achieves data security protection, data privacy protection, etc. At the same time, by issuing this information, the first terminal device can learn that the first access network device has performed data security protection, data privacy protection, etc., and also the first terminal device can learn the methods used for data security protection, data privacy protection, etc. related algorithms.

Wherein, the data protection algorithm used by the first access network device and the data protection algorithm used by the first terminal device may be the same or different, and the data compression algorithm used by the first access network device and the data compression algorithm used by the first terminal device may be Same or different. When the local data of the first terminal device reaches the minimum data transmission amount of a single transmission of the first terminal device, data transmission can be started. That is to say, the minimum data transmission amount of a single transmission of the first terminal device can be understood as starting data transmission. threshold.

It should be understood that before the first access network device sends data corresponding to the data service task to the first terminal device through the first logical link, the first access network device may, for example, use the data compression algorithm according to the first access network device. Compress the data generated by the first access network device, and then perform privacy protection on the compressed data according to the data protection algorithm used by the first access network device to obtain data corresponding to the data service task. After the first terminal device obtains the data corresponding to the data service task, for example, it can first perform privacy protection verification, decompress the data after the privacy protection verification, and then decompress the decompressed data (the decompressed data is the first Data generated by an access network device) are processed, such as field extraction, format conversion, redundant data removal, compression, fusion, etc. of the decompressed data.

Similarly, before the first terminal device sends data corresponding to the data service task to the first access network device through the first logical link, the first terminal device may, for example, compress the first terminal device according to the data compression algorithm used by the first terminal device. The generated data is compressed, and then privacy protection is performed on the compressed data according to the data protection algorithm used by the first terminal device to obtain data corresponding to the data service task. After the first access network device obtains the data corresponding to the data service task, for example, it can first perform privacy protection verification, decompress the data after the privacy protection verification, and then decompress the decompressed data (decompressed data (data generated by the first terminal device), such as field extraction, format conversion, redundant data removal, compression, fusion, etc. of the decompressed data.

Optionally, if the type of the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: tasks that the first terminal device needs to perform, and data protection used by the first access network device. algorithm, the data compression algorithm used by the first access network device, the interval for data transmission by the first access network device, and the amount of data transmitted by the first access network device in a single time. It can be seen that this achieves data security protection, data privacy protection, etc. At the same time, by delivering this information, the first terminal device can learn that the first access network device has implemented data security protection, data privacy protection, etc.

Optionally, if the type of the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: a task that the first terminal device needs to perform, a data protection algorithm used by the first terminal device, The data compression algorithm used by the first terminal device, the interval of data transmission by the first terminal device, the amount of data transmitted by the first terminal device in a single time, the maximum data transmission amount of data transmission by the first terminal device, the data transmission amount of the first terminal device in a single time Minimum amount of data transferred. It can be seen that this achieves data security protection, data privacy protection, etc. At the same time, by issuing this information, the first terminal device learns the relevant algorithms used for data security protection, data privacy protection, etc.

Wherein, the task that the first terminal device needs to perform is uniquely identified by the identifier of the data service task and the identifier of the sub-task of the data service task.

Exemplarily, the type of the first logical link is a bidirectional logical link. The first configuration information includes an identifier of the data service task and a data pipeline (data pipeline, DP) identifier (ID). The data channel identifier is used to indicate the data service task. subtasks. It should be understood that when there are multiple first terminal devices, the tasks that different terminal devices among the multiple first terminal devices need to perform may be the same or different, that is, the first access network device delivers the tasks to the multiple first terminal devices. The data channel identifiers of different terminal devices can be the same or different.

In another example, the type of the first logical link is a unidirectional downlink, and the first configuration information includes an identifier of the data service task and a multicast identifier, and the multicast identifier is used to indicate a sub-task of the data service task. It should be understood that when there are multiple first terminal devices, the tasks that different terminal devices among the multiple first terminal devices need to perform may be the same or different, that is, the first access network device delivers the tasks to the multiple first terminal devices. The multicast identifiers of different terminal devices can be the same or different. In a multicast scenario, multiple first terminal devices may also be called a group of terminal devices. In addition, after any first terminal device among the plurality of first terminal devices obtains the multicast identifier, it can monitor the corresponding air interface resource according to the multicast identifier.

In another example, the type of the first logical link is a unidirectional uplink, and the first configuration information includes an identifier of the data service task and a convergence identifier, and the convergence identifier is used to indicate a sub-task of the data service task. It should be understood that when there are multiple first terminal devices, the tasks that different terminal devices among the multiple first terminal devices need to perform may be the same or different, that is, the first access network device delivers the tasks to the multiple first terminal devices. The aggregation identifiers of different terminal devices can be the same or different.

Optionally, the method may also include step 304.

