WO2021062700A1

WO2021062700A1 - Data transmission method, apparatus and computer readable storage medium

Info

Publication number: WO2021062700A1
Application number: PCT/CN2019/109595
Authority: WO
Inventors: 黄曲芳; 娄崇
Original assignee: 华为技术有限公司
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-04-08

Abstract

Provided is a data transmission method comprising: a first access network device determines a first QoS parameter according to at least two quality of service QoS parameters; the first access network device transmits a first wireless resource configuration to a terminal device, and the first wireless resource configuration is determined based on the first QoS parameter, and is applied to the data transmission between the first access network device and the terminal device, or between the terminal device and another terminal device. In the above technical solution, the access network device may arbitrate between or among a plurality of QoS requirements, and determine a QoS parameter based on the arbitration result, and determine the corresponding wireless resource configuration according to the determined QoS parameter.

Description

Data transmission method, device and computer readable storage medium

Technical field

This application relates to the field of communications, and more specifically, to methods, devices, and computer-readable storage media for data transmission.

Background technique

Quality of service (QoS) refers to the ability of a network to use various basic technologies to provide better service capabilities for specified network communications. It is a security mechanism for the network and can be used to solve problems such as network delay and congestion. A technology. This technology increases the predictability of network performance, and can effectively allocate network bandwidth and make more reasonable use of network resources.

When the service source needs to initiate a service to the terminal device, it can initiate a service request to the core network device. The core network device can determine the QoS requirement of the service to be transmitted according to the type of service, the source of the service, and other information, and notify the access network device of the QoS requirement. The access network equipment determines the QoS requirements that can be met based on the current network load and other factors such as hardware processing capabilities and network architecture. If the access network equipment can meet the QoS requirement, it can transmit the data of the service. If the access network device does not meet the QoS requirement, it can refuse to transmit the data of the service.

Summary of the invention

This application provides a data transmission method, device, and computer-readable storage medium. Access network equipment can negotiate QoS requirements, determine a QoS parameter from at least two QoS parameters, and determine it according to the determined QoS parameter Corresponding wireless resource configuration.

In the first aspect, a data transmission method is provided. The method may be executed by a first access network device or a component used for the first access network device, and the component may be, for example, a chip. The method includes: a first access network device determines a first QoS parameter according to at least two quality of service QoS parameters; the first access network device sends a first wireless resource configuration to a terminal device, and the first wireless resource configuration is Determined according to the first QoS parameter, the first radio resource configuration is used between the first access network device and the terminal device, or used for data transmission between the terminal device and the terminal device.

In a possible implementation manner, the first QoS parameter and the at least two QoS parameters belong to one protocol data unit PDU session.

In another possible implementation manner, the method further includes: the first access network device receives a service bearer request message sent by a second access network device, and the service bearer request message carries the at least two QoS parameters, wherein the second access network device is the source network device of the terminal device, and the first access network device is the target network device of the terminal device.

In the above technical solution, the first access network device as the target access network device can obtain at least two QoS parameters from the second access network device as the source access network device, and select from the at least two QoS parameters A QoS parameter that can be satisfied by itself, and the corresponding wireless resource configuration is determined according to the determined QoS parameter.

In another possible implementation manner, the first access network device selects one QoS parameter from the at least two QoS parameters as the first QoS parameter.

In the above technical solution, the first access network device can directly select one of the at least two QoS parameters sent by the second access network device as the first QoS parameter, which is relatively simple to implement.

In another possible implementation manner, the method further includes: the first access network device notifying the core network device of the first QoS parameter.

In the above technical solution, the first access network device may also notify the core network device of the determined first QoS parameter, so that the core network device side can respond to needs based on the first QoS parameter determined by the first access network device. The transmitted data is adjusted so that the adjusted data meets the first QoS parameter determined by the first access network device.

In a second aspect, a data transmission method is provided, which may be executed by a first access network device or a component used for the first access network device, and the component may be, for example, a chip. The method includes: a first access network device determines a second QoS parameter according to a currently used first quality of service QoS parameter; the first access network device sends a second wireless resource configuration to a terminal device, and the second wireless The resource configuration is determined according to the second QoS parameter, and the second wireless resource configuration is used between the first access network device and the terminal device, or used for data exchange between the terminal device and the terminal device. transmission.

In a possible implementation manner, the second QoS parameter and the first QoS parameter belong to one PDU session.

In another possible implementation manner, the position of the second QoS parameter in the QoS parameter list is higher than the position of the first QoS parameter in the QoS parameter list.

In a third aspect, a data transmission method is provided. The method may be executed by a terminal device or a component for the terminal device, and the component may be, for example, a chip. The method includes: a terminal device receives a first wireless resource configuration, the first wireless resource configuration is used between the terminal device and an access network device, or used for data transmission between the terminal device and the terminal device , The first wireless resource configuration is different from the second wireless resource configuration currently used by the terminal device; the terminal device processes the data packets in the buffer according to the second wireless resource configuration, and according to the first wireless resource configuration The resource configuration processes the newly received data packet; or the terminal device processes the data packet in the buffer and the newly received data packet according to the first wireless resource configuration.

In a possible implementation manner, the first radio resource configuration and the second radio resource configuration include the priority of the first logical channel, and the terminal device is configured according to the first logical channel in the first radio resource configuration. The priority of is higher than the priority of the first logical channel in the second wireless resource configuration, and it is determined that the data to be sent in the buffer corresponding to the first logical channel is equal to the arrival of new data.

In another possible implementation manner, the first wireless resource configuration includes a first discard timer parameter of the PDCP layer of the data convergence protocol, and the second wireless resource configuration includes a second discard timer parameter, and the terminal The device processes the data packet in the buffer according to the second discard timer parameter; the terminal device processes the newly received data packet according to the first discard timer parameter. Or the terminal device processes the data packet in the buffer and the newly received data packet according to the first discard timer parameter.

In another possible implementation manner, the first radio resource configuration includes the number of first radio link control RLC retransmissions, and the second radio resource configuration includes the second number of RLC retransmissions, and the terminal device is based on Whether the second RLC retransmission times of the data packet is greater than the first RLC retransmission times is determined whether to retransmit the data packet.

In a fourth aspect, a data transmission device is provided, and the device includes:

A determining module, configured to determine the first QoS parameter according to at least two quality of service QoS parameters;

A sending module, configured to send a first wireless resource configuration to a terminal device, where the first wireless resource configuration is determined according to the first QoS parameter, and the first wireless resource configuration is for the first access network device And the terminal device, or used for data transmission between the terminal device and the terminal device.

In another possible implementation manner, the device further includes:

The receiving module is configured to receive a service bearer request message sent by a second access network device, where the service bearer request message carries the at least two QoS parameters, where the second access network device is the terminal device The source network device of the terminal device, the first access network device is the target network device of the terminal device.

In another possible implementation manner, the determining module is specifically configured to select one QoS parameter from the at least two QoS parameters as the first QoS parameter.

In another possible implementation manner, the sending module is further configured to notify the core network device of the first QoS parameter.

It can be understood that the data transmission apparatus of the fourth aspect may be the first access network device, or may be a component (for example, a chip or a circuit) that can be used for the first access network device.

In a fifth aspect, a data transmission device is provided, and the device includes:

The determining module is configured to determine the second QoS parameter according to the currently used first quality of service QoS parameter;

A sending module, configured to send a second wireless resource configuration to a terminal device, where the second wireless resource configuration is determined according to the second QoS parameter, and the second wireless resource configuration is used for the first access network device And the terminal device, or used for data transmission between the terminal device and the terminal device.

It can be understood that the data transmission apparatus of the fifth aspect may be the first access network device, or may be a component (for example, a chip or a circuit) that can be used for the first access network device.

In a sixth aspect, a data transmission device is provided, and the device includes:

A receiving module, configured to receive a first wireless resource configuration, where the first wireless resource configuration is used between the terminal device and the access network device, or used for data transmission between the terminal device and the terminal device, The first wireless resource configuration is different from the second wireless resource configuration currently used by the terminal device;

The first processing module is configured to process the data packet in the buffer according to the second wireless resource configuration, and process the newly received data packet according to the first wireless resource configuration; or

The second processing module is configured to process the data packet in the buffer and the newly received data packet according to the first wireless resource configuration.

It can be understood that the data transmission device in the sixth aspect may be a terminal device, or a component (such as a chip or a circuit) that can be used in a terminal device.

In a possible implementation manner, the first radio resource configuration and the second radio resource configuration include the priority of the first logical channel,

The first processing module or the second processing module is specifically configured to: according to the priority of the first logical channel in the first wireless resource configuration, it is higher than the priority of the first logical channel in the second wireless resource configuration Priority, determining that the data to be sent in the buffer corresponding to the first logical channel is equal to the arrival of new data.

In another possible implementation manner, the first wireless resource configuration includes a first discard timer parameter of the PDCP layer of the data convergence protocol, and the second wireless resource configuration includes a second discard timer parameter,

The first processing module is specifically configured to: process the data packet in the buffer according to the second discard timer parameter; process the newly received data packet according to the first discard timer parameter.

The second processing module is specifically configured to process the data packet in the buffer and the newly received data packet according to the first discard timer parameter.

In another possible implementation manner, the first radio resource configuration includes the number of first radio link control RLC retransmissions, and the second radio resource configuration includes the second number of RLC retransmissions,

The second processing module is specifically configured to determine whether to retransmit the data packet according to whether the second RLC retransmission times of the data packet is greater than the first RLC retransmission times.

In a seventh aspect, a communication processing device is provided, including: the communication processing device provided by the present application has the function of realizing the behavior of the first access network device in the foregoing method aspect, and includes being used to perform the steps or functions described in the foregoing method Corresponding parts (means). The steps or functions can be realized by software, or by hardware (such as a circuit), or by a combination of hardware and software. Wherein, the communication processing device may be a chip or the like.

In a possible design, the foregoing communication processing apparatus includes one or more processors. The one or more processors are configured to support the communication processing apparatus to perform the corresponding function of the first access network device in the above method.

Optionally, the communication processing device may further include one or more memories, where the memory is configured to be coupled with the processor, and stores necessary program instructions and/or data of the communication processing device. The one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.

The memory may be a storage unit inside the processor, or an external storage unit independent of the processor, or a component including a storage unit inside the processor and an external storage unit independent of the processor.

Optionally, the processor may be a general-purpose processor, which may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, integrated circuit, etc.; when implemented by software, the processor may be a general-purpose processor, which is implemented by reading the software code stored in the memory, and the memory may Integrated in the processor, can be located outside the processor, and exist independently.

Optionally, the communication processing apparatus may further include one or more communication units, and the communication unit may be a transceiver or a transceiver circuit. Optionally, the transceiver may also be an input/output circuit or interface.

In another possible design, the foregoing communication processing device includes a transceiver, a processor, and a memory. The processor is used to control the transceiver or the input/output circuit to send and receive signals, the memory is used to store a computer program, and the processor is used to run the computer program in the memory, so that the communication processing device executes the first aspect or any of the first aspects. In a possible implementation manner, the method completed by the first access network device. Or, the communication processing apparatus is caused to execute the method completed by the first access network device in the second aspect or any one of the possible implementation manners of the second aspect.

In an eighth aspect, a communication processing device is provided. The communication processing device provided by the present application has the function of realizing the behavior of the terminal device in the above-mentioned method aspect, and it includes means for executing the steps or functions described in the above-mentioned method. ). The steps or functions can be realized by software, or by hardware (such as a circuit), or by a combination of hardware and software. Wherein, the terminal device may be a chip or the like.

In a possible design, the foregoing communication processing apparatus includes one or more processors. The one or more processors are configured to support the communication processing apparatus to perform the corresponding functions of the terminal device in the foregoing method.

In another possible design, the foregoing communication processing device includes a transceiver, a processor, and a memory. The processor is used to control the transceiver or the input/output circuit to send and receive signals, the memory is used to store a computer program, and the processor is used to run the computer program in the memory so that the communication processing device executes any of the third aspect or the third aspect. A possible implementation method for terminal equipment to complete.

In a ninth aspect, a computer-readable storage medium is provided, including a computer program, which when the computer program runs on a first access network device, causes the first access network device to execute the first aspect or the first aspect The method described in any one of the implementations. Or the first access network device is made to execute the method described in the second aspect or any one of the implementation manners of the second aspect.

