CN116406020B

CN116406020B - Data transmission method and device

Info

Publication number: CN116406020B
Application number: CN202310658112.5A
Authority: CN
Inventors: 赵文龙
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-10-20
Anticipated expiration: 2043-06-06
Also published as: CN116406020A

Abstract

The application provides a data transmission method and a data transmission device, which can select downlink service data of a first service from data to be transmitted based on service priority information or a first request from terminal equipment under the condition that a network is in a downlink congestion state, and send the data to the terminal equipment by utilizing currently available network resources. By the method provided by the application, the available network resources can be allocated for the first service in the network congestion state, which is beneficial to reasonable allocation of the network resources and improvement of the user experience of the first service in the current area.

Description

Data transmission method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data transmission method and apparatus.

Background

In areas with large traffic such as subway stations, public transportation hub stations and large-scale business superelevation, if the number of users in the current area network is too large, the data volume required to be sent by the current network side is larger than the network resource bearing capacity, network congestion can occur.

Currently, when the network is congested, the network side may reduce the frequency of scheduling the terminal or allocate little network resources to the terminal device. In this case, there may still be multiple services on the terminal device that request data from the network (e.g., the terminal device is browsing a web page while playing a video), and the speed and quality of the response of each service requested data are difficult to guarantee.

However, if the network is congested, the user terminal device has a current urgent service request, such as code scanning and entering of a subway or bus station, code scanning and payment of a business overtaking, and the like, if the response cannot be obtained in time, the service request fails, and the user experience is seriously affected.

Disclosure of Invention

The application provides a data transmission method and a data transmission device, which can select downlink service data of a first service from data to be transmitted based on service priority information or a first request from terminal equipment under the condition that a network is in a downlink congestion state, and send the data to the terminal equipment by utilizing currently available network resources, thereby being beneficial to meeting the use requirement of a user on the first service when the network is congested, improving the access success rate of the first service and improving user experience.

In a first aspect, the present application provides a data transmission method, applied to a network device, including: selecting downlink service data of a first service from data to be transmitted based on service priority information or a first request from a terminal device under the condition that a network is in a downlink congestion state, wherein the service priority information is used for indicating the priority of at least one preset service, the first service is the service with the highest priority in the at least one preset service, the first request is used for requesting the network device to allocate network resources for the first service, and the data to be transmitted is the downlink service data from at least one server; and transmitting downlink service data of the first service to the terminal equipment by utilizing the currently available network resources.

It will be appreciated that the network being in a downstream congestion state refers to congestion occurring on a downstream communication link from the network device to the terminal device, meaning that the amount of data transmitted by the network device to the terminal device (the number of terminal devices may be one or more) exceeds the bandwidth capacity of the link.

Optionally, the service priority information may be service priority information preset by the network device based on service quality (quality of service, qoS) requirements set for different preset services, where the preset services may be one or more services set by the network device, and the first service is a service with a highest priority in at least one preset service. When the network is in a downlink congestion state, the network device may select downlink service data of the first service from the data to be transmitted based on the service identifier of the first service in the service priority information.

It should also be understood that the first request issued by the terminal device is for allocating network resources for a first service request, and that the first service is the highest priority service among the first preset services of the terminal device.

In the embodiment of the application, on one hand, the network equipment can actively select the downlink service data of the first service based on the service priority information under the condition that the network is in a downlink congestion state, and the network resource is actively allocated to the first service, so that the use requirement of users on the main stream service in a certain area is met, and the reasonable allocation of the network resource is facilitated; on the other hand, the network device can select downlink service data of the first service based on the first request of the terminal device, and the network device is beneficial to improving the response speed of the first service with the highest current priority on the user side, improving the first service use success rate of the user and improving the user experience based on the scheduling of the first request of the terminal device.

With reference to the first aspect, in certain implementation manners of the first aspect, the method further includes: receiving the first request; the selecting the downlink service data of the first service from the data to be transmitted includes: and selecting downlink service data of the first service from the data to be transmitted based on the first request.

It should be understood that the downlink service data of the first service selected by the network device from the data to be transmitted based on the first request may be the same or different from the downlink service data of the first service selected by the network device from the data to be transmitted based on the service priority information, and the comparison of the present application is not limited.

With reference to the first aspect, in certain implementations of the first aspect, before the receiving the first request, the method further includes: and sending first indication information to the terminal equipment, wherein the first indication information is used for indicating that the network is in a downlink congestion state.

It should be understood that the network in the downlink congestion state is caused by the amount of data transmitted by the network device to the terminal device exceeding the bandwidth capacity of the link, and is generally monitored by the network device first, and when the network is monitored to be in the downlink congestion state, the network device sends first indication information to the terminal device, so as to trigger the terminal device to send a first request, where the first request is used for requesting the network device to allocate network resources for the first service.

By the method provided by the embodiment, the terminal equipment can timely acquire that the network is in a downlink congestion state and timely send the first request to the network equipment, so that the speed of acquiring downlink service data of the requested first service by the terminal equipment is improved.

With reference to the first aspect, in some implementation manners of the first aspect, the first request includes identification information of the terminal device and identification information of a first server corresponding to the first service; the selecting the downlink service data of the first service from the data to be transmitted includes: and selecting downlink service data of the first service from the data to be transmitted based on the identification information of the terminal equipment and the identification information of the first server.

It should be understood that the data to be transmitted is downlink traffic data from at least one server, which should comprise the server of the first traffic. The data to be transmitted is sent to the terminal device by the server, the data includes the identification information of the source server and the identification information of the target terminal device corresponding to each piece of downlink service data, and the network device can select the downlink service data of the first service from the data to be transmitted based on the identification information of the terminal device and the identification information of the first server.

By the method of the embodiment, the network equipment can accurately select the downlink service data of the first service from the data to be transmitted based on the first request, and send the downlink service data to the terminal equipment by utilizing available network resources, so that the reliability of data transmission is improved.