304. The first terminal device establishes the first logical link according to the type of the first logical link.

Optionally, the first terminal device may also send a response message to the first message to the first access network device, where the response message to the first message is used to indicate that the first terminal device has successfully established the first logical link. The response message of the first message may be, for example, a data service radio resource control reconfiguration complete (DS RRC reconfiguration complete) message.

It can be seen that the first access network device can send configuration information including the type of logical link to the first terminal device performing the data service task according to the data service requirement information, so that the first terminal device establishes the configuration information according to the type of the logical link. Logical links can meet data service requirements, and logical links are used to transmit data corresponding to data service tasks. This provides a transmission method for data corresponding to data service tasks that meets data service requirements. At the same time, because the logical link is used to transmit data corresponding to the data service task, it can reduce interference to the transmission of existing business data.

Optionally, if the type of the first logical link is a unidirectional downlink and the number of first terminal devices is multiple, the method further includes: the first access network device sends multicast data, and the multicast data is associated with multiple A first logical link corresponding to different terminal devices among the first terminal devices, and the multicast data is data corresponding to the data service task. It can be seen that because the multicast data sent by the first access network device can be associated with the first logical links corresponding to different terminal devices among the multiple first terminal devices, the first access network device will not send the multicast data to different nodes respectively. The same data saves downlink air interface resources, improves resource utilization, and allows different terminal devices to receive the same multicast data.

Optionally, after step 304, cell switching and call drop do not occur. For details, please refer to Example 1. Or, for the scenario where cell switching occurs, please refer to Example 2 for details. Or, because the first terminal device is in a weak coverage area or the first terminal device is interfered with, resulting in a call drop, call reestablishment needs to be initiated. For details, please refer to Example 3.

Example 1

Optionally, the method further includes: if the data corresponding to the data service task is transmitted on the first logical link, the first access network device sends a second message to the first terminal device. Correspondingly, the first terminal device receives the second message sent by the first access network device. The second message is used to instruct the first terminal device to delete the first logical link. It can be seen that when the data corresponding to the data service task is transmitted on the first logical link, the first terminal device can be notified to delete the first logical link, which reduces the time consumed by the first terminal device when maintaining the first logical link. power, saving energy consumption.

It should be noted that when the type of the first logical link is a bidirectional logical link, the end of transmission of the data corresponding to the data service task on the first logical link can be understood as at least one of the following: from the first access network The data corresponding to the data service task of the device is transmitted on the first logical link, and the data corresponding to the data service task from the first terminal device is transmitted on the first logical link. When the type of the first logical link is a unidirectional downlink logical link, the end of transmission of the data corresponding to the data service task on the first logical link can be understood as: the corresponding data service task from the first access network device The data transmission ends on the first logical link. When the type of the first logical link is a unidirectional uplink logical link, the end of transmission of data corresponding to the data service task on the first logical link can be understood as: data corresponding to the data service task from the first terminal device The transmission ends on the first logical link.

Optionally, the second message may also be used to instruct the first terminal device to delete the first configuration information.

The second message may be, for example, a data service radio resource control reconfiguration message. It should be understood that after the first terminal device deletes the first logical link, the first terminal device may also send a response message of the second message to the first access network device, and accordingly, the first access network device may receive the second message. A response message to the second message sent by a terminal device. The response message of the second message is used to indicate that the first terminal device has successfully deleted the first logical link. The response message to the second message may be, for example, a data service radio resource control reconfiguration complete message.

Example 2

In a possible implementation, the method further includes: if the first access network device determines that the cell after the first terminal device performs cell switching is the first cell of the first access network device, the first access network device The first terminal device sends a third message, and the third message is also used to instruct the first terminal device to retain the first configuration information. It can be seen that when the cell after the first terminal device performs cell switching is the first cell of the first access network device, the first terminal device can be notified to retain the first configuration information, so that the first access network device does not need to report to the first cell again. The first access network device sends first configuration information. That is to say, when the first terminal device is in the same base station before and after switching, the data service context information (such as the first configuration information) does not need to be transmitted, thus ensuring the continuity of data services.

The third message may be, for example, a handover command. For example, a new information element in the handover command is used to instruct the first terminal device to retain the first configuration information.

It should be noted that after the first terminal device receives the third message sent by the first access network device, the first terminal device can establish the first logical link under the first cell according to the type of the first logical link in the first configuration information. The first terminal device can also transmit remaining data corresponding to the data service task with the first access network device through the first logical link. This ensures the continuity of data services.

It should be understood that before the first terminal device transmits the remaining data corresponding to the data service task with the first access network device through the first logical link, the first terminal device may initiate random access. When the first terminal device successfully accesses In the first cell, a message indicating successful cell handover may be sent to the first access network device. The message may be, for example, a radio resource control reconfiguration complete (RRC reconfiguration complete) message. After the remaining data corresponding to the data service task is transmitted on the first logical link, the first terminal device can delete the first logical link, the first configuration information, and so on.