In a tenth aspect, a computer-readable storage medium is provided, including a computer program, which when the computer program runs on a terminal device, causes the terminal device to execute the third aspect or any one of the implementation manners described in the third aspect method.

In an eleventh aspect, a computer program product is provided. When the computer program product runs on a computer, the computer executes the method described in the first aspect or any one of the first aspects. Or the computer is made to execute the method described in the second aspect or any one of the second aspect implementation manners.

In a twelfth aspect, a computer program product is provided. When the computer program product runs on a computer, the computer executes the method described in the third aspect or any one of the implementation manners of the third aspect.

Description of the drawings

FIG. 1 is a schematic diagram of a scene of a communication system 100 applicable to an embodiment of the present application.

FIG. 2 is a schematic diagram of a communication system 200 applicable to the present application.

FIG. 3 is a schematic flowchart of a data transmission method provided by an embodiment of the present application.

FIG. 4 is a schematic flowchart of another data transmission method provided by an embodiment of the present application.

FIG. 5 is a schematic flowchart of another data transmission method provided by an embodiment of the present application.

FIG. 6 is a schematic flowchart of another data transmission method provided by an embodiment of the present application.

FIG. 7 is a schematic flowchart of another data transmission method provided by an embodiment of the present application.

FIG. 8 is a schematic block diagram of a data transmission device 800 provided by an embodiment of the present application.

FIG. 9 is a schematic block diagram of a data transmission device 900 provided by an embodiment of the present application.

FIG. 10 is a schematic block diagram of a data transmission device 1000 according to an embodiment of the present application.

FIG. 11 is a schematic structural diagram of a communication processing device 50 provided by an embodiment of the present application.

FIG. 12 is a schematic structural diagram of another communication processing device 60 provided by an embodiment of the present application.

FIG. 13 is a schematic structural diagram of another communication processing device 70 provided by an embodiment of the present application.

FIG. 14 is a schematic structural diagram of another communication processing device 80 provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below in conjunction with the accompanying drawings.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, and LTE time division duplex (LTE) systems. Time Division Duplex (TDD), worldwide interoperability for microwave access (WiMAX) communication system, the future 5th generation (5G) system or new radio (NR), etc.

In the embodiments of this application, the type of terminal equipment is not specifically limited. For example, it may be user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile Equipment, user terminal, wireless access network equipment, user agent or user device. Terminals may include, but are not limited to, mobile stations (MS), mobile phones (mobile phones), user equipment (UE), mobile phones (handset), portable equipment (portable equipment), cellular phones, cordless phones, conversations Initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital processing (personal digital assistant, PDA), and logistics use radio frequency identification (RFID) terminal equipment, Handheld devices with wireless communication capabilities, computing devices or other devices connected to wireless modems, in-vehicle devices, wearable devices, Internet of Things, terminal devices in vehicle networks, and terminal devices in future 5G networks or future evolution of public land mobile The terminal equipment in the network (public land mobile network, PLMN) network, etc.

As an example and not a limitation, in the embodiments of the present application, wearable devices can also be referred to as wearable smart devices. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, Gloves, watches, clothing and shoes, etc. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets and smart jewelry for physical sign monitoring.

In the embodiments of the application, the type of access network equipment is not specifically limited. It can be any equipment used to communicate with terminal equipment. The access network equipment can be, for example, an evolution in a long term evolution (LTE) system. Type base station (evolutional Node B, eNB or eNodeB), it may also be a wireless controller in the cloud radio access network (cloud radio access network, CRAN) scenario, or the access network device may be, for example, a relay station, an access point, In-vehicle equipment, wearable equipment, and access network equipment in the future 5G network or access network equipment in the future evolved PLMN network, etc.

In addition, in the embodiment of the present application, the access network device provides services for the cell, and the terminal device communicates with the access network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to an access network device (such as a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cell here may include: Metro cell and micro cell. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.

The method provided in the embodiments of the present application can be applied to a terminal device or an access network device. The terminal device or an access network device can include a hardware layer, an operating system layer running on the hardware layer, and an operating system layer Application layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems or windows operating systems. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Moreover, in the embodiment of the present application, the specific structure of the execution body of the data transmission method is not particularly limited in the embodiment of the present application, as long as the program that records the code of the data transmission method of the embodiment of the present application can be run to It is sufficient to communicate according to the data transmission method of the embodiment of the present application. For example, the execution subject of the data transmission in the embodiment of the present application may be a terminal device or an access network device, or a terminal device or an access network device that can be called Program and execute the functional modules of the program.

In addition, various aspects or features of the embodiments of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques. The term "article of manufacture" used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

FIG. 1 is a schematic diagram of a scene of a communication system 100 applicable to an embodiment of the present application. As shown in FIG. 1, the communication system 100 includes an access network device 102, and the access network device 102 may include multiple antenna groups. Each antenna group may include multiple antennas. For example, one antenna group may include

antennas

104 and 106, another antenna group may include

antennas

106 and 110, and an additional group may include

antennas

112 and 114. Each antenna group in Fig. 1 shows 2 antennas, however, more or fewer antennas can be used for each group. The access network device 102 may additionally include a transmitter chain and a receiver chain. Those of ordinary skill in the art can understand that they can each include multiple components related to signal transmission and reception (such as processors, modulators, multiplexers). , Demodulator, demultiplexer or antenna, etc.).

The access network device 102 may communicate with multiple terminal devices (for example, the terminal device 116 and the terminal device 122). However, it is understood that the access network device 102 can communicate with any number of terminal devices similar to the

terminal device

116 or 122. The

terminal devices

116 and 122 may be, for example, cellular phones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable devices for communicating on the wireless communication system 100. equipment.

As shown in FIG. 1, the terminal device 116 communicates with

antennas

112 and 114, where the

antennas

112 and 114 send information to the terminal device 116 through the link 116 and receive information from the terminal device 116 through the link 120. In addition, the terminal device 122 communicates with the

antennas

104 and 106, where the

antennas

104 and 106 send information to the terminal device 122 through the link 124, and receive information from the terminal device 122 through the link 126.

For example, in a frequency division duplex (FDD) system, for example, link 116 may use a different frequency band from that used by link 120, and link 124 may use a different frequency band from that used by link 126.

For another example, in a time division duplex (TDD) system and a full duplex (full duplex) system, link 116 and link 120 may use a common frequency band, and link 124 and link 126 may use a common frequency band.

Each set of antennas and/or areas designed for communication is referred to as a sector of the access network device 102. For example, the antenna group may be designed to communicate with terminal devices in a sector of the coverage area of the access network device 102. When the access network device 102 communicates with the

terminal devices

116 and 122 through the

links

116 and 124, respectively, the transmitting antenna of the access network device 102 can use beamforming to improve the signal-to-noise ratio of the

links

116 and 124. In addition, compared with the way that the access network device sends signals to all of its terminal devices through a single antenna, when the access network device 102 uses beamforming to send signals to the

terminal devices

116 and 122 that are randomly dispersed in the relevant coverage area, it is similar. Mobile devices in neighboring cells will experience less interference.

At a given time, the access network device 102, the terminal device 116, or the terminal device 122 may be a wireless communication sending device and/or a wireless communication receiving device. When sending data, the wireless communication sending device can encode the data for transmission. Specifically, the wireless communication sending device may acquire (for example, generate, receive from other communication devices, or store in a memory, etc.) a certain number of data bits to be sent to the wireless communication receiving device through a channel. Such data bits can be included in a transmission block (or multiple transmission blocks) of data, and the transmission block can be segmented to generate multiple code blocks.

In addition, the communication system 100 may be a public land mobile network PLMN network or a device-to-device (D2D) network or a machine-to-machine (M2M) network or other networks. Figure 1 is only an example for ease of understanding The simplified schematic diagram of the network may also include other access network equipment, which is not shown in Figure 1.

When data streams are transmitted in the network, when the network is congested, all data streams may be discarded. In order to meet the different service quality requirements of users for different applications, the network is required to allocate and schedule resources according to user requirements, and provide different service qualities for different data streams. For example, give priority to real-time and important data messages. For another example, for ordinary data messages with low real-time performance, lower processing priority is provided, and they are even discarded when congested. Therefore, quality of service (QoS) came into being. QoS refers to the ability of a network to use various basic technologies to provide better service capabilities for specified network communications. It is a security mechanism for the network and can be used A technology to solve problems such as network delay and congestion. It increases the predictability of network performance, and can effectively allocate network bandwidth and make more reasonable use of network resources.

Please refer to FIG. 2 for a possible application scenario. In FIG. 2, the network may include a service source 210, a core network device 220, an access network device 230, and a terminal device 240.

When the service source 210 needs to initiate a service to the terminal device 240, it may initiate a service request to the core network device 220. The core network device 220 may determine the QoS requirement of the service to be transmitted according to information such as the type of service and the initiator, and notify the access network device 230 of the QoS requirement. The access network device 230 determines the QoS requirements that can be met based on the current network load and other factors, such as hardware processing capabilities and network architecture. The access network device 230 may also configure wireless resource parameters for data transmission with the terminal device 240 according to the determined QoS requirements, and send the wireless resource parameter configuration to the terminal device 240. The terminal device 240 can perform data transmission according to the wireless resource parameter configuration. For example, the service flow sent by the service source 210 is received.

Specifically, the QoS requirements can be described through the following parameters.

(1) Guaranteed bit rate (GBR)/non-GBR GBR refers to the minimum bit rate that the system guarantees to bear. Even when network resources are tight, the corresponding bit rate can be maintained. On the contrary, non-GBR means that under the condition of network congestion, the service (or bearer) needs to withstand the requirement of lowering the speed.

(2) Packet delay budget (PDB)

PDB represents the upper limit of the maximum transmission delay of each data packet by the access network device.

(3) Packet error rate (PER)

PER represents the transmission error probability of each data packet by the access network equipment.

(4), the default maximum data burst volume (default maximum data burst volume)

For services with a particularly small data packet delay budget PDB, in order to prevent the transmission of large amounts of data in a short period of time, the formation of data peaks cannot be met by the access network equipment. Therefore, the maximum amount of data transmitted in a period of time can be specified by the default maximum data burst parameter.

(5), the default priority (default priority level)

The default priority parameter indicates the relative priority of the service. Generally, the access network device can determine the priority when allocating transmission resources according to this parameter.

It should be noted that, in the communication system shown in FIG. 1 and FIG. 2, the functions of the terminal device can be realized by hardware components inside the terminal device, and the hardware components may be the processor inside the terminal device. And/or programmable chips. Optionally, the chip may be implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD). The above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), and a system on a chip. , SOC) or any combination thereof. The functions of the access network device may be implemented by hardware components inside the network device, and the hardware components may be a processor and/or a programmable chip inside the access network device. For specific details about the processor and/or programmable chip inside the access network device, please refer to the description of the terminal device above, which will not be repeated here.

In the prior art, as shown in FIG. 2, the core network device 220 can determine a QoS requirement of the service to be transmitted according to information such as the type of service and the initiator, and notify the access network device 230 of the QoS requirement. The access network device 230 determines whether the QoS requirement can be met based on the current network load and other factors, such as hardware processing capabilities, network architecture, etc. If the access network device 230 can meet the QoS requirement, it can transmit data of the service. If the access network device 230 does not meet the QoS requirement, it may refuse to transmit the data of the service. In the above determination process of the QoS requirement, the access network device 230 has only two results: "accept" and "not accept".

In the data transmission method provided by the embodiment of the present application, the access network device can negotiate QoS requirements, determine a QoS parameter from at least two QoS parameters, and determine the corresponding wireless resource configuration according to the determined QoS parameter. The technical solution provided by the embodiment of the present application will be described in detail below with reference to FIG. 3.

FIG. 3 is a schematic flowchart of a data transmission method provided by an embodiment of the present application. The method shown in FIG. 3 may include steps 310-320, and steps 310-320 will be described in detail below.

Step 310: The first access network device determines the first QoS parameter according to the at least two quality of service QoS parameters.

There are multiple ways for the first access network device to determine the first QoS parameter based on the at least two quality of service QoS parameters. In a possible implementation manner, the first access network device selects from a list including at least two QoS parameters One as the first QoS parameter. In another possible implementation manner, the first access network device determines a first QoS parameter according to at least two QoS parameters, and the first QoS parameter does not belong to the foregoing list including the at least two QoS parameters. For the specific implementation, please refer to the description below, which will not be repeated here.

