CN115551084A

CN115551084A - Communication method, communication device and communication system

Info

Publication number: CN115551084A
Application number: CN202110734278.1A
Authority: CN
Inventors: 朱***; 周凯; 丁辉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-12-30
Also published as: WO2023273745A1

Abstract

The application provides a communication method, a communication device and a communication system. The method comprises the following steps: receiving a first pre-scheduling parameter set from an application function network element and 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set; receiving a data packet of a target service from a terminal, wherein the data packet comprises QFI; determining a first 5QI corresponding to QFI; determining a pre-scheduling parameter set corresponding to the first 5QI from the second pre-scheduling parameter set; the second set of pre-scheduled parameters comprises the first set of pre-scheduled parameters; and pre-scheduling the uplink resource of the terminal according to the pre-scheduling parameter set corresponding to the first 5QI. Because the base station is configured with a plurality of pre-scheduling parameter sets, the base station can pre-schedule the uplink resource of the terminal according to the pre-scheduling parameter sets, so that the time for the terminal to obtain the uplink resource is reduced, and the communication efficiency of the terminal is improved. And the pre-scheduling parameter set can be dynamically configured or adjusted according to actual needs, which is beneficial to accurately allocating corresponding resources to the terminal.

Description

Communication method, communication device and communication system

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a communication method, a communication apparatus, and a communication system.

Background

At present, a New Radio (NR) system adopts shared channel transmission, time-frequency resources are dynamically shared among terminals, and a base station realizes allocation of the time-frequency resources of uplink and downlink links through scheduling characteristics, so that the system throughput and user resource fairness can be ensured, and the system capacity and network performance can be improved. The scheduling features include the following basic functions: priority calculation, modulation and Coding Scheme (MCS) selection, resource allocation, and the like.

In conventional uplink Scheduling, a terminal periodically transmits a Scheduling Request (SR) for requesting a time-frequency resource, and according to a protocol, a period for transmitting the Scheduling Request may be relatively long, for example, as long as 80 milliseconds (ms) at most. Therefore, in the worst case, if there is uplink data transmission, the terminal needs to wait for a longer time to transmit the scheduling request, which results in an increase of uplink delay.

How to reduce the time delay of the terminal for requesting to obtain the time-frequency resource of the uplink scheduling does not have a good method at present.

Disclosure of Invention

The application provides a communication method, a communication device and a communication system, which are used for reducing the time delay of a terminal for requesting to obtain a time-frequency resource of uplink scheduling, thereby improving the communication efficiency.

In a first aspect, embodiments of the present application provide a wireless communication method, which may be performed by an access network device or a module (e.g., a chip) applied in the access network device. The method comprises the following steps: receiving a first pre-scheduling parameter set from an application function network element and 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set; receiving a data packet of a target service from a terminal, wherein the data packet comprises QFI; determining a first 5QI corresponding to the QFI; determining a prescheduling parameter set corresponding to the first 5QI from a second prescheduling parameter set; wherein the second set of pre-scheduling parameters comprises the first set of pre-scheduling parameters; and pre-scheduling the uplink resource of the terminal according to the pre-scheduling parameter set corresponding to the first 5QI.

According to the scheme, because the base station is configured with the plurality of pre-scheduling parameter sets, the base station can perform pre-scheduling on the uplink resource of the terminal according to the pre-scheduling parameter sets, so that the time for the terminal to obtain the uplink resource is reduced, and the communication efficiency of the terminal can be improved. In addition, since the AF configures one or more pre-scheduling parameter sets for the base station, the pre-scheduling parameter sets can be dynamically configured or adjusted according to actual needs, which is beneficial to accurately allocating corresponding resources to the terminal.

In a possible implementation method, receiving the QFI from a session management network element and a QoS configuration corresponding to the QFI, where the QoS configuration includes the first 5QI; and determining the first 5QI according to the QFI and the QoS configuration corresponding to the QFI.

According to the scheme, the base station can determine the 5QI corresponding to the QFI, so as to provide a basis for subsequently determining the pre-scheduling parameter set.

In a possible implementation, the second set of pre-scheduled parameters further comprises a default set of pre-scheduled parameters.

According to the scheme, on one hand, the base station can be configured with the pre-scheduling parameter set, and on the other hand, the base station also has the default pre-scheduling parameter set, so that the base station can be ensured to have at least the default pre-scheduling parameter set available, the pre-scheduling of the uplink resource for the terminal is facilitated, and the time delay of the terminal for acquiring the resource is reduced.

In a possible implementation method, a third pre-scheduling parameter set from the application function network element is received; updating a default pre-scheduling parameter set according to the third pre-scheduling parameter set to obtain a fourth pre-scheduling parameter set; wherein the second set of pre-scheduling parameters further comprises the fourth set of pre-scheduling parameters.

According to the scheme, the base station can update the default pre-scheduling parameter set to obtain a new pre-scheduling parameter set, and the dynamic adjustment of the pre-scheduling parameter set is facilitated.

In a possible implementation method, the default pre-scheduling parameter set includes a first pre-scheduling maximum number of users and a first scheduling data amount; any one of the third pre-scheduling parameter sets comprises a second pre-scheduling maximum user number and a second scheduling data total amount; the default pre-scheduling parameter set and the any pre-scheduling parameter set contain the same pre-scheduling minimum interval period; and updating the first maximum pre-scheduled user number and the first total scheduled data amount in the default pre-scheduled parameter set according to the second maximum pre-scheduled user number and the second total scheduled data amount to obtain a pre-scheduled parameter set in the fourth pre-scheduled parameter set.

In one possible implementation, a pre-scheduling parameter set contains one or more of the following information: pre-scheduling a minimum interval period, pre-scheduling a maximum number of users, and scheduling a total amount of data.

In a second aspect, the present application provides a wireless communication method, which may be performed by an application function network element or a module (e.g., a chip) applied in the application function network element. The method comprises the following steps: determining a first pre-scheduling parameter set and a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set, wherein the first pre-scheduling parameter set comprises pre-scheduling parameter sets respectively corresponding to a plurality of equipment groups; and sending the 5QI corresponding to each prescheduling parameter set in the first prescheduling parameter set to the access network equipment.

In a possible implementation method, configuration information of a network is acquired, where the configuration information includes a period of a service message in the plurality of devices; dividing the plurality of devices into a plurality of device groups according to the configuration information; each pre-scheduling parameter set in the first pre-scheduling parameter set corresponds to one period, and the pre-scheduling parameter sets correspond to different periods respectively.

According to the scheme, the plurality of devices can be grouped to obtain a plurality of device groups, and then the pre-scheduling parameter sets are obtained according to the plurality of device groups.

In a possible implementation method, according to the number of devices in a first device group, determining the maximum number of prescheduled users in a prescheduling parameter set corresponding to the first device group; determining the total scheduling data amount in the pre-scheduling parameter set corresponding to the first equipment group according to the total data amount of the first equipment group; wherein the first device group is any one of the plurality of device groups.

According to the scheme, the accurate division of each equipment group is facilitated.

In a possible implementation method, according to the QoS requirement information of a first device group, a 5QI corresponding to the first device group is determined; the first device group is any one of the plurality of device groups, and the first device group corresponds to one of the first pre-scheduling parameter sets.

According to the scheme, the 5QI corresponding to each equipment group can be accurately determined.

In a possible implementation method, a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set is sent to the access network device through a 5G core network; or, sending, by the network management device corresponding to the access network device, the 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set to the access network device.

In a possible implementation method, a default pre-scheduling parameter set is obtained; updating the default pre-scheduling parameter set according to the first scheduling parameter set to obtain a fifth pre-scheduling parameter set; and transmitting the fifth set of pre-scheduling parameters to the access network device.

According to the scheme, the application function network element can dynamically adjust the default pre-scheduling parameter set, and the accurate determination of the pre-scheduling parameter set is facilitated.