In another possible implementation, the method further includes: if the first access network device determines that the cell after the first terminal device performs cell switching is the cell of the second access network device, the first access network device sends a message to the second access network device. A terminal device sends a fourth message, and correspondingly, the first terminal device receives the fourth message sent by the first access network device. The fourth message is used to instruct the first terminal device to delete the first logical link. It can be seen that when the first access network device determines that the cell after the first terminal device performs cell switching is not the cell of the first access network device, the first access network device may notify the first terminal device to delete the first logical link. path, which reduces the power consumed by the first terminal device when maintaining the first logical link and saves energy consumption. That is to say, when the first terminal device is in different base stations before and after switching, because migrating individual data to the new base station cannot meet the overall requirements, the data service of the first terminal device is terminated, that is, the first terminal device is notified to delete the first terminal device. logical link.

The fourth message may also be used to instruct the first terminal device to delete the first configuration information, and the fourth message may be, for example, a handover command.

It should be understood that the first access network device is the access network device before the first terminal device performs cell switching, which may be called the source access network device, and the second access network device is the access network device after the first terminal device performs cell switching. Access network equipment can be called target access network equipment.

Optionally, after the first terminal device receives the fourth message sent by the first access network device, the first terminal device may initiate random access. When the first terminal device successfully accesses the cell of the second access network device, A message indicating successful cell handover may be sent to the second access network device. The message may be, for example, a radio resource control reconfiguration complete (RRC reconfiguration complete) message. At this time, the first terminal device does not establish a logical link with the second access network device. That is to say, after the first terminal device accesses the cell of the new base station, no logical link is established.

Optionally, when the first access network device determines that the cell after the first terminal device performs cell switching is the cell of the second access network device, the method further includes: if the third cell currently used to perform the data service task The number of a terminal device is less than the first number, and the first access network device reselects a terminal device for performing the data service task based on the data service requirement information. The first number is determined by the first access network device based on the data service requirement information. quantity. It can be seen that when the number of first terminal devices currently used to perform data service tasks is less than the first number, the first access network device can reselect a new terminal device to perform the data service tasks, ensuring the execution of the data service tasks. The number of terminal devices always meets the number determined based on the data service demand information.

Example three

In a possible implementation, the method further includes: if the first access network device determines that the cell selected by the first terminal device after call reestablishment is the second cell of the first access network device, the first access network device Resend the first message to the first terminal device. It can be seen that when the first access network device determines that the cell selected by the first terminal device after call reestablishment is the second cell of the first access network device, the first access network device re-sends the second cell to the first terminal device. This message allows the first terminal device to establish the first logical link under the new cell, and then transmit the data corresponding to the data service task on the first logical link under the new cell, thus ensuring the continuity of the data service.

It should be noted that after the first terminal device re-receives the first message sent by the first access network device, the first terminal device can establish the first logical link in the second cell according to the type of the first logical link in the first message. The logical link may also transmit remaining data corresponding to the data service task with the first access network device through the first logical link. This ensures the continuity of data services.

Optionally, the first terminal device can establish the first logical link in the second cell according to the type of the first logical link in the first message, and then the first terminal device can also re-send the message to the first access network device. The response message to the first message.

It should be understood that before the first terminal device transmits the remaining data corresponding to the data service task with the first access network device through the first logical link, the first terminal device may also complete a connection reestablishment process with the first access network device. Exemplarily, the first terminal device sends a radio resource control reestablishment request (RRC reestablishment request) message to the first access network device, and the radio resource control reestablishment request message is used to request access to the second cell. After receiving the radio resource control reestablishment request message, the first access network device may send a radio resource control reestablishment response (RRC reestablishment response) message to the first terminal device. The radio resource control reestablishment response message is used to indicate that the first terminal device is allowed to access. Enter the second community. After the first terminal device receives the radio resource control reestablishment response message, the first terminal device may also send a radio resource control reestablishment complete (RRC reestablishment complete) message to the first access network device, and the radio resource control reestablishment complete message is used to indicate the third A terminal device successfully accesses the second cell.

Optionally, after the remaining data corresponding to the data service task is transmitted on the first logical link, the first terminal device can delete the first logical link, the first configuration information, and so on.

In another possible implementation, the method further includes: if the first access network device determines that the cell selected by the first terminal device after call reestablishment is a cell of the third access network device and is currently used to perform data services The number of first terminal devices for the task is less than the second number. The first access network device reselects the terminal device for performing the data service task according to the data service requirement information. The first number is the first terminal device for performing the data service task according to the data service requirement. Information determines the quantity. It can be seen that, after the first access network device determines that the cell selected after the first terminal device performs call reestablishment is not the cell of the first access network device, and the number of first terminal devices currently used to perform data service tasks is less than the first terminal device. When the number is 2, the first access network device can reselect a new terminal device to perform the data service task, ensuring that the number of nodes performing the data service task always meets the number determined based on the data service requirement information.