It should be understood that the at least two QoS parameters belong to the same PDU session (session).

Step 320: The first access network device sends a first wireless resource configuration to the terminal device.

It should be understood that, after determining the first QoS parameter, the first access network device may determine the corresponding first radio resource configuration according to the first QoS parameter, and send the determined first radio resource configuration to the terminal device.

In the embodiment of the present application, the configuration of the first radio resource is not specifically limited. For example, the first wireless resource configuration may be used for data transmission between the first access network device and the terminal device. For another example, the first wireless resource configuration may also be used for data transmission between the terminal device and the terminal device.

In the following, taking the reduction of the QoS service quality of a certain service flow/data flow of the terminal device in a handover scenario as an example, with reference to FIG. 4, the data transmission method provided in the embodiment of the present application will be described in detail. The example shown in FIG. 4 is only to help those skilled in the art understand the embodiments of the present application, and is not intended to limit the application embodiments to the specific numerical values or specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the example of FIG. 4 given, and such modifications and changes also fall within the scope of the embodiments of the present application.

It should be noted that the scenario in which a PDU session (session) is transferred from a source access network device to a target access network device can also be applied to the method in FIG. 4.

Fig. 4 is another data transmission method provided by an embodiment of the present application. The method may include steps 410-480. Steps 405-480 will be described in detail below.

It should be understood that the source access network device in FIG. 4 may correspond to the second access network device described above, and the target access network device may correspond to the first access network device described above.

Step 410: The source access network device sends at least two QoS profiles to the target access network device.

Optionally, step 405 is further included before step 410. In step 405, the source access network device can transmit data with the terminal device. The source access network device can use mobility management algorithms for the terminal device according to different needs. Distribute different types of measurement tasks. The terminal device can perform measurement according to the measurement task issued by the source access network device. If the terminal device finds that the measurement environment meets the event described in the measurement task, it can report to the source access network device through a measurement report. Specifically, optionally, step 406 is further included before step 410. In step 406, the terminal device may report a measurement report to the source access network device.

After receiving the measurement report (measurement report) sent by the terminal device, the source access network device determines whether it needs to send a service bearer request message to the target access network device.

It should be noted that in the handover scenario, the source access network device is the source access network device in the terminal device handover process, and the target access network device is the target access network device in the terminal device handover process. In a service migration scenario, for example, a part of the service of a terminal device is migrated from a first access network device to a second access network device. The first access network device may be referred to as the source access network device, and the second access network device may be referred to as the source access network device. The access network device may be referred to as the target access network device.

Optionally, as an example, in a handover scenario, the service bearer request message may be a handover request message. In the following, a switching scenario is taken as an example to describe the data transmission method provided in the embodiment of the present application.

The source access network device may carry at least two QoS profiles in the service bearer request message sent to the target access network device. The at least two QoS profiles may be all QoS profiles notified by the core network element authentication management function (AMF) to the source access network device, or may also be in the QoS profile notified by the AMF to the source access network device The embodiments of this application do not specifically limit this part.

Specifically, the at least two QoS profiles carried above may include the QoS profile used by the service flow/data flow transmitted between the source access network device and the terminal device, and may also include at least one backup QoS profile. The QoS profile used by the source access network device may be one of the QoS profile list notified by the AMF, or it may not be one of the QoS profile list notified by the AMF, but the source access network device itself according to the QoS profile list notified by the AMF A generated QoS profile. Optionally, if the QoS profile used by the source access network device is a QoS profile generated by itself, the source access network device also needs to carry this QoS profile in the service bearer request message for reference by the target access network device. Optionally, the source access network device may indicate to the target access network device in the service bearer request message that the QoS profile carried in the service bearer message is not obtained from AMF, but is a QoS generated by the source access network device itself. profile.

Optionally, in some embodiments, a slice function is introduced in the 5G network. The slice is a functional module for core network device management, and the slice corresponds to the QoS profile. For a certain slice, the core network can learn the cells that can support the slice function. In the handover scenario, if the terminal device transmits the service flow/data flow through slices, the source access network device can also carry slice identification (slice ID) and other information in the above service bearer request message and send it to Target access network equipment.

For ease of description, three possible QoS profiles carried in a possible service bearer request message are listed below.

alternative QoS profile A (GBR=2Mbps, PDB=15ms)

alternative QoS profile B (GBR=1Mbps, PDB=10ms)

alternative QoS profile C (GBR=1Mbps, PDB=20ms)

Among them, the QoS profile used by the source access network device to transmit the above service flow/data flow is QoS profile A (GBR=2Mbps, PDB=15ms).

Step 420: The target access network device determines the satisfied QoS profile according to at least two QoS profiles sent by the source access network device.

As an implementation, the source access network device may send a service bearer request message to the target access network device, and the service bearer request message carries at least two QoS profiles. After the target access network device receives the service bearer request message sent by the source access network device, it can store at least two QoS profiles carried in the service bearer request message, and determine the QoS profile that can be satisfied according to the at least two QoS profiles. For example, the target access network device can determine the QoS profile that can be satisfied based on the current network load and other factors, such as hardware processing capabilities and network architecture.

In a possible implementation manner, the target access network device selects a QoS profile that it can satisfy from at least two QoS profiles, and determines the corresponding radio resource configuration according to the QoS profile. Specifically, the target access network device judges whether its radio resources can satisfy these QoS profiles according to the order in the QoS profile list. If the previous QoS profile can be satisfied, select the previous one. If the previous QoS profile cannot be satisfied, the latter is selected.

It should be understood that the above-mentioned at least two QoS profiles are arranged in the QoS profile list in a certain order.

Take the above three QoS profiles carried in the service bearer request message sent by the source access network device to the target access network device as an example. The QoS profile used by the source access network device to transmit the above service flow/data flow is QoS profile A (GBR=2Mbps, PDB=15ms), the target access network device deteriorates according to the air interface conditions, and the current network load becomes larger, etc. The reason is to determine the need to reduce the quality of service corresponding to the QoS profile used by the source access network device. Specifically, the target access network device can select a QoS profile that can be satisfied by its own radio resources from the three QoS profiles. For example, the target access network device selects QoS profile B (GBR=1Mbps, PDB=10ms).

In another possible implementation manner, the target access network device generates a QoS profile by itself according to at least two QoS profiles. Specifically, when the target access network device finds that the granularity of the QoS profile provided by the source access network device is too coarse, it can generate a QoS profile by itself. The three QoS profiles listed in the above article are examples. The target access network device finds that it cannot meet the QoS profile A (GBR=2Mbps, PDB=15ms) due to the deterioration of the air interface conditions and the current network load. It can meet the QoS profile B (GBR=1Mbps, PDB=10ms). However, in fact, the target access network equipment can also satisfy a QoS profile between QoS profile A and QoS profile B, such as QoS profile A’. In this case, the target access network device can generate a QoS profile by itself. As an example, the QoS profile A'(GBR=2Mbps, PDB=10ms) generated by the target access network device itself.

It should be noted that the QoS profile separately generated by the target access network device cannot be lower than the QoS profile of the last item in the QoS profile list provided by the source access network device. If the QoS profile list provided by the source access network device is not arranged in a certain order, the QoS profile separately generated by the target access network device cannot be lower than the QoS profile with the lowest service quality in the list.

Optionally, in some embodiments, only certain services can support the target access network device to separately generate a QoS profile. Whether it is supported, the source access network device can notify the target access network device.

Optionally, in some embodiments, only certain terminal devices can support the target access network device to separately generate a QoS profile. Whether it is supported, the source access network device can notify the target access network device.

Step 430: The target access network device sends the determined QoS profile to the source access network device.

Specifically, the target access network device may send a handover preparation message to the source access network device, where the handover preparation message carries the QoS profile determined by the target access network device. It should be understood that step 430 is optional, that is, the source access network device may also not need to know what QoS profile the target access network device has selected to transmit the foregoing service flow/data flow.

For the aforementioned target access network device to select a QoS profile that it can satisfy from at least two QoS profiles, the target access network device can set the selected QoS profile, for example, QoS profile B (GBR = 1Mbps, PDB = 10ms) sent to the source access network device. Specifically, the index number of the QoS profile B in the list can be sent to the source access network device.

For the above-mentioned implementation of the target access network device generating a QoS profile based on at least two QoS profiles, the target access network device can use the generated QoS profile, for example, QoS profile A'(GBR=2Mbps, PDB=10ms) All the parameters in are sent to the source access network device. And instruct the source access network device and the target access network device to prepare to use QoS profile A'to transmit the above-mentioned service flow/data flow.

The target access network device/source access network device can notify the AMF of the QoS profile determined by the target access network device. There are two specific implementation methods. Among them, one implementation manner is that the source access network device notifies the AMF of the QoS profile determined by the target access network device. Another implementation method is that the target access network device notifies the AMF of its determined QoS profile. The above two implementation manners are described in detail below in conjunction with steps 440-450 respectively.

Step 440: The source access network device sends the QoS profile determined by the target access network device to the AMF.

If the source access network device receives the determined QoS profile sent by the target access network device, for example, after the source access network device receives the QoS profile in step 430, the source access network device can transfer the target access network device The determined QoS profile is sent to AMF. In other words, the AMF can learn the QoS profile used by the target access network device to transmit the foregoing service flow/data flow through the source access network device.

Specifically, as an example, if the QoS profile used by the target access network device to transmit the above service flow/data flow is a profile selected from the QoS profile list provided by the source base station, the source access network device only needs to select The information of the QoS profile, for example, the index number of the QoS profile in the list is reported to the AMF. As another example, if the target base station separately generates a QoS profile by itself, the source access network device needs to report the specific values of all the parameters of the generated QoS profile to the AMF. For specific parameters related to QoS profile, please refer to the above description, which will not be repeated here.

Step 450: The target access network device notifies the AMF that the target access network device determines the QoS profile.

After the target access network device determines the QoS profile used to transmit the foregoing service flow/data flow in step 420, it may report the QoS profile to the AMF. As an example, if the QoS profile used by the target access network device to transmit the above service flow/data flow is a profile selected from the QoS profile list provided by the source access network device, the target access network device only needs to select The information of the predetermined QoS profile, for example, the index number of the QoS profile is reported to the AMF. As another example, if the target base station generates a QoS profile by itself, the target access network device needs to report the specific values of all parameters of the generated QoS profile to the AMF. For specific parameters related to QoS profile, please refer to the above description, which will not be repeated here.

It should be noted that, in this embodiment of the present application, either the above step 440 is used to notify the AMF that the target access network device determines the QoS profile, or the above step 450 is used to notify the AMF that the target access network device determines the QoS profile. Either one of the above two steps is executed, whether step 440 or step 450 is specifically executed, which is not specifically limited in this application.

It is also worth noting that if step 450 is performed, and there is no sequence relationship between step 450 and step 430, step 450 can be performed first, and then step 430; or step 430 can be performed first, and then step 450; or, at the same time Step 430 and step 450 are performed, which is not limited in the embodiment of the present application. In other words, the target access network device may first send the determined QoS profile to the source access network device, and then report the QoS profile determined by the target access network device to the AMF. Or the target access network device may also first report the QoS profile determined by the target access network device to the AMF, and then send the determined QoS profile to the source access network device. Or the target access network device can also send the determined QoS profile to the AMF and the source access network device at the same time.

Step 460: The source access network device sends a handover command to the terminal device.

The source access network device may send a handover command to the terminal device, and the embodiment of the application does not specifically limit the parameters included in the handover command. As an example, the handover command may include the wireless resource parameter configuration determined by the target access network device for the selected QoS profile, so that the terminal device can configure the wireless resource parameters according to the target access network device, and the target access Network equipment for data transmission. As another example, the handover command may include random access and other parameters. After the terminal device accesses the target access network device according to the random access parameters, it then sends the target access network device to the terminal device for the selected QoS The wireless resource parameter configuration determined by the profile allows the terminal device to perform data transmission with the target access network device according to the wireless resource parameter configured by the target access network device.

It should be understood that there are multiple radio resource parameters in the embodiments of the present application. For example, they may include but are not limited to: PDCP layer parameters, RLC layer parameters, and MAC layer parameters. As an example and not limitation, the parameters of the PDCP layer may include discard timers, etc., and the parameters of the RLC layer may include the maximum number of RLC retransmissions, acknowledged mode (AM)/unacknowledged mode (UM). ), etc. The parameters of the MAC layer may include the priority of the logical channel and so on.