In a possible implementation method, the default pre-scheduling parameter set includes a first pre-scheduling maximum number of users and a first scheduling data amount; any one of the first pre-scheduling parameter sets comprises a third pre-scheduling maximum user number and a third scheduling data total amount; the default pre-scheduling parameter set and the any pre-scheduling parameter set contain the same pre-scheduling minimum interval period; and updating the first pre-scheduled maximum user number and the first scheduled data total amount in the default pre-scheduled parameter set according to the third pre-scheduled maximum user number and the third scheduled data total amount to obtain a pre-scheduled parameter set in the fifth pre-scheduled parameter set.

In one possible implementation, a prescheduling parameter set contains one or more of the following information: pre-scheduling a minimum interval period, pre-scheduling a maximum number of users, and scheduling a total amount of data.

In a third aspect, an embodiment of the present application provides a communication apparatus, which may be an access network device and may also be a chip for an access network device. The apparatus has a function of implementing any of the implementation methods of the first aspect described above. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, where the apparatus may be an application function network element, and may also be a chip or a module for the application function network element. The apparatus has a function of implementing any of the implementation methods of the second aspect described above. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, including a processor and a memory; the memory is configured to store computer instructions, and when the apparatus is running, the processor executes the computer instructions stored in the memory, so as to cause the apparatus to perform any implementation method of the first aspect to the second aspect.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, which includes means or units (means) for performing each step of any implementation method in the first aspect to the second aspect.

In a seventh aspect, an embodiment of the present application provides a communication device, including a processor and an interface circuit, where the processor is configured to communicate with another device through the interface circuit, and perform any implementation method in the first aspect to the second aspect. The processor includes one or more.

In an eighth aspect, an embodiment of the present application provides a communication apparatus, including a processor coupled to a memory, where the processor is configured to call a program stored in the memory to execute any implementation method in the first aspect to the second aspect. The memory may be located within the device or external to the device. And the processor may be one or more.

In a ninth aspect, the present application further provides a computer-readable storage medium, which stores instructions that, when executed on a communication device, cause any implementation method in the first aspect to the second aspect to be performed.

In a tenth aspect, the present application further provides a computer program product, where the computer program product includes a computer program or instructions, and when the computer program or instructions are executed by a communication device, the method in any implementation of the first aspect to the second aspect is executed.

In an eleventh aspect, an embodiment of the present application further provides a chip system, including: a processor configured to perform any of the implementation methods of the first aspect to the second aspect.

In a twelfth aspect, an embodiment of the present application further provides a communication system, where the communication system includes an access network device for executing any implementation method of the first aspect, and an application function network element for executing any implementation method of the second aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

FIG. 2 (a) is a schematic diagram of a 5G network architecture based on a service-oriented architecture;

FIG. 2 (b) is a schematic diagram of a 5G network architecture based on a point-to-point interface;

FIG. 3 is a schematic diagram of an industrial terminal in an industrial field network accessing a 5G network;

fig. 4 is a schematic diagram of a communication method according to an embodiment of the present application;

fig. 5 is a schematic diagram of a communication method according to an embodiment of the present application;

fig. 6 is a schematic diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic diagram of a communication device according to an embodiment of the present application.

Detailed Description

In order to reduce the time delay of the terminal requesting to obtain the time-frequency resource of the uplink scheduling, as shown in fig. 1, the present application provides a communication system, which includes an application function network element and an access network device.

An application function network element, configured to determine a first pre-scheduling parameter set and a 5G QoS identifier (5G QoS identifier, 5qi) corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set, where the first pre-scheduling parameter set includes pre-scheduling parameter sets corresponding to multiple device groups, respectively; and sending the 5QI corresponding to each prescheduling parameter set in the first prescheduling parameter set to the access network equipment. The access network equipment is used for receiving the first pre-scheduling parameter set from the application function network element and the 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set; receiving a data packet of a target Service from a terminal, wherein the data packet comprises a Quality of Service Flow Identity (QFI); determining a first 5QI corresponding to the QFI; determining a prescheduling parameter set corresponding to the first 5QI from a second prescheduling parameter set; wherein the second set of pre-scheduling parameters comprises the first set of pre-scheduling parameters; and pre-scheduling the uplink resource of the terminal according to the pre-scheduling parameter set corresponding to the first 5QI.

In a possible implementation method, the access network device is further configured to receive the QFI from the session management network element and a QoS configuration corresponding to the QFI, where the QoS configuration includes the first 5QI; and determining the first 5QI according to the QFI and the QoS configuration corresponding to the QFI.

In a possible implementation, the second pre-scheduling parameter set further comprises a default pre-scheduling parameter set.

In a possible implementation method, the access network device is configured to receive a third pre-scheduling parameter set from the application function network element; updating a default pre-scheduling parameter set according to the third pre-scheduling parameter set to obtain a fourth pre-scheduling parameter set; wherein the second set of pre-scheduling parameters further comprises the fourth set of pre-scheduling parameters.

In a possible implementation method, the default pre-scheduling parameter set includes a first pre-scheduling maximum number of users and a first scheduling data amount; any one of the third pre-scheduling parameter sets comprises a second pre-scheduling maximum user quantity and a second scheduling data total quantity; the default pre-scheduling parameter set and the any pre-scheduling parameter set contain the same pre-scheduling minimum interval period; and the access network device is configured to update the first maximum pre-scheduled user number and the first total scheduled data amount in the default pre-scheduling parameter set according to the second maximum pre-scheduled user number and the second total scheduled data amount, so as to obtain a pre-scheduling parameter set in the fourth pre-scheduling parameter set.

In a possible implementation method, an application function network element is configured to obtain configuration information of a network, where the configuration information includes a period of a service message in the plurality of devices; dividing the plurality of devices into a plurality of device groups according to the configuration information; each pre-scheduling parameter set in the first pre-scheduling parameter set corresponds to one period, and the pre-scheduling parameter sets correspond to different periods respectively.

In a possible implementation method, an application function network element is configured to determine, according to a number of devices in a first device group, a maximum number of pre-scheduled users in a pre-scheduling parameter set corresponding to the first device group; determining the total scheduling data amount in the pre-scheduling parameter set corresponding to the first equipment group according to the total data amount of the first equipment group; wherein the first device group is any one of the plurality of device groups.

In a possible implementation method, an application function network element is configured to determine, according to QoS requirement information of a first device group, a 5QI corresponding to the first device group; the first device group is any one of the plurality of device groups, and the first device group corresponds to one of the first pre-scheduling parameter sets.

In a possible implementation method, the application function network element is configured to send, to the access network device through a 5G core network, a 5QI corresponding to each of the first pre-scheduling parameter set and the first pre-scheduling parameter set; or, sending, by the network management device corresponding to the access network device, the 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set to the access network device.

In a possible implementation method, an application function network element is used for acquiring a default pre-scheduling parameter set; updating the default pre-scheduling parameter set according to the first scheduling parameter set to obtain a fifth pre-scheduling parameter set; and transmitting the fifth set of pre-scheduling parameters to the access network device.

In a possible implementation method, the default pre-scheduling parameter set includes a first pre-scheduling maximum number of users and a first scheduling data amount; any one of the first pre-scheduling parameter sets comprises a third pre-scheduling maximum user number and a third scheduling data total amount; the default pre-scheduling parameter set and the any pre-scheduling parameter set contain the same pre-scheduling minimum interval period; and the application function network element is configured to update the first maximum pre-scheduled user number and the first total scheduled data amount in the default pre-scheduling parameter set according to the third maximum pre-scheduled user number and the third total scheduled data amount, so as to obtain a pre-scheduling parameter set in the fifth pre-scheduling parameter set.

In one possible implementation, a prescheduling parameter set contains one or more of the following information: pre-scheduling minimum interval period, pre-scheduling maximum user number and scheduling data total amount.

The system shown in fig. 1 can be used in the 5G network architecture shown in fig. 2 (a) or fig. 2 (b), and of course, can also be used in a future network architecture, such as a sixth generation (6G) network architecture, etc., which is not limited in this application.

Fig. 2 (a) is a schematic diagram of a 5G network architecture based on a service-oriented architecture. The 5G network architecture shown in fig. 2 (a) may include a Data Network (DN) and a carrier network. The functions of some of the network elements will be briefly described below.