With reference to the first aspect, in certain implementations of the first aspect, the first request is included in a terminal device assistance message, UAI.

With reference to the first aspect, in certain implementation manners of the first aspect, the network device includes an access network device and a core network device, where the data to be transmitted is stored; the selecting the downlink service data of the first service from the data to be transmitted includes: the core network device selects downlink service data of the first service from the data to be transmitted based on the service priority information or the first request from the terminal device; the method further comprises the steps of: the core network device sends downlink service data of the first service to the access network device; the access network equipment receives downlink service data of the first service from the core network equipment; the sending downlink service data of the first service to the terminal device by using the currently available network resources includes: and the access network equipment transmits downlink service data of the first service to the terminal equipment by utilizing the currently available network resources.

It should be understood that, in a specific implementation, the downlink service data sent by the core network device to the access network device may include, but is not limited to, downlink service data of the first service, where the core network device should send priority information of the first service to the access network device synchronously, so as to indicate that downlink service data of the first service in the downlink service data corresponding to the terminal device has the highest priority, so that the access network device may preferentially allocate currently available resources for downlink service data of the first service in the downlink service data of the terminal device.

It should be further understood that, in the case that the network is in a congestion state, the network resources that can be allocated by the access network device are limited, and in the traffic scheduling algorithm preset by the access network device, based on the priority of the service, the priority of the user, the fair queue scheduling and other principles, certain network resources are allocated to each terminal device that requests data, where part of the network resources are available network resources when the access network device sends the downlink service data of the first service to the terminal device, and the part of the network resources preferably ensure that the downlink service data of the first service is sent.

With reference to the first aspect, in certain implementation manners of the first aspect, the network device includes an access network device and a core network device, and the data to be transmitted is stored in the access network device; the selecting the downlink service data of the first service from the data to be transmitted includes: the access network equipment selects downlink service data of the first service from the data to be transmitted based on the service priority information or the first request from the terminal equipment; the sending downlink service data of the first service to the terminal device by using the currently available network resources includes: and the access network equipment transmits downlink service data of the first service to the terminal equipment by utilizing the currently available network resources.

The method provided by the embodiment selects the downlink service data of the first service by providing the calculation force by the access network equipment, and can share the load of the core network equipment under the condition of high load of the core network equipment, thereby being beneficial to maintaining the stability and reliability of the core network equipment.

In a second aspect, the present application provides another data transmission method, applied to a terminal device, including: transmitting a second request to the network device, wherein the second request is used for requesting downlink service data of the first service; under the condition that a network is in a downlink congestion state, a first request is sent to network equipment, wherein the first request is used for requesting the network equipment to allocate network resources for the first service, and the first service is the service with the highest priority in a first preset service; and receiving downlink service data of the first service from the network equipment.

With reference to the second aspect, in certain implementations of the second aspect, before the sending the first request to the network device, the method further includes: and receiving first indication information from the network equipment, wherein the first indication information is used for indicating that the network is in a downlink congestion state.

With reference to the second aspect, in some implementations of the second aspect, the first request includes identification information of the terminal device and identification information of a first server corresponding to the first service.

With reference to the second aspect, in certain implementations of the second aspect, the first request is included in a terminal device assistance message, UAI.

In a third aspect, the present application provides a data transmission device for performing the method in any one of the possible implementations of the first aspect. Specifically, the data transmission device comprises a transceiver module and a processing module. The processing module is used for selecting downlink service data of a first service from data to be transmitted based on service priority information or a first request from terminal equipment under the condition that the network is in a downlink congestion state, wherein the service priority information is used for indicating the priority of at least one preset service, the first service is the service with the highest priority in the at least one preset service, the first request is used for requesting the network equipment to allocate network resources for the first service, and the data to be transmitted is the downlink service data from at least one server; and the receiving and transmitting module is used for transmitting downlink service data of the first service to the terminal equipment by utilizing the currently available network resources.

Optionally, the transceiver module is further configured to receive the first request; the processing module is further configured to select downlink service data of the first service from the data to be transmitted based on the first request.

Optionally, the transceiver module is further configured to send first indication information to the terminal device, where the first indication information is used to indicate that the network is in a downlink congestion state.

Optionally, the first request includes identification information of the terminal device and identification information of a first server corresponding to the first service; the processing module is specifically configured to select downlink service data of the first service from the data to be transmitted based on the identification information of the terminal device and the identification information of the first server.

Optionally, the first request is included in a terminal device assistance message, UAI.

Optionally, the processing module is specifically configured to select downlink service data of the first service from the data to be transmitted based on the service priority information or the first request from the terminal device; the receiving and transmitting module is also used for transmitting downlink service data of the first service; receiving downlink service data of the first service; and transmitting downlink service data of the first service to the terminal equipment by utilizing the currently available network resources.

Optionally, the processing module is specifically configured to select downlink service data of the first service from the data to be transmitted based on the service priority information or the first request from the terminal device; the transceiver module is specifically configured to send downlink service data of the first service to the terminal device by using currently available network resources.

In a fourth aspect, the present application provides a further data transmission device for performing the method of any one of the possible implementations of the second aspect. Specifically, the data transmission device comprises a transceiver module and a processing module. The receiving and transmitting module is used for sending a second request to the network equipment, wherein the second request is used for requesting downlink service data of the first service; under the condition that a network is in a downlink congestion state, a first request is sent to network equipment, wherein the first request is used for requesting the network equipment to allocate network resources for the first service, and the first service is the service with the highest priority in a first preset service; the processing module is used for receiving downlink service data of the first service from the network equipment.

Optionally, the transceiver module is further configured to receive first indication information from the network device, where the first indication information is used to indicate that the network is in a downlink congestion state.

Optionally, the first request includes identification information of the terminal device and identification information of a first server corresponding to the first service.