Step 470: The source access network device initiates a path switch (path switch) process to the AMF.

It should be understood that step 470 is optional. Optionally, the source access network device can initiate a path switch process to the AMF to change the data channel from the source access network device to the target access network device. That is to say, through the path switch process, the data channel through which the AMF sends the above-mentioned service flow/data flow to the terminal device is replaced, and the data channel between the AMF and the source access network device is replaced with the one from the AMF to the target access network device. Data channel between. AMF can transmit data with terminal equipment through the data channel with the target access network equipment.

In the embodiment of the present application, the AMF may determine the QoS profile according to the target access network device reported in step 440 or step 450, and determine whether to process the service stream/data stream sent to the target access network device for transmission. For example, according to the QoS profile used by the target access network device to transmit the above service stream/data stream, determine whether the service stream/data stream needs to be tailored so that the tailored service stream/data stream can meet the usage of the target access network equipment The quality of service corresponding to the QoS profile. A detailed description will be given below in conjunction with specific examples.

For example, the source access network device selects QoS profile A (GBR=2Mbps, PDB=15ms) to transmit the above service flow/data flow. When the terminal device switches to the target access network device, the target access network device selects QoS profile B (GBR=1Mbps, PDB=10ms) to transmit the above service flow/data flow. That is to say, the GBR service rate of the terminal equipment at the source access network equipment is 2 Mbps. After switching to the cell of the target access network equipment, the GBR service rate is changed to 1 Mbps. Therefore, the transmission of the target access network equipment to the terminal equipment can be reduced. The amount of data to realize the GBR service rate from 2Mbps to 1Mbps. There are multiple specific implementation manners for reducing the amount of data sent by the target access network device to the terminal device, which is not specifically limited in the embodiment of the present application.

As an example, the AMF may notify the user plane function (UPF) of the core network to reduce the rate of user data sent to the target access network device, thereby realizing the GBR service rate from 2Mbps to 1Mbps. Specifically, the AMF can notify the UPF to store user data in its own network element, and slowly transmit it to the target access network device over a longer period of time. In other words, reduce the rate at which UPF sends data to the target access network device, but do not discard the packet, and send it slowly. This will increase the storage time of the data packet. From the AMF to the target access network device, it increases the data. The transmission delay of the packet.

It should be noted that in this implementation manner, after the target access network device receives the data packet sent by the UPF, it needs to transmit to the terminal device through the air interface.

As another example, the AMF notifies the UPF to reduce the amount of user data sent to the target access network device, so that the GBR service rate is changed from 2 Mbps to 1 Mbps. Specifically, according to certain rules, AMF can notify UPF of data packets that need to be sent to the target access network device through the air interface, and send the data packets that need to be sent to the target access network device through the air interface to the target access network device. Data packets sent by the air interface to the target access network device are not sent to the target access network device.

As another example, the target access network device reduces the amount of user data sent to the terminal device. In this implementation manner, the AMF does not reduce the rate of user data sent to the target access network device. After the target access network device receives the user data, it determines the data packet that needs to be sent to the terminal device through the air interface according to certain rules. Data packets that need to be sent over the air interface can be sent to the terminal device, and data packets that do not need to be sent over the air interface are not sent to the terminal device.

Step 480: The terminal device accesses the cell of the target access network device, and transmits the service according to the determined QoS profile through the cell of the target access network device.

The terminal device accesses the cell of the target access network device, and performs data transmission through the QoS profile determined by the target access network device in step 420 to transmit the foregoing service flow/data flow.

It is worth noting that if the terminal device uses the QoS profile A'generated by the target access network device under the target access network device, the next time the terminal device is switched, the target access network device will switch the terminal device When reaching the cell under the second target access network device, it only needs to provide the second target access network device with its stored QoS profile list, that is, in step 410, the source access network device sends at least two items to the target access network device. This QoS profile is sufficient, and there is no need to provide a separately generated QoS profile A'to the second target access network device.

It should be noted that the QoS profile A'generated by the target access network device itself is not obtained from the AMF, that is, the QoS profile A'is not included in the QoS profile list notified by the AMF.

In the above technical solution, in a handover scenario of a terminal device, the source access network device can send at least one QoS profile to the target access network device, and the target access network device can determine a QoS profile from the at least one QoS profile. Compared with the QoS profile used by the source access network device during data transmission, the QoS profile reduces the QoS service quality of a certain service flow/data flow of the terminal device.

In the following, taking the improvement of the QoS service quality of a certain service flow/data flow of a terminal device in a handover scenario as an example, in conjunction with FIG. 5, the data transmission method provided in the embodiment of the present application will be described in detail. The example shown in FIG. 5 is only to help those skilled in the art understand the embodiments of the present application, and is not intended to limit the application embodiments to the specific numerical values or specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the example of FIG. 5 given, and such modifications and changes also fall within the scope of the embodiments of the present application.

It should be noted that the scenario in which the PDU session (session) is transferred from the source access network device to the target access network device can also be applied to the method in FIG. 5.

FIG. 5 is another data transmission method provided by an embodiment of the present application. The method may include steps 510-580, and steps 505-580 will be described in detail below.

Step 510: The source access network device sends at least two QoS profiles to the target access network device.

Optionally, step 505 is further included before step 510. In step 505, the source access network device can transmit data with the terminal device. Optionally, step 506 is further included before step 510. In step 506, the terminal device can Report a measurement report to the source access network device.

After receiving the measurement report (measurement report) sent by the terminal device, the source access network device determines whether it needs to send a service bearer request message to the target access network device. The service bearer request message carries at least two QoS profiles. The at least two QoS profiles may be all the QoS profiles notified by the AMF to the source access network device, or may also be part of the QoS profiles notified by the AMF to the source access network device, which are not specifically limited in the embodiment of this application . For details, please refer to the description in step 410, which will not be repeated here.

The three possible QoS profiles carried in a possible service bearer request message are as follows.

alternative QoS profile A (GBR=2Mbps, PDB=15ms)

alternative QoS profile B (GBR=1Mbps, PDB=10ms)

alternative QoS profile C (GBR=1Mbps, PDB=20ms)

Among them, the QoS profile used by the source access network device to transmit the above service flow/data flow is QoS profile B (GBR=1Mbps, PDB=10ms).

Step 520: The target access network device determines the satisfied QoS profile according to at least two QoS profiles sent by the source access network device.

The target access network device can determine the QoS profile that can be satisfied based on the current network load and other factors, such as hardware processing capabilities and network architecture. There are multiple specific implementation modes. In one possible implementation mode, the target access network device selects a QoS profile that it can satisfy from at least two QoS profiles. In another possible implementation manner, the target access network device generates a QoS profile by itself based on at least two QoS profiles. For details, please refer to the description in step 410, which will not be repeated here.

In the embodiment of this application, the QoS profile used by the source access network device to transmit the above service flow/data flow is QoS profile B (GBR=1Mbps, PDB=10ms), and the target access network device becomes better according to the air interface conditions. For reasons such as the decrease of the network load of the source access network, the level of the QoS profile used by the source access network equipment can be determined. Specifically, the target access network device can select a QoS profile that can be satisfied by its own radio resources from the three QoS profiles. For example, the target access network device selects QoS profile A (GBR=2Mbps, PDB=15ms).

Step 530: The target access network device sends the determined QoS profile to the source access network device.

Corresponding to step 430, please refer to the description in step 430 for details, which will not be repeated here.

Step 540: The source access network device sends the QoS profile determined by the target access network device to the AMF.

Corresponding to step 440, please refer to the description in step 440 for details, which will not be repeated here.

Step 550: The target access network device notifies the AMF that the target access network device determines the QoS profile.

Corresponds to step 450. For details, please refer to the description in step 450, which will not be repeated here.

Step 560: The source access network device sends a handover command to the terminal device.

Corresponding to step 460, please refer to the description in step 460 for details, which will not be repeated here.

Step 570: The source access network device initiates a path switch (path switch) process to the AMF.

Corresponding to step 570, please refer to the description in step 570 for details, which will not be repeated here.

Step 580: The terminal device accesses the cell of the target access network device, and transmits the service according to the determined QoS profile through the cell of the target access network device.

Corresponds to step 580. For details, please refer to the description in step 580, which will not be repeated here.

In the above technical solution, the source access network device can send at least one QoS profile to the target access network device, and the target access network device can determine a QoS profile from the at least one QoS profile. The QoS profile is relative to the source access network device. The QoS profile used by the device during data transmission can improve the QoS service quality of a certain service flow/data flow of the terminal device.

In the following, taking the improvement of the QoS service quality of a certain service flow/data flow of a terminal device in a non-handover scenario as an example, the data transmission method provided by the embodiment of the present application will be described in detail with reference to FIG. 6. The example shown in FIG. 6 is only to help those skilled in the art understand the embodiments of the present application, and is not intended to limit the application embodiments to the specific numerical values or specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes according to the example of FIG. 6 given, and such modifications and changes also fall within the scope of the embodiments of the present application.

Fig. 6 is another data transmission method provided by an embodiment of the present application. The method may include steps 610-650, and steps 610-650 will be described in detail below.

Step 610: The access network device uses the first QoS profile to perform service flow/data flow transmission with the terminal device.

alternative QoS profile A (GBR=2Mbps, PDB=15ms)

alternative QoS profile B (GBR=1Mbps, PDB=10ms)

alternative QoS profile C (GBR=1Mbps, PDB=20ms)

Among them, the first QoS profile used by the access network device to transmit the service flow/data flow between the terminal device and the terminal device is QoS profile B (GBR=1Mbps, PDB=10ms).

Step 620: The access network device changes the QoS profile used to transmit the service flow/data flow between the terminal device and the terminal device to the second QoS profile.

In step 610, the access network device may use the QoS profile B (GBR=1Mbps, PDB=10ms) to transmit the service flow/data flow between the terminal device and the terminal device due to the deterioration of the air interface condition and the current network load. After a period of time, if the access network equipment finds that its air interface conditions have improved, the current network load has decreased, etc., in step 620, the QoS profile used by the access network equipment in step 610 can be adjusted B (GBR = 1Mbps, PDB =10ms) to be replaced, so as to improve the quality of service corresponding to the QoS profile used by the access network equipment. There are many specific implementations of replacement, and the different implementations are described in detail below.

In a possible implementation manner, the access network device selects a QoS profile that it can satisfy from the QoS profile list obtained from the AMF as the second QoS profile. And determine the corresponding radio resource configuration according to the second QoS profile. Specifically, take the QoS profile A, QoS profile B, and QoS profile C obtained by the access network equipment from the AMF as an example to select a QoS profile that can be satisfied, for example, the target access network equipment selection QoS profile A (GBR=2Mbps, PDB=15ms).

In another possible implementation manner, the access network device generates a QoS profile by itself according to the QoS profile list obtained from the AMF. Specifically, when the access network device finds that the granularity of the QoS profile provided by the AMF is too coarse, it can generate a QoS profile by itself. The three QoS profiles listed in the above article are examples. When the access network device finds that the air interface conditions become better, the current network load becomes smaller, etc., it can generate a QoS profile that meets the current conditions. For example, the QoS profile A'(GBR=2Mbps, PDB=10ms) generated by the access network device itself, the QoS profile A'can be used as the second QoS profile after replacement, and the corresponding radio resource is determined according to the second QoS profile Configuration.

It should be noted that the QoS profile separately generated by the target access network device has a bottom line, that is, it cannot be lower than the QoS profile of the last item in the QoS profile list provided by the source access network device. If the QoS profile list provided by the source access network device is not arranged in a certain order, the QoS profile separately generated by the target access network device cannot be lower than the QoS profile with the lowest service quality in the list.

Step 630: The access network device sends its changed second QoS profile to the AMF.

Specifically, when the access network device finds that it can improve the quality of service during data transmission, it can send a QoS resume request message to the AMF, and the QoS resume request message can indicate the second QoS profile after the access network device is replaced.

There are many specific indication methods. As an example, the access network device can send the information of the second QoS profile to the AMF. For example, the access network device selects a QoS profile that it can satisfy from at least two QoS profiles. GBR=2Mbps, PDB=15ms), the access network device can send the index number of the QoS profile A in the QoS profile list to the AMF. As another example, the access network device may also send all the parameters of the second QoS profile to the AMF. For example, the access network device generates a QoS profile A'(GBR=2Mbps, PDB=10ms) according to at least two QoS profiles. ), the access network device can send the QoS profile A'parameters, which can include but are not limited to: GBR, PDB, PER, etc., to the AMF. As another example, the access network device may also only indicate to the AMF to increase the QoS, without indicating the specific QoS profile to the AMF. The AMF determines the specific QoS profile according to the need to increase the QoS indicated by the access network device.