Optionally, when the cell that the first terminal device accesses after performing call reestablishment is the cell of the third access network device, the first terminal device does not establish a logical link with the third access network device, that is to say , after the first terminal device accesses the cell of the new base station, it does not establish a logical link under the cell of the new base station. Of course, the third access network device will not send the first message. The first terminal device may also complete a connection reestablishment process with the third access network device, and the specific process will not be described again.

It should be understood that the first access network device is the access network device before the first terminal device performs call reestablishment, which may be called the source access network device, and the third access network device is the first terminal device after the call reestablishment is performed. Access network equipment can be called target access network equipment.

The above mainly introduces the solution provided by this application from the perspective of interaction between various devices. It can be understood that, in order to realize the above functions, the above-mentioned implementation devices include corresponding hardware structures and/or software modules for executing each function. Persons skilled in the art should easily realize that, with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Embodiments of the present application can divide access network equipment or terminal equipment into functional modules according to the above method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. , the above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods.

In the case of using an integrated module, see FIG. 5 , which is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device 500 can be applied to the method shown in FIG. 3 . As shown in FIG. 5 , the communication device 500 includes: a processing module 501 and a transceiver module 502 . The processing module 501 may be one or more processors, and the transceiver module 502 may be a transceiver or a communication interface. The communication device can be used to implement functions involving terminal equipment or access network equipment in any of the above method embodiments, or to implement functions involving network elements in any of the above method embodiments. The network element or network function can be a network element in a hardware device, a software function running on dedicated hardware, or a virtualized function instantiated on a platform (eg, cloud platform). Optionally, the communication device 500 may also include a storage module 503 for storing program codes and data of the communication device 500 .

In one example, when the communication device serves as the first access network device or is a chip applied in the first access network device, and performs the steps performed by the first access network device in the above method embodiment. The transceiver module 502 is used to support communication with a terminal device (such as a first terminal device, a second terminal device, etc.). The transceiver module specifically performs the sending and/or receiving performed by the first access network device in Figure 3. Actions, such as supporting the first access network device to perform other processes of the technology described herein. The processing module 501 may be used to support the communication device 500 to perform the processing actions in the above method embodiments, for example, to support the first access network device to perform one or more steps such as step 301, step 302, and/or the technology described herein. other processes.

Optionally, the transceiver module 502 is used to obtain data service requirement information; the processing module 501 is used to select the first terminal device for performing the data service task according to the data service requirement information; the transceiver module 502 is also used to The service requirement information sends a first message to the first terminal device; the first message includes first configuration information, the first configuration information includes the type of the first logical link, and the type of the first logical link is a bidirectional logical link or a unidirectional link. Downlink or unidirectional uplink, the first logical link is a logical link between the first access network device and the first terminal device, and the first logical link is used to transmit data corresponding to the data service task.

Optionally, the transceiver module 502 is also used to receive capability information sent by one or more second terminal devices; the capability information is used to indicate that one or more second terminal devices support at least one of the following: data collection capability, data preset processing capability, data reporting capability, data analysis capability, data protection capability, data compression capability; when selecting the first terminal device for performing data service tasks according to the data service requirement information, the processing module 501 is used for the first access The network device selects a first terminal device from one or more second terminal devices according to the data service requirement information and capability information.

Optionally, the data reporting capability includes at least one of the following: reported data type, data transmission interval, data amount for a single transmission, maximum data transmission amount, and minimum data transmission amount for a single transmission.

Optionally, the transceiver module 502 is also configured to send a system message to one or more second terminal devices; wherein the system message is used to indicate that the first access network device supports data service capabilities.

Optionally, if the type of the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: a task that the first terminal device needs to perform, and a data protection algorithm used by the first access network device. , the data compression algorithm used by the first access network device, the interval between data transmission by the first access network device, the amount of data transmitted by the first access network device in a single time, the tasks that the first terminal device needs to perform, the first terminal The data protection algorithm used by the device, the data compression algorithm used by the first terminal device, the interval between data transmission by the first terminal device, the amount of data transmitted by the first terminal device in a single time, and the maximum data transmission amount by the first terminal device. , the minimum data transmission amount of a single transmission by the first terminal device.

Optionally, if the type of the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: tasks that the first terminal device needs to perform, and data protection used by the first access network device. algorithm, the data compression algorithm used by the first access network device, the interval for data transmission by the first access network device, and the amount of data transmitted by the first access network device in a single time.

Optionally, if the type of the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: a task that the first terminal device needs to perform, a data protection algorithm used by the first terminal device, The data compression algorithm used by the first terminal device, the interval of data transmission by the first terminal device, the amount of data transmitted by the first terminal device in a single time, the maximum data transmission amount of data transmission by the first terminal device, the data transmission amount of the first terminal device in a single time Minimum amount of data transferred.

Optionally, the task that the first terminal device needs to perform is uniquely identified by the identifier of the data service task and the identifier of the sub-task of the data service task.