In a fifth aspect, the present application provides a further data transmission apparatus comprising a processor coupled to a memory operable to execute instructions in the memory to implement a method as in any one of the possible implementations of the first or second aspects. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the apparatus is a terminal device. When the apparatus is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the apparatus is a chip configured in a terminal device. When the apparatus is a chip configured in a terminal device, the communication interface may be an input/output interface.

In one implementation, the apparatus is a network device. When the apparatus is a network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the apparatus is a chip configured in a network device. When the apparatus is a chip configured in a network device, the communication interface may be an input/output interface.

In a sixth aspect, the present application provides a processor comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive signals via the input circuit and to transmit signals via the output circuit, such that the processor performs the method of any one of the possible implementations of the first or second aspect.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the output signal may be output by, for example and without limitation, a transmitter and transmitted by a transmitter, and the input circuit and the output circuit may be the same circuit, which functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the application does not limit the specific implementation modes of the processor and various circuits.

In a seventh aspect, the present application provides a processing apparatus comprising a processor and a memory. The processor is configured to read instructions stored in the memory and to receive signals via the receiver and to transmit signals via the transmitter to perform the method of any one of the possible implementations of the first or second aspect.

Optionally, the processor is one or more, and the memory is one or more.

Alternatively, the memory may be integrated with the processor or the memory may be separate from the processor.

In a specific implementation process, the memory may be a non-transient (non-transitory) memory, for example, a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It should be appreciated that the related data interaction process, for example, transmitting the indication information, may be a process of outputting the indication information from the processor, and the receiving the capability information may be a process of receiving the input capability information by the processor. Specifically, the data output by the processing may be output to the transmitter, and the input data received by the processor may be from the receiver. Wherein the transmitter and receiver may be collectively referred to as a transceiver.

The processing means in the seventh aspect may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside the processor, and exist separately.

In an eighth aspect, the present application provides a computer program product comprising: a computer program (which may also be referred to as code, or instructions) which, when executed, causes a computer to perform the method of any one of the possible implementations of the first or second aspects described above.

In a ninth aspect, the present application provides a computer readable storage medium storing a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of any one of the possible implementations of the first or second aspects.

Drawings

FIG. 1 is a schematic diagram of a communication system suitable for use in embodiments of the present application;

fig. 2 is a schematic flow chart of a data transmission method according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a data transmission method according to an embodiment of the present application;

fig. 4 is a schematic flow chart of a data transmission method according to an embodiment of the present application;

fig. 5 is a schematic flow chart of a data transmission method according to an embodiment of the present application;

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

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

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

In embodiments of the present application, the words "first," "second," and the like are used to distinguish between identical or similar items that have substantially the same function and effect. For example, the first value and the second value are merely for distinguishing between different values, and are not limited in order. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "may be a relationship that generally indicates that the front and rear associated objects are an" or ". "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) telecommunications systems, fifth generation (5th generation,5G) systems or New Radio (NR), future evolution telecommunications systems, such as sixth generation (6th generation,6G) systems, and the like.

It should also be understood that the technical solution of the embodiment of the present application may also be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (sparse code multiple access, SCMA) system, although SCMA may also be referred to by other names in the communication field; further, the technical solution of the embodiment of the present application may be applied to a multi-carrier transmission system using a non-orthogonal multiple access technology, for example, an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM), a filter bank multi-carrier (FBMC), a general frequency division multiplexing (generalized frequency division multiplexing, GFDM), a filtered orthogonal frequency division multiplexing (F-OFDM) system, and the like using a non-orthogonal multiple access technology.

The terminal device in the embodiment of the present application may also be referred to as: a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment, etc.

The terminal device may be a device providing voice/data connectivity to a user, e.g., a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, examples of some terminal devices include: a mobile phone, tablet, laptop, palmtop, mobile internet device (mobile internet device, MID), wearable device, virtual Reality (VR) device, augmented reality (augmented reality, AR) device, wireless terminal in industrial control (industrial control), wireless terminal in unmanned (self driving), wireless terminal in teleoperation (remote medical surgery), wireless terminal in smart grid (smart grid), wireless terminal in transportation security (transportation safety), wireless terminal in smart city (smart city), wireless terminal in smart home (smart home), cellular phone, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to wireless modem, vehicle-mounted device, wearable device, terminal device in future communication land-based network (public land mobile network), and the like, without limiting the application thereto.

By way of example and not limitation, in the present application, the terminal device may be a terminal device in an internet of things (internet of things, ioT) system. The internet of things is an important component of the development of future information technology, and is mainly technically characterized in that objects are connected with a network through a communication technology, so that man-machine interconnection and an intelligent network for the interconnection of the objects are realized. The terminal device in the embodiment of the application can be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. A wearable device is a portable device that may be worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize powerful functions through software support and data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a terminal device in machine type communication (machine type communication, MTC). The terminal device may be a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, a vehicle-mounted unit, or the like, which are built in the vehicle as one or more components or units, and the vehicle may implement the method provided by the present application through the built-in vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit, or the like. Therefore, the embodiment of the application can also be applied to the Internet of vehicles, such as the vehicle external connection (vehicle to everything, V2X), the long-term evolution technology of workshop communication (long term evolution-vehicle, LTE-V), the vehicle-to-vehicle (V2V) technology and the like.

In addition, in the embodiment of the application, the terminal equipment can also be terminal equipment in an internet of things (internet of things, ioT) system, and the IoT is an important component of the development of future information technology, and the main technical characteristics are that the object is connected with the network through a communication technology, so that the man-machine interconnection and the intelligent network of the internet of things are realized.