Optionally, in some embodiments, after receiving the changed second QoS profile sent by the access network device, the AMF may send a response to the access network device, indicating that it agrees to the request. If the access network device needs to cooperate with the AMF to modify the QoS, the AMF needs to send a response to the access network device. For example, in step 470, the target access network device selects QoS profile B (GBR=1Mbps, PDB=10ms) to transmit the above service flow/data flow, and the AMF reduces the amount of user data sent to the target access network device. rate. When the access network device changes the QoS profile B (GBR=1Mbps, PDB=10ms) used to transmit the service flow/data flow with the terminal device to the QoS profile A (GBR=2Mbps, PDB=15ms), AMF is required Cancel or modify the tailoring of user data.

Specifically, taking the second QoS profile as QoS profile A (GBR=2Mbps, PDB=15ms) as an example, if the AMF accepts the QoS profile A after the replacement of the access network device, it can indicate to the access network device that it agrees to the second QoS profile. If the AMF does not accept the QoS profile A after the replacement of the access network device, it can indicate its negative opinion to the access network device, and the access network device will re-select a second QoS profile and notify the AMF.

Step 640: The access network device sends wireless resource parameters to the terminal device.

The access network device can generate the corresponding radio resource parameter configuration according to the updated second QoS profile. The wireless resource parameter configuration can be sent to the terminal device, so that the terminal device can perform data transmission with the access network device according to the wireless resource parameter configuration. Specifically, the access network device may send the radio resource parameter configuration corresponding to the second QoS profile to the terminal device through an RRC reconfiguration (RRC reconfiguration) message.

Step 650: The terminal device performs data transmission with the access network device according to the wireless resource parameter configuration.

Taking the reduction of the QoS service quality of a certain service flow/data flow of a terminal device in a non-handover scenario as an example, the data transmission method provided by the embodiment of the present application will be described in detail with reference to FIG. The example shown in FIG. 7 is only to help those skilled in the art understand the embodiments of the present application, and is not intended to limit the application embodiments to the specific numerical values or specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes according to the example of FIG. 7 given, and such modifications and changes also fall within the scope of the embodiments of the present application.

FIG. 7 is another data transmission method provided by an embodiment of the present application. The method may include steps 710-750, and steps 710-750 will be described in detail below.

Step 710: The QoS profile used by the access network device to transmit the service flow/data flow between the access network device and the terminal device is the first QoS profile.

alternative QoS profile A (GBR=2Mbps, PDB=15ms)

alternative QoS profile B (GBR=1Mbps, PDB=10ms)

alternative QoS profile C (GBR=1Mbps, PDB=20ms)

Step 720: The access network device replaces the QoS profile used to transmit the service flow/data flow with the terminal device to the second QoS profile.

In step 710, due to better air interface conditions and lower current network load, the access network device uses QoS profile B (GBR=1Mbps, PDB=10ms) to transmit service flow/data flow between the terminal device and the terminal device. After a period of time, if the access network equipment finds that its air interface conditions have deteriorated, the current network load has increased, etc., in step 720, the QoS profile B used by the access network equipment in step 710 can be replaced to reduce the access The level of the QoS profile used by the networked device. There are multiple specific implementation methods for replacement. In one possible implementation, the access network device selects a QoS profile that it can satisfy from the QoS profile list obtained from AMF as the second QoS profile. In another possible implementation manner, the access network device generates a QoS profile by itself according to the QoS profile list obtained from the AMF. This method corresponds to the method in step 620. For details, please refer to the description in step 620, which will not be repeated here.

For ease of description, the second QoS profile after replacement is QoS profile C (GBR=1Mbps, PDB=20ms) as an example for description.

Step 730: The access network device sends its changed second QoS profile to the AMF.

Corresponding to step 630, please refer to the description in step 630 for details, which will not be repeated here.

Corresponds to step 640. For details, please refer to the description in step 640, which will not be repeated here.

It corresponds to step 650. For details, please refer to the description in step 650, which will not be repeated here.

It is described above that the access network device can determine the QoS profile that can be satisfied based on the current network load and other factors, such as hardware processing capabilities, network architecture, etc., and determine the corresponding radio resource parameters based on the QoS profile. The wireless resource parameter can be sent to the terminal device, so that the terminal device can perform data transmission according to the wireless resource parameter sent by the access network device. For the terminal device, if the currently used radio resource parameter is the second radio resource parameter, the new radio resource parameter issued by the access network device is the first radio resource parameter, and the first radio resource parameter is the same as the terminal device. When the second radio resource parameters used are different, please refer to the description in the following embodiment for the specific behavior of the terminal device.

In an example, the radio resource parameter is a discard timer used by the PDCP layer of the packet data convergence layer protocol as an example. The discard timer used by the PDCP layer is related to the PDB parameters in the QoS profile. If the PDB becomes larger, the discard timer used by the corresponding PDCP layer becomes larger. On the contrary, if the PDB becomes smaller, the discard timer used by the corresponding PDCP layer becomes smaller. For ease of description, the second wireless resource parameter currently used by the terminal device is the second discard timer, and the first wireless resource parameter newly received by the terminal device is the first discard timer as an example for description.

It should be understood that the discard timer used by the PDCP layer may be a timeout timer, and the discard timer starts to count when the data packet reaches the PDCP layer of the sender. When the packet has not been completely sent to the receiver after the discard timer expires, the packet is actively discarded.

Specifically, in the current transmission process, each time the PDCP layer of the data sender receives a data packet from its upper layer, it can start the second discard timer according to the currently used second radio resource parameter. When the second discard timer expires, this packet will be deleted. If this data packet has been handed over to the RLC layer for transmission, PDCP will instruct the RLC layer to delete this data packet. Specifically, in a possible implementation, the RLC layer will delete the packet before it starts to transmit the data packet on the air interface, and at the same time, adjust the RLC sequence number (SN) of the subsequent data packet to make the RLC layer The SN of the layer data packet is continuous. In another possible implementation, the RLC layer has already started to transmit the data packet on the air interface, so no processing is done.

It should be noted that during the transmission of uplink data, the sender is the terminal device side. If during the downlink data transmission process, the sender is the access network device side. The following describes the transmission process of the upstream data as an example.

When the terminal device receives the wireless resource parameter of the information, for example, the first wireless resource parameter. The terminal device determines that the first discard timer included in the first radio resource parameter is different from the second discard timer currently in use. In addition, there may still be some data in the PDCP cache, and these data have started the timer according to the configuration value of the second discard timer being used. There are many specific processing methods for the terminal device, which are not specifically limited in the embodiment of the present application.

For example, for the data packets in the PDCP buffer, the terminal device continues to run according to the second discard timer currently in use. The newly received data packet can be processed according to the first discard timer.

For another example, the terminal device processes the data packets in the PDCP buffer and the newly received data packets according to the first discard timer. Specifically, in a possible implementation, if the value of the first discard timer is greater than the value of the second discard timer, all the data in the PDCP cache and the data that the discard timer is running are all increased by Δ, that is, according to the first discard The value of timer is processed. Among them, Δ represents the difference between the value of the first discard timer and the value of the second discard timer. Or, all data in the PDCP cache is increased by Δ, that is, processed according to the value of the first discard timer, and the running data of the discard timer remains unchanged, that is, processed according to the value of the second discard timer. Specifically, according to which of the foregoing methods, it may be stipulated by the protocol, or may also be indicated in the RRC reconfiguration message sent by the access network device to the terminal device. In another possible implementation, if the value of the first discard timer is less than the value of the second discard timer, all data in the PDCP cache and the data that the discard timer is running can be processed according to the value of the first discard timer. For example, delete the above data, or not delete it. Specifically, according to which of the foregoing methods, it may be stipulated by the protocol, or may also be indicated in the RRC reconfiguration message sent by the access network device to the terminal device.

It should be noted that the above is an example of data transmission between the terminal device and the access network device through the air interface, the above method in the embodiment of this application can also be applied to the data transmission between the terminal device and the terminal device through the air interface , Its implementation is the same, and for details, please refer to the above description, which will not be repeated here.

In another example, the radio resource parameter is the maximum number of RLC retransmissions used by the RLC layer as an example. Generally, the access network device configures the maximum number of RLC retransmissions of the data packet through the RRC signaling sent to the terminal device. If an uplink data packet reaches the maximum number of RLC retransmissions, the terminal device can consider that the radio link transmission has failed.

The maximum number of RLC retransmissions is related to the PER parameter in the QoS profile. If the PER becomes lower, the corresponding PDB becomes longer, and the access network equipment can achieve this by increasing the maximum number of RLC retransmissions. In other words, if the data is transmitted several times through the RLC layer, the PDB increases and the PER decreases. On the contrary, if the PER becomes higher, the corresponding PDB becomes shorter, and the access network device can reduce the maximum number of RLC retransmissions. In other words, the data is retransmitted several times less through the RLC layer, the PDB is reduced and the PER is increased.

For ease of description, the second radio resource parameter currently used by the terminal device is the second maximum number of RLC retransmissions, and the first radio resource parameter newly received by the terminal device is the first maximum number of RLC retransmissions as an example for description.

If in the current transmission process, the data packet in the RLC layer has been retransmitted for the second maximum number of retransmissions of the RLC. The terminal device can determine whether the newly received maximum number of retransmissions of the first RLC is greater than the maximum number of retransmissions of the second RLC, so as to determine whether to retransmit the data packet.

Specifically, in a possible implementation manner, if the maximum number of retransmissions of the first RLC of a data packet is greater than the maximum number of retransmissions of the second RLC, the terminal device may continue to retransmit the data packet until the number of retransmissions reaches the first. The maximum number of RLC retransmissions will be considered a wireless link transmission failure. In another possible implementation manner, if the maximum number of retransmissions of the first RLC of a data packet is less than the maximum number of retransmissions of the second RLC, the terminal device does not retransmit the data packet. It should be noted that in the case that the terminal device does not retransmit the data packet, the terminal device does not trigger the wireless link transmission failure for the data packet. That is to say, if a certain data packet reaches the maximum number of RLC retransmissions due to the change of the maximum number of RLC retransmissions, it will not be processed as the traditional "RLC reaches the maximum number of retransmissions". Optionally, whether the terminal device triggers a wireless link transmission failure for the data packet can be configured by the access network device.

It should be noted that during the transmission of uplink data, the sender is the terminal device side. If during the downlink data transmission process, the sender is the access network device side. The above description is based on an example of a terminal device's transmission process for uplink data. Similarly, for the transmission of downlink data on the access network device side, if it is found that the transmitted downlink data packet reaches the maximum number of RLC retransmissions due to the change in the maximum number of RLC retransmissions, it does not follow the traditional "RLC reaches the maximum number of retransmissions" "deal with.

It should also be noted that the above is an example of data transmission between the terminal device and the access network device through the air interface. The foregoing method in the embodiment of the present application may also be applicable to data transmission between the terminal device and the terminal device through the air interface, and the maximum number of RLC retransmissions may be changed, and processing may also be performed according to the foregoing method. For details, please refer to the above description, which will not be repeated here.

Optionally, the radio resource parameters may also include related timer parameters of the RLC layer. For example, when the parameter of the related timer in the second radio resource parameter being used by the terminal device is different from the parameter of the related timer in the newly received first radio resource parameter, the terminal device may not immediately change the currently running timing The behavior of the device is still processed according to the old parameters. If the timer expires, the next time it is restarted, it will be started according to the parameter of the relevant timer in the newly received first radio resource parameter.

Specifically, the above-mentioned related timer parameters may include, but are not limited to: poll retransmission (t_PollRetransmit), reassembly (T-Reassembly), and prohibition status (T-statusprohibit). Among them, t_Poll Retransmit is a timer parameter of the sender, which can avoid excessively frequently requesting data receivers to send RLC status reports to ensure normal reception/transmission of other data. The sender of data starts a timer after sending a certain poll. If the RLC status report sent by the receiver is not received after the timer expires, the sender can trigger another poll. T-Reassembly is a timer parameter of the receiver. The data receiver starts a timer for an unreceived data packet or a data packet that has not received all the segments. If the timer expires, the data is received The party no longer waits to receive data packets. T-statusprohibit belongs to the parameter of the receiver's prohibition timer. It controls the interval at which the data receiver sends the RLC status report. It does not send the RLC status report during the timer operation, which can avoid the receiver from frequently sending the RLC status report. The data receiver starts the timer after sending an RLC status report. During the running of the timer, no RLC status report is sent to the data sender.