Wherein the operator network may comprise one or more of the following network elements: an Authentication Server Function (AUSF) Network element, a Network open Function (NEF) Network element, a Policy Control Function (PCF) Network element, a Unified Data Management (UDM) Network element, a Unified Data Repository (UDR), a Network storage Function (Network storage Function, NRF) Network element, an Application Function (AF) Network element, an access and mobility management Function (AMF) Network element, a Session Management Function (SMF) Network element, a Radio Access Network (RAN) device, and a user plane Function (user plane, UPF) Network element, a Network Slice Selection Function (Slice) Network element, a sf Network element, and the like. In the operator network, the network elements or devices other than the radio access network device may be referred to as core network elements or core network devices.

The radio access network device may be a base station (base station), an evolved NodeB (eNodeB), a Transmission Reception Point (TRP), a next generation base station (gNB) in a 5G mobile communication system, a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system, and the like; the present invention may also be a module or a unit that performs part of the functions of the base station, for example, a Centralized Unit (CU) or a Distributed Unit (DU). The radio access network device may be a macro base station, a micro base station or an indoor station, a relay node or a donor node, and the like. The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the radio access network device.

A terminal in communication with the RAN may also be referred to as a terminal equipment, user Equipment (UE), a mobile station, a mobile terminal, or the like. The terminal can be widely applied to various scenes, for example, device-to-device (D2D), vehicle-to-electrical (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wearing, smart transportation, smart city, and the like. The terminal can be cell-phone, panel computer, take the computer of wireless transceiving function, wearable equipment, vehicle, unmanned aerial vehicle, helicopter, aircraft, steamer, robot, arm, intelligent house equipment etc.. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal.

The base stations and terminals may be fixed or mobile. The base station and the terminal can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons and satellite vehicles. The embodiment of the application does not limit the application scenarios of the base station and the terminal.

And the AMF network element executes functions of mobility management, access authentication/authorization and the like. In addition, it is also responsible for transferring user policy between the terminal and PCF.

The SMF network element executes functions of session management, PCF down-sending control strategy execution, UPF selection, terminal Internet Protocol (IP) address allocation and the like.

The UPF network element is used as an interface UPF with a data network to complete functions of user plane data forwarding, session/stream level-based charging statistics, bandwidth limitation and the like.

And the UDM network element executes functions of managing subscription data, user access authorization and the like.

And the UDR executes the access function of the type data such as the subscription data, the strategy data, the application data and the like.

And the NEF network element is used for supporting the opening of the capability and the event.

And the AF network element transfers the requirements of the application side to the network side, such as QoS requirements or user state event subscription and the like. The AF may be a third party functional entity, or may be an application service deployed by an operator, such as an IP Multimedia Subsystem (IMS) voice call service.

And the PCF network element is responsible for performing policy control functions such as charging, qoS bandwidth guarantee, mobility management, terminal policy decision and the like aiming at the session and service flow levels.

The NRF network element can be used for providing a network element discovery function and providing network element information corresponding to the network element type based on the request of other network elements. NRF also provides network element management services such as network element registration, update, de-registration, and network element status subscription and push.

And the AUSF network element is responsible for authenticating the user so as to determine whether the user or the equipment is allowed to access the network.

And the NSSF network element is used for selecting the network slice, counting the users in the network slice and the like.

The DN is a network outside the operator network, the operator network can access a plurality of DNs, and the DN can deploy a plurality of services and provide services such as data and/or voice for the terminal. For example, the DN is a private network of a certain intelligent factory, a sensor installed in a workshop of the intelligent factory can be a terminal, a control server of the sensor is deployed in the DN, and the control server can provide services for the sensor. The sensor can communicate with the control server, obtain the instruction of the control server, transmit the sensor data gathered to the control server, etc. according to the instruction. For another example, the DN is an internal office network of a company, the mobile phone or computer of the employee of the company may be a terminal, and the mobile phone or computer of the employee may access information, data resources, and the like on the internal office network of the company.

In fig. 2 (a), nausf, nnef, npcf, nudm, naf, namf, and Nsmf are the service interfaces provided by the AUSF, NEF, PCF, UDM, AF, AMF, and SMF, respectively, for invoking the corresponding service operations. N1, N2, N3, N4, and N6 are interface serial numbers. The meaning of these interface serial numbers can be found in the third generation partnership project (3 rd generation partnership project,3 gpp) standard protocol, which is not limited herein.

Fig. 2 (b) is a schematic diagram of a 5G network architecture based on a point-to-point interface, where reference may be made to the description of the function of the corresponding network element in fig. 2 (a) for introduction of the function of the network element, which is not described again. The main difference between fig. 2 (b) and fig. 2 (a) is that: the interfaces between the control plane network elements in fig. 2 (a) are served interfaces, and the interfaces between the control plane network elements in fig. 2 (b) are point-to-point interfaces.

In the architecture shown in fig. 2 (b), the interface names and functions between the network elements are as follows:

1) N1: the interface between the AMF and the terminal may be used to deliver QoS control rules, etc. to the terminal.

2) N2: the interface between the AMF and the RAN may be used to transfer radio bearer control information from the core network side to the RAN, and so on.

3) N3: the interface between RAN and UPF is mainly used for transmitting the uplink and downlink user plane data between RAN and UPF.

4) N4: the interface between the SMF and the UPF may be used for transmitting information between the control plane and the user plane, including controlling the sending of forwarding rules, qoS control rules, traffic statistics rules, etc. for the user plane and reporting information for the user plane.

5) N5: the interface between the AF and the PCF may be used for application service request issue and network event report.

6) N6: and the UPF and DN interface is used for transmitting the uplink and downlink user data stream between the UPF and the DN.

7) N7: the interface between the PCF and the SMF may be used to send a Protocol Data Unit (PDU) session granularity and a service data stream granularity control policy.

8) N8: the interface between the AMF and the UDM may be used for the AMF to obtain subscription data and authentication data related to access and mobility management from the UDM, and for the AMF to register information related to current mobility management of the terminal with the UDM.

9) And N9: and the user interface between the UPF and the UPF is used for transmitting the uplink and downlink user data streams between the UPFs.

10 N10: the interface between the SMF and the UDM may be used for the SMF to acquire the subscription data related to session management from the UDM, and for the SMF to register the information related to the current session of the terminal with the UDM.

11 N11), N11: the interface between the SMF and the AMF may be used to transfer PDU session tunnel information between the RAN and the UPF, to transfer control messages to the terminal, to transfer radio resource control information to the RAN, and so on.

12 N12), N12: the interface between the AMF and the AUSF can be used for initiating an authentication process from the AMF to the AUSF, wherein the interface can carry SUCI as a subscription identifier;

13 N13), N13: the interface between the UDM and the AUSF may be used for the AUSF to obtain the user authentication vector from the UDM to execute the authentication procedure.

14 N15), N15: the interface between PCF and AMF can be used to send down terminal strategy and access control relative strategy.

15 N35), N35: the interface between the UDM and the UDR may be used for the UDM to obtain the user subscription data information from the UDR.

16 N36, N36: the interface between the PCF and the UDR may be used for the PCF to obtain policy-related subscription data and application data-related information from the UDR.

It is to be understood that the network element or the function may be a network element in a hardware device, or may be a software function running on dedicated hardware, or a virtualization function instantiated on a platform (e.g., a cloud platform). Optionally, the network element or the function may be implemented by one device, or may be implemented by multiple devices together, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application.

The session management network element, the user plane network element, the policy control network element, and the application function network element in this application may be the SMF, UPF, PCF, and AF in fig. 2 (a) or fig. 2 (b), respectively, or may be a network element having the functions of the above-mentioned SMF, UPF, PCF, and AF in a future communication network, for example, a 6G network, which is not limited in this application. In the embodiments of the present application, SMF, UPF, PCF, and AF are respectively used as an example of a session management network element, a user plane network element, a policy control network element, and an application function network element.

For convenience of description, in the embodiment of the present application, a base station is described as an example of an access network device.