The network device to which the present application relates may be a device in communication with a terminal device, where the network device may include an access network device and/or a core network device, which may be a transmission receiving point (transmission reception point, TRP), an evolved NodeB (eNB or eNodeB) in an LTE system, a home base station (e.g., home evolved NodeB, or home Node B, HNB), a Base Band Unit (BBU), a radio controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or may be a network device in a relay station, an access point, a vehicle device, a wearable device, or a future evolved PLMN network, or the like, or may be an Access Point (AP) in a WLAN, or a gNB in an NR system, or may be a city base station, a micro base station, a pico base station, a femto base station, a network controller, a mobility management entity, or the like.

In one network architecture, the network devices may include Centralized Unit (CU) nodes, or Distributed Unit (DU) nodes, or RAN devices including CU nodes and DU nodes, or RAN devices including control plane CU nodes (CU-CP nodes) and user plane CU nodes (CU-UP nodes) and DU nodes.

The network device may serve a cell, where the terminal device communicates with the cell through transmission resources (e.g., frequency domain resources, or spectrum resources) allocated by the network device, where the cell may belong to a macro base station (e.g., macro eNB or macro gNB, etc.), or may belong to a base station corresponding to a small cell (small cell), where the small cell may include: urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

In the embodiment of the application, the terminal equipment or the network equipment comprises a hardware layer, an operating system layer running on the hardware layer and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processes through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address book, word processing software, instant messaging software and the like. Further, the embodiment of the present application is not particularly limited to the specific structure of the execution body of the method provided by the embodiment of the present application, as long as the communication can be performed by the method provided according to the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, and for example, the execution body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call the program and execute the program.

Furthermore, various aspects or features of the application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disk, floppy disk, or magnetic tape, etc.), optical disks (e.g., compact Disk (CD), digital versatile disk (digital versatile disc, DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks, key drives, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

In order to facilitate understanding of the embodiments of the present application, a communication system suitable for use in the embodiments of the present application will be described in detail with reference to fig. 1.

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in embodiments of the present application. The communication system 100 comprises at least one network device, such as the network device 101 shown in fig. 1, and the communication system 100 comprises at least one terminal device, such as the terminal device 102 shown in fig. 1. The network device 101 is communicable with the terminal device 102.

Each network device may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area (cell). The communication system 100 further comprises a terminal device 102 located within the coverage area of the network device 101, which network device 101 may, in one possible case, send downlink traffic data for the terminal device 102.

Optionally, the network device 101 may include an access network device 104 and a core network device 103, where the access network device 104 may be, for example, a base station or a base station controller, and the core network device 103 may communicate with the access network device 104, and the core network device 103 may be, for example, a network entity such as a network controller, a mobility management entity, and the like; the terminal device 102 may be a mobile phone, a tablet computer, a smart bracelet, etc., which is not limited in the embodiment of the present application.

Each of the above-described communication apparatuses, such as the network apparatus 101 or the terminal apparatus 102 in fig. 1, may be configured with a plurality of antennas. The plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. In addition, each communication device may additionally include a transmitter chain and a receiver chain, each of which may include a plurality of components (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.) associated with the transmission and reception of signals, as will be appreciated by one skilled in the art. Thus, communication between the network device and the terminal device may be via multiple antenna technology.

In areas with larger traffic such as subway stations, public transportation hub stations and large-scale business superelevation, the number of users in the current area network is large, if the data volume to be sent by the current network side is larger than the network resource bearing capacity, network congestion can occur, and when terminal equipment is in a network congestion scene, phenomena such as unsmooth video playing, clamping or difficult webpage opening during game play and the like can occur.

Currently, when the network is congested, the network side may reduce the frequency of scheduling the terminal or allocate little network resources to the terminal device. In this case, there may be multiple services on the terminal device that request data from the network (e.g., the terminal device is browsing a web page while playing a video), and the speed and quality of the response of each service requested data are difficult to guarantee.

However, if the network is congested, the terminal device has a current urgent service request, for example, a subway or bus station scans a code and enters a station, and a business surpasses a code and pays, and if the service request cannot be responded in time, the service request fails, and the phenomena of public transportation, subway gate port or business surpasses a cash register to discharge a queue, low traffic efficiency, and the like may occur, which may seriously affect the user experience.

In view of this, the present application provides a data transmission method, so that when a network is in a downlink congestion state, a current urgent service request of a terminal device or a main stream service in a current area can be responded in time, which is beneficial to improving the success rate of the service requested by the terminal device and improving the user experience.

Fig. 2 is a schematic flow chart of a data transmission method 200 according to an embodiment of the present application, and the method 200 may be applied to the communication system shown in fig. 1, but the embodiment of the present application is not limited thereto. As shown in fig. 2, the method 200 may include the steps of:

s201, the terminal equipment sends a second request to the network equipment, wherein the second request is used for requesting downlink service data of the first service. Correspondingly, the network device receives the second request.

S202, under the condition that the network is in a downlink congestion state, the network equipment selects downlink service data of a first service from data to be transmitted based on service priority information, wherein the service priority information is used for indicating the priority of at least one preset service, the first service is the service with the highest priority in the at least one preset service, and the data to be transmitted is the downlink service data from the at least one server.

S203, the network equipment transmits downlink service data of the first service to the terminal equipment which has transmitted the second request by utilizing the current available network resources. Correspondingly, the terminal device receives downlink service data of the first service.

It should be understood that, after the terminal device sends a second request for requesting downlink service data of the first service to the network device, the network device obtains the downlink service data of the first service from the server of the first service based on the identification information of the server of the first service carried in the second request. Optionally, the terminal device may obtain the identification information of the server of the first service from the configuration file of the first service.

It should also be understood that the network being in a downlink congestion state refers to congestion occurring in a downlink communication link from the network device to the terminal device, meaning that the amount of data transmitted by the network device to the terminal device (the number of terminal devices may be one or more) exceeds the bandwidth capacity of the link, and when the network device monitors downlink congestion, downlink traffic data for a first service is selected from the data to be transmitted based on the traffic priority information, and the data is sent to the terminal device of the second request that has been sent.