Optionally, the radio resource parameters may also include other related threshold parameters of the RLC layer, and the related threshold parameters may include, but are not limited to: Poll PDU, Poll Byte. Among them, Poll PDU is a parameter maintained by the sender of the data, and represents the threshold for triggering polling. If the sent data packet reaches the threshold, poll is triggered. Poll Byte is a parameter maintained by the sender of the data. If the byte count of the sent data packet reaches the threshold, poll is triggered.

The following is an example of the upstream data transmission process. In this transmission process, the data sender is the terminal device side, and the data receiver is the core network side.

If the size of the threshold parameter in the second radio resource parameter currently operated by the terminal device is different from the size of the threshold parameter in the newly received first radio resource parameter, the terminal device has multiple processing methods. In a possible implementation manner, the terminal device first operates according to the old threshold parameter in the currently operating second radio resource parameter, and waits until the threshold is accumulated, and then poll is triggered. When the accumulation is restarted, it starts to use the new threshold parameter value in the first wireless resource parameter newly received. In another possible implementation, the new threshold parameter value in the newly received first radio resource parameter is currently used. At this time, if the current cumulative number of PDUs is already greater than the newly configured pollPDU, or the current cumulative The number of BYTE is greater than the newly configured pollByte, and poll can be triggered.

Optionally, the radio resource parameters may also include RLC mode changes. The RLC mode may include an acknowledged mode (AM) and an unacknowledged mode (UM). Among them, the UM mode means that the sender of the data sends the data but does not guarantee delivery to the corresponding receiver, and the retransmission protocol is not used. The receiver marks the received erroneous data as an error and submits it, or directly discards it and reports it to the higher level. AM mode means that the sender of the data sends the data and guarantees the delivery to the corresponding receiver, and uses the retransmission protocol. The receiver notifies the sender of the received error data to perform RLC retransmission.

As an example, if the RLC mode in the second radio resource parameter currently running by the terminal device is AM, the RLC mode in the newly received first radio resource parameter is UM. For the data sender, starting from the next data packet, only the RLC SN is allocated to the packet that needs to be segmented. No longer retransmit the previously transmitted data packet, no longer send poll, clear t_PollRetransmit, PollPDU and PollByte, and no longer use it. For the data receiver, the RLC status report is no longer sent to the data sender, the T-Status prohibit is cleared, and it is no longer used.

As another example, if the RLC mode in the second radio resource parameter currently running by the terminal device is UM, the RLC mode in the newly received first radio resource parameter is AM. For the data sender, starting from the next data packet, regardless of whether it is fragmented or not, the RLC SN is allocated, and the RLC SN continues to be allocated on the basis of the currently allocated value. Starting from the next data packet, record whether the RLC status report from the receiver is received, and if not, retransmit the data packet. Starting from the next data packet, pollPDU and pollByte start counting. If the count reaches the threshold, poll is sent to urge the receiver to send an RLC status report. For the data receiver, it starts to record whether each packet is received for use when generating the RLC status report.

Optionally, for the sender of data, the sender needs to notify the receiver of the data that it needs to provide RLC retransmission data packets. For example, during the current transmission process, the sender’s 48 and 49 data packets are being retransmitted at the bottom layer, and the sender starts with the 50 data packet and records the status report sent by the receiver, that is, the sender can support The RLC retransmission of the 50th data packet does not support the RLC retransmission of the 48th and 49th data packets. The sender informs the receiver that it can provide RLC retransmission service from the 50th data packet, and when the receiver generates the RLC status report, it starts counting from the 50th data packet.

It should be noted that the data transmission between the terminal device and the access network device through the air interface is taken as an example. During the transmission of uplink data, the sender of the data is the terminal device side, and the receiver of the data is the access network device side. On the contrary, during the transmission of downlink data, the sender of the data is the side of the access network device, and the receiver of the data is the side of the terminal device.

It should also be noted that the above is an example of data transmission between the terminal device and the access network device through the air interface. The foregoing method in the embodiment of the present application may also be applicable to data transmission between the terminal device and the terminal device through the air interface, and the change of the threshold parameter of the RLC layer related timer may also be processed according to the foregoing method. For details, please refer to the above description, which will not be repeated here.

In another example, take the wireless resource parameter as the MAC layer parameter as an example. In some embodiments, the MAC layer parameter is priority, and the priority parameter is used to indicate the priority of the logical channel.

After the terminal device establishes a connection with the access network device, when the terminal device needs to send uplink data to the access network device, it must have uplink resources. If there is no uplink resource, the terminal device needs to first apply for the uplink resource from the access network device. In the process of a terminal device applying for an uplink resource from an access network device, it needs to report a buffer status report (BSR) to the access network device so that the access network device can schedule appropriate uplink resources for the terminal device. Specifically, if the priority of the data newly arriving at the access layer of the terminal device is higher than the priority of all data already in the buffer of the terminal device, the terminal device may trigger the BSR.

The terminal device currently has data buffered in three logical channels. Among them, the logical channel A has 100 Bytes buffered, and its priority is 4. There are 80Bytes buffered in logical channel B, and its priority is 3. There are 50 Bytes buffered in logical channel C, and its priority is 2. The lower the number, the higher the priority. If the priority of the logical channel A in the first wireless resource parameter newly received by the terminal device is 1, it is equivalent to that the priority of the logical channel A is increased in the first wireless resource parameter newly received by the terminal device. This situation is equivalent to the arrival of 100 Bytes of new data in logical channel A, and it can also be understood that the terminal device receives 100 Bytes of new data with a priority of 1 from the upper layer. At this time, whether the terminal device is BSR or not, there are several possible methods as follows.

In a possible implementation, it is equivalent to the arrival of 100 Bytes of new data in logical channel A, and the terminal device triggers the BSR. Optionally, the type of the triggered BSR is a regular BSR. In another possible implementation manner, the access network device knows the priority change of the above logical channel A data, that is, the access network device knows that the terminal device has 100 bytes of data with a priority of 1 after the QoS configuration is updated, and the terminal device does not Trigger the BSR. In another possible implementation manner, whether the terminal device triggers the BSR is configured by the access network device. If the access network device is configured to trigger the BSR, the terminal device triggers the BSR. If the access network device is not configured to trigger the BSR, the terminal device does not trigger the BSR. In another possible implementation manner, if 100 Bytes of data in logical channel A has been reported to the access network device through the previous BSR, the terminal device does not need to trigger the BSR. In another possible implementation manner, if 100 Bytes of data in logical channel A is not reported to the access network device through the previous BSR, the terminal device needs to trigger the BSR.

Optionally, in some embodiments, the MAC layer parameter is a priority bit rate (prioritised bit rate, PBR). It should be understood that, in order to avoid high-priority logical channels always occupying the wireless resources allocated to the terminal equipment by the access network, which will cause the low-priority logical channels to fail to send data, LTE introduces the concept of PBR, which means that Before channel allocation resources, configure the data rate of each logical channel to provide a minimum data rate guarantee for each logical channel, and prevent low-priority logical channels from being unable to send data.

The terminal device maintains a variable Bj for each logical channel j, which indicates the number of tokens currently available in the token bucket, and each token corresponds to 1 Byte of data. The PBR parameter represents the number of tokens added each time Bj is increased. If the second radio resource parameter currently running by the terminal device is the first PBR, the newly received first radio resource parameter is the second PBR. For the PBR parameter changed from the first PBR to the second PBR, the terminal device will increase Bj according to the second PBR from the next time.

Optionally, in some embodiments, the MAC layer parameter is bucket size duration (BSD). BSD determines the "depth" of the token bucket, and together with PBR determines the maximum capacity of the token bucket (PBR*BSD). It should be understood that the maximum capacity of the token bucket limits the total amount of data that can be pending (pending, that is, cached in the buffer) for each logical channel, and the value of Bj cannot exceed the maximum capacity of the token bucket. If the number of tokens reaches the capacity of the token bucket, the capacity of the token bucket is not increased. If the second radio resource parameter currently running by the terminal device is the first BSD, the newly received first radio resource parameter is the second BSD. For the BSD parameter changed from the first BSD to the second BSD, the terminal device can determine the maximum capacity of the token bucket according to the second BSD, thereby determining whether to increase Bj.

Optionally, in some embodiments, the MAC layer parameter is a logical channel group (LCG). This LCG is used to group the data to be transmitted when reporting the BSR. If the second radio resource parameter currently running by the terminal device is the first LCG, and the newly received first radio resource parameter is the second LCG, the terminal device can perform data to be transmitted according to the second LCG from the next BSR report. Grouping.

Optionally, in some embodiments, the MAC layer parameter is a bit rate query prohibit timer. This parameter is used to configure the minimum time for requesting the bit rate. If the bit rate query prohibit timer in the second wireless resource parameter currently running by the terminal device is different from the bit rate query prohibit timer in the newly received first wireless resource parameter, the terminal device can prohibit the bit rate query from the next bit rate query. query) Start to use the bit rate query prohibit timer in the newly received first radio resource parameter.

Optionally, in some embodiments, the MAC layer parameter is scheduling request identification (scheduling request identification, SR ID)/logical channel SR-mask/logical channel SR-delay timer applied. The above-mentioned parameters are used to configure the correspondence between SR resources and logical channels. If the above-mentioned parameter in the second radio resource parameter currently operating by the terminal device is different from the above-mentioned parameter in the newly received first radio resource parameter, the terminal device can start from the next SR triggering, according to the newly received first radio resource parameter. The above-mentioned parameters in the resource parameters determine the resource location sent by the SR.

Optionally, in some embodiments, the MAC layer parameter is allowed serving cells/allowed SCS-list/max PUSCH-duration/configuraed grant type1 allowed. The above-mentioned parameters are used to limit the radio resources used for radio resource transmission of the data to be transmitted. If the above-mentioned parameter in the second radio resource parameter currently running by the terminal device is different from the above-mentioned parameter in the newly received first radio resource parameter, the terminal device can start from the next link control protocol (LCP) process Initially, the above-mentioned parameters in the newly received first radio resource parameters are used to determine which logical channel (logical channel, LCH) data can be transmitted.

It should be noted that the above method can be applied to data transmission between a terminal device and an access network device through an air interface, and can also be applied to data transmission between a terminal device and a terminal device through an air interface. The change of the relevant parameters of the MAC layer can be processed according to the above-mentioned method.

It can be understood that the terminal device or the access network device may perform some or all of the steps in the above-mentioned embodiments, and these steps or operations are only examples, and the embodiments of the present application may also perform other operations or various operation variations. In addition, each step may be executed in a different order presented in the foregoing embodiment, and it may not be necessary to perform all operations in the foregoing embodiment.

The data transmission method provided by the embodiment of the present application is described in detail above with reference to Figs. 1 to 7, and the device embodiment of the present application will be described in detail below with reference to Figs. 8 to Figs. It should be understood that the description of the method embodiment and the description of the device embodiment correspond to each other, and therefore, the parts that are not described in detail may refer to the previous method embodiment.

FIG. 8 is a schematic block diagram of a data transmission device 800 provided by an embodiment of the present application. It can be understood that the data transmission apparatus 800 may be a first core network device, or a component that can be used for the first core network device, and the component may include a chip for the first core network device.

The data transmission device 800 may include:

The determining module 810 is configured to determine the first QoS parameter according to at least two quality of service QoS parameters;

The sending module 820 is configured to send a first wireless resource configuration to a terminal device, where the first wireless resource configuration is determined according to the first QoS parameter, and the first wireless resource configuration is used for the first access network Between the device and the terminal device, or used for data transmission between the terminal device and the terminal device.

Optionally, the first QoS parameter and the at least two QoS parameters belong to one protocol data unit PDU session.

Optionally, the device 800 further includes:

The receiving module 830 is configured to receive a service bearer request message sent by a second access network device, where the service bearer request message carries the at least two QoS parameters, where the second access network device is the terminal The source network device of the device, and the first access network device is the target network device of the terminal device.

Optionally, the determining module 810 is specifically configured to select one QoS parameter from the at least two QoS parameters as the first QoS parameter.