Optionally, if the type of the first logical link is a unidirectional downlink and the number of first terminal devices is multiple, the transceiver module 502 is also used to send multicast data, and the multicast data is associated with multiple first terminals. The first logical link corresponding to different nodes in the device, and the multicast data is the data corresponding to the data service task.

Optionally, the transceiver module 502 is also configured to: if the data corresponding to the data service task is transmitted on the first logical link, the first access network device sends a second message to the first terminal device, and the second message is used to Instruct the first terminal device to delete the first logical link.

Optionally, the transceiver module 502 is also configured to: if the first access network device determines that the cell after the first terminal device performs cell switching is the first cell of the first access network device, the first access network device sends a message to the first cell of the first access network device. A terminal device sends a third message, and the third message is also used to instruct the first terminal device to retain the first configuration information.

Optionally, the transceiver module 502 is also configured to: if the first access network device determines that the cell after the first terminal device performs cell switching is the cell of the second access network device, the first access network device sends a message to the first terminal device. The device sends a fourth message, and the fourth message is used to instruct the first terminal device to delete the first logical link.

Optionally, the processing module 501 is also configured to: if the number of first terminal devices currently used to perform data service tasks is less than the first number, the first access network device reselects the first terminal device for performing data services according to the data service requirement information. The first number of task nodes is the number determined by the first access network device based on the data service requirement information.

Optionally, the transceiver module 502 is also configured to: if the first access network device determines that the cell selected by the first terminal device after call reestablishment is the second cell of the first access network device, the first access network device re- Send the first message to the first terminal device.

Optionally, the processing module 501 is also configured to: if the first access network device determines that the cell selected by the first terminal device after call reestablishment is the cell of the third access network device, and the cell currently used to perform data service tasks The number of first terminal devices is less than the second number. The first access network device reselects nodes for performing data service tasks based on the data service requirement information. The first number is determined by the first access network device based on the data service requirement information. quantity.

In another example, when the communication device serves as a first terminal device or is a chip applied in the first terminal device, and performs the steps performed by the first terminal device in the above method embodiment. The transceiver module 502 is used to support communication with access network equipment (such as a first access network device, a second access network device, a third access device, etc.), etc. The transceiver module specifically executes the first step in Figure 3. The sending and/or receiving actions performed by the terminal device, for example, support the first terminal device to perform other processes of the technology described herein. The processing module 501 may be used to support the communication device 500 to perform the processing actions in the above method embodiments, for example, to support the first terminal device to perform step 304, and/or other processes of the technology described herein.

The transceiver module 502 is configured to receive a first message from the first access network device; the first message includes first configuration information, the first configuration information includes the type of the first logical link, and the type of the first logical link is bidirectional logic. link, a unidirectional downlink or a unidirectional uplink, the first logical link is a logical link between the first access network device and the first terminal device, and the first logical link is used to transmit data service tasks The corresponding data processing module 501 is used to establish the first logical link according to the type of the first logical link.

Optionally, the transceiving module 502 is also used to send the capability information of the first terminal device to the first access network device; the capability information of the first terminal device is used to indicate that the first terminal device supports at least one of the following: data collection. capabilities, data preprocessing capabilities, data reporting capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities.

Optionally, the transceiving module 502 is also configured to receive a system message sent by the first access network device; wherein the system message is used to indicate that the first access network device supports data service capabilities.

Optionally, if the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: a task that the first terminal device needs to perform, a data protection algorithm used by the first access network device, The data compression algorithm used by the first access network device, the interval between data transmission by the first access network device, the amount of data transmitted by the first access network device in a single time, the tasks that the first terminal device needs to perform, and the use of the first terminal device The data protection algorithm, the data compression algorithm used by the first terminal device, the interval of data transmission by the first terminal device, the amount of data transmitted by the first terminal device in a single time, the maximum data transmission amount of data transmission by the first terminal device, the third The minimum data transmission amount for a single transmission by a terminal device.

Optionally, if the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: a task that the first terminal device needs to perform, a data protection algorithm used by the first access network device, The data compression algorithm used by the first access network device, the interval for data transmission by the first access network device, and the amount of data transmitted by the first access network device in a single time.

Optionally, if the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: the task that the first terminal device needs to perform, the data protection algorithm used by the first terminal device, the first The data compression algorithm used by the terminal device, the interval between data transmission by the first terminal device, the amount of data transmitted by the first terminal device in a single time, the maximum data transmission amount by the first terminal device in data transmission, the number of data transmitted by the first terminal device in a single time Minimum data transfer amount.

Optionally, the transceiving module 502 is also configured to receive a second message sent by the first access network device, where the second message is used to instruct the first terminal device to delete the first logical link.

Optionally, the cell after the first terminal device performs cell switching is the first cell of the first access network device. The transceiver module 502 is also used to receive the third message sent by the first access network device. The third message is Instructing the first terminal device to retain the first configuration information; the processing module 501 is also used to establish the first logical link under the first cell according to the type of the first logical link in the first configuration information; the transceiving module 502 is also configured to Used to transmit remaining data corresponding to the data service task with the first access network device through the first logical link.