Optionally, the service priority information may be service priority information preset by the network device based on service quality (quality of service, qoS) requirements set for different preset services, where the preset services may be one or more services set by the network device, and the first service is a service with a highest priority in at least one preset service. Optionally, when the network is in a downlink congestion state, the network device may select downlink service data of the first service from the data to be transmitted based on the service identifier of the first service in the service priority information.

In one possible implementation, the first service may be determined based on the number of requests per unit time for each service within the current area of the network device history. For example, at a large traffic junction station with large traffic flow, network congestion is easy to occur, and more users enter the station and take bus by using code scanning service of corresponding public transportation or subway application program (APP), if the service cannot respond in time, the problem that queuing people flow too much and the passing efficiency is low is caused, and user experience is affected, so that network equipment can set the code scanning entering service in the area as a first service and set the service with the highest priority in preset service so as to ensure that downlink service data corresponding to the service can be transmitted to corresponding terminal equipment in time when the network is congested; similarly, in a large market or supermarket, a large number of users using mobile phones or other intelligent devices to carry out quick payment are more, and the code scanning payment service is the service with the largest number of requested services in the area, namely the code scanning payment service can be used as a first service and is set as the service with the highest priority in preset services. The application does not limit the first service with highest priority in at least one preset service set by the network equipment.

It should also be understood that the first service may correspond to a plurality of APPs, where when there are a plurality of APPs providing the first service, the APPs may be further prioritized based on service priorities, for example, when congestion occurs in a network in a specific area, the first service provided by APP 1 is preset to have the highest priority, and the first service provided by APP 2 is preset to have the second priority. Alternatively, the priority of the APP may be set based on the priority of the service purchased by the APP provider at the network operator, and the priority of the plurality of APPs is not particularly limited when the first service is provided by the plurality of APPs.

It should be noted that, when there are a plurality of APPs providing the first service, the network device may select downlink service data of the first service from the data to be transmitted based on the service identifier and the APP identifier of the first service in the service priority information.

In the embodiment of the application, when the network equipment is in a downlink congestion state, the network equipment selects downlink service data of the first service from data to be transmitted based on service priority information, and sends the downlink service data of the first service to the terminal equipment by utilizing the currently available network resources. By the method provided by the embodiment, when the network device has downlink congestion in the network, the downlink service data of the first service with the highest priority in at least one preset service can be actively selected based on the service priority information, the data is sent to the terminal device which has sent the second request, the network device actively allocates network resources for the first service, the reasonable allocation of the network resources in the downlink congestion state is facilitated, and the use experience of users in the current area on the first service is also facilitated.

Fig. 3 is a schematic flow chart of a data transmission method 300 according to an embodiment of the present application, and the method 300 may be applied to the communication system shown in fig. 1, but the embodiment of the present application is not limited thereto. As shown in fig. 3, the method 300 may include the steps of:

s301, the terminal equipment sends a second request to the network equipment, wherein the second request is used for requesting downlink service data of the first service. Correspondingly, the network device receives the second request.

S302, under the condition that the network is in a downlink congestion state, the terminal equipment sends a first request to the network equipment, wherein the first request is used for requesting the network equipment to allocate network resources for a first service, and the first service is the service with the highest priority in a first preset service. Correspondingly, the network device receives the first request.

S303, the network equipment selects downlink service data of a first service from data to be transmitted based on the first request.

And S304, the network equipment transmits downlink service data of the first service to the terminal equipment by utilizing the currently available network resources. Correspondingly, the terminal device receives downlink service data of the first service.

It should be understood that, in the embodiment of fig. 2, the downlink service data of the first service selected by the network device from the data to be transmitted based on the service priority information may be the same or different from the downlink service data of the first service selected by the network device based on the first request from the terminal device in this embodiment, which is not limited in this application.

In the embodiment of the application, after the terminal equipment sends the second request to the network equipment, the network has downlink congestion, at this time, the downlink service data of the first service requested by the terminal equipment cannot be timely transmitted to the terminal equipment, when the terminal equipment detects that the network is in a downlink congestion state, the terminal equipment sends the first request to the network equipment, requests the network equipment to allocate network resources for the first service, and the network equipment selects the downlink service data of the first service from the data to be transmitted and sends the downlink service data to the terminal equipment based on the first request. By the method provided by the embodiment, the network equipment can allocate network resources for the downlink service data of the first service based on the first request from the terminal equipment, so that the use of the first service with the highest priority in the first preset service by the user is guaranteed, the perception of network congestion by the user is weakened, and the user experience is improved.

In one possible implementation manner, the first preset service is one or more services preset by a user on the terminal device, the user can autonomously set the first preset service which hopes that the network device can allocate network resources preferentially when the network is congested, and the first service is the service with the highest priority in the first preset service. For example, the first preset service may include service 1, service 2, and service 3, where service 3 is the service with the highest priority, and service 2 is higher than service 3 in priority than service 1, when the terminal device sends a plurality of second requests to the network device, where the plurality of second requests include a request for downlink service data of service 3, and the terminal device detects that downlink congestion occurs in the network, the terminal device sends a first request to the network device, requests network resources for service 3, and when the plurality of second requests include service 2 that does not include service 3, the terminal device sends a first request to the network device, where the terminal device requests network resources for service 2.

It should be understood that the first service may be one service or a plurality of services, which is not limited in this aspect of the present application. When the first service is a plurality of services, the plurality of services should also be prioritized.

In another possible implementation manner, the first preset service may be a service on the terminal device that has sent a service request to the network device, and the first service may be a current foreground service of the terminal device when the terminal device monitors that the network is congested. It should be understood that the foreground service refers to a service currently in use that is displayed on a terminal device interface (which may be, for example, a cell phone screen).