Communication technologies in traditional industrial scenarios are typically connected by wire. In a wired industrial field network, there are two types of communication messages defined in existing industrial communication protocols:

1) Aperiodic message: non-real-time messages, typically L3 messages, for configuration (configuration), maintenance, and other purposes, performed between the service server and the industrial terminal, and the like; the industrial terminal includes an industrial Controller (e.g., a Programmable Logic Controller (PLC)), an industrial Device (e.g., an Input/Output Device (I/O) Device), and the like;

2) And (3) periodic message: real-time messages or quasi-real-time messages which are sent between the PLCs and the PLCs or between the PLCs and the I/O equipment and are strongly related to production services, generally L2 messages; wherein, the periodic message usually adopts a bus transmission mechanism of "periodicity".

With the development of the 5G industrial internet technology, the communication of industrial terminals in industrial field networks is currently being switched from wire-based communication to wireless-based communication. The industrial terminal itself is not within the range defined by 3GPP, that is, the industrial terminal cannot directly communicate with the 3GPP network. Currently, an industrial terminal is generally accessed to a 3GPP network through a Client Premise Equipment (CPE), where the CPE may be a UE shown in fig. 2 (a) or fig. 2 (b), i.e., a terminal in the 3GPP network.

Fig. 3 is a schematic diagram of an industrial terminal accessing a 5G network in an industrial field network. A 5G Local Area Network (LAN) provides data access for a large number of industrial terminals and provides transmission services with strict quality assurance, such as delay, reliability, etc., that meet industrial standards. Taking the example of an industrial terminal comprising a PLC and an I/O device, normally, one PLC is hung under one CPE, but for the I/O device, it may happen that multiple IOs are hung under one CPE. In an industrial scene, the PLC and the I/O equipment carry out real-time service communication through fixed periodic messages, and the communication relationship is determined in the configuration process. Due to different services and functions, the periods of different service messages may not be consistent, and even two I/O devices hanging under the same CPE may execute services with different communication periods. Illustratively, the communication cycle between the devices in fig. 3 is shown in table 1.

TABLE 1

Both parties of communication	Communication cycle (unit: millisecond)
		PLC 1 and PLC 2	1
PLC 2 and I/O device 1	2
		PLC 2 and I/O device 2	4
PLC 2 and I/O device 3	8

It should be noted that the industrial terminal may not have 3GPP communication capability, and the industrial terminal may use the 3GPP network to perform communication through a terminal in the 3GPP network. Alternatively, for future communication, when the industrial terminal has 3GPP communication capability, the industrial terminal can be regarded as a terminal in a 3GPP network, such as the UE in fig. 2 (a) or fig. 2 (b).

In order to reduce uplink delay, an uplink pre-scheduling function is introduced in the embodiments of the present application, and specifically, regardless of whether a terminal sends a scheduling request to a base station, the base station actively schedules the terminal once at intervals by using a pre-scheduling parameter set, and allocates a suitable time-frequency resource for the terminal to send and receive data.

In the embodiment of the present application, each pre-scheduling parameter set includes the following three parameters:

1) Pre-scheduled minimum interval period (minpreallocation period): which may be denoted by X, refers to the minimum time interval for active prescheduling.

2) Pre-scheduled maximum number of users (preschouentumproperlimit): can be represented by Y, and refers to the number of users that can be pre-scheduled at most in a time unit, wherein the time unit can be a symbol, a time slot, a frame or a second, etc.;

3) Scheduling total data (preallocationinsize): which may be denoted by Z, refers to the total amount of data that can be scheduled for the pre-scheduled user.

Fig. 4 is a schematic diagram of a communication method according to an embodiment of the present application, where the method includes the following steps:

in step 401, the af determines a first pre-scheduling parameter set and a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set, where the first pre-scheduling parameter set includes pre-scheduling parameter sets corresponding to a plurality of device groups, respectively.

The AF may be, for example, an Industrial Field Enabled Service (IFES) device. In particular implementations, the IFES may be deployed on the UPF, or co-deployed with the UPF on a Mobile Edge Computing (MEC) device.

As an implementation method, the device group herein refers to a group formed by terminals in the 3GPP network, and thus one device group includes one or more terminals in the 3GPP network.

As another implementation method, the device group refers to a group formed by industrial terminals, and therefore one device group includes one or more industrial terminals, where the industrial terminals do not have 3GPP network communication capability, but can communicate through terminals of the 3GPP network using the 3GPP network.

Take the example that the device group includes an industrial terminal, in conjunction with the example of fig. 3. After the 5G LAN is established, the CPE (e.g., a terminal of a 3GPP network) comes online and creates a PDU session of ethernet type or IP type. Then, the service server configures the industrial terminal (such as PLC and I/O equipment) to obtain topology information of the field network, and also sets the period of the service message in the industrial terminal. Wherein, the topology information of the field network is used for representing the connection relationship between a plurality of industrial terminals and the CPE. The AF may obtain field network configuration information from the service server, where the field network configuration information includes topology information of the field network and a period of a service message in the industrial terminal. The industrial terminal here can be, for example, PLC 1, PLC 2, I/O device 1, I/O device 2 or I/O device 3 in fig. 3. After obtaining the configuration information, the AF may divide the plurality of industrial terminals into a plurality of device groups, where each device group includes one or more industrial terminals, and then determine a pre-scheduling parameter set for each device group. The determined one or more pre-scheduling parameter sets constitute a first pre-scheduling parameter set. One pre-scheduling parameter set corresponds to one period, and different pre-scheduling parameter sets correspond to different periods.

Specifically, the AF may group the industrial terminals in the field network according to a period of a service message of the industrial terminals in the field network, to obtain multiple device groups. The service messages of the industrial terminals in the same equipment group have the same period, and the service messages of the industrial terminals in different equipment groups have different periods. It should be noted that, if multiple service messages with different periods are contained in one industrial terminal, the industrial terminal may be divided into multiple device groups.

Illustratively, there are 8 industrial terminals in the field network, respectively industrial terminal 1 to industrial terminal 8. According to the period of the service message in the industrial terminal, the 8 industrial terminals are grouped as follows:

device group 1: { an industrial terminal 1, an industrial terminal 2, and an industrial terminal 3};

device group 2: { an industrial terminal 1, an industrial terminal 4, an industrial terminal 5, and an industrial terminal 6};

device group 3: { an industrial terminal 2, an industrial terminal 7, and an industrial terminal 8};

the period of the service message corresponding to the device group 1 is 1ms, that is, the industrial terminals of the device group 1 all have service messages with a period of 1 ms; the period of the service corresponding to the device group 2 is 2ms, that is, the industrial terminals of the device group 2 all have service messages with the period of 2 ms; the period of the service corresponding to the device group 3 is 4ms, that is, the industrial terminals of the device group 3 all have service messages with a period of 4 ms. It should be noted that the industrial terminal 1 includes both the service message with the period of 1ms and the service message with the period of 2ms, and therefore the industrial terminal 1 belongs to both the device group 1 and the device group 2. Similarly, the industrial terminal 2 includes both the service message with the period of 1ms and the service message with the period of 4ms, and therefore the industrial terminal 1 belongs to both the device group 1 and the device group 3.

After multiple device groups are obtained, a pre-scheduling parameter set may be determined from each device group. Taking any one device group of the multiple device groups as an example (hereinafter referred to as a first device group), the AF may determine, according to a period of a service message corresponding to the first device group, a pre-scheduling minimum interval period in a pre-scheduling parameter set corresponding to the first device group, determine, according to the number of devices in the first device group, a pre-scheduling maximum number of users in the pre-scheduling parameter set corresponding to the first device group, and determine, according to a total data amount of the first device group, a total scheduling data amount in the pre-scheduling parameter set corresponding to the first device group.

Taking the above example as an example, the device group 1, the device group 2, and the device group 3 respectively correspond to the pre-scheduling parameter set 1, the pre-scheduling parameter set 2, and the pre-scheduling parameter set 3, as follows:

pre-scheduling parameter set 1: x =1ms, y =3, z =100;

pre-scheduling parameter set 2: x =2ms, y =4,z =200;

pre-scheduling parameter set 3: x =4ms, y =3, z =400.