Optionally, the cell after the first terminal device performs cell switching is the cell of the second access network device. The transceiver module 502 is also configured to receive a fourth message sent by the first access network device. The fourth message is used to indicate The first terminal device deletes the first logical link.

Optionally, the processing module 501 is also configured not to establish a logical link with the second access network device.

Optionally, the cell selected by the first terminal device after call reestablishment is the second cell of the first access network device. The transceiver module 502 is also configured to re-receive the first message sent by the first access network device; the processing module 501 is also used to establish the first logical link in the second cell according to the type of the first logical link in the first message; the transceiver module 502 is also used to communicate with the first access network device through the first logical link. Transfer the remaining data corresponding to the data service task.

Optionally, the cell selected by the first terminal device after call reestablishment is the cell of the third access network device. The processing module 501 is also configured not to establish a logical link with the third access network device.

In a possible implementation, when the terminal device or the access network device is a chip, the transceiver module 502 may be a communication interface, a pin or a circuit, etc. The communication interface can be used to input data to be processed to the processor, and can output the processing results of the processor to the outside. In specific implementation, the communication interface can be a general purpose input output (GPIO) interface, which can communicate with multiple peripheral devices (such as display (LCD), camera (camara), radio frequency (RF) module, antenna, etc. etc.) connection. The communication interface is connected to the processor through a bus.

The processing module 501 may be a processor, and the processor may execute computer execution instructions stored in the storage module, so that the chip executes the method involved in the embodiment of FIG. 3 .

Further, the processor may include a controller, arithmetic unit, and a register. For example, the controller is mainly responsible for decoding instructions and sending control signals for operations corresponding to the instructions. The arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations. It can also perform address operations and conversions. Registers are mainly responsible for storing register operands and intermediate operation results temporarily stored during instruction execution. In specific implementation, the hardware architecture of the processor can be application specific integrated circuits (ASIC) architecture, microprocessor without interlocked piped stages architecture (MIPS) architecture, advanced reduced instructions Set machine (advanced RISC machines, ARM) architecture or network processor (network processor, NP) architecture, etc. The processor can be single-core or multi-core.

The storage module can be a storage module within the chip, such as a register, cache, etc. The storage module can also be a storage module located outside the chip, such as Read Only Memory (ROM) or other types of static storage devices that can store static information and instructions, Random Access Memory (Random Access Memory, RAM), etc. .

It should be noted that the corresponding functions of the processor and the interface can be realized through hardware design, software design, or a combination of software and hardware. There are no restrictions here.

Figure 6 is a schematic structural diagram of a simplified terminal device provided by an embodiment of the present application. For ease of understanding and illustration, in Figure 6, the terminal device takes a mobile phone as an example. As shown in Figure 6, the terminal device includes at least one processor, and may also include a radio frequency circuit, an antenna, and an input and output device. Among them, the processor can be used to process communication protocols and communication data, and can also be used to control terminal devices, execute software programs, process data of software programs, etc. The terminal device may also include a memory, which is mainly used to store software programs and data. These related programs can be loaded into the memory when the communication device leaves the factory, or can be loaded into the memory when needed later. Radio frequency circuits are mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves, and the antenna is the antenna provided in the embodiment of the present application. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 6 . In an actual terminal device product, there may be one or more processors and one or more memories. Memory can also be called storage media or storage devices. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiment of the present application, the antenna and the radio frequency circuit with the transceiver function can be regarded as the receiving unit and the transmitting unit of the terminal device (which can also be collectively referred to as the transceiver unit), and the processor with the processing function can be regarded as the processing unit of the terminal device. . As shown in FIG. 6 , the terminal device includes a receiving module 31 , a processing module 32 and a sending module 33 . The receiving module 31 may also be called a receiver, a receiver, a receiving circuit, etc., and the sending module 33 may also be called a transmitter, a transmitter, a transmitter, a transmitting circuit, etc. The processing module 32 may also be called a processor, a processing board, a processing device, etc.

For example, the processing module 32 is used to perform the functions of the terminal device in the embodiment shown in FIG. 3 .

Figure 7 is a schematic structural diagram of a simplified access network device provided by an embodiment of the present application. The access network equipment includes a radio frequency signal transceiver and conversion part and a baseband part 42. The radio frequency signal transceiver and conversion part further includes a receiving module 41 part and a transmitting module 43 part (which may also be collectively referred to as a transceiver module). The radio frequency signal transceiving and conversion part is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals; the baseband part 42 is mainly used for baseband processing, controlling access network equipment, etc. The receiving module 41 may also be called a receiver, a receiver, a receiving circuit, etc., and the sending module 43 may also be called a transmitter, a transmitter, a transmitter, a transmitting circuit, etc. The baseband part 42 is usually the control center of the access network equipment, which can also be called a processing module, and is used to perform the steps performed by the access network equipment in FIG. 3 above. For details, please refer to the descriptions in the relevant sections above.