Alternatively, the terminal device may determine that the network is in a downlink congestion state by a response delay of a request sent by the terminal device (the response time exceeds the historical average response time), an increase in a packet loss rate of downlink service data (the loss rate is greater than the historical average loss rate), and the like.

As an optional embodiment, the network device sends, before receiving the first request, first indication information to the terminal device, where the first indication information is used to indicate that the network is in a downlink congestion state. Correspondingly, the terminal device receives the first indication information and sends a first request, wherein the first request is used for requesting the network device to allocate network resources for the first service.

It should be understood that the network in the downlink congestion state is caused by the amount of data transmitted by the network device to the terminal device exceeding the bandwidth capacity of the link, which is generally monitored by the network device first, and when the network device monitors that the network is in the downlink congestion state, the network device sends first indication information to the terminal device, so as to trigger the terminal device to timely send a first request, so as to request the network device to allocate network resources for the first service.

By the method provided by the embodiment, the terminal equipment can timely acquire that the network is in the downlink congestion state and timely send the first request to the network equipment, so that the speed of acquiring downlink service data of the requested first service by the terminal equipment is increased, and smoother service experience is brought to users.

In one possible implementation, the first request is included in a terminal device assistance message (UE assistance information, UAI).

It should be understood that the UAI is an auxiliary message sent by the terminal device to the network device, and the UAI message may help the network device to better understand the state and supported functions of the terminal device, so that the network device adjusts the communication parameters and protocols, and provides better communication service quality for the terminal device. Alternatively, the message may be transmitted over signaling radio bearers (signalling radio bearer, SRB), SRB 1 and SRB 3 for radio resource control (radio resource control, RRC) messages, UAI is an RRC message mechanism, so the messages may be carried by SRB 1 and SRB 3. Alternatively, the UAI message may be transmitted via a service access point (service access point, SAP) connecting the radio Link control protocol (radio link control, RLC) and higher layer protocol stacks, the logical channel of which may be a dedicated control channel (dedicated control channel, DCCH).

In one possible implementation, the first request includes identification information of the terminal device and identification information of a first server corresponding to the first service. The step 303 of selecting, by the network device, downlink service data of the first service from the data to be transmitted based on the first request includes: the network device selects downlink service data of the first service from the data to be transmitted based on the identification information of the terminal device and the identification information of the first server.

The identification information of the terminal device is used to uniquely identify the terminal device. Alternatively, the identification information of the terminal device may be an internet protocol (internet protocol, IP) address of the terminal device, a media access control address (media access control address, MAC) address of the terminal device, an international mobile subscriber identity (international mobile subscriber identification, IMSI) number of the terminal device, a chip serial number (electronic serial number, ESN) of the terminal device, etc., which is not particularly limited in the present application.

The identification information of the first server corresponding to the first service is used to uniquely identify the location information of the server providing the first service on the network. Alternatively, the identification information may be IP triplet information of the server (IP address of the server of the first service, port number on the server of the first service for transmitting downlink service data of the first service for the target terminal device, and protocol type of the IP address of the server of the first service).

It should be understood that the data to be transmitted is downlink traffic data from at least one server, which should comprise the server of the first traffic. The data to be transmitted is sent to the terminal device by the server through the network device, the data includes the identification information of the source server and the identification information of the target terminal device corresponding to each piece of downlink service data, and the network device can select the downlink service data of the first service from the data to be transmitted based on the identification information of the terminal device and the identification information of the first server.

In a possible implementation manner, the network device includes an access network device and a core network device, where data to be transmitted is stored in the core network device, and fig. 4 is a schematic flowchart of a data transmission method 400 provided in an embodiment of the present application, where, on the basis of the embodiment of fig. 2 or fig. 3, the method 400 includes the following steps:

s401, the terminal equipment sends a second request, wherein the second request is used for requesting downlink service data of the first service. Correspondingly, the core network device receives a second request from the terminal device forwarded by the access network device.

S402, under the condition that the network is in a downlink congestion state, the terminal equipment sends a first request, wherein the first request is used for requesting the core network equipment to allocate network resources for a first service. Correspondingly, the core network device receives a first request from the terminal device forwarded by the access network device.

S403, the core network device selects downlink service data of the first service from the data to be transmitted based on the first request.

S404, the core network device sends downlink service data of the first service to the access network device. Correspondingly, the access network device receives downlink service data of the first service from the core network device.

S405, the access network device sends downlink service data of the first service to the terminal device by using the currently available network resources. Correspondingly, the terminal equipment receives downlink service data of the first service.

It should be understood that, in a specific implementation, the downlink service data sent by the core network device to the access network device may include, but is not limited to, downlink service data of the first service, where the core network device should send priority information of the first service to the access network device synchronously, so as to indicate that downlink service data of the first service in the downlink service data corresponding to the terminal device has the highest priority, so that the access network device may preferentially allocate currently available resources for downlink service data of the first service in the downlink service data corresponding to the terminal device.

In one possible implementation, the terminal device does not need to perform S402, and the core network device selects downlink service data of the first service from the data to be transmitted based on the service priority information when performing S403.

In a possible implementation manner, before S404, there may be a case that the core network device has sent part of the downlink service data of the first service to the access network device, where the core network device sends the rest of the downlink service data of the first service to the access network device in S404, and at this time, the access network device should send, based on the priority information of the first service currently received, the downlink service data of the first service received before and after to the terminal device with currently available network resources.

In one possible implementation manner, the core network device stores a user routing policy (UE route selection policy, urs p) rule corresponding to an APP providing the first service, and then the first request may further include an identifier of the APP, where the core network device may quickly select server information corresponding to the APP identifier from data to be transmitted according to the identifier of the APP, and select downlink service data of the first service according to the identifier information of the terminal device and the identifier information of the first server corresponding to the first service, which is beneficial to shortening a data processing time of the core network device. Alternatively, the APP identity may be an application identity number (application identify, apid), which is typically sent in combination with the terminal device operating system identity (terminal operating system ID, OSID) when embodied.