Specifically, since the industrial terminals in the device group 1 all include service messages with a period of 1ms, the minimum pre-scheduling interval period X in the pre-scheduling parameter set 1 corresponding to the device group 1 takes a value of 1ms. Since the device group 1 includes 3 industrial terminals, the maximum number Y of prescheduled users in the prescheduling parameter set 1 corresponding to the device group 1 takes a value of 3. Since the total data amount of the 3 industrial terminals in the device group 1 is 100, the total scheduling data amount Z in the pre-scheduling parameter set 1 corresponding to the device group 1 takes the value of 100. Likewise, a pre-scheduling parameter set 2 and a pre-scheduling parameter set 3 may be obtained. The pre-scheduling parameter set 1, the pre-scheduling parameter set 2 and the pre-scheduling parameter set 3 may be collectively referred to as a first pre-scheduling parameter set.

Further, the AF may also assign one 5QI to each device group. For example, the AF may determine a 5QI corresponding to a first device group according to the QoS requirement information of the first device group, where the first device group is any one of a plurality of device groups. Where one 5QI is an index of a set of QoS parameters, and thus one 5QI indicates a set of QoS parameters. The set of QoS parameters includes, for example, one or more of a Resource Type (Resource Type), a Priority Level (Priority Level), a Packet Delay Budget (PDB), a Packet Error Rate (PER), a Default Maximum Data Burst Volume (Default MDBV), and a Default Averaging Window (Default Averaging Window).

Each device group in the plurality of device groups corresponds to one pre-scheduling parameter set, and each device group corresponds to one 5QI, so that each pre-scheduling parameter set corresponds to one 5QI.

Taking the above example as an example, the allocated 5QI is as follows:

the device group 1 corresponds to a pre-scheduling parameter set 1 and corresponds to a 5QI 1;

a device group 2 corresponding to a pre-scheduling parameter set 2, corresponding to a 5QI 2;

device group 3 corresponds to pre-scheduling parameter set 3 and corresponds to 5QI 3.

In step 402, the af sends 5QI corresponding to each of the first pre-scheduling parameter set and the first pre-scheduling parameter set to the base station. Accordingly, the base station receives 5QI corresponding to each of the first pre-scheduling parameter set and the first pre-scheduling parameter set.

Taking the above example as an example, the 5QI corresponding to each of the first pre-scheduling parameter set and the first pre-scheduling parameter set sent by the AF to the base station includes the following information:

a pre-scheduling parameter set 1 and a 5QI 1 corresponding to the pre-scheduling parameter set 1;

pre-scheduling parameter set 2, and corresponding 5QI 2 to pre-scheduling parameter set 2;

pre-scheduling parameter set 3, and 5QI 3 corresponding to pre-scheduling parameter set 2.

As an implementation method, the AF may send, to the base station, the first pre-scheduling parameter set and a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set through the 5G core network. For example, the AF sends the first set of pre-scheduling parameters and 5QI corresponding to each set of pre-scheduling parameters in the first set of pre-scheduling parameters to the base station via network elements such as the NEF, the PCF, and the SMF.

As another implementation method, the AF may also send the first pre-scheduling parameter set and a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set to the base station through the network management device corresponding to the base station. For example, the AF sends the first pre-scheduling parameter set and 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set to the base station through an Application Programming Interface (API) opened by an operation, administration and maintenance (OAM) system of the base station.

In step 403, the base station receives a data packet of the target service from the terminal, where the data packet includes QFI.

The terminal herein refers to a terminal in a 3GPP network. The QFI in the data packet of the target service is added to the header of the data packet by the terminal.

If the device group is composed of terminals (e.g., industrial terminals) in a non-3 GPP network, the industrial terminals in the device group transmit and receive data packets of the target service through the terminals (also referred to as CPEs) in the 3GPP network. The target service herein refers to a service in an industrial terminal.

If the device group is formed by terminals in a 3GPP network, the terminals in the device group can directly transmit and receive data packets of the target service through the 3GPP network. The target service herein refers to a service in a terminal of a 3GPP network.

In step 404, the base station determines the first 5QI corresponding to the QFI in the data packet.

The corresponding relation between the QFI and the 5QI is stored in the base station. For example, after step 401, the AF may send a policy authorization request to the PCF, where the policy authorization request carries service flow description information and QoS requirements of the target service, and the service flow description information may include an IP five-tuple, a Virtual Local Area Network (VLAN) identifier, and the like. The PCF then generates a packet filter, which may be an ethertype packet filter or an IP type packet filter, from the traffic flow description information. And the PCF allocates 5QI to the target service according to the QoS requirement. The PCF then sends a Policy and Charging Control (PCC) rule to the SMF, the PCC rule including a packet filter and a QoS attribute, the QoS attribute including 5QI. After receiving the PCC Rule, the SMF allocates QFI to the PCC Rule, and generates QoS configuration (QoS profile), qoS Rule (QoS Rule), and Packet Detection Rule (PDR). The QoS configuration comprises QoS attributes in PCC rules, the QoS rules comprise QFI and packet filters in the PCC rules, and the PDR comprises the QFI and the packet filters in the PCC rules. The SMF then sends the QFI and QoS configuration to the base station, qoS rules to the terminal, and packet detection rules to the UPF. The base station may determine a correspondence between QFI and 5QI according to the received QFI and QoS configuration, for example, QFI 1 corresponds to 5QI 1, QFI 2 corresponds to 5QI 2, and QFI 3 corresponds to 5QI 3.

In step 404, the base station determines that the QFI in the data packet of the target service corresponds to the first 5QI. The first 5QI may be, for example, 5QI 1,5QI 2, or 5QI 3, and the like. For example, if the base station determines that QFI in a data packet of the target service is QFI 1, the base station determines 5QI 1 corresponding to QFI 1 according to a correspondence between QFI 1 and 5QI 1, where the 5QI 1 is the first 5QI.

In step 405, the base station determines a prescheduling parameter set corresponding to the first 5QI from the second prescheduling parameter set.

Wherein the second pre-scheduling parameter set comprises the first pre-scheduling parameter set.

As an implementation method, the second pre-scheduling parameter set is the same as the first pre-scheduling parameter set. That is, the base station determines the first pre-scheduling parameter set corresponding to the first 5QI from the first pre-scheduling parameter set. Taking the above example as an example, assuming that the first 5QI is 5QI 1, it is determined that the pre-scheduling parameter set corresponding to 5QI 1 in the first pre-scheduling parameter set is pre-scheduling parameter set 1. Assuming that the first 5QI is 5QI 2, it is determined that the pre-scheduling parameter set in the first pre-scheduling parameter set corresponding to 5QI 2 is pre-scheduling parameter set 2.

As another implementation, the second set of pre-scheduling parameters includes the first set of pre-scheduling parameters, and further includes a default set of pre-scheduling parameters. Wherein the default set of pre-scheduling parameters is pre-configured on the base station or predefined by a protocol. The base station therefore determines the first 5QI corresponding pre-scheduling parameter set from the first pre-scheduling parameter set and the default pre-scheduling parameter set. As an example, a default pre-scheduling parameter set a, a default pre-scheduling parameter set b, and a default pre-scheduling parameter set c are pre-configured on the base station, where the default pre-scheduling parameter set a, the default pre-scheduling parameter set b, and the default pre-scheduling parameter set c correspond to 5QI a,5QI b, and 5QI c, respectively. If the first 5QI is 5QI 1, the pre-scheduling parameter set determined by the base station is the pre-scheduling parameter set 1, and if the first 5QI is 5QI b, the pre-scheduling parameter set determined by the base station is the default pre-scheduling parameter set b.