Optionally, the sending module 820 is further configured to notify the core network device of the first QoS parameter.

It can be understood that the data transmission apparatus 800 may be a first access network device, or a component (for example, a chip or a circuit) that can be used for the first access network device.

FIG. 9 is a schematic block diagram of a data transmission device 900 provided by an embodiment of the present application. It is understandable that the data transmission apparatus 900 may be a first core network device, or a component that can be used for the first core network device, and the component may include a chip for the first core network device.

The data transmission device 900 may include:

The determining module 910 is configured to determine the second QoS parameter according to the currently used first quality of service QoS parameter;

The sending module 920 is configured to send a second wireless resource configuration to a terminal device, the second wireless resource configuration is determined according to the second QoS parameter, and the second wireless resource configuration is used for the first access network Between the device and the terminal device, or used for data transmission between the terminal device and the terminal device.

Optionally, the second QoS parameter and the first QoS parameter belong to one PDU session.

Optionally, the position of the second QoS parameter in the QoS parameter list is higher than the position of the first QoS parameter in the QoS parameter list.

FIG. 10 is a schematic block diagram of a data transmission device 1000 according to an embodiment of the present application. It can be understood that the data transmission apparatus 1000 may be a terminal device, or a component that can be used in a terminal device, and the component may include a chip used in the terminal device.

The data transmission device 1000 may include:

The receiving module 1010 is configured to receive a first wireless resource configuration, where the first wireless resource configuration is used between the terminal device and the access network device, or used for data transmission between the terminal device and the terminal device , The first wireless resource configuration is different from the second wireless resource configuration currently used by the terminal device;

The first processing module 1020 is configured to process data packets in the buffer according to the second wireless resource configuration, and process newly received data packets according to the first wireless resource configuration; or

The second processing module 1030 is configured to process data packets in the buffer and newly received data packets according to the first wireless resource configuration.

Optionally, the first radio resource configuration and the second radio resource configuration include the priority of the first logical channel, and the first processing module 1020 or the second processing module 1030 is specifically configured to: The priority of the first logical channel in the first wireless resource configuration is higher than the priority of the first logical channel in the second wireless resource configuration, and it is determined that the data to be sent in the buffer corresponding to the first logical channel is equal As new data arrives.

Optionally, the first wireless resource configuration includes a first discard timer parameter of the PDCP layer of the data convergence protocol, and the second wireless resource configuration includes a second discard timer parameter,

The first processing module 1020 is specifically configured to: process the data packet in the buffer according to the second discard timer parameter; and process the newly received data packet according to the first discard timer parameter.

The second processing module 1030 is specifically configured to process the data packet in the buffer and the newly received data packet according to the first discard timer parameter.

Optionally, the first radio resource configuration includes the number of first radio link control RLC retransmissions, and the second radio resource configuration includes the second number of RLC retransmissions,

The second processing module 1030 is specifically configured to determine whether to retransmit the data packet according to whether the second RLC retransmission times of the data packet is greater than the first RLC retransmission times.

FIG. 11 is a schematic structural diagram of a communication processing device 50 provided by an embodiment of the present application. The communication processing device 50 may be applicable to the system shown in one or more of FIG. 1 or FIG. 2 to perform the functions of the terminal device in the foregoing method embodiment. As an example, the communication processing apparatus 50 may be, for example, a terminal device, or a component that can be used in a terminal device, and the component may include a chip used in the terminal device.

For ease of description, FIG. 11 only shows the main components of the communication processing device 50. As shown in FIG. 11, the communication processing device 50 includes a processor, a memory, a control circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the entire communication processing device 50, execute software programs, and process the data of the software programs, for example, to support the communication processing device 50 to execute the method described in the above method embodiments. Actions. The memory is mainly used to store software programs and data. The control circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.

After the communication processing device 50 is turned on, the processor can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the communication processing device 50, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and performs processing on the data. deal with.

Those skilled in the art can understand that, for ease of description, FIG. 11 only shows one memory and one processor. In the actual communication processing device 50, there may be multiple processors and multiple memories. The memory may also be referred to as a storage medium or storage device. The memory may be a storage element on the same chip as the processor, that is, an on-chip storage element, or an independent storage element, which is not limited in the embodiment of the present application.

As an optional implementation, the communication processing device 50 may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to process the entire terminal equipment. Perform control, execute software programs, and process data in software programs. The processor in FIG. 11 can integrate the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit can also be independent processors and are interconnected by technologies such as a bus. Those skilled in the art can understand that the communication processing device 50 may include multiple baseband processors to adapt to different network standards, the communication processing device 50 may include multiple central processors to enhance its processing capabilities, and the various components of the communication processing device 50 may Connected through various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data can be built in the processor, or can be stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In the embodiment of the present application, the antenna and the control circuit with the transceiving function can be regarded as the transceiving unit 501 of the communication processing device 50, for example, to support the communication processing device 50 to perform the receiving function and the transmitting function. The processor 502 having a processing function is regarded as the processing unit 502 of the communication processing device 50. As shown in FIG. 16, the communication processing device 50 includes a transceiving unit 501 and a processing unit 502. The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on. Optionally, the device for implementing the receiving function in the transceiver unit 501 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 501 can be regarded as the sending unit, that is, the transceiver unit 501 includes a receiving unit and a sending unit. The receiving unit may also be called a receiver, an input port, a receiving circuit, etc., and the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.

The processor 502 may be used to execute instructions stored in the memory to control the transceiver unit 501 to receive signals and/or send signals, so as to complete the functions of the terminal device in the foregoing method embodiment. The processor 502 also includes an interface for realizing signal input/output functions. As an implementation manner, the function of the transceiving unit 501 may be implemented by a transceiving circuit or a dedicated chip for transceiving.

FIG. 12 is a schematic structural diagram of another communication processing device 60 provided by an embodiment of the present application. As shown in FIG. 12, the communication processing device 60 includes a processor 601 and a transceiver 602. Optionally, the communication processing apparatus 600 further includes a memory 603. Among them, the processor 601, the transceiver 602, and the memory 603 can communicate with each other through internal connection paths to transfer control and/or data signals. The memory 603 is used for storing computer programs, and the processor 601 is used for downloading from the memory 603. Call and run the computer program to control the transceiver 602 to send and receive signals. The terminal device 600 may further include an antenna 604 for transmitting the signaling output by the transceiver 602 through a wireless signal.

As an example, the communication processing apparatus 60 may be, for example, a terminal device, or a component that can be used in a terminal device, and the component may include a chip used in the terminal device.

The foregoing processor 601 and the memory 603 may be combined into one processing device, and the processor 601 is configured to execute the program code stored in the memory 603 to implement the foregoing functions. During specific implementation, the memory 603 may also be integrated in the processor 601 or independent of the processor 601.

Specifically, the communication processing device 60 may correspond to each embodiment of the method according to the embodiment of the present application. In addition, the units in the communication processing device 60 and the other operations and/or functions described above are used to implement the corresponding procedures in the various embodiments of the method.

The above-mentioned processor 601 may be used to perform the actions implemented by the terminal device described in the foregoing method embodiments, and the transceiver 602 may be used to perform the actions of sending or receiving by the terminal device described in the foregoing method embodiments. For details, please refer to the description in the previous method embodiment, which will not be repeated here.

Optionally, the above-mentioned communication processing device 60 may further include a power supply 605 for providing power to various devices or circuits in the communication processing device 60.

In addition, in order to make the functions of the communication processing device 60 more complete, the communication processing device 60 may also include one or more of an input unit 606, a display unit 607, an audio circuit 608, a camera 609, and a sensor 66. The audio circuit may also include a speaker 6082, a microphone 6084, and so on.

FIG. 13 is a schematic structural diagram of a communication processing apparatus 70 provided by an embodiment of the present application, for example, it may be a schematic structural diagram of a base station. As an example, the communication processing apparatus 70 may be, for example, an access network device, or a component that can be used for the access network device, and the component may include a chip for the access network device. As shown in Fig. 13, the base station can be applied to the system shown in one or more of Fig. 1 or Fig. 2. Perform the function performed by the first access network device or the component used for the first access network device, or the source access network device or the component used for the source access network device in the above method embodiment, or the target access network device Or used for the functions performed by the components of the target access network equipment. The communication processing device 70 may include one or more DU 701 and one or more CU 702. CU702 can communicate with NGcore (Next Generation Core Network, NC)). The DU 701 may include at least one radio frequency unit 7012, at least one processor 7013, and at least one memory 7014. The DU701 may further include at least one antenna 7011. The DU 701 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing. The CU702 may include at least one processor 7022 and at least one memory 7021. CU702 and DU701 can communicate through interfaces, where the control plan interface can be Fs-C, such as F1-C, and the user plan interface can be Fs-U, such as F1-U.

The CU 702 part is mainly used for baseband processing, control of the base station, and so on. The DU 701 and the CU 702 may be physically set together, or may be physically separated, that is, a distributed base station. The CU 702 is the control center of the base station, which may also be referred to as a processing unit, and is mainly used to complete the baseband processing function. For example, the CU 702 may be used to control the base station to execute the first access network device or the component used for the first access network device in the foregoing method embodiments, or the source access network device or the source access network device. The function performed by the component, or the operation flow performed by the target access network device or the component used for the target access network device.

Specifically, the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP, For example, functions such as the radio link control (RLC) layer and the media access control (media access control, MAC) layer are set in the DU. For another example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions, DU implements radio link control (radio link control, RLC), medium access Control (medium access control, MAC) and physical (physical, PHY) layer functions.

In addition, optionally (not shown in the figure), the communication processing device 70 may include one or more antennas, one or more radio frequency units, one or more DUs, and one or more CUs. The DU may include at least one processor and at least one memory, at least one antenna and at least one radio frequency unit may be integrated in one antenna device, and the CU may include at least one processor and at least one memory.

In an example, the CU702 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network (such as a 5G network) with a single access indication, or can respectively support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other networks). The memory 7021 and the processor 7022 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board. The DU701 can be composed of one or more single boards. Multiple single boards can jointly support a wireless access network with a single access indication (such as a 5G network), and can also support wireless access networks with different access standards (such as LTE network, 5G network or other network). The memory 7014 and the processor 7013 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.

FIG. 14 is a schematic structural diagram of a communication processing device 80 provided by an embodiment of the present application. The communication processing device 80 may be used to implement the method described in the foregoing method embodiment, and reference may be made to the description in the foregoing method embodiment. The communication processing device 80 may be a chip, an access network device (such as a base station), or a terminal device.

The communication processing device 80 includes one or more processors 801. The processor 801 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control devices (such as base stations, terminals, or chips, etc.), execute software programs, and process software program data. The device may include a transceiving unit to implement signal input (reception) and output (transmission). For example, the device may be a chip, and the transceiver unit may be an input and/or output circuit of the chip, or a communication interface. The chip can be used for terminal equipment or access network equipment (such as a base station). For another example, the device may be a terminal device or an access network device (such as a base station), and the transceiver unit may be a transceiver, a radio frequency chip, or the like.

The communication processing device 80 includes one or more of the processors 801, and the one or more processors 801 can implement the terminal equipment shown in one or more of FIGS. 3-7, or the first access The method implemented by the network device.

Optionally, the processor 801 may implement other functions in addition to implementing the methods in one or more of the embodiments shown in FIGS. 3-7.

Optionally, in a design, the processor 801 may also include an instruction 803, which may be executed on the processor, so that the communication processing device 80 executes the method described in the foregoing method embodiment.

In another possible design, the communication processing device 80 may also include a circuit, which may implement the first access network device or the component used for the first access network device in the foregoing method embodiment, or the source access The function performed by the network device or the component used for the source access network device, or the operation flow performed by the target access network device or the component used for the target access network device.

In another possible design, the communication processing device 80 may include one or more memories 802, on which instructions 804 are stored, and the instructions may be executed on the processor, so that the data transmission The device 80 executes the method described in the foregoing method embodiment. Optionally, data may also be stored in the memory. The optional processor may also store instructions and/or data. For example, the one or more memories 802 may store the mobile effective area described in the foregoing embodiment, or related parameters or tables involved in the foregoing embodiment. The processor and the memory can be provided separately or integrated together.