It will be appreciated that the urs rules may be pre-configured at the terminal device or issued to the terminal device by a policy control function (policy control function, PCF) network element of the core network device, the pre-configured urs rules only being valid when the PCF does not issue policies of the same type. The urs rules are an important component of terminal device policy control, being used to let APP select (or set up) protocol data unit (protocol data unit, PDU) sessions (or network slices) outside PDU sessions, while QoS rules are used to let IP flows select QoS flows (QoS flows) and data radio bearers (data radio bearers, DRBs) within PDU sessions. The use and flow of the urs rules may refer to third generation partnership project (third generation partnership project,3 GPP) protocol 24526.

Alternatively, a PDU session may provide a connection to the core network device for the terminal device, which is established when the terminal device needs to connect to the core network, and a PDU session may have multiple QoS flows.

Alternatively, the terminal device may establish the PDU session according to the urs rules using a single one of the allowed network slice selection assistance information (network slice selection assistance information, NSSAI) (single network slice selection assistance information, S-NSSAI).

Wherein NSSAI needs to be pre-configured at the terminal device or configured to the terminal device based on PLMN. The allowed NSSAI is an NSSAI provided by the serving PLMN indicating the S-NSSAI value that the terminal device can use in the serving PLMN of the current registration area.

In another possible implementation manner, the network device includes an access network device and a core network device, where data to be transmitted is stored in the access network device, and fig. 5 is a schematic flowchart of a data transmission method 500 provided in an embodiment of the present application, where, on the basis of the embodiment of fig. 2 or fig. 3, the method 500 includes the following steps:

s501, the terminal equipment sends a second request, wherein the second request is used for requesting downlink service data of the first service. Correspondingly, the core network device receives a second request from the terminal device forwarded by the access network device.

S502, the core network equipment sends data to be transmitted to the access network equipment. Correspondingly, the access network device receives data to be transmitted.

S503, under the condition that the network is in a downlink congestion state, the terminal equipment sends a first request, wherein the first request is used for requesting the access network equipment to allocate network resources for a first service. Correspondingly, the access network device receives the first request.

S504, the access network equipment selects downlink service data of a first service from data to be transmitted based on the first request.

S505, the access network device sends downlink service data of the first service to the terminal device by using the current available network resources. Correspondingly, the terminal equipment receives downlink service data of the first service.

In one possible implementation, the terminal device does not need to perform S503, and the access network device selects downlink service data of the first service from the data to be transmitted based on service priority information from the core network device when performing S504.

The method of the embodiment of the present application is described in detail above with reference to fig. 1 to 5, and the apparatus of the embodiment of the present application will be described in detail below with reference to fig. 6 and 7.

Fig. 6 is a schematic diagram of a data transmission apparatus 600 according to an embodiment of the present application. The apparatus 600 includes: a transceiver module 601 and a processing module 602.

In a possible implementation manner, the apparatus 600 is configured to perform the respective flows and steps corresponding to the network device in the above method embodiment.

A processing module 602, configured to select, when the network is in a downlink congestion state, downlink service data of a first service from data to be transmitted or a first request from a terminal device, where the service priority information is used to indicate a priority of at least one preset service, the first service is a service with a highest priority in the at least one preset service, the first request is used to request the network device to allocate network resources for the first service, and the data to be transmitted is downlink service data from the at least one server; the transceiver module 601 is configured to send downlink service data of the first service to the terminal device by using currently available network resources.

Optionally, the transceiver module 601 is further configured to receive a first request; the processing module 602 is specifically configured to select downlink service data of the first service from the data to be transmitted based on the first request.

Optionally, the transceiver module 601 is further configured to send first indication information to the terminal device, where the first indication information is used to indicate that the network is in a downlink congestion state.

Optionally, the first request includes identification information of the terminal device and identification information of a first server corresponding to the first service; the processing module 602 is specifically configured to select downlink service data of the first service from the data to be transmitted based on the identification information of the terminal device and the identification information of the first server.

Optionally, the processing module 602 is specifically configured to select downlink service data of the first service from the data to be transmitted based on service priority information or a first request from the terminal device; the transceiver module 601 is further configured to send downlink service data of the first service; receiving downlink service data of a first service; and transmitting downlink service data of the first service to the terminal equipment by utilizing the currently available network resources.

Optionally, the processing module 602 is specifically configured to select downlink service data of the first service from the data to be transmitted based on service priority information or a first request from the terminal device; the transceiver module 601 is specifically configured to send downlink service data of the first service to the terminal device by using currently available network resources.

In another possible implementation manner, the apparatus 600 is configured to execute each flow and step corresponding to the terminal device in the above method embodiment.

A transceiver module 601, configured to send a second request to the network device, where the second request is used to request downlink service data of the first service; under the condition that the network is in a downlink congestion state, a first request is sent to network equipment, wherein the first request is used for requesting the network equipment to allocate network resources for a first service, and the first service is the service with the highest priority in a first preset service; a processing module 602 is configured to receive downlink traffic data of a first traffic from a network device.

Optionally, the transceiver module 601 is further configured to receive first indication information from the network device, where the first indication information is used to indicate that the network is in a downlink congestion state.

It should be appreciated that the apparatus 600 herein is embodied in the form of functional modules. The term module herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 600 may be specifically a terminal device or a network device in the foregoing embodiment, and the apparatus 600 may be configured to perform each flow and/or step corresponding to the terminal device or the network device in the foregoing method embodiment, which is not repeated herein.

The apparatus 600 of each of the above embodiments has a function of implementing the corresponding steps executed by the terminal device or the network device in the above method; the above functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above. For example, the transceiver module 601 may include a transmitting module and a receiving module, where the transmitting module may be configured to implement respective steps and/or processes for performing a transmitting action corresponding to the transceiver module, and the receiving module may be configured to implement respective steps and/or processes for performing a receiving action corresponding to the transceiver module. The transmitting module may be replaced by a transmitter, and the receiving module may be replaced by a receiver, for performing the transceiving operations and the associated processing operations in the respective method embodiments, respectively.