As another implementation, the second set of pre-scheduling parameters includes the first set of pre-scheduling parameters, and further includes a fourth set of pre-scheduling parameters. The fourth pre-scheduling parameter set is obtained by the base station according to the following method: the base station receives a third pre-scheduling parameter set from the AF, wherein the third pre-scheduling parameter set comprises one or more pre-scheduling parameter sets; and the base station updates the default pre-scheduling parameter set on the base station according to the third pre-scheduling parameter set to obtain a fourth pre-scheduling parameter set. That is, the base station may update the local default pre-scheduling parameter set according to the third pre-scheduling parameter set received from the AF, so as to obtain an updated pre-scheduling parameter set, that is, a fourth pre-scheduling parameter set. Subsequently, the base station may determine a first pre-scheduling parameter set corresponding to the 5QI from the first pre-scheduling parameter set and the fourth pre-scheduling parameter set. Wherein the third pre-scheduling parameter set may be the same as or different from the first pre-scheduling parameter set. The method for generating the third pre-scheduling parameter set by the AF is similar to the method for generating the first pre-scheduling parameter set, and is not described again. Taking any default pre-scheduling parameter set on the base station as an example, the default pre-scheduling parameter set includes the first pre-scheduling maximum user number and the first scheduling data total amount; and any one of the third pre-scheduling parameter sets comprises a second pre-scheduling maximum user number and a second scheduling data total, and the default pre-scheduling parameter set and the any one of the pre-scheduling parameter sets comprise the same pre-scheduling minimum interval period, so that the base station can update the first pre-scheduling maximum user number and the first scheduling data total in the default pre-scheduling parameter set according to the second pre-scheduling maximum user number and the second scheduling data total to obtain one of the fourth pre-scheduling parameter sets. The following description is made with reference to specific examples. For example, the base station is preconfigured with a default pre-scheduling parameter set a (X =6ms, y =4, z = 300) corresponding to 5QI a, and the base station receives a third pre-scheduling parameter set from the AF, where the third pre-scheduling parameter set includes a pre-scheduling parameter set 4 (X =6ms, y =5, z = 400), so that the base station may update the default pre-scheduling parameter set to a default pre-scheduling parameter set a '(X =6ms, y =5, z = 400), where the default pre-scheduling parameter set a' corresponds to 5QI a. As another implementation method, if the AF further transmits a 5QI 4 corresponding to the pre-scheduling parameter set 4 to the base station, the updated pre-scheduling parameter set a' may be updated from the corresponding 5QI a to the corresponding 5QI 4.

As another implementation, the second set of pre-scheduled parameters includes the first set of pre-scheduled parameters, and further includes a fifth set of pre-scheduled parameters. The fifth pre-scheduling parameter set is acquired by the base station from the AF, and the method for the AF to generate the fifth pre-scheduling parameter set is as follows: and the AF acquires a default pre-scheduling parameter set, and updates the default pre-scheduling parameter set according to the first scheduling parameter set to obtain a fifth pre-scheduling parameter. For example, a default pre-scheduling parameter set obtained by the AF includes a first pre-scheduling maximum user number and a first scheduling data total amount, any one of the first pre-scheduling parameter set includes a third pre-scheduling maximum user number and a third scheduling data total amount, and the default pre-scheduling parameter set and the any one of the pre-scheduling parameter sets include the same pre-scheduling minimum interval period, and then the AF updates the first pre-scheduling maximum user number and the first scheduling data total amount in the default pre-scheduling parameter set according to the third pre-scheduling maximum user number and the third scheduling data total amount, so as to obtain one of the fifth pre-scheduling parameter sets. The following description is made with reference to specific examples. For example, the AF acquires a default pre-scheduling parameter set a (X =6ms, y =4, z = 300), corresponds to 5QI a, includes a pre-scheduling parameter set 5 (X =6ms, y =8, z = 600) in the first pre-scheduling parameter set determined by the base station, and then obtains an updated default pre-scheduling parameter set a "(X =6ms, y =8, z = 600) according to the default pre-scheduling parameter set a, where the updated default pre-scheduling parameter set a" is one pre-scheduling parameter set in the fifth pre-scheduling parameter set. It should be noted that, while sending the fifth pre-scheduling parameter set to the base station, the AF may also send, to the base station, 5QI corresponding to each pre-scheduling parameter set in the fifth pre-scheduling parameter set.

And step 406, the base station performs prescheduling on the uplink resource of the terminal according to the prescheduling parameter set corresponding to the first 5QI.

According to the scheme, the base station is configured with the plurality of pre-scheduling parameter sets, so that the base station can pre-schedule the uplink resource of the terminal according to the pre-scheduling parameter sets, the time for the terminal to obtain the uplink resource is reduced, and the communication efficiency of the terminal can be improved. In addition, since the AF configures one or more pre-scheduling parameter sets for the base station, the pre-scheduling parameter sets can be dynamically configured or adjusted according to actual needs, which is beneficial to accurately allocating corresponding resources to the terminal.

It should be noted that the AF may dynamically adjust the pre-scheduling parameter set configured by the base station and the 5QI corresponding to the pre-scheduling parameter set. For example, if the configuration information obtained by the AF to the field network changes, for example, the industrial terminals are increased or decreased, the AF may update the pre-scheduling parameter set and the 5QI corresponding to the pre-scheduling parameter set. For another example, if the AF learns that a service is added or deleted in the industrial terminal in the field network or that the period of the existing service of the industrial terminal in the field network changes, the AF may also update the pre-scheduling parameter set and the 5QI corresponding to the pre-scheduling parameter set. The update process is described below in conjunction with the foregoing examples.

For example, before updating, the device group, the pre-scheduling parameter set, and the 5QI determined by the AF are as follows:

the device group 1, the device group 2, and the device group 3 respectively correspond to the pre-scheduling parameter set 1, the pre-scheduling parameter set 2, and the pre-scheduling parameter set 3, as follows:

pre-scheduling parameter set 1: x =1ms, y =3, z =100;

pre-scheduling parameter set 2: x =2ms, y =4,z =200;

pre-scheduling parameter set 3: x =4ms, y =3, z =400.

Example 1

Newly adding an industrial terminal 9, and the period of the service message in the industrial terminal 9 is 4ms, the updated device group is as follows:

device group 3: { industrial terminal 2, industrial terminal 7, industrial terminal 8, and industrial terminal 9};

the device group 1, the device group 2, and the device group 3 respectively correspond to the pre-scheduling parameter 1, the pre-scheduling parameter 2, and the pre-scheduling parameter 3, as follows:

pre-scheduling parameter set 1: x =1ms, y =3, z =100;

pre-scheduling parameter set 2: x =2ms, y =4, z =200;

pre-scheduling parameter set 3: x =4ms, y =4,z =500.

And respectively reallocating 5QI for each equipment group according to the QoS requirement information of each equipment group. Note that if a certain device group is not changed, the previous 5QI may be continuously used.

Example 2

Deleting the industrial terminal 4, the updated device group is as follows:

device group 2: { an industrial terminal 1, an industrial terminal 5, and an industrial terminal 6};

pre-scheduling parameter set 1: x =1ms, y =3, z =100;

pre-scheduling parameter set 2: x =2ms, y =3, z =150;

pre-scheduling parameter set 3: x =4ms, y =3,z =400.

Example 3

If the period of the service message of the industrial terminal 3 is modified to 2ms, the updated device group is as follows:

device group 1: { an industrial terminal 1, an industrial terminal 2};

device group 2: { an industrial terminal 1, an industrial terminal 3, an industrial terminal 4, an industrial terminal 5, and an industrial terminal 6};

pre-scheduling parameter set 1: x =1ms, y =2, z =50;

pre-scheduling parameter set 2: x =2ms, y =5, z =250;

pre-scheduling parameter set 3: x =4ms, y =3, z =400.

And respectively reallocating 5QI for each equipment group according to the requirement information of each equipment group. Note that if a certain device group is not changed, the previous 5QI may be continuously used.

Example 4

If 1 service message is newly added to the industrial terminal 1, and the period of the service message is 4ms, the updated device group is as follows:

device group 3: { an industrial terminal 1, an industrial terminal 2, an industrial terminal 7, and an industrial terminal 8};

pre-scheduling parameter set 1: x =1ms, y =3, z =100;

pre-scheduling parameter set 2: x =2ms, y =4, z =200;

pre-scheduling parameter set 3: x =4ms, y =4,z =500.

Subsequently, the AF may configure the updated pre-scheduling parameters and the corresponding 5QI to the base station.

The embodiment of fig. 4 is described below with reference to a specific example of an industrial field network. Fig. 5 is a communication method provided in an embodiment of the present application, where the method includes the following steps:

in step 501, the AF acquires configuration information of the field network.