In another possible design, the communication processing device 80 may further include a transceiver unit 805 and an antenna 806, or include a communication interface. The transceiving unit 805 may be called a transceiver, a transceiving circuit, or a transceiver, etc., and is used to implement the transceiving function of the device through the antenna 806. The communication interface (not shown in the figure) may be used for communication between an access network device and an access network device, or a terminal device and a terminal device, or an access network device and a terminal device. Optionally, the communication interface may be a wired communication interface, such as an optical fiber communication interface.

The processor 801 may be referred to as a processing unit, which controls a device (such as a terminal or a base station).

In addition, since the sending or receiving performed by the transceiver unit 805 described in the embodiment of the present application is under the control of the processing unit (processor 801), the sending or receiving action may also be described as processing in the embodiment of the present application. The execution by the unit (processor 801) does not affect the understanding of the solution by those skilled in the art.

It should be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and application-specific integrated circuits. (application specific integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.

It should also be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of random access memory (RAM) are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (DRAM), and synchronous dynamic random access memory (DRAM). Access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory Take memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

The embodiment of the present application also provides a communication system, which includes one or more of the following:

The above-mentioned first access network device or a component used for the first access network device, or

Terminal equipment or components that can be used in terminal equipment.

It should be noted that the above-mentioned components may be, for example, chips, or may also be circuits.

The embodiment of the present application also provides a computer-readable medium for storing computer program code, the computer program including components for executing the first access network device or for the first access network device in the above method, or Instructions for the method performed by the terminal device or a component used in the terminal device. The readable medium may be a read-only memory (ROM) or a random access memory (RAM), which is not limited in the embodiment of the present application.

This application also provides a computer program product. The computer program product includes instructions. When the instructions are executed, the first access network device or the component for the first access network device, or the terminal device or The components for the terminal device respectively execute the operations of the first access network device and the terminal device corresponding to the foregoing method.

An embodiment of the present application also provides a system chip, which includes a processing unit and a communication unit. The processing unit may be, for example, a processor, and the communication unit may be, for example, an input/output interface, a pin, or a circuit. The processing unit can execute computer instructions, so that the data transmission device applied to the chip executes the method provided in the foregoing embodiment of the present application.

Optionally, any data transmission device provided in the foregoing embodiments of the present application may include the system chip.

Optionally, the computer instructions are stored in a storage unit.

Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., the storage unit can also be a storage unit located outside the chip in the data transmission device, such as a ROM or a storage unit that can store static information and Instructions for other types of static storage devices, RAM, etc. Wherein, the processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the program execution of the above data transmission method. The processing unit and the storage unit can be decoupled, respectively set on different physical devices, and connected in a wired or wireless manner to realize the respective functions of the processing unit and the storage unit, so as to support the system chip to implement the above-mentioned embodiments Various functions in. Alternatively, the processing unit and the memory may also be coupled to the same device. It should be understood that the processor in the embodiments of the present application may be a CPU, and the processor may also be other general-purpose processors, DSP, ASIC, FPGA or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. . The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

The foregoing embodiments may be implemented in whole or in part by software, hardware (such as circuits), firmware, or any other combination. When implemented by software, the above-mentioned embodiments may be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer 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 instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as infrared, wireless, microwave, etc.). 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 or a data center that includes one or more sets of available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium may be a solid state drive.

Various messages/information/equipment/network elements/systems/devices/actions/operations/processes/concepts and other objects that may appear in this application are given names. It is understandable that these specific names are not It constitutes a limitation on related objects. The assigned name can be changed according to factors such as the scene, context or usage habits. The understanding of the technical meaning of the technical terms in this application should mainly be based on the function embodied/performed in the technical solution And technical effects to determine.

It should be understood that the term "and/or" in this text is only an association relationship describing the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist. , There are three cases of B alone, where A and B can be singular or plural. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship, but it may also indicate an "and/or" relationship, which can be understood with reference to the context.

It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a). For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

In the several embodiments provided in this application, it should be understood that the disclosed system, method, and device may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or an access network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method of data transmission, characterized in that the method includes:

The first access network device determines the first QoS parameter according to the at least two quality of service QoS parameters;

The first access network device sends a first wireless resource configuration to a terminal device, the first wireless resource configuration is determined according to the first QoS parameter, and the first wireless resource configuration is used for the first access Between the networked device and the terminal device, or used for data transmission between the terminal device and the terminal device.
The method according to claim 1, wherein the first QoS parameter and the at least two QoS parameters belong to one protocol data unit PDU session.
The method according to claim 1 or 2, wherein the method further comprises:

The first access network device receives a service bearer request message sent by a second access network device, and the service bearer request message carries the at least two QoS parameters, where the second access network device is The source network device of the terminal device, and the first access network device is the target network device of the terminal device.
The method according to any one of claims 1 to 3, wherein the first access network device determining the first QoS parameter according to at least two quality of service QoS parameters comprises:

The first access network device selects one QoS parameter from the at least two QoS parameters as the first QoS parameter.
The method according to any one of claims 1 to 4, wherein the method further comprises:

The first access network device notifies the core network device of the first QoS parameter.
A method of data transmission, characterized in that the method includes:

The first access network device determines the second QoS parameter according to the currently used first quality of service QoS parameter;

The first access network device sends a second wireless resource configuration to the terminal device, the second wireless resource configuration is determined according to the second QoS parameter, and the second wireless resource configuration is used for the first access Between the networked device and the terminal device, or used for data transmission between the terminal device and the terminal device.
The method according to claim 6, wherein the second QoS parameter and the first QoS parameter belong to one PDU session.
The method according to claim 6 or 7, wherein the position of the second QoS parameter in the QoS parameter list is higher than the position of the first QoS parameter in the QoS parameter list.
A method of data transmission, characterized in that the method includes:

The terminal device receives the first wireless resource configuration, and the first wireless resource configuration is used between the terminal device and the access network device, or used for data transmission between the terminal device and the terminal device, and the first wireless resource configuration is used for data transmission between the terminal device and the terminal device. A wireless resource configuration is different from the second wireless resource configuration currently used by the terminal device;

The terminal device processes the data packet in the buffer according to the second wireless resource configuration, and processes the newly received data packet according to the first wireless resource configuration; or

The terminal device processes the data packets in the buffer and the newly received data packets according to the first wireless resource configuration.
The method according to claim 9, wherein the first radio resource configuration and the second radio resource configuration include the priority of the first logical channel,

The terminal device processing the data packets in the buffer and the newly received data packets according to the first wireless resource configuration includes:

The terminal device determines the buffer corresponding to the first logical channel according to the priority of the first logical channel in the first wireless resource configuration being higher than the priority of the first logical channel in the second wireless resource configuration The data to be sent is equivalent to the arrival of new data.
The method according to claim 9 or 10, wherein the first wireless resource configuration includes a first discard timer parameter of the PDCP layer of the data convergence protocol, and the second wireless resource configuration includes a second discard timer parameter. timer parameter,

The terminal device processing the data packet in the buffer according to the second wireless resource configuration, and processing the newly received data packet according to the first wireless resource configuration, includes:

The terminal device processes the data packet in the buffer according to the second discard timer parameter;

The terminal device processes the newly received data packet according to the first discard timer parameter.

The terminal device processing the data packets in the buffer and the newly received data packets according to the first wireless resource configuration includes:

The terminal device processes the data packet in the buffer and the newly received data packet according to the first discard timer parameter.
The method according to any one of claims 9 to 11, wherein the first radio resource configuration includes a first radio link control RLC retransmission number, and the second radio resource configuration includes a second RLC retransmission times,

The terminal device processing the data packets in the buffer and the newly received data packets according to the first wireless resource configuration includes:

The terminal device determines whether to retransmit the data packet according to whether the second RLC retransmission times of the data packet is greater than the first RLC retransmission times.
A data transmission device, characterized in that the device includes:

A determining module, configured to determine the first QoS parameter according to at least two quality of service QoS parameters;

A sending module, configured to send a first wireless resource configuration to a terminal device, where the first wireless resource configuration is determined according to the first QoS parameter, and the first wireless resource configuration is for the first access network device And the terminal device, or used for data transmission between the terminal device and the terminal device.
The apparatus according to claim 13, wherein the first QoS parameter and the at least two QoS parameters belong to one protocol data unit PDU session.
The device according to claim 13 or 14, wherein the device further comprises:

The receiving module is configured to receive a service bearer request message sent by a second access network device, where the service bearer request message carries the at least two QoS parameters, where the second access network device is the terminal device The source network device of the terminal device, the first access network device is the target network device of the terminal device.
The device according to any one of claims 13 to 15, wherein the determining module is specifically configured to:

From the at least two QoS parameters, one QoS parameter is selected as the first QoS parameter.
The device according to any one of claims 13 to 16, wherein the sending module is further configured to:

Notifying the core network device of the first QoS parameter.
A data transmission device, characterized in that the device includes:

The determining module is configured to determine the second QoS parameter according to the currently used first quality of service QoS parameter;

A sending module, configured to send a second wireless resource configuration to a terminal device, where the second wireless resource configuration is determined according to the second QoS parameter, and the second wireless resource configuration is used for the first access network device And the terminal device, or used for data transmission between the terminal device and the terminal device.
The apparatus according to claim 18, wherein the second QoS parameter and the first QoS parameter belong to one PDU session.
The apparatus according to claim 18 or 19, wherein the position of the second QoS parameter in the QoS parameter list is higher than the position of the first QoS parameter in the QoS parameter list.
A data transmission device, characterized in that the device includes:

A receiving module, configured to receive a first wireless resource configuration, where the first wireless resource configuration is used between the terminal device and the access network device, or used for data transmission between the terminal device and the terminal device, The first wireless resource configuration is different from the second wireless resource configuration currently used by the terminal device;

The first processing module is configured to process the data packet in the buffer according to the second wireless resource configuration, and process the newly received data packet according to the first wireless resource configuration; or

The second processing module is configured to process the data packet in the buffer and the newly received data packet according to the first wireless resource configuration.
The apparatus according to claim 21, wherein the first radio resource configuration and the second radio resource configuration include the priority of the first logical channel,

The first processing module or the second processing module is specifically configured to:

According to the priority of the first logical channel in the first wireless resource configuration being higher than the priority of the first logical channel in the second wireless resource configuration, determine the to-be-sent in the buffer corresponding to the first logical channel The data is equivalent to the arrival of new data.
The apparatus according to claim 21 or 22, wherein the first wireless resource configuration includes a first discard timer parameter of the PDCP layer of the data convergence protocol, and the second wireless resource configuration includes a second discard timer parameter. timer parameter,

The first processing module is specifically configured to:

Process the data packet in the cache according to the second discard timer parameter;

Process the newly received data packet according to the first discard timer parameter.

The second processing module is specifically configured to:

The data packet in the buffer and the newly received data packet are processed according to the first discard timer parameter.
The apparatus according to any one of claims 21 to 23, wherein the first radio resource configuration includes a first radio link control RLC retransmission number, and the second radio resource configuration includes a second RLC retransmission times,

The second processing module is specifically configured to:

According to whether the second RLC retransmission times of the data packet is greater than the first RLC retransmission times, it is determined whether to retransmit the data packet.
A communication processing device, characterized by comprising: a processor coupled with a memory;

The processor is configured to execute a computer program stored in the memory, so that the first access network device executes the method according to any one of claims 1 to 5.
A communication processing device, characterized by comprising: a processor coupled with a memory;

The processor is configured to execute a computer program stored in the memory, so that the terminal device executes the method according to any one of claims 6 to 8.
A communication processing device, characterized by comprising: a processor coupled with a memory;

The processor is configured to execute a computer program stored in the memory, so that the terminal device executes the method according to any one of claims 9 to 12.
A computer storage medium, characterized by comprising a computer program, which when the computer program runs on a computer, causes the computer to execute the method according to any one of claims 1 to 5.
A computer storage medium, characterized by comprising a computer program, when the computer program runs on a computer, the computer is caused to execute the method according to any one of claims 6 to 8.
A computer storage medium, characterized by comprising a computer program, when the computer program runs on a computer, the computer is caused to execute the method according to any one of claims 9 to 12.
A computer program product, characterized by comprising a computer program, when the computer program runs on a computer, causes the computer to execute the method according to any one of claims 1 to 5.
A computer program product, characterized by comprising a computer program, when the computer program runs on a computer, the computer is caused to execute the method according to any one of claims 6 to 8.
A computer program product, characterized by comprising a computer program, when the computer program runs on a computer, causes the computer to execute the method according to any one of claims 9 to 12.