In an embodiment of the present application, the apparatus 600 in fig. 6 may also be a chip or a chip system, for example: system On Chip (SOC). Correspondingly, the transceiver module 601 may be a transceiver circuit of the chip, which is not limited herein.

Fig. 7 is a schematic diagram of another data transmission apparatus 700 according to an embodiment of the present application. The apparatus 700 includes a processor 701, a transceiver 702, and a memory 703. Wherein the processor 701, the transceiver 702 and the memory 703 are in communication with each other through an internal connection path, the memory 703 is configured to store instructions, and the processor 701 is configured to execute the instructions stored in the memory 703, so as to control the transceiver 702 to transmit signals and/or receive signals.

In one possible implementation, the apparatus 700 is configured to perform the respective flows and steps corresponding to the network devices in the method 200.

In another possible implementation manner, the apparatus 700 is configured to perform the respective processes and steps corresponding to the terminal device in the method 300.

It should be understood that the apparatus 700 may be specifically a terminal device or a network device in the foregoing embodiment, and may be configured to perform each step and/or flow corresponding to the terminal device or the network device in the foregoing method embodiment. The memory 703 may optionally include read only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store information of the device type. The processor 701 may be configured to execute instructions stored in a memory, and when the processor 701 executes instructions stored in the memory, the processor 701 is configured to perform the steps and/or flows of the method embodiments corresponding to the terminal device or the network device described above. The transceiver 702 may include a transmitter that may be used to implement various steps and/or processes for performing transmit actions corresponding to the transceiver and a receiver that may be used to implement various steps and/or processes for performing receive actions corresponding to the transceiver.

It should be appreciated that in embodiments of the present application, the processor of the apparatus described above may be a central processing module (central processing unit, CPU), which may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor executes instructions in the memory to perform the steps of the method described above in conjunction with its hardware. To avoid repetition, a detailed description is not provided herein.

The present application also provides a computer readable storage medium for storing a computer program for implementing the method shown in the above-described method embodiments.

The present application also provides a computer program product comprising a computer program (which may also be referred to as code, or instructions) which, when run on a computer, performs the method as shown in the method embodiments described above.

Those of ordinary skill in the art will appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system, apparatus and module may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module.

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely a specific implementation of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiments of the present application, and all changes and substitutions are included in the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A data transmission method, applied to a network device, the method comprising:

receiving a second request from the terminal device, wherein the second request is used for requesting downlink service data of the first service;

receiving a first request from the terminal equipment under the condition that the network is in a downlink congestion state, wherein the first request is used for requesting the network equipment to allocate network resources for the first service;

selecting downlink service data of the first service from data to be transmitted based on the first request, wherein the first service is the service with the highest priority in at least one preset service, and the data to be transmitted is the downlink service data from at least one server;

and transmitting downlink service data of the first service to the terminal equipment by utilizing the currently available network resources.

2. The method of claim 1, wherein prior to the receiving the first request from the terminal device, the method further comprises:

and sending first indication information to the terminal equipment, wherein the first indication information is used for indicating that the network is in a downlink congestion state.

3. The method of claim 1, wherein the first request includes identification information of the terminal device and identification information of a first server corresponding to the first service;

The selecting the downlink service data of the first service from the data to be transmitted includes:

and selecting downlink service data of the first service from the data to be transmitted based on the identification information of the terminal equipment and the identification information of the first server.

4. The method according to claim 1, characterized in that the first request is included in a terminal equipment assistance message, UAI.

5. The method according to any of claims 1 to 4, wherein the network device comprises an access network device and a core network device, the data to be transmitted being stored in the core network device;

the core network device selects downlink service data of the first service from the data to be transmitted based on the first request;

the method further comprises the steps of:

the core network device sends downlink service data of the first service to the access network device;

the access network equipment receives downlink service data of the first service from the core network equipment;

the sending downlink service data of the first service to the terminal device by using the currently available network resources includes:

And the access network equipment transmits downlink service data of the first service to the terminal equipment by utilizing the currently available network resources.

6. The method according to any of claims 1 to 4, wherein the network device comprises an access network device and a core network device, the data to be transmitted being stored in the access network device;

the access network equipment selects downlink service data of the first service from the data to be transmitted based on the first request;

7. A data transmission method, applied to a terminal device, the method comprising:

transmitting a second request to the network device, wherein the second request is used for requesting downlink service data of the first service;

under the condition that a network is in a downlink congestion state, a first request is sent to network equipment, wherein the first request is used for requesting the network equipment to allocate network resources for the first service, and the first service is the service with the highest priority in a first preset service;

And receiving downlink service data of the first service from the network equipment.

8. The method of claim 7, wherein prior to said sending the first request to the network device, the method further comprises:

and receiving first indication information from the network equipment, wherein the first indication information is used for indicating that the network is in a downlink congestion state.

9. The method of claim 7, wherein the first request includes identification information of the terminal device and identification information of a first server corresponding to the first service.

10. A method according to any of claims 7 to 9, characterized in that the first request is included in a terminal device assistance message, UAI.

11. A data transmission apparatus, comprising: means for implementing the method of any one of claims 1 to 6 or means for implementing the method of any one of claims 7 to 10.

12. A data transmission apparatus, comprising: a processor coupled to a memory for storing a computer program which, when invoked by the processor, causes the apparatus to perform the method of any one of claims 1 to 6 or to perform the method of any one of claims 7 to 10.

13. A computer readable storage medium storing a computer program comprising instructions for implementing the method of any one of claims 1 to 6 or for implementing the method of any one of claims 7 to 10.