The AF may be, for example, an IFES device. The field network configuration information includes topology information of the field network and a period of a service message in the industrial terminal, and the embodiment of fig. 4 is specifically referred to for description.

And step 502, the AF groups the industrial terminals according to the configuration information of the field network.

The af determines a pre-scheduled parameter set for each device group, step 503.

In step 504, the af determines a 5QI for each device group.

In step 505, the af sends the first pre-scheduling parameter set and a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set to the base station. Accordingly, the base station receives 5QI corresponding to each of the first pre-scheduling parameter set and the first pre-scheduling parameter set.

For specific implementation of the above steps 501 to 505, reference may be made to the description of the above steps 401 to 402.

In step 506, the af sends a policy authorization request to the PCF. Accordingly, the PCF receives the policy authorization request.

In step 507, the pcf sends the PCC rules to the SMF. Accordingly, the SMF receives the PCC rule.

In step 508, the SMF sends the QoS configuration and QFI to the base station. Accordingly, the base station receives the QoS configuration and QFI.

In step 509, the SMF sends the PDR to the UPF. Accordingly, the UPF receives the PDR.

The smf sends the QoS rules to the terminal, step 510. Accordingly, the terminal receives the QoS rule.

The specific implementation of the above steps 506 to 510 may refer to the description in the above step 404.

After the configuration is performed on the UPF, the base station and the terminal, aiming at the uplink data flow of the target service of the industrial terminal, the subsequent industrial terminal sends an uplink data packet of the uplink data flow to the terminal, the terminal matches the uplink data packet of the target service according to a packet filter in the QoS rule, if the uplink data packet of the target service is matched with the uplink data packet of the target service, the QFI is added to the packet head of the uplink data packet, and then the uplink data packet is sent to the base station. After receiving the uplink data packet, the base station may determine, according to the QFI in the uplink data packet, a 5QI corresponding to the QFI, and perform QoS guarantee on the uplink data packet of the uplink data stream according to the 5QI, and the base station further determines a pre-scheduling parameter set corresponding to the 5QI, and performs corresponding uplink pre-scheduling according to the pre-scheduling parameter set.

Aiming at the downlink data flow of the target service of the industrial terminal, after receiving the downlink data packet of the downlink service flow, the UPF matches the downlink data packet of the target service according to a packet filter in the PDR, if the downlink data packet is matched with the packet filter in the PDR, the QFI is added to the packet head of the downlink data packet, and then the downlink data packet is sent to the base station. After receiving the downlink data packet, the base station may determine, according to the QFI in the downlink data packet, a 5QI corresponding to the QFI, and perform QoS guarantee on the downlink data packet of the downlink data stream according to the 5QI.

It is to be understood that, in order to implement the functions in the above-described embodiments, the AF and the base station include corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software driven hardware depends on the particular application scenario and design constraints imposed on the solution.

Fig. 6 and fig. 7 are schematic structural diagrams of a possible communication device provided in an embodiment of the present application. These communication devices can be used to implement the functions of the AF or the base station in the above method embodiments, and therefore, the advantageous effects of the above method embodiments can also be achieved. In the embodiment of the present application, the communication device may be an AF or a base station, and may also be a module (e.g., a chip) applied to the AF or the base station.

As shown in fig. 6, the communication device 600 includes a processing unit 610 and a transceiving unit 620. The communication apparatus 600 is used to implement the functions of the AF or the base station in the method embodiments shown in fig. 4 or fig. 5 described above.

When the communication device 600 is used to implement the functionality of a base station in the method embodiments shown in fig. 4 or fig. 5: a transceiver 620, configured to receive a first pre-scheduling parameter set from an application function network element and a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set; receiving a data packet of a target service from a terminal, wherein the data packet comprises QFI; the processing unit 610 is configured to determine a first 5QI corresponding to the QFI; determining a prescheduling parameter set corresponding to the first 5QI from a second prescheduling parameter set; wherein the second set of pre-scheduling parameters comprises the first set of pre-scheduling parameters; and performing prescheduling on the uplink resource of the terminal according to the prescheduling parameter set corresponding to the first 5QI.

In a possible implementation method, the transceiver 620 is further configured to receive the QFI from the session management network element and a QoS configuration corresponding to the QFI, where the QoS configuration includes the first 5QI; the processing unit 610 is configured to determine a first 5QI corresponding to the QFI, and specifically includes: for determining the first 5QI according to the QFI and the QoS configuration corresponding to the QFI.

In a possible implementation method, the transceiver unit 620 is further configured to receive a third pre-scheduling parameter set from the application function network element; the processing unit 610 is further configured to update a default pre-scheduling parameter set according to the third pre-scheduling parameter set, so as to obtain a fourth pre-scheduling parameter set; wherein the second pre-scheduling parameter set further comprises the fourth pre-scheduling parameter set.

In a possible implementation method, the default pre-scheduling parameter set includes a first pre-scheduling maximum number of users and a first scheduling data amount; any one of the third pre-scheduling parameter sets comprises a second pre-scheduling maximum user number and a second scheduling data total amount; the default pre-scheduling parameter set and the any pre-scheduling parameter set contain the same pre-scheduling minimum interval period; the processing unit 610 is configured to update a default pre-scheduling parameter set according to the third pre-scheduling parameter set to obtain a fourth pre-scheduling parameter set, and specifically includes: and the second scheduling parameter set is configured to update the first pre-scheduled maximum user number and the first scheduling data total in the default pre-scheduling parameter set according to the second pre-scheduled maximum user number and the second scheduling data total, so as to obtain a pre-scheduling parameter set in the fourth pre-scheduling parameter set.

When the communication apparatus 600 is used to implement the functionality of the AF in the method embodiments shown in fig. 4 or 5: a processing unit 610, configured to determine a first pre-scheduling parameter set and a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set, where the first pre-scheduling parameter set includes pre-scheduling parameter sets corresponding to multiple device groups, respectively; a transceiving unit 620, configured to send, to the access network device, a 5QI corresponding to each of the first pre-scheduling parameter set and the first pre-scheduling parameter set.

In a possible implementation method, the processing unit 610 is further configured to obtain configuration information of a network, where the configuration information includes a period of a service message in the multiple devices; dividing the plurality of devices into a plurality of device groups according to the configuration information; each pre-scheduling parameter set in the first pre-scheduling parameter set corresponds to one period, and the pre-scheduling parameter sets correspond to different periods respectively.

In a possible implementation method, the processing unit 610 is configured to determine a first pre-scheduling parameter set, and specifically includes: the method comprises the steps of determining the maximum pre-scheduling user number in a pre-scheduling parameter set corresponding to a first equipment group according to the equipment number in the first equipment group; determining the total scheduling data amount in the pre-scheduling parameter set corresponding to the first equipment group according to the total data amount of the first equipment group; wherein the first device group is any one of the plurality of device groups.

In a possible implementation method, the processing unit 610 is configured to determine a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set, and specifically includes: the device comprises a first equipment group and a second equipment group, wherein the first equipment group is used for determining a 5QI corresponding to the first equipment group according to the QoS requirement information of the first equipment group; the first device group is any one of the plurality of device groups, and the first device group corresponds to one of the first pre-scheduling parameter sets.

In a possible implementation method, the transceiver unit 620 is specifically configured to send, to the access network device through a 5G core network, a 5QI corresponding to each of the first pre-scheduling parameter set and the first pre-scheduling parameter set; or, sending, by the network management device corresponding to the access network device, the 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set to the access network device.

In a possible implementation method, the processing unit 610 is further configured to obtain a default pre-scheduling parameter set; updating the default pre-scheduling parameter set according to the first scheduling parameter set to obtain a fifth pre-scheduling parameter set; the transceiving unit 620 is further configured to send the fifth set of pre-scheduling parameters to the access network device.