The baseband part 42 may include one or more single boards. Each single board may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and docking. Control of network access equipment. If there are multiple boards, each board can be interconnected to increase processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processors at the same time. device.

For example, the sending module 43 is used to perform the functions of the access network device in the embodiment shown in FIG. 3 .

An embodiment of the present application also provides a communication device, including a processor. The processor calls a computer program stored in a memory to implement any one of the methods in Figure 3 .

Embodiments of the present application also provide a communication device, including a logic circuit and an input and output interface. The logic circuit is used to read and execute stored instructions. When the instructions are executed, the communication device executes any one of the instructions in Figure 3. method described.

Embodiments of the present application also provide a computer-readable storage medium. A computer program is stored in the computer-readable storage medium. When the computer program is run, the method described in any one of Figure 3 is implemented.

An embodiment of the present application also provides a computer program product containing instructions that, when executed on a computer, causes the method described in any one of Figure 3 to be executed.

When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of this application can be realized in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted over a computer-readable storage medium. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. Available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, DVD), or semiconductor media (eg, solid state disk (SSD)), etc.

The steps in the method embodiments of this application can be sequence adjusted, combined, and deleted according to actual needs.

Modules in the device embodiments of the present application can be merged, divided, and deleted according to actual needs.

Claims

A communication method, characterized by including:

The first node obtains data service requirement information;

The first node selects a second node for performing the data service task according to the data service requirement information;

The first node sends a first message to the second node based on the data service requirement information; the first message includes first configuration information, and the first configuration information includes the type of the first logical link, so The type of the first logical link is a bidirectional logical link, a unidirectional downlink or a unidirectional uplink, and the first logical link is a logical link between the first node and the second node. The first logical link is used to transmit data corresponding to the data service task.
The method of claim 1, further comprising:

The first node receives capability information sent by one or more third nodes; the capability information is used to indicate that the one or more third nodes support at least one of the following: data collection capability, data preprocessing capability, data Reporting capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities;

The first node selects a second node for performing data service tasks based on the data service requirement information, including:

The first node selects the second node from the one or more third nodes based on the data service requirement information and the capability information.
The method of claim 2, further comprising:

The first node sends a system message to the one or more third nodes; wherein the system message is used to indicate that the first node supports data service capabilities.
The method according to any one of claims 1-3, characterized in that, if the type of the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: the The tasks that the second node needs to perform, the data protection algorithm used by the first node, the data compression algorithm used by the first node, the interval between data transmission by the first node, the number of single transmissions by the first node The amount of data, the tasks that the second node needs to perform, the data protection algorithm used by the second node, the data compression algorithm used by the second node, the interval between data transmission by the second node, the second The amount of data transmitted by a node in a single time, the maximum data transmission amount of the second node in data transmission, and the minimum data transmission amount of the second node in a single transmission.
The method according to any one of claims 1-3, characterized in that, if the type of the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: The tasks that the second node needs to perform, the data protection algorithm used by the first node, the data compression algorithm used by the first node, the interval between data transmission by the first node, and the single transmission by the first node amount of data.
The method according to any one of claims 1-3, characterized in that, if the type of the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: The tasks that the second node needs to perform, the data protection algorithm used by the second node, the data compression algorithm used by the second node, the interval between data transmission by the second node, and the single transmission by the second node The amount of data, the maximum data transmission amount of the second node for data transmission, and the minimum data transmission amount of the second node for a single transmission.
The method according to any one of claims 1 to 6, characterized in that if the type of the first logical link is a unidirectional downlink and the number of the second nodes is multiple, the method further include:

The first node sends multicast data, the multicast data is associated with the first logical links corresponding to different nodes among the plurality of second nodes, and the multicast data is data corresponding to the data service task.
The method according to any one of claims 1-7, characterized in that the method further includes:

If the data corresponding to the data service task is transmitted on the first logical link, the first node sends a second message to the second node, and the second message is used to instruct the second node Delete the first logical link.
The method according to any one of claims 1-7, characterized in that the method further includes:

If the first node determines that the cell after the second node performs cell switching is the first cell of the first node, the first node sends a third message to the second node, and the third message It is also used to instruct the second node to retain the first configuration information.
The method according to any one of claims 1-7, characterized in that the method further includes:

If the first node determines that the cell after the second node performs cell switching is the fourth node's cell, the first node sends a fourth message to the second node, and the fourth message is used to indicate that the cell is the fourth node's cell. The second node deletes the first logical link.
The method of claim 10, further comprising:

If the number of the second nodes currently used to perform the data service task is less than the first number, the first node reselects the node used to perform the data service task according to the data service requirement information, and the first node The quantity is the quantity determined by the first node based on the data service requirement information.
The method according to any one of claims 1-7, characterized in that the method further includes:

If the first node determines that the cell selected by the second node after call reestablishment is the second cell of the first node, the first node re-sends the first message to the second node.
The method of claim 12, further comprising:

If the first node determines that the cell selected by the second node after call reestablishment is the cell of the fifth node, and the number of the second nodes currently used to perform the data service task is less than the second number, then The first node reselects nodes for performing the data service task according to the data service requirement information, and the first number is a number determined by the first node according to the data service requirement information.
A communication method, characterized by including:

The second node receives the first message sent by the first node; the first message includes first configuration information, the first configuration information includes the type of the first logical link, and the type of the first logical link is bidirectional. A logical link, a unidirectional downlink or a unidirectional uplink. The first logical link is a logical link between the first node and the second node. The first logical link is For transmitting data corresponding to the data service task;

The second node establishes the first logical link according to the type of the first logical link.
The method of claim 14, further comprising:

The capability information of the second node sent by the second node to the first node; the capability information of the second node is used to indicate that the second node supports at least one of the following: data collection capability, data pre-processing Processing capabilities, data reporting capabilities, data analysis capabilities, data protection capabilities, and data compression capabilities.
The method according to claim 14 or 15, characterized in that the method further includes:

The second node receives the system message sent by the first node;

Wherein, the system message is used to indicate that the first node supports data service capabilities.
The method according to any one of claims 14-16, characterized in that, if the type of the first logical link is a bidirectional logical link, the first configuration information is used to indicate at least one of the following: the The tasks that the second node needs to perform, the data protection algorithm used by the first node, the data compression algorithm used by the first node, the interval between data transmission by the first node, the number of single transmissions by the first node The amount of data, the tasks that the second node needs to perform, the data protection algorithm used by the second node, the data compression algorithm used by the second node, the interval between data transmission by the second node, the second The amount of data transmitted by a node in a single time, the maximum data transmission amount of the second node in data transmission, and the minimum data transmission amount of the second node in a single transmission.
The method according to any one of claims 14-16, characterized in that, if the type of the first logical link is a unidirectional downlink, the first configuration information is used to indicate at least one of the following: The tasks that the second node needs to perform, the data protection algorithm used by the first node, the data compression algorithm used by the first node, the interval between data transmission by the first node, and the single transmission by the first node amount of data.
The method according to any one of claims 14-16, characterized in that, if the type of the first logical link is a unidirectional uplink, the first configuration information is used to indicate at least one of the following: The tasks that the second node needs to perform, the data protection algorithm used by the second node, the data compression algorithm used by the second node, the interval between data transmission by the second node, and the single transmission by the second node The amount of data, the maximum data transmission amount of the second node for data transmission, and the minimum data transmission amount of the second node for a single transmission.
The method according to any one of claims 17 to 19, characterized in that the task that the second node needs to perform is uniquely identified by the identifier of the data service task and the identifier of the sub-task of the data service task.
The method according to any one of claims 14-20, characterized in that the method further includes:

The second node receives a second message sent by the first node, and the second message is used to instruct the second node to delete the first logical link.
The method according to any one of claims 14 to 20, characterized in that the cell after the second node performs cell switching is the first cell of the first node, and the method further includes:

The second node receives a third message sent by the first node, where the third message is used to instruct the second node to retain the first configuration information;

The second node establishes the first logical link under the first cell according to the type of the first logical link in the first configuration information;

The second node transmits the remaining data corresponding to the data service task with the first node through the first logical link.
The method according to any one of claims 14 to 20, characterized in that the cell after the second node performs cell switching is the cell of the fourth node, and the method further includes:

The second node receives a fourth message sent by the first node, where the fourth message is used to instruct the second node to delete the first logical link.
The method according to any one of claims 14 to 20, characterized in that the cell selected by the second node after call reestablishment is the second cell of the first node, and the method further includes:

The second node re-receives the first message sent by the first node;

The second node establishes the first logical link under the second cell according to the type of the first logical link in the first message;

The second node transmits the remaining data corresponding to the data service task with the first node through the first logical link.
A communication device, characterized in that the communication device includes a unit or module for executing the method according to any one of claims 1-24.
A communication device, characterized by comprising a processor that calls a computer program stored in a memory to implement the method according to any one of claims 1-24.
A communication device, characterized in that it includes a logic circuit and an input and output interface, the logic circuit is used to read and execute stored instructions, and when the instructions are executed, the communication device executes the instructions as claimed in claim 1- The method described in any one of 24.
A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium. When the computer program is run, the method according to any one of claims 1-24 is implemented.
A computer program product containing instructions that, when executed on a computer, causes the method of any one of claims 1-24 to be executed.
A communication system, characterized in that it includes a first node for performing the method according to any one of claims 1-13 and a second node for performing the method according to any one of claims 14-24. node.