In a possible implementation method, the default pre-scheduling parameter set includes a first pre-scheduling maximum number of users and a first scheduling data amount; any one pre-scheduling parameter set in the first pre-scheduling parameter set comprises a third pre-scheduling maximum user quantity and a third scheduling data total quantity; the default pre-scheduling parameter set and the any pre-scheduling parameter set contain the same pre-scheduling minimum interval period; the processing unit 610 is configured to update the default pre-scheduling parameter set according to the first scheduling parameter set to obtain a fifth pre-scheduling parameter set, and specifically includes: and the scheduling module is configured to update the first pre-scheduled maximum user number and the first scheduled data total in the default pre-scheduled parameter set according to the third pre-scheduled maximum user number and the third scheduled data total, so as to obtain a pre-scheduled parameter set in the fifth pre-scheduled parameter set.

More detailed descriptions about the processing unit 610 and the transceiver unit 620 can be directly obtained by referring to the related descriptions in the method embodiment shown in fig. 4 or fig. 5, which are not repeated herein.

As shown in fig. 7, the communication device 700 includes a processor 710 and an interface circuit 720. Processor 710 and interface circuit 720 are coupled to each other. It is understood that interface circuit 720 may be a transceiver or an input-output interface. Optionally, the communication device 700 may further include a memory 730 for storing instructions to be executed by the processor 710 or for storing input data required by the processor 710 to execute the instructions or for storing data generated by the processor 710 after executing the instructions.

When the communication device 700 is used to implement the method shown in fig. 4 or fig. 5, the processor 710 is configured to implement the functions of the processing unit 610, and the interface circuit 720 is configured to implement the functions of the transceiver unit 620.

When the communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above method embodiments. The base station chip receives information from other modules (such as a radio frequency module or an antenna) in the base station, and the information is sent to the base station by the terminal; alternatively, the base station chip sends information to other modules (such as a radio frequency module or an antenna) in the base station, and the information is sent by the base station to the terminal.

It is understood that the Processor in the embodiments of the present Application may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. The general purpose processor may be a microprocessor, but may be any conventional processor.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access memory, flash memory, read only memory, programmable read only memory, erasable programmable read only memory, electrically erasable programmable read only memory, registers, a hard disk, a removable hard disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a base station or a terminal. Of course, the processor and the storage medium may reside as discrete components in a base station or terminal.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a base station, user equipment, or other programmable device. The computer program or instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; optical media such as digital video disks; but also semiconductor media such as solid state disks. The computer readable storage medium may be volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a alone, A and B together, and B alone, wherein A and B may be singular or plural. In the description of the text of the present application, the character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.

Claims

1. A method of communication, comprising:

receiving a first pre-scheduling parameter set from an application function network element and a 5G quality of service stream identifier 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set;

receiving a data packet of a target service from a terminal, wherein the data packet comprises a service quality stream identifier QFI;

determining a first 5QI corresponding to the QFI;

determining a prescheduling parameter set corresponding to the first 5QI from a second prescheduling parameter set; wherein the second set of pre-scheduling parameters comprises the first set of pre-scheduling parameters;

and pre-scheduling the uplink resource of the terminal according to the pre-scheduling parameter set corresponding to the first 5QI.

2. The method of claim 1, wherein the method further comprises:

receiving the QFI from a session management network element and a QoS (quality of service) configuration corresponding to the QFI, wherein the QoS configuration comprises the first 5QI;

the determining a first 5QI corresponding to the QFI includes:

and determining the first 5QI according to the QFI and the QoS configuration corresponding to the QFI.

3. The method of claim 1 or 2, wherein the second set of pre-scheduled parameters further comprises a default set of pre-scheduled parameters.

4. The method of claim 1 or 2, further comprising:

receiving a third pre-scheduling parameter set from the application function network element;

updating a default pre-scheduling parameter set according to the third pre-scheduling parameter set to obtain a fourth pre-scheduling parameter set;

wherein the second set of pre-scheduling parameters further comprises the fourth set of pre-scheduling parameters.

5. The method of claim 4, wherein the default pre-scheduling parameter set comprises a first pre-scheduled maximum number of users and a first total amount of scheduled data; any one of the third pre-scheduling parameter sets comprises a second pre-scheduling maximum user number and a second scheduling data total amount; the default pre-scheduling parameter set and the any pre-scheduling parameter set contain the same pre-scheduling minimum interval period;

the updating the default pre-scheduling parameter set according to the third pre-scheduling parameter set to obtain a fourth pre-scheduling parameter set includes:

and updating the first pre-scheduled maximum user number and the first scheduled data total amount in the default pre-scheduled parameter set according to the second pre-scheduled maximum user number and the second scheduled data total amount to obtain a pre-scheduled parameter set in the fourth pre-scheduled parameter set.

6. The method according to any of claims 1 to 4, wherein one pre-scheduling parameter set contains one or more of the following information:

pre-scheduling minimum interval period, pre-scheduling maximum user number and scheduling data total amount.

7. A method of communication, comprising:

determining a first pre-scheduling parameter set and a 5QI corresponding to each pre-scheduling parameter set in the first pre-scheduling parameter set, wherein the first pre-scheduling parameter set comprises pre-scheduling parameter sets respectively corresponding to a plurality of equipment groups;

and sending 5QI corresponding to each prescheduling parameter set in the first prescheduling parameter set to access network equipment.

8. The method of claim 7, further comprising:

acquiring configuration information of a network, wherein the configuration information comprises the periods of service messages in the plurality of devices;

dividing the plurality of devices into the plurality of device groups according to the configuration information;

each pre-scheduling parameter set in the first pre-scheduling parameter set corresponds to one cycle, and the plurality of pre-scheduling parameter sets correspond to different cycles respectively.

9. The method of claim 8, wherein the determining a first set of pre-scheduling parameters comprises:

determining the maximum pre-scheduling user number in a pre-scheduling parameter set corresponding to a first equipment group according to the equipment number in the first equipment group;

determining the total amount of scheduling data in a pre-scheduling parameter set corresponding to the first equipment group according to the total amount of data of the first equipment group;

wherein the first device group is any one of the plurality of device groups.

10. The method of any of claims 7 to 9, wherein the determining a 5QI for each of the first set of pre-scheduling parameters comprises:

determining a 5QI corresponding to a first equipment group according to the QoS (quality of service) demand information of the first equipment group;

the first device group is any one of the plurality of device groups, and the first device group corresponds to one of the first pre-scheduling parameter sets.

11. The method of any of claims 7 to 10, wherein the transmitting, to an access network device, the 5QI for each of the first set of pre-scheduling parameters and the first set of pre-scheduling parameters comprises:

sending, to the access network device, a 5QI corresponding to each of the first pre-scheduling parameter set and the first pre-scheduling parameter set through a 5G core network; alternatively, the first and second electrodes may be,

and sending the 5QI corresponding to each prescheduling parameter set in the first prescheduling parameter set to the access network equipment through the network management equipment corresponding to the access network equipment.

12. The method of any of claims 7 to 11, further comprising:

acquiring a default pre-scheduling parameter set;

updating the default pre-scheduling parameter set according to the first scheduling parameter set to obtain a fifth pre-scheduling parameter set;

and sending the fifth pre-scheduling parameter set to the access network equipment.

13. The method of claim 12, wherein the default pre-scheduling parameter set comprises a first pre-scheduled maximum number of users and a first total amount of scheduled data; any one of the first pre-scheduling parameter sets comprises a third pre-scheduling maximum user number and a third scheduling data total amount; the default pre-scheduling parameter set and the any pre-scheduling parameter set contain the same pre-scheduling minimum interval period;

the updating the default pre-scheduling parameter set according to the first scheduling parameter set to obtain a fifth pre-scheduling parameter set includes:

and updating the first pre-scheduled maximum user number and the first scheduled data total amount in the default pre-scheduled parameter set according to the third pre-scheduled maximum user number and the third scheduled data total amount to obtain a pre-scheduled parameter set in the fifth pre-scheduled parameter set.

14. The method according to any of the claims 7 to 12, wherein one pre-scheduling parameter set comprises one or more of the following information:

15. A communications apparatus comprising means for performing the method of any of claims 1-6.

16. A communications apparatus, comprising means for performing the method of any of claims 7-14.

17. A communication system comprising an access network device for performing the method of any of claims 1 to 6 and an application function network element for performing the method of any of claims 7 to